@phdthesis{Boetzl2022,
  author    = {B{\"o}tzl, Fabian Alexander},
  title     = {The influence of crop management and adjacent agri-environmental scheme type on natural pest control in differently structured landscapes},
  doi       = {10.25972/OPUS-24140},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-241400},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {2022},
  abstract  = {Summary Chapters I \& II: General Introduction \& General Methods Agriculture is confronted with a rampant loss of biodiversity potentially eroding ecosystem service potentials and adding up to other stressors like climate change or the consequences of land-use change and intensive management. To counter this 'biodiversity crisis', agri-environment schemes (AES) have been introduced as part of ecological intensification efforts. These AES combine special management regimes with the establishment of tailored habitats to create refuges for biodiversity in agricultural landscapes and thus ensure biodiversity mediated ecosystem services such as pest control. However, little is known about how well different AES habitats fulfil this purpose and whether they benefit ecosystem services in adjacent crop fields. Here I investigated how effective different AES habitats are for restoring biodiversity in different agricultural landscapes (Chapter V) and whether they benefit natural pest control in adjacent oilseed rape (Chapter VI) and winter cereal fields (Chapter VII). I recorded biodiversity and pest control potentials using a variety of different methods (Chapters II, V, VI \& VII). Moreover, I validated the methodology I used to assess predator assemblages and predation rates (Chapters III \& IV). Chapter III: How to record ground dwelling predators? Testing methodology is critical as it ensures scientific standards and trustworthy results. Pitfall traps are widely used to record ground dwelling predators, but little is known about how different trap types affect catches. I compared different types of pitfall traps that had been used in previous studies in respect to resulting carabid beetle assemblages. While barrier traps collected more species and deliver more complete species inventories, conventional simple pitfall traps provide reliable results with comparatively little handling effort. Placing several simple pitfall traps in the field can compensate the difference while still saving handling effort.   Chapter IV: How to record predation rates? A plethora of methods has been proposed and used for recording predation rates, but these have rarely been validated before use. I assessed whether a novel approach to record predation, the use of sentinel prey cards with glued on aphids, delivers realistic results. I compared different sampling efforts and showed that obtained predation rates were similar and could be linked to predator (carabid beetle) densities and body-sizes (a proxy often used for food intake rates). Thus, the method delivers reliable and meaningful predation rates. Chapter V: Do AES habitats benefit multi-taxa biodiversity? The main goal of AES is the conservation of biodiversity in agricultural landscapes. I investigated how effectively AES habitats with different temporal continuity fulfil this goal in differently structured landscapes. The different AES habitats investigated had variable effects on local biodiversity. Temporal continuity of AES habitats was the most important predictor with older, more temporally continuous habitats harbouring higher overall biodiversity and different species assemblages in most taxonomic groups than younger AES habitats. Results however varied among taxonomic groups and natural enemies were equally supported by younger habitats. Semi-natural habitats in the surrounding landscape and AES habitat size were of minor importance for local biodiversity and had limited effects. This stresses that newly established AES habitats alone cannot restore farmland biodiversity. Both AES habitats as well as more continuous semi-natural habitats synergistically increase overall biodiversity in agricultural landscapes. Chapter VI: The effects of AES habitats on predators in adjacent oilseed rape fields Apart from biodiversity conservation, ensuring ecosystem service delivery in agricultural landscapes is a crucial goal of AES. I therefore investigated the effects of adjacent AES habitats on ground dwelling predator assemblages in oilseed rape fields. I found clear distance decay effects from the field edges into the field centres on both richness and densities of ground dwelling predators. Direct effects of adjacent AES habitats on assemblages in oilseed rape fields however were limited and only visible in functional traits of carabid beetle assemblages. Adjacent AES habitats doubled the proportion of predatory carabid beetles indicating a beneficial role for pest control. My results show that pest control potentials are largest close to the field edges and beneficial effects are comparably short ranged. Chapter VII: The effects of AES habitats on pest control in adjacent cereal fields Whether distance functions and potential effects of AES habitats are universal across crops is unknown. Therefore, I assessed distance functions of predators, pests, predation rates and yields after crop rotation in winter cereals using the same study design as in the previous year. Resulting distance functions were not uniform and differed from those found in oilseed rape in the previous year, indicating that the interactions between certain adjacent habitats vary with habitat and crop types. Distance functions of cereal-leaf beetles (important cereal pests) and parasitoid wasps were moreover modulated by semi-natural habitat proportion in the surrounding landscapes. Field edges buffered assemblage changes in carabid beetle assemblages over crop rotation confirming their important function as refuges for natural enemies. My results emphasize the beneficial role of field edges for pest control potentials. These findings back the calls for smaller field sizes and more diverse, more heterogeneously structured agricultural landscapes. Chapter VIII: General Discussion Countering biodiversity loss and ensuring ecosystem service provision in agricultural landscapes is intricate and requires strategic planning and restructuring of these landscapes. I showed that agricultural landscapes could benefit maximally from (i) a mixture of AES habitats and semi-natural habitats to support high levels of overall biodiversity and from (ii) smaller continuously managed agricultural areas (i.e. smaller field sizes or the insertion of AES elements within large fields) to maximize natural pest control potentials in crop fields. I propose a mosaic of younger AES habitats and semi-natural habitats to support ecosystem service providers and increase edge density for ecosystem service spillover into adjacent crops. The optimal extent and density of this network as well as the location in which AES and semi-natural habitats interact most beneficially with adjacent crops need further investigation. My results provide a further step towards more sustainable agricultural landscapes that simultaneously allow biodiversity to persist and maintain agricultural production under the framework of ecological intensification.},
  subject      = {{\"O}kologie},
  language  = {en}
}
@article{BoschertKlenkAbtetal.2020,
  author    = {Boschert, Verena and Klenk, Nicola and Abt, Alexander and Raman, Sudha Janaki and Fischer, Markus and Brands, Roman C. and Seher, Axel and Linz, Christian and M{\"u}ller-Richter, Urs D. A. and Bischler, Thorsten and Hartmann, Stefan},
  title     = {The influence of Met receptor level on HGF-induced glycolytic reprogramming in head and neck squamous cell carcinoma},
  series = {International Journal of Molecular Sciences},
  volume    = {21},
  journal   = {International Journal of Molecular Sciences},
  number    = {2},
  issn      = {1422-0067},
  doi       = {10.3390/ijms21020471},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-235995},
  year      = {2020},
  abstract  = {Head and neck squamous cell carcinoma (HNSCC) is known to overexpress a variety of receptor tyrosine kinases, such as the HGF receptor Met. Like other malignancies, HNSCC involves a mutual interaction between the tumor cells and surrounding tissues and cells. We hypothesized that activation of HGF/Met signaling in HNSCC influences glucose metabolism and therefore substantially changes the tumor microenvironment. To determine the effect of HGF, we submitted three established HNSCC cell lines to mRNA sequencing. Dynamic changes in glucose metabolism were measured in real time by an extracellular flux analyzer. As expected, the cell lines exhibited different levels of Met and responded differently to HGF stimulation. As confirmed by mRNA sequencing, the level of Met expression was associated with the number of upregulated HGF-dependent genes. Overall, Met stimulation by HGF leads to increased glycolysis, presumably mediated by higher expression of three key enzymes of glycolysis. These effects appear to be stronger in Met\(^{high}\)-expressing HNSCC cells. Collectively, our data support the hypothesized role of HGF/Met signaling in metabolic reprogramming of HNSCC.},
  language  = {en}
}
@phdthesis{Saverschek2010,
  author    = {Saverschek, Nicole},
  title     = {The influence of the symbiotic fungus on foraging decisions in leaf-cutting ants - Individual behavior and collective patterns},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-52087},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {2010},
  abstract  = {Foraging behavior is a particularly fascinating topic within the studies of social insects. Decisions made by individuals have effects not only on the individual level, but on the colony level as well. Social information available through foraging in a group modulates individual preferences and shapes the foraging pattern of a colony. Identifying parameters influencing foraging behavior in leaf-cutting ants is especially intriguing because they do not harvest for themselves, but for their symbiotic fungus which in turn influences their plant preferences after the incorporation of the substrate. To learn about the substrates' unsuitability for the fungus, ants need to be able to identify the incorporated substrate and associate it with detrimental effects on the fungus. Odor is an important plant characteristic known to be used as recognition key outside the nest in the context of foraging. Chapter 1 shows that foragers are able to recall information about the unsuitability of a substrate through odor alone and consequently reject the substrate, which leads to the conclusion that inside the nest, odor might be enough to indentify incorporated substrate. Identification of plant species is a key factor in the foraging success of leaf-cutting ants as they harvest a multitude of different plant species in a diverse environment and host plant availability and suitability changes throughout the year. Fixed plant preferences of individuals through innate tendencies are therefore only one factor influencing foraging decisions. On the individual as well as the colony level, foraging patterns are flexible and a result of an intricate interplay between the different members involved in the harvesting process: foragers, gardeners and the symbiotic fungus. In chapter 2 I identified several conditions necessary for na{\"i}ve foragers to learn about the unsuitability of substrate inside the nest. In order to exchange of information about the unsuitability of a substrate, the plant in question must be present in the fungus garden. Foragers can learn without own foraging experience and even without experiencing the effects of the substrate on the fungus, solely through the presence of experienced gardeners. The presence of experienced foragers alone on the other hand is not enough to lower the acceptance of substrate by na{\"i}ve foragers in the presence of na{\"i}ve gardeners, even if experienced foragers make up the majority of the workforce inside the nest. Experienced foragers are also able to reverse their previous negative experience and start accepting the substrate again. The individual behavior of foragers and gardeners with different experiential backgrounds in the presence of suitable or unsuitable substrate inside the fungus chamber was investigated in chapter 3 to shed some light on possible mechanisms involved in the flow of information about substrate suitability from the fungus to the ants. Gardeners as well as foragers are involved in the leaf processing and treatment of the applied leaf patches on the fungus. If the plant material is unsuitable, significantly more ants treat the plant patches, but foragers are less active overall. Contacts between workers initiated by either gardeners or foragers occur significantly more frequent and last longer if the substrate is unsuitable. Even though experienced gardeners increase na{\"i}ve foragers' contact rates and duration with other workers in the presence of suitable plant patches, na{\"i}ve foragers show no differences in the handling of the plant patches. This suggests that foragers gain information about plant suitability not only indirectly through the gardening workers, but might also be able to directly evaluate the effects of the substrate on the fungus themselves. Outside