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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...
Regulation of Hematopoietic Stem Cells01:01

Regulation of Hematopoietic Stem Cells

All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
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...
Adaptive Mechanisms in Cancer Cells02:53

Adaptive Mechanisms in Cancer Cells

Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Cells of the Innate Immune Response01:28

Cells of the Innate Immune Response

The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
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Related Experiment Video

Updated: Jun 22, 2026

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

Immune cells and angiogenesis.

Domenico Ribatti1, Enrico Crivellato

  • 1Department of Human Anatomy and Histology, University of Bari Medical School, Bari, Italy. ribatti@anatomia.uniba.it

Journal of Cellular and Molecular Medicine
|June 23, 2009
PubMed
Summary
This summary is machine-generated.

Immune cells drive tissue vascularization by releasing pro-angiogenic factors, influencing inflammation and tumor growth. Their anti-angiogenic potential offers therapeutic strategies for cancer and inflammatory diseases.

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Published on: October 14, 2015

Area of Science:

  • Immunology
  • Angiogenesis research
  • Cell biology

Background:

  • Immune cells play a crucial role in regulating endothelial cell functions.
  • Pro-angiogenic mediators released by immune cells promote tissue vascularization.
  • Angiogenesis is a complex process involving a balance of regulatory factors.

Purpose of the Study:

  • To review the role of immune cells in angiogenesis during inflammation and tumor growth.
  • To explore the anti-angiogenic properties of immune cells for therapeutic applications.

Main Methods:

  • Literature review focusing on immune cell involvement in angiogenesis.
  • Analysis of pro- and anti-angiogenic mediators produced by immune cells.
  • Examination of the role of the immune microenvironment in vascularization.

Main Results:

  • Both innate and adaptive immune cells contribute to endothelial cell proliferation, migration, and activation.
  • Immune cells release a wide array of pro-angiogenic factors, fostering tissue vascularization.
  • Immune cells also possess anti-angiogenic properties with potential pharmacological value.

Conclusions:

  • Immune cells are key players in the angiogenic process in both inflammation and cancer.
  • Understanding the dual role of immune cells in angiogenesis can lead to novel therapeutic strategies.
  • Targeting immune cell-derived mediators may offer new avenues for anti-angiogenic therapies.