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Seo N, Jo HY, Lee SG, Kim HJ, Oh MJ, Kim YS, Ro S, Jeon YJ, An HJ. An enhanced LC-MRM-MS platform for sensitive and simultaneous quantification of cyclic imines in shellfish. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1229:123883. [PMID: 37716343 DOI: 10.1016/j.jchromb.2023.123883] [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: 05/31/2023] [Revised: 07/23/2023] [Accepted: 09/05/2023] [Indexed: 09/18/2023]
Abstract
Cyclic imines (CIs) produced by microalgae species and accumulating in the food chain of marine organisms are novel biotoxins that do not belong to the classical group of marine biotoxins. In the past, CIs were found only in limited areas, but in recent years, rapid changes in marine ecosystems have led to widespread CIs, increasing exposure to toxic risks. Monitoring of CIs is therefore required, but still analytically challenging due to the presence of high levels of analogues and interference from other lipophilic substances. Herein, we developed the LC/MRM-MS-based quantitative platform that can selectively enrich for marine-derived CIs and monitor seven CIs simultaneously: pinnatoxin (PnTX E, PnTX F, PnTX G), gymnodimine (GYM A), and spirolide (13-desMe SPX C, 13,19-didesMe SPX C, 20-Me SPX G). In particular, the combination of chromatographic separation by the hydrophobic nature of intrinsic residues of CIs with monitoring of CI structure-specific product ions generated by CID-MS/MS significantly improves the selectivity and sensitivity for quantitative analysis. Indeed, three CIs corresponding to PnTX G, GYM A, and 13-desMe SPX C could be successfully determined at the level of part-per-trillion (ppt) in three species of shellfish collected around the Korean Peninsula. Our analysis revealed that the expression of CIs in the Korean Peninsula was more influenced by the season rather than the species. This analytical platform with high sensitivity can be applied not only to marine biology but also to various other fields requiring CI analysis. Key Contribution: A highly sensitive analytical method for the simultaneous quantitation of cyclic imines based on LC/MRM-MS has been developed.
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Affiliation(s)
- Nari Seo
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 34134, Republic of Korea; Asia Glycomics Reference Site, Daejeon, 34134, Republic of Korea
| | - Hee Young Jo
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 34134, Republic of Korea; Asia Glycomics Reference Site, Daejeon, 34134, Republic of Korea
| | - Sang Gil Lee
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 34134, Republic of Korea; Asia Glycomics Reference Site, Daejeon, 34134, Republic of Korea
| | - Hong Ju Kim
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 34134, Republic of Korea; Asia Glycomics Reference Site, Daejeon, 34134, Republic of Korea
| | - Myung Jin Oh
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 34134, Republic of Korea; Asia Glycomics Reference Site, Daejeon, 34134, Republic of Korea
| | - Young Sang Kim
- Department of Marine Life Sciences, Jeju National University, Jeju Special Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Special Self-Governing Province, 63333, Republic of Korea
| | - Sunil Ro
- Department of Life Science, Merck Ltd. Korea, Seoul, 06178, Republic of Korea
| | - You Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju Special Self-Governing Province, 63243, Republic of Korea.
| | - Hyun Joo An
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 34134, Republic of Korea; Asia Glycomics Reference Site, Daejeon, 34134, Republic of Korea.