the nest, foragers influence each other the trail (chapter 4). Foraging in a group and the presence of social information is a decisive factor in the substrate choice of the individual and leads to a distinct and consentaneous colony response when encountering unfamiliar or unsuitable substrates. As leaf-cutting ants harvest different plant species simultaneously on several trails, foragers gain individual experiences concerning potential host plants. Preferences might vary among individuals of the same colony to the degree that foragers on the same trail perceive a certain substrate as either suitable or unsuitable. If the majority of foragers on the trail perceives one of the currently harvested substrates as unsuitable, na{\"i}ve foragers lower their acceptance within 4 hours. In the absence of a cue in the fungus, na{\"i}ve foragers harvesting by themselves still eventually (within 6 hours) reject the substrate as they encounter experienced gardeners during visits to the nest within foraging bouts. As foraging trails can be up to 100 m long and foragers spend a considerable amount of time away from the nest, learning indirectly from experienced foragers on the trail accelerates the distribution of information about substrate suitability. The level of rejection of a formerly unsuitable substrate after eight hours of foraging by na{\"i}ve foragers correlates with the average percentage of unladen experienced foragers active on the trail. This suggests that unladen experienced foragers might actively contact laden na{\"i}ve workers transmitting information about the unsuitability of the load they carry. Results from experiments were I observed individual laden foragers on their way back to the nest backed up this assumption as individuals were antennated and received bites into the leaf disk they carried. Individuals were contacted significantly more often by nestmates that perceived the carried leaf disk as unsuitable due to previous experience than by nestmates without this experience (chapter 6). Leaf-cutting ants constantly evaluate, learn and re-evaluate the suitability of harvested substrate and adjust their foraging activity accordingly. The importance of the different sources of information within the colony and their effect on the foraging pattern of the colony depend on the presence or absence of each of them as e.g. experienced foragers have a bigger influence on the plant preferences of na{\"i}ve foragers in the absence of a cue in the fungus garden.},
  subject      = {Blattschneiderameisen},
  language  = {en}
}
@article{KressJessenHufnageletal.2023,
  author    = {Kreß, Julia Katharina Charlotte and Jessen, Christina and Hufnagel, Anita and Schmitz, Werner and Da Xavier Silva, Thamara Nishida and Ferreira Dos Santos, Anc{\´e}ly and Mosteo, Laura and Goding, Colin R. and Friedmann Angeli, Jos{\´e} Pedro and Meierjohann, Svenja},
  title     = {The integrated stress response effector ATF4 is an obligatory metabolic activator of NRF2},
  series = {Cell Reports},
  volume    = {42},
  journal   = {Cell Reports},
  number    = {7},
  doi       = {10.1016/j.celrep.2023.112724},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-350312},
  year      = {2023},
  abstract  = {Highlights • The integrated stress response leads to a general ATF4-dependent activation of NRF2 • ATF4 causes a CHAC1-dependent GSH depletion, resulting in NRF2 stabilization • An elevation of NRF2 transcript levels fosters this effect • NRF2 supports the ISR/ATF4 pathway by improving cystine and antioxidant supply Summary The redox regulator NRF2 becomes activated upon oxidative and electrophilic stress and orchestrates a response program associated with redox regulation, metabolism, tumor therapy resistance, and immune suppression. Here, we describe an unrecognized link between the integrated stress response (ISR) and NRF2 mediated by the ISR effector ATF4. The ISR is commonly activated after starvation or ER stress and plays a central role in tissue homeostasis and cancer plasticity. ATF4 increases NRF2 transcription and induces the glutathione-degrading enzyme CHAC1, which we now show to be critically important for maintaining NRF2 activation. In-depth analyses reveal that NRF2 supports ATF4-induced cells by increasing cystine uptake via the glutamate-cystine antiporter xCT. In addition, NRF2 upregulates genes mediating thioredoxin usage and regeneration, thus balancing the glutathione decrease. In conclusion, we demonstrate that the NRF2 response serves as second layer of the ISR, an observation highly relevant for the understanding of cellular resilience in health and disease.},
  language  = {en}
}
@article{VainshteinSanchezBrazmaetal.2010,
  author    = {Vainshtein, Yevhen and Sanchez, Mayka and Brazma, Alvis and Hentze, Matthias W. and Dandekar, Thomas and Muckenthaler, Martina U.},
  title     = {The IronChip evaluation package: a package of perl modules for robust analysis of custom microarrays},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-67869},
  year      = {2010},
  abstract  = {Background: Gene expression studies greatly contribute to our understanding of complex relationships in gene regulatory networks. However, the complexity of array design, production and manipulations are limiting factors, affecting data quality. The use of customized DNA microarrays improves overall data quality in many situations, however, only if for these specifically designed microarrays analysis tools are available. Results: The IronChip Evaluation Package (ICEP) is a collection of Perl utilities and an easy to use data evaluation pipeline for the analysis of microarray data with a focus on data quality of custom-designed microarrays. The package has been developed for the statistical and bioinformatical analysis of the custom cDNA microarray IronChip but can be easily adapted for other cDNA or oligonucleotide-based designed microarray platforms. ICEP uses decision tree-based algorithms to assign quality flags and performs robust analysis based on chip design properties regarding multiple repetitions, ratio cut-off, background and negative controls. Conclusions: ICEP is a stand-alone Windows application to obtain optimal data quality from custom-designed microarrays and is freely available here (see "Additional Files" section) and at: http://www.alice-dsl.net/evgeniy. vainshtein/ICEP/},
  subject      = {Microarray},
  language  = {en}
}
@article{MergetKoetschanHackletal.2012,
  author    = {Merget, Benjamin and Koetschan, Christian and Hackl, Thomas and F{\"o}rster, Frank and Dandekar, Thomas and M{\"u}ller, Tobias and Schultz, J{\"o}rg and Wolf, Matthias},
  title     = {The ITS2 Database},
  series = {Journal of Visual Expression},
  volume    = {61},
  journal   = {Journal of Visual Expression},
  number    = {e3806},
  doi       = {10.3791/3806},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-124600},
  year      = {2012},
  abstract  = {The internal transcribed spacer 2 (ITS2) has been used as a phylogenetic marker for more than two decades. As ITS2 research mainly focused on the very variable ITS2 sequence, it confined this marker to low-level phylogenetics only. However, the combination of the ITS2 sequence and its highly conserved secondary structure improves the phylogenetic resolution1 and allows phylogenetic inference at multiple taxonomic ranks, including species delimitation. The ITS2 Database presents an exhaustive dataset of internal transcribed spacer 2 sequences from NCBI GenBank accurately reannotated. Following an annotation by profile Hidden Markov Models (HMMs), the secondary structure of each sequence is predicted. First, it is tested whether a minimum energy based fold (direct fold) results in a correct, four helix conformation. If this is not the case, the structure is predicted by homology modeling. In homology modeling, an already known secondary structure is transferred to another ITS2 sequence, whose secondary structure was not able to fold correctly in a direct fold. The ITS2 Database is not only a database for storage and retrieval of ITS2 sequence-structures. It also provides several tools to process your own ITS2 sequences, including annotation, structural prediction, motif detection and BLAST search on the combined sequence-structure information. Moreover, it integrates trimmed versions of 4SALE and ProfDistS for multiple sequence-structure alignment calculation and Neighbor Joining tree reconstruction. Together they form a coherent analysis pipeline from an initial set of sequences to a phylogeny based on sequence and secondary structure. In a nutshell, this workbench simplifies first phylogenetic analyses to only a few mouse-clicks, while additionally providing tools and data for comprehensive large-scale analyses.},
  language  = {en}
}
@misc{Selig2007,
  type      = {Master Thesis},
  author    = {Selig, Christian},
  title     = {The ITS2 Database - Application and Extension},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-23895},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {2007},
  abstract  = {Der internal transcribed spacer 2 (ITS2) des ribosomalen Genrepeats ist ein zunehmend wichtiger phylogenetischer Marker, dessen RNA-Sekund{\"a}rstruktur innerhalb vieler eukaryontischer Organismen konserviert ist. Die ITS2-Datenbank hat zum Ziel, eine umfangreiche Ressource f{\"u}r ITS2-Sequenzen und -Sekund{\"a}rstrukturen auf Basis direkter thermodynamischer als auch homologiemodellierter RNA-Faltung zu sein. Ergebnisse: (a) Eine komplette Neufassung der urspr{\"u}nglichen die ITS2-Datenbank generierenden Skripte, angewandt auf einen aktuellen NCBI-Datensatz, deckte mehr als 65.000 ITS2-Strukturen auf. Dies verdoppelt den Inhalt der urspr{\"u}nglichen Datenbank und verdreifacht ihn, wenn partielle Strukturen mit einbezogen werden. (b) Die Endbenutzer-Schnittstelle wurde neu geschrieben, erweitert und ist jetzt in der Lage, benutzerdefinierte Homologiemodellierungen durchzuf{\"u}hren. (c) Andere m{\"o}glichen RNA-Strukturaufkl{\"a}rungsmethoden (suboptimales und formenbasiertes Falten) sind hilfreich, k{\"o}nnen aber Homologiemodellierung nicht ersetzen. (d) Ein Anwendungsfall der ITS2-Datenbank in Zusammenhang mit anderen am Lehrstuhl entwickelten Werkzeugen gab Einblick in die Verwendung von ITS2 f{\"u}r molekulare Phylogenie.},
  subject      = {Phylogenie},
  language  = {en}
}
@article{KoetschanFoersterKelleretal.2010,
  author    = {Koetschan, Christian and Foerster, Frank and Keller, Alexander and Schleicher, Tina and Ruderisch, Benjamin and Schwarz, Roland and Mueller, Tobias and Wolf, Matthias and Schultz, Joerg},
  title     = {The ITS2 Database III-sequences and structures for phylogeny},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-68390},
  year      = {2010},
  abstract  = {The internal transcribed spacer 2 (ITS2) is a widely used phylogenetic marker. In the past, it has mainly been used for species level classifications. Nowadays, a wider applicability becomes apparent. Here, the conserved structure of the RNA molecule plays a vital role. We have developed the ITS2 Database (http://its2.bioapps .biozentrum.uni-wuerzburg.de) which holds information about sequence, structure and taxonomic classification of all ITS2 in GenBank. In the new version, we use Hidden Markov models (HMMs) for the identification and delineation of the ITS2 resulting in a major redesign of the annotation pipeline. This allowed the identification of more than 160 000 correct full ength and more than 50 000 partial structures. In the web interface, these can now be searched with a modified BLAST considering both sequence and structure, enabling rapid taxon sampling. Novel sequences can be annotated using the HMM based approach and modelled according to multiple template structures. Sequences can be searched for known and newly identified motifs. Together, the database and the web server build an exhaustive resource for ITS2 based phylogenetic analyses.},
  subject      = {Biologie},
  language  = {en}
}
@article{MayerLoefflerLozaValdesetal.2019,
  author    = {Mayer, Alexander E. and L{\"o}ffler, Mona C. and Loza Vald{\´e}s, Angel E. and Schmitz, Werner and El-Merahbi, Rabih and Trujillo-Viera, Jonathan and Erk, Manuela and Zhang, Thianzhou and Braun, Ursula and Heikenwalder, Mathias and Leitges, Michael and Schulze, Almut and Sumara, Grzegorz},
  title     = {The kinase PKD3 provides negative feedback on cholesterol and triglyceride synthesis by suppressing insulin signaling},
  series = {Science Signaling},
  journal   = {Science Signaling},
  edition   = {accepted manuscript},
  doi       = {10.1126/scisignal.aav9150},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-250025},
  year      = {2019},
  abstract  = {Hepatic activation of protein kinase C (PKC) isoforms by diacylglycerol (DAG) promotes insulin resistance and contributes to the development of type 2 diabetes (T2D). The closely related protein kinase D (PKD) isoforms act as effectors for DAG and PKC. Here, we showed that PKD3 was the predominant PKD isoform expressed in hepatocytes and was activated by lipid overload. PKD3 suppressed the activity of downstream insulin effectors including the kinase AKT and mechanistic target of rapamycin complex 1 and 2 (mTORC1 and mTORC2). Hepatic deletion of PKD3 in mice improved insulin-induced glucose tolerance. However, increased insulin signaling in the absence of PKD3 promoted lipogenesis mediated by SREBP (sterol regulatory element-binding protein) and consequently increased triglyceride and cholesterol content in the livers of PKD3-deficient mice fed a high-fat diet. Conversely, hepatic-specific overexpression of a constitutively active PKD3 mutant suppressed insulin-induced signaling and caused insulin resistance. Our results indicate that PKD3 provides feedback on hepatic lipid production and suppresses insulin signaling. Therefore, manipulation of PKD3 activity could be used to decrease hepatic lipid content or improve hepatic insulin sensitivity.},
