Cytotoxic and ACAT-inhibitory sesquiterpene lactones from the root ofIxeris dentata formaalbiflora
- 151 Downloads
- 16 Citations
Abstract
Ixeris dentata formaalbiflora was extracted with 80% aqueous MeOH, and the concentrated extract was partitioned with EtOAc,n-BuOH and H2O. Eight sesquiterpenes were isolated through repeated silica gel and octadecyl silica gel (C18, ODS) column chromatography of the EtOAc andn-BuOH fractions. Physicochemical analysis using NMR, MS and IR revealed the chemical structures of the sesquiterpenes, which were zaluzanin (1), 9a-hydroxyguaian-4(15), 10(14), 11(13)-triene-6, 12-olide (2), 3β-O-β-D-glucopyranosyl-8β-hydroxyguaian-4(15), 10(14)-diene-6,12-olide (3), 3-O-β-D-glucopyranosyl-8β-hydroxyguauan-10(14)-ene-6,12-olide (4), ixerinM (5), glucozaluzanin C (6), crepiside I (7), and ixerin D (8). This is the first time that these sesquiterpene lactones have been isolated from this plant. Compounds1, 2 and7 revealed relatively high cytotoxicities on human colon carcinoma cell and lung adenocarcinoma cell, while compounds5 and7 showed acyl-CoA: cholesterol acyltransferase (ACAT) inhibitory activity.
Key words
Ixeris dentata formaalbiflora Sesquiterpene lactone ACAT HT29 A549References
- Arai, Y., Kusumoto, Y., Nagao, M., Shiojima, K., and Ageta, H., Compositae constituents: Aliphatics and triterpenoide isolated from the whole plants ofIxeris debilis andI. dentata.Yakugaku Zasshi, 103, 356 (1985).Google Scholar
- Bang, M. H., Jang, T. H., Song, M. C., Kim, D. H., Kwon, B. M., Kim, Y. K., Lee, H. S., Chung, I. S., Kim, D. K., Kim, S. H., Park, M. H., and Baek, N. I., Screening of biologically active compound from edible plant sources-IX. Isolation and identification of sesquiterpene lactones isolated from the root ofIxeris dentate formaalbiflora; inhibition effects on ACAT, DGAT and FPTase activity.J. Korean Soc. Appl. Biol. Chem., 47, 251–257 (2004).Google Scholar
- Brown, M. S., Dana, S. E., and Goldstein, J. L., Cholsterol ester formation in cultured human fibroblasts.J. Biol. Chem., 250, 4025–4027 (1975).PubMedGoogle Scholar
- Brecher, P. and Chan, C. T., Properties of acyl-CoA: CholesterolO-acyltransferase in aortic microsomes from atherosclerotic rabbits.Biochem. Biophys. Acta., 617, 458–471 (1980).PubMedGoogle Scholar
- Chan, E. W., Cheng, S. C., Sin, F. W., and Xie, Y., Triptolide induced cytotoxic effects on human promyelocytic leukemia, T cell lymphoa and human hepatocellular carcinoma cell lines.Toxicol. Lett., 122, 81–87 (2001).PubMedCrossRefGoogle Scholar
- Geissman, T. A., in Recent Advances in Phytochemistry. Vol. 6. Runeckless, V. C. and Mabry, T. J. (eds.), Academic Press, New York. (1973).Google Scholar
- Hidehisa, A., Toshio, M., and Seigo F., Sesquiterpene lactones from Ixeris tamagawaensis Kitam II.Chem. Pharm. Bull., 32. 3036–3042 (1984).Google Scholar
- Jeong, T. S., Kim, S. U., Son, K. H., Kwon, B. M., Kim, Y. K., Choi, M. U., and Bok, S. H., GERI-BP001 compounds, new inhibitors of acyl-CoA: Cholesterol acytransferase fromAspergillus fumigatus F37.J. Antibiot., 48, 751–756 (1995).PubMedGoogle Scholar
- Kim, M. K. and Lee, M. S., Volatile flavor components ofIxeris dentata andAmaranthus mangostanus.J. Kor. Agric. Chem. Soc., 31, 394–399 (1988).Google Scholar
- Lee, C. H., Jeong, T. S., Choi, Y. K., Hyun, B. W., Oh, G. T., Kim, E. H., Kim, J. R., Han, J. I., and Bok, S. H., Anti-atherogenic effect of citrus flanonoids, naringin and naringenin, associated with hepatic ACAT and aortic VCAM-1 and MCP-1 in high cholesterol-fed rabits.Biochem. Biophys. Res. Commun., 284, 681–688 (2001).PubMedCrossRefGoogle Scholar
- Mamoru, S., Toshio, M. and Seigo, F., Sesquiterpene lactones fromIxeris dentate Nakai.Chem. Pharm. Bull., 34, 4170–4176 (1986).Google Scholar
- Miyase, T., Ueno, A., Noro, T., Kuroyanagi, K., and Fukushima S., Studies on sesquiterpene glycosides fromCrepis japonica BENTH.Chem. Pharm. Bull., 33, 4451–4456 (1985).Google Scholar
- Miyase, T. and Fukushima, S., Sesquiterpene lactones fromAinsliaea acerifolia Sch. Bip. andA. dissecta Franch. Et Sav.Chem. Pharm. Bull., 32, 3043–3046 (1984).Google Scholar
- Robles, M., Aregullin, M., West, J., and Rodriguez, E., Recent studies on the zoopharmacognosy, pharmacology and neurotoxicology of sesquiterpene lactones.Planta Med., 61, 199–203 (1995).PubMedCrossRefGoogle Scholar
- Seto, M., Miyasa, T., and Fukushima, S. Sesquiterpene lactones fromIxeris dentata Nakai.Chem. Pharm. Bull., 34, 4170–4176 (1986).Google Scholar
- Soka, T., InDictionary of Chinese Drugs (1st ed.) Shanghai Science Technology Shogakukan Press, Tokyo (1985).Google Scholar
- Warashina, T., Ishino, M., Miyase, T., and Ueno, A., Sesquiterpene glycosides fromIxeris debilis andIxeris repens.Phytochemistry. 29, 3217–3224 (1990).CrossRefGoogle Scholar