RÁROVÁ, Lucie, JÄGER, A. K., GAO, X., BAUER, R., GRÚZ, Jiří, VAN STADEN, J., STRNAD, Miroslav. Biological activities of extract from Coleonema album in vitro. South African Journal of Botany. 2019, 126(NOV), 176-181. ISSN 0254-6299. E-ISSN 1727-9321

Coleonema album is a South African shrub which is used as an anti-inflammatory. A methanolic leaf extract of C. album was here tested in vitro in various anti-inflammatory assays to establish a possible mode of action, as well as for cytotoxicity. The C. album extract did not change the signaling of anti-inflammatory activity in vitro. The extract inhibited COX-1, COX-2 and IL-6, but not ELAM or ICAM-1. Pellitorine, an alkamide isolated and identified from C. album, did not show any activity in the anti-inflammatory assays. The extract showed no cytotoxicity in normal and cancer cell lines. Finally, pellitorine was identified in C. album by UHPLC-QTOF-MS and its concentration was determined by an external standard method.