151
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Atzrodt J, Derdau V, Kerr WJ, Reid M. Deuterium- und tritiummarkierte Verbindungen: Anwendungen in den modernen Biowissenschaften. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201704146] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jens Atzrodt
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry; Industriepark Höchst, G876 65926 Frankfurt Deutschland
| | - Volker Derdau
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry; Industriepark Höchst, G876 65926 Frankfurt Deutschland
| | - William J. Kerr
- Department of Pure and Applied Chemistry, WestCHEM; University of Strathclyde; 295 Cathedral Street Glasgow Scotland G1 1XL Großbritannien
| | - Marc Reid
- Department of Pure and Applied Chemistry, WestCHEM; University of Strathclyde; 295 Cathedral Street Glasgow Scotland G1 1XL Großbritannien
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152
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Atzrodt J, Derdau V, Kerr WJ, Reid M. Deuterium- and Tritium-Labelled Compounds: Applications in the Life Sciences. Angew Chem Int Ed Engl 2018; 57:1758-1784. [PMID: 28815899 DOI: 10.1002/anie.201704146] [Citation(s) in RCA: 407] [Impact Index Per Article: 67.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 07/27/2017] [Indexed: 12/19/2022]
Abstract
Hydrogen isotopes are unique tools for identifying and understanding biological and chemical processes. Hydrogen isotope labelling allows for the traceless and direct incorporation of an additional mass or radioactive tag into an organic molecule with almost no changes in its chemical structure, physical properties, or biological activity. Using deuterium-labelled isotopologues to study the unique mass-spectrometric patterns generated from mixtures of biologically relevant molecules drastically simplifies analysis. Such methods are now providing unprecedented levels of insight in a wide and continuously growing range of applications in the life sciences and beyond. Tritium (3 H), in particular, has seen an increase in utilization, especially in pharmaceutical drug discovery. The efforts and costs associated with the synthesis of labelled compounds are more than compensated for by the enhanced molecular sensitivity during analysis and the high reliability of the data obtained. In this Review, advances in the application of hydrogen isotopes in the life sciences are described.
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Affiliation(s)
- Jens Atzrodt
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry, Industriepark Höchst, G876, 65926, Frankfurt, Germany
| | - Volker Derdau
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry, Industriepark Höchst, G876, 65926, Frankfurt, Germany
| | - William J Kerr
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral Street, Glasgow, Scotland, G1 1XL, UK
| | - Marc Reid
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral Street, Glasgow, Scotland, G1 1XL, UK
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153
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Cheng J, Lan W, Zheng G, Gao X. Metabolomics: A High-Throughput Platform for Metabolite Profile Exploration. Methods Mol Biol 2018. [PMID: 29536449 DOI: 10.1007/978-1-4939-7717-8_16] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Metabolomics aims to quantitatively measure small-molecule metabolites in biological samples, such as bodily fluids (e.g., urine, blood, and saliva), tissues, and breathe exhalation, which reflects metabolic responses of a living system to pathophysiological stimuli or genetic modification. In the past decade, metabolomics has made notable progresses in providing useful systematic insights into the underlying mechanisms and offering potential biomarkers of many diseases. Metabolomics is a complementary manner of genomics and transcriptomics, and bridges the gap between genotype and phenotype, which reflects the functional output of a biological system interplaying with environmental factors. Recently, the technology of metabolomics study has been developed quickly. This review will discuss the whole pipeline of metabolomics study, including experimental design, sample collection and preparation, sample detection and data analysis, as well as mechanism interpretation, which can help understand metabolic effects and metabolite function for living organism in system level.
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Affiliation(s)
- Jing Cheng
- Department of Medical Instrument, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Wenxian Lan
- State Key Laboratory of Bio-Organic and Natural Product Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Guangyong Zheng
- Bio-Med Big Data Center, Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
| | - Xianfu Gao
- Key Laboratory of Systems Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
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154
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Abstract
Blood is a widely used biofluid in discovery metabolomic research to search for clinical metabolite biomarkers of diseases. Analyzing the entire human blood metabolome is a major analytical challenge, as blood, after being processed into serum or plasma, contains thousands of metabolites with diverse chemical and physical properties as well as a wide range of concentrations. We describe an enabling method based on high-performance chemical isotope labeling (CIL) liquid chromatography-mass spectrometry (LC-MS) for in-depth quantification of the metabolomic differences in comparative blood samples with high accuracy and precision.
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Affiliation(s)
- Wei Han
- Department of Chemistry, University of Alberta, Edmonton, AB, Canada
| | - Liang Li
- Department of Chemistry, University of Alberta, Edmonton, AB, Canada.
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155
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Doran ML, Knee JM, Wang N, Rzezniczak TZ, Parkes TL, Li L, Merritt TJS. Metabolomic analysis of oxidative stress: Superoxide dismutase mutation and paraquat induced stress in Drosophila melanogaster. Free Radic Biol Med 2017; 113:323-334. [PMID: 29031835 DOI: 10.1016/j.freeradbiomed.2017.10.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 10/02/2017] [Accepted: 10/07/2017] [Indexed: 10/18/2022]
Abstract
Oxidative stress results in substantial biochemical and physiological perturbations in essentially all organisms. To determine the broad metabolic effects of oxidative stress, we have quantified the response in Drosophila melanogaster to both genetically and environmentally derived oxidative stress. Flies were challenged with loss of Superoxide dismutase activity or chronic or acute exposure to the oxidizing chemical paraquat. Metabolic changes were then quantified using a recently developed chemical isotope labeling (CIL) liquid chromatography - mass spectrometry (LC-MS) platform that targets the carboxylic acid and amine/phenol submetabolomes with high metabolic coverage. We discovered wide spread changes in both submetabolomes in response to all three types of stresses including: changes to the urea cycle, tryptophan metabolism, porphyrin metabolism, as well as a series of metabolic pathways involved in glutathione synthesis. Strikingly, while there are commonalities across the conditions, all three resulted in different metabolomic responses, with the greatest difference between the genetic and environmental responses. Genetic oxidative stress resulted in substantially more widespread effects, both in terms of the percent of the metabolome altered, and the magnitude of changes in individual metabolites. Chronic and acute environmental stress resulted in more similar responses although both were distinct from genetic stress. Overall, these results indicate that the metabolomic response to oxidative stress is complex, reaching across multiple metabolic pathways, with some shared features but with more features unique to different, specific stressors.
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Affiliation(s)
- Marney L Doran
- Department of Chemistry & Biochemistry, Laurentian University, Sudbury, ON, Canada P3E 2C6
| | - Jose M Knee
- Department of Chemistry & Biochemistry, Laurentian University, Sudbury, ON, Canada P3E 2C6
| | - Nan Wang
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Teresa Z Rzezniczak
- Department of Chemistry & Biochemistry, Laurentian University, Sudbury, ON, Canada P3E 2C6
| | - Tony L Parkes
- Faculty of Arts & Science - Biology, Nipissing University, North Bay, ON, Canada P1B 8L7
| | - Liang Li
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Thomas J S Merritt
- Department of Chemistry & Biochemistry, Laurentian University, Sudbury, ON, Canada P3E 2C6.
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156
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Huang KY, Ong SC, Wu CC, Hsu CW, Lin HC, Fang YK, Cheng WH, Huang PJ, Chiu CH, Tang P. Metabolic reprogramming of hydrogenosomal amino acids in Trichomonas vaginalis under glucose restriction. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2017; 52:630-637. [PMID: 29198954 DOI: 10.1016/j.jmii.2017.10.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 06/12/2017] [Accepted: 10/29/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND Glucose is the major energy source that is converted to pyruvate for ATP generation in the trichomonad hydrogenosome. Under glucose restriction (GR), the regulation of amino acids metabolism is crucial for trichomonad growth and survival. RNA-sequencing (RNA-seq) analysis has been used to identify differentially expressed genes in Trichomonas vaginalis under GR, leading to significant advances in understanding adaptive responses of amino acid metabolism to GR. However, the levels of amino acid metabolites modulated by GR are unknown in T. vaginalis. METHODS Herein, we describe a comprehensive metabolomic analysis of amino acid metabolites in the hydrogenosome using liquid chromatography Fourier transform ion cyclotron resonance mass spectrometry (LC-FT MS). The relative abundance of 17 hydrogenosomal amino acids was analyzed under GR and high-glucose (HG) conditions. RESULTS Levels of most amino acids were higher in GR culture. Arginine was not detectable in either HG or GR cultures; however, its metabolic end-product proline was slightly increased under GR, suggesting that the arginine dihydrolase pathway was more activated by GR. Additionally, methionine catabolism was less stimulated under GR because of greater methionine accumulation. Furthermore, branched chain amino acids (BCAA), including leucine, isoleucine and valine, as well as phenylalanine and alanine, markedly accumulated under GR, indicating that glutamate-related metabolic pathways were remarkably enhanced in this setting. Our metabolomic analysis combined with previous RNA-seq data confirm the existence of several amino acid metabolic pathways in the hydrogenosome and highlight their potentially important roles in T. vaginalis under glucose deprivation.
