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Establishment and characterization of novel carbon-ion beam resistance cells
https://repo.qst.go.jp/records/71312
https://repo.qst.go.jp/records/71312545b1c70-1620-4d16-8bf0-b5a09f67c21d
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2013-10-24 | |||||
| タイトル | ||||||
| タイトル | Establishment and characterization of novel carbon-ion beam resistance cells | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Sato, Katsutoshi
× Sato, Katsutoshi× Irie, Daisuke× Nakawatari, Miyako× Nakamura, Etsuko× Moritake, Hiroyuki× Imai, Takashi× Shimokawa, Takashi× 佐藤 克俊× 入江 大介× 中渡 美也子× 中村 悦子× 森竹 浩之× 今井 高志× 下川 卓志 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The aim of this study is to establish carbon ion beam (C-ion) resistant cancer cells and to investigate the difference in cellular characteristics between C-ion resistant and X-ray resistant cancer cells. The X-ray resistant cancer cell was already established using mouse squamous cell carcinoma cell line NRS1. The cells were repeatedly irradiated with a total dose 60 Gy of 200 kVp X-ray, and this repetitive X-ray irradiation generated the X-ray resistant cancer cell NRS1-X60. Surprisingly the result from colony formation assay after irradiation of 290 MeV/n C-ion showed that NRS1-X60 cells also acquired significant C-ion resistance, Although C-ion irradiation is known to be more effective for killing cells of X-ray resistant tumor. The survival fractions of NRS1-X60 cells at 10 Gy of X-ray or 5 Gy of C-ion is approximately 6.3- or 6.7-folds increased compared with that in NRS1 cells, respectively. DNA repair potential in NRS1-X60 cells, which is represented by the disappearance of g-H2AX foci at one day after X-ray or C-ion irradiation, is promoted by approximately 2.3-fold compared with that in NRS1 cells for both irradiations. Currently, the NRS1 cells were repeatedly irradiated with a total dose 30 Gy of C-ion, and we established NRS1-C30 cells. We will report the difference in X-ray, C-ion sensitivity, and DNA repair potential between NRS1-X60, NRS1-C30, and NRS1. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Heavy Ion in Therapy and Space Radiation Symposium 2013 (HITSRS2013) | |||||
| 発表年月日 | ||||||
| 日付 | 2013-05-18 | |||||
| 日付タイプ | Issued | |||||
