TY - JOUR
T1 - Non-thermal effects of terahertz radiation on gene expression in mouse stem cells
AU - Alexandrov, Boian S.
AU - Rasmussen, Kim
AU - Bishop, Alan R.
AU - Usheva, Anny
AU - Alexandrov, Ludmil B.
AU - Chong, Shou
AU - Dagon, Yossi
AU - Booshehri, Layla G.
AU - Mielke, Charles H.
AU - Lisa Phipps, M.
AU - Martinez, Jennifer S.
AU - Chen, Hou Tong
AU - Rodriguez, George
PY - 2011/9/1
Y1 - 2011/9/1
N2 - In recent years, terahertz radiation sources are increasingly being exploited in military and civil applications. However, only a few studies have so far been conducted to examine the biological effects associated with terahertz radiation. In this study, we evaluated the cellular response of mesenchymal mouse stem cells exposed to THz radiation. We apply low-power radiation from both a pulsed broad-band (centered at 10 THz) source and from a CW laser (2.52 THz) source. Modeling, empirical characterization, and monitoring techniques were applied to minimize the impact of radiation-induced increases in temperature. qRT-PCR was used to evaluate changes in the transcriptional activity of selected hyperthermic genes. We found that temperature increases were minimal, and that the differential expression of the investigated heat shock proteins (HSP105, HSP90, and CPR) was unaffected, while the expression of certain other genes (Adiponectin, GLUT4, and PPARG) showed clear effects of the THz irradiation after prolonged, broad-band exposure.
AB - In recent years, terahertz radiation sources are increasingly being exploited in military and civil applications. However, only a few studies have so far been conducted to examine the biological effects associated with terahertz radiation. In this study, we evaluated the cellular response of mesenchymal mouse stem cells exposed to THz radiation. We apply low-power radiation from both a pulsed broad-band (centered at 10 THz) source and from a CW laser (2.52 THz) source. Modeling, empirical characterization, and monitoring techniques were applied to minimize the impact of radiation-induced increases in temperature. qRT-PCR was used to evaluate changes in the transcriptional activity of selected hyperthermic genes. We found that temperature increases were minimal, and that the differential expression of the investigated heat shock proteins (HSP105, HSP90, and CPR) was unaffected, while the expression of certain other genes (Adiponectin, GLUT4, and PPARG) showed clear effects of the THz irradiation after prolonged, broad-band exposure.
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U2 - 10.1364/BOE.2.002679
DO - 10.1364/BOE.2.002679
M3 - Article
AN - SCOPUS:84860656615
SN - 2156-7085
VL - 2
SP - 2679
EP - 2689
JO - Biomedical Optics Express
JF - Biomedical Optics Express
IS - 9
ER -