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Interferon-regulated genetic programs and JAK/STAT pathway activate the intronic promoter of the short ACE2 isoform in renal proximal tubules [ChIP-seq]

ABSTRACT: Interferon-regulated genetic programs and JAK/STAT pathway activate the intronic promoter of the short ACE2 isoform in renal proximal tubules [ChIP-seq]

PROVIDER: PRJNA679898 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13093716.fastq.gz	Fastqsanger.gz
	SRR13093717.fastq.gz	Fastqsanger.gz
	SRR13093718.fastq.gz	Fastqsanger.gz
	SRR13093719.fastq.gz	Fastqsanger.gz
	SRR13093720.fastq.gz	Fastqsanger.gz

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Interferon-regulated genetic programs and JAK/STAT pathway activate the intronic promoter of the short ACE2 isoform in renal proximal tubules [ChIP-seq]

Project description:Angiotensin-Converting Enzyme 2 (ACE2) binds SARS-CoV-2 spike protein and facilitates viral entry into the cell. ACE2 is expressed in the kidney and renal injury strongly impacts COVID-19 prognosis. In addition, a short, interferon-inducible isoform of ACE2, dACE2 was recently identified. Change in ACE2 expression has already been linked to several human nephropathies. However, these changes were not analyzed in context of dACE2 and regulation of ACE2 expression in the kidney remains unclear. Human primary Renal Proximal Tubule cells were used for all experiments. ChIP-seq analysis of histone modifications (H3K27ac, H3K4me3, K3K4me1), RNA polymerase loading and DNAse hypersensitive sites (DHS) were used to identify gene regulatory elements in the ACE2 locus. qRT-PCR was used to assess mRNA expression of ACE2, dACE2, TMPRSS2 and STAT1. RNA-seq was used to identify changes in global gene expression after cytokine treatment. Putative regulatory elements controlling dACE2 expression were identified using ChIP-seq profiles and RNA-seq mapping. qRT-PCR differentiating between ACE2 and dACE2 revealed that only dACE2 is interferon inducible. dACE2 mRNA was upregulated 300- and 600-fold by IFNα and IFNβ, respectively, while full length ACE2 was unchanged. Interferon stimulation also resulted in elevated STAT1 expression. JAK inhibitor ruxolitinib ablated both STAT1 and dACE2 expression after interferon treatment. RNA-seq analysis revealed approximately 1200 genes induced by IFNβ, largely innate immune response-related. We showed that human primary proximal tubules express ACE2 and its interferon-inducible short isoform, dACE2, from an intronic promoter. We also deliver new datasets identifying cytokine response genes in proximal tubule cells.

2021-02-03 | GSE161915 | GEO

Interferon-regulated genetic programs and JAK/STAT pathway activate the intronic promoter of the short ACE2 isoform in renal proximal tubules [RNA-seq]

2021-02-03 | GSE161916 | GEO

Interferon-regulated genetic programs and JAK/STAT pathway activate the intronic promoter of the short ACE2 isoform in renal proximal tubules [RNA-seq]

Project description:Interferon-regulated genetic programs and JAK/STAT pathway activate the intronic promoter of the short ACE2 isoform in renal proximal tubules [RNA-seq]

| PRJNA679897 | ENA

JAK/STAT blockade in cHL

Project description:JAK/STAT blockade in cHL

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JAK inhibitors dampen activation of interferon-activated transcriptomes and the SARS-CoV-2 receptor ACE2 in human renal proximal tubules

Project description:SARS-CoV-2 infections initiate cytokine storms and activate genetic programs leading to progressive hyperinflammation in multiple organs of patients with COVID-19. While it is known that COVID-19 impacts kidney function, leading to increased mortality, cytokine response of renal epithelium has not been studied in detail. Here, we report on the genetic programs activated in human primary proximal tubule (HPPT) cells by interferons and their suppression by ruxolitinib, a Janus kinase (JAK) inhibitor used in COVID-19 treatment. Integration of our data with those from patients with acute kidney injury and COVID-19, as well as other tissues, permitted the identification of kidney-specific interferon responses. Additionally, we investigated the regulation of the recently discovered isoform (dACE2) of the angiotensin-converting enzyme 2 (ACE2), the SARS-CoV-2 receptor. Using ChIP-seq, we identified candidate interferon-activated enhancers controlling the ACE2 locus, including the intronic dACE2 promoter. Taken together, our study provides an in-depth understanding of genetic programs activated in kidney cells.

