PMID- 16245307 OWN - NLM STAT- MEDLINE DCOM- 20060421 LR - 20131121 IS - 0021-9541 (Print) IS - 0021-9541 (Linking) VI - 206 IP - 3 DP - 2006 Mar TI - TNF-alpha-related apoptosis-inducing ligand decoy receptor DcR2 is targeted by androgen action in the rat ventral prostate. PG - 709-17 AB - The apoptotic cell death process in the prostate is known to be under the control of androgens. Tumor necrosis factor-alpha (TNF-alpha)-related apoptosis-inducing ligand (TRAIL) is a member of the TNF-alpha family of cytokines, known to induce apoptosis upon binding to its death domain-containing receptors, DR4/TRAIL-R1 and DR5/TRAIL-R2. Two additional TRAIL receptors, DcR1/TRAIL-R3 and DcR2/TRAIL-R4, lack functional death domains and act as decoy receptors for TRAIL. In this study, we examined whether TRAIL and cellular receptors expression was targeted by androgens during the apoptotic cell death process in the hormone sensitive ventral prostate. The role of androgens was investigated using two sets of experiment. (1) Androgen deprivation associated with an apoptotic process resulted in a decrease in DcR2 mRNA and protein expression in the ventral prostate 3 days after castration. Testosterone administration to castrated adult rats prevented the decrease in DcR2 mRNA and protein levels in the ventral prostate. In contrast, DcR2 expression was modified, neither in the dorsolateral nor in the anterior prostate following castration. No changes were observed in DR4, DR5, DcR1, and TRAIL mRNA and protein levels in prostate after castration. (2) A specific decrease in DcR2 expression was observed in the ventral prostate after treatment of rats with the anti-androgen flutamide. Together, the present results suggest that testosterone specifically controls DcR2 expression in the adult rat ventral prostate. Androgen withdrawal, by reducing DcR2 expression, might leave the cells vulnerable to cell death signals generated by TRAIL via its functional receptors. CI - Copyright 2005 Wiley-Liss, Inc. FAU - Vindrieux, David AU - Vindrieux D AD - Institut National de la Sante et de la Recherche Medicale, Communications Cellulaires en Biologie de la Reproduction, Faculte de Medecine Lyon-Sud, Oullins Cedex, France. FAU - Reveiller, Marie AU - Reveiller M FAU - Florin, Anne AU - Florin A FAU - Blanchard, Cecile AU - Blanchard C FAU - Ruffion, Alain AU - Ruffion A FAU - Devonec, Marian AU - Devonec M FAU - Benahmed, Mohamed AU - Benahmed M FAU - Grataroli, Renee AU - Grataroli R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Cell Physiol JT - Journal of cellular physiology JID - 0050222 RN - 0 (Androgen Antagonists) RN - 0 (Androgens) RN - 0 (Apoptosis Regulatory Proteins) RN - 0 (Membrane Glycoproteins) RN - 0 (RNA, Messenger) RN - 0 (Receptors, Tumor Necrosis Factor) RN - 0 (TNF-Related Apoptosis-Inducing Ligand) RN - 0 (TNFSF10 protein, human) RN - 0 (Tnfsf10 protein, rat) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (decoy receptor 2, rat) RN - 3XMK78S47O (Testosterone) RN - 76W6J0943E (Flutamide) SB - IM MH - Androgen Antagonists/pharmacology MH - Androgens/*pharmacology MH - Animals MH - Apoptosis MH - Apoptosis Regulatory Proteins/*metabolism/physiology MH - Castration MH - Flutamide/pharmacology MH - HeLa Cells MH - Humans MH - Male MH - Membrane Glycoproteins/*metabolism/physiology MH - Prostate/cytology/*metabolism MH - RNA, Messenger/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Receptors, Tumor Necrosis Factor/genetics/*metabolism MH - Reproducibility of Results MH - TNF-Related Apoptosis-Inducing Ligand MH - Testosterone/pharmacology MH - Tumor Necrosis Factor-alpha/*metabolism/physiology EDAT- 2005/10/26 09:00 MHDA- 2006/04/25 09:00 CRDT- 2005/10/26 09:00 PHST- 2005/10/26 09:00 [pubmed] PHST- 2006/04/25 09:00 [medline] PHST- 2005/10/26 09:00 [entrez] AID - 10.1002/jcp.20520 [doi] PST - ppublish SO - J Cell Physiol. 2006 Mar;206(3):709-17. doi: 10.1002/jcp.20520.