Hypoxia inducible factor (HIF) α-subunit inhibitor (IC50 = 80 nM in hypoxia induced luciferase assay). Inhibits transcriptional activity of HIFα isoforms.

A kind of alkaloid, extract from the kudzu root of menispermaceae plants.

Taccalonolide AJ is a microtubule stabilizer; it has excellent and highly persistent antitumor efficacy when administered directly to the tumor, suggesting that the lack of antitumor efficacy seen with systemic administration of AJ is likely due to its short half-life in vivo.