Molecular Survey of Brucella melitensis Field Isolates using Sequence-Based PCR of Outer Membrane Protein 31

Document Type : Original Articles

Authors

1 Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran

2 Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Arak, Iran

Abstract

Sequence-based Polymerase Chain Reaction (PCR) has been introduced as an effective and reliable method for bacterial strain typing, which could provide a reliable typing approach for clinical laboratories. This study aimed to describe the reproducibility and performance of the Outer Membrane Protein 31 (Omp31)-based PCR, as a molecular genotyping tool for Brucella melitensis (B. melitensis) typing. The 31 KD outer-membrane protein of Brucella, which encodes the Omp31 gene, can be applied as an antigen to diagnose brucellosis. For this purpose, 146 samples were taken from human blood samples, bovine and camel lymph nodes, as well as sheep and goat aborted fetuses, including fetal kidney, abomasum, liver, lung, spleen, and heart for bacteriological investigation. The molecular detection of the Omp31 and IS711 genes was performed using the isolated B. melitensis (n=14). The sequencing of the Omp31 gene of B. melitensis in the Iranian field isolates was also performed for the whole gene sequencing. The homology of all sequences was then checked with the reported National Center for Biotechnology Information sequences using a basic local alignment search tool for the nucleotide diversity evaluation.  The findings revealed that B. melitensis isolates were recovered from 14 examined cases and confirmed by the IS711-based PCR with a PCR product of 731 bp. Moreover, 14 Iranian B. melitensis sequences clustered together as a monophyletic grouping with bootstrap support of 63, and they were closely related to the B. melitensis reference isolates. This Omp31-based phylogenetic placement strongly indicates the monophyletic origin of the Iranian B. melitensis in different animals and human hosts.

Keywords


  1. Haileselassie M, Kalayou S, Kyule M, Asfaha M, Belihu K. Effect of Brucella infection on reproduction conditions of female breeding cattle and its public health significance in Western Tigray, northern Ethiopia. Vet Med Int. 2011;2011.
  2. Addis M. Public health and economic importance of brucellosis: A review. Public Health. 2015;5(7):68-84.
  3. Tibor A, Decelle B, Letesson J-J. Outer membrane proteins Omp10, Omp16, and Omp19 of Brucella spp. are lipoproteins. Infect Immun. 1999;67(9):4960-2.
  4. Cloeckaert A, Vizcaı́no N, Paquet J-Y, Bowden RA, Elzer PH. Major outer membrane proteins of Brucella spp.: past, present and future. Vet Microbiol. 2002;90(1-4):229-47.
  5. Gupta V, Verma D, Singh S, Vihan V. Serological diagnostic potential of recombinant outer membrane protein (Omp31) from Brucella melitensis in goat and sheep brucellosis. Small Rumin Res. 2007;70(2-3):260-6.
  6. Nazifi N, Tahmoorespur M, Sekhavati MH, Haghparast A, Behroozikhah MA. Engineering, Cloning and Expression of DNA Sequence Coding of OMP31 Epitope of Brucella melitensis linked to IL-2 in Escherichia coli. Int J Infect. 2018;5(3).
  1. Gupta V, Shivasharanappa N, Kumar V, Kumar A. Diagnostic evaluation of serological assays and different gene based PCR for detection of Brucella melitensis in goat. Small Rumin Res. 2014;117(1):94-102.
  2. Moriyón I, López-Goñi I. Structure and properties of the outer membranes of Brucella abortus and Brucella melitensis. Int Microbiol. 1998;1(1):19-26..
  3. Bai Q, Li H, Wu X, Shao J, Sun M, Yin D. Comparative analysis of the main outer membrane proteins of Brucella in the diagnosis of brucellosis. Biochem Biophys Res Commun. 2021;560:126-31.
  4. Vizcaino N, Verger J-M, Grayon M, Zygmunt MS, Cloeckaert A. DNA polymorphism at the omp-31 locus of Brucella spp.: evidence for a large deletion in Brucella abortus, and other species-specific markers. Microbiology. 1997;143(9):2913-21.
  5. Gupta VK, Nayakwadi S, Kumar A, Gururaj K, Kumar A, Pawaiya RS. Markers for the molecular diagnosis of brucellosis in animals. Adv Anim Vet Sci. 2014;2(3):31-9.
  6. Singh A, Gupta VK, Kumar A, Singh VK, Nayakwadi S. 16S rRNA and omp31 gene based molecular characterization of field strains of B. melitensis from aborted foetus of goats in India. Sci. World J. 2013;2013.
  7. Chart H, Okubadejo O, Rowe B. The serological relationship between Escherichia coli O157 and Yersinia enterocolitica O9 using sera from patients with brucellosis. Epidemiol Infect. 1992;108(1):77-85.
  8. Baldi PC, Giambartolomei GH, Goldbaum FA, Abdon LF, Velikovsky CA, Kittelberger R, et al. Humoral immune response against lipopolysaccharide and cytoplasmic proteins of Brucella abortus in cattle vaccinated with B. abortus S19 or experimentally infected with Yersinia enterocolitica serotype 0: 9. Clin Diagn Lab Immunol. 1996;3(4):472.
  9. Alton G, Jones L, Angus R, Verges J. Techniques for the brucellosis laboratory Paris Institute National de la Recherche Agronomique. J Clin Microbiol. 1988;33:3198-200.
  1. Ewalt DR, Bricker BJ. Validation of the Abbreviated BrucellaAMOS PCR as a Rapid Screening Method for Differentiation ofBrucella abortus Field Strain Isolates and the Vaccine Strains, 19 and RB51. J clin Microbiol. 2000;38(8):3085-6.
  2. Tamura K, Stecher G, Peterson D, Filipski A, Kumar S. MEGA6: molecular evolutionary genetics analysis version 6.0. Mol Biol Evol. 2013;30(12):2725-9.
  3. Gupta V, Verma DK, Rout P, Singh S, Vihan V. Polymerase chain reaction (PCR) for detection of Brucella melitensis in goat milk. Small Rumin Res. 2006;65(1-2):79-84.
  4. Omer KS, Ramlan M, Arshad M, Hirzahida M, Shuhaila MS, Hardy AD, et al. Molecular characterization and Bioinformatics analysis of 31 kDa major outer membrane protein gene of Brucella melitensis, Malaysian isolate. Res Opin Anim Vet Sci. 2016;6(7):218-23.
  5. Yu WL, Nielsen K. Review of detection of Brucella spp. by polymerase chain reaction. Croat Med J. 2010;51(4):306-13.
  6. Dadar M, Alamian S, Behrozikhah AM, Yazdani F, Kalantari A, Etemadi A, et al., editors. Molecular identification of Brucella species and biovars associated with animal and human infection in Iran. Veterinary Research Forum; 2019: Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
  7. Amoupour M, Nezamzadeh F, Bialvaei A, Sedighi M, Jazi F, Alikhani M, et al. Differentiation of Brucella abortus and B. ámelitensis biovars using PCR-RFLP and REP-PCR. New Microbes New Infect. 2019;32:100589.
  8. Dahouk SA, Tomaso H, Prenger-Berninghoff E, Splettstoesser WD, Scholz HC, Neubauer H. Identification of Brucella species and biotypes using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Crit Rev Microbiol. 2005;31(4):191-6.
  9. Rajagunalan S, Kumari G, Gupta S, Kumar A, Agarwal R, Rawool D, et al. Molecular characterization of Omp31 gene of Indian field Isolates of Brucella melitensis. Indian J Anim Sci. 2013;83:673-7.