Abstract
The pattern recognition receptor CARD8 is an inflammasome sensor for intracellular HIV-1 protease activity. Previously, the only method for studying theCARD8 inflammasome has been through utilizing DPP8/DPP9 inhibitors including Val-boroPro (VbP) to modestly and nonspecifically activate the CARD8 inflammasome. The identification of HIV-1 protease as a target for sensing by CARD8 has opened the door for a new method of studying the underlying mechanism of CARD8 inflammasome activation. Additionally, triggering the CARD8 inflammasome offers a promising strategy for reducing HIV-1 latent reservoirs. Here we describe the methods to study CARD8 sensing of HIV-1 protease activity through non-nucleoside reverse transcriptase inhibitor (NNRTI)-mediated pyroptosis of HIV-1-infected immune cells and through an HIV and CARD8 co-transfection model.
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