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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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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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Mechanically-gated ion channels are proteins found in eukaryotic and prokaryotic cell membranes that open in response to mechanical stress. Tension, compression, swelling, and shear stress can alter the conformation of the protein, opening a transmembrane channel that allows the passage of ions for signal transmission. In eukaryotes, mechanically-gated channels are distributed in several regions like the neurons, lungs, skin, bladder, and heart, where they play critical roles in numerous...
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Overview of Cell-Matrix Interactions01:24

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The extracellular matrix or ECM holds cells together to form a tissue and allows the cells within the tissue to communicate. ECM comprises proteins such as fibronectin, collagen, laminin, etc. The most abundant protein in this space is collagen. Collagen fibers are interwoven with carbohydrate-containing protein molecules called proteoglycans. ECM allows cell migration and provides a structural scaffold at cell adhesion that anchors the cell when the extracellular matrix proteins interact with...
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Inflammation01:38

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Inflammatory Response01:28

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An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
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Related Experiment Video

Updated: May 23, 2025

A Mouse Model of Mechanotransduction-driven, Human-like Hypertrophic Scarring
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A Mouse Model of Mechanotransduction-driven, Human-like Hypertrophic Scarring

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Mechanotransduction and inflammation: An updated comprehensive representation.

Vennila Suriyagandhi1, Ying Ma1,2, Veronica Paparozzi1

  • 1Consiglio Nazionale delle Ricerche, Istituto per le Applicazioni del Calcolo "Mauro Picone" (IAC), 00185 Roma, Italy.

Mechanobiology in Medicine
|May 21, 2025
PubMed
Summary

This study unifies mechanotransduction and inflammation, exploring how mechanical forces impact cellular signaling. It highlights RAC1 as a key molecule for future medical translation in understanding these complex biological processes.

Keywords:
EnrichmentInflammationMechanotransductionNetwork analysisRAC1Systems biology markup language (SBML)

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Area of Science:

  • Cell Biology
  • Systems Biology
  • Immunology

Background:

  • Mechanotransduction converts mechanical stimuli into cellular signals.
  • The systemic interaction between mechanical input and inflammation is not well understood.
  • Current research often compartmentalizes mechanical stimuli and inflammation.

Purpose of the Study:

  • To present a unified view of mechanotransduction in relation to inflammation.
  • To explore the translational potential of understanding mechanical stimuli and inflammation.
  • To identify key molecular players in this integrated system.

Main Methods:

  • Pathway representation using Systems Biology Markup Language (SBML).
  • Network biology approaches for systems-level analysis.
  • Identification and analysis of key signaling molecules.

Main Results:

  • A unified framework for mechanotransduction and inflammation was developed.
  • RAC1 was identified as an exemplar molecule with significant translational potential.
  • Network analysis provided insights into the systemic interactions.

Conclusions:

  • A unified perspective is crucial for understanding the mechanotransduction-inflammation axis.
  • RAC1 represents a promising target for medical interventions.
  • This systems biology approach offers a foundation for future research and therapeutic development.