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Contemporary lipidomic analytics: opportunities and pitfalls.

Corey Giles1, Ryusuke Takechi1, Virginie Lam1

  • 1Curtin Health Innovation Research Institute, Curtin University, WA, Australia; School of Public Health, Faculty of Health Sciences, Curtin University, WA, Australia.

Progress in Lipid Research
|July 1, 2018
PubMed
Summary

Lipidomic studies face challenges in analyzing all lipids, despite advances in mass spectrometry (MS). This review details lipidomics workflows for tissue analysis, covering sample preparation, quantification, and statistical modeling for comprehensive lipid profiling.

Keywords:
Analytical methodLipidomicsMass spectrometry (max 6 words)

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Area of Science:

  • Biochemistry
  • Analytical Chemistry
  • Systems Biology

Background:

  • Lipidomic studies are crucial for understanding cellular functions but are limited to analyzing only a subset of known lipids.
  • Electrospray ionization mass spectrometry (ESI-MS) has significantly advanced lipidomics research, offering versatility in detecting and quantifying diverse lipid species.
  • Current experimental procedures are often optimized for specific lipid classes, potentially hindering global lipidome analysis.

Purpose of the Study:

  • To review lipidomic approaches for investigating tissue lipid physiology.
  • To discuss the key stages in a lipidomics workflow, from sample preparation to statistical analysis.
  • To highlight considerations for comprehensive characterization of biological lipidomes.

Main Methods:

  • Review of complementary analytical techniques, including mass spectrometry (MS), nuclear magnetic resonance, and vibrational spectroscopy.
  • Focus on electrospray ionization mass spectrometry (ESI-MS) as a widely used technique in lipidomics.
  • Discussion of sample preparation, lipid species quantitation, and statistical modeling within the lipidomics workflow.

Main Results:

  • While analytical techniques have improved coverage, comprehensive lipid analysis remains a challenge.
  • The versatility of ESI-MS enables detection of diverse lipid species, but targeted approaches may limit global analysis.
  • Careful experimental design is essential for accurate characterization of tissue lipidomes.

Conclusions:

  • This review provides a framework for understanding lipidomic approaches in tissue lipid physiology.
  • Optimizing experimental procedures is critical for overcoming limitations in current lipidomic studies.
  • The discussed workflow components are essential for advancing comprehensive lipidome characterization.