  language  = {en}
}
@article{GroebnerWorstWeischenfeldtetal.2018,
  author    = {Gr{\"o}bner, Susanne N. and Worst, Barbara C. and Weischenfeldt, Joachim and Buchhalter, Ivo and Kleinheinz, Kortine and Rudneva, Vasilisa A. and Johann, Pascal D. and Balasubramanian, Gnana Prakash and Segura-Wang, Maia and Brabetz, Sebastian and Bender, Sebastian and Hutter, Barbara and Sturm, Dominik and Pfaff, Elke and H{\"u}bschmann, Daniel and Zipprich, Gideon and Heinold, Michael and Eils, J{\"u}rgen and Lawerenz, Christian and Erkek, Serap and Lambo, Sander and Waszak, Sebastian and Blattmann, Claudia and Borkhardt, Arndt and Kuhlen, Michaela and Eggert, Angelika and Fulda, Simone and Gessler, Manfred and Wegert, Jenny and Kappler, Roland and Baumhoer, Daniel and Stefan, Burdach and Kirschner-Schwabe, Renate and Kontny, Udo and Kulozik, Andreas E. and Lohmann, Dietmar and Hettmer, Simone and Eckert, Cornelia and Bielack, Stefan and Nathrath, Michaela and Niemeyer, Charlotte and Richter, G{\"u}nther H. and Schulte, Johannes and Siebert, Reiner and Westermann, Frank and Molenaar, Jan J. and Vassal, Gilles and Witt, Hendrik and Burkhardt, Birgit and Kratz, Christian P. and Witt, Olaf and van Tilburg, Cornelis M. and Kramm, Christof M. and Fleischhack, Gudrun and Dirksen, Uta and Rutkowski, Stefan and Fr{\"u}hwald, Michael and Hoff, Katja von and Wolf, Stephan and Klingebeil, Thomas and Koscielniak, Ewa and Landgraf, Pablo and Koster, Jan and Resnick, Adam C. and Zhang, Jinghui and Liu, Yanling and Zhou, Xin and Waanders, Angela J. and Zwijnenburg, Danny A. and Raman, Pichai and Brors, Benedikt and Weber, Ursula D. and Northcott, Paul A. and Pajtler, Kristian W. and Kool, Marcel and Piro, Rosario M. and Korbel, Jan O. and Schlesner, Matthias and Eils, Roland and Jones, David T. W. and Lichter, Peter and Chavez, Lukas and Zapatka, Marc and Pfister, Stefan M.},
  title     = {The landscape of genomic alterations across childhood cancers},
  series = {Nature},
  volume    = {555},
  journal   = {Nature},
  organization    = {ICGC PedBrain-Seq Project, ICGC MMML-Seq Project,},
  doi       = {10.1038/nature25480},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-229579},
  pages     = {321-327},
  year      = {2018},
  abstract  = {Pan-cancer analyses that examine commonalities and differences among various cancer types have emerged as a powerful way to obtain novel insights into cancer biology. Here we present a comprehensive analysis of genetic alterations in a pan-cancer cohort including 961 tumours from children, adolescents, and young adults, comprising 24 distinct molecular types of cancer. Using a standardized workflow, we identified marked differences in terms of mutation frequency and significantly mutated genes in comparison to previously analysed adult cancers. Genetic alterations in 149 putative cancer driver genes separate the tumours into two classes: small mutation and structural/copy-number variant (correlating with germline variants). Structural variants, hyperdiploidy, and chromothripsis are linked to TP53 mutation status and mutational signatures. Our data suggest that 7-8\% of the children in this cohort carry an unambiguous predisposing germline variant and that nearly 50\% of paediatric neoplasms harbour a potentially druggable event, which is highly relevant for the design of future clinical trials.},
  language  = {en}
}
@article{ReinhardBertoliniSaitoetal.2022,
  author    = {Reinhard, Nils and Bertolini, Enrico and Saito, Aika and Sekiguchi, Manabu and Yoshii, Taishi and Rieger, Dirk and Helfrich-F{\"o}rster, Charlotte},
  title     = {The lateral posterior clock neurons of Drosophila melanogaster express three neuropeptides and have multiple connections within the circadian clock network and beyond},
  series = {Journal of Comparative Neurology},
  volume    = {530},
  journal   = {Journal of Comparative Neurology},
  number    = {9},
  doi       = {10.1002/cne.25294},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-276456},
  pages     = {1507 -- 1529},
  year      = {2022},
  abstract  = {Drosophila's lateral posterior neurons (LPNs) belong to a small group of circadian clock neurons that is so far not characterized in detail. Thanks to a new highly specific split-Gal4 line, here we describe LPNs' morphology in fine detail, their synaptic connections, daily bimodal expression of neuropeptides, and propose a putative role of this cluster in controlling daily activity and sleep patterns. We found that the three LPNs are heterogeneous. Two of the neurons with similar morphology arborize in the superior medial and lateral protocerebrum and most likely promote sleep. One unique, possibly wakefulness-promoting, neuron with wider arborizations extends from the superior lateral protocerebrum toward the anterior optic tubercle. Both LPN types exhibit manifold connections with the other circadian clock neurons, especially with those that control the flies' morning and evening activity (M- and E-neurons, respectively). In addition, they form synaptic connections with neurons of the mushroom bodies, the fan-shaped body, and with many additional still unidentified neurons. We found that both LPN types rhythmically express three neuropeptides, Allostatin A, Allostatin C, and Diuretic Hormone 31 with maxima in the morning and the evening. The three LPN neuropeptides may, furthermore, signal to the insect hormonal center in the pars intercerebralis and contribute to rhythmic modulation of metabolism, feeding, and reproduction. We discuss our findings in the light of anatomical details gained by the recently published hemibrain of a single female fly on the electron microscopic level and of previous functional studies concerning the LPN.},
  language  = {en}
}
@article{PaschLinkBecketal.2015,
  author    = {Pasch, Elisabeth and Link, Jana and Beck, Carolin and Scheuerle, Stefanie and Alsheimer, Manfred},
  title     = {The LINC complex component Sun4 plays a crucial role in sperm head formation and fertility},
  series = {Biology Open},
  volume    = {4},
  journal   = {Biology Open},
  doi       = {10.1242/bio.015768},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-125212},
  pages     = {1792-1802},
  year      = {2015},
  abstract  = {LINC complexes are evolutionarily conserved nuclear envelope bridges, physically connecting the nucleus to the peripheral cytoskeleton. They are pivotal for dynamic cellular and developmental processes, like nuclear migration, anchoring and positioning, meiotic chromosome movements and maintenance of cell polarity and nuclear shape. Active nuclear reshaping is a hallmark of mammalian sperm development and, by transducing cytoskeletal forces to the nuclear envelope, LINC complexes could be vital for sperm head formation as well. We here analyzed in detail the behavior and function of Sun4, a bona fide testis-specific LINC component. We demonstrate that Sun4 is solely expressed in spermatids and there localizes to the posterior nuclear envelope, likely interacting with Sun3/Nesprin1 LINC components. Our study revealed that Sun4 deficiency severely impacts the nucleocytoplasmic junction, leads to mislocalization of other LINC components and interferes with the formation of the microtubule manchette, which finally culminates in a globozoospermia-like phenotype. Together, our study provides direct evidence for a critical role of LINC complexes in mammalian sperm head formation and male fertility.},
  language  = {en}
}
@article{ThornSeiboldLeverkusetal.2020,
  author    = {Thorn, Simon and Seibold, Sebastian and Leverkus, Alexandro B and Michler, Thomas and M{\"u}ller, J{\"o}rg and Noss, Reed F and Stork, Nigel and Vogel, Sebastian and Lindenmayer, David B},
  title     = {The living dead: acknowledging life after tree death to stop forest degradation},
  series = {Frontiers in Ecology and the Environment},
  volume    = {18},
  journal   = {Frontiers in Ecology and the Environment},
  number    = {9},
  doi       = {10.1002/fee.2252},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-218575},
  pages     = {505 -- 512},
  year      = {2020},
  abstract  = {Global sustainability agendas focus primarily on halting deforestation, yet the biodiversity crisis resulting from the degradation of remaining forests is going largely unnoticed. Forest degradation occurs through the loss of key ecological structures, such as dying trees and deadwood, even in the absence of deforestation. One of the main drivers of forest degradation is limited awareness by policy makers and the public on the importance of these structures for supporting forest biodiversity and ecosystem function. Here, we outline management strategies to protect forest health and biodiversity by maintaining and promoting deadwood, and propose environmental education initiatives to improve the general awareness of the importance of deadwood. Finally, we call for major reforms to forest management to maintain and restore deadwood; large, old trees; and other key ecological structures.},
  language  = {en}
}
@article{BiscottiGerdolCanapaetal.2016,
  author    = {Biscotti, Maria Assunta and Gerdol, Marco and Canapa, Adriana and Forconi, Mariko and Olmo, Ettore and Pallavicini, Alberto and Barucca, Marco and Schartl, Manfred},
  title     = {The Lungfish Transcriptome: A Glimpse into Molecular Evolution Events at the Transition from Water to Land},
  series = {Scientific Reports},
  volume    = {6},
  journal   = {Scientific Reports},
  number    = {21571},
  doi       = {10.1038/srep21571},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-167753},
  year      = {2016},
  abstract  = {Lungfish and coelacanths are the only living sarcopterygian fish. The phylogenetic relationship of lungfish to the last common ancestor of tetrapods and their close morphological similarity to their fossil ancestors make this species uniquely interesting. However their genome size, the largest among vertebrates, is hampering the generation of a whole genome sequence. To provide a partial solution to the problem, a high-coverage lungfish reference transcriptome was generated and assembled. The present findings indicate that lungfish, not coelacanths, are the closest relatives to land-adapted vertebrates. Whereas protein-coding genes evolve at a very slow rate, possibly reflecting a "living fossil" status, transposable elements appear to be active and show high diversity, suggesting a role for them in the remarkable expansion of the lungfish genome. Analyses of single genes and gene families documented changes connected to the water to land transition and demonstrated the value of the lungfish reference transcriptome for comparative studies of vertebrate evolution.},
  language  = {en}
}
@phdthesis{Beck2005,
  author    = {Beck, Jan},
  title     = {The macroecology of Southeast-Asian hawkmoths (Lepidoptera: Sphingidae)},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-13001},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {2005},
  abstract  = {This study investigates the abundance and geographic distribution of the hawkmoth species (Lepidoptera: Sphingidae) of Southeast-Asia and analyses the resulting patterns of biodiversity, biogeography and macroecology. Data on the distribution of species were retrieved from published and unpublished faunal lists and museum collections (in close cooperation with the Natural History Museum, London). Over 34,500 records of the global distribution of the 380 species that occur in Southeast-Asia (including New Guinea and the Solomon Islands) were used for a GIS-supported estimate of distributional ranges, which can be accessed at http://www.sphingidae-sea.biozentrum.uni-wuerzburg.de, an Internet site that also provides pictures of the species and checklists for 114 islands of the Malesian region. The abundance of species in local assemblages was assessed from nightly collections at artificial light sources. Using a compilation of own samples as well as published and unpublished data from other sources, local abundance data on 93 sites were used for analysis, covering 159 species or 17,676 specimens.},
  language  = {en}
}
@article{KrohneFrankeScheer1978,
  author    = {Krohne, Georg and Franke, Werner W. and Scheer, Ulrich},
  title     = {The major polypeptides of the nuclear pore complex},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-33078},
  year      = {1978},
