TY - GEN A1 - Scholz, Juliane A1 - Großmann, Kai A1 - Knütter, Ilka A1 - Hiemann, Rico A1 - Sowa, Mandy A1 - Röber, Nadja A1 - Rödiger, Stefan A1 - Schierack, Peter A1 - Reinhold, Dirk A1 - Bogdanos, Dimitrios Petrou A1 - Meroni, Pier Luigi A1 - Radice, Antonella A1 - Conrad, Karsten A1 - Roggenbuck, Dirk T1 - Second generation analysis of antinuclear antibody (ANA) by combination of screening and confirmatory testing T2 - Clinical Chemistry and Laboratory Medicine Y1 - 2015 U6 - https://doi.org/10.1515/cclm-2015-0083 SN - 1437-4331 VL - 53 IS - 12 SP - 1991 EP - 2002 ER - TY - GEN A1 - Großmann, Kai A1 - Röber, Nadja A1 - Hiemann, Rico A1 - Rödiger, Stefan A1 - Schierack, Peter A1 - Reinhold, Dirk A1 - Laass, Martin W. A1 - Conrad, Karsten A1 - Roggenbuck, Dirk T1 - Simultaneous detection of celiac disease-specific IgA antibodies and total IgA T2 - Autoimmunity Highlights Y1 - 2016 U6 - https://doi.org/10.1007/s13317-016-0073-2 SN - 2038-0305 SN - 2038-3274 VL - 7 IS - 2 ER - TY - GEN A1 - Roggenbuck, Dirk A1 - Reinhold, Dirk A1 - Baumgart, Daniel C. A1 - Schierack, Peter A1 - Conrad, Karsten A1 - Laass, Martin W. T1 - Autoimmunity in Crohn's Disease-A Putative Stratification Factor of the Clinical Phenotype T2 - Advances in Clinical Chemistry Y1 - 2016 U6 - https://doi.org/10.1016/bs.acc.2016.06.002 SN - 0065-2423 VL - 77 SP - 77 EP - 101 ER - TY - GEN A1 - Sowa, Mandy A1 - Hiemann, Rico A1 - Schierack, Peter A1 - Reinhold, Dirk A1 - Conrad, Karsten A1 - Roggenbuck, Dirk T1 - Next-Generation Autoantibody Testing by Combination of Screening and Confirmation-the CytoBead® Technology T2 - Clinical Reviews in Allergy & Immunology Y1 - 2017 U6 - https://doi.org/10.1007/s12016-016-8574-3 SN - 1559-0267 SN - 1080-0549 VL - 53 IS - 1 SP - 87 EP - 104 ER - TY - GEN A1 - Reddig, Annika A1 - Lorenz, Sebastian A1 - Hiemann, Rico A1 - Guttek, Karina A1 - Hartig, Roland A1 - Heiserich, Lisa A1 - Peter, Vanessa A1 - Schierack, Peter A1 - Sack, Ulrich A1 - Roggenbuck, Dirk A1 - Reinhold, Dirk A1 - Eberle, Caroline T1 - Cytostatic drug resistance monitored by γH2AX T2 - Cytometry Part A Y1 - 2015 U6 - https://doi.org/10.1002/cyto.a.22667 SN - 1552-4930 SN - 1552-4922 VL - 87 IS - 8 SP - 724 EP - 732 ER - TY - GEN A1 - Reddig, Annika A1 - Rübe, Claudia E. A1 - Rödiger, Stefan A1 - Schierack, Peter A1 - Reinhold, Dirk A1 - Roggenbuck, Dirk T1 - DNA damage assessment and potential applications in laboratory diagnostics and precision medicine T2 - Journal of Laboratory and Precision Medicine Y1 - 2018 U6 - https://doi.org/10.21037/jlpm.2018.03.06 SN - 2519-9005 VL - 3 ER - TY - GEN A1 - Sowa, Mandy A1 - Reddig, Annika A1 - Schierack, Peter A1 - Reinhold, Dirk A1 - Roggenbuck, Dirk T1 - Phosphorylated histone 2AX foci determination in capillary blood mononuclear cells T2 - Journal of Laboratory and Precision Medicine Y1 - 2018 U6 - https://doi.org/10.21037/jlpm.2018.04.02 SN - 2519-9005 VL - 3 ER - TY - GEN A1 - Roggenbuck, Dirk A1 - Elmont, Emilien A1 - Reinhold, Dirk A1 - Schierack, Peter A1 - Conrad, Karsten A1 - Boucraut, Joseph T1 - Autoimmune Perpheral Neuropathies and Contribution of Antiganglioside/Sulphatide Autoantibody Testing T2 - Mediterranean Jounal of Rheumatology Y1 - 2020 U6 - https://doi.org/10.31138/mjr.31.1.10 SN - 2529-198X VL - 31 IS - 1 SP - 10 EP - 18 ER - TY - GEN A1 - George, Sandra A1 - Noack, M. A1 - Vanek, Monika A1 - Rentzsch, J. A1 - Röber, Nadja A1 - Roggenbuck, Dirk A1 - Conrad, Karsten A1 - Küpper, Jan-Heiner T1 - Expression of nicotinic acetylcholine receptor subunits in HEp-2 cells for immunodetection of autoantibody specificities in sera fro Myasthenia gravis patients T2 - Clinical Hemorheology and Microcirculation Y1 - 2015 U6 - https://doi.org/10.3233/CH-151999 SN - 1875-8622 SN - 1386-0291 VL - 61 IS - 2 SP - 385 EP - 396 ER - TY - GEN A1 - George, Sandra A1 - Paulick, Silvia