jacaranone

Jacaranone is a naturally occurring small molecule classified as a bicyclic sesquiterpene phytoquinoid, originally isolated from plants such as Senecio scandens, Ternstroemia japonica, and Jacaranda copaia. Its chemical structure features a cyclohexadiene ring with hydroxyl, keto, and methyl acetic acid ester groups, with a molecular formula of C9H10O4 and molecular weight 182.17 g/mol. Jacaranone exhibits a range of biological activities, most notably **antitumor and antiproliferative properties**. Mechanistically, it induces apoptosis in tumor cells (including melanoma, breast, ovarian, prostate carcinoma, liver, and leukemia cell lines) through modulation of the TNFR1 (Tumor Necrosis Factor Receptor 1) pathway. It degrades the inhibitor of apoptosis protein cIAP-2 (E3 ubiquitin ligase), leading to increased cell death by promoting the formation of the TNFR1 complex II, thus favoring apoptotic over survival signaling. Jacaranone also increases ROS (reactive oxygen species) production, Akt inactivation, and p38 MAPK phosphorylation, leading to increased proapoptotic protein Bax. It has shown significant antitumor activity in preclinical xenotransplantation and murine tumor models, with selective toxicity toward malignant cells and minimal toxicity in normal cells[1][3][4][5][7].

Other names

methyl 2-(1-hydroxy-4-oxocyclohexa-2,5-dien-1-yl)acetatejacaramome2,5-cyclohexadiene-1-acetic acid, 1-hydroxy-4-oxo-, methyl ester