Microwaves from Mobile Phones Inhibit 53BP1 Focus Formation in Human Stem Cells Stronger than in Differentiated Cells: Possible Mechanistic Link to Cancer Risk
Authors not listed · 2009
Microwaves from mobile phones inhibited 53BP1 focus formation in human stem cells more strongly than in differentiated cells.
Plain English Summary
They analyzed 53BP1 foci marking DNA repair sites using laser confocal microscopy. Microwaves inhibited 53BP1 focus formation in both human primary fibroblasts and mesenchymal stem cells, with the same GSM (915 MHz) and UMTS (1947.4 MHz) frequencies effective across all cell types. Exposure at 905 MHz did not inhibit foci in differentiated cells but showed some effects in stem cells, and stem cells did not adapt to chronic exposure over 2 weeks unlike fibroblasts.
Why This Matters
The researchers note that DNA double-strand breaks and their misrepair in stem cells are critical events in the origination of leukemias and tumors such as gliomas. The results parallel previous findings for human lymphocytes. The strongest microwave effects were always observed in stem cells. This result may suggest significant misbalance in DSB repair and severe stress response. The findings indicate stem cells are most sensitive to microwave exposure and react to more frequencies than differentiated cells, which may be important for cancer risk assessment.
Exposure Information
Specific exposure levels were not quantified in this study.
Show BibTeX
@article{microwaves_from_mobile_phones_inhibit_53bp1_focus_formation_in_human_stem_cells_stronger_than_in_differentiated_cells_possible_mechanistic_link_to_cancer_risk_ce834,
author = {Unknown},
title = {Microwaves from Mobile Phones Inhibit 53BP1 Focus Formation in Human Stem Cells Stronger than in Differentiated Cells: Possible Mechanistic Link to Cancer Risk},
year = {2009},
doi = {10.1289/ehp.0900781},
}