PMID- 15724080 OWN - NLM STAT- MEDLINE DCOM- 20051003 LR - 20190608 IS - 0916-8818 (Print) IS - 0916-8818 (Linking) VI - 51 IP - 3 DP - 2005 Jun TI - Immunolocalization of steroidogenic enzymes P450scc, 3betaHSD, P450c17, and P450arom in Gottingen miniature pig testes. PG - 299-304 AB - The objective of this study was to investigate immunolocalization of steroidogenic enzymes in Gottingen miniature (GM) pig testes. Testes of 6 adult GM pigs were obtained in September 1996 (n=2), February (n=2) and June (n=2), 1997. Steroidogenic enzymes were immunolocalized using polyclonal antisera raised against bovine adrenal cholesterol side-chain cleavage cytochrome P450 (P450scc), human placental 3beta-hydroxysteroid dehydrogenase (3betaHSD), porcine testicular 17alpha-hydroxylase cytochrome P450 (P450c17), and human placental aromatase cytochrome P450 (P450arom). Histologically, all types of spermatogenic cells including mature-phase spermatozoa in seminiferous tubules were observed in all testes throughout the year. Moreover, P450scc, 3betaHSD, P450c17and P450arom were identified in Leydig cells but not in Sertoli cells of all testes. These results suggested that adult GM pig testes have the ability to produce germ cells throughout the year, and the synthesis of progestin, androgen and estrogen occurs in the Leydig cells of GM pig testes. FAU - Weng, Qiang AU - Weng Q AD - Faculty of Biological Science and Technology, Beijing Forestry University, China. FAU - Medan, Mohamed S AU - Medan MS FAU - Watanabe, Gen AU - Watanabe G FAU - Tsubota, Toshio AU - Tsubota T FAU - Tanioka, Yoshikuni AU - Tanioka Y FAU - Taya, Kazuyoshi AU - Taya K LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20050222 PL - Japan TA - J Reprod Dev JT - The Journal of reproduction and development JID - 9438792 RN - EC 1.1.- (3-Hydroxysteroid Dehydrogenases) RN - EC 1.14.14.1 (Aromatase) RN - EC 1.14.14.19 (Steroid 17-alpha-Hydroxylase) RN - EC 1.14.15.6 (Cholesterol Side-Chain Cleavage Enzyme) SB - IM MH - 3-Hydroxysteroid Dehydrogenases/analysis MH - Animals MH - Aromatase/analysis MH - Cholesterol Side-Chain Cleavage Enzyme/analysis MH - Immunohistochemistry MH - Leydig Cells/chemistry/*enzymology MH - Male MH - Steroid 17-alpha-Hydroxylase/analysis MH - Swine MH - Swine, Miniature/anatomy & histology/*metabolism MH - Testis/chemistry/cytology/*enzymology EDAT- 2005/02/23 09:00 MHDA- 2005/10/04 09:00 CRDT- 2005/02/23 09:00 PHST- 2005/02/23 09:00 [pubmed] PHST- 2005/10/04 09:00 [medline] PHST- 2005/02/23 09:00 [entrez] AID - JST.JSTAGE/jrd/16077 [pii] AID - 10.1262/jrd.16077 [doi] PST - ppublish SO - J Reprod Dev. 2005 Jun;51(3):299-304. doi: 10.1262/jrd.16077. Epub 2005 Feb 22.