Mass spectral imaging and profiling of neuropeptides at the organ and cellular domains.

Mass spectral imaging and profiling of neuropeptides at the organ and cellular domains.
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DOI:
10.1007/s00216-010-3723-7
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发表时间:
2010-08
影响因子:
4.3
通讯作者:
Li L
Li L
中科院分区:
化学2区
文献类型:
--
作者:
Chen R;Li L

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基质辅助激光解吸/电离(MALDI)质谱分析(MS)是一种快速、灵敏的分析方法,非常适合于从复杂样品中测定多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,而不需要大量的样品制备。此外,最近开发的MALDI成像技术能够绘制组织样本中信号分子的空间分布。重点介绍了利用MALDI-MS技术在单细胞和单器官水平上进行信号分子分析的几个例子,并展望了未来的发展方向。
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.
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