TY  - JOUR
A1  - Grote, Jessica
A1  - Krysciak, Dagmar
A1  - Petersen, Katrin
A1  - Güllert, Simon
A1  - Schmeisser, Christel
A1  - Förstner, Konrad U.
A1  - Krishnan, Hari B.
A1  - Schwalbe, Harald
A1  - Kubatova, Nina
A1  - Streit, Wolfgang R.
T1  - The Absence of the N-acyl-homoserine-lactone Autoinducer Synthase Genes tral and ngrl Increases the Copy Number of the Symbiotic Plasmid in Sinorhizobium fredii NGR234
JF  - Frontiers in Microbiology
N2  - Plant-released flavonoids induce the transcription of symbiotic genes in rhizobia and one of the first bacterial responses is the synthesis of so called Nod factors. They are responsible for the initial root hair curling during onset of root nodule development. This signal exchange is believed to be essential for initiating the plant symbiosis with rhizobia affiliated with the Alphaproteobacteria. Here, we provide evidence that in the broad host range strain Sinorhizobium fredii NGR234 the complete lack of quorum sensing molecules results in an elevated copy number of its symbiotic plasmid (pNGR234a). This in turn triggers the expression of symbiotic genes and the production of Nod factors in the absence of plant signals. Therefore, increasing the copy number of specific plasmids could be a widespread mechanism of specialized bacterial populations to bridge gaps in signaling cascades.
KW  - Sinorhizobium fredii
KW  - plasmid copy number
KW  - plant symbioses
KW  - quorum sensing (QS)
KW  - RNA sequencing (RNA-Seq)
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-165185
VL  - 7
IS  - 1858
ER  - 
TY  - THES
A1  - Simon, Nina Monica
T1  - Molecular interactions of the malaria parasite Plasmodium falciparum during the sexual reproduction in the mosquito midgut
T1  - Molekulare Wechselwirkungen des Malariaparasiten Plasmodium falciparum während der sexuellen Fortpflanzung im Mitteldarm der Mücke
N2  - The sexual phase of Plasmodium falciparum begins with the differentiation of intraerythrocytic sexual stages, termed gametocytes, in the human host. Mature gametocytes circulate in the peripheral blood and are taken up by the mosquito during the blood meal. These stages are essential for the spread of the malaria disease and form gametes in the mosquito midgut within minutes. A highly conserved family of six secreted proteins has been identified in Plasmodium falciparum. They comprise multiple adhesive domains and are termed PfCCp1 through PfCCp5, and PfFNPA. It was revealed in this work that PfCCp multi-domain adhesion proteins form protein complexes in gametocytes and on the surface of newly emerged macrogametes by adhesion domain-mediated binding. Co-Immunoprecipitation assays with activated gametocyte lysates show interactions between PfCCp proteins and indicate surface association via Pfs230 and Pfs25. Pfs230 is connected with the plasma membrane of the parasite by its interaction partner Pfs48/45. This protein is linked to the plasma membrane by a GPI anchor and presumably retains the multi-protein complex on the surface of newly emerged macrogametes in the mosquito midgut. A WD40 domain containing protein was identified to be part of this protein complex. It might serve as platform for the assembly of the multi protein complex or mediate the interplay among proteins, as suggested from known functions of the WD40 domain repeats. During egress from the host erythrocyte, the emerging gametes become vulnerable to factors of the human complement, which is taken up with the blood meal. In this thesis it was found that the complement system is active for about one hour post feeding. Macrogametes defend against complement-mediated lysis by co-opting the human complement regulators Factor H and FHL-1 from the blood-meal. These serum proteins bind via its SCR domains 5-7 to the surface of macrogametes. Once bound, they trigger complement inactivation of the alternative pathway, which prevents induction of complement lysis on the surface of the malaria parasite. Antibodies against Factor H are able to impair the sexual development in vitro and are able to block transmission to the mosquito. Interaction studies on endogenous proteins and immobilized recombinant proteins revealed the PfGAP50 protein as binding partner of Factor H and FHL-1. This protein was hitherto described as a glideosome-associated protein in invasive parasite stages, but has not yet been characterized in gametes. First localization studies indicate a relocation of PfGAP50 from the inner membrane complex to the surface of macrogametes. Malaria still persists as one of the deadliest infectious diseases worldwide. Investigations on the essential transmissive stages, gametocytes and gametes of Plasmodium falciparum, stood in the background of research for a long time. This work deciphered details on protein interactions on the surface of the malaria parasite and provides first information about coactions between the parasite and the human complement in the mosquito midgut.
