Cell-selective labeling using amino acid precursors for proteomic studies of multicellular environments.
Cell-selective labeling using amino acid precursors for proteomic studies of multicellular environments.
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DOI:
10.1038/nmeth.2529
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发表时间:
2013-08
期刊:
影响因子:
48
通讯作者:
Millerephrin, Martin L.
中科院分区:
文献类型:
--
作者:
Gauthier, Nicholas P.;Soufi, Boumediene;Walkowicz, William E.;Pedicord, Virginia A.;Mavrakis, Konstantinos J.;Macek, Boris;Gin, David Y.;Sander, Chris;Millerephrin, Martin L.
To address limitations of current high-throughput methods for studying cell-cell communication and determining the cell-of-origin of proteins in multicellular environments, we have developed a technique that selectively and continuously labels the proteome of individual cell types in co-culture. Through transgenic expression of exogenous amino acid biosynthesis enzymes, vertebrate cells overcome their dependence on essential amino acids and can be selectively labeled through metabolic incorporation of amino acids produced from heavy isotope-labeled precursors. We have named this method Type specific labeling with Amino acid Precursors (CTAP). Testing CTAP in several human and mouse cell lines, we were able to differentially label the proteome of distinct cell populations in co-culture and determine the relative expression of proteins by quantitative mass spectrometry. In addition, CTAP successfully identified the cell-of-origin of extracellular proteins in co-culture, highlighting its potential use in biomarker discovery for linking secreted factors to their cellular source.
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影响因子:
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作者:
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通讯作者:
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影响因子:
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作者:
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DOI:
10.1016/0167-4781(94)90064-7
发表时间:
1994-10-18
期刊:
BIOCHIMICA ET BIOPHYSICA ACTA-GENE STRUCTURE AND EXPRESSION
影响因子:
--
作者:
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通讯作者:
REES, WD