1
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Liu X, Fu B, Chen J, Sun Z, Zheng D, Li Z, Gu B, Zhang Y, Lu H. High-throughput intact Glycopeptide quantification strategy with targeted-MS (HTiGQs-target) reveals site-specific IgG N-glycopeptides as biomarkers for hepatic disorder diagnosis and staging. Carbohydr Polym 2024; 325:121499. [PMID: 38008487 DOI: 10.1016/j.carbpol.2023.121499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/12/2023] [Accepted: 10/13/2023] [Indexed: 11/28/2023]
Abstract
Liver disease is one of the leading causes of global mortality, and identifying biomarkers for diagnosing the progression of liver diseases is crucial for improving its outcomes. Targeted mass spectrometry technology is a powerful tool with unique advantages for verifying biomarker candidates and clinical applications. It is particularly useful in validating protein biomarkers with post-translational modifications, eliminating the need for site-specific antibodies. Especially, targeted mass spectrometry technique is particularly critical for translation of glycoproteins into clinical applications as there are no site-specific antibodies for N-glycosylation. Nevertheless, its limitation in analyzing only one sample per run has become apparent when dealing with a large number of clinical samples. Herein, we developed a high-throughput intact N-glycopeptides quantification strategy with targeted-MS (HTiGQs-Target), which allows the validation of 20 samples per run with an average analysis time of only 3 min per sample. We applied HTiGQs-Target in a cohort of 461 serum samples (including 120 healthy controls (HC), 127 chronic hepatitis B (CHB) cases, 106 liver cirrhosis (LC) cases, and 108 hepatocellular carcinomas (HCC) cases) and found that a panel of 10 IgG N-glycopeptides have strong clinical utility in evaluating the severity of the liver disease.
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Affiliation(s)
- Xuejiao Liu
- Liver Cancer Institute of Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China; Department of Chemistry and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, China
| | - Bin Fu
- Department of Chemistry and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, China
| | - Jierong Chen
- Laboratory Medicine of Guangdong Provincial People's Hospital and Guangdong, Academy of Medical Sciences, Guangzhou, Guangdong 510000, China
| | - Zhenyu Sun
- Liver Cancer Institute of Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Dongdong Zheng
- Department of Ultrasound, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
| | - Zhonghua Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Bing Gu
- Laboratory Medicine of Guangdong Provincial People's Hospital and Guangdong, Academy of Medical Sciences, Guangzhou, Guangdong 510000, China.
| | - Ying Zhang
- Liver Cancer Institute of Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China; Department of Chemistry and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, China.
| | - Haojie Lu
- Liver Cancer Institute of Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China; Department of Chemistry and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, China.
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2
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Hanamatsu H, Miura Y, Nishikaze T, Yokota I, Homan K, Onodera T, Hayakawa Y, Iwasaki N, Furukawa JI. Simultaneous and sialic acid linkage-specific N- and O-linked glycan analysis by ester-to-amide derivatization. Glycoconj J 2023; 40:259-267. [PMID: 36877384 DOI: 10.1007/s10719-023-10109-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 02/14/2023] [Accepted: 02/21/2023] [Indexed: 03/07/2023]
Abstract
Characterization of O-glycans linked to serine or threonine residues in glycoproteins has mostly been achieved using chemical reaction approaches because there are no known O-glycan-specific endoglycosidases. Most O-glycans are modified with sialic acid residues at the non-reducing termini through various linkages. In this study, we developed a novel approach for sialic acid linkage-specific O-linked glycan analysis through lactone-driven ester-to-amide derivatization combined with non-reductive β-elimination in the presence of hydroxylamine. O-glycans released by non-reductive β-elimination were efficiently purified using glycoblotting via chemoselective ligation between carbohydrates and a hydrazide-functionalized polymer, followed by modification of methyl or ethyl ester groups of sialic acid residues on solid-phase. In-solution lactone-driven ester-to-amide derivatization of ethyl-esterified O-glycans was performed, and the resulting sialylated glycan isomers were discriminated by mass spectrometry. In combination with PNGase F digestion, we carried out simultaneous, quantitative, and sialic acid linkage-specific N- and O-linked glycan analyses of a model glycoprotein and human cartilage tissue. This novel glycomic approach will facilitate detailed characterization of biologically relevant sialylated N- and O-glycans on glycoproteins.
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Affiliation(s)
- Hisatoshi Hanamatsu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Hokkaido, 060-8638, Sapporo, Japan.
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, 060-8638, Japan.
| | - Yoshiaki Miura
- Sumitomo Bakelite Co., Ltd., 5-8, Tennoz Parkside Building, Higashi-Shinagawa 2-chome, Shinagawa-ku, 140-0002, Tokyo, Japan
| | - Takashi Nishikaze
- Solutions COE, Analytical & Measuring Instruments Division, Shimadzu Corporation, 604-8511, Kyoto, Japan
| | - Ikuko Yokota
- Institute for Glyco-core Research (iGCORE), Nagoya University, 464-8601, Nagoya, Japan
| | - Kentaro Homan
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Hokkaido, 060-8638, Sapporo, Japan
| | - Tomohiro Onodera
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Hokkaido, 060-8638, Sapporo, Japan
| | - Yoshihiro Hayakawa
- Solutions COE, Analytical & Measuring Instruments Division, Shimadzu Corporation, 604-8511, Kyoto, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Hokkaido, 060-8638, Sapporo, Japan
| | - Jun-Ichi Furukawa
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Hokkaido, 060-8638, Sapporo, Japan.
