首页|Taurolidine improved protection against highly pathogenetic avian influenza H5N1 virus lethal-infection in mouse model by regulating the NF-κB signaling pathway

Taurolidine improved protection against highly pathogenetic avian influenza H5N1 virus lethal-infection in mouse model by regulating the NF-κB signaling pathway

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Taurolidine(TRD),a derivative of taurine,has anti-bacterial and anti-tumor effects by chemically reacting with cell-walls,endotoxins and exotoxins to inhibit the adhesion of microorganisms.However,its application in antiviral therapy is seldom reported.Here,we reported that TRD significantly inhibited the replication of influenza virus H5N1 in MDCK cells with the half-maximal inhibitory concentration(EC50)of 34.45 μg/mL.Furthermore,the drug inhibited the amplification of the cytokine storm effect and improved the survival rate of mice lethal challenged with H5N1(protection rate was 86%).Moreover,TRD attenuated virus-induced lung damage and reduced virus titers in mice lungs.Administration of TRD reduced the number of neutrophils and increased the number of lymphocytes in the blood of H5N1 virus-infected mice.Importantly,the drug regulated the NF-κB signaling pathway by inhibiting the separation of NF-κB and IκBa,thereby reducing the expression of inflammatory factors.In conclusion,our findings suggested that TRD could act as a potential anti-influenza drug candidate in further clinical studies.

Influenza virusesH5N1Taurolidine(TRD)Cytokine stormsInflammatory responseNF-κB signaling pathway

Chaoxiang Lv、Yuanguo Li、Tiecheng Wang、Qiqi Zhang、Jing Qi、Mingwei Sima、Entao Li、Tian Qin、Zhuangzhuang Shi、Fangxu Li、Xuefeng Wang、Weiyang Sun、Na Feng、Songtao Yang、Xianzhu Xia、Ningyi Jin、Yifa Zhou、Yuwei Gao

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College of Life Sciences,Northeast Normal University,Changchun,Jilin,130021,China

Changchun Veterinary Research Institute,Chinese Academy of Agricultural Sciences.Changchun,130122,China

College of Animal Medicine,Jilin University,Changchun,130000,China

College of Basic Medicine,Changchun University of Chinese Medicine,Changchun,130117,China

College of Animal Science and Technology,Jilin Agricultural University,Changchun,130033,China

College of Life Sciences,Shandong Normal University,Jinan,250014,China

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Chinese National Natural Science Foundation of ChinaNational Key Research and Development Program of ChinaNational Key Research and Development Program of ChinaNational Key Research and Development Program of China

319705022021YFC23017012020ZX10001-016-003ZX10304402-003-006

2023

中国病毒学
中国科学院武汉病毒研究所,中国微生物学会

中国病毒学

CSTPCDCSCD北大核心
影响因子:0.393
ISSN:1674-0769
年,卷(期):2023.(1)
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