Glutathione depletion and carbon ion radiation potentiate clustered DNA lesions, cell death and prevent chromosomal changes in cancer cells progeny. [PDF]
PLoS ONE, 2012 Poor local control and tumor escape are of major concern in head-and-neck cancers treated by conventional radiotherapy or hadrontherapy. Reduced glutathione (GSH) is suspected of playing an important role in mechanisms leading to radioresistance, and its
Maïté Hanot +8 more
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DNA damage responses in the context of the cell division cycle [PDF]
, 2010 During my PhD, I have investigated aspects of the DNA damage response (DDR) in the context of three different cellular scenarios: DNA damage signalling in response to double-strand breaks during mitosis, coordination of DNA replication with DNA damage ...
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DNA Damage and Radical Reactions: Mechanistic Aspects, Formation in Cells and Repair Studies
CHIMIA, 2008 Several examples of oxidative and reductive reactions of DNA components that lead to single and tandem modifications are discussed in this review.
Jean Cadet +8 more
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Dissociation Dynamics of XPC-RAD23B from Damaged DNA Is a Determining Factor of NER Efficiency. [PDF]
PLoS ONE, 2016 XPC-RAD23B (XPC) plays a critical role in human nucleotide excision repair (hNER) as this complex recognizes DNA adducts to initiate NER. To determine the mutagenic potential of structurally different bulky DNA damages, various studies have been ...
Benjamin Hilton +6 more
doaj +1 more source
Phosphorylation events surrounding the DNA damage response in "Saccharomyces cerevisiae" [PDF]
, 2007 Protein phosphorylation mediated by checkpoint kinases is crucial for the cellular response to DNA damage. The sensor kinases Mec1 and Tel1 initiate the checkpoint signaling cascade by directly activating the checkpoint effector kinase Rad53.
Schleker, Thomas Andreas
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Time-Resolved Repair of Clustered DNA Damage in γ-Irradiated Yeast Cells
DNABackground/Objectives: Exposure of cells to ionizing radiation induces isolated DNA lesions, including single-strand breaks, apurinic/apyrimidinic sites, and oxidized bases, as well as clustered damages of different complexity. The latter types of damage
Ana G. Sánchez, Deborah J. Keszenman
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Direct observation of damage clustering in irradiated DNA with atomic force microscopy [PDF]
Nucleic Acids Research, 2019 Abstract Ionizing radiation produces clustered DNA damage that contains two or more lesions in 10–20 bp. It is believed that the complexity of clustered damage (i.e., the number of lesions per damage site) is related to the biological severity of ionizing radiation. However, only simple clustered damage containing two vicinal lesions has
Xu, Xu +6 more
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Recruitment kinetics of DNA repair proteins Mdc1 and Rad52 but not 53BP1 depend on damage complexity. [PDF]
, 2012 The recruitment kinetics of double-strand break (DSB) signaling and repair proteins Mdc1, 53BP1 and Rad52 into radiation-induced foci was studied by live-cell fluorescence microscopy after ion microirradiation.
Hilmar Strickfaden (148181) +35 more
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PLoS ONE, 2013 Heavy particle irradiation produces complex DNA double strand breaks (DSBs) which can arise from primary ionisation events within the particle trajectory.
Nakako Izumi Nakajima +10 more
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Formation of Clustered DNA Damage after High-LET Irradiation: A Review [PDF]
Journal of Radiation Research, 2008 Radiation can cause as well as cure cancer. The risk of developing radiation-induced cancer has traditionally been estimated from cancer incidence among survivors of the atomic bombs in Hiroshima and Nagasaki.(1)) These data provide the best estimate of human cancer risk over the dose range for low linear energy transfer (LET) radiations, such as X- or
Megumi, Hada, Alexandros G, Georgakilas
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