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Attenuated Lung Fibrosis in Interleukin 6 Knock-out Mice after C-ion Irradiation to Lung
https://repo.qst.go.jp/records/46162
https://repo.qst.go.jp/records/461623e261700-77f9-4695-9c34-a187d751321b
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2011-08-17 | |||||
タイトル | ||||||
タイトル | Attenuated Lung Fibrosis in Interleukin 6 Knock-out Mice after C-ion Irradiation to Lung | |||||
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 |
Saito-Fujita, Tomoko
× Saito-Fujita, Tomoko× Iwakawa, Mayumi× Nakamura, Etsuko× Nakawatari, Miyako× Fujita, Hidetoshi× Moritake, Takashi× Imai, Takashi× 藤田 知子× 岩川 眞由美× 中村 悦子× 中渡 美也子× 藤田 英俊× 盛武 敬× 今井 高志 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | There is a great deal of evidence that a cyclic cascade of inflammatory cytokines, together with the activation of macrophages, is initiated very early after irradiation to develop lung fibrosis in a late phase. To understand the persistent effects of cytokines, the cytokine gene of knock out or transgenic mouse is one of the useful tools. In this study, we evaluated a role of a key molecule, interleukin-6 (IL-6), in the late-phase inflammatory response and subsequent fibrotic changes after irradiation using wild-type (WT) and IL-6 knock out (IL-6 KO) mice. The mice underwent thoracic irradiation with 10 Gy of C-ion beam or sham-irradiation and were examined by histology. Immunoreactivity for IL-6 was induced at the site of bronchiolar epithelium, in pneumocytes and in monocytes by C-ion irradiation. At 24 weeks after irradiation, the infiltration of macrophages, detected by positive immunohistological staining with Mac3 antibody, was observed in alveolar spaces both in WT and IL-6 KO mice. The thickening of bronchiolar and alveolar walls exhibited in WT mice, but not KO mice, and fibrotic changes detected by Masson-Trichrome staining, were observed only in the lungs of WT mice, while it was attenuated in IL-6 KO mice. These results indicated that IL-6 might not be essential for activating macrophages in the late phase, but plays an important role for fibrotic changes of the alveolar wall after irradiation. | |||||
書誌情報 |
Journal of Radiation Research 巻 52, 号 3, p. 270-277, 発行日 2011-05 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0449-3060 |