  abstract  = {Nuclear envelopes of maturing oocytes of various amphibia contain an unusually high number of pore complexes in very close packing. Consequently, nuclear envelopes , which can be manually isolated in great purity, provide a remarkable enrichment of nuclear pore complex material, relative to membranous and other interporous structures. When the polypeptides of nuclear envelopes isolated from oocytes of Xenopl/s la evis and Triturus alpestris are examined by gel electrophoresis, visualized either by staining with Coomassie blue or by radiotluorography after in vitro reaction with [3H]dansyl chloride , a characteristic pattern is obtained (10 major and 15 minor bands). This polypeptide pattern is radically different from that of the nuclear contents isolated from the same cell. Extraction of the nuclear envelope with high salt concentrations and moderateIy ac tive detergents such as Triton X- 100 results in the removal of membrane material but leaves most of the non-membranous structure of the pore complexes. The dry weight of the pore complex (about 0.2 femtograms) remains essentially unchanged during such extractions as measured by quantitative electron microscopy . The extracted preparations which are highly enriched in nuclear pore complex material contain only two major polypeptide components with apparent molecular weights of 150000 and 73000. Components of such an electrophoretic mobility are not present as major bands , if at all , in nuclear contents extracted in the same way. lt is concluded that these two polypeptides are the major constituent protein(s) of the oocyte nuclear pore complex and are specific for this structure. When nuclear envelopes are isolated from rat liver and extracted with high salt buffers and Triton X- 100 similar bands are predominant, but two additional major components of molecular weights of 78000 and 66000 are also recognized. When the rat liver nuclear membranes are further subfractionated material enriched in the 66000 molecular weight component can be separated from the membrane material, indicating that this is relatively loosely associated material , probably a part of the nuclear matrix . The results suggest that the nuclear pore complex is not only a characteristic ubiquitous structure but also contains similar, if not identical , skeletal proteins that are remarkably re sistant to drastic changes of ionic strength as weil as to treatments with detergents and thiol reagents.},
  language  = {en}
}
@article{DusikSenthilanMentzeletal.2014,
  author    = {Dusik, Verena and Senthilan, Pingkalai R. and Mentzel, Benjamin and Hartlieb, Heiko and W{\"u}lbeck, Corina and Yoshii, Taishi and Raabe, Thomas and Helfrich-F{\"o}rster, Charlotte},
  title     = {The MAP Kinase p38 Is Part of Drosophila melanogaster's Circadian Clock},
  series = {PLoS Genetics},
  volume    = {10},
  journal   = {PLoS Genetics},
  number    = {8},
  issn      = {1553-7404},
  doi       = {10.1371/journal.pgen.1004565},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-119433},
  pages     = {e1004565},
  year      = {2014},
  abstract  = {All organisms have to adapt to acute as well as to regularly occurring changes in the environment. To deal with these major challenges organisms evolved two fundamental mechanisms: the p38 mitogen-activated protein kinase (MAPK) pathway, a major stress pathway for signaling stressful events, and circadian clocks to prepare for the daily environmental changes. Both systems respond sensitively to light. Recent studies in vertebrates and fungi indicate that p38 is involved in light-signaling to the circadian clock providing an interesting link between stress-induced and regularly rhythmic adaptations of animals to the environment, but the molecular and cellular mechanisms remained largely unknown. Here, we demonstrate by immunocytochemical means that p38 is expressed in Drosophila melanogaster's clock neurons and that it is activated in a clock-dependent manner. Surprisingly, we found that p38 is most active under darkness and, besides its circadian activation, additionally gets inactivated by light. Moreover, locomotor activity recordings revealed that p38 is essential for a wild-type timing of evening activity and for maintaining ∼ 24 h behavioral rhythms under constant darkness: flies with reduced p38 activity in clock neurons, delayed evening activity and lengthened the period of their free-running rhythms. Furthermore, nuclear translocation of the clock protein Period was significantly delayed on the expression of a dominant-negative form of p38b in Drosophila's most important clock neurons. Western Blots revealed that p38 affects the phosphorylation degree of Period, what is likely the reason for its effects on nuclear entry of Period. In vitro kinase assays confirmed our Western Blot results and point to p38 as a potential "clock kinase" phosphorylating Period. Taken together, our findings indicate that the p38 MAP Kinase is an integral component of the core circadian clock of Drosophila in addition to playing a role in stress-input pathways.},
  language  = {en}
}
@article{HaydnHufnagelGrimmetal.2014,
  author    = {Haydn, Johannes M. and Hufnagel, Anita and Grimm, Johannes and Maurus, Katja and Schartl, Manfred and Meierjohann, Svenja},
  title     = {The MAPK pathway as an apoptosis enhancer in melanoma},
  series = {Oncotarget},
  volume    = {5},
  journal   = {Oncotarget},
  number    = {13},
  issn      = {1949-2553},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-120649},
  pages     = {5040-53},
  year      = {2014},
  abstract  = {Inhibition of RAF/MEK/ERK signaling is beneficial for many patients with BRAFV600E-mutated melanoma. However, primary and secondary resistances restrict long-lasting therapy success. Combination therapies are therefore urgently needed. Here, we evaluate the cellular effect of combining a MEK inhibitor with a genotoxic apoptosis inducer. Strikingly, we observed that an activated MAPK pathway promotes in several melanoma cell lines the pro-apoptotic response to genotoxic stress, and MEK inhibition reduces intrinsic apoptosis. This goes along with MEK inhibitor induced increased RAS and P-AKT levels. The protective effect of the MEK inhibitor depends on PI3K signaling, which prevents the induction of pro-apoptotic PUMA that mediates apoptosis after DNA damage. We could show that the MEK inhibitor dependent feedback loop is enabled by several factors, including EGF receptor and members of the SPRED family. The simultaneous knockdown of SPRED1 and SPRED2 mimicked the effects of MEK inhibitor such as PUMA repression and protection from apoptosis. Our data demonstrate that MEK inhibition of BRAFV600E-positive melanoma cells can protect from genotoxic stress, thereby achieving the opposite of the intended anti-tumorigenic effect of the combination of MEK inhibitor with inducers of intrinsic apoptosis.},
  language  = {en}
}
@article{AlsheimerLinkJahnetal.2013,
  author    = {Alsheimer, Manfred and Link, Jana and Jahn, Daniel and Schmitt, Johannes and G{\"o}b, Eva and Baar, Johannes and Ortega, Sagrario and Benavente, Ricardo},
  title     = {The Meiotic Nuclear Lamina Regulates Chromosome Dynamics and Promotes Efficient Homologous Recombination in the Mouse},
  series = {PLoS Genetics},
  journal   = {PLoS Genetics},
  doi       = {10.1371/journal.pgen.1003261},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-96285},
  year      = {2013},
  abstract  = {The nuclear lamina is the structural scaffold of the nuclear envelope and is well known for its central role in nuclear organization and maintaining nuclear stability and shape. In the past, a number of severe human disorders have been identified to be associated with mutations in lamins. Extensive research on this topic has provided novel important clues about nuclear lamina function. These studies have contributed to the knowledge that the lamina constitutes a complex multifunctional platform combining both structural and regulatory functions. Here, we report that, in addition to the previously demonstrated significance for somatic cell differentiation and maintenance, the nuclear lamina is also an essential determinant for germ cell development. Both male and female mice lacking the short meiosis-specific A-type lamin C2 have a severely defective meiosis, which at least in the male results in infertility. Detailed analysis revealed that lamin C2 is required for telomere-driven dynamic repositioning of meiotic chromosomes. Loss of lamin C2 affects precise synapsis of the homologs and interferes with meiotic double-strand break repair. Taken together, our data explain how the nuclear lamina contributes to meiotic chromosome behaviour and accurate genome haploidization on a mechanistic level.},
  language  = {en}
}
@phdthesis{Schuecker2018,
  author    = {Sch{\"u}cker, Katharina},
  title     = {The molecular architecture of the meiotic chromosome axis as revealed by super-resolution microscopy},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-144199},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {2018},
  abstract  = {During meiosis proteins of the chromosome axis are important for monitoring chromatin structure and condensation, for pairing and segregation of chromosomes, as well as for accurate recombination. They include HORMA-domain proteins, proteins of the DNA repair system, synaptonemal complex (SC) proteins, condensins and cohesins. To understand more about their function in shaping the meiotic chromosome it is crucial to establish a defined model of their molecular architecture. Up to now their molecular organization was analysed using conventional methods, like confocal scanning microscopy (CLSM) and transmission electron microscopy (TEM). Unfortunately, these techniques are limited either by their resolution power or their localization accuracy. In conclusion, a lot of data on the molecular organization of chromosome axis proteins stays elusive. For this thesis the molecular structure of the murine synaptonemal complex (SC) and the localization of its proteins as well as of three cohesins was analysed with isotropic resolution, providing new insights into their architecture and topography on a nanoscale level. This was done using immunofluorescence labelling in combination with super-resolution microscopy, line profiles and average position determination. The results show that the murine SC has a width of 221.6 nm ± 6.1 nm including a central region (CR) of 148.2 nm ± 2.6 nm. In the CR a multi-layered organization of the central element (CE) proteins was verified by measuring their strand diameters and strand distances and additionally by imaging potential anchoring sites of SYCP1 (synaptonemal complex protein 1) to the lateral elements (LEs). We were able to show that the two LEs proteins SYCP2 and SYCP3 do co-localize alongside their axis and that there is no significant preferential localization towards the inner LE axis of SYCP2. The presented results also predict an orderly organization of murine cohesin complexes (CCs) alongside the chromosome axis in germ cells and support the hypothesis that cohesins in the CR of the SC function independent of CCs. In the end new information on the molecular organization of two main components of the murine chromosome axis were retrieved with nanometer precision and previously unknown details of their molecular architecture and topography were unravelled.},
  subject      = {Meiose},
  language  = {en}
}
@phdthesis{Paul2001,
  author    = {Paul, J{\"u}rgen},
  title     = {The Mouthparts of Ants},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-1179130},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {2001},
  abstract  = {Ant mandible movements cover a wide range of forces, velocities and precision. The key to the versatility of mandible functions is the mandible closer muscle. In ants, this muscle is generally composed of distinct muscle fiber types that differ in morphology and contractile properties. Volume proportions of the fiber types are species-specific and correlate with feeding habits. Two biomechanical models explain how the attachment angles are optimized with respect to force and velocity output and how filament-attached fibers help to generate the largest force output from the available head capsule volume. In general, the entire mandible closer muscle is controlled by 10-12 motor neurons, some of which exclusively supply specific muscle fiber groups. Simultaneous recordings of muscle activity and mandible movement reveal that fast movements require rapid contractions of fast muscle fibers. Slow and accurate movements result from the activation of slow muscle fibers. Forceful movements are generated by simultaneous co-activation of all muscle fiber types. For fine control, distinct fiber bundles can be activated independently of each other. Retrograde tracing shows that most dendritic arborizations of the different sets of motor neurons share the same neuropil in the suboesophageal ganglion. In addition, some motor neurons invade specific parts of the neuropil. The labiomaxillary complex of ants is essential for food intake. I investigated the anatomical design of the labiomaxillary complex in various ant species focusing on movement mechanisms. The protraction of the glossa is a non muscular movement. Upon relaxation of the glossa retractor muscles, the glossa protracts elastically. I compared the design of the labiomaxillary complex of ants with that of the honey bee, and suggest an elastic mechanism for glossa protraction in honey bees as well. Ants employ two different techniques for liquid food intake, in which the glossa works either as a passive duct (sucking), or as an up- and downwards moving shovel (licking). For collecting fluids at ad libitum food sources, workers of a given species always use only one of both techniques. The species-specific feeding technique depends on the existence of a well developed crop and on the resulting mode of transporting the fluid food. In order to evaluate the performance of collecting liquids during foraging, I measured fluid intake rates of four ant species adapted to different ecological niches. Fluid intake rate depends on sugar concentration and the associated fluid viscosity, on the species-specific feeding technique, and on the extent of specialization on collecting liquid food. Furthermore, I compared the four ant species in terms of glossa surface characteristics and relative volumes of the muscles that control licking and sucking. Both probably reflect adaptations to the species-specific ecological niche and determine the physiological performance of liquid feeding. Despite species-specific differences, single components of the whole system are closely adjusted to each other according to a general rule.},
