title: Coumarins from campylotropis hirtella (FRANCH.) SCHINDL. and their inhibitory activity on prostate specific antigen secreted from LNCaP cells.
abstract: Campylotropis hirtella (FRANCH.) SCHINDL. was used as a folk medicine for the treatment of benign prostate hyperplasia (BPH) in China. In this study, two new coumarins, 7,2',4'-trihydroxy-5-methoxy-3-arylcoumarin (1), 6-[(1S,2S)-2-angeloyloxy-1,3-dihydroxy-3-methylbutyl]-7-methoxycoumarin, named angelol M (2), together with eleven known related compounds (3-13) were isolated from this plant under the bioassay guided fractionation. All the compounds showed activity with different levels in inhibiting prostate specific antigen (PSA) secreted from androgen dependent prostate cancer cell line, LNCaP cells, using ELISA method.
authors.affiliation: Cancer Biology Group, Department of Anatomy, Faculty of Medicine, The University of Hong Kong, SAR, China.
authors.forename: Hui-Ying
authors.initials: HY
authors.lastname: Han
authors.forename: Ping
authors.initials: P
authors.lastname: Wen
authors.forename: Hong-Wei
authors.initials: HW
authors.lastname: Liu
authors.forename: Nai-Li
authors.initials: NL
authors.lastname: Wang
authors.forename: Xin-Sheng
authors.initials: XS
authors.lastname: Yao