% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @INPROCEEDINGS{Schmitz:188029, author = {Schmitz, Sabine and Oskamp, Dominik and Pomplun, Ekkehard and Kriehuber, Ralf}, title = {{A}nalysis of {I}odine-125-induced chromosome aberrations}, reportid = {FZJ-2015-01514}, year = {2014}, abstract = {DNA-associated Auger-electron emitters (AEE) induce cellular damage leading to high-LET type cell survival curves and possess enhanced relative biological effectiveness. Moreover, DNA dsb induced by 125I-deoxyuridine (125I-UdR) decays are claimed to be very complex. To elucidate the assumed genotoxic potential, chromosome aberrations were analyzed in 125I-UdR-exposed human peripheral blood lymphocytes (PBL).After 18 h labeling with 125I-UdR the cell cycle distribution is severely disturbed. Furthermore, $40\%$ of PBL are fully labelled and $20\%$ show a moderate uptake. Primarily chromatid-type aberrations are induced. PBL reveal a very broad dose-dependent response spectrum: equal numbers of cells have either no aberration, or display a moderate aberration level. Few cells exhibit a high aberration score (> 10 aberrations). A dose-dependent increase of aberrations is measured in the range of 0.2 to 2 Gy, followed by a plateau between 2 and 4.5 Gy. The data indicate that even the lowest dose of 0.2 Gy leads to a 4.5-fold increase of aberrations in PBL compared to the controls. Furthermore, a dose-dependent increase of cell death is observed.125I-UdR has a very strong genotoxic capacity in human PBL even at very low doses of about 0.2 Gy. Efficiently labeled cells display a prolonged cell cycle compared to moderate labeled cells and cell death contributes substantially to the desynchronisation of the cell cycle. It can be concluded that every fourth intracellular 125I decay give rise to a single chromosome aberration.}, month = {Sep}, date = {2014-09-29}, organization = {17. Annual Meeting of the Society for Biological Radiation Research, Tübingen (Germany), 29 Sep 2014 - 1 Oct 2014}, subtyp = {After Call}, cin = {S-US}, cid = {I:(DE-Juel1)S-US-20090406}, pnm = {899 - ohne Topic (POF3-899)}, pid = {G:(DE-HGF)POF3-899}, typ = {PUB:(DE-HGF)24}, url = {https://juser.fz-juelich.de/record/188029}, }