Related Experiment Video
Updated: Jul 15, 2026
06:09
Using En Face Immunofluorescence Staining to Observe Vascular Endothelial Cells Directly
Published on: August 20, 2019
TRP channels in endothelial function and dysfunction.
Hiu-Yee Kwan1, Yu Huang, Xiaoqiang Yao
1Li Ka Shing Institute of Health Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China.
Biochimica Et Biophysica Acta
|April 17, 2007
Summary
Transient receptor potential (TRP) channels are crucial for endothelial cell function. Their malfunction is linked to endothelial dysfunction and cardiovascular diseases, highlighting their role in vascular health.
Area of Science:
- Cardiovascular Biology
- Cell Physiology
- Molecular Medicine
Background:
- Endothelial cells regulate vital vascular functions, and their dysfunction underlies numerous cardiovascular diseases.
- Transient receptor potential (TRP) channels are key regulators of endothelial cell activity, influencing calcium levels and membrane potential.
Purpose of the Study:
- To review the literature on the role of TRP channels in endothelial cells.
- To emphasize the association between TRP channel dysregulation and endothelial dysfunction.
Main Methods:
- Comprehensive literature review of studies on TRP channels in endothelial cells.
- Analysis of evidence linking specific TRP channel isoforms to endothelial dysfunction mechanisms.
Main Results:
- TRP channel malfunction is implicated in decreased nitric oxide bioavailability, impaired vascular tone, and barrier dysfunction.
- Specific TRP channels (TRPC4, C1, TRPP1, P2, TRPC4, V1, TRPV4, TRPC3, C4) are linked to distinct aspects of endothelial dysfunction, including impaired relaxation, reduced flow responses, and oxidative stress.
Conclusions:
- TRP channels are critical players in maintaining endothelial function.
- Dysregulation of TRP channels significantly contributes to the pathogenesis of endothelial dysfunction and associated cardiovascular diseases.
Related Concept Videos
01:00Enzyme-linked Receptors
Enzyme-linked receptors are proteins that act as both receptor and enzyme, activating multiple intracellular signals. This is a large group of receptors that include the receptor tyrosine kinase (RTK) family. Many growth factors and hormones bind to and activate the RTKs.
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
01:27Transducer Mechanism: Enzyme-Linked Receptors
Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
Major types that are helpful drug targets include:
01:43Thermosensation
Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
01:24Regulation of Angiogenesis and Blood Supply
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...
01:16Vascular Spasm
The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last for...
01:18Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists
Endothelins (ETs) are potent vasoactive peptides critical in the human body's various physiological and pathological processes. One of the most promising therapeutic strategies for treating pulmonary arterial hypertension (PAH) involves counteracting the effects of these endothelins using a class of drugs known as endothelin receptor antagonists.
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme (ECE). Of...
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme (ECE). Of...