TY - JOUR A1 - Stölzel, F. A1 - Mohr, B. A1 - Kramer, M. A1 - Oelschlägel, U. A1 - Bochtler, T. A1 - Berdel, W. E. A1 - Kaufmann, M. A1 - Baldus, C. D. A1 - Schäfer-Eckart, K. A1 - Stuhlmann, R. A1 - Einsele, H. A1 - Krause, S. W. A1 - Serve, H. A1 - Hänel, M. A1 - Herbst, R. A1 - Neubauer, A. A1 - Sohlbach, K. A1 - Mayer, J. A1 - Middeke, J. M. A1 - Platzbecker, U. A1 - Schaich, M. A1 - Krämer, A. A1 - Röllig, C. A1 - Schetelig, J. A1 - Bornhäuser, M. A1 - Ehninger, G. T1 - Karyotype complexity and prognosis in acute myeloid leukemia JF - Blood Cancer Journal N2 - A complex aberrant karyotype consisting of multiple unrelated cytogenetic abnormalities is associated with poor prognosis in patients with acute myeloid leukemia (AML). The European Leukemia Net classification and the UK Medical Research Council recommendation provide prognostic categories that differ in the definition of unbalanced aberrations as well as the number of single aberrations. The aim of this study on 3526 AML patients was to redefine and validate a cutoff for karyotype complexity in AML with regard to adverse prognosis. Our study demonstrated that (1) patients with a pure hyperdiploid karyotype have an adverse risk irrespective of the number of chromosomal gains, (2) patients with translocation t(9;11)(p21∼22;q23) have an intermediate risk independent of the number of additional aberrations, (3) patients with 4 abnormalities have an adverse risk per se and (4) patients with three aberrations in the absence of abnormalities of strong influence (hyperdiploid karyotype, t(9;11)(p21∼22;q23), CBF-AML, unique adverse-risk aberrations) have borderline intermediate/adverse risk with a reduced overall survival compared with patients with a normal karyotype. KW - Cancer genetics KW - Genetics research Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-164530 VL - 6 ER - TY - JOUR A1 - Röllig, C. A1 - Kramer, M. A1 - Gabrecht, M. A1 - Hänel, M. A1 - Herbst, R. A1 - Kaiser, U. A1 - Schmitz, N. A1 - Kullmer, J. A1 - Fetscher, S. A1 - Link, H. A1 - Mantovani-Löffler, L. A1 - Krümpelmann, U. A1 - Neuhaus, T. A1 - Heits, F. A1 - Einsele, H. A1 - Ritter, B. A1 - Bornhäuser, M. A1 - Schetelig, J. A1 - Thiede, C. A1 - Mohr, B. A1 - Schaich, M. A1 - Platzbecker, U. A1 - Schäfer-Eckart, K. A1 - Krämer, A. A1 - Berdel, W. E. A1 - Serve, H. A1 - Ehninger, G. A1 - Schuler, U. S. T1 - Intermediate-dose cytarabine plus mitoxantrone versus standard-dose cytarabine plus daunorubicin for acute myeloid leukemia in elderly patients JF - Annals of Oncology N2 - Background: The combination of intermediate-dose cytarabine plus mitoxantrone (IMA) can induce high complete remission rates with acceptable toxicity in elderly patients with acute myeloid leukemia (AML). We present the final results of a randomized-controlled trial comparing IMA with the standard 7+3 induction regimen consisting of continuous infusion cytarabine plus daunorubicin (DA). Patients and methods: Patients with newly diagnosed AML>60 years were randomized to receive either intermediate-dose cytarabine (1000 mg/m(2) twice daily on days 1, 3, 5, 7) plus mitoxantrone (10 mg/m(2) days 1-3) (IMA) or standard induction therapy with cytarabine (100 mg/m(2) continuously days 1-7) plus daunorubicin (45 mg/m(2) days 3-5) (DA). Patients in complete remission after DA received intermediate-dose cytarabine plus amsacrine as consolidation treatment, whereas patients after IMA were consolidated with standard-dose cytarabine plus mitoxantrone. Results: Between February 2005 and October 2009, 485 patients were randomized; 241 for treatment arm DA and 244 for IMA; 76% of patients were >65 years. The complete response rate after DA was 39% [95% confidence interval (95% CI): 33-45] versus 55% (95% CI: 49-61) after IMA (odds ratio 1.89, P = 0.001). The 6-week early-death rate was 14% in both arms. Relapse-free survival curves were superimposable in the first year, but separated afterwards, resulting in 3-year relapse-free survival rates of 29% versus 14% in the DA versus IMA arms, respectively (P = 0.042). The median overall survival was 10 months in both arms (P = 0.513). Conclusion: The dose escalation of cytarabine in induction therapy