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Tytuł pozycji:

Effects of administration of probiotic lactobacilli on immunity conferred by the herpesvirus of turkeys vaccine against challenge with a very virulent Marek's disease virus in chickens.

Tytuł:
Effects of administration of probiotic lactobacilli on immunity conferred by the herpesvirus of turkeys vaccine against challenge with a very virulent Marek's disease virus in chickens.
Autorzy:
Bavananthasivam J; Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
Alizadeh M; Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
Astill J; Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
Alqazlan N; Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
Matsuyama-Kato A; Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
Shojadoost B; Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
Taha-Abdelaziz K; Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada; Pathology Department, Faculty of Veterinary Medicine, Beni-Suef University, Al Shamlah 62511, Beni-Suef, Egypt.
Sharif S; Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada. Electronic address: .
Źródło:
Vaccine [Vaccine] 2021 Apr 22; Vol. 39 (17), pp. 2424-2433. Date of Electronic Publication: 2021 Mar 27.
Typ publikacji:
Journal Article; Research Support, Non-U.S. Gov't
Język:
English
Imprint Name(s):
Publication: Amsterdam, The Netherlands : Elsevier Science
Original Publication: [Guildford, Surrey, UK] : Butterworths, [c1983-
MeSH Terms:
Herpesvirus 2, Gallid*
Marek Disease*/prevention & control
Probiotics*
Animals ; Chick Embryo ; Chickens ; Lactobacillus ; Turkeys
Contributed Indexing:
Keywords: Chickens; Cytokines; Herpesvirus of turkeys; Lactobacillus; Marek’s disease; Probiotics
Entry Date(s):
Date Created: 20210330 Date Completed: 20210524 Latest Revision: 20210524
Update Code:
20240105
DOI:
10.1016/j.vaccine.2021.03.046
PMID:
33781599
Czasopismo naukowe
Several vaccines have been used to control Marek's disease (MD) in chickens. However, the emergence of new strains of Marek's disease virus (MDV) imposes a threat to vaccine efficacy. Therefore, the current study was carried out to investigate whether concurrent administration of probiotics with the herpesvirus of turkeys (HVT) vaccine enhances its protective efficacy against MDV infection. In this regard, a cocktail comprised of four Lactobacillus species was administered with HVT to chicken embryos at embryonic day 18 (ED18) and/or from day 1 to day 4 post-hatch. The results revealed that the administration of a probiotic Lactobacillus with HVT at ED18 followed by oral gavage with the same lactobacilli cocktail to newly hatched chicks for the first 4 days post-hatch increased the expression of major histocompatibility complex (MHC) II on macrophages and B cells in spleen and decreased the number of CD4 + CD25 + T regulatory cells in the spleen. Subsequently, chicks were infected with MDV. The chickens that received in ovo HVT and lactobacilli or HVT had higher expression of IFN-α at 21dpi in the spleen compared to the chickens that were challenged with MDV. Also, the expression of IFN-β in cecal tonsils at 10dpi was higher in the groups that received in ovo HVT and lactobacilli and oral lactobacilli compared to the group that received in ovo HVT alone. Moreover, the expression of tumor growth factor (TGF)-β4 at 4 days post-infection was reduced in the group that received both HVT and probiotics at ED18. Additionally, concurrent probiotics administration reduced tumor incidence by half when compared to HVT vaccine alone indicating enhancing effect of lactobacilli with HVT vaccine on host immune responses. In conclusion, these findings suggest the potential use of probiotic lactobacilli as adjuvants with the HVT vaccine against MDV infection in chickens.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2021. Published by Elsevier Ltd.)

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