A role for the mTOR pathway in surface expression of AMPA receptors.

Abstract:

:Delivery of alpha-amino-3-hydroxy-5-methylisoxazole-4-proprionate receptors (AMPARs) to the synapse is a critical factor controlling synaptic strength. It is now established that blockade of synaptic activity increases the surface expression of AMPARs. Factors modulating the delivery, insertion and expression of AMPARs are not completely known. Using immunohistochemical techniques, we first confirmed rapamycin-mediated inhibition of the mammalian target of rapamycin (mTOR) pathway in cortical neuronal culture. We then demonstrated that acute AMPAR activity blockade increased the synaptic expression of GluR2/3 subunits and rapamycin significantly reduced this expression. Our results suggest a role for the mTOR pathway in surface expression of AMPA receptors on cortical neurons.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Wang Y,Barbaro MF,Baraban SC

doi

10.1016/j.neulet.2006.03.011

subject

Has Abstract

pub_date

2006-06-19 00:00:00

pages

35-9

issue

1-2

eissn

0304-3940

issn

1872-7972

pii

S0304-3940(06)00252-7

journal_volume

401

pub_type

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