Immunodiagnosis of human and canine visceral leishmaniasis using recombinant Leishmania infantum Prohibitin protein and a synthetic peptide containing its conformational B-cell epitope.

Rodrigues, Marcella RezendeSantos, Lucas Magno OliveiraMiyazaki, Carolina KeiMartins, Vivian TamiettiRibeiro, Fernanda LudolfKursancew, Amanda Christine da SilvaRamos, Fernanda FonsecaDias, Daniel SilvaOliveira, Jamil Silvano deVieira, Paula Melo de AbreuRoatt, Bruno MendesÁvila, Ricardo Andrez Machado deGonçalves, Denise UtschSouza, Daniel MenezesCoelho, Eduardo Antônio FerrazDuarte, Mariana Costa2020-03-242020-03-242019RODRIGUES, M. R. et al. Immunodiagnosis of human and canine visceral leishmaniasis using recombinant Leishmania infantum Prohibitin protein and a synthetic peptide containing its conformational B-cell epitope. Journal of Immunological Methods, v. 474, p. 112641, nov. 2019. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0022175919301371?via%3Dihub>. Acesso em: 10 fev. 2020.0022-1759http://www.repositorio.ufop.br/handle/123456789/12003In the present study, Leishmania infantum's Prohibitin was cloned and, alongside a synthetic peptide, evaluated for the serodiagnosis of visceral and tegumentary leishmaniasis (CVL and TL, respectively) in dogs and humans. For TL diagnosis, this study analyzed serum samples from cutaneous (n=20) or mucosal (n=39) leishmaniasis patients, and from Chagas disease (CD) patients (n=8) and non-infected patients (n=45). For CVL diagnosis, serum samples from asymptomatic (n=14), symptomatic (n=71), non-infected (n=116), and Leish-Tec®- vaccinated (n=79) dogs were examined, as well as T. cruzi (n=11) and Ehrlichia canis (n=10) infected animals. An indirect ELISA method using rProhibitin showed diagnostic sensitivity and specificity values of 91.76% and 89.91%, respectively. L. infantum SLA showed 86.11% and 48.24% of specificity and sensitivity, respectively, for CVL serodiagnosis, and 98.31% and 84.91% sensitivity and specificity, respectively for TL diagnosis. L. braziliensis SLA showed 75.47% and 83.05% of specificity and sensitivity, respectively, for TL diagnosis. The synthetic peptide showed a better result in TL than in CVL diagnosis. In conclusion, preliminar results suggest that the detection of antibodies against the rProhibitin protein and the synthetic peptide improves the serodiagnosis of TL and CVL.en-USrestritoDogsRecombinant proteinSerodiagnosisImmunodiagnosis of human and canine visceral leishmaniasis using recombinant Leishmania infantum Prohibitin protein and a synthetic peptide containing its conformational B-cell epitope.Artigo publicado em periodicohttps://www.sciencedirect.com/science/article/pii/S0022175919301371?via%3Dihubhttps://doi.org/10.1016/j.jim.2019.112641