{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T01:01:22Z","timestamp":1792112482280,"version":"4.4.0"},"reference-count":176,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2020,10,3]],"date-time":"2020-10-03T00:00:00Z","timestamp":1601683200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis is an autoimmune disorder which affects small- and, to a lesser degree, medium-sized vessels. ANCA-associated vasculitis encompasses three disease phenotypes: granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA), and eosinophilic granulomatosis with polyangiitis (EGPA). This classification is largely based on clinical presentations and has several limitations. Recent research provided evidence that genetic background, risk of relapse, prognosis, and co-morbidities are more closely related to the ANCA serotype, proteinase 3 (PR3)-ANCA and myeloperoxidase (MPO)-ANCA, compared to the disease phenotypes GPA or MPA. This finding has been extended to the investigation of biomarkers predicting disease activity, which again more closely relate to the ANCA serotype. Discoveries related to the immunopathogenesis translated into clinical practice as targeted therapies are on the rise. This review will summarize the current understanding of the immunopathogenesis of ANCA-associated vasculitis and the interplay between ANCA serotype and proposed disease biomarkers and illustrate how the extending knowledge of the immunopathogenesis will likely translate into development of a personalized medicine approach in the management of ANCA-associated vasculitis.<\/jats:p>","DOI":"10.3390\/ijms21197319","type":"journal-article","created":{"date-parts":[[2020,10,5]],"date-time":"2020-10-05T08:35:57Z","timestamp":1601886957000},"page":"7319","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":127,"title":["Immunopathogenesis of ANCA-Associated Vasculitis"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2945-2946","authenticated-orcid":false,"given":"Andreas","family":"Kronbichler","sequence":"first","affiliation":[{"name":"Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1511-9587","authenticated-orcid":false,"given":"Keum Hwa","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sara","family":"Denicolo","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daeun","family":"Choi","sequence":"additional","affiliation":[{"name":"Yonsei University College of Medicine, Yonsei University, Seoul 03722, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyojeong","family":"Lee","sequence":"additional","affiliation":[{"name":"Yonsei University College of Medicine, Yonsei University, Seoul 03722, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Donghyun","family":"Ahn","sequence":"additional","affiliation":[{"name":"Yonsei University College of Medicine, Yonsei University, Seoul 03722, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5149-3392","authenticated-orcid":false,"given":"Kang Hyun","family":"Kim","sequence":"additional","affiliation":[{"name":"Yonsei University College of Medicine, Yonsei University, Seoul 03722, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ji Han","family":"Lee","sequence":"additional","affiliation":[{"name":"Yonsei University College of Medicine, Yonsei University, Seoul 03722, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"HyungTae","family":"Kim","sequence":"additional","affiliation":[{"name":"Yonsei University College of Medicine, Yonsei University, Seoul 03722, 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