Cholera toxin (CT) is one of the most well-known immunostimulants. Mammalian studies have shown that CT can generate immune responses against antigen. However, it has not exhibited a definite effect on poultry yet. In this study, focusing on a cost-effective method, the effect of different concentrations of CT obtained from Vibrio cholerae biotype El Tor and serotype Inaba was investigated on the immunogenicity of infectious bronchitis vaccine. After culturing and concentrating CT, different concentrations of CT (0.1, 1, 2, and 5 micrograms) were combined with avian infectious bronchitis vaccine strain H120 produced by Razi Vaccine and Serum Research Institute (RVSRI) and, at 7 days of age, inoculated via the eye drop administration in 42 specific-pathogen-free chickens (seven groups of six chicks that included four experimental groups, two negative control groups (PBS and toxin), and one positive control group). Blood samples were taken weekly from the wing veins of the chickens, and the immunoglobulin G (IgG) titer was checked by enzyme-linked immunosorbent assay. The results showed that 2 µg of CT in comparison with other concentrations caused a significant increase in the antibody titer against avian infectious bronchitis in the blood serums of the chickens. One-way ANOVA test showed that all the results of this study were significant at P<0.05 level. Our data show that CT has the potential to further stimulate the immune system of chickens and may increase the immunogenicity of the infectious bronchitis vaccine. However, more research is needed to examine all aspects of the use of this toxin in animal vaccines. |
- Barberis A, Alloui N, Bennoun O, Agabou A. Infectious Bronchitis in Poultry: Constraints and Biotechnological Developments in Vaccines. Asian J Poult Sci. 2015;9(2):57-69.
2. Nazmi A, Hauck R, Corbeil LB, Gallardo RA. The effect of diatomaceous earth in live, attenuated infectious bronchitis vaccine, immune responses, and protection against challenge. Poult. Sci. 2017;96(8):2623-9. 3. Bwala DG, Clift S, Duncan NM, Bisschop SP, Oludayo FF. Determination of the distribution of lentogenic vaccine and virulent Newcastle disease virus antigen in the oviduct of SPF and commercial hen using immunohistochemistry. Res Vet Sci. 2012;93(1):520-8. 4. Cavanagh D. Severe acute respiratory syndrome vaccine development: experiences of vaccination against avian infectious bronchitis coronavirus. Avian Pathol. 2003;32(6):567-82. 5. Cook JK, Jackwood M, Jones R. The long view: 40 years of infectious bronchitis research. Avian Pathol. 2012;41(3):239-50. 6. Spickler AR, Roth JA. Adjuvants in veterinary vaccines: modes of action and adverse effects. Journal of Veterinary Internal Medicine. 2003;17(3):273-81. 7. Meeusen EN, Walker J, Peters A, Pastoret P-P, Jungersen G. Current status of veterinary vaccines. Clin Microbiol Rev. 2007;20(3):489-510. 8. Zhao K, Chen G, Shi X-m, Gao T-t, Li W, Zhao Y, et al. Preparation and efficacy of a live newcastle disease virus vaccine encapsulated in chitosan nanoparticles. PloS One. 2012;7(12):53314. 9. Kjærup RM, Dalgaard TS, Norup LR, Bergman I-M, Sørensen P, Juul-Madsen HR. Adjuvant effects of mannose-binding lectin ligands on the immune response to infectious bronchitis vaccine in chickens with high or low serum mannose-binding lectin concentrations. Immunobiology. 2014;219(4):263-74. 10. Deville S, Arous JB, Bertrand F, Borisov V, Dupuis L. Efficacy of intranasal and spray delivery of adjuvanted live vaccine against infectious bronchitis virus in experimentally infected poultry. Procedia Vaccinol. 