Abstract
Background
Recently exposure to ionizing radiation driven by artificial radiation sources such as Medical X-rays and Nuclear medicine has increased hastily. Ionizing radiation-induced the DNA damage and activate the DNA damage response signaling pathways. The aim of this study was to evaluate the role of miR-21 and miR-625 in response to low-dose ionizing radiation.
Materials and methods
In this study, the blood sample of 38 volunteer patients who underwent Cardiac scans before and after 99mTc-MIBI injection were used. The WBC of patients was used for RNA extraction and after cDNA synthesis by the poly-A method the expression level of miR-21 and miR-625 was evaluated by real-time PCR method.
Results
The results of this study indicated that miR-21 and miR- 625 were significantly upregulated under exposure to low-dose ionizing radiation. The expression level of these miRNAs was not significantly correlated with the age and BMI of patients. More ever the bioinformatics analysis indicated that SP1 was a common target of both miRNAs and had the highest degree between hub genes.
Conclusion
In summary miR-21 and miR-625 can contribute to the response to acute low dose ionizing radiation by targeting the SP1. However further studies should be carried out on the molecular mechanism of effects of miR-21 and miR-625 in response to low dose ionizing radiation by targeting the SP1.
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Data availability
Data available on request due to privacy/ethical restrictions.
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Acknowledgements
The study was funded by Vice-chancellor for Research and Technology, Hamadan University of Medical Sciences (No. 9807024907).
Funding
The study was funded by Vice-chancellor for Research and Technology, Hamadan University of Medical Sciences (No. 9807024907).
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SA, SN, MS, and MA conceived and designed the analysis. RM and SA collected the data. SA, RM, and SN contributed to analysis tools. SA, RM, LT, and SN preformed the analysis. SA, MS, LT, MA and SN contributed to the interpretation of the results. SA wrote the manuscript in consultation with all authors.
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Ethical issues (Including plagiarism, informed consent, misconduct, data fabrication and/or falsifcation, double publication and/or submission, redundancy, etc.) have been completely observed by the authors. The ethical protocol of this study was approved by the Ethics Committee of Hamadan University of Medical Sciences. (Ethical code: IR.UMSHA.REC.1398.418) and written informed consent was obtained from all patients to participate in the study.
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The ethical protocol of this study was approved by the Ethics Committee of Hamadan University of Medical Sciences (Ethical code: IR.UMSHA.REC.1398.418) and written informed consent was obtained from all patients to participate in the study.
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Ethical issues (Including plagiarism, informed consent, misconduct, data fabrication and/or falsifcation, double publication and/or submission, redundancy, etc.) have been completely observed by the authors. All authors agreed with the content and that all gave explicit consent to submit and that they obtained consent from the responsible authorities at the institute/organization where the work has been carried out, before the work is submitted.
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Mahmoudi, R., Saidijam, M., Nikzad, S. et al. Human exposure to low dose ionizing radiation affects miR-21 and miR-625 expression levels. Mol Biol Rep 49, 1321–1327 (2022). https://doi.org/10.1007/s11033-021-06960-3
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DOI: https://doi.org/10.1007/s11033-021-06960-3