RGD Reference Report - Developmental expression of G alpha o and G alpha s isoforms in PC12 cells: relationship to neurite outgrowth. - Rat Genome Database

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Developmental expression of G alpha o and G alpha s isoforms in PC12 cells: relationship to neurite outgrowth.

Authors: Andreopoulos, S  Li, PP  Warsh, JJ 
Citation: Andreopoulos S, etal., Brain Res Dev Brain Res. 1995 Aug 28;88(1):30-6.
RGD ID: 2302011
Pubmed: PMID:7493405   (View Abstract at PubMed)

Recent evidence suggests neuronal differentiation is associated with developmentally regulated changes in the expression of certain G-protein subtypes but the relationship of such changes to neuronal differentiation and/or neurite outgrowth is poorly understood. In this study, the appearance of the G-protein alpha o and alpha s subunit isoforms was characterized in NGF-induced differentiating pheochromocytoma (PC)12 cells and correlated with neurite outgrowth, which was assessed with direct morphometric measures at 24-h intervals for a 5-day period and at 24, 48 and 72 h following NGF removal. Significant increases were observed in alpha o1 immunoreactive levels and the ratio of alpha o1/alpha o2 immunoreactivities during NGF exposure but not in the levels of either the long or short isoform of alpha s. The former changes also correlated significantly with neurite length during NGF treatment. Furthermore, no significant changes were observed in the levels of alpha o or alpha s isoforms following NGF removal. These findings suggest that alpha o isoforms are involved in neuritic extension in PC12 cells.

Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
neuron projection development  IEP 2302011 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Gnao1  (G protein subunit alpha o1)


Additional Information