Increased expression of BIN1 mediates Alzheimer genetic risk by modulating tau pathology.
Mol Psychiatry
; 18(11): 1225-34, 2013 Nov.
Article
en En
| MEDLINE
| ID: mdl-23399914
Genome-wide association studies (GWAS) have identified a region upstream the BIN1 gene as the most important genetic susceptibility locus in Alzheimer's disease (AD) after APOE. We report that BIN1 transcript levels were increased in AD brains and identified a novel 3 bp insertion allele â¼28 kb upstream of BIN1, which increased (i) transcriptional activity in vitro, (ii) BIN1 expression levels in human brain and (iii) AD risk in three independent case-control cohorts (Meta-analysed Odds ratio of 1.20 (1.14-1.26) (P=3.8 × 10(-11))). Interestingly, decreased expression of the Drosophila BIN1 ortholog Amph suppressed Tau-mediated neurotoxicity in three different assays. Accordingly, Tau and BIN1 colocalized and interacted in human neuroblastoma cells and in mouse brain. Finally, the 3 bp insertion was associated with Tau but not Amyloid loads in AD brains. We propose that BIN1 mediates AD risk by modulating Tau pathology.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Proteínas Nucleares
/
Proteínas tau
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Predisposición Genética a la Enfermedad
/
Proteínas Supresoras de Tumor
/
Proteínas Adaptadoras Transductoras de Señales
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Enfermedad de Alzheimer
Tipo de estudio:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
/
Systematic_reviews
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Mol Psychiatry
Asunto de la revista:
BIOLOGIA MOLECULAR
/
PSIQUIATRIA
Año:
2013
Tipo del documento:
Article
País de afiliación:
Francia
Pais de publicación:
Reino Unido