title: Selective proapoptotic activity of polyphenols from red wine on teratocarcinoma cell, a model of cancer stem-like cell.
abstract: Cancer stem cells are expected to be responsible for tumor initiation and metastasis. These cells are therefore potential targets for innovative anticancer therapies. However, the absence of bona fide cancer stem cell lines is a real problem for the development of such approaches. Since teratocarcinoma cells are totipotent stem cells with a high degree of malignancy, we used them as a model of cancer stem cells in order to evaluate the anticancer chemopreventive activity of red wine polyphenols (RWPs) and to determine the underlying cellular and molecular mechanisms. We therefore investigated the effects of RWPs on the embryonal carcinoma (EC) cell line P19 which was grown in the same culture conditions as the most appropriate normal cell line counterpart, the pluripotent embryonic fibroblast cell line NIH/3T3. The present study indicates that RWPs selectively inhibited the proliferation of P19 EC cells and induced G1 cell cycle arrest in a dose-dependent manner. Moreover, RWPs treatment specifically triggered apoptosis of P19 EC cells in association with a dramatic upregulation of the tumor suppressor gene p53 and caspase-3 activation. Our findings suggest that the chemopreventive activity of RWPs on tumor initiation and development is related to a growth inhibition and a p53-dependent induction of apoptosis in teratocarcinoma cells. In addition, this study also shows that the EC cell line is a convenient source for studying the responses of cancer stem cells to new potential anticancer agents.
authors: UMR 7213 CNRS, Laboratoire de Biophotonique et Pharmacologie, Université de Strasbourg, B.P. 60024, Illkirch, 67401, France.
authors: Tanveer
authors: T
authors: Sharif
authors: Cyril
authors: C
authors: Auger
authors: Christian
authors: C
authors: Bronner
authors: Mahmoud
authors: M
authors: Alhosin
authors: Thibaut
authors: T
authors: Klein
authors: Nelly
authors: N
authors: Etienne-Selloum
authors: Valérie B
authors: VB
authors: Schini-Kerth
authors: Guy
authors: G
authors: Fuhrmann
mesh_terms: D000818:Animals; D017209:Apoptosis / Q000187:drug effects*; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D004354:Drug Screening Assays, Antitumor; D005419:Flavonoids / Q000737:chemistry / Q000494:pharmacology*; D016193:G1 Phase / Q000187:drug effects; D051379:Mice; D008954:Models, Biological; D041681:NIH 3T3 Cells; D014411:Neoplastic Stem Cells / Q000187:drug effects* / Q000473:pathology*; D010636:Phenols / Q000737:chemistry / Q000494:pharmacology*; D059808:Polyphenols; D018243:Teratocarcinoma / Q000473:pathology*; D016159:Tumor Suppressor Protein p53 / Q000235:genetics / Q000378:metabolism; D015854:Up-Regulation / Q000187:drug effects; D014920:Wine
chemical_list: D005419:Flavonoids; D010636:Phenols; D059808:Polyphenols; D016159:Tumor Suppressor Protein p53