N2  - Die Sexualphase von Plasmodium falciparum beginnt mit der Ausbildung von intraerythrozytären Sexualstadien, sogenannten Gametozyten, im menschlichen Wirt. Reife Gametozyten zirkulieren im peripheren Blut und werden während der Blutmahlzeit von der Mücke aufgenommen. Dieses Parasitenstadium ist ausschlaggebend für die Verbreitung von Malaria und bildet im Mückendarm innerhalb von Minuten Gameten. In Plasmodium falciparum wurde eine hochkonservierte Familie bestehend aus sechs sekretierten Proteinen entdeckt. Diese bestehen aus verschiedenen Adhäsionsdomänen und werden PfCCp1 bis PfCCp5 und PfFNPA genannt. In dieser Arbeit wurde gezeigt, dass PfCCp Multiadhäsionsproteine Komplexe in Gametozyten und auf der Oberfläche von jungen Makrogameten mittels domänenvermittelter Bindungen bilden. Ko-Immunpräzipitationen mit Lysat aus aktivierten Gametozyten zeigten oberflächenvermittelte Interaktionen der PfCCp Proteine durch Pfs230 und Pfs25. Pfs230 ist mit seinen Interaktionspartner Pfs48/45 durch einen GPI-Anker mit der Plasmamembran des Parasiten verbunden. Der Multi-Proteinkomplex wird somit auf der Oberfläche von jungen weiblichen Gameten festgehalten. Zudem wurde in dem neu identifizierten Proteinkomplex ein Protein entschlüsselt welches WD40-Domänen aufweist. Bereits bekannte Funktionen von sich wiederholenden WD40-Domänen lassen vermuten, dass dieses Protein möglicher-weise als Plattform für den Zusammenbau des Proteinkomplexes dient oder das Wechselspiel zwischen Proteinen vermittelt. Während des Ausbruchs aus der Wirtszelle, dem Erythrozyten, werden Gameten angreifbar für Faktoren des humanen Komplements, welches mit der Blutmahlzeit in den Mückendarm aufgenommen wird. In dieser Arbeit wurde ermittelt, dass das Komplementsystem nach der Blutmahlzeit etwa eine Stunde lang im Mückendarm aktiv ist. Durch die Bindung der Regulatoren Faktor H und FHL-1 des menschlichen Komplementsystems aus der Blutmahlzeit, schützen sich Makrogameten gegen eine komplementvermittelte Lyse. Diese Serumproteine binden mittels ihrer SCR-Domänen 5-7 an die Oberfläche von Makrogameten und vermitteln damit die Inaktivierung des alternativen Komplementweges. Dadurch schützen sie sich vor der komplementinduzierten Lyse auf der Oberfläche des Parasiten. Antikörper gegen Faktor H vermindern die sexuelle Entwicklung in vitro und können die Weiterentwicklung des Erregers in der Mücke blockieren. Interaktionsstudien mit endogenen Proteinen und immoblilisierten rekombinanten Proteinen offenbarten PfGAP50 als Bindungspartner von Faktor H und FHL-1. PfGAP50 wurde bislang einem Motorkomplex zugeschrieben, welcher für die Parasitenbewegung von invasiven Stadien zuständig ist. Es wurde jedoch bis heute nicht in Gameten charakterisiert. Erste Lokalisationsstudien weisen auf eine Relokalisierung von PfGAP50 vom inneren Membrankomplex zur Oberfläche von Makrogameten hin. Malaria ist weiterhin eine der tödlichsten Infektionskrankheiten weltweit. Die Erforschung dieser für die Übertragung essentiellen Stadien, den Gametozyten und Gameten von Plasmodium falciparum, stand lange im Hintergrund der Forschung. Diese Arbeit entschlüsselt Details über Proteininteraktionen auf der Oberfläche des Malariaparasiten und beschreibt das Zusammenwirken des Parasiten mit dem menschlichen Komplementsystem im Darm der Mücke.
