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Zhang F, Fei Q, Huang X, Yu S, Qiu R, Guan L, Wu B, Shan M. LC-MS based strategy for chemical profiling and quantification of dispensing granules of Ginkgo biloba seeds. Heliyon 2024; 10:e36909. [PMID: 39286178 PMCID: PMC11402757 DOI: 10.1016/j.heliyon.2024.e36909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 08/22/2024] [Accepted: 08/23/2024] [Indexed: 09/19/2024] Open
Abstract
Ginkgo biloba seeds have been used as a traditional Chinese medicine for hundreds of years to treat diseases such as cervicitis, cough, asthma and other lung diseases. As a novel form, the dispensing granules (GSDG) of Ginkgo biloba seeds have been widely employed in clinic. However, its chemical profiling is not yet clear, which has restricted in-depth research in many fields. In this study, a high performance liquid chromatography coupled with quardrupole time-of-flight mass spectrometry method was used for the component characteration with the help of accurate molecular weights, fragmentation pathways, reported data, literatures and even some reference standards. Furthermore, in multiple-reaction monitoring mode, a high performance liquid chromatography coupled with quadrupole linear ion trap mass spectrometry method was developed and applied for simultaneous determination of the bioactive phytochemicals. As a result, a total of 56 components in GSDG were identified including 12 amino acids, 9 organic acids, 6 nucleosides and nucleobases, 6 flavonoids, 5 vitamins, 5 terpenoid lactones, 4 carbohydrates and 9 other compounds As for quantitative analysis, glutamic acid, asparatic acid, histidine, ginkgolide A, ginkgolide B, ginkgolide C, ginkgolide J, eucomic acid, N-(N-glucopyranosyl)-indoleacetylaspartate and N-(N-glucopyranosyl)-indoleacetylglutamate were selected as the analytes for quanlity marker of GSDG. After necessary validation tests, the developed quantitative method was successfully put into use for 10 batches of GSDG. In all batches, N-(N-glucopyranosyl)-indoleacetylaspartate was the richest phytochemical with the amount of 17.3-25.7 mg/g while ginkgolide J (0.0197-0.0335 mg/g) was determined to be the poorest. The study is supposed to exhibit a comprehensive chemical profiling and to provide some strong basis for preparation technology, quality control and even for action mechanism of GSDG, this novel form of Chinese medicine.
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Affiliation(s)
- Facheng Zhang
- Polifarma (Nanjing) Co., Ltd., Nanjing, 210038, PR China
| | - Qingqing Fei
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
| | - Xiaojun Huang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
| | - Sheng Yu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
| | - Rongli Qiu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
| | - Lan Guan
- Polifarma (Nanjing) Co., Ltd., Nanjing, 210038, PR China
| | - Baoxiang Wu
- Polifarma (Nanjing) Co., Ltd., Nanjing, 210038, PR China
| | - Mingqiu Shan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
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2
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Mohl DA, Lagies S, Zodel K, Zumkeller M, Peighambari A, Ganner A, Plattner DA, Neumann-Haefelin E, Adlesic M, Frew IJ, Kammerer B. Integrated Metabolomic and Transcriptomic Analysis of Modified Nucleosides for Biomarker Discovery in Clear Cell Renal Cell Carcinoma. Cells 2023; 12:cells12081102. [PMID: 37190010 DOI: 10.3390/cells12081102] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 03/30/2023] [Accepted: 04/05/2023] [Indexed: 05/17/2023] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) accounts for ~75% of kidney cancers. The biallelic inactivation of the von Hippel-Lindau tumor suppressor gene (VHL) is the truncal driver mutation of most cases of ccRCC. Cancer cells are metabolically reprogrammed and excrete modified nucleosides in larger amounts due to their increased RNA turnover. Modified nucleosides occur in RNAs and cannot be recycled by salvage pathways. Their potential as biomarkers has been demonstrated for breast or pancreatic cancer. To assess their suitability as biomarkers in ccRCC, we used an established murine ccRCC model, harboring Vhl, Trp53 and Rb1 (VPR) knockouts. Cell culture media of this ccRCC model and primary murine proximal tubular epithelial cells (PECs) were investigated by HPLC coupled to triple-quadrupole mass spectrometry using multiple-reaction monitoring. VPR cell lines were significantly distinguishable from PEC cell lines and excreted higher amounts of modified nucleosides such as pseudouridine, 5-methylcytidine or 2'-O-methylcytidine. The method's reliability was confirmed in serum-starved VPR cells. RNA-sequencing revealed the upregulation of specific enzymes responsible for the formation of those modified nucleosides in the ccRCC model. These enzymes included Nsun2, Nsun5, Pus1, Pus7, Naf1 and Fbl. In this study, we identified potential biomarkers for ccRCC for validation in clinical trials.
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Affiliation(s)
- Daniel A Mohl
- Core Competence Metabolomics, Hilde-Mangold-Haus, University of Freiburg, 79104 Freiburg, Germany
- Institute of Organic Chemistry, University of Freiburg, 79104 Freiburg, Germany
| | - Simon Lagies
- Core Competence Metabolomics, Hilde-Mangold-Haus, University of Freiburg, 79104 Freiburg, Germany
- Institute of Organic Chemistry, University of Freiburg, 79104 Freiburg, Germany
- Institute of Medical Microbiology and Hygiene, Faculty of Medicine, Medical Center-University of Freiburg, 79104 Freiburg, Germany
| | - Kyra Zodel
- Department of Internal Medicine I, Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, Medical Centre-University of Freiburg, 79106 Freiburg, Germany
| | - Matthias Zumkeller
- Department of Internal Medicine I, Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, Medical Centre-University of Freiburg, 79106 Freiburg, Germany
| | - Asin Peighambari
- Department of Internal Medicine I, Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, Medical Centre-University of Freiburg, 79106 Freiburg, Germany
| | - Athina Ganner
- Renal Division, Department of Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
| | - Dietmar A Plattner
- Institute of Organic Chemistry, University of Freiburg, 79104 Freiburg, Germany
| | - Elke Neumann-Haefelin
- Renal Division, Department of Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
| | - Mojca Adlesic
- Department of Internal Medicine I, Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, Medical Centre-University of Freiburg, 79106 Freiburg, Germany
| | - Ian J Frew
- Department of Internal Medicine I, Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, Medical Centre-University of Freiburg, 79106 Freiburg, Germany
- German Cancer Consortium (DKTK), Partner Site Freiburg, and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Signalling Research Centre BIOSS, University of Freiburg, 79104 Freiburg, Germany
- Comprehensive Cancer Center Freiburg (CCCF), Faculty of Medicine and Medical Center-University of Freiburg, 79106 Freiburg, Germany
| | - Bernd Kammerer
- Core Competence Metabolomics, Hilde-Mangold-Haus, University of Freiburg, 79104 Freiburg, Germany
- Institute of Organic Chemistry, University of Freiburg, 79104 Freiburg, Germany
- Signalling Research Centre BIOSS, University of Freiburg, 79104 Freiburg, Germany
- Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, 79104 Freiburg, Germany
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3
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Zhou J, Yu S, Wang B, Wei X, Zhang L, Shan M. Chemical profiling and quantification of Yihuang decoction by high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry and a diode array detector. J Pharm Biomed Anal 2023; 224:115199. [PMID: 36527856 DOI: 10.1016/j.jpba.2022.115199] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/04/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022]
Abstract
Yihuang decoction (YHD) is one of the most famous formulas in tradition Chinese medicine (TCM) and has been clinically used for treatment of vaginitis, pelvic inflammation and other gynecological diseases for hundreds of years. However, its chemical composition remains unclear. In this study, high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF-MS) was employed for its chemical profiling investigation. As a result, 90 components were chemically defined, including 23 alkaloids, 14 organic acids, 3 phenylethanoid glycosides, 4 iridoid glycosides, 5 terpenoid lactones, 10 flavonoids, 8 nucleobases and nucleosides, 12 amino acids, and 11 other compounds. In addition, 8 representative compounds (acteoside, allantoin, berberine, 4-O-feruloylquinic acid, 5-O-feruloylquinic acid, gallic acid, geniposidic acid, and phellodendrine) were simultaneously determined in 10 batches of YHD samples by HPLC with a diode array detector (HPLC-DAD). For all the analytes, their calibration curves showed good linearity (R2 >0.9990) within the test ranges. RSDs of precision, repeatability and stability test were all below 3.50%. The overall recoveries ranged from 93.63% to 105.02%, with RSDs less than 3.50%. This study is supposed to exhibit a comprehensive chemical profiling of YHD and to provide some strong basis for quality control and even for action mechanism of this ancient classical prescription.
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Affiliation(s)
- Jinxin Zhou
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Sheng Yu
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Bingqian Wang
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Xing Wei
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Li Zhang
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Mingqiu Shan
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China; School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, PR China.
