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Wang X, Pei J, Hao D, Zhang Y, Liao Y, Wang Q, Fan J, Huang L, Wang Z. Online PGC-LC-ESI-MS/MS comparative analysis of variations in human milk O-glycopatterns from different secretor status. Carbohydr Polym 2023; 315:121004. [PMID: 37230641 DOI: 10.1016/j.carbpol.2023.121004] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/22/2023] [Accepted: 05/08/2023] [Indexed: 05/27/2023]
Abstract
O-glycome is one of the important components of glycoconjugates in human milk which is speculated to provide protective features similar to those observed in free oligosaccharides. The effects of maternal secretor status on free oligosaccharides and N-glycome in milk have been well researched and documented. Currently, milk O-glycome of secretors (Se+) and nonsecretors (Se-) was investigated through reductive β-elimination combined with porous graphitized carbon-liquid chromatography-electrospray ionization-tandem mass spectrometry. A total of 70 presumptive O-glycan structures were identified, of which 25 O-glycans (including 14 sulfated O-glycans) were reported for the first time. Notably, 23 O-glycans exhibited significant differences between Se+ and Se- samples (p < 0.05). Compared to Se- group, the O-glycans of the Se+ group was two times more abundant in the total glycosylation, sialylation, fucosylation, and sulfation (p < 0.01). In conclusion, approximately one-third of the milk O-glycosylation was influenced by maternal FUT2-related secretor status. Our data will lay a foundation for the study of O-glycans structure-function relationship.
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Affiliation(s)
- Xiaoqin Wang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Jiahuan Pei
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Daokuan Hao
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Yuyang Zhang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Yujie Liao
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Qingling Wang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Jiangbo Fan
- The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Linjuan Huang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China.
| | - Zhongfu Wang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China.
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2
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Zhou