Effects of Salmonella enteritidis Vaccination on the Expression of Innate Immune Molecules and Histone Modifications in the Follicular Theca of Laying Hens

The aim of this study was to examine whether Salmonella enteritidis (SE) vaccination affects innate immune function and histone modifications responsible for epigenetic reprogramming in the follicular theca of laying hens. White Leghorn laying hens were administered the SE vaccine or phosphate buffe...

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Main Authors: Ye Kang, Takahiro Nii, Naoki Isobe, Yukinori Yoshimura
Format: Article
Language:English
Published: Japan Poultry Science Association 2019-10-01
Series:The Journal of Poultry Science
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jpsa/56/4/56_0190034/_html/-char/en
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author Ye Kang
Takahiro Nii
Naoki Isobe
Yukinori Yoshimura
author_facet Ye Kang
Takahiro Nii
Naoki Isobe
Yukinori Yoshimura
author_sort Ye Kang
collection DOAJ
description The aim of this study was to examine whether Salmonella enteritidis (SE) vaccination affects innate immune function and histone modifications responsible for epigenetic reprogramming in the follicular theca of laying hens. White Leghorn laying hens were administered the SE vaccine or phosphate buffered saline (PBS; control) one week before sample collection. The largest follicles (F1) were collected for total RNA and histone protein extraction. Gene expression levels of immune molecules (Toll-like receptors [TLRs], cytokines, and avian β-defensins [AvBDs]), and histone modifications in the follicular thecal tissues, were examined using real-time PCR and western blot, respectively. The results showed that the expression levels of TLR1-1, 2-1, 4, and 15 were upregulated by SE vaccination. Although vaccination caused no significant change in cytokine expression, AvBDl, 2, 4, and 7 expression levels were significantly upregulated in the vaccinated group. In addition, the relative density of histone H3-lysine9 dimethylation (H3K9me2) was increased by the vaccination. These results suggest that SE vaccination enhances innate immune functions in the ovary of laying hens, including upregulating TLR and AvBD expression, and is also associated with an increase in histone H3K9me2 in thecal cells.
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spelling doaj.art-03bcde12bbaf4ac697a0214c2b115b402023-05-30T01:24:51ZengJapan Poultry Science AssociationThe Journal of Poultry Science1346-73951349-04862019-10-0156429830710.2141/jpsa.0190034jpsaEffects of Salmonella enteritidis Vaccination on the Expression of Innate Immune Molecules and Histone Modifications in the Follicular Theca of Laying HensYe Kang0Takahiro Nii1Naoki Isobe2Yukinori Yoshimura3Graduate School of Biosphere Science, Hiroshima UniversityGraduate School of Biosphere Science, Hiroshima UniversityGraduate School of Biosphere Science, Hiroshima UniversityGraduate School of Biosphere Science, Hiroshima UniversityThe aim of this study was to examine whether Salmonella enteritidis (SE) vaccination affects innate immune function and histone modifications responsible for epigenetic reprogramming in the follicular theca of laying hens. White Leghorn laying hens were administered the SE vaccine or phosphate buffered saline (PBS; control) one week before sample collection. The largest follicles (F1) were collected for total RNA and histone protein extraction. Gene expression levels of immune molecules (Toll-like receptors [TLRs], cytokines, and avian β-defensins [AvBDs]), and histone modifications in the follicular thecal tissues, were examined using real-time PCR and western blot, respectively. The results showed that the expression levels of TLR1-1, 2-1, 4, and 15 were upregulated by SE vaccination. Although vaccination caused no significant change in cytokine expression, AvBDl, 2, 4, and 7 expression levels were significantly upregulated in the vaccinated group. In addition, the relative density of histone H3-lysine9 dimethylation (H3K9me2) was increased by the vaccination. These results suggest that SE vaccination enhances innate immune functions in the ovary of laying hens, including upregulating TLR and AvBD expression, and is also associated with an increase in histone H3K9me2 in thecal cells.https://www.jstage.jst.go.jp/article/jpsa/56/4/56_0190034/_html/-char/enhistone modificationinnate immunitylaying henovarysalmonella enteritidis vaccine
spellingShingle Ye Kang
Takahiro Nii
Naoki Isobe
Yukinori Yoshimura
Effects of Salmonella enteritidis Vaccination on the Expression of Innate Immune Molecules and Histone Modifications in the Follicular Theca of Laying Hens
The Journal of Poultry Science
histone modification
innate immunity
laying hen
ovary
salmonella enteritidis vaccine
title Effects of Salmonella enteritidis Vaccination on the Expression of Innate Immune Molecules and Histone Modifications in the Follicular Theca of Laying Hens
title_full Effects of Salmonella enteritidis Vaccination on the Expression of Innate Immune Molecules and Histone Modifications in the Follicular Theca of Laying Hens
title_fullStr Effects of Salmonella enteritidis Vaccination on the Expression of Innate Immune Molecules and Histone Modifications in the Follicular Theca of Laying Hens
title_full_unstemmed Effects of Salmonella enteritidis Vaccination on the Expression of Innate Immune Molecules and Histone Modifications in the Follicular Theca of Laying Hens
title_short Effects of Salmonella enteritidis Vaccination on the Expression of Innate Immune Molecules and Histone Modifications in the Follicular Theca of Laying Hens
title_sort effects of salmonella enteritidis vaccination on the expression of innate immune molecules and histone modifications in the follicular theca of laying hens
topic histone modification
innate immunity
laying hen
ovary
salmonella enteritidis vaccine
url https://www.jstage.jst.go.jp/article/jpsa/56/4/56_0190034/_html/-char/en
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