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Isolation and immunomodulatory effect of homoisoflavones and flavones from Agave sisalana Perrine ex Engelm.

作者信息

Chen Pi Yu, Kuo Yuh Chi, Chen Chin Hui, Kuo Yueh Hsiung, Lee Ching Kuo

机构信息

Graduate Institute of Pharmacy, Taipei Medical University, Taipei,

出版信息

Molecules. 2009 May 12;14(5):1789-95. doi: 10.3390/molecules14051789.

Abstract

Three known flavones and seven known homoisoflavonoids were isolated from the methanolic extract of the leaves of Agave sisalanaPerrine ex Engelm. Their structures were elucidated on the basis of spectroscopic analysis. The isolated compounds were also evaluated for immunopharmacological activity. PBMC were used as target cells, and cell proliferation was determined by (3)H-thymidine uptake. (+/-)-3,9-Dihydroeucomin (4), dihydrobonducellin (5), and 5,7-dihydroxy-3-(4'-hydroxybenzyl)-4-chromanone (7) showed inhibitory effects on PBMC proliferation activated by PHA with IC(50) values 19.4, 73.8, and 58.8 microM, respectively. All three compounds significantly inhibited the production of IL-2 and IFN-gamma in activated PBMC in a concentration-dependent manner.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d1c/6254440/1ad23f78e6e5/molecules-14-01789-g001.jpg

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