GDNF triggers a novel ret-independent Src kinase family-coupled signaling via a GPI-linked GDNF receptor alpha1.
FEBS Lett
; 463(1-2): 63-6, 1999 Dec 10.
Article
em En
| MEDLINE
| ID: mdl-10601639
ABSTRACT
Glial cell line-derived neurotrophic factor (GDNF) has potentially great clinical importance in the treatment of Parkinson's disease and several other neurodegenerative diseases, however its intracellular signaling mechanisms are poorly understood. Here we show that upon GDNF binding glycosyl-phosphatidylinositol (GPI)-linked GDNF receptor alpha1 (GFRalpha1) activates cytoplasmic Src family tyrosine kinase(s) in Ret tyrosine kinase-deficient cultured mouse dorsal root ganglion neurons and in two Ret-negative cell lines. GFRalpha1-mediated Src-type kinase activation subsequently triggers phosphorylation of mitogen-activated protein kinase, cAMP response element binding protein and phospholipase Cgamma. We therefore conclude that GDNF can activate intracellular signaling pathways Ret-independently via GPI-linked GFRalpha1.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Transdução de Sinais
/
Proteínas Proto-Oncogênicas
/
Receptores Proteína Tirosina Quinases
/
Quinases da Família src
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Proteínas de Drosophila
/
Fatores de Crescimento Neural
/
Proteínas do Tecido Nervoso
Limite:
Animals
/
Humans
Idioma:
En
Revista:
FEBS Lett
Ano de publicação:
1999
Tipo de documento:
Article
País de afiliação:
Finlândia