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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/8377


    Title: Tid1 functions as a tumour suppressor in head and neck squamous cell carcinoma
    Authors: Chen, CY;Chen, Chi-Yuan;Chiou, SH;Chiou, Shih-Hwa;Huang, CY;Huang, Chih-Yang;Jan, CI;Jan, Chia-Ing;Lin, SC;Lin, Shu-Chun;Hu, WY;Hu, Wen-Yuan;Chou, SH;Chou, Shiu-Huey;Liu, CJ;Liu, Chung-Ji;Lo, JF;Lo, Jeng-Fan
    Contributors: 保健系
    Keywords: Tid1;head and neck cancer;EGFR;AKT;tumour suppressor
    Date: 2009-11
    Issue Date: 2010-03-26 10:46:14 (UTC+8)
    Publisher: Asia University
    Abstract: Human tumourous imaginal disc (Tid1), a human homologue of the Drosophila tumour suppressor protein Tid56, is involved in multiple intracellular signalling pathways such as apoptosis, cell proliferation, and cell survival. Here, we investigated the anti-tumourigenic activity of Tid1 in head and neck squamous cell carcinoma (HNSCC) in vitro and in vivo. Firstly, the clinical association between Tid1 expression and progression of HNSCC was explored. It was found that expression of Tid1 was negatively associated with tumour status, recurrence, and survival prognosis using immunohistochemical analysis of primary HNSCC patient tumour tissue. Secondly, ectopic expression of Tid1 in HNSCC cells was shown to significantly inhibit cell proliferation, migration, invasion, anchorage-independent growth, and xenotransplantation tumourigenicity. Thirdly, we showed that overexpression of Tid1 attenuated EGFR activity and blocked the activation of AKT in HNSCC cells, which are known to be involved in the regulation of survival in HNSCC cells. On the other hand, ectopic expression of constitutively active AKT greatly reduced apoptosis induced by Tid1 overexpression. Together, these findings suggest that Tid1 functions as a tumour suppressor in HNSCC tumourigenesis. Copyright (C) 2009 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
    Relation: JOURNAL OF PATHOLOGY, 219(3):347-355.
    Appears in Collections:[食品營養與保健生技學系] 期刊論文

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