2012;6:85-92. 11. Sánchez J, Holmgren J. Cholera toxin—a foe & a friend. Indian J Med Res. 2011;133(2):153. 12. Braun MC, He J, Wu C-Y, Kelsall BL. Cholera toxin suppresses interleukin (IL)-12 production and IL-12 receptor β1 and β2 chain expression. J Exp Med. 1999;189(3):541-52. 13. Klimpel GR, Asuncion M, Haithcoat J, Niesel DW. Cholera toxin and Salmonella typhimurium induce different cytokine profiles in the gastrointestinal tract. Infect Immun. 1995;63(3):1134-7. 14. Wilson AD, Bailey M, Williams NA, Stokes CR. The in vitro production of cytokines by mucosal lymphocytes immunized by oral administration of keyhole limpet hemocyanin using cholera toxin as an adjuvant. Eur J Immunol. 1991;21(10):2333-9. 15. Akhiani A, NILSSON LÅ, OUCHTERLONY Ö. Intranasal administration of Schistosoma mansoni adult worm antigen in combination with cholera toxin induces a Th2 cell response. Parasite Immunol. 1997;19(4):183-90. 16. Stratmann T. Cholera toxin subunit B as adjuvant––an accelerator in protective immunity and a break in autoimmunity. Vaccines. 2015;3(3):579-96. 17. Atlas RM. Handbook of Microbiological Media. 4th Edition ed. Washington D. C.: CRC Press; 2010. 288-482 p. 18. CDC. Laboratory methods for the diagnosis of Vibrio cholerae. Atlanta, GA. 1994;500:38-67. 19. Ohtomo N, Muraoka T, Tashiro A, Zinnaka Y, Amako K. Size and Structure of the Cholera Toxin Molecule and Its Subunits. J Infect Dis. 1976;133(Supplement 1):S31-S40. 20. Smith J, Sadeyen J-R, Cavanagh D, Kaiser P, Burt DW. The early immune response to infection of chickens with Infectious Bronchitis Virus (IBV) in susceptible and resistant birds. BMC Vet Res. 2015;11(1):256. 21. Toro H, Pennington D, Gallardo RA, Van Santen VL, Van Ginkel FW, Zhang J, et al. Infectious bronchitis virus subpopulations in vaccinated chickens after challenge. Avian Dis. 2012;56(3):501-8. 22. Eriksson K, Fredriksson M, Nordström I, Holmgren J. Cholera toxin and its B subunit promote dendritic cell vaccination with different influences on Th1 and Th2 development. Infect Immun. 2003;71(4):1740-7. 23. George-Chandy A, Eriksson K, Lebens M, Nordström I, Schön E, Holmgren J. Cholera toxin B subunit as a carrier molecule promotes antigen presentation and increases CD40 and CD86 expression on antigen-presenting cells. Infect Immun. 2001;69(9):5716-25. 24. Lebens M, Terrinoni M, Karlsson SL, Larena M, Gustafsson-Hedberg T, Källgård S, et al. Construction and preclinical evaluation of mmCT, a novel mutant cholera toxin adjuvant that can be efficiently produced in genetically manipulated Vibrio cholerae. Vaccine. 2016;34(18):2121-8. 25. Meinersmann RJ, Porter RE. Effect of Vibrio cholerae Toxin on Oral Immunization of Chickens. Avian Dis. 1993;37(2):427-32. 26. Quéré P, Girard F. Systemic adjuvant effect of cholera toxin in the chicken. Vet Immunol Immunopathol. 1999;70(1):135-41. 27. Snider DP. The mucosal adjuvant activities of ADP-ribosylating bacterial enterotoxins. Critical Reviews™ in Immunology. 2017;15(3-4):499-530. 28. Tohidi E, Ghaniei A, Farzin H, Haghparast A. Humoral immunity provided by a novel infectious bronchitis vaccine supplemented by bacterium-like particles (BLPs). Turk J Vet Anim Sci. 2020;44(3):534-41. 29. Abodalal SA. Preparation And Evaluation Of Adjuvanted Live Vaccine Against Infectious Bronchitis. Egypt J Agric Res. 2017;95:1327-37. 30. Di Pasquale A, Preiss S, Tavares Da Silva F, Garçon N. Vaccine Adjuvants: from 1920 to 2015 and Beyond. Vaccines. 2015;3(2):320-43.
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