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Related Concept Videos

Tension Response at Adherens Junctions01:26

Tension Response at Adherens Junctions

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The adherens junctions that anchor cells together are multi-protein complexes that dynamically adapt to mechanical stimuli such as tensile forces and shear stress. Mechanosensory proteins in these junctions can sense such mechanical stimuli and undergo a shift in their conformation, resulting in an altered function — a process called mechanotransduction.
α-Catenin as a Mechanosensory Protein
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Atherosclerosis I: Introduction01:30

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Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...
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Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
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In animal cells, the extracellular matrix allows cells within tissues to withstand external stresses and transmits signals from the outside of the cell to the inside. The extracellular matrix is extensive, and its composition varies between different types of tissues. For example, the reticular fibers and ground substance make up the ECM in loose connective tissue, while collagen and bone minerals make up the ECM of bone tissue. 
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Optical Coherence Tomography Based Biomechanical Fluid-Structure Interaction Analysis of Coronary Atherosclerosis Progression
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Flow-dependent cellular mechanotransduction in atherosclerosis.

Daniel E Conway1, Martin A Schwartz

  • 1Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA.

Journal of Cell Science
|November 6, 2013
PubMed
Summary
This summary is machine-generated.

Atherosclerosis plaque formation is influenced by both traditional risk factors and disturbed blood flow patterns. Understanding how mechanical forces interact with these factors is key to developing new therapies.

Keywords:
EndotheliumFluid shear stressVascular biology

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Area of Science:

  • Cardiovascular Biology
  • Biomedical Engineering
  • Pathophysiology

Background:

  • Atherosclerosis development is linked to risk factors like hyperlipidemia, smoking, hypertension, and diabetes.
  • Plaque formation occurs at specific arterial sites with disturbed blood flow, despite uniform risk factors.
  • Cellular force transduction mechanisms are increasingly recognized for their role in atherosclerosis.

Purpose of the Study:

  • To summarize current understanding of mechanotransduction in atherosclerosis.
  • To explore the synergy between mechanical forces and conventional risk factors.
  • To identify key questions for future therapeutic development.

Main Methods:

  • Review and integration of cellular studies.
  • Analysis of animal model data.
  • Examination of clinical data.

Main Results:

  • Mechanotransduction pathways are crucial in mediating plaque formation and progression.
  • Mechanical forces act in concert with traditional risk factors.
  • Specific flow patterns in disturbed regions influence disease localization.

Conclusions:

  • Understanding mechanotransduction is vital for novel atherosclerosis therapies.
  • Further research is needed to integrate mechanical and biological factors for effective treatment.
  • Synergistic approaches targeting both risk factors and biomechanics show promise.