Tectorigenin Reduces Dabie bandavirus-Induced Cytokine Storm by Regulating Toll-Like Receptor 7/Extracellular Signal–Regulated Kinase Pathway

IF 3.2 4区 医学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY
Qian Zhang, Qinqin Pu, Zhengyi Jiang, Jie Zhao, Yan Dai, Nannan Hu, Yaping Han, Nan Jiang, Luchen Shi, Jiaying Zhao, Ke Ouyang, Huaying Huang, Ke Jin, Jun Li
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Abstract

Severe fever with thrombocytopenia syndrome (SFTS) is a severe emerging infectious disease caused by Dabie bandavirus (DBV). Tectorigenin has been demonstrated to exert anti-inflammatory effect. Here, we aimed to investigate the effects of tectorigenin on DBV-induced cytokine storm. Effects of tectorigenin on cytokines in DBV-infected THP-1 cells and plasma samples of Type I interferon receptor (IFNAR)−/− mice infected with DBV were detected. The changes in body weight and survival time of mice were recorded. The liver, spleen, kidney, and lymph node tissues were collected for hematoxylin–eosin staining. We demonstrated that tectorigenin reduced the expression levels of inflammatory cytokines in both DBV-infected THP-1 cells and plasma samples of IFNAR−/− mice infected with DBV. Tectorigenin attenuated DBV-induced histopathological changes in mice. Mechanistically, tectorigenin attenuated DBV-induced phosphorylation of inhibitor of kappa-B kinase alpha/beta (IKKα/β) of the nuclear factor-κB (NF-κB) signaling pathway, extracellular signal–regulated kinase (ERK) of the mitogen-activated protein kinase (MAPK) signaling pathway and might function by downregulation of Toll-like receptor. The result of this study suggested that tectorigenin exerted anti-inflammatory effects in vivo and in vitro and could serve as a novel potential therapeutic strategy for SFTS.

Abstract Image

橘皮苷元通过调节Toll-Like受体7/细胞外信号调节激酶途径减少达比带状疱疹病毒诱导的细胞因子风暴
严重发热伴血小板减少综合征(SFTS)是由达比带状疱疹病毒(DBV)引起的一种新发严重传染病。矢车菊素具有抗炎作用。在此,我们旨在研究蓟黄素对 DBV 诱导的细胞因子风暴的影响。我们检测了蓟黄素对感染 DBV 的 THP-1 细胞和感染 DBV 的 I 型干扰素受体(IFNAR)-/ 小鼠血浆样本中细胞因子的影响。记录了小鼠体重和存活时间的变化。采集肝脏、脾脏、肾脏和淋巴结组织进行苏木精-伊红染色。我们证实,蓟马苷能降低感染 DBV 的 THP-1 细胞和 IFNAR-/- 感染 DBV 的小鼠血浆样本中炎性细胞因子的表达水平。矢车菊素减轻了 DBV 诱导的小鼠组织病理学变化。从机理上讲,矢车菊素减轻了DBV诱导的核因子κB(NF-κB)信号通路的κB激酶α/β抑制因子(IKKα/β)磷酸化、有丝分裂原激活蛋白激酶(MAPK)信号通路的细胞外信号调节激酶(ERK),并可能通过下调Toll样受体发挥作用。该研究结果表明,桔梗皂苷能在体内和体外发挥抗炎作用,可作为一种潜在的治疗 SFTS 的新策略。
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来源期刊
Chemical Biology & Drug Design
Chemical Biology & Drug Design 医学-生化与分子生物学
CiteScore
5.10
自引率
3.30%
发文量
164
审稿时长
4.4 months
期刊介绍: Chemical Biology & Drug Design is a peer-reviewed scientific journal that is dedicated to the advancement of innovative science, technology and medicine with a focus on the multidisciplinary fields of chemical biology and drug design. It is the aim of Chemical Biology & Drug Design to capture significant research and drug discovery that highlights new concepts, insight and new findings within the scope of chemical biology and drug design.
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