Novel Perspective of Cardiovascular Diseases: Volume-Regulatory Anion Channels in the Cell Membrane

Liming Hou1, Yan Liu1, Chao Sun1

  • 1Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.

Membranes
|July 25, 2022
PubMed

Insights

Volume-regulated anion channels (VRAC) are key to cardiovascular health. Understanding VRAC function offers new therapeutic strategies for cardiovascular diseases (CVDs).

Area of Science:

  • Cardiovascular Physiology
  • Cellular Biology
  • Molecular Medicine

Background:

  • Cardiovascular diseases (CVDs) remain a leading global health concern, with current treatments lacking complete efficacy.
  • Ion channel dysregulation is increasingly implicated in cardiovascular system dysfunction.
  • Volume-regulated anion channels (VRAC) are vital for cellular homeostasis and function.

Purpose of the Study:

  • To review current evidence on the role of VRAC in cardiovascular diseases.
  • To explore VRAC as a potential therapeutic target for CVDs.
  • To identify future research directions and challenges in VRAC-related CVD prevention and treatment.

Main Methods:

  • Literature review of studies investigating VRAC.
  • Analysis of VRAC's involvement in cellular processes relevant to cardiovascular function.
  • Synthesis of current knowledge on VRAC in the context of CVDs.

Main Results:

  • VRAC plays critical roles in cell action potential generation, proliferation, differentiation, and apoptosis.
  • VRAC is implicated in metabolic processes central to the pathophysiology of CVDs.
  • Dysregulation of VRAC contributes to cardiovascular dysfunction.

Conclusions:

  • VRAC is a significant factor in cardiovascular health and disease.
  • Targeting VRAC presents promising avenues for novel CVD therapies.
  • Further research is needed to fully elucidate VRAC's role and therapeutic potential in CVDs.

Related Concept Videos

Regulation of Stroke Volume01:27

Regulation of Stroke Volume

The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
3.4K
Regulation of the Cardiovascular System01:27

Regulation of the Cardiovascular System

The regulation of the cardiovascular system allows the body to adapt to various demands and maintain homeostasis.
The regulation of the cardiovascular system involves the autonomic nervous system (ANS), baroreceptors, and chemoreceptors, ensuring that heart rate and blood pressure are appropriately modulated in response to varying physiological demands.
The ANS comprises two main divisions: the sympathetic and parasympathetic nervous systems. The sympathetic nervous system enhances...
1.7K
Voltage-gated Ion Channels01:26

Voltage-gated Ion Channels

Voltage-gated ion channels are transmembrane proteins that open and close in response to changes in the membrane potential. They are present on the membranes of all electrically excitable cells such as neurons, heart, and muscle cells.
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several...
8.5K
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
31
Neural Regulation of Blood Pressure01:18

Neural Regulation of Blood Pressure

The neural regulation of blood pressure involves intricate interactions between the autonomic nervous system (ANS) and cardiovascular system, ensuring adequate perfusion of tissues. This regulation primarily occurs through baroreceptor and chemoreceptor reflexes, involving both short-term and long-term mechanisms.
Baroreceptor Reflex
Baroreceptors, located in the carotid sinuses and aortic arch, detect changes in blood pressure. When blood pressure rises, these stretch-sensitive receptors...
3.3K
Electrochemical Gradient and Channel Proteins: An Overview01:21

Electrochemical Gradient and Channel Proteins: An Overview

An electrochemical gradient is a fundamental concept in biology and chemistry. It regulates the movement of ions across cell membranes. This movement is influenced by two factors:
The electrical gradient: The electrical gradient across cell membranes refers to the difference in electric charge between the inside and outside of a cell.  This difference drives the movement of ions towards or away from the cells. For instance, if the inside of the cell is more negatively charged relative to...
2.5K