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Affiliation(s)
- Kuo-Yang Huang
- Graduate Institute of Pathology and Parasitology, National Defense Medical Center, Taipei, Taiwan
| | - Seow-Chin Ong
- Molecular Regulation and Bioinformatics Laboratory, Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chih-Ching Wu
- Graduate Institute of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chia-Wei Hsu
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan
| | - Hsin-Chung Lin
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan; Division of Clinical Pathology, Department of Pathology, Tri-Service General Hospital, Taipei, Taiwan
| | - Yi-Kai Fang
- Molecular Regulation and Bioinformatics Laboratory, Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Wei-Hung Cheng
- Molecular Regulation and Bioinformatics Laboratory, Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Po-Jung Huang
- Department of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Cheng-Hsun Chiu
- Molecular Infectious Diseases Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Petrus Tang
- Molecular Regulation and Bioinformatics Laboratory, Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Molecular Infectious Diseases Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
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157
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Jiang R, Jiao Y, Zhang P, Liu Y, Wang X, Huang Y, Zhang Z, Xu F. Twin Derivatization Strategy for High-Coverage Quantification of Free Fatty Acids by Liquid Chromatography–Tandem Mass Spectrometry. Anal Chem 2017; 89:12223-12230. [DOI: 10.1021/acs.analchem.7b03020] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ruiqi Jiang
- Key
Laboratory of Drug Quality Control and Pharmacovigilance, Ministry
of Education, ‡State Key Laboratory of Natural Medicine, and §Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Yu Jiao
- Key
Laboratory of Drug Quality Control and Pharmacovigilance, Ministry
of Education, ‡State Key Laboratory of Natural Medicine, and §Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Pei Zhang
- Key
Laboratory of Drug Quality Control and Pharmacovigilance, Ministry
of Education, ‡State Key Laboratory of Natural Medicine, and §Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Yong Liu
- Key
Laboratory of Drug Quality Control and Pharmacovigilance, Ministry
of Education, ‡State Key Laboratory of Natural Medicine, and §Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Xu Wang
- Key
Laboratory of Drug Quality Control and Pharmacovigilance, Ministry
of Education, ‡State Key Laboratory of Natural Medicine, and §Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Yin Huang
- Key
Laboratory of Drug Quality Control and Pharmacovigilance, Ministry
of Education, ‡State Key Laboratory of Natural Medicine, and §Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Zunjian Zhang
- Key
Laboratory of Drug Quality Control and Pharmacovigilance, Ministry
of Education, ‡State Key Laboratory of Natural Medicine, and §Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Fengguo Xu
- Key
Laboratory of Drug Quality Control and Pharmacovigilance, Ministry
of Education, ‡State Key Laboratory of Natural Medicine, and §Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, China
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158
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Malec PA, Oteri M, Inferrera V, Cacciola F, Mondello L, Kennedy RT. Determination of amines and phenolic acids in wine with benzoyl chloride derivatization and liquid chromatography–mass spectrometry. J Chromatogr A 2017; 1523:248-256. [DOI: 10.1016/j.chroma.2017.07.061] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 07/14/2017] [Accepted: 07/18/2017] [Indexed: 01/07/2023]
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159
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Luo X, Li L. Metabolomics of Small Numbers of Cells: Metabolomic Profiling of 100, 1000, and 10000 Human Breast Cancer Cells. Anal Chem 2017; 89:11664-11671. [DOI: 10.1021/acs.analchem.7b03100] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Xian Luo
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Liang Li
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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160
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Han W, Sapkota S, Camicioli R, Dixon RA, Li L. Profiling novel metabolic biomarkers for Parkinson's disease using in-depth metabolomic analysis. Mov Disord 2017; 32:1720-1728. [PMID: 28880465 DOI: 10.1002/mds.27173] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 07/17/2017] [Accepted: 08/18/2017] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE To profile the amine/phenol submetabolome to determine potential metabolite biomarkers associated with Parkinson's disease (PD) and PD with incipient dementia. METHODS At baseline of a 3-wave (18-month intervals) longitudinal study, serum samples were collected from 42 healthy controls and 43 PD patients. By wave 3 (year 3), 16 PD patients were diagnosed with dementia and were classified as PD with incipient dementia at baseline. Metabolomic profiling using dansylation isotope labeling liquid chromatography mass spectrometry was conducted to compare controls with the full PD, PD with no dementia, and PD with incipient dementia groups. RESULTS Metabolomic analyses detected 719 common metabolites in 80% of the samples. Some were significantly altered in pairwise comparison of different groups (fold change of >1.2 or <0.83 with q < 0.05). We discriminated PD and controls by using a 5-metabolite panel, vanillic acid, 3-hydroxykynurenine, isoleucyl-alanine, 5-acetylamino-6-amino-3-methyluracil, and theophylline. The receiver operating characteristic curve produced an area-under-the-curve value of 0.955 with 87.5% sensitivity and 93.0% specificity. In comparing PD with no dementia with PD with incipient dementia, we used an 8-metabolite panel, His-Asn-Asp-Ser, 3,4-dihydroxyphenylacetone, desaminotyrosine, hydroxy-isoleucine, alanyl-alanine, putrescine [-2H], purine [+O] and its riboside. This produced an area-under-the-curve value of 0.862 with 80.0% sensitivity and 77.0% specificity. CONCLUSIONS The significantly altered metabolites can be used to differentiate (1) PD patients from healthy controls with high accuracy and (2) the stable PD with no dementia group from those with incipient dementia. Following further validation in larger cohorts, these metabolites could be used for both discrimination and establishing prognosis in PD. © 2017 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Wei Han
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Shraddha Sapkota
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Richard Camicioli
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada.,Department of Medicine (Neurology), University of Alberta, Edmonton, Alberta, Canada
| | - Roger A Dixon
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada.,Department of Psychology, University of Alberta, Edmonton, Alberta, Canada
| | - Liang Li
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
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161
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Lin YR, Huang MF, Wu YY, Liu MC, Huang JH, Chen Z, Shiue YL, Wu CE, Liang SS. Reductive amination derivatization for the quantification of garlic components by isotope dilution analysis. Food Chem 2017; 230:1-5. [PMID: 28407889 DOI: 10.1016/j.foodchem.2017.02.119] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 01/13/2017] [Accepted: 02/23/2017] [Indexed: 12/11/2022]
Abstract
In this work, we synthesized internal standards for four garlic organosulfur compounds (OSCs) by reductive amination with 13C, D2-formaldehyde, and developed an isotope dilution analysis method to quantitate these organosulfur components in garlic samples. Internal standards were synthesized for internal absolute quantification of S-allylcysteine (SAC), S-allylcysteine sulfoxide (alliin), S-methylcysteine (SMC), and S-ethylcysteine (SEC). We used a multiple reaction monitoring (MRM) to detect 13C, D2-formaldehyde-modified OSCs by ultrahigh-performance liquid phase chromatography coupled with tandem mass spectrometry (UHPLC-MS/MS) and obtained MS spectra showing different ratios of 13C, D2-formaldehyde-modified and H2-formaldehyde-modified compounds. The resulting labeled and unlabeled OSCs were exhibited correlation coefficient (R2) ranged from 0.9989 to 0.9994, respectively. The average recoveries for four OSCs at three concentration levels ranged from 89% to 105%. By 13C, D2-formaldehyde and sodium cyanoborohydride, the reductive amination-based method can be utilized to generate novel internal standard for isotope dilution and to extend the quantitative application.
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Affiliation(s)
- Yi-Reng Lin
- Department of Biotechnology, School of Environment and Life Sciences, Fooyin University, Kaohsiung, Taiwan
| | - Mei-Fang Huang
- Department of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - You-Ying Wu
- Department of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Meng-Chieh Liu
- Department of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jing-Heng Huang
- Department of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ziyu Chen
- Department of Medicinal and Applied Chemistry, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yow-Ling Shiue
- Institute of Biomedical Science, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Chia-En Wu
- Department of Pharmacy and Master Program, College of Pharmacy and Health Care, Tajen University, Pingtung, Taiwan
| | - Shih-Shin Liang
- Department of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan; Institute of Biomedical Science, National Sun Yat-Sen University, Kaohsiung, Taiwan.
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162
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Chen D, Han W, Su X, Li L, Li L. Overcoming Sample Matrix Effect in Quantitative Blood Metabolomics Using Chemical Isotope Labeling Liquid Chromatography Mass Spectrometry. Anal Chem 2017; 89:9424-9431. [PMID: 28787119 DOI: 10.1021/acs.analchem.7b02240] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Blood is widely used for discovery metabolomics to search for disease biomarkers. However, blood sample matrix can have a profound effect on metabolome analysis, which can impose an undesirable restriction on the type of blood collection tubes that can be used for blood metabolomics. We investigated the effect of blood sample matrix on metabolome analysis using a high-coverage and quantitative metabolome profiling technique based on differential chemical isotope labeling (CIL) LC-MS. We used 12C-/13C-dansylation LC-MS to perform relative quantification of the amine/phenol submetabolomes of four types of samples (i.e., serum, EDTA plasma, heparin plasma, and citrate plasma) collected from healthy individuals and compare their metabolomic results. From the analysis of 80 plasma and serum samples in experimental triplicate, we detected a total of 3651 metabolites with an average of 1818 metabolites per run (n = 240). The number of metabolites detected and the precision and accuracy of relative quantification were found to be independent of the sample type. Within each sample type, the metabolome data set could reveal biological variation (e.g., sex separation). Although the relative concentrations of some individual metabolites might be different in the four types of samples, for sex separation, all 66 significant metabolites with larger fold-changes (FC ≥ 2 and p < 0.05) found in at least one sample type could be found in the other types of samples with similar or somewhat reduced, but still significant, fold-changes. Our results indicate that CIL LC-MS could overcome the sample matrix effect, thereby greatly broadening the scope of blood metabolomics; any blood samples properly collected in routine clinical settings, including those in biobanks originally used for other purposes, can potentially be used for discovery metabolomics.
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Affiliation(s)
- Deying Chen
- State Key Laboratory and Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou, Zhejiang 310003, China
| | - Wei Han
- Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
| | - Xiaoling Su
- State Key Laboratory and Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou, Zhejiang 310003, China
| | - Liang Li
- State Key Laboratory and Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou, Zhejiang 310003, China.,Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
| | - Lanjuan Li
- State Key Laboratory and Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou, Zhejiang 310003, China
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163
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Khamis MM, Adamko DJ, El-Aneed A. Development of a validated LC- MS/MS method for the quantification of 19 endogenous asthma/COPD potential urinary biomarkers. Anal Chim Acta 2017; 989:45-58. [PMID: 28915942 DOI: 10.1016/j.aca.2017.08.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 06/19/2017] [Accepted: 08/03/2017] [Indexed: 11/27/2022]
Abstract
Obstructive airways inflammatory diseases sometimes show overlapping symptoms that hinder their early and correct diagnosis. Current clinical tests are tedious and are of inadequate specificity in special population such as the elderly and children. Therefore, we are developing tandem mass spectrometric (MS/MS) methods for targeted analysis of urine biomarkers. Recently, proton-nuclear magnetic resonance (1H-NMR) analysis proposed 50 urinary metabolites as potential diagnostic biomarkers among asthma and chronic obstructive pulmonary disease (COPD) patients. Metabolites are divided into 3 groups based on chemical nature. For group 1 (amines and phenols, 19 urinary metabolites), we developed and validated a high performance liquid chromatographic (HPLC)-MS/MS method using differential isotope labeling (DIL) with dansyl chloride. Method development included the optimization of the derivatization reaction, the MS/MS conditions, and the chromatographic separation. Linearity varied from 2 to 4800 ng/mL and the use of 13C2-labeled derivatives allowed for the correction of matrix effects as well as the unambiguous confirmation of the identity of each metabolite in the presence of interfering isomers in urine. Despite the challenges associated with method validation, the method was fully validated as per the food and drug administration (FDA) and the European medicines agency (EMA) recommendations. Validation criteria included linearity, precision, accuracy, dilution integrity, selectivity, carryover, and stability. Challenges in selectivity experiments included the isotopic contributions of the analyte towards its internal standard (IS), that was addressed via the optimization of the IS concentration. In addition, incurred sample analysis was performed to ensure that results from patient samples are accurate and reliable. The method was robust and reproducible and is currently being applied in a cohort of asthma and COPD patient urine samples for biomarker discovery purposes.
