Detalhes bibliográficos
| Ano de defesa: |
2014 |
| Autor(a) principal: |
Alves, José Vitor Ferreira
 |
| Orientador(a): |
Dorta, Miriam Leandro
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| Banca de defesa: |
Dorta, Miriam Leandro,
Moraes, Sandra do Lago,
Dias, Fátima Ribeiro |
| Tipo de documento: |
Dissertação
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| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal de Goiás
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| Programa de Pós-Graduação: |
Programa de Pós-graduação em Medicina Tropical e Saúde Publica (IPTSP)
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| Departamento: |
Instituto de Patologia Tropical e Saúde Pública - IPTSP (RG)
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| País: |
Brasil
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| Palavras-chave em Português: |
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| Palavras-chave em Inglês: |
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| Área do conhecimento CNPq: |
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| Link de acesso: |
http://repositorio.bc.ufg.br/tede/handle/tede/4201
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Resumo: |
Leishmaniasis is a group of diseases with distinct clinical, histopathological and immunological characteristics, caused by parasites belonging to the Leishmania genus. The serological tests used until the moment have several limitations. There are a great interest to identify immunogenic proteins of Leishmania to be tested as potential antigens for the development of techniques for the diagnosis of American cutaneous leishmaniasis (ACL). The aim of this study was to produce and purify the recombinant proteins "Leishmania activated C kinase" (rLACK); "Thiol Specific Antioxidant" (TSA), "Leishmania elongation initiation factor" (LeIF) and "Leishmania braziliensis stress inducible protein 1" (LbSTI) to evaluate the antigenicity. The recombinant proteins were produced by recombinant DNA techniques as described by Salay et al. (2007). To perform the ELISA, L.(V.) braziliensis (MHOM/BR/1975/M2903) and L.(L.) amazonensis (IFLA/BR/67/PH8) species were cultivated and the antigenic extracts and recombinant proteins were used as antigens. Sixty serum samples from patients with ATL assisted at Anuar Auad hospital, Goiânia, Goiás, were assayed, and from them, 45 were from patients with localized cutaneous leishmaniasis (LCL) and 15 were from mucosal leishmaniasis (ML). To analyze the specificity of the response of total extract and the recombinant proteins, sera from patients with other pathologies were tested. The total extract of L. (L.) amazonensis, rLACK, rTSA, rLbSTI and rLeIF showed a sensitivity of 85%, 75%, 70%, 76.7% and 56.1% respectively. The specificity of total extract of L. (L.) amazonensis, rLACK, rTSA, rLbSTI, rLeIF were 72.5%, 80%, 60%, 30% and 62.5% respectively. Thus, these results showed that recombinants proteins and total extract of L. (L.) amazonensis were antigenic and the total extract of L. (L.) amazonensis and rLACK were the antigen that had the best sensibility and specificity. |
