Localized, oscillating Ca signals have been identified in discrete microdomains of vascular endothelial cells. At myoendothelial contacts (between endothelial and smooth muscle cells), both endothelial Ca pulsars (IP-mediated release of intracellular Ca) and Ca sparklets (extracellular Ca entry via TRP channels) contribute to endothelium-dependent hyperpolarization of smooth muscle, vasodilation, and feedback control of vasoconstriction. Ca sparklets occurring at close-contact domains between endothelial cells are possibly involved in conducted hyperpolarization and spreading vasodilation in arterial networks. This review summarizes these Ca signalling phenomena, examines the proposed mechanisms leading to their generation by G-protein-coupled receptor agonists, and explores the proposed physiological roles of these localized and specialized Ca signals.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.coph.2019.03.005 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Development of Electrospinning Setup for Vascular Tissue-Engineering Application with Thick-Hierarchical Fiber Alignment.
Tissue Eng Regen Med
January 2025
College of Materials Science and Engineering, Hunan University, Changsha, 410072, People's Republic of China.
Background: Tissue engineering holds promise for vascular repair and regeneration by mimicking the extracellular matrix of blood vessels. However, achieving a functional and thick vascular wall with aligned fiber architecture by electrospinning remains a significant challenge.
Methods: A novel electrospinning setup was developed that utilizes an auxiliary electrode and a spring.
[Berberine ameliorates coronary artery endothelial cell injury in Kawasaki disease through complement and coagulation cascades].
Zhongguo Dang Dai Er Ke Za Zhi
January 2025
Department of Pediatrics, Third People's Hospital of Longgang District of Shenzhen, Shenzhen, Guangdong 518020, China.
Objectives: To explore the role of berberine (BBR) in ameliorating coronary endothelial cell injury in Kawasaki disease (KD) by regulating the complement and coagulation cascade.
Methods: Human coronary artery endothelial cells (HCAEC) were divided into a healthy control group, a KD group, and a BBR treatment group (=3 for each group). The healthy control group and KD group were supplemented with 15% serum from healthy children and KD patients, respectively, while the BBR treatment group received 15% serum from KD patients followed by the addition of 20 mmol/L BBR.
Parthenolide improves sepsis-induced coagulopathy by inhibiting mitochondrial-mediated apoptosis in vascular endothelial cells through BRD4/BCL-xL pathway.
J Transl Med
January 2025
Department of Anesthesiology, Daping Hospital, Army Medical University, No.10, Changjiang Road, Yuzhong District, Chongqing, 400042, China.
Background: Sepsis is a systemic inflammatory syndrome that can cause coagulation abnormalities, leading to damage in multiple organs. Vascular endothelial cells (VECs) are crucial in the development of sepsis-induced coagulopathy (SIC). The role of Parthenolide (PTL) in regulating SIC by protecting VECs remains unclear.
View Article and Find Full Text PDFGold(I) N-heterocyclic carbene complexes show strong proapoptotic, antioxidant and anti-inflammatory effects in A2780 and endothelial cells.
Chem Biol Interact
January 2025
Institute of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Schwarzspanierstrasse 17, 1090 Vienna, Austria. Electronic address:
A series of eight gold(I) N-heterocyclic carbene (NHC) complexes [Au(IMes)(HLn)] based on 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene (IMes) and 7-azaindole derivatives (HLn), where n = 1-8 for HL1 = 5-flouro-7-azaindole, HL2 = 5-bromo-7-azaindole, HL3 = 3-chloro-7-azaindole, HL4 = 3-iodo-7-azaindole, HL5 = 5-bromo-3-chloro-7-azaindole, HL6 = 5-bromo-3-iodo-7-azaindole, HL7 = 4-chloro-2-methyl-7-azaindole and HL8 = 7-azaindole, was prepared, characterised and studied for their in vitro anti-cancer and anti-inflammatory effects. The complexes showed significant cytotoxicity on human ovarian cancer cell lines (A2780, IC ≈ 8-19 μM and A2780R, IC ≈ 8-19 μM) and lowered toxicity in normal HaCat and MRC-5 cells. Cellular effects of the selected complexes 1 and 7 were evaluated in A2780 cells using flow cytometry.
View Article and Find Full Text PDFThe interactive toxic effect of homocysteine and copper on cardiac microvascular endothelial cells during ischemia-reperfusion injury.
Chem Biol Interact
January 2025
Department of Thoracic Surgery, The 1st Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, Jiangxi, PR China; Jiangxi Hospital of China-Japan Friendship Hospital, National Regional Center for Respiratory Medicine, Nanchang 330000, Jiangxi, PR China; Jiangxi Institute of Respiratory Disease, The 1st Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330000, Jiangxi, PR China. Electronic address:
Hyperhomocysteinemia (HHcy) is associated with the development and progression of chronic cardiovascular diseases through the deleterious effects of high levels of homocysteine (Hcy) on the cardiovascular system. However, the exact mechanism of action of Hcy on the acute injury of the cardiovascular system following ischemia/reperfusion (I/R) remains unclear. The present study demonstrated that copper mobilization occurs during cardiac I/R, and the interactive toxic effect of Hcy and mobile Cu during cardiac I/R induces necroptosis of cardiac microvascular endothelial cells (CMECs) and thus enhances cardiac dysfunction.
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!