Title

AMPA receptor subunit GluR2 gates injurious signals in ischemic stroke

Authors

Authors

M. M. Soundarapandian; W. H. Tu; P. L. Peng; A. S. Zervos;Y. M. Lu

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Mol. Neurobiol.

Keywords

hippocampus; CA1 neurons; selective neuronal injury; AMPA receptors; Ca-21/Zn-21-permeable channels; Ca2+/Zn2+ signals; ischemic stroke; TRANSIENT FOREBRAIN ISCHEMIA; HIPPOCAMPAL PYRAMIDAL NEURONS; NITRIC-OXIDE SYNTHASE; D-ASPARTATE RECEPTORS; CELL-DEATH; CEREBRAL-ISCHEMIA; BRAIN-INJURY; AMPA/KAINATE CHANNELS; GLUTAMATE; RECEPTORS; MICE DEFICIENT; Neurosciences

Abstract

Ischemic stroke, or a brain attack, is the third leading cause of death in developed countries. A critical feature of the disease is a highly selective pattern of neuronal loss; certain identifiable subsets of neurons-particularly CA1 pyramidal neurons in the hippocampus-are severely damaged, whereas others remain intact. A key step in this selective neuronal injury is Ca2+/Zn2+ entry into vulnerable neurons through alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptor channels, a principle subtype of glutamate receptors. AMPA receptor channels are assembled from glutamate receptor (GluR)1, -2, -3, and -4 subunits. Circumstance data have indicated that the GluR2 subunits dictate Ca2+/Zn2+ permeability of AMPA receptor channels and gate injurious Ca2+/Zn2+ signals in vulnerable neurons. Therefore, targeting to the AMPA receptor subunit GluR2 can be considered a practical strategy for stroke therapy.

Journal Title

Molecular Neurobiology

Volume

32

Issue/Number

2

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

145

Last Page

155

WOS Identifier

WOS:000232638600005

ISSN

0893-7648

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