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Activation of P-TEFb by cAMP-PKA signaling in autosomal dominant polycystic kidney disease

ABSTRACT: Activation of P-TEFb by cAMP-PKA signaling in autosomal dominant polycystic kidney disease

PROVIDER: PRJNA527993 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8751860_1.fastq.gz	Fastqsanger.gz
	SRR8751860_2.fastq.gz	Fastqsanger.gz
	SRR8751870.fastq.gz	Fastqsanger.gz
	SRR8751863.fastq.gz	Fastqsanger.gz
	SRR8751864.fastq.gz	Fastqsanger.gz

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Similar Datasets

Activation of P-TEFb by cAMP-PKA signaling in autosomal dominant polycystic kidney disease (RNA-Seq)

Project description:Activation of P-TEFb by cAMP-PKA signaling in autosomal dominant polycystic kidney disease (RNA-Seq)

| PRJNA528012 | ENA

Activation of P-TEFb by cAMP-PKA signaling in autosomal dominant polycystic kidney disease (ChIP-Seq)

Project description:Activation of P-TEFb by cAMP-PKA signaling in autosomal dominant polycystic kidney disease (ChIP-Seq)

| PRJNA528013 | ENA

Activation of P-TEFb by cAMP-PKA signaling in autosomal dominant polycystic kidney disease (RNA-Seq)

Project description:We showed that pharmacological inhibition of P-TEFb attenuated cyst development in ADPKD mouse models. Genome-wide analyses demonstrated that P-TEFb inhibition abrogated transcriptional pause release and suppressed a pathologic gene expression program during cystogenesis. This work revealed a mechanism by which aberrant activation of P-TEFb-mediated transcription elongation promotes cystogenesis in ADPKD.

2019-06-20 | GSE128522 | GEO

Activation of P-TEFb by cAMP-PKA signaling in autosomal dominant polycystic kidney disease (ChIP-Seq)

2019-06-20 | GSE128521 | GEO

cAMP-induced nuclear condensation of CRTC2 promotes transcription elongation and cystogenesis in autosomal dominant polycystic kidney disease

Project description:Formation of biomolecular condensates by phase separation has recently emerged as a new principle for regulating gene expression in response to extracellular signaling. However, the molecular mechanisms underlying the coupling of signal transduction and gene activation through condensate formation, and how dysregulation of these mechanisms contributes to disease progression, remain elusive. Here we report that CREB-regulated transcription coactivator 2 (CRTC2) translocates to the nucleus and forms phase-separated condensates upon activation of cAMP signaling. We show that intranuclear CRTC2 interacts with positive transcription elongation factor b (P-TEFb) and activates P-TEFb by disrupting the inhibitory 7SK snRNP complex. Aberrantly elevated cAMP signaling plays central roles in the development of autosomal dominant polycystic kidney disease (ADPKD). We find that CRTC2 localizes to the nucleus and forms condensates in cystic epithelial cells of both mouse and human ADPKD kidneys. Genetic depletion of CRTC2 suppresses cyst growth in an orthologous ADPKD mouse model. Using integrative transcriptomic and cistromic analyses, we identify CRTC2-regulated cystogenesis-associated genes, whose activation depends on CRTC2 condensate-facilitated P-TEFb recruitment and the release of paused RNA polymerase II. Together, our findings elucidate a mechanism by which CRTC2 nuclear condensation conveys cAMP signaling to transcription elongation activation and thereby promotes cystogenesis in ADPKD.

2021-12-28 | GSE173695 | GEO

cAMP-induced nuclear condensation of CRTC2 promotes transcription elongation and cystogenesis in autosomal dominant polycystic kidney disease (RNA-Seq)

Project description:Forming biomolecular condensates by phase separation has recently emerged as a new principle for regulating gene expression in response to extracellular signaling. However, the molecular mechanisms underlying the coupling of signaling transduction and gene activation through condensate formation and how dysregulation of these mechanisms contributes to disease progression remain elusive. Here we report that CREB-regulated transcription coactivator 2 (CRTC2) translocates to nucleus and forms phase-separated condensates upon activation of cAMP signaling. We show that CRTC2 interacts with positive transcription elongation factor b (P-TEFb), and cAMP-induced CRTC2 condensate formation activates P-TEFb by extracting P-TEFb from its inhibitory complex. Aberrantly elevated cAMP signaling plays central roles in the development of autosomal dominant polycystic kidney disease (ADPKD). We demonstrate that, in contrast to a dispersed cytosolic distribution in the normal tubular epithelia cells, CRTC2 localizes in nucleus and forms condensates in cystic epithelial cells of mouse and human ADPKD kidneys. We show that genetic depletion of CRTC2 markedly suppresses cyst growth in an orthologous ADPKD mouse model. Using integrative transcriptomic and cistromic analyses, we identify CRTC2-regulated cystogenic genes, whose activation depends on CRTC2 condensation-facilitated P-TEFb recruitment and RNA polymerase II pausing release. Together, our findings elucidate a mechanism by which CRTC2 nuclear condensation conveys cAMP signaling to transcription elongation activation and promotes cystogenesis in ADPKD.

