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GLIA modulates synaptic transmission

AuthorsPerea, Gertrudis ; Araque, Alfonso
Issue Date2010
CitationBrain Research Reviews 63: 93- 102 (2010)
AbstractThe classical view of glial cells as simple supportive cells for neurons is being replaced by a new vision in which glial cells are active elements involved in the physiology of the nervous system. This new vision is based on the fact that astrocytes, a subtype of glial cells in the CNS, are stimulated by synaptically released neurotransmitters, which increase the astrocyte Ca2+ levels and stimulate the release of gliotransmitters that regulate synaptic efficacy and plasticity. Consequently, our understanding of synaptic function, previously thought to exclusively result from signaling between neurons, has also changed to include the bidirectional signaling between neurons and astrocytes. Hence, astrocytes have been revealed as integral elements involved in the synaptic physiology, therefore contributing to the processing, transfer and storage of information by the nervous system. Reciprocal communication between astrocytes and neurons is therefore part of the intercellular signaling processes involved in brain function. © 2009 Elsevier B.V.
Identifiersdoi: 10.1016/j.brainresrev.2009.10.005
issn: 0165-0173
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