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Development of Immunological Assays Based on Leishmania donovani Antigen for Diagnosis of Canine Visceral Leishmaniasis and Their Multicenter Evaluation in Brazil and Italy

Canine visceral leishmaniasis (CVL) due to Leishmania infantum infection is a zoonotic disease prevalent in the areas of South America and the Mediterranean. Infected dogs as reservoirs can contribute to disease transmission and can be a scourge to public health. Therefore, early diagnosis of infect...

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Autores principales: Ejazi, Sarfaraz Ahmad, Saha, Samiran, Bhattacharyya, Anirban, Das, Sonali, Mateus, Nathália Lopes Fontoura, da Costa Lima, Manoel Sebastião, Neitzke-Abreu, Herintha Coeto, de Mendonca, Ivete Lopes, Costa, Carlos Henrique Nery, de Oliveira Melo, Otoni Alves, de Melo, Marcia Almeida, Rossi-Bergmann, Bartira, Corso, Raffaele, Manna, Laura, Ali, Nahid
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9283983/
https://www.ncbi.nlm.nih.gov/pubmed/35846748
http://dx.doi.org/10.3389/fcimb.2022.914477
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author Ejazi, Sarfaraz Ahmad
Saha, Samiran
Bhattacharyya, Anirban
Das, Sonali
Mateus, Nathália Lopes Fontoura
da Costa Lima, Manoel Sebastião
Neitzke-Abreu, Herintha Coeto
de Mendonca, Ivete Lopes
Costa, Carlos Henrique Nery
de Oliveira Melo, Otoni Alves
de Melo, Marcia Almeida
Rossi-Bergmann, Bartira
Corso, Raffaele
Manna, Laura
Ali, Nahid
author_facet Ejazi, Sarfaraz Ahmad
Saha, Samiran
Bhattacharyya, Anirban
Das, Sonali
Mateus, Nathália Lopes Fontoura
da Costa Lima, Manoel Sebastião
Neitzke-Abreu, Herintha Coeto
de Mendonca, Ivete Lopes
Costa, Carlos Henrique Nery
de Oliveira Melo, Otoni Alves
de Melo, Marcia Almeida
Rossi-Bergmann, Bartira
Corso, Raffaele
Manna, Laura
Ali, Nahid
author_sort Ejazi, Sarfaraz Ahmad
collection PubMed
description Canine visceral leishmaniasis (CVL) due to Leishmania infantum infection is a zoonotic disease prevalent in the areas of South America and the Mediterranean. Infected dogs as reservoirs can contribute to disease transmission and can be a scourge to public health. Therefore, early diagnosis of infected dogs may play a pivotal role in circumscribing disease progression. Invasive tissue aspiration and insufficient serological methods impair a single assay for prompt CVL diagnosis. In the present study, we aimed to evaluate the potential of Leishmania donovani isolated membrane protein, LAg, for the diagnosis of CVL through immunological assays. Initially, enzyme-linked immunosorbent assay was done with Brazilian dog sera to evaluate the performance of LAg in diagnosing CVL and found sensitivity and specificity of 92.50% and 95%, respectively. The study further confirmed the diagnostic efficacy of LAg in a dipstick format. The dipstick test of canine sera from three centers in Brazil and one center in Italy collectively showed sensitivity values in the range of 53.33% to 100% in recognizing symptomatic dogs and specificity values between 75% and 100% to rule out healthy dogs. Moreover, a rapid immunochromatographic test was developed and optimized using LAg. This test was able to identify 94.73% of CVL of Brazilian origin with specificity of 97.29%. The current results highlight the reactive potential of the L. donovani antigen, LAg, for L. infantum CVL diagnosis and support our previous findings, which suggest the utility of LAg for the diagnosis of both L. donovani and L. infantum human VL in a variety of endemic regions. LAg as a diagnostic candidate may be employed to identify comprehensive CVL cases in epidemiological areas.
