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Citation
Lou, W.P., Mateos, A., Koch, M., Klussman, S., Yang, C., Lu, N., Kumar, S., Limpert, S., Göpferich, M., Zschaetzsch, M., Sliwinski, C., Kenzelmann, M., Seedorf, M., Maillo, C., Senis, E., Grimm, D., Puttagunta, R., Mendez, R., Liu, K., Hassan, B.A., Martin-Villalba, A. (2017). Regulation of Adult CNS Axonal Regeneration by the Post-transcriptional Regulator Cpeb1.  Front. Mol. Neurosci. 10(): 445.
FlyBase ID
FBrf0237956
Publication Type
Research paper
Abstract

Adult mammalian central nervous system (CNS) neurons are unable to regenerate following axonal injury, leading to permanent functional impairments. Yet, the reasons underlying this regeneration failure are not fully understood. Here, we studied the transcriptome and translatome shortly after spinal cord injury. Profiling of the total and ribosome-bound RNA in injured and naïve spinal cords identified a substantial post-transcriptional regulation of gene expression. In particular, transcripts associated with nervous system development were down-regulated in the total RNA fraction while remaining stably loaded onto ribosomes. Interestingly, motif association analysis of post-transcriptionally regulated transcripts identified the cytoplasmic polyadenylation element (CPE) as enriched in a subset of these transcripts that was more resistant to injury-induced reduction at the transcriptome level. Modulation of these transcripts by overexpression of the CPE binding protein, Cpeb1, in mouse and Drosophila CNS neurons promoted axonal regeneration following injury. Our study uncovered a global evolutionarily conserved post-transcriptional mechanism enhancing regeneration of injured CNS axons.

PubMed ID
PubMed Central ID
PMC5770975 (PMC) (EuropePMC)
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    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    Front. Mol. Neurosci.
    Title
    Frontiers in molecular neuroscience
    ISBN/ISSN
    1662-5099
    Data From Reference