Journal
INTERNATIONAL JOURNAL OF MEDICAL MICROBIOLOGY
Volume 299, Issue 6, Pages 447-452Publisher
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.ijmm.2008.10.007
Keywords
BCG; Tuberculosis; 38 kDa; 16 kDa; Monoclonal antibody
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Funding
- UNU-BIOLAC
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition, Mexico
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Mycobacterium tuberculosis is a facultative intracellular pathogen for which cell-mediated immunity is considered the major component of the immune response. For many decades, the prevailing scientific view has been the antibodies have little or no role in modifying the course of M tuberculosis infection. In recent years, several studies have challenged this dogma, and there is a body of evidence that supports a role of antibodies against M tuberculosis. In the present work, we evaluated the protective activity of two monoclonal antibodies (TBA61 and TBA84). Here, we chose the intratracheal model of pulmonary infection to evaluate bacterial load and morphometric and histological changes in the lungs of treated mice. Data obtained revealed the reduction of bacterial load and milder morphometric and histopathological changes in mice treated with TBA61 at 21 days post-infection with M tuberculosis H37Rv compared to those treated with TBA84 and control mice. These results allow continuing exploring the potential use of monoclonal antibodies as prophylactic and therapeutic agents against intracellular pathogens such as M. tuberculosis. (C) 2008 Elsevier GmbH. All rights reserved.
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