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Related Concept Videos

The Extracellular Matrix01:29

The Extracellular Matrix

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In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
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The Extracellular Matrix01:42

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Extracellular Matrix01:26

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Unlike epithelial tissue, which is composed of cells closely packed with little or no extracellular space in between, connective tissue cells are dispersed in a matrix. This extracellular matrix (ECM) is composed of fibrous proteins like collagen, elastin, and fibronectin in a ground substance consisting of interstitial fluid, cell adhesion proteins, and proteoglycans. The proteoglycans form a gel-like material in the spaces between cells and provide hydration, buffering, binding, and force...
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Cell-matrix's Response to Mechanical Forces01:13

Cell-matrix's Response to Mechanical Forces

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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. 
Anchoring junctions mechanically attach a cell to the...
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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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Role of Matrix Metalloproteases in Degradation of ECM01:23

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Matrix metalloproteases (MMPs) are enzymes involved in the hydrolysis of proteins and glycoproteins of the extracellular matrix. MMPs are essential for the migration and proliferation of cells through the dense matrix network, throughout embryonic development, and throughout morphogenesis. The first MMP activity discovered was a collagenase in a tadpole's tail undergoing metamorphosis. The active collagen deposition and modifications lead to the morphogenesis of tadpoles into the adult...
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Related Experiment Video

Updated: Dec 17, 2025

Using Cell-substrate Impedance and Live Cell Imaging to Measure Real-time Changes in Cellular Adhesion and De-adhesion Induced by Matrix Modification
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Using Cell-substrate Impedance and Live Cell Imaging to Measure Real-time Changes in Cellular Adhesion and De-adhesion Induced by Matrix Modification

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Extracellular matrix dynamics in vascular remodeling.

Zihan Ma1, Chenfeng Mao1, Yiting Jia1

  • 1Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China.

American Journal of Physiology. Cell Physiology
|June 25, 2020
PubMed
Summary
This summary is machine-generated.

Vascular remodeling, crucial in aging and disease, is regulated by dynamic changes in the extracellular matrix (ECM). Understanding ECM

Keywords:
extracellular matrixmetalloproteasevascular remodeling

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Area of Science:

  • Cardiovascular Biology
  • Biomedical Engineering
  • Cellular and Molecular Medicine

Background:

  • Vascular remodeling is a key adaptive process in aging and vascular diseases.
  • The extracellular matrix (ECM) is central to the microenvironment and undergoes dynamic changes during remodeling.
  • Metalloproteases and ECM protein modifications are critical components of this dynamic process.

Purpose of the Study:

  • To review and summarize the role of extracellular matrix (ECM) dynamics in vascular remodeling.
  • To elucidate how ECM dynamics mechanistically control vascular remodeling.
  • To identify potential diagnostic biomarkers and therapeutic targets within the ECM for vascular diseases.

Main Methods:

  • Literature review of studies on ECM dynamics and vascular remodeling.
  • Analysis of mechanisms involving ECM composition, degradation, and modification.
  • Identification of ECM-related biomarkers and therapeutic strategies.

Main Results:

  • ECM dynamics, including altered composition and degradation, are critical in vascular remodeling.
  • Metalloprotease activity and posttranslational modifications significantly impact ECM structure and function.
  • Dynamic changes in ECM topography also influence vascular remodeling processes.

Conclusions:

  • ECM dynamics are fundamental regulators of vascular remodeling across various conditions.
  • Targeting ECM components offers promising avenues for diagnostic and therapeutic interventions in vascular diseases.
  • Further research into ECM-mediated mechanisms can yield novel strategies for managing aging and vascular pathologies.