Key clinical beam parameters for nanoparticle-mediated radiation dose amplification.

Key clinical beam parameters for nanoparticle-mediated radiation dose amplification.
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DOI:
10.1038/srep34040
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发表时间:
2016-09-23
期刊:
影响因子:
4.6
通讯作者:
Berbeco R
Berbeco R
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Detappe A;Kunjachan S;Drané P;Kotb S;Myronakis M;Biancur DE;Ireland T;Wagar M;Lux F;Tillement O;Berbeco R

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As nanoparticle solutions move towards human clinical trials in radiation therapy, the influence of key clinical beam parameters on therapeutic efficacy must be considered. In this study, we have investigated the clinical radiation therapy delivery variables that may significantly affect nanoparticle-mediated radiation dose amplification. We found a benefit for situations which increased the proportion of low energy photons in the incident beam. Most notably, “unflattened” photon beams from a clinical linear accelerator results in improved outcomes relative to conventional “flat” beams. This is measured by significant DNA damage, tumor growth suppression, and overall improvement in survival in a pancreatic tumor model. These results, obtained in a clinical setting, clearly demonstrate the influence and importance of radiation therapy parameters that will impact clinical radiation dose amplification with nanoparticles.
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