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Affiliation(s)
- Mona M Khamis
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
| | - Darryl J Adamko
- Department of Pediatrics, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Anas El-Aneed
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada.
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164
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Hooton K, Li L. Nonocclusive Sweat Collection Combined with Chemical Isotope Labeling LC-MS for Human Sweat Metabolomics and Mapping the Sweat Metabolomes at Different Skin Locations. Anal Chem 2017; 89:7847-7851. [PMID: 28679039 DOI: 10.1021/acs.analchem.7b01988] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Human sweat is an excellent biofluid candidate for metabolomics due to its noninvasive sample collection and relatively simple matrix. We report a simple and inexpensive method for sweat collection over a defined period (e.g., 24 h) based on the use of a nonocclusive style sweat patch adhered to a skin. This method was combined with differential chemical isotope labeling (CIL) LC-MS for mapping the metabolome profiles of sweat samples collected from skins of the left forearm, lower back, and neck of 20 healthy volunteers. Three 24-h sweat samples were collected at three different days from each subject for examining day-to-day metabolome variations. A total of 342 LC-MS runs were carried out (two runs were discarded due to instrumental issue), resulting in the detection and relative quantification of 3140 sweat metabolites with 84 metabolites identified and 2716 metabolites mass-matched to metabolome databases. Multivariate and univariate analyses of the metabolome data revealed a location-dependence characteristic of the sweat metabolome, offering a possibility of mapping the sweat metabolic differences according to skin locations. Significant differences in male and female sweat metabolomes could be detected, demonstrating the possibility of using the sweat metabolome to reveal biological variations among different comparative groups. Thus, the combination of noninvasive sweat collection and CIL LC-MS is a robust analytical tool for sweat metabolomics with potential applications including daily monitoring of the sweat metabolome as health indicators, discovering sweat-based disease biomarkers, and metabolomic mapping of sweat collected from different areas of skin with and without injuries or diseases.
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Affiliation(s)
- Kevin Hooton
- Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
| | - Liang Li
- Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
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165
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Lu W, Su X, Klein MS, Lewis IA, Fiehn O, Rabinowitz JD. Metabolite Measurement: Pitfalls to Avoid and Practices to Follow. Annu Rev Biochem 2017; 86:277-304. [PMID: 28654323 DOI: 10.1146/annurev-biochem-061516-044952] [Citation(s) in RCA: 261] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Metabolites are the small biological molecules involved in energy conversion and biosynthesis. Studying metabolism is inherently challenging due to metabolites' reactivity, structural diversity, and broad concentration range. Herein, we review the common pitfalls encountered in metabolomics and provide concrete guidelines for obtaining accurate metabolite measurements, focusing on water-soluble primary metabolites. We show how seemingly straightforward sample preparation methods can introduce systematic errors (e.g., owing to interconversion among metabolites) and how proper selection of quenching solvent (e.g., acidic acetonitrile:methanol:water) can mitigate such problems. We discuss the specific strengths, pitfalls, and best practices for each common analytical platform: liquid chromatography-mass spectrometry (LC-MS), gas chromatography-mass spectrometry (GC-MS), nuclear magnetic resonance (NMR), and enzyme assays. Together this information provides a pragmatic knowledge base for carrying out biologically informative metabolite measurements.
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Affiliation(s)
- Wenyun Lu
- Lewis Sigler Institute for Integrative Genomics and Department of Chemistry, Princeton University, Princeton, New Jersey 08544;
| | - Xiaoyang Su
- Lewis Sigler Institute for Integrative Genomics and Department of Chemistry, Princeton University, Princeton, New Jersey 08544;
| | - Matthias S Klein
- Department of Biological Science, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Ian A Lewis
- Department of Biological Science, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Oliver Fiehn
- National Institutes of Health West Coast Metabolomics Center, University of California, Davis, California 95616.,Department of Biochemistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Joshua D Rabinowitz
- Lewis Sigler Institute for Integrative Genomics and Department of Chemistry, Princeton University, Princeton, New Jersey 08544;
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166
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HE YL, LUO YB, CHEN H, HOU HW, HU QY. Research Progress in Analysis of Small Molecule Metabolites in Bio-matrices by Stable Isotope Coded Derivatization Combining with Liquid Chromatography–tandem Mass Spectrometry. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1016/s1872-2040(17)61026-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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167
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Barbara G, Scaioli E, Barbaro MR, Biagi E, Laghi L, Cremon C, Marasco G, Colecchia A, Picone G, Salfi N, Capozzi F, Brigidi P, Festi D. Gut microbiota, metabolome and immune signatures in patients with uncomplicated diverticular disease. Gut 2017; 66:1252-1261. [PMID: 27618836 DOI: 10.1136/gutjnl-2016-312377] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/19/2016] [Accepted: 08/20/2016] [Indexed: 12/18/2022]
Abstract
OBJECTIVE The engagement of the gut microbiota in the development of symptoms and complications of diverticular disease has been frequently hypothesised. Our aim was to explore colonic immunocytes, gut microbiota and the metabolome in patients with diverticular disease in a descriptive, cross-sectional, pilot study. DESIGN Following colonoscopy with biopsy and questionnaire phenotyping, patients were classified into diverticulosis or symptomatic uncomplicated diverticular disease; asymptomatic subjects served as controls. Mucosal immunocytes, in the diverticular region and in unaffected sites, were quantified with immunohistochemistry. Mucosa and faecal microbiota were analysed by the phylogenetic platform high taxonomic fingerprint (HTF)-Microbi.Array, while the metabolome was assessed by 1H nuclear magnetic resonance. RESULTS Compared with controls, patients with diverticula, regardless of symptoms, had a >70% increase in colonic macrophages. Their faecal microbiota showed depletion of Clostridium cluster IV. Clostridium cluster IX, Fusobacterium and Lactobacillaceae were reduced in symptomatic versus asymptomatic patients. A negative correlation was found between macrophages and mucosal Clostridium cluster IV and Akkermansia. Urinary and faecal metabolome changes in diverticular disease involved the hippurate and kynurenine pathways. Six urinary molecules allowed to discriminate diverticular disease and control groups with >95% accuracy. CONCLUSIONS Patients with colonic diverticular disease show depletion of microbiota members with anti-inflammatory activity associated with mucosal macrophage infiltration. Metabolome profiles were linked to inflammatory pathways and gut neuromotor dysfunction and showed the ability to discriminate diverticular subgroups and controls. These data pave the way for further large-scale studies specifically aimed at identifying microbiota signatures with a potential diagnostic value in patients with diverticular disease.
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Affiliation(s)
- Giovanni Barbara
- Department of Medical and Surgical Sciences, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Eleonora Scaioli
- Department of Medical and Surgical Sciences, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Maria Raffaella Barbaro
- Department of Medical and Surgical Sciences, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Elena Biagi
- Department of Pharmacy and Biotechnology, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Luca Laghi
- Department of Agri-Food Sciences and Technologies, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Cesare Cremon
- Department of Medical and Surgical Sciences, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Giovanni Marasco
- Department of Medical and Surgical Sciences, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Antonio Colecchia
- Department of Medical and Surgical Sciences, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Gianfranco Picone
- Department of Agri-Food Sciences and Technologies, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Nunzio Salfi
- Pathology Unit, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Francesco Capozzi
- Department of Agri-Food Sciences and Technologies, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Patrizia Brigidi
- Department of Pharmacy and Biotechnology, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Davide Festi
- Department of Medical and Surgical Sciences, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
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168
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Schultz MC, Zhang J, Luo X, Savchenko O, Li L, Deyholos M, Chen J. Impact of Low-Intensity Pulsed Ultrasound on Transcript and Metabolite Abundance in Saccharomyces cerevisiae. J Proteome Res 2017; 16:2975-2982. [DOI: 10.1021/acs.jproteome.7b00273] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Michael C. Schultz
- Department
of Biochemistry, University of Alberta, Edmonton, Alberta T6G 2V4, Canada
| | - Jian Zhang
- InnTech Alberta, Vegreville, Alberta T6N 1E4, Canada
- Department
of Biology, University of British Columbia, Okanagan Campus, Kelowna, British Columbia V1V 1V7, Canada
| | - Xian Luo
- Department
of Chemistry, University of Alberta, Edmonton, Alberta T6G 2V4, Canada
| | - Oleksandra Savchenko
- Department
of Biomedical Engineering, University of Alberta, Edmonton, Alberta T6G 2V4, Canada
| | - Liang Li
- Department
of Chemistry, University of Alberta, Edmonton, Alberta T6G 2V4, Canada
| | - Michael Deyholos
- Department
of Biology, University of British Columbia, Okanagan Campus, Kelowna, British Columbia V1V 1V7, Canada
| | - Jie Chen
- Department
of Biomedical Engineering, University of Alberta, Edmonton, Alberta T6G 2V4, Canada
- Department
of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta T6G 2V4, Canada
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169
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Chen Y, Zhou Z, Yang W, Bi N, Xu J, He J, Zhang R, Wang L, Abliz Z. Development of a Data-Independent Targeted Metabolomics Method for Relative Quantification Using Liquid Chromatography Coupled with Tandem Mass Spectrometry. Anal Chem 2017; 89:6954-6962. [PMID: 28574715 DOI: 10.1021/acs.analchem.6b04727] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Quantitative metabolomics approaches can significantly improve the repeatability and reliability of metabolomics investigations but face critical technical challenges, owing to the vast number of unknown endogenous metabolites and the lack of authentic standards. The present study contributes to the development of a novel method known as "data-independent targeted quantitative metabolomics" (DITQM), which was used to investigate the label-free quantitative metabolomics of multiple known and unknown metabolites in biofluid samples. This approach initially involved the acquisition of MS/MS data for all metabolites in biosamples using a sequentially stepped targeted MS/MS (sst-MS/MS) method, in which multiple product ion scans were performed by selecting all ions in the targeted mass ranges as the precursor ions. Subsequently, scheduled multiple reaction monitoring (MRM) by LC-MS/MS of the metabolome was established for 1658 characteristic ion pairs of 1324 metabolites. For sensitive and accurate quantification of these metabolites, mixed calibration curves were generated using sequentially diluted standard reference plasma samples using established MRM methods. Relative concentrations of all metabolites in each sample were calculated without using individual authentic standards. To evaluate the reliability and applicability of this new method, the performance of DITQM was validated by comparison to absolute quantification of 12 acylcarnitines using authentic standards and traditional metabolomics analysis for lung cancer. The results proved that the DITQM protocol is more reliable and can significantly improve clustering effects and repeatability in biomarker discovery. In this study, we established a novel methodology to standardize and quantify large-scale metabolome, providing a new choice for metabolomics research and its clinical applications.
