## Abstract The present study was aimed at characterizing the GABA~A~ receptor‐mediated currents in acutely isolated glial (Müller) cells of the human retina and investigating their subcellular localization across the Müller cell membrane. Extracellular application of GABA evoked two current respon
Glyt-1 expression in cultured human Müller cells and intact retinae
✍ Scribed by Peter Reye; Philip Penfold; David V. Pow
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 217 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0894-1491
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
In this study, we demonstrate that Müller cells cultured from human retinas are capable of strongly expressing the glycine transporter Glyt‐1 as assessed by immunocytochemistry. By contrast, intact normal and pathological human retinas exhibit Glyt‐1 immunoreactivity only in neurons. These data suggest that Glyt‐1 expression in cultured Müller cells is an epiphenomenon associated with culturing in vitro, rather than a normal physiological or even pathophysiological phenomenon in vivo. GLIA 34:311–315, 2001. © 2001 Wiley‐Liss, Inc.
📜 SIMILAR VOLUMES
Rapid termination of the synaptic action of glutamate (Glu) and glycine (Gly) is achieved by uptake into the presynaptic terminal and glial cells. In the vertebrate CNS, Gly acts both as an inhibitory neurotransmitter and as a Glu modulator or coagonist at postsynaptic N-methyl-D-aspartate (NMDA) re
We characterized morphological effects of the endogenous excitotoxin, glutamate in ex vivo retinal segments prepared from 30-day-old rats. Initial changes induced by glutamate consisted of reversible, sodium-dependent Mu ¨ller cell swelling. This glial swelling was mimicked by glutamate transport su
## Abstract Retinal glial Müller cells are characterized by dominant K^+^ conductances. The cells may undergo changes of their membrane currents during ontogeny and gliosis as described in rabbit and man. Although the rat retina is often used in physiological experiments, the electrophysiology of r
## Abstract The retinae and brains of larval and adult amphibians survive long‐lasting anoxia; this finding suggests the presence of functional K~ATP~ channels. We have previously shown with immunocytochemistry studies that retinal glial (Müller) cells in adult frogs express the K~ATP~ channel and