Clinicopathologic features of myositis patients with CD8-MHC-1 complex pathology.

Autor:	Ikenaga C; From the Department of Neurology (C.I., A.K., K.T., N.U., M.H.M., Y.N., H.I., S.T., J.S.), Graduate School of Medicine, the University of Tokyo; Division of Neurology (M.K., K.K.), Department of Internal Medicine, National Defense Medical College, Saitama; Department of Neurology (A.H.), National Center for Global Health and Medicine; Department of Neurology (M.H.M.), Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital; Okinaka Memorial Institute For Medical Research (M.H.M.); and Department of Neurology (J.G.), International University of Health and Welfare, Mita Hospital, Tokyo, Japan., Kubota A; From the Department of Neurology (C.I., A.K., K.T., N.U., M.H.M., Y.N., H.I., S.T., J.S.), Graduate School of Medicine, the University of Tokyo; Division of Neurology (M.K., K.K.), Department of Internal Medicine, National Defense Medical College, Saitama; Department of Neurology (A.H.), National Center for Global Health and Medicine; Department of Neurology (M.H.M.), Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital; Okinaka Memorial Institute For Medical Research (M.H.M.); and Department of Neurology (J.G.), International University of Health and Welfare, Mita Hospital, Tokyo, Japan., Kadoya M; From the Department of Neurology (C.I., A.K., K.T., N.U., M.H.M., Y.N., H.I., S.T., J.S.), Graduate School of Medicine, the University of Tokyo; Division of Neurology (M.K., K.K.), Department of Internal Medicine, National Defense Medical College, Saitama; Department of Neurology (A.H.), National Center for Global Health and Medicine; Department of Neurology (M.H.M.), Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital; Okinaka Memorial Institute For Medical Research (M.H.M.); and Department of Neurology (J.G.), International University of Health and Welfare, Mita Hospital, Tokyo, Japan., Taira K; From the Department of Neurology (C.I., A.K., K.T., N.U., M.H.M., Y.N., H.I., S.T., J.S.), Graduate School of Medicine, the University of Tokyo; Division of Neurology (M.K., K.K.), Department of Internal Medicine, National Defense Medical College, Saitama; Department of Neurology (A.H.), National Center for Global Health and Medicine; Department of Neurology (M.H.M.), Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital; Okinaka Memorial Institute For Medical Research (M.H.M.); and Department of Neurology (J.G.), International University of Health and Welfare, Mita Hospital, Tokyo, Japan., Uchio N; From the Department of Neurology (C.I., A.K., K.T., N.U., M.H.M., Y.N., H.I., S.T., J.S.), Graduate School of Medicine, the University of Tokyo; Division of Neurology (M.K., K.K.), Department of Internal Medicine, National Defense Medical College, Saitama; Department of Neurology (A.H.), National Center for Global Health and Medicine; Department of Neurology (M.H.M.), Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital; Okinaka Memorial Institute For Medical Research (M.H.M.); and Department of Neurology (J.G.), International University of Health and Welfare, Mita Hospital, Tokyo, Japan., Hida A; From the Department of Neurology (C.I., A.K., K.T., N.U., M.H.M., Y.N., H.I., S.T., J.S.), Graduate School of Medicine, the University of Tokyo; Division of Neurology (M.K., K.K.), Department of Internal Medicine, National Defense Medical College, Saitama; Department of Neurology (A.H.), National Center for Global Health and Medicine; Department of Neurology (M.H.M.), Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital; Okinaka Memorial Institute For Medical Research (M.H.M.); and Department of Neurology (J.G.), International University of Health and Welfare, Mita Hospital, Tokyo, Japan., Maeda MH; From the Department of Neurology (C.I., A.K., K.T., N.U., M.H.M., Y.N., H.I., S.T., J.S.), Graduate School of Medicine, the University of Tokyo; Division of Neurology (M.K., K.K.), Department of Internal Medicine, National Defense Medical College, Saitama; Department of Neurology (A.H.), National Center for Global Health and Medicine; Department of Neurology (M.H.M.), Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital; Okinaka Memorial Institute For Medical Research (M.H.M.); and Department of Neurology (J.G.), International University of Health and Welfare, Mita Hospital, Tokyo, Japan., Nagashima Y; From the Department of Neurology (C.I., A.K., K.T., N.U., M.H.M., Y.N., H.I., S.T., J.S.), Graduate School of Medicine, the University of Tokyo; Division of Neurology (M.K., K.K.), Department of Internal Medicine, National Defense Medical College, Saitama; Department of Neurology (A.H.), National Center for Global Health and Medicine; Department of Neurology (M.H.M.), Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital; Okinaka Memorial Institute For Medical Research (M.H.M.); and Department of Neurology (J.G.), International University of Health and Welfare, Mita Hospital, Tokyo, Japan., Ishiura H; From the