Methods for quantitative evaluation of dynamics of repair proteins within irradiated cells
Collection editors:
Neumann, Reinhard; Apel, Pavel; Toulemonde, Marcel; Trautmann, Christina
Title of conference publication:
Swift Heavy Ions in Matter
Subtitle of conference publication:
Proceedings of the Sixth International Symposium on Swift Heavy Ions in Matter (SHIM 2005)
Journal:
Nuclear Instruments and Methods in Physics Research Section B
Volume:
245
Issue:
1
Conference title:
International Symposium on Swift Heavy Ions in Matter (6., 2005, Aschaffenburg)
Venue:
Aschaffenburg, Germany
Year of conference:
2005
Date of conference beginning:
28.05.2005
Date of conference ending:
31.05.2005
Year:
2006
Pages from - to:
298-301
Language:
Englisch
Keywords:
Heavy ion cell irradiation ; Microbeam ; Protein dynamics ; γ-H2AX
Abstract:
Living HeLa cells are irradiated well directed with single 100 MeV oxygen ions by the superconducting ion microprobe SNAKE, the Superconducting Nanoscope for Applied Nuclear (=Kern-) Physics Experiments, at the Munich 14 MV tandem accelerator. Various proteins, which are involved directly or indirectly in repair processes, accumulate as clusters (so called foci) at DNA-double strand breaks (DSBs) induced by the ions. The spatiotemporal dynamics of these foci built by the phosphorylated histone γ-H2AX are studied. For this purpose cells are irradiated in line patterns. The γ-H2AX is made visible under the fluorescence microscope using immunofluorescence techniques. Quantitative analysis methods are developed to evaluate the data of the microscopic images in order to analyze movement of the foci and their changing size. «
Living HeLa cells are irradiated well directed with single 100 MeV oxygen ions by the superconducting ion microprobe SNAKE, the Superconducting Nanoscope for Applied Nuclear (=Kern-) Physics Experiments, at the Munich 14 MV tandem accelerator. Various proteins, which are involved directly or indirectly in repair processes, accumulate as clusters (so called foci) at DNA-double strand breaks (DSBs) induced by the ions. The spatiotemporal dynamics of these foci built by the phosphorylated histone γ... »