Chemical hypoxia facilitates alternative splicing of EAAT2 in presymptomatic APP23 transgenic mice.

Abstract:

:Hypoxia is one of the major common components of vascular risk factors for pathogenesis of Alzheimer's disease. This study investigated the possible relationship between hypoxia and alternative splicing of the excitatory amino acid transporter 2 (EAAT2) in a transgenic model for Alzheimer's disease. We used an APP23 mouse model prior to amyloid deposition and subjected it to chemical hypoxia treatment as induced by 3-nitropropionic acid. One hour after administration of 3-nitropropionic acid changes in the expression of the 5'-splice forms mEAAT2/5UT3, mEAAT2/5UT4, and mEAAT2/5UT5 were found in the frontal cortex, hippocampus and cerebellum of the APP23 model. In untreated APP23 animals the expression of EAAT2 splice variants was unchanged. Our results demonstrate that hypoxia facilitates alternative splicing of EAAT2 in the APP23 model. This may be a molecular mechanism linking vascular factors to early pathophysiology of Alzheimer's disease.

journal_name

Neurochem Res

journal_title

Neurochemical research

authors

Münch C,Zhu BG,Mink A,Seefried U,Riepe MW,Ludolph AC,Meyer T

doi

10.1007/s11064-007-9540-5

subject

Has Abstract

pub_date

2008-06-01 00:00:00

pages

1005-10

issue

6

eissn

0364-3190

issn

1573-6903

journal_volume

33

pub_type

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