@misc{SowaMurugaiyanConradetal., author = {Sowa, Mandy and Murugaiyan, Jayaseelan and Conrad, Karsten and Laass, Martin W. and Bogdanos, Dimitrios Petrou and Papp, Maria and R{\"o}diger, Stefan and Roggenbuck, Dirk and Schierack, Peter}, title = {A novel neutrophil autoantigenic target in inflammatory bowel disease}, language = {en} } @misc{MurugaiyanKruegerRoesleretal., author = {Murugaiyan, Jayaseelan and Kr{\"u}ger, Karolin and R{\"o}sler, Uwe and Weinreich, J{\"o}rg and Schierack, Peter}, title = {Assessment of species and antimicrobial resistance among Enterobacteriaceae isolated from mallard duck faeces}, series = {Environmental Monitoring and Assessment}, volume = {187}, journal = {Environmental Monitoring and Assessment}, number = {3}, issn = {0167-6369}, doi = {10.1007/s10661-015-4346-4}, pages = {127 -- 137}, language = {en} } @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} }