Published 2006-06-15
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Mycobacterium tuberculosisESAT-6 antigen immunogenicity in Owl Monkeys

DOI: https://doi.org/10.22490/24629448.344
Rosalba Alfonso Molecular Biology Department, Fundación Instituto de Inmunología de Colombia Universidad Nacional de Colombia
Paola Barato Molecular Biology Department, Fundación Instituto de Inmunología de Colombia Universidad Nacional de Colombia
Martha Calderon Molecular Biology Department, Fundación Instituto de Inmunología de Colombia Universidad Nacional de Colombia
Diana Giraldo Molecular Biology Department, Fundación Instituto de Inmunología de Colombia Universidad Nacional de Colombia
Martha Pinto Molecular Biology Department, Fundación Instituto de Inmunología de Colombia Universidad Nacional de Colombia
Carlos Parra-López Molecular Biology Department, Fundación Instituto de Inmunología de Colombia Universidad Nacional de Colombia
Manuel A. Patarroyo. Molecular Biology Department, Fundación Instituto de Inmunología de Colombia Universidad Nacional de Colombia
Several ESAT-6-based vaccines have been widely studied in different animal models, presenting potent ability to induce both cellular and humoral responses. As ESAT-6 is a well-characterized mycobacterial antigen, its capacity to induce immune responses in a nonhuman primate model has been evaluated. The immunization of recombinant ESAT-6 (rESAT-6) in Aotus nancymaae monkeys has elicited a strong cellular response, not just to rESAT-6, but also to the native protein present in Mycobacterium tuberculosis culture filtrate proteins measured as [3H]thymidine incorporation in lymphocyte proliferation assays. High humoral response was also observed, having antibody titers of 1:12,800 directed towards rESAT-6. The protein.s multi-epitope nature was further demonstrated since several peptide sequences were specifically recognized at both cellular and humoral level. The high immunogenicity observed, as well as the relatively high characterization of the Aotus. immune system at molecular level, are two advantage to propose Aotus nancymaae as animal model for studying M. tuberculosis infection; however, our results reveal an animal-to-animal variation in response to vaccination, this could be a disadvantage
keywords: Owl monkey, animal model, Mycobacterium tuberculosis ESAT-6, immune response.
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How to Cite
Alfonso, R., Barato, P., Calderon, M., Giraldo, D., Pinto, M., Parra-López, C., & Patarroyo., M. A. (2006). Mycobacterium tuberculosisESAT-6 antigen immunogenicity in Owl Monkeys. NOVA Biomedical Sciences Journal, 4(5), 14-26. https://doi.org/10.22490/24629448.344
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