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4
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Photoelectrochemical immunosensor for methylated RNA detection based on WS 2 and poly(U) polymerase-triggered signal amplification. Mikrochim Acta 2020; 187:596. [PMID: 33033870 DOI: 10.1007/s00604-020-04572-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 09/25/2020] [Indexed: 10/23/2022]
Abstract
A novel photoelectrochemical immunosensor has been constructed for the determination of methylated RNA. MoS2 nanosheets with large specific area were employed as photoactive material, gold nanoparticles were used as signal amplification unit and immobilization matrix of 4-mercaptophenylboronic acid, anti-m6A antibody was adopted as methylated RNA recognition reagent, and poly(U) polymerase-mediated RNA chain extension and Ru(NH3)63+ were used as assisted signal amplification unit. With the sensitization effect of Ru(NH3)63+, the photoactivity of WS2 nanosheets was improved greatly, which also improved the sensitivity. Using visible-light excitation and ascorbic acid as electron donor, the sensitive determination of methylated RNA was achieved by monitoring the photocurrent change with different concentrations of methylated RNA. This photoelectrochemical immunosensor has a wide linear relationship with methylated RNA concentration from 0.05 to 35 nM under optimal experimental conditions. The low detection limit of 14.5 pM was realized based on 3σ criterion. In addition to the good selectivity, this sensor also presents high reproducibility with a relative standard deviation of 1.4% for the photocurrent of seven electrodes. The applicability of the developed method was also investigated by detecting the level of methylated RNA in corn seedling leaves with and without sulfadiazine treatment. Graphical abstract A novel photoelectrochemical immunosensor was developed for methylated RNA detection using the photoactive material of MoS2 and poly(U) polymerase-mediated RNA chain extension.
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5
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Abstract
The discovery and analysis of modifications on proteins and nucleic acids has provided functional information that has rapidly accelerated the field of epigenetics. While protein post-translational modifications (PTMs), especially on histones, have been highlighted as critical components of epigenetics, the post-transcriptional modification of RNA has been a subject of more recently emergent interest. Multiple RNA modifications have been known to be present in tRNA and rRNA since the 1960s, but the exploration of mRNA, small RNA, and inducible tRNA modifications remains nascent. Sequencing-based methods have been essential to the field by creating the first epitranscriptome maps of m6A, m5C, hm5C, pseudouridine, and inosine; however, these methods possess significant limitations. Here, we discuss the past, present, and future of the application of mass spectrometry (MS) to the study of RNA modifications.
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MESH Headings
- Animals
- Humans
- Mass Spectrometry
- Molecular Structure
- Nucleosides
- Nucleotides
- Protein Processing, Post-Translational
- RNA/chemistry
- RNA/genetics
- RNA/metabolism
- RNA, Messenger/chemistry
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- RNA, Ribosomal/chemistry
- RNA, Ribosomal/genetics
- RNA, Ribosomal/metabolism
- RNA, Transfer/chemistry
- RNA, Transfer/genetics
- RNA, Transfer/metabolism
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Affiliation(s)
- Richard Lauman
- Biochemistry and Molecular Biophysics Graduate Group, Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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6
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Joo YH, Nam MH, Chung N, Lee YK. UPLC-QTOF-MS/MS screening and identification of bioactive compounds in fresh, aged, and browned Magnolia denudata flower extracts. Food Res Int 2020; 133:109192. [DOI: 10.1016/j.foodres.2020.109192] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 09/30/2019] [Accepted: 03/17/2020] [Indexed: 12/12/2022]
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7
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Fu Y, Shan M, Hu M, Jiang Y, Chen P, Chi Y, Yu S, Zhang L, Wu Q, Zhang F, Mao Z. Chemical profiling of Banxia-Baizhu-Tianma decoction by ultra-fast liquid chromatography with tandem mass spectrometry. J Pharm Biomed Anal 2019; 174:595-607. [PMID: 31261041 DOI: 10.1016/j.jpba.2019.06.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 06/09/2019] [Accepted: 06/22/2019] [Indexed: 12/21/2022]
Abstract
Banxia-Baizhu-Tianma decoction (BBTD) is a compound formulae of traditional Chinese medicine (TCM), which has been clinically used for treatments of neural vertigo, hypertension and epilepsy with a long history. In this study, with an ultra-fast liquid chromatography coupled with quadrupole time of flight mass spectrometry (UFLC-Q-TOF-MS) method, a total of 88 components in BBTD were identified by the accurate masses and fragmentation pathways including 19 flavonoids, 8 lactones, 12 triterpenoids, 10 phenolics, 14 amino acids, 13 nucleobases and nucleosides, 7 organic acids, and 5 other compounds. In addition, under the same chromatographic conditions, we developed an ultra-fast liquid chromatography coupled with quadrupole linear ion trap mass spectrometry (UFLC-Q-TRAP-MS) method to simultaneously quantify 20 bioactive components in multiple-reaction monitoring (MRM) mode. The assay method was validated in terms of linearity, precision, repeatability, recovery and was successfully applied for determination of 12 batches of BBTD. We hope that this study work would help to reveal the chemical profiling and provide a valuable and reliable approach for quality evaluation and even efficacy material basis study of BBTD.
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Affiliation(s)
- Yuanyuan Fu
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Mingqiu Shan
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China.
| | - Minhui Hu
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Yulan Jiang
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Peidong Chen
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Yumei Chi
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Sheng Yu
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Li Zhang
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China.
| | - Qinan Wu
- Jiangsu Key Laboratory for High Technology Research of TCM Formula, Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Facheng Zhang
- Nanjing Checker Pharmacy Sci. & Tech. Co., Ltd., Nanjing, PR China
| | - Zhiying Mao
- Nanjing Checker Pharmacy Sci. & Tech. Co., Ltd., Nanjing, PR China
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8
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Lagies S, Schlimpert M, Braun LM, Kather M, Plagge J, Erbes T, Wittel UA, Kammerer B. Unraveling altered RNA metabolism in pancreatic cancer cells by liquid-chromatography coupling to ion mobility mass spectrometry. Anal Bioanal Chem 2019; 411:6319-6328. [PMID: 31037374 DOI: 10.1007/s00216-019-01814-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/27/2019] [Accepted: 03/27/2019] [Indexed: 12/12/2022]
Abstract
Ion mobility coupling to mass spectrometry facilitates enhanced identification certitude. Further coupling to liquid chromatography results in multi-dimensional analytical methods, especially suitable for complex matrices with structurally similar compounds. Modified nucleosides represent a large group of very similar members linked to aberrant proliferation. Besides basal production under physiological conditions, they are increasingly excreted by transformed cells and subsequently discussed as putative biomarkers for various cancer types. Here, we report a method for modified nucleosides covering 37 species. We determined collisional cross-sections with high reproducibility from pure analytical standards. For sample purification, we applied an optimized phenylboronic acid solid-phase extraction on media obtained from four different pancreatic cancer cell lines. Our analysis could discriminate different subtypes of pancreatic cancer cell lines. Importantly, they could clearly be separated from a pancreatic control cell line as well as blank medium. m1A, m27G, and Asm were the most important features discriminating cancer cell lines derived from well-differentiated and poorly differentiated cancers. Eventually, we suggest the analytical method reported here for future tumor-marker identification studies. Graphical abstract.
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Affiliation(s)
- Simon Lagies
- Center for Biological Systems Analysis ZBSA, Albert-Ludwigs-University Freiburg, Habsburgerstr. 49, 79104, Freiburg, Germany.,Institute of Biology II, Albert-Ludwigs-University Freiburg, Schänzlestr. 1, 79104, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine, Albert-Ludwigs-University Freiburg, Albertstr. 19A, 79104, Freiburg, Germany
| | - Manuel Schlimpert
- Center for Biological Systems Analysis ZBSA, Albert-Ludwigs-University Freiburg, Habsburgerstr. 49, 79104, Freiburg, Germany.,Institute of Biology II, Albert-Ludwigs-University Freiburg, Schänzlestr. 1, 79104, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine, Albert-Ludwigs-University Freiburg, Albertstr. 19A, 79104, Freiburg, Germany
| | - Lukas M Braun
- Center for Biological Systems Analysis ZBSA, Albert-Ludwigs-University Freiburg, Habsburgerstr. 49, 79104, Freiburg, Germany.,Department of General- and Visceral Surgery, University of Freiburg Medical Center, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Michel Kather
- Center for Biological Systems Analysis ZBSA, Albert-Ludwigs-University Freiburg, Habsburgerstr. 49, 79104, Freiburg, Germany.,Faculty of Chemistry and Pharmacy, Albert-Ludwigs-University Freiburg, Hebelstr. 27, 79104, Freiburg, Germany.,Hermann Staudinger Graduate School, University of Freiburg, Hebelstr. 27, 79104, Freiburg, Germany
| | - Johannes Plagge
- Center for Biological Systems Analysis ZBSA, Albert-Ludwigs-University Freiburg, Habsburgerstr. 49, 79104, Freiburg, Germany
| | - Thalia Erbes
- Department of Gynecology and Obstetrics, Faculty of Medicine and Medical Center, University of Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Uwe A Wittel
- Department of General- and Visceral Surgery, University of Freiburg Medical Center, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Bernd Kammerer
- Center for Biological Systems Analysis ZBSA, Albert-Ludwigs-University Freiburg, Habsburgerstr. 49, 79104, Freiburg, Germany. .,BIOSS Centre for Biological Signalling Studies, University of Freiburg, Schänzlestr. 16, 79104, Freiburg, Germany.
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9
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Li Y, Wang Y, Wu P. 5'-Methylthioadenosine and Cancer: old molecules, new understanding. J Cancer 2019; 10:927-936. [PMID: 30854099 PMCID: PMC6400808 DOI: 10.7150/jca.27160] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 12/17/2018] [Indexed: 12/19/2022] Open
Abstract
While the metabolic changes in cancer tissues were first observed by Warburg Otto almost a century ago, altered metabolism has recently returned as a focus of cancer research. 5'-Methylthioadenosine (MTA) is a naturally occurring sulfur-containing nucleoside found in numerous species. While MTA was first isolated several decades ago, a lack of sensitive and specific analytical methodologies designed for its direct quantification has hampered the study of its physiological and pathophysiological features. Many studies indicate that MTA suppresses tumors by inhibiting tumor cell proliferation, invasion, and the induction of apoptosis while controlling the inflammatory micro-environments of tumor tissue. In this review, we assessed the effects of MTA and of related materials on the growth and functions of normal and malignant cells.