2021-12-28 | GSE173693 | GEO

cAMP-induced nuclear condensation of CRTC2 promotes transcription elongation and cystogenesis in autosomal dominant polycystic kidney disease (ChIP-Seq)

2021-12-28 | GSE173694 | GEO

Activation of P-TEFb by cAMP-PKA signaling in autosomal dominant polycystic kidney disease.

Project description:Positive transcription elongation factor b (P-TEFb) functions as a central regulator of transcription elongation. Activation of P-TEFb occurs through its dissociation from the transcriptionally inactive P-TEFb/HEXIM1/7SK snRNP complex. However, the mechanisms of signal-regulated P-TEFb activation and its roles in human diseases remain largely unknown. Here, we demonstrate that cAMP-PKA signaling disrupts the inactive P-TEFb/HEXIM1/7SK snRNP complex by PKA-mediated phosphorylation of HEXIM1 at serine-158. The cAMP pathway plays central roles in the development of autosomal dominant polycystic kidney disease (ADPKD), and we show that P-TEFb is hyperactivated in mouse and human ADPKD kidneys. Genetic activation of P-TEFb promotes cyst formation in a zebrafish ADPKD model, while pharmacological inhibition of P-TEFb attenuates cyst development by suppressing the pathological gene expression program in ADPKD mice. Our study therefore elucidates a mechanism by which P-TEFb activation by cAMP-PKA signaling promotes cystogenesis in ADPKD.

| S-EPMC6551191 | biostudies-literature

Activation of P-TEFb by cAMP-PKA signaling in autosomal dominant polycystic kidney disease

Project description:This SuperSeries is composed of the SubSeries listed below.

2019-06-20 | GSE128524 | GEO

MiR-221/222 suppression induced by activation of the cAMP/PKA/CREB1 pathway is required for cAMP-induced bidirectional differentiation of glioma cells [miRNA]

Project description:Factors that increase cAMP levels can induce lineage-specific differentiation of glioma cells into astrocyte-like cells. However, the differentiation pattern and underlying mechanisms remain unclear. Here, we find that cAMP/PKA/CREB1-induced miR-221/222 suppression contributes to the neuron-like differentiation of gliomas. cAMP agonists selectively induced neuron- and astrocyte-like but not oligodendrocyte-like differentiation of C6 glioma cells. PKA inhibitors and CREB1 knockout blocked neuron-like differentiation of glioma cells. cAMP inhibited miR-221/222 in a PKA/CREB1 dependent manner. Importantly, both in vitro and in vivo assays demonstrated that transcriptional suppression of miR-221/222 is required for neuronal differentiation of glioma cells. Our findings suggest that increasing cAMP levels can induce bidirectional differentiation of glioma cells. Furthermore, the miR-221/222 cluster acts as an epigenetic brake during glioma differentiation. Factors that increase cAMP levels can induce lineage-specific differentiation of glioma cells into astrocyte-like cells. However, the differentiation pattern and underlying mechanisms remain unclear. Here, we find that cAMP/PKA/CREB1-induced miR-221/222 suppression contributes to the neuron-like differentiation of gliomas. cAMP agonists selectively induced neuron- and astrocyte-like but not oligodendrocyte-like differentiation of C6 glioma cells. PKA inhibitors and CREB1 knockout blocked neuron-like differentiation of glioma cells. cAMP inhibited miR-221/222 in a PKA/CREB1 dependent manner. Importantly, both in vitro and in vivo assays demonstrated that transcriptional suppression of miR-221/222 is required for neuronal differentiation of glioma cells. Our findings suggest that increasing cAMP levels can induce bidirectional differentiation of glioma cells. Furthermore, the miR-221/222 cluster acts as an epigenetic brake during glioma differentiation.

2021-08-24 | GSE182498 | GEO

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