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Quantification of Drug Molecules in Live Single Cells Using the Single-Probe Mass Spectrometry Technique
Analyzing cellular constituents on the single-cell level through mass spectrometry (MS) allows for a wide range of compounds to be studied simultaneously. However, there is a need for quantitative single-cell mass spectrometry (qSCMS) methods to fully characterize drug efficacy from individual cells...
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Published in: | Analytical chemistry (Washington) 2019-07, Vol.91 (14), p.9018-9024 |
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creator | Pan, Ning Standke, Shawna J Kothapalli, Naga Rama Sun, Mei Bensen, Ryan C Burgett, Anthony W. G Yang, Zhibo |
description | Analyzing cellular constituents on the single-cell level through mass spectrometry (MS) allows for a wide range of compounds to be studied simultaneously. However, there is a need for quantitative single-cell mass spectrometry (qSCMS) methods to fully characterize drug efficacy from individual cells within cell populations. In this study, qSCMS experiments were carried out using the Single-probe MS technique. The method was successfully used to perform rapid absolute quantifications of the anticancer drug irinotecan in individual mammalian cancer cells under ambient conditions in real time. Traditional liquid chromatography/mass spectrometry (LC/MS) quantifications of irinotecan in cell lysate samples were used to compare the results from Single-probe qSCMS. This technique showcases heterogeneity of drug efficacy on the single-cell level. |
doi_str_mv | 10.1021/acs.analchem.9b01311 |
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subjects | Analytical chemistry Antineoplastic Agents - analysis Cell Line, Tumor Chemistry Heterogeneity Humans Ions Irinotecan Irinotecan - analysis Liquid chromatography Mass spectrometry Mass Spectrometry - methods Mass spectroscopy Population studies Scientific imaging Single-Cell Analysis - methods Spectroscopy |
title | Quantification of Drug Molecules in Live Single Cells Using the Single-Probe Mass Spectrometry Technique |
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