  subject      = {Ameisen},
  language  = {en}
}
@article{PattschullWalzGruendletal.2019,
  author    = {Pattschull, Grit and Walz, Susanne and Gr{\"u}ndl, Marco and Schwab, Melissa and R{\"u}hl, Eva and Baluapuri, Apoorva and Cindric-Vranesic, Anita and Kneitz, Susanne and Wolf, Elmar and Ade, Carsten P. and Rosenwald, Andreas and von Eyss, Bj{\"o}rn and Gaubatz, Stefan},
  title     = {The Myb-MuvB complex is required for YAP-dependent transcription of mitotic genes},
  series = {Cell Reports},
  volume    = {27},
  journal   = {Cell Reports},
  number    = {12},
  doi       = {10.1016/j.celrep.2019.05.071},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-202039},
  pages     = {3533-3546},
  year      = {2019},
  abstract  = {YAP and TAZ, downstream effectors of the Hippo pathway, are important regulators of proliferation. Here, we show that the ability of YAP to activate mitotic gene expression is dependent on the Myb-MuvB (MMB) complex, a master regulator of genes expressed in the G2/M phase of the cell cycle. By carrying out genome-wide expression and binding analyses, we found that YAP promotes binding of the MMB subunit B-MYB to the promoters of mitotic target genes. YAP binds to B-MYB and stimulates B-MYB chromatin association through distal enhancer elements that interact with MMB-regulated promoters through chromatin looping. The cooperation between YAP and B-MYB is critical for YAP-mediated entry into mitosis. Furthermore, the expression of genes coactivated by YAP and B-MYB is associated with poor survival of cancer patients. Our findings provide a molecular mechanism by which YAP and MMB regulate mitotic gene expression and suggest a link between two cancer-relevant signaling pathways.},
  language  = {en}
}
@article{KohlRutschmann2018,
  author    = {Kohl, Patrick Laurenz and Rutschmann, Benjamin},
  title     = {The neglected bee trees: European beech forests as a home for feral honey bee colonies},
  series = {PeerJ},
  volume    = {6},
  journal   = {PeerJ},
  number    = {e4602},
  doi       = {10.7717/peerj.4602},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-176512},
  year      = {2018},
  abstract  = {It is a common belief that feral honey bee colonies (Apis mellifera L.) were eradicated in Europe through the loss of habitats, domestication by man and spread of pathogens and parasites. Interestingly, no scientific data are available, neither about the past nor the present status of naturally nesting honeybee colonies. We expected near-natural beech (Fagus sylvatica L.) forests to provide enough suitable nest sites to be a home for feral honey bee colonies in Europe. Here, we made a first assessment of their occurrence and density in two German woodland areas based on two methods, the tracing of nest sites based on forager flight routes (beelining technique), and the direct inspection of potential cavity trees. Further, we established experimental swarms at forest edges and decoded dances for nest sites performed by scout bees in order to study how far swarms from beekeeper-managed hives would potentially move into a forest. We found that feral honey bee colonies regularly inhabit tree cavities in near-natural beech forests at densities of at least 0.11-0.14 colonies/km\(^{2}\). Colonies were not confined to the forest edges; they were also living deep inside the forests. We estimated a median distance of 2,600 m from the bee trees to the next apiaries, while scout bees in experimental swarms communicated nest sites in close distances (median: 470 m). We extrapolate that there are several thousand feral honey bee colonies in German woodlands. These have to be taken in account when assessing the role of forest areas in providing pollination services to the surrounding land, and their occurrence has implications for the species' perception among researchers, beekeepers and conservationists. This study provides a starting point for investigating the life-histories and the ecological interactions of honey bees in temperate European forest environments.},
  language  = {en}
}
@phdthesis{Cook2012,
  author    = {Cook, Mandy},
  title     = {The neurodegenerative Drosophila melanogaster AMPK mutant loechrig},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-72027},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {2012},
  abstract  = {In dieser Doktorarbeit wird die Drosophila Mutante loechrig (loe), die progressive Degeneration des Nervensystems aufweist, weiter beschrieben. In der loe Mutante fehlt eine neuronale Isoform der γ- Untereinheit der Proteinkinase AMPK (AMP-activated protein kinase). Die heterotrimere AMPK (auch als SNF4Aγ bekannt) kontrolliert das Energieniveau der Zelle, was st{\"a}ndiges Beobachten des ATP/AMP- Verh{\"a}ltnis erfordert. AMPK wird durch niedrige Energiekonzentrationen und Beeintr{\"a}chtigungen im Metabolismus, wie zum Beispiel Sauerstoffmangel, aktiviert und reguliert mehrere wichtige Signaltransduktionswege, die den Zellmetabolismus kontrollieren. Jedoch ist die Rolle von AMPK im neuronalen {\"U}berleben noch unklar. Eines der Proteine, dass von AMPK reguliert wird, ist HMGR (hydroxymethylglutaryl-CoA- reductase), ein Schl{\"u}sselenzym in der Cholesterin- und Isoprenoidsynthese. Es wurde gezeigt, dass wenn die Konzentration von HMGR manipuliert wird, auch der Schweregrad des neurodegenerativen Ph{\"a}notyps in loe beeinflusst wird. Obwohl die regulatorische Rolle von AMPK auf HMGR in Drosophila konserviert ist, k{\"o}nnen Insekten Cholesterin nicht de novo synthetisieren. Dennoch ist der Syntheseweg von Isoprenoiden zwischen Vertebraten und Insekten evolution{\"a}r konserviert. Isoprenylierung von Proteinen, wie zum Beispiel von kleinen G-Proteinen, stellt den Proteinen einen hydophobischen Anker bereit, mit denen sie sich an die Zellmembran binden k{\"o}nnen, was in anschließender Aktivierung resultieren kann. In dieser Doktorarbeit wird gezeigt, dass die loe Mutation die Prenylierung von Rho1 und den LIM-Kinasesignalweg beeinflusst, was eine wichtige Rolle im Umsatz von Aktin und axonalem Auswachsen spielt. Die Ergebnisse weisen darauf hin, dass die Mutation in LOE, Hyperaktivit{\"a}t des Isoprenoidsynthesewegs verursacht, was zur erh{\"o}hten Farnesylierung von Rho1 und einer dementsprechend h{\"o}heren Konzentration von Phospho- Cofilin f{\"u}hrt. Eine Mutation in Rho1 verbessert den neurodegenerativen Ph{\"a}notyp und die Lebenserwartung von loe. Der Anstieg vom inaktiven Cofilin in loe f{\"u}hrt zu einer Zunahme von filament{\"o}sen Aktin. Aktin ist am Auswachen von Neuronen beteiligt und Experimente in denen loe Neurone analysiert wurden, gaben wertvolle Einblicke in eine m{\"o}gliche Rolle die AMPK, und dementsprechend Aktin, im Neuronenwachstum spielt. Des Weiteren wurde demonstriert, dass Neurone, die von der loe Mutante stamen, einen verlangsamten axonalen Transport aufweisen, was darauf hinweist dass Ver{\"a}nderungen, die durch den Einfluss von loe auf den Rho1 Signalweg im Zytoskelettnetzwerk hervorgerufen wurden, zur St{\"o}rung des axonalen Transports und anschließenden neuronalen Tod f{\"u}hren. Es zeigte außerdem, dass Aktin nicht nur am neuronalen Auswachsen beteiligt ist, sondern auch wichtig f{\"u}r die Aufrechterhaltung von Neuronen ist. Das bedeutet, dass {\"A}nderungen der Aktindynamik zur progressiven Degeneration von Neuronen f{\"u}hren kann. Zusammenfassend unterstreichen diese Ergebnisse die wichtige Bedeutung von AMPK in den Funktionen und im {\"U}berleben von Neuronen und er{\"o}ffnen einen neuartigen funktionellen Mechanismus in dem {\"A}nderungen in AMPK neuronale Degeneration hervorrufen kann.},
  subject      = {Taufliege},
  language  = {en}
}
@article{ReinhardSchubertBertolinietal.2022,
  author    = {Reinhard, Nils and Schubert, Frank K. and Bertolini, Enrico and Hagedorn, Nicolas and Manoli, Giulia and Sekiguchi, Manabu and Yoshii, Taishi and Rieger, Dirk and Helfrich-F{\"o}rster, Charlotte},
  title     = {The neuronal circuit of the dorsal circadian clock neurons in Drosophila melanogaster},
  series = {Frontiers in Physiology},
  volume    = {13},
  journal   = {Frontiers in Physiology},
  issn      = {1664-042X},
  doi       = {10.3389/fphys.2022.886432},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-272527},
  year      = {2022},
  abstract  = {Drosophila's dorsal clock neurons (DNs) consist of four clusters (DN1as, DN1ps, DN2s, and DN3s) that largely differ in size. While the DN1as and the DN2s encompass only two neurons, the DN1ps consist of ∼15 neurons, and the DN3s comprise ∼40 neurons per brain hemisphere. In comparison to the well-characterized lateral clock neurons (LNs), the neuroanatomy and function of the DNs are still not clear. Over the past decade, numerous studies have addressed their role in the fly's circadian system, leading to several sometimes divergent results. Nonetheless, these studies agreed that the DNs are important to fine-tune activity under light and temperature cycles and play essential roles in linking the output from the LNs to downstream neurons that control sleep and metabolism. Here, we used the Flybow system, specific split-GAL4 lines, trans-Tango, and the recently published fly connectome (called hemibrain) to describe the morphology of the DNs in greater detail, including their synaptic connections to other clock and non-clock neurons. We show that some DN groups are largely heterogenous. While certain DNs are strongly connected with the LNs, others are mainly output neurons that signal to circuits downstream of the clock. Among the latter are mushroom body neurons, central complex neurons, tubercle bulb neurons, neurosecretory cells in the pars intercerebralis, and other still unidentified partners. This heterogeneity of the DNs may explain some of the conflicting results previously found about their functionality. Most importantly, we identify two putative novel communication centers of the clock network: one fiber bundle in the superior lateral protocerebrum running toward the anterior optic tubercle and one fiber hub in the posterior lateral protocerebrum. Both are invaded by several DNs and LNs and might play an instrumental role in the clock network.},
  language  = {en}
}
@article{BoertleinDraegerSchoenaueretal.2018,
  author    = {B{\"o}rtlein, Charlene and Draeger, Annette and Schoenauer, Roman and Kuhlemann, Alexander and Sauer, Markus and Schneider-Schaulies, Sybille and Avota, Elita},
  title     = {The neutral sphingomyelinase 2 is required to polarize and sustain T Cell receptor signaling},
  series = {Frontiers in Immunology},
  volume    = {9},
  journal   = {Frontiers in Immunology},
  number    = {815},
  doi       = {10.3389/fimmu.2018.00815},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-176572},
  year      = {2018},
  abstract  = {By promoting ceramide release at the cytosolic membrane leaflet, the neutral sphingomyelinase 2 (NSM) is capable of organizing receptor and signalosome segregation. Its role in T cell receptor (TCR) signaling remained so far unknown. We now show that TCR-driven NSM activation is dispensable for TCR clustering and initial phosphorylation, but of crucial importance for further signal amplification. In particular, at low doses of TCR stimulatory antibodies, NSM is required for Ca\(^{2+}\) mobilization and T cell proliferation. NSM-deficient T cells lack sustained CD3ζ and ZAP-70 phosphorylation and are unable to polarize and stabilize their microtubular system. We identified PKCζ as the key NSM downstream effector in this second wave of TCR signaling supporting dynamics of microtubule-organizing center (MTOC). Ceramide supplementation rescued PKCζ membrane recruitment and MTOC translocation in NSM-deficient cells. These findings identify the NSM as essential in TCR signaling when dynamic cytoskeletal reorganization promotes continued lateral and vertical supply of TCR signaling components: CD3ζ, Zap70, and PKCζ, and functional immune synapses are organized and stabilized via MTOC polarization.},
  language  = {en}
}
@article{SbieraKunzWeigandetal.2019,
  author    = {Sbiera, Silviu and Kunz, Meik and Weigand, Isabel and Deutschbein, Timo and Dandekar, Thomas and Fassnacht, Martin},
  title     = {The new genetic landscape of Cushing's disease: deubiquitinases in the spotlight},
  series = {Cancers},
  volume    = {11},
  journal   = {Cancers},
  number    = {11},
  issn      = {2072-6694},
