HIV Infection, Chromosome Instability, and Micronucleus Formation

Area of Science:

• Genetics
• Virology
• Immunology

Background:

• Genome integrity is essential for cellular function and preventing age-related diseases like cancer.
• Chromosome instability arises from various factors, including viral infections, but their impact on aberrations like micronuclei is understudied.
• Human immunodeficiency virus (HIV) infection, though manageable with antiretroviral therapy (ART), is linked to chronic inflammation and accelerated aging.

Purpose of the Study:

• To review existing studies on genomic instability, specifically micronucleus formation, in the context of HIV infection.
• To explore the mechanisms by which HIV contributes to chromosome instability.
• To discuss the implications of HIV-associated genomic instability for immunosenescence and age-related diseases.

Main Methods:

• Literature review of studies assessing genomic instability via micronucleus assays in HIV-infected individuals.
• Analysis of research investigating the direct and indirect effects of HIV and ART on chromosomal integrity.
• Synthesis of findings linking HIV, inflammation, immunosenescence, and age-related conditions.

Main Results:

• HIV infection can directly induce chromosome instability through viral protein interactions with host DNA.
• Indirect mechanisms, including chronic inflammation and antiretroviral therapy (ART) side effects, also contribute to genomic instability in HIV patients.
• A significant association exists between HIV infection, accelerated aging (immunosenescence), and increased risk of age-related diseases.

Conclusions:

• HIV infection poses a risk to genome integrity, necessitating monitoring for chromosome instability in affected individuals.
• Lifestyle interventions, such as minimizing genotoxin exposure and adopting antioxidant-rich diets, are advisable.
• Further therapeutic strategies targeting chronic inflammation in HIV infection are crucial to mitigate associated health risks.