Continuous exposure to 60 Hz extremely low frequency magnetic field at 10-14 mT promotes various human cell proliferation by activating extracellular-signal- regulated kinase

Plain English Summary

Summary written for general audiences

Researchers exposed various human and animal cells to 60 Hz magnetic fields at industrial-strength levels (10-16 mT) for 72 hours. They found that 14 mT exposure increased cell growth by at least 20% across all cell types tested, including cancer cells, through activation of specific cellular growth pathways. The study suggests that extremely strong magnetic fields can directly stimulate cell proliferation.

Why This Matters

This research reveals concerning evidence that high-intensity 60 Hz magnetic fields can accelerate cell growth, including cancer cells. While the 10-14 mT exposure levels used here are far higher than typical household exposures (which measure in microteslas), they're comparable to what workers face near industrial equipment, MRI machines, or high-voltage transmission lines. The fact that these fields activated growth pathways in cancer cells is particularly troubling, as it suggests a potential mechanism by which intense EMF exposure could promote tumor development. What makes this study significant is its identification of the specific cellular pathway (MEK-ERK) responsible for the proliferation effect. The researchers ruled out other common mechanisms like oxidative stress or calcium disruption, pointing to a direct electromagnetic influence on cellular signaling. This adds to growing evidence that EMF exposure can have biological effects independent of heating, challenging the industry position that non-thermal effects don't exist.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study

Unknown (2025). Continuous exposure to 60 Hz extremely low frequency magnetic field at 10-14 mT promotes various human cell proliferation by activating extracellular-signal- regulated kinase.

Show BibTeX

@article{continuous_exposure_to_60_hz_extremely_low_frequency_magnetic_field_at_10_14_mt_promotes_various_human_cell_proliferation_by_activating_extracellular_signal_regulated_kinase_ce3932,
  author = {Unknown},
  title = {Continuous exposure to 60 Hz extremely low frequency magnetic field at 10-14 mT promotes various human cell proliferation by activating extracellular-signal- regulated kinase},
  year = {2025},
  doi = {10.1016/j.bbrc.2025.151414},
  
}

DOI: 10.1016/j.bbrc.2025.151414 PubMed: 39903967

Quick Questions About This Study

Yes, this study found that 14 mT magnetic fields increased proliferation of human cervical cancer cells by approximately 20% or more after 72 hours of exposure, along with other cell types tested.

The study identified that 14 mT ELF magnetic fields activate the MEK-ERK cellular signaling pathway and NF-κB, which are key regulators of cell proliferation and survival, but not the Akt pathway.

No, researchers found that intracellular and mitochondrial ROS (reactive oxygen species) levels remained unchanged during 14 mT magnetic field exposure, indicating the proliferation effects don't involve oxidative stress mechanisms.

These are extremely strong fields, thousands of times higher than typical household exposures. They're comparable to industrial equipment, MRI environments, or very close proximity to high-voltage transmission lines.

No, the study found no changes in intracellular calcium levels during magnetic field exposure, and proliferation effects persisted even when calcium was chemically blocked, ruling out calcium-mediated mechanisms.