  doi       = {10.3390/cancers11111761},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-193194},
  pages     = {1761},
  year      = {2019},
  abstract  = {Cushing's disease (CD) is a rare condition caused by adrenocorticotropic hormone (ACTH)-producing adenomas of the pituitary, which lead to hypercortisolism that is associated with high morbidity and mortality. Treatment options in case of persistent or recurrent disease are limited, but new insights into the pathogenesis of CD are raising hope for new therapeutic avenues. Here, we have performed a meta-analysis of the available sequencing data in CD to create a comprehensive picture of CD's genetics. Our analyses clearly indicate that somatic mutations in the deubiquitinases are the key drivers in CD, namely USP8 (36.5\%) and USP48 (13.3\%). While in USP48 only Met415 is affected by mutations, in USP8 there are 26 different mutations described. However, these different mutations are clustering in the same hotspot region (affecting in 94.5\% of cases Ser718 and Pro720). In contrast, pathogenic variants classically associated with tumorigenesis in genes like TP53 and BRAF are also present in CD but with low incidence (12.5\% and 7\%). Importantly, several of these mutations might have therapeutic potential as there are drugs already investigated in preclinical and clinical setting for other diseases. Furthermore, network and pathway analyses of all somatic mutations in CD suggest a rather unified picture hinting towards converging oncogenic pathways.},
  language  = {en}
}
@article{FrankeScheerKrohneetal.1981,
  author    = {Franke, Werner W. and Scheer, Ulrich and Krohne, Georg and Jarasch, Ernst-Dieter},
  title     = {The nuclear envelope and the architecture of the nuclear periphery},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-33108},
  year      = {1981},
  abstract  = {No abstract available},
  language  = {en}
}
@article{ScheerDabauvalleMerkertetal.1988,
  author    = {Scheer, Ulrich and Dabauvalle, Marie-Christine and Merkert, Hilde and Benavente, Ricardo},
  title     = {The nuclear envelope and the organization of the pore complexes},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-34275},
  year      = {1988},
  abstract  = {No abstract available},
  language  = {en}
}
@book{KartenbeckZentgrafScheeretal.1971,
  author    = {Kartenbeck, J. and Zentgraf, H. and Scheer, Ulrich and Franke, Werner W.},
  title     = {The nuclear envelope in freeze-etching},
  isbn      = {3-540-05538-X},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-40534},
  publisher      = {Universit{\"a}t W{\"u}rzburg},
  year      = {1971},
  abstract  = {No abstract available},
  subject      = {Anatomie},
  language  = {en}
}
@article{GoosDejungJanzenetal.2017,
  author    = {Goos, Carina and Dejung, Mario and Janzen, Christian J. and Butter, Falk and Kramer, Susanne},
  title     = {The nuclear proteome of Trypanosoma brucei},
  series = {PLoS ONE},
  volume    = {12},
  journal   = {PLoS ONE},
  number    = {7},
  doi       = {10.1371/journal.pone.0181884},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-158572},
  pages     = {e0181884},
  year      = {2017},
  abstract  = {Trypanosoma brucei is a protozoan flagellate that is transmitted by tsetse flies into the mammalian bloodstream. The parasite has a huge impact on human health both directly by causing African sleeping sickness and indirectly, by infecting domestic cattle. The biology of trypanosomes involves some highly unusual, nuclear-localised processes. These include polycistronic transcription without classical promoters initiated from regions defined by histone variants, trans-splicing of all transcripts to the exon of a spliced leader RNA, transcription of some very abundant proteins by RNA polymerase I and antigenic variation, a switch in expression of the cell surface protein variants that allows the parasite to resist the immune system of its mammalian host. Here, we provide the nuclear proteome of procyclic Trypanosoma brucei, the stage that resides within the tsetse fly midgut. We have performed quantitative label-free mass spectrometry to score 764 significantly nuclear enriched proteins in comparison to whole cell lysates. A comparison with proteomes of several experimentally characterised nuclear and non-nuclear structures and pathways confirmed the high quality of the dataset: the proteome contains about 80\% of all nuclear proteins and less than 2\% false positives. Using motif enrichment, we found the amino acid sequence KRxR present in a large number of nuclear proteins. KRxR is a sub-motif of a classical eukaryotic monopartite nuclear localisation signal and could be responsible for nuclear localization of proteins in Kinetoplastida species. As a proof of principle, we have confirmed the nuclear localisation of six proteins with previously unknown localisation by expressing eYFP fusion proteins. While proteome data of several T. brucei organelles have been published, our nuclear proteome closes an important gap in knowledge to study trypanosome biology, in particular nuclear-related processes.},
  language  = {en}
}
@article{BakariSoaleIkengaScheibeetal.2021,
  author    = {Bakari-Soale, Majeed and Ikenga, Nonso Josephat and Scheibe, Marion and Butter, Falk and Jones, Nicola G. and Kramer, Susanne and Engstler, Markus},
  title     = {The nucleolar DExD/H protein Hel66 is involved in ribosome biogenesis in Trypanosoma brucei},
  series = {Scientific Reports},
  volume    = {11},
  journal   = {Scientific Reports},
  number    = {1},
  doi       = {10.1038/s41598-021-97020-0},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-263872},
  year      = {2021},
  abstract  = {The biosynthesis of ribosomes is a complex cellular process involving ribosomal RNA, ribosomal proteins and several further trans-acting factors. DExD/H box proteins constitute the largest family of trans-acting protein factors involved in this process. Several members of this protein family have been directly implicated in ribosome biogenesis in yeast. In trypanosomes, ribosome biogenesis differs in several features from the process described in yeast. Here, we have identified the DExD/H box helicase Hel66 as being involved in ribosome biogenesis. The protein is unique to Kinetoplastida, localises to the nucleolus and its depletion via RNAi caused a severe growth defect. Loss of the protein resulted in a decrease of global translation and accumulation of rRNA processing intermediates for both the small and large ribosomal subunits. Only a few factors involved in trypanosome rRNA biogenesis have been described so far and our findings contribute to gaining a more comprehensive picture of this essential process.},
  language  = {en}
}
@article{ScheerWeisenberger1994,
  author    = {Scheer, Ulrich and Weisenberger, Dieter},
  title     = {The nucleolus},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32037},
  year      = {1994},
  abstract  = {No abstract available},
  language  = {en}
}
@phdthesis{Kelber2009,
  author    = {Kelber, Christina},
  title     = {The olfactory system of leafcutting ants: neuroanatomy and the correlation to social organization},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47769},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {2009},
  abstract  = {In leaf-cutting ants (genera Atta and Acromyrmex), the worker caste exhibits a pronounced size-polymorphism, and division of labor is largely dependent on worker size (alloethism). Behavioral studies have shown a rich diversity of olfactory-guided behaviors, and the olfactory system seems to be highly developed and very sensitive. To allow fine-tuned behavioral responses to different tasks, adaptations within the olfactory system of different sized workers are expected. In a recent study, two different phenotypes of the antennal lobe of Atta vollenweideri workers were found: MG- and RG-phenotype (with and without a macroglomerulus, MG). The existence of the macroglomerulus is correlated to the body size of workers, with small workers showing the RG-phenotype and large workers showing the MG-phenotype. In the MG, the information about the releaser component of the trail-pheromone is processed. In the first part of my PhD-project, I focus on quantifying behavioral differences between different sized workers in Atta vollenweideri. The study analyzes the trail following behavior; which can be generally performed by all workers. An artificial trail consisting of the releaser component of the trail-pheromone in decreasing concentration was used to test the trail-following performance of individual workers. The trail-following performance of the polymorphic workers is depended of the existence of the MG in the antennal lobe. Workers possessing the MG-phenotype were significantly better in following a decreasing trail then workers showing the RG-phenotype. In the second part I address the question if there are more structural differences, besides the MG, in the olfactory system of different sized workers. Therefore I analyze whether the glomerular numbers are related to worker size. The antennal lobes of small workers contain ~390 glomeruli (low-number; LN-phenotype), and in large workers I found a substantially higher number of ~440 glomeruli (high-number; HN-phenotype). All LN-phenotype workers and some of the small HN-phenotype workers do not possess an MG (LN-RG-phenotype and HN-RG-phenotype) at all, whereas the remaining majority of HN-phenotype workers do possess an MG (HN-MG-phenotype). Mass-stainings of antennal olfactory receptor neurons revealed that the sensory tracts divide the antennal lobe into six clusters of glomeruli (T1-T6). In the T4-cluster ~50 glomeruli are missing in the LN-phenotype workers. Selective staining of single sensilla and their associated receptor neurons showed that T4-glomeruli are innervated by receptor neurons from the main type of olfactory sensilla, the Sensilla trichodea curvata which are also projecting to glomeruli in all other clusters. The other type of olfactory sensilla, the Sensilla basiconica, exclusively innervates T6-glomeruli. Quantitative analyses revealed a correlation between the number of Sensilla basiconica and the volume of T6 glomeruli in different sized workers. The results of both behavioral and neuroanatomical studies in Atta vollenweideri suggest that developmental plasticity of antennal-lobe phenotypes promotes differences in olfactory-guided behavior which may underlie task specialization within ant colonies. The last part of my project focuses on the evolutionary origin of the macroglomerulus and the number of glomeruli in the antennal lobe. I compared the number, volumes and position of the glomeruli of the antennal lobe of 25 different species from all three major Attini groups (lower, higher and leaf-cutting Attini). The antennal lobes of all investigated Attini comprise a high number of glomeruli (257-630). The highest number was found in Apterostigma cf. mayri. This species is at a basal position within the Attini phylogeny, and a high number of glomeruli might have been advantageous in the evolution of the advanced olfactory systems of this Taxa. The macroglomerulus can be found in all investigated leaf-cutting Attini, but in none of the lower and higher Attini species. It is found only in large workers, and is located close to the entrance of the antennal nerve in all investigated species. The results indicate that the presence of a macroglomerulus in large workers of leaf-cutting Attini is a derived overexpression of a trait in the polymorphic leaf-cutting species. It presumably represents an olfactory adaptation to elaborate foraging and mass recruitment systems, and adds to the complexity of division of labor and social organization known for this group.},
  subject      = {Gehirn},
  language  = {en}
}
@phdthesis{Grue1999,
  author    = {Grue, Pernille},
  title     = {The physiological role of the two isoforms of DNA topoisomerase II in human cells},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-1369},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {1999},
  abstract  = {Unique functions of DNA topoisomerase IIalpha and IIbeta have been suggested. A human cell line which carries a homozygeous mutation of the nuclear localization sequence of the topoisomerase IIalpha gene expresses the isoform outside the nucleus at the onset of mitosis. At mitosis topoisomerase IIbeta diffused away from the chromatin despite the nuclear lack of the IIalpha-form. Chromosome condensation and disjunction was performed with the aid of cytosolic topoisomerase IIalpha which bound to the mitotic chromatin with low affinity. Consequently an increased rate of nondisjunction is observed in these cells. It is concluded that high affinity chromatin binding of topoisomerase IIalpha is essential for chromosome condensation/disjunction and that topoisomerase IIbeta does not adopt these functions. A centrosomal protein was recognized by topoisomerase IIalpha. This topoisomerase IIalpha-like protein resembles a modified form of topoisomerase IIalpha with an apparent size of 205 kDa compared to 170 kDa. The expression of the protein is constant in all stages of the cell cycle and it appears in proliferating as well as in resting cells. If there is not sufficient topoisomerase IIalpha present at mitosis the centrosomal proteins might adopt the function and a mitotic catastrophe in the cells could therefore be prevented.},
