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HIV-1 Genetic Variability and Clinical Implications.

Maria Mercedes Santoro1, Carlo Federico Perno

  • 1Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy.

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Human immunodeficiency virus (HIV) non-B subtypes are increasing globally and may progress disease faster. Genetic differences in HIV-1 non-B subtypes influence treatment effectiveness and drug resistance development.

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Area of Science:

  • Virology
  • Infectious Diseases
  • Public Health

Background:

  • Antiretroviral therapy (ART) has transformed HIV management, yet global control remains challenging.
  • HIV-1 non-B subtype infections are rising in regions previously dominated by subtype B.
  • Subtypes C and D are associated with more aggressive disease progression.

Purpose of the Study:

  • To review the genetic diversity of HIV-1.
  • To explore the implications of this diversity on disease spread.
  • To assess impacts on antiretroviral therapy effectiveness and drug resistance.

Main Methods:

  • Literature review of studies on HIV-1 genetic diversity.
  • Analysis of data on disease progression across different HIV-1 subtypes.
  • Examination of factors influencing antiretroviral resistance in non-B subtypes.

Main Results:

  • HIV-1 non-B subtypes are increasingly prevalent globally.
  • Certain non-B subtypes exhibit more rapid disease progression.
  • Differences in drug resistance acquisition rates among non-B subtypes are evident.
  • Subtype-specific genetic factors contribute to varied resistance patterns.

Conclusions:

  • HIV-1 genetic diversity significantly impacts disease dynamics and treatment outcomes.
  • Understanding clade-specific peculiarities is crucial for effective HIV-1 management.
  • Further research is needed to optimize therapies for diverse HIV-1 subtypes.