Tabersonine

Tabersonine is a selective and orally active inhibitor of the NLRP3 inflammasome, targeting the NACHT domain to modulate its ATPase activity and prevent oligomerization. This mechanism effectively inhibits ASC speck formation and blocks caspase-1 activation, leading to reduced secretion of pro-inflammatory cytokines, including IL-1β. Additionally, Tabersonine interferes with K63-linked ubiquitination of TRAF6, disrupting NF-κB, PI3K/Akt, and p38 MAPK signaling pathways. It is primarily utilized in research on NLRP3-mediated inflammatory diseases, such as acute lung injury, sepsis, and peritonitis, as well as in studies related to liver cancer.