基于高分辨率质谱的金欣口服液治疗小鼠RSV感染的血清脂质组学研究
Lipomics Study of Jinxin Oral Liquid for RSV Infection in Mice Based on UHPLC-Q-Exactive Orbitrap/MS
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摘要: 目的 基于UHPLC-Q-Exactive Orbitrap MS高分辨率质谱,观察RSV诱发的肺炎模型小鼠的血清中脂质代谢的变化,分析金欣口服液对RSV肺炎小鼠中脂质代谢紊乱的调节作用,探讨金欣口服液治疗RSV诱发的病毒性肺炎的潜在机制。方法 用RSV诱导小鼠病毒性肺炎,灌胃金欣口服液予以治疗,分别采集对照组、模型组、金欣口服液组小鼠的血清样本,提取脂质成分,采用LC-MS分析,采用主成分分析法(PCA)、聚类分析法(CA)等多元统计方法,对小鼠血清脂质代谢轮廓进行分析,同时进行Kruskal–Wallis test以及fold change法进行统计,寻找差异性脂质。结果 RSV感染导致小鼠肺部炎性细胞浸润及不同程度的肺炎,血清中多种脂质代谢物代谢紊乱,具体表现多数PC、PE出现明显上调,金欣口服液均能改善小鼠肺炎症状且显著恢复血清中异常紊乱的脂质。结论 RSV感染可导致小鼠血清中脂质代谢紊乱,而金欣口服液可一定程度恢复RSV模型中代谢紊乱的脂质,提示金欣口服液可通过调节脂质改善RSV诱发的肺炎。Abstract: OBJECTIVE Alipidomic method was applied to determine the lipidome in serum of mice based on high-resolution mass spectrometry (Q-Exactive Orbitrap). We investigated the changes of lipids in serum of mice with RSV to explore the regulation of Jinxin oral liquid on lipid metabolism caused by RSV. METHODS The serum samples from the blank group, the RSV model group and Jinxin oral liquid group mice were collected, and the lipids of these samples were extracted and further analyzed by high-resolution mass spectrometry. Multivariate statistical methods such as principal component analysis (PCA) and cluster analysis (CA) were used to analyze the lipid profiles, and the Kruskal-Wallis test and fold change were performed to find the differential lipids. RESULTS The lipids of serum between the blank control group and the RSV model group could be well distinguished, RSV infection in mice with metabolic abnormalities of lipids, the specific performance of the PC, PE was significantly upregulated, Jinxin oral liquid have a certain role in these lipids CONCLUSION RSV infection caused disturbances of lipid in vivo, and Jinxin oral liquid has a certain regulatory effect on the lipid metabolism disorder caused by RSV model.