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Affiliation(s)
- Yanhua Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, P. R. China
| | - Zhi Zhou
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, P. R. China
| | - Wei Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, P. R. China.,Center for DMPK Research of Herbal Medicines, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing 100700, P. R. China
| | - Nan Bi
- Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100021, P. R. China
| | - Jing Xu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, P. R. China
| | - Jiuming He
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, P. R. China
| | - Ruiping Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, P. R. China
| | - Lvhua Wang
- Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100021, P. R. China
| | - Zeper Abliz
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, P. R. China.,Centre for Bioimaging & Systems Biology, Minzu University of China , Beijing 100081, P. R. China
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170
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Guo H, Jiao Y, Wang X, Lu T, Zhang Z, Xu F. Twins labeling-liquid chromatography/mass spectrometry based metabolomics for absolute quantification of tryptophan and its key metabolites. J Chromatogr A 2017; 1504:83-90. [DOI: 10.1016/j.chroma.2017.05.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 05/02/2017] [Accepted: 05/04/2017] [Indexed: 01/22/2023]
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171
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Zhou L, Yin P, Luo P, Tang L, Wang Z, Gao P, Piao H, Lu X, Xu G. High-throughput metabolic profiling based on small amount of hepatic cells. Electrophoresis 2017; 38:2296-2303. [DOI: 10.1002/elps.201600539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 04/17/2017] [Accepted: 04/18/2017] [Indexed: 12/27/2022]
Affiliation(s)
- Lina Zhou
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian P. R. China
| | - Peiyuan Yin
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian P. R. China
| | - Ping Luo
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian P. R. China
| | - Ling Tang
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian P. R. China
| | - Zhichao Wang
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian P. R. China
| | - Peng Gao
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian P. R. China
| | - Hailong Piao
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian P. R. China
| | - Xin Lu
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian P. R. China
| | - Guowang Xu
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian P. R. China
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172
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Zhao S, Dawe M, Guo K, Li L. Development of High-Performance Chemical Isotope Labeling LC-MS for Profiling the Carbonyl Submetabolome. Anal Chem 2017; 89:6758-6765. [PMID: 28505421 DOI: 10.1021/acs.analchem.7b01098] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Metabolites containing a carbonyl group represent several important classes of molecules including various forms of ketones and aldehydes such as steroids and sugars. We report a high-performance chemical isotope labeling (CIL) LC-MS method for profiling the carbonyl submetabolome with high coverage and high accuracy and precision of relative quantification. This method is based on the use of dansylhydrazine (DnsHz) labeling of carbonyl metabolites to change their chemical and physical properties to such an extent that the labeled metabolites can be efficiently separated by reversed phase LC and ionized by electrospray ionization MS. In the analysis of six standards representing different carbonyl classes, acetaldehyde could be ionized only after labeling and MS signals were significantly increased for other 5 standards with an enhancement factor ranging from ∼15-fold for androsterone to ∼940-fold for 2-butanone. Differential 12C- and 13C-DnsHz labeling was developed for quantifying metabolic differences in comparative samples where individual samples were separately labeled with 12C-labeling and spiked with a 13C-labeled pooled sample, followed by LC-MS analysis, peak pair picking, and peak intensity ratio measurement. In the replicate analysis of a 1:1 12C-/13C-labeled human urine mixture (n = 6), an average of 2030 ± 39 pairs per run were detected with 1737 pairs in common, indicating the possibility of detecting a large number of carbonyl metabolites as well as high reproducibility of peak pair detection. The average RSD of the peak pair ratios was 7.6%, and 95.6% of the pairs had a RSD value of less than 20%, demonstrating high precision for peak ratio measurement. In addition, the ratios of most peak pairs were close to the expected value of 1.0 (e.g., 95.5% of them had ratios of between 0.67 and 1.5), showing the high accuracy of the method. For metabolite identification, a library of DnsHz-labeled standards was constructed, including 78 carbonyl metabolites with each containing MS, retention time (RT), and MS/MS information. This library and an online search program for labeled carbonyl metabolite identification based on MS, RT, and MS/MS matches have been implemented in a freely available Website, www.mycompoundid.org . Using this library, out of the 1737 peak pairs detected in urine, 33 metabolites were positively identified. In addition, 1333 peak pairs could be matched to the metabolome databases with most of them belonging to the carbonyl metabolites. These results show that 12C-/13C-DnsHz labeling LC-MS is a useful tool for profiling the carbonyl submetabolome of complex samples with high coverage.
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Affiliation(s)
- Shuang Zhao
- Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
| | - Margot Dawe
- Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
| | - Kevin Guo
- Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
| | - Liang Li
- Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
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173
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Wang J, Zhou L, Lei H, Hao F, Liu X, Wang Y, Tang H. Simultaneous Quantification of Amino Metabolites in Multiple Metabolic Pathways Using Ultra-High Performance Liquid Chromatography with Tandem-mass Spectrometry. Sci Rep 2017; 7:1423. [PMID: 28469184 PMCID: PMC5431165 DOI: 10.1038/s41598-017-01435-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 03/28/2017] [Indexed: 01/09/2023] Open
Abstract
Metabolites containing amino groups cover multiple pathways and play important roles in redox homeostasis and biosyntheses of proteins, nucleotides and neurotransmitters. Here, we report a new method for simultaneous quantification of 124 such metabolites. This is achieved by derivatization-assisted sensitivity enhancement with 5-aminoisoquinolyl-N-hydroxysuccinimidyl carbamate (5-AIQC) followed with comprehensive analysis using ultra-high performance liquid chromatography and electrospray ionization tandem mass spectrometry (UHPLC-MS/MS). In an one-pot manner, this quantification method enables simultaneous coverage of 20 important metabolic pathways including protein biosynthesis/degradation, biosyntheses of catecholamines, arginine and glutathione, metabolisms of homocysteine, taurine-hypotaurine etc. Compared with the reported ones, this method is capable of simultaneously quantifying thiols, disulfides and other oxidation-prone analytes in a single run and suitable for quantifying aromatic amino metabolites. This method is also much more sensitive for all tested metabolites with LODs well below 50 fmol (at sub-fmol for most tested analytes) and shows good precision for retention time and quantitation with inter-day and intra-day relative standard deviations (RSDs) below 15% and good recovery from renal cancer tissue, rat urine and plasma. The method was further applied to quantify the amino metabolites in silkworm hemolymph from multiple developmental stages showing its applicability in metabolomics and perhaps some clinical chemistry studies.
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Affiliation(s)
- Jin Wang
- School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.,State Key Laboratory of Genetic Engineering, Zhongshan Hospital and School of Life Sciences, Fudan University, Shanghai International Centre for Molecular Phenomics, Collaborative Innovation Center for Genetics and Development, Shanghai, 200438, China.,CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Lihong Zhou
- School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.,CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Hehua Lei
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Fuhua Hao
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Xin Liu
- School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yulan Wang
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou, 310058, China
| | - Huiru Tang
- State Key Laboratory of Genetic Engineering, Zhongshan Hospital and School of Life Sciences, Fudan University, Shanghai International Centre for Molecular Phenomics, Collaborative Innovation Center for Genetics and Development, Shanghai, 200438, China.
