Minding the gap in HIV host genetics: opportunities and challenges

Area of Science:

• Genomics
• Human genetics
• HIV research

Background:

• Genome-wide association studies (GWAS) have identified genetic variants linked to HIV outcomes.
• Current GWAS predominantly focus on European cohorts, limiting generalizability.
• Human Leukocyte Antigen (HLA) associations with HIV are known to be population-specific.

Purpose of the Study:

• To highlight the need for increased diversity in GWAS for HIV research.
• To address health disparities arising from a lack of representation in genomic studies.
• To emphasize the importance of multiethnic cohorts for advancing precision medicine.

Main Methods:

• Review of existing GWAS findings in HIV research.
• Analysis of the impact of cohort diversity on genetic variant identification.
• Discussion of leveraging large, multiethnic datasets (e.g., UK Biobank, All of Us).

Main Results:

• Lack of diversity in GWAS leads to potential disadvantages for non-European individuals in precision medicine.
• Population-specific genetic variants, particularly HLA associations, necessitate diverse study populations.
• Existing large, multiethnic cohorts offer opportunities to expand genomic research.

Conclusions:

• Increased diversity in GWAS is essential for accurate genetic insights across populations.
• Addressing underrepresentation in genomic research can mitigate health disparities.
• Utilizing diverse cohorts will improve the efficacy of precision medicine for HIV and other diseases.