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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...
Regulation of Angiogenesis and Blood Supply01:24

Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...
Mechanism of Angiogenesis01:10

Mechanism of Angiogenesis

Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...
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...
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...
The Tumor Microenvironment02:17

The Tumor Microenvironment

Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...

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In Vivo Study of Human Endothelial-Pericyte Interaction Using the Matrix Gel Plug Assay in Mouse
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Published on: December 19, 2016

Endothelial cell-matrix interactions in neovascularization.

Megan E Francis1, Shiri Uriel, Eric M Brey

  • 1Pritzker Institute of Biomedical Science and Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA.

Tissue Engineering. Part B, Reviews
|May 6, 2008
PubMed
Summary
This summary is machine-generated.

Controlling new blood vessel formation (neovascularization) is key for regenerative medicine. Endothelial cell (EC)-matrix interactions, influenced by extracellular matrix (ECM) properties, are crucial for this process.

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Related Experiment Videos

Last Updated: Jul 5, 2026

In Vivo Study of Human Endothelial-Pericyte Interaction Using the Matrix Gel Plug Assay in Mouse
08:16

In Vivo Study of Human Endothelial-Pericyte Interaction Using the Matrix Gel Plug Assay in Mouse

Published on: December 19, 2016

Modified In Vivo Matrix Gel Plug Assay for Angiogenesis Studies
09:03

Modified In Vivo Matrix Gel Plug Assay for Angiogenesis Studies

Published on: June 30, 2023

Fibroblast-Derived 3D Matrix System Applicable to Endothelial Tube Formation Assay
07:21

Fibroblast-Derived 3D Matrix System Applicable to Endothelial Tube Formation Assay

Published on: December 26, 2019

Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Cell Biology

Background:

  • Neovascularization is essential for regenerative medicine therapies.
  • Endothelial cell (EC)-extracellular matrix (ECM) interactions regulate new blood vessel formation.
  • ECM properties critically influence these EC-matrix interactions.

Purpose of the Study:

  • To review the role of EC-matrix interactions in neovascularization.
  • To highlight differences between basement membrane and stromal matrices.
  • To guide the design of synthetic scaffolds for enhanced vascularization.

Main Methods:

  • Literature review focusing on EC-ECM interactions.
  • Analysis of ECM properties (chemical, physical, mechanical).
  • Examination of synthetic scaffold applications.

Main Results:

  • ECM properties significantly dictate EC behavior and neovascularization.
  • Basement membranes and stromal matrices exhibit distinct functional characteristics.
  • Current understanding of EC-ECM interactions in synthetic materials is limited.

Conclusions:

  • Further research into EC-ECM interactions is vital for advancing engineered tissues.
  • Optimizing scaffold design based on ECM knowledge can improve therapeutic outcomes.
  • Enhanced control over neovascularization holds promise for clinical applications.