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Adaptive Mechanisms in Cancer Cells02:53

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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.
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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.
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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...
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Related Experiment Video

Updated: May 5, 2026

In Vivo Model for Testing Effect of Hypoxia on Tumor Metastasis
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Hypoxia-mediated metastasis.

Joan Chang1, Janine Erler

  • 1Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Ole Maaløes Vej 5, DK-2200, Copenhagen N, Denmark, joan.chang@bric.ku.dk.

Advances in Experimental Medicine and Biology
|November 26, 2013
PubMed
Summary

Hypoxia, or low oxygen, fuels cancer metastasis by regulating each step of the deadly process. Targeting hypoxia-inducible factor 1 may prevent cancer spread.

Area of Science:

  • Oncology
  • Cancer Biology
  • Tumor Microenvironment

Background:

  • Metastasis causes over 90% of cancer deaths, involving complex interactions between cancer cells and the host.
  • Hypoxia (low oxygen) is common in solid tumors, correlating with poor prognosis and increased metastasis.
  • Pre-metastatic niche formation prepares distant sites for cancer cell colonization.

Purpose of the Study:

  • To elucidate the role of hypoxia in regulating each stage of the metastatic cascade.
  • To explore therapeutic strategies targeting hypoxia-driven metastasis.

Main Methods:

  • Review of current literature on hypoxia and cancer metastasis.
  • Analysis of hypoxia-inducible factor 1 (HIF-1) and its downstream effectors in metastasis.

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Related Experiment Videos

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Main Results:

  • Hypoxia promotes key metastatic steps: invasion, survival in circulation, and colonization.
  • Hypoxia stimulates angiogenesis and cancer cell survival.
  • Targeting hypoxia-inducible factor 1 (HIF-1) and lysyl oxidase family shows promise.

Conclusions:

  • Hypoxia is a critical regulator of cancer metastasis at multiple stages.
  • Therapeutic strategies targeting hypoxia pathways, such as HIF-1, offer potential for metastasis prevention.