The Role of Platelet-Activating Factor in Chronic Inflammation, Immune Activation, and Comorbidities Associated with HIV Infection

AIDS Rev. 2015 Oct-Dec;17(4):191-201.

Abstract

With the advent of highly effective antiretroviral therapy, cardiovascular disease has become an important cause of morbidity and mortality among people with treated HIV-1, but the pathogenesis is unclear. Platelet-activating factor is a potent lipid mediator of inflammation that has immunomodulatory effects and a pivotal role in the pathogenesis of inflammatory disorders and cardiovascular disease. Limited scientific evidence suggests that the platelet-activating factor pathway may be a mechanistic link between HIV-1 infection, systemic inflammation, and immune activation that contribute to pathogenesis of chronic HIV-related comorbidities, including cardiovascular disease and HIV-associated neurocognitive disorders. In this review, we examine the mechanisms by which the cross-talk between HIV-1, immune dysregulation, inflammation, and perturbations in the platelet-activating factor pathway may directly affect HIV-1 immunopathogenesis. Understanding the role of platelet-activating factor in HIV-1 infection may pave the way for further studies to explore therapeutic interventions, such as diet, that can modify platelet-activating factor activity and use of platelet-activating factor inhibitors that might improve the prognosis of HIV-1 infected patients.

Publication types

  • Research Support, N.I.H., Extramural
  • Review

MeSH terms

  • AIDS Dementia Complex / immunology
  • AIDS Dementia Complex / physiopathology
  • AIDS Dementia Complex / prevention & control*
  • Antiretroviral Therapy, Highly Active*
  • Cardiovascular Diseases / immunology
  • Cardiovascular Diseases / physiopathology
  • Cardiovascular Diseases / prevention & control*
  • Combined Modality Therapy
  • Comorbidity
  • Disease Progression
  • Feeding Behavior
  • HIV Infections / immunology
  • HIV Infections / physiopathology
  • HIV Infections / therapy*
  • Humans
  • Inflammation / immunology
  • Inflammation / physiopathology
  • Inflammation / therapy*
  • Molecular Targeted Therapy
  • Platelet Activating Factor / therapeutic use*

Substances

  • Platelet Activating Factor