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第44卷第11期         金   霄,陈晓林,姚 静,等. 结核分枝杆菌Rv2647蛋白对肺组织损伤效应的初步研究[J].
                 2024年11月                    南京医科大学学报(自然科学版),2024,44(11):1517-1524                      ·1523 ·


                 A                                                                        B
                            Control                  Ms                  Ms::Rv2647           100
                                                                                               80
                                                                                             (%)  60   *
                                                                                             Lung injury  40



                                                                                               20
                                                                                                0
                                                                                                    Ms  Ms::Rv2647
                                                                                                            7
                   A:The HE staining of lung tissues were observed under microscope 30 days after tracheal infection with the Ms and Ms::Rv2647(1×10 CFU/
                mouse)in C57BL/6 mice(scale bar=100 μm).B:Comparison of lung tissue inflammation area(%)7 days after tracheal infection with the Ms and Ms::
                         7
                                              *
                Rv2647(1×10 CFU/mouse)in C57BL/6 mice. P < 0.05(n=3).
                                                  图10 感染Ms后模型鼠肺组织损伤
                                          Figure 10 Lung injury of model mice infected with Ms


                型 噬 菌 体 元 件 的 穿 梭 质 粒 phAE159,构 建 了              [3] BEHR M A,WILSON M A,GILL W P,et al. Comparative
                phAE159⁃ΔRv2647 噬菌粒,在 Ms 内扩增后导入                        genomics of BCG vaccines by whole⁃genome DNA micro⁃
                H37Rv,获 得 H37RvΔRv2647,并 进 一 步 构 建                     array[J]. Science,1999,284(5419):1520-1523
                                                                 [4] YANG W,LIU M,YU X,et al. Mycobacterium tuberculosis
                H37RvΔRv2647::Rv2647和Ms::Rv2647,为深入研
                究Rv2647基因的功能奠定了基础。                                    Rv1515c antigen enhances survival of M. smegmatis with⁃
                                                                      in macrophages by disrupting the host defense[J]. Microb
                    本 研 究 中 分 别 以 H37Rv、H37RvΔRv2647、
                                                                      Pathog,2021,153:104778
                H37RvΔRv2647::Rv2647、Ms 及 Ms::Rv2647 经气
                                                                 [5] BESPIATYKH D,BESPYATYKH J,MOKROUSOV I,et
                管攻击C57BL/6小鼠,H37RvΔRv2647组模型鼠30 d                      al. A comprehensive map of Mycobacterium tuberculosis
                生存率高于 H37Rv 组和 H37RvΔRv2647::Rv2647                    comphlex regions of difference[J]. mSphere,2021,6(4):
                组;Ms 组模型鼠 7 d 生存率也高于 Ms::Rv2647 组;                     e0053521
                H37RvΔRv2647组模型鼠的肺组织细菌负荷和肺组                      [6] BASHIRI G,BAKER E N. Production of recombinant pro⁃
                织 病 理 损 伤 程 度 均 显 著 低 于 H37Rv 组 和                      teins in Mycobacterium smegmatis for structural and func⁃
                H37RvΔRv2647::Rv2647 组;同样地,Ms 组模型鼠                     tional studies[J]. Protein Sci,2015,24(1):1-10
                的肺组织细菌负荷和肺组织病理损伤程度亦显著                            [7] YAO J,DU X R,CHEN S X,et al. Rv2346c enhances my⁃
                                                                       cobacterial survival within macrophages by inhibiting TNF
                低于 Ms::Rv2647 组。本研究提示,Rv2647 蛋白在
                                                                       ⁃α and IL⁃6 production via the p38/miRNA/NF⁃κB path⁃
                M. tb 感染的致病过程中可能通过削弱模型鼠对
                                                                       way[J]. Emerg Microbes Infect,2018,7(1):158
                M. tb的清除效应而加重了肺组织的病理损伤,其具
                                                                 [8] ARORA S K,NAQVI N,ALAM A,et al. Mycobacterium
                体致病机制值得进一步探究。                                          smegmatis bacteria expressing Mycobacterium tuberculosis
                    本研究成功构建了M. tb的Rv2647基因敲除株                          ⁃ specific Rv1954A induce macrophage activation and
               (H37RvΔRv2647)和 回 补 株(H37RvΔRv2647::                    modulate the immune response[J]. Front Cell Infect Mi⁃
                Rv2647)以及过表达 Rv2647 的 Ms(Ms::Rv2647);                  crobiol,2020,10:564565
                初步探明了 Rv2647 蛋白可能通过抑制模型鼠对                        [9] GONG W P,LIANG Y,MI J,et al. Peptides⁃based vac⁃
                M. tb的清除,加重肺组织病理损伤。                                    cine MP3RT induced protective immunity against Myco⁃
                                                                       bacterium tuberculosis infection in a humanized mouse
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