Department of Chemistry & School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705-2222, USA.
Anal Bioanal Chem. 2010 Aug;397(8):3185-93. doi: 10.1007/s00216-010-3723-7. Epub 2010 Apr 25.
Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry (MS) is a rapid and sensitive analytical method that is well suited for determining molecular weights of peptides and proteins from complex samples. MALDI-MS can be used to profile the peptides and proteins from single-cell and small tissue samples without the need for extensive sample preparation. Furthermore, the recently developed MALDI imaging technique enables mapping of the spatial distribution of signaling molecules in tissue samples. Several examples of signaling molecule analysis at the single-cell and single-organ levels using MALDI-MS technology are highlighted followed by an outlook of future directions.
基质辅助激光解吸/电离(MALDI)质谱(MS)是一种快速、灵敏的分析方法,非常适合从复杂样品中测定肽和蛋白质的分子量。MALDI-MS 可用于分析单细胞和小组织样品中的肽和蛋白质,而无需进行广泛的样品制备。此外,最近开发的 MALDI 成像技术能够在组织样品中绘制信号分子的空间分布图谱。本文突出介绍了使用 MALDI-MS 技术在单细胞和单器官水平上分析信号分子的几个实例,然后展望了未来的方向。