Publication Date:
1982-10-22
Description:
Gonadotropic activation of the adult rat testis in vitro and in vivo is followed by down-regulation of luteinizing hormone receptors and decreased androgen responses to subsequent hormonal stimulation. In contrast, treatment of cultured fetal testes with gonadotropins and dibutyryl adenosine 3',5'-monophosphate enhanced steroidogenic responsiveness and did not cause the luteinizing hormone-receptor loss and desensitization that is characteristic of the adult gonad. The analysis of gonadotropin receptors and action in cultured fetal testis cells facilitates developmental studies of gonadal function, and has revealed significant differences in the responses of fetal and adult Leydig cells to gonadotropic regulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Warren, D W -- Dufau, M L -- Catt, K J -- 1F33-HD06192/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1982 Oct 22;218(4570):375-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6289438" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Bucladesine/pharmacology
;
Cell Differentiation/drug effects
;
Cells, Cultured
;
Chorionic Gonadotropin/pharmacology
;
Hydroxyprogesterones/biosynthesis
;
Leydig Cells/*drug effects
;
Luteinizing Hormone/pharmacology
;
Male
;
Progesterone/biosynthesis
;
Rats
;
Receptors, Cell Surface/*drug effects/metabolism
;
Receptors, LH
;
Testis/*embryology/metabolism
;
Testosterone/biosynthesis
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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