PAT1 inversely regulates the surface Amyloid Precursor Protein level in mouse primary neurons.
BMC Neurosci
; 16: 10, 2015 Mar 07.
Article
em En
| MEDLINE
| ID: mdl-25880931
ABSTRACT
BACKGROUND:
The amyloid precursor protein (APP) is a key molecule in Alzheimer disease. Its localization at the cell surface can trigger downstream signaling and APP cleavages. APP trafficking to the cell surface in neurons is not clearly understood and may be related to the interactions with its partners. In this respect, by having homologies with kinesin light chain domains and because of its capacity to bind APP, PAT1 represents a good candidate.RESULTS:
We observed that PAT1 binds poorly APP at the cell surface of primary cortical neurons contrary to cytoplasmic APP. Using down and up-regulation of PAT1, we observed respectively an increase and decrease of APP at the cell surface. The increase of APP at the cell surface induced by low levels of PAT1 did not trigger cell death signaling.CONCLUSIONS:
These data suggest that PAT1 slows down APP trafficking to the cell surface in primary cortical neurons. Our results contribute to the elucidation of mechanisms involved in APP trafficking in Alzheimer disease.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Membrana Celular
/
Córtex Cerebral
/
Precursor de Proteína beta-Amiloide
/
Sistemas de Transporte de Aminoácidos
/
Simportadores
/
Neurônios
Limite:
Animals
/
Humans
Idioma:
En
Revista:
BMC Neurosci
Assunto da revista:
NEUROLOGIA
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
França