REGULATION OF SEMINIFEROUS TUBULAR FUNCTION BY FSH AND ANDROGEN

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Authors:
V. HANSSON
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,
S. C. WEDDINGTON
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,
W. S. McLEAN
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A. A. SMITH
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S. N. NAYFEH
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F. S. FRENCH
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, and
E. M. RITZÉN
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DOI:
https://doi.org/10.1530/jrf.0.0440363
Volume/Issue:
Volume 44: Issue 2
Page Range:
363–375
Article Type:
Research Article
Online Publication Date:
Aug 1975
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Summary.

Seminiferous tubules contain a cytoplasmic androgen receptor similar to the receptors in the epididymis and ventral prostate. The presence of a cytoplasmic receptor indicates that androgens maintain spermatogenesis by a direct action on certain types of cells within the seminiferous tubule. The Sertoli cell appears to be one of the cell types containing androgen receptors and the receptor might also be present in spermatogonia, primary spermatocytes, or peritubular cells. The Sertoli cell is stimulated by FSH to produce an androgen-binding protein which may serve to increase the accumulation of androgen in the seminiferous epithelium and make it available for binding by intracellular androgen receptors. This may be a way in which FSH enhances the action of androgen on spermatogenesis. Androgens act on the Sertoli cell to increase its response to FSH. This action of androgens on the Sertoli cell results in increased production of androgen-binding protein and may enhance the production of other substances which exert trophic effects on spermatogenesis.

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Print ISSN:
1470-1626
Online ISSN:
1741-7899