PMID- 27427341 OWN - NLM STAT- MEDLINE DCOM- 20170317 LR - 20170317 IS - 1440-1827 (Electronic) IS - 1320-5463 (Linking) VI - 66 IP - 8 DP - 2016 Aug TI - Presence of Citrullinated Histone H3-Positive Neutrophils in Microscopic Polyangiitis from the Early Phase: An Autopsy Proven Case. PG - 466-71 LID - 10.1111/pin.12434 [doi] AB - A 76-year-old man was admitted with general fatigue, weight loss, fever, headache, renal failure, and a high serum level of myeloperoxidase-antineutrophil cytoplasmic antibody. Biopsy revealed citrullinated histone H3 (citH3)-positive neutrophils adherent to the temporal artery endothelium. Three days after completing pulse steroid therapy, he suffered from a sudden disturbance of consciousness and died. On autopsy, the kidneys showed the most severe vasculitis with dense infiltration of citH3-positive neutrophils. The lungs showed intra-alveolar hemorrhage due to capillaritis. Severe brain hemorrhage was found in the left frontal lobe and putamen with uncal herniation. No vasculitis or thrombi was observed in the brain. The right dura mater was thickened due to fibrosis and inflammation. In conclusion, autopsy revealed systemic vasculitis with infiltration of abundant citH3-positive neutrophils, suggesting that the neutrophil extracellular trap formation and citH3 might play important roles in the early phases and development of microscopic polyangiitis. CI - (c) 2016 Japanese Society of Pathology and John Wiley & Sons Australia, Ltd. FAU - Matsuda, Yoko AU - Matsuda Y AD - Department of Pathology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan. FAU - Hamayasu, Hideki AU - Hamayasu H AD - Department of Pathology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan. FAU - Seki, Atsuko AU - Seki A AD - Department of Pathology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan. FAU - Nonaka, Keisuke AU - Nonaka K AD - Department of Pathology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan. FAU - Wang, Tan AU - Wang T AD - Department of Pathology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan. AD - Department of Pathology, Henan University of Traditional Chinese Medicine, ZhengZhou, China. FAU - Matsumoto, Takumi AU - Matsumoto T AD - Department of Rheumatology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan. FAU - Hamano, Yoshitomo AU - Hamano Y AD - Department of Nephrology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan. FAU - Sumikura, Hiroyuki AU - Sumikura H AD - Department of Neuropathology (Brain Bank for Aging Research), Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan. FAU - Kumasaka, Toshio AU - Kumasaka T AD - Department of Pathology, Japanese Red Cross Medical Center, Tokyo, Japan. FAU - Murayama, Shigeo AU - Murayama S AD - Department of Neuropathology (Brain Bank for Aging Research), Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan. FAU - Ishizu, Akihiko AU - Ishizu A AD - Faculty of Health Sciences, Hokkaido University, Sapporo, Japan. FAU - Shimizu, Akira AU - Shimizu A AD - Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan. FAU - Sugihara, Takahiko AU - Sugihara T AD - Department of Rheumatology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan. FAU - Arai, Tomio AU - Arai T AD - Department of Pathology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan. AD - Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan. LA - eng PT - Case Reports DEP - 20160718 PL - Australia TA - Pathol Int JT - Pathology international JID - 9431380 RN - 0 (Histones) RN - 29VT07BGDA (Citrulline) SB - IM MH - Aged MH - Autopsy MH - Citrulline MH - *Extracellular Traps MH - Histones/*metabolism MH - Humans MH - Male MH - Microscopic Polyangiitis/*pathology MH - Neutrophils/*pathology OTO - NOTNLM OT - citrullinated histone H3 OT - elderly OT - microscopic polyangiitis OT - myeloperoxidase-antineutrophil cytoplasmic antibody OT - neutrophil extracellular trap EDAT- 2016/07/19 06:00 MHDA- 2017/03/18 06:00 CRDT- 2016/07/19 06:00 PHST- 2015/12/30 00:00 [received] PHST- 2016/04/26 00:00 [revised] PHST- 2016/05/28 00:00 [accepted] PHST- 2016/07/19 06:00 [entrez] PHST- 2016/07/19 06:00 [pubmed] PHST- 2017/03/18 06:00 [medline] AID - 10.1111/pin.12434 [doi] PST - ppublish SO - Pathol Int. 2016 Aug;66(8):466-71. doi: 10.1111/pin.12434. Epub 2016 Jul 18.