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174
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Zhang S, Ji Z, Sun Z, Li M, Sheng C, Yue M, Yu Y, Chen G, You J. Stable isotope labeling assisted liquid chromatography–tandem mass spectrometry for the analysis of perfluorinated carboxylic acids in serum samples. Talanta 2017; 166:255-261. [DOI: 10.1016/j.talanta.2017.01.069] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 01/17/2017] [Accepted: 01/25/2017] [Indexed: 12/24/2022]
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175
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A method for the analysis of sugars in biological systems using reductive amination in combination with hydrophilic interaction chromatography and high resolution mass spectrometry. Talanta 2017; 166:75-80. [DOI: 10.1016/j.talanta.2017.01.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 01/08/2017] [Accepted: 01/12/2017] [Indexed: 12/16/2022]
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176
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A rapid, accurate and sensitive method with the new stable isotopic tags based on microwave-assisted dispersive liquid-liquid microextraction and its application to the determination of hydroxyl UV filters in environmental water samples. Talanta 2017; 167:242-252. [DOI: 10.1016/j.talanta.2017.02.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 02/06/2017] [Accepted: 02/10/2017] [Indexed: 12/17/2022]
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177
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Yao L, Shen H, Wang N, Tatlay J, Li L, Tan TW, Lee YK. Elevated acetyl-CoA by amino acid recycling fuels microalgal neutral lipid accumulation in exponential growth phase for biofuel production. PLANT BIOTECHNOLOGY JOURNAL 2017; 15:497-509. [PMID: 27734577 PMCID: PMC5362678 DOI: 10.1111/pbi.12648] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 09/29/2016] [Accepted: 10/05/2016] [Indexed: 05/16/2023]
Abstract
Microalgal neutral lipids [mainly in the form of triacylglycerols (TAGs)], feasible substrates for biofuel, are typically accumulated during the stationary growth phase. To make microalgal biofuels economically competitive with fossil fuels, generating strains that trigger TAG accumulation from the exponential growth phase is a promising biological approach. The regulatory mechanisms to trigger TAG accumulation from the exponential growth phase (TAEP) are important to be uncovered for advancing economic feasibility. Through the inhibition of pyruvate dehydrogenase kinase by sodium dichloroacetate, acetyl-CoA level increased, resulting in TAEP in microalga Dunaliella tertiolecta. We further reported refilling of acetyl-CoA pool through branched-chain amino acid catabolism contributed to an overall sixfold TAEP with marginal compromise (4%) on growth in a TAG-rich D. tertiolecta mutant from targeted screening. Herein, a three-step α loop-integrated metabolic model is introduced to shed lights on the neutral lipid regulatory mechanism. This article provides novel approaches to compress lipid production phase and heightens lipid productivity and photosynthetic carbon capture via enhancing acetyl-CoA level, which would optimize renewable microalgal biofuel to fulfil the demanding fuel market.
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Affiliation(s)
- Lina Yao
- Department of Microbiology and ImmunologyYong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
| | - Hui Shen
- Department of Microbiology and ImmunologyYong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
| | - Nan Wang
- Department of ChemistryUniversity of AlbertaEdmontonAlbertaCanada
| | - Jaspaul Tatlay
- Department of ChemistryUniversity of AlbertaEdmontonAlbertaCanada
| | - Liang Li
- Department of ChemistryUniversity of AlbertaEdmontonAlbertaCanada
| | - Tin Wee Tan
- Department of BiochemistryYong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
- National Supercomputing Centre (NSCC)SingaporeSingapore
| | - Yuan Kun Lee
- Department of Microbiology and ImmunologyYong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
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178
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Mung D, Li L. Development of Chemical Isotope Labeling LC-MS for Milk Metabolomics: Comprehensive and Quantitative Profiling of the Amine/Phenol Submetabolome. Anal Chem 2017; 89:4435-4443. [PMID: 28306241 DOI: 10.1021/acs.analchem.6b03737] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Milk is a complex sample containing a variety of proteins, lipids, and metabolites. Studying the milk metabolome represents an important application of metabolomics in the general area of nutritional research. However, comprehensive and quantitative analysis of milk metabolites is a challenging task due to the wide range of variations in chemical/physical properties and concentrations of these metabolites. We report an analytical workflow for in-depth profiling of the milk metabolome based on chemical isotope labeling (CIL) and liquid chromatography mass spectrometry (LC-MS) with a focus of using dansylation labeling to target the amine/phenol submetabolome. An optimal sample preparation method, including the use of methanol at a 3:1 ratio of solvent to milk for protein precipitation and dichloromethane for lipid removal, was developed to detect and quantify as many metabolites as possible. This workflow was found to be generally applicable to profile milk metabolomes of different species (cow, goat, and human) and types. Results from experimental replicate analysis (n = 5) of 1:1, 2:1, and 1:2 12C-/13C-labeled cow milk samples showed that 95.7%, 94.3%, and 93.2% of peak pairs, respectively, had ratio values within ±50% accuracy range and 90.7%, 92.6%, and 90.8% peak pairs had RSD values of less than 20%. In the metabolomic analysis of 36 samples from different categories of cow milk (brands, batches, and fat percentages) with experimental triplicates, a total of 7104 peak pairs or metabolites could be detected with an average of 4573 ± 505 (n = 108) pairs detected per LC-MS run. Among them, 3820 peak pairs were commonly detected in over 80% of the samples with 70 metabolites positively identified by mass and retention time matches to the dansyl standard library and 2988 pairs with their masses matched to the human metabolome libraries. This unprecedentedly high coverage of the amine/phenol submetabolome illustrates the complexity of the milk metabolome. Since milk and milk products are consumed in large quantities on a daily basis, the intake of these milk metabolites even at low concentrations can be cumulatively high. The high-coverage analysis of the milk metabolome using CIL LC-MS should be very useful in future research involving the study of the effects of these metabolites on human health. It should also be useful in the dairy industry in areas such as improving milk production, developing new processing technologies, developing improved nutritional products, quality control, and milk product authentication.
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Affiliation(s)
- Dorothea Mung
- Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
| | - Liang Li
- Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
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179
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Khamis MM, Adamko DJ, El-Aneed A. Mass spectrometric based approaches in urine metabolomics and biomarker discovery. MASS SPECTROMETRY REVIEWS 2017; 36:115-134. [PMID: 25881008 DOI: 10.1002/mas.21455] [Citation(s) in RCA: 196] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 10/05/2014] [Accepted: 10/05/2014] [Indexed: 05/25/2023]
Abstract
Urine metabolomics has recently emerged as a prominent field for the discovery of non-invasive biomarkers that can detect subtle metabolic discrepancies in response to a specific disease or therapeutic intervention. Urine, compared to other biofluids, is characterized by its ease of collection, richness in metabolites and its ability to reflect imbalances of all biochemical pathways within the body. Following urine collection for metabolomic analysis, samples must be immediately frozen to quench any biogenic and/or non-biogenic chemical reactions. According to the aim of the experiment; sample preparation can vary from simple procedures such as filtration to more specific extraction protocols such as liquid-liquid extraction. Due to the lack of comprehensive studies on urine metabolome stability, higher storage temperatures (i.e. 4°C) and repetitive freeze-thaw cycles should be avoided. To date, among all analytical techniques, mass spectrometry (MS) provides the best sensitivity, selectivity and identification capabilities to analyze the majority of the metabolite composition in the urine. Combined with the qualitative and quantitative capabilities of MS, and due to the continuous improvements in its related technologies (i.e. ultra high-performance liquid chromatography [UPLC] and hydrophilic interaction liquid chromatography [HILIC]), liquid chromatography (LC)-MS is unequivocally the most utilized and the most informative analytical tool employed in urine metabolomics. Furthermore, differential isotope tagging techniques has provided a solution to ion suppression from urine matrix thus allowing for quantitative analysis. In addition to LC-MS, other MS-based technologies have been utilized in urine metabolomics. These include direct injection (infusion)-MS, capillary electrophoresis-MS and gas chromatography-MS. In this article, the current progresses of different MS-based techniques in exploring the urine metabolome as well as the recent findings in providing potentially diagnostic urinary biomarkers are discussed. © 2015 Wiley Periodicals, Inc. Mass Spec Rev 36:115-134, 2017.
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Affiliation(s)
- Mona M Khamis
- College of Pharmacy and Nutrition, University of Saskatchewan, 107 Wiggins Rd, Saskatoon, SK, S7N 5E5, Canada
- Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Darryl J Adamko
- Department of Pediatrics, College of Medicine, University of Saskatchewan, 103 Hospital Drive, Saskatoon, SK, Canada
| | - Anas El-Aneed
- College of Pharmacy and Nutrition, University of Saskatchewan, 107 Wiggins Rd, Saskatoon, SK, S7N 5E5, Canada
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180
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Gray N, Zia R, King A, Patel VC, Wendon J, McPhail MJW, Coen M, Plumb RS, Wilson ID, Nicholson JK. High-Speed Quantitative UPLC-MS Analysis of Multiple Amines in Human Plasma and Serum via Precolumn Derivatization with 6-Aminoquinolyl-N-hydroxysuccinimidyl Carbamate: Application to Acetaminophen-Induced Liver Failure. Anal Chem 2017; 89:2478-2487. [PMID: 28194962 DOI: 10.1021/acs.analchem.6b04623] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A targeted reversed-phase gradient UPLC-MS/MS assay has been developed for the quantification /monitoring of 66 amino acids and amino-containing compounds in human plasma and serum using precolumn derivatization with 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate (AccQTag Ultra). Derivatization of the target amines required minimal sample preparation and resulted in analytes with excellent chromatographic and mass spectrometric detection properties. The resulting method, which requires only 10 μL of sample, provides the reproducible and robust separation of 66 analytes in 7.5 min, including baseline resolution of isomers such as leucine and isoleucine. The assay has been validated for the quantification of 33 amino compounds (predominantly amino acids) over a concentration range from 2 to 20 and 800 μM. Intra- and interday accuracy of between 0.05 and 15.6 and 0.78-13.7% and precision between 0.91 and 16.9% and 2.12-15.9% were obtained. A further 33 biogenic amines can be monitored in samples for relative changes in concentration rather than quantification. Application of the assay to samples derived from healthy controls and patients suffering from acetaminophen (APAP, paracetamol)-induced acute liver failure (ALF) showed significant differences in the amounts of aromatic and branched chain amino acids between the groups as well as a number of other analytes, including the novel observation of increased concentrations of sarcosine in ALF patients. The properties of the developed assay, including short analysis time, make it suitable for high-throughput targeted UPLC-ESI-MS/MS metabonomic analysis in clinical and epidemiological environments.
