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Selenium Supplementation Elevated SELENBP1 to Inhibit Fibroblast Activation in Pulmonary Arterial Hypertension

ABSTRACT: Prophylactic selenium supplementation could effectively improve hemodynamics and pulmonary vascular remodeling in monocrotaline-induced pulmonary hypertension rat models. We scanned the selenium-related proteins through proteomic profiles on pulmonary artery branches of monocrataline rats versus control rats to elucidate the mechanism.

ORGANISM(S): Rattus Norvegicus

SUBMITTER: Zhali Huang

PROVIDER: PXD056117 | iProX | Sun Sep 22 00:00:00 BST 2024

REPOSITORIES: iProX

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Selenium supplementation elevated SELENBP1 to inhibit fibroblast activation in pulmonary arterial hypertension.

Liang Benhui B Lin Wenchao W Tang Yiyang Y Li Tangzhiming T Chen Qin Q Zhang Wen W Zhou Xinyi X Ma Jiayao J Liu Boqing B Yu Zaixin Z Zha Lihuang L Zhang Mengqiu M

iScience 20240926 10

Pulmonary arterial hypertension (PAH) is a life-threatening disease induced by abnormal activation of pulmonary adventitial fibroblasts (PAFs) in the early stage. The association between selenium deficiency and PAH is not yet fully understood. In this study, we found that the serum selenium content of PAH patients was significantly lower than that of healthy volunteers in two independent cohorts. Moreover, PAH patients with lower selenium levels may present poorer prognosis. Prophylactic seleniu ...[more]

PMID: 39435142

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Selenium supplementation elevated SELENBP1 to inhibit fibroblast activation in pulmonary arterial hypertension.

Project description:Pulmonary arterial hypertension (PAH) is a life-threatening disease induced by abnormal activation of pulmonary adventitial fibroblasts (PAFs) in the early stage. The association between selenium deficiency and PAH is not yet fully understood. In this study, we found that the serum selenium content of PAH patients was significantly lower than that of healthy volunteers in two independent cohorts. Moreover, PAH patients with lower selenium levels may present poorer prognosis. Prophylactic selenium supplementation could effectively improve hemodynamics and pulmonary vascular remodeling in monocrotaline-induced pulmonary hypertension rat models. Mechanistically, selenium supplementation restored the level of selenium binding protein 1 (SELENBP1) which could exert an antagonistic effect on PAF activation. The rescue assay further proved that selenium supplementation worked in a SELENBP1-dependent manner. These findings demonstrated that selenium deficiency is an important risk factor in PAH, and the selenium-SELENBP1 axis represents a promising target for PAH prevention.

| S-EPMC11492086 | biostudies-literature

Heart ventricles proteomic profile in pulmonary arterial hypertension

Project description:Arterial pulmonary hypertension is a rare disease, with little knowledge regarding its etiology, and high mortality. Development of right and later on also left ventricular heart insufficiency, secondary to pulmonary hypertension, is a negative predictive factor. Genetic and molecular processes underlying left heart ventricle remodeling over the course of pulmonary hypertension remain unknown. In particular, there is no knowledge regarding the mechanisms of left heart ventricle atrophy which was completely avoided by researchers until recently.The aim of this study was to assess changes in protein abundance in left and right heart ventricle free wall of rats in monocrotaline model of PAH.

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The expression signatures of circRNA in MCT-induced pulmonary arterial hypertension rat

Project description:To investigate the underlying mechanism of pulmonary hypertension, the model of monocrotaline (MCT)-treated pulmonary arterial hypertension (PAH) rats were constructed to detect the differentially expressed profile of circRNAs in lung tissue of PAH rat. The whole genome microarray expression profiling analysis as a discovery platform have been employed to identify genes difference.

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Project description:We examined the molecular pathways underlying the DAPM-induced pulmonary arterial hypertension in intact and ovariectomized female rats.

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RNA-sequencing analysis of lung tissue from monocrotaline-induced pulmonary arterial hypertension rats

Project description:To investigate the genes associated with the progression pulmonary arterial hypertension，lung tissues of rats treated either with PBS buffer or monocrotaline (50mg/kg）were harvested for RNA-sequencing.

2023-04-14 | GSE229361 | GEO

Metabolomic heterogeneity of severe pulmonary arterial hypertension

Project description:Although multiple gene and protein expression have been extensively profiled in human pulmonary arterial hypertension (PAH), the mechanism for the development and progression of pulmonary hypertension remains elusive. Analysis of the global metabolomic heterogeneity within the pulmonary vascular system leads to a better understanding of disease progression. Using a combination of high-throughput liquid-and-gas-chromatography-based mass spectrometry, we showed unbiased metabolomic profiles of disrupted glycolysis, increased TCA cycle, and fatty acid metabolites with altered oxidation pathways in the severe human PAH lung. The results suggest that PAH has specific metabolic pathways contributing to increased ATP synthesis for the vascular remodeling process in severe pulmonary hypertension. These identified metabolites may serve as potential biomarkers for the diagnosis of severe PAH. By profiling metabolomic alterations of the PAH lung, we reveal new pathogenic mechanisms of PAH in its later stage, which may differ from the earlier stage of PAH, opening an avenue of exploration for therapeutics that target metabolic pathway alterations in the progression of PAH. Global profiles were determined in human lung tissue and compared across 11 normal and 12 severe pulmonary arterial hypertension patients. Using a combination of microarray and high-throughput liquid-and-gas-chromatography-based mass spectrometry, we showed unbiased metabolomic profiles of disrupted glycolysis, increased TCA cycle, and fatty acid metabolites with altered oxidation pathways in the severe human PAH lung.

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Gene expression profiling of pulmonary arterial hypertension

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The expression of microRNA-30 family in pulmonary arterial hypertension

Project description:miRNAs have been proved to participate in the regulation of proliferation and apoptosis in many diseases,we consider there may be associations between miRNAs and development of pulmonary arterial hypertension (PAH). Previous studies have revealed that several miRNAs participated in the regulation of the development of PAH. In this study, we investigated the miRNA differential expression spectrum in pulmonary arterial hypertension patients.

2021-10-01 | E-MTAB-10932 | biostudies-arrayexpress

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