6,486 Studies Reviewed. 85.2% of Original Studies Found Biological Effects. The Evidence is Clear.

Exposure of mcf-7 breast cancer cells to electromagnetic fields up-regulates the plasminogen activator system

Bioeffects Seen

Authors not listed · 2009

Share:

Exposure of MCF-7 breast cancer cells to 50-Hz EMF at 1.2 microT markedly increased urokinase plasminogen activator and plasminogen-activator inhibitor-1 gene expression.

Plain English Summary

Summary written for general audiences

Researchers exposed MCF-7 breast cancer cells from two sources to homogeneous 50-Hz electromagnetic fields at 1.2 microT. Gene expression was measured using reverse transcriptase-polymerase chain reaction. Exposure markedly increased urokinase plasminogen activator and plasminogen-activator inhibitor-1 expression, marginally increased the urokinase receptor in one cell line, and slightly decreased tissue plasminogen activator expression. The authors suggest that EMFs may increase the metastatic potential of breast tumors.

Why This Matters

The authors note that their newly established exposure system may allow study of signaling processes involved in metastatic phenotype induction. They also mention that epidemiological studies have proposed effects of EMFs on breast cancer incidence.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 50 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 50 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2009). Exposure of mcf-7 breast cancer cells to electromagnetic fields up-regulates the plasminogen activator system.
Show BibTeX
@article{exposure_of_mcf_7_breast_cancer_cells_to_electromagnetic_fields_up_regulates_the_plasminogen_activator_system_ce1401,
  author = {Unknown},
  title = {Exposure of mcf-7 breast cancer cells to electromagnetic fields up-regulates the plasminogen activator system},
  year = {2009},
  doi = {10.1111/IGC.0b013e31819f53ec},
  
}

Quick Questions About This Study

The study used MCF-7 breast cancer cells from two different sources.
Cells were exposed to highly homogeneous 50-Hz EMFs at 1.2 microT.
Urokinase plasminogen activator and plasminogen-activator inhibitor-1 expression increased markedly, the urokinase receptor increased marginally in one cell line, and tissue plasminogen activator expression decreased slightly.
The authors suggest that EMFs may increase the metastatic potential of breast tumors.
Gene expression was analyzed by reverse transcriptase-polymerase chain reaction.