期刊
MASS SPECTROMETRY REVIEWS
卷 42, 期 6, 页码 2404-2425出版社
WILEY
DOI: 10.1002/mas.21789
关键词
intercellular communication; mass spectrometry; peptide hormones; peptidomics; signaling peptides
类别
This article summarizes and discusses the application of mass spectrometry (MS) in discovering peptide hormones, including targeted and untargeted methods. Although peptidomics is expected to discover new peptide hormones in an unbiased manner, only a limited number of successful cases have been reported. The challenges and corresponding measures in peptidomics, as well as emerging technologies for comprehensive study of endogenous peptide hormones, are also discussed.
Endogenous peptide hormones represent an essential class of biomolecules, which regulate cell-cell communications in diverse physiological processes of organisms. Mass spectrometry (MS) has been developed to be a powerful technology for identifying and quantifying peptides in a highly efficient manner. However, it is difficult to directly identify these peptide hormones due to their diverse characteristics, dynamic regulations, low abundance, and existence in a complicated biological matrix. Here, we summarize and discuss the roles of targeted and untargeted MS in discovering peptide hormones using bioassay-guided purification, bioinformatics screening, or the peptidomics-based approach. Although the peptidomics approach is expected to discover novel peptide hormones unbiasedly, only a limited number of successful cases have been reported. The critical challenges and corresponding measures for peptidomics from the steps of sample preparation, peptide extraction, and separation to the MS data acquisition and analysis are also discussed. We also identify emerging technologies and methods that can be integrated into the discovery platform toward the comprehensive study of endogenous peptide hormones.
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