The value of primate models for studying human immunodeficiency virus pathogenesis

Area of Science:

• Veterinary Medicine
• Virology
• Immunology

Background:

• Studying human immunodeficiency virus (HIV) infection is challenging due to ethical and practical limitations of experimenting with infected individuals.
• Animal models offer a controlled environment to investigate HIV pathogenesis and transmission dynamics.

Purpose of the Study:

• To review the utility of animal models, specifically simian immunodeficiency virus (SIV) and feline immunodeficiency virus (FIV), in understanding acquired immunodeficiency syndrome (AIDS).
• To highlight the importance of non-human primate models in AIDS research.

Main Methods:

• Review of existing literature on lentiviruses, including SIV, FIV, and simian-human immunodeficiency virus (SHIV).
• Comparative analysis of lentiviral subgenera based on host cell tropism (T cells vs. macrophages).

Main Results:

• Feline immunodeficiency virus (FIV) and simian immunodeficiency virus (SIV) mimic HIV's T cell tropism and CD4+ cell depletion.
• Other animal lentiviruses primarily infect macrophages, reflecting different disease manifestations.

Conclusions:

• Animal models, particularly SIV and FIV, are indispensable for advancing our understanding of HIV pathogenesis and acquired immunodeficiency syndrome (AIDS).
• Non-human primate models provide critical insights into the disease mechanisms relevant to human infection.