- Institute for Glyco-core Research (iGCORE), Nagoya University, 464-8601, Nagoya, Japan.
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3
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2019-2020. MASS SPECTROMETRY REVIEWS 2022:e21806. [PMID: 36468275 DOI: 10.1002/mas.21806] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
This review is the tenth update of the original article published in 1999 on the application of matrix-assisted laser desorption/ionization (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2020. Also included are papers that describe methods appropriate to analysis by MALDI, such as sample preparation techniques, even though the ionization method is not MALDI. The review is basically divided into three sections: (1) general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation, quantification and the use of arrays. (2) Applications to various structural types such as oligo- and polysaccharides, glycoproteins, glycolipids, glycosides and biopharmaceuticals, and (3) other areas such as medicine, industrial processes and glycan synthesis where MALDI is extensively used. Much of the material relating to applications is presented in tabular form. The reported work shows increasing use of incorporation of new techniques such as ion mobility and the enormous impact that MALDI imaging is having. MALDI, although invented nearly 40 years ago is still an ideal technique for carbohydrate analysis and advancements in the technique and range of applications show little sign of diminishing.
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Affiliation(s)
- David J Harvey
- Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Oxford, UK
- Department of Chemistry, University of Oxford, Oxford, Oxfordshire, United Kingdom
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4
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Jin W, Lu Y, Li C, Zou M, Chen Q, Nan L, Wei M, Wang C, Huang L, Wang Z. Improved Glycoqueuing Strategy Reveals Novel α2,3-Linked Di-/Tri-Sialylated Oligosaccharide Isomers in Human Milk. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:13996-14004. [PMID: 36278935 DOI: 10.1021/acs.jafc.2c04499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Sialylated human milk oligosaccharides (SHMOs) possess unique biological activities. Qualitative and quantitative analyses of SHMOs at different lactation stages are limited by interference from neutral oligosaccharides, glycan structural complexity, and low detection sensitivity. Herein, our previously developed glycoqueuing strategy was improved and applied to enable an isomer-specific quantitative comparison of SHMOs between colostrum milk (CM) and mature milk (MM). A total of 49 putative structures were determined, including 1 α2,6-linked and 13 α2,3-linked isomers separated from seven newly discovered SHMO compositions. The content of most oligosaccharides was more than 50% lower in MM than in CM, and α2,3-sialylation was observed in 43.74% of SHMOs from CM and 22.95% of SHMOs from MM. Finally, the fucosylation level of the SHMOs increased from 16.45 to 22.28% with prolonged lactation. These findings provide the basis for further studies on the structure-activity relationship of SHMOs and a blueprint to improve infant formula.
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Affiliation(s)
- Wanjun Jin
- Shaanxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
- College of Life Science, Yuncheng University, Yuncheng 044000, China
| | - Yu Lu
- Shaanxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Cheng Li
- Shaanxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Meiyi Zou
- Shaanxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Qinghui Chen
- Shaanxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Lijing Nan
- Shaanxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Ming Wei
- Shaanxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Chengjian Wang
- Shaanxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Linjuan Huang
- Shaanxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Zhongfu Wang
- Shaanxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
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5
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Yang S, Cui M, Liu Q, Liao Q. Glycosylation of immunoglobin G in tumors: Function, regulation and clinical implications. Cancer Lett 2022; 549:215902. [PMID: 36096412 DOI: 10.1016/j.canlet.2022.215902] [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: 06/07/2022] [Revised: 08/30/2022] [Accepted: 08/30/2022] [Indexed: 11/24/2022]
Abstract
Immunoglobulin G (IgG) is the predominant component in humoral immunity and the major effector of neutralizing heterogeneous antigens. Glycosylation, as excessive posttranscriptional modification, can modulate IgG immune function. Glycosylated IgG has been reported to correlate with tumor progression, presenting several characteristic modifications, including the core fucose, galactose, sialic acid, and the bisect N-acetylglucosamine (GlcNAc). Meanwhile, IgG glycosylation regulates tumor immunity involved in tumor progression and is thus a potential target. Herein, we summarized the research progression to provide novel insight into the application of IgG glycosylation in tumor diagnosis and treatment.