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Affiliation(s)
- Nicola Gray
- Biomolecular Medicine, Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London , South Kensington, London SW7 2AZ, United Kingdom
| | - Rabiya Zia
- Biomolecular Medicine, Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London , South Kensington, London SW7 2AZ, United Kingdom
| | - Adam King
- Biomolecular Medicine, Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London , South Kensington, London SW7 2AZ, United Kingdom
| | - Vishal C Patel
- Institute of Liver Studies and Transplantation, Kings College Hospital , Denmark Hill, London SE5 9RS, United Kingdom
| | - Julia Wendon
- Institute of Liver Studies and Transplantation, Kings College Hospital , Denmark Hill, London SE5 9RS, United Kingdom
| | - Mark J W McPhail
- Institute of Liver Studies and Transplantation, Kings College Hospital , Denmark Hill, London SE5 9RS, United Kingdom
| | - Muireann Coen
- Biomolecular Medicine, Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London , South Kensington, London SW7 2AZ, United Kingdom
| | - Robert S Plumb
- Biomolecular Medicine, Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London , South Kensington, London SW7 2AZ, United Kingdom
| | - Ian D Wilson
- Biomolecular Medicine, Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London , South Kensington, London SW7 2AZ, United Kingdom
| | - Jeremy K Nicholson
- Biomolecular Medicine, Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London , South Kensington, London SW7 2AZ, United Kingdom.,MRC-NIHR National Phenome Centre, Division of Computational and Systems Medicine, Department of Surgery and Cancer, IRDB Building, Imperial College London, Hammersmith Hospital , London W12 0NN, United Kingdom
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181
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Lei ENY, Yau MS, Yeung CC, Murphy MB, Wong KL, Lam MHW. Profiling of Selected Functional Metabolites in the Central Nervous System of Marine Medaka (Oryzias melastigma) for Environmental Neurotoxicological Assessments. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 72:269-280. [PMID: 27990605 DOI: 10.1007/s00244-016-0342-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 12/02/2016] [Indexed: 06/06/2023]
Abstract
The simultaneous profiling of 43 functional metabolites in the brain of the small model vertebrate organism, marine medaka (Oryzais melastigma), has been accomplished via dansyl chloride derivatization and LC-MS/MS quantification. This technique was applied to examine effects of 2,2',4,4'-tetrabromodiphenyl ether (BDE-47), one of the most abundant polybrominated diphenyl ether flame retardants in the natural environment, on the central nervous system (CNS) of vertebrates. The model teleosts were fed with bioencapsulated Artemia nauplii for up to 21 days. Multivariate statistical analysis has demonstrated that levels of numerous classical neurotransmitters and their metabolites in the CNS of the fish were perturbed even at the early phase of dietary exposure. Subsequent metabolic pathway analysis further implied potential impairment of the arginine and proline metabolism; glycine, serine and threonine metabolism; D-glutamine and D-glutamate metabolism; alanine, aspartate, and glutamate metabolism; valine, leucine, and isoleucine biosynthesis, and the cysteine and methionine metabolism in the brain of the test organism. Our results demonstrate that targeted profiling of functional metabolites in the CNS may shed light on how the various neurological pathways of vertebrates, including humans, are affected by toxicant/stress exposure.
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Affiliation(s)
- Elva Ngai-Yu Lei
- State Key Laboratory for Marine Pollution, Department of Biology & Chemistry, City University of Hong Kong, Tat Chee Ave., Kowloon, Hong Kong SAR, China
- State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong SAR, China
| | - Man-Shan Yau
- State Key Laboratory for Marine Pollution, Department of Biology & Chemistry, City University of Hong Kong, Tat Chee Ave., Kowloon, Hong Kong SAR, China
| | - Chi-Chung Yeung
- State Key Laboratory for Marine Pollution, Department of Biology & Chemistry, City University of Hong Kong, Tat Chee Ave., Kowloon, Hong Kong SAR, China
| | - Margaret B Murphy
- State Key Laboratory for Marine Pollution, Department of Biology & Chemistry, City University of Hong Kong, Tat Chee Ave., Kowloon, Hong Kong SAR, China
| | - Ka-Leung Wong
- State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong SAR, China
| | - Michael Hon-Wah Lam
- State Key Laboratory for Marine Pollution, Department of Biology & Chemistry, City University of Hong Kong, Tat Chee Ave., Kowloon, Hong Kong SAR, China.
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182
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Chen D, Su X, Wang N, Li Y, Yin H, Li L, Li L. Chemical Isotope Labeling LC-MS for Monitoring Disease Progression and Treatment in Animal Models: Plasma Metabolomics Study of Osteoarthritis Rat Model. Sci Rep 2017; 7:40543. [PMID: 28091618 PMCID: PMC5238386 DOI: 10.1038/srep40543] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 12/07/2016] [Indexed: 01/15/2023] Open
Abstract
We report a chemical isotope labeling (CIL) liquid chromatography mass spectrometry (LC-MS) method generally applicable for tracking metabolomic changes from samples collected in an animal model for studying disease development and treatment. A rat model of surgically induced osteoarthritis (OA) was used as an example to illustrate the workflow and technical performance. Experimental duplicate analyses of 234 plasma samples were carried out using dansylation labeling LC-MS targeting the amine/phenol submetabolome. These samples composed of 39 groups (6 rats per group) were collected at multiple time points with sham operation, OA control group, and OA rats with treatment, separately, using glucosamine/Celecoxib and three traditional Chinese medicines (Epimedii folium, Chuanxiong Rhizoma and Bushen-Huoxue). In total, 3893 metabolites could be detected and 2923 of them were consistently detected in more than 50% of the runs. This high-coverage submetabolome dataset could be used to track OA progression and treatment. Many differentiating metabolites were found and 11 metabolites including 2-aminoadipic acid, saccharopine and GABA were selected as potential biomarkers of OA progression and OA treatment. This study illustrates that CIL LC-MS is a very useful technique for monitoring incremental metabolomic changes with high coverage and accuracy for studying disease progression and treatment in animal models.
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Affiliation(s)
- Deying Chen
- State Key Laboratory and Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Xiaoling Su
- State Key Laboratory and Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Nan Wang
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Yunong Li
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Hua Yin
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Liang Li
- State Key Laboratory and Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Lanjuan Li
- State Key Laboratory and Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
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183
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Hao L, Johnson J, Lietz CB, Buchberger A, Frost D, Kao WJ, Li L. Mass Defect-Based N,N-Dimethyl Leucine Labels for Quantitative Proteomics and Amine Metabolomics of Pancreatic Cancer Cells. Anal Chem 2017; 89:1138-1146. [PMID: 28194987 DOI: 10.1021/acs.analchem.6b03482] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Mass spectrometry-based stable isotope labeling has become a key technology for protein and small-molecule analyses. We developed a multiplexed quantification method for simultaneous proteomics and amine metabolomics analyses via nano reversed-phase liquid chromatography-tandem mass spectrometry (nanoRPLC-MS/MS), called mass defect-based N,N-dimethyl leucine (mdDiLeu) labeling. The duplex mdDiLeu reagents were custom-synthesized with a mass difference of 20.5 mDa, arising from the subtle variation in nuclear binding energy between the two DiLeu isotopologues. Optimal MS resolving powers were determined to be 240K for labeled peptides and 120K for labeled metabolites on the Orbitrap Fusion Lumos instrument. The mdDiLeu labeling does not suffer from precursor interference and dynamic range compression, providing excellent accuracy for MS1-centric quantification. Quantitative information is only revealed at high MS resolution without increasing spectrum complexity and overlapping isotope distribution. Chromatographic performance of polar metabolites was dramatically improved by mdDiLeu labeling with modified hydrophobicity, enhanced ionization efficiency, and picomole levels of detection limits. Paralleled proteomics and amine metabolomics analyses using mdDiLeu were systematically evaluated and then applied to pancreatic cancer cells.
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Affiliation(s)
- Ling Hao
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Jillian Johnson
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Christopher B Lietz
- Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Amanda Buchberger
- Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Dustin Frost
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - W John Kao
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Lingjun Li
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States.,Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
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184
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Determination of parabens in domestic sewage by isotope-coded derivatization coupled with high performance liquid chromatography-tandem mass spectrometry. Microchem J 2017. [DOI: 10.1016/j.microc.2016.10.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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185
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Ye M, Zhang L, Xu P, Zhang R, Xu J, Wu X, Chen J, Zhou C, Yan X. Simultaneous analysis of ten low-molecular-mass organic acids in the tricarboxylic acid cycle and photorespiration pathway inThalassiosira pseudonanaat different growth stages. J Sep Sci 2016; 40:635-645. [DOI: 10.1002/jssc.201600852] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 10/30/2016] [Accepted: 11/09/2016] [Indexed: 01/18/2023]
Affiliation(s)
- Mengwei Ye
- Key Laboratory of Applied Marine Biotechnology; Ningbo University; Chinese Ministry of Education; Ningbo P.R. China
- Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture; Ningbo University; Ningbo P.R. China
| | - Lijing Zhang
- Zhejiang Pharmaceutical College; Ningbo P.R. China
| | - Panpan Xu
- Key Laboratory of Applied Marine Biotechnology; Ningbo University; Chinese Ministry of Education; Ningbo P.R. China
| | - Runtao Zhang
- Key Laboratory of Applied Marine Biotechnology; Ningbo University; Chinese Ministry of Education; Ningbo P.R. China
| | - Jilin Xu
- Key Laboratory of Applied Marine Biotechnology; Ningbo University; Chinese Ministry of Education; Ningbo P.R. China
| | - Xiaokai Wu
- Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture; Ningbo University; Ningbo P.R. China
| | - Juanjuan Chen
- Key Laboratory of Applied Marine Biotechnology; Ningbo University; Chinese Ministry of Education; Ningbo P.R. China
| | - Chengxu Zhou
- Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture; Ningbo University; Ningbo P.R. China
| | - Xiaojun Yan
- Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture; Ningbo University; Ningbo P.R. China
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186
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Wu Y, Streijger F, Wang Y, Lin G, Christie S, Mac-Thiong JM, Parent S, Bailey CS, Paquette S, Boyd MC, Ailon T, Street J, Fisher CG, Dvorak MF, Kwon BK, Li L. Parallel Metabolomic Profiling of Cerebrospinal Fluid and Serum for Identifying Biomarkers of Injury Severity after Acute Human Spinal Cord Injury. Sci Rep 2016; 6:38718. [PMID: 27966539 PMCID: PMC5155264 DOI: 10.1038/srep38718] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 11/10/2016] [Indexed: 12/28/2022] Open
Abstract
Suffering an acute spinal cord injury (SCI) can result in catastrophic physical and emotional loss. Efforts to translate novel therapies in acute clinical trials are impeded by the SCI community's singular dependence upon functional outcome measures. Therefore, a compelling rationale exists to establish neurochemical biomarkers for the objective classification of injury severity. In this study, CSF and serum samples were obtained at 3 time points (~24, 48, and 72 hours post-injury) from 30 acute SCI patients (10 AIS A, 12 AIS B, and 8 AIS C). A differential chemical isotope labeling liquid chromatography mass spectrometry (CIL LC-MS) with a universal metabolome standard (UMS) was applied to the metabolomic profiling of these samples. This method provided enhanced detection of the amine- and phenol-containing submetabolome. Metabolic pathway analysis revealed dysregulations in arginine-proline metabolism following SCI. Six CSF metabolites were identified as potential biomarkers of baseline injury severity, and good classification performance (AUC > 0.869) was achieved by using combinations of these metabolites in pair-wise comparisons of AIS A, B and C patients. Using the UMS strategy, the current data set can be expanded to a larger cohort for biomarker validation, as well as discovering biomarkers for predicting neurologic outcome.
