Identification of differentially expressed proteins in curcumin-treated prostate cancer cell lines

Marie Hélène Teiten, Anthoula Gaigneaux, Sébastien Chateauvieux, Anja M. Billing, Sébastien Planchon, Fred Fack, Jenny Renaut, Fabienne Mack, Claude P. Muller, Mario Dicato, Marc Diederich*

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

38 Citations (Scopus)

Abstract

Due to high prevalence and slow progression of prostate cancer, primary prevention appears to be attractive strategy for its eradication. During the last decade, curcumin (diferuloylmethane), a natural compound from the root of turmeric (Curcuma longa), was described as a potent chemopreventive agent. Curcumin exhibits anti-inflammatory, anticarcinogenic, antiproliferative, antiangiogenic, and antioxidant properties in various cancer cell models. This study was designed to identify proteins involved in the anticancer activity of curcumin in androgen-dependent (22Rv1) and -independent (PC-3) human prostate cancer cell lines using two-dimensional difference in gel electrophoresis (2D-DIGE). Out of 425 differentially expressed spots, we describe here the MALDI-TOF-MS analysis of 192 spots of interest, selected by their expression profile. This approach allowed the identification of 60 differentially expressed proteins (32 in 22Rv1 cells and 47 in PC-3 cells). Nineteen proteins are regulated in both cell lines. Further bioinformatic analysis shows that proteins modulated by curcumin are implicated in protein folding (such as heat-shock protein PPP2R1A; RNA splicing proteins RBM17, DDX39; cell death proteins HMGB1 and NPM1; proteins involved in androgen receptor signaling, NPM1 and FKBP4/FKBP52), and that this compound could have an impact on miR-141, miR-152, and miR-183 expression. Taken together, these data support the hypothesis that curcumin is an interesting chemopreventive agent as it modulates the expression of proteins that potentially contribute to prostate carcinogenesis.

Original languageEnglish
Pages (from-to)289-300
Number of pages12
JournalOMICS A Journal of Integrative Biology
Volume16
Issue number6
DOIs
Publication statusPublished - 1 Jun 2012

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