Department of Neurology (C.I., A.K., K.T., N.U., M.H.M., Y.N., H.I., S.T., J.S.), Graduate School of Medicine, the University of Tokyo; Division of Neurology (M.K., K.K.), Department of Internal Medicine, National Defense Medical College, Saitama; Department of Neurology (A.H.), National Center for Global Health and Medicine; Department of Neurology (M.H.M.), Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital; Okinaka Memorial Institute For Medical Research (M.H.M.); and Department of Neurology (J.G.), International University of Health and Welfare, Mita Hospital, Tokyo, Japan., Kaida K; From the Department of Neurology (C.I., A.K., K.T., N.U., M.H.M., Y.N., H.I., S.T., J.S.), Graduate School of Medicine, the University of Tokyo; Division of Neurology (M.K., K.K.), Department of Internal Medicine, National Defense Medical College, Saitama; Department of Neurology (A.H.), National Center for Global Health and Medicine; Department of Neurology (M.H.M.), Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital; Okinaka Memorial Institute For Medical Research (M.H.M.); and Department of Neurology (J.G.), International University of Health and Welfare, Mita Hospital, Tokyo, Japan., Goto J; From the Department of Neurology (C.I., A.K., K.T., N.U., M.H.M., Y.N., H.I., S.T., J.S.), Graduate School of Medicine, the University of Tokyo; Division of Neurology (M.K., K.K.), Department of Internal Medicine, National Defense Medical College, Saitama; Department of Neurology (A.H.), National Center for Global Health and Medicine; Department of Neurology (M.H.M.), Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital; Okinaka Memorial Institute For Medical Research (M.H.M.); and Department of Neurology (J.G.), International University of Health and Welfare, Mita Hospital, Tokyo, Japan., Tsuji S; From the Department of Neurology (C.I., A.K., K.T., N.U., M.H.M., Y.N., H.I., S.T., J.S.), Graduate School of Medicine, the University of Tokyo; Division of Neurology (M.K., K.K.), Department of Internal Medicine, National Defense Medical College, Saitama; Department of Neurology (A.H.), National Center for Global Health and Medicine; Department of Neurology (M.H.M.), Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital; Okinaka Memorial Institute For Medical Research (M.H.M.); and Department of Neurology (J.G.), International University of Health and Welfare, Mita Hospital, Tokyo, Japan., Shimizu J; From the Department of Neurology (C.I., A.K., K.T., N.U., M.H.M., Y.N., H.I., S.T., J.S.), Graduate School of Medicine, the University of Tokyo; Division of Neurology (M.K., K.K.), Department of Internal Medicine, National Defense Medical College, Saitama; Department of Neurology (A.H.), National Center for Global Health and Medicine; Department of Neurology (M.H.M.), Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital; Okinaka Memorial Institute For Medical Research (M.H.M.); and Department of Neurology (J.G.), International University of Health and Welfare, Mita Hospital, Tokyo, Japan. jshimizu-tky@umin.ac.jp.
Jazyk:	angličtina
Zdroj:	Neurology [Neurology] 2017 Sep 05; Vol. 89 (10), pp. 1060-1068. Date of Electronic Publication: 2017 Aug 09.
DOI:	10.1212/WNL.0000000000004333
Abstrakt:	Objective: To determine the clinical features of myositis patients with the histopathologic finding of CD8-positive T cells invading non-necrotic muscle fibers expressing major histocompatibility complex class 1 (CD8-MHC-1 complex), which is shared by polymyositis (PM) and inclusion body myositis (IBM), in relation to the p62 immunostaining pattern of muscle fibers. Methods: All 93 myositis patients with CD8-MHC-1 complex who were referred to our hospital from 1993 to 2015 were classified on the basis of the European Neuromuscular Center (ENMC) diagnostic criteria for IBM (Rose, 2013) or PM (Hoogendijk, 2004) and analyzed. Results: The 93 patients included were 17 patients with PM, 70 patients with IBM, and 6 patients who neither met the criteria for PM nor IBM in terms of muscle weakness distribution (unclassifiable group). For these PM, IBM, and unclassifiable patients, their mean ages at diagnosis were 63, 70, and 64 years; autoimmune disease was present in 7 (41%), 13 (19%), and 4 (67%); hepatitis C virus infection was detected in 0%, 13 (20%), and 2 (33%); and p62 was immunopositive in 0%, 66 (94%), and 2 (33%), respectively. Of the treated patients, 11 of 16 PM patients and 4 of 6 p62-immunonegative patients in the unclassifiable group showed responses to immunotherapy, whereas all 44 patients with IBM and 2 p62-immunopositive patients in the unclassifiable group were unresponsive to immunotherapy. Conclusions: CD8-MHC-1 complex is present in patients with PM, IBM, or unclassifiable group. The data may serve as an argument for a trial of immunosuppressive treatment in p62-immunonegative patients with unclassifiable myositis. (© 2017 American Academy of Neurology.)
Databáze:	MEDLINE
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