KW  - Plasmodium falciparum
KW  - Sexuelle Entwicklung
KW  - Malaria
KW  - Transmissionsblockierende Impfstoffe
KW  - Oberflächenproteine der Sexualstadien
KW  - Malaria
KW  - Gametozyt
KW  - humaner Faktor H
KW  - transmission blocking vaccine
KW  - sexual stage surface proteins
KW  - malaria
KW  - gametocyte
KW  - human factor H
Y1  - 2012
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-72403
ER  - 
TY  - JOUR
A1  - von Bohl, Andreas
A1  - Kuehn, Andrea
A1  - Simon, Nina
A1  - Nkwouano Ngongang, Vanesa
A1  - Spehr, Marc
A1  - Baumeister, Stefan
A1  - Przyborski, Jude M.
A1  - Fischer, Rainer
A1  - Pradel, Gabriele
T1  - A WD40-repeat protein unique to malaria parasites associates with adhesion protein complexes and is crucial for blood stage progeny
JF  - Malaria Journal
N2  - Background

During development in human erythrocytes, Plasmodium falciparum parasites display a remarkable number of adhesive proteins on their plasma membrane. In the invasive merozoites, these include members of the PfMSP1 and PfAMA1/RON complexes, which facilitate contact between merozoites and red blood cells. In gametocytes, sexual precursor cells mediating parasite transmission to the mosquito vector, plasma membrane-associated proteins primarily belong to the PfCCp and 6-cys families with roles in fertilization. This study describes a newly identified WD40-repeat protein unique to Plasmodium species that associates with adhesion protein complexes of both merozoites and gametocytes.

Methods

The WD40-repeat protein-like protein PfWLP1 was identified via co-immunoprecipitation assays followed by mass spectrometry and characterized using biochemical and immunohistochemistry methods. Reverse genetics were employed for functional analysis.

Results

PfWLP1 is expressed both in schizonts and gametocytes. In mature schizonts, the protein localizes underneath the merozoite micronemes and interacts with PfAMA1, while in gametocytes PfWLP1 primarily accumulates underneath the plasma membrane and associates with PfCCp1 and Pfs230. Reverse genetics failed to disrupt the pfwlp1 gene, while haemagglutinin-tagging was feasible, suggesting a crucial function for PfWLP1 during blood stage replication.

Conclusions

This is the first report on a plasmodial WD40-repeat protein associating with cell adhesion proteins. Since WD40 domains are known to mediate protein–protein contact by serving as a rigid scaffold for protein interactions, the presented data suggest that PfWLP1 supports the stability of adhesion protein complexes of the plasmodial blood stages.
KW  - PfCCp protein
KW  - Pfs230
KW  - PfAMA1
KW  - WD40
KW  - gametocyte
KW  - microneme
KW  - merozoite
KW  - plasmodium falciparum
KW  - malaria
Y1  - 2015
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-139728
VL  - 14
IS  - 435
ER  - 
TY  - JOUR
A1  - Antoniou, Antonis C.
A1  - Kuchenbaecker, Karoline B.
A1  - Soucy, Penny
A1  - Beesley, Jonathan
A1  - Chen, Xiaoqing
A1  - McGuffog, Lesley
A1  - Lee, Andrew
A1  - Barrowdale, Daniel
A1  - Healey, Sue
A1  - Sinilnikova, Olga M.
A1  - Caligo, Maria A.
A1  - Loman, Niklas
A1  - Harbst, Katja
A1  - Lindblom, Annika
A1  - Arver, Brita
A1  - Rosenquist, Richard
A1  - Karlsson, Per
A1  - Nathanson, Kate
A1  - Domchek, Susan
A1  - Rebbeck, Tim
A1  - Jakubowska, Anna
A1  - Lubinski, Jan
A1  - Jaworska, Katarzyna
A1  - Durda, Katarzyna
A1  - Zlowowcka-Perłowska, Elżbieta
A1  - Osorio, Ana
A1  - Durán, Mercedes
A1  - Andrés, Raquel
A1  - Benítez, Javier
A1  - Hamann, Ute
A1  - Hogervorst, Frans B.
