Academic Journal
Dose-Dependent Shift in Relative Contribution of Homologous Recombination to DNA Repair after Low-LET Ionizing Radiation Exposure: Empirical Evidence and Numerical Simulation
| العنوان: | Dose-Dependent Shift in Relative Contribution of Homologous Recombination to DNA Repair after Low-LET Ionizing Radiation Exposure: Empirical Evidence and Numerical Simulation |
|---|---|
| المؤلفون: | Oleg Belov, Anna Chigasova, Margarita Pustovalova, Andrey Osipov, Petr Eremin, Natalia Vorobyeva, Andreyan N. Osipov |
| المصدر: | Current Issues in Molecular Biology, Vol 45, Iss 9, Pp 7352-7373 (2023) |
| بيانات النشر: | MDPI AG, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Biology (General) |
| مصطلحات موضوعية: | DNA double-strand breaks, ionizing radiation, DNA repair pathways, homologous recombination, mathematical modeling, Biology (General), QH301-705.5 |
| الوصف: | Understanding the relative contributions of different repair pathways to radiation-induced DNA damage responses remains a challenging issue in terms of studying the radiation injury endpoints. The comparative manifestation of homologous recombination (HR) after irradiation with different doses greatly determines the overall effectiveness of recovery in a dividing cell after irradiation, since HR is an error-free mechanism intended to perform the repair of DNA double-strand breaks (DSB) during S/G2 phases of the cell cycle. In this article, we present experimentally observed evidence of dose-dependent shifts in the relative contributions of HR in human fibroblasts after X-ray exposure at doses in the range 20–1000 mGy, which is also supported by quantitative modeling of DNA DSB repair. Our findings indicate that the increase in the radiation dose leads to a dose-dependent decrease in the relative contribution of HR in the entire repair process. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1467-3045 1467-3037 |
| Relation: | https://www.mdpi.com/1467-3045/45/9/465; https://doaj.org/toc/1467-3037; https://doaj.org/toc/1467-3045 |
| DOI: | 10.3390/cimb45090465 |
| URL الوصول: | https://doaj.org/article/417834f39ddb49c6bb46ade8706c120c |
| رقم الانضمام: | edsdoj.417834f39ddb49c6bb46ade8706c120c |
| قاعدة البيانات: | Directory of Open Access Journals |
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