Neuropathogenic forms of huntingtin and androgen receptor inhibit fast axonal transport.
Neuron
; 40(1): 41-52, 2003 Sep 25.
Article
em En
| MEDLINE
| ID: mdl-14527432
ABSTRACT
Huntington's and Kennedy's disease are autosomal dominant neurodegenerative diseases caused by pathogenic expansion of polyglutamine tracts. Expansion of glutamine repeats must in some way confer a gain of pathological function that disrupts an essential cellular process and leads to loss of affected neurons. Association of huntingtin with vesicular structures raised the possibility that axonal transport might be altered. Here we show that polypeptides containing expanded polyglutamine tracts, but not normal N-terminal huntingtin or androgen receptor, directly inhibit both fast axonal transport in isolated axoplasm and elongation of neuritic processes in intact cells. Effects were greater with truncated polypeptides and occurred without detectable morphological aggregates.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Transporte Axonal
/
Proteínas Nucleares
/
Receptores Androgênicos
/
Proteínas do Tecido Nervoso
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Neuron
Assunto da revista:
NEUROLOGIA
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Estados Unidos