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Effect of low- and high-linear energy transfer radiation on in vitro and orthotopic in vivo models of osteosarcoma by activation of caspase-3 and -9.
https://repo.qst.go.jp/records/49574
https://repo.qst.go.jp/records/49574700347bf-62a0-41c0-bbe0-fd2917e3023b
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-02-07 | |||||
タイトル | ||||||
タイトル | Effect of low- and high-linear energy transfer radiation on in vitro and orthotopic in vivo models of osteosarcoma by activation of caspase-3 and -9. | |||||
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 |
Ho Kim, Eun
× Ho Kim, Eun× Mi-Sook, Kim× Kyung-Hee, Lee× Sai, Sei× Kyoung Jeong, Youn× Jae-Soo, Koh× Chang-Bae, Kong× Ho Kim, Eun× Sai, Sei |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Osteosarcoma (OS) is a malignant tumor of the bone derived from primitive transformed cells of the mesenchymal origin. Local low-linear energy transfer (LET) radiotherapy has limited benefits on OS owing to its radioresistance. Thus, this study aimed to investigate the effects of high-LET radiation on human OS. Therefore, the human OS cell lines, U2O2 and KHOS/NP, were examined in vitro, or an orthotopic mouse xenograft model was studied in vivo after treatment with low-LET (gamma-ray) and high-LET (neutron) radiation. Notably, OS cells were significantly more sensitive to high-LET radiation in vitro and in the orthotopic xenograft tumor model. Specifically, neutron radiation treatment increased the relative percentage of apoptotic sub-G1 phase cells via caspase-3/9 activation; increased intracellular reactive oxygen species, autophagy, and DNA damage; and decreased invasion and migration. Similarly, the mean size of gamma-irradiated (8 Gy) orthotopic KHOS/NP OS was 195 mm3 at 6 weeks after gamma-irradiation (8 Gy), but it was only 150 mm3 in mice treated with high-LET neutron radiotherapy. Significantly, our results provide a rationale for the use of high-LET radiotherapy to treat patients with OS. | |||||
書誌情報 |
International journal of oncology 巻 51, 号 4, p. 1124-1134, 発行日 2017-10 |
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出版者 | ||||||
出版者 | D.A. Spandidos | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1019-6439 | |||||
PubMed番号 | ||||||
識別子タイプ | PMID | |||||
関連識別子 | 28849129 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.3892/ijo.2017.4102 |