A1  - van Os, Theo A.
A1  - Verhoef, Senno
A1  - Meijers-Heijboer, Hanne E. J.
A1  - Wijnen, Juul
A1  - Garcia, Encarna B. Gómez
A1  - Ligtenberg, Marjolijn J.
A1  - Kriege, Mieke
A1  - Collée, Margriet
A1  - Ausems, Margreet G. E. M.
A1  - Oosterwijk, Jan C.
A1  - Peock, Susan
A1  - Frost, Debra
A1  - Ellis, Steve D.
A1  - Platte, Radka
A1  - Fineberg, Elena
A1  - Evans, D. Gareth
A1  - Lalloo, Fiona
A1  - Jacobs, Chris
A1  - Eeles, Ros
A1  - Adlard, Julian
A1  - Davidson, Rosemarie
A1  - Cole, Trevor
A1  - Cook, Jackie
A1  - Paterson, Joan
A1  - Douglas, Fiona
A1  - Brewer, Carole
A1  - Hodgson, Shirley
A1  - Morrison, Patrick J.
A1  - Walker, Lisa
A1  - Rogers, Mark T.
A1  - Donaldson, Alan
A1  - Dorkins, Huw
A1  - Godwin, Andrew K.
A1  - Bove, Betsy
A1  - Stoppa-Lyonnet, Dominique
A1  - Houdayer, Claude
A1  - Buecher, Bruno
A1  - de Pauw, Antoine
A1  - Mazoyer, Sylvie
A1  - Calender, Alain
A1  - Léoné, Mélanie
A1  - Bressac-de Paillerets, Brigitte
A1  - Caron, Olivier
A1  - Sobol, Hagay
A1  - Frenay, Marc
A1  - Prieur, Fabienne
A1  - Ferrer, Sandra Fert
A1  - Mortemousque, Isabelle
A1  - Buys, Saundra
A1  - Daly, Mary
A1  - Miron, Alexander
A1  - Terry, Mary Beth
A1  - Hopper, John L.
A1  - John, Esther M.
A1  - Southey, Melissa
A1  - Goldgar, David
A1  - Singer, Christian F.
A1  - Fink-Retter, Anneliese
A1  - Muy-Kheng, Tea
A1  - Geschwantler Kaulich, Daphne
A1  - Hansen, Thomas V. O.
A1  - Nielsen, Finn C.
A1  - Barkardottir, Rosa B.
A1  - Gaudet, Mia
A1  - Kirchhoff, Tomas
A1  - Joseph, Vijai
A1  - Dutra-Clarke, Ana
A1  - Offit, Kenneth
A1  - Piedmonte, Marion
A1  - Kirk, Judy
A1  - Cohn, David
A1  - Hurteau, Jean
A1  - Byron, John
A1  - Fiorica, James
A1  - Toland, Amanda E.
A1  - Montagna, Marco
A1  - Oliani, Cristina
A1  - Imyanitov, Evgeny
A1  - Isaacs, Claudine
A1  - Tihomirova, Laima
A1  - Blanco, Ignacio
A1  - Lazaro, Conxi
A1  - Teulé, Alex
A1  - Del Valle, J.
A1  - Gayther, Simon A.
A1  - Odunsi, Kunle
A1  - Gross, Jenny
A1  - Karlan, Beth Y.
A1  - Olah, Edith
A1  - Teo, Soo-Hwang
A1  - Ganz, Patricia A.
A1  - Beattie, Mary S.
A1  - Dorfling, Cecelia M.
A1  - Jansen van Rensburg, Elizabeth
A1  - Diez, Orland
A1  - Kwong, Ava
A1  - Schmutzler, Rita K.
A1  - Wappenschmidt, Barbara
A1  - Engel, Christoph
A1  - Meindl, Alfons
A1  - Ditsch, Nina
A1  - Arnold, Norbert
A1  - Heidemann, Simone
A1  - Niederacher, Dieter
A1  - Preisler-Adams, Sabine
A1  - Gadzicki, Dorothea
A1  - Varon-Mateeva, Raymonda
A1  - Deissler, Helmut
A1  - Gehrig, Andrea
A1  - Sutter, Christian
A1  - Kast, Karin
A1  - Fiebig, Britta
A1  - Schäfer, Dieter
A1  - Caldes, Trinidad
A1  - de la Hoya, Miguel
A1  - Nevanlinna, Heli
A1  - Muranen, Taru A.
