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Effect of the diclazuril on Hsp90 in the second-generation merozoites of Eimeria tenella

文献类型： 外文期刊

作者： Shen, Xiaojiong 1 ; Wang, Congcong 1 ; Zhu, Qingxu 2 ; Li, Tao 1 ; Yu, Lijia 1 ; Zheng, Wenli 1 ; Fei, Chenzhong 1 ; Qiu, 1 ;

作者机构： 1.Chinese Acad Agr Sci, Shanghai Vet Res Inst, Key Lab Vet Drug Safety Evaluat & Residues Res, Shanghai 200241, Peoples R China

2.Chinese

关键词： Diclazuril;Heat shock protein 90;Eimeria tenella;Second-generation merozoites

期刊名称：VETERINARY PARASITOLOGY （ 影响因子：2.738； 五年影响因子：2.951 ）

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收录情况： SCI

摘要： Eimeria tenella (E. tenella) is one of the most virulent pathogens of coccidiosis. In apicom-plexan parasites, Hsp90 (Heat shock protein 90) is essential for the invasion and survival in host cells. In this study, the effect of diclazuril, an effective benzeneacetonitrile anticoccidial agent, on the expression of Hsp90 in the second-generation merozoites of E. tenella was investigated. We inoculated 8 x 10(4) oocysts/chicken suspended in 1 ml of distilled water, and chickens were challenged with E. tenella oocysts and provided with normal feed as Control group; chickens challenged with E. tenella oocysts and provided with 1 mg/kg diclazuril in feed from 96 h to 120 hatter inoculation as treatment group. Then the second-generation merozoites were obtained after 120 h from the infected caeca. Our results showed that the transcription level of mzHsp90 was reduced by 29.7% in the diclazuril treatment group, accompanied by reduced level of mzHsp90 protein in second-generation merozoites prepared from infected chickens. We also found that the subcellular localization of mzHsp90 was more dispersed in these merozoites. Moreover, we demonstrated that the effects of diclazuril on mzHsp90 expression were direct by in vitro experiments. Taken together, our data provide insights into the molecular mechanisms of diclazuril in the chemotherapy of E. tenella, and suggest that mzHsp90 represents a promising target for the intervention with E. tenella infection

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