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Affiliation(s)
- Yaofeng Li
- Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yubo Wang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Ping Wu
- Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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10
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Patejko M, Struck-Lewicka W, Siluk D, Waszczuk-Jankowska M, Markuszewski MJ. Urinary Nucleosides and Deoxynucleosides. Adv Clin Chem 2018; 83:1-51. [PMID: 29304899 DOI: 10.1016/bs.acc.2017.10.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Urinary nucleosides and deoxynucleosides are mainly known as metabolites of RNA turnover and oxidative damage of DNA. For several decades these metabolites have been examined for their potential use in disease states including cancer and oxidative stress. Subsequent improvements in analytical sensitivity and specificity have provided a reliable means to measure these unique molecules to better assess their relationship to physiologic and pathophysiologic conditions. In fact, some are currently used as antiviral and antitumor agents. In this review we provide insight into their molecular characteristics, highlight current separation techniques and detection methods, and explore potential clinical usefulness.
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11
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Analysis of mononucleotides by tandem mass spectrometry: investigation of fragmentation pathways for phosphate- and ribose-modified nucleotide analogues. Sci Rep 2017; 7:8931. [PMID: 28827558 PMCID: PMC5567097 DOI: 10.1038/s41598-017-09416-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 07/24/2017] [Indexed: 12/23/2022] Open
Abstract
Synthetic nucleotide and nucleic acid analogues are useful research tools and modern therapeutics. Hence, methods for the rapid and unambiguous identification of mononucleotides derived from organic syntheses or biological materials are of broad interest. Here, we analysed over 150 mononucleotides (mostly nucleoside 5′-mono-, 5′-di-, and 5′-triphosphates) and their structurally related nucleobase-, phosphate-, and ribose-modified analogues by electrospray tandem mass spectrometry (ESI/MS/MS), identifying characteristic fragmentation ions that may be helpful in structure determination. While positive-ion mode yielded fragments derived mainly from nucleobases, negative-ion mode provided insight into the structures of phosphoryl and phosphoribosyl moieties, enabling the determination of structural features such as the number of phosphate groups and the presence of ribose or phosphate substitutions. Based on these data, we proposed fragmentation pathways that were confirmed by experiments with [18O]-isotopologues. We demonstrated the utility of ESI(−)/MS/MS in the analysis of structurally related compounds by analysing isomeric and isobaric nucleotides and applying ESI(−)/MS/MS to rapid identification of nucleotide synthesis products. We formulated general rules regarding nucleotide structure–fragmentation pattern relationships and indicating characteristic fragmentation ions for the interpretation of ESI(−)/MS/MS spectra of nucleotides and their analogues. The ESI(−)/MS/MS spectra of all nucleotides are available in an on-line database, msTide, at www.msTide-db.com.
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12
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Wan L, Zhu H, Guan Y, Huang G. Nanocoating cellulose paper based microextraction combined with nanospray mass spectrometry for rapid and facile quantitation of ribonucleosides in human urine. Talanta 2017; 169:209-215. [PMID: 28411814 DOI: 10.1016/j.talanta.2017.03.085] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 03/14/2017] [Accepted: 03/26/2017] [Indexed: 10/19/2022]
Abstract
A rapid and facile analytical method for quantification of ribonucleosides in human urine was developed by the combination of nanocoating cellulose paper based microextraction and nanoelectrospray ionization-tandem mass spectrometry (nESI-MS/MS). Cellulose paper used for microextraction was modified by nano-precision deposition of uniform ultrathin zirconia gel film using a sol-gel process. Due to the large surface area of the cellulose paper and the strong affinity between zirconia and the cis-diol compounds, the target analytes were selectively extracted from the complex matrix. Thus, the detection sensitivity was greatly improved. Typically, the nanocoating cellulose paper was immersed into the diluted urine for selective extraction of target analytes, then the extracted analytes were subjected to nESI-MS/MS detection. The whole analytical procedure could be completed within 10min. The method was evaluated by the determination of ribonucleosides (adenosine, cytidine, uridine, guanosine) in urine sample. The signal intensities of the ribonuclesides extracted by the nanocoating cellulose paper were greatly enhanced by 136-459-folds compared with the one of the unmodified cellulose paper based microextraction. The limits of detection (LODs) and the limits of quantification (LOQs) of the four ribonucleosides were in the range of 0.0136-1.258μgL-1 and 0.0454-4.194μgL-1, respectively. The recoveries of the target nucleosides from spiked human urine were in the range of 75.64-103.49% with the relative standard deviations (RSDs) less than 9.36%. The results demonstrate the potential of the proposed method for rapid and facile determination of endogenous ribonucleosides in urine sample.
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Affiliation(s)
- Lingzhong Wan
- Department of Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China (USTC), Hefei 230026, China
| | - Haijing Zhu
- Department of Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China (USTC), Hefei 230026, China
| | - Yafeng Guan
- Department of Instrumentation and Analytical Chemistry, Key Laboratory of Separation Science for Analytical Chemistry of CAS, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Guangming Huang
- Department of Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China (USTC), Hefei 230026, China.
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13
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Metal oxide-based dispersive solid-phase extraction coupled with mass spectrometry analysis for determination of ribose conjugates in human follicular fluid. Talanta 2017; 167:506-512. [PMID: 28340751 DOI: 10.1016/j.talanta.2017.02.062] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 02/22/2017] [Accepted: 02/26/2017] [Indexed: 01/06/2023]
Abstract
Polycystic ovary syndrome (PCOS) is the most common cause of anovulatory infertility. The pathogenesis of PCOS remains unclear and early diagnosis of PCOS is challenging. Follicular fluid provides a unique window in the critical processes during oocyte and follicular maturation, and the metabolic level of follicular fluid has important impact on the developmental potential of oocytes and subsequent embryos. Previous studies demonstrated some modified ribonucleosides in biological fluids were diseases related metabolites. In this respect, analysis of endogenous modified ribonucleosides in follicular fluids will facilitate the investigation of follicular development. Here, we developed a strategy for determination of ribose conjugates from follicular fluid using metal oxide-based dispersive solid-phase extraction (DSPE) coupled with liquid chromatography-multiple reaction monitoring-mass spectrometry analysis (DSPE-LC-MRM-MS/MS). Cerium dioxide (CeO2) was used to selectively recognize and capture cis-diol containing ribose conjugates from complex biological samples under basic environment. The trapped ribose conjugates were then easily released under acidic environment. The results showed that 50 potential ribose conjugates were detected in follicular fluid by the developed DSPE-LC-MRM-MS/MS method. We then further investigated the contents change of the detected ribose conjugates in follicular fluid from PCOS patients. The results indicated that the follicular fluid from healthy controls and PCOS patients can be clearly differentiated with the partial least squares-discriminate analysis (PLS-DA) based on the detected ribose conjugates. In addition, the contents of 8 ribose conjugates were significantly different between PCOS patients and healthy controls, which could potentially serve as the indicator of PCOS.
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14
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Detection of 1,N2-propano-2′-deoxyguanosine in human urine by stable isotope dilution UHPLC–MS/MS analysis. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1023-1024:68-71. [DOI: 10.1016/j.jchromb.2016.04.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 04/15/2016] [Accepted: 04/16/2016] [Indexed: 11/18/2022]
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15
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Li D, Chen Y, Liu Z. Boronate affinity materials for separation and molecular recognition: structure, properties and applications. Chem Soc Rev 2015; 44:8097-123. [PMID: 26377373 DOI: 10.1039/c5cs00013k] [Citation(s) in RCA: 399] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Boronate affinity materials, as unique sorbents, have emerged as important media for the selective separation and molecular recognition of cis-diol-containing compounds. With the introduction of boronic acid functionality, boronate affinity materials exhibit several significant advantages, including broad-spectrum selectivity, reversible covalent binding, pH-controlled capture/release, fast association/desorption kinetics, and good compatibility with mass spectrometry. Because cis-diol-containing biomolecules, including nucleosides, saccharides, glycans, glycoproteins and so on, are the important targets in current research frontiers such as metabolomics, glycomics and proteomics, boronate affinity materials have gained rapid development and found increasing applications in the last decade. In this review, we critically survey recent advances in boronate affinity materials. We focus on fundamental considerations as well as important progress and new boronate affinity materials reported in the last decade. We particularly discuss on the effects of the structure of boronate ligands and supporting materials on the properties of boronate affinity materials, such as binding pH, affinity, selectivity, binding capacity, tolerance for interference and so on. A variety of promising applications, including affinity separation, proteomics, metabolomics, disease diagnostics and aptamer selection, are introduced with main emphasis on how boronate affinity materials can solve the issues in the applications and what merits boronate affinity materials can provide.
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Affiliation(s)
- Daojin Li
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China.
