Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Cdk5 regulates activity-dependent gene expression and dendrite development [cultured cortical neurons]

ABSTRACT: To investigate the molecular mechanism underlying activity-dependent dendrite development regulated by Cdk5, an unbiased microarray analysis was performed to identify activity-dependent genes differentially regulated in cortical neurons from E18 Cdk5-knockout embryos.

ORGANISM(S): Mus musculus

PROVIDER: GSE68320 | GEO | 2015/12/11

SECONDARY ACCESSION(S): PRJNA282422

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Cdk5 drives formation of heterogeneous pancreatic neuroendocrine tumors.

Project description:Pancreatic neuroendocrine tumors (PanNETs) are a heterogeneous population of neoplasms that arise from hormone-secreting islet cells of the pancreas and have increased markedly in incidence over the past four decades. Non-functional PanNETs, which occur more frequently than hormone-secreting tumors, are often not diagnosed until later stages of tumor development and have poorer prognoses. Development of successful therapeutics for PanNETs has been slow, partially due to a lack of diverse animal models for pre-clinical testing. Here, we report development of an inducible, conditional mouse model of PanNETs by using a bitransgenic system for regulated expression of the aberrant activator of Cdk5, p25, specifically in b-islet cells. This model produces a heterogeneous population of PanNETs that includes a subgroup of well-differentiated, non-functional tumors. The utility of this model is enhanced by ability to form tumor-derived allografts. Production of these tumors demonstrates the causative potential of aberrantly active Cdk5 for generation of PanNETs. Further, we show that human PanNETs express Cdk5 pathway components, are dependent on Cdk5 for growth, and share genetic and transcriptional overlap with the INS-p25OE model. This new model of PanNETs will facilitate molecular delineation of Cdk5-dependent PanNETs and the development of new targeted therapeutics.

2021-06-10 | GSE176448 | GEO

Mus musculus

Project description:Cdk5 regulates activity-dependent gene expression and dendrite development [cultured cortical neurons]

| PRJNA282422 | ENA

CDK5 inhibition abrogates TNBC stem-cell property and enhances anti-PD-1 therapy

Project description:Triple-negative breast cancer (TNBC) is a highly aggressive subtype of breast cancer that shows high infiltration of cancer stem cells (CSCs), which correlates with poor clinical outcome. Here, we have demonstrated that an aberrant activation of CDK5/pho-PPARg axis associated with TNBC progression closely. CDK5 blockade sufficiently abrogates stemness transformation of TNBC cells, resulting in a significant inhibition of tumor metastatic progression. Moreover, CDK5 inhibitor Rosc attenuates CD44v+ BCSCs, hereby reversing immunosuppressive microenvironment and enhancing anti-PD-1 effects on TNBC. Mechanistically, CDK5/pho-PPARgaxis modulates the ESRP1 degradation via E3 ligase-like activity, leading to CD44 variant (CD44v) expression. Our finding indicates that CDK5 blockade could be a potent strategy to target CSCs in TNBC, and to increase the response to PD-1 blockade in TNBC therapy.

2022-06-18 | GSE132902 | GEO

CDK5-dependent phosphorylation and nuclear translocation of TRIM59 promotes macroH2A1 ubiquitination and tumorigenicity

Project description:Despite the development of adjuvant therapies, glioblastoma (GBM) patients remain incurable and justify the urgent need of new therapies. CDK5 functions a critical role in GBM and is a potential target for GBM. However, the mechanism by which CDK5 promotes GBM tumorigenicity remains largely unknown. Here we identify TRIM59 as a substrate of CDK5. EGFR-activated CDK5 directly binds to and phosphorylates TRIM59, a ubiquitin ligase at serine 308, which recruits PIN1 for cis-trans isomerization of TRIM59, leading to TRIM59 binding to importin a5 and nuclear translocation. Nuclear TRIM59 induces ubiquitination and degradation of the tumor suppressive histone variant macroH2A1, leading to enhanced STAT3 signaling activation and tumorigenicity. These findings are confirmed by inhibition of CDK5-activated TRIM59 activity that results in suppression of intracranial tumor growth. Correlative expressions of the components of this pathway are clinically prognostic. Our findings suggest targeting CDK5/TRIM59 signaling axis as a putative strategy for treating GBM.

