- 现金
- 62111 元
- 精华
- 26
- 帖子
- 30441
- 注册时间
- 2009-10-5
- 最后登录
- 2022-12-28
|
本帖最后由 StephenW 于 2015-3-15 21:51 编辑
回复 HBVCURER 的帖子
HBV不能感染老鼠,并不仅仅是因为缺少正确的受体,还缺少了另一个(或几个)重要的因子,而这些因子目前还不为人知。当然NTCP的发现已经在这个方向上迈出了重要的一步了。
当李文辉发现NTCP, 他还创建了可感染HBV小鼠模型.但是这些模型是不完美的 - 研究表明,它们允许乙肝病毒进入, 但进入后有问题. 我们的版主Bigben446是这方面的专家,他有所有的细节)
Cell Mol Immunol. 2014 Mar;11(2):175-83. doi: 10.1038/cmi.2013.66. Epub 2014 Feb 10.
HBV life cycle is restricted in mouse hepatocytes expressing human NTCP.
Li H1, Zhuang Q1, Wang Y2, Zhang T3, Zhao J3, Zhang Y3, Zhang J3, Lin Y4, Yuan Q3, Xia N3, Han J1.
Author information
1State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, and School of Life Sciences, Xiamen University, Xiamen 361005, China.
21] State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, and School of Life Sciences, Xiamen University, Xiamen 361005, China [2] School of Chemical Engineering, Huaqiao University, Xiamen 361005, China.
3National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Public Health, Xiamen University, Xiamen 361005, China.
4School of Chemical Engineering, Huaqiao University, Xiamen 361005, China.
Abstract
Recent studies have revealed that human sodium taurocholate cotransporting polypeptide (SLC10A1 or NTCP) is a functional cellular receptor for hepatitis B virus (HBV). However, whether human NTCP can support HBV infection in mouse hepatocyte cell lines has not been clarified. Because an HBV-permissible mouse model would be helpful for the study of HBV pathogenesis, it is necessary to investigate whether human NTCP supports the susceptibility of mouse hepatocyte cell lines to HBV. The results show that exogenous human NTCP expression can render non-susceptible HepG2 (human), Huh7 (human), Hepa1-6 (mouse), AML-12 (mouse) cell lines and primary mouse hepatocyte (PMH) cells susceptible to hepatitis D virus (HDV) which employs HBV envelope proteins. However, human NTCP could only introduce HBV susceptibility in human-derived HepG2 and Huh7 cells, but not in mouse-derived Hepa1-6, AML-12 or PMH cells. These data suggest that although human NTCP is a functional receptor that mediates HBV infection in human cells, it cannot support HBV infection in mouse hepatocytes. Our study indicated that the restriction of HBV in mouse hepatocytes likely occurs after viral entry but prior to viral transcription. We have excluded the role of mouse hepatocyte nuclear factors in the restriction of the HBV life cycle and showed that knockdown or inhibition of Sting, TBK1, IRF3 or IRF7, the components of the anti-viral signaling pathways, had no effect on HBV infection in mouse hepatocytes. Therefore, murine restriction factors that limit HBV infection need to be identified before a HBV-permissible mouse line can be created.
细胞与分子免疫学。 2014年3月; 11(2):175-83。 DOI:10.1038 / cmi.2013.66。 EPUB 2014年2月10日。
乙肝病毒的生命周期仅限于表达人NTCP小鼠肝细胞。
李H1,庄Q1,王Y2,张T3,赵J3,张Y3,张J3,林Y4,袁Q3,夏N3,韩J1。
作者信息
细胞应激生物学厦门大学国家重点实验室,创新中心为细胞生物学和生命科学学院,厦门361005,中国。
21]细胞应激生物学厦门大学国家重点实验室,创新中心细胞生物学和生命科学学院,厦门361005,中国[2]化学工程,华侨大学,厦门361005,中国的学校。
诊断厦门大学3National研究所和疫苗开发中的传染病,公共卫生学院,厦门361005,中国。
学校工程化学工程,华侨大学,厦门361005,中国的。
抽象
最近的研究显示,人类牛磺胆酸钠cotransporting多肽(SLC10A1或NTCP)是乙型肝炎病毒(HBV)的官能细胞受体。然而,人NTCP是否可以支持HBV感染小鼠肝细胞系尚未阐明。因为乙肝病毒容许小鼠模型将是乙肝发病机理的研究,有帮助的,这是必要的,调查人NTCP是否支持的小鼠肝细胞系对乙肝病毒的易感性。结果表明,外源人NTCP表达可以呈现非敏感的HepG2(人),的Huh7(人),Hepa1-6(小鼠),AML-12(小鼠)细胞系和原代小鼠肝细胞(PMH)细胞易受丁型肝炎病毒(HDV),它采用的HBV包膜蛋白。然而,人NTCP只能引入HBV易感性人衍生的HepG2和Huh7细胞,但不是在小鼠衍生Hepa1-6,AML-12或PMH细胞。这些数据表明,尽管人NTCP是一个功能性受体介导HBV感染在人类细胞中,它不能支持HBV感染小鼠肝细胞。我们的研究表明,乙肝病毒的小鼠肝细胞的限制病毒进入,但前病毒的转录后可能发生。我们已排除的小鼠肝细胞核因子的作用,在HBV生命周期的限制,并表明,击倒或抑制斯汀,TBK1,IRF3或IRF7,抗病毒的信号通路的组成部分,对已经在对HBV感染无影响小鼠肝细胞。因此,需要可以创建一个HBV-允许的鼠标线之前确定,限制乙肝病毒感染小鼠制约因素
|
|