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Iranian Journal of Medical Physics، جلد ۱۵، شماره Special Issue-۱۲th. Iranian Congress of Medical Physics، صفحات ۱۸۵-۱۸۵
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عنوان انگلیسی The Impact of Hyperthermia in Radiosensitivity of Human Cervical Carcinoma Cell Line HeLa
چکیده انگلیسی مقاله Introduction: The objective of this work was to investigate the therapeutic effect of a combination of hyperthermia at 43oC exposured for 20, 40, 60 min with 6MeV electron beams at different radiation doses (2, 4, 6 Gy) compared to radiation alone.   Materials and Methods: In this in vitro study, HeLa cells were exposed to either: 6MeV electron beams at different doses (2, 4, 6 Gy) and hyperthermia at 43oC for 20, 40, 60 min alone or electron beam followed by hyperthermia with 20-minute interval. The effect of hyperthermia and radiation alone as well as a combination of radiation with hyperthermia on cell viability and cell survival were estimated using the trypan blue dye exclusion assay and MTT assay immediately and 48 h after treatments, respectively. Results: The data obtained by trypan blue exclusion test showed that no significant reduction on cell viability when cells were treated RT (6 MeV, 2, 4, 6 Gy) and HT (43oC, 20, 40, 60 min) alone as well as RT followed by HT in comparison with control group (cells without treatment with the RT and HT). In addition, the data obtained by MTT assay showed significant cytotoxicity in the radiated groups compared to the control group. Also, our results showed HT alone did not effect on cytotoxicity. Moreover, our results showed that RT in combination with HT at 43oC for 20 min did not create significance cytotoxicity on HeLa cells in comparison with control group (group treated with radiation) (p>0.05). In contrast, RT in combination with HT at 43oC for 40,60 min had significant cytotoxicity on HeLa cells in comparison with control group (group treated with radiation) (p< 0.05). Conclusion: Our data suggest that combined treatment of 6MeV electron beams (RT) and hyperthermia (HT) can result in radiosensitization of cervical cancer cells.
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نویسندگان مقاله | Hamid Fakhimikabir
Department of Medical Physics and Medical Engineering, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran (Email:h.fakhimikabir@gmail.com, Phone: 09102102414)


| Mohamad Bagher Tavakoli
Department of Medical Physics and Medical Engineering, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran


| Ali Zarrabi
Department of Biotechnology, Faculty of Advanced Sciences and Technologies, University of Isfahan, Isfahan, Iran


| Alireza Amouheidari
Department of Radiation Oncology, Milad Hospital, Isfahan, Iran


| Soheila Rahgozar
Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan, Iran
نشانی اینترنتی http://ijmp.mums.ac.ir/article_12800.html
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