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Kpaibe AP, Ben-Ameur R, Coussot G, Ladner Y, Montels J, Ake M, Perrin C. Evaluation of capillary zone electrophoresis for the quality control of complex biologic samples: Application to snake venoms. Electrophoresis 2017; 38:2050-2059. [DOI: 10.1002/elps.201700158] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 05/26/2017] [Accepted: 05/28/2017] [Indexed: 11/06/2022]
Affiliation(s)
- André P.S. Kpaibe
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247-CNRS-UM-ENSCM; Montpellier France
- Département de Chimie Analytique, Bromatologie, Chimie Minérale et Chimie Générale; Université Felix Houphouët Boigny - UFR Sciences Pharmaceutiques et Biologiques; Abidjan Côte d'Ivoire
| | - Randa Ben-Ameur
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247-CNRS-UM-ENSCM; Montpellier France
| | - Gaëlle Coussot
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247-CNRS-UM-ENSCM; Montpellier France
| | - Yoann Ladner
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247-CNRS-UM-ENSCM; Montpellier France
| | - Jérôme Montels
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247-CNRS-UM-ENSCM; Montpellier France
| | - Michèle Ake
- Département de Chimie Analytique, Bromatologie, Chimie Minérale et Chimie Générale; Université Felix Houphouët Boigny - UFR Sciences Pharmaceutiques et Biologiques; Abidjan Côte d'Ivoire
| | - Catherine Perrin
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247-CNRS-UM-ENSCM; Montpellier France
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2
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Ranjbar L, Foley JP, Breadmore MC. Multidimensional liquid-phase separations combining both chromatography and electrophoresis – A review. Anal Chim Acta 2017; 950:7-31. [DOI: 10.1016/j.aca.2016.10.025] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/17/2016] [Accepted: 10/20/2016] [Indexed: 01/31/2023]
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3
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Kohl FJ, Sánchez-Hernández L, Neusüß C. Capillary electrophoresis in two-dimensional separation systems: Techniques and applications. Electrophoresis 2014; 36:144-58. [DOI: 10.1002/elps.201400368] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 09/16/2014] [Accepted: 09/17/2014] [Indexed: 12/24/2022]
Affiliation(s)
- Felix J. Kohl
- Department of Chemistry; Aalen University; Aalen Germany
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4
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Kok MG, Somsen GW, de Jong GJ. The role of capillary electrophoresis in metabolic profiling studies employing multiple analytical techniques. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.06.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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5
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Kuehnbaum NL, Britz-McKibbin P. New Advances in Separation Science for Metabolomics: Resolving Chemical Diversity in a Post-Genomic Era. Chem Rev 2013; 113:2437-68. [DOI: 10.1021/cr300484s] [Citation(s) in RCA: 201] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Naomi L. Kuehnbaum
- Department of Chemistry
and Chemical Biology, McMaster University, Hamilton, Canada
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Improvement of the sensitivity of 2D LC-MEKC separation of phenolic acids and flavonoids natural antioxidants using the on-line preconcentration step. Electrophoresis 2012; 33:2464-73. [DOI: 10.1002/elps.201100594] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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8
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Liu Q, Jia L, Hu C. On-Line Concentration Methods for Analysis of Fat-Soluble Vitamins by MEKC. Chromatographia 2010. [DOI: 10.1365/s10337-010-1608-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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9
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A capillary electrochromatography-electron spray ionization-mass spectrometry method for simultaneous analysis of charged and neutral constituents of a hepatocarcinoma cell metabolome. J Chromatogr A 2009; 1216:8277-82. [PMID: 19616781 DOI: 10.1016/j.chroma.2009.06.074] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2009] [Revised: 06/09/2009] [Accepted: 06/26/2009] [Indexed: 11/20/2022]
Abstract
Although metabolome research is a rapidly expanding field in the postgenomic era, no single method exists for complete analysis of all the constituents of a metabolome. In this study, we developed a metabolome analysis method using a combination of capillary electrochromatography and electrospray ionization-mass spectrometry. The capillary electrochromatography column was prepared by surface modification of silica compounds (tetraethoxysilane and octyltriethoxysilane) in a fused-silica capillary column. The method was used to separate more than 100 charged and neutral compounds simultaneously. When 1 mM formic acid was used as the eluent, the cationic compounds were eluted rapidly, and then neutral and anionic compounds were eluted (in that order). The developed system was used to analyze the metabolome of a human hepatocellular carcinoma cell line (HepG2). Thirty-three peaks were detected, and eighteen compounds were identified, including marker compounds of hepatocellular cell activity, such as creatinine and homocysteine. Thus, the system was useful not only for metabolome analysis but also for diagnostic measurements of cell function.
