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Analytical and Bioanalytical Chemistry

, Volume 407, Issue 21, pp 6543–6555 | Cite as

Development of a mass-spectrometry-based lipidomics platform for the profiling of phospholipids and sphingolipids in brain tissues

  • Tingting Zhang
  • Si Chen
  • Xinle Liang
  • Hong ZhangEmail author
Research Paper

Abstract

This article describes the development of a lipidomic platform consisting of a 4000 QTRAP mass spectrometer and a self-installed sample inlet system to indentify and quantify 12 phospholipid and five sphingolipid classes from lipid-rich brain tissues of mouse, duck, and salmon. The total mass spectrometry analysis time per sample was 30 min, including 14 min for direct infusion for phospholipids and sulfatide in precursor ion scanning mode or neutral loss scanning mode, and 16 min for liquid-chromatographic separation of ceramide, sphingomyelin, monohexosylceramide, and dihexosylceramide in multiple reaction monitoring mode. The method was fully validated in terms of linearity, detectability, recovery, and repeatability, with satisfactory results for all targets. We individually quantified 307, 308, and 330 lipid species from 17 lipid subclasses, and obtained total amounts of 57.2, 61.7, and 53.1 mg/g wet brain for mouse, duck, and salmon tissues, respectively. Phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, and sphingomyelin were the major lipids in all the brain samples, whereas phosphatidylinositol occurred at a relatively higher level in the salmon sample. For phospholipids, sphingolipids, and minor lysophospholipids, differences in the identity of the molecular species, their distributions, and their relative amounts as well as the contribution of each lipid subclass to the whole polar lipidome were found. Palmitic acid (16:0), stearic acid (18:0), lignoceric acid (24:0), oleic acid (18:1), nervonic acid (24:1), arachidonic acid (20:4), and docosahexaenoic acid (22:6) were found as the main saturated, monounsaturated, and polyunsaturated fatty acids in samples from the different species, but eicosapentaenoic acid (20:5) and docosahexaenoic acid (22:6) were more abundant in the salmon brain sample. The results are in good agreement with those in previous reports obtained from the relevant tissues, providing a reliable basis that could be extended to clinical research and resource evaluation.

Graphical Abstract

Methodology for phospholipids and sphingolipids profiling in brain tissues

Keywords

Electrospray ionization mass spectrometry Phospholipids Sphingolipids Brain Lipidomics 

Abbreviations

ACN

Acetonitrile

Cer

Ceramide

DHA

Docosahexaenoic acid

diHexCer

Dihexosylceramide

ESI

Electrospray ionization

HexCer

Monohexosylceramide

HPLC

High-performance liquid chromatography

LC

Liquid chromatography

LPA

Lysophosphatidic acid

LPC

Lysophosphatidylcholine

LPE

Lysophosphatidylethanolamine

LPG

Lysophosphatidylglycerol

LPI

Lysophosphatidylinositol

LPL

Lysophospholipid

LPS

Lysophosphatidylserine

MeOH

Methanol

MRM

Multiple reaction monitoring

NLS

Neutral loss scanning

PA

Phosphatidic acid

PC

Phosphatidylcholine

PE

Phosphatidylethanolamine

PG

Phosphatidylglycerol

PI

Phosphatidylinositol

PIS

Precursor ion scanning

PL

Phospholipid

PS

Phosphatidylserine

Q1

Quadrupole 1

Q3

Quadrupole 3

SL

Sphingolipid

SM

Sphingomyelin

SUL

Sulfatide

Notes

Acknowledgments

This work was supported by China Ministry of Science and Technology (International Cooperation Project no. 2012DFA31250-1).

Supplementary material

216_2015_8822_MOESM1_ESM.pdf (46 kb)
ESM 1 (PDF 45 kb)

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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Tingting Zhang
    • 1
  • Si Chen
    • 1
  • Xinle Liang
    • 1
  • Hong Zhang
    • 1
    Email author
  1. 1.School of Food Science and BiotechnologyZhejiang Gongshang UniversityHangzhouChina

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