A1  - Lespérance, Bernard
A1  - Spurdle, Amanda B.
A1  - Neuhausen, Susan L.
A1  - Ding, Yuan C.
A1  - Wang, Xianshu
A1  - Fredericksen, Zachary
A1  - Pankratz, Vernon S.
A1  - Lindor, Noralane M.
A1  - Peterlongo, Paulo
A1  - Manoukian, Siranoush
A1  - Peissel, Bernard
A1  - Zaffaroni, Daniela
A1  - Bonanni, Bernardo
A1  - Bernard, Loris
A1  - Dolcetti, Riccardo
A1  - Papi, Laura
A1  - Ottini, Laura
A1  - Radice, Paolo
A1  - Greene, Mark H.
A1  - Loud, Jennifer T.
A1  - Andrulis, Irene L.
A1  - Ozcelik, Hilmi
A1  - Mulligan, Anna Marie
A1  - Glendon, Gord
A1  - Thomassen, Mads
A1  - Gerdes, Anne-Marie
A1  - Jensen, Uffe B.
A1  - Skytte, Anne-Bine
A1  - Kruse, Torben A.
A1  - Chenevix-Trench, Georgia
A1  - Couch, Fergus J.
A1  - Simard, Jacques
A1  - Easton, Douglas F.
T1  - Common variants at 12p11, 12q24, 9p21, 9q31.2 and in ZNF365 are associated with breast cancer risk for BRCA1 and/or BRCA2 mutation carriers
JF  - Breast Cancer Research
N2  - Introduction: Several common alleles have been shown to be associated with breast and/or ovarian cancer risk for BRCA1 and BRCA2 mutation carriers. Recent genome-wide association studies of breast cancer have identified eight additional breast cancer susceptibility loci: rs1011970 (9p21, CDKN2A/B), rs10995190 (ZNF365), rs704010 (ZMIZ1), rs2380205 (10p15), rs614367 (11q13), rs1292011 (12q24), rs10771399 (12p11 near PTHLH) and rs865686 (9q31.2). 
Methods: To evaluate whether these single nucleotide polymorphisms (SNPs) are associated with breast cancer risk for BRCA1 and BRCA2 carriers, we genotyped these SNPs in 12,599 BRCA1 and 7,132 BRCA2 mutation carriers and analysed the associations with breast cancer risk within a retrospective likelihood framework. 
Results: Only SNP rs10771399 near PTHLH was associated with breast cancer risk for BRCA1 mutation carriers (per-allele hazard ratio (HR) = 0.87, 95% CI: 0.81 to 0.94, P-trend = 3 x 10\(^{-4}\)). The association was restricted to mutations proven or predicted to lead to absence of protein expression (HR = 0.82, 95% CI: 0.74 to 0.90, P-trend = 3.1 x 10\(^{-5}\), P-difference = 0.03). Four SNPs were associated with the risk of breast cancer for BRCA2 mutation carriers: rs10995190, P-trend = 0.015; rs1011970, P-trend = 0.048; rs865686, 2df P = 0.007; rs1292011 2df P = 0.03. rs10771399 (PTHLH) was predominantly associated with estrogen receptor (ER)-negative breast cancer for BRCA1 mutation carriers (HR = 0.81, 95% CI: 0.74 to 0.90, P-trend = 4 x 10\(^{-5}\)) and there was marginal evidence of association with ER- negative breast cancer for BRCA2 mutation carriers (HR = 0.78, 95% CI: 0.62 to 1.00, P-trend = 0.049). 
Conclusions: The present findings, in combination with previously identified modifiers of risk, will ultimately lead to more accurate risk prediction and an improved understanding of the disease etiology in BRCA1 and BRCA2 mutation carriers.
