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Mitochondrial dysfunction in AIDS and its treatment.

Mariana Gerschenson1, Kees Brinkman

  • 1Hawaii AIDS Clinical Research Program, John A. Burns School of Medicine, University of Hawaii at Manoa, 3675 Kilauea Avenue, Young Building, 5th Floor, Leahi Hospital, Honolulu, HI 96816, USA. gerschen@hawaii.edu

Mitochondrion
|August 27, 2005
PubMed
Summary

Long-term anti-retroviral therapy (ART) for HIV can cause complex mitochondrial toxicities. These effects involve multiple mechanisms beyond NRTI inhibition, requiring new therapeutic strategies.

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Area of Science:

  • Mitochondrial Pathogenesis
  • Virology
  • Pharmacology

Background:

  • Advances in anti-retroviral therapy (ART) have significantly improved survival for individuals with human immunodeficiency virus (HIV).
  • ART regimens commonly include nucleoside reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs), and/or protease inhibitors (PIs).
  • Long-term exposure to ART and HIV infection itself are associated with various mitochondrial toxicities.

Purpose of the Study:

  • To explore the complex etiology of mitochondrial pathogenesis in HIV patients on ART.
  • To investigate mechanisms beyond NRTI-induced DNA polymerase-gamma inhibition.
  • To understand the role of HIV per se in mitochondrial dysfunction.

Main Methods:

  • Review of current literature on ART-associated mitochondrial toxicities.

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  • Analysis of proposed mechanisms of mitochondrial pathogenesis.
  • Examination of existing therapeutic interventions.

    • Main Results:

    • Mitochondrial toxicities observed in HIV patients include myopathies, neuropathy, myelopoiesis, pancreatitis, lactic acidosis, hepatic steatosis, and lipodystrophy.
    • The pathogenesis is more complex than previously thought, involving multiple mechanisms.
    • HIV infection itself contributes to mitochondrial dysfunction, independent of ART.

    Conclusions:

    • Current understanding of mitochondrial pathogenesis in HIV/ART requires a multifactorial approach.
    • Therapeutic strategies may need to address both ART-related and HIV-related mitochondrial damage.
    • Further research into novel mitochondrial co-factors and therapeutic interventions is warranted.