Journal
MOLECULAR NEUROBIOLOGY
Volume 53, Issue 2, Pages 1124-1131Publisher
SPRINGER
DOI: 10.1007/s12035-014-9071-4
Keywords
Na+, K+-ATPase; Glutamate transporter; Coupling/uncoupling; Glutamate uptake; Interaction
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Funding
- Natural Science Foundation of China [NSFC 81402886]
- Natural Science Foundation of Hebei Province [H2014208004, H2012208080]
- Hebei Education Department Science Foundation [QN2014093]
- Hebei University of Science and Technology Discipline Construction Office
- State Key Laboratory Breeding Base-Hebei Key Laboratory of Molecular Chemistry for Drug
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The glutamate (Glu) transporters GLAST and GLT-1, as the two most important transporters in brain tissue, transport Glu from the extracellular space into the cell protecting against Glu toxicity. Furthermore, GLAST and GLT-1 are sodium-dependent Glu transporters (GluTs) that rely on sodium and potassium gradients generated principally by Na+, K+-ATPase to generate ion gradients that drive Glu uptake. There is an interaction between Na+, K+-ATPase and GluTs to modulate Glu uptake, and Na+, K+-ATPase alpha, beta or gamma subunit can be directly coupled to GluTs, co-localizing with GLAST or GLT-1 in vivo to form a macromolecular complex and operate as a functional unit to regulate glutamatergic neurotransmission. Therefore, GluTs/Na+, K+-ATPase may be involved in the neuroprotective effect as a potential regulatory target of Glu uptake in neurodegenerative diseases induced by Glu-mediated neurotoxicity as the final common pathway.
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