lead to improved remission rates in the elderly AML patients. This did not translate into a survival advantage, most likely due to differences in consolidation treatment. Thus, effective consolidation strategies need to be further explored. In combination with an effective consolidation strategy, the use of intermediate-dose cytarabine in induction may improve curative treatment for elderly AML patients. KW - acute myeloid leukemia KW - cytarabine dose KW - elderly Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226473 VL - 29 IS - 4 ER - TY - JOUR A1 - van Koolwijk, Leonieke M. E. A1 - Ramdas, Wishal D. A1 - Ikram, M. Kamran A1 - Jansonius, Nomdo M. A1 - Pasutto, Francesca A1 - Hys, Pirro G. A1 - Macgregor, Stuart A1 - Janssen, Sarah F. A1 - Hewitt, Alex W. A1 - Viswanathan, Ananth C. A1 - ten Brink, Jacoline B. A1 - Hosseini, S. Mohsen A1 - Amin, Najaf A1 - Despriet, Dominiek D. G. A1 - Willemse-Assink, Jacqueline J. M. A1 - Kramer, Rogier A1 - Rivadeneira, Fernando A1 - Struchalin, Maksim A1 - Aulchenko, Yurii S. A1 - Weisschuh, Nicole A1 - Zenkel, Matthias A1 - Mardin, Christian Y. A1 - Gramer, Eugen A1 - Welge-Lüssen, Ulrich A1 - Montgomery, Grant W. A1 - Carbonaro, Francis A1 - Young, Terri L. A1 - Bellenguez, Céline A1 - McGuffin, Peter A1 - Foster, Paul J. A1 - Topouzis, Fotis A1 - Mitchell, Paul A1 - Wang, Jie Jin A1 - Wong, Tien Y. A1 - Czudowska, Monika A. A1 - Hofman, Albert A1 - Uitterlinden, Andre G. A1 - Wolfs, Roger C. W. A1 - de Jong, Paulus T. V. M. A1 - Oostra, Ben A. A1 - Paterson, Andrew D. A1 - Mackey, David A. A1 - Bergen, Arthur A. B. A1 - Reis, Andre A1 - Hammond, Christopher J. A1 - Vingerling, Johannes R. A1 - Lemij, Hans G. A1 - Klaver, Caroline C. W. A1 - van Duijn, Cornelia M. T1 - Common Genetic Determinants of Intraocular Pressure and Primary Open-Angle Glaucoma JF - PLoS Genetics N2 - Intraocular pressure (IOP) is a highly heritable risk factor for primary open-angle glaucoma and is the only target for current glaucoma therapy. The genetic factors which determine IOP are largely unknown. We performed a genome-wide association study for IOP in 11,972 participants from 4 independent population-based studies in The Netherlands. We replicated our findings in 7,482 participants from 4 additional cohorts from the UK, Australia, Canada, and the Wellcome Trust Case-Control Consortium 2/Blue Mountains Eye Study. IOP was significantly associated with rs11656696, located in GAS7 at 17p13.1 (p = 1.4 x 10\(^{-8}\)), and with rs7555523, located in TMCO1 at 1q24.1 (p = 1.6 x 10\(^{-8}\)). In a meta-analysis of 4 case-control studies (total N = 1,432 glaucoma cases), both variants also showed evidence for association with glaucoma (p = 2.4 x 10\(^{-2}\) for rs11656696 and p = 9.1 x 10\(^{-4}\) for rs7555523). GAS7 and TMCO1 are highly expressed in the ciliary body and trabecular meshwork as well as in the lamina cribrosa, optic nerve, and retina. Both genes functionally interact with known glaucoma disease genes. These data suggest that we have identified two clinically relevant genes involved in IOP regulation. KW - expression KW - goldmann applanation tonometer KW - central corneal thickness KW - genome-wide scan KW - beaver-dam eye KW - to-disc ratio KW - onset KW - association KW - identification KW - population Y1 - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-131378 VL - 8 IS - 5 ER - TY - JOUR A1 - Carsten A., Böger A1 - Gorski, Mathias A1 - Li, Man A1 - Hoffmann, Michael M. A1 - Huang, Chunmei A1 - Yang, Qiong A1 - Teumer, Alexander A1 - Krane, Vera A1 - O'Seaghdha, Conall M. A1 - Kutalik, Zoltán A1 - Wichmann, H.