@misc{DeutschmannSowaMurugaiyanetal., author = {Deutschmann, Claudia and Sowa, Mandy and Murugaiyan, Jayaseelan and Roessler, Uwe and R{\"o}ber, Nadja and Conrad, Karsten and Laass, Martin W. and Bogdanos, Dimitrios Petrou and Sipeki, Nora and Papp, Maria and R{\"o}diger, Stefan and Roggenbuck, Dirk and Schierack, Peter}, title = {Identification of Chitinase-3-Like Protein 1 as a Novel Neutrophil Antigenic Target in Crohn's Disease}, series = {Journal of Crohn's and Colitis}, volume = {13}, journal = {Journal of Crohn's and Colitis}, number = {7}, issn = {1876-4479}, doi = {10.1093/ecco-jcc/jjz012}, pages = {894 -- 904}, abstract = {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.}, language = {en} } @misc{KundzerVolkovaBogdanosetal., author = {Kundzer, Alena V. and Volkova, Margarita V. and Bogdanos, Dimitrios Petrou and R{\"o}diger, Stefan and Schierack, Peter and Generalov, I. and Nevinsky, G. A. and Roggenbuck, Dirk}, title = {Deoxyribonuclease activity of polyclonal IgGs: a putative serological marker in patients with spondyloarthritides}, series = {Immunologic Research}, volume = {56}, journal = {Immunologic Research}, number = {2-3}, issn = {0257-277X}, doi = {10.1007/s12026-013-8424-9}, pages = {457 -- 464}, abstract = {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.}, language = {en} } @misc{SowaKolendaBaumgartetal., author = {Sowa, Mandy and Kolenda, Rafał and Baumgart, Daniel C. and Pratschke, Johann and Papp, Maria and Tornai, Tamas and Suchanski, Jaroslaw and Bogdanos, Dimitrios Petrou and Mytilinaiou, Maria G. and Hammermann, Jutta and Laass, Martin W. and Conrad, Karsten and Schramm, Christoph and Franke, Andre and Roggenbuck, Dirk and Schierack, Peter}, title = {Mucosal Autoimmunity to Cell-Bound GP2 Isoforms Is a Sensitive Marker in PSC and Associated With the Clinical Phenotype}, series = {Frontiers in Immunology}, volume = {9}, journal = {Frontiers in Immunology}, number = {1959}, issn = {1664-3224}, doi = {10.3389/fimmu.2018.01959}, language = {en} } @misc{MaslyanskiyLazarevaOlineketal., author = {Maslyanskiy, Aleksey and Lazareva, Natalya and Olinek, Polina and Schierack, Peter and Hentschel, Christian and Cuccato, Juliane and Bogdanos, Dimitrios Petrou and Lapin, Sergey V. and Roggenbuck, Dirk}, title = {Anti-hnRNP B1 (RA33) Autoantibodies Are Associated with the Clinical Phenotype in Russian Patients with Rheumatoid Arthritis and Systemic Sclerosis}, series = {Journal of Immunology Research}, volume = {2014}, journal = {Journal of Immunology Research}, doi = {10.1155/2014/516593}, pages = {7}, language = {en} } @misc{VillaltaMytilinaiouElsneretal., author = {Villalta, Danilo and Mytilinaiou, Maria G. and Elsner, Martina and Hentschel, Christian and Cuccato, Juliane and Somma, Valentina and Schierack, Peter and Roggenbuck, Dirk and Bogdanos, Dimitrios Petrou}, title = {Autoantibodies to asialoglycoprotein receptor (ASGPR) in patients with autoimmune liver diseases}, series = {Clinica Chimica Acta}, volume = {450}, journal = {Clinica Chimica Acta}, issn = {0009-8981}, doi = {10.1016/j.cca.2015.07.021}, pages = {5}, language = {en} } @misc{LopensKrawczykPappetal., author = {Lopens, Steffi and Krawczyk, Marcin and Papp, Maria and Milkiewicz, Piotr and Schierack, Peter and Liu, Yudong and Wunsch, Ewa and Conrad, Karsten and Roggenbuck, Dirk}, title = {The search for the Holy Grail: autoantigenic targets in primary sclerosing cholangitis asscociated with diesease phenotype an neoplasia}, series = {Autoimmunity Highlights}, volume = {11}, journal = {Autoimmunity Highlights}, issn = {2038-3274}, doi = {10.1186/s13317-020-00129-x}, pages = {14}, language = {en} } @misc{SowaGrossmannScholzetal., author = {Sowa, Mandy and Großmann, Kai and Scholz, Juliane and R{\"o}ber, Nadja and R{\"o}diger, Stefan and Schierack, Peter and Conrad, Karsten and Roggenbuck, Dirk and Hiemann, Rico}, title = {Der CytoBead-Assay - Eine neue M{\"o}glichkeit der multiparametrischen Autoantik{\"o}rperanalytik bei systemischen Autoimmunerkrankungen}, series = {Journal of Laboratory Medicine}, volume = {38}, journal = {Journal of Laboratory Medicine}, number = {6}, doi = {10.1515/labmed-2014-0041}, pages = {309 -- 317}, language = {de} } @misc{SowaTrezziHiemannetal., author = {Sowa, Mandy and Trezzi, Barbara and Hiemann, Rico and Schierack, Peter and Großmann, Kai and Scholz, Juliane and Somma, Valentina and Sinico, Renato Alberto and Roggenbuck, Dirk and Radice, Antonella}, title = {Simultaneous comprehensive multiplex autoantibody analysis for rapidly progressive glomerulonephritis}, series = {Medicine}, volume = {95}, journal = {Medicine}, number = {44}, issn = {0025-7974}, doi = {10.1097/MD.0000000000005225}, pages = {5225}, language = {en} } @misc{DeutschmannRoggenbuckSchieracketal., author = {Deutschmann, Claudia and Roggenbuck, Dirk and Schierack, Peter and R{\"o}diger, Stefan}, title = {Autoantibody testing by enzyme-linked immunosorbent assay-a case in which the solid phase decides on success and failure}, series = {Heliyon}, volume = {6}, journal = {Heliyon}, number = {1}, issn = {2405-8440}, doi = {10.1016/j.heliyon.2020.e03270}, pages = {6}, language = {en} } @misc{DeutschmannRoggenbuckSchierack, author = {Deutschmann, Claudia and Roggenbuck, Dirk and Schierack, Peter}, title = {The loss of tolerance to CHI3L1-A putative role in inflammatory bowel disease?}, series = {Clinical Immunology}, volume = {199}, journal = {Clinical Immunology}, issn = {1521-6616}, doi = {10/gftf2k}, pages = {12 -- 17}, language = {en} }