TY - GEN A1 - Comabella, Manual A1 - Deutschmann, Claudia A1 - Midaglia, Luciana A1 - Schierack, Peter A1 - Martínez, Júlia A1 - Roggenbuck, Dirk A1 - Montalban, Xavier T1 - Chitinase 3-like 1 is not a target antigen in patients with multiple sclerosis T2 - Multiple Sclerosis Journal Y1 - 2021 U6 - https://doi.org/10.1177/1352458520980141 SN - 1477-0970 SN - 1352-4585 VL - 27 IS - 9 SP - 1455 EP - 1457 ER - TY - GEN A1 - Deutschmann, Claudia A1 - Dinter, Franziska A1 - Rödiger, Stefan A1 - Roggenbuck, Dirk A1 - Schierack, Peter T1 - Comparison of Lab and Point of Care (POC) technologies – case study for CHI3L1, Potsdam Days on Bioanalysis Y1 - 2017 UR - https://www.researchgate.net/publication/321419307 ER - TY - GEN A1 - Deutschmann, Claudia A1 - Roggenbuck, Dirk A1 - Schierack, Peter T1 - The loss of tolerance to CHI3L1-A putative role in inflammatory bowel disease? T2 - Clinical Immunology Y1 - 2019 U6 - https://doi.org/10.1016/j.clim.2018.12.005 SN - 1521-6616 SN - 1521-7035 VL - 199 SP - 12 EP - 17 ER - TY - GEN A1 - Deutschmann, Claudia A1 - Sowa, Mandy A1 - Murugaiyan, Jayaseelan A1 - Roessler, Uwe A1 - Röber, Nadja A1 - Conrad, Karsten A1 - Laass, Martin W. A1 - Bogdanos, Dimitrios Petrou A1 - Sipeki, Nora A1 - Papp, Maria A1 - Rödiger, Stefan A1 - Roggenbuck, Dirk A1 - Schierack, Peter T1 - Identification of Chitinase-3-Like Protein 1 as a Novel Neutrophil Antigenic Target in Crohn’s Disease T2 - Journal of Crohn's and Colitis N2 - Background and Aims There is an increasing incidence of inflammatory bowel disease [IBD]. Autoimmune responses are involved in the pathophysiology of IBD, but their underlying pathways and target antigens have not yet been fully elucidated. Methods Autoantigenic targets in IBD were identified after separation of whole cell proteins isolated from neutrophils using two-dimensional electrophoresis and matrix assisted laser desorption ionization – time of flight mass spectrometry-based protein identification of the spots that displayed Western blotting signals with anti-neutrophil cytoplasmic antibody-positive sera. The prevalence of IgG, IgA and secretory IgA [sIgA] to chitinase 3-like protein 1 [CHI3L1] was analysed by enzyme-linked immunosorbent assays using recombinant CHI3L1 in 110 patients with Crohn’s disease [CD], 95 with ulcerative colitis [UC], 126 with coeliac disease [CeD] and 86 healthy controls [HCs]. Results The 18-glycosylhydrolase family member CHI3L1 was identified as a neutrophil autoantigenic target. CD patients displayed significantly higher levels of IgG to CHI3L1 than patients with UC and CeD (p < 0.0001, respectively). IgA and sIgA to CHI3L1 was significantly higher in CD than in UC, CeD and HCs [p < 0.0001, respectively]. IgA and sIgA to CHI3L1 demonstrated the highest prevalence in CD [25.5%, 28/110; and 41.8%%, 46/110] compared to HCs [2.3%, 2/86; and 4.7%%, 4/86; p = 0.0015 and p < 0.0001] and are associated with a more complicated progression of CD. Conclusion CHI3L1 is a novel neutrophil autoantigenic target in CD. IgA and sIgA to CHI3L1 may serve as novel markers for CD and may facilitate the serological diagnosis of IBD. Y1 - 2019 U6 - https://doi.org/10.1093/ecco-jcc/jjz012 SN - 1876-4479 SN - 1873-9946 VL - 13 IS - 7 SP - 894 EP - 904 ER - TY - GEN A1 - Deutschmann, Claudia A1 - Roggenbuck, Dirk A1 - Schierack, Peter A1 - Rödiger, Stefan T1 - Autoantibody testing by enzyme-linked immunosorbent assay-a case in which the solid phase decides on success and failure T2 - Heliyon Y1 - 2020 U6 - https://doi.org/10.1016/j.heliyon.2020.e03270 SN - 2405-8440 VL - 6 IS - 1 ER - TY - GEN A1 - Dinter, Franziska A1 - Deutschmann, Claudia A1 - Schierack, Peter A1 - Dame, Gregory A1 - Rödiger, Stefan T1 - Integration of Cardiovascular Disease Biomarkers in a Microfluidic Microbead Chip Y1 - 2017 UR - https://f1000research.com/posters/6-2136 N1 - Potsdam Days on Bioanalysis 2017 ER - TY - GEN A1 - Deutschmann, Claudia A1 - Roggenbuck, Dirk A1 - Schierack, Peter T1 - The loss of tolerance to CHI3L1-A putative role in inflammatory bowel disease? T2 - Clinical Immunology Y1 - 2018 U6 - https://doi.org/10/gftf2k SN - 1521-6616 VL - 199 SP - 12 EP - 17 ER -