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Affiliation(s)
- Yiman Wu
- Department of Chemistry, University of Alberta, Edmonton, AB, T6G2G2, Canada
| | - Femke Streijger
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Blusson Spinal Cord Centre, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Yining Wang
- Department of Computing Science, University of Alberta, Edmonton, AB, T6T 2E8, Canada
| | - Guohui Lin
- Department of Computing Science, University of Alberta, Edmonton, AB, T6T 2E8, Canada
| | - Sean Christie
- Division of Neurosurgery, Dalhousie University, Halifax Infirmary, 1796 Summer Street, Halifax, NS, B3H 3A7, Canada
| | - Jean-Marc Mac-Thiong
- Hôpital du Sacré-Coeur de Montréal, 5400 Boul Gouin O, Montréal, QC, H4J 1C5, Canada
| | - Stefan Parent
- Chu Sainte-Justine, Dept. of Surgery, Université de Montréal, PO Box 6128, Station Centre-ville, Montreal, QC, H3C 3J7, Canada
| | - Christopher S Bailey
- Division of Orthopaedic Surgery, Schulich Medicine &Dentistry, Victoria Hospital 800 Commissioners Road East, Room E4 120, London, ON, N6C 5W9, Canada
| | - Scott Paquette
- Division of Neurosurgery, University of British Columbia, Vancouver Spine Surgery Institute, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Michael C Boyd
- Division of Neurosurgery, University of British Columbia, Vancouver Spine Surgery Institute, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Tamir Ailon
- Division of Neurosurgery, University of British Columbia, Vancouver Spine Surgery Institute, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - John Street
- Department of Orthopaedics, University of British Columbia, Vancouver Spine Surgery Institute, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Charles G Fisher
- Department of Orthopaedics, University of British Columbia, Vancouver Spine Surgery Institute, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Marcel F Dvorak
- Department of Orthopaedics, University of British Columbia, Vancouver Spine Surgery Institute, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Brian K Kwon
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Blusson Spinal Cord Centre, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Liang Li
- Department of Chemistry, University of Alberta, Edmonton, AB, T6G2G2, Canada
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187
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Huan T, Xian JW, Leung WN, Li L, Chan CW. Cerebrospinal Fluid Metabolomics After Natural Product Treatment in an Experimental Model of Cerebral Ischemia. ACTA ACUST UNITED AC 2016; 20:670-680. [DOI: 10.1089/omi.2016.0112] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Tao Huan
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Jia Wen Xian
- School of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Wing Nang Leung
- School of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Liang Li
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Chun Wai Chan
- School of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
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188
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Nitric oxide participates in plant flowering repression by ascorbate. Sci Rep 2016; 6:35246. [PMID: 27731387 PMCID: PMC5059679 DOI: 10.1038/srep35246] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 09/22/2016] [Indexed: 12/20/2022] Open
Abstract
In Oncidium, redox homeostasis involved in flowering is mainly due to ascorbic acid (AsA). Here, we discovered that Oncidium floral repression is caused by an increase in AsA-mediated NO levels, which is directed by the enzymatic activities of nitrate reductase (NaR) and nitrite reducatase (NiR). Through Solexa transcriptomic analysis of two libraries, ‘pseudobulb with inflorescent bud’ (PIB) and ‘pseudobulb with axillary bud’ (PAB), we identified differentially expressed genes related to NO metabolism. Subsequently, we showed a significant reduction of NaR enzymatic activities and NO levels during bolting and blooming stage, suggesting that NO controlled the phase transition and flowering process. Applying AsA to Oncidium PLB (protocorm-like bodies) significantly elevated the NO content and enzyme activities. Application of sodium nitroprusside (-NO donor) on Arabidopsis vtc1 mutant caused late flowering and expression level of flowering-associated genes (CO, FT and LFY) were reduced, suggesting NO signaling is vital for flowering repression. Conversely, the flowering time of noa1, an Arabidopsis NO-deficient mutant, was not altered after treatment with L-galacturonate, a precursor of AsA, suggesting AsA is required for NO-biosynthesis involved in the NO-mediated flowering-repression pathway. Altogether, Oncidium bolting is tightly regulated by AsA-mediated NO level and downregulation of transcriptional levels of NO metabolism genes.
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189
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Zhao S, Luo X, Li L. Chemical Isotope Labeling LC-MS for High Coverage and Quantitative Profiling of the Hydroxyl Submetabolome in Metabolomics. Anal Chem 2016; 88:10617-10623. [DOI: 10.1021/acs.analchem.6b02967] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Shuang Zhao
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Xian Luo
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Liang Li
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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190
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Isotope-coded ESI-enhancing derivatization reagents for differential analysis, quantification and profiling of metabolites in biological samples by LC/MS: A review. J Pharm Biomed Anal 2016; 130:181-193. [DOI: 10.1016/j.jpba.2016.04.033] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 04/20/2016] [Accepted: 04/20/2016] [Indexed: 12/15/2022]
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191
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Development of chemical isotope labeling liquid chromatography mass spectrometry for silkworm hemolymph metabolomics. Anal Chim Acta 2016; 942:1-11. [DOI: 10.1016/j.aca.2016.06.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 05/15/2016] [Accepted: 06/01/2016] [Indexed: 11/24/2022]
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192
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Hermansson M, Hänninen S, Hokynar K, Somerharju P. The PNPLA-family phospholipases involved in glycerophospholipid homeostasis of HeLa cells. Biochim Biophys Acta Mol Cell Biol Lipids 2016; 1861:1058-1065. [DOI: 10.1016/j.bbalip.2016.06.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 05/25/2016] [Accepted: 06/10/2016] [Indexed: 12/17/2022]
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193
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Metabolite Analysis and Histology on the Exact Same Tissue: Comprehensive Metabolomic Profiling and Metabolic Classification of Prostate Cancer. Sci Rep 2016; 6:32272. [PMID: 27578275 PMCID: PMC5006072 DOI: 10.1038/srep32272] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 08/04/2016] [Indexed: 12/15/2022] Open
Abstract
We report a method of metabolomic profiling of intact tissue based on molecular preservation by extraction and fixation (mPREF) and high-performance chemical isotope labeling (CIL) liquid chromatography mass spectrometry (LC-MS). mPREF extracts metabolites by aqueous methanol from tissue biopsies without altering tissue architecture and thus conventional histology can be performed on the same tissue. In a proof-of-principle study, we applied dansylation LC-MS to profile the amine/phenol submetabolome of prostate needle biopsies from 25 patient samples derived from 16 subjects. 2900 metabolites were consistently detected in more than 50% of the samples. This unprecedented coverage allowed us to identify significant metabolites for differentiating tumor and normal tissues. The panel of significant metabolites was refined using 36 additional samples from 18 subjects. Receiver Operating Characteristic (ROC) analysis showed area-under-the-curve (AUC) of 0.896 with sensitivity of 84.6% and specificity of 83.3% using 7 metabolites. A blind study of 24 additional validation samples gave a specificity of 90.9% at the same sensitivity of 84.6%. The mPREF extraction can be readily implemented into the existing clinical workflow. Our method of combining mPREF with CIL LC-MS offers a powerful and convenient means of performing histopathology and discovering or detecting metabolite biomarkers in the same tissue biopsy.
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194
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Evaluation of the in vitro growth of urinary tract infection-causing gram-negative and gram-positive bacteria in a proposed synthetic human urine (SHU) medium. J Microbiol Methods 2016; 127:164-171. [DOI: 10.1016/j.mimet.2016.06.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 06/10/2016] [Accepted: 06/12/2016] [Indexed: 12/26/2022]
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195
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Sweet LE, Bisesi JH, Lei ENY, Lam MHW, Klaine SJ. The effects of bupropion on hybrid striped bass brain chemistry and predatory behavior. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2016; 35:2058-2065. [PMID: 26748934 DOI: 10.1002/etc.3350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 09/25/2015] [Accepted: 12/28/2015] [Indexed: 06/05/2023]
Abstract
Increased use of antidepressants has led to an increase in their detection in final treated wastewater effluents and receiving streams. Antidepressants are intended to modify human behavior by altering brain chemistry, and because of the high functional conservation of antidepressant target receptors in vertebrates, aquatic organisms may be at risk. The antidepressant bupropion is designed to alter brain norepinephrine and dopamine concentrations in humans. The objective of the present study was to understand if alteration of dopaminergic neurotransmitter concentrations in the hybrid striped bass (Morone saxatilis × Morone chrysops) brain by bupropion would alter this predator's ability to capture prey. The authors exposed hybrid striped bass to bupropion in a static system for 6 d, followed by a 6-d recovery period. During the present study's 12-d experiment, each hybrid striped bass was fed 4 unexposed fathead minnows every 3 d, and the time it took the hybrid striped bass to consume each of those 4 fathead minnows was quantified. After each feeding event, hybrid striped bass brains were harvested and analyzed for changes in several brain neurotransmitter concentrations, including serotonin, norepinephrine, dopamine, and many of their metabolites. Although bupropion altered the concentration of dopamine and many of the dopaminergic neurotransmitter metabolite concentrations in the brains on day 3 of the exposure, it did not alter the time to capture prey. This suggests that alteration of dopaminergic neurotransmitter concentrations in the hybrid striped bass brain does not alter a predator's ability to capture prey. Environ Toxicol Chem 2016;35:2058-2065. © 2016 SETAC.
