Novel receptor protein tyrosine phosphatase (RPTPrho) and acidic fibroblast growth factor (FGF-1) transcripts delineate a rostrocaudal boundary in the granule cell layer of the murine cerebellar cortex.
J Comp Neurol
; 391(4): 444-55, 1998 Feb 22.
Article
en En
| MEDLINE
| ID: mdl-9486824
ABSTRACT
We have identified a novel receptor-like protein tyrosine phosphatase (RPTPrho) transcript whose expression in the cerebellar cortex is restricted to the granule cell layer of lobules 1-6. Acidic fibroblast growth factor (FGF-1) mRNA follows a similar cerebellar expression pattern. Together, the two markers define a sharp boundary in lobule 6, slightly caudal to the primary fissure. Anterior and posterior compartments became discernible only during postnatal weeks two and six, for RPTPrho and FGF-1, respectively. A rostrocaudal boundary in lobule 6 of the murine cerebellar cortex has also been identified morphologically by the effects of the meander tail mutation. The position of the RPTPrho and FGF-1 boundary on the rostrocaudal axis of the cerebellar cortex was close to, but not coincident with, the caudal extent of the disorganized anterior lobe of meander tail and the rostral extent of Otx-2 expression. The restricted pattern of FGF-1 and RPTPrho implies that these molecules may have specific signaling roles in the tyrosine phosphorylation/dephosphorylation pathway in the anterior compartment of the adult cerebellar cortex.
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Bases de datos:
MEDLINE
Asunto principal:
Rombencéfalo
/
ARN Mensajero
/
Mesencéfalo
/
Corteza Cerebelosa
/
Factor 1 de Crecimiento de Fibroblastos
/
Proteínas Tirosina Fosfatasas
/
Receptores de Superficie Celular
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
J Comp Neurol
Año:
1998
Tipo del documento:
Article
País de afiliación:
Estados Unidos