Microbial translocation and microbiome dysbiosis in HIV-associated immune activation

Alexander S. Zevin, Lyle McKinnon, Adam Burgener, Nichole R. Klatt

Research output: Contribution to journalReview article

76 Scopus citations

Abstract

Purpose of review This article describes the mechanisms and consequences of both microbial translocation and microbial dysbiosis in HIV infection. Recent findings Microbes in HIV are likely playing a large role in contributing to HIV pathogenesis, morbidities and mortality. Two major disruptions to microbial systems in HIV infection include microbial translocation and microbiome dysbiosis. Microbial translocation occurs when the bacteria (or bacterial products) that should be in the lumen of the intestine translocate across the tight epithelial barrier into systemic circulation, where they contribute to inflammation and pathogenesis. This is associated with poorer health outcomes in HIV-infected individuals. In addition, microbial populations in the gastrointestinal tract are also altered after HIV infection, resulting in microbiome dysbiosis, which further exacerbates microbial translocation, epithelial barrier disruption, inflammation and mucosal immune functioning. Summary Altered microbial regulation in HIV infection can lead to poor health outcomes, and understanding the mechanisms underlying microbial dysbiosis and translocation may result in novel pathways for therapeutic interventions.

Original languageEnglish (US)
Pages (from-to)182-190
Number of pages9
JournalCurrent Opinion in HIV and AIDS
Volume11
Issue number2
DOIs
StatePublished - Mar 1 2016

Keywords

  • HIV/AIDS
  • inflammation
  • microbial translocation
  • microbiome
  • mucosal

ASJC Scopus subject areas

  • Immunology
  • Hematology
  • Oncology
  • Oncology(nursing)
  • Infectious Diseases
  • Virology

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