The sticky issue of neurosteroids and GABA(A) receptors.

The sticky issue of neurosteroids and GABA(A) receptors.
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DOI:
10.1016/j.tins.2010.03.005
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发表时间:
2010-07
影响因子:
15.9
通讯作者:
Zorumski CF
Zorumski CF
中科院分区:
医学1区
文献类型:
--
作者:
Chisari M;Eisenman LN;Covey DF;Mennerick S;Zorumski CF

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Endogenous neurosteroids and their synthetic analogs (neuroactive steroids) are potent modulators of GABAA receptors. Thus, they are of physiological and clinical relevance for their ability to modulate inhibitory function in the central nervous system. Despite their importance, fundamental issues of neurosteroid actions remain unresolved. Recent evidence suggests that glutamatergic principal neurons, rather than glia, are major sources of neurosteroid synthesis. Other recent studies have identified putative neurosteroid binding sites on GABAA receptors. In this Opinion, we argue that neurosteroids require a membranous route of access to transmembrane domain binding sites within GABAA receptors. This has implications for the design of future neuroactive steroids, since the lipid solubility and related accessibility properties of the ligand may be key determinants of receptor modulation.
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