Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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Outline of Final Research Achievements |
It is known that relative biological effectiveness (RBE) of high-LET carbon-ion irradiation is higher than that of low-LET radiation such as X-ray. We investigate the difference of radiosensitivities (clonogenic survival assay and cell proliferation) between carbon-ion beam irradiation combined with chemotherapy agents and X-ray irradiation combined with chemotherapy for non-small-cell lung cancer cell line, H460, in vitro. Carboplatin (CBDCA) or paclitaxel (PTX) was concomitantly used with carbon-ion irradiation. CBDCA and PTX showed a synergistic effect on cell-killing over carbon-ion beam for H460 cells in vitro. Carbon-ion beam combined with CBDCA or PTX induced apoptosis and senescence, and increased the expression of p21, p53, and Bax.
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