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Epigenetic Alteration of Smooth Muscle Cells Regulates Endothelin-Dependent Blood Pressure and Hypertensive Arterial Remodeling [km_mouse]

ABSTRACT: Epigenetic Alteration of Smooth Muscle Cells Regulates Endothelin-Dependent Blood Pressure and Hypertensive Arterial Remodeling [km_mouse]

PROVIDER: PRJNA1236345 | ENA |

REPOSITORIES: ENA

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Epigenetic Alteration of Smooth Muscle Cells Regulates Endothelin-Dependent Blood Pressure and Hypertensive Arterial Remodeling [km_mouse]

Project description:Long-standing hypertension (HTN) affects multiple organs and leads to pathologic arterial remodeling, which is driven by smooth muscle cell (SMC) plasticity. To identify relevant genes regulating SMC function in HTN, we considered Genome Wide Association Studies (GWAS) of blood pressure, focusing on genes encoding epigenetic enzymes, which control SMC fate in cardiovascular disease. Using statistical fine mapping of the KDM6 (JMJD3) locus, we found that rs62059712 is the most likely casual variant, with each major T allele copy associated with a 0.47 mmHg increase in systolic blood pressure. We show that the T allele decreased JMJD3 transcription in SMCs via decreased SP1 binding to the JMJD3 promoter. Using our unique SMC-specific Jmjd3-deficient murine model (Jmjd3flox/floxMyh11CreERT), we show that loss of Jmjd3 in SMCs results in HTN due to decreased EDNRB expression and increased EDNRA expression. Importantly, the Endothelin Receptor A antagonist, BQ-123, reversed HTN after Jmjd3 deletion in vivo. Additionally, single cell RNA-sequencing (scRNA-seq) of human arteries revealed strong correlation between JMJD3 and EDNRB in SMCs. Further, JMJD3 is required for SMC-specific gene expression, and loss of JMJD3 in SMCs increased HTN-induced arterial remodeling. Our findings link a HTN-associated human DNA variant with regulation of SMC plasticity, revealing targets that may be used in personalized management of HTN.

2025-03-21 | GSE292027 | GEO

Epigenetic Alteration of Smooth Muscle Cells Regulates Endothelin-Dependent Blood Pressure and Hypertensive Arterial Remodeling [km_human_mouse]

2025-03-21 | GSE292037 | GEO

Epigenetic Alteration of Smooth Muscle Cells Regulates Endothelin-Dependent Blood Pressure and Hypertensive Arterial Remodeling [km_human_mouse]

Project description:Epigenetic Alteration of Smooth Muscle Cells Regulates Endothelin-Dependent Blood Pressure and Hypertensive Arterial Remodeling [km_human_mouse]

| PRJNA1236360 | ENA

Cardiac Hypertensive-Cmpd17b (therapeutic)

Project description:Formyl peptide receptors (FPR) play a critical role in the regulation of resolution of inflammation, an important mediator of hypertension-induced cardiac damage. We have previously discovered an FPR small-molecule prototype Cmpd17b exhibit cardioprotective effects against acute and severe cardiac inflammatory insults, but its impact on chronic cardiac inflammatory insult, such as hypertension, has not been explored. To investigate the therapeutic potential of our FPR agonist on mean arterial pressure (MAP), cardiac remodelling and function in hypertensive mice.

2023-02-23 | PXD035034 | Pride

Murine pulmonary arterial smooth muscle cells: Wild-type vs. NOX1 deficiency (miRNA profiling)

Project description:NOX1 is a catalytic subunit of nonphagocytic NADPH oxidase, mainly localized to smooth muscle cells in the vasculature. We investigated the pathology underlying the pulmonary arterial hypertension-like phenotype demonstrated in mice deficient in the Nox1 gene (Nox1-KO). Spontaneous enlargement and hypertrophy of the right ventricle, accompanied by hypertrophy of pulmonary vessels, were demonstrated in Nox1-KO at 9-18 weeks of age. Since an increased number of ?-smooth muscle actin-positive vessels was observed in Nox1-KO, pulmonary arterial smooth muscle cells (PASMCs) were isolated and characterized by flow cytometry and TUNEL staining. In Nox1-/Y PASMC, the number of apoptotic cells was significantly reduced without any change in the expression of endothelin-1, and hypoxia-inducible factors HIF-1a and HIF-2a, factors implicated in the pathogenesis of PAH. microRNA expression profiling of mouse pulmonary arterial smooth muscle cells in wild-type and NOX1-KO was analyzed. Pulmonary arterial smooth muscle cells were harvested form 3 mice.

