Estimation of biological effect of Cu-64 radiopharmaceuticals with Geant4-DNA simulation.
Estimation of biological effect of Cu-64 radiopharmaceuticals with Geant4-DNA simulation.
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DOI:
10.1038/s41598-022-13096-2
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发表时间:
2022-05-27
影响因子:
4.6
通讯作者:
中科院分区:
文献类型:
--
作者:
The aim of this work is to estimate the biological effect of targeted radionuclide therapy using Cu-64, which is a well-known Auger electron emitter. To do so, we evaluate the absorbed dose of emitted particles from Cu-64 using the Geant4-DNA Monte Carlo simulation toolkit. The contribution of beta particles to the absorbed dose is higher than that of Auger electrons. The simulation result agrees with experimental ones evaluated using coumarin-3-carboxylic acid chemical dosimeter. The simulation result is also in good agreement with previous ones obtained using fluorescent nuclear track detector. From the results of present simulation (i.e., absorbed dose estimation) and previous biological experiments using two cell lines (i.e., evaluation of survival curves), we have estimated the relative biological effectiveness (RBE) of Cu-64 emitted particles on CHO wild-type cells and xrs5 cells. The RBE of xrs5 cells exposed to Cu-64 is almost equivalent to that with gamma rays and protons and C ions. This result indicates that the radiosensitivity of xrs5 cells is independent of LET. In comparison to this, the RBE on CHO wild-type cells exposed to Cu-64 is significantly higher than gamma rays and almost equivalent to that irradiated with C ions with a linear energy transfer of 70 keV/μm.
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影响因子:
2.9
作者:
Kai, Takeshi;Yokoya, Akinari;Watanabe, Ritsuko
通讯作者:
Watanabe, Ritsuko
影响因子:
3.5
作者:
Carrasco-Hernández J;Ramos-Méndez J;Faddegon B;Jalilian AR;Moranchel M;Ávila-Rodríguez MA
通讯作者:
Ávila-Rodríguez MA
DOI:
10.2967/jnumed.118.216853
发表时间:
2019-04
期刊:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine
影响因子:
--
作者:
Kodaira S;Morokoshi Y;Li HK;Konishi T;Kurano M;Hasegawa S
通讯作者:
Hasegawa S
影响因子:
3.8
作者:
HOWELL, RW
通讯作者:
HOWELL, RW
影响因子:
3.8
作者:
De Nardo, Laura;Pupillo, Gaia;Mou, Liliana;Esposito, Juan;Rosato, Antonio;Melendez-Alafort, Laura
通讯作者:
Melendez-Alafort, Laura