-Erich A1 - Haak, Thomas A1 - Boes, Eva A1 - Coassin, Stefan A1 - Coresh, Josef A1 - Kollerits, Barbara A1 - Haun, Margot A1 - Paulweber, Bernhard A1 - Köttgen, Anna A1 - Li, Guo A1 - Shlipak, Michael G. A1 - Powe, Neil A1 - Hwang, Shih-Jen A1 - Dehghan, Abbas A1 - Rivadeneira, Fernando A1 - Uitterlinden, André A1 - Hofman, Albert A1 - Beckmann, Jacques S. A1 - Krämer, Bernhard K. A1 - Witteman, Jacqueline A1 - Bochud, Murielle A1 - Siscovick, David A1 - Rettig, Rainer A1 - Kronenberg, Florian A1 - Wanner, Christoph A1 - Thadhani, Ravi I. A1 - Heid, Iris M. A1 - Fox, Caroline S. A1 - Kao, W.H. T1 - Association of eGFR-Related Loci Identified by GWAS with Incident CKD and ESRD JF - PLoS Genetics N2 - Family studies suggest a genetic component to the etiology of chronic kidney disease (CKD) and end stage renal disease (ESRD). Previously, we identified 16 loci for eGFR in genome-wide association studies, but the associations of these single nucleotide polymorphisms (SNPs) for incident CKD or ESRD are unknown. We thus investigated the association of these loci with incident CKD in 26,308 individuals of European ancestry free of CKD at baseline drawn from eight population-based cohorts followed for a median of 7.2 years (including 2,122 incident CKD cases defined as eGFR < 60ml/min/1.73m(2) at follow-up) and with ESRD in four case-control studies in subjects of European ancestry (3,775 cases, 4,577 controls). SNPs at 11 of the 16 loci (UMOD, PRKAG2, ANXA9, DAB2, SHROOM3, DACH1, STC1, SLC34A1, ALMS1/NAT8, UBE2Q2, and GCKR) were associated with incident CKD; p-values ranged from p = 4.1e-9 in UMOD to p = 0.03 in GCKR. After adjusting for baseline eGFR, six of these loci remained significantly associated with incident CKD (UMOD, PRKAG2, ANXA9, DAB2, DACH1, and STC1). SNPs in UMOD (OR = 0.92, p = 0.04) and GCKR (OR = 0.93, p = 0.03) were nominally associated with ESRD. In summary, the majority of eGFR-related loci are either associated or show a strong trend towards association with incident CKD, but have modest associations with ESRD in individuals of European descent. Additional work is required to characterize the association of genetic determinants of CKD and ESRD at different stages of disease progression. KW - Chronic Kidney-disease KW - Stage renal-disease KW - Glomerular-filtration-rate KW - Diabetic-nephropathy KW - General-population KW - African-americans KW - Risk KW - Progression KW - Mortality KW - Variants Y1 - 2011 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-133758 VL - 7 IS - 9 ER - TY - JOUR A1 - Silvestri, Valentina A1 - Barrowdale, Daniel A1 - Mulligan, Anna Marie A1 - Neuhausen, Susan L. A1 - Fox, Stephen A1 - Karlan, Beth Y. A1 - Mitchell, Gillian A1 - James, Paul A1 - Thull, Darcy L. A1 - Zorn, Kristin K. A1 - Carter, Natalie J. A1 - Nathanson, Katherine L. A1 - Domchek, Susan M. A1 - Rebbeck, Timothy R. A1 - Ramus, Susan J. A1 - Nussbaum, Robert L. A1 - Olopade, Olufunmilayo I. A1 - Rantala, Johanna A1 - Yoon, Sook-Yee A1 - Caligo, Maria A. A1 - Spugnesi, Laura A1 - Bojesen, Anders A1 - Pedersen, Inge Sokilde A1 - Thomassen, Mads A1 - Jensen, Uffe Birk A1 - Toland, Amanda Ewart A1 - Senter, Leigha A1 - Andrulis, Irene L. A1 - Glendon, Gord A1 - Hulick, Peter J. A1 - Imyanitov, Evgeny N. A1 - Greene, Mark H. A1 - Mai, Phuong L. A1 - Singer, Christian F. A1 - Rappaport-Fuerhauser, Christine A1 - Kramer, Gero A1 - Vijai, Joseph A1 - Offit, Kenneth A1 - Robson, Mark A1 - Lincoln, Anne A1 - Jacobs, Lauren A1 - Machackova, Eva A1 - Foretova, Lenka A1 - Navratilova, Marie A1 - Vasickova, Petra A1 - Couch, Fergus J. A1 - Hallberg, Emily A1 - Ruddy, Kathryn J. A1 - Sharma, Priyanka A1 - Kim, Sung-Won A1 - Teixeira, Manuel R. A1 - Pinto, Pedro A1 - Montagna, Marco A1 - Matricardi, Laura A1 - Arason, Adalgeir A1 - Johannsson, Oskar Th A1 - Barkardottir, Rosa B. A1 - Jakubowska, Anna A1 - Lubinski, Jan A1 - Izquierdo, Angel A1 - Pujana, Miguel Angel A1 - Balmaña, Judith A1 - Diez, Orland A1 - Ivady, Gabriella A1 - Papp, Janos A1 - Olah, Edith A1 - Kwong, Ava A1 - Nevanlinna, Heli A1 - Aittomäki, Kristiina A1 - Segura, Pedro Perez A1 - Caldes, Trinidad A1 - Van Maerken, Tom A1 - Poppe, Bruce A1 - Claes, Kathleen B. M. A1 - Isaacs, Claudine A1 - Elan, Camille A1 - Lasset, Christine A1 - Stoppa-Lyonnet, Dominique A1 - Barjhoux, Laure A1 - Belotti, Muriel A1 - Meindl, Alfons A1 - Gehrig, Andrea A1 - Sutter, Christian A1 - Engel, Christoph A1 - Niederacher, Dieter A1 - Steinemann, Doris A1 - Hahnen, Eric A1 - Kast, Karin A1 - Arnold, Norbert A1 - Varon-Mateeva, Raymonda A1 - Wand, Dorothea A1 - Godwin, Andrew K. A1 - Evans, D. Gareth A1 - Frost, Debra A1 - Perkins, Jo A1 - Adlard, Julian A1 - Izatt, Louise A1 - Platte, Radka A1 - Eeles, Ros A1 - Ellis, Steve A1 - Hamann, Ute A1 - Garber, Judy