PMID- 23024790 OWN - NLM STAT- MEDLINE DCOM- 20130215 LR - 20211021 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 7 IP - 9 DP - 2012 TI - Histone deacetylase inhibitors induce epithelial-to-mesenchymal transition in prostate cancer cells. PG - e45045 LID - e45045 AB - Clinical experience of histone deacetylase inhibitors (HDACIs) in patients with solid tumors has been disappointing; however, the molecular mechanism of treatment failure is not known. Therefore, we sought to investigate the molecular mechanism of treatment failure of HDACIs in the present study. We found that HDACIs Trichostatin A (TSA) and Suberoylanilide hydroxamic acid (SAHA) could induce epithelial-to-mesenchymal transition (EMT) phenotype in prostate cancer (PCa) cells, which was associated with changes in cellular morphology consistent with increased expression of transcription factors ZEB1, ZEB2 and Slug, and mesenchymal markers such as vimentin, N-cadherin and Fibronectin. CHIP assay showed acetylation of histone 3 on proximal promoters of selected genes, which was in part responsible for increased expression of EMT markers. Moreover, TSA treatment led to further increase in the expression of Sox2 and Nanog in PCa cells with EMT phenotype, which was associated with cancer stem-like cell (CSLC) characteristics consistent with increased cell motility. Our results suggest that HDACIs alone would lead to tumor aggressiveness, and thus strategies for reverting EMT-phenotype to mesenchymal-to-epithelial transition (MET) phenotype or the reversal of CSLC characteristics prior to the use of HDACIs would be beneficial to realize the value of HDACIs for the treatment of solid tumors especially PCa. FAU - Kong, Dejuan AU - Kong D AD - Department of Pathology, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan, United States of America. FAU - Ahmad, Aamir AU - Ahmad A FAU - Bao, Bin AU - Bao B FAU - Li, Yiwei AU - Li Y FAU - Banerjee, Sanjeev AU - Banerjee S FAU - Sarkar, Fazlul H AU - Sarkar FH LA - eng GR - R01 CA083695/CA/NCI NIH HHS/United States GR - R01 CA108535/CA/NCI NIH HHS/United States GR - 5R01CA083695-09/CA/NCI NIH HHS/United States GR - 5R01CA108535-06/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20120914 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Biomarkers) RN - 0 (Histone Deacetylase Inhibitors) RN - 0 (Histones) RN - 0 (Transcription Factors) SB - IM MH - Acetylation MH - Biomarkers/metabolism MH - Cell Line, Tumor MH - Cell Movement/drug effects/genetics MH - Epithelial-Mesenchymal Transition/*drug effects/genetics MH - Gene Expression Regulation, Neoplastic/drug effects MH - Histone Deacetylase Inhibitors/*pharmacology MH - Histones/metabolism MH - Humans MH - Male MH - Neoplastic Stem Cells/drug effects/metabolism MH - Phenotype MH - Promoter Regions, Genetic MH - Prostatic Neoplasms/*genetics/*metabolism MH - Transcription Factors/genetics PMC - PMC3443231 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2012/10/02 06:00 MHDA- 2013/02/16 06:00 PMCR- 2012/09/14 CRDT- 2012/10/02 06:00 PHST- 2012/07/02 00:00 [received] PHST- 2012/08/11 00:00 [accepted] PHST- 2012/10/02 06:00 [entrez] PHST- 2012/10/02 06:00 [pubmed] PHST- 2013/02/16 06:00 [medline] PHST- 2012/09/14 00:00 [pmc-release] AID - PONE-D-12-20263 [pii] AID - 10.1371/journal.pone.0045045 [doi] PST - ppublish SO - PLoS One. 2012;7(9):e45045. doi: 10.1371/journal.pone.0045045. Epub 2012 Sep 14.