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Cancer & Tumors

Effects of 2450 MHz electromagnetic fields with a wide range of SARs on methylcholanthrene-induced transformation in C3H10T1/2 cells.

No Effects Found

Wang J, Sakurai T, Koyama S, Komatubara Y, Suzuki Y, Taki M, Miyakoshi J. · 2005

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Microwave radiation may accelerate cancer development when combined with other carcinogens, even if it doesn't cause cancer alone.

Plain English Summary

Summary written for general audiences

Researchers exposed mouse cells to 2450 MHz microwave radiation (the same frequency used in microwave ovens and WiFi) at extremely high power levels to test whether it could cause cancer-like changes. The radiation alone didn't cause cancer transformation, but when combined with a known cancer-causing chemical, very high radiation levels (100+ W/kg) increased the rate of malignant transformation beyond what the chemical alone produced.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 2.45 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 2.45 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 2450 MHz Duration: 2 hours

Study Details

This study examined whether 2450 MHz continuous wave high frequency electromagnetic fields (HFEMF) could induce cancer-like changes in mouse C3H10T1/2 cells, and whether HFEMF could initiate malignant or synergistic transformation.

Transformed foci, Type II and Type III, were independently counted as the experiment endpoint. The c...

No significant differences were observed in the malignant transformation (Type II + Type III) freque...

This result suggests that 2450 MHz HFEMF could not contribute to the initiation stage of tumor formation, but it may contribute to the promotion stage at the extremely high SAR (100 W/kg).

Cite This Study
Wang J, Sakurai T, Koyama S, Komatubara Y, Suzuki Y, Taki M, Miyakoshi J. (2005). Effects of 2450 MHz electromagnetic fields with a wide range of SARs on methylcholanthrene-induced transformation in C3H10T1/2 cells. J Radiat Res (Tokyo). 46(3):351-361, 2005.
Show BibTeX
@article{j_2005_effects_of_2450_mhz_3485,
  author = {Wang J and Sakurai T and Koyama S and Komatubara Y and Suzuki Y and Taki M and Miyakoshi J.},
  title = {Effects of 2450 MHz electromagnetic fields with a wide range of SARs on methylcholanthrene-induced transformation in C3H10T1/2 cells.},
  year = {2005},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/16210792/},
}
PubMed: 16210792

Cited By (22 papers)

Quick Questions About This Study

A 2005 study found that 2450 MHz microwave radiation alone did not cause cancer transformation in mouse cells. However, when combined with cancer-causing chemicals at extremely high power levels (100+ W/kg), it increased malignant transformation rates beyond what chemicals alone produced.
Research on 2450 MHz radiation (WiFi frequency) suggests it may contribute to tumor promotion at extremely high power levels above 100 W/kg when combined with cancer-causing agents, but cannot initiate cancer formation on its own in laboratory cell studies.
Studies show 2450 MHz radiation affects cancer cell transformation only at extremely high SAR levels exceeding 100 W/kg. These power levels are thousands of times higher than typical consumer device exposures, which rarely exceed 2 W/kg near the body.
Research demonstrates that 2450 MHz microwave radiation produces cancer-promoting effects distinct from heat alone. When researchers tested equivalent heating without radiation, they found no increased cancer transformation, suggesting non-thermal biological mechanisms at extremely high power levels.
Laboratory studies indicate 2450 MHz radiation cannot initiate cancer development but may promote existing cancer processes at extremely high power levels (100+ W/kg). The radiation requires pre-existing cancer-causing chemicals to enhance malignant transformation in mouse cells.