Fishing for vaccines against Vibrio cholerae using in silico pan-proteomic reverse vaccinology approach

Background Cholera, an acute enteric infection, is a serious health challenge in both the underdeveloped and the developing world. It is caused by Vibrio cholerae after ingestion of fecal contaminated food or water. Cholera outbreaks have recently been observed in regions facing natural calamities (...

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Main Authors: Muhammad I. Rashid, Sammia Rehman, Amjad Ali, Saadia Andleeb
Format: Article
Language:English
Published: PeerJ Inc. 2019-06-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/6223.pdf
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author Muhammad I. Rashid
Sammia Rehman
Amjad Ali
Saadia Andleeb
author_facet Muhammad I. Rashid
Sammia Rehman
Amjad Ali
Saadia Andleeb
author_sort Muhammad I. Rashid
collection DOAJ
description Background Cholera, an acute enteric infection, is a serious health challenge in both the underdeveloped and the developing world. It is caused by Vibrio cholerae after ingestion of fecal contaminated food or water. Cholera outbreaks have recently been observed in regions facing natural calamities (i.e., earthquake in Haiti 2010) or war (i.e., ongoing civil war in Yemen 2016) where healthcare and sanitary setups have been disrupted as a consequence. Whole-cell oral cholera vaccines (OCVs) have been in market but their regimen efficacy has been questioned. A reverse vaccinology (RV) approach has been applied as a successful anti-microbial measure for many infectious diseases. Methodology With the aim of finding new protective antigens for vaccine development, the V. cholerae O1 (biovar eltr str. N16961) proteome was computationally screened in a sequential prioritization approach that focused on determining the antigenicity of potential vaccine candidates. Essential, accessible, virulent and immunogenic proteins were selected as potential candidates. The predicted epitopes were filtered for effective binding with MHC alleles and epitopes binding with greater MHC alleles were selected. Results In this study, we report lipoprotein NlpD, outer membrane protein OmpU, accessory colonization factor AcfA, Porin, putative and outer membrane protein OmpW as potential candidates qualifying all the set criteria. These predicted epitopes can offer a potential for development of a reliable peptide or subunit vaccine for V. cholerae.
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spelling doaj.art-e0340c99cb744d2ba67ab9ccad7340602023-12-03T00:48:27ZengPeerJ Inc.PeerJ2167-83592019-06-017e622310.7717/peerj.6223Fishing for vaccines against Vibrio cholerae using in silico pan-proteomic reverse vaccinology approachMuhammad I. RashidSammia RehmanAmjad AliSaadia AndleebBackground Cholera, an acute enteric infection, is a serious health challenge in both the underdeveloped and the developing world. It is caused by Vibrio cholerae after ingestion of fecal contaminated food or water. Cholera outbreaks have recently been observed in regions facing natural calamities (i.e., earthquake in Haiti 2010) or war (i.e., ongoing civil war in Yemen 2016) where healthcare and sanitary setups have been disrupted as a consequence. Whole-cell oral cholera vaccines (OCVs) have been in market but their regimen efficacy has been questioned. A reverse vaccinology (RV) approach has been applied as a successful anti-microbial measure for many infectious diseases. Methodology With the aim of finding new protective antigens for vaccine development, the V. cholerae O1 (biovar eltr str. N16961) proteome was computationally screened in a sequential prioritization approach that focused on determining the antigenicity of potential vaccine candidates. Essential, accessible, virulent and immunogenic proteins were selected as potential candidates. The predicted epitopes were filtered for effective binding with MHC alleles and epitopes binding with greater MHC alleles were selected. Results In this study, we report lipoprotein NlpD, outer membrane protein OmpU, accessory colonization factor AcfA, Porin, putative and outer membrane protein OmpW as potential candidates qualifying all the set criteria. These predicted epitopes can offer a potential for development of a reliable peptide or subunit vaccine for V. cholerae.https://peerj.com/articles/6223.pdfVibrio choleraeReverse vaccinologyCholeraPeptide vaccineEpitope prediction
spellingShingle Muhammad I. Rashid
Sammia Rehman
Amjad Ali
Saadia Andleeb
Fishing for vaccines against Vibrio cholerae using in silico pan-proteomic reverse vaccinology approach
PeerJ
Vibrio cholerae
Reverse vaccinology
Cholera
Peptide vaccine
Epitope prediction
title Fishing for vaccines against Vibrio cholerae using in silico pan-proteomic reverse vaccinology approach
title_full Fishing for vaccines against Vibrio cholerae using in silico pan-proteomic reverse vaccinology approach
title_fullStr Fishing for vaccines against Vibrio cholerae using in silico pan-proteomic reverse vaccinology approach
title_full_unstemmed Fishing for vaccines against Vibrio cholerae using in silico pan-proteomic reverse vaccinology approach
title_short Fishing for vaccines against Vibrio cholerae using in silico pan-proteomic reverse vaccinology approach
title_sort fishing for vaccines against vibrio cholerae using in silico pan proteomic reverse vaccinology approach
topic Vibrio cholerae
Reverse vaccinology
Cholera
Peptide vaccine
Epitope prediction
url https://peerj.com/articles/6223.pdf
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