Induction of a protective response with an IgA monoclonal antibody against Mycobacterium tuberculosis 16kDa protein in a model of progressive pulmonary infection
| Autor: | Armando Acosta, Rogelio Hernández-Pando, Daniel Yero, Yamilé López, Diana Aguilar, Gustavo Falero-Diaz, Maria E. Sarmiento, Rosa L. Solis, Sergio Sifontes, Jorge A. Barrios, Nesty Olivares |
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| Rok vydání: | 2009 |
| Předmět: |
Microbiology (medical)
Tuberculosis medicine.drug_class Colony Count Microbial Monoclonal antibody Microbiology Mycobacterium tuberculosis Mice Immune system Immunity medicine Animals Lung Tuberculosis Pulmonary Pathogen Mice Inbred BALB C biology Intracellular parasite Antibodies Monoclonal General Medicine medicine.disease biology.organism_classification Antibodies Bacterial Immunoglobulin A Infectious Diseases Immunology biology.protein Female Antibody |
| Zdroj: | International Journal of Medical Microbiology. 299:447-452 |
| ISSN: | 1438-4221 |
| DOI: | 10.1016/j.ijmm.2008.10.007 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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