KW  - investigators
KW  - genetic modifiers
KW  - mammographic density
KW  - susceptibility loci
KW  - ovarian cancer
KW  - hormone-related protein
KW  - genome-wide association
KW  - tumor subtypes
KW  - alleles
KW  - consortium
Y1  - 2012
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-130449
VL  - 14
IS  - R33
ER  - 
TY  - JOUR
A1  - Hudson, Lawrence N.
A1  - Newbold, Tim
A1  - Contu, Sara
A1  - Hill, Samantha L. L.
A1  - Lysenko, Igor
A1  - De Palma, Adriana
A1  - Phillips, Helen R. P.
A1  - Senior, Rebecca A.
A1  - Bennett, Dominic J.
A1  - Booth, Hollie
A1  - Choimes, Argyrios
A1  - Correia, David L. P.
A1  - Day, Julie
A1  - Echeverria-Londono, Susy
A1  - Garon, Morgan
A1  - Harrison, Michelle L. K.
A1  - Ingram, Daniel J.
A1  - Jung, Martin
A1  - Kemp, Victoria
A1  - Kirkpatrick, Lucinda
A1  - Martin, Callum D.
A1  - Pan, Yuan
A1  - White, Hannah J.
A1  - Aben, Job
A1  - Abrahamczyk, Stefan
A1  - Adum, Gilbert B.
A1  - Aguilar-Barquero, Virginia
A1  - Aizen, Marcelo
A1  - Ancrenaz, Marc
A1  - Arbelaez-Cortes, Enrique
A1  - Armbrecht, Inge
A1  - Azhar, Badrul
A1  - Azpiroz, Adrian B.
A1  - Baeten, Lander
A1  - Báldi, András
A1  - Banks, John E.
A1  - Barlow, Jos
A1  - Batáry, Péter
A1  - Bates, Adam J.
A1  - Bayne, Erin M.
A1  - Beja, Pedro
A1  - Berg, Ake
A1  - Berry, Nicholas J.
A1  - Bicknell, Jake E.
A1  - Bihn, Jochen H.
A1  - Böhning-Gaese, Katrin
A1  - Boekhout, Teun
A1  - Boutin, Celine
A1  - Bouyer, Jeremy
A1  - Brearley, Francis Q.
A1  - Brito, Isabel
A1  - Brunet, Jörg
A1  - Buczkowski, Grzegorz
A1  - Buscardo, Erika
A1  - Cabra-Garcia, Jimmy
A1  - Calvino-Cancela, Maria
A1  - Cameron, Sydney A.
A1  - Cancello, Eliana M.
A1  - Carrijo, Tiago F.
A1  - Carvalho, Anelena L.
A1  - Castro, Helena
A1  - Castro-Luna, Alejandro A.
A1  - Cerda, Rolando
A1  - Cerezo, Alexis
A1  - Chauvat, Matthieu
A1  - Clarke, Frank M.
A1  - Cleary, Daniel F. R.
A1  - Connop, Stuart P.
A1  - D'Aniello, Biagio
A1  - da Silva, Pedro Giovani
A1  - Darvill, Ben
A1  - Dauber, Jens
A1  - Dejean, Alain
A1  - Diekötter, Tim
A1  - Dominguez-Haydar, Yamileth
A1  - Dormann, Carsten F.
A1  - Dumont, Bertrand
A1  - Dures, Simon G.
A1  - Dynesius, Mats
A1  - Edenius, Lars
A1  - Elek, Zoltán
A1  - Entling, Martin H.
A1  - Farwig, Nina
A1  - Fayle, Tom M.
A1  - Felicioli, Antonio
A1  - Felton, Annika M.
A1  - Ficetola, Gentile F.
A1  - Filgueiras, Bruno K. C.
A1  - Fonte, Steve J.
A1  - Fraser, Lauchlan H.
A1  - Fukuda, Daisuke
A1  - Furlani, Dario
A1  - Ganzhorn, Jörg U.
A1  - Garden, Jenni G.
A1  - Gheler-Costa, Carla
A1  - Giordani, Paolo
A1  - Giordano, Simonetta
A1  - Gottschalk, Marco S.
A1  - Goulson, Dave
A1  - Gove, Aaron D.
A1  - Grogan, James
A1  - Hanley, Mick E.
A1  - Hanson, Thor
A1  - Hashim, Nor R.
