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001010519 0247_ $$2doi$$a10.1080/028418600750063758
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001010519 0247_ $$2ISSN$$a0348-5196
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001010519 0247_ $$2ISSN$$a0567-8064
001010519 0247_ $$2ISSN$$a1100-1704
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001010519 037__ $$aFZJ-2023-03102
001010519 041__ $$aEnglish
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001010519 1001_ $$0P:(DE-Juel1)133469$$aKriehuber, Ralf$$b0$$eCorresponding author$$ufzj
001010519 245__ $$aApoptosis Induction and Micronucleus Formation after Exposure to the Auger Electron Emitter Zinc-65 in a Human Cell Line
001010519 260__ $$aAbingdon$$bTaylor & Francis Group$$c2000
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001010519 520__ $$aInduction of apoptosis and micronucleus formation has been studied in a transformed human squamous cell carcinoma cell line (SCL-II) after exposure to the Auger electron emitter Zinc-65 (65Zn) and after external low-LET radiation. Exposure to non-radioactive Zn and unirradiated cells served as controls. Studies on the cellular uptake of 65Zn2+ have been carried out in vitro and conventional dosimetric models have been applied to derive the absorbed radiation dose. Auger electrons, generated during decay of 65Zn2+, are strong inducers of micronuclei as well as of apoptosis, in comparison to external low-LET irradiation. The relative biological effectiveness has been determined and was found to be in the range of 1.2-2.7 for the two investigated biological endpoints, depending on which mathematical model for describing the dose-effect curves was used. A non-uniform distribution of intracellular Zn2 + was observed, showing a strong signal in the perinuclear region. We conclude that separate radiation weighting factors for Auger electrons should be established depending on the nuclide and its ability to interact with the DNA (e.g. 65Zn by Zinc-finger proteins)
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001010519 7001_ $$0P:(DE-HGF)0$$aSimkó, Myrtill$$b1
001010519 773__ $$0PERI:(DE-600)1492623-4$$a10.1080/028418600750063758$$gVol. 39, no. 6, p. 699 - 706$$n6$$p699 - 706$$tActa oncologica$$v39$$x0284-186X$$y2000
001010519 8564_ $$uhttps://juser.fz-juelich.de/record/1010519/files/Apoptosis%20Induction%20and%20Micronucleus%20Formation%20after%20Exposure%20to%20the%20Auger%20Electron%20Emitter%20Zinc%2065%20in%20a%20Human%20Cell%20Line.pdf$$yRestricted
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