Frequency of autoantibodies and correlation with HLA-DRB1 genotype in sporadic inclusion body myositis (s-IBM): a population control study

Journal of Neuroimmunology
A Rojana-udomsartF L Mastaglia

Abstract

The frequency of myositis-associated and myositis-specific autoantibodies (AAb) was compared in 51 s-IBM patients and a population control group. Non-organ specific AAb (ANA, anti-Ro52, anti-Ro60, anti-La, anti-RNP) but not anti-thyroid peroxidase, anti-tissue transglutaminase or myositis-specific antibodies, were more frequent in s-IBM patients, and 14/51 (27%) had another autoimmune disease (Sjögren's syndrome, thyroiditis, psoriasis, vitiligo). The presence of AAb did not correlate with carriage of HLA-DRB1*0301, but there was a negative correlation between ANA/anti-Ro52 and carriage of HLA-DRB1*1301. The findings in this cohort confirm that patients with sIBM do not show evidence of a muscle-specific humoral immune process but have an increased frequency of non-organ specific AAb and other autoimmune disorders.

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Citations

Jan 7, 2014·La Revue de médecine interne·Y Allenbach, O Benveniste
Nov 26, 2015·Journal of Internal Medicine·Z Betteridge, N McHugh
Dec 17, 2014·Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia·Frank L Mastaglia, Merrilee Needham
Jul 15, 2020·International Journal of Rheumatic Diseases·Anu BalakrishnanLatika Gupta
Aug 24, 2018·Neurotherapeutics : the Journal of the American Society for Experimental NeuroTherapeutics·Elie NaddafMazen M Dimachkie
Oct 21, 2018·Neurotherapeutics : the Journal of the American Society for Experimental NeuroTherapeutics·Emer R McGrathAnthony A Amato
Sep 18, 2021·Rheumatology·Elie NaddafTeerin Liewluck

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