Radiation Protection Dosimetry Advance Access originally published online on January 8, 2007
Radiation Protection Dosimetry 2006 122(1-4):121-123; doi:10.1093/rpd/ncl477
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Detailed analysis of the response of different cell lines to carbon irradiation
íková*
Lokají
ekInstitute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 18221 Praha 8, Czech Republic
* Corresponding author: Hromcikova{at}seznam.cz
| Abstract |
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Published survival data for Chinese hamster ovarian cells CHO-K1 and their radiosensitive mutant xrs5 after irradiation by carbon ions of energies from 2.4 to 266.4 MeV u1 have been analysed using the probabilistic two-stage radiobiological model, which enables to represent the interplay of damage induction and repair processes. The results give support for the hypothesis that the differences in radiation sensitivity of diverse cell lines are given primarily by their different repair capabilities, and indicate the need for explicitly representing the outcome of repair processes in radiobiological models and treatment-planning approaches in radiotherapy.