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Affiliation(s)
- Sen Yang
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ming Cui
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qiaofei Liu
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Quan Liao
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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6
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Moran AB, Gardner RA, Wuhrer M, Lageveen-Kammeijer GSM, Spencer DIR. Sialic Acid Derivatization of Fluorescently Labeled N-Glycans Allows Linkage Differentiation by Reversed-Phase Liquid Chromatography-Fluorescence Detection-Mass Spectrometry. Anal Chem 2022; 94:6639-6648. [PMID: 35482581 PMCID: PMC9096788 DOI: 10.1021/acs.analchem.1c02610] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Sialic acids have diverse biological roles, ranging from promoting up to preventing protein and cellular recognition in health and disease. The various functions of these monosaccharides are owed, in part, to linkage variants, and as a result, linkage-specific analysis of sialic acids is an important aspect of glycomic studies. This has been addressed by derivatization strategies using matrix-assisted laser desorption/ionization mass spectrometry (MS) or sialidase digestion arrays followed by liquid chromatography (LC)-MS. Despite this, these approaches are unable to simultaneously provide unambiguous assignment of sialic acid linkages and assess further isomeric glycan features within a single measurement. Thus, for the first time, we present the combination of procainamide fluorescent labeling with sialic acid linkage-specific derivatization via ethyl esterification and amidation for the analysis of released plasma N-glycans using reversed-phase (RP)LC-fluorescence detection (FD)-MS. As a result, α2,3- and α2,6-sialylated N-glycans, with the same mass prior to derivatization, are differentiated based on retention time, precursor mass, and fragmentation spectra, and additional sialylated isomers were also separated. Furthermore, improved glycan coverage and protocol precision were found via the novel application using a combined FD-MS quantification approach. Overall, this platform achieved unambiguous assignment of N-glycan sialic acid linkages within a single RPLC-FD-MS measurement, and by improving their retention on RPLC, this technique can be used for future investigations of released N-glycans as an additional or orthogonal method to current analytical approaches.
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Affiliation(s)
- Alan B Moran
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300 RC Leiden, The Netherlands.,Ludger Ltd., Culham Science Centre, OX14 3EB Abingdon, United Kingdom
| | - Richard A Gardner
- Ludger Ltd., Culham Science Centre, OX14 3EB Abingdon, United Kingdom
| | - Manfred Wuhrer
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300 RC Leiden, The Netherlands
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7
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Jezková P, Skřičková J, Wimmer G, Zelinková J, Zdráhal Z, Lattová E. Differentiation of Sialyl Linkages Using a Combination of Alkyl Esterification and Phenylhydrazine Derivatization: Application for N-Glycan Profiling in the Sera of Patients with Lung Cancer. Anal Chem 2022; 94:6736-6744. [PMID: 35471013 DOI: 10.1021/acs.analchem.2c00105] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Alterations in oligosaccharides and types of sialic acid (SA) attachments have been associated with different pathological states. Matrix-assisted laser desorption mass spectrometry (MS) is commonly used for glycosylation studies. However, native sialylated glycans are suppressed or not detected during MS experiments. Consequently, different approaches have been employed to neutralize the negative charge of the carboxyl group. In this study, we present the advantage of phenylhydrazine (PHN) labeling for the detection and efficient discrimination of SA linkages when this derivatization follows alkyl esterification. As expected, PHN-labeled sialylated oligosaccharides with the 2,6-linkage type can be easily recognized according to the additional shift in mass corresponding to the presence of a methyl or ethyl group. Surprisingly, oligosaccharides with the 2,3-linked SA residue instead of a lactone were detected carrying the second PHN unit. This was beneficial as no further processing after esterification was needed to stabilize the lactone form. Moreover, during tandem mass experiments, all modified glycans produced favorable fragmentation patterns with a coherent recognition of SA linkages. Although both types of esterification, herein called the EST-PHN approach, provided comparable results, methylation exhibited marginally higher linkage specificity than ethyl esterification. The simplicity and effectiveness of the methodology are demonstrated on the model compound, sialyllactose, and its applicability for biological studies is presented on N-glycan profiling in the sera of lung cancer patients.
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Affiliation(s)
- Petra Jezková
- Central European Institute for Technology, Masaryk University, 625 00 Brno, Czech Republic.,National Centre for Biomolecular Research, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic
| | - Jana Skřičková
- Department of Respiratory Diseases and TB, University Hospital, 625 00 Brno, Czech Republic
| | - Gejza Wimmer
- Institute of Measurement Science, Slovak Academy of Sciences, 841 04 Bratislava, Slovak Republic
| | - Jana Zelinková
- Central European Institute for Technology, Masaryk University, 625 00 Brno, Czech Republic
| | - Zbyněk Zdráhal
- Central European Institute for Technology, Masaryk University, 625 00 Brno, Czech Republic.,National Centre for Biomolecular Research, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic
| | - Erika Lattová
- Central European Institute for Technology, Masaryk University, 625 00 Brno, Czech Republic
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8
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Cheng M, Shu H, Yang M, Yan G, Zhang L, Wang L, Wang W, Lu H. Fast Discrimination of Sialylated N-Glycan Linkage Isomers with One-Step Derivatization by Microfluidic Capillary Electrophoresis-Mass Spectrometry. Anal Chem 2022; 94:4666-4676. [PMID: 35258917 DOI: 10.1021/acs.analchem.1c04760] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Linkage isomers (α-2,3- or α-2,6-linkage) of sialylated N-glycans are involved in the emergence and progression of some diseases, so they are of great significance for diagnosing and monitoring diseases. However, the qualitative and quantitative analysis of sialylated N-glycan linkage isomers remains challenging due to their low abundance and limited isomeric separation techniques. Herein, we developed a novel strategy integrating one-step sialic acid derivatization, positive charge-sensitive separation and highly sensitive detection based on microfluidic capillary electrophoresis-mass spectrometry (MCE-MS) for fast and specific analysis of α-2,3- and α-2,6-linked sialylated N-glycan isomers. A kind of easily charged long-chain amino compound was screened first for one-step sialic acid derivatization so that only α-2,3- and α-2,6-linked isomers can be quickly and efficiently separated within 10 min by MCE due to the difference in structural conformation, whose separation mechanism was further theoretically supported by molecular dynamic simulation. In addition, different sialylated N-glycans were separated in order according to the number of sialic acids, so that a migration time-based prediction of the number of sialic acids was achieved. Finally, the sialylated N-glycome of human serum was profiled within 10 min and 6 of the 52 detected sialylated N-glycans could be potential diagnostic biomarkers of cervical cancer (CC), whose α-2,3- and α-2,6-linked isomers were distinguished by α-2,3Neuraminidase S.
