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In vivo study of interferon-?, transforming growth factor-�, and interleukin-4 gene expression induced by radioadaptive response
Authors
S. Abdollahi-Dehkordi
H. Azimian
+5 more
M.-T. Bahreyni-Toossi
N. Hamzian
S. Khademi
M. Najafi-Amiri
M. Sankian
Publication date
30 April 2021
Publisher
Abstract
Introduction: In the present study, the radioadaptive role of the immune system induced by low dose (LD) was investigated for its in vivo protective activity. Materials and Methods: Quantitative analysis of cytokine gene expression was assessed for their in vivo activity in BALB/c mice. To evaluate the adaptive response induced by LD on the mice spleen lymphocyte, the cytokine interleukin (IL)-4, interferon (IFN)-?, and transforming growth factor (TGF)-� expression was measured by a real-time quantitative polymerase chain reaction. To verify the radioadaptive effect of LD, animals were preirradiated at 10 cGy from a 60 Co source and then challenge dose at 200 cGy was delivered. Independent sample student's t-test was employed to compare cytokine gene expression in radioadaptive (10 + 200 cGy), LD (10 cGy), high-dose (HD, 200 cGy), and control groups of animals. Results: Following the HD, the cytokine gene expression of IFN-?, IL-4, and TGF-� was significantly decreased compared to the control group (P = 0.0001). However, TGF-� expression was also decreased significantly in the LD and adaptive groups compared to the control group (P = 0.0001). IFN-?/IL-4 ratio in the adaptive group was significantly decreased compared to the HD group (P = 0.0001). Conclusion: These results indicate that the immune system plays an important role for radioadaptive response induction by LD radiation to adjust the harmful effects of HD irradiation. © 2021 Journal of Cancer Research and Therapeutics | Published by Wolters Kluwer-Medknow
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eprints Iran University of Medical Sciences
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oai:eprints.iums.ac.ir:39541
Last time updated on 18/07/2022