Expression of a rK39 homologue from an Iranian Leishmania infantum isolate in Leishmania tarentolae for serodiagnosis of visceral leishmaniasis.

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ID: 106911
2019
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Abstract
Kinesin-related gene diversity among strains and species of Leishmania may impact the sensitivity and specificity of serodiagnostic tests for visceral leishmaniasis (VL).In this study, we report on the recombinant expression of this novel Iranian Leishmania infantum (MCAN14/47) homologue of rK39 (Li-rK39), in L. tarentolae. The diagnostic potential of the Li-rK39 antigen was evaluated in an ELISA, using sera from 100 VL patients, 190 healthy endemic controls, 46 non-endemic healthy controls and 47 patients with other infections.The results showed a sensitivity of 96% and a specificity of 93.8%. A commercial rK39 immunochromatographic test (ICT) was 90% sensitive and 100% specific on the same cohort.Here, we show that the K39 gene from an Iranian L. infantum isolate is heterozygous as compared to the sequence of the Brazilian L. infantum (former L. chagasi), whose antigen is incorporated in most rK39-based immunochromatographic tests. Therefore, Li-rK39 has the potential to be used as an alternative for VL diagnosis in Iran.
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rezaei2019expressionparasites Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Rezaei, Zahra;Van Reet, Nick;Pouladfar, Gholamreza;Kühne, Vera;Ramezani, Amin;Sarkari, Bahador;Pourabbas, Bahman;Büscher, Philippe;
Journal Parasites & vectors
Year 2019
DOI
10.1186/s13071-019-3839-3
URL
Keywords
leishmania visceral leishmaniasis serodiagnosis eukaryotic expression rk39

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