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Collapsin response mediator protein 3 deacetylates histone H4 to mediate nuclear condensation and neuronal death

Par Conseil national de recherches du Canada

DOITrouver le DOI : https://doi.org/10.1038/srep01350
AuteurRechercher : 1; Rechercher : 1; Rechercher : 1; Rechercher : 1; Rechercher : 1
Affiliation
  1. Conseil national de recherches du Canada. Thérapeutique en santé humaine
FormatTexte, Article
SujetDpysl4 protein, mouse; glutamic acid; histone; histone deacetylase; nerve protein; transcription factor E2F1; tubulin; acetylation; cell death; cell line; cell nucleus; drug effect; female; gene expression regulation; gene silencing; genetics; metabolism; mouse; nerve cell; protein binding; protein transport; ultrastructure; Acetylation; Cell Death; Cell Line; Cell Nucleus; E2F1 Transcription Factor; Female; Gene Expression Regulation; Gene Knockdown Techniques; Glutamic Acid; Histone Deacetylases; Histones; Mice; Nerve Tissue Proteins; Neurons; Protein Binding; Protein Transport; Tubulin
Résumé
CRMP proteins play critical regulatory roles during semaphorin-mediated neurite outgrowth, neuronal differentiation and death. Albeit having a high degree of structure and sequence resemblance to that of liver dihydropyrimidinase, purified rodent brain CRMPs do not hydrolyze dihydropyrimidinase substrates. Here we found that mouse CRMP3 has robust histone H4 deacetylase activity. During excitotoxicity-induced mouse neuronal death, calpain-cleaved, N-terminally truncated CRMP3 undergoes nuclear translocation to cause nuclear condensation through deacetylation of histone H4. CRMP3-mediated deacetylation of H4 leads to de-repression of the E2F1 gene transcription and E2F1-dependent neuronal death. These studies revealed a novel mechanism of CRMP3 in neuronal death. Together with previous well established bodies of literature that inhibition of histone deacetylase activity provides neuroprotection, we envisage that inhibition of CRMP3 may represent a novel therapeutic approach towards excitotoxicity-induced neuronal death.
Date de publication
Dans
  • Scientific Reports 3, 1350 (2013).
Langueanglais
Publications évaluées par des pairsOui
Numéro NPARC21269893
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Identificateur de l’enregistrement8310cefe-ddef-4f25-97e6-cd6dab878a39
Enregistrement créé2013-12-13
Enregistrement modifié2020-04-22
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