  subject      = {DNS-Gyrase},
  language  = {en}
}
@article{BeerHaertelHelfrichFoerster2022,
  author    = {Beer, Katharina and H{\"a}rtel, Stephan and Helfrich-F{\"o}rster, Charlotte},
  title     = {The pigment-dispersing factor neuronal network systematically grows in developing honey bees},
  series = {The Journal of Comparative Neurology},
  volume    = {530},
  journal   = {The Journal of Comparative Neurology},
  number    = {9},
  doi       = {10.1002/cne.25278},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-257300},
  pages     = {1321-1340},
  year      = {2022},
  abstract  = {The neuropeptide pigment-dispersing factor (PDF) plays a prominent role in the circadian clock of many insects including honey bees. In the honey bee brain, PDF is expressed in about 15 clock neurons per hemisphere that lie between the central brain and the optic lobes. As in other insects, the bee PDF neurons form wide arborizations in the brain, but certain differences are evident. For example, they arborize only sparsely in the accessory medulla (AME), which serves as important communication center of the circadian clock in cockroaches and flies. Furthermore, all bee PDF neurons cluster together, which makes it impossible to distinguish individual projections. Here, we investigated the developing bee PDF network and found that the first three PDF neurons arise in the third larval instar and form a dense network of varicose fibers at the base of the developing medulla that strongly resembles the AME of hemimetabolous insects. In addition, they send faint fibers toward the lateral superior protocerebrum. In last larval instar, PDF cells with larger somata appear and send fibers toward the distal medulla and the medial protocerebrum. In the dorsal part of the medulla serpentine layer, a small PDF knot evolves from which PDF fibers extend ventrally. This knot disappears during metamorphosis and the varicose arborizations in the putative AME become fainter. Instead, a new strongly stained PDF fiber hub appears in front of the lobula. Simultaneously, the number of PDF neurons increases and the PDF neuronal network in the brain gets continuously more complex.},
  language  = {en}
}
@article{SchartlKneitzVolkoffetal.2019,
  author    = {Schartl, Manfred and Kneitz, Susanne and Volkoff, Helene and Adolfi, Mateus and Schmidt, Cornelia and Fischer, Petra and Minx, Patrick and Tomlinson, Chad and Meyer, Axel and Warren, Wesley C.},
  title     = {The piranha genome provides molecular insight associated to its unique feeding behavior},
  series = {Genome Biology and Evolution},
  volume    = {11},
  journal   = {Genome Biology and Evolution},
  number    = {8},
  doi       = {10.1093/gbe/evz139},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-202218},
  pages     = {2099-2106},
  year      = {2019},
  abstract  = {The piranha enjoys notoriety due to its infamous predatory behavior but much is still not understood about its evolutionary origins and the underlying molecular mechanisms for its unusual feeding biology. We sequenced and assembled the red-bellied piranha (Pygocentrus nattereri) genome to aid future phenotypic and genetic investigations. The assembled draft genome is similar to other related fishes in repeat composition and gene count. Our evaluation of genes under positive selection suggests candidates for adaptations of piranhas' feeding behavior in neural functions, behavior, and regulation of energy metabolism. In the fasted brain, we find genes differentially expressed that are involved in lipid metabolism and appetite regulation as well as genes that may control the aggression/boldness behavior of hungry piranhas. Our first analysis of the piranha genome offers new insight and resources for the study of piranha biology and for feeding motivation and starvation in other organisms.},
  language  = {en}
}
@article{OthmanNaseemAwadetal.2016,
  author    = {Othman, Eman M. and Naseem, Muhammed and Awad, Eman and Dandekar, Thomas and Stopper, Helga},
  title     = {The Plant Hormone Cytokinin Confers Protection against Oxidative Stress in Mammalian Cells},
  series = {PLoS One},
  volume    = {11},
  journal   = {PLoS One},
  number    = {12},
  doi       = {10.1371/journal.pone.0168386},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-147983},
  pages     = {e0168386},
  year      = {2016},
  abstract  = {Modulating key dynamics of plant growth and development, the effects of the plant hormone cytokinin on animal cells gained much attention recently. Most previous studies on cytokinin effects on mammalian cells have been conducted with elevated cytokinin concentration (in the μM range). However, to examine physiologically relevant dose effects of cytokinins on animal cells, we systematically analyzed the impact of kinetin in cultured cells at low and high concentrations (1nM-10μM) and examined cytotoxic and genotoxic conditions. We furthermore measured the intrinsic antioxidant activity of kinetin in a cell-free system using the Ferric Reducing Antioxidant Power assay and in cells using the dihydroethidium staining method. Monitoring viability, we looked at kinetin effects in mammalian cells such as HL60 cells, HaCaT human keratinocyte cells, NRK rat epithelial kidney cells and human peripheral lymphocytes. Kinetin manifests no antioxidant activity in the cell free system and high doses of kinetin (500 nM and higher) reduce cell viability and mediate DNA damage in vitro. In contrast, low doses (concentrations up to 100 nM) of kinetin confer protection in cells against oxidative stress. Moreover, our results show that pretreatment of the cells with kinetin significantly reduces 4-nitroquinoline 1-oxide mediated reactive oxygen species production. Also, pretreatment with kinetin retains cellular GSH levels when they are also treated with the GSH-depleting agent patulin. Our results explicitly show that low kinetin doses reduce apoptosis and protect cells from oxidative stress mediated cell death. Future studies on the interaction between cytokinins and human cellular pathway targets will be intriguing.},
  language  = {en}
}
@phdthesis{Froese2008,
  author    = {Froese, Alexander},
  title     = {The Popeye domain containing gene 2 (Popdc2): Generation and functional characterization of a null mutant in mice and promoter analysis},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-26473},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {2008},
  abstract  = {In the present study a knockout mouse model of the Popeye domain containing gene 2 (Popdc2) was generated and functionally characterized. The Popdc2 null mutants were viable with an apparent normal life span. ß-galactosidase staining to visualize the expression of the Popdc2-LacZ transgene revealed the presence of the Popdc2 in heart, bladder, smooth and skeletal muscles. In the heart LacZ was found to be present in cardiac myocytes with elevated levels in the myocytes of the cardiac conduction system. Holter ECGs records of the heart function of the 8 months (but not in 3 and 6 months) old mutant and WT littermates revealed a pronounced sinus bradycardia in the mutant mice in response to three different stress regimens: isoproterenol infusion, mental stress and a physical exercise. Histological examination of the Popdc2 null mutants SAN revealed structural alterations as was detected by HCN4 staining. Moreover, volume measurements using 3-D reconstructions of serial sections stained with HCN4 antibody revealed a volume reduction of about 30\% in the mutant SAN. Taken together data presented in this study suggest that the Popdc2 KO mouse line may serve as an animal model of human sick sinus syndrome. In the second part of this thesis the Popdc2 gene promoter was analyzed. Three transcription factors binding sites were predicted in the promoter region and characterized.},
  subject      = {Herz},
  language  = {en}
}
@article{GesslerGrupeGrzeschiketal.1992,
  author    = {Gessler, Manfred and Grupe, Andrew and Grzeschik, Karl-Heinz and Pongs, Olaf},
  title     = {The potassium channel gene HK1 maps to human chromosome 11p14.1, close to the FSHB gene},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-59184},
  year      = {1992},
  abstract  = {Transiently activating (A-type) potassium (K) channels are important regulators of action potential and action potential firing frequencies. HK1 designates the firsthuman cDNA that is highly homologous to the rat RCK4 cDNA that codes for an A-type K-channel. The HK1 channel is expressed in heart. By somatic cell hybrid analysis, the HK1 gene has been assigned to human chromosome 11p13-pl4, the WAGR deletion region (Wilms tumor, aniridia, genito-urinary abnormalities and mental retardation). Subsequent pulsed field gel (PFG) analysis and comparison with the well-established PFG map of this region localized the gene to 11p14, 200-600 kb telomeric to the FSHB gene.},
  subject      = {Biochemie},
  language  = {en}
}
@article{HudsonNewboldContuetal.2014,
  author    = {Hudson, Lawrence N. and Newbold, Tim and Contu, Sara and Hill, Samantha L. L. and Lysenko, Igor and De Palma, Adriana and Phillips, Helen R. P. and Senior, Rebecca A. and Bennett, Dominic J. and Booth, Hollie and Choimes, Argyrios and Correia, David L. P. and Day, Julie and Echeverria-Londono, Susy and Garon, Morgan and Harrison, Michelle L. K. and Ingram, Daniel J. and Jung, Martin and Kemp, Victoria and Kirkpatrick, Lucinda and Martin, Callum D. and Pan, Yuan and White, Hannah J. and Aben, Job and Abrahamczyk, Stefan and Adum, Gilbert B. and Aguilar-Barquero, Virginia and Aizen, Marcelo and Ancrenaz, Marc and Arbelaez-Cortes, Enrique and Armbrecht, Inge and Azhar, Badrul and Azpiroz, Adrian B. and Baeten, Lander and B{\´a}ldi, Andr{\´a}s and Banks, John E. and Barlow, Jos and Bat{\´a}ry, P{\´e}ter and Bates, Adam J. and Bayne, Erin M. and Beja, Pedro and Berg, Ake and Berry, Nicholas J. and Bicknell, Jake E. and Bihn, Jochen H. and B{\"o}hning-Gaese, Katrin and Boekhout, Teun and Boutin, Celine and Bouyer, Jeremy and Brearley, Francis Q. and Brito, Isabel and Brunet, J{\"o}rg and Buczkowski, Grzegorz and Buscardo, Erika and Cabra-Garcia, Jimmy and Calvino-Cancela, Maria and Cameron, Sydney A. and Cancello, Eliana M. and Carrijo, Tiago F. and Carvalho, Anelena L. and Castro, Helena and Castro-Luna, Alejandro A. and Cerda, Rolando and Cerezo, Alexis and Chauvat, Matthieu and Clarke, Frank M. and Cleary, Daniel F. R. and Connop, Stuart P. and D'Aniello, Biagio and da Silva, Pedro Giovani and Darvill, Ben and Dauber, Jens and Dejean, Alain and Diek{\"o}tter, Tim and Dominguez-Haydar, Yamileth and Dormann, Carsten F. and Dumont, Bertrand and Dures, Simon G. and Dynesius, Mats and Edenius, Lars and Elek, Zolt{\´a}n and Entling, Martin H. and Farwig, Nina and Fayle, Tom M. and Felicioli, Antonio and Felton, Annika M. and Ficetola, Gentile F. and Filgueiras, Bruno K. C. and Fonte, Steve J. and Fraser, Lauchlan H. and Fukuda, Daisuke and Furlani, Dario and Ganzhorn, J{\"o}rg U. and Garden, Jenni G. and Gheler-Costa, Carla and Giordani, Paolo and Giordano, Simonetta and Gottschalk, Marco S. and Goulson, Dave and Gove, Aaron D. and Grogan, James and Hanley, Mick E. and Hanson, Thor and Hashim, Nor R. and Hawes, Joseph E. and H{\´e}bert, Christian and Helden, Alvin J. and Henden, John-Andr{\´e} and Hern{\´a}ndez, Lionel and Herzog, Felix and Higuera-Diaz, Diego and Hilje, Branko and Horgan, Finbarr G. and Horv{\´a}th, Roland and Hylander, Kristoffer and Horv{\´a}th, Roland and Isaacs-Cubides, Paola and Ishitani, Mashiro and Jacobs, Carmen T. and Jaramillo, Victor J. and Jauker, Birgit and Jonsell, Matts and Jung, Thomas S. and Kapoor, Vena and Kati, Vassiliki and Katovai, Eric and Kessler, Michael and Knop, Eva and Kolb, Annette and K{\"o}r{\"o}si, {\`A}d{\´a}m and Lachat, Thibault and Lantschner, Victoria and Le F{\´e}on, Violette and LeBuhn, Gretchen and L{\´e}gar{\´e}, Jean-Philippe and Letcher, Susan G. and Littlewood, Nick A. and L{\´o}pez-Quintero, Carlos A. and Louhaichi, Mounir and L{\"o}vei, Gabor L. and Lucas-Borja, Manuel Esteban and Luja, Victor H. and Maeto, Kaoru and Magura, Tibor and Mallari, Neil Aldrin and Marin-Spiotta, Erika and Marhall, E. J. P. and Mart{\´i}nez, Eliana and Mayfield, Margaret M. and Mikusinski, Gregorz and Milder, Jeffery C. and Miller, James R. and Morales, Carolina L. and Muchane, Mary N. and Muchane, Muchai and Naidoo, Robin and Nakamura, Akihiro and Naoe, Shoji and Nates-Parra, Guiomar and Navarerete Gutierrez, Dario A. and Neuschulz, Eike L. and Noreika, Norbertas and Norfolk, Olivia and Noriega, Jorge Ari and N{\"o}ske, Nicole M. and O'Dea, Niall and Oduro, William and Ofori-Boateng, Caleb and Oke, Chris O. and Osgathorpe, Lynne M. and Paritsis, Juan and Parrah, Alejandro and Pelegrin, Nicol{\´a}s and Peres, Carlos A. and Persson, Anna S. and Petanidou, Theodora and Phalan, Ben and Philips, T. Keith and Poveda, Katja and Power, Eileen F. and Presley, Steven J. and Proen{\c{c}}a, V{\^a}nia and Quaranta, Marino and Quintero, Carolina and Redpath-Downing, Nicola A. and Reid, J. Leighton and Reis, Yana T. and Ribeiro, Danilo B. and Richardson, Barbara A. and Richardson, Michael J. and Robles, Carolina A. and R{\"o}mbke, J{\"o}rg and Romero-Duque, Luz Piedad and Rosselli, Loreta and Rossiter, Stephen J. and Roulston, T'ai H. and Rousseau, Laurent and Sadler, Jonathan P. and S{\´a}fi{\´a}n, Szbolcs and Salda{\~n}a-V{\´a}squez, Romeo A. and Samneg{\aa}rd, Ulrika and Sch{\"u}epp, Christof and Schweiger, Oliver and Sedlock, Jodi L. and Shahabuddin, Ghazala and Sheil, Douglas and Silva, Fernando A. B. and Slade, Eleanor and Smith-Pardo, Allan H. and Sodhi, Navjot S. and Somarriba, Eduardo J. and Sosa, Ram{\´o}n A. and Stout, Jane C. and Struebig, Matthew J. and Sung, Yik-Hei and Threlfall, Caragh G. and Tonietto, Rebecca and T{\´o}thm{\´e}r{\´e}sz, B{\´e}la and Tscharntke, Teja and Turner, Edgar C. and Tylianakis, Jason M. and Vanbergen, Adam J. and Vassilev, Kiril and Verboven, Hans A. F. and Vergara, Carlos H. and Vergara, Pablo M. and Verhulst, Jort and Walker, Tony R. and Wang, Yanping and Watling, James I. and Wells, Konstans and Williams, Christopher D. and Willig, Michael R. and Woinarski, John C. Z. and Wolf, Jan H. D. and Woodcock, Ben A. and Yu, Douglas W. and Zailsev, Andreys and Collen, Ben and Ewers, Rob M. and Mace, Georgina M. and Purves, Drew W. and Scharlemann, J{\"o}rn P. W. and Pervis, Andy},
