Reference : Activation of the thromboxane A2 pathway in human prostate cancer correlates with tum...
Scientific journals : Article
Human health sciences : Urology & nephrology
http://hdl.handle.net/2268/4698
Activation of the thromboxane A2 pathway in human prostate cancer correlates with tumor Gleason score and pathologic stage
English
Dassesse, Thibaut [> > > >]
de Leval, Xavier [> > > >]
de Leval, Laurence mailto [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Anatomie et cytologie pathologiques >]
Pirotte, Bernard mailto [Université de Liège - ULg > > Chimie pharmaceutique >]
Castronovo, Vincenzo mailto [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Biologie générale et cellulaire >]
Waltregny, David mailto [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Labo de recherche sur les métastases >]
Nov-2006
European Urology
Elsevier Science Bv
50
5
1021-31, discussion 1031
Yes (verified by ORBi)
International
0302-2838
Amsterdam
[en] prostate ; cancer ; cyclooxygenase ; thromboxane ; prognosis
[en] OBJECTIVE: We investigated the potential involvement of the thromboxane A(2) (TXA(2)) pathway in human prostate cancer (PCa). METHODS: Expression of cyclooxygenase-2 (COX-2), TXA(2) synthase (TXS), and TXA(2) receptors (TPRs), the main actors of the TXA(2) pathway, was analyzed on serial tissue sections from 46 human PCa specimens. RESULTS: The expression levels of COX-2, TXS, and TPRs were significantly higher in malignant than in corresponding nontumoral prostatic epithelial cells. Increased immunoreactivity for these antigens was also observed in high-grade prostate intraepithelial neoplasia (HGPIN) glands. COX-2, TXS, and TPR proteins usually displayed a coordinated overexpression pattern in PCa lesions, as assessed in serial tissue sections. Increased levels of these proteins in the tumors were all significantly associated with higher Gleason scores and pathologic stages. CONCLUSIONS: Proteins specifically involved in the TXA(2) pathway are up-regulated in human PCa and their level of expression is associated with tumor extraprostatic extension and loss of differentiation. Our study is the first to examine simultaneously all key proteins involved in this pathway including TXA(2) receptors and results suggest that the TXA(2) pathway may be a potential target for PCa prevention/therapy.
http://hdl.handle.net/2268/4698
10.1016/j.eururo.2006.01.036

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