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Liu Q, Liu Y, Guan Y, Jia L. Comparison of field-enhanced and pressure-assisted field-enhanced sample injection techniques for the analysis of water-soluble vitamins using CZE. J Sep Sci 2009; 32:1011-7. [DOI: 10.1002/jssc.200800598] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Li Y, de Silva PG, Xi L, van Winkle A, Lin JJC, Ahmed S, Geng ML. Separation of flavins and nicotinamide cofactors in Chinese hamster ovary cells by capillary electrophoresis. Biomed Chromatogr 2009; 22:1374-84. [PMID: 18814195 DOI: 10.1002/bmc.1068] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Simultaneous extraction, separation and quantitation of reduced nicotinamide adenine dinucleotide (NADH), reduced nicotinamide adenine dinucleotide phosphate (NADPH), flavin adenine dinucleotide (FAD) and flavin mononucleotide (FMN) in Chinese Hamster Ovary (CHO) cells were investigated. The separation of flavins and nicotinamide cofactors was performed by capillary electrophoresis with laser-induced fluorescence detection at the excitation wavelength of 325 nm. The separation protocol was established by investigating the excitation wavelength, high voltage and effects of buffer nature, pH and concentration. All endogenous fluorophores riboflavin, FAD, FMN, NADH and NADPH show wide linear range of quantitation. The limits of detection for the five compounds ranged from 4.5 to 23 nM. Extraction conditions were optimized for high-efficiency recovery of all endogenous fluorophores from CHO cells. To account for the complex matrix of cell extracts, a standard addition method was used to quantify FAD, FMN, NADH and NADPH in CHO cells. The quantitative results should be useful to reveal the metabolic status of cells. The protocols for extraction, separation and quantitation are readily adaptable to normal and cancer cell lines for the analysis of endogenous fluorophores.
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Affiliation(s)
- Ye Li
- Department of Chemistry and Center for Biocatalysis and Bioprocessing, University of Iowa, Iowa City, IA 52242, USA
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12
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Wu Z, Huang Z, Lehmann R, Zhao C, Xu G. The Application of Chromatography-Mass Spectrometry: Methods to Metabonomics. Chromatographia 2009. [DOI: 10.1365/s10337-009-0956-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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13
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Núñez O, Nakanishi K, Tanaka N. Preparation of monolithic silica columns for high-performance liquid chromatography. J Chromatogr A 2008; 1191:231-52. [DOI: 10.1016/j.chroma.2008.02.029] [Citation(s) in RCA: 174] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2007] [Revised: 02/07/2008] [Accepted: 02/08/2008] [Indexed: 10/22/2022]
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14
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van der Werf MJ, Overkamp KM, Muilwijk B, Koek MM, van der Werff-van der Vat BJC, Jellema RH, Coulier L, Hankemeier T. Comprehensive analysis of the metabolome of Pseudomonas putida S12 grown on different carbon sources. MOLECULAR BIOSYSTEMS 2008; 4:315-27. [PMID: 18354785 DOI: 10.1039/b717340g] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metabolomics is an emerging, powerful, functional genomics technology that involves the comparative non-targeted analysis of the complete set of metabolites in an organism. We have set-up a robust quantitative metabolomics platform that allows the analysis of 'snapshot' metabolomes. In this study, we have applied this platform for the comprehensive analysis of the metabolite composition of Pseudomonas putida S12 grown on four different carbon sources, i.e. fructose, glucose, gluconate and succinate. This paper focuses on the microbial aspects of analyzing comprehensive metabolomes, and demonstrates that metabolomes can be analyzed reliably. The technical (i.e. sample work-up and analytical) reproducibility was on average 10%, while the biological reproducibility was approximately 40%. Moreover, the energy charge values of the microbial samples generated were determined, and indicated that no biotic or abiotic changes had occurred during sample work-up and analysis. In general, the metabolites present and their concentrations were very similar after growth on the different carbon sources. However, specific metabolites showed large differences in concentration, especially the intermediates involved in the degradation of the carbon sources studied. Principal component discriminant analysis was applied to identify metabolites that are specific for, i.e. not necessarily the metabolites that show those largest differences in concentration, cells grown on either of these four carbon sources. For selected enzymatic reactions, i.e. the glucose-6-phosphate isomerase, triosephosphate isomerase and phosphoglyceromutase reactions, the apparent equilibrium constants (K(app)) were calculated. In several instances a carbon source-dependent deviation between the apparent equilibrium constant (K(app)) and the thermodynamic equilibrium constant (K(eq)) was observed, hinting towards a potential point of metabolic regulation or towards bottlenecks in biosynthesis routes. For glucose-6-phosphate isomerase and phosphoglyceromutase, the K(app) was larger than K(eq), and the results suggested that the specific enzymatic activities of these two enzymes were too low to reach the thermodynamic equilibrium in growing cells. In contrast, with triosephosphate isomerase the K(app) was smaller than K(eq), and the results suggested that this enzyme is kinetically controlled.
