Hepatic transcriptomic analysis reveals differential regulation of metabolic and immune pathways in three strains of chickens with distinct growth rates exposed to mixed parasite infections.

Ascaridia galli Heterakis gallinarum Histomonas meleagridis Growth performance immune response metabolic response resource allocation trade-off

Journal

Veterinary research
ISSN: 1297-9716
Titre abrégé: Vet Res
Pays: England
ID NLM: 9309551

Informations de publication

Date de publication:
28 Sep 2024
Historique:
received: 04 06 2024
accepted: 25 07 2024
medline: 29 9 2024
pubmed: 29 9 2024
entrez: 28 9 2024
Statut: epublish

Résumé

During parasite infections, the liver may prioritise immune-related pathways over its metabolic functions. Intestinal infections caused by Ascaridia galli and Heterakis gallinarum impair feed intake, nutrient absorption, and weight gain. Histomonas meleagridis, vectored by H. gallinarum, can also damage liver tissues, potentially impairing liver functions. This study examined the hepatic gene expression in three strains of chickens: Ross-308 (R), Lohmann Brown Plus (LB), and Lohmann Dual (LD), 2 weeks after an experimental infection (n = 18) with both A. galli and H. gallinarum or kept as uninfected control (n = 12). Furthermore, H. gallinarum infection led to a co-infection with H. meleagridis. The mixed infections reduced feed intake and the average daily weight gain (P < 0.001). The infections also increased the plasma concentrations of alpha (1)-acid glycoprotein and the antibody titre against H. meleagridis (P = 0.049), with no strain differences (P > 0.05). For host molecular response, 1887 genes were differentially expressed in LD, while 275 and 25 genes were differentially expressed in R and LB, respectively. The up-regulated genes in R and LD were mostly related to inflammatory and adaptive immune responses, while down-regulated genes in LD were involved in metabolic pathways, including gluconeogenesis. Despite performance differences among the strains, worm burdens were similar, but hepatic molecular responses differed significantly. Moreover, there was an indication of a shift in hepatic functions towards immune-related pathways. We, therefore, conclude that the liver shifts its functions from metabolic to immune-related activities in chickens when challenged with mixed parasite species.

Identifiants

pubmed: 39342330
doi: 10.1186/s13567-024-01378-8
pii: 10.1186/s13567-024-01378-8
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

125

Subventions

Organisme : H2020 Marie Skłodowska-Curie Actions
ID : 955374

Informations de copyright

© 2024. The Author(s).

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Auteurs

Oyekunle John Oladosu (OJ)

Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany.

Henry Reyer (H)

Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany.

Rosemarie Weikard (R)

Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany.

Beatrice Grafl (B)

Clinic for Poultry and Fish Medicine, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210, Vienna, Austria.

Dieter Liebhart (D)

Clinic for Poultry and Fish Medicine, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210, Vienna, Austria.

Cornelia C Metges (CC)

Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany.

Christa Kühn (C)

Friedrich-Loeffler-Institute, Federal Research Institute for Animal Health, Südufer 10, 17493, Greifswald-Insel Riems, Germany.
Agricultural and Environmental Faculty, University Rostock, Justus-Von-Liebig-Weg 6, 18059, Rostock, Germany.

Gürbüz Daş (G)

Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany. gdas@fbn-dummerstorf.de.

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