Prion Protein Regulates Glutamate-Dependent Lactate Transport of Astrocytes
Copyright policy )Prion Protein Regulates Glutamate-Dependent Lactate Transport of Astrocytes
Prion-related protein (PrP) is a neural cell adhesion molecule involved in neurite outgrowth, neuronal survival, and synaptic function. In search of novel binding partners for PrP, we identified the α2/β2-Na+/K+-ATPase and showed that this astroglial ATPase interacts directly with the immunoglobulin superfamily adhesion molecule basigin. In cultured astrocytes, PrP is involved in regulating lactate transport via the astroglial monocarboxylate transporter 1 (MCT1) and in conjunction with α2/β2-ATPase and basigin. Lactate transport via MCT1 is glutamate dependent and regulated by glutamate receptor 2 (GluR2)-containing AMPA receptors with which PrP interacts. The functional interplay between PrP, GluR2, α2/β2-ATPase, basigin, and MCT1 in regulating lactate transport of astrocytes may be functional in the metabolic cross talk between astrocytes and neurons, most likely under stress.
- Universität Hamburg Germany
- University of Paris-Saclay France
- Université Paris-Saclay France
Monocarboxylic Acid Transporters, Neurons, Symporters, Prions, Glutamic Acid, Mice, Mutant Strains, Mice, Inbred C57BL, Mice, Protein Transport, Astrocytes, Basigin, Animals, Lactic Acid, Receptors, AMPA, Sodium-Potassium-Exchanging ATPase, Cells, Cultured
Monocarboxylic Acid Transporters, Neurons, Symporters, Prions, Glutamic Acid, Mice, Mutant Strains, Mice, Inbred C57BL, Mice, Protein Transport, Astrocytes, Basigin, Animals, Lactic Acid, Receptors, AMPA, Sodium-Potassium-Exchanging ATPase, Cells, Cultured
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