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2
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Kim YG, Yun JH, Park JW, Seong D, Lee SH, Park KD, Lee HA, Park M. Effect of Xenogeneic Substances on the Glycan Profiles and Electrophysiological Properties of Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes. Int J Stem Cells 2023; 16:281-292. [PMID: 37105557 PMCID: PMC10465332 DOI: 10.15283/ijsc22158] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 12/30/2022] [Accepted: 02/12/2023] [Indexed: 04/29/2023] Open
Abstract
Background and Objectives Human induced pluripotent stem cell (hiPSC)-derived cardiomyocyte (CM) hold great promise as a cellular source of CM for cardiac function restoration in ischemic heart disease. However, the use of animal-derived xenogeneic substances during the biomanufacturing of hiPSC-CM can induce inadvertent immune responses or chronic inflammation, followed by tumorigenicity. In this study, we aimed to reveal the effects of xenogeneic substances on the functional properties and potential immunogenicity of hiPSC-CM during differentiation, demonstrating the quality and safety of hiPSC-based cell therapy. Methods and Results We successfully generated hiPSC-CM in the presence and absence of xenogeneic substances (xeno-containing (XC) and xeno-free (XF) conditions, respectively), and compared their characteristics, including the contractile functions and glycan profiles. Compared to XC-hiPSC-CM, XF-hiPSC-CM showed early onset of myocyte contractile beating and maturation, with a high expression of cardiac lineage-specific genes (ACTC1, TNNT2, and RYR2) by using MEA and RT-qPCR. We quantified N-glycolylneuraminic acid (Neu5Gc), a xenogeneic sialic acid, in hiPSC-CM using an indirect enzyme-linked immunosorbent assay and liquid chromatography-multiple reaction monitoring- mass spectrometry. Neu5Gc was incorporated into the glycans of hiPSC-CM during xeno-containing differentiation, whereas it was barely detected in XF-hiPSC-CM. Conclusions To the best of our knowledge, this is the first study to show that the electrophysiological function and glycan profiles of hiPSC-CM can be affected by the presence of xenogeneic substances during their differentiation and maturation. To ensure quality control and safety in hiPSC-based cell therapy, xenogeneic substances should be excluded from the biomanufacturing process.
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Affiliation(s)
- Yong Guk Kim
- Advanced Bioconvergence Product Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Jun Ho Yun
- Advanced Bioconvergence Product Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Ji Won Park
- Advanced Bioconvergence Product Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Dabin Seong
- Advanced Bioconvergence Product Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Su-hae Lee
- Advanced Bioconvergence Product Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Ki Dae Park
- Advanced Bioconvergence Product Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Hyang-Ae Lee
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon, Korea
| | - Misun Park
- Advanced Bioconvergence Product Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
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3
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Li Y, Guo W, Zhang Q, Yang B, Zhang Y, Yang Y, Liu G, Pan L, Zhang W, Kong D. Improved analysis ZIC-HILIC-HCD-Orbitrap method for mapping the glycopeptide by mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1228:123852. [PMID: 37633008 DOI: 10.1016/j.jchromb.2023.123852] [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: 05/29/2023] [Revised: 07/29/2023] [Accepted: 08/15/2023] [Indexed: 08/28/2023]
Abstract
Glycosylation is one of the most common post-translational modifications (PTMs). Protein glycosylation analysis is the bottleneck to deeply understand their functions. At present, the LC-MS analysis of glycosylated post-translational modification is mainly focused on the analysis of glycopeptides. However, the factors affecting the identification of glycopeptides were not fully elucidated. In the paper, we have carefully studied the factors, e.g., HILIC materials, search engines, protein amount, gradient duration, extraction solution, etc. According to the results, HILIC materials were the most important factors affecting the glycopeptides identification, and the amphoteric sulfoalkyl betaine stationary phase enriched glycopeptides 6-fold more compared to the amphiphilic ion-bonded fully porous spherical silica stationary phase. We explored the influence of the extraction solutions on glycan identification. Comparing sodium dodecyl sulfate (SDS) and urea (UA), the results showed that N-glycolylneuraminic acid (NeuGc) type of glycan content was found to be increased 1.4-fold in the SDS compared to UA. Besides, we explored the influence of the search engine on glycopeptide identification. Comparing pGlyco3.0 and MSFragger-Glyco, it was observed that pGlyco3.0 outperformed MSFragger-Glyco in identifying glycopeptides. Then, using our optimized method we found that there was a significant difference in the distribution of monosaccharide types in plasma and brain tissue, e.g., the content of NeuAc in brain was 5-fold higher than that in plasma. To importantly, two glycoproteins (Neurexin-2 and SUN domain-containing protein 2) were also found for the first time by our method. In summary, we have comprehensively studied the factors influencing glycopeptide identification than any previous research, and the optimized method could be widely used for identifying the glycoproteins or glycolpeptides biomarkers for disease detection and therapeutic targets.
