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ROS Production and Distribution: A New Paradigm to Explain the Differential Effects of X-ray and Carbon Ion Irradiation on Cancer Stem Cell Migration and Invasion
https://repo.qst.go.jp/records/75822
https://repo.qst.go.jp/records/7582250619ecd-b7ed-4bf3-b7bf-982fd3d5034a
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-05-14 | |||||
タイトル | ||||||
タイトル | ROS Production and Distribution: A New Paradigm to Explain the Differential Effects of X-ray and Carbon Ion Irradiation on Cancer Stem Cell Migration and Invasion | |||||
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 |
WOZNY, Anne-Sophie
× WOZNY, Anne-Sophie× Vares, Guillaume× Gersende, ALPHONSE× Lauret, Alexandra× Monini, Caterina× Magne, Nicolas× Cuerq, Charlotte× 藤森, 亮× Jean-Claude, Monboisse× Beuve, Michael× 中島, 徹夫× RODRIGUEZ-LAFRASSE, Claire× Wozny, Annesophie× Vares, Guillaume× Alphonse, Gersende× Fujimori, Akira× Nakajima, Tetsuo× Rodriguezlafrasse, Claire |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Although conventional radiotherapy promotes the migration/invasion of cancer stem cells (CSCs) under normoxia, carbon ion (C-ion) irradiation actually decreases these processes. Unraveling the mechanisms of this discrepancy, particularly under the hypoxic conditions that pertain in niches where CSCs are preferentially localized, would provide a better understanding of the origins of metastases. Invasion/migration, proteins involved in epithelial-to-mesenchymal transition (EMT), and expression of MMP-2 and HIF-1α were quantified in the CSC subpopulations of two head-and-neck squamous cell carcinoma (HNSCC) cell lines irradiated with X-rays or C-ions. X-rays triggered HNSCC-CSC migration/invasion under normoxia, however this effect was significantly attenuated under hypoxia. C-ions induced fewer of these processes in both oxygenation conditions. The differential response to C-ions was associated with a lack of HIF-1α stabilization, MMP-2 expression, or activation of kinases of the main EMT signaling pathways. Furthermore, we demonstrated a major role of reactive oxygen species (ROS) in the triggering of invasion/migration in response to X-rays. Monte-Carlo simulations demonstrated that HO・ radicals are quantitatively higher after C-ions than after X-rays, however they are very differently distributed within cells. We postulate that the uniform distribution of ROS after X-rays induces the mechanisms leading to invasion/migration, which ROS concentrated in C-ion tracks are unable to trigger. | |||||
書誌情報 |
Cancers 巻 11, 号 468, 発行日 2019-04 |
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出版者 | ||||||
出版者 | MDPI | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2072-6694 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.3390/cancers11040468 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521340/ |