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Affiliation(s)
- Mengxia Cheng
- Department of Chemistry and Shanghai Cancer Center, Fudan University, Shanghai, 200032, People's Republic of China.,Institutes of Biomedical Sciences and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
| | - Hong Shu
- Department of Clinical Laboratory, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, People's Republic of China
| | - Maohua Yang
- Institutes of Biomedical Sciences and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
| | - Guoquan Yan
- Institutes of Biomedical Sciences and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
| | - Lei Zhang
- Institutes of Biomedical Sciences and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
| | - Liang Wang
- 908 Device Inc., Boston, Massachusetts 02210, United States
| | - Wenning Wang
- Department of Chemistry and Shanghai Cancer Center, Fudan University, Shanghai, 200032, People's Republic of China
| | - Haojie Lu
- Department of Chemistry and Shanghai Cancer Center, Fudan University, Shanghai, 200032, People's Republic of China.,Institutes of Biomedical Sciences and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
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9
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Yang Y, Lu Y, Liu Y, Pan Y, Ma H, Huang L, Wang Z. Comparative analysis of yak milk and bovine milk glycoprotein N/O-glycome by online HILIC-UV-ESI-MS/MS. Carbohydr Polym 2022; 278:118918. [PMID: 34973737 DOI: 10.1016/j.carbpol.2021.118918] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 11/14/2021] [Accepted: 11/16/2021] [Indexed: 11/02/2022]
Abstract
Yak milk (YM) has higher protein content than other bovine milk (BM) varieties. The bioactivity of milk glycoproteins is related to N/O-glycans. We qualitatively and quantitatively compared the N/O-glycome of YM and BM glycoproteins using stable isotope labeling combined with hydrophilic interaction chromatography and electrospray ionization mass spectrometry. We identified 79 and 78 N-glycans in YM and BM, respectively. Two N-glycans (H4N5F1A1; H5N4F1) were exclusive to YM. The content ratios of different types of N-glycans differed significantly between YM and BM, with sialylated N-glycans 2.33 times more abundant in YM. Five and seven O-glycans were detected in YM and BM, respectively. Two O-glycans (H1N2; H1N2A1) were exclusive to BM. The bi-sialylated O-glycan, H1N1A2, accounted for 56.1% of O-glycans in YM; it was 5.97 times more abundant in YM than in BM (equal volume basis). This study provides a theoretical basis for the future utilization of YM as a functional food.
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Affiliation(s)
- Yuerong Yang
- The College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Yu Lu
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Yinchuan Liu
- The College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Yu Pan
- The College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Hongjuan Ma
- The College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Linjuan Huang
- The College of Life Sciences, Northwest University, Xi'an 710069, China; Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China.
| | - Zhongfu Wang
- The College of Life Sciences, Northwest University, Xi'an 710069, China; Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China.
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10
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Feng X, Shu H, Zhang S, Peng Y, Zhang L, Cao X, Wei L, Lu H. Relative Quantification of N-Glycopeptide Sialic Acid Linkage Isomers by Ion Mobility Mass Spectrometry. Anal Chem 2021; 93:15617-15625. [PMID: 34779613 DOI: 10.1021/acs.analchem.1c02803] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Sialic acids decorate the surface of glycoproteins and play important roles in a variety of pathological processes. Although the mass spectrometry (MS) based linkage-specific analysis of sialylated N-glycopeptide is developing rapidly, quantitative analysis of these isomers still remains a challenge. Herein, we reported a novel quantitative strategy that can unambiguously identify and relatively quantify linkage-specific N-glycopeptides using ion mobility mass spectrometry (IM-MS). Without the assistance of derivatization, this method can relatively quantify sialic acid isomers of intact glycopeptides by using their characteristic fragment ions in IM-MS. Moreover, good linearity (R2 > 0.99) of relative quantification within a dynamic range of 2 orders of magnitude and high reproducibility (coefficient of variation (CV) < 10%, n = 3) were demonstrated. Finally, our results illustrated the aberrant sialylation of haptoglobin (Hp) in hepatocellular carcinoma (HCC), where the ratios of α2,3 to α2,6 sialylation of seven N-glycopeptides were found to be significantly altered (p < 0.01) in HCC individuals (n = 27) compared with healthy controls (n = 27).
