文献类型: 外文期刊
作者: Ma, J; He, JJ; Hou, JL; Zhou, CX; Zhang, FK; Elsheikha, HM; Zhu, XQ
作者机构:
关键词: Metabolomics; Neuropathy; Cerebral cortex; Toxoplasma gondii; Host-parasite interaction; Metabolism
期刊名称: PARASITES & VECTORS
ISSN: 1756-3305
年卷期: 2019 年 12 卷
页码:
收录情况: JCR(2021版)
摘要: BackgroundThe protozoan parasite Toxoplasma gondii infects and alters the neurotransmission in cerebral cortex and other brain regions, leading to neurobehavioral and neuropathologic changes in humans and animals. However, the molecules that contribute to these changes remain largely unknown.MethodsWe have investigated the impact of T. gondii infection on the overall metabolism of mouse cerebral cortex. Mass-spectrometry-based metabolomics and multivariate statistical analysis were employed to discover metabolomic signatures that discriminate between cerebral cortex of T. gondii-infected and uninfected control mice.ResultsOur results identified 73, 67 and 276 differentially abundant metabolites, which were involved in 25, 37 and 64 pathways at 7, 14 and 21days post-infection (dpi), respectively. Metabolites in the unsaturated fatty acid biosynthesis pathway were upregulated as the infection progressed, indicating that T. gondii induces the biosynthesis of unsaturated fatty acids to promote its own growth and survival. Some of the downregulated metabolites were related to pathways, such as steroid hormone biosynthesis and arachidonic acid metabolism. Nine metabolites were identified as T. gondii responsive metabolites, namely galactosylsphingosine, arachidonic acid, LysoSM(d18:1), l-palmitoylcarnitine, calcitetrol, 27-Deoxy-5b-cyprinol, l-homophenylalanine, oleic acid and ceramide (d18:1/16:0).ConclusionsOur data provide novel insight into the dysregulation of the metabolism of the mouse cerebral cortex during T. gondii infection and have important implications for studies of T. gondii pathogenesis.
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