Follicle-Stimulating Hormone Induces Spermatogenesis Mediated by Androgen Production in Japanese Eel, Anguilla japonica.

Follicle-Stimulating Hormone Induces Spermatogenesis Mediated by Androgen Production in Japanese Eel, Anguilla japonica. Research Abstract Details 

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Follicle-Stimulating Hormone Induces Spermatogenesis Mediated by Androgen Production in Japanese Eel, Anguilla japonica. Abstract Text:

Takashi Ohta,Hideyuki Miyake,Chiemi Miura,Hiroyasu Kamei,Katsumi Aida,Takeshi Miura,Takashi Ohta,Hideyuki Miyake,Chiemi Miura,Hiroyasu Kamei,Katsumi Aida,Takeshi Miura,Takashi Ohta,Hideyuki Miyake,Chiemi Miura,Hiroyasu Kamei,Katsumi Aida,Takeshi Miura,

Follicle-stimulating hormone (FSH) plays important roles in spermatogenesis. However, the biologic activity of FSH can vary in different vertebrate classes, and the definitive function of FSH has not been established. In this study, we investigated the functions of FSH on spermatogenesis using an in vitro culture system for Japanese eel testis. The eel Fsh receptor was expressed in testis tissue during the whole process of spermatogenesis, mainly by Leydig cells that produce steroid hormones and by Sertoli cells surrounding type A spermatogonia and early type B spermatogonia. In an in vitro organ culture, recombinant eel Fsh (r-eFsh) induced complete spermatogenesis from the proliferation of spermatogonia to spermiogenesis during 36 days of culture; also, spermatozoa were observed in the testicular fragments. Spermatogenesis induced by r-eFsh was inhibited by trilostane, a specific inhibitor of 3beta-hydroxysteroid dehydrogenase. However, trilostane did not inhibit spermatogenesis induced by 11-ketotestosterone. These results clearly show that the main function of FSH in eel is to induce spermatogenesis via stimulating androgen production.

Follicle-Stimulating Hormone Induces Spermatogenesis Mediated by Androgen Production in Japanese Eel, Anguilla japonica. Publishing Authors By Initials

T Ohta,H Miyake,C Miura,H Kamei,K Aida,T Miura,T Ohta,H Miyake,C Miura,H Kamei,K Aida,T Miura,T Ohta,H Miyake,C Miura,H Kamei,K Aida,T Miura,

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Follicle-Stimulating Hormone Induces Spermatogenesis Mediated by Androgen Production in Japanese Eel, Anguilla japonica. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Biology of reproduction

VOLUME: 77

Page Numbers: 970-7

Journal Abbreviation: Biol. Reprod.

ISSN: 0006-3363

DAY: 29

MONTH: 08

YEAR: 2007

Follicle-Stimulating Hormone Induces Spermatogenesis Mediated by Androgen Production in Japanese Eel, Anguilla japonica. Information

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LANGUAGE: eng

NlmUniqueID: 207224

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Grant and Affiliation Information for Follicle-Stimulating Hormone Induces Spermatogenesis Mediated by Androgen Production in Japanese Eel, Anguilla japonica.

AFFILIATION: Laboratory of Fish Reproductive Physiology, Ehime University, Ehime 790-8566, Japan.

Country: United States

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MEDLINETA: Biol Reprod

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