title: Petasiphenone, a phenol isolated from Cimicifuga racemosa, in vitro inhibits proliferation of the human prostate cancer cell line LNCaP.
abstract: Extracts of Cimicifuga racemosa (L.) Nutt. (syn.: Actaea racemosa L.) (CR) inhibit the proliferation of the human prostate cancer cell line LNCaP. Recently, the phenylpropanoid ester 3,4-dihydroxyphenacyl caffeate (petasiphenone, 1) was isolated from CR. This substance is a structural homologue to petasiphenol ([3-(3,4-dihydroxyphenyl)-2-oxopropyl caffeate]), a compound produced by Petasites japonicus Sieb. & Zucc. which inhibits the growth of various human leukemia cell lines. Because of the structural similarity, we examined whether 1 affects the proliferation of LNCaP cells and the secretion of prostate-specific antigen (PSA). Under basal conditions as well as under co-incubation with 10 nM estradiol [E2 or 1 nM dihydrotestosterone (DHT)], 1 dose-dependently inhibited proliferation of LNCaP cells while PSA release per cell was not altered. We report for the first time that a defined compound isolated from CR inhibits the growth of the human prostate cancer cells LNCaP.
authors.affiliation: Division of Clinical and Experimental Endocrinology, University of Göttingen, Göttingen, Germany. hubjarry@med.uni-goettingen.de
authors.forename: Hubertus
authors.initials: H
authors.lastname: Jarry
authors.forename: Stefan
authors.initials: S
authors.lastname: Stromeier
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Wuttke
authors.forename: Adolf
authors.initials: A
authors.lastname: Nahrstedt
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D002109:Caffeic Acids / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D002277:Carcinoma / Q000188:drug therapy / Q000473:pathology; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D031885:Cimicifuga / Q000737:chemistry*; D006801:Humans; D008297:Male; D010636:Phenols / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D010936:Plant Extracts / Q000737:chemistry; D011471:Prostatic Neoplasms / Q000188:drug therapy* / Q000473:pathology
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D002109:Caffeic Acids; D010636:Phenols; D010936:Plant Extracts; C520402:3,4-dihydroxyphenacyl caffeate phenylpropanoid ester