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Müller Glial Cells Participate in Retinal Waves via Glutamate Transporters and AMPA Receptors.

Authors :
Zhang, Rong-wei
Du, Wen-jie
Prober, David A.
Du, Jiu-lin
Source :
Cell Reports; Jun2019, Vol. 27 Issue 10, p2871-2871, 1p
Publication Year :
2019

Abstract

Retinal waves, the spontaneous patterned neural activities propagating among developing retinal ganglion cells (RGCs), instruct the activity-dependent refinement of visuotopic maps. Although it is known that the wave is initiated successively by amacrine cells and bipolar cells, the behavior and function of glia in retinal waves remain unclear. Using multiple in vivo methods in larval zebrafish, we found that Müller glial cells (MGCs) display wave-like spontaneous activities, which start at MGC processes within the inner plexiform layer, vertically spread to their somata and endfeet, and horizontally propagate into neighboring MGCs. MGC waves depend on glutamatergic signaling derived from bipolar cells. Moreover, MGCs express both glia-specific glutamate transporters and the AMPA subtype of glutamate receptors. The AMPA receptors mediate MGC calcium activities during retinal waves, whereas the glutamate transporters modulate the occurrence of retinal waves. Thus, MGCs can sense and regulate retinal waves via AMPA receptors and glutamate transporters, respectively. • Müller glial cells (MGCs) display spontaneous wave activities • AMPA receptors of MGCs mediate calcium activities in MGCs during retinal waves • Glutamate transporters of MGCs modulate the occurrence of retinal waves • MGCs can sense and regulate retinal waves The behavior and function of glial cells in spontaneous retinal waves remain unclear. Using in vivo calcium imaging and electrophysiological recording in larval zebrafish, Zhang et al. show that Müller glial cells can participate in and modulate retinal waves, respectively, via AMPA receptors and glutamate transporters on their own processes. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
26391856
Volume :
27
Issue :
10
Database :
Complementary Index
Journal :
Cell Reports
Publication Type :
Academic Journal
Accession number :
137093886
Full Text :
https://doi.org/10.1016/j.celrep.2019.05.011