Cytotoxic activity of an octadecenoic acid extract from Euphorbia kansui (Euphorbiaceae) on human tumour cell strains.

Autor: Yu F; School of Public Security, Gansu Institute of Political Science and Law, Lanzhou 730070, China. fyu@ufl.edu, Lu S, Yu F, Shi J, McGuire PM, Wang R
Jazyk: angličtina
Zdroj: The Journal of pharmacy and pharmacology [J Pharm Pharmacol] 2008 Feb; Vol. 60 (2), pp. 253-9.
DOI: 10.1211/jpp.60.2.0015
Abstrakt: We have investigated the cytotoxic and antitumour activity of an octadecenoic acid extract, mainly containing oleic and linoleic acids, from Euphorbia kansui on human gastric (SGC-7901), hepatocellular carcinoma (BEL-7402), and leukaemia (HL-60) tumour cell strains. Significant and dose-dependent antiproliferation effects were observed on tumour cells from the dose of 3.2 microg mL(-1), which were comparable with or better than those of the common antitumour agent 5-fluorouracil. Results from the clone formation assay and flow cytometry indicated that the mixture of octadecenoic acids resulted in a dose-dependent reduction in the number of tumour cells and significantly inhibited cell proliferation, with induced apoptosis and G(0)/G(1) phase cell cycle arrest. Also, the octadecenoic acids could not only cause cell apoptosis/necrosis but also functionally and structurally damage the tumour cell membrane and cell ultra-structures. These observations encourage further clinical evaluation of the inhibitory effects of octadecenoic acids on various forms of cancer.
Databáze: MEDLINE