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Edwards JL, Edwards RL, Reid KR, Kennedy RT. Effect of decreasing column inner diameter and use of off-line two-dimensional chromatography on metabolite detection in complex mixtures. J Chromatogr A 2007; 1172:127-34. [PMID: 17961581 PMCID: PMC2710303 DOI: 10.1016/j.chroma.2007.09.075] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2007] [Revised: 08/30/2007] [Accepted: 09/24/2007] [Indexed: 11/29/2022]
Abstract
Capillary liquid chromatography coupled with electrospray ionization to a quadrupole ion trap mass spectrometer was explored as a method for the analysis of polar anionic compounds in complex metabolome mixtures. A ternary mobile phase gradient, consisting of aqueous acidic, aqueous neutral and organic phases in combination with an aqueous compatible reversed-phase stationary phase allowed metabolites with a wide range of polarities to be resolved and detected. Detection limits in the full scan mode for glycolysis and tricarboxylic acid cycle intermediates were from 0.9 to 36fmol. Using this system, 111+/-9 (n=3) metabolites were detected in Escherichia coli lysate samples. Reducing column I.D. from 50 to 25microm increased the number of metabolites detected to 156+/-17 (n=3). The improvement in number of metabolites detected was attributed to an increase in separation efficiency, an increase in sensitivity, and a decrease in adduct formation. Implementation of a second separation mode, strong anion exchange, to fractionate the sample prior to capillary RPLC increased the number of metabolites detected to 244+/-21 (n=3). This improvement was attributed to the increased peak capacity which decreased co-elution of molecules enabling more sensitive detection by mass spectrometry. This system was also applied to islets of Langerhans where more significant improvements in metabolite detection were observed. In islets, 391+/-33 small molecules were detected using the two-dimensional separation. The results demonstrate that column miniaturization and use of two-dimensional separations can yield a significant improvement in the coverage of the metabolome.
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Affiliation(s)
- James L. Edwards
- Department of Chemistry University of Michigan Ann Arbor, MI USA
| | - Rachel L. Edwards
- Department of Microbiology and Immunology University of Michigan Ann Arbor, MI USA
| | - Kendra R. Reid
- Department of Chemistry University of Michigan Ann Arbor, MI USA
| | - Robert T. Kennedy
- Department of Chemistry University of Michigan Ann Arbor, MI USA
- Department of Pharmacology University of Michigan Ann Arbor, MI USA
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van der Werf MJ, Overkamp KM, Muilwijk B, Coulier L, Hankemeier T. Microbial metabolomics: Toward a platform with full metabolome coverage. Anal Biochem 2007; 370:17-25. [PMID: 17765195 DOI: 10.1016/j.ab.2007.07.022] [Citation(s) in RCA: 136] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2007] [Revised: 07/18/2007] [Accepted: 07/20/2007] [Indexed: 11/28/2022]
Abstract
Achieving metabolome data with satisfactory coverage is a formidable challenge in metabolomics because metabolites are a chemically highly diverse group of compounds. Here we present a strategy for the development of an advanced analytical platform that allows the comprehensive analysis of microbial metabolomes. Our approach started with in silico metabolome information from three microorganisms-Escherichia coli, Bacillus subtilis, and Saccharomyces cerevisiae-and resulted in a list of 905 different metabolites. Subsequently, these metabolites were classified based on their physicochemical properties, followed by the development of complementary gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry methods, each of which analyzes different metabolite classes. This metabolomics platform, consisting of six different analytical methods, was applied for the analysis of the metabolites for which commercial standards could be purchased (399 compounds). Of these 399 metabolites, 380 could be analyzed with the platform. To demonstrate the potential of this metabolomics platform, we report on its application to the analysis of the metabolome composition of mid-logarithmic E. coli cells grown on a mineral salts medium using glucose as the carbon source. Of the 431 peaks detected, 235 (=176 unique metabolites) could be identified. These include 61 metabolites that were not previously identified or annotated in existing E. coli databases.
