PMID- 30767866 OWN - NLM STAT- MEDLINE DCOM- 20191008 LR - 20191008 IS - 0392-856X (Print) IS - 0392-856X (Linking) VI - 37 IP - 5 DP - 2019 Sep-Oct TI - Clinical features of thirty-two patients with anti-melanoma differentiation-associated gene 5 antibodies. PG - 803-807 AB - OBJECTIVES: To investigate the clinical characteristics of patients positive for anti-melanoma differentiation-associated gene 5 (MDA5) antibodies, and to analyse the potential pathogenesis of anti-MDA5 antibodies. METHODS: The clinical manifestations, serological tests, imaging features, treatments, and prognoses of 32 anti-MDA5 antibody-positive patients diagnosed in the Rheumatology and Immunology Department of the Second Affiliated Hospital of Chongqing Medical University from September 2015 to August 2018 were analysed. RESULTS: Of the 32 anti-MDA5 antibody-positive patients, eleven patients were clinically diagnosed with interstitial pneumonia with autoimmune features (IPAF), ten patients were diagnosed with clinically amyopathic dermatomyositis (CADM), six patients were diagnosed with dermatomyositis (DM) and five patients were diagnosed with anti-synthetase syndrome (ASS). Thirty patients had various degrees of pulmonary interstitial changes. The incidence of mortality, subcutaneous emphysema, hoarseness and dysphagia in patients who were positive for both anti-MDA5 and anti-Ro52 antibodies was significantly higher than in patients positive for only anti-MDA5 antibodies. The anti-MDA5 antibody-positive IPAF patients had a very poor prognosis, and mortality in these patients was as high as 54.55%. CONCLUSIONS: Anti-MDA5 antibodies are closely related to interstitial lung disease (ILD). The presence of both anti-MDA5 and anti-Ro52 antibodies indicates poor prognosis. FAU - Huang, Wenhan AU - Huang W AD - Department of Rheumatology and Immunology of the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China. FAU - Ren, Feifeng AU - Ren F AD - Department of Rheumatology and Immunology of the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China. FAU - Wang, Qian AU - Wang Q AD - Department of Rheumatology and Immunology, Peking Union Medical College Hospital, Beijing, China. FAU - Luo, Lei AU - Luo L AD - Department of Rheumatology and Immunology of the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China. FAU - Zhou, Jun AU - Zhou J AD - Department of Rheumatology and Immunology of the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China. FAU - Huang, Dongmei AU - Huang D AD - Department of Rheumatology and Immunology of the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China. FAU - Pan, Zhuma AU - Pan Z AD - Department of Endocrinology and Nephrology, The Seven People's Hospital, Chongqing, China. FAU - Tang, Lin AU - Tang L AD - Department of Rheumatology and Immunology of the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China. hopetang@163.com. LA - eng PT - Journal Article DEP - 20190211 PL - Italy TA - Clin Exp Rheumatol JT - Clinical and experimental rheumatology JID - 8308521 RN - 0 (Autoantibodies) RN - 0 (Biomarkers) RN - EC 3.6.1.- (IFIH1 protein, human) RN - EC 3.6.4.13 (Interferon-Induced Helicase, IFIH1) SB - IM MH - *Autoantibodies/blood MH - Biomarkers MH - Dermatomyositis/*immunology MH - Disease Progression MH - Humans MH - Interferon-Induced Helicase, IFIH1/*immunology MH - Lung Diseases, Interstitial/*immunology MH - Retrospective Studies EDAT- 2019/02/16 06:00 MHDA- 2019/10/09 06:00 CRDT- 2019/02/16 06:00 PHST- 2018/09/15 00:00 [received] PHST- 2018/12/03 00:00 [accepted] PHST- 2019/02/16 06:00 [pubmed] PHST- 2019/10/09 06:00 [medline] PHST- 2019/02/16 06:00 [entrez] AID - 13442 [pii] PST - ppublish SO - Clin Exp Rheumatol. 2019 Sep-Oct;37(5):803-807. Epub 2019 Feb 11.