Exploring the Lipidome: Current Lipid Extraction Techniques for Mass Spectrometry Analysis.

Area of Science:

• Biochemistry
• Analytical Chemistry

Background:

• Lipids play vital roles in cellular and systemic processes, including energy homeostasis and signaling.
• High-throughput lipid profiling enhances understanding of lipid functions in health and disease.
• Current liquid chromatography and mass spectrometry advances are hindered by lipid extraction bottlenecks.

Purpose of the Study:

• To review current lipid extraction techniques for mass spectrometry-based lipidomics.
• To discuss considerations, applications, and limitations of these methods for various biological matrices.

Main Methods:

• Literature review of lipid extraction methodologies.
• Analysis of techniques for untargeted and targeted lipidomic studies.
• Evaluation of extraction efficiency across diverse lipid classes and biological samples.

Main Results:

• Lipid extraction remains a critical challenge due to the diverse nature of lipids.
• Extraction yield variations can introduce bias in lipidomic data.
• Different techniques offer varying efficiencies for different lipid classes and sample types.

Conclusions:

• Standardized and efficient lipid extraction protocols are essential for reliable lipidomic analysis.
• Careful selection of extraction methods is necessary to minimize bias in complex biological matrices.
• Further development in lipid extraction is needed to fully leverage high-throughput lipid profiling.