Document Detail


Steroids and glial cell function.
MedLine Citation:
PMID:  16906540     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Hormonal and locally produced steroids act in the nervous system as neuroendocrine regulators, as trophic factors and as neuromodulators and have a major impact on neural development and function. Glial cells play a prominent role in the local production of steroids and in the mediation of steroid effects on neurons and other glial cells. In this review, we examine the role of glia in the synthesis and metabolism of steroids and the functional implications of glial steroidogenesis. We analyze the mechanisms of steroid signaling on glia, including the role of nuclear receptors and the mechanisms of membrane and cytoplasmic signaling mediated by changes in intracellular calcium levels and activation of signaling kinases. Effects of steroids on functional parameters of glia, such as proliferation, myelin formation, metabolism, cytoskeletal reorganization, and gliosis are also reviewed, as well as the implications of steroid actions on glia for the regulation of synaptic function and connectivity, the regulation of neuroendocrine events, and the response of neural tissue to injury.
Authors:
Luis M Garcia-Segura; Roberto C Melcangi
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review    
Journal Detail:
Title:  Glia     Volume:  54     ISSN:  0894-1491     ISO Abbreviation:  Glia     Publication Date:  2006 Nov 
Date Detail:
Created Date:  2006-09-05     Completed Date:  2006-11-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8806785     Medline TA:  Glia     Country:  United States    
Other Details:
Languages:  eng     Pagination:  485-98     Citation Subset:  IM    
Affiliation:
Instituto Cajal, C.S.I.C., Madrid, Spain. lmgs@cajal.csic.es
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MeSH Terms
Descriptor/Qualifier:
Animals
Calcium Signaling / physiology
Central Nervous System / metabolism*
Female
Humans
Male
Neuroglia / metabolism*
Neuroprotective Agents / metabolism
Receptors, Cytoplasmic and Nuclear / metabolism
Sex Characteristics
Signal Transduction / physiology
Steroids / biosynthesis,  metabolism*
Chemical
Reg. No./Substance:
0/Neuroprotective Agents; 0/Receptors, Cytoplasmic and Nuclear; 0/Steroids

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