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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...
The Extracellular Matrix01:42

The Extracellular Matrix

Overview
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...
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...
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...
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...

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Related Experiment Video

Updated: May 31, 2026

Concentric Gel System to Study the Biophysical Role of Matrix Microenvironment on 3D Cell Migration
11:43

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Published on: April 3, 2015

Extracellular matrix in angiogenesis: dynamic structures with translational potential.

Sabine A Eming1, Jeffrey A Hubbell

  • 1Department of Dermatology, University of Cologne, Köln, Germany. sabine.eming@uni-koeln.de

Experimental Dermatology
|June 23, 2011
PubMed
Summary

Understanding vascular biology and angiogenesis is crucial for treating major diseases. This review explores how growth factors and the extracellular matrix (ECM) interact to control blood vessel formation for therapeutic potential.

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Last Updated: May 31, 2026

Concentric Gel System to Study the Biophysical Role of Matrix Microenvironment on 3D Cell Migration
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Published on: April 3, 2015

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2D and 3D Matrices to Study Linear Invadosome Formation and Activity
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Area of Science:

  • Vascular Biology
  • Cellular and Molecular Biology
  • Biomedical Science

Background:

  • The vascular network is vital for organ function, homeostasis, and immune responses.
  • Understanding vascular biology is critical for addressing major physiological and pathological processes.
  • Dysfunctional vascularization contributes to significant diseases like cardiovascular diseases, cancer, and chronic inflammatory disorders.

Purpose of the Study:

  • To review cellular and molecular mechanisms controlling angiogenesis.
  • To highlight the role of growth factor-extracellular matrix (ECM) interactions in vascular development.
  • To provide a rationale for targeting ECM-morphogen interplay for therapeutic angiogenesis.

Main Methods:

  • Review of recent reports and laboratory data on angiogenesis.
  • Focus on the interaction between growth factors and ECM components.
  • Analysis of vascular structure formation in health and disease.

Main Results:

  • Recent findings elucidate cellular and molecular pathways governing angiogenesis.
  • The interplay between growth factors and ECM is a key regulator of vascularization.
  • Understanding these interactions offers insights into disease pathogenesis.

Conclusions:

  • Targeting the ECM-morphogen interplay presents a promising strategy for therapeutic angiogenesis.
  • Further research into vascular biology can lead to novel treatments for angiogenesis-related disorders.
  • This review synthesizes current knowledge to guide future therapeutic development.