2021-02-03 | GSE161917 | GEO

JAK inhibitors dampen activation of interferon-stimulated transcription of ACE2 isoforms in human airway epithelial cells

Project description:SARS-CoV-2 infection of human airway epithelium activates genetic programs leading to progressive hyperinflammation in COVID-19 patients. Here, we report on transcriptomes activated in primary airway cells by interferons and their suppression by Janus kinase (JAK) inhibitors. Deciphering the regulation of the angiotensin-converting enzyme 2 (ACE2), the receptor for SARS-CoV-2, is paramount for understanding the cell tropism of SARS-CoV-2 infection. ChIP-seq for activating histone marks and Pol II loading identified candidate enhancer elements controlling the ACE2 locus, including the intronic dACE2 promoter. Employing RNA-seq, we demonstrate that interferons activate expression of dACE2 and, to a lesser extent, the genuine ACE2 gene. Interferon-induced gene expression was mitigated by the JAK inhibitors baricitinib and ruxolitinib, used therapeutically in COVID-19 patients. Through integrating RNA-seq and ChIP-seq data we provide an in-depth understanding of genetic programs activated by interferons, and our study highlights JAK inhibitors as suitable tools to suppress these in bronchial cells.

2021-04-23 | GSE161665 | GEO

JAK/STAT blockade in cHL

Project description:Here we investigated the effects of JAK/STAT pharmacological inhibition on cHL cell models using ruxolitinib, a JAK 1/2 inhibitor. We use five classical Hodgkin lymphoma cell lines: L428, L1236, L540, KMH2, L591

2021-10-15 | GSE185818 | GEO

JAK inhibitors dampen activation of interferon-stimulated transcription of ACE2 isoforms in human airway epithelial cells (RNA-seq)

Project description:SARS-CoV-2 infection of human airway epithelium activates genetic programs leading to progressive hyperinflammation in COVID-19 patients. Here, we report on transcriptomes activated in primary airway cells by interferons and their suppression by Janus kinase (JAK) inhibitors. Deciphering the regulation of the angiotensin-converting enzyme 2 (ACE2), the receptor for SARS-CoV-2, is paramount for understanding the cell tropism of SARS-CoV-2 infection. ChIP-seq for activating histone marks and Pol II loading identified candidate enhancer elements controlling the ACE2 locus, including the intronic dACE2 promoter. Employing RNA-seq, we demonstrate that interferons activate expression of dACE and, to a lesser extent, the genuine ACE2 gene. Interferon-induced gene expression was mitigated by the JAK inhibitors baricitinib and ruxolitinib used therapeutically in COVID-19 patients. Through integrating RNA-seq and ChIP-seq data we provide an in-depth understanding of genetic programs activated by interferons, and our study highlights JAK inhibitors as suitable tools to suppress these in bronchial cells.

2021-04-23 | GSE161664 | GEO

JAK inhibitors dampen activation of interferon-stimulated transcription of ACE2 isoforms in human airway epithelial cells (ChIP-seq)

Project description:SARS-CoV-2 infection of human airway epithelium activates genetic programs leading to progressive hyperinflammation in COVID-19 patients. Here, we report on transcriptomes activated in primary airway cells by interferons and their suppression by Janus kinase (JAK) inhibitors. Deciphering the regulation of the angiotensin-converting enzyme 2 (ACE2), the receptor for SARS-CoV-2, is paramount for understanding the cell tropism of SARS-CoV-2 infection. ChIP-seq for activating histone marks and Pol II loading identified candidate enhancer elements controlling the ACE2 locus, including the intronic dACE2 promoter. Employing RNA-seq, we demonstrate that interferons activate expression of dACE and, to a lesser extent, the genuine ACE2 gene. Interferon-induced gene expression was mitigated by the JAK inhibitors baricitinib and ruxolitinib used therapeutically in COVID-19 patients. Through integrating RNA-seq and ChIP-seq data we provide an in-depth understanding of genetic programs activated by interferons, and our study highlights JAK inhibitors as suitable tools to suppress these in bronchial cells.

2021-04-23 | GSE161663 | GEO

JAK-STAT pathways maintain homeostasis in immune cells (ATAC-Seq)

Project description:Immune cells need to sustain a state of constant alertness over a lifetime. Yet, little is known about the regulatory processes that control the fluent and fragile balance that is called homeostasis. Here we demonstrate that JAK-STAT signaling, beyond its role in immune responses, is a major regulator of immune cell homeostasis. We investigated JAK-STAT-mediated transcription and chromatin accessibility across 12 mouse models, including knockouts of all STAT transcription factors and of the TYK2 kinase. Baseline JAK-STAT signaling was detected in CD8+ T cells and macrophages of unperturbed mice – but abrogated in the knockouts and in unstimulated immune cells deprived of their normal tissue context. We observed diverse transcription-regulatory programs, including gene regulation by STAT2 and IRF9 independent of STAT1. In summary, our large-scale dataset and integrative analysis of JAK-STAT mutant and wildtype mice uncovered a crucial role of JAK-STAT signaling in unstimulated immune cells, where it contributes to a poised epigenetic and transcription-regulatory state and helps prepare these cells for rapid response to immune stimuli.

2024-02-24 | GSE204734 | GEO

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