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16
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Exometabolom analysis of breast cancer cell lines: Metabolic signature. Sci Rep 2015; 5:13374. [PMID: 26293811 PMCID: PMC4544000 DOI: 10.1038/srep13374] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 07/24/2015] [Indexed: 12/26/2022] Open
Abstract
Cancer cells show characteristic effects on cellular turnover and DNA/RNA modifications leading to elevated levels of excreted modified nucleosides. We investigated the molecular signature of different subtypes of breast cancer cell lines and the breast epithelial cell line MCF-10A. Prepurification of cell culture supernatants was performed by cis-diol specific affinity chromatography using boronate-derivatized polyacrylamide gel. Samples were analyzed by application of reversed phase chromatography coupled to a triple quadrupole mass spectrometer. Collectively, we determined 23 compounds from RNA metabolism, two from purine metabolism, five from polyamine/methionine cycle, one from histidine metabolism and two from nicotinate and nicotinamide metabolism. We observed major differences of metabolite excretion pattern between the breast cancer cell lines and MCF-10A, just as well as between the different breast cancer cell lines themselves. Differences in metabolite excretion resulting from cancerous metabolism can be integrated into altered processes on the cellular level. Modified nucleosides have great potential as biomarkers in due consideration of the heterogeneity of breast cancer that is reflected by the different molecular subtypes of breast cancer. Our data suggests that the metabolic signature of breast cancer cell lines might be a more subtype-specific tool to predict breast cancer, rather than a universal approach.
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17
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Chu JM, Qi CB, Huang YQ, Jiang HP, Hao YH, Yuan BF, Feng YQ. Metal Oxide-Based Selective Enrichment Combined with Stable Isotope Labeling-Mass Spectrometry Analysis for Profiling of Ribose Conjugates. Anal Chem 2015; 87:7364-72. [DOI: 10.1021/acs.analchem.5b01614] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jie-Mei Chu
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), Department of Chemistry, Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Chu-Bo Qi
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), Department of Chemistry, Wuhan University, Wuhan, Hubei 430072, P.R. China
- Department
of Pathology, Hubei Cancer Hospital, Wuhan, Hubei 430079, P.R. China
| | - Yun-Qing Huang
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), Department of Chemistry, Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Han-Peng Jiang
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), Department of Chemistry, Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Yan-Hong Hao
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), Department of Chemistry, Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Bi-Feng Yuan
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), Department of Chemistry, Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Yu-Qi Feng
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), Department of Chemistry, Wuhan University, Wuhan, Hubei 430072, P.R. China
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18
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Li S, Jin Y, Tang Z, Lin S, Liu H, Jiang Y, Cai Z. A novel method of liquid chromatography-tandem mass spectrometry combined with chemical derivatization for the determination of ribonucleosides in urine. Anal Chim Acta 2015; 864:30-8. [PMID: 25732424 DOI: 10.1016/j.aca.2015.01.044] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 01/20/2015] [Accepted: 01/28/2015] [Indexed: 11/30/2022]
Abstract
Ribonucleosides are the end products of RNA metabolism. These metabolites, especially the modified ribonucleosides, have been extensively evaluated as cancer-related biomarkers. However, the determination of urinary ribonucleosides is still a challenge due to their low abundance, high polarity and serious matrix interferences in urine samples. In this study, a derivatization method based on a chemical reaction between ribonucleosides and acetone to form acetonides was developed for the determination of urinary ribonucleosides. The derivative products, acetonides, were detected by using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The methodological evaluation was performed by quantifying four nucleosides for linear range, average recovery, precision, accuracy and stability. The validated procedures were applied to screen modified ribonucleosides in urine samples. Improvement of separation and enhancement of sensitivity were obtained in the analysis. To identify ribonucleosides, inexpensive isotope labeling acetone (acetone-d6) and label-free acetone were applied to form ordinary and deuterated acetonides, respectively. The two groups of samples were separated with orthogonal partial least squares (OPLS). The ordinary and deuterated pairs of acetonides were symmetrically distributed in the S-plot for easy and visual signal identification. After structural confirmation, a total of 56 ribonucleosides were detected, 52 of which were modified ribonucleosides. The application of derivatization, deuterium-labeling and multivariate statistical analysis offers a new option for selective detection of ribonucleosides in biological samples.
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Affiliation(s)
- Shangfu Li
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, PR China
| | - Yibao Jin
- Shenzhen Institute for Drug Control, Shenzhen 518055, PR China; State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, PR China
| | - Zhi Tang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, PR China
| | - Shuhai Lin
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, PR China
| | - Hongxia Liu
- State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, PR China; Key Laboratory of Metabolomics at Shenzhen, Shenzhen 518055, PR China
| | - Yuyang Jiang
- State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, PR China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, PR China.
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19
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Jiang HP, Qi CB, Chu JM, Yuan BF, Feng YQ. Profiling of cis-diol-containing nucleosides and ribosylated metabolites by boronate-affinity organic-silica hybrid monolithic capillary liquid chromatography/mass spectrometry. Sci Rep 2015; 5:7785. [PMID: 25585609 PMCID: PMC4293604 DOI: 10.1038/srep07785] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 12/15/2014] [Indexed: 12/18/2022] Open
Abstract
RNA contains a large number of modified nucleosides. In the metabolic re-exchange of RNA, modified nucleosides cannot be recycled and are thus excreted from cells into biological fluids. Determination of endogenous modified nucleosides in biological fluids may serve as non-invasive cancers diagnostic methods. Here we prepared boronate-affinity organic-silica hybrid capillary monolithic column (BOHCMC) that exhibited excellent selectivity toward the cis-diol-containing compounds. We then used the prepared BOHCMC as the on-line solid-phase microextraction (SPME) column and developed an on-line SPME-LC-MS/MS method to comprehensively profile cis-diol-containing nucleosides and ribosylated metabolites in human urine. Forty-five cis-diol-containing nucleosides and ribosylated metabolites were successfully identified in human urine. And five ribose conjugates, for the first time, were identified existence in human urine in the current study. Furthermore, the relative quantification suggested 4 cis-diol-containing compounds (5′-deoxy-5′-methylthioadensine, N4-acetylcytidine, 1-ribosyl-N-propionylhistamine and N2,N2,7-trimethylguanosine) increased more than 1.5 folds in all the 3 types of examined cancers (lung cancer, colorectal cancer, and nasopharyngeal cancer) compared to healthy controls. The on-line SPME-LC-MS/MS method demonstrates a promising method for the comprehensive profiling of cis-diol-containing ribose conjugates in human urines, which provides an efficient strategy for the identification and discovery of biomarkers and may be used for the screening of cancers.
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Affiliation(s)
- Han-Peng Jiang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Chu-Bo Qi
- 1] Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China [2] Department of Pathology, Hubei Cancer Hospital, Wuhan 430079, China
| | - Jie-Mei Chu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Bi-Feng Yuan
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Yu-Qi Feng
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China
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20
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Chen H, Yuan B, Miao H, Tan Y, Bai X, Zhao YY, Wang Y. Urine metabolomics reveals new insights into hyperlipidemia and the therapeutic effect of rhubarb. ANALYTICAL METHODS 2015; 7:3113-3123. [DOI: 10.1039/c5ay00023h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2025]
Abstract
Rhubarb has been widely used for the treatment of hyperlipidemia and blood stasis.
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Affiliation(s)
- Hua Chen
- Key Laboratory of Resource Biology and Biotechnology in Western China
- Ministry of Education
- The College of Life Sciences
- Northwest University
- Xi'an
| | - Bin Yuan
- School of Chinese Materia Medica
- Beijing University of Chinese Medicine
- Beijing 100029
- China
| | - Hua Miao
- Key Laboratory of Resource Biology and Biotechnology in Western China
- Ministry of Education
- The College of Life Sciences
- Northwest University
- Xi'an
| | - Yi Tan
- Academy for Advanced Interdisciplinary Studies
- Peking University
- Beijing 100871
- China
| | - Xu Bai
- Solution Centre
- Waters Technologies (Shanghai) Ltd
- China
| | - Ying-Yong Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China
- Ministry of Education
- The College of Life Sciences
- Northwest University
- Xi'an
| | - Yun Wang
- School of Chinese Materia Medica
- Beijing University of Chinese Medicine
- Beijing 100029
- China
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21
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Struck-Lewicka W, Kaliszan R, Markuszewski MJ. Analysis of urinary nucleosides as potential cancer markers determined using LC–MS technique. J Pharm Biomed Anal 2014; 101:50-7. [DOI: 10.1016/j.jpba.2014.04.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 04/18/2014] [Accepted: 04/22/2014] [Indexed: 01/05/2023]
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22
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Wu Q, Wu D, Guan Y. Hybrid Titania–Zirconia Nanoparticles Coated Adsorbent for Highly Selective Capture of Nucleosides from Human Urine in Physiological Condition. Anal Chem 2014; 86:10122-30. [DOI: 10.1021/ac502876u] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Qian Wu
- Key Laboratory
of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
- Dalian Institute of Chemical Physics, University of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Dapeng Wu
- Key Laboratory
of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| | - Yafeng Guan
- Key Laboratory
of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
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23
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Parsons CL, Shaw T, Berecz Z, Su Y, Zupkas P, Argade S. Role of urinary cations in the aetiology of bladder symptoms and interstitial cystitis. BJU Int 2014; 114:286-93. [PMID: 24325253 DOI: 10.1111/bju.12603] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To identify and characterise urinary cationic metabolites, defined as toxic factors, in patients with interstitial cystitis (IC) and in control subjects. To evaluate the cytotoxicity of the urinary cationic metabolite fraction of patients with IC vs control subjects and of individual metabolites in cultured urothelial cells. SUBJECTS AND METHODS Cationic fractions (CFs) were isolated from the urine specimens of 62 patients with IC and 33 control subjects by solid-phase extraction. CF metabolites were profiled using C18 reverse-phase high performance liquid chromatography (RP-HPLC) with UV detection, quantified by area-under-the-peaks using known standards, and normalized to creatinine. RP-HPLC and liquid chromatography (LC)-mass spectrometry (MS)/tandem MS (MS/MS) were used to identify major CF peaks. HTB-4 urothelial cells were used to determine the cytotoxicity of CFs and of individual metabolites with and without Tamm-Horsfall protein (THP). RESULTS RP-HPLC analysis showed that metabolite quantity was twofold higher in patients with IC compared with control subjects. The mean (SEM) for control subjects vs patients was 3.1 (0.2) vs 6.3 (0.5) mAU*min/μg creatinine (P < 0.001). LC-MS identified 20 metabolites. Patients with IC had higher levels of modified nucleosides, amino acids and tryptophan derivatives compared with control subjects. The CF cytotoxicity was higher for patients with IC compared with control subjects. The mean (SEM) for control subjects vs patients was -2.3 (2.0)% vs 36.7 (2.7)% (P < 0.001). A total of 17 individual metabolites were tested for their cytotoxicity. Cytotoxicity data for major metabolites were all significant (P < 0.001): 1-methyladenosine (51%), 5-methylcytidine (36%), 1-methyl guanine (31%), N(4)-acetylcytidine (24%), N(7)-methylguanosine (20%) and L-Tryptophan (16%). These metabolites were responsible for higher toxicity in patients with IC. The toxicity of all metabolites was significantly lower in the presence of control THP (P < 0.001). CONCLUSIONS Major urinary cationic metabolites were characterised and found to be present in higher amounts in patients with IC compared with control subjects. The cytotoxicity of cationic metabolites in patients with IC was significantly higher than in control subjects, and control THP effectively lowered the cytotoxicity of these metabolites. These data provide new insights into toxic factor composition as well as a framework in which to develop new therapeutic strategies to sequester their harmful activity, which may help relieve the bladder symptoms associated with IC.