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Affiliation(s)
- Yahui Li
- Department of Pharmacology of Chinese Materia Medica, Institution of Chinese Integrative Medicine, School of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, China
| | - Wenyan Guo
- Department of Pharmacology of Chinese Materia Medica, Institution of Chinese Integrative Medicine, School of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, China
| | - Qingning Zhang
- Department of Pharmacology of Chinese Materia Medica, Institution of Chinese Integrative Medicine, School of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, China
| | - Bingkun Yang
- Department of Pharmacology of Chinese Materia Medica, Institution of Chinese Integrative Medicine, School of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, China; School of Pharmacy, Hebei Medical University, Shijiazhuang, China
| | - Yuyu Zhang
- Department of Pharmacology of Chinese Materia Medica, Institution of Chinese Integrative Medicine, School of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, China
| | - Yi Yang
- Department of Pharmacology of Chinese Materia Medica, Institution of Chinese Integrative Medicine, School of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, China; The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Guangyuan Liu
- Department of Pharmacology of Chinese Materia Medica, Institution of Chinese Integrative Medicine, School of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, China
| | - Liangyu Pan
- Department of Pharmacology of Chinese Materia Medica, Institution of Chinese Integrative Medicine, School of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, China
| | - Wei Zhang
- Department of Pharmacology of Chinese Materia Medica, Institution of Chinese Integrative Medicine, School of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, China.
| | - Dezhi Kong
- Department of Pharmacology of Chinese Materia Medica, Institution of Chinese Integrative Medicine, School of Chinese Integrative Medicine, Hebei Medical University, Shijiazhuang, China.
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4
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Bai R, Wang J, Brockhausen I, Gao Y. The generation of 5-N-glycolylneuraminic acid as a consequence of high levels of reactive oxygen species. Glycoconj J 2023; 40:435-448. [PMID: 37266899 DOI: 10.1007/s10719-023-10121-y] [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: 12/13/2022] [Revised: 04/12/2023] [Accepted: 05/09/2023] [Indexed: 06/03/2023]
Abstract
The presence of N-glycolylneuraminic acid (Neu5Gc), a non-human sialic acid in cancer patients, is currently attributed to the consumption of red meat. Excess dietary red meat has been considered a risk factor causing chronic inflammation and for the development of cancers. However, it remains unknown whether Neu5Gc can be generated via a chemical reaction rather than via a metabolic pathway in the presence of high levels of reactive oxygen species (ROS) found in the inflammatory and tumor environments. In this study, the conversion of N-acetylneuraminic acid (Neu5Ac) to Neu5Gc has been assessed in vitro under conditions mimicking the hydroxyl radical-rich humoral environment found in inflammatory and cancerous tissues. As a result, Neu5Gc has been detected via liquid chromatography-multiple reaction monitoring mass spectrometry. Furthermore, this conversion has also been found to take place in serum biomatrix containing ROS and in cancer cell cultures with induced ROS production.
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Affiliation(s)
- Ruifeng Bai
- Key laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, 130012, China
| | - Jingyi Wang
- Key laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, 130012, China
| | - Inka Brockhausen
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Yin Gao
- Key laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, 130012, China.
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5
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Wang J, Shewell LK, Day CJ, Jennings MP. N-glycolylneuraminic acid as a carbohydrate cancer biomarker. Transl Oncol 2023; 31:101643. [PMID: 36805917 PMCID: PMC9971276 DOI: 10.1016/j.tranon.2023.101643] [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: 10/19/2022] [Revised: 01/31/2023] [Accepted: 02/11/2023] [Indexed: 02/20/2023] Open
Abstract
One of the forms of aberrant glycosylation in human tumors is the expression of N-glycolylneuraminic acid (Neu5Gc). The only known enzyme to biosynthesize Neu5Gc in mammals, cytidine-5'-monophosphate-N-acetylneuraminic acid (CMAH), appears to be genetically inactivated in humans. Regardless, low levels of Neu5Gc have been detected in healthy humans. Therefore, it is proposed that the presence of Neu5Gc in humans is from dietary acquisition, such as red meat. Notably, detection of elevated Neu5Gc levels has been repeatedly found in cancer tissues, cells and serum samples, thereby Neu5Gc-containing antigens may be exploited as a class of cancer biomarkers. Here we review the findings to date on using Neu5Gc-containing tumor glycoconjugates as a class of cancer biomarkers for cancer detection, surveillance, prognosis and therapeutic targets. We review the evidence that supports an emerging hypothesis of de novo Neu5Gc biosynthesis in human cancer cells as a source of Neu5Gc in human tumors, generated under certain metabolic conditions.
