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Post-transcriptional regulation of adult CNS axonal regeneration by Cpeb1

ABSTRACT: Profiling of injury response of the localized transcriptome from wild-type and Cpeb1 knockout neurites

ORGANISM(S): Mus musculus

PROVIDER: GSE92562 | GEO | 2017/10/01

SECONDARY ACCESSION(S): PRJNA358051

REPOSITORIES: GEO

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Post-transcriptional regulation of adult CNS axonal regeneration by Cpeb1

Project description:Post-transcriptional regulation of gene expression plays important roles in neuron physiology, and likely do so as well in injury response of axons We used microarray to profile expression changes in total and polysome-bound RNA upon spinal cord injury, to elucidate the role of post-transcriptional regulation towards axonal regeneration

2017-10-01 | GSE92657 | GEO

Regulation of Adult CNS Axonal Regeneration by the Post-transcriptional Regulator Cpeb1.

Project description: Not available

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CPEB1 or CPEB1 (T171A, S177A) interacting proteome analysis on C2C12 cells

Project description:CPEB1 regulates cellular function by post-transcriptionally controlling its targeted transcripts' translation. After bound to CPEs, CPEB1 recruits cytoplasmic poly (A) polymerase GLD2 to elongate the poly (A) tail for the maintenance of mRNA stability. The stability of mRNA is positively correlated with translational output. It is unexamined whether CPEB1 interacts with translation machinery to regulation translation. Previous reports demonstrate that phosphorylation is required for its regulation on translation. However, it is not well understood whether phosphorylation is essential for CPEB1 interaction with translation machinery or not. Here, we performed mass spectrometry on C2 cells transfected with CPEB1-mVenus or CPEB1 (T171A, S177A)-mVenus after IgG or mVenus antibody immunoprecipitation. After analysis, we identify CPEB1 interacting proteins and the phosphorylation dependent interacting proteins such as ribosomal proteins. Thus, our data suggest that CPEB1 regulate translation by interacting with translation machinery in a phosphorylation dependent manner.

2021-11-04 | PXD020822 | Pride

Myelin-derived ephrinB3 restricts axonal regeneration and recovery after adult CNS injury.

Project description: Not available

| S-EPMC3323955 | biostudies-literature

CPEB1 and CPEB4-associated mRNAs in mice striatum

Project description:To identify CPEB1 and CPEB4 regulated RNA we performed CPEB1 and CPEB4 RNA immunoprecipitation (RIP) followed by microarray hybridization analysis with striatal (St) RNA from wild-type (WT) and R6/1 mice (HD mice).

2020-03-06 | GSE113833 | GEO

Genome-wide mRNA targets of CPEB1 in muscle stem cells

Project description:We performed CPEB1 RIP-seq on freshly isolated muscle stem cells. We found that CPEB1 associated genes are enriched in translational regulation pathways.

2021-11-02 | GSE148912 | GEO

Expression data from Neuro2a cells treated with siRNA targeting to Cpeb1 mRNA.

Project description:Cytoplasmic polyadenylation element binding protein 1 (CPEB1) regulates polyadenylation and subsequent translation of CPE-containing mRNAs, which contributes to various physiological and pathological phenomena. To clarify changes in gene expression profiles caused by dysregulation of CPEB1 expression, we performed microarray analyses and revealed that reduced CPEB1 expression altered the expression levels of numerous genes. These findings indicate that accurate post-transcriptional regulation of CPEB1 expression contributes to the maintenance of global gene expression partially through modulating lncRNA expression.

2021-03-31 | GSE147604 | GEO

PI 3-kinase delta enhances axonal PIP3 to support axon regeneration in the adult CNS.

Project description: Not available

| S-EPMC7411663 | biostudies-literature

CNS Regeneration

Project description:Summary: Spinal cord injury (SCI) is a damage to the spinal cord induced by trauma or desease resulting in a loss of mobility or feeling. SCI is characterized by a primary mechanical injury followed by a secondary injury in which several molecular events are altered in the spinal cord often resulting in loss of neuronal function. Hypothesis: Spinal cord injury (SCI) induces a cascade of molecular events including the activation of genes associated with transcription factors, inflammation, oxidative stress, ionic imbalance, apoptosis and neuroregeneration which suggests the existance of endogenous reparative attempts. However, not all mechanisms following SCI are well known. Specific Aim: The goal of this project is to analyze the molecular events following spinal cord injury 1 cm above, below, and at the site of injury (T9), aiming at finding potential new targets to improve recovery and therapy. Keywords: other

2003-07-16 | GSE464 | GEO

CPEB1-dependent disruption of the mRNA translation program in oocytes during maternal aging

Project description:The molecular causes of deteriorating oocyte quality during aging are poorly defined. Since oocyte developmental competence relies on post-transcriptional regulations, we tested whether defective mRNA translation contributes to this decline in quality. Disruption in ribosome loading on maternal transcripts is present in old oocytes. Using a candidate approach, we detect altered translation of 3’-UTR-reporters and altered poly(A) length of the endogenous mRNAs. mRNA polyadenylation depends on the cytoplasmic polyadenylation binding protein 1 (CPEB1). Cpeb1 mRNA translation and protein levels are decreased in old oocytes. This decrease causes de-repression of Ccnb1 translation in quiescent oocytes, premature CDK1 activation, and accelerated reentry into meiosis. De-repression of Ccnb1 is corrected by Cpeb1 mRNA injection in old oocytes. Oocyte-specific Cpeb1 haploinsufficiency in young oocytes recapitulates all the translation phenotypes of old oocytes. These findings demonstrate that a dysfunction in the oocyte translation program is associated with the decline in oocyte quality during aging.

2023-01-11 | GSE222638 | GEO

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