Abstract

Nucleotide-binding domain leucine-rich repeat and pyrin domain-containing protein 3 (NLRP3) is a downstream protein from the pattern recognition receptor family that forms the NLRP3 inflammasome. The NLRP3 inflammasome releases caspase-1, IL-1β, and IL-18, contributing to inflammatory responses associated with diabetes mellitus, arthritis, and ischemia-reperfusion injury. Recent studies suggest that specific saponin monomers and extracts from traditional Chinese medicines can inhibit inflammatory responses and related pathways, including the production of inflammatory factors. MCC950 is one of the most influential and specific NLRP3 inhibitors. Comparative molecular docking studies have identified 22 of the 37 saponin components as more robust binders to NLRP3 than MCC950. Dioscin, polyphyllin H, and saikosaponin-a have the highest binding affinities and potential NLRP3 inhibitors, offering a theoretical basis for developing novel anti-inflammatory therapies.

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