A1  - Hawes, Joseph E.
A1  - Hébert, Christian
A1  - Helden, Alvin J.
A1  - Henden, John-André
A1  - Hernández, Lionel
A1  - Herzog, Felix
A1  - Higuera-Diaz, Diego
A1  - Hilje, Branko
A1  - Horgan, Finbarr G.
A1  - Horváth, Roland
A1  - Hylander, Kristoffer
A1  - Horváth, Roland
A1  - Isaacs-Cubides, Paola
A1  - Ishitani, Mashiro
A1  - Jacobs, Carmen T.
A1  - Jaramillo, Victor J.
A1  - Jauker, Birgit
A1  - Jonsell, Matts
A1  - Jung, Thomas S.
A1  - Kapoor, Vena
A1  - Kati, Vassiliki
A1  - Katovai, Eric
A1  - Kessler, Michael
A1  - Knop, Eva
A1  - Kolb, Annette
A1  - Körösi, Àdám
A1  - Lachat, Thibault
A1  - Lantschner, Victoria
A1  - Le Féon, Violette
A1  - LeBuhn, Gretchen
A1  - Légaré, Jean-Philippe
A1  - Letcher, Susan G.
A1  - Littlewood, Nick A.
A1  - López-Quintero, Carlos A.
A1  - Louhaichi, Mounir
A1  - Lövei, Gabor L.
A1  - Lucas-Borja, Manuel Esteban
A1  - Luja, Victor H.
A1  - Maeto, Kaoru
A1  - Magura, Tibor
A1  - Mallari, Neil Aldrin
A1  - Marin-Spiotta, Erika
A1  - Marhall, E. J. P.
A1  - Martínez, Eliana
A1  - Mayfield, Margaret M.
A1  - Mikusinski, Gregorz
A1  - Milder, Jeffery C.
A1  - Miller, James R.
A1  - Morales, Carolina L.
A1  - Muchane, Mary N.
A1  - Muchane, Muchai
A1  - Naidoo, Robin
A1  - Nakamura, Akihiro
A1  - Naoe, Shoji
A1  - Nates-Parra, Guiomar
A1  - Navarerete Gutierrez, Dario A.
A1  - Neuschulz, Eike L.
A1  - Noreika, Norbertas
A1  - Norfolk, Olivia
A1  - Noriega, Jorge Ari
A1  - Nöske, Nicole M.
A1  - O'Dea, Niall
A1  - Oduro, William
A1  - Ofori-Boateng, Caleb
A1  - Oke, Chris O.
A1  - Osgathorpe, Lynne M.
A1  - Paritsis, Juan
A1  - Parrah, Alejandro
A1  - Pelegrin, Nicolás
A1  - Peres, Carlos A.
A1  - Persson, Anna S.
A1  - Petanidou, Theodora
A1  - Phalan, Ben
A1  - Philips, T. Keith
A1  - Poveda, Katja
A1  - Power, Eileen F.
A1  - Presley, Steven J.
A1  - Proença, Vânia
A1  - Quaranta, Marino
A1  - Quintero, Carolina
A1  - Redpath-Downing, Nicola A.
A1  - Reid, J. Leighton
A1  - Reis, Yana T.
A1  - Ribeiro, Danilo B.
A1  - Richardson, Barbara A.
A1  - Richardson, Michael J.
A1  - Robles, Carolina A.
A1  - Römbke, Jörg
A1  - Romero-Duque, Luz Piedad
A1  - Rosselli, Loreta
A1  - Rossiter, Stephen J.
A1  - Roulston, T'ai H.
A1  - Rousseau, Laurent
A1  - Sadler, Jonathan P.
A1  - Sáfián, Szbolcs
A1  - Saldaña-Vásquez, Romeo A.
A1  - Samnegård, Ulrika
A1  - Schüepp, Christof
A1  - Schweiger, Oliver
A1  - Sedlock, Jodi L.
A1  - Shahabuddin, Ghazala
A1  - Sheil, Douglas
A1  - Silva, Fernando A. B.
A1  - Slade, Eleanor
A1  - Smith-Pardo, Allan H.
A1  - Sodhi, Navjot S.
