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Ionizing-radiation induced DNA double-strand breaks: a direct and indirect lighting up

Abstract : The occurrence of DNA double-strand breaks (DSBs) induced by ionizing radiation has been extensively studied by biochemical or cell imaging techniques. Cell imaging development relies on technical advances as well as our knowledge of the cell DNA damage response (DDR) process. The DDR involves a complex network of proteins that initiate and coordinate DNA damage signaling and repair activities. As some DDR proteins assemble at DSBs in an established spatio-temporal pattern, visible nuclear foci are produced. In addition, post-translational modifications are important for the signaling and the recruitment of specific partners at damaged chromatin foci. We briefly review here the most widely used methods to study DSBs. We also discuss the development of indirect methods, using reporter expression or intra-nuclear antibodies, to follow the production of DSBs in real time and in living cells.
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Submitted on : Friday, May 29, 2020 - 9:13:50 AM
Last modification on : Tuesday, October 19, 2021 - 2:24:26 PM

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Julien Vignard, Gladys Mirey, Bernard Salles. Ionizing-radiation induced DNA double-strand breaks: a direct and indirect lighting up. Radiotherapy and Oncology, Elsevier, 2013, 108 (3), pp.362-369. ⟨10.1016/j.radonc.2013.06.013⟩. ⟨hal-02648277⟩

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