A1 - Knütter, Ilka A1 - Röber, Nadja A1 - Hiemann, Rico A1 - Roggenbuck, Dirk A1 - Conrad, Karsten A1 - Küpper, Jan-Heiner T1 - Stable Expression of Human Muscle-Specific Kinase in HEp-2 M4 Cells for Automatic Immunofluorescence Diagnostics of Myasthenia Gravis T2 - PLOS one Y1 - 2014 U6 - https://doi.org/10.1371/journal.pone.0083924 SN - 1932-6203 VL - 9 IS - 1 SP - e83924 ER - TY - GEN A1 - George, Sandra A1 - Georgi, M. A1 - Roggenbuck, Dirk A1 - Conrad, Karsten A1 - Küpper, Jan-Heiner T1 - A strategy for cell-based multiplex diagnostics of Myasthenia gravis and autoimmune encephalitis by modifying the subcellular localization of cell membrane autoantigensgravis T2 - Clinical Hemorheology and Microcirculation Y1 - 2014 U6 - https://doi.org/10.3233/CH-141897 SN - 1386-0291 SN - 1875-8622 VL - 58 IS - 1 SP - 211 EP - 228 ER - TY - CHAP A1 - George, Sandra A1 - Noack, Monika A1 - Vanek, Monika A1 - Rentzsch, Juliane A1 - Röber, Nadja A1 - Conrad, Karsten A1 - Roggenbuck, Dirk A1 - Küpper, Jan-Heiner T1 - Expression of nicotinic acetylcholine receptor subunits in HEp-2 cells for immunodetection of autoantibody specificities in sera from Myasthenia gravis patients T2 - From autoantibody research to standardized diagnostic assays in the management of human diseases, report on the 12th Dresden Symposium on Autoantibodies, September 23-26, 2015 Y1 - 2015 SN - 978-3-95853-104-8 SP - 195 EP - 196 PB - Pabst Science Publishers CY - Lengerich ER - TY - GEN A1 - Kundzer, Alena V. A1 - Volkova, Margarita V. A1 - Bogdanos, Dimitrios Petrou A1 - Rödiger, Stefan A1 - Schierack, Peter A1 - Generalov, I. A1 - Nevinsky, G. A. A1 - Roggenbuck, Dirk T1 - Deoxyribonuclease activity of polyclonal IgGs: a putative serological marker in patients with spondyloarthritides T2 - Immunologic Research N2 - Antibodies executing catalytic activity are referred to as antibody enzymes or short “abzymes” and may have diagnostic relevance. Abzymes with deoxyribonuclease (DNase) activity have been demonstrated in patients with autoimmune and infectious diseases. Despite several reports on the occurrence of DNase abzymes in systemic autoimmune rheumatic diseases, conclusive data about DNase activity of antibodies in patients with spondyloarthritides (SpAs) are lacking. In recent cross-sectional studies evaluating levels of IgG DNase activity in patients with psoriatic arthritis (PsA), reactive arthritis (ReA), and ankylosing spondylitis (AS), DNase activity of IgG has been assessed by the rivanol clot method and confirmed by agarose gel electrophoresis. Remarkably, levels of IgG DNase activity were significantly higher in sera of SpA patients than those in control subjects. In patients with PsA, ReA, and AS, a positive correlation of DNase IgG activity with synovitis, disease activity, and stage of spondylitis was observed, respectively. Given the involvement of autoimmune reactions in cytolysis and connective tissue degradation in PsA, ReA, and to a lesser extent in AS, abzymes might have an impact on the pathophysiology of SpAs. Detection of IgG DNase activity in patients suffering from SpA represents an exciting new research field and may assist in the differential diagnosis of SpA. Y1 - 2013 U6 - https://doi.org/10.1007/s12026-013-8424-9 SN - 0257-277X SN - 1559-0755 VL - 56 IS - 2-3 SP - 457 EP - 464 ER - TY - GEN A1 - Schierack, Peter A1 - Rödiger, Stefan A1 - Kuhl, Christoph A1 - Hiemann, Rico A1 - Roggenbuck, Dirk A1 - Li, Ganwu A1 - Weinreich, Jörg A1 - Berger, Enrico A1 - Nolan, Lisa K. A1 - Nicholson, Bryon A1 - Römer, Antje A1 - Frömmel, Ulrike A1 - Wieler, Lothar H. A1 - Schröder, Christian T1 - Porcine E. coli: Virulence-Associated Genes, Resistance Genes and Adhesion and Probiotic Activity Tested by a New Screening Method T2 - PLoS One N2 - We established an automated screening method to characterize adhesion of Escherichia coli to intestinal porcine epithelial cells (IPEC-J2) and their probiotic activity against infection by enteropathogenic E. coli (EPEC). 