Vesicular glutamate transporters play a role in neuronal differentiation of cultured SVZ-derived neural precursor cells

2017 | journal article. A publication with affiliation to the University of Göttingen.

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​Vesicular glutamate transporters play a role in neuronal differentiation of cultured SVZ-derived neural precursor cells​
Sanchez-Mendoza, E. H.; Bellver-Landete, V.; Arce, C.; Doeppner, T. R.; Hermann, D. M. & Jesus Oset-Gasque, M.​ (2017) 
PLoS ONE12(5) art. e0177069​.​ DOI: https://doi.org/10.1371/journal.pone.0177069 

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Authors
Sanchez-Mendoza, Eduardo H.; Bellver-Landete, Victor; Arce, Carmen; Doeppner, Thorsten R.; Hermann, Dirk M.; Jesus Oset-Gasque, Maria
Abstract
The role of glutamate in the regulation of neurogenesis is well-established, but the role of vesicular glutamate transporters (VGLUTs) and excitatory amino acid transporters (EAATs) in controlling adult neurogenesis is unknown. Here we investigated the implication of VGLUTs in the differentiation of subventricular zone (SVZ)-derived neural precursor cells (NPCs). Our results show that NPCs express VGLUT1-3 and EAAT1-3 both at the mRNA and protein level. Their expression increases during differentiation closely associated with the expression of marker genes. In expression analyses we show that VGLUT1 and VGLUT2 are preferentially expressed by cultured SVZ-derived doublecortin+ neuroblasts, while VGLUT3 is found on GFAP+ glial cells. In cultured NPCs, inhibition of VGLUT by Evans Blue increased the mRNA level of neuronal markers doublecortin, B3T and MAP2, elevated the number of NPCs expressing doublecortin protein and promoted the number of cells with morphological appearance of branched neurons, suggesting that VGLUT function prevents neuronal differentiation of NPCs. This survival-and differentiation-promoting effect of Evans blue was corroborated by increased AKT phosphorylation and reduced MAPK phosphorylation. Thus, under physiological conditions, VGLUT1-3 inhibition, and thus decreased glutamate exocytosis, may promote neuronal differentiation of NPCs.
Issue Date
2017
Status
published
Publisher
Public Library Science
Journal
PLoS ONE 
ISSN
1932-6203

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