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Internal extractive electrospray ionization mass spectrometry for investigating the phospholipid dysregulation induced by perfluorooctanoic acid in Nile tilapia
Analyst ( IF 4.2 ) Pub Date : 2022-07-08 , DOI: 10.1039/d2an00820c
Jun Liu 1 , Haiyan Lu 2 , Yang Ning 1 , Xiuyi Hua 1 , Wenhao Pan 1 , Yu Gu 1 , Deming Dong 1 , Dapeng Liang 1
Affiliation  

Direct profiling of endogenous biomolecules in tissue samples is considered as a promising approach to investigate metabolic-related toxicity in organisms induced by emerging pollutants. Herein, we report the application of internal extractive electrospray ionization mass spectrometry (iEESI-MS) to direct phospholipid profiling in the liver and spleen tissues of Nile tilapia exposed to perfluorooctanoic acid (PFOA). Combining positive and negative ion detection modes, 130 phospholipid signals were directly detected and identified by iEESI-MS in the tissues of Nile tilapia, including phosphatidyl cholines (PCs), sphingomyelins (SMs), phosphatidic acids (PAs), phosphatidyl ethanolamines (PEs), phosphatidyl glycerols (PGs), phosphatidyl inositols (PIs) and phosphatidyl serines (PSs). With the help of partial least squares discriminant analysis (PLS-DA) and one-way analysis of variance (ANOVA), several phospholipid signals showed a significant difference in the tissue of Nile tilapia between the control group and PFOA exposure groups. In addition, pathway analysis revealed that PFOA has a significant metabolic impact on the glycerophospholipid metabolism in Nile tilapia. Without complex sample preparation, iEESI-MS was applied to direct phospholipid profiling in the liver and spleen tissues of Nile tilapia treated with PFOA, which provided a promising methodology for investigating environmental toxicity and phospholipid-dysregulation caused by emerging pollutants in aquatic organisms.

中文翻译:

内萃取电喷雾电离质谱研究全氟辛酸诱导尼罗罗非鱼体内磷脂失调

直接分析组织样本中的内源性生物分子被认为是研究新出现的污染物引起的生物体代谢相关毒性的一种有前途的方法。在此,我们报告了内部提取电喷雾电离质谱 (iEESI-MS) 在直接分析暴露于全氟辛酸 (PFOA) 的尼罗罗非鱼肝脏和脾脏组织中的磷脂谱。结合正负离子检测模式,iEESI-MS直接检测鉴定尼罗罗非鱼组织中的130个磷脂信号,包括磷脂酰胆碱(PCs)、鞘磷脂(SMs)、磷脂酸(PAs)、磷脂酰乙醇胺(PEs) 、磷脂酰甘油(PGs)、磷脂酰肌醇(PIs)和磷脂酰丝氨酸(PSs)。在偏最小二乘判别分析 (PLS-DA) 和单因素方差分析 (ANOVA) 的帮助下,几个磷脂信号显示对照组和 PFOA 暴露组在尼罗罗非鱼组织中存在显着差异。此外,通路分析表明,PFOA 对尼罗罗非鱼的甘油磷脂代谢具有显着的代谢影响。在没有复杂的样品制备的情况下,iEESI-MS 直接应用于经 PFOA 处理的尼罗罗非鱼肝脏和脾脏组织中的磷脂分析,这为研究水生生物中新出现的污染物引起的环境毒性和磷脂失调提供了一种很有前景的方法。几个磷脂信号显示,对照组和全氟辛酸暴露组在尼罗罗非鱼组织中存在显着差异。此外,通路分析表明,PFOA 对尼罗罗非鱼的甘油磷脂代谢具有显着的代谢影响。在没有复杂的样品制备的情况下,iEESI-MS 直接应用于经 PFOA 处理的尼罗罗非鱼肝脏和脾脏组织中的磷脂分析,这为研究水生生物中新出现的污染物引起的环境毒性和磷脂失调提供了一种很有前景的方法。几个磷脂信号显示,对照组和全氟辛酸暴露组在尼罗罗非鱼组织中存在显着差异。此外,通路分析表明,PFOA 对尼罗罗非鱼的甘油磷脂代谢具有显着的代谢影响。在没有复杂的样品制备的情况下,iEESI-MS 直接应用于经 PFOA 处理的尼罗罗非鱼肝脏和脾脏组织中的磷脂分析,这为研究水生生物中新出现的污染物引起的环境毒性和磷脂失调提供了一种很有前景的方法。
更新日期:2022-07-08
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