Article (Scientific journals)
Screening of histone deacetylases (HDAC) expression in human prostate cancer reveals distinct class IHDAC profiles between epithelial and stromal cells
Waltregny, David; North, Brian; Van Mellaert, Frank et al.
2004In European Journal of Histochemistry, 48 (3, Jul-Sep), p. 273-290
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Keywords :
prostate; cancer; histone; deacetylase expression
Abstract :
[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.
Disciplines :
Anatomy (cytology, histology, embryology...) & physiology
Author, co-author :
Waltregny, David  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Labo de recherche sur les métastases
North, Brian
Van Mellaert, Frank
de Leval, Jean ;  Université de Liège - ULiège > Département des sciences cliniques > Urologie
Verdin, Eric
Castronovo, Vincenzo ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie générale et cellulaire
Language :
English
Title :
Screening of histone deacetylases (HDAC) expression in human prostate cancer reveals distinct class IHDAC profiles between epithelial and stromal cells
Publication date :
2004
Journal title :
European Journal of Histochemistry
ISSN :
1121-760X
eISSN :
2038-8306
Publisher :
Luigi Ponzio E Figlio
Volume :
48
Issue :
3, Jul-Sep
Pages :
273-290
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 January 2009

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