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Combined transcriptome and metabolome analysis of stable knockdown and overexpression of the CD8A gene in chicken T lymphocytes

文献类型： 外文期刊

作者： Du, Yanli 1 ; Wang, Kun 4 ; Zi, Xiannian 4 ; Wang, Xiao 1 ; Li, Meiquan 1 ; Zhang, Bo 1 ; Ran, Jinshan 1 ; Huang, Wei 1 ; Wang, Jing 1 ; Dong, Cuilian 1 ; Xiang, Hanyi 2 ; Lei, Li 2 ; Ge, Changrong 4 ; Liu, Yong 2 ;

作者机构： 1.Kunming Univ, Coll Agron & Life Sci, Kunming 650200, Yunnan, Peoples R China

2.Yunnan Open Univ, Yunnan Rural Revitalizat Educ Inst, Kunming 650101, Yunnan, Peoples R China

3.Chinese Acad Agr Sci, Guangxi Bufialo Res Inst, Key Lab Buffalo Genet Breeding & Reprod Technol, Nanning 530001, Peoples R China

4.Yunnan Agr Univ, Coll Anim Sci & Technol, Kunming 650201, Yunnan, Peoples R China

关键词： CD8A; Interference; Overexpression; Transcriptome analysis; Metabolome analysis

期刊名称：POULTRY SCIENCE （ 影响因子：4.2； 五年影响因子：4.5 ）

ISSN： 0032-5791

年卷期： 2025 年 104 卷 2 期

页码：

收录情况： SCI

摘要： CD8 subunit alpha (CD8A) is an important gene in immunity and is involved in the functional regulation of T lymphocytes. However, the specific role and regulatory mechanism of CD8A in chicken T lymphocytes remain unknown. In this study, we overexpressed and interfered with CD8A in chicken T lymphocytes and found that interfering with CD8A expression inhibited the proliferation and induced the apoptosis of T lymphocytes and that the overexpression of CD8A promoted T lymphocyte activation. Additionally, transcriptomic and metabolomic analyses of chicken T lymphocytes with CD8A overexpression or interference were performed. The over- expression and interference of the CD8A gene caused widespread changes in gene and metabolite expression in chicken T cells. The results of the transcriptome analysis revealed that differentially expressed genes (DEGs) caused by altered expression of the CD8A gene were associated with multiple "neuroactive ligand-receptor interaction", "cell adhesion molecules", "calcium signaling pathway", etc. The metabolome analysis results revealed that different metabolites (DMs) caused by altered CD8A gene expression were associated with "Glutathione metabolism", "Arginine biosynthesis", "D-amino acid metabolism", etc. The combined transcriptional and metabolic analysis revealed one metabolically related pathway, "Glutathione metabolism". Our findings further revealed that interference and overexpression of CD8A plays a role in the metabolism of Glutathione. Thus, CD8A may be a critical regulator of "Glutathione metabolism" and may subsequently affect Tcell function in chickens. These results provide an important reference for further research on the effect of CD8A on the immune performance of chickens.

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