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Hepatitis B virus X protein promotes liver cell proliferation via a positive cascade loop involving arachidonic acid metabolism and p-ERK1/2

机译:乙型肝炎病毒X蛋白通过涉及花生四烯酸代谢和p-ERK1 / 2的正级联环促进肝细胞增殖

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摘要

肝炎 B 病毒 X 蛋白质(HBx ) 在 hepatocellular 癌的发展起一个关键作用。这里,我们寻求了识别 HBx 由调停的机制肝房间增长。我们发现那 HBx upregulated cyclooxygenase-2 (COX-2 ) 的层次, 5-lipoxygenase (5 哈鱼) 和 phosphorylated 在肝房间的细胞外的调整信号的蛋白质 kinases 1/2 (p-ERK1/2 ) 。导致 HBx 的 p-ERK1/2 被 Gi/o 蛋白质,艇长或哈鱼的抑制废除。另外, HBx 增加了前列腺素 E2 (PGE2 ) 的数量,免除房间线的 leukotriene B4 (LTB4 ) 源于 hepatocytes。而且,这些释放 arachidonic 酸代谢物能激活 ERK1/2。有趣地,激活 ERK1/2 能 upregulate 以一种积极反馈方式的 COX-2 和 5 哈鱼的表示。在结论, HBx 经由包含 COX-2, 5 哈鱼,释放 arachidonic 酸代谢物, Gi/o 蛋白质和 p-ERK1/2 的一个积极反馈环提高并且维持肝房间增长。

著录项

  • 来源
    《细胞研究(英文版)》 |2010年第5期|563-575|共13页
  • 作者单位

    Department of Cancer Research, Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Institute For Molecular Biology, College of Life Sciences, Nankai University, Tianjin 300071, China;

    Department of Cancer Research, Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Institute For Molecular Biology, College of Life Sciences, Nankai University, Tianjin 300071, China;

    Department of Cancer Research, Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Institute For Molecular Biology, College of Life Sciences, Nankai University, Tianjin 300071, China;

    Department of Biochemistry, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China;

    Department of Cancer Research, Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Institute For Molecular Biology, College of Life Sciences, Nankai University, Tianjin 300071, China;

    Department of Cancer Research, Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Institute For Molecular Biology, College of Life Sciences, Nankai University, Tianjin 300071, China;

    Department of Biochemistry, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China;

    Department of Biochemistry, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China;

    Department of Cancer Research, Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Institute For Molecular Biology, College of Life Sciences, Nankai University, Tianjin 300071, China;

  • 收录信息 中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
  • 原文格式 PDF
  • 正文语种 chi
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