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Affiliation(s)
- C Lowell Parsons
- Department of Urology, University of California (UC) San Diego Health System, San Diego, USA
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24
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Ren Y, Liu J, Li L, McLuckey MN, Ouyang Z. Direct Mass Spectrometry Analysis of Untreated Samples of Ultralow Amounts Using Extraction Nano-Electrospray. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2013; 5:10.1039/C3AY41149D. [PMID: 24312137 PMCID: PMC3845969 DOI: 10.1039/c3ay41149d] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Direct mass spectrometry analysis of untreated samples of volumes as low as 0.2 µL were achieved using fast extraction and nanoESI (electrospray ionization) in a combined fashion. The analytes in dried samples on paper substrates were extracted by organic solvent in a nanoESI tube and ionized with a high voltage applied for generating a spray. The ionization source produced stable signals for different atmospheric pressure interfaces of triple quadrupole instruments. Analysis time more than 20 minutes were available with 10 µL solvent consumed for the entire analysis process. The performance in qualitative and quantitative analysis was characterized with a wide variety of samples. Limits of detection as low as 0.1 ng/mL (corresponding to an absolute amount of 0.05 pg) were obtained for analysis of atrazine in river water, thiabendazole in orange homogenate, and methamphetamine in blood.
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Affiliation(s)
- Yue Ren
- Weldon School of Biomedical Engineering, Purdue, West Lafayette, IN 47906
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25
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Fraser K, Lane GA, Otter DE, Harrison SJ, Quek SY, Hemar Y, Rasmussen S. Non-targeted analysis by LC-MS of major metabolite changes during the oolong tea manufacturing in New Zealand. Food Chem 2013; 151:394-403. [PMID: 24423549 DOI: 10.1016/j.foodchem.2013.11.054] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 10/04/2013] [Accepted: 11/11/2013] [Indexed: 01/05/2023]
Abstract
Oolong tea is a semi-fermented tea that is partially oxidised during the manufacturing process to create a product unique in composition. In this study, we investigated the potential of non-targeted LC-MS with two complementary chromatographic modes to provide a "comprehensive and unbiased" view of biochemical compositional changes occurring during oolong tea manufacturing in New Zealand. Tea leaf samples from throughout the manufacturing/fermentation process during three different harvest periods (spring, summer and autumn) were analysed by four different LC-MS streams. Principal component analysis revealed the de-greening stage of the manufacturing process was responsible for major changes in the biochemical profile, with the methodology detecting changes in a wide range of metabolites of differing polarities, such as flavonoids, nucleosides and primeverosides. Changes during the fermentation phase of the manufacturing process were less marked, however significant increases in levels of free amino acids, a hydroxyjasmonic acid and related metabolites were observed.
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Affiliation(s)
- Karl Fraser
- AgResearch, Private Bag 11008, Tennent Drive, Palmerston North 4410, New Zealand; School of Chemical Sciences, University of Auckland, Auckland 1142, New Zealand.
| | - Geoff A Lane
- AgResearch, Private Bag 11008, Tennent Drive, Palmerston North 4410, New Zealand
| | - Don E Otter
- AgResearch, Private Bag 11008, Tennent Drive, Palmerston North 4410, New Zealand
| | - Scott J Harrison
- AgResearch, Private Bag 11008, Tennent Drive, Palmerston North 4410, New Zealand
| | - Siew-Young Quek
- School of Chemical Sciences, University of Auckland, Auckland 1142, New Zealand
| | - Yacine Hemar
- School of Chemical Sciences, University of Auckland, Auckland 1142, New Zealand
| | - Susanne Rasmussen
- AgResearch, Private Bag 11008, Tennent Drive, Palmerston North 4410, New Zealand
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26
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Li H, Shan Y, Qiao L, Dou A, Shi X, Xu G. Facile Synthesis of Boronate-Decorated Polyethyleneimine-Grafted Hybrid Magnetic Nanoparticles for the Highly Selective Enrichment of Modified Nucleosides and Ribosylated Metabolites. Anal Chem 2013; 85:11585-92. [DOI: 10.1021/ac402979w] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Hua Li
- CAS Key Lab of Separation Sciences for
Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yuanhong Shan
- CAS Key Lab of Separation Sciences for
Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Lizhen Qiao
- CAS Key Lab of Separation Sciences for
Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Abo Dou
- CAS Key Lab of Separation Sciences for
Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xianzhe Shi
- CAS Key Lab of Separation Sciences for
Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Guowang Xu
- CAS Key Lab of Separation Sciences for
Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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27
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Struck W, Siluk D, Yumba-Mpanga A, Markuszewski M, Kaliszan R, Markuszewski MJ. Liquid chromatography tandem mass spectrometry study of urinary nucleosides as potential cancer markers. J Chromatogr A 2013; 1283:122-31. [DOI: 10.1016/j.chroma.2013.01.111] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Revised: 01/28/2013] [Accepted: 01/30/2013] [Indexed: 12/14/2022]
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28
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Martin AR, Vasseur JJ, Smietana M. Boron and nucleic acid chemistries: merging the best of both worlds. Chem Soc Rev 2013; 42:5684-713. [DOI: 10.1039/c3cs60038f] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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29
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Beach DG, Gabryelski W. Revisiting the reactivity of uracil during collision induced dissociation: tautomerism and charge-directed processes. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2012; 23:858-868. [PMID: 22351291 DOI: 10.1007/s13361-012-0343-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 01/13/2012] [Accepted: 01/17/2012] [Indexed: 05/31/2023]
Abstract
In our recent work towards the nontarget identification of products of nucleic acid (NA) damage in urine, we have found previous work describing the dissociation of NA bases not adequate to fully explain their observed reactivity. Here we revisit the gas-phase chemistry of protonated uracil (U) during collision induced dissociation (CID) using two modern tandem mass spectrometry techniques; quadrupole ion trap (QIT) and quadrupole time of flight (Q-TOF). We present detailed mechanistic proposals that account for all observed products of our experiments and from previous isotope labeling data, and that are supported by previous ion spectroscopy results and theoretical work. The diverse product-ions of U cannot be explained adequately by only considering the lowest energy form of protonated U as a precursor. The tautomers adopted by U during collisional excitation make it possible to relate the complex reactivity observed to reasonable mechanistic proposals and feasible product-ion structures for this small highly conjugated heterocycle. These reactions proceed from four different stable tautomers, which are excited to a specific activated precursor from which dissociation can occur via a charge-directed process through a favorable transition state to give a stabilized product. Understanding the chemistry of uracil at this level will facilitate the identification of new modified uracil derivatives in biological samples based solely on their reactivity during CID. Our integrated approach to describing ion dissociation is widely applicable to other NA bases and similar classes of biomolecules.
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Affiliation(s)
- Daniel G Beach
- Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
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Giessing AMB, Kirpekar F. Mass spectrometry in the biology of RNA and its modifications. J Proteomics 2012; 75:3434-49. [PMID: 22348820 DOI: 10.1016/j.jprot.2012.01.032] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 01/20/2012] [Accepted: 01/26/2012] [Indexed: 01/31/2023]
Abstract
Many powerful analytical techniques for investigation of nucleic acids exist in the average modern molecular biology lab. The current review will focus on questions in RNA biology that have been answered by the use of mass spectrometry, which means that new biological information is the purpose and outcome of most of the studies we refer to. The review begins with a brief account of the subject "MS in the biology of RNA" and an overview of the prevalent RNA modifications identified to date. Fundamental considerations about mass spectrometric analysis of RNA are presented with the aim of detailing the analytical possibilities and challenges relating to the unique chemical nature of nucleic acids. The main biological topics covered are RNA modifications and the enzymes that perform the modifications. Modifications of RNA are essential in biology, and it is a field where mass spectrometry clearly adds knowledge of biological importance compared to traditional methods used in nucleic acid research. The biological applications are divided into analyses exclusively performed at the building block (mainly nucleoside) level and investigations involving mass spectrometry at the oligonucleotide level. We conclude the review discussing aspects of RNA identification and quantifications, which are upcoming fields for MS in RNA research. This article is part of a Special Section entitled: Understanding genome regulation and genetic diversity by mass spectrometry.