A1 - Fostira, Florentia A1 - Fountzilas, George A1 - Pasini, Barbara A1 - Giannini, Giuseppe A1 - Rizzolo, Piera A1 - Russo, Antonio A1 - Cortesi, Laura A1 - Papi, Laura A1 - Varesco, Liliana A1 - Palli, Domenico A1 - Zanna, Ines A1 - Savarese, Antonella A1 - Radice, Paolo A1 - Manoukian, Siranoush A1 - Peissel, Bernard A1 - Barile, Monica A1 - Bonanni, Bernardo A1 - Viel, Alessandra A1 - Pensotti, Valeria A1 - Tommasi, Stefania A1 - Peterlongo, Paolo A1 - Weitzel, Jeffrey N. A1 - Osorio, Ana A1 - Benitez, Javier A1 - McGuffog, Lesley A1 - Healey, Sue A1 - Gerdes, Anne-Marie A1 - Ejlertsen, Bent A1 - Hansen, Thomas V. O. A1 - Steele, Linda A1 - Ding, Yuan Chun A1 - Tung, Nadine A1 - Janavicius, Ramunas A1 - Goldgar, David E. A1 - Buys, Saundra S. A1 - Daly, Mary B. A1 - Bane, Anita A1 - Terry, Mary Beth A1 - John, Esther M. A1 - Southey, Melissa A1 - Easton, Douglas F. A1 - Chenevix-Trench, Georgia A1 - Antoniou, Antonis C. A1 - Ottini, Laura T1 - Male breast cancer in BRCA1 and BRCA2 mutation carriers: pathology data from the Consortium of Investigators of Modifiers of BRCA1/2 JF - Breast Cancer Research N2 - Background BRCA1 and, more commonly, BRCA2 mutations are associated with increased risk of male breast cancer (MBC). However, only a paucity of data exists on the pathology of breast cancers (BCs) in men with BRCA1/2 mutations. Using the largest available dataset, we determined whether MBCs arising in BRCA1/2 mutation carriers display specific pathologic features and whether these features differ from those of BRCA1/2 female BCs (FBCs). Methods We characterised the pathologic features of 419 BRCA1/2 MBCs and, using logistic regression analysis, contrasted those with data from 9675 BRCA1/2 FBCs and with population-based data from 6351 MBCs in the Surveillance, Epidemiology, and End Results (SEER) database. Results Among BRCA2 MBCs, grade significantly decreased with increasing age at diagnosis (P = 0.005). Compared with BRCA2 FBCs, BRCA2 MBCs were of significantly higher stage (P for trend = 2 × 10−5) and higher grade (P for trend = 0.005) and were more likely to be oestrogen receptor–positive [odds ratio (OR) 10.59; 95 % confidence interval (CI) 5.15–21.80] and progesterone receptor–positive (OR 5.04; 95 % CI 3.17–8.04). With the exception of grade, similar patterns of associations emerged when we compared BRCA1 MBCs and FBCs. BRCA2 MBCs also presented with higher grade than MBCs from the SEER database (P for trend = 4 × 10−12). Conclusions On the basis of the largest series analysed to date, our results show that BRCA1/2 MBCs display distinct pathologic characteristics compared with BRCA1/2 FBCs, and we identified a specific BRCA2-associated MBC phenotype characterised by a variable suggesting greater biological aggressiveness (i.e., high histologic grade). These findings could lead to the development of gender-specific risk prediction models and guide clinical strategies appropriate for MBC management. KW - Male breast cancer KW - BRCA1/2 KW - Pathology KW - Histologic grade KW - Genotype–phenotype correlations Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-164769 VL - 18 IS - 15 ER - TY - JOUR A1 - Widowski, Helene A1 - Reynaert, Niki L. A1 - Ophelders, Daan R. M. G. A1 - Hütten, Matthias C. A1 - Nikkels, Peter G. J. A1 - Severens-Rijvers, Carmen A. H. A1 - Cleutjens, Jack P. M. A1 - Kemp, Matthew W. A1 - Newnham, John P. A1 - Saito, Masatoshi A1 - Usuda, Haruo A1 - Payne, Matthew S. A1 - Jobe, Alan H. A1 - Kramer, Boris W. A1 - Delhaas, Tammo A1 - Wolfs, Tim G. A. M. T1 - Sequential Exposure to Antenatal Microbial Triggers Attenuates Alveolar Growth and Pulmonary Vascular Development and Impacts Pulmonary Epithelial Stem/Progenitor Cells JF - Frontiers in Medicine N2 - Perinatal inflammatory stress is strongly associated with adverse pulmonary outcomes after preterm birth. Antenatal infections are an essential perinatal stress factor and contribute to preterm delivery, induction of lung inflammation and injury, pre-disposing preterm infants to bronchopulmonary dysplasia. Considering the polymicrobial nature of antenatal infection, which was reported to result in diverse effects and outcomes in preterm lungs, the