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Updated: Jan 26, 2026

Genotypic Inference of HIV-1 Tropism Using Population-based Sequencing of V3
Published on: December 27, 2010
Association between polymorphisms in MRE11 and HIV-1 susceptibility and AIDS progression in a northern Chinese MSM
Chang Liu1, Yuandong Qiao1, Lidan Xu1
1Laboratory of Medical Genetics, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, China.
Background:
Previous studies reported that DNA damage repair (DDR) genes may play an important role in HIV-1 infection. The MRE11 gene, a member of the MRN complex, plays an essential part in the homologous recombination pathway, which is one of the classical DDR pathways. Previous reports have demonstrated that MRE11 has an effect on HIV-1 replication. However, the role of SNPs in the MRE11 gene and their impact on HIV-1 infection and AIDS progression remain unknown.
Methods:
In this study, 434 MSM HIV-1-infected patients in northern China and 431 age-matched healthy controls were enrolled. Five SNPs (rs2155209, rs10831234, rs13447720, rs601341 and rs11020803) at the MRE11 gene were genotyped. Another series of cases (409 MSM HIV-1-infected patients) and controls (403 age-matched healthy males) were recruited as the validation set.
Results:
In our study, rs10831234 showed differences in allele frequencies between cases and controls (P = 0.005). Additionally, there was an association between rs10831234 and HIV-1 infection susceptibility in dominant and additive models (P = 0.005 and P = 0.006, respectively). All significant associations were replicated in the validation set, and the associations were still significant after Bonferroni correction for multiple testing when the two data sets were combined. Furthermore, in haplotype association analyses between the case and control groups, the frequencies of the haplotypes Crs11020803Crs10831234 and Trs11020803Trs10831234 showed significant differences (P = 0.0181 and P = 0.0068, respectively).
Conclusions:
We demonstrated that the MRE11 rs10831234-T allele may confer increased risk of HIV-1 infection.
Insights
The MRE11 gene plays a role in DNA damage repair and HIV-1 infection. A specific single nucleotide polymorphism (SNP), rs10831234, in the MRE11 gene is associated with increased susceptibility to HIV-1 infection in men who have sex with men.
Area of Science:
- Genetics
- Immunology
- Virology
Background:
- DNA damage repair (DDR) genes are implicated in HIV-1 infection.
- The MRE11 gene, crucial for homologous recombination and DNA repair, affects HIV-1 replication.
- The role of MRE11 single nucleotide polymorphisms (SNPs) in HIV-1 infection and AIDS progression is not well understood.
Purpose of the Study:
- To investigate the association between MRE11 gene SNPs and HIV-1 infection susceptibility.
- To explore the potential impact of these SNPs on AIDS progression.
Main Methods:
- Genotyping of five MRE11 SNPs (rs2155209, rs10831234, rs13447720, rs601341, rs11020803) in 434 HIV-1 infected MSM and 431 healthy controls.
- Validation of significant findings in an independent cohort of 409 HIV-1 infected MSM and 403 healthy controls.
- Haplotype association analyses were performed.
Main Results:
- The MRE11 rs10831234 SNP showed significant allele frequency differences between HIV-1 infected cases and controls (P=0.005).
- Association between rs10831234 and HIV-1 infection susceptibility was confirmed in dominant and additive models (P=0.005, P=0.006).
- Significant associations were replicated in the validation set and remained significant after Bonferroni correction. Haplotypes Crs11020803Crs10831234 and Trs11020803Trs10831234 showed significant differences.
Conclusions:
- The MRE11 rs10831234-T allele is associated with an increased risk of HIV-1 infection.
- This finding highlights the potential role of MRE11 genetic variations in HIV-1 susceptibility.
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