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Middle East Journal of Cancer، جلد ۱۴، شماره ۲، صفحات ۲۰۵-۲۱۸
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عنوان انگلیسی In Vitro Radiosensitization of T47D and MDA-MB-231 Breast Cancer Cells with the Neoflavonoid Dalbergin
چکیده انگلیسی مقاله Background: Radiotherapy is a frequently used therapeutic modality for breast cancer. Dalbergin, a natural antioxidant, inhibits carcinogens and tumor progression. In the present study, we investigated the effect of Dalbergin on the response of T47D and MDA-MB-231 breast cancer cell lines to ionizing radiation.Method: In this experimental in vitro study, doubling time of T47D and MDAMB- 231 were obtained from the growth curve. The cytotoxic effect of Dalbergin on T47D and MDA-MB-231 breast cancer cells were estimated via MTT assay. To determine the clonogenic ability, we treated T47D and MDA-MB-231 with Dalbergin for 48 h prior to irradiation, subsequent to which a colony assay was performed. Real-time polymerase chain reaction was employed to determine the gene expression level.Results: Dalbergin inhibited proliferation of T47D and MDA-MB-231 in a time and concentration-dependent manner. Additionally, the most appropriate time for the treatment of these types of cancer cells was found to be 48 h and the drug's concentration in both cell lines was different. The IC50 values of T47D and MDA-MB-231 cells were 0.001 and 0.0001 μM, respectively. Moreover, this drug radiaosensitizes both cell lines effectively compared with the radiation only. Finally, the gene expression level of p53, Bcl-2, and STAT3 were investigated in cancer cells.Conclusion: Dalbergin showed apoptotic effects probably through the STAT/p53 signaling pathway. Therefore, Dalbergin could be considered as a radiosensitizer and its effects may be owing to increased cell death.
کلیدواژه‌های انگلیسی مقاله Dalbergin, Cells, X-rays, Apoptotic, Cell death
نویسندگان مقاله Fereshte Mahdizade Valojerdi |
Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran

Bahram Goliaei |
Department of Biophysics, Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran

Nakisa Rezakhani |
Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran

Alireza Nikoofar |
Department of Radiotherapy, Iran University of Medical Sciences (IUMS), Tehran, Iran

Hoda Keshmiri Neghab |
Department of Photo Healing and Regeneration, Medical Laser Research Center, Yara Institute, ACECR, Tehran, Iran

Mohammad Hasan Soheilifar |
Department of Medical Laser, Medical Laser Research Center, Yara Institute, ACECR, Tehran, Iran

Bahareh Bigdeli |
Department of Biophysics, Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran

نشانی اینترنتی https://mejc.sums.ac.ir/article_48305_248ccf0d669127c71bad3dbc754a61ac.pdf
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