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논문 기본 정보

자료유형
학술저널
저자정보
Zhang, Yong (Department of Respiratory Medicine, West China Hospital of Sichuan University) Ni, Huan-Juan (Department of Emergency, Affiliated Hospital of Panzhihua University) Cheng, De-Yun (Department of Respiratory Medicine, West China Hospital of Sichuan University)
저널정보
아시아태평양암예방학회 Asian Pacific journal of cancer prevention : APJCP Asian Pacific journal of cancer prevention : APJCP 제14권 제6호
발행연도
2013.1
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3,725 - 3,728 (4page)

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Background: The mammalian target of rapamycin (mTOR) /RPS6KB1 activation has recently been implicated in tumour development, but its role in lung cancer remains unclear. The aim of this study was to explore the role of mTOR/RPS6KB1 signaling pathway in non-small-cell lung cancer (NSCLC). Methods: Immunohistochemistry was performed to assess the expression of phosphorylated mammalian target of rapamycin (p-mTOR) and its downstream ribosomal phosphorylated RPS6KB1 (p-RPS6KB1) in NSCLC patients. We also analyzed p-mTOR/p-RPS6KB1 protein expression in 45 fresh NSCLC tissues using Western blotting. Results: The expression level of p-mTOR and p-RPS6KB1 was significantly higher in NSCLC tumor specimens than that in adjacent noncancerous normal lung tissues (P<0.01). p-mTOR expression correlated with p-RPS6KB1. Furthermore, high expression level of p-mTOR or p-RPS6KB1 in NSCLC was associated with a shorter overall survival (both P<0.01). Multivariate analysis indicated high level of p-mTOR expression was an independent prognostic factor (HR=2.642, 95%CI 1.157-4.904, p=0.002). Conclusions: p-mTOR and p-RPS6KB1 could be useful prognostic markers for NSCLC.

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