Effects of Neutrophil Extracellular Traps on Bovine Mammary Epithelial Cells in vitro

Bovine mastitis is a common infectious disease which causes huge economic losses in dairy cattle. Bovine mammary epithelial cell (BMEC) damage usually directly causes the decrease of milk production, which is one of the most important causes of economic loss. NETs, novel effector mechanisms, are rep...

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Main Authors: Zhengkai Wei, Jingjing Wang, Yanan Wang, Chaoqun Wang, Xiao Liu, Zhen Han, Yunhe Fu, Zhengtao Yang
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-05-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fimmu.2019.01003/full
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author Zhengkai Wei
Zhengkai Wei
Jingjing Wang
Yanan Wang
Chaoqun Wang
Xiao Liu
Zhen Han
Yunhe Fu
Zhengtao Yang
Zhengtao Yang
author_facet Zhengkai Wei
Zhengkai Wei
Jingjing Wang
Yanan Wang
Chaoqun Wang
Xiao Liu
Zhen Han
Yunhe Fu
Zhengtao Yang
Zhengtao Yang
author_sort Zhengkai Wei
collection DOAJ
description Bovine mastitis is a common infectious disease which causes huge economic losses in dairy cattle. Bovine mammary epithelial cell (BMEC) damage usually directly causes the decrease of milk production, which is one of the most important causes of economic loss. NETs, novel effector mechanisms, are reported to exacerbate the pathogenesis of several inflammatory diseases. NETs formation has also been observed in the milk and mammary glands of sheep. However, the effects and detailed mechanisms of NETs on BMEC damage remain unclear. Thus, we aim to examine the effects of NETs on BMECs in vitro, and further to investigate the detail mechanism. In this study, the cytotoxicity of NETs on BMECs was determined using lactic dehydrogenase (LDH) levels in culture supernatants. Histone-induced BMEC damage was examined by flow cytometry and immunofluorescence analysis. The activities of caspase 1, caspase 3, caspase 11, and NLRP3 was detected using western blotting and immunohistochemical analysis. The results showed that NETs and their component histone significantly increased cytotoxicity to BMECs, suggesting the critical role of NETs, and their component histone in BMEC damage. In addition, histone could also induce necrosis, pyroptosis, and apoptosis of BMECs, and the mechanisms by which histone leads to BMEC damage occurred via activating caspase 1, caspase 3, and NLRP3. Altogether, NETs formation regulates inflammation and BMEC damage in mastitis. Inhibiting excess NETs formation may be useful to ameliorate mammary gland damage associated with mastitis.
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spelling doaj.art-cfcd2419415a49b5b232efb56a0722bf2022-12-22T03:11:44ZengFrontiers Media S.A.Frontiers in Immunology1664-32242019-05-011010.3389/fimmu.2019.01003427204Effects of Neutrophil Extracellular Traps on Bovine Mammary Epithelial Cells in vitroZhengkai Wei0Zhengkai Wei1Jingjing Wang2Yanan Wang3Chaoqun Wang4Xiao Liu5Zhen Han6Yunhe Fu7Zhengtao Yang8Zhengtao Yang9College of Life Sciences and Engineering, Foshan University, Foshan, ChinaCollege of Veterinary Medicine, Jilin University, Changchun, ChinaCollege of Veterinary Medicine, Jilin University, Changchun, ChinaCollege of Veterinary Medicine, Jilin University, Changchun, ChinaCollege of Veterinary Medicine, Jilin University, Changchun, ChinaCollege of Veterinary Medicine, Jilin University, Changchun, ChinaCollege of Veterinary Medicine, Jilin University, Changchun, ChinaCollege of Veterinary Medicine, Jilin University, Changchun, ChinaCollege of Life Sciences and Engineering, Foshan University, Foshan, ChinaCollege of Veterinary Medicine, Jilin University, Changchun, ChinaBovine mastitis is a common infectious disease which causes huge economic losses in dairy cattle. Bovine mammary epithelial cell (BMEC) damage usually directly causes the decrease of milk production, which is one of the most important causes of economic loss. NETs, novel effector mechanisms, are reported to exacerbate the pathogenesis of several inflammatory diseases. NETs formation has also been observed in the milk and mammary glands of sheep. However, the effects and detailed mechanisms of NETs on BMEC damage remain unclear. Thus, we aim to examine the effects of NETs on BMECs in vitro, and further to investigate the detail mechanism. In this study, the cytotoxicity of NETs on BMECs was determined using lactic dehydrogenase (LDH) levels in culture supernatants. Histone-induced BMEC damage was examined by flow cytometry and immunofluorescence analysis. The activities of caspase 1, caspase 3, caspase 11, and NLRP3 was detected using western blotting and immunohistochemical analysis. The results showed that NETs and their component histone significantly increased cytotoxicity to BMECs, suggesting the critical role of NETs, and their component histone in BMEC damage. In addition, histone could also induce necrosis, pyroptosis, and apoptosis of BMECs, and the mechanisms by which histone leads to BMEC damage occurred via activating caspase 1, caspase 3, and NLRP3. Altogether, NETs formation regulates inflammation and BMEC damage in mastitis. Inhibiting excess NETs formation may be useful to ameliorate mammary gland damage associated with mastitis.https://www.frontiersin.org/article/10.3389/fimmu.2019.01003/fullNETsbovine mastitisBMECspyroptosisNLRP3
spellingShingle Zhengkai Wei
Zhengkai Wei
Jingjing Wang
Yanan Wang
Chaoqun Wang
Xiao Liu
Zhen Han
Yunhe Fu
Zhengtao Yang
Zhengtao Yang
Effects of Neutrophil Extracellular Traps on Bovine Mammary Epithelial Cells in vitro
Frontiers in Immunology
NETs
bovine mastitis
BMECs
pyroptosis
NLRP3
title Effects of Neutrophil Extracellular Traps on Bovine Mammary Epithelial Cells in vitro
title_full Effects of Neutrophil Extracellular Traps on Bovine Mammary Epithelial Cells in vitro
title_fullStr Effects of Neutrophil Extracellular Traps on Bovine Mammary Epithelial Cells in vitro
title_full_unstemmed Effects of Neutrophil Extracellular Traps on Bovine Mammary Epithelial Cells in vitro
title_short Effects of Neutrophil Extracellular Traps on Bovine Mammary Epithelial Cells in vitro
title_sort effects of neutrophil extracellular traps on bovine mammary epithelial cells in vitro
topic NETs
bovine mastitis
BMECs
pyroptosis
NLRP3
url https://www.frontiersin.org/article/10.3389/fimmu.2019.01003/full
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