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...
Overview of the Vascular System01:20

Overview of the Vascular System

The vascular system comprises an extensive network of arteries, capillaries, and veins. The vascular system can be broadly divided into the blood and lymphatic systems. Typically, blood vessels can be categorized into three histological regions: tunica intima, tunica media, and tunica adventitia. The tunica intima consists of a single layer of endothelial cells attached to the basal lamina. Underlying the basal lamina is a connective tissue layer and an elastic lamina that gives stability and...
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...
Overview of Cell-Cell Junctions01:14

Overview of Cell-Cell Junctions

The complex three-dimensional arrangement of cells in any multicellular organism is defined and maintained by interactions of cells with each other and the extracellular matrix. Cell-cell junctions are specialized structures where the multi-protein complexes on one cell interact with the multi-protein complexes on another  cell. These cell junctions are classified  into three main types based on their function — occluding, anchoring, and gap junctions.
Occluding or Tight Junctions
Tight...
Overview of Cell-Cell Junctions01:14

Overview of Cell-Cell Junctions

The complex three-dimensional arrangement of cells in any multicellular organism is defined and maintained by interactions of cells with each other and the extracellular matrix. Cell-cell junctions are specialized structures where the multi-protein complexes on one cell interact with the multi-protein complexes on another  cell. These cell junctions are classified  into three main types based on their function — occluding, anchoring, and gap junctions.
Occluding or Tight Junctions
Tight...
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

Soluble Notch agonist enables human ameloblast maturation and enamel-like tissue formation for tooth regeneration.

International journal of oral science·2026
Same author

A microCT-based platform to quantify drug targeting.

European radiology experimental·2023
Same author

Reconstruction of transmission chains of SARS-CoV-2 amidst multiple outbreaks in a geriatric acute-care hospital: a combined retrospective epidemiological and genomic study.

eLife·2022
Same author

ExlA: A New Contributor to <i>Pseudomonas aeruginosa</i> Virulence.

Frontiers in cellular and infection microbiology·2022
Same author

ExlA Pore-Forming Toxin: Localization at the Bacterial Membrane, Regulation of Secretion by Cyclic-Di-GMP, and Detection In Vivo.

Toxins·2021
Same author

The bacterial toxin ExoU requires a host trafficking chaperone for transportation and to induce necrosis.

Nature communications·2021

Related Experiment Video

Updated: Jun 22, 2026

Micropatterning and Assembly of 3D Microvessels
13:05

Micropatterning and Assembly of 3D Microvessels

Published on: September 9, 2016

[Endothelial cell-cell junctions in vessel formation].

Philippe Huber1

  • 1Laboratoire de Physiopathologies Vasculaires, Unité CEA - Inserm - Université Joseph Fourier, CEA-Grenoble iRTSV-LAPV-U882, 17 rue des Martyrs, 38054 Grenoble.

Journal De La Societe De Biologie
|June 17, 2009
PubMed
Summary
This summary is machine-generated.

The endothelium, a single layer of cells lining blood vessels, uses cell-adhesion proteins to control permeability and leukocyte movement. These proteins may also drive pathological angiogenesis by activating cell protrusions.

More Related Videos

Isolation and Culture Expansion of Tumor-specific Endothelial Cells
10:15

Isolation and Culture Expansion of Tumor-specific Endothelial Cells

Published on: October 14, 2015

Endothelial Cell Tube Formation Assay for the In Vitro Study of Angiogenesis
08:12

Endothelial Cell Tube Formation Assay for the In Vitro Study of Angiogenesis

Published on: September 1, 2014

Related Experiment Videos

Last Updated: Jun 22, 2026

Micropatterning and Assembly of 3D Microvessels
13:05

Micropatterning and Assembly of 3D Microvessels

Published on: September 9, 2016

Isolation and Culture Expansion of Tumor-specific Endothelial Cells
10:15

Isolation and Culture Expansion of Tumor-specific Endothelial Cells

Published on: October 14, 2015

Endothelial Cell Tube Formation Assay for the In Vitro Study of Angiogenesis
08:12

Endothelial Cell Tube Formation Assay for the In Vitro Study of Angiogenesis

Published on: September 1, 2014

Area of Science:

  • Endothelial cell biology
  • Vascular cell adhesion

Context:

  • The endothelium forms a critical barrier within all vessel types.
  • Endothelial cell-cell contacts are mediated by transmembrane adhesive proteins.
  • These proteins are crucial for vascular homeostasis and leukocyte trafficking.

Purpose:

  • To elucidate the role of endothelial cell-cell junction proteins.
  • To investigate their involvement in vascular permeability and leukocyte transmigration.
  • To explore their potential function in pathological angiogenesis.

Summary:

  • Endothelial cells form a cobblestone monolayer with cell-cell contacts mediated by adhesive proteins.
  • These proteins regulate vascular permeability, leukocyte transmigration, and may activate cell protrusions.
  • Such activities are implicated in pathological angiogenesis and anti-angiogenic therapy targets.

Impact:

  • Highlights the dual role of endothelial junction proteins in normal physiology and disease.
  • Identifies potential therapeutic targets for anti-angiogenic strategies.
  • Advances understanding of vascular invasion mechanisms in pathological conditions.