Estradiol-17beta stimulates the renewal of spermatogonial stem cells in males.

Abstract:

:In this work, we examined the functions of the female hormone "estrogen" on spermatogenesis of the Japanese eel (Anguilla japonica). Estradiol-17beta (E(2)), a natural estrogen in vertebrates, was present in the serum and its receptor was expressed in the testis during the whole process of spermatogenesis. Spermatogonial stem cell renewal was promoted by E(2) implantation but was suppressed by tamoxifen (an antagonist of estrogen). In vitro, 10 pg/ml of E(2) was sufficient to induce spermatogonial stem cell division in cultured testicular tissue, therefore confirming the in vivo observations. These results clearly show that estrogen is an indispensable "male hormone" in the early spermatogenetic cycle.

authors

Miura T,Miura C,Ohta T,Nader MR,Todo T,Yamauchi K

doi

10.1006/bbrc.1999.1494

subject

Has Abstract

pub_date

1999-10-14 00:00:00

pages

230-4

issue

1

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(99)91494-8

journal_volume

264

pub_type

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