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spelling pubmed-92839832022-07-16 Development of Immunological Assays Based on Leishmania donovani Antigen for Diagnosis of Canine Visceral Leishmaniasis and Their Multicenter Evaluation in Brazil and Italy Ejazi, Sarfaraz Ahmad Saha, Samiran Bhattacharyya, Anirban Das, Sonali Mateus, Nathália Lopes Fontoura da Costa Lima, Manoel Sebastião Neitzke-Abreu, Herintha Coeto de Mendonca, Ivete Lopes Costa, Carlos Henrique Nery de Oliveira Melo, Otoni Alves de Melo, Marcia Almeida Rossi-Bergmann, Bartira Corso, Raffaele Manna, Laura Ali, Nahid Front Cell Infect Microbiol Cellular and Infection Microbiology Canine visceral leishmaniasis (CVL) due to Leishmania infantum infection is a zoonotic disease prevalent in the areas of South America and the Mediterranean. Infected dogs as reservoirs can contribute to disease transmission and can be a scourge to public health. Therefore, early diagnosis of infected dogs may play a pivotal role in circumscribing disease progression. Invasive tissue aspiration and insufficient serological methods impair a single assay for prompt CVL diagnosis. In the present study, we aimed to evaluate the potential of Leishmania donovani isolated membrane protein, LAg, for the diagnosis of CVL through immunological assays. Initially, enzyme-linked immunosorbent assay was done with Brazilian dog sera to evaluate the performance of LAg in diagnosing CVL and found sensitivity and specificity of 92.50% and 95%, respectively. The study further confirmed the diagnostic efficacy of LAg in a dipstick format. The dipstick test of canine sera from three centers in Brazil and one center in Italy collectively showed sensitivity values in the range of 53.33% to 100% in recognizing symptomatic dogs and specificity values between 75% and 100% to rule out healthy dogs. Moreover, a rapid immunochromatographic test was developed and optimized using LAg. This test was able to identify 94.73% of CVL of Brazilian origin with specificity of 97.29%. The current results highlight the reactive potential of the L. donovani antigen, LAg, for L. infantum CVL diagnosis and support our previous findings, which suggest the utility of LAg for the diagnosis of both L. donovani and L. infantum human VL in a variety of endemic regions. LAg as a diagnostic candidate may be employed to identify comprehensive CVL cases in epidemiological areas. Frontiers Media S.A. 2022-07-01 /pmc/articles/PMC9283983/ /pubmed/35846748 http://dx.doi.org/10.3389/fcimb.2022.914477 Text en Copyright © 2022 Ejazi, Saha, Bhattacharyya, Das, Mateus, da Costa Lima, Neitzke-Abreu, de Mendonca, Costa, de Oliveira Melo, de Melo, Rossi-Bergmann, Corso, Manna and Ali https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Cellular and Infection Microbiology
Ejazi, Sarfaraz Ahmad
Saha, Samiran
Bhattacharyya, Anirban
Das, Sonali
Mateus, Nathália Lopes Fontoura
da Costa Lima, Manoel Sebastião
Neitzke-Abreu, Herintha Coeto
de Mendonca, Ivete Lopes
Costa, Carlos Henrique Nery
de Oliveira Melo, Otoni Alves
de Melo, Marcia Almeida
Rossi-Bergmann, Bartira
Corso, Raffaele
Manna, Laura
Ali, Nahid
Development of Immunological Assays Based on Leishmania donovani Antigen for Diagnosis of Canine Visceral Leishmaniasis and Their Multicenter Evaluation in Brazil and Italy
title Development of Immunological Assays Based on Leishmania donovani Antigen for Diagnosis of Canine Visceral Leishmaniasis and Their Multicenter Evaluation in Brazil and Italy
title_full Development of Immunological Assays Based on Leishmania donovani Antigen for Diagnosis of Canine Visceral Leishmaniasis and Their Multicenter Evaluation in Brazil and Italy
title_fullStr Development of Immunological Assays Based on Leishmania donovani Antigen for Diagnosis of Canine Visceral Leishmaniasis and Their Multicenter Evaluation in Brazil and Italy
title_full_unstemmed Development of Immunological Assays Based on Leishmania donovani Antigen for Diagnosis of Canine Visceral Leishmaniasis and Their Multicenter Evaluation in Brazil and Italy
title_short Development of Immunological Assays Based on Leishmania donovani Antigen for Diagnosis of Canine Visceral Leishmaniasis and Their Multicenter Evaluation in Brazil and Italy
title_sort development of immunological assays based on leishmania donovani antigen for diagnosis of canine visceral leishmaniasis and their multicenter evaluation in brazil and italy
topic Cellular and Infection Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9283983/
https://www.ncbi.nlm.nih.gov/pubmed/35846748
http://dx.doi.org/10.3389/fcimb.2022.914477
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