期刊
JOURNAL OF NEUROSCIENCE RESEARCH
卷 95, 期 11, 页码 2152-2158出版社
WILEY
DOI: 10.1002/jnr.24051
关键词
astrocytes; brain slices; glia; exocytosis; vesicles; vesicle mobility
资金
- Slovenian Research Agency [P3 0310, J3 3632, J3 4146, J3 7605]
- Agence Nationale pour la Recherche [ANR-09-MNPS-022-01]
- CNRS
- Universite Aix-Marseille
- Fondation pour la Recherche Medicale
Astrocytes are excitable neural cells that contribute to brain information processing via bidirectional communication with neurons. This involves the release of glio-signaling molecules that affect synapses patterning and activity. Mechanisms mediating the release of these molecules likely consist of non-vesicular and vesicular-based mechanisms. It is the vesicle-based regulated exocytosis that is an evolutionary more complex process. It is well established that the release of glio-signaling molecules has profound effects on information processing in different brain regions (e.g., hippocampal astrocytes contribute to long-term potentiation [LTP]), which has traditionally been considered as one of the cellular mechanisms underlying learning and memory. However, the paradigm of vesicle-based regulated release of gliosignaling molecules from astrocytes is still far from being unanimously accepted. One of the most important questions is to what extent can the conclusions obtained from cultured astrocytes be translated to in vivo conditions. Here, we overview the properties of vesicle mobility and their fusion with the plasma membrane in cultured astrocytes and compare these parameters to those recorded in astrocytes from acute brain hippocampal slices. The results from both experimental models are similar, which validates experiments on isolated astrocytes and further supports arguments in favor of in vivo vesicle-based exocytotic release of gliosignaling molecules. (C) 2017 Wiley Periodicals, Inc.
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