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Affiliation(s)
- Xiaoxiao Feng
- Institutes of Biomedical Sciences & Shanghai Cancer Center, Fudan University, Shanghai 200032, People's Republic of China
| | - Hong Shu
- Department of Clinical Laboratory, Cancer Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Shu Zhang
- Liver Cancer Institute, Zhongshan Hospital, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Fudan University, Shanghai 200032, People's Republic of China
| | - Ye Peng
- Institutes of Biomedical Sciences & Shanghai Cancer Center, Fudan University, Shanghai 200032, People's Republic of China
| | - Lei Zhang
- Institutes of Biomedical Sciences & Shanghai Cancer Center, Fudan University, Shanghai 200032, People's Republic of China
| | - Xinyi Cao
- Institutes of Biomedical Sciences & Shanghai Cancer Center, Fudan University, Shanghai 200032, People's Republic of China
| | - Liming Wei
- Institutes of Biomedical Sciences & Shanghai Cancer Center, Fudan University, Shanghai 200032, People's Republic of China.,Department of Chemistry & NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
| | - Haojie Lu
- Institutes of Biomedical Sciences & Shanghai Cancer Center, Fudan University, Shanghai 200032, People's Republic of China.,Department of Chemistry & NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
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11
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PRM-MS Quantitative Analysis of Isomeric N-Glycopeptides Derived from Human Serum Haptoglobin of Patients with Cirrhosis and Hepatocellular Carcinoma. Metabolites 2021; 11:metabo11080563. [PMID: 34436504 PMCID: PMC8400780 DOI: 10.3390/metabo11080563] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 08/06/2021] [Accepted: 08/16/2021] [Indexed: 12/14/2022] Open
Abstract
Currently, surveillance strategies have inadequate performance for cirrhosis and early detection of hepatocellular carcinoma (HCC). The glycosylation of serum haptoglobin has shown to have significant differences between cirrhosis and HCC, thus can be used for diagnosis. We performed a comprehensive liquid chromatography—parallel reaction monitoring—mass spectrometry (LC-PRM-MS) approach, where a targeted parallel reaction monitoring (PRM) strategy was coupled to a powerful LC system, to study the site-specific isomerism of haptoglobin (Hp) extracted from cirrhosis and HCC patients. We found that our strategy was able to identify a large number of isomeric N-glycopeptides, mainly located in the Hp glycosylation site Asn207. Four N-glycopeptides were found to have significant changes in abundance between cirrhosis and HCC samples (p < 0.05). Strategic combinations of the significant N-glycopeptides, either with alpha-fetoprotein (AFP) or themselves, better estimate the areas under the curve (AUC) of their respective receiver operating characteristic (ROC) curves with respect to AFP. The combination of AFP with the isomeric sialylated fucosylated N-glycopeptides Asn207 + 5-6-1-2 and Asn207 + 5-6-1-3, resulted with an AUC value of 0.98, while the AUC value for AFP alone was 0.85. When comparing cirrhosis vs. early HCC, the isomeric N-glycopeptide Asn207 + 5-6-0-1 better estimated AUC with respect to AFP (AUCAFP = 0.81, and AUCAsn207 + 5-6-0-1 = 0.88, respectively).
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12
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StrucGP: de novo structural sequencing of site-specific N-glycan on glycoproteins using a modularization strategy. Nat Methods 2021; 18:921-929. [PMID: 34341581 DOI: 10.1038/s41592-021-01209-0] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 06/14/2021] [Indexed: 02/06/2023]
Abstract
Precision mapping of glycans at structural and site-specific level is still one of the most challenging tasks in the glycobiology field. Here, we describe a modularization strategy for de novo interpretation of N-glycan structures on intact glycopeptides using tandem mass spectrometry. An algorithm named StrucGP is also developed to automate the interpretation process for large-scale analysis. By dividing an N-glycan into three modules and identifying each module using distinct patterns of Y ions or a combination of distinguishable B/Y ions, the method enables determination of detailed glycan structures on thousands of glycosites in mouse brain, which comprise four types of core structure and 17 branch structures with three glycan subtypes. Owing to the database-independent glycan mapping strategy, StrucGP also facilitates the identification of rare/new glycan structures. The approach will be greatly beneficial for in-depth structural and functional study of glycoproteins in the biomedical research.