104 intestinal E. coli isolates from domestic pigs were tested by PCR for the occurrence of virulence-associated genes, genes coding for resistances to antimicrobial agents and metals, and for phylogenetic origin by PCR. Adhesion rates and probiotic activity were examined for correlation with the presence of these genes. Finally, data were compared with those from 93 E. coli isolates from wild boars. Isolates from domestic pigs carried a broad variety of all tested genes and showed great diversity in gene patterns. Adhesions varied with a maximum of 18.3 or 24.2 mean bacteria adherence per epithelial cell after 2 or 6 hours respectively. Most isolates from domestic pigs and wild boars showed low adherence, with no correlation between adhesion/probiotic activity and E. coli genes or gene clusters. The gene sfa/foc, encoding for a subunit of F1C fimbriae did show a positive correlative association with adherence and probiotic activity; however E. coli isolates from wild boars with the sfa/foc gene showed less adhesion and probiotic activity than E. coli with the sfa/foc gene isolated from domestic pigs after 6 hour incubation. In conclusion, screening porcine E. coli for virulence associated genes genes, adhesion to intestinal epithelial cells, and probiotic activity revealed a single important adhesion factor, several probiotic candidates, and showed important differences between E. coli of domestic pigs and wild boars. Y1 - 2013 U6 - https://doi.org/10.1371/journal.pone.0059242 VL - 8 IS - 4 ER - TY - GEN A1 - Frömmel, Ulrike A1 - Lehmann, Werner A1 - Rödiger, Stefan A1 - Böhm, Alexander A1 - Nitschke, Jörg A1 - Weinreich, Jörg A1 - Groß, Julia A1 - Roggenbuck, Dirk A1 - Zinke, Olaf A1 - Ansorge, Hermann A1 - Vogel, Steffen A1 - Klemm, Per A1 - Wex, Thomas A1 - Schröder, Christian A1 - Wieler, Lothar H. A1 - Schierack, Peter T1 - Adhesion of human and animal Escherichia coli strains in association with their virulence-associated genes and phylogenetic origins T2 - Applied and environmental microbiology N2 - Intestinal colonization is influenced by the ability of the bacterium to inhabit a niche, which is based on the expression of colonization factors. Escherichia coli carries a broad range of virulence-associated genes (VAGs) which contribute to intestinal (inVAGs) and extraintestinal (exVAGs) infection. Moreover, initial evidence indicates that inVAGs and exVAGs support intestinal colonization. We developed new screening tools to genotypically and phenotypically characterize E. coli isolates originating in humans, domestic pigs, and 17 wild mammal and avian species. We analyzed 317 isolates for the occurrence of 44 VAGs using a novel multiplex PCR microbead assay (MPMA) and for adhesion to four epithelial cell lines using a new adhesion assay. We correlated data for the definition of new adhesion genes. inVAGs were identified only sporadically, particularly in roe deer (Capreolus capreolus) and the European hedgehog ( Erinaceus europaeus). The prevalence of exVAGs depended on isolation from a specific host. Human uropathogenic E. coli isolates carried exVAGs with the highest prevalence, followed by badger (Meles meles) and roe deer isolates. Adhesion was found to be very diverse. Adhesion was specific to cells, host, and tissue, though it was also unspecific. Occurrence of the following VAGs was associated with a higher rate of adhesion to one or more cell lines: afa-dra, daaD, tsh, vat, ibeA, fyuA, mat, sfa-foc, malX, pic, irp2, and papC. In summary, we established new screening methods which enabled us to characterize large numbers of E. coli isolates. We defined reservoirs for potential pathogenic E. coli. We also identified a very