Interactions between human immunodeficiency virus and human endogenous retroviruses

Area of Science:

• Virology
• Immunology
• Genetics

Background:

• Human immunodeficiency virus (HIV), a Lentivirus, infects CD4+ T cells, leading to immune dysfunction and Acquired Immunodeficiency Syndrome (AIDS).
• Human endogenous retroviruses (HERVs) constitute approximately 8% of the human genome and are ancient retroviral sequences integrated into host DNA.
• Persistent challenges in HIV management include drug resistance, poor immune reconstitution (PIR), and viral reservoirs, even with antiretroviral therapy.

Purpose of the Study:

• To explore the intricate relationship between HIV infection and the human endogenous retrovirus (HERV) landscape.
• To investigate the potential involvement of HERVs in the pathogenesis of poor immune reconstitution (PIR) observed in some HIV patients.
• To examine the possible role of HERVs in the establishment and maintenance of persistent HIV reservoirs.

Main Methods:

• Review of existing literature on HIV-HERV interactions.
• Analysis of genomic and immunological data related to HERV expression in HIV-infected individuals.
• Discussion of potential mechanisms underlying HERV involvement in HIV pathogenesis.

Main Results:

• HIV infection can alter the expression patterns of various HERVs.
• Specific HERV families may be associated with impaired immune responses and poor immune reconstitution (PIR).
• HERVs could contribute to the persistence of HIV reservoirs by modulating the immune microenvironment.

Conclusions:

• Understanding HIV-HERV interactions is crucial for addressing persistent challenges in HIV therapy.
• Targeting HERV pathways may offer novel therapeutic strategies to improve immune reconstitution and reduce HIV reservoirs.
• Further research is warranted to elucidate the precise mechanisms of HERV involvement in HIV pathogenesis and to develop targeted interventions.