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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
[参考文献]
model[J]. Front Immunol,2021,12:666290
[1] CHANDRA P,GRIGSBY S J,PHILIPS J A. Immune eva⁃ [10]DU X R,XUE J P,JIANG M Z,et al. A multiepitope pep⁃
sion and provocation by Mycobacterium tuberculosis[J]. tide,rOmp22,encapsulated in chitosan⁃PLGA nanoparti⁃
Nat Rev Microbiol,2022,20(12):750-766 cles as a candidate vaccine against acinetobacter bauman⁃
[2] FATIMA S,KUMARI A,DAS G,et al. Tuberculosis vac⁃ nii infection[J]. Int J Nanomedicine,2021,16:1819-1836
cine:a journey from BCG to present[J]. Life Sci,2020, [11]ORGEUR M,SOUS C,MADACKI J,et al. Evolution and
252:117594 emergence of Mycobacterium tuberculosis[J]. FEMS Mi⁃