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Affiliation(s)
- Jing Wang
- Institute for Glycomics, Griffith University, Gold Coast, Australia
| | - Lucy K Shewell
- Institute for Glycomics, Griffith University, Gold Coast, Australia
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6
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La Rocca P, Lavota I, Piccoli M, Cirillo F, Ghiroldi A, Ciconte G, Pappone C, Allevi P, Rota P, Anastasia L. Analysis of the intramolecular 1,7-lactone of N-acetylneuraminic acid using HPLC-MS: relationship between detection and stability. Glycoconj J 2023; 40:343-354. [PMID: 37084126 DOI: 10.1007/s10719-023-10114-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 03/30/2023] [Indexed: 04/22/2023]
Abstract
A subclass of the sialic acid family consists of intramolecular lactones that may function as key indicators of physiological and pathological states. However, the existence of these compounds in free form is highly improbable, since they are unlikely to exist in an aqueous solution due to their lability. Current analytical method used to detect them in biological fluids has not recognized their reactivity in solution and is prone to misidentification. However, recent advances in synthetic methods for 1,7-lactones have allowed the preparation of these sialic acid derivatives as authentic reference standards. We report here the development of a new HPLC-MS method for the simultaneous detection of the 1,7-lactone of N-acetylneuraminic acid, its γ-lactone derivative, and N-acetylneuraminic acid that overcomes the limitations of the previous analytical procedure for their identification.
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Affiliation(s)
- Paolo La Rocca
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, 20133, Italy
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy
| | - Ivana Lavota
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy
| | - Marco Piccoli
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy
- Laboratory of Stem Cells for Tissue Engineering, IRCCS Policlinico San Donato, San Donato Milanese, Milan, 20097, Italy
| | - Federica Cirillo
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy
- Laboratory of Stem Cells for Tissue Engineering, IRCCS Policlinico San Donato, San Donato Milanese, Milan, 20097, Italy
| | - Andrea Ghiroldi
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy
- Laboratory of Stem Cells for Tissue Engineering, IRCCS Policlinico San Donato, San Donato Milanese, Milan, 20097, Italy
| | - Giuseppe Ciconte
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy
- Arrhythmology Department, IRCCS Policlinico San Donato, San Donato Milanese, Milan, 20097, Italy
| | - Carlo Pappone
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy
- Arrhythmology Department, IRCCS Policlinico San Donato, San Donato Milanese, Milan, 20097, Italy
- Faculty of Medicine, University of Vita-Salute San Raffaele, 20132, Milan, Italy
| | - Pietro Allevi
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milan, 20133, Italy
| | - Paola Rota
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy.
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milan, 20133, Italy.
| | - Luigi Anastasia
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy.
- Laboratory of Stem Cells for Tissue Engineering, IRCCS Policlinico San Donato, San Donato Milanese, Milan, 20097, Italy.
- Faculty of Medicine, University of Vita-Salute San Raffaele, 20132, Milan, Italy.
