First Author | Konoshima T | Year | 2000 |
Journal | Cancer Lett | Volume | 157 |
Issue | 1 | Pages | 87-92 |
PubMed ID | 10893446 | Mgi Jnum | J:63578 |
Mgi Id | MGI:1861255 | Doi | 10.1016/s0304-3835(00)00479-1 |
Citation | Konoshima T, et al. (2000) Cancer chemopreventive activity of an iridoid glycoside, 8-acetylharpagide, from Ajuga decumbens. Cancer Lett 157(1):87-92 |
abstractText | In the course of our continuing search for novel cancer chemopreventive agents from natural sources, several kinds of Labiatae plants were screened. Consequently, the iridoid glycoside derivative, 8-acetylharpagide (8-AcHarp), was obtained from the flowering whole plant of Ajuga decumbens as an active constituent. This glycoside exhibited the remarkable inhibitory effect on two-stage carcinogenesis test of mouse skin tumors induced by nitric oxide (NO) donor, (+/-)-(E)-methyl-2-[(E)-hydroxyimino]-5-nitro-6-methoxy-3-hexen eamide (NOR 1) as an initiator and 12-O-tetradecanoylphorbol-13-acetate (TPA) as a promoter. Further, 8-AcHarp exhibited potent anti-tumor-promoting activity on two-stage carcinogenesis test of mouse hepatic tumor using N-nitrosodiethylamine (DEN) as an initiator and phenobarbital (PB) as a promoter. |