Molecular mechanisms of growth depression in broiler chickens (Gallus Gallus domesticus) mediated by immune stress: a hepatic proteome study
文献类型： 外文期刊
作者： Zheng, Aijuan 1 ; Zhang, Anrong 1 ; Chen, Zhimin 1 ; Pirzado, Shoaib Ahmed 1 ; Chang, Wenhuan 1 ; Cai, Huiyi 1 ; Bryde 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Feed Res, Minist Agr & Rural Affairs, Key Lab Feed Biotechnol, 12 Zhongguancun South St, Beijing 100081, Peoples R China
2.Univ Queensland, Sch Agr & Food Sci, Gatton, Qld 4343, Australia
关键词： Broiler chickens; Hepatic proteome; Immune stress; Lipopolysaccharide
期刊名称：JOURNAL OF ANIMAL SCIENCE AND BIOTECHNOLOGY （ 影响因子：5.032； 五年影响因子：5.922 ）
ISSN： 1674-9782
年卷期： 2021 年 12 卷 1 期
页码：
收录情况： SCI
摘要： BackgroundImmunological stress decreases feed intake, suppresses growth and induces economic losses. However, the underlying molecular mechanism remains unclear. Label-free liquid chromatography and mass spectrometry (LC-MS) proteomics techniques were employed to investigate effects of immune stress on the hepatic proteome changes of Arbor Acres broilers (Gallus Gallus domesticus) challenged with Escherichia coli lipopolysaccharide (LPS).ResultsProteomic analysis indicated that 111 proteins were differentially expressed in the liver of broiler chickens from the immune stress group. Of these, 28 proteins were down-regulated, and 83 proteins were up-regulated in the immune stress group. Enrichment analysis showed that immune stress upregulated the expression of hepatic proteins involved in defense function, amino acid catabolism, ion transport, wound healing, and hormone secretion. Furthermore, immune stress increased valine, leucine and isoleucine degradation pathways.ConclusionThe data suggests that growth depression of broiler chickens induced by immune stress is triggered by hepatic proteome alterations, and provides a new insight into the mechanism by which immune challenge impairs poultry production.
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