Background: Endothelin-1 (ET-1) is considered to be one of the most potent and long-lasting vasoconstrictive peptides, but the mechanisms on the regulation of ET-1 expression are not fully understood.
Method And Results: In this study, we found that microRNA (miR)-125a-5p and miR-125b-5p are highly expressed in vascular endothelial cells (VECs), which can be regulated by oxidized low-density lipoprotein (oxLDL). To explore the function of miR-125a/b-5p in VECs, we examined the roles of potential targets of miR-125a/b-5p that could influence endothelium function. We found that both miR-125a/b-5p can suppress oxLDL-induced ET-1 expression by directly targeting 3' untranslated region of prepro-endothelin-1 (preproET-1) mRNA determined by luciferase reporter assay, western blot, and enzyme immunometric assay. Consistently, inhibitors of miR-125a/b-5p can directly enhance preproET-1 expression. The decreased expressions of miR-125a-5p and miR-125b-5p are negatively associated with upregulation of preproET-1 expression in aorta of stroke-prone spontaneously hypertensive rats (SHR-SPs).
Conclusion: Our finding demonstrated that endothelial miR-125a/b-5p inhibits ET-1 expression in VECs, which revealed a novel miRNA-mediated mechanism in vasomotor homeostasis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1097/HJH.0b013e32833a4922 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dietary chlorogenic acid supplementation protects against lipopolysaccharide-induced oxidative stress, inflammation and apoptosis in intestine of amur ide (Leuciscus waleckii).
Aquat Toxicol
December 2024
College of Animal Science and Technology, Jilin Agriculture University, Changchun 130118, China; Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun 130118, China. Electronic address:
In this study, the alleviative effects of chlorogenic acid (CGA) on oxidative stress, inflammation and apoptosis of amur ide (Leuciscus waleckii) induced by lipopolysaccharide (LPS) were evaluated. Using a 2 × 2 factorial design, amur ide were irregularity divided into 4 groups and fed two diets with 0.00 % (CK and LPS), 0.
View Article and Find Full Text PDFComparative in vitro toxicity of compositionally distinct thermal spray particulates in human bronchial cells.
Toxicol Rep
December 2024
Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States.
Unlabelled: Thermal spray, in general, is a process that involves forcing a melted substance, such as metal or ceramic in the form of wire or powder, onto the surface of a targeted object to enhance its desired surface properties. In this paper, the melted substance is metal wire generated by an electric arc and forcibly coated on a rotary iron substrate using compressed air. This thermal process is referred to as double-wire arc thermal spray.
View Article and Find Full Text PDFChuanxiong Qingnao Granules (CQG) alleviates nitroglycerin-induced migraine-like pain in rats by glycerophospholipid metabolism and PI3K/Akt signaling pathway.
Phytomedicine
December 2024
Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China. Electronic address:
Background And Purpose: Chuanxiong Qingnao Granles (CQG), has been used to treat migraine headache (MH) for many years. However, current investigation of CQG have primarily focused on clinical studies, and the potential mechanisms underlying of its effects on MH have not been fully elucidated. In the present study, we applied an integrated approach of transcriptomics and metabolomics to elucidate the therapeutic mechanisms of CQG in nitroglycerin (NTG)-induced MH injury.
View Article and Find Full Text PDFSodium valproate reverses aortic hypercontractility in acute myocardial infarction in rabbits.
Eur J Pharmacol
December 2024
Department of Physiology, School of Medicine, University of Valencia, Spain; Institute of Health Research INCLIVA, Valencia, Spain; Center for Biomedical Research Network on Cardiovascular Diseases (CIBER-CV), Madrid, Spain. Electronic address:
Sympathetic nervous system (SNS), endothelin 1 (ET-1) and angiotensin II (Ang II) are involved in the pathophysiology of acute myocardial infarction (AMI). Valproic acid (VPA) is under study for the treatment against AMI due to its beneficial cardiac effects. However, the vascular effects of VPA on the activation of the SNS, ET-1 and Ang II after AMI are not fully studied.
View Article and Find Full Text PDF[Effect of Dendrobii Officinalis Caulis water extract on hyperviscosity rats based on TLR4/NF-κB/ICAM-1 signaling pathway].
Zhongguo Zhong Yao Za Zhi
October 2024
School of Pharmaceutical Sciences, Zhejiang Chinese Medical University Hangzhou 310053, China.
This study aims to reveal the effect and mechanism of Dendrobii Officinalis Caulis water extract on the rat model of hyperviscosity induced by a high-sugar, high-salt, and high-fat diet. Thirty-six male SD rats were randomized into normal, model, Compound Danshen Tablets(0.5 g·kg~(-1)), and low-, medium-, and high-dose(0.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!