Serum levels of cytokines in water buffaloes experimentally infected with Fasciola gigantica
文献类型: 外文期刊
第一作者: Zhang, Fu-Kai
作者: Zhang, Fu-Kai;Guo, Ai-Jiang;Hou, Jun-Ling;Sun, Miao-Miao;Zhang, Xiao-Xuan;Zhu, Xing-Quan;Sheng, Zhao-An;Huang, Wei-Yi;Elsheikha, Hany M.;Zhu, Xing-Quan
作者机构:
关键词: Buffaloes;Cytokines;Fasciolosis;Th1/Th2 paradigm
期刊名称:VETERINARY PARASITOLOGY ( 影响因子:2.738; 五年影响因子:2.951 )
ISSN: 0304-4017
年卷期: 2017 年 244 卷
页码:
收录情况: SCI
摘要: Fasciola gigantica infection in water buffaloes causes significant economic losses especially in developing countries. Although modulation of the host immune response by cytokine neutralization or vaccination is a promising approach to control infection with this parasite, our understanding of cytokine's dynamic during F. gigantica infection is limited. To address this, we quantified the levels of serum cytokines produced in water buffaloes following experimental infection with F. gigantica. Five buffaloes were infected via oral gavage with 500 viable F. gigantica metacercariae and blood samples were collected from buffaloes one week before infection and for 13 consecutive weeks thereafter. The levels of 10 cytokines in serum samples were simultaneously determined using ELISA. F. gigantica failed to elicit the production of various pro-inflammatory cytokines, including interleukin-1 beta (IL-1 beta), IL-2, IL-6, IL-12, and IFN-gamma. On the other hand, evidence of a Th2 type response was detected, but only early in the course of parasite colonization and included modest increase in the levels of IL-10 and IL-13. The results also revealed suppression of the immune responses as a feature of chronic F. gigantica infection in buffaloes. Taken together, F. gigantica seems to elicit a modest Th2 response at early stage of infection in order to downregulate harmful Th1- and Th17-type inflammatory responses in experimentally infected buffaloes. The full extent of anti-F. gigantica immune response and its relation to pathogenesis requires further study.
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