{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T15:44:22Z","timestamp":1789832662444,"version":"4.0.1"},"reference-count":60,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,8,8]],"date-time":"2026-08-08T00:00:00Z","timestamp":1786147200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,8,8]],"date-time":"2026-08-08T00:00:00Z","timestamp":1786147200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["bpspubs.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["British J Pharmacology"],"abstract":"<jats:sec>\n                    <jats:title>Background and Purpose<\/jats:title>\n                    <jats:p>The NLRP3 inflammasome is an attractive therapeutic target for multiple inflammatory conditions. Although inhibitors have been developed, their chemical diversity is limited, and their properties are not ideal for brain penetrance, which is desirable for treating neuroinflammatory disorders.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Experimental Approach<\/jats:title>\n                    <jats:p>We applied our chemoproteomics platform to survey our electrophilic fragment collection to identify inhibitors of NLRP3. We focused our attention on compounds that bind Cys463, as this residue was identified as an allosteric sensor of NLRP3 function.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Key Results<\/jats:title>\n                    <jats:p>A novel inhibitor series was identified bearing a butynamide electrophile and a unique spirocyclic lactam core. Compounds from this series displayed mid\u2010nanomolar potency and were found to inhibit IL\u20101\u03b2 secretion in a Cys463\u2010dependent manner. Cryo\u2010EM structures revealed that ligand binding to Cys463 stabilizes an inactive conformation, thereby preventing structural rearrangements required for inflammasome activation. These compounds displayed attractive pharmacokinetic properties and, notably, Kp,uu values &gt;0.5, suggesting the potential to address neuroinflammatory disorders. Administration of a representative compound to humanized mice resulted in clear NLRP3 Cys463 target\u2010engagement and profound suppression of LPS\u2010 and ATP\u2010induced IL\u20101\u03b2 secretion, demonstrating clear proof\u2010of\u2010concept in vivo.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion and Implications<\/jats:title>\n                    <jats:p>Chemoproteomics\u2010based ligand discovery is intrinsically function\u2010agnostic and has the potential to identify novel pockets on even well\u2010characterized protein targets. Here, optimization of ligands targeting Cys463 of NLRP3 within a previously uncharacterized allosteric pocket led to a unique and potent inhibitor series with attractive physicochemical and pharmacokinetic properties for the potential treatment of diseases involving aberrant innate immune activation in both central and peripheral tissues.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/bph.70626","type":"journal-article","created":{"date-parts":[[2026,8,8]],"date-time":"2026-08-08T09:25:34Z","timestamp":1786181134000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Chemoproteomic discovery of a brain\u2010penetrant, covalent NLRP3 inhibitor that binds a novel allosteric pocket"],"prefix":"10.1111","author":[{"given":"Donald C.","family":"Rogness","sequence":"first","affiliation":[{"name":"Vividion Therapeutics  San Diego California 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