Molecular Response and Metabolic Reprogramming of the Spleen Coping with Cold Stress in the Chinese Soft-Shelled Turtle (Pelodiscus sinensis)
文献类型： 外文期刊
作者： Ji, Liqin 1 ; Shi, Qing 1 ; Shangguan, Yisen 1 ; Chen, Chen 1 ; Zhu, Junxian 1 ; Dong, Zhen 2 ; Hong, Xiaoyou 1 ; Liu, Xiaoli 1 ; Wei, Chengqing 1 ; Zhu, Xinping 1 ; Li, Wei 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Key Lab Trop & Subtrop Fishery Resources Applicat, Minist Agr & Rural Affairs, Guangzhou 510275, Peoples R China
2.Minist Nat Resources, South China Sea Marine Survey Ctr, Key Lab Marine Environm Survey Technol & Applicat, Guangzhou 510275, Peoples R China
关键词： Chinese soft-shelled turtle; cold stress; antioxidant enzymes; transcriptome; metabolism; signaling pathways
期刊名称：ANTIOXIDANTS （ 影响因子：6.6； 五年影响因子：7.3 ）
ISSN：
年卷期： 2025 年 14 卷 2 期
页码：
收录情况： SCI
摘要： The Chinese soft-shelled turtle (Pelodiscus sinensis), as a type of warm-water reptile, could be induced to massive death by sharp temperature decline. Hence, the mechanism of spleen tissue responding to cold stress in the P. sinensis was investigated. The present results showed that the superoxide dismutase (SOD) activity declined from 4 to 16 days post-cold-stress (dps), while the catalase (CAT) and glutathione peroxidase (GSH-Px) activities increased, from 4 to 8 dps in the 14 degrees C (T14) and 7 degrees C (T7) stress groups. The spleen transcriptome in the T7 group and the control group (CG) at 4 dps obtained 2625 differentially expressed genes (DEGs), including 1462 upregulated and 1663 downregulated genes. The DEGs were enriched mainly in the pathways "intestinal immune network for IgA production" (Pigr, Il15ra, Tnfrsf17, Aicda, and Cd28), "toll-like receptor signaling pathway" (Mapk10, Tlr2, Tlr5, Tlr7, and Tlr8), and "cytokine-cytokine receptor interaction" (Cx3cl1, Cx3cr1, Cxcl14, Cxcr3, and Cxcr4). The metabolomic data showed that esculentic acid, tyrosol, diosgenin, heptadecanoic acid, and 7-ketodeoxycholic acid were obviously increased, while baccatin III, taurohyocholate, parthenolide, enterolactone, and tricin were decreased, in the CG vs. T7 comparison. Integrated analysis of the two omics revealed that "glycine, serine and threonine metabolism", "FoxO signaling pathway", and "neuroactive ligand-receptor interaction" were the main pathways responding to the cold stress. Overall, this work found that low temperature remarkably influenced the antioxidant enzyme activities, gene expression pattern, and metabolite profile in the spleen, indicating that immunity might be weakened by cold stress in P. sinensis.
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