Microbial translocation: translating simian immunodeficiency virus to HIV

Area of Science:

• Immunology
• Virology
• Infectious Diseases

Background:

• Microbial translocation, the passage of microbes or microbial products from the gut to systemic circulation, is a key factor in lentiviral infections.
• Persistent microbial translocation contributes to chronic immune activation, a hallmark of HIV and SIV pathogenesis.
• Understanding the mechanisms of microbial translocation is crucial for developing effective treatments.

Purpose of the Study:

• To review recent advances in understanding the causes and consequences of microbial translocation in HIV and SIV infections.
• To highlight the role of microbial translocation in driving aberrant immune activation and disease progression.
• To discuss the therapeutic potential of targeting microbial translocation.

Main Methods:

• Review of current literature on microbial translocation in lentiviral infections.
• Utilizing findings from studies involving simian immunodeficiency virus (SIV)-infected nonhuman primates.
• Analysis of data on the immunological impact of translocating microbes.

Main Results:

• Persistent microbial translocation exacerbates immune activation, contributing to pathogenesis and mortality in HIV/SIV.
• Studies in SIV-infected nonhuman primates demonstrate the significant immunologic burden imposed by translocating microbes.
• Therapeutic strategies aimed at reducing microbial translocation show promise.

Conclusions:

• Insights into the source and identity of translocating microbes are advancing the development of adjunct therapeutics.
• Targeting microbial translocation represents a promising strategy to improve outcomes for individuals with HIV and SIV.
• Continued research is essential to fully elucidate mechanisms promoting microbial dissemination and to optimize therapeutic interventions.