title: Effects of total glycosides from Baishouwu on human breast and prostate cancer cell proliferation.
abstract: Baishouwu (Cynanchum Auriculalum Royle ex Wight), a traditional Chinese herbal medicine, is used as a traditional anti-aging remedy in China. Previous studies suggested Baishouwu has multiple pharmacological actions. In this study, the total glycosides extracted from Baishouwu (CA/TG) were evaluated for its potential anti-tumor activity and mechanism on several human breast and prostate cancer cell lines. In [3H] thymidine incorporation assay. CA/TG inhibited the proliferation of cancer cells in a dose-dependent fashion. It also displayed anti-androgen activity on androgen sensitive cell line assessed by reporter gene assay. The morphological examination of CA/TG treated cells revealed overall shrinkage of nucleus, chromatin condensation and small nuclear fragments by DAPI staining, the characteristic pattern of DNA ladders were observed in cells exposed to CA/TG, indicating the involvement of apoptosis in its action. These results suggested that the CA/TG has preferred cytotoxicity against the cancer cells, and the action was due to its ability of preventing cell proliferation and inducing apoptosis.
authors.affiliation: University of Maryland, School of Pharmacy, Department of Pharmaceutical Sciences, Baltimore, MD, USA.
authors.forename: Hongyan
authors.initials: H
authors.lastname: Wang
authors.forename: Qianben
authors.initials: Q
authors.lastname: Wang
authors.forename: Rakesh K
authors.initials: RK
authors.lastname: Srivastava
authors.forename: Shu Sheng
authors.initials: SS
authors.lastname: Gong
authors.forename: Lixing
authors.initials: L
authors.lastname: Lao
authors.forename: Joseph D
authors.initials: JD
authors.lastname: Fondell
authors.forename: Jia Bei
authors.initials: JB
authors.lastname: Wang
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects*; D001577:Benzophenones / Q000494:pharmacology*; D001943:Breast Neoplasms / Q000188:drug therapy / Q000473:pathology*; D002455:Cell Division / Q000187:drug effects; D053938:DNA Fragmentation / Q000187:drug effects; D004273:DNA, Neoplasm / Q000187:drug effects; D004365:Drugs, Chinese Herbal / Q000494:pharmacology*; D004587:Electrophoresis, Agar Gel; D005260:Female; D006801:Humans; D008297:Male; D011471:Prostatic Neoplasms / Q000188:drug therapy / Q000473:pathology*; D013936:Thymidine; D014407:Tumor Cells, Cultured
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D001577:Benzophenones; D004273:DNA, Neoplasm; D004365:Drugs, Chinese Herbal; C057229:baishouwubenzophenone; D013936:Thymidine