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• W2892940255 abstract "Serological tests are important tools for the diagnosis of Leishmania infection. However, they are not effective markers to diagnose asymptomatic cases of visceral leishmaniasis (VL) and patients developing tegumentary leishmaniasis (TL), since antileishmanial antibodies can be encountered in low levels resulting in false-negative results in the serological trials. In this context, antigens able to be recognized by antibodies in sera from both VL and TL patients will be desirable to be employed in a more sensitivity and specific diagnosis of disease. In the present study, a conserved Leishmania protein, small myristoylated protein-3 (SMP-3), which was showed to be conserved in different Leishmania species and an effective vaccine candidate against Leishmania infantum infection in a murine model, was cloned and the recombinant protein was evaluated as a serological marker for the diagnosis of human TL and canine VL. In addition, a linear B cell-specific epitope (MQKDEESGEFKCEL) was identified, synthetized and also investigated as a serological marker. As antigen controls, rA2 protein and antigenic Leishmania extracts (SLA) were used. Results showed that ELISA-rSMP-3 and ELISA-Peptide presented sensitivity and specificity values higher than 90% in both diseases in humans and canids, having identified all asymptomatic cases and did not present cross-reaction with cross-reactivity diseases in both mammalian hosts. On the other hand, sensitivity and specificity values were worst when rA2 or SLA were used as antigens in humans and dogs. In conclusion, results showed the efficacy and Leishmania SMP-3 protein, employed as a recombinant antigen or a B cell epitope, for the improvement of the serodiagnosis of human TL and canine VL. This candidate can be tested in other diagnostic platforms, such as rapid immunochromatographic dipstick tests, aiming its use in epidemiological studies in remote areas where laboratories are not readily accessible for conventional assays." @default.
• W2892940255 created "2018-10-05" @default.
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• W2892940255 date "2019-01-01" @default.
• W2892940255 modified "2023-10-17" @default.
• W2892940255 title "Potential application of small myristoylated protein-3 evaluated as recombinant antigen and a synthetic peptide containing its linear B-cell epitope for the serodiagnosis of canine visceral and human tegumentary leishmaniasis" @default.
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• W2892940255 doi "https://doi.org/10.1016/j.imbio.2018.09.003" @default.
• W2892940255 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30266201" @default.
• W2892940255 hasPublicationYear "2019" @default.
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