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A Static Magnetic Field Inhibits the Migration and Telomerase Function of Mouse Breast Cancer Cells

Zhu Fan1, Pingdong Hu2,3, Lekang Xiang1

  • 1School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China.

Biomed Research International
|May 29, 2020
PubMed

Insights

Static magnetic field (SMF) therapy may treat cancer by affecting cell proliferation and migration. SMF impacts telomere length and telomerase reverse transcriptase (TERT) expression, suggesting a potential therapeutic target.

Area of Science:

  • Oncology
  • Biophysics

Background:

  • Static magnetic fields (SMF) show potential for cancer therapy by inhibiting cancer cell proliferation.
  • Mechanisms of SMF action, especially on metastasis, require further investigation.

Purpose of the Study:

  • To evaluate the effects of moderate SMF (~150 mT) on 4T1 breast cancer cell proliferation and migration.
  • To elucidate the underlying molecular mechanisms of SMF's impact on cancer cells.

Main Methods:

  • Exposure of 4T1 breast cancer cells to ~150 mT SMF.
  • Assessment of cell proliferation and migration.
  • Analysis of telomere length, telomerase activity, and telomerase reverse transcriptase (TERT) expression.
  • Investigation of e2f1 expression levels.

Main Results:

  • SMF treatment accelerated 4T1 cell proliferation but inhibited cell migration.
  • SMF exposure shortened telomere length and decreased telomerase activity.
  • SMF inhibited telomerase reverse transcriptase (TERT) expression, potentially linked to e2f1 upregulation.
  • SMF repressed both cell migration and telomerase function.

Conclusions:

  • SMF affects cancer cell proliferation and migration, with implications for metastasis.
  • The telomerase network is responsive to SMF, indicating its role in SMF-mediated anti-cancer effects.
  • Telomerase may serve as a therapeutic target in magnetic field cancer therapy.

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