Serum cytokine profile of neonatal broiler chickens infected with Salmonella Typhimurium

The avian immune system responds to Salmonella infection by expressing cytokines and chemokines. We hypothesized that the immune status of Salmonella Typhimurium (ST) challenged neonatal broilers would differ from the uninfected treatment. The objective of this experiment was to evaluate 12 cytokine...

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Main Authors: Allison Milby-Blackledge, Yuhua Farnell, Dan Zhao, Luc Berghman, Craig Laino, Melissa Muller, J. Allen Byrd, Morgan Farnell
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-02-01
Series:Frontiers in Physiology
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Online Access:https://www.frontiersin.org/articles/10.3389/fphys.2024.1359722/full
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author Allison Milby-Blackledge
Yuhua Farnell
Dan Zhao
Luc Berghman
Craig Laino
Melissa Muller
J. Allen Byrd
Morgan Farnell
author_facet Allison Milby-Blackledge
Yuhua Farnell
Dan Zhao
Luc Berghman
Craig Laino
Melissa Muller
J. Allen Byrd
Morgan Farnell
author_sort Allison Milby-Blackledge
collection DOAJ
description The avian immune system responds to Salmonella infection by expressing cytokines and chemokines. We hypothesized that the immune status of Salmonella Typhimurium (ST) challenged neonatal broilers would differ from the uninfected treatment. The objective of this experiment was to evaluate 12 cytokines. Day of hatch male chicks were randomly allocated into a control or ST challenged group. At day three of age, sterile diluent or 5.0 × 108 CFU of ST was given orally to each chick. Blood was obtained 24 h post challenge and serum separated for later analysis (n = 30 chicks/treatment). Significant (p ≤ 0.05) increases in pro-inflammatory cytokines-interleukin-6 (IL-6), IL-16, and IL-21; anti-inflammatory cytokines- IL-10; chemokines-regulated on activation, normal T cell expressed and secreted (RANTES), macrophage inflammatory protein-1β (MIP-1β), and MIP-3α; colony stimulating factors-macrophage colony-stimulating factor (M-CSF); and growth factors-vascular endothelial growth factor (VEGF) were observed in the serum of the challenged chicks when compared to the control. No significant differences were observed in IL-2, interferon gamma (IFNγ), and IFNα. These data indicate the detection of mucosal immune responses in broiler chickens following ST infection. The heightened levels of pro-inflammatory cytokines, chemokines, and colony stimulating factors align with known inflammatory mechanisms, like the influx of immune cells. However, the elevation of IL-10 was unexpected, due to its immunoregulatory properties. Notably, the rise in VEGF levels is compelling, as it suggests the possibility of tissue repair and angiogenesis in ST infected birds.
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spelling doaj.art-376065fb73cc4d0087b1a3a86d9f25132024-02-23T04:16:11ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2024-02-011510.3389/fphys.2024.13597221359722Serum cytokine profile of neonatal broiler chickens infected with Salmonella TyphimuriumAllison Milby-Blackledge0Yuhua Farnell1Dan Zhao2Luc Berghman3Craig Laino4Melissa Muller5J. Allen Byrd6Morgan Farnell7Texas A&M AgriLife Research, Department of Poultry Science, College Station, TX, United StatesTexas A&M AgriLife Research, Department of Poultry Science, College Station, TX, United StatesTexas A&M AgriLife Research, Department of Poultry Science, College Station, TX, United StatesTexas A&M AgriLife Research, Department of Poultry Science, College Station, TX, United StatesMillipore Sigma, Saint Louis, MO, United StatesMillipore Sigma, Saint Louis, MO, United StatesUnited States Department of Agriculture, Southern Plains Agricultural Research Service, College Station, TX, United StatesTexas A&M AgriLife Research, Department of Poultry Science, College Station, TX, United StatesThe avian immune system responds to Salmonella infection by expressing cytokines and chemokines. We hypothesized that the immune status of Salmonella Typhimurium (ST) challenged neonatal broilers would differ from the uninfected treatment. The objective of this experiment was to evaluate 12 cytokines. Day of hatch male chicks were randomly allocated into a control or ST challenged group. At day three of age, sterile diluent or 5.0 × 108 CFU of ST was given orally to each chick. Blood was obtained 24 h post challenge and serum separated for later analysis (n = 30 chicks/treatment). Significant (p ≤ 0.05) increases in pro-inflammatory cytokines-interleukin-6 (IL-6), IL-16, and IL-21; anti-inflammatory cytokines- IL-10; chemokines-regulated on activation, normal T cell expressed and secreted (RANTES), macrophage inflammatory protein-1β (MIP-1β), and MIP-3α; colony stimulating factors-macrophage colony-stimulating factor (M-CSF); and growth factors-vascular endothelial growth factor (VEGF) were observed in the serum of the challenged chicks when compared to the control. No significant differences were observed in IL-2, interferon gamma (IFNγ), and IFNα. These data indicate the detection of mucosal immune responses in broiler chickens following ST infection. The heightened levels of pro-inflammatory cytokines, chemokines, and colony stimulating factors align with known inflammatory mechanisms, like the influx of immune cells. However, the elevation of IL-10 was unexpected, due to its immunoregulatory properties. Notably, the rise in VEGF levels is compelling, as it suggests the possibility of tissue repair and angiogenesis in ST infected birds.https://www.frontiersin.org/articles/10.3389/fphys.2024.1359722/fullimmune responseimmunoassaypoultryserum cytokineSalmonella Typhimurium
spellingShingle Allison Milby-Blackledge
Yuhua Farnell
Dan Zhao
Luc Berghman
Craig Laino
Melissa Muller
J. Allen Byrd
Morgan Farnell
Serum cytokine profile of neonatal broiler chickens infected with Salmonella Typhimurium
Frontiers in Physiology
immune response
immunoassay
poultry
serum cytokine
Salmonella Typhimurium
title Serum cytokine profile of neonatal broiler chickens infected with Salmonella Typhimurium
title_full Serum cytokine profile of neonatal broiler chickens infected with Salmonella Typhimurium
title_fullStr Serum cytokine profile of neonatal broiler chickens infected with Salmonella Typhimurium
title_full_unstemmed Serum cytokine profile of neonatal broiler chickens infected with Salmonella Typhimurium
title_short Serum cytokine profile of neonatal broiler chickens infected with Salmonella Typhimurium
title_sort serum cytokine profile of neonatal broiler chickens infected with salmonella typhimurium
topic immune response
immunoassay
poultry
serum cytokine
Salmonella Typhimurium
url https://www.frontiersin.org/articles/10.3389/fphys.2024.1359722/full
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