Nonhuman Primates and Humanized Mice for Studies of HIV-1 Integrase Inhibitors: A Review

Area of Science:

• Virology
• Immunology
• Pharmacology

Background:

• Drug resistance is a significant challenge in HIV therapy due to the virus's high mutation rate.
• Predictive animal models are essential for identifying potential resistance mutations and guiding treatment strategies.

Purpose of the Study:

• To review findings from animal models used in the preclinical testing of integrase strand transfer inhibitors (INSTIs).
• To highlight the role of these models in understanding HIV-1 infection and drug resistance.

Main Methods:

• Utilizing nonhuman primate models infected with SIV, SHIV, and simian-tropic HIV-1 (stHIV-1).
• Employing humanized mouse models for HIV-1 infections.
• Preclinical testing of integrase strand transfer inhibitors in these established animal models.

Main Results:

• Animal models have advanced the understanding of HIV drug resistance mechanisms.
• These models have provided insights into the efficacy of INSTIs in preclinical settings.
• Findings from these models inform the potential use of INSTIs in HIV prevention and treatment.

Conclusions:

• Animal models are vital tools for preclinical evaluation of HIV therapeutics, particularly INSTIs.
• Continued development and use of these models can help overcome challenges posed by HIV drug resistance.
• Insights gained are critical for advancing both HIV prevention and treatment strategies.