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Taurine inhibits Streptococcus uberis-induced NADPH oxidase-dependent neutrophil extracellular traps via TAK1/MAPK signaling pathways

文献类型： 外文期刊

作者： Li, Ming 1 ; Gao, Yabing 1 ; Wang, Zhenglei 1 ; Wu, Binfeng 1 ; Zhang, Jinqiu 2 ; Xu, Yuanyuan 1 ; Han, Xiangan 3 ; Phouthapane, Vanhnaseng 4 ; Miao, Jinfeng 1 ;

作者机构： 1.Nanjing Agr Univ, Coll Vet Med, Joint Int Res Lab Anim Hlth & Food Safety, Key Lab Anim Physiol & Biochem, Nanjing, Peoples R China

2.Jiangsu Acad Agr Sci, Natl Res Ctr Vet Vaccine Engn & Technol China, Nanjing, Peoples R China

3.Chinese Acad Agr Sci, Shanghai Vet Res Inst, Shanghai, Peoples R China

4.Minist Agr & Forestry, Dept Livestock & Fisheries, Viangchan, Laos

关键词： taurine; Streptococcus uberis; neutrophil extracellular traps; NADPH oxidase; TAK1; MAPK

期刊名称：FRONTIERS IN IMMUNOLOGY （ 影响因子：8.786； 五年影响因子：8.876 ）

ISSN： 1664-3224

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： Neutrophil extracellular traps (NETs) are produced by neutrophil activation and usually have both anti-infective and pro-damage effects. Streptococcus uberis (S. uberis), one of the common causative organisms of mastitis, can lead to the production of NETs. Taurine, a free amino acid abundant in the organism, has been shown to have immunomodulatory effects. In this study, we investigated the molecular mechanisms of S. uberis-induced NETs formation and the regulatory role of taurine. The results showed that NETs had a disruptive effect on mammary epithelial cells and barriers, but do not significantly inhibit the proliferation of S. uberis. S. uberis induced NADPH oxidase-dependent NETs. TLR2-mediated activation of the MAPK signaling pathway was involved in this process. Taurine could inhibit the activation of MAPK signaling pathway and NADPH oxidase by modulating the activity of TAK1, thereby inhibiting the production of ROS and NETs. The effects of taurine on NADPH oxidase and NETs in S. uberis infection were also demonstrated in vivo. These results suggest that taurine can protect mammary epithelial cells and barriers from damage by reducing S. uberis-induced NETs. These data provide new insights and strategies for the prevention and control of mastitis.

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