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Affiliation(s)
- Anders M B Giessing
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230 Odense M, Denmark
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Lorkiewicz P, Higashi RM, Lane AN, Fan TWM. High information throughput analysis of nucleotides and their isotopically enriched isotopologues by direct-infusion FTICR-MS. Metabolomics 2012; 8:930-939. [PMID: 23101002 PMCID: PMC3477816 DOI: 10.1007/s11306-011-0388-y] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Fourier transform-ion cyclotron resonance-mass spectrometry (FTICR-MS) is capable of acquiring unmatched quality of isotopologue data for stable isotope resolved metabolomics (SIRM). This capability drives the need for a continuous ion introduction for obtaining optimal isotope ratios. Here we report the simultaneous analysis of mono and dinucleotides from crude polar extracts by FTICR-MS by adapting an ion-pairing sample preparation method for LC-MS analysis. This involves a rapid cleanup of extracted nucleotides on pipet tips containing a C(18) stationary phase, which enabled global analysis of nucleotides and their (13)C isotopologues at nanomolar concentrations by direct infusion nanoelectrospray FTICR-MS with 5 minutes of data acquisition. The resolution and mass accuracy enabled computer-assisted unambiguous assignment of most nucleotide species, including all phosphorylated forms of the adenine, guanine, uracil and cytosine nucleotides, NAD(+), NADH, NADP(+), NADPH, cyclic nucleotides, several UDP-hexoses, and all their (13)C isotopologues. The method was applied to a SIRM study on human lung adenocarcinoma A549 cells grown in [U-(13)C] glucose with or without the anti-cancer agent methylseleninic acid. At m/z resolving power of 400,000, (13)C-isotopologues of nucleotides were fully resolved from all other elemental isotopologues, thus allowing their (13)C fractional enrichment to be accurately determined. The method achieves both high sample and high information throughput analysis of nucleotides for metabolic pathway reconstruction in SIRM investigations.
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Affiliation(s)
- Pawel Lorkiewicz
- Department of Chemistry, University of Louisville, 2210 S. Brook St, Rm 348 John W. Shumaker Research Building, Louisville, KY 40292, USA
| | - Richard M. Higashi
- Department of Chemistry, University of Louisville, 2210 S. Brook St, Rm 348 John W. Shumaker Research Building, Louisville, KY 40292, USA
- Center for Regulatory Environmental Analytical Metabolomics, 2210 S. Brook St., Louisville, KY 40292, USA
- JG Brown Cancer Center, Clinical Translational Research Building, 505 S. Hancock St., Louisville, KY 40202, USA
| | - Andrew N. Lane
- Center for Regulatory Environmental Analytical Metabolomics, 2210 S. Brook St., Louisville, KY 40292, USA
- JG Brown Cancer Center, Clinical Translational Research Building, 505 S. Hancock St., Louisville, KY 40202, USA
| | - Teresa W-M. Fan
- Department of Chemistry, University of Louisville, 2210 S. Brook St, Rm 348 John W. Shumaker Research Building, Louisville, KY 40292, USA
- Center for Regulatory Environmental Analytical Metabolomics, 2210 S. Brook St., Louisville, KY 40292, USA
- JG Brown Cancer Center, Clinical Translational Research Building, 505 S. Hancock St., Louisville, KY 40202, USA
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Krog JS, Español Y, Giessing AMB, Dziergowska A, Malkiewicz A, Ribas de Pouplana L, Kirpekar F. 3-(3-amino-3-carboxypropyl)-5,6-dihydrouridine is one of two novel post-transcriptional modifications in tRNALys(UUU) from Trypanosoma brucei. FEBS J 2011; 278:4782-96. [PMID: 22040320 DOI: 10.1111/j.1742-4658.2011.08379.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
tRNA is the most heavily modified of all RNA types, with typically 10-20% of the residues being post-transcriptionally altered. Unravelling the modification pattern of a tRNA is a challenging task; there are 92 currently known tRNA modifications, many of which are chemically similar. Furthermore, the tRNA has to be investigated with single-nucleotide resolution in order to ensure complete mapping of all modifications. In the present work, we characterized tRNA(Lys)(UUU) from Trypanosoma brucei, and provide a complete overview of its post-transcriptional modifications. The first step was MALDI-TOF MS of two independent digests of the tRNA, with RNase A and RNase T1, respectively. This revealed digestion products harbouring mass-changing modifications. Next, the modifications were mapped at the nucleotide level in the RNase products by tandem MS. Comparison with the sequence of the unmodified tRNA revealed the modified residues. The modifications were further characterized at the nucleoside level by chromatographic retention time and fragmentation pattern upon higher-order tandem MS. Phylogenetic comparison with modifications in tRNA(Lys) from other organisms was used through the entire analysis. We identified modifications on 12 nucleosides in tRNA(Lys)(UUU), where U47 exhibited a novel modification, 3-(3-amino-3-carboxypropyl)-5,6-dihydrouridine, based on identical chromatographic retention and MS fragmentation as the synthetic nucleoside. A37 was observed in two versions: a minor fraction with the previously described 2-methylthio-N(6)-threonylcarbamoyl-modification, and a major fraction with A37 being modified by a 294.0-Da moiety. The latter product is the largest adenosine modification reported so far, and we discuss its nature and origin.
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Affiliation(s)
- Jesper S Krog
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
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Development and validation of a hydrophilic interaction chromatography-tandem mass spectrometry method with on-line polar extraction for the analysis of urinary nucleosides. Potential application in clinical diagnosis. J Chromatogr A 2011; 1218:9055-63. [PMID: 22056237 DOI: 10.1016/j.chroma.2011.10.016] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 09/22/2011] [Accepted: 10/05/2011] [Indexed: 10/16/2022]
Abstract
The present paper describes the development, validation and application of a quantitative method for the determination of endogenous nucleosides and nucleobases in urine based on the on-line coupling of a solid-phase extraction step with hydrophilic interaction chromatography-tandem mass spectrometry. The method combines the use of a highly polar restricted-access material (RAM), based on an N-vinylacetamide copolymer, for efficient analyte extraction and matrix removal, with separation by zwitterionic hydrophilic interaction chromatography (ZIC-HILIC), that revealed a satisfactory retention of the polar analytes studied. Detection using a triple quadrupole analyser allowed reliable identification and high-sensitivity quantitation of the target compounds. The on-line configuration developed, RAM-ZIC-HILIC-MS/MS, provides a convenient approach to automate the application to urine analysis, with minimum sample manipulation. The whole method was validated according to European Legislation for bioanalytical methods. The validation steps included the verification of matrix effects, calibration curve, precision, accuracy, selectivity, stability and carry-over in real samples. The results of the validation process revealed that the proposed method is suitable for the reliable determination of nucleosides and nucleobases in human urine, showing limits of detection from 0.1 to 1.3 ng mL(-1). The application to clinical samples was also checked; the results obtained in analyses of urine samples from healthy volunteers and cancer patients using Principal Component Analysis, Hierarchical Cluster Analysis and Soft Independent Modeling of Class Analogy are also shown.
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Analysis of urinary nucleosides as potential tumor markers in human breast cancer by high performance liquid chromatography/electrospray ionization tandem mass spectrometry. Clin Chim Acta 2011; 412:1861-6. [DOI: 10.1016/j.cca.2011.06.027] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Revised: 06/19/2011] [Accepted: 06/21/2011] [Indexed: 02/08/2023]
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Giessing AMB, Scott LG, Kirpekar F. A nano-chip-LC/MSn based strategy for characterization of modified nucleosides using reduced porous graphitic carbon as a stationary phase. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2011; 22:1242-1251. [PMID: 21953107 DOI: 10.1007/s13361-011-0126-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Revised: 03/07/2011] [Accepted: 03/10/2011] [Indexed: 05/31/2023]
Abstract
LC/MS analysis of ribonucleosides is traditionally performed by reverse phase chromatography on silica based C18 type stationary phases using MS compatible buffers and methanol or acetonitrile gradients. Due to the hydrophilic and polar nature of nucleosides, down-scaling C18 analytical methods to a two-column nano-flow setup is inherently difficult. We present a nano-chip LC/MS ion-trap strategy for routine characterization of RNA nucleosides in the fmol range. Nucleosides were analyzed in positive ion mode by reverse phase chromatography using a 75 μ × 150 mm, 5 μ particle porous graphitic carbon (PGC) chip with an integrated 9 mm, 160 nL trapping column. Nucleosides were separated using a formic acid/acetonitrile gradient. The method was able to separate isobaric nucleosides as well as nucleosides with isotopic overlap to allow unambiguous MS( n ) identification on a low resolution ion-trap. Synthesis of 5-hydroxycytidine (oh(5)C) was achieved from 5-hydroxyuracil in a novel three-step enzymatic process. When operated in its native state using formic acid/acetonitrile, PGC oxidized oh(5)C to its corresponding glycols and formic acid conjugates. Reduction of the PGC stationary phase was achieved by flushing the chip with 2.5 mM oxalic acid and adding 1 mM oxalic acid to the online solvents. Analyzed under reduced chromatographic conditions oh(5)C was readily identified by its MH(+) m/z 260 and MS(n) fragmentation pattern. This investigation is, to our knowledge, the first instance where oxalic acid has been used as an online reducing agent for LC/MS. The method was subsequently used for complete characterization of nucleosides found in tRNAs using both PGC and C18 chips.
