Necroptosis triggered by ROS accumulation and Ca overload, partly explains the inflammatory responses and anti-cancer effects associated with 1Hz, 100 mT ELF-MF in vivo.
This animal and in vitro study examined ELF magnetic field exposure in a mouse breast tumor model and a breast cancer cell line. The authors report tumor growth suppression and reduced expression of Ki-67, CD31, VEGFR2, and MMP-9 after exposure. They also report increased IFN-γ and TNF-α and increased tumor-infiltrating lymphocytes, with molecular markers suggesting induction of necroptosis and apoptosis, partly linked to ROS accumulation and intracellular calcium overload.
Key points
- In vivo, BALB/c mice with established MC-4L2 tumors were exposed to 1 Hz, 100 mT ELF-MF for 2 h/day over 28 days.
- The authors report suppressed tumor growth and decreased Ki-67, CD31, VEGFR2, and MMP-9 expression after exposure.
- Peripheral blood cytokines IFN-γ and TNF-α were reported to increase following exposure.
- The study reports increased tumor-infiltrating lymphocytes, particularly CD8 T cells, in exposed animals.
- In vitro, ELF-EMF exposure was associated with increased phosphorylation of RIPK1/RIPK3/MLKL and cleavage of caspase-9/caspase-3.
- Pharmacologic modulation (verapamil, N-acetyl cysteine, calcium chloride) is reported to support roles for intracellular calcium and ROS in ELF-EMF–associated necroptosis.
- Both necroptosis and apoptosis are described as occurring in exposed MC-4L2 cells.
Referenced studies & papers
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AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
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