Extraction and characterisation of Brucella abortus strain RB51 rough lipopolysaccharide

Brucellosis is an important zoonotic disease with considerable impacts on human and animal health. Brucella abortus strain RB51 vaccine is used for prevention of bovine brucellosis in Iran. Due to strain roughness, available serological tests cannot detect vaccinated animals. Detection of serologica...

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Main Authors: A. Kalantari, T. Naserpour Farivar, A. Peymani, M. Aslanimehr, R. Bagheri Nejad
Format: Article
Language:English
Published: Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria 2019-06-01
Series:Bulgarian Journal of Veterinary Medicine
Subjects:
Online Access:http://tru.uni-sz.bg/bjvm/BJVM%20June%202019%20p.152-162.pdf
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author A. Kalantari
T. Naserpour Farivar
A. Peymani
M. Aslanimehr
R. Bagheri Nejad
author_facet A. Kalantari
T. Naserpour Farivar
A. Peymani
M. Aslanimehr
R. Bagheri Nejad
author_sort A. Kalantari
collection DOAJ
description Brucellosis is an important zoonotic disease with considerable impacts on human and animal health. Brucella abortus strain RB51 vaccine is used for prevention of bovine brucellosis in Iran. Due to strain roughness, available serological tests cannot detect vaccinated animals. Detection of serological responses to the vaccine is important to monitor accurate vaccination implementation. Rough lipopolysaccharide (RLPS) of RB51 strain was extracted and characterised to develop serological tests for diagnosis of vaccinated animals. RLPS was extracted using phenol-chloroform-petroleum ether and evaluated by limulus amebocyte lysate (LAL) assay, sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and agar gel immunodiffusion (AGID). According to our results, the extracted RLPS caused positive reaction in LAL assay. In SDS-PAGE, a band with a molecular weight around 14 kDa was identified after specific staining using silver nitrate. Double AGID of the RLPS with a hyperimmune serum resulted in a precipitation line formation. Our study showed that the method can be successfully used to extract RLPS from Brucella abortus strain RB51 as confirmed by LAL assay, PAGE and AGID.
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spelling doaj.art-33d22ce3921048d29c9e8cede30742b92022-12-22T02:03:21ZengFaculty of Veterinary Medicine, Trakia University, Stara Zagora, BulgariaBulgarian Journal of Veterinary Medicine1311-14771313-35432019-06-0122215216210.15547/bjvm.2050Extraction and characterisation of Brucella abortus strain RB51 rough lipopolysaccharideA. Kalantari0T. Naserpour Farivar1A. Peymani2M. Aslanimehr 3R. Bagheri Nejad4Cellular & Molecular Research Center, Qazvin University of Medical Sciences, Qazvin, IranCellular & Molecular Research Center, Qazvin University of Medical Sciences, Qazvin, IranCellular & Molecular Research Center, Qazvin University of Medical Sciences, Qazvin, IranCellular & Molecular Research Center, Qazvin University of Medical Sciences, Qazvin, IranBrucellosis Department, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization, Karaj, IranBrucellosis is an important zoonotic disease with considerable impacts on human and animal health. Brucella abortus strain RB51 vaccine is used for prevention of bovine brucellosis in Iran. Due to strain roughness, available serological tests cannot detect vaccinated animals. Detection of serological responses to the vaccine is important to monitor accurate vaccination implementation. Rough lipopolysaccharide (RLPS) of RB51 strain was extracted and characterised to develop serological tests for diagnosis of vaccinated animals. RLPS was extracted using phenol-chloroform-petroleum ether and evaluated by limulus amebocyte lysate (LAL) assay, sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and agar gel immunodiffusion (AGID). According to our results, the extracted RLPS caused positive reaction in LAL assay. In SDS-PAGE, a band with a molecular weight around 14 kDa was identified after specific staining using silver nitrate. Double AGID of the RLPS with a hyperimmune serum resulted in a precipitation line formation. Our study showed that the method can be successfully used to extract RLPS from Brucella abortus strain RB51 as confirmed by LAL assay, PAGE and AGID.http://tru.uni-sz.bg/bjvm/BJVM%20June%202019%20p.152-162.pdf: brucellosisRB51 vaccinerough lipopolysaccharide
spellingShingle A. Kalantari
T. Naserpour Farivar
A. Peymani
M. Aslanimehr
R. Bagheri Nejad
Extraction and characterisation of Brucella abortus strain RB51 rough lipopolysaccharide
Bulgarian Journal of Veterinary Medicine
: brucellosis
RB51 vaccine
rough lipopolysaccharide
title Extraction and characterisation of Brucella abortus strain RB51 rough lipopolysaccharide
title_full Extraction and characterisation of Brucella abortus strain RB51 rough lipopolysaccharide
title_fullStr Extraction and characterisation of Brucella abortus strain RB51 rough lipopolysaccharide
title_full_unstemmed Extraction and characterisation of Brucella abortus strain RB51 rough lipopolysaccharide
title_short Extraction and characterisation of Brucella abortus strain RB51 rough lipopolysaccharide
title_sort extraction and characterisation of brucella abortus strain rb51 rough lipopolysaccharide
topic : brucellosis
RB51 vaccine
rough lipopolysaccharide
url http://tru.uni-sz.bg/bjvm/BJVM%20June%202019%20p.152-162.pdf
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