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Area of Science:

  • Virology
  • Immunology
  • Infectious Diseases

Background:

  • Decades of antiretroviral therapy (ART) have suppressed human immunodeficiency virus (HIV) replication but have not eradicated the virus.
  • Persistent HIV reservoirs remain the primary barrier to achieving a functional cure or long-term remission.
  • Understanding HIV persistence mechanisms is critical for developing novel therapeutic strategies.

Purpose of the Study:

  • To review emerging insights into the complex mechanisms of HIV persistence.
  • To discuss the role of both latent reservoirs and immune-mediated persistence in shaping the viral reservoir.
  • To explore the implications of these findings for developing strategies towards an HIV cure.

Main Methods:

  • This review synthesizes current research on HIV persistence.
  • It examines the interplay between viral latency and immune escape mechanisms.
  • The discussion focuses on the immunological and virological factors contributing to reservoir maintenance.

Main Results:

  • HIV persistence is more complex than previously understood, involving transcriptionally silent proviruses and resistance to immune clearance.
  • Immune system interactions play a surprisingly significant role in maintaining the viral reservoir.
  • These persistent reservoirs are responsible for viral rebound upon therapy interruption.

Conclusions:

  • A deeper understanding of HIV persistence mechanisms, including immune evasion, is essential for advancing HIV cure research.
  • Targeting these complex persistence strategies may be key to achieving durable remission or eradication.
  • Future therapeutic approaches must address both latent reservoirs and immune-mediated persistence.