Pulsed electromagnetic fields inhibit atherosclerosis by regulating pyroptosis through membrane tension-mediated

Hongxin Cheng1,2, Qing Zhang1,2, Wen Zhong1,2

  • 1Department of Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China.

Insights

Pulsed electromagnetic fields (PEMFs) show promise for treating atherosclerosis by reducing inflammation and pyroptosis. This noninvasive therapy targets endothelial cell dysfunction, offering a new approach for cardiovascular disease.

Area of Science:

  • Cardiovascular Science
  • Biomedical Engineering
  • Cell Biology

Background:

  • Atherosclerosis is a major cause of cardiovascular diseases, with current treatments having limitations.
  • Endothelial cell inflammation and pyroptosis are key features of atherosclerosis progression.
  • Novel therapeutic strategies are needed to address the unmet needs in atherosclerosis treatment.

Purpose of the Study:

  • To investigate the therapeutic potential of pulsed electromagnetic fields (PEMFs) in treating atherosclerosis.
  • To elucidate the underlying mechanisms of PEMF action on endothelial cells and atherosclerosis.
  • To explore PEMFs as a noninvasive treatment for cardiovascular and arterial diseases.

Main Methods:

  • Utilized ApoE-/- and ApoE-/-NLRP3-/- knockout mice models.
  • Conducted experiments on human umbilical vein endothelial cells (HUVECs) and human aortic endothelial cells (HAECs).
  • Performed proteomic analysis on plasma samples from atherosclerosis patients and mechanistic studies involving mitochondrial function and TRPV4 channels.

Main Results:

  • PEMFs effectively inhibited NLRP3 inflammasome activation, reduced atherosclerotic plaque formation, and delayed disease progression.
  • Significant endothelial cell inflammation and pyroptosis were observed during atherosclerosis.
  • PEMFs improved mitochondrial dysfunction in endothelial cells by regulating membrane tension and TRPV4 channels, reducing pyroptosis.

Conclusions:

  • PEMFs represent a promising noninvasive therapeutic strategy for atherosclerosis.
  • The study reveals a novel mechanobiological pathway involving membrane tension, TRPV4 channels, and mitochondrial function in PEMF treatment.
  • Findings provide a theoretical basis for developing PEMF-based therapies for atherosclerosis and related inflammatory diseases.

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