Abstract
Classic Kaposi sarcoma is a type of vascular proliferative inflammatory disease. Previous studies have reported significant associations between microRNAs expression and the development of classic Kaposi sarcoma. Here, we conducted a case-control study to investigate the association between miR-146a and miR-149 genetic polymorphisms and risk of classic Kaposi sarcoma in a Chinese population. Both classic Kaposi sarcoma patients and healthy controls were recruited between December 2013 and October 2015. Genotyping of miR-146a and miR-149 was performed by polymerase chain reaction-coupled with restriction fragment length polymorphism. Results showed that the GG genotype of miR-146a was associated with increased risk to classic Kaposi sarcoma (OR = 6.00, 95%CI = 1.19-30.12), as compared with the CC genotype. In the recessive model, we found that the GG genotype carried a 4.55-fold increased risk to classic Kaposi sarcoma as compared with the CC + CG genotype (OR = 2.06, 95%CI = 1.04-20.29). In conclusion, our study demonstrated that miR-146a, but not miR-149 polymorphism, is associated with risk to classic Kaposi sarcoma in the Chinese population.
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