期刊
INFECTION AND IMMUNITY
卷 76, 期 2, 页码 717-725出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/IAI.00974-07
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资金
- NHLBI NIH HHS [R01 HL068513, HL-68513] Funding Source: Medline
- NIAID NIH HHS [AI-44856, R01 AI044856, R56 AI044856] Funding Source: Medline
During lung infection, Mycobacterium tuberculosis resides in macrophages and subverts the bactericidal mechanisms of these professional phagocytes. Comprehension of this host-pathogen relationship is fundamental for the development of new therapies to cure and prevent tuberculosis. In this work, we analyzed the transcriptional profile of M. tuberculosis infecting human macrophage-like THP-1 cells in order to identify putative bacterial pathogenic factors that can be relevant for the intracellular survival of M. tuberculosis. We compared the gene expression profile of M. tuberculosis H37Rv after 4 h and 24 h of infection of human macrophage-like THP-1 cells with the gene expression profile of the strain growing exponentially in broth cultures. We found 585 genes expressed differentially by intracellular M. tuberculosis. An analysis of the gene expression profile of M. tuberculosis inside THP-1 cells suggests the perturbation of the cell envelope as a major intracellular stress inside THP-1 macrophages.
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