broad range of colonization strategies and defined potential new adhesion genes. Y1 - 2013 U6 - https://doi.org/10.1128/AEM.01384-13 SN - 1098-5336 SN - 0099-2240 VL - 79 IS - 19 SP - 5814 EP - 5829 ER - TY - GEN A1 - Frömmel, Ulrike A1 - Böhm, Alexander A1 - Nitschke, Jörg A1 - Weinreich, Jörg A1 - Groß, Julia A1 - Rödiger, Stefan A1 - Wex, Thomas A1 - Ansorge, Hermann A1 - Zinke, Olaf A1 - Schröder, Christian A1 - Roggenbuck, Dirk A1 - Schierack, Peter T1 - Adhesion patterns of commensal and pathogenic Escherichia coli from humans and wild animals on human and porcine epithelial cell lines T2 - Gut Pathogens N2 - Abstract BACKGROUND: Different strategies of colonization or infection by E. coli result in formation of certain adhesion patterns which help also in classifying intestinal E. coli into pathotypes. Little is known about adhesion patterns and host- and tissue adaption of commensal E. coli and about E. coli originating in clinically healthy hosts carrying pathotype-specific virulence-associated genes. FINDINGS: Adhesion pattern of E. coli (n = 282) from humans and from 18 animal species were verified on intestinal human Caco-2 and porcine IPEC-J2 cells and, furthermore, for comparison on human urinary bladder 5637, porcine kidney PK-15 epithelial and HEp-2 cells. The analysis was carried out on 150,000 images of adhesion assays.Adhesion patterns were very diverse; 88 isolates were completely non-adherent, whereas 194 adhered to at least one cell line with the dominant adhesion patterns "diffusely distributed" and "microcolony formation". Adhesion patterns "chains" and "clumps" were also visible. Chain formation was mediated by the presence of epithelial cells. Clump formation was very specific on only the 5637 cell line. All enteropathogenic (eae+) E. coli (EPEC; n = 14) were able to form microcolonies which was cell line specific for each isolate. Most EPEC formed microcolonies on intestinal IPEC-J2 and Caco-2 but several also on urinary tract cells. Shigatoxin-producing (stx+) E. coli (n = 10) showed no specific adhesion patterns. CONCLUSIONS: E. coli isolates were highly diverse. Commensal and pathogenic isolates can adhere in various forms, including diffuse distribution, microcolonies, chains and clumps. Microcolony formation seems to be a global adhesion strategy also for commensal E. coli. Y1 - 2013 U6 - https://doi.org/10.1186/1757-4749-5-31 SN - 1757-4749 VL - 5 IS - 31 ER - TY - GEN A1 - Großmann, Kai A1 - Roggenbuck, Dirk A1 - Schröder, Christian A1 - Conrad, Karsten A1 - Schierack, Peter A1 - Sack, Ulrich T1 - Multiplex assessment of non-organ-specific autoantibodies with a novel microbead-based immunoassay T2 - Cytometry Part A Y1 - 2011 U6 - https://doi.org/10.1002/cyto.a.21009 SN - 1552-4922 SN - 1552-4930 VL - 79 IS - 2 SP - 118 EP - 125 ER - TY - CHAP A1 - Rödiger, Stefan A1 - Schierack, Peter A1 - Böhm, Alexander A1 - Nitschke, Jörg A1 - Berger, Ingo A1 - Frömmel, Ulrike A1 - Schmidt, Carsten A1 - Ruhland, Mirko A1 - Schimke, Ingolf A1 - Roggenbuck, Dirk A1 - Lehmann, Werner A1 - Schröder, Christian ED - Seitz, Harald ED - Berger, Ingo T1 - A highly versatile microscope imaging technology platform for the multiplex real-time detection of biomolecules and autoimmune antibodies T2 - Molecular diagnostics Y1 - 2013 SN - 978-3-642-37690-0 SN - 978-3-642-37691-7 SP - 35 EP - 74 PB - Springer CY - Berlin [u.a.] ER - TY - GEN A1 - Nalli, Cecilia A1 - Somma, Valentina A1 - Andreoli, Laura A1 - Büttner, Thomas A1 - Schierack, Peter A1 - Mahler, Michael A1 - Roggenbuck, Dirk A1 - Tincani, Angela T1 - Anti-phospholipid IgG antibodies detected by line immunoassay differentiate patients with anti-phospholipid syndrome and other autoimmune diseases T2 - Autoimmunity Highlights Y1 - 2018 U6 - https://doi.org/10.1007/s13317-018-0106-0 SN - 2038-3274 SN - 2038-0305 VL - 9 IS - 1 ER -