Thyroid hormone function in the rat testis

Thyroid hormones are emerging regulators of testicular function since Sertoli, germ and Leydig cells are found to express thyroid hormone receptors. These testicular cells also express deiodinases which are capable of converting the pro-hormone T4 to the active thyroid hormone T3, or inactivating T3...

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Main Authors: Ying eGao, Will M. eLee, C Yan eCheng
Format: Article
Language:English
Published: Frontiers Media S.A. 2014-11-01
Series:Frontiers in Endocrinology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fendo.2014.00188/full
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author Ying eGao
Will M. eLee
C Yan eCheng
author_facet Ying eGao
Will M. eLee
C Yan eCheng
author_sort Ying eGao
collection DOAJ
description Thyroid hormones are emerging regulators of testicular function since Sertoli, germ and Leydig cells are found to express thyroid hormone receptors. These testicular cells also express deiodinases which are capable of converting the pro-hormone T4 to the active thyroid hormone T3, or inactivating T3 or T4 to a non-biologically active form. Furthermore, thyroid hormone transporters are also found in the testis. Thus, the testis is equipped with the transporters and the enzymes necessary to maintain the optimal level of thyroid hormone in the seminiferous epithelium, as well as the specific thyroid hormone receptors to execute thyroid hormone action in response to different stages of the epithelial cycle of spermatogenesis. Studies using genetic models and/or goitrogens (e.g., PTU (propylthiouracil)) have illustrated a tight physiological relationship between thyroid hormone and testicular function, in particular Sertoli cell differentiation status, mitotic activity, gap junction function and blood-testis barrier (BTB) assembly. These findings are briefly summarized and discussed herein.
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spelling doaj.art-9f0758f93ca247db86b471f8a705f3d82022-12-22T01:19:00ZengFrontiers Media S.A.Frontiers in Endocrinology1664-23922014-11-01510.3389/fendo.2014.00188118995Thyroid hormone function in the rat testisYing eGao0Will M. eLee1C Yan eCheng2Population CouncilUniversity of Hong KongPopulation CouncilThyroid hormones are emerging regulators of testicular function since Sertoli, germ and Leydig cells are found to express thyroid hormone receptors. These testicular cells also express deiodinases which are capable of converting the pro-hormone T4 to the active thyroid hormone T3, or inactivating T3 or T4 to a non-biologically active form. Furthermore, thyroid hormone transporters are also found in the testis. Thus, the testis is equipped with the transporters and the enzymes necessary to maintain the optimal level of thyroid hormone in the seminiferous epithelium, as well as the specific thyroid hormone receptors to execute thyroid hormone action in response to different stages of the epithelial cycle of spermatogenesis. Studies using genetic models and/or goitrogens (e.g., PTU (propylthiouracil)) have illustrated a tight physiological relationship between thyroid hormone and testicular function, in particular Sertoli cell differentiation status, mitotic activity, gap junction function and blood-testis barrier (BTB) assembly. These findings are briefly summarized and discussed herein.http://journal.frontiersin.org/Journal/10.3389/fendo.2014.00188/fullBlood-Testis BarrierSpermatogenesisTestisThyroid Hormonesgap junctionseminiferous epithelial cycle.
spellingShingle Ying eGao
Will M. eLee
C Yan eCheng
Thyroid hormone function in the rat testis
Frontiers in Endocrinology
Blood-Testis Barrier
Spermatogenesis
Testis
Thyroid Hormones
gap junction
seminiferous epithelial cycle.
title Thyroid hormone function in the rat testis
title_full Thyroid hormone function in the rat testis
title_fullStr Thyroid hormone function in the rat testis
title_full_unstemmed Thyroid hormone function in the rat testis
title_short Thyroid hormone function in the rat testis
title_sort thyroid hormone function in the rat testis
topic Blood-Testis Barrier
Spermatogenesis
Testis
Thyroid Hormones
gap junction
seminiferous epithelial cycle.
url http://journal.frontiersin.org/Journal/10.3389/fendo.2014.00188/full
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AT willmelee thyroidhormonefunctionintherattestis
AT cyanecheng thyroidhormonefunctionintherattestis