title: Anti-tumor activity of a 3-oxo derivative of oleanolic acid.
abstract: Oleanolic acid (3beta-hydroxy-olea-12-en-28-oic acid, OA) exists widely in plant kingdom and possesses various pharmacological activities. In recent years, it was found that it had marked anti-tumor effects and exhibited cytotoxic activity towards many cancer cell lines in culture. In this article, the anti-tumor and differentiation-inducing effects of a derivative of OA modified at C-3, 3-oxo oleanolic acid (3-oxo-olea-12-en-28-oic acid, 3-oxo-OA, 3-7-1) was reported. In vitro, 3-7-1 were found to inhibit significantly the growth of cancer cells derived from different tissues. And 3-7-1 had inhibitory effect on melanoma in vivo. This selection may relate to the differentiation induced by 3-7-1. The inhibition of 3-7-1 on B16-BL6 suggests that 3-7-1 may be a useful anti-cancer agent for melanoma.
authors.affiliation: Department of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China.
authors.forename: Dan
authors.initials: D
authors.lastname: Huang
authors.forename: Yan
authors.initials: Y
authors.lastname: Ding
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Wenming
authors.initials: W
authors.lastname: Zhang
authors.forename: Weishuo
authors.initials: W
authors.lastname: Fang
authors.forename: Xiaoguang
authors.initials: X
authors.lastname: Chen
mesh_terms: D000970:Antineoplastic Agents / Q000494:pharmacology*; D002454:Cell Differentiation / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D004264:DNA Topoisomerases, Type I / Q000378:metabolism; D006801:Humans; D014442:Monophenol Monooxygenase / Q000378:metabolism; D009374:Neoplasms, Experimental / Q000188:drug therapy* / Q000378:metabolism; D009828:Oleanolic Acid / Q000031:analogs & derivatives / Q000494:pharmacology*; D013936:Thymidine / Q000378:metabolism; D014407:Tumor Cells, Cultured / Q000187:drug effects
chemical_list: D000970:Antineoplastic Agents; D009828:Oleanolic Acid; D014442:Monophenol Monooxygenase; D004264:DNA Topoisomerases, Type I; D013936:Thymidine