Renhua Gong1, Dengqun Sun1, Xingguo Zhong1, Yanjun Sun1, Li Li2. 1. Depaetment of Surgery, Armed Police Hospital of Anhui Hefei 230000, China. 2. Department of Radiation Oncology, Armed Police Hospital of Shanghai Shanghai 201103, China.
Abstract
BACKGROUND: MEK1 is overexpressed in various human carcinomas, but the role of MEK1 is not well unknown in hepatocellular carcinoma (HCC). In the present study, we aimed to explore MEK1 expression of in HCC tissues, and to evaluate its relationship with clinical pathological features. METHODS: Expressions of MEK1 were detected by western blot assay, real-time quantitative PCR and immunohistochemical (IHC) staining in 30 HCC tissues and their adjacent normal tissues. Pearson Chi-square test was used to analyze the relationship between MEK1 expression and clinical pathological features. The survival curve was drawn by Kaplan-Meier method, and survival was analyzed by Lon-rank test. RESULTS: The expression of MEK1 mRNA in HCC tissues was significantly higher than that in adjacent normal tissues and so was the expression of MEK1 protein. In the 30 specimens, 70% was with Tumor/Normal ratio > 2, 10% with Tumor/Normal ratio < 1 and 20% with 1 < Tumor/Normal ratio < 2. The mean survival time in high MEK1 expression group was significantly lower than that in low MEK1 expression group (Log-rank value = 11.946, P < 0.01). CONCLUSION: MEK1 expressions in HCC tissues were significantly higher than that in adjacent normal tissues, which indicated that MEK1 was involved in the genesis and development of HCC. Moreover, it was closely related to the postoperative survival time of patients with HCC.
BACKGROUND:MEK1 is overexpressed in various humancarcinomas, but the role of MEK1 is not well unknown in hepatocellular carcinoma (HCC). In the present study, we aimed to explore MEK1 expression of in HCC tissues, and to evaluate its relationship with clinical pathological features. METHODS: Expressions of MEK1 were detected by western blot assay, real-time quantitative PCR and immunohistochemical (IHC) staining in 30 HCC tissues and their adjacent normal tissues. Pearson Chi-square test was used to analyze the relationship between MEK1 expression and clinical pathological features. The survival curve was drawn by Kaplan-Meier method, and survival was analyzed by Lon-rank test. RESULTS: The expression of MEK1 mRNA in HCC tissues was significantly higher than that in adjacent normal tissues and so was the expression of MEK1 protein. In the 30 specimens, 70% was with Tumor/Normal ratio > 2, 10% with Tumor/Normal ratio < 1 and 20% with 1 < Tumor/Normal ratio < 2. The mean survival time in high MEK1 expression group was significantly lower than that in low MEK1 expression group (Log-rank value = 11.946, P < 0.01). CONCLUSION:MEK1 expressions in HCC tissues were significantly higher than that in adjacent normal tissues, which indicated that MEK1 was involved in the genesis and development of HCC. Moreover, it was closely related to the postoperative survival time of patients with HCC.
Authors: Georgina V Long; Daniil Stroyakovskiy; Helen Gogas; Evgeny Levchenko; Filippo de Braud; James Larkin; Claus Garbe; Thomas Jouary; Axel Hauschild; Jean Jacques Grob; Vanna Chiarion Sileni; Celeste Lebbe; Mario Mandalà; Michael Millward; Ana Arance; Igor Bondarenko; John B A G Haanen; Johan Hansson; Jochen Utikal; Virginia Ferraresi; Nadezhda Kovalenko; Peter Mohr; Volodymyr Probachai; Dirk Schadendorf; Paul Nathan; Caroline Robert; Antoni Ribas; Douglas J DeMarini; Jhangir G Irani; Michelle Casey; Daniele Ouellet; Anne-Marie Martin; Ngocdiep Le; Kiran Patel; Keith Flaherty Journal: N Engl J Med Date: 2014-09-29 Impact factor: 91.245
Authors: M Biselli; F Conti; A Gramenzi; M Frigerio; A Cucchetti; G Fatti; M D'Angelo; M Dall'Agata; E G Giannini; F Farinati; F Ciccarese; P Andreone; M Bernardi; F Trevisani Journal: Br J Cancer Date: 2014-10-14 Impact factor: 7.640