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Related Concept Videos

An In Vitro System to Study Tumor Dormancy and the Switch to Metastatic Growth09:14

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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...
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Related Experiment Video

Updated: Jan 20, 2026

An In Vitro System to Study Tumor Dormancy and the Switch to Metastatic Growth
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Tumor Dormancy and Interplay with Hypoxic Tumor Microenvironment.

Elena Butturini1, Alessandra Carcereri de Prati2, Diana Boriero3

  • 1Department of Neuroscience, Biomedicine and Movement Sciences, Section of Biological Chemistry, University of Verona, 37134 Verona, Italy. elena.butturini@univr.it.

International Journal of Molecular Sciences
|September 6, 2019
PubMed
Summary
This summary is machine-generated.

Tumor dormancy, a state of cell cycle arrest, allows cancer cells to survive in hypoxic conditions and evade chemotherapy. Understanding dormancy mechanisms is key to developing new cancer treatments.

Keywords:
dormancyhypoxiatumor microenvironment

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Area of Science:

  • Oncology
  • Cancer Biology
  • Tumor Microenvironment Research

Background:

  • The tumor microenvironment significantly influences cancer progression, resistance, immune evasion, and metastasis.
  • Tumor hypoxia, arising from rapid cell proliferation and abnormal vasculature, creates conditions where some cancer cells enter a dormant state.
  • Dormant tumor cells exhibit G0/G1 cell cycle arrest and low metabolism, rendering them resistant to conventional chemotherapy and capable of future metastasis.

Purpose of the Study:

  • To review the current understanding of the mechanisms regulating tumor dormancy.
  • To elucidate the critical role of the hypoxic microenvironment in establishing and maintaining tumor dormancy.
  • To highlight the importance of targeting dormant tumor cells for improved cancer therapy.

Main Methods:

  • Literature review of existing research on tumor dormancy and the tumor microenvironment.
  • Analysis of studies investigating cellular adaptations to hypoxia within tumors.
  • Synthesis of knowledge regarding the molecular regulation of dormant cancer cells.

Main Results:

  • Hypoxia is a primary driver of tumor dormancy, promoting cell cycle arrest and metabolic suppression.
  • Dormant cells possess the inherent ability to reactivate proliferation when favorable conditions arise.
  • These dormant cells are a significant source of cancer recurrence and metastasis.

Conclusions:

  • Understanding the regulatory machinery of tumor dormancy is crucial for identifying early cancer biomarkers.
  • Targeting dormant tumor cell populations offers a promising strategy for novel therapeutic development.
  • The hypoxic tumor microenvironment is a central factor in the biology of tumor dormancy.