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7
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Teng H, Li Q, Gou M, Liu G, Cao X, Lu J, Han Y, Yu Y, Gao Z, Song X, Dong W, Pang Y. Lamprey immunity protein enables early detection and recurrence monitoring for bladder cancer through recognizing Neu5Gc-modified uromodulin glycoprotein in urine. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166493. [PMID: 35853560 DOI: 10.1016/j.bbadis.2022.166493] [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: 12/21/2021] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 11/20/2022]
Abstract
The clinical management of bladder cancer (BCa) is hindered by the lack of reliable biomarkers. We aimed to investigate the potential of lamprey immunity protein (LIP), a lectin that specifically binds to multi-antennary sialylated N-glycolylneuraminic acid (Neu5Gc) structures on UMOD glycoproteins in the urine of BCa patients. Primary BCa patients had higher levels of LIP-bound Neu5Gc in urine than healthy participants and patients receiving postoperative treatment did. In addition, lectin chip assay and mass spectrometry were used to analyze the glycan chain structure, which can recognize the UMOD glycoprotein decorated with multi-antennary sialylated Neu5Gc structures. Furthermore, compared with urine samples from healthy patients (N = 2821, T/C = 0.12 ± 0.09) or benign patients (N = 360, T/C = 0.11 ± 0.08), the range of the urine T/C ratio detected using LIP test paper was 1.97 ± 0.32 in patients with bladder cancer (N = 518) with significant difference (P < 0.0001). Our results indicate that LIP may be a tool for early BCa identification, diagnosis, and monitoring. Neu5Gc-modified UMOD glycoproteins in urine and Neu5Gc-modified N-glycochains and sialyltransferases may function as potential markers in clinical trials.
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Affiliation(s)
- Hongming Teng
- College of Life Science, Liaoning Normal University, Dalian, Liaoning, China
| | - Qingwei Li
- College of Life Science, Liaoning Normal University, Dalian, Liaoning, China
| | - Meng Gou
- College of Life Science, Liaoning Normal University, Dalian, Liaoning, China
| | - Gang Liu
- College of Basic Medical Sciences, Dalian Medical University, Dalian, Liaoning, China
| | - Xu Cao
- College of Life Science, Liaoning Normal University, Dalian, Liaoning, China
| | - Jiali Lu
- College of Life Science, Liaoning Normal University, Dalian, Liaoning, China
| | - Yinglun Han
- College of Life Science, Liaoning Normal University, Dalian, Liaoning, China
| | - Yang Yu
- Department of Urology, The Second Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Zhanfeng Gao
- Department of Urology, Dalian Municipal Central Hospital affiliated to Dalian Medical University, Dalian, China
| | - Xiaoping Song
- Respiratory Medicine, Affiliated Zhong shan Hospital of Dalian University, Dalian, China
| | - Weijie Dong
- College of Basic Medical Sciences, Dalian Medical University, Dalian, Liaoning, China.
| | - Yue Pang
- College of Life Science, Liaoning Normal University, Dalian, Liaoning, China.
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8
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Cheng L, Yang F, Tang L, Qian L, Chen X, Guan F, Zhang J, Li G. Electrochemical Evaluation of Tumor Development via Cellular Interface Supported CRISPR/Cas Trans-Cleavage. RESEARCH 2022; 2022:9826484. [PMID: 35474904 PMCID: PMC9011167 DOI: 10.34133/2022/9826484] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 03/14/2022] [Indexed: 11/06/2022]
Abstract
Evaluating tumor development is of great importance for clinic treatment and therapy. It has been known that the amounts of sialic acids on tumor cell membrane surface are closely associated with the degree of cancerization of the cell. So, in this work, cellular interface supported CRISPR/Cas trans-cleavage has been explored for electrochemical simultaneous detection of two types of sialic acids, i.e., N-glycolylneuraminic acid (Neu5Gc) and N-acetylneuraminic acid (Neu5Ac). Specifically, PbS quantum dot-labeled DNA modified by Neu5Gc antibody is prepared to specifically recognize Neu5Gc on the cell surface, followed by the binding of Neu5Ac through our fabricated CdS quantum dot-labeled DNA modified by Sambucus nigra agglutinin. Subsequently, the activated Cas12a indiscriminately cleaves DNA, resulting in the release of PbS and CdS quantum dots, both of which can be simultaneously detected by anodic stripping voltammetry. Consequently, Neu5Gc and Neu5Ac on cell surface can be quantitatively analyzed with the lowest detection limits of 1.12 cells/mL and 1.25 cells/mL, respectively. Therefore, a ratiometric electrochemical method can be constructed for kinetic study of the expression and hydrolysis of Neu5Gc and Neu5Ac on cell surface, which can be further used as a tool to identify bladder cancer cells at different development stages. Our method to evaluate tumor development is simple and easy to be operated, so it can be potentially applied for the detection of tumor occurrence and development in the future.
