Original Articles

Effects of tubeimoside-1 on HIV core protein p24 and cytopathogenesis in vitro

Authors: Li-jian Yu, Run-di Ma, Shi-bo Jiang

Abstract

Tubeimoside-1 (Tub) is a triterpenoid saponin first isolated in China from Bolbostemma paniculatum (Maxim) Franquet, Cucurbitaceae. To find out whether Tub has any anti-infective activity on human immunodeficiency virus (HIV), we tested its effects on HIV core protein p24 (with an ELISA) and HIV-mediated cytopathogenesis (using a colorimetric assay). The results showed that Tub inhibited both p24 production and cytopathogenesis mediated by HTLV-IIIB, and the median effective concentrations (EC50) were 24.1 and 22.9 micrograms.ml-1, respectively. Tub also effectively neutralized the infection of 2 other isolates, HTLV-IIIRF and HTLV-IIIMN. It is concluded that Tub had an inhibitory action on the infection of HIV-1 isolates and would be a promising candidate for treatment of AIDS
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