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Open Access Green as soon as Postprint is submitted to ZB.
Bergmann glial AMPA receptors are required for fine motor coordination.
Science 337, 749-753 (2012)
The impact of glial neurotransmitter receptors in vivo is still elusive. In the cerebellum, Bergmann glial (BG) cells express alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)-type glutamate receptors (AMPARs) composed exclusively of GluA1 and/or GluA4 subunits. With the use of conditional gene inactivation, we found that the majority of cerebellar GluA1/A4-type AMPARs are expressed in BG cells. In young mice, deletion of BG AMPARs resulted in retraction of glial appendages from Purkinje cell (PC) synapses, increased amplitude and duration of evoked PC currents, and a delayed formation of glutamatergic synapses. In adult mice, AMPAR inactivation also caused retraction of glial processes. The physiological and structural changes were accompanied by behavioral impairments in fine motor coordination. Thus, BG AMPARs are essential to optimize synaptic integration and cerebellar output function throughout life.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Kainate Receptors ; Plasticity ; Cerebellum ; Cells ; Communication
ISSN (print) / ISBN
0036-8075
e-ISSN
1095-9203
Journal
Science
Quellenangaben
Volume: 337,
Issue: 6095,
Pages: 749-753
Publisher
American Association for the Advancement of Science (AAAS)
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Stem Cell Research (ISF)