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Related Concept Videos

The Extracellular Matrix01:42

The Extracellular Matrix

Overview
The Extracellular Matrix01:29

The Extracellular Matrix

Overview
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...
Matrix Proteoglycans and Glycoproteins01:21

Matrix Proteoglycans and Glycoproteins

Proteoglycans are extensively glycosylated proteins, commonly found in the extracellular matrix, interwoven with collagen fibers. Hyaline cartilage, the most common type of cartilage in the body, consists of short and dispersed collagen fibers associated with large amounts of proteoglycans. These proteoglycans have long negative charges that attract cations, which in turn attract water molecules. This influx of ions and water molecules swells up the proteoglycan like a water-soaked gel that can...
Extracellular Matrix01:26

Extracellular Matrix

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...
Proteomics01:33

Proteomics

A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...
Overview of Cell-Matrix Interactions01:24

Overview of Cell-Matrix Interactions

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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Related Experiment Video

Updated: May 14, 2026

Enrichment of Extracellular Matrix Proteins from Tissues and Digestion into Peptides for Mass Spectrometry Analysis
07:28

Enrichment of Extracellular Matrix Proteins from Tissues and Digestion into Peptides for Mass Spectrometry Analysis

Published on: July 23, 2015

Defining the extracellular matrix using proteomics.

Adam Byron1, Jonathan D Humphries, Martin J Humphries

  • 1Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Manchester, UK.

International Journal of Experimental Pathology
|February 20, 2013
PubMed
Summary
This summary is machine-generated.

The extracellular matrix (ECM) is crucial for cell behavior and health. Advances in proteomic analysis are improving our understanding of ECM composition, function, and its role in diseases.

Keywords:
cell adhesionextracellular matrixmass spectrometryproteomics

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A Rapid, Scalable Method for the Isolation, Functional Study, and Analysis of Cell-derived Extracellular Matrix
09:40

A Rapid, Scalable Method for the Isolation, Functional Study, and Analysis of Cell-derived Extracellular Matrix

Published on: January 4, 2017

Glycoproteomics of the Extracellular Matrix: A Method for Intact Glycopeptide Analysis Using Mass Spectrometry
14:02

Glycoproteomics of the Extracellular Matrix: A Method for Intact Glycopeptide Analysis Using Mass Spectrometry

Published on: April 21, 2017

Related Experiment Videos

Last Updated: May 14, 2026

Enrichment of Extracellular Matrix Proteins from Tissues and Digestion into Peptides for Mass Spectrometry Analysis
07:28

Enrichment of Extracellular Matrix Proteins from Tissues and Digestion into Peptides for Mass Spectrometry Analysis

Published on: July 23, 2015

A Rapid, Scalable Method for the Isolation, Functional Study, and Analysis of Cell-derived Extracellular Matrix
09:40

A Rapid, Scalable Method for the Isolation, Functional Study, and Analysis of Cell-derived Extracellular Matrix

Published on: January 4, 2017

Glycoproteomics of the Extracellular Matrix: A Method for Intact Glycopeptide Analysis Using Mass Spectrometry
14:02

Glycoproteomics of the Extracellular Matrix: A Method for Intact Glycopeptide Analysis Using Mass Spectrometry

Published on: April 21, 2017

Area of Science:

  • Cell Biology
  • Biochemistry
  • Proteomics

Background:

  • The cell microenvironment, particularly the extracellular matrix (ECM), significantly influences cell behavior, growth, and survival.
  • The ECM provides structural support and coordinates signaling processes through ligand and receptor binding.
  • Cellular sensing of ECM's chemical, mechanical, and topographical features dictates responses to the microenvironment.

Purpose of the Study:

  • To review advancements in proteomic approaches for studying the ECM.
  • To address challenges in analyzing ECM proteins using proteomic strategies.
  • To discuss the implications of ECM composition and function in health and disease.

Main Methods:

  • Review of recent proteomic studies focused on ECM analysis.
  • Survey of methodologies addressing analytical difficulties in ECM protein characterization.
  • Synthesis of findings related to ECM structure, function, and disease mechanisms.

Main Results:

  • Proteomic methodologies are crucial for global analysis of cellular systems, including the ECM.
  • Specific challenges exist in analyzing extracellular and transmembrane proteins due to their biochemical properties.
  • Characterization of ECM composition reveals insights into its structure, function, and pathological roles.

Conclusions:

  • Understanding the ECM is vital for comprehending cellular processes and disease pathogenesis.
  • Proteomic advancements are essential for overcoming analytical hurdles in ECM research.
  • Progress towards a systems-level understanding of ECM biology is key for future health and disease insights.