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Sorafenib, a multikinase inhibitor of the RAF/MEK/ERK pathway, is a molecular-targeted drug that is approved for hepatocellular carcinoma (HCC) but not for CCC. The differences in signaling pathway characteristics under sorafenib treatment between HCC (HLF, Huh7, PLC/PRF/5) and CCC (RBE, YSCCC, Huh28) cell lines were therefore investigated using cell proliferation, western blotting, and apoptosis analyses. Sorafenib inhibited cell growth significantly less in CCC cells than in HCC cells, with lower suppression of ERK phosphorylation. Significantly decreased AKT Ser473 phosphorylation in HCC cells, and conversely enhanced phosphorylation of AKT Ser473 and mTORC2 in CCC cells, were observed with sorafenib treatment. Disassembly of the mTORC2 complex in RBE cells with siRNA targeting Rictor resulted in the downregulation of AKT Ser473 phosphorylation and enhanced apoptosis presumably via increased FOXO1, which consequently suppressed RBE cell proliferation. 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Survival pathway of cholangiocarcinoma via AKT/mTOR signaling to escape RAF/MEK/ERK pathway inhibition by sorafenib(胆管癌におけるソラフェニブによるRAF/MEK/ERK抑制機序からのAKT/mTOR シグナル伝達を介した細胞死回避機序)
http://hdl.handle.net/10091/00020733
fb8aa8a5-4403-4203-878c-ebfe391dc797
名前 / ファイル | ライセンス | アクション | |
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Item type | 学位論文 / Thesis or Dissertation(1) | |||||
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公開日 | 2018-06-28 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Survival pathway of cholangiocarcinoma via AKT/mTOR signaling to escape RAF/MEK/ERK pathway inhibition by sorafenib(胆管癌におけるソラフェニブによるRAF/MEK/ERK抑制機序からのAKT/mTOR シグナル伝達を介した細胞死回避機序) | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_db06 | |||||
タイプ | doctoral thesis | |||||
著者 |
横井, 謙太
× 横井, 謙太 |
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出版者 | ||||||
出版者 | 信州大学 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 横井 謙太. Survival pathway of cholangiocarcinoma via AKT/mTOR signaling to escape RAF/MEK/ERK pathway inhibition by sorafenib(胆管癌におけるソラフェニブによるRAF/MEK/ERK抑制機序からのAKT/mTOR シグナル伝達を介した細胞死回避機序). 信州大学, 2018, 博士論文. | |||||
書誌情報 |
発行日 2018-03-31 |
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学位授与番号 | ||||||
学位授与番号 | 13601甲第1128号 | |||||
学位授与年月日 | ||||||
学位授与年月日 | 2018-03-31 | |||||
学位名 | ||||||
学位名 | 博士(医学) | |||||
学位授与機関 | ||||||
学位授与機関名 | ||||||
学位授与機関名 | 信州大学(Shinshu university) | |||||
学位の区分 | ||||||
Doctoral | ||||||
学位の分野 | ||||||
医学 | ||||||
学位の報告番号 | ||||||
甲第1128号 | ||||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 雑誌に発表。ONCOLOGY REPORTS. 39(2):843-850 (2018); doi:10.3892/or.2017.6153. | |||||
資源タイプ(コンテンツの種類) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Thesis | |||||
DOI | ||||||
関連識別子 | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.3892/or.2017.6153 | |||||
関連名称 | ||||||
関連名称 | 10.3892/or.2017.6153 | |||||
出版タイプ | ||||||
出版タイプ | NA | |||||
出版タイプResource | http://purl.org/coar/version/c_be7fb7dd8ff6fe43 | |||||
WoS | ||||||
Web of Science | ||||||
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