Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

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...
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...
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,...
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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Tumour endothelial cell reprogramming orchestrates angiocrine signalling to drive chemoresistance in breast cancer.

Angiogenesis·2026
Same author

Exploring the interaction between metabolic dysfunction and alcohol-associated hepatitis: A global study.

Hepatology (Baltimore, Md.)·2026
Same author

Fault-mediated magma propagation and triggered seismicity revealed by the 2022 São Jorge Azores unrest.

Nature communications·2026
Same author

Fecal microbiota transplantation-could stool donors' and receptors' diet be the key to future success?

Frontiers in gastroenterology (Lausanne, Switzerland)·2026
Same author

Advancing lung cancer therapy - leveraging cell biology to improve immunotherapy and anti-angiogenic strategies.

Journal of cell science·2026
Same author

The Dr. House Effect: Experts' Impoliteness Influences Persuasion.

PsyCh journal·2026

Related Experiment Video

Updated: Jul 3, 2026

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

Integrins: the keys to unlocking angiogenesis.

Rita Silva1, Gabriela D'Amico, Kairbaan M Hodivala-Dilke

  • 1Adhesion and Angiogenesis Group, Centre for Tumour Biology, Cancer Research UK Clinical Centre, Institute of Cancer, Barts &The London & Queen Mary's School of Medicine & Dentistry, John Vane Science Centre, Charterhouse Square, London UK.

Arteriosclerosis, Thrombosis, and Vascular Biology
|July 29, 2008
PubMed
Summary

Integrins on endothelial and mural cells are crucial for new blood vessel formation (angiogenesis). Targeting these integrins offers a promising strategy for antiangiogenic therapy in diseases like cancer and ischemic conditions.

More Related Videos

Monitoring Functionality and Morphology of Vasculature Recruited by Factors Secreted by Fast-growing Tumor-generating Cells
09:03

Monitoring Functionality and Morphology of Vasculature Recruited by Factors Secreted by Fast-growing Tumor-generating Cells

Published on: November 23, 2014

In Vitro Model of Coronary Angiogenesis
08:03

In Vitro Model of Coronary Angiogenesis

Published on: March 10, 2020

Related Experiment Videos

Last Updated: Jul 3, 2026

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

Monitoring Functionality and Morphology of Vasculature Recruited by Factors Secreted by Fast-growing Tumor-generating Cells
09:03

Monitoring Functionality and Morphology of Vasculature Recruited by Factors Secreted by Fast-growing Tumor-generating Cells

Published on: November 23, 2014

In Vitro Model of Coronary Angiogenesis
08:03

In Vitro Model of Coronary Angiogenesis

Published on: March 10, 2020

Area of Science:

  • Vascular biology
  • Cell adhesion
  • Integrin signaling

Background:

  • Angiogenesis is vital for development and disease pathogenesis, including cancer and ischemic diseases.
  • Endothelial cells and pericytes are key players in blood vessel formation.
  • Integrins mediate cell-cell and cell-extracellular matrix interactions.

Purpose of the Study:

  • To review the role of endothelial and mural cell integrins in angiogenesis.
  • To highlight integrins as potential therapeutic targets for antiangiogenic therapy.

Main Methods:

  • Literature review of studies on integrins in angiogenesis.
  • Analysis of the function of specific integrins in endothelial and mural cells.
  • Evaluation of integrin-targeted antiangiogenic strategies.

Main Results:

  • Endothelial and mural cell integrins play critical roles in regulating angiogenesis.
  • Specific integrins are differentially expressed and function during neovascularization.
  • Targeting these integrins can inhibit pathological angiogenesis.

Conclusions:

  • Integrins are essential regulators of angiogenesis.
  • Targeting endothelial and mural cell integrins represents a viable therapeutic approach for antiangiogenic strategies.
  • Further research into specific integrin functions can refine antiangiogenic therapies.