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dc.contributor.authorMachado, Amanda Sanchez-
dc.contributor.authorLage, Daniela Pagliara-
dc.contributor.authorVale, Danniele Luciana-
dc.contributor.authorFreitas, Camila Simões de-
dc.contributor.authorLinhares, Flávia Prata-
dc.contributor.authorCardoso, Jamille Mirelle de Oliveira-
dc.contributor.authorSilva, João Augusto Oliveira da-
dc.contributor.authorPereira, Isabela Amorim Gonçalves-
dc.contributor.authorRamos, Fernanda Fonseca-
dc.contributor.authorTavares, Grasiele de Sousa Vieira-
dc.contributor.authorRibeiro, Fernanda Ludolf-
dc.contributor.authorBandeira, Raquel Soares-
dc.contributor.authorMaia, Luiz Gustavo Nobre-
dc.contributor.authorSouza, Daniel Menezes-
dc.contributor.authorDuarte, Mariana Costa-
dc.contributor.authorChávez Fumagalli, Miguel Angel-
dc.contributor.authorRoatt, Bruno Mendes-
dc.contributor.authorChristodoulides, Myron-
dc.contributor.authorMartins, Vivian Tamietti-
dc.contributor.authorCoelho, Eduardo Antônio Ferraz-
dc.date.accessioned2023-10-31T20:18:40Z-
dc.date.available2023-10-31T20:18:40Z-
dc.date.issued2022pt_BR
dc.identifier.citationMACHADO, A. S. et al. Leishmania LiHyC protein is immunogenic and induces protection against visceral leishmaniasis. Parasite Immunology, v. 44, n. 8, artigo e12921, 2022. Disponível em: <https://onlinelibrary.wiley.com/doi/10.1111/pim.12921>. Acesso em: 01 ago. 2023.pt_BR
dc.identifier.issn1365-3024-
dc.identifier.urihttp://www.repositorio.ufop.br/jspui/handle/123456789/17700-
dc.description.abstractTreatment against visceral leishmaniasis (VL) presents problems by the toxicity of drugs, high cost and/or emergence of resistant strains. The diagnosis is hampered by variable sensitivity and/or specificity of tests. In this context, prophylactic vaccina- tion could represent a control measure against disease. In this study, the protective efficacy of Leishmania LiHyC protein was evaluated in a murine model against Leish- mania infantum infection. LiHyC was used as recombinant protein (rLiHyC) associated with saponin (rLiHyC/S) or Poloxamer 407-based polymeric micelles (rLiHyC/M) to immunize mice. Animals received also saline, saponin or empty micelles as controls. The immunogenicity was evaluated before and after the challenge, and results showed that vaccination with rLiHyC/S or rLiHyC/M induced the production of high levels of interferon-gamma (IFN-γ), interleukin (IL)-12 and granulocyte-macrophage colony-stimulating factor in cell culture supernatants, as well as higher IFN-γ expres- sion evaluated by RT-qPCR and involvement from CD4+ and CD8+ T-cell subtypes producing IFN-γ, tumor necrosis factor-α and IL-2. A positive lymphoproliferative response was also found in cell cultures from vaccinated animals, besides high levels of rLiHyC- and parasite-specific nitrite and IgG2a antibodies. Immunological assays correlated with significant reductions in the parasite load in the spleens, livers, bone marrows and draining lymph nodes from vaccinated mice, when compared to values found in the controls. The micellar composition showed slightly better immunological and parasitological data, as compared to rLiHyC/S. Results suggest that rLiHyC asso- ciated with adjuvants could be considered for future studies as a vaccine candidate against VL.pt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectImmune responsept_BR
dc.subjectPolymeric micellespt_BR
dc.subjectRecombinant proteinspt_BR
dc.subjectVaccinept_BR
dc.titleLeishmania LiHyC protein is immunogenic and induces protection against visceral leishmaniasis.pt_BR
dc.typeArtigo publicado em periodicopt_BR
dc.identifier.uri2https://onlinelibrary.wiley.com/doi/10.1111/pim.12921pt_BR
dc.identifier.doihttps://doi.org/10.1111/pim.12921pt_BR
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