期刊
JOURNAL OF INFECTIOUS DISEASES
卷 198, 期 12, 页码 1851-1855出版社
OXFORD UNIV PRESS INC
DOI: 10.1086/593175
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资金
- NHLBI NIH HHS [R01 HL064550-05, R01 HL064550, HL64550] Funding Source: Medline
- NIAID NIH HHS [R01 AI036396, AI36396, R01 AI036396-15] Funding Source: Medline
Although tuberculous granulomas, which are composed of infected macrophages and other immune cells, have long been considered impermeable structures, recent studies have shown that superinfecting Mycobacterium marinum traffic rapidly to established fish and frog granulomas by host-mediated and Mycobacterium-directed mechanisms. The present study shows that superinfecting Mycobacterium tuberculosis and Mycobacterium bovis bacille Calmette-Guerin similarly home to established granulomas in mice. Furthermore, 2 prominent mycobacterial virulence determinants, Erp and ESX-1, do not affect this cellular trafficking. These findings suggest that homing of infected macrophages to sites of infection is a general feature of the pathogenesis of tuberculosis and has important consequences for therapeutic strategies.
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