Reference : Glycine Triggers an Intracellular Calcium Influx in Oligodendrocyte Progenitor Cells ...
Scientific journals : Article
Life sciences : Anatomy (cytology, histology, embryology...) & physiology
http://hdl.handle.net/2268/4915
Glycine Triggers an Intracellular Calcium Influx in Oligodendrocyte Progenitor Cells Which Is Mediated by the Activation of Both the Ionotropic Glycine Receptor and Na+-Dependent Transporters
English
Belachew, Shibeshih mailto [Université de Liège - ULg > Département des sciences cliniques > Neurologie >]
Malgrange, Brigitte mailto [Université de Liège - ULg > > CNCM/ Centre fac. de rech. en neurobiologie cell. et moléc. >]
Rigo, Jean-Michel [Universiteit Hasselt - UH > > > >]
Rogister, Bernard mailto [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Biochimie et physiologie générales, et biochimie humaine >]
Leprince, Pierre mailto [Université de Liège - ULg > > CNCM/ Centre fac. de rech. en neurobiologie cell. et moléc. >]
Hans, Grégory mailto [Centre Hospitalier Universitaire de Liège - CHU > > Anesthésie et réanimation >]
Nguyen, Laurent mailto [Université de Liège - ULg > Département des sciences cliniques > Neurologie >]
Moonen, Gustave mailto [Université de Liège - ULg > Département des sciences cliniques > Neurologie - Doyen de la Faculté de Médecine]
Jun-2000
European Journal of Neuroscience
12
6
1924-30
Yes (verified by ORBi)
International
0953-816X
[en] Oligodendrocyte ; Neurotransmitter ; patch-clamp
[en] Using fluo-3 calcium imaging, we demonstrate that glycine induces an increase in intracellular calcium concentration ([Ca2+]i) in cortical oligodendrocyte progenitor (OP) cells. This effect results from a calcium entry through voltage-gated calcium channels (VGCC), as it is observed only in OP cells expressing such channels, and it is abolished either by removal of calcium from the extracellular medium or by application of an L-type VGCC blocker. Glycine-triggered Ca2+ influx in OP cells actually results from an initial depolarization that is the consequence of the activation of both the ionotropic glycine receptor (GlyR) and Na+-dependent transporters, most probably the glycine transporters 1 (GLYT1) and/or 2 (GLYT2) which are colocalized in these cells. Through this GlyR- and transporter-mediated effect on OP intrcellular calcium concentration [Ca2+]i, glycine released by neurons may, as well as other neurotransmitters, serve as a signal between neurons and OP during development.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers ; Students
http://hdl.handle.net/2268/4915

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