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Related Concept Videos

Integrins01:10

Integrins

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,...
Activation of Integrins01:15

Activation of Integrins

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 events provide an effective stimulus.
Intracellular Signaling Affects Focal Adhesions01:17

Intracellular Signaling Affects Focal Adhesions

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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Related Experiment Video

Updated: Jun 22, 2026

Human T Lymphocyte Isolation, Culture and Analysis of Migration In Vitro
08:39

Human T Lymphocyte Isolation, Culture and Analysis of Migration In Vitro

Published on: June 2, 2010

Methods to study lymphatic vessel integrins.

Barbara Garmy-Susini1, Milan Makale, Mark Fuster

  • 1Moores UCSD Cancer Center, University of California, San Diego, La Jolla, California, USA.

Methods in Enzymology
|August 19, 2007
PubMed
Summary
This summary is machine-generated.

Integrins regulate lymphangiogenesis, the growth of new lymphatic vessels, which promotes tumor metastasis. Targeting integrins can block this process, offering a potential therapeutic strategy for cancer.

More Related Videos

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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Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting
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Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting

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Related Experiment Videos

Last Updated: Jun 22, 2026

Human T Lymphocyte Isolation, Culture and Analysis of Migration In Vitro
08:39

Human T Lymphocyte Isolation, Culture and Analysis of Migration In Vitro

Published on: June 2, 2010

Static Adhesion Assay for the Study of Integrin Activation in T Lymphocytes
09:14

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

Published on: June 13, 2014

Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting
07:36

Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting

Published on: May 1, 2015

Area of Science:

  • Vascular Biology
  • Cancer Biology
  • Immunology

Background:

  • The lymphatic system is crucial for fluid balance, immune cell transport, and tumor metastasis.
  • Tumors promote lymphangiogenesis, the formation of new lymphatic vessels, which aids cancer spread.
  • Integrins are key regulators of lymphatic endothelial cell behavior and lymphangiogenesis.

Purpose of the Study:

  • To outline methods for studying integrin function in lymphangiogenesis.
  • To provide protocols for isolating and culturing lymphatic endothelial cells.
  • To demonstrate techniques for assessing integrin-mediated processes in vitro and in vivo.

Main Methods:

  • Isolation and culture of murine and human lymphatic endothelial cells.
  • Analysis of integrin expression on lymphatic endothelial cells.
  • In vitro assays for cell adhesion, migration, and tube formation.
  • In vivo studies using animal models and intravital microscopy.

Main Results:

  • Integrins were identified as critical mediators of lymphangiogenesis.
  • Specific integrins were shown to promote lymphatic vessel growth.
  • Inhibiting or losing integrin expression blocked lymphangiogenesis.
  • Established methods for studying integrin function in lymphatic development and disease.

Conclusions:

  • Integrins play a significant role in regulating tumor lymphangiogenesis and metastasis.
  • Targeting integrins presents a potential therapeutic approach to inhibit cancer spread.
  • The described methods facilitate further research into integrin-driven lymphangiogenesis.