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Updated: Jul 2, 2025

Noninvasive Assessment of Cardiac Abnormalities in Experimental Autoimmune Myocarditis by Magnetic Resonance Microscopy Imaging in the Mouse
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Noninvasive Assessment of Cardiac Abnormalities in Experimental Autoimmune Myocarditis by Magnetic Resonance Microscopy Imaging in the Mouse

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So close, yet so far away: the relationship between MAM and cardiac disease

Bo Lu1,2, Xiaozhe Chen1,3, Yulong Ma1

  • 1Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.

Frontiers in Cardiovascular Medicine
|February 20, 2024
PubMed

Insights

Mitochondria-associated membranes (MAM) are key ER-mitochondria contact sites vital for heart health. Regulating MAM offers a promising therapeutic strategy for preventing and treating cardiac diseases.

Area of Science:

  • Cell Biology
  • Cardiovascular Science
  • Mitochondrial Biology

Background:

  • Mitochondria-associated membranes (MAM) are critical contact sites between the endoplasmic reticulum (ER) and mitochondria.
  • MAM plays a vital role in cellular processes including calcium signaling, ATP production, and autophagy.

Purpose of the Study:

  • To review the structure and function of key MAM regulators.
  • To explore the role of MAM in cardiac diseases and injuries.
  • To discuss the therapeutic potential of MAM regulation in heart failure.

Main Methods:

  • Literature review of recent research on MAM structure, function, and regulation.
  • Analysis of studies linking MAM to various cardiac conditions.
  • Synthesis of information on therapeutic strategies targeting MAM.

Main Results:

  • MAM proteins form essential tethers between ER and mitochondria in cardiomyocytes.
  • MAM exhibits regulatory effects crucial for maintaining cellular balance in cardiac diseases like obesity, diabetes, and cardiotoxicity.
  • Key MAM regulators have distinct structures and functions influencing cellular homeostasis.

Conclusions:

  • MAM is integral to cardiomyocyte function and cellular balance.
  • Dysregulation of MAM is implicated in the pathophysiology of various cardiac injuries.
  • Targeting MAM through genetic, pharmacological, or physical means presents a promising avenue for heart failure prevention and treatment.
Keywords:
Ca2+ homeostasisapoptosisautophagycardiac diseasemitochondria-associated membrane

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