The effect of exposure to radiofrequency LTE signal and coexposure to mitomycin-C in Chinese hamster lung fibroblast V79 cells
No Effects Found
Sannino A, Romeo S, Scarfì MR, Pinchera D, Schettino F, Alonzo M, Allocca M, Zeni O ·2024
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The study found no direct effects from 1950 MHz LTE radiofrequency exposure alone, but observed potential protective effects against chemically-induced damage when cells were pre-exposed to RF at higher power levels before cytotoxic treatment.
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Summary written for general audiences
This in vitro study exposed Chinese hamster lung fibroblast V79 cells to 1950 MHz LTE radiofrequency signals at two SAR levels (0.3 and 1.25 W/kg), alone and combined with the cytotoxic agent mitomycin-C, measuring chromosomal damage, oxidative stress, and cell cycle effects. RF exposure alone produced no detectable effects, but pre-exposure followed by mitomycin-C treatment at higher SAR levels resulted in reduced chromosomal damage and oxidative stress compared to mitomycin-C treatment alone.
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Cite This Study
Sannino A, Romeo S, Scarfì MR, Pinchera D, Schettino F, Alonzo M, Allocca M, Zeni O (2024). The effect of exposure to radiofrequency LTE signal and coexposure to mitomycin-C in Chinese hamster lung fibroblast V79 cells.
Show BibTeX
@article{sannino_a_romeo_s_scarf_mr_pinchera_d_schettino_f_alonzo_m_allocca_m_zeni_o_ce3005,
author = {Sannino A and Romeo S and Scarfì MR and Pinchera D and Schettino F and Alonzo M and Allocca M and Zeni O},
title = {The effect of exposure to radiofrequency LTE signal and coexposure to mitomycin-C in Chinese hamster lung fibroblast V79 cells},
year = {2024},
doi = {10.1002/bem.22524},
}
Yes, this study found that human neuroblastoma cells exposed to 1950 MHz UMTS signals at cell phone-typical power levels showed protection against DNA damage from toxic chemicals, even with exposures as short as 1-3 hours daily.
The research showed that 1, 3, and 10-hour daily exposures were all effective at protecting cells, not just the original 20-hour exposure. This suggests the protective effect doesn't require prolonged radiation exposure to occur.
The study used specific absorption rates of 0.3 and 1.25 W/kg, which are similar to levels produced by cell phones during typical use. Both power levels provided the same protective effects against oxidative DNA damage.
No, the molecular analysis revealed no changes in key stress response proteins like heat shock proteins or thioredoxin-1. The biological mechanism responsible for the protective effect remains unknown and requires further investigation.
No, the 1950 MHz UMTS radiation did not cause any DNA damage on its own in these brain cells. The protective effect only appeared when cells were subsequently exposed to a DNA-damaging chemical called menadione.
