Electromagnetic fields affect transcript levels of apoptosis-related genes in embryonic stem cell-derived neural progenitor cells.
Nikolova T, Czyz J, Rolletschek A, Blyszczuk P, Fuchs J, Jovtchev G, Schuderer J, Kuster N, Wobus AM · 2005
View Original AbstractEMF exposure triggers DNA damage response genes in developing brain cells, suggesting cellular stress even without visible harm.
Plain English Summary
Researchers exposed developing mouse brain cells to power line fields and cell phone radiation for up to 48 hours. Both EMF types altered genes controlling cell death and DNA repair, suggesting cells experienced stress even though they appeared to function normally afterward.
Why This Matters
This research is significant because it demonstrates that EMF exposure affects gene expression in developing neural cells at the molecular level, even when cells appear functionally normal. The 50 Hz magnetic field exposure (2 mT) was thousands of times stronger than typical household levels, while the 1.71 GHz RF exposure (1.5 W/kg SAR) was within the range of cell phone use near the head. What makes this study particularly important is that it shows EMF can trigger stress responses in the most vulnerable type of cells - those that will become brain tissue. The fact that cells activated genes associated with DNA damage and programmed cell death suggests they were responding to a perceived threat, even if they managed to maintain normal function through compensatory mechanisms. This adds to the growing body of evidence that EMF exposure isn't biologically inert, particularly during critical developmental periods.
Exposure Details
- Magnetic Field
- 2 mG
- SAR
- 1.5 W/kg
- Source/Device
- 50 Hz (ELF-EMF) and 1.71 GHz (RF-EMF)
- Exposure Duration
- 6 h and 48 h
Exposure Context
This study used 2 mG for magnetic fields:
- 100Kx above the Building Biology guideline of 0.2 mG
- 20Kx above the BioInitiative Report recommendation of 1 mG
This study used 1.5 W/kg for SAR (device absorption):
- 3.8x above the Building Biology guideline of 0.4 W/kg
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 Details
Mouse embryonic stem (ES) cells were used as an experimental model to study the effects of electromagnetic fields (EMF).
ES-derived nestin-positive neural progenitor cells were exposed to extremely low frequency EMF simul...
Quantitative RT-PCR analysis revealed that ELF-EMF exposure to ES-derived neural cells significantly...
We may conclude that EMF exposure of ES-derived neural progenitor cells transiently affects the transcript level of genes related to apoptosis and cell cycle control. However, these responses are not associated with detectable changes of cell physiology, suggesting compensatory mechanisms at the translational and posttranslational level.
Show BibTeX
@article{t_2005_electromagnetic_fields_affect_transcript_1225,
author = {Nikolova T and Czyz J and Rolletschek A and Blyszczuk P and Fuchs J and Jovtchev G and Schuderer J and Kuster N and Wobus AM},
title = {Electromagnetic fields affect transcript levels of apoptosis-related genes in embryonic stem cell-derived neural progenitor cells.},
year = {2005},
doi = {10.1096/fj.04-3549fje},
url = {https://faseb.onlinelibrary.wiley.com/doi/full/10.1096/fj.04-3549fje},
}