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.

Abstract

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.

Related Concept Videos

Conservation of Small Populations02:04

Conservation of Small Populations

Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
16.7K
What is Population Genetics?01:25

What is Population Genetics?

A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
64.6K
Population Growth00:57

Population Growth

Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
28.2K
Magnetic Susceptibility and Permeability01:31

Magnetic Susceptibility and Permeability

In linear magnetic materials, like paramagnets and diamagnets, magnetization is proportional to the magnetic field intensity. The constant of proportionality, a dimensionless number, is called magnetic susceptibility. The value of the susceptibility depends on the type of material.
When diamagnetic materials are placed under an external magnetic field, the moments opposite to the field are induced. Hence, the susceptibility for diamagnets has a minimal negative value of 10-5–10-6. Since...
2.4K
Single Nucleotide Polymorphisms-SNPs01:05

Single Nucleotide Polymorphisms-SNPs

A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
18.0K
Association Areas of the Cortex01:21

Association Areas of the Cortex

Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
9.2K