Discovery of novel biphenyl-sulfonamide analogues as NLRP3 inflammasome inhibitors

Bioorg Chem. 2024 Mar 9;146:107263. doi: 10.1016/j.bioorg.2024.107263. Online ahead of print.ABSTRACTThe aberrant activation of NLRP3 inflammasome has been observed in various human diseases. Targeting the NLRP3 protein with small molecule inhibitors shows immense potential as an effective strategy for disease intervention. Herein, a series of novel biphenyl-sulfonamide NLRP3 inflammasome inhibitors were designed and synthesized. The representative compound H28 was identified as potent and specific NLRP3 inflammasome inhibitor with IC50 values of 0.57 μM. Preliminary mechanistic studies have revealed that compound H28 exhibits direct binding to the NLRP3 protein (KD: 1.15 μM), effectively inhibiting the assembly and activation of the NLRP3 inflammasome. The results in a mouse acute peritonitis model revealed that H28 effectively inhibit the NLRP3 inflammasome pathway, demonstrating their anti-inflammatory properties. Our findings strongly support the further development of H28 as potential lead compound for treating NLRP3-related diseases.PMID:38492493 | DOI:10.1016/j.bioorg.2024.107263

Source: Bioorganic Chemistry - March 16, 2024 Category: Chemistry Authors: Chao Huang Jinyu Liu Yuxin Chen Simin Sun Tongtong Kang Yuqi Jiang Xiaoyang Li Source Type: research