Catalase-peroxidase activity has no influence on virulence in a murine model of tuberculosis

被引:15
作者
Cardona, PJ
Gordillo, S
Amat, I
Díaz, J
Lonca, J
Vilaplana, C
Pallarés, A
Llatjós, R
Ariza, A
Ausina, V
机构
[1] Univ Autonoma Barcelona, Unitat TB Expt, Dept Microbiol, Hosp Germans Trias & Pujol, Badalona 08916, Catalonia, Spain
[2] Univ Autonoma Barcelona, Hosp Germans Trias & Pujol, Dept Pathol, Badalona 08916, Catalonia, Spain
关键词
tuberculosis; murine model; virulence; catalase-peroxidase; isoniazid;
D O I
10.1016/S1472-9792(03)00056-8
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
The capacity to generate a chronic and persistent infection in the experimental murine model of tuberculosis induced aerogenically by a low-dose inoculum was determined in eight isoniazid-resistant clinical strains of Mycobacterium tuberculosis showing different catalase-peroxidase (C-P) activities. Determination of bacillary concentration in lung and spleen and the percentage of pulmonary parenchyma occupied by granulomas were monitored. Data showed no relation between the lack of C-P activity and the ability to develop a persistent infection, highlighting the potential of C-P negative strains to spread through the community. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:351 / 359
页数:9
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