TRIM32 positively regulates c-di-GMP-Induced type I interferon signaling pathway in Listeria monocytogenes infection.

IF 2.6 4区 医学 Q3 IMMUNOLOGY
Yaya Pian, Xuan OuYang
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引用次数: 0

Abstract

Listeria monocytogenes (Lm) poses a significant threat to human health. TRIM32, an E3 ubiquitin ligase, plays a critical role in regulating immune responses to pathogen infections. Previous studies have shown that TRIM32 deficiency significantly impairs IFN-β production. In this study, we demonstrate that TRIM32 enhances IFN-β release upon activation by cyclic di-GMP (c-di-GMP). Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses revealed that TRIM32 deficiency upregulates genes associated with metabolic pathways while downregulating those involved in cytokine signaling and inflammatory responses. Western blot analysis further indicated a significant reduction in ERK and JNK phosphorylation in splenocytes and peritoneal macrophages, suggesting that TRIM32 modulates the MAPK signaling pathway. Additionally, the duration of p38, STAT, and TBK1 phosphorylation was shortened in bone marrow-derived macrophages. Collectively, these findings highlight the role of TRIM32 in enhancing the host immune response against Lm infection.

TRIM32正调控c-di- gmp诱导的I型干扰素信号通路在单核增生李斯特菌感染中的作用
单核增生李斯特菌(Listeria monocytogenes, Lm)对人类健康构成重大威胁。TRIM32是一种E3泛素连接酶,在调节机体对病原体感染的免疫应答中起关键作用。先前的研究表明,TRIM32缺乏显著损害IFN-β的产生。在这项研究中,我们证明TRIM32在环二gmp (c-二gmp)激活后促进IFN-β的释放。基因本体(GO)和京都基因与基因组百科全书(KEGG)分析显示,TRIM32缺陷上调了与代谢途径相关的基因,下调了与细胞因子信号传导和炎症反应相关的基因。Western blot分析进一步发现,脾细胞和腹膜巨噬细胞中ERK和JNK磷酸化显著降低,表明TRIM32调节了MAPK信号通路。此外,骨髓源性巨噬细胞中p38、STAT和TBK1磷酸化的持续时间缩短。总之,这些发现强调了TRIM32在增强宿主对Lm感染的免疫应答中的作用。
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来源期刊
Microbes and Infection
Microbes and Infection 医学-病毒学
CiteScore
12.60
自引率
1.70%
发文量
90
审稿时长
40 days
期刊介绍: Microbes and Infection publishes 10 peer-reviewed issues per year in all fields of infection and immunity, covering the different levels of host-microbe interactions, and in particular: the molecular biology and cell biology of the crosstalk between hosts (human and model organisms) and microbes (viruses, bacteria, parasites and fungi), including molecular virulence and evasion mechanisms. the immune response to infection, including pathogenesis and host susceptibility. emerging human infectious diseases. systems immunology. molecular epidemiology/genetics of host pathogen interactions. microbiota and host "interactions". vaccine development, including novel strategies and adjuvants. Clinical studies, accounts of clinical trials and biomarker studies in infectious diseases are within the scope of the journal. Microbes and Infection publishes articles on human pathogens or pathogens of model systems. However, articles on other microbes can be published if they contribute to our understanding of basic mechanisms of host-pathogen interactions. Purely descriptive and preliminary studies are discouraged.
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