| Literature DB >> 19775597 |
Yuan Cao1, Nin-Hua Tan, Ji-Jun Chen, Guang-Zhi Zeng, Yun-Bao Ma, Yong-Ping Wu, He Yan, Jie Yang, Lai-Feng Lu, Qiang Wang.
Abstract
Three new flavones named 5-carboxymethyl-4',7-dihydroxyflavone (1), its ethyl ester (2) and butyl ester (3) were isolated from the herb Selaginella moellendorffii Hieron., together with ten known compounds. Their structures were elucidated on the basis of spectroscopic and chemical analysis. Selected compounds were evaluated for their anti-HBV and cytotoxic activity. Among them, compounds 2 and 3 displayed inhibitory activity in vitro on hepatitis B virus (HBV) surface antigen (HBsAg) secretion of the Hep G2.2.15 cell line with IC(50) values of 0.17 mg/ml and 0.46 mg/ml, and on HBV e antigen (HBeAg) secretion with IC(50) values of 0.42 mg/ml and 0.42 mg/ml, respectively. Compounds 7, 8, 10 and 12 exhibited selective cytotoxicity against the three human cancer cell lines tested. (c) 2009 Elsevier B.V. All rights reserved.Entities:
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Year: 2009 PMID: 19775597 DOI: 10.1016/j.fitote.2009.09.007
Source DB: PubMed Journal: Fitoterapia ISSN: 0367-326X Impact factor: 2.882