Identification of the Metabolic Profile of the α-Tubulin-Binding Natural Product (−)–Pironetin
作者:Sara K. Coulup、David S. Huang、Henry L. Wong、Gunda I. Georg
DOI:10.1021/acs.jmedchem.8b01774
日期:2019.2.14
Pironetin, the only crystallographically confirmed natural product to target a-tubulin, displays potent cytotoxic activity against sensitive and resistant A2780 ovarian cancer cell lines but is only marginally active in vivo. We now report that pironetin has a short half-life (<7 min) in human liver microsomes, suggesting that its limited in vivo efficacy is due to rapid metabolism. Further, we describe the discovery of epoxypironetin as pironetin's major metabolite in human liver microsomes.