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Immune Activation Following Vaccination of Streptococcus iniae Bacterin in Asian Seabass (Lates calcarifer, Bloch 1790)

Juvenile Asian seabass (Lates calcarifer) (body weight 10 ± 0.7 g) were intraperitoneally injected with 10(12) CFU fish(−1) of formalin-killed Streptococcus iniae. The protective efficacy of the vaccine on survival and infection rate was assessed upon challenge at 4, 8, 12, 20, and 28 weeks post-vac...

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Autores principales: Tanpichai, Pornpawit, Chaweepack, Surachart, Senapin, Saengchan, Piamsomboon, Patharapol, Wongtavatchai, Janenuj
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9963699/
https://www.ncbi.nlm.nih.gov/pubmed/36851232
http://dx.doi.org/10.3390/vaccines11020351
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author Tanpichai, Pornpawit
Chaweepack, Surachart
Senapin, Saengchan
Piamsomboon, Patharapol
Wongtavatchai, Janenuj
author_facet Tanpichai, Pornpawit
Chaweepack, Surachart
Senapin, Saengchan
Piamsomboon, Patharapol
Wongtavatchai, Janenuj
author_sort Tanpichai, Pornpawit
collection PubMed
description Juvenile Asian seabass (Lates calcarifer) (body weight 10 ± 0.7 g) were intraperitoneally injected with 10(12) CFU fish(−1) of formalin-killed Streptococcus iniae. The protective efficacy of the vaccine on survival and infection rate was assessed upon challenge at 4, 8, 12, 20, and 28 weeks post-vaccination. The results revealed that the challenged vaccinated fish showed no mortality at all time points, and the control fish presented 10–43.33% mortality. The infection rate at 2 weeks post-challenge was 0–13.33% in the vaccinated fish and 30–82.35% in the control group. At 8 weeks post-vaccination, the vaccinated fish showed comparable ELISA antibody levels with the control; however, the antibody levels of the vaccinated fish increased significantly after the challenge (p < 0.05), suggesting the presence of an adaptive response. Innate immune genes, including MHC I, MHC II, IL-1β, IL-4/13B, and IL-10, were significantly upregulated at 12 h post-challenge in the vaccinated fish but not in the control. In summary, vaccination with S. iniae bacterin provided substantial protection by stimulating the innate and specific immune responses of Asian seabass against S. iniae infection.
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spelling pubmed-99636992023-02-26 Immune Activation Following Vaccination of Streptococcus iniae Bacterin in Asian Seabass (Lates calcarifer, Bloch 1790) Tanpichai, Pornpawit Chaweepack, Surachart Senapin, Saengchan Piamsomboon, Patharapol Wongtavatchai, Janenuj Vaccines (Basel) Article Juvenile Asian seabass (Lates calcarifer) (body weight 10 ± 0.7 g) were intraperitoneally injected with 10(12) CFU fish(−1) of formalin-killed Streptococcus iniae. The protective efficacy of the vaccine on survival and infection rate was assessed upon challenge at 4, 8, 12, 20, and 28 weeks post-vaccination. The results revealed that the challenged vaccinated fish showed no mortality at all time points, and the control fish presented 10–43.33% mortality. The infection rate at 2 weeks post-challenge was 0–13.33% in the vaccinated fish and 30–82.35% in the control group. At 8 weeks post-vaccination, the vaccinated fish showed comparable ELISA antibody levels with the control; however, the antibody levels of the vaccinated fish increased significantly after the challenge (p < 0.05), suggesting the presence of an adaptive response. Innate immune genes, including MHC I, MHC II, IL-1β, IL-4/13B, and IL-10, were significantly upregulated at 12 h post-challenge in the vaccinated fish but not in the control. In summary, vaccination with S. iniae bacterin provided substantial protection by stimulating the innate and specific immune responses of Asian seabass against S. iniae infection. MDPI 2023-02-03 /pmc/articles/PMC9963699/ /pubmed/36851232 http://dx.doi.org/10.3390/vaccines11020351 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tanpichai, Pornpawit
Chaweepack, Surachart
Senapin, Saengchan
Piamsomboon, Patharapol
Wongtavatchai, Janenuj
Immune Activation Following Vaccination of Streptococcus iniae Bacterin in Asian Seabass (Lates calcarifer, Bloch 1790)
title Immune Activation Following Vaccination of Streptococcus iniae Bacterin in Asian Seabass (Lates calcarifer, Bloch 1790)
title_full Immune Activation Following Vaccination of Streptococcus iniae Bacterin in Asian Seabass (Lates calcarifer, Bloch 1790)
title_fullStr Immune Activation Following Vaccination of Streptococcus iniae Bacterin in Asian Seabass (Lates calcarifer, Bloch 1790)
title_full_unstemmed Immune Activation Following Vaccination of Streptococcus iniae Bacterin in Asian Seabass (Lates calcarifer, Bloch 1790)
title_short Immune Activation Following Vaccination of Streptococcus iniae Bacterin in Asian Seabass (Lates calcarifer, Bloch 1790)
title_sort immune activation following vaccination of streptococcus iniae bacterin in asian seabass (lates calcarifer, bloch 1790)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9963699/
https://www.ncbi.nlm.nih.gov/pubmed/36851232
http://dx.doi.org/10.3390/vaccines11020351
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