2014-01-22 | E-GEOD-42015 | biostudies-arrayexpress

Murine pulmonary arterial smooth muscle cells: Wild-type vs. NOX1 deficiency (mRNA profiling)

Project description:NOX1 is a catalytic subunit of nonphagocytic NADPH oxidase, mainly localized to smooth muscle cells in the vasculature. We investigated the pathology underlying the pulmonary arterial hypertension-like phenotype demonstrated in mice deficient in the Nox1 gene (Nox1-KO). Spontaneous enlargement and hypertrophy of the right ventricle, accompanied by hypertrophy of pulmonary vessels, were demonstrated in Nox1-KO at 9-18 weeks of age. Since an increased number of α-smooth muscle actin-positive vessels was observed in Nox1-KO, pulmonary arterial smooth muscle cells (PASMCs) were isolated and characterized by flow cytometry and TUNEL staining. In Nox1-/Y PASMC, the number of apoptotic cells was significantly reduced without any change in the expression of endothelin-1, and hypoxia-inducible factors HIF-1a and HIF-2a, factors implicated in the pathogenesis of PAH. Transcriptional profiling of mouse pulmonary arterial smooth muscle cells in wild-type and NOX1-KO was analyzed. Pulmonary arterial smooth muscle cells were harvested from 3 mice.

2014-01-22 | E-GEOD-42014 | biostudies-arrayexpress

Altered neurotrophin expression profiles in the nucleus of the solitary tract of spontaneously hypertensive rats

Project description:Our previous findings suggest that the nucleus of the solitary tract (NTS), a pivotal region for regulating the set-point of arterial pressure, exhibits abnormal inflammation in pre-hypertensive and spontaneously hypertensive rats (SHRs) together with elevated anti-apoptotic and low apoptotic factor levels compared with that of normotensive Wistar–Kyoto (WKY) rats. Whether this chronic condition affects neuronal growth and plasticity in the NTS remains unknown. To unveil the characteristics of the neurodevelopmental environment in the NTS of hypertensive rats, we investigated the gene expression profile of neurotrophins and their receptors in SHRs compared to that of normotensive rat WKY.

2015-04-15 | GSE67874 | GEO

A Single-Short Partial Reprogramming of the Endothelial Cells decreases Blood Pressure via attenuation of EndMT in Hypertensive Mice

Project description:Small artery remodeling and endothelial dysfunction are hallmarks of hypertension. Evidence supports a likely causal association between cardiovascular diseases and endothelial-to-mesenchymal transition (EndMT), a cellular transdifferentiation process in which endothelial cells (ECs) partially lose their identity and acquire mesenchymal phenotypes. EC reprogramming represents an innovative strategy in regenerative medicine to prevent deleterious effects induced by cardiovascular diseases. We hypothesized that arteries from hypertensive mice present high levels of EndMT and that specific EC reprogramming can decrease blood pressure values and restore vascular function in resistance arteries in hypertensive mice. Here, we demonstrated OSK overexpression induced partial EC reprogramming in vitro, and these cells had lower migratory capability. Using spatial whole transcriptome atlas, we showed that OSK treatment of hypertensive BPH/2J mice attenuated EndMT and elastin breaks, and by other assays, we showed that OSK treatment reduced blood pressure and resistance arteries hypercontractility. OSK-treated hypertensive HAoECs showed high eNOS activation and NO production, with low ROS formation. Single-cell RNA analysis showed that OSK alleviated EC senescence and EndMT, restoring their phenotypes in HAoECs from hypertensive patients. Overall, these data indicate that OSK treatment and EC reprogramming can decrease blood pressure and reverse hypertension-induced vascular damage.

2025-08-26 | GSE298954 | GEO

Differential proteomics - Pulmonary pressure reduction attenuates expression of proteins identified by lung proteomic profiling in pulmonary hypertensive rats

Project description:Pulmonary pressure reduction attenuates expression of proteins identified by lung proteomic profiling in pulmonary hypertensive rats

2011-09-28 | PRD000524 | Pride

Quantitative TMT proteomics of brainstem in spontaneously hypertensive rats

Project description:The brainstem, the core of the central nervous system, plays a vital role in controlling arterial blood pressure and its elevation of hypertension subtypes, especially essential hypertension. Integrative metabolic and proteomic profiling was performed on the brainstem samples of 11-week-old spontaneously hypertensive rats (SHRs) and age-matched normotensive Wistar rats, using hydrophilic interaction liquid chromatography-quadrupole/time-of-flight mass spectrometry (HILIC-Q/TOFMS) and nano-liquid chromatography-high-resolution-mass spectrometry (nano-LC-high-resolution-MS) combined with quantitative tandem mass tags (TMT).

2020-09-24 | PXD021210 | Pride

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