Detection of virulence genes (bvfA, virB and ure) in Brucella melitensis isolated from aborted fetuses of sheep and goats

Background and Objectives: Brucella, causative of brucellosis, has some potential virulence factors involved in Brucella replication and its strategies to circumvent the immune response. One of them is the virB gene that encodes the type ІV secretion system proteins (T4SS) involved in intracellular...

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Main Authors: Abdollah Derakhshandeh, Roya Firouzi, Ali Goudarztalejerd
Format: Article
Language:English
Published: Tehran University of Medical Sciences 2013-12-01
Series:Iranian Journal of Microbiology
Subjects:
Online Access:https://ijm.tums.ac.ir/index.php/ijm/article/view/490
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author Abdollah Derakhshandeh
Roya Firouzi
Ali Goudarztalejerd
author_facet Abdollah Derakhshandeh
Roya Firouzi
Ali Goudarztalejerd
author_sort Abdollah Derakhshandeh
collection DOAJ
description Background and Objectives: Brucella, causative of brucellosis, has some potential virulence factors involved in Brucella replication and its strategies to circumvent the immune response. One of them is the virB gene that encodes the type ІV secretion system proteins (T4SS) involved in intracellular replication of organism. Brucella virulence factor A (bvfA), and urease (ure) has also been described as being implicated in survival, and virulence in the hosts. The aim of this study was to investigate the B. melitensis virulence factor genes among Brucella isolated from aborted fetuses of sheep and goats in Fars province, southern Iran. Materials and Methods: A total of 42 isolates of B. melitensis isolated from aborted fetuses between 2005-2011 in Fars province of Iran was used in this study. PCR assay was performed in order to detect the virB, bvfA, and ure genes using specific primers. Results and Conclusions: The frequency of bvfA, virB, and ure genes was 78.50%, 73.80%, and 88.09% among all isolates respectively. The results of the present study showed that most Brucella isolates from this region have virulence factors genes (virB, bvfA, ure) in their genome, and most B. melitensis had ure genes that has been hypothesized to play a role in the pathogenesis of disease.
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spelling doaj.art-4168b81ec1e14adab6079c88a8d24dc02022-12-21T23:07:58ZengTehran University of Medical SciencesIranian Journal of Microbiology2008-32892008-44472013-12-0154Detection of virulence genes (bvfA, virB and ure) in Brucella melitensis isolated from aborted fetuses of sheep and goatsAbdollah Derakhshandeh0Roya Firouzi1Ali Goudarztalejerd2Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.Background and Objectives: Brucella, causative of brucellosis, has some potential virulence factors involved in Brucella replication and its strategies to circumvent the immune response. One of them is the virB gene that encodes the type ІV secretion system proteins (T4SS) involved in intracellular replication of organism. Brucella virulence factor A (bvfA), and urease (ure) has also been described as being implicated in survival, and virulence in the hosts. The aim of this study was to investigate the B. melitensis virulence factor genes among Brucella isolated from aborted fetuses of sheep and goats in Fars province, southern Iran. Materials and Methods: A total of 42 isolates of B. melitensis isolated from aborted fetuses between 2005-2011 in Fars province of Iran was used in this study. PCR assay was performed in order to detect the virB, bvfA, and ure genes using specific primers. Results and Conclusions: The frequency of bvfA, virB, and ure genes was 78.50%, 73.80%, and 88.09% among all isolates respectively. The results of the present study showed that most Brucella isolates from this region have virulence factors genes (virB, bvfA, ure) in their genome, and most B. melitensis had ure genes that has been hypothesized to play a role in the pathogenesis of disease.https://ijm.tums.ac.ir/index.php/ijm/article/view/490Brucella melitensisFars provinceGoatIranSheepVirulence genes (bvfA
spellingShingle Abdollah Derakhshandeh
Roya Firouzi
Ali Goudarztalejerd
Detection of virulence genes (bvfA, virB and ure) in Brucella melitensis isolated from aborted fetuses of sheep and goats
Iranian Journal of Microbiology
Brucella melitensis
Fars province
Goat
Iran
Sheep
Virulence genes (bvfA
title Detection of virulence genes (bvfA, virB and ure) in Brucella melitensis isolated from aborted fetuses of sheep and goats
title_full Detection of virulence genes (bvfA, virB and ure) in Brucella melitensis isolated from aborted fetuses of sheep and goats
title_fullStr Detection of virulence genes (bvfA, virB and ure) in Brucella melitensis isolated from aborted fetuses of sheep and goats
title_full_unstemmed Detection of virulence genes (bvfA, virB and ure) in Brucella melitensis isolated from aborted fetuses of sheep and goats
title_short Detection of virulence genes (bvfA, virB and ure) in Brucella melitensis isolated from aborted fetuses of sheep and goats
title_sort detection of virulence genes bvfa virb and ure in brucella melitensis isolated from aborted fetuses of sheep and goats
topic Brucella melitensis
Fars province
Goat
Iran
Sheep
Virulence genes (bvfA
url https://ijm.tums.ac.ir/index.php/ijm/article/view/490
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