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Evaluation of the potential of mobile phone specific electromagnetic fields (UMTS) to produce micronuclei in human glioblastoma cell lines.

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Al-Serori H, Kundi M, Ferk F, Mišík M, Nersesyan A, Murbach M, Lah TT, Knasmüller S. · 2017

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UMTS cell phone radiation showed no chromosomal damage in brain tumor cells at real-world exposure levels, though cell death occurred at highest doses.

Plain English Summary

Summary written for general audiences

Austrian researchers exposed human brain tumor cells to UMTS cell phone radiation for 16 hours at levels reflecting real-world phone use (SAR levels of 0.25 to 1.0 W/kg). They found no evidence of DNA damage or chromosomal abnormalities, though the highest exposure level triggered programmed cell death in one type of brain cancer cell. This study suggests UMTS phone signals may not directly damage genetic material in brain cells.

Why This Matters

This study provides important data on one specific aspect of cell phone radiation effects, but it requires careful interpretation. While the researchers found no chromosomal damage from UMTS signals, they did observe programmed cell death at the highest exposure level - an effect that warrants further investigation. The study used brain tumor cells rather than healthy brain tissue, which limits how we can apply these findings to everyday phone use. What's particularly relevant is that the SAR levels tested (0.25 to 1.0 W/kg) mirror what your head experiences during typical phone calls. However, this single study examining one biological endpoint cannot definitively answer broader questions about cell phone safety. The science demonstrates that EMF effects are complex and may manifest through multiple biological pathways beyond direct DNA damage.

Exposure Details

SAR
0.25, 0.50 and 1 W/kg
Exposure Duration
16 hours

Exposure Context

This study used 0.25, 0.50 and 1 W/kg for SAR (device absorption):

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 0.25, 0.50 and 1 W/kgExtreme Concern - 0.1 W/kgFCC Limit - 1.6 W/kgEffects observed in the Extreme Concern rangeFCC limit is 2x higher than this level

Study Details

We investigated the effects of the universal mobile telecommunications system radiofrequency (UMTS-RF) signal, which is used in “smart” phones, on micronucleus (MN) formation and other anomalies such as nuclear buds (NBUDs) and nucleoplasmatic bridges (NPBs).

MN are formed by structural and numerical aberrations, NBs reflect gene amplification and NPBs are f...

In presence and absence of mitomycin C as former studies indicate that RF may cause synergistic effe...

Our findings indicate that the UMTS-RF signal does not cause chromosomal damage in glioblastoma cells; the mechanisms which lead to induction of programmed cell death will be investigated in further studies.

Cite This Study
Al-Serori H, Kundi M, Ferk F, Mišík M, Nersesyan A, Murbach M, Lah TT, Knasmüller S. (2017). Evaluation of the potential of mobile phone specific electromagnetic fields (UMTS) to produce micronuclei in human glioblastoma cell lines. Toxicol In Vitro. 40:264-271, 2017.
Show BibTeX
@article{h_2017_evaluation_of_the_potential_808,
  author = {Al-Serori H and Kundi M and Ferk F and Mišík M and Nersesyan A and Murbach M and Lah TT and Knasmüller S.},
  title = {Evaluation of the potential of mobile phone specific electromagnetic fields (UMTS) to produce micronuclei in human glioblastoma cell lines.},
  year = {2017},
  
  url = {https://www.sciencedirect.com/science/article/abs/pii/S0887233317300139},
}

Quick Questions About This Study

Austrian researchers found no evidence that UMTS 3G radiation causes chromosomal damage in human brain tumor cells. The 2017 study exposed glioblastoma cells to realistic phone radiation levels (0.25-1.0 W/kg) for 16 hours and detected no DNA breaks or genetic abnormalities.
Yes, but only at the highest exposure level. The study found that UMTS radiation at 1.0 W/kg triggered programmed cell death (apoptosis) in U251 brain cancer cells after 16 hours, while lower exposure levels showed no such effects.
The Austrian researchers tested SAR levels from 0.25 to 1.0 W/kg, which reflect real-world cell phone use. These exposure levels were applied to human glioblastoma cells for 16 hours to evaluate potential genetic damage from UMTS signals.
No, the 2017 study found no evidence that UMTS radiation causes micronuclei formation in human glioblastoma cells. Researchers specifically looked for these markers of chromosomal damage after 16-hour exposures but detected no increase in cellular abnormalities.
The study tested UMTS radiation both alone and combined with mitomycin C, a known DNA-damaging drug. Unlike mitomycin C, UMTS radiation showed no ability to cause genetic damage in brain tumor cells, even when combined with the chemical.