Triterpenoid saponins from the cytotoxic root extract of Sideroxylon foetidissimum, an endemic Yucatecan medicinal plant
Sánchez-Medina, A., Stevenson, P.C., Habtemariam, S., Peña-Rodríguez, L.M., Corcoran, O., Mallet, T.A. and Veitch, N.C. (2008) Triterpenoid saponins from the cytotoxic root extract of Sideroxylon foetidissimum, an endemic Yucatecan medicinal plant. Planta Medica, 74 (9). SL13-SL13. ISSN 0032-0943 (doi:10.1055/s-0028-1083893)Full text not available from this repository.
The flora of the Yucatan peninsula (Mexico) includes approximately 3000 plant species. Sideroxylon foetidissimum Jacq. subsp. gaumeri (Sapotaceae) is an endemic plant to the Yucatan peninsula; its fruit is edible and local people use the plant for medicinal purposes, although no details on its preparation or application are available [1,2]. A preliminary cytotoxic evaluation of the ethanolic root extract of S. foetidissimum revealed a potent activity against murine macrophage like cell line RAW 264.7 (IC50=39.54±4.11µg/mL). The systematic bioassay-guided fractionation of the extract resulted in the identification of the active saponin-containing fraction (IC50=33.69±6.19µg/mL). Four new triterpenoid saponins and a 1:1 mixture of two saponins were isolated from the active saponin- containing fraction. The evaluation of their cytotoxic activity revealed no activity for the tested pure saponins; however, the 1:1 mixture of saponins showed a potent activity (IC50=11.91±1.49µg/mL). The isolation of the saponins was carried out using semi-preparative HPLC. The structural assignments of the pure saponins were based on 1D (1H and 13C and DEPT-135) and 2D (COSY, HMBC, HSQC and TOCSY) NMR and mass spectrometry analyses. In this presentation, the isolation, identification and cytotoxic activity of the isolated compounds is discussed in more detail.
|Additional Information:|| Abstract from short lecture at 7th Joint Meeting of GA, AFERP, ASP, PSE & SIF. 3–8 Aug 2008. Athens, Greece.|
|Uncontrolled Keywords:||Sideroxylon foetidissimum, saponins|
|Subjects:||R Medicine > RM Therapeutics. Pharmacology|
|School / Department / Research Groups:||Natural Resources Institute|
Natural Resources Institute > Agriculture, Health & Environment
School of Science
School of Science > Department of Pharmaceutical, Chemical & Environmental Sciences
|Last Modified:||29 Nov 2013 16:28|
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