2019-08-11 | GSE130949 | GEO

CDK5 activates Hippo signaling to confer resistance to radiotherapy via upregulating TAZ in lung cancer

Project description:Tumor resistance to radiotherapy is a therapeutic challenge in the treatment of patients with lung cancer. Cyclin-dependent kinase 5 (CDK5) has been proposed to participate in cell proliferation, migration and invasion; drug resistance; and immune evasion. However, the functions and regulatory mechanisms of CDK5 in lung cancer radioresistance have not been investigated.SiRNAs and ShRNAs were used to knock down CDK5 in A549 and H1299 cells. The effects of CDK5 depletion on the tumorigenic behaviors of non-small cell lung cancer (NSCLC) cells were evaluated in vitro and in vivo. Gene expression was examined by RNA-seq and quantitative real-time PCR.

2021-04-30 | GSE148532 | GEO

Cdk5-mediated phosphorylation ensures robust neuronal differentiation

Project description:Tet3 converts 5-methylcyotsine to 5-hydroxymethylcytosine (5hmC), although it remains unclear how its functions can be regulated. We showed that Tet3 is phosphorylated by cyclin-dependent kinase 5 at a highly conserved serine residue within its catalytic domain, which leads to an increase in its dioxygenase activity in vitro. Interestingly, when stably expressed in Tet triple-knockout mouse embryonic stem cells (mESCs), wild-type Tet3 elicited higher 5hmC enrichment and expression of genes involved in neurogenesis whereas phosphor-mutant Tet3 caused elevated 5hmC and expression of metabolic pathways genes. Expression of wild-type, but not phosphor-mutant Tet3 in Tet3-knockout mESCs, causes optimal expression of BRN2, Hes1 and Hey2 transcription factors which lead to robust terminal differentiation measured by MAP2 expression. Taken together, our results suggest that cdk5-mediated phosphorylation of Tet3 ensures robust activation of neuronal transcriptional programs during differentiation.

2019-11-29 | GSE130384 | GEO

Transcription Factor Acj6 Controls Dendrite Targeting via Combinatorial Cell-Surface Codes

Project description:Transcription factors specify the fate and connectivity of developing neurons. We investigate how a lineage-specific transcription factor, Acj6, controls the precise dendrite targeting of Drosophila olfactory projection neurons (PNs) by regulating the expression of cell-surface proteins. Quantitative cell-surface proteomic profiling of wild-type and acj6 mutant PNs in intact developing brains and a proteome-informed genetic screen identified PN surface proteins that execute Acj6-regulated wiring decisions. These include canonical cell adhesion molecules and proteins previously not associated with wiring, such as Piezo, whose mechanosensitive ion channel activity is dispensable for its function in PN dendrite targeting. Comprehensive genetic analyses revealed that Acj6 employs unique sets of cell-surface proteins in different PN types for dendrite targeting. Combinatorial expression of Acj6 wiring executors rescued acj6 mutant phenotypes with higher efficacy and breadth than expression of individual executors. Thus, Acj6 controls wiring specificity of different neuron types by specifying distinct combinatorial expression of cell-surface executors.

2022-04-21 | GSE200841 | GEO

Cyclin dependent kinase 5 (CDK5) regulates the circadian clock

Project description:We show that the cyclin-dependent kinase 5 (CDK5) regulates the mammalian circadian clock via phosphorylation of PER2. CDK5 phosphorylated PER2 at serine residue 394 (S394) as shown by an in vitro kinase assay.

2019-12-04 | PXD012068 | Pride

Different gene expression between CDK5 knocking down and control colorectal cancer cell line HCT116

Project description:We sought to find out the molecular mechanism of CDK5 displayed in colorectal cancer. Microarray experiments were carried out to identify different gene expression between CDK5-knockdown HCT116 cell lines and Scramble HCT116 cell lines.

2016-05-05 | GSE81085 | GEO

Chromatin Remodeling Inactivates Activity Genes and Regulates Neural Coding

Project description:Activity-dependent transcription influences neuronal connectivity, but the roles and mechanisms of inactivation of activity-dependent genes have remained poorly understood. Genome-wide analyses in the mouse cerebellum revealed that the nucleosome remodeling and deacetylase (NuRD) complex deposits the histone variant H2A.z at promoters of activity-dependent genes, thereby triggering their inactivation. Purification of translating mRNAs from synchronously developing granule neurons (Sync-TRAP) showed that conditional knockout of the core NuRD subunit Chd4 impairs inactivation of activity-dependent genes when neurons undergo dendrite pruning. Chd4 knockout or expression of NuRD-regulated activity genes impairs dendrite pruning. Imaging of behaving mice revealed hyperresponsivity of granule neurons to sensorimotor stimuli upon Chd4 knockout. Our findings define an epigenetic mechanism that inactivates activity-dependent transcription and regulates dendrite patterning and sensorimotor encoding in the brain.

2016-07-18 | GSE83253 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data