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NDRG2通过调控CD24影响肝癌细胞侵袭能力的研究
引用本文:邱新毓,杨建栋,张毅,李燕,李成花,张兰慧,刘新平,郑瑾.NDRG2通过调控CD24影响肝癌细胞侵袭能力的研究[J].生物磁学,2014(9):1637-1640.
作者姓名:邱新毓  杨建栋  张毅  李燕  李成花  张兰慧  刘新平  郑瑾
作者单位:[1]第四军医大学2009级口腔医学系2队,陕西西安710032 [2]265547部队医院,辽宁海城114200 [3]第四军医大学唐都医院中医科暨中西医结合肿瘤科,陕西西安710038 [4]第四军医大学生物化学与分子生物学教研室,陕西西安710032 [5]解放军总医院中医院,北京100853
基金项目:基金项目:国家自然科学基金项目(81072973) 致谢:真诚感谢第四军医大学生物化学及分子生物学实验室主任:药立波教授.西京医院肿瘤中心主任:刘文超教授.感谢她们在实验平台、技术等多方面给予的指导和帮助.
摘    要:目的:阐明NDRG2(N-Myc downstream-regulated gene2)在肝癌细胞中对CD24的调控及其对乳腺癌细胞侵袭能力的影响。方法:Western blot检测低转移性的肝癌细胞Huh7、高转移性的肝癌细胞系MHCC97h及正常人肝细胞系L-02中NDRG2和CD24的表达;通过腺病毒载体上调MHCC97h细胞中NDRG2的水平,或利用siRNA下调Huh7细胞中NDRG2的表达,检测CD24的变化以及细胞侵袭能力的改变。结果:MHCC97h细胞中NDRG2基因和蛋白的表达水平低于Huh7细胞,而CD24的表达水平高于Huh7细胞;在MHCC97h细胞中上调NDRG2可以抑制CD24的表达并抑制其侵袭能力,而在Huh7细胞中下调NDRG2的表达可以提高CD24的水平及细胞的侵袭能力。结论:NDRG2可能通过影响CD24参与调控肝癌细胞的侵袭能力。

关 键 词:NDRG2  CD24  肝癌细胞  侵袭

NDRG2 Expression Regulates CD24 and Invasion ability of Hepatocellular carcinoma Cells
QIU Xin-yu,YANG Jian-dong,ZHANG Yi,LI Yan,LI Cheng-hua,ZHANG Lan-hui,LIU Xin-ping,ZHENG Jin.NDRG2 Expression Regulates CD24 and Invasion ability of Hepatocellular carcinoma Cells[J].Biomagnetism,2014(9):1637-1640.
Authors:QIU Xin-yu  YANG Jian-dong  ZHANG Yi  LI Yan  LI Cheng-hua  ZHANG Lan-hui  LIU Xin-ping  ZHENG Jin
Institution:1 2 team, 2009 level student of stomatology, Department of medical science, The Forth Military MedicM University, Xi'an, Shaanxi, 710032, China; 2 Liaoning 65547 Military Hospital of Haicheng, Haicheng, Liaoning, 114200, China; 3 Department of Integrated traditional and western medicine ofOncology, Tangdu Hospital, Xi'an, Shaanxi, 710038, China; 4 Department of Biochemistry and Molecular Biology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; 5 Traditional Chinese Medicine Hospital in the Chinese PLA General Hospital, Beijing, 100853, China)
Abstract:Objective: To explore the regulative role of N-Myc downstream-regulated gene 2 (NDRG2) on CD24 expression and the invasion ability of hepatocellular carcinoma cells. Methods: The mRNA and protein expressions of CD24 and NDRG2 in MHCC97H, Huh7 and L-02 cells were analyzed. Changes in cell invasion were detected when NDRG2 was up- or down-regulated by adenovirus or siRNA. The expression pattern of NDRG2 and CD24 in HCC cells and the relationship between NDRG2 and invision features were analyzed. Remits: NDRG2 expression was negatively correlated with malignancy in HCC. CD24 protein decreased when the hepatocellular cacinoma cell MHCC97H was infected by Ad-NDRG2. CD24 protein increased when the hepatocellular cacinoma cell Huh7 was transfected by siRNA-NDRG2. The up-regulation of NDRG2 decreased CD24 expression and cell invasion. By contrast, the down-regulation of NDRG2 enhanced CD24 expression and invasion. Conclusion: The results suggest that NDRG2 exerted anti-tumor activity by regulating CD24, which mediates that cell-cell interaction, tumor proliferation and adhesion.
Keywords:NDRG2  CD24  Hepatocellular carcinoma cell  Adhesion
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