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Affiliation(s)
- Anders Michael Bernth Giessing
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark.
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Study of retention behaviour and mass spectrometry compatibility in zwitterionic hydrophilic interaction chromatography for the separation of modified nucleosides and nucleobases. J Chromatogr A 2011; 1218:3994-4001. [DOI: 10.1016/j.chroma.2011.05.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 04/14/2011] [Accepted: 05/03/2011] [Indexed: 11/24/2022]
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Struck W, Waszczuk-Jankowska M, Kaliszan R, Markuszewski MJ. The state-of-the-art determination of urinary nucleosides using chromatographic techniques "hyphenated" with advanced bioinformatic methods. Anal Bioanal Chem 2011; 401:2039-50. [PMID: 21359827 PMCID: PMC3175040 DOI: 10.1007/s00216-011-4789-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 02/03/2011] [Accepted: 02/08/2011] [Indexed: 11/29/2022]
Abstract
Over the last decade metabolomics has gained increasing popularity and significance in life sciences. Together with genomics, transcriptomics and proteomics, metabolomics provides additional information on specific reactions occurring in humans, allowing us to understand some of the metabolic pathways in pathological processes. Abnormal levels of such metabolites as nucleosides in the urine of cancer patients (abnormal in relation to the levels observed in healthy volunteers) seem to be an original potential diagnostic marker of carcinogenesis. However, the expectations regarding the diagnostic value of nucleosides may only be justified once an appropriate analytical procedure has been applied for their determination. The achievement of good specificity, sensitivity and reproducibility of the analysis depends on the right choice of the phases (e.g. sample pretreatment procedure), the analytical technique and the bioinformatic approach. Improving the techniques and methods applied implies greater interest in exploration of reliable diagnostic markers. This review covers the last 11 years of determination of urinary nucleosides conducted with the use of high-performance liquid chromatography in conjunction with various types of detection, sample pretreatment methods as well as bioinformatic data processing procedures.
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Affiliation(s)
- Wiktoria Struck
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Al. Gen. Hallera 107, 80-416 Gdańsk, Poland
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Wang W, Feng B, Li X, Yin P, Gao P, Zhao X, Lu X, Zheng M, Xu G. Urinary metabolic profiling of colorectal carcinoma based on online affinity solid phase extraction-high performance liquid chromatography and ultra performance liquid chromatography-mass spectrometry. MOLECULAR BIOSYSTEMS 2010; 6:1947-1955. [PMID: 20617254 DOI: 10.1039/c004994h] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Colorectal carcinoma (CRC) is the third most commonly encountered cancer and fourth cause of cancer-associated death worldwide. Abundant studies have demonstrated that one of the best effective therapies for enhancing the 5-year survival rate of patients is to diagnose the disease at an early stage. Urine metabonomics is widely being utilized as an efficient platform to investigate the metabolic changes and discover the potential biomarkers of malignant diseases. In this study both ultra-performance liquid chromatography-mass spectrometry (UPLC-MS) and online affinity solid phase extraction-high performance liquid chromatography (SPE-HPLC) were used to analyze the urinary metabolites from 34 healthy volunteers, 34 benign colorectal tumor and 50 colorectal carcinoma patients to produce comprehensive metabolic profiling data. A reliable separation between the control and disease groups as well as significantly changed metabolites were obtained from orthogonal signal correction partial least squares models which were built based on the two separate data sets from UPLC-MS and affinity SPE-HPLC, respectively. 15 metabolites, showing the metabolic disorders of CRC, were identified finally. These metabolites were found to be related to glutamine metabolism, fatty acid oxidation, nucleotide biosynthesis and protein metabolism.
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Affiliation(s)
- Wenzhao Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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Quantification of intermediates of the methionine and polyamine metabolism by liquid chromatography–tandem mass spectrometry in cultured tumor cells and liver biopsies. J Chromatogr A 2010; 1217:3282-8. [DOI: 10.1016/j.chroma.2010.01.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2009] [Revised: 12/22/2009] [Accepted: 01/08/2010] [Indexed: 11/22/2022]
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Li HY, Wang SM, Liu HM, Bu SS, Li J, Han D, Zhang MZ, Wu GY. Separation and identification of purine nucleosides in the urine of patients with malignant cancer by reverse phase liquid chromatography/electrospray tandem mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2009; 44:641-51. [PMID: 19142897 DOI: 10.1002/jms.1539] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Urinary-modified nucleosides have a potential role as cancer biomarkers for a number of malignant diseases. High performance liquid chromatography (HPLC) was combined with full-scan mass spectrometry, MS/MS analysis and accurate mass measurements in order to identify purine nucleosides purified from urine. Potential purine nucleosides were assessed by their evident UV absorbance in the HPLC chromatogram and then further examined by the mass spectrometric techniques. In this manner, numerous modified purine nucleosides were identified in the urine samples from cancer patients including xanthine, adenosine, N1-methyladenosine, 5'-deoxy-5'-methylthioadenosine, 2-methyladenosine, N6-threonylcarbamoyladenosine, inosine, N1-methylinosine, guanosine, N1-methylguanosine, N7-methylguanine, N2-methylguanosine, N2,N2-dimethyguanosine, N2,N2,N7-trimethylguanosine. Furthermore, a number of novel purine nucleosides were tentatively identified via critical interpretation of the combined mass spectrometric data including N3-methyladenosine, N7-methyladenine, 5'-dehydro-2'-deoxyinosine, N3-methylguanine, O6-methylguanosine, N1,N2,N7-trimethylguanosine, N1-methyl-N2-ethylguanosine and N7-methyl-N1-ethylguanosine.
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Affiliation(s)
- Hua-Yu Li
- Department of Chemistry, Zhengzhou University, 100 Science Road, 450001 Zhengzhou, China
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Henneges C, Bullinger D, Fux R, Friese N, Seeger H, Neubauer H, Laufer S, Gleiter CH, Schwab M, Zell A, Kammerer B. Prediction of breast cancer by profiling of urinary RNA metabolites using Support Vector Machine-based feature selection. BMC Cancer 2009; 9:104. [PMID: 19344524 PMCID: PMC2680413 DOI: 10.1186/1471-2407-9-104] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2008] [Accepted: 04/05/2009] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Breast cancer belongs to the most frequent and severe cancer types in human. Since excretion of modified nucleosides from increased RNA metabolism has been proposed as a potential target in pathogenesis of breast cancer, the aim of the present study was to elucidate the predictability of breast cancer by means of urinary excreted nucleosides. METHODS We analyzed urine samples from 85 breast cancer women and respective healthy controls to assess the metabolic profiles of nucleosides by a comprehensive bioinformatic approach. All included nucleosides/ribosylated metabolites were isolated by cis-diol specific affinity chromatography and measured with liquid chromatography ion trap mass spectrometry (LC-ITMS). A valid set of urinary metabolites was selected by exclusion of all candidates with poor linearity and/or reproducibility in the analytical setting. The bioinformatic tool of Oscillating Search Algorithm for Feature Selection (OSAF) was applied to iteratively improve features for training of Support Vector Machines (SVM) to better predict breast cancer. RESULTS After identification of 51 nucleosides/ribosylated metabolites in the urine of breast cancer women and/or controls by LC- ITMS coupling, a valid set of 35 candidates was selected for subsequent computational analyses. OSAF resulted in 44 pairwise ratios of metabolite features by iterative optimization. Based on this approach ultimately estimates for sensitivity and specificity of 83.5% and 90.6% were obtained for best prediction of breast cancer. The classification performance was dominated by metabolite pairs with SAH which highlights its importance for RNA methylation in cancer pathogenesis. CONCLUSION Extensive RNA-pathway analysis based on mass spectrometric analysis of metabolites and subsequent bioinformatic feature selection allowed for the identification of significant metabolic features related to breast cancer pathogenesis. The combination of mass spectrometric analysis and subsequent SVM-based feature selection represents a promising tool for the development of a non-invasive prediction system.
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Affiliation(s)
- Carsten Henneges
- Center for Bioinformatics Tübingen (ZBIT), Sand 1, D-72076 Tübingen, Germany.
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Evaluation of urinary nucleosides in breast cancer patients before and after tumor removal. Clin Biochem 2009; 42:540-3. [PMID: 19186175 DOI: 10.1016/j.clinbiochem.2008.12.026] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2008] [Revised: 12/01/2008] [Accepted: 12/29/2008] [Indexed: 01/13/2023]
Abstract
OBJECTIVE Evaluation of altered urinary nucleosides before and after tumor removal of breast cancer (BCa). DESIGN AND METHODS Targeted metabolite profiling of 14 urinary nucleosides was conducted with both pre- and post-operative female patients with BCa (n=150, age: 46.6+/-7.7 years), and female controls (n=150, age: 46.8+/-7.7 years) by liquid chromatography-tandem mass spectrometry coupled to on-line extraction. RESULTS Levels of modified nucleosides (5-hydroxymethyl-2'-deoxyuridine, P<0.001; 8-hydroxy-2'-deoxyguanosine, P<0.001; 1-methyladenosine, P<0.02; N(2),N(2)-dimethylguanosine, P<0.001) were significantly higher in pre-operative patients than in both normal controls and post-operative patients. CONCLUSIONS This approach could be used to further understand the pathogenesis of BCa as well as to evaluate the effects of medical treatment.
