MiR-423 Coding Region Genetic Polymorphism rs8067576 May Associate With the Risk of Developing Recurrent Spontaneous Abortion: A Case-Control Study in a Chinese Han Population

IF 2.5 3区 医学 Q3 IMMUNOLOGY
Xing Su, Wan-Ying Yu, Ming-Jia Zhao, Yi Hu, Ying Li, Xue-Qin Wang, Lu Zhang, Xiao-Dan Lv, Xu Ma, Hong-Fei Xia
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引用次数: 0

Abstract

Background

Our previous study has identified an association of a single nucleotide polymorphism (SNP) in the miR-423 gene with recurrent spontaneous abortion (RSA). The presence of additional RSA-linked SNPs in the miR-423 gene remains unclear.

Methods

We evaluated polymorphisms in the coding region of miR-423 in Han Chinese women with unexplained RSA (URSA).

Results

Significant differences were observed in the genotype and allele distribution of miR-423 rs8067576 between patients with RSA and control subjects. A robust association was found between an elevated RSA incidence and the presence of A/T heterozygosity in miR-423 rs8067576, with an odds ratio (OR) of 1.76 (95% confidence interval [CI]: 1.26 to 2.47, p = 0.000292). The rare allele T in the pre-miR-423 sequence was shown to cause a discernible structural change and a reduced ΔG value. Compared with the A allele, the rare T allele promoted cell proliferation. Furthermore, compared with the T allele, the A allele in the rs8067576 polymorphism exhibited a greater ability to inhibit the translation of proliferation-associated 2 group 4 (Pa2g4), which is the functional target of miR-423. The T allele in the rs8067576 polymorphism was also found to be more susceptible to the inhibition of cell proliferation induced by mifepristone.

Conclusions

The rs8067576 A > T polymorphism in the miR-423 gene may serve as a genetic susceptibility locus for RSA. This polymorphism appears to contribute to an increased risk of acquiring URSA in humans by destroying mature miR-423.

MiR-423编码区遗传多态性rs8067576可能与发生复发性自然流产的风险相关:中国汉族人群的病例对照研究
背景:我们之前的研究已经确定了miR-423基因的单核苷酸多态性(SNP)与复发性自然流产(RSA)的关联。miR-423基因中是否存在其他与rsa相关的snp尚不清楚。方法:我们评估了中国汉族女性不明原因RSA (URSA)中miR-423编码区的多态性。结果:RSA患者与对照组miR-423 rs8067576基因型及等位基因分布存在显著差异。我们发现miR-423 rs8067576中RSA发生率升高与A/T杂合性存在显著相关,比值比(OR)为1.76(95%可信区间[CI]: 1.26至2.47,p = 0.000292)。pre-miR-423序列中罕见的等位基因T被证明会导致明显的结构变化和ΔG值降低。与A等位基因相比,罕见的T等位基因促进细胞增殖。此外,与T等位基因相比,rs8067576多态性中的A等位基因表现出更强的抑制增殖相关2组4 (Pa2g4)翻译的能力,而Pa2g4是miR-423的功能靶点。rs8067576多态性中的T等位基因也更容易受到米非司酮诱导的细胞增殖抑制。结论:miR-423基因rs8067576 A > T多态性可能是RSA的遗传易感性位点。这种多态性似乎通过破坏成熟的miR-423而增加了人类获得URSA的风险。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
6.20
自引率
5.60%
发文量
314
审稿时长
2 months
期刊介绍: The American Journal of Reproductive Immunology is an international journal devoted to the presentation of current information in all areas relating to Reproductive Immunology. The journal is directed toward both the basic scientist and the clinician, covering the whole process of reproduction as affected by immunological processes. The journal covers a variety of subspecialty topics, including fertility immunology, pregnancy immunology, immunogenetics, mucosal immunology, immunocontraception, endometriosis, abortion, tumor immunology of the reproductive tract, autoantibodies, infectious disease of the reproductive tract, and technical news.
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