Abstract
This review focuses on the fast testosterone actions on the cell membrane principally on the Sertoli cells, its predominant effect, i.e. an increase in [Ca2+]i and the possibility of its actions being mediated by KIR (ATP) channels. The regulation of the K+ ATP channels by phosphatidylinositol-4,5-bisphosphate depletion on the cell membrane as a result of the action of testosterone, its putative receptors, and the phospholipase C - phosphatidylinositol-4,5-bisphosphate pathway are discussed. The electrostatic interaction between anionic and cationic charges on the K+ ATP modulation is also considered, in the light of testosterones effect on phospholipase C - phosphatidylinositol-4,5-bisphosphate hydrolysis. Thus, the interaction of testosterone with its putative receptors, phospholipase C, phosphatidylinositol-4,5-bisphosphate, and K+ ATP channels (or other KIR channels) in the membrane may be one of the mechanism of rapid testosterones physiological action on some classes of cells.
Keywords: atp channels, testosterone, sertoli cell, sulphonylureas, diazoxide, phospholipase c, phospholipids, intracellular calcium
Current Pharmaceutical Design
Title: Testosterone Action on the Sertoli Cell Membrane: A KIR6.x Channel Related Effect
Volume: 10 Issue: 21
Author(s): Wassermann G. F. and Loss E. S.
Affiliation:
Keywords: atp channels, testosterone, sertoli cell, sulphonylureas, diazoxide, phospholipase c, phospholipids, intracellular calcium
Abstract: This review focuses on the fast testosterone actions on the cell membrane principally on the Sertoli cells, its predominant effect, i.e. an increase in [Ca2+]i and the possibility of its actions being mediated by KIR (ATP) channels. The regulation of the K+ ATP channels by phosphatidylinositol-4,5-bisphosphate depletion on the cell membrane as a result of the action of testosterone, its putative receptors, and the phospholipase C - phosphatidylinositol-4,5-bisphosphate pathway are discussed. The electrostatic interaction between anionic and cationic charges on the K+ ATP modulation is also considered, in the light of testosterones effect on phospholipase C - phosphatidylinositol-4,5-bisphosphate hydrolysis. Thus, the interaction of testosterone with its putative receptors, phospholipase C, phosphatidylinositol-4,5-bisphosphate, and K+ ATP channels (or other KIR channels) in the membrane may be one of the mechanism of rapid testosterones physiological action on some classes of cells.
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Cite this article as:
F. G. Wassermann and S. E. Loss, Testosterone Action on the Sertoli Cell Membrane: A KIR6.x Channel Related Effect, Current Pharmaceutical Design 2004; 10 (21) . https://dx.doi.org/10.2174/1381612043383809
DOI https://dx.doi.org/10.2174/1381612043383809 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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