RGD Reference Report - c-Jun N-terminal kinases mediate Fas-induced neurite regeneration in PC12 cells. - Rat Genome Database

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c-Jun N-terminal kinases mediate Fas-induced neurite regeneration in PC12 cells.

Authors: Waetzig, V  Loose, K  Haeusgen, W  Herdegen, T 
Citation: Waetzig V, etal., Biochem Pharmacol. 2008 Dec 1;76(11):1476-84. Epub 2008 Jul 19.
RGD ID: 2315724
Pubmed: PMID:18692025   (View Abstract at PubMed)
DOI: DOI:10.1016/j.bcp.2008.07.014   (Journal Full-text)

In response to injury, peripheral neuronal cells initiate complex signalling cascades to promote survival and regeneration. In the present study, we used a model of experimental injury in the rat pheochromocytoma cell line PC12 to investigate receptor signals that lead to neurite outgrowth. Nerve growth factor (NGF) dose-dependently induced sprouting and the expression of the NGF receptors Trk tyrosine kinase receptor (TrkA) and p75 neurotrophin receptor (p75(NTR)) as well as Fas and Fas ligand. Neurite regeneration was decreased by chemical inhibition of TrkA, but not p75(NTR), and by the Fas inhibitor protein Fas-Fc. The mitogen-activated protein kinases (MAPKs) extracellular signal-regulated kinase 1/2 (ERK1/2) and c-Jun N-terminal kinases (JNKs) were activated in response to NGF and both significantly contributed to neurite re-growth. Interestingly, otherwise apoptotic Fas ligation supported neuronal recovery exclusively via JNKs and promoted sprouting parallel to NGF. These findings suggest a novel signal integration from the NGF and Fas pathways in the JNK axis of MAPK signalling, where JNKs function as "physiological" mediators of normally apoptotic signals.

Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
dendrite regeneration  IMP 2315724 RGD 
response to growth factor  IEP 2315724; 2315724 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Fas  (Fas cell surface death receptor)
Faslg  (Fas ligand)


Additional Information