  title     = {The PREDICTS database: a global database of how local terrestrial biodiversity responds to human impacts},
  series = {Ecology and Evolution},
  volume    = {4},
  journal   = {Ecology and Evolution},
  number    = {24},
  doi       = {10.1002/ece3.1303},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-114425},
  pages     = {4701 - 4735},
  year      = {2014},
  abstract  = {Biodiversity continues to decline in the face of increasing anthropogenic pressures such as habitat destruction, exploitation, pollution and introduction of alien species. Existing global databases of species' threat status or population time series are dominated by charismatic species. The collation of datasets with broad taxonomic and biogeographic extents, and that support computation of a range of biodiversity indicators, is necessary to enable better understanding of historical declines and to project - and avert - future declines. We describe and assess a new database of more than 1.6 million samples from 78 countries representing over 28,000 species, collated from existing spatial comparisons of local-scale biodiversity exposed to different intensities and types of anthropogenic pressures, from terrestrial sites around the world. The database contains measurements taken in 208 (of 814) ecoregions, 13 (of 14) biomes, 25 (of 35) biodiversity hotspots and 16 (of 17) megadiverse countries. The database contains more than 1\% of the total number of all species described, and more than 1\% of the described species within many taxonomic groups - including flowering plants, gymnosperms, birds, mammals, reptiles, amphibians, beetles, lepidopterans and hymenopterans. The dataset, which is still being added to, is therefore already considerably larger and more representative than those used by previous quantitative models of biodiversity trends and responses. The database is being assembled as part of the PREDICTS project (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems - ). We make site-level summary data available alongside this article. The full database will be publicly available in 2015.},
  language  = {en}
}
@article{RoemischTropschugSebaldetal.1987,
  author    = {R{\"o}misch, J. and Tropschug, M. and Sebald, Walter and Weiss, H.},
  title     = {The primary structure of cytochrome c\(_1\) from Neurospora crassa},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-62578},
  year      = {1987},
  abstract  = {No abstract available},
  subject      = {Biochemie},
  language  = {en}
}
@article{HarnischWeissSebald1985,
  author    = {Harnisch, U. and Weiss, H. and Sebald, Walter},
  title     = {The primary structure of the iron-sulfur subunit of ubiquinol-cytochrome c reductase from Neurospora, determined by cDNA and gene sequencing},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-62631},
  year      = {1985},
  abstract  = {No abstract available},
  subject      = {Biochemie},
  language  = {en}
}
@article{FrankDengjelWilflingetal.2015,
  author    = {Frank, Daniel O. and Dengjel, J{\"o}rn and Wilfling, Florian and Kozjak-Pavlovic, Vera and H{\"a}cker, Georg and Weber, Arnim},
  title     = {The Pro-Apoptotic BH3-Only Protein Bim Interacts with Components of the Translocase of the Outer Mitochondrial Membrane (TOM)},
  series = {PLoS ONE},
  volume    = {10},
  journal   = {PLoS ONE},
  number    = {4},
  doi       = {10.1371/journal.pone.0123341},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-143301},
  pages     = {e0123341},
  year      = {2015},
  abstract  = {The pro-apoptotic Bcl-2-family protein Bim belongs to the BH3-only proteins known as initiators of apoptosis. Recent data show that Bim is constitutively inserted in the outer mitochondrial membrane via a C-terminal transmembrane anchor from where it can activate the effector of cytochrome c-release, Bax. To identify regulators of Bim-activity, we conducted a search for proteins interacting with Bim at mitochondria. We found an interaction of Bim with Tom70, Tom20 and more weakly with Tom40, all components of the Translocase of the Outer Membrane (TOM). In vitro import assays performed on tryptically digested yeast mitochondria showed reduced Bim insertion into the outer mitochondrial membrane (OMM) indicating that protein receptors may be involved in the import process. However, RNAi against components of TOM (Tom40, Tom70, Tom22 or Tom20) by siRNA, individually or in combination, did not consistently change the amount of Bim on HeLa mitochondria, either at steady state or upon de novo-induction. In support of this, the individual or combined knockdowns of TOM receptors also failed to alter the susceptibility of HeLa cells to Bim-induced apoptosis. In isolated yeast mitochondria, lack of Tom70 or the TOM-components Tom20 or Tom22 alone did not affect the import of Bim into the outer mitochondrial membrane. In yeast, expression of Bim can sensitize the cells to Bax-dependent killing. This sensitization was unaffected by the absence of Tom70 or by an experimental reduction in Tom40. Although thus the physiological role of the Bim-TOM-interaction remains unclear, TOM complex components do not seem to be essential for Bim insertion into the OMM. Nevertheless, this association should be noted and considered when the regulation of Bim in other cells and situations is investigated.},
  language  = {en}
}
@article{HoppeSchairerSebald1980,
  author    = {Hoppe, J. and Schairer, H. U. and Sebald, Walter},
  title     = {The proteolipid of a mutant ATPase from Escherichia coli defective in H\(^+\)-conduction contains a glycine instead of the carbodiimide-reactive aspartyl residue},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-62769},
  year      = {1980},
  abstract  = {No abstract available},
  subject      = {Biochemie},
  language  = {en}
}
@article{HoppeSebald1984,
  author    = {Hoppe, J. and Sebald, Walter},
  title     = {The proton conducting F0-part of bacterial ATP synthases},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-82019},
  year      = {1984},
  abstract  = {No abstract available},
  subject      = {Biologie},
  language  = {en}
}
@article{PoethkePfenningHovestadt2007,
  author    = {Poethke, Hans J. and Pfenning, Brenda and Hovestadt, Thomas},
  title     = {The relative contribution of individual and kin selection to the evolution of density-dependent dispersal rates},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-48225},
  year      = {2007},
  abstract  = {Questions: What are the relative contributions of kin selection and individual selection to the evolution of dispersal rates in fragmented landscapes? How do environmental parameters influence the relative contributions of both evolutionary forces? Features of the model: Individual-based simulation model of a metapopulation. Logistic local growth dynamics and density-dependent dispersal. An optional shuffling algorithm allows the continuous destruction of any genetic structure in the metapopulation. Ranges of key variables: Depending on dispersal mortality (0.05-0.4) and the strength of environmental fluctuations, mean dispersal probability varied between 0.05 and 0.5. Conclusions: For local population sizes of 100 individuals, kin selection alone could account for dispersal probabilities of up to 0.1. It may result in a ten-fold increase of optimal dispersal rates compared with those predicted on the basis of individual selection alone. Such a substantial contribution of kin selection to dispersal is restricted to cases where the overall dispersal probabilities are small (textless 0.1). In the latter case, as much as 30\% of the total fitness of dispersing individuals could arise from the increased reproduction of kin left in the natal patch.},
  language  = {en}
}
@article{Scheer1975,
  author    = {Scheer, Ulrich},
  title     = {The rifamycin derivative AF/013 is cytolytic},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32429},
  year      = {1975},
  abstract  = {No abstract available},
  language  = {en}
}
@article{StormsJakharMitesseretal.2022,
  author    = {Storms, Mona and Jakhar, Aryan and Mitesser, Oliver and Jechow, Andreas and H{\"o}lker, Franz and Degen, Tobias and Hovestadt, Thomas and Degen, Jacqueline},
  title     = {The rising moon promotes mate finding in moths},
  series = {Communications Biology},
  volume    = {5},
  journal   = {Communications Biology},
  doi       = {10.1038/s42003-022-03331-x},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-301365},
  year      = {2022},
  abstract  = {To counteract insect decline, it is essential to understand the underlying causes, especially for key pollinators such as nocturnal moths whose ability to orientate can easily be influenced by ambient light conditions. These comprise natural light sources as well as artificial light, but their specific relevance for moth orientation is still unknown. We investigated the influence of moonlight on the reproductive behavior of privet hawkmoths (Sphinx ligustri) at a relatively dark site where the Milky Way was visible while the horizon was illuminated by distant light sources and skyglow. We show that male moths use the moon for orientation and reach females significantly faster with increasing moon elevation. Furthermore, the choice of flight direction depended on the cardinal position of the moon but not on the illumination of the horizon caused by artificial light, indicating that the moon plays a key role in the orientation of male moths.},
  language  = {en}
}
@article{RhiemEngelGraeseretal.2012,
  author    = {Rhiem, Kerstin and Engel, Christoph and Graeser, Monika and Zachariae, Silke and Kast, Karin and Kiechle, Marion and Ditsch, Nina and Janni, Wolfgang and Mundhenke, Christoph and Golatta, Michael and Varga, Dominic and Preisler-Adams, Sabine and Heinrich, Tilman and Bick, Ulrich and Gadzicki, Dorothea and Briest, Susanne and Meindl, Alfons and Schmutzler, Rita K.},
  title     = {The risk of contralateral breast cancer in patients from BRCA1/2 negative high risk families as compared to patients from BRCA1 or BRCA2 positive families: a retrospective cohort study},
  series = {Breast Cancer Research},
  volume    = {14},
  journal   = {Breast Cancer Research},
  number    = {6},
  doi       = {10.1186/bcr3369},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-135715},
  year      = {2012},
  abstract  = {Introduction: While it has been reported that the risk of contralateral breast cancer in patients from BRCA1 or BRCA2 positive families is elevated, little is known about contralateral breast cancer risk in patients from high risk families that tested negative for BRCA1/2 mutations. Methods: A retrospective, multicenter cohort study was performed from 1996 to 2011 and comprised 6,235 women with unilateral breast cancer from 6,230 high risk families that had tested positive for BRCA1 (n = 1,154) or BRCA2 (n = 575) mutations or tested negative (n = 4,501). Cumulative contralateral breast cancer risks were calculated using the Kaplan-Meier product-limit method and were compared between groups using the log-rank test. Cox regression analysis was applied to assess the impact of the age at first breast cancer and the familial history stratified by mutation status. Results: The cumulative risk of contralateral breast cancer 25 years after first breast cancer was 44.1\% (95\%CI, 37.6\% to 50.6\%) for patients from BRCA1 positive families, 33.5\% (95\%CI, 22.4\% to 44.7\%) for patients from BRCA2 positive families and 17.2\% (95\%CI, 14.5\% to 19.9\%) for patients from families that tested negative for BRCA1/2 mutations. Younger age at first breast cancer was associated with a higher risk of contralateral breast cancer. For women who had their first breast cancer before the age of 40 years, the cumulative risk of contralateral breast cancer after 25 years was 55.1\% for BRCA1, 38.4\% for BRCA2, and 28.4\% for patients from BRCA1/2 negative families. If the first breast cancer was diagnosed at the age of 50 or later, 25-year cumulative risks were 21.6\% for BRCA1, 15.5\% for BRCA2, and 12.9\% for BRCA1/2 negative families. Conclusions: Contralateral breast cancer risk in patients from high risk families that tested negative for BRCA1/2 mutations is similar to the risk in patients with sporadic breast cancer. Thus, the mutation status should guide decision making for contralateral mastectomy.},
  language  = {en}
}