Journal
MASS SPECTROMETRY REVIEWS
Volume 42, Issue 1, Pages 67-94Publisher
WILEY
DOI: 10.1002/mas.21704
Keywords
single cell analysis; metabolomics; mass spectrometry; single‐ cell metabolomics
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Single cell analysis is of increasing interest to the research community due to its ability to analyze cellular heterogeneity and discover new biomarkers. With advancements in technology, it is now possible to perform multiple omics at the single cell level. However, single-cell metabolomics poses unique challenges due to complex compound composition and the inability to amplify metabolites. Despite these challenges, significant progress has been made in mass spectrometry-based single-cell metabolomics.
Single cell analysis has drawn increasing interest from the research community due to its capability to interrogate cellular heterogeneity, allowing refined tissue classification and facilitating novel biomarker discovery. With the advancement of relevant instruments and techniques, it is now possible to perform multiple omics including genomics, transcriptomics, metabolomics or even proteomics at single cell level. In comparison with other omics studies, single-cell metabolomics (SCM) represents a significant challenge since it involves many types of dynamically changing compounds with a wide range of concentrations. In addition, metabolites cannot be amplified. Although difficult, considerable progress has been made over the past decade in mass spectrometry (MS)-based SCM in terms of processing technologies and biochemical applications. In this review, we will summarize recent progress in the development of promising MS platforms, sample preparation methods and SCM analysis of various cell types (including plant cell, cancer cell, neuron, embryo cell, and yeast cell). Current limitations and future research directions in the field of SCM will also be discussed.
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