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A laser-plasma-produced soft X-ray laser at 89 eV generates DNA double-strand breaks in human cancer cells.
https://repo.qst.go.jp/records/47396
https://repo.qst.go.jp/records/473965f618a18-3e14-4948-b294-97aa7589c7fb
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-05-18 | |||||
タイトル | ||||||
タイトル | A laser-plasma-produced soft X-ray laser at 89 eV generates DNA double-strand breaks in human cancer 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_6501 | |||||
資源タイプ | journal article | |||||
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× Nishikino, Masaharu× Kawachi, Tetsuya× Shimokawa, Takashi× Imai, Takashi× Teshima, Teruki× Nishimura, Hiroaki× Kando, Masaki× 佐藤 克俊× 下川 卓志× 今井 高志 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | While it has been expected that X-ray laser will be widely applied to biomedical studies, this has not been achieved to date and its biological effects such as DNA damage have not been evaluated. As a first step for its biological application, we developed a culture cell irradiation system, particularly designed for a plasma-driven soft X-ray laser pulse, to investigate whether the soft X-ray laser is able to induce DNA double strand breaks (DSBs) in living cells or not. The human adenocarcimona cell line A549 was irradiated with the soft X-ray laser at a photon energy of 89 eV and the repair focus formation of the DSBs was assessed by immunofluorescence staining with antiphosphorylated DNA-PKcs (p-DNA-PKcs), ATM (p-ATM) and γ-H2AX antibody. The p-DNA-PKcs, ATM, and γ-H2AX foci were clearly identified after soft X-ray laser irradiation. Furthermore, the increase in the X-ray laser shot number, even from a single shot, results in the increase in p-DNA-PKcs foci. These results are the first evidence that the 89 eV soft X-ray laser is able to induce DSB in living cells. Our study demonstrated that this irradiation system is a useful tool for investigating the radiobiological effect of soft X-ray laser. | |||||
書誌情報 |
Journal of radiation research 巻 56, 号 4, p. 633-638, 発行日 2015-04 |
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出版者 | ||||||
出版者 | Oxford University Press | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0449-3060 | |||||
PubMed番号 | ||||||
識別子タイプ | PMID | |||||
関連識別子 | 25862698 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1093/jrr/rrv015 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://jrr.oxfordjournals.org/content/early/2015/04/09/jrr.rrv015.full | |||||
関連名称 | http://jrr.oxfordjournals.org/content/early/2015/04/09/jrr.rrv015.full |