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Related Concept Videos

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...
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...
Overview of Cell-Cell Junctions01:14

Overview of Cell-Cell Junctions

The complex three-dimensional arrangement of cells in any multicellular organism is defined and maintained by interactions of cells with each other and the extracellular matrix. Cell-cell junctions are specialized structures where the multi-protein complexes on one cell interact with the multi-protein complexes on another  cell. These cell junctions are classified  into three main types based on their function — occluding, anchoring, and gap junctions.
Occluding or Tight Junctions
Tight...
Cell Adhesion Molecules - Types and Functions01:20

Cell Adhesion Molecules - Types and Functions

Cell adhesion molecules (CAMs) are pivotal to multicellularity and the coordinated functioning of tissues and organ systems. They enable physical interactions between cells and provide mechanical strength to tissues. They also function as receptors for signal transmission across the plasma membrane. The CAMs are broadly classified into four families - integrins, cadherins, selectins, and immunoglobulin-like CAMs (IgCAMs).
CAM Families
The Integrin family of proteins is primarily  involved in a...
Cell Adhesion Molecules - Types and Functions01:20

Cell Adhesion Molecules - Types and Functions

Cell adhesion molecules (CAMs) are pivotal to multicellularity and the coordinated functioning of tissues and organ systems. They enable physical interactions between cells and provide mechanical strength to tissues. They also function as receptors for signal transmission across the plasma membrane. The CAMs are broadly classified into four families - integrins, cadherins, selectins, and immunoglobulin-like CAMs (IgCAMs).
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Cell Adhesion in Plants01:14

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Plants have rigid cell walls that are made up of cell wall polysaccharides that mediate cell-cell adhesion. The primary cell walls of plants consist of two independent and interacting polysaccharide networks: a pectin matrix that embeds the second network comprising cellulose and hemicelluloses.
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Mammalian Cell Division in 3D Matrices via Quantitative Confocal Reflection Microscopy
10:22

Mammalian Cell Division in 3D Matrices via Quantitative Confocal Reflection Microscopy

Published on: November 29, 2017

Cell-matrix adhesions in 3D.

Jill S Harunaga1, Kenneth M Yamada

  • 1Laboratory of Cell and Developmental Biology, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, United States. jill.harunaga@nih.gov

Matrix Biology : Journal of the International Society for Matrix Biology
|July 5, 2011
PubMed
Summary
This summary is machine-generated.

Cells in 3D environments exhibit distinct behaviors, and their cell-matrix adhesions in 3D matrices are complex. This review synthesizes current research on 3D cell-matrix adhesions, highlighting consensus and areas needing further investigation.

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Area of Science:

  • Cell Biology
  • Biophysics
  • Biomaterials Science

Background:

  • Cells cultured in 3D extracellular matrices show different properties than those on 2D substrates.
  • Recent studies on 3D cell-matrix adhesions have yielded conflicting findings regarding their presence and composition.

Purpose of the Study:

  • To review and compile existing literature on 3D cell-matrix adhesions.
  • To identify consensus, divergent conclusions, and critical research gaps in the field.

Main Methods:

  • Literature review and comparative compilation of published studies on 3D cell-matrix adhesions.
  • Analysis of factors influencing adhesion composition, including matrix properties and cytoskeletal components.

Main Results:

  • General consensus exists on discrete cell-matrix adhesions in 3D, with exceptions in amoeboid migration.
  • Technical challenges in 3D imaging can affect visualization and cell migration modes.
  • Matrix stiffness and topography influence adhesion composition, with variability in force-dependent components like vinculin.

Conclusions:

  • Understanding 3D cell-matrix adhesions requires addressing technical imaging issues and matrix property influences.
  • Further research is needed to clarify the regulation and function of these adhesions in complex 3D environments.