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Related Concept Videos

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,...
Cancer Cell Migration through Invadopodia01:35

Cancer Cell Migration through Invadopodia

Invadosome is a broad category of cell surface structures with proteolytic activity that  degrades the extracellular matrix (ECM). Invadosomes are present in normal cell types, including macrophages, endothelial cells, and neurons, as well as tumor cells. Although the macrophage podosomes and tumor cell invadopodia are classified as invadosomes, they have different structures, molecular pathways, and functions. Podosomes are short structures that last for a few minutes. However, invadopodia can...
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...
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...
Metastasis02:30

Metastasis

Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
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...

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Related Experiment Video

Updated: May 9, 2026

Assessing Tumor Microenvironment of Metastasis Doorway-Mediated Vascular Permeability Associated with Cancer Cell Dissemination using Intravital Imaging and Fixed Tissue Analysis
09:42

Assessing Tumor Microenvironment of Metastasis Doorway-Mediated Vascular Permeability Associated with Cancer Cell Dissemination using Intravital Imaging and Fixed Tissue Analysis

Published on: June 26, 2019

Vascular remodeling in cancer.

R H Farnsworth1, M Lackmann1, M G Achen2

  • 1Protein Interaction and Cancer Research Laboratory, Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.

Oncogene
|August 6, 2013
PubMed
Summary

Tumor blood vessels remodel to support cancer growth and metastasis. Understanding these vascular changes and molecular markers aids in early cancer detection and prognosis.

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Assessing Tumor Microenvironment of Metastasis Doorway-Mediated Vascular Permeability Associated with Cancer Cell Dissemination using Intravital Imaging and Fixed Tissue Analysis
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A Matrigel-Based Tube Formation Assay to Assess the Vasculogenic Activity of Tumor Cells

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Area of Science:

  • Oncology
  • Vascular Biology
  • Cancer Research

Background:

  • Tumor growth and metastasis depend on a remodeled vascular network.
  • Tumor angiogenesis, the generation of new blood vessels, is crucial but not fully understood.
  • Resistance to antiangiogenic therapies highlights the complexity of tumor vascular signaling.

Purpose of the Study:

  • To review current knowledge on tumor blood vessel remodeling.
  • To explore the cellular and molecular events driving vascular changes in cancer.
  • To discuss the implications of vascular alterations for cancer progression and detection.

Main Methods:

  • Literature review focusing on blood vasculature in cancer.
  • Analysis of cellular and molecular mechanisms of tumor vessel remodeling.
  • Examination of the role of vascular changes in metastasis and early cancer detection.

Main Results:

  • Tumor vascular remodeling supports cancer survival, expansion, and metastasis.
  • Alterations in pre-existing vessels can precede metastasis.
  • Molecular markers associated with vascular changes may predict tumor behavior.

Conclusions:

  • Understanding tumor vascular remodeling is key to improving cancer treatment and diagnosis.
  • Targeting vascular alterations offers potential for novel cancer therapies.
  • Identifying molecular markers of vascular changes can enhance early cancer detection and prognosis.