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.

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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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