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Related Concept Videos

The Extracellular Matrix01:42

The Extracellular Matrix

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 MatrixThe extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse molecules.
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...
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...
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...
Cell-matrix's Response to Mechanical Forces01:13

Cell-matrix's Response to Mechanical Forces

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...
Protein Complex Assembly02:41

Protein Complex Assembly

Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...

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Fabrication and Characterization of Colorectal Cancer Organoids from SW1222 Cell Line in Ultrashort Self&#45;Assembling Peptide Matrix
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Multi-component extracellular matrices based on peptide self-assembly.

Joel H Collier1, Jai S Rudra, Joshua Z Gasiorowski

  • 1Department of Surgery, University of Chicago, 5841 S. Maryland Ave., MC 5032, Chicago, IL 60637, USA. collier@uchicago.edu

Chemical Society Reviews
|July 7, 2010
PubMed
Summary
This summary is machine-generated.

Designing synthetic extracellular matrices (ECMs) is crucial for regenerative medicine. Molecular self-assembly offers a promising strategy for creating defined, multi-component synthetic ECMs inspired by native biological structures.

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Molecular Self-Assembly

Background:

  • Extracellular matrices (ECMs) are complex biological scaffolds vital for tissue function.
  • Native ECMs are challenging to replicate due to their multi-component nature, dynamic composition, and variable tissue-specific roles.
  • Understanding native ECMs is difficult in physiological settings.

Purpose of the Study:

  • To review strategies for designing synthetic extracellular matrices (ECMs).
  • To explore the application of molecular self-assembly in creating defined, multi-component synthetic ECMs.
  • To compare synthetic ECM approaches with native ECM structures and functions.

Main Methods:

  • Review of molecular self-assembly strategies for biomaterials synthesis.
  • Comparative analysis of synthetic matrix properties against native ECM characteristics.
  • Discussion of mechanistic challenges in studying ECMs in vivo.

Main Results:

  • Molecular self-assembly presents a viable approach for constructing synthetic ECMs with high compositional definition.
  • Synthetic ECMs can mimic aspects of native ECMs, supporting applications in regenerative medicine and 3D cell culture.
  • The review highlights the potential of self-assembly for creating functional, biomimetic matrices.

Conclusions:

  • Molecular self-assembly is a key strategy for advancing synthetic ECM design.
  • Defined, multi-component synthetic ECMs are essential for regenerative medicine and advanced cell culture.
  • Further research into biomimetic materials can bridge the gap between synthetic constructs and native biological functions.