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13
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Jia Y, Lu Y, Wang X, Yang Y, Zou M, Liu J, Jin W, Wang X, Pang G, Huang L, Wang Z. Mass spectrometry based quantitative and qualitative analyses reveal N-glycan changes of bovine lactoferrin at different stages of lactation. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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14
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Cheng M, Shu H, Peng Y, Feng X, Yan G, Zhang L, Yao J, Bao H, Lu H. Specific Analysis of α-2,3-Sialylated N-Glycan Linkage Isomers by Microchip Capillary Electrophoresis-Mass Spectrometry. Anal Chem 2021; 93:5537-5546. [PMID: 33752328 DOI: 10.1021/acs.analchem.1c00064] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Sialylated N-glycan isomers with α-2,3 and α-2,6 linkages play crucial and distinctive roles in diverse physiological and pathological processes. Changes of α-2,3-linked sialic acids in sialylated N-glycans are especially important in monitoring the initiation and progression of diseases. However, the specific analysis of α-2,3-sialylated N-glycan linkage isomers remains challenging due to their extremely low abundance and technical limitations in separation and detection. Herein, we designed an integrated strategy that combines linkage-specific derivatization and a charge-sensitive separation method based on microfluidic chip capillary electrophoresis-mass spectrometry (microchip CE-MS) for specific analysis of α-2,3-sialylated N-glycan linkage isomers for the first time. The α-2,6- and α-2,3-sialic acids were selectively labeled with methylamine (MA) and N,N-dimethylethylenediamine (DMEN), respectively, which selectively makes α-2,3-sialylated N-glycans positively charged and realizes online purification, concentration, and discrimination of α-2,3-sialylated N-glycans from other N-glycans in microchip CE-MS. This new approach was demonstrated with standard multisialylated N-glycans, and it was found that only the α-2,3-sialylated N-glycans migrated and were detected in order according to the number of α-2,3-sialic acids. Finally, this strategy was successfully applied in highly sensitive profiling and reproducible quantitation of the serum α-2,3-sialylated N-glycome from ovarian cancer (OC) patients, where 7 of 33 detected α-2,3-sialylated N-glycans significantly changed in the OC group compared with healthy controls.
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Affiliation(s)
- Mengxia Cheng
- Department of Chemistry and Shanghai Cancer Center, Fudan University, Shanghai 200032, People's Republic of China.,Institutes of Biomedical Sciences and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
| | - Hong Shu
- Department of Clinical Laboratory, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, People's Republic of China
| | - Ye Peng
- Institutes of Biomedical Sciences and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
| | - Xiaoxiao Feng
- Institutes of Biomedical Sciences and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
| | - Guoquan Yan
- Institutes of Biomedical Sciences and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
| | - Lei Zhang
- Institutes of Biomedical Sciences and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
| | - Jun Yao
- Institutes of Biomedical Sciences and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
| | - Huimin Bao
- Department of Chemistry and Shanghai Cancer Center, Fudan University, Shanghai 200032, People's Republic of China
| | - Haojie Lu
- Department of Chemistry and Shanghai Cancer Center, Fudan University, Shanghai 200032, People's Republic of China.,Institutes of Biomedical Sciences and NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai 200032, People's Republic of China
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15
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Delafield DG, Li L. Recent Advances in Analytical Approaches for Glycan and Glycopeptide Quantitation. Mol Cell Proteomics 2021; 20:100054. [PMID: 32576592 PMCID: PMC8724918 DOI: 10.1074/mcp.r120.002095] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Indexed: 12/13/2022] Open
Abstract
Growing implications of glycosylation in physiological occurrences and human disease have prompted intensive focus on revealing glycomic perturbations through absolute and relative quantification. Empowered by seminal methodologies and increasing capacity for detection, identification, and characterization, the past decade has provided a significant increase in the number of suitable strategies for glycan and glycopeptide quantification. Mass-spectrometry-based strategies for glycomic quantitation have grown to include metabolic incorporation of stable isotopes, deposition of mass difference and mass defect isotopic labels, and isobaric chemical labeling, providing researchers with ample tools for accurate and robust quantitation. Beyond this, workflows have been designed to harness instrument capability for label-free quantification, and numerous software packages have been developed to facilitate reliable spectrum scoring. In this review, we present and highlight the most recent advances in chemical labeling and associated techniques for glycan and glycopeptide quantification.
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Affiliation(s)
- Daniel G Delafield
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Lingjun Li
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, USA; School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin, USA.
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16
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Li Y, Peng Y, Lu H. Advances in Analysis of Linkage Isomers of Sialylated N-Glycans by Mass Spectrometry. ACTA CHIMICA SINICA 2021. [DOI: 10.6023/a21020048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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17
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Gutierrez Reyes CD, Jiang P, Donohoo K, Atashi M, Mechref YS. Glycomics and glycoproteomics: Approaches to address isomeric separation of glycans and glycopeptides. J Sep Sci 2020; 44:403-425. [PMID: 33090644 DOI: 10.1002/jssc.202000878] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/29/2020] [Accepted: 10/06/2020] [Indexed: 11/11/2022]
Abstract
Changes in the glycome of human proteins and cells are associated with the progression of multiple diseases such as Alzheimer's, diabetes mellitus, many types of cancer, and those caused by viruses. Consequently, several studies have shown essential modifications to the isomeric glycan moieties for diseases in different stages. However, the elucidation of extensive isomeric glycan profiles remains challenging because of the lack of analytical techniques with sufficient resolution power to separate all glycan and glycopeptide iso-forms. Therefore, the development of sensitive and accurate approaches for the characterization of all the isomeric forms of glycans and glycopeptides is essential to tracking the progression of pathology in glycoprotein-related diseases. This review describes the isomeric separation achievements reported in glycomics and glycoproteomics in the last decade. It focuses on the mass spectrometry-based analytical strategies, stationary phases, and derivatization techniques that have been developed to enhance the separation mechanisms in liquid chromatography systems and the detection capabilities of mass spectrometry systems.
