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Related Concept Videos

Integrins01:10

Integrins

5.9K
Animal and protozoan cells do not have cell walls to help maintain shape and provide structural stability. Instead, these eukaryotic cells secrete a sticky mass of carbohydrates and proteins into the spaces between adjacent cells. This network of proteins and molecules is called an extracellular matrix or ECM.
Some ECM proteins assemble into a basement membrane to which the remaining components adhere. Proteoglycans typically form the bulk of the ECM while fibrous proteins, like collagen,...
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Intracellular Signaling Affects Focal Adhesions01:17

Intracellular Signaling Affects Focal Adhesions

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Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
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Anchoring Junctions01:03

Anchoring Junctions

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Anchoring junctions are multiprotein complexes that help cells connect to other cells and the extracellular matrix. Anchoring junctions are present on the lateral and basal surfaces of cells, providing strong and flexible connections. Focal adhesions are often formed due to cell interactions with the ECM substrata, which initiate signal transduction via kinase cascades and other mechanisms. Together, they provide stability and tissue integrity. There are three types of anchoring junctions:...
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Adherens Junctions01:24

Adherens Junctions

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Strong contact points between adjacent cells anchor them to each other, forming tissues. Such anchoring junctions are of two types –  adherens junctions and desmosomes. Adherens junctions are abundant in tissues such as  epithelium and endothelium, forming a continuous zone of adhesion called the adhesion belt. In other tissues, such as  heart muscle, they appear as clusters, linking the cells to produce coordinated heart muscle contraction.
Adherens Junctions are Dynamic
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Activation of Integrins01:15

Activation of Integrins

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Integrins bind ligands and transmit information from outside the cell to inside or vice-versa through an "outside-in signaling" or "inside-out signaling."
In "outside-in signaling," external factors in the extracellular space bind to exposed ligand binding sites on integrins. This causes the inactive protein to undergo a conformational change to become active. Integrins are often clustered on the cell membrane. Repetitive and regularly spaced ligand binding...
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Overview of Cell-Matrix Interactions01:24

Overview of Cell-Matrix Interactions

9.6K
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: Mar 12, 2026

Static Adhesion Assay for the Study of Integrin Activation in T Lymphocytes
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Static Adhesion Assay for the Study of Integrin Activation in T Lymphocytes

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The integrin adhesome network at a glance.

Edward R Horton1, Jonathan D Humphries1, Jenny James1

  • 1Wellcome Trust Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PT, UK.

Journal of Cell Science
|November 2, 2016
PubMed
Summary

Integrin adhesion complexes (IACs) link cell structure and external matrices. This study integrates two adhesome datasets to map the IAC network, aiding future research on cell adhesion in health and disease.

Keywords:
AdhesionAdhesomeCytoskeletonIntegrinIntegrin adhesion complex

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Assay of Adhesion Under Shear Stress for the Study of T Lymphocyte-Adhesion Molecule Interactions
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Dynamic Adhesion Assay for the Functional Analysis of Anti-adhesion Therapies in Inflammatory Bowel Disease
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Assay of Adhesion Under Shear Stress for the Study of T Lymphocyte-Adhesion Molecule Interactions
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Area of Science:

  • Cell Biology
  • Biochemistry
  • Molecular Biology

Background:

  • The adhesion nexus connects cellular components with the extracellular matrix via integrin receptors.
  • Integrin adhesion complexes (IACs) are crucial for signal transduction and cellular functions.
  • Understanding IAC composition is key to deciphering cellular mechanics and responses.

Purpose of the Study:

  • To integrate the consensus adhesome and literature-curated adhesome.
  • To establish a comprehensive network of proteins within the integrin adhesion complex (IAC).
  • To provide a framework for investigating the adhesion nexus in various physiological and pathological conditions.

Main Methods:

  • Integration of the consensus adhesome (60 commonly identified proteins in IAC proteomes).
  • Inclusion of the literature-curated adhesome (theoretically assembled proteins localizing to IACs).
  • Analysis of protein localization and interactions within the adhesion nexus.

Main Results:

  • A consolidated IAC network was generated by combining two distinct adhesome datasets.
  • The network comprises four major signaling and actin-bridging axes.
  • This integrated network offers a more complete view of the adhesion nexus.

Conclusions:

  • The integrated IAC network serves as a valuable resource for studying the adhesion nexus.
  • This platform facilitates future research into the regulation and function of IACs.
  • Understanding these networks is critical for advancing knowledge in cell adhesion, health, and disease.