Cumulative protective efficacy of rZot and rAce combination in challenge experiments with wild type Vibrio cholerae in mouse model

The aim of this study was to assess the cumulative immunogenicity properties of rZot and rAce combination and their potential ability to increase the clearance rate of pathogenic standard Vibrio cholerae strain in challenge experiments in mice model. The recombinant Zot and Ace proteins were produce...

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Main Authors: Shaghayegh Anvari, Shahin Najar-Peerayeh, Mehrdad Behmanesh, Bita Bakhshi
Format: Article
Language:English
Published: Taylor & Francis Group 2018-09-01
Series:Human Vaccines & Immunotherapeutics
Subjects:
Online Access:http://dx.doi.org/10.1080/21645515.2018.1469593
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author Shaghayegh Anvari
Shahin Najar-Peerayeh
Mehrdad Behmanesh
Bita Bakhshi
author_facet Shaghayegh Anvari
Shahin Najar-Peerayeh
Mehrdad Behmanesh
Bita Bakhshi
author_sort Shaghayegh Anvari
collection DOAJ
description The aim of this study was to assess the cumulative immunogenicity properties of rZot and rAce combination and their potential ability to increase the clearance rate of pathogenic standard Vibrio cholerae strain in challenge experiments in mice model. The recombinant Zot and Ace proteins were produced and used to raise polyclonal antibodies of anti-Zot and anti-Ace recombinant proteins in rabbit. Six-week female BALB/c mice were immunized with different antigens via oral route. Blood samples were collected, and the total amount of IgG and IgA antibodies against rZot and rAce were measured in blood and stool samples of each immunized mouse. Challenge experiments were done with toxigenic V. cholerae strain. The anti-Zot and anti-Ace IgG titers were significantly higher in immunized mice in comparison with control group. The IgG and IgA titers were higher in the sera of mice immunized by recombinant Ace than in group immunized by rZot, indicating the higher immunogenicity of rAce than rZot. The use of rAce and rZot mixture led to synergistic activities in increasing the level of IgG and IgA in comparison with the use of each protein separately. The clearance rate was significantly higher in different challenge groups than in the control group, and the coherence between rZot and rAce reduced the bacterial shedding significantly. In conclusion, the use of recombinant Zot and Ace mixture can produce the proper amount of IgA and IgG against to toxigenic V. cholerae, reduce bacterial shedding in immunized mice significantly, and be used as a potent candidate in cholera vaccine research.
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spelling doaj.art-2c05649395a04e8a96a2c7449233b6462023-09-22T08:38:21ZengTaylor & Francis GroupHuman Vaccines & Immunotherapeutics2164-55152164-554X2018-09-011492323232810.1080/21645515.2018.14695931469593Cumulative protective efficacy of rZot and rAce combination in challenge experiments with wild type Vibrio cholerae in mouse modelShaghayegh Anvari0Shahin Najar-Peerayeh1Mehrdad Behmanesh2Bita Bakhshi3Faculty of Medical Sciences, Tarbiat Modares UniversityFaculty of Medical Sciences, Tarbiat Modares UniversityFaculty of Basic Science, Tarbiat Modares UniversityFaculty of Medical Sciences, Tarbiat Modares UniversityThe aim of this study was to assess the cumulative immunogenicity properties of rZot and rAce combination and their potential ability to increase the clearance rate of pathogenic standard Vibrio cholerae strain in challenge experiments in mice model. The recombinant Zot and Ace proteins were produced and used to raise polyclonal antibodies of anti-Zot and anti-Ace recombinant proteins in rabbit. Six-week female BALB/c mice were immunized with different antigens via oral route. Blood samples were collected, and the total amount of IgG and IgA antibodies against rZot and rAce were measured in blood and stool samples of each immunized mouse. Challenge experiments were done with toxigenic V. cholerae strain. The anti-Zot and anti-Ace IgG titers were significantly higher in immunized mice in comparison with control group. The IgG and IgA titers were higher in the sera of mice immunized by recombinant Ace than in group immunized by rZot, indicating the higher immunogenicity of rAce than rZot. The use of rAce and rZot mixture led to synergistic activities in increasing the level of IgG and IgA in comparison with the use of each protein separately. The clearance rate was significantly higher in different challenge groups than in the control group, and the coherence between rZot and rAce reduced the bacterial shedding significantly. In conclusion, the use of recombinant Zot and Ace mixture can produce the proper amount of IgA and IgG against to toxigenic V. cholerae, reduce bacterial shedding in immunized mice significantly, and be used as a potent candidate in cholera vaccine research.http://dx.doi.org/10.1080/21645515.2018.1469593acezotvaccinevibrio cholerae
spellingShingle Shaghayegh Anvari
Shahin Najar-Peerayeh
Mehrdad Behmanesh
Bita Bakhshi
Cumulative protective efficacy of rZot and rAce combination in challenge experiments with wild type Vibrio cholerae in mouse model
Human Vaccines & Immunotherapeutics
ace
zot
vaccine
vibrio cholerae
title Cumulative protective efficacy of rZot and rAce combination in challenge experiments with wild type Vibrio cholerae in mouse model
title_full Cumulative protective efficacy of rZot and rAce combination in challenge experiments with wild type Vibrio cholerae in mouse model
title_fullStr Cumulative protective efficacy of rZot and rAce combination in challenge experiments with wild type Vibrio cholerae in mouse model
title_full_unstemmed Cumulative protective efficacy of rZot and rAce combination in challenge experiments with wild type Vibrio cholerae in mouse model
title_short Cumulative protective efficacy of rZot and rAce combination in challenge experiments with wild type Vibrio cholerae in mouse model
title_sort cumulative protective efficacy of rzot and race combination in challenge experiments with wild type vibrio cholerae in mouse model
topic ace
zot
vaccine
vibrio cholerae
url http://dx.doi.org/10.1080/21645515.2018.1469593
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AT mehrdadbehmanesh cumulativeprotectiveefficacyofrzotandracecombinationinchallengeexperimentswithwildtypevibriocholeraeinmousemodel
AT bitabakhshi cumulativeprotectiveefficacyofrzotandracecombinationinchallengeexperimentswithwildtypevibriocholeraeinmousemodel