PMID- 24894810 OWN - NLM STAT- MEDLINE DCOM- 20150105 LR - 20221207 IS - 1471-5945 (Electronic) IS - 1471-5945 (Linking) VI - 14 DP - 2014 Jun 4 TI - HLA class II alleles may influence susceptibility to adult dermatomyositis and polymyositis in a Han Chinese population. PG - 9 LID - 10.1186/1471-5945-14-9 [doi] AB - BACKGROUND: Polymyositis (PM) and dermatomyositis (DM) are idiopathic inflammatory myopathies. Genetic variability in human leukocyte antigen (HLA) genes plays an important role in the pathogenesis of PM and DM. However, few studies on the subject in Chinese populations have been reported thus far. METHODS: We studied the influence of HLA polymorphisms on DM and PM susceptibility by analyzing HLA-DRB1, HLA-DQA1, and HLA-DQB1 alleles in 71 adult DM patients, 20 adult PM patients, and 113 controls in a Han Chinese population. RESULTS: A positive association was found between HLA-DQA1*0104 and DM (p = 0.01; corrected p (pcorr) NS; odds ratio (OR) = 2.58; 95% confidence interval (CI): 1.18-5.64), while an inverse correlation was noted between HLA-DQB1*0303 and myositis patients with interstitial lung inflammation (p = 0.01; pcorr NS; OR = 0.25; 95% CI: 0.07-0.73). A positive relationship was also observed between HLA-DRB1*07 and DM (p = 0.01; pcorr NS; OR = 2.26; 95% CI: 1.12-4.59), while HLA-DRB1*03 seems to be protective against DM (p = 0.01; pcorr NS; OR = 0.26; 95% CI: 0.06-0.81). The lung complication was closely associated with HLA-DRB1*04 (p = 0.01; pcorr NS; OR = 2.82; 95% CI: 1.15-6.76) and HLA-DRB1*12 (p = 0.02; pcorr NS; OR = 2.52; 95% CI: 1.02-6.07). The frequency of HLA-DRB1*07 was significantly higher among myositis patients with dysphagia than among controls (p = 0.01; pcorr NS; OR = 4.78; 95% CI: 1.03-24.42). The putative haplotype DRB1*07-DQA1*01-DQB1*02 was positively correlated with DM (p = 0.03; pcorr NS; OR = 2.90; 95% CI: 1.02-8.93) and the lung complication (p = 0.02; pcorr NS; OR = 3.45; 95% CI: 1.04-11.58). CONCLUSIONS: Our results demonstrate that HLA alleles may be involved in susceptibility to adult DM and PM in the Han Chinese population. FAU - Gao, Xiang AU - Gao X FAU - Han, Lei AU - Han L FAU - Yuan, Lan AU - Yuan L FAU - Yang, Yongchen AU - Yang Y FAU - Gou, Guimei AU - Gou G FAU - Sun, Hengjuan AU - Sun H FAU - Lu, Ling AU - Lu L AD - Departments of Rheumatology and Occupational Medicine, Huashan Hospital of Fudan University, Shanghai, China. huashanlvling@sina.com. FAU - Bao, Liming AU - Bao L LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140604 PL - England TA - BMC Dermatol JT - BMC dermatology JID - 100968541 RN - 0 (HLA-DQ alpha-Chains) RN - 0 (HLA-DQ beta-Chains) RN - 0 (HLA-DQA1 antigen) RN - 0 (HLA-DQB1 antigen) RN - 0 (HLA-DRB1 Chains) RN - 0 (Histocompatibility Antigens Class II) SB - IM MH - Adult MH - Aged MH - Alleles MH - Asian People/*genetics MH - Dermatomyositis/*genetics MH - Female MH - Gene Frequency MH - *Genetic Predisposition to Disease MH - HLA-DQ alpha-Chains/genetics MH - HLA-DQ beta-Chains/genetics MH - HLA-DRB1 Chains/genetics MH - Histocompatibility Antigens Class II/*genetics MH - Humans MH - Male MH - Middle Aged MH - Polymorphism, Genetic MH - Polymyositis/*genetics MH - Risk Factors PMC - PMC4062285 EDAT- 2014/06/05 06:00 MHDA- 2015/01/06 06:00 PMCR- 2014/06/04 CRDT- 2014/06/05 06:00 PHST- 2013/11/18 00:00 [received] PHST- 2014/05/28 00:00 [accepted] PHST- 2014/06/05 06:00 [entrez] PHST- 2014/06/05 06:00 [pubmed] PHST- 2015/01/06 06:00 [medline] PHST- 2014/06/04 00:00 [pmc-release] AID - 1471-5945-14-9 [pii] AID - 10.1186/1471-5945-14-9 [doi] PST - epublish SO - BMC Dermatol. 2014 Jun 4;14:9. doi: 10.1186/1471-5945-14-9.