PT - JOURNAL ARTICLE AU - FIMOGNARI, CARMELA AU - BERTI, FAUSTO AU - NÜSSE, MICHAEL AU - CANTELLI-FORTI, GIORGIO AU - HRELIA, PATRIZIA TI - <em>In Vitro</em> Anticancer Activity of Cyanidin-3-<em>O</em>-β-Glucopyranoside: Effects on Transformed and Non-transformed T Lymphocytes DP - 2005 Jul 01 TA - Anticancer Research PG - 2837--2840 VI - 25 IP - 4 4099 - http://ar.iiarjournals.org/content/25/4/2837.short 4100 - http://ar.iiarjournals.org/content/25/4/2837.full SO - Anticancer Res2005 Jul 01; 25 AB - Background: Little is known regarding the potentially chemopreventive activity of cyanidin-3-O-β-glucopyranoside (Cy-g), the main anthocyanin present in the juice of pigmented oranges, apart from its antioxidant activity. After excluding a potential genotoxicity of Cy-g, its ability to induce apoptosis on transformed and normal T cells was analysed. In order to delineate the events leading to apoptosis, the expression of different proteins, known to be involved in apoptosis, was also measured. Materials and Methods: The evaluation of genotoxicity was performed by the micronucleus test. Flow cytometry was used for the analysis of apoptotic cells and proteins involved in the modulation of apoptosis. Results: Cy-g was nongenotoxic. Moreover, it induced apoptosis in both cell systems, modulated by an increase of p53 and bax proteins. Conclusion: These interesting biological properties should encourage further studies into the chemopreventive potential of Cy-g. Nevertheless, its activity in normal T cells underlines the need for extensive toxicological investigation. Copyright© 2005 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved