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Analyses of Mitochondrial Calcium Influx in Isolated Mitochondria and Cultured Cells
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Analyses of Mitochondrial Calcium Influx in Isolated Mitochondria and Cultured Cells

Published on: April 27, 2018

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Mitochondrial calcium and reactive oxygen species in cardiovascular disease

Elizabeth Murphy1, Julia C Liu1

  • 1NHLBI, NIH, Bethesda, MD and Department of Integrative Biology and Physiology, University of Minnesota, 2231 6th St. SE, Minneapolis, MN 55455, USA.

Cardiovascular Research
|August 20, 2022
PubMed

Insights

Mitochondria are vital for heart cell energy and function. Their complex roles in energy production, calcium signaling, and oxidative stress are crucial in cardiovascular disease (CVD) development and treatment.

Area of Science:

  • Cardiovascular Biology
  • Mitochondrial Physiology
  • Cellular Metabolism

Background:

  • Cardiomyocytes possess a high mitochondrial volume (30-40%), essential for adenosine triphosphate (ATP) production, supplying up to 90% of cellular energy.
  • Mitochondria are central to cellular metabolism, ATP generation, reactive oxygen species (ROS) production, and cell death pathways.
  • Mitochondrial calcium (Ca2+) dynamics are critical regulators of mitochondrial functions, significantly impacting cellular processes.

Approach:

  • This review synthesizes current research on the interplay between mitochondrial energetics, Ca2+ handling, and ROS production.
  • It examines how these mitochondrial functions are implicated in the pathogenesis of cardiovascular disease (CVD).
  • The review highlights recent discoveries in the regulation and dysregulation of these pathways.

Key Points:

  • Mitochondrial energetics, Ca2+ signaling, and ROS production are interconnected pathways influencing cardiomyocyte function.
  • Dysregulation of these mitochondrial processes contributes significantly to the development and progression of CVD.
  • Understanding these interrelationships is key to identifying novel therapeutic targets for cardiovascular conditions.

Conclusions:

  • Mitochondria play a multifaceted role in cardiovascular health and disease.
  • Targeting mitochondrial pathways offers promising avenues for novel therapeutic strategies in CVD.
  • Further research into mitochondrial regulation is essential for advancing cardiovascular medicine.

Keywords:
CalciumMitochondriaROS

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