SIRT7 deletion inhibits Glaesserella parasuis-mediated inflammatory responses in porcine alveolar macrophages
文献类型： 外文期刊
作者： Zheng, Hao 1 ; Wang, Baoxin 1 ; Dong, Xia 1 ; Wu, Junjing 3 ; Shi, Liangyu 1 ; Zhang, Jing 1 ; Chen, Hongbo 1 ; Zhou, Ao 1 ;
作者机构： 1.Wuhan Polytech Univ, Sch Anim Sci & Nutr Engn, Lab Genet Breeding Reprod & Precis Livestock Farmi, Wuhan, Peoples R China
2.Wuhan Polytech Univ, Hubei Prov Ctr Technol Innovat Domest Anim Breedin, Wuhan, Peoples R China
3.Hubei Acad Agr Sci, Inst Anim Sci & Vet Med, Wuhan 430064, Peoples R China
关键词：
SIRT7;
期刊名称：FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY （ 影响因子：4.8； 五年影响因子：5.5 ）
ISSN： 2235-2988
年卷期： 2025 年 15 卷
页码：
收录情况： SCI
摘要： Glaesserella parasuis (GPS) infection causes severe inflammatory disorder, resulting in lung injury. SIRT7 is an NAD+-dependent deacetylase known to regulate inflammatory responses, but its role in GPS infection remains unclear. Here we found that GPS infection increased SIRT7 expression and induced inflammatory responses. Deficiency of SIRT7 by CRISPR/Cas9 technology significantly inhibited GPS-induced cytopathic effects and inflammatory responses. In addition, RNA-seq analysis showed that differentially expressed genes(DEGs) induced by SIRT7 deficiency were enriched in biological processes such as cell proliferation, actin cytoskeleton formation, lipid synthesis, protein kinase activation regulation, and GTPase activity regulation. Functional enrichment analysis further indicated the involvement of these DEGs in tight junction pathway, PI3K-Akt signaling pathway, actin cytoskeleton regulation, cGMP-PKG signaling pathway, Hippo signaling pathway, and TNF signaling pathway. Finally, we identified some hub genes (GNAI3, GNAI1, JAK1, NDUFS8, CYC1) related to oxidative phosphorylation. In summary, our results demonstrate that SIRT7 is pivotal for GPS-induced inflammatory responses, which represents a promising target resistant to GPS infection.
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