A1  - Somarriba, Eduardo J.
A1  - Sosa, Ramón A.
A1  - Stout, Jane C.
A1  - Struebig, Matthew J.
A1  - Sung, Yik-Hei
A1  - Threlfall, Caragh G.
A1  - Tonietto, Rebecca
A1  - Tóthmérész, Béla
A1  - Tscharntke, Teja
A1  - Turner, Edgar C.
A1  - Tylianakis, Jason M.
A1  - Vanbergen, Adam J.
A1  - Vassilev, Kiril
A1  - Verboven, Hans A. F.
A1  - Vergara, Carlos H.
A1  - Vergara, Pablo M.
A1  - Verhulst, Jort
A1  - Walker, Tony R.
A1  - Wang, Yanping
A1  - Watling, James I.
A1  - Wells, Konstans
A1  - Williams, Christopher D.
A1  - Willig, Michael R.
A1  - Woinarski, John C. Z.
A1  - Wolf, Jan H. D.
A1  - Woodcock, Ben A.
A1  - Yu, Douglas W.
A1  - Zailsev, Andreys
A1  - Collen, Ben
A1  - Ewers, Rob M.
A1  - Mace, Georgina M.
A1  - Purves, Drew W.
A1  - Scharlemann, Jörn P. W.
A1  - Pervis, Andy
T1  - The PREDICTS database: a global database of how local terrestrial biodiversity responds to human impacts
JF  - Ecology and Evolution
N2  - 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.
KW  - urban-rural gradient
KW  - instensively managed farmland
KW  - Mexican coffee plantations
KW  - Bombus Spp. Hymenoptera
KW  - bumblebee nest density
KW  - data sharing
KW  - land use
KW  - habitat destruction
KW  - global change
KW  - land-use change
KW  - plant community composition
KW  - Northeastern Costa Rica
KW  - dung beetle coleoptera
KW  - bird species richness
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-114425
VL  - 4
IS  - 24
ER  - 
TY  - JOUR
A1  - Scognamiglio, Roberta
A1  - Cabezas-Wallscheid, Nina
A1  - Thier, Marc Christian
A1  - Altamura, Sandro
A1  - Reyes, Alejandro
A1  - Prendergast, Áine M.
A1  - Baumgärtner, Daniel
A1  - Carnevalli, Larissa S.
A1  - Atzberger, Ann
A1  - Haas, Simon
A1  - von Paleske, Lisa
A1  - Boroviak, Thorsten
A1  - Wörsdörfer, Philipp
A1  - Essers, Marieke A. G.
A1  - Kloz, Ulrich
A1  - Eisenman, Robert N.
A1  - Edenhofer, Frank
A1  - Bertone, Paul
A1  - Huber, Wolfgang
A1  - van der Hoeven, Franciscus
A1  - Smith, Austin
A1  - Trumpp, Andreas
T1  - Myc depletion induces a pluripotent dormant state mimicking diapause
JF  - Cell
N2  - Mouse embryonic stem cells (ESCs) are maintained in a naive ground state of pluripotency in the presence of MEK and GSK3 inhibitors. Here, we show that ground-state ESCs express low Myc levels. Deletion of both c-myc and N-myc (dKO) or pharmacological inhibition of Myc activity strongly decreases transcription, splicing, and protein synthesis, leading to proliferation arrest. This process is reversible and occurs without affecting pluripotency, suggesting that Myc-depleted stem cells enter a state of dormancy similar to embryonic diapause. Indeed, c-Myc is depleted in diapaused blastocysts, and the differential expression signatures of dKO ESCs and diapaused epiblasts are remarkably similar. Following Myc inhibition, pre-implantation blastocysts enter biosynthetic dormancy but can progress through their normal developmental program after transfer into pseudo-pregnant recipients. Our study shows that Myc controls the biosynthetic machinery of stem cells without affecting their potency, thus regulating their entry and exit from the dormant state.
KW  - hematopoietic stem cells
KW  - leukemia inhibitory factor
KW  - c-Myc
KW  - N-Myc
KW  - gene expression
KW  - embryonic stem cells
KW  - self-renewal
KW  - protein synthesis
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-190868
VL  - 164
IS  - 4
ER  -