Exposure to long-term evolution radiofrequency electromagnetic fields decreases neuroblastoma cell proliferation via Akt/mTOR-mediated cellular senescence
Kim JH, Jeon S, Choi H-D, Lee J-H, Bae J-S, Kim N, Kim H-G, Kim K- B, Kim HR · 2021
RF-EMF exposure at LTE frequencies may suppress neuroblastoma cell proliferation through a senescence mechanism rather than through direct DNA damage or cell death pathways.
Plain English Summary
This study examined the effects of long-term evolution (LTE) radiofrequency electromagnetic fields (1760 MHz at 4 W/kg SAR) on neuroblastoma cell proliferation in SH-SY5Y cells. The researchers found that RF-EMF exposure decreased cell growth and proliferation by inducing cellular senescence through the Akt/mTOR pathway, which activated p53 and its downstream CDK inhibitors, ultimately delaying the cell cycle without causing DNA damage or apoptosis.
Why This Matters
Cellular senescence is a state of permanent cell cycle arrest that differs mechanistically from apoptosis (programmed cell death), representing an alternative pathway by which external stressors can inhibit proliferation. The findings are limited to in vitro studies using a single neuronal cell line and may not directly translate to whole-organism or in vivo effects.
Exposure Information
Specific exposure levels were not quantified in this study.
Show BibTeX
@article{kim_jh_jeon_s_choi_h_d_lee_j_h_bae_j_s_kim_n_kim_h_g_kim_k_b_kim_hr_ce2860,
author = {Kim JH and Jeon S and Choi H-D and Lee J-H and Bae J-S and Kim N and Kim H-G and Kim K- B and Kim HR},
title = {Exposure to long-term evolution radiofrequency electromagnetic fields decreases neuroblastoma cell proliferation via Akt/mTOR-mediated cellular senescence},
year = {2021},
doi = {10.6004/jnccn.2021.0012},
}