期刊
FRONTIERS IN MEDICINE
卷 7, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fmed.2020.616578
关键词
metabolomic analyses; sphingomyelin; ceramide; sphingosine-1-phosphate; mass spectrometry-LC-MS/MS; theranostic
资金
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Germany
Sphingolipids are a highly diverse group of lipids with mass spectrometry being a valuable tool for their qualitative and quantitative identification, especially in biomedical applications. Therefore, considering the entire experimental strategy is crucial, from sample collection and preparation to data analysis and interpretation. Expert opinions suggest that mass spectrometry plays a key role in investigating cellular and compartment-specific stress responses, with the integration of multiple datasets being crucial for understanding human health and disease response.
Scientific Background: Sphingolipids are a highly diverse group of lipids with respect to physicochemical properties controlling either structure, distribution, or function, all of them regulating cellular response in health and disease. Mass spectrometry, on the other hand, is an analytical technique characterizing ionized molecules or fragments thereof by mass-to-charge ratios, which has been prosperingly developed for rapid and reliable qualitative and quantitative identification of lipid species. Parallel to best performance of in-depth chromatographical separation of lipid classes, preconditions of precise quantitation of unique molecular species by preprocessing of biological samples have to be fulfilled. As a consequence, lipid profiles across model systems and human individuals, esp. complex (clinical) samples, have become eminent over the last couple of years due to sensitivity, specificity, and discriminatory capability. Therefore, it is significance to consider the entire experimental strategy from sample collection and preparation, data acquisition, analysis, and interpretation. Areas Covered: In this review, we outline considerations with clinical (i.e., human) samples with special emphasis on sample handling, specific physicochemical properties, target measurements, and resulting profiling of sphingolipids in biomedicine and translational research to maximize sensitivity and specificity as well as to provide robust and reproducible results. A brief commentary is also provided regarding new insights of clinical sphingolipidomics in translational sepsis research. Expert Opinion: The role of mass spectrometry of sphingolipids and related species (sphingolipidomics) to investigate cellular and compartment-specific response to stress, e.g., in generalized infection and sepsis, is on the rise and the ability to integrate multiple datasets from diverse classes of biomolecules by mass spectrometry measurements and metabolomics will be crucial to fostering our understanding of human health as well as response to disease and treatment.
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