Development of an immunogen containing CD4+/CD8+ T‐cell epitopes for the prophylaxis of tegumentary leishmaniasis.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorFerraz, Isabela de Andrade-
Autor(es): dc.creatorCarvalho, Ana Maria Ravena Severino-
Autor(es): dc.creatorBrito, Rory Cristiane Fortes de-
Autor(es): dc.creatorRoatt, Bruno Mendes-
Autor(es): dc.creatorMartins, Vivian Tamietti-
Autor(es): dc.creatorLage, Daniela Pagliara-
Autor(es): dc.creatorCruz, Luiza dos Reis-
Autor(es): dc.creatorMedeiros, Fernanda Alvarenga Cardoso-
Autor(es): dc.creatorGonçalves, Denise Utsch-
Autor(es): dc.creatorRocha, Manoel Otávio da Costa-
Autor(es): dc.creatorCoelho, Eduardo Antônio Ferraz-
Autor(es): dc.creatorMendes, Tiago Antônio de Oliveira-
Autor(es): dc.creatorDuarte, Mariana Costa-
Autor(es): dc.creatorSouza, Daniel Menezes-
Data de aceite: dc.date.accessioned2025-08-21T15:51:00Z-
Data de disponibilização: dc.date.available2025-08-21T15:51:00Z-
Data de envio: dc.date.issued2023-10-30-
Data de envio: dc.date.issued2023-10-30-
Data de envio: dc.date.issued2021-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/jspui/handle/123456789/17699-
Fonte completa do material: dc.identifierhttps://link.springer.com/article/10.1007/s00253-022-12033-7-
Fonte completa do material: dc.identifierhttps://doi.org/10.1007/s00253-022-12033-7-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1025719-
Descrição: dc.descriptionTegumentary leishmaniasis (TL) is a disease of high severity and incidence in Brazil, and Leishmania braziliensis is its main etiological agent. The inefciency of control measures, such as high toxicity and costs of current treatments and the lack of efective immunoprophylactic strategies, makes the development of vaccines indispensable and imminent. In this light, the present work developed a gene encoding multiple T-cell (CD4+/CD8+) epitope, derived from conserved proteins found in Leishmania species and associated with TL, to generate a chimeric protein (rMEP/TL) and compose a vaccine formulation. For this, six T-cell epitopes were selected by immunoinformatics approaches from proteins present in the amastigote stage and associated with host-parasite interactions. The following formulations were then tested in an L. braziliensis murine infection model: rMEP/TL in saline or associated with MPLA-PHAD®. Our data revealed that, after immunization (three doses; 14-day intervals) and subsequent challenging, rMEP/TL and rMEP/TL+MPLA-vaccinated mice showed an increased production of key immunological biomarkers of protection, such as IgG2a, IgG2a/IgG1, NO, CD4+, and CD8+ T-cells with IFN-γ and TNF-α production, associated with a reduction in CD4+IL-10+ and CD8+IL-10+ T-cells. Vaccines also induced the development of central (CD44highCD62Lhigh) and efector (CD44highCD62Llow) memory of CD4+ and CD8+ T-cells. These fndings, associated with the observation of lower rates of parasite burdens in the vaccinated groups, when compared to the control groups, suggest that immunization with rMEP/TL and, preferably, associated with an adjuvant, may be considered an efective tool to prevent TL.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsrestrito-
Palavras-chave: dc.subjectLeishmania braziliensis-
Palavras-chave: dc.subjectVaccine-
Palavras-chave: dc.subjectImmunoinformatics-
Palavras-chave: dc.subjectT-cell epitope mapping-
Palavras-chave: dc.subjectChimeric protein-
Título: dc.titleDevelopment of an immunogen containing CD4+/CD8+ T‐cell epitopes for the prophylaxis of tegumentary leishmaniasis.-
Aparece nas coleções:Repositório Institucional - UFOP

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