Serum metabolomic alterations in Beagle dogs experimentally infected with Toxocara canis

文献类型： 外文期刊

第一作者： Zheng, Wen-Bin

作者： Zheng, Wen-Bin;Liu, Guo-Hua;Wang, Shui-Lian;Zhu, Xing-Quan;Zheng, Wen-Bin;Zou, Yang;Zhu, Xing-Quan;Elsheikha, Hany M.;Hu, Min-Hua

作者机构：

关键词： Toxocara canis; Toxocariasis; Beagle dog; Serum; Metabolomic; LC-MS; MS

期刊名称：PARASITES & VECTORS （ 影响因子：3.876； 五年影响因子：3.959 ）

ISSN： 1756-3305

年卷期： 2019 年 12 卷 1 期

页码：

收录情况： SCI

摘要： Background Toxocara canis, a globally distributed roundworm, can cause debilitating disease in dogs and humans; however, little is known about the metabolomic response of the hosts to T. canis infection. There is an increasing need to understand the metabolic mechanisms underlying the pathogenesis of T. canis infection in dogs. Here, we examined the metabolomic changes in Beagle dogs & apos; serum following T. canis infection using LC-MS/MS. Results The metabolic profiles of Beagle dogs & apos; serum were determined at 12 h, 24 h, 10 d and 36 d after oral infection with 300 infectious T. canis eggs by LC-MS/MS. We tested whether the T. canis-associated differentially abundant metabolites could distinguish the serum of infected dogs from controls, as measured by the area under the receiver operating characteristic (ROC) curve (AUC). The differentially expressed metabolites were further evaluated by principal components analysis and pathway enrichment analysis. A total of 5756 and 5299 ions were detected in ESI+ and ESI- mode, respectively. ROC curve analysis revealed nine and five metabolite markers, at 12 hpi and 24 hpi to 36 dpi, respectively, with potential diagnostic value for toxocariasis. The levels of taurocholate, estradiol, prostaglandins and leukotriene were significantly changed. Primary bile acid biosynthesis pathway, steroid hormone biosynthesis pathway and biosynthesis of unsaturated fatty acids pathway were significantly altered by T. canis infection. Conclusions These findings show that T. canis infection can induce several changes in the dog serum metabolome and that the metabolic signature associated with T. canis infection in dogs has potential for toxocariasis diagnosis.

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