aim was to examine the consequences of sequential inflammatory stimuli on endogenous epithelial stem/progenitor cells and vascular maturation, which are crucial drivers of lung development. Therefore, a translational ovine model of antenatal infection/inflammation with consecutive exposures to chronic and acute stimuli was used. Ovine fetuses were exposed intra-amniotically to Ureaplasma parvum 42 days (chronic stimulus) and/or to lipopolysaccharide 2 or 7 days (acute stimulus) prior to preterm delivery at 125 days of gestation. Pulmonary inflammation, endogenous epithelial stem cell populations, vascular modulators and morphology were investigated in preterm lungs. Pre-exposure to UP attenuated neutrophil infiltration in 7d LPS-exposed lungs and prevented reduction of SOX-9 expression and increased SP-B expression, which could indicate protective responses induced by re-exposure. Sequential exposures did not markedly impact stem/progenitors of the proximal airways (P63+ basal cells) compared to single exposure to LPS. In contrast, the alveolar size was increased solely in the UP+7d LPS group. In line, the most pronounced reduction of AEC2 and proliferating cells (Ki67+) was detected in these sequentially UP + 7d LPS-exposed lambs. A similar sensitization effect of UP pre-exposure was reflected by the vessel density and expression of vascular markers VEGFR-2 and Ang-1 that were significantly reduced after UP exposure prior to 2d LPS, when compared to UP and LPS exposure alone. Strikingly, while morphological changes of alveoli and vessels were seen after sequential microbial exposure, improved lung function was observed in UP, 7d LPS, and UP+7d LPS-exposed lambs. In conclusion, although sequential exposures did not markedly further impact epithelial stem/progenitor cell populations, re-exposure to an inflammatory stimulus resulted in disturbed alveolarization and abnormal pulmonary vascular development. Whether these negative effects on lung development can be rescued by the potentially protective responses observed, should be examined at later time points. KW - polymicrobial infection KW - vascular disturbances KW - adverse pulmonary outcomes KW - endogenous pulmonary stem cells KW - bronchopulmonary dysplasia KW - preterm birth KW - antenatal inflammation Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-229695 SN - 2296-858X VL - 8 ER - TY - JOUR A1 - Goos, Carina A1 - Dejung, Mario A1 - Wehman, Ann M. A1 - M-Natus, Elisabeth A1 - Schmidt, Johannes A1 - Sunter, Jack A1 - Engstler, Markus A1 - Butter, Falk A1 - Kramer, Susanne T1 - Trypanosomes can initiate nuclear export co-transcriptionally JF - Nucleic Acids Research N2 - The nuclear envelope serves as important messenger RNA (mRNA) surveillance system. In yeast and human, several control systems act in parallel to prevent nuclear export of unprocessed mRNAs. Trypanosomes lack homologues to most of the involved proteins and their nuclear mRNA metabolism is non-conventional exemplified by polycistronic transcription and mRNA processing by trans-splicing. We here visualized nuclear export in trypanosomes by intra- and intermolecular multi-colour single molecule FISH. We found that, in striking contrast to other eukaryotes, the initiation of nuclear export requires neither the completion of transcription nor splicing. Nevertheless, we show that unspliced mRNAs are mostly prevented from reaching the nucleus-distant cytoplasm and instead accumulate at the nuclear periphery in cytoplasmic nuclear periphery granules (NPGs). Further characterization of NPGs by electron microscopy and proteomics revealed that the granules are located at the cytoplasmic site of the nuclear pores and contain most cytoplasmic RNA-binding proteins but none of the major translation initiation factors, consistent with a function in preventing faulty mRNAs from reaching translation. Our data indicate that trypanosomes regulate the completion of nuclear export, rather than the initiation. Nuclear export control remains poorly understood, in any organism, and the described way of control may not be restricted to trypanosomes. KW - molecular biology KW - nuclear export KW - trypanosomes KW - mRNA KW - nuclear envelope Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-177709 VL - 47 IS - 1 ER - TY - JOUR A1 - Moll, Heidrun A1 - Müller, Christoph A1 - Gillitzer, Reinhard A1 - Fuchs, Harald A1 - Röllinghoff, Martin A1 - Simon, Markus M. A1 - Kramer, Michael D. T1 - Expression of T-cell-associated serine proteinase-1 during murine Leishmania major infection correlates with susceptibility to disease N2 - The expression of T-cell-associated serine proteinase 1 (MTSP-1) in vivo during Leishmania major infection was analyzed in genetically resistant C57BL/6 mice and in genetically susceptible BALB/c mice. Using a monoclonal antibody as well as an RNA probe specific for MTSP-1 to stain tissue sections, we found T cells expressing MTSP-1 in skin lesions and spleens of mice of both strains. In skin lesions, MTSP-1-positive T cells could be detected as early as 3 days after infection. Most importantly, the frequency of T cells expressing MTSP-1 was significantly higher in susceptible BALB/c mice than in resistant C57BL/6 mice. These findings suggest that MTSP-1 is associated with disease-promoting T cells and that it may be an effector molecule involved in the pathogenesis of cutaneous leishmaniasis. KW - Biologie KW - Immunologie Y1 - 1991 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-61311 ER - TY - JOUR A1 - Kramer, Michael D. A1 - Binninger, Linda A1 - Schirrmacher, Volker A1 - Moll, Heidrun A1 - Prester, Marlot A1 - Nerz, Gaby A1 - Simon, Markus M. T1 - Characterization and isolation of a trypsin-like serine protease from a long-term culture cytolytic t cell line andits expression by functionally distinct T cells N2 - No abstract available KW - Biologie Y1 - 1986 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-31636 ER - TY - JOUR A1 - Dörhöfer, Lena A1 - Lammert, Alexander A1 - Krane, Vera A1 - Gorski, Mathias A1 - Banas, Bernhard A1 - Wanner, Christoph A1 - Krämer, Bernhard K. A1 - Heid, Iris M. A1 - Böger, Carsten A. T1 - Study design of DIACORE (DIAbetes COhoRtE) - a cohort study of patients with diabetes mellitus type 2 JF - BMC Medical Genetics N2 - Background: Diabetes mellitus type 2 (DM2) is highly associated with increased risk for chronic kidney disease (CKD), end stage renal disease (ESRD) and cardiovascular morbidity. Epidemiological and genetic studies generate hypotheses for innovative strategies in DM2 management by unravelling novel mechanisms of diabetes complications, which is essential for future intervention trials. We have thus initiated the DIAbetes COhoRtE study (DIACORE). Methods: DIACORE is a prospective cohort study aiming to recruit 6000 patients of self-reported Caucasian ethnicity with prevalent DM2 for at least 10 years of follow-up. Study visits are performed in University-based recruiting clinics in Germany using standard operating procedures. All prevalent DM2 patients in outpatient clinics surrounding the recruiting centers are invited to participate. At baseline and at each 2-year follow-up examination, patients are subjected to a core phenotyping protocol. This includes a standardized online questionnaire and physical examination to determine incident micro-and macrovascular DM2 complications, malignancy and hospitalization, with a primary focus on renal events. Confirmatory outcome information is requested from patient records. Blood samples are obtained for a centrally analyzed standard laboratory panel and for biobanking of aliquots of serum, plasma, urine, mRNA and DNA for future scientific use. A subset of the cohort is subjected to extended phenotyping, e. g. sleep apnea screening, skin autofluorescence measurement, non-mydriatic retinal photography and non-invasive determination of arterial stiffness. Discussion: DIACORE will enable the prospective evaluation of factors involved in DM2 complication pathogenesis using high-throughput technologies in biosamples and genetic epidemiological studies. KW - chronic kidney-disease KW - stage renal-disease KW - glomerular-filtration-rate KW - genome-wide association KW - blood-glucose control KW - genetics KW - serum creatinine KW - cardiovascular disease KW - replacement therapy KW - United States KW - risk factors KW - diabetes