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Stevens AP, Dettmer K, Wallner S, Bosserhoff AK, Oefner PJ. Quantitative analysis of 5′-deoxy-5′-methylthioadenosine in melanoma cells by liquid chromatography-stable isotope ratio tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 876:123-8. [DOI: 10.1016/j.jchromb.2008.10.038] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2008] [Revised: 10/21/2008] [Accepted: 10/23/2008] [Indexed: 10/21/2022]
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Frickenschmidt A, Fröhlich H, Bullinger D, Zell A, Laufer S, Gleiter CH, Liebich H, Kammerer B. Metabonomics in cancer diagnosis: mass spectrometry-based profiling of urinary nucleosides from breast cancer patients. Biomarkers 2008; 13:435-49. [DOI: 10.1080/13547500802012858] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Li HY, Wang SM, Liu HM, Li J, Han D, Bu SS, Zhang MZ. Analysis of modified nucleosides in the urine of patients with malignant cancer by liquid chromatography/electrospray ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2008; 22:3161-3171. [PMID: 18798199 DOI: 10.1002/rcm.3721] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
As modified nucleosides reflect altered tRNA turnover which seems to be impaired in the body of cancer patients, they have been evaluated as potential tumor markers. High-performance liquid chromatography/electrosprary ionization quadrupole time-of-flight mass spectrometry (HPLC/ESI-Q-TOFMS) was used to identify nucleosides purified from urine in positive ionization mode. Potential nucleosides were assessed by their evident UV absorbance in HPLC and then further examined by mass spectrometric techniques. In this manner, 21 nucleosides were detected in the urine of a patient with lymphoid cancer including three modified nucleosides 5'-dehydro-2-deoxyinosine, N1,N2,N7-trimethylguanosine and N1-methyl-N2-ethylguanosine, which had never been reported previously.
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Affiliation(s)
- Hua-Yu Li
- Department of Chemistry, Zhengzhou University, 100 Science Road, 450001 Zhengzhou, China
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Bullinger D, Fux R, Nicholson G, Plontke S, Belka C, Laufer S, Gleiter CH, Kammerer B. Identification of urinary modified nucleosides and ribosylated metabolites in humans via combined ESI-FTICR MS and ESI-IT MS analysis. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2008; 19:1500-1513. [PMID: 18657436 DOI: 10.1016/j.jasms.2008.06.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2008] [Revised: 06/19/2008] [Accepted: 06/20/2008] [Indexed: 05/26/2023]
Abstract
The physiological response of the human body to several diseases can be reflected by the metabolite pattern in biological fluids. Cancer, like other diseases accompanied by metabolic disorders, causes characteristic effects on cell turnover rate, activity of modifying enzymes, and RNA/DNA modifications. This results in an altered excretion of modified nucleosides and biochemically related compounds. In the course of our metabolic profiling project, we screened 24-h urine of patients suffering from lung, rectal, or head and neck cancer for previously unknown ribosylated metabolites. Therefore, we developed a sample preparation procedure based on boronate affinity chromatography followed by additional prepurification with preparative TLC. The isolated metabolites were analyzed by ion trap mass spectrometry (IT MS) and Fourier transform ion cyclotron resonance mass spectrometry (FTICR MS). IT MS was applied for LC-auto MS(3) screening runs and MS(n(n=4-6)) syringe pump infusion experiments, yielding characteristic fragmentation patterns. FTICR MS measurements enabled the calculation of corresponding molecular formulae based on accurate mass determination (mass accuracy: 1-5 ppm for external and sub-ppm values for internal calibration). We were able to identify 22 metabolites deriving from cellular RNA metabolism and related metabolic pathways like histidine metabolism, purine biosynthesis, methionine/polyamine cycle, and nicotinate/nicotinamide metabolism. The compounds 1-ribosyl-3-hydroxypyridinium, 1-ribosyl-pyridinium, and 3-ribosyl-1-methyl-l-histidinium as well as a series of ribosylated histamines, conjugated to carboxylic acids at the N(omega)-position were found as novel urinary constituents. The occurrence of the modified nucleosides 2-methylthio-N(6)-(cis-hydroxyisopentenyl)-adenosine, 5-methoxycarbonylmethyl-2-thiouridine, N(6)-methyl-N(6)-threonylcarbamoyladenosine, and 2-methylthio-N(6)-threonylcarbamoyladenosine in human urine is verified for the first time.
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Affiliation(s)
- Dino Bullinger
- Department of Clinical Pharmacology, Institute of Pharmacology and Toxicology, University Hospital Tübingen, Tübingen, Germany
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Molecularly imprinted polymer of 5-methyluridine for solid-phase extraction of pyrimidine nucleoside cancer markers in urine. Bioorg Med Chem 2008; 16:8932-9. [PMID: 18789867 DOI: 10.1016/j.bmc.2008.08.063] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2008] [Revised: 07/15/2008] [Accepted: 08/26/2008] [Indexed: 11/23/2022]
Abstract
Normal and modified urinary nucleosides represent potential biomarkers for cancer diagnosis. To selectively extract modified nucleosides, we developed a molecularly imprinted polymer (MIP) of 5-methyluridine as selective material for molecularly imprinted solid-phase extraction (MISPE). The MIPs were obtained from vinyl-phenylboronate ester derivative of the template, acrylamide and pentaerythritol triacrylate co-polymer, and were tested in batch and cartridge experiments with aqueous samples. Our results indicated that the imprinted polymer was selective for pyrimidine nucleosides with a K(d) and a B(max) of 46 microM and 18 micromol/g, respectively. Finally, a MISPE of the most common pyrimidine nucleoside cancer markers in urine sample was realized.
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Bullinger D, Fröhlich H, Klaus F, Neubauer H, Frickenschmidt A, Henneges C, Zell A, Laufer S, Gleiter CH, Liebich H, Kammerer B. Bioinformatical evaluation of modified nucleosides as biomedical markers in diagnosis of breast cancer. Anal Chim Acta 2008; 618:29-34. [DOI: 10.1016/j.aca.2008.04.048] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2008] [Revised: 04/17/2008] [Accepted: 04/18/2008] [Indexed: 11/28/2022]
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Metabolic signature of breast cancer cell line MCF-7: profiling of modified nucleosides via LC-IT MS coupling. BMC BIOCHEMISTRY 2007; 8:25. [PMID: 18047657 PMCID: PMC2219991 DOI: 10.1186/1471-2091-8-25] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2007] [Accepted: 11/29/2007] [Indexed: 11/22/2022]
Abstract
Background Cancer, like other diseases accompanied by strong metabolic disorders, shows characteristic effects on cell turnover rate, activity of modifying enzymes and DNA/RNA modifications, resulting also in elevated amounts of excreted modified nucleosides. For a better understanding of the impaired RNA metabolism in breast cancer cells, we screened these metabolites in the cell culture supernatants of the breast cancer cell line MCF-7 and compared it to the human mammary epithelial cells MCF-10A. The nucleosides were isolated and analyzed via 2D-chromatographic techniques: In the first dimension by cis-diol specific boronate affinity extraction and subsequently by reversed phase chromatography coupled to an ion trap mass spectrometer. Results Besides the determination of ribonucleosides, additional compounds with cis-diol structure, deriving from cross-linked biochemical pathways, like purine-, histidine- and polyamine metabolism were detected. In total, 36 metabolites were identified by comparison of fragmentation patterns and retention time. Relation to the internal standard isoguanosine yielded normalized area ratios for each identified compound and enabled a semi-quantitative metabolic signature of both analyzed cell lines. 13 of the identified 26 modified ribonucleosides were elevated in the cell culture supernatants of MCF-7 cells, with 5-methyluridine, N2,N2,7-trimethylguanosine, N6-methyl-N6-threonylcarbamoyladenosine and 3-(3-aminocarboxypropyl)-uridine showing the most significant differences. 1-ribosylimidazole-4-acetic acid, a histamine metabolite, was solely found in the supernatants of MCF-10A cells, whereas 1-ribosyl-4-carboxamido-5-aminoimidazole and S-adenosylmethionine occurred only in supernatants of MCF-7 cells. Conclusion The obtained results are discussed against the background of pathological changes in cell metabolism, resulting in new perspectives for modified nucleosides and related metabolites as possible biomedical markers for breast carcinoma in vivo.
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Tuytten R, Lemière F, Esmans EL, Herrebout WA, van der Veken BJ, Maes BUW, Witters E, Newton RP, Dudley E. Role of Nitrogen Lewis Basicity in Boronate Affinity Chromatography of Nucleosides. Anal Chem 2007; 79:6662-9. [PMID: 17672481 DOI: 10.1021/ac0709089] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Urinary modified nucleosides have a potential role as cancer biomarkers, and most of the methods used in their study have utilized low-pressure phenylboronate affinity chromatography materials for the purification of the cis-diol-containing nucleosides. In this study, a boronate HPLC column was surprisingly shown not to trap the nucleosides as would be expected from experience with the classic Affigel 601 resin but showed only partial selectivity toward cis-diol groups while other groups exhibited better retention. In aprotic conditions, trapping of nucleosides was possible; however, the selectivity toward cis-diol-containing compounds was lost with the Lewis basicity of available nitrogens being the main determinant of retention. The experimental findings are compared to and confirmed by DFT calculations.
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Affiliation(s)
- Robin Tuytten
- Department of Chemistry, Nucleoside Research and Mass Spectrometry Unit, and Center for Proteomics and Mass Spectrometry, University of Antwerp, Antwerp, Belgium
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