Association of miR-181c/d gene locus rs8108402 C/T polymorphism with susceptibility to Kawasaki disease in Chinese children

Meiqing Yao; Qin He; Manqiong Yang; Zhixiang Wu; Ying Li; Min Kong; Zhijuan Kang; Lu Yi; Yanan Hu; Lihua Huang; Zhuoying Li; Zuocheng Yang

doi:10.3389/fped.2022.899779

Association of miR-181c/d gene locus rs8108402 C/T polymorphism with susceptibility to Kawasaki disease in Chinese children

Front Pediatr. 2022 Aug 9:10:899779. doi: 10.3389/fped.2022.899779. eCollection 2022.

Authors

Meiqing Yao¹, Qin He¹, Manqiong Yang², Zhixiang Wu¹, Ying Li¹, Min Kong¹, Zhijuan Kang¹, Lu Yi¹, Yanan Hu¹, Lihua Huang³, Zhuoying Li¹, Zuocheng Yang¹

Affiliations

¹ Department of Pediatrics, Third Xiangya Hospital of Central South University, Changsha, China.
² Department of Pediatrics, Hunan Provincial People's Hospital, Changsha, China.
³ Center for Experimental Medicine, The Third Xiangya Hospital of Central South University, Changsha, China.

Abstract

Background: Kawasaki disease (KD) is an acute systemic vasculitis of unknown etiology. The rs8108402 C/T single nucleotide polymorphism (SNP) is located in the promoter region of miR-181-c/d gene and the intron of Nanos3 gene. The miR-181 family contributes to the pathogenesis of cardiovascular and inflammatory disorders, while Nanos3 is involved in DNA transcription regulation and cell proliferation. However, no studies have examined the association between miR-181c/d and Nanos3 polymorphisms and the susceptibility and progression of KD.

Objective: The purpose of our study is to examine the association of miR-181c/miR-181d/Nanos3 gene locus rs8108402 C/T polymorphism with KD susceptibility, intravenous immunoglobulin (IVIG) responsiveness, and the development of coronary artery lesions (CAL).

Methods: Peripheral blood specimens from 100 children with KD and 100 healthy children were collected. The polymorphism of rs8108402 C/T was detected using polymerase chain reaction-sequencing-based typing technique.

Results: There were statistically significant differences in C and T allele frequency distributions between the KD group and healthy controls for the polymorphic site rs8108402 C/T (P = 0.002). The distribution of the genotypes CC, CT, and TT also presented statistical significant difference between the KD and control groups (P = 0.003). Compared to the rs8108402 C allele, the T allele was associated with increased KD susceptibility (OR = 2.080, 95% CI = 1.317∼3.283). However, there were no significant associations discovered between the rs8108402 C/T polymorphism and CAL formation or IVIG unresponsiveness in the study.

Conclusion: SNP rs8108402 C/T located in the miR-181c/d promoter and Nanos3 intronic region is associated with susceptibility to Kawasaki disease but not with the development of coronary artery lesions or IVIG unresponsiveness in Chinese children.

Keywords: Kawasaki disease; Nanos3; coronary artery lesions; miR-181; single nucleotide polymorphisms.