Reference : Screening of histone deacetylases (HDAC) expression in human prostate cancer reveals ...
Scientific journals : Article
Life sciences : Anatomy (cytology, histology, embryology...) & physiology
Screening of histone deacetylases (HDAC) expression in human prostate cancer reveals distinct class IHDAC profiles between epithelial and stromal cells
Waltregny, David mailto [Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Labo de recherche sur les métastases >]
North, Brian [> > > >]
Van Mellaert, Frank [> > > >]
de Leval, Jean mailto [Université de Liège - ULiège > Département des sciences cliniques > Urologie >]
Verdin, Eric [ > > ]
Castronovo, Vincenzo mailto [Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie générale et cellulaire >]
European Journal of Histochemistry
Luigi Ponzio E Figlio
3, Jul-Sep
Yes (verified by ORBi)
[en] prostate ; cancer ; histone ; deacetylase expression
[en] Histone deacetylases (HDACs) represent a large family of enzymes identified as key regulators of nucleosomal histone acetylation, a major epigenetic event that controls eukaryotic gene transcription. Inappropriate deacetylation mediated by HDACs has been associated with profound alterations in cellular biology. We have thus hypothesized that an altered HDAC expression may favor cancer development/progression. To test this possibility, we have sought to screen the expression profiles of several class I and class 11 HDACs (HDAC1-8) in DU-145, PC-3 and LNCaP human prostate cancer cell lines as well as in matched malignant and nonmalignant prostate tissues by use of real time RT-PCR, immunoblot and immunohistochemistry. All HDAC transcripts tested were detected at various levels in all prostate cancer cell lines and tissue samples analyzed. In prostate tissues, the abundance of HDAC1 protein, which was exclusively expressed in the cell nucleus, was similar in normal and malignant epithelial cells, but was usually lower in stromal cells. Unexpectedly, HDAC8, another class I HDAC, was not detected in epithelial cells but was uniquely expressed in the cytoplasm of stromal cells, HDAC5, a class II HDAC involved in myogenesis, was not detected in the tissues. Altogether, our findings indicate that epithelial and stromal cells exhibit distinct class I HDAC expression profiles, and the abundance of HDAC1 is not altered in human prostate cancer. In addition, our observations are the first to demonstrate the prominently cytosolic distribution of a class I HDAC, HDAC8.

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