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Related Concept Videos

Smooth Muscle Contraction01:25

Smooth Muscle Contraction

Smooth muscle contraction is a complex process vital for various bodily functions, from maintaining blood vessel tension to facilitating the movement of food through the digestive tract. Unlike striated muscles, smooth muscle contraction begins more slowly and lasts longer.
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GPCRs are primarily responsible for our sense of smell, taste, and vision.  The binding of a sensory stimulus activates GPCR to stimulate effector proteins, many of which are ion channels in the sensory organs. GPCRs modulate the opening and closing of the target ion channels either directly by binding them, or by releasing second messengers that activate these channels. As ions move across the membrane, the membrane potential is altered, which induces an appropriate response.
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Two...
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Related Experiment Video

Updated: Jun 12, 2026

Expression and Purification of the Human Lipid-sensitive Cation Channel TRPC3 for Structural Determination by Single-particle Cryo-electron Microscopy
08:27

Expression and Purification of the Human Lipid-sensitive Cation Channel TRPC3 for Structural Determination by Single-particle Cryo-electron Microscopy

Published on: January 7, 2019

TRPC channels in smooth muscle cells.

Jose C Gonzalez-Cobos1, Mohamed Trebak

  • 1The Center for Cardiovascular Sciences, Albany Medical College, Albany, NY, USA.

Frontiers in Bioscience (Landmark Edition)
|June 3, 2010
PubMed
Summary
This summary is machine-generated.

Transient receptor potential canonical (TRPC) channels are key regulators of smooth muscle function. This review analyzes TRPC channel roles in calcium entry and physiological responses, particularly in the vascular system.

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Area of Science:

  • Physiology
  • Molecular Biology
  • Pharmacology

Background:

  • Transient receptor potential canonical (TRPC) proteins are nonselective cation channels in the TRP superfamily.
  • TRPC1, TRPC3, TRPC4, TRPC5, and TRPC6 are expressed in human vascular smooth muscle and other smooth muscle tissues.
  • TRPC channels are increasingly recognized for their critical roles in regulating smooth muscle function.

Purpose of the Study:

  • To review the contribution of TRPC channels to native calcium entry pathways in smooth muscle.
  • To analyze the role of TRPC channels in physiological and pathophysiological responses, with a focus on the vascular system.

Main Methods:

  • Retrospective analysis of existing studies.
  • Literature review focusing on TRPC channel function in smooth muscle.

Main Results:

  • TRPC channels are integral to calcium influx in various smooth muscle types.
  • Evidence suggests TRPC channel involvement in vascular tone regulation and disease.

Conclusions:

  • TRPC channels are significant contributors to smooth muscle physiology and pathophysiology.
  • Further research into TRPC channels may reveal therapeutic targets for smooth muscle disorders.