Research in Veterinary Science, ( ISI ), Volume (125), Year (2019-8) , Pages (153-161)

Title : ( The design and application of a bacterial ghost vaccine to evaluate immune response and defense against avian pathogenic Escherichia coli O2:K1 serotype )

Authors: REZA HOSEINI SHAHIDI , GHOLAMREZA HASHEMI TABAR , Mohammad Reza Bassami , Abdollah Jamshidi , Hesam Dehghani ,

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Abstract

An Escherichia coli (E. coli) O2:K1 bacterial ghost was produced by controlled expression of bacteriophage PhiX 174 lysis gene E. Temperature controlled expression of this gene caused tunnels and holes in the cell wall of E. coli O2:K1 bacterium, leading to loss of cytoplasmic contents. Formation of E. coli O2:K1 ghost was confirmed by scanning electron microscopy and determination of colony forming units. To evaluate the efficiency of this ghost vaccine to elicit cellular and humoral immune responses, 85 one day old chickens from Ross 308 breed were divided into the following 5 groups; group 1 (non-immunized control), group 2 (vaccine administered by injection of E. coli O2:K1 killed vaccine), group 3 (vaccine administered by injection of E. coli O2:K1 ghost), group 4 (vaccine administered by inhalation of E. coli O2:K1 ghost), and group 5 (neither immunized, nor challenged as negative control). The three groups of 2, 3, and 4 were received vaccines at days 7, 14, and 22. Groups 1 to 4 were challenged with the wild serotype at day 33. Evaluation of post-mortem lesions and immune responses in all groups showed that chicken injected with the killed vaccine and the bacterial ghost had the best protection. These findings suggest that this ghost has the potential to be used as a poultry Colibacillosis vaccine.

Keywords

, E-Coli O2K1, Avian collibasilosis , Bacterial Ghost (BG) , E.coli O2:K1, vaccine,
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@article{paperid:1074948,
author = {HOSEINI SHAHIDI, REZA and HASHEMI TABAR, GHOLAMREZA and Bassami, Mohammad Reza and Jamshidi, Abdollah and Dehghani, Hesam},
title = {The design and application of a bacterial ghost vaccine to evaluate immune response and defense against avian pathogenic Escherichia coli O2:K1 serotype},
journal = {Research in Veterinary Science},
year = {2019},
volume = {125},
month = {August},
issn = {0034-5288},
pages = {153--161},
numpages = {8},
keywords = {E-Coli O2K1; Avian collibasilosis ; Bacterial Ghost (BG) ; E.coli O2:K1; vaccine;},
}

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%0 Journal Article
%T The design and application of a bacterial ghost vaccine to evaluate immune response and defense against avian pathogenic Escherichia coli O2:K1 serotype
%A HOSEINI SHAHIDI, REZA
%A HASHEMI TABAR, GHOLAMREZA
%A Bassami, Mohammad Reza
%A Jamshidi, Abdollah
%A Dehghani, Hesam
%J Research in Veterinary Science
%@ 0034-5288
%D 2019

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