Amyloid-ß peptide alteration of tau exon-10 splicing via the GSK3ß-SC35 pathway.
Neurobiol Dis
; 40(2): 378-85, 2010 Nov.
Article
em En
| MEDLINE
| ID: mdl-20615469
ABSTRACT
Amyloid-beta peptide (Aß) and Tau protein are the lead constituents in the pathogenesis of Alzheimer's disease (AD). However, their inter-relationship in the disease process remains to be established. Tauopathy refers to a characteristic neurodegenerative process in AD. In tauopathy, Tau accumulates as a consequence of altered pre-mRNA splicing of tau exon 10, resulting in 3R (without exon 10)/4R (with exon 10) imbalance. We studied Aß effects on tau exon 10 pre-mRNA splicing and relevant signaling events. This is the first demonstration of Aß alteration of tau exon 10 splicing with an increase in 3R/4R ratio caused by reduced 4R expression. This Aß ï action is causally related to its activation of GSK-3ß which in turn phosphorylates SC35, an enhancer in tau exon 10 splicing. The establishment of the Aß-GSK-3ß-SC35 cascade broadens insight into development of novel strategies to modulate Aß action on tau exon 10 splicing for possible prevention of tauopathy.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Ribonucleoproteínas
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Proteínas Nucleares
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Splicing de RNA
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Peptídeos beta-Amiloides
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Proteínas tau
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Tauopatias
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Quinase 3 da Glicogênio Sintase
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Neurônios
Limite:
Humans
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article