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Affiliation(s)
| | - Peilin Jiang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Kaitlyn Donohoo
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Mojgan Atashi
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Yehia S Mechref
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
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18
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Furukawa JI, Hanamatsu H, Nishikaze T, Manya H, Miura N, Yagi H, Yokota I, Akasaka-Manya K, Endo T, Kanagawa M, Iwasaki N, Tanaka K. Lactone-Driven Ester-to-Amide Derivatization for Sialic Acid Linkage-Specific Alkylamidation. Anal Chem 2020; 92:14383-14392. [DOI: 10.1021/acs.analchem.0c02209] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Jun-ichi Furukawa
- Department of Advanced Clinical Glycobiology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita21, Nishi11, Kita-ku, Sapporo 001-0021, Japan
| | - Hisatoshi Hanamatsu
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Kita15, Nishi7, Kita-ku, Sapporo 060-8638, Japan
| | - Takashi Nishikaze
- Koichi Tanaka Mass Spectrometry Research Laboratory, Shimadzu Corporation, 1, Nishinokyo-Kuwabaracho, Nakagyo-ku, Kyoto 604-8511, Japan
| | - Hiroshi Manya
- Molecular Glycobiology, Research Team for Mechanism of Aging, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Nobuaki Miura
- Division of Bioinformatics, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata 951-8510, Japan
| | - Hirokazu Yagi
- Graduate School of Pharmaceutical Sciences, Nagoya City University,3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan
| | - Ikuko Yokota
- Department of Advanced Clinical Glycobiology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita21, Nishi11, Kita-ku, Sapporo 001-0021, Japan
| | - Keiko Akasaka-Manya
- Molecular Glycobiology, Research Team for Mechanism of Aging, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Tamao Endo
- Molecular Glycobiology, Research Team for Mechanism of Aging, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Motoi Kanagawa
- Department of Cell Biology and Molecular Medicine, Ehime University Graduate School of Medicine, Shitsukawa 454, Toon, Ehime 791-0295, Japan
- Division of Molecular Brain Science, Kobe University Graduate School of Medicine, Kusunoki-cho 7-5-1, Chuo-ku, Kobe, Hyogo 650-0017, Japan
| | - Norimasa Iwasaki
- Department of Advanced Clinical Glycobiology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita21, Nishi11, Kita-ku, Sapporo 001-0021, Japan
| | - Koichi Tanaka
- Koichi Tanaka Mass Spectrometry Research Laboratory, Shimadzu Corporation, 1, Nishinokyo-Kuwabaracho, Nakagyo-ku, Kyoto 604-8511, Japan
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19
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Wei M, Huang L, Liu Y, Jin W, Yao X, Rong J, Bai F, Song X, Wang Z. Strategy for Isolation, Preparation, and Structural Analysis of Chondroitin Sulfate Oligosaccharides from Natural Sources. Anal Chem 2020; 92:11644-11653. [PMID: 32709191 DOI: 10.1021/acs.analchem.0c01410] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The structure of chondroitin sulfate oligosaccharides (CSOs), especially their sulfation pattern, has been found to be closely related with many biological pathways and diseases. However, detailed functional analysis such as their interaction with glycan binding proteins (GBPs) has been lagging, presumably due to the unavailability of well-defined, diverse structures. Besides challenging chemical and enzymatic synthesis, this is also due to the challenges in their purification at the isomer level and structural analysis owing to their instability, structural complexity, and low mass spectrometry detection sensitivity. Herein, we first used recycling preparative HPLC to separate and purify shark CS tetrasaccharide component labeled by a bifunctional fluorescent linker 2-amino-N-(2-aminoethyl)benzamide (AEAB) at the isomer level. Then, each isomer was derivatized through a multistage procedure including N-acetylation, carboxyl amidation, permethylation, and desulfation with silylating reagent. Structural analysis of each derivatized isomer was performed with ESI-MSn in positive ion mode. A total of 16 isomers of CSO-AEAB were isolated, with a minimum mass component of 0.007 mg and a maximum mass component of 17.53 mg, of which 10 isomers (>90 μg) were structurally analyzed. This preparation and structure analysis of CSOs lay the foundation for further study of the structure-activity relationship of CSOs.
