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Gene expression in human breast epithelial cells exposed to 60 Hz magnetic fields

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Authors not listed · 1999

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These results suggest that EMF is unlikely to influence breast cancer induction through a mechanism involving altered expression of these genes.

Plain English Summary

Summary written for general audiences

Researchers exposed HBL-100 cells and normal human mammary epithelial cells to 60 Hz EMF at flux densities of 0.1, 1.0, and 10.0 Gauss for periods ranging from 20 min to 24 h. Gene expression was quantitated using ribonuclease protection assays. EMF exposure had no statistically significant effect on basal levels of c-myc transcripts in either human breast cell model, and had no effect on alterations in c-myc expression induced by 12-O-tetradecanoylphorbol-13-acetate. Transcript levels of c-erbB-2, p53, p21, GADD45, bax, bcl-x, mcl-1, and c-fos were also unaffected by EMF exposure.

Why This Matters

Epidemiology suggests a possible relationship between exposure to power frequency magnetic fields (EMF) and breast cancer. One mechanism through which EMF could stimulate breast cancer induction is via altered expression of oncogenes and/or tumor suppressor genes that regulate normal and neoplastic growth. These results suggest that EMF is unlikely to influence breast cancer induction through a mechanism involving altered expression of these genes.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 60 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (1999). Gene expression in human breast epithelial cells exposed to 60 Hz magnetic fields.
Show BibTeX
@article{gene_expression_in_human_breast_epithelial_cells_exposed_to_60_hz_magnetic_fields_ce1558,
  author = {Unknown},
  title = {Gene expression in human breast epithelial cells exposed to 60 Hz magnetic fields},
  year = {1999},
  doi = {10.1093/CARCIN/20.8.1633},
  
}

Quick Questions About This Study

The study used HBL-100 cells and normal human mammary epithelial cells.
Cells were exposed to pure, linearly polarized 60 Hz EMF at flux densities of 0.1, 1.0, and 10.0 Gauss for periods ranging from 20 min to 24 h.
The researchers examined transcript levels of c-myc, c-erbB-2, p53, p21, GADD45, bax, bcl-x, mcl-1, and c-fos.
EMF exposure had no statistically significant effect on basal levels of c-myc transcripts and did not affect transcript levels of the other cancer-associated genes studied.
The results suggest that EMF is unlikely to influence breast cancer induction through a mechanism involving altered expression of these genes.