Inhibitory activity on HIV-1 reverse transcriptase and integrase of a carmalol derivative from a brown Alga, Ishige okamurae.
Phytother Res 2006;
20:711-3. [PMID:
16775811 DOI:
10.1002/ptr.1939]
[Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The bioassay-directed isolation of a marine brown alga, Ishige okamurae, afforded a carmalol derivative, diphlorethohydroxycarmalol. This compound exhibited inhibitory effects on HIV-1 reverse transcriptase and integrase with IC(50) values of 9.1 microM and 25.2 microM, respectively. However, diphlorethohydroxycarmalol did not show an inhibitory activity against HIV-1 protease. Moreover, diphlorethohydroxycarmalol nonaacetate obtained by acetylation and fucosterol failed to show any inhibitory activity against these viral enzymes.
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