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Affiliation(s)
- Liangfen Cheng
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Fuhan Yang
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Longfei Tang
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Lelin Qian
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Xu Chen
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Feng Guan
- College of Life Science, Northwest University, Xi’an 710127, China
| | - Juan Zhang
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Genxi Li
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences, Department of Biochemistry, Nanjing University, Nanjing 210093, China
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9
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Seo N, Lee H, Oh MJ, Kim GH, Lee SG, Ahn JK, Cha HS, Kim KH, Kim J, An HJ. Isomer-Specific Monitoring of Sialylated N-Glycans Reveals Association of α2,3-Linked Sialic Acid Epitope With Behcet's Disease. Front Mol Biosci 2021; 8:778851. [PMID: 34888356 PMCID: PMC8650305 DOI: 10.3389/fmolb.2021.778851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 11/01/2021] [Indexed: 12/04/2022] Open
Abstract
Behcet’s disease (BD) is an immune disease characterized by chronic and relapsing systemic vasculitis of unknown etiology, which can lead to blindness and even death. Despite continuous efforts to discover biomarkers for accurate and rapid diagnosis and optimal treatment of BD, there is still no signature marker with high sensitivity and high specificity. As the link between glycosylation and the immune system has been revealed, research on the immunological function of glycans is being actively conducted. In particular, sialic acids at the terminus of glycoconjugates are directly implicated in immune responses, cell–cell/pathogen interactions, and tumor progression. Therefore, changes in sialic acid epitope in the human body are spotlighted as a new indicator to monitor the onset and progression of immune diseases. Here, we performed global profiling of N-glycan compositions derived from the sera of 47 healthy donors and 47 BD patients using matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS) to preferentially determine BD target glycans. Then, three sialylated biantennary N-glycans were further subjected to the separation of linkage isomers and quantification using porous graphitized carbon-liquid chromatography (PGC-LC)/multiple reaction monitoring (MRM)-MS. We were able to successfully identify 11 isomers with sialic acid epitopes from the three glycan compositions consisting of Hex5HexNAc4NeuAc1, Hex5HexNAc4Fuc1NeuAc1, and Hex5HexNAc4NeuAc2. Among them, three isomers almost completely distinguished BD from control with high sensitivity and specificity with an area under the curve (AUC) of 0.945, suggesting the potential as novel BD biomarkers. In particular, it was confirmed that α2,3-sialic acid at the terminus of biantennary N-glycan was the epitope associated with BD. In this study, we present a novel approach to elucidating the association between BD and glycosylation by tracing isomeric structures containing sialic acid epitopes. Isomer-specific glycan profiling is suitable for analysis of large clinical cohorts and may facilitate the introduction of diagnostic assays for other immune diseases.
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Affiliation(s)
- Nari Seo
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, South Korea.,Asia Glycomics Reference Site, Daejeon, South Korea
| | - Hyunjun Lee
- Department of Food and Nutrition, Chungnam National University, Daejeon, South Korea
| | - Myung Jin Oh
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, South Korea.,Asia Glycomics Reference Site, Daejeon, South Korea
| | - Ga Hyeon Kim
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, South Korea.,Asia Glycomics Reference Site, Daejeon, South Korea
| | - Sang Gil Lee
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, South Korea.,Asia Glycomics Reference Site, Daejeon, South Korea
| | - Joong Kyong Ahn
- Division of Rheumatology, Department of International Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Hoon-Suk Cha
- Division of Rheumatology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Kyoung Heon Kim
- Department of Biotechnology, Graduate School, Korea University, Seoul, South Korea
| | - Jaehan Kim
- Department of Food and Nutrition, Chungnam National University, Daejeon, South Korea
| | - Hyun Joo An
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, South Korea.,Asia Glycomics Reference Site, Daejeon, South Korea
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