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Identification of relevant regions on structural and nonstructural proteins of Zika virus for vaccine and diagnostic test development: an in silico approach

Zika virus (ZIKV) is an arbovirus belonging to the Flaviviridae family and the genus Flavivirus. Infection with ZIKV causes a mild, self-limiting febrile illness called Zika fever. However, ZIKV infection has been recently associated with microcephaly and Guillain-Barré syndrome. Vaccines for the di...

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Autores principales: Salvador, E.A., Pires de Souza, G.A., Cotta Malaquias, L.C., Wang, T., Leomil Coelho, L.F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6396434/
https://www.ncbi.nlm.nih.gov/pubmed/30858979
http://dx.doi.org/10.1016/j.nmni.2019.01.002
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author Salvador, E.A.
Pires de Souza, G.A.
Cotta Malaquias, L.C.
Wang, T.
Leomil Coelho, L.F.
author_facet Salvador, E.A.
Pires de Souza, G.A.
Cotta Malaquias, L.C.
Wang, T.
Leomil Coelho, L.F.
author_sort Salvador, E.A.
collection PubMed
description Zika virus (ZIKV) is an arbovirus belonging to the Flaviviridae family and the genus Flavivirus. Infection with ZIKV causes a mild, self-limiting febrile illness called Zika fever. However, ZIKV infection has been recently associated with microcephaly and Guillain-Barré syndrome. Vaccines for the disease are a high priority of World Health Organization. Several studies are currently being conducted to develop a vaccine against ZIKV, but until now there is no licensed ZIKV vaccine. This study used a novel immunoinformatics approach to identify potential T-cell immunogenic epitopes present in the structural and nonstructural proteins of ZIKV. Fourteen T-cell candidate epitopes were identified on ZIKV structural and nonstructural proteins: pr(36−50); C(61−75); C(103−117); E(374−382); E(477−491); NS2a(90−104); NS2a(174−188); NS2a(179−193); NS2a(190−204); NS2a(195−209); NS2a(200−214); NS3(175−189); and NS4a(82−96); NS4a(99−113). Among these epitopes, only E(374−382) is a human leukocyte antigen (HLA) type I restricted epitope. All identified epitopes showed a low similarity with other important flaviviruses but had a high conservation rate among the ZIKV strains and a high population coverage rate. Therefore, these predicted T-cell epitopes are potential candidates targets for development of vaccines to prevent ZIKV infection.
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spelling pubmed-63964342019-03-11 Identification of relevant regions on structural and nonstructural proteins of Zika virus for vaccine and diagnostic test development: an in silico approach Salvador, E.A. Pires de Souza, G.A. Cotta Malaquias, L.C. Wang, T. Leomil Coelho, L.F. New Microbes New Infect Article(s) from the Special Issue on Infections in Brazil Zika virus (ZIKV) is an arbovirus belonging to the Flaviviridae family and the genus Flavivirus. Infection with ZIKV causes a mild, self-limiting febrile illness called Zika fever. However, ZIKV infection has been recently associated with microcephaly and Guillain-Barré syndrome. Vaccines for the disease are a high priority of World Health Organization. Several studies are currently being conducted to develop a vaccine against ZIKV, but until now there is no licensed ZIKV vaccine. This study used a novel immunoinformatics approach to identify potential T-cell immunogenic epitopes present in the structural and nonstructural proteins of ZIKV. Fourteen T-cell candidate epitopes were identified on ZIKV structural and nonstructural proteins: pr(36−50); C(61−75); C(103−117); E(374−382); E(477−491); NS2a(90−104); NS2a(174−188); NS2a(179−193); NS2a(190−204); NS2a(195−209); NS2a(200−214); NS3(175−189); and NS4a(82−96); NS4a(99−113). Among these epitopes, only E(374−382) is a human leukocyte antigen (HLA) type I restricted epitope. All identified epitopes showed a low similarity with other important flaviviruses but had a high conservation rate among the ZIKV strains and a high population coverage rate. Therefore, these predicted T-cell epitopes are potential candidates targets for development of vaccines to prevent ZIKV infection. Elsevier 2019-01-31 /pmc/articles/PMC6396434/ /pubmed/30858979 http://dx.doi.org/10.1016/j.nmni.2019.01.002 Text en © 2019 Published by Elsevier Ltd. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article(s) from the Special Issue on Infections in Brazil
Salvador, E.A.
Pires de Souza, G.A.
Cotta Malaquias, L.C.
Wang, T.
Leomil Coelho, L.F.
Identification of relevant regions on structural and nonstructural proteins of Zika virus for vaccine and diagnostic test development: an in silico approach
title Identification of relevant regions on structural and nonstructural proteins of Zika virus for vaccine and diagnostic test development: an in silico approach
title_full Identification of relevant regions on structural and nonstructural proteins of Zika virus for vaccine and diagnostic test development: an in silico approach
title_fullStr Identification of relevant regions on structural and nonstructural proteins of Zika virus for vaccine and diagnostic test development: an in silico approach
title_full_unstemmed Identification of relevant regions on structural and nonstructural proteins of Zika virus for vaccine and diagnostic test development: an in silico approach
title_short Identification of relevant regions on structural and nonstructural proteins of Zika virus for vaccine and diagnostic test development: an in silico approach
title_sort identification of relevant regions on structural and nonstructural proteins of zika virus for vaccine and diagnostic test development: an in silico approach
topic Article(s) from the Special Issue on Infections in Brazil
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6396434/
https://www.ncbi.nlm.nih.gov/pubmed/30858979
http://dx.doi.org/10.1016/j.nmni.2019.01.002
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