RGD Reference Report - Regulation of neuron survival and death by p130 and associated chromatin modifiers. - Rat Genome Database

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Regulation of neuron survival and death by p130 and associated chromatin modifiers.

Authors: Liu, DX  Nath, N  Chellappan, SP  Greene, LA 
Citation: Liu DX, etal., Genes Dev. 2005 Mar 15;19(6):719-32.
RGD ID: 2306221
Pubmed: PMID:15769944   (View Abstract at PubMed)
PMCID: PMC1065725   (View Article at PubMed Central)
DOI: DOI:10.1101/gad.1296405   (Journal Full-text)

E2F-mediated gene repression plays a key role in regulation of neuron survival and death. However, the key molecules involved in such regulation and the mechanisms by which they respond to apoptotic stimuli are largely unknown. Here we show that p130 is the predominant Rb family member associated with E2F in neurons, that its major partner for repression of pro-apoptotic genes is E2F4, and that the p130-E2F4 complex recruits the chromatin modifiers HDAC1 and Suv39H1 to promote gene silencing and neuron survival. Apoptotic stimuli induce neuron death by sequentially causing p130 hyperphosphorylation, dissociation of p130-E2F4-Suv39H1-HDAC complexes, altered modification of H3 histone and gene derepression. Experimental suppression of such events blocks neuron death while interference with the synthesis of E2F4 or p130, or with the interaction of E2F4-p130 with chromatin modifiers, induces neuron death. Thus, neuron survival and death are dependent on the integrity of E2F4-p130-HDAC/Suv39H1 complexes.



Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
Hdac1Ratnegative regulation of neuron apoptotic process  IMP  RGD 

Objects Annotated

Genes (Rattus norvegicus)
Hdac1  (histone deacetylase 1)


Additional Information