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17
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Du Y, Jia L, Liu H, Xing D. Comparison of On‐Line Concentration Methods in Capillary Zone Electrophoresis for Analysis of Water‐Soluble Vitamins. ANAL LETT 2007. [DOI: 10.1080/00032710701486199] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Jia L, Liu Y, Du Y, Xing D. Pressurized capillary electrochromatographic analysis of water-soluble vitamins by combining with on-line concentration technique. J Chromatogr A 2007; 1154:416-22. [PMID: 17442323 DOI: 10.1016/j.chroma.2007.03.080] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2007] [Revised: 03/17/2007] [Accepted: 03/23/2007] [Indexed: 11/21/2022]
Abstract
A pressurized capillary electrochromatography (pCEC) system was developed for the separation of water-soluble vitamins, in which UV absorbance was used as the detection method and a monolithic silica-ODS column as the separation column. The parameters (type and content of organic solvent in the mobile phase, type and concentration of electrolyte, pH of the electrolyte buffer, applied voltage and flow rate) affecting the separation resolution were evaluated. The combination of two on-line concentration techniques, namely, solvent gradient zone sharpening effect and field-enhanced sample stacking, was utilized to improve detection sensitivity, which proved to be beneficial to enhance the detection sensitivity by enabling the injection of large volumes of samples. Coupling electrokinetic injection with the on-line concentration techniques was much more beneficial for the concentration of positively charged vitamins. Comparing with the conventional injection mode, the enhancement in the detection sensitivities of water-soluble vitamins using the on-line concentration technique is in the range of 3 to 35-fold. The developed pCEC method was applied to evaluate water-soluble vitamins in corns.
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Affiliation(s)
- Li Jia
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China.
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Tasaki Y, Okada T. Ice Chromatography. Characterization of Water−Ice as a Chromatographic Stationary Phase. Anal Chem 2006; 78:4155-60. [PMID: 16771546 DOI: 10.1021/ac0602470] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Water-ice has been characterized as a stationary phase for liquid chromatography. Solutes having two or more polar groups are retained on this stationary phase with THF/hexane as the mobile phase, suggesting that multipoint interactions are required for measurable solute retention. Chromatographic separation of phenols or crown ethers on water-ice is possible. The ice surface is expected to provide two different adsorption sites coming from the OH and O dangling bonds. Although the solute partition into the quasiliquid layer is also considered, the dependence of the retention times on the THF concentration implies that the interaction of solutes with the water-ice surface rather than the partition into the quasiliquid layer is responsible for solute retention. A retention model suggests that the number of adsorption sites for a crown ether depends on its ring size, whereas two sites are involved for the retention of phenols having two hydroxyl groups. Although hydroxyl groups can act as both a hydrogen bond donor and an acceptor, the interaction with the ice OH sites, which are exposed to the surroundings in comparison with the ice O sites, is more important. However, when an acyclic polyether is added to the mobile phase, its adsorption onto the water ice surface allows the creation of the O sites that phenols can approach without steric hindrance. In the presence of the polyethers adsorbed on the ice surface, the retention of phenols is enhanced, whereas crown ethers become less retained due to the competitive adsorption of the polyethers.
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Affiliation(s)
- Yuiko Tasaki
- Department of Chemistry, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551, Japan
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