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Article Dans Une Revue Glia Année : 2017

Suppression of SNARE-dependent exocytosis in retinal glial cells and its effect on ischemia-induced neurodegeneration.

Lysann Wagner
  • Fonction : Auteur
Thomas Pannicke
  • Fonction : Auteur
Vanessa Rupprecht
  • Fonction : Auteur
Ina Frommherz
  • Fonction : Auteur
Cornelia Volz
  • Fonction : Auteur
Peter Illes
Johannes Hirrlinger
  • Fonction : Auteur
Herbert Jägle
  • Fonction : Auteur
Veronica Egger
  • Fonction : Auteur
Philip G Haydon
  • Fonction : Auteur
Antje Grosche
  • Fonction : Auteur

Résumé

Nervous tissue is characterized by a tight structural association between glial cells and neurons. It is well known that glial cells support neuronal functions, but their role under pathologic conditions is less well understood. Here, we addressed this question in vivo using an experimental model of retinal ischemia and transgenic mice for glia-specific inhibition of soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE)-dependent exocytosis. Transgene expression reduced glutamate, but not ATP release from single Müller cells, impaired glial volume regulation under normal conditions and reduced neuronal dysfunction and death in the inner retina during the early stages of ischemia. Our study reveals that the SNARE-dependent exocytosis in glial cells contributes to neurotoxicity during ischemia in vivo and suggests glial exocytosis as a target for therapeutic approaches.

Dates et versions

hal-02884490 , version 1 (29-06-2020)

Identifiants

Citer

Lysann Wagner, Thomas Pannicke, Vanessa Rupprecht, Ina Frommherz, Cornelia Volz, et al.. Suppression of SNARE-dependent exocytosis in retinal glial cells and its effect on ischemia-induced neurodegeneration.. Glia, 2017, 65 (7), pp.1059-1071. ⟨10.1002/glia.23144⟩. ⟨hal-02884490⟩

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