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Affiliation(s)
- Lauren E Sweet
- Institute of Environmental Toxicology, Clemson University, Clemson, South Carolina, USA
| | - Joseph H Bisesi
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology, University of Florida, Gainesville, Florida, USA
| | - E N Y Lei
- State Key Laboratory for Marine Pollution, Department of Biology & Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Michael H W Lam
- State Key Laboratory for Marine Pollution, Department of Biology & Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Stephen J Klaine
- Institute of Environmental Toxicology, Clemson University, Clemson, South Carolina, USA
- Department of Biological Sciences, Clemson University, Clemson, South Carolina, USA
- Water Research Group (Ecotoxicology), Unit for Environmental Sciences and Management, North West University, Potchefstroom Campus, Potchefstroom, South Africa
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196
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Hooton K, Han W, Li L. Comprehensive and Quantitative Profiling of the Human Sweat Submetabolome Using High-Performance Chemical Isotope Labeling LC–MS. Anal Chem 2016; 88:7378-86. [DOI: 10.1021/acs.analchem.6b01930] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Kevin Hooton
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Wei Han
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Liang Li
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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197
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Black phosphorus-assisted laser desorption ionization mass spectrometry for the determination of low-molecular-weight compounds in biofluids. Anal Bioanal Chem 2016; 408:6223-33. [DOI: 10.1007/s00216-016-9737-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 06/15/2016] [Accepted: 06/21/2016] [Indexed: 10/21/2022]
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198
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He Y, Zhao XE, Zhu S, Wei N, Sun J, Zhou Y, Liu S, Liu Z, Chen G, Suo Y, You J. In situ derivatization-ultrasound-assisted dispersive liquid-liquid microextraction for the determination of neurotransmitters in Parkinson's rat brain microdialysates by ultra high performance liquid chromatography-tandem mass spectrometry. J Chromatogr A 2016; 1458:70-81. [PMID: 27372412 DOI: 10.1016/j.chroma.2016.06.059] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 05/29/2016] [Accepted: 06/17/2016] [Indexed: 02/06/2023]
Abstract
Simultaneous monitoring of several neurotransmitters (NTs) linked to Parkinson's disease (PD) has important scientific significance for PD related pathology, pharmacology and drug screening. A new simple, fast and sensitive analytical method, based on in situ derivatization-ultrasound-assisted dispersive liquid-liquid microextraction (in situ DUADLLME) in a single step, has been proposed for the quantitative determination of catecholamines and their biosynthesis precursors and metabolites in rat brain microdialysates. The method involved the rapid injection of the mixture of low toxic bromobenzene (extractant) and acetonitrile (dispersant), which containing commercial Lissamine rhodamine B sulfonyl chloride (LRSC) as derivatization reagent, into the aqueous phase of sample and buffer, and the following in situ DUADLLME procedure. After centrifugation, 50μL of the sedimented phase (bromobenzene) was directly injected for ultra high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) detection in multiple reaction monitoring (MRM) mode. This interesting combination brought the advantages of speediness, simpleness, low matrix effects and high sensitivity in an effective way. Parameters of in situ DUADLLME and UHPLC-MS/MS conditions were all optimized in detail. The optimum conditions of in situ DUADLLME were found to be 30μL of microdialysates, 150μL of acetonitrile containing LRSC, 50μL of bromobenzene and 800μL of NaHCO3-Na2CO3 buffer (pH 10.5) for 3.0min at 37°C. Under the optimized conditions, good linearity was observed with LODs (S/N>3) and LOQs (S/N>10) of LRSC derivatized-NTs in the range of 0.002-0.004 and 0.007-0.015 nmol/L, respectively. It also brought good precision (3.2-12.8%, peak area CVs%), accuracy (94.2-108.6%), recovery (94.5-105.5%) and stability (3.8-8.1%, peak area CVs%) results. Moreover, LRSC derivatization significantly improved chromatographic resolution and MS detection sensitivity of NTs when compared with the reported studies through the introduction of a permanent charged moiety from LRSC into NTs. Taken together, this in situ DUADLLME method was successfully applied for the simultaneous determination of six NTs in biological samples.
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Affiliation(s)
- Yongrui He
- Shandong Provincial Key Laboratory of Life-Organic Analysis & Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, PR China
| | - Xian-En Zhao
- Shandong Provincial Key Laboratory of Life-Organic Analysis & Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, PR China.
| | - Shuyun Zhu
- Shandong Provincial Key Laboratory of Life-Organic Analysis & Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, PR China
| | - Na Wei
- Shandong Provincial Key Laboratory of Life-Organic Analysis & Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, PR China
| | - Jing Sun
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources & Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810001, Qinghai, PR China
| | - Yubi Zhou
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources & Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810001, Qinghai, PR China
| | - Shu Liu
- National Center for Mass Spectrometry in Changchun & Key Laboratory for Traditional Chinese Medicine Chemistry and Mass Spectrometry of Jilin Province, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, PR China
| | - Zhiqiang Liu
- National Center for Mass Spectrometry in Changchun & Key Laboratory for Traditional Chinese Medicine Chemistry and Mass Spectrometry of Jilin Province, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, PR China.
| | - Guang Chen
- Shandong Provincial Key Laboratory of Life-Organic Analysis & Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, PR China
| | - Yourui Suo
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources & Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810001, Qinghai, PR China
| | - Jinmao You
- Shandong Provincial Key Laboratory of Life-Organic Analysis & Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, PR China; Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources & Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810001, Qinghai, PR China.
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199
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Wong JMT, Malec PA, Mabrouk OS, Ro J, Dus M, Kennedy RT. Benzoyl chloride derivatization with liquid chromatography-mass spectrometry for targeted metabolomics of neurochemicals in biological samples. J Chromatogr A 2016; 1446:78-90. [PMID: 27083258 DOI: 10.1016/j.chroma.2016.04.006] [Citation(s) in RCA: 169] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 03/28/2016] [Accepted: 04/02/2016] [Indexed: 01/01/2023]
Abstract
Widely targeted metabolomic assays are useful because they provide quantitative data on large groups of related compounds. We report a high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method that utilizes benzoyl chloride labeling for 70 neurologically relevant compounds, including catecholamines, indoleamines, amino acids, polyamines, trace amines, antioxidants, energy compounds, and their metabolites. The method includes neurotransmitters and metabolites found in both vertebrates and insects. This method was applied to analyze microdialysate from rats, human cerebrospinal fluid, human serum, fly tissue homogenate, and fly hemolymph, demonstrating its broad versatility for multiple physiological contexts and model systems. Limits of detection for most assayed compounds were below 10nM, relative standard deviations were below 10%, and carryover was less than 5% for 70 compounds separated in 20min, with a total analysis time of 33min. This broadly applicable method provides robust monitoring of multiple analytes, utilizes small sample sizes, and can be applied to diverse matrices. The assay will be of value for evaluating normal physiological changes in metabolism in neurochemical systems. The results demonstrate the utility of benzoyl chloride labeling with HPLC-MS/MS for widely targeted metabolomics assays.
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Affiliation(s)
- Jenny-Marie T Wong
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, United States
| | - Paige A Malec
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, United States
| | - Omar S Mabrouk
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, United States; Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, United States
| | - Jennifer Ro
- Department of Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI 48109, United States
| | - Monica Dus
- Deparment of Molecular, Cellular, Developmental Biology, University of Michigan, Ann Arbor, MI 48109, United States
| | - Robert T Kennedy
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, United States; Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, United States.
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200
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Luo X, Zhao S, Huan T, Sun D, Friis RMN, Schultz MC, Li L. High-Performance Chemical Isotope Labeling Liquid Chromatography-Mass Spectrometry for Profiling the Metabolomic Reprogramming Elicited by Ammonium Limitation in Yeast. J Proteome Res 2016; 15:1602-12. [PMID: 26947805 DOI: 10.1021/acs.jproteome.6b00070] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Information about how yeast metabolism is rewired in response to internal and external cues can inform the development of metabolic engineering strategies for food, fuel, and chemical production in this organism. We report a new metabolomics workflow for the characterization of such metabolic rewiring. The workflow combines efficient cell lysis without using chemicals that may interfere with downstream sample analysis and differential chemical isotope labeling liquid chromatography mass spectrometry (CIL LC-MS) for in-depth yeast metabolome profiling. Using (12)C- and (13)C-dansylation (Dns) labeling to analyze the amine/phenol submetabolome, we detected and quantified a total of 5719 peak pairs or metabolites. Among them, 120 metabolites were positively identified using a library of 275 Dns-metabolite standards, and 2980 metabolites were putatively identified based on accurate mass matches to metabolome databases. We also applied (12)C- and (13)C-dimethylaminophenacyl (DmPA) labeling to profile the carboxylic acid submetabolome and detected over 2286 peak pairs, from which 33 metabolites were positively identified using a library of 188 DmPA-metabolite standards, and 1595 metabolites were putatively identified. Using this workflow for metabolomic profiling of cells challenged by ammonium limitation revealed unexpected links between ammonium assimilation and pantothenate accumulation that might be amenable to engineering for better acetyl-CoA production in yeast. We anticipate that efforts to improve other schemes of metabolic engineering will benefit from application of this workflow to multiple cell types.
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Affiliation(s)
- Xian Luo
- Department of Chemistry and ‡Department of Biochemistry, University of Alberta , Edmonton, Alberta, T6G 2R3 Canada
| | - Shuang Zhao
- Department of Chemistry and ‡Department of Biochemistry, University of Alberta , Edmonton, Alberta, T6G 2R3 Canada
| | - Tao Huan
- Department of Chemistry and ‡Department of Biochemistry, University of Alberta , Edmonton, Alberta, T6G 2R3 Canada
| | - Difei Sun
- Department of Chemistry and ‡Department of Biochemistry, University of Alberta , Edmonton, Alberta, T6G 2R3 Canada
| | - R Magnus N Friis
- Department of Chemistry and ‡Department of Biochemistry, University of Alberta , Edmonton, Alberta, T6G 2R3 Canada
| | - Michael C Schultz
- Department of Chemistry and ‡Department of Biochemistry, University of Alberta , Edmonton, Alberta, T6G 2R3 Canada
| | - Liang Li
- Department of Chemistry and ‡Department of Biochemistry, University of Alberta , Edmonton, Alberta, T6G 2R3 Canada
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