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TNF-α 等位基因变异/单倍型对印度女性生殖道感染的功能影响。

Functional impact of allelic variations/haplotypes of TNF-α on reproductive tract infections in Indian women.

机构信息

Division of Molecular Genetics and Biochemistry, National Institute of Cancer Prevention and Research (ICMR), I-7, Sector 39, Noida, Uttar Pradesh, 20130, India.

Department of Microbiology, University College of Medical Science, Delhi University, Delhi, India.

出版信息

Sci Rep. 2021 Jan 12;11(1):627. doi: 10.1038/s41598-020-79963-y.

Abstract

The aim of the present study is to investigate the functional role of TNF-α single-nucleotide polymorphisms/haplotypes in an association with reproductive tract infections (RTIs) in symptomatic and asymptomatic women. A total of 850 consecutive subjects consisting of 400 cases and 450 healthy controls, were screened for RTIs, along with their risk factors and associated symptoms. The propensity score matching was performed to reduce the confounding bias arise owing to covariates and to balance the data between two groups. A total of 211 pairs (1:1) have been created. Genotyping of rs1800629 (-308) and rs361525 (-238) SNPs of TNF-α was done by PCR-RFLP followed by sequencing. The functional implication of TNF-α SNPs in an association with RTIs was also checked by using ELISA. The frequency of -238A allele and -308A allele was found to be twofold (P < 0.0001) and threefold (P < 0.0001) higher in the presence of RTIs. AA haplotype emerged as a major player in an association with RTIs and elevated TNF-α expression. The present study revealed the functional role of rs1800629 (-308) and rs361525 (-238) of TNF-α in an association with RTIs. This information may be used to establish biomarkers for an inflammatory response during the persistence of RTIs.

摘要

本研究旨在探讨 TNF-α 单核苷酸多态性/单倍型在与有症状和无症状女性生殖道感染 (RTIs) 相关中的功能作用。共筛选了 850 例连续病例,包括 400 例病例和 450 例健康对照者,以确定 RTIs 及其危险因素和相关症状。采用倾向评分匹配法来减少因协变量引起的混杂偏差,并平衡两组之间的数据。共创建了 211 对(1:1)。采用 PCR-RFLP 后测序法对 TNF-α 的 rs1800629(-308)和 rs361525(-238)SNP 进行基因分型。还通过 ELISA 检查 TNF-αSNP 与 RTIs 相关的功能意义。在存在 RTIs 的情况下,-238A 等位基因和-308A 等位基因的频率分别高出两倍(P < 0.0001)和三倍(P < 0.0001)。AA 单倍型与 RTIs 和升高的 TNF-α表达密切相关。本研究揭示了 TNF-α 的 rs1800629(-308)和 rs361525(-238)在与 RTIs 相关中的功能作用。这些信息可能用于确定 RTIs 持续期间炎症反应的生物标志物。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2fe7/7803726/4efa7f47b673/41598_2020_79963_Fig1_HTML.jpg

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