Abstract
Background
1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) and 1,2-dipalmitoyl-sn-glycerol-3-phosphorylcholine (DPPC) are two common phosphatidylcholines that are the critical components of bilayer membrane structure.
Methods
To detect DMPC and DPPC, an ultra-high-performance liquid chromatography–mass spectrometry (UPLC-MS/MS) method was established. DMPC and DPPC were separated on an amide column with gradient elution and determined by multiple reaction monitoring at m/z 678.6 \(\to\) 184.3 (DMPC) and 734.5 \(\to\) 184.03 (DPPC).
Results
The method was validated and applied to determine the concentration of DMPC and DPPC in paraquat (PQ)-poisoned cells and serum. DMPC and DPPC showed a good linear relationship in both extracellular media. The precision and accuracy of DMPC and DPPC were within 15%. The extracellular concentrations of DMPC and DPPC increased gradually from 12 to 72 h. Spearman analysis of DMPC and DPPC showed that the correlation coefficient was 0.774 in the control group and 0.621 in the PQ group. In conclusion, a rapid and specific UPLC-MS/MS method for detecting DPPC and DMPC was developed and validated. There was a significant correlation between DMPC and DPPC. PQ poisoning decreased the correlation between DPPC and DMPC.
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Data availability
The datasets generated and/or analyzed during the current study are not publicly available but are available from the corresponding author on reasonable request.
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Funding
This work was supported by fund of the Zhejiang Provincial Natural Science Foundation of China (LY19H230001), Wenzhou Science and Technology Bureau (Y20180106), the Health Department of Zhejiang province (2021KY781).
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Hu, L., Xie, G., Lan, Q. et al. Quantitative UPLC-MS/MS to Detect DMPC and DPPC Applied to Paraquat Poisoning in Cells and Serum. Chromatographia 85, 147–153 (2022). https://doi.org/10.1007/s10337-021-04113-z
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DOI: https://doi.org/10.1007/s10337-021-04113-z