TY - CHAP A1 - Rödiger, Stefan A1 - Böhm, Alexander A1 - Nitschke, Jörg A1 - Stavitskaya, Luba A1 - Gruner, Melanie A1 - Kundzer, Alena V. A1 - Volkova, Margarita V. A1 - Generalov, I. A1 - Schmidt, Carsten A1 - Schröder, Christian A1 - Roggenbuck, Dirk A1 - Schierack, Peter T1 - Development of a Method for Multiplex Real-Time Analysis of Enzymatic Activity on a Microbead-Chip T2 - Infection, tumors and autoimmunity, report on the 11th Dresden Symposium on Autoantibodies held in Dresden on September 1-4, 2013 Y1 - 2013 SN - 978-3-89967-881-9 SP - 275 EP - 280 PB - Pabst Science Publ. CY - Lengerich [u.a.] 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 - CHAP A1 - Rödiger, Stefan A1 - Böhm, Alexander A1 - Nitschke, Jörg A1 - Stavitskaya, Luba A1 - Gruner, Melanie A1 - Kundzer, Alena V. A1 - Volkova, Margarita V. A1 - Generalov, I. A1 - Schmidt, Carsten A1 - Schröder, Christian A1 - Roggenbuck, Dirk A1 - Schierack, Peter T1 - Development of a Method for Multiplex Real-Time Analysis of Enzymati c Activity on a Microbead-Chip. T2 - Infections, Tumors and Autoimmunity, Report on the 11th Dresden Symposium on Autoantibodies held in Dresden on September 01. - 04., 2013 Y1 - 2013 SN - 978-3-89967-881-9 SP - 280 PB - Pabst Science Publ. CY - Lengerich ER -