Effects of combined radiofrequency radiation exposure on the cell cycle and its regulatory proteins

The aim of this study was to investigate whether single or combined radio frequency (RF) radiation exposure has effects on the cell cycle and its regulatory proteins. Exposure of MCF7 cells to either single (837 MHz) or combined (837 and 1950 MHz) RF radiation was conducted at specific absorption ra...

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Published in:Bioelectromagnetics 2011-04, Vol.32 (3), p.169-178
Main Authors: Lee, Kwan-Yong, Kim, Bong Cho, Han, Na-Kyung, Lee, Yun-Sil, Kim, Taehong, Yun, Jae-Hoon, Kim, Nam, Pack, Jeong-Ki, Lee, Jae-Seon
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Language:English
Subjects:
Bromodeoxyuridine - metabolism
cell cycle
Cell Cycle - radiation effects
Cell Cycle Proteins - metabolism
Cell Line, Tumor
DNA - biosynthesis
DNA synthesis
Humans
MCF7 cells
Radio Waves
RF radiation
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container_title Bioelectromagnetics
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creator Lee, Kwan-Yong
Kim, Bong Cho
Han, Na-Kyung
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Pack, Jeong-Ki
Lee, Jae-Seon
description The aim of this study was to investigate whether single or combined radio frequency (RF) radiation exposure has effects on the cell cycle and its regulatory proteins. Exposure of MCF7 cells to either single (837 MHz) or combined (837 and 1950 MHz) RF radiation was conducted at specific absorption rate values of 4 W/kg for 1 h. During the exposure period, the chamber was made isothermal by circulating water through the cavity. After RF radiation exposure, DNA synthesis rate and cell cycle distribution were assessed. The levels of cell cycle regulatory proteins, p53, p21, cyclins, and cyclin‐dependent kinases were also examined. The positive control group was exposed to 0.5 and 4 Gy doses of ionizing radiation (IR) and showed changes in DNA synthesis and cell cycle distribution. The levels of p53, p21, cyclin A, cyclin B1, and cyclin D1 were also affected by IR exposure. In contrast to the IR‐exposed group, neither the single RF radiation‐ nor the combined RF radiation‐exposed group elicited alterations in DNA synthesis, cell cycle distribution, and levels of cell cycle regulatory proteins. These results indicate that neither single nor combined RF radiation affect cell cycle progression. Bioelectromagnetics 32:169–178, 2011. © 2010 Wiley‐Liss, Inc.
doi_str_mv 10.1002/bem.20618
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source Wiley-Blackwell Journals
subjects Bromodeoxyuridine - metabolism
cell cycle
Cell Cycle - radiation effects
Cell Cycle Proteins - metabolism
Cell Line, Tumor
DNA - biosynthesis
DNA synthesis
Humans
MCF7 cells
Radio Waves
RF radiation
title Effects of combined radiofrequency radiation exposure on the cell cycle and its regulatory proteins
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