Effect of multiplicity of infection on the evasion of neutrophil killing by Streptococcus agalactiae isolated from clinical mastitis bovine
文献类型： 外文期刊
作者： Ma, Fang 1 ; Yang, Shifang 4 ; Wang, Guangyu 5 ; Zhou, Mingxu 1 ; Zhang, Jinqiu 1 ; Deng, Bihua 1 ; Yin, Wenzhu 1 ; Wang, Haiyan 1 ; Lu, Yu 1 ; Fan, Hongjie 4 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Vet Immunol & Engn, Natl Res Ctr Engn & Technol Vet Biol,Minist Sci &, Jiangsu Key Lab Food Qual & Safety,State Key Lab, Nanjing 210014, Peoples R China
2.Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Jiangsu, Peoples R China
3.Jiangsu Coinnovat Ctr Prevent & Control Important, Yangzhou 225009, Jiangsu, Peoples R China
4.Nanjing Agr Univ, Coll Vet Med, Nanjing, Peoples R China
5.Nanjing Univ Finance & Econ, Coll Food Sci & Engn, Nanjing 210023, Jiangsu, Peoples R China
关键词： Streptococcus agalactiae; Bovine mastitis; Multiplicity of infection; Neutrophil response
期刊名称：VETERINARY MICROBIOLOGY （ 影响因子：3.246； 五年影响因子：3.565 ）
ISSN： 0378-1135
年卷期： 2022 年 270 卷
页码：
收录情况： SCI
摘要： Streptococcus agalactiae (S. agalactiae) causes intramammary infection in dairy cows. Increased neutrophils and a high bacterial load are important characteristics of bovine bacterial mastitis. We hypothesized that the multiplicity of infection (MOI) of S. agalactiae in bovine mastitis plays an important role in bacterial pathogenicity by modulating the neutrophil response to promote bacterial survival. Neutrophils from BALB/c mice were infected with the bovine mastitis isolate of S. agalactiae SAG-FX17 at various MOIs, and neutrophil responses were investigated. Infecting neutrophils with SAG-FX17 at an MOI of 1 induced reactive oxygen species (ROS) and neutrophil extracellular traps (NETs) formation. Bacteria at an MOI of 10 suppressed neutrophil responses, including ROS bursts, NET formation, and cell necrosis, which are conducive to bacterial multiplication within 30 min postinfection. In addition, neutrophils are destroyed by SAG-FX17 at an MOI of 100 or greater. This study identified the MOIs related to the ROS and NET suppression caused by SAG-FX17, and the findings suggested that interventions to decrease bacterial loads before the MOI of 10 could be necessary and effective to harness the power of innate immune response to eliminate pathogens.
- 相关文献
作者其他论文 更多>>
-
Functional Genomics: From Soybean to Legume
作者：Zhou, Can;Wang, Haiyan;Qi, Zhaoming;Zhou, Can;Wang, Haiyan;Zhu, Xiaobin;Xia, Zhengjun;Li, Yuqiu;Zhang, Bo;Tadege, Million;Wu, Shihao
关键词：legume; T2T; genome; pangenome; functional genomics; soybean
-
Lipopeptide biosurfactants of Pseudomonas fragi showed intraspecific specificity to their biological traits
作者：Wang, Guangyu;Wang, Yongkang;Chen, Yuping;Ma, Fang
关键词：Pseudomonas; Biosurfactant; Biological traits; Intraspecific specificity
-
Enhanced Immunogenicity of Chicken H9N2 Influenza Inactivated Vaccine Through a Novel Dual-Targeting Fusion Protein Strategy
作者：Xu, Hai;Feng, Yaming;Xu, Hai;Deng, Bihua;Zhu, Yalu;Qi, Qiurong;Feng, Yaming;Deng, Bihua;Lu, Yu;Wu, Erzhong
关键词：dual targeting; avian influenza; dendritic cell; envelope virus
-
Nano-adjuvant based on lipo-imiquimod self-assembly for enhanced foot-and-mouth disease virus vaccine immune responses via intradermal immunization
作者：Yin, Wenzhu;Ma, Fang;Deng, Bihua;Zhao, Yanhong;Zuo, Xiaoxin;Wang, Haiyan;Lu, Yu;Xu, Zeyu;Zhao, Yanhong;Lu, Yu;Yin, Wenzhu;Deng, Bihua
关键词：Imiquimod; Lipidation; Self-assembly; Nano-adjuvant; Intradermal immunity; Foot-and-mouth vaccine
-
Immunogenicity of a novel HMT13 adjuvant-based inactivated vaccine against Avian pathogenic Escherichia coli serogroups O36, O78, and O109
作者：Jia, Chaoying;Wang, Zesong;Liu, Qingyun;Wang, Xiangru;Jia, Chaoying;Wang, Zesong;Liu, Qingyun;Wang, Xiangru;Fu, Jiyang;Li, Zugang;Yu, Jiangxu;Liu, Qingyun;Wang, Xiangru;Zhang, Jinqiu
关键词：Avian colibacillosis; APEC; Inactivated vaccine; HMT 13; Adjuvant
-
The aprD-mutated strain modulates the development of Pseudomonas fragi population but has limited effects on the spoilage profiles of native residents
作者：Wu, Yajie;Tan, Song;Niu, Ajuan;Chen, Yuping;Liu, Yuxin;Qiu, Weifen;Wang, Guangyu;Ma, Fang
关键词：Pseudomonas fragi; Chilled chicken; Spoilage; Microbial community
-
YiMu-QingGong san alleviates lipopolysaccharide-induced endometritis in mice via inhibiting inflammation and oxidative stress through regulating macrophage polarization
作者：Yu, Yaming;Mao, Ningning;Yu, Lin;Lin, Fangzhu;Shi, Xiaofeng;Lu, Xuanqi;Yang, Yang;Wang, Deyun;Yu, Yaming;Mao, Ningning;Yu, Lin;Lin, Fangzhu;Shi, Xiaofeng;Lu, Xuanqi;Yang, Yang;Wang, Deyun;Lu, Yu
关键词：Macrophage polarization; Inflammation; Endometritis; NF-kappa B; Fibrosis; Uterine barrier