mellitus type 2 KW - diabetic nephropathy KW - end stage renal disease KW - cardiovascular morbidity KW - diabetes complications KW - epidemiology Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-122040 SN - 1471-2350 VL - 14 IS - 25 ER - TY - JOUR A1 - Willems, Coen H. M. P. A1 - Urlichs, Florian A1 - Seidenspinner, Silvia A1 - Kunzmann, Steffen A1 - Speer, Christian P. A1 - Kramer, Boris W. T1 - Poractant alfa (Curosurf (R)) increases phagocytosis of apoptotic neutrophils by alveolar macrophages in vivo JF - Respiratory Research N2 - Background: Clearance of apoptotic neutrophils in the lung is an essential process to limit inflammation, since they could become a pro-inflammatory stimulus themselves. The clearance is partially mediated by alveolar macrophages, which phagocytose these apoptotic cells. The phagocytosis of apoptotic immune cells by monocytes in vitro has been shown to be augmented by several constituents of pulmonary surfactant, e. g. phospholipids and hydrophobic surfactant proteins. In this study, we assessed the influence of exogenous poractant alfa (Curosurf (R)) instillation on the in vivo phagocytosis of apoptotic neutrophils by alveolar macrophages. Methods: Poractant alfa (200 mg/kg) was instilled intratracheally in the lungs of three months old adult male C57/Black 6 mice, followed by apoptotic neutrophil instillation. Bronchoalveloar lavage was performed and alveolar macrophages and neutrophils were counted. Phagocytosis of apoptotic neutrophils was quantified by determining the number of apoptotic neutrophils per alveolar macrophages. Results: Exogenous surfactant increased the number of alveolar macrophages engulfing apoptotic neutrophils 2.6 fold. The phagocytosis of apoptotic neutrophils was increased in the presence of exogenous surfactant by a 4.7 fold increase in phagocytosed apoptotic neutrophils per alveolar macrophage. Conclusions: We conclude that the anti-inflammatory properties of surfactant therapy may be mediated in part by increased numbers of alveolar macrophages and increased phagocytosis of apoptotic neutrophils by alveolar macrophages. KW - preterm KW - surfactant protein-A KW - respiratory-distress-syndrome KW - synthetic surfactant KW - human monocytes KW - SIRP-alpha KW - lung KW - cells KW - inflammation KW - resolution KW - anti inflammation KW - drug therapy KW - surfactant Y1 - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-130721 VL - 13 IS - 17 ER - TY - JOUR A1 - Brixner, T. A1 - Aeschlimann, M. A1 - Fischer, A. A1 - Geisler, P. A1 - Goetz, S. A1 - Hecht, B. A1 - Huang, J. S. A1 - Keitzl, T. A1 - Kramer, C. A1 - Melchior, P. A1 - Pfeiffer, W. A1 - Razinskas, G. A1 - Rewitz, C. A1 - Schneider, C. A1 - Strüber, C. A1 - Tuchscherer, P. A1 - Voronine, D. V. T1 - Coherent spectroscopies on ultrashort time and length scales JF - EPJ Web of Conferences N2 - Three spectroscopic techniques are presented that provide simultaneous spatial and temporal resolution: modified confocal microscopy with heterodyne detection, space-time-resolved spectroscopy using coherent control concepts, and coherent two-dimensional nano-spectroscopy. Latest experimental results are discussed. KW - coherent spectroscopy KW - ultrashort time KW - length scale Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-129073 VL - 41 ER - TY - JOUR A1 - Gabriel, Katharina M. A. A1 - Jírů-Hillmann, Steffi A1 - Kraft, Peter A1 - Selig, Udo A1 - Rücker, Victoria A1 - Mühler, Johannes A1 - Dötter, Klaus A1 - Keidel, Matthias A1 - Soda, Hassan A1 - Rascher, Alexandra A1 - Schneider, Rolf A1 - Pfau, Mathias A1 - Hoffmann, Roy A1 - Stenzel, Joachim A1 - Benghebrid, Mohamed A1 - Goebel, Tobias A1 - Doerck, Sebastian A1 - Kramer, Daniela A1 - Haeusler, Karl Georg A1 - Volkmann, Jens A1 - Heuschmann, Peter U. A1 - Fluri, Felix T1 - Two years' experience of implementing a comprehensive telemedical stroke network comprising in mainly rural region: the Transregional Network for Stroke Intervention with Telemedicine (TRANSIT-Stroke) JF - BMC Neurology N2 - Background Telemedicine improves the quality of acute stroke care in rural regions with limited access to specialized stroke care. We report the first 2 years' experience