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首页> 外文期刊>International immunopharmacology >Mce-associated protein Rv0177 alters the cell wall structure of Mycobacterium smegmatis and promotes macrophage apoptosis via regulating the cytokines
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Mce-associated protein Rv0177 alters the cell wall structure of Mycobacterium smegmatis and promotes macrophage apoptosis via regulating the cytokines

机译:MCE-相关的蛋白质RV0177改变了分枝杆菌的细胞壁结构,通过调节细胞因子来促进巨噬细胞凋亡

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摘要

The success of Mycobacterium tuberculosis as a pathogen largely contributes to its ability to infect, modify and persist within the host cells. M. tuberculosis Rv0177 is a gene of the mce1 operon (Mammalian cell entry), encoding a conserved hypothetical protein, essential for M. tuberculosis survival and up-regulated within murine macrophages. To explore its function, Rv0177 was heterologously expressed in M. smegmatis. The recombinant protein was located in the cell wall. M. smegmatis recombinant strain expressing Rv0177 altered sliding motility, its cell wall architecture and the permeability. Moreover, M. smegmatis expressing Rv0177 could up-regulate MCP-1 and downregulate the IL-6 expression in RAW264.7 macrophages in comparison to the control. MS_Rv0177 increased the expression of MCP-1 inducible protein (MCPIP) and a C/EBP homologous protein (CHOP) owing to MCP-1. In addition, the JNK signaling pathway was engaged in the interplay between MS_Rv0177 and macrophages. The macrophage caspase-3 activation and cell apoptosis were induced by the recombinant. This provided novel functional cues for the MCE-associated Rv0177.
机译:结核分枝杆菌作为病原体的成功主要有助于其在宿主细胞内感染,修饰和持续存在的能力。 M.Tuberculosis RV0177是MCE1操纵子(哺乳动物细胞入学)的基因,编码保守的假设蛋白,对丘疹的结核病生存和上调在鼠巨噬细胞中必需。为了探索其功能,RV0177在M. Smogmatis中异常表达。重组蛋白位于细胞壁中。 M.表达RV0177的Smogmatis重组菌株改变了滑动运动,其细胞壁架构和渗透性。此外,表达RV0177的M. Smogmatis可以上调MCP-1并与对照相比,在Raw264.7巨噬细胞中下调IL-6表达。 MS_RV0177由于MCP-1增加了MCP-1诱导蛋白(MCPIP)和C / EBP同源蛋白(CHOP)的表达。此外,JNK信令路径始终处于MS_RV0177和巨噬细胞之间的相互作用。通过重组诱导巨噬细胞caspase-3活化和细胞凋亡。这为MCE相关的RV0177提供了新的功能性提示。

著录项

  • 来源
    《International immunopharmacology》 |2019年第2019期|共10页
  • 作者单位

    Southwest Univ State Key Lab Breeding Base Ecoenvironm &

    Bioreso Minit Educ Ecoenvironm Three;

    Southwest Univ State Key Lab Breeding Base Ecoenvironm &

    Bioreso Minit Educ Ecoenvironm Three;

    Southwest Univ State Key Lab Breeding Base Ecoenvironm &

    Bioreso Minit Educ Ecoenvironm Three;

    Southwest Univ State Key Lab Breeding Base Ecoenvironm &

    Bioreso Minit Educ Ecoenvironm Three;

    Southwest Univ State Key Lab Breeding Base Ecoenvironm &

    Bioreso Minit Educ Ecoenvironm Three;

    Southwest Univ State Key Lab Breeding Base Ecoenvironm &

    Bioreso Minit Educ Ecoenvironm Three;

    Southwest Univ State Key Lab Breeding Base Ecoenvironm &

    Bioreso Minit Educ Ecoenvironm Three;

    Southwest Univ State Key Lab Breeding Base Ecoenvironm &

    Bioreso Minit Educ Ecoenvironm Three;

    Southwest Univ State Key Lab Breeding Base Ecoenvironm &

    Bioreso Minit Educ Ecoenvironm Three;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 药理学;
  • 关键词

    Mycobacterium tuberculosis; Rv0177; Cytokines; Apoptosis; Endoplasmic reticulum strees;

    机译:结核分枝杆菌;RV0177;细胞因子;细胞凋亡;内质网胁迫;

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