Association of FCGR2A rs1801274 polymorphism with susceptibility to autoimmune diseases: A meta-analysis

// Chang’e Zhang 1,* , Wenju Wang 2,* , Hong’e Zhang 3,* , Lulu Wei 4 and Shuping Guo 4 1 Department of Dermatology, Zhengzhou Children’s Hospital, Henan, China 2 Department of Dermatology, The Second People’s Hospital in Chengdu, Sichuan, China 3 Department of Medicine, Xiangfu District Hospital of Traditional Chinese Medicine, Kaifeng, Henan, China 4 Department of Dermatology, The First Affiliated Hospital, Shanxi Medical University, Taiyuan, Shanxi, China * These authors have contributed equally to this work Correspondence to: Chang’e Zhang, email: // Keywords : autoimmune diseases, FCGR2A, polymorphism, susceptibility, meta-analysis, Immunology and Microbiology Section, Immune response, Immunity Received : February 23, 2016 Accepted : May 28, 2016 Published : June 05, 2016 Abstract Objectives: The aim of this meta-analysis was to estimate the association between the FCGR2A rs1801274 polymorphism and the susceptibility to autoimmune diseases more precisely. Methods: A meta-analysis was conducted on the association between the FCGR2A gene variants and ADs by allelic contrast, homozygote contrast, the recessive model, and the dominant model. Results: A total of 17 studies with 30 comparisons in different populations and genotype-methods were available for this meta-analysis, including 10 Kawasaki disease (KD), 7 Ulcerative colitis (UC), 6 Crohn’s disease (CD), 3 Rheumatoid arthritis (RA), 2 Systemic lupus erythematosus (SLE), 1 Autoimmune thyroid disease (ATD) and 1 diabetes mellitus type 1 (T1D). A significant association between FCGR2A rs1801274 polymorphism were found in KD (OR = 1.409, P < 0.001) and UC (OR = 1.237, P < 0.001). A overall meta-analysis increased risk of AD significant association between FCGR2A rs1801274 gene polymorphism and ADs under allelic (OR = 1.378, P =0.000), homozygous (OR: 1.866, P =0.001), dominant (OR = 1.667, P = 0.000) and recessive (OR = 1.434, P =0.000) in Asian population. Meanwhile, a decreased risk of AD was detected in the allelic (OR= 0.882, P = 0.011), homozygous (OR = 0.777, P = 0.013), dominant (OR = 0.850, P = 0.032) and recessive (OR = 0.840, P = 0.048) in African-American population. Conclusions: This meta-analysis demonstrates that the FCGR2A rs1801274 G-allele confers susceptibility to KD and UC. Data also suggests that the FCGR2A rs1801274 polymorphism may be associated with the susceptibility of multiple ADs in Asian and African-American populations.