of implementing a comprehensive telemedical stroke network comprising all levels of stroke care in a defined region. Methods The TRANSIT-Stroke network covers a mainly rural region in north-western Bavaria (Germany). All hospitals providing acute stroke care in this region participate in TRANSIT-Stroke, including four hospitals with a supra-regional certified stroke unit (SU) care (level III), three of those providing teleconsultation to two hospitals with a regional certified SU (level II) and five hospitals without specialized SU care (level I). For a two-year-period (01/2015 to 12/2016), data of eight of these hospitals were available; 13 evidence-based quality indicators (QIs) related to processes during hospitalisation were evaluated quarterly and compared according to predefined target values between level-I- and level-II/III-hospitals. Results Overall, 7881 patients were included (mean age 74.6 years +/- 12.8; 48.4% female). In level-II/III-hospitals adherence of all QIs to predefined targets was high ab initio. In level-I-hospitals, three patterns of QI-development were observed: a) high adherence ab initio (31%), mainly in secondary stroke prevention; b) improvement over time (44%), predominantly related to stroke specific diagnosis and in-hospital organization; c) no clear time trends (25%). Overall, 10 out of 13 QIs reached predefined target values of quality of care at the end of the observation period. Conclusion The implementation of the comprehensive TRANSIT-Stroke network resulted in an improvement of quality of care in level-I-hospitals. KW - pilot project KW - care tempis KW - ischemic stroke KW - thrombolysis KW - areas KW - time KW - hospitals KW - mortality KW - outcomes KW - quality Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-229214 VL - 20 ER - TY - JOUR A1 - Silwedel, Christine A1 - Hütten, Matthias C. A1 - Speer, Christian P. A1 - Härtel, Christoph A1 - Haarmann, Axel A1 - Henrich, Birgit A1 - Tijssen, Maud P. M. A1 - Alnakhli, Abdullah Ahmed A1 - Spiller, Owen B. A1 - Schlegel, Nicolas A1 - Seidenspinner, Silvia A1 - Kramer, Boris W. A1 - Glaser, Kirsten T1 - Ureaplasma-driven neonatal neuroinflammation: novel insights from an ovine model JF - Cellular and Molecular Neurobiology N2 - Ureaplasma species (spp.) are considered commensals of the adult genitourinary tract, but have been associated with chorioamnionitis, preterm birth, and invasive infections in neonates, including meningitis. Data on mechanisms involved in Ureaplasma-driven neuroinflammation are scarce. The present study addressed brain inflammatory responses in preterm lambs exposed to Ureaplasma parvum (UP) in utero. 7 days after intra-amniotic injection of UP (n = 10) or saline (n = 11), lambs were surgically delivered at gestational day 128–129. Expression of inflammatory markers was assessed in different brain regions using qRT-PCR and in cerebrospinal fluid (CSF) by multiplex immunoassay. CSF was analyzed for UP presence using ureB-based real-time PCR, and MRI scans documented cerebral white matter area and cortical folding. Cerebral tissue levels of atypical chemokine receptor (ACKR) 3, caspases 1-like, 2, 7, and C–X–C chemokine receptor (CXCR) 4 mRNA, as well as CSF interleukin-8 protein concentrations were significantly increased in UP-exposed lambs. UP presence in CSF was confirmed in one animal. Cortical folding and white matter area did not differ among groups. The present study confirms a role of caspases and the transmembrane receptors ACKR3 and CXCR4 in Ureaplasma-driven neuroinflammation. Enhanced caspase 1-like, 2, and 7 expression may reflect cell death. Increased ACKR3 and CXCR4 expression has been associated with inflammatory central nervous system (CNS) diseases and impaired blood–brain barrier function. According to these data and previous in vitro findings from our group, we speculate that Ureaplasma-induced caspase and receptor responses affect CNS barrier properties and thus facilitate neuroinflammation. KW - Ureaplasma parvum KW - CNS integrity KW - neonatal meningitis KW - preterm birth KW - immaturity KW - animal model Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-324285 VL - 43 IS - 2 ER -