期刊
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
卷 21, 期 12, 页码 1969-1978出版社
SPRINGER
DOI: 10.1016/j.jasms.2010.08.008
关键词
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资金
- ZonMw Horizon [93519026]
Imaging MS now enables the parallel analysis of hundreds of biomolecules, spanning multiple molecular classes, which allows tissues to be described by their molecular content and distribution When combined with advanced data analysis routines, tissues can be analyzed and classified based solely on their molecular content Such molecular histology techniques have been used to distinguish regions with differential molecular signatures that could not be distinguished using established histologic tools However, its potential to provide an independent, complementary analysis of clinical tissues has been limited by the very large file sizes and large number of discrete variables associated with imaging MS experiments Here we demonstrate data reduction tools, based on automated feature identification and extraction, for peptide, protein, and lipid imaging MS, using multiple imaging MS technologies, that reduce data loads and the number of variables by >100x, and that highlight highly-localized features that can be missed using standard data analysis strategies It is then demonstrated how these capabilities enable multivariate analysts on large imaging MS datasets spanning multiple tissues (J Am Soc Mass Spectrom 2010, 21, 1969-1978) (C) 2010 American Society for Mass Spectrometry
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