Amyloid Precursor Protein Binding Protein-1 Is Up-regulated in Brains of Tg2576 Mice
The Korean Journal of Physiology and Pharmacology
;
: 229-233, 2010.
Article
Dans Anglais
| WPRIM
| ID: wpr-727795
ABSTRACT
Amyloid precursor protein binding protein-1 (APP-BP1) binds to the carboxyl terminus of amyloid precursor protein and serves as a bipartite activation enzyme for the ubiquitin-like protein, NEDD8. Previously, it has been reported that APP-BP1 rescues the cell cycle S-M checkpoint defect in Ts41 hamster cells, that this rescue is dependent on the interaction of APP-BP1 with hUba3. The exogenous expression of APP-BP1 in neurons has been reported to cause DNA synthesis and apoptosis via a signaling pathway that is dependent on APP-BP1 binding to APP. These results suggest that APP-BP1 overexpression contributes to neurodegeneration. In the present study, we explored whether APP-BP1 expression was altered in the brains of Tg2576 mice, which is an animal model of Alzheimer's disease. APP-BP1 was found to be up-regulated in the hippocampus and cortex of 12 month-old Tg2576 mice compared to age-matched wild-type mice. In addition, APP-BP1 knockdown by siRNA treatment reduced cullin-1 neddylation in fetal neural stem cells, suggesting that APP-BP1 plays a role in cell cycle progression in the cells. Collectively, these results suggest that increased expression of APP-BP1, which has a role in cell cycle progression in neuronal cells, contributes to the pathogenesis of Alzheimer's disease.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Liaison aux protéines
/
Encéphale
/
ADN
/
Cycle cellulaire
/
Apoptose
/
Modèles animaux
/
Petit ARN interférent
/
Cellules souches neurales
/
Maladie d'Alzheimer
/
Hippocampe
Limites du sujet:
Animaux
langue:
Anglais
Texte intégral:
The Korean Journal of Physiology and Pharmacology
Année:
2010
Type:
Article
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