PMID- 11319133 OWN - NLM STAT- MEDLINE DCOM- 20010816 LR - 20190513 IS - 0006-3363 (Print) IS - 0006-3363 (Linking) VI - 64 IP - 5 DP - 2001 May TI - Retinoid receptors involved in the effects of retinoic acid on rat testis development. PG - 1307-14 AB - We have previously shown that retinoic acid (RA) is able to act on the development of Leydig, Sertoli, and germ cells in the testis in culture (Livera et al., Biol Reprod 2000; 62:1303-1314). To identify which receptors mediate these effects, we have now added selective agonists and antagonists of retinoic acid receptors (RARs) or retinoid X receptors (RXRs) in the same organotypic culture system. The RAR alpha agonist mimicked most of the effects of RA on the cultured fetal or neonatal testis, whereas the RAR beta, gamma, and pan RXR agonists did not. The RAR alpha agonist decreased the testosterone production, the number of gonocytes, and the cAMP response to FSH of fetal testis explanted at 14.5 days postconception (dpc). The RAR alpha agonist disorganized the cords of the 14.5-dpc cultured testis and increased the cord diameter in cultured 3-days-postpartum (dpp) testis in the same way as RA. All these RA effects could be reversed by an RAR alpha antagonist and were unchanged by an RAR beta/gamma antagonist. The RAR beta agonist, however, increased Sertoli cell proliferation in the 3-dpp testis in the same way as RA, and this effect was blocked by an RAR beta antagonist. The RAR gamma and the pan RXR agonists had no selective effect. These results suggest that all the effects of RA on development of the fetal and neonatal testis are mediated via RAR alpha, except for its effect on Sertoli cell proliferation, which involves RAR beta. FAU - Livera, G AU - Livera G AD - Universite Paris 7 and INSERM-INRA U 418, Tour 33/43, case 7126, 75251 Paris Cedex 05, France. FAU - Rouiller-Fabre, V AU - Rouiller-Fabre V FAU - Habert, R AU - Habert R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Biol Reprod JT - Biology of reproduction JID - 0207224 RN - 0 (Receptors, Retinoic Acid) RN - 0 (Retinoid X Receptors) RN - 0 (Retinoids) RN - 0 (Transcription Factors) RN - 3XMK78S47O (Testosterone) RN - 5688UTC01R (Tretinoin) RN - 9002-67-9 (Luteinizing Hormone) RN - 9002-68-0 (Follicle Stimulating Hormone) RN - E0399OZS9N (Cyclic AMP) SB - IM MH - Animals MH - Animals, Newborn MH - Cell Division/drug effects MH - Culture Techniques MH - Cyclic AMP/metabolism MH - Female MH - Follicle Stimulating Hormone/pharmacology MH - Luteinizing Hormone/pharmacology MH - Male MH - Morphogenesis/drug effects MH - Rats MH - Rats, Sprague-Dawley MH - Receptors, Retinoic Acid/agonists/antagonists & inhibitors/*physiology MH - Retinoid X Receptors MH - Retinoids/pharmacology MH - Sertoli Cells/drug effects MH - Testis/*embryology/*growth & development/metabolism MH - Testosterone/biosynthesis MH - Transcription Factors/agonists/antagonists & inhibitors/physiology MH - Tretinoin/*pharmacology EDAT- 2001/04/25 10:00 MHDA- 2001/08/17 10:01 CRDT- 2001/04/25 10:00 PHST- 2001/04/25 10:00 [pubmed] PHST- 2001/08/17 10:01 [medline] PHST- 2001/04/25 10:00 [entrez] AID - 10.1095/biolreprod64.5.1307 [doi] PST - ppublish SO - Biol Reprod. 2001 May;64(5):1307-14. doi: 10.1095/biolreprod64.5.1307.