WEKO3
アイテム
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We investigated about the radiation-induced ICAM-1 expression to elucidate the relative biological effectiveness (RBE) of carbon-ion beam to X-ray with or without an inhibitor of TGF-beta1 receptor kinase (SB431542).MATERIALS AND METHODS: Cell cultures of human umbilical vein endothelial cells (HUVEC) were irradiated with single doses of 1-10Gy of the 140 KV X-ray and 0.1-5.0Gy of 220MeV carbon-ion beams (108 keV/mum). Fluorescence-activated cell sorting analysis was used to quantify ICAM-1 expression at 24 and 48 hours after irradiation with or without SB431542.RESULTS: The expression of ICAM-1 was increased after X-ray and carbon-ion beam irradiations. The expression of ICAM-1 was significantly increased with the stimulation of TGF-beta1, and decreased significantly by addition of SB431542 after carbon-ion beam irradiation. The expression of ICAM-1 increased by 6 folds with carbon-ion beam irradiation of 0.1-5Gy as compared with untreated control cells, while X-ray irradiation increased by 2.3 folds. The ICAM-1 expression was about 3 times greater in carbon-ion beam irradiation than that in X-ray irradiation.CONCLUSION: The present results suggested that radiation-induced ICAM-1 expression on HUVEC was regulated by TGF-beta1. 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Effects of the heavy ion beam irradiation on the expression of ICAM-1 and TGF-beta1 on HUVEC
https://repo.qst.go.jp/records/69278
https://repo.qst.go.jp/records/69278ee3e4f88-8ae2-4f9e-9aaa-286a2f55c0f3
Item type | 会議発表用資料 / Presentation(1) | |||||
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公開日 | 2008-01-29 | |||||
タイトル | ||||||
タイトル | Effects of the heavy ion beam irradiation on the expression of ICAM-1 and TGF-beta1 on HUVEC | |||||
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 |
Kiyohara, Hiroki
× Kiyohara, Hiroki× Kato, Hiroyuki× Suzuki, Yoshiyuki× Nakano, Takashi× et.al× 清原 浩樹× 加藤 弘之× 鈴木 義行× 中野 隆史 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | PURPOSE: The adhesion of inflammatory cells to endothelial cells has been reported to be involved in radiation-induced fibrosis. In this process, intercellular adhesion molecule-1 (ICAM-1) and transforming growth factor-beta 1 (TGF-beta1) are suggested to play important roles. We investigated about the radiation-induced ICAM-1 expression to elucidate the relative biological effectiveness (RBE) of carbon-ion beam to X-ray with or without an inhibitor of TGF-beta1 receptor kinase (SB431542).MATERIALS AND METHODS: Cell cultures of human umbilical vein endothelial cells (HUVEC) were irradiated with single doses of 1-10Gy of the 140 KV X-ray and 0.1-5.0Gy of 220MeV carbon-ion beams (108 keV/mum). Fluorescence-activated cell sorting analysis was used to quantify ICAM-1 expression at 24 and 48 hours after irradiation with or without SB431542.RESULTS: The expression of ICAM-1 was increased after X-ray and carbon-ion beam irradiations. The expression of ICAM-1 was significantly increased with the stimulation of TGF-beta1, and decreased significantly by addition of SB431542 after carbon-ion beam irradiation. The expression of ICAM-1 increased by 6 folds with carbon-ion beam irradiation of 0.1-5Gy as compared with untreated control cells, while X-ray irradiation increased by 2.3 folds. The ICAM-1 expression was about 3 times greater in carbon-ion beam irradiation than that in X-ray irradiation.CONCLUSION: The present results suggested that radiation-induced ICAM-1 expression on HUVEC was regulated by TGF-beta1. The RBE of carbon-ion beam to X-ray was about 3 for the expression of ICAM-1. | |||||
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 | 日本放射線影響学会第50回大会 | |||||
発表年月日 | ||||||
日付 | 2007-11-17 | |||||
日付タイプ | Issued |