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Basic Study of Carbon Ion Radiotherapy Focused on Cancer Stem Cells

https://repo.qst.go.jp/records/66337
https://repo.qst.go.jp/records/66337
f77d91f9-e970-4709-a618-1a01eb3c7cb1
Item type 会議発表用資料 / Presentation(1)
公開日 2017-05-30
タイトル
タイトル Basic Study of Carbon Ion Radiotherapy Focused on Cancer Stem 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 崔, 星

× 崔, 星

WEKO 652678

崔, 星

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鈴木, 雅雄

× 鈴木, 雅雄

WEKO 652679

鈴木, 雅雄

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藤森, 亮

× 藤森, 亮

WEKO 652680

藤森, 亮

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崔 星

× 崔 星

WEKO 652681

en 崔 星

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鈴木 雅雄

× 鈴木 雅雄

WEKO 652682

en 鈴木 雅雄

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藤森 亮

× 藤森 亮

WEKO 652683

en 藤森 亮

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内容記述タイプ Abstract
内容記述 For the past two decades, particle radiotherapy with carbon ion beams have treated more than 10000 patients with various radioresistant tumors and achieved promising results. Here I try to report our recent new findings on the mechanisms of high radiocurability produced by carbon ion beams alone or in combination with anticancer drugs from the point of view of targeting cancer stem cells (CSCs) in vitro and in vivo. The colony, spheroid formation as well as tumorigenicity assays confirmed that subpopulation of CD44+/ESA+ and CD44+/CD24- cells exactly have CSC properties compared to CD44-/ESA- and CD44-/CD24+ cells in pancreatic, liver and breast cancer cells. The relative biological effectiveness (RBE) values for the carbon ion beams relative to X-rays at the D10 levels for CSCs were 2.1-2.4. RT Profiler PCR Array analysis showed that apoptosis- and autophagy-related gene expression was significantly induced after carbon ion beam combined with gemcitabine or sorafenib or cisplatin compared to carbon ion alone or X-ray combined with gemcitabine or sorafenib or cisplatin in pancreatic, liver and breast cancer cells. Xenograft tumors from pancreatic, liver and breast cancer cells were effectively destroyed with 25 Gy of carbon ion beam combined with 50 mg/kg gemcitabine or 60 mg/kg sorafenib or 5 mg/kg cisplatin. Taken together, carbon ion beam has superior potential to kill pancreatic, liver and breast CSCs, and can achieve high curability when combined with anticancer drugs compared to carbon ion beam alone.
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 5th International Symposium on Space Radiation and Particle Radiotherapy
発表年月日
日付 2017-05-26
日付タイプ Issued
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