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Affiliation(s)
- Ming Wei
- College of Life Science, Northwest University, Xi'an 710069, China
| | - Linjuan Huang
- College of Life Science, Northwest University, Xi'an 710069, China.,Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Yuxia Liu
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Wanjun Jin
- College of Life Science, Northwest University, Xi'an 710069, China
| | - Xinbo Yao
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Jinqiao Rong
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Fan Bai
- Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Xuezheng Song
- Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Zhongfu Wang
- College of Life Science, Northwest University, Xi'an 710069, China.,Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
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20
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Jin W, Li C, Zou M, Lu Y, Wei M, Nan L, Jia Y, Wang C, Huang L, Wang Z. A preliminary study on isomer-specific quantification of sialylated N-glycans released from whey glycoproteins in human colostrum and mature milk using a glycoqueuing strategy. Food Chem 2020; 339:127866. [PMID: 32858386 DOI: 10.1016/j.foodchem.2020.127866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 08/11/2020] [Accepted: 08/15/2020] [Indexed: 11/19/2022]
Abstract
Sialylated N-glycans are an integral component of whey proteins in human milk and play an irreplaceable role in infant growth and development. Currently, there are few studies on quantitative comparison of sialylated N-glycans in milk obtained at different lactation stages. Here, a preliminary isomer-specific quantification of whey sialylated N-glycans of human colostrum milk (CM) and mature milk (MM) was performed by using our recently developed glycoqueuing strategy. Such a preliminary comparison revealed that the whey sialylated N-glycan content was 86.4% lower in MM than in CM. Twenty-three α2,6-linked sialylated N-glycan isomers were detected with no α2,3-linked isomer observed. For the first time, three mono-sialylated and four bi-sialylated glycan isomers were reported. With the prolongation of lactation, the relative abundance of mono-sialylated glycans increased, whilst the relative abundance of bi-sialylated glycans decreased significantly. These findings contribute to the understanding of the structure-function relationship of sialylated N-glycans in the human whey fraction.
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Affiliation(s)
- Wanjun Jin
- College of Life Science, Northwest University, Xi'an 710069, China
| | - Cheng Li
- Shannxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Meiyi Zou
- College of Life Science, Northwest University, Xi'an 710069, China
| | - Yu Lu
- College of Life Science, Northwest University, Xi'an 710069, China
| | - Ming Wei
- College of Life Science, Northwest University, Xi'an 710069, China
| | - Lijing Nan
- College of Life Science, Northwest University, Xi'an 710069, China
| | - Yue Jia
- College of Life Science, Northwest University, Xi'an 710069, China
| | - Chengjian Wang
- Shannxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Linjuan Huang
- College of Life Science, Northwest University, Xi'an 710069, China; Shannxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China.
| | - Zhongfu Wang
- College of Life Science, Northwest University, Xi'an 710069, China; Shannxi Natural Carbohydrate Resource Utilization Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China.
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21
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Cao WQ, Liu MQ, Kong SY, Wu MX, Huang ZZ, Yang PY. Novel methods in glycomics: a 2019 update. Expert Rev Proteomics 2020; 17:11-25. [PMID: 31914820 DOI: 10.1080/14789450.2020.1708199] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Introduction: Glycomics, which aims to define the glycome of a biological system to better assess the biological attributes of the glycans, has attracted increasing interest. However, the complexity and diversity of glycans present challenging barriers to glycome definition. Technological advances are major drivers in glycomics.Areas covered: This review summarizes the main methods and emphasizes the most recent advances in mass spectrometry-based methods regarding glycomics following the general workflow in glycomic analysis.Expert opinion: Recent mass spectrometry-based technological advances have significantly lowered the barriers in glycomics. The field of glycomics is moving toward both generic and precise analysis.
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Affiliation(s)
- Wei-Qian Cao
- Shanghai Fifth People's Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai, China
| | - Ming-Qi Liu
- Shanghai Fifth People's Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Si-Yuan Kong
- Shanghai Fifth People's Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Meng-Xi Wu
- Shanghai Fifth People's Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Department of Chemistry, Fudan University, Shanghai, China
| | - Zheng-Ze Huang
- Shanghai Fifth People's Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Peng-Yuan Yang
- Shanghai Fifth People's Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,NHC Key Laboratory of Glycoconjugates Research, Fudan University, Shanghai, China.,Department of Chemistry, Fudan University, Shanghai, China
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Peng Y, Wang L, Zhang Y, Bao H, Lu H. Stable Isotope Sequential Derivatization for Linkage-Specific Analysis of Sialylated N-Glycan Isomers by MS. Anal Chem 2019; 91:15993-16001. [PMID: 31730330 DOI: 10.1021/acs.analchem.9b04727] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Sialylated N-glycans play pivotal role in several important biological and pathological processes. Their sialyl-linkage isomers, mostly α-2,3- and α-2,6-linked, act differently during the cellular events and several diseases. While mass spectrometry (MS) technology is a powerful tool in N-glycome analysis, it still suffers from an inability to distinguish linkage isomers of native N-glycans. Herein, we described a sequential selective derivatization method, by which α-2,6- and α-2,3-linked sialic acids are sequentially labeled with methylamide incorporated with a different stable isotope. Isobaric labeling avoids inducing bias in ionization efficiency and chromatographic behavior. In optimized reaction conditions, high derivatization selectivity (∼99%) was achieved for both α-2,3- and α-2,6-linked sialic acid. High accuracy of quantitation within a dynamic range of 2 orders of magnitude and high reproducibility (CV < 20%, n = 3) were demonstrated using standard glycans and multisialylated N-glycans. Finally, this method was applied in profiling the N-glycome of serum from CRC patients, where a level of six sialyl-linkage isomers were found to be altered significantly compared with that from healthy individuals.
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