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Calcium ATPase and respiratory muscle function

M Aubier1, N Viires

  • 1INSERM U 408, Unité de Pneumologie, Hôpital Bichat, Paris, France.

The European Respiratory Journal
|May 22, 1998
PubMed
Summary
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The Sarco(endo)plasmic reticulum Ca2+-adenosine triphosphatase (SERCA) regulates muscle contraction by controlling calcium levels. This review details SERCA

Area of Science:

  • Muscle physiology
  • Cellular biology
  • Biochemistry

Background:

  • The sarcoplasmic reticulum (SR) is crucial for muscle contraction-relaxation cycles.
  • Cytoplasmic Ca2+ concentration regulation is a primary function of the SR.
  • The Sarco(endo)plasmic reticulum Ca2+-adenosine triphosphatase (SERCA) is key to this Ca2+ regulation.

Purpose of the Study:

  • To review the general properties of SERCA, including its structure, function, and activity regulation.
  • To describe variations in SERCA expression across different physiological and pathological conditions.
  • To highlight the limited data on SERCA in respiratory muscles.

Main Methods:

  • Review of existing literature on SERCA structure, function, and gene expression.
  • Analysis of SERCA expression patterns in skeletal and cardiac muscle.

Related Experiment Videos

  • Identification of research gaps, particularly concerning respiratory muscles.

    • Main Results:

    • SERCA isoforms (SERCA 1 and SERCA 2) are expressed in skeletal muscle.
    • SERCA activity is vital for inducing and maintaining muscle relaxation by sequestering Ca2+.
    • Significant data exists for SERCA in heart and skeletal muscles, but limited data for respiratory muscles.

    Conclusions:

    • SERCA plays a fundamental role in muscle function through Ca2+ regulation.
    • Understanding SERCA expression variations is important for various physiological and pathological states.
    • Further research is needed on SERCA in respiratory muscles due to limited current data.