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Updated: Dec 15, 2025

An In Vitro Dormancy Model of Estrogen-sensitive Breast Cancer in the Bone Marrow: A Tool for Molecular Mechanism Studies and Hypothesis Generation
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An In Vitro Dormancy Model of Estrogen-sensitive Breast Cancer in the Bone Marrow: A Tool for Molecular Mechanism Studies and Hypothesis Generation

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Tumor dormancy in bone.

Vera Mayhew1,2, Tolu Omokehinde1,2, Rachelle W Johnson2,3

  • 1Graduate Program in Cancer Biology, Vanderbilt University, Nashville, TN, USA.

Cancer Reports (Hoboken, N.J.)
|July 8, 2020
PubMed
Summary
This summary is machine-generated.

Mechanisms of tumor dormancy in bone are poorly understood. This review explores how cancer cells remain dormant in bone and the factors influencing their reactivation, impacting recurrence risk.

Keywords:
angiogenesisbone marrowdormancyhypoxiaimmune surveillancemetastasis

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Area of Science:

  • Oncology
  • Cancer Biology
  • Bone Metastasis

Background:

  • Bone marrow is a frequent site for metastasis in breast, prostate, and lung cancers.
  • Despite improved survival rates, bone recurrence remains common in breast cancer survivors, often years after primary tumor treatment.
  • Tumor cells can disseminate early, leading to a high risk of recurrence in cancer survivors.

Purpose of the Study:

  • To review mechanisms of bone lesion development.
  • To discuss current theories on dormant cancer cell behavior in bone.
  • To explore factors involved in maintaining and exiting dormancy within the bone microenvironment.

Main Methods:

  • Literature review of mechanisms controlling tumor dormancy in bone.
  • Analysis of current theories on dormant cancer cell behavior.
  • Examination of bone microenvironment factors influencing dormancy.

Main Results:

  • Tumor dormancy in bone is poorly understood.
  • Dormant cancer cells reside in specific bone marrow niches.
  • Factors like angiogenesis, immune surveillance, and hypoxia are implicated in dormancy regulation.

Conclusions:

  • The bone microenvironment is complex, influencing tumor cell dormancy.
  • Angiogenesis, immune surveillance, and hypoxia play roles in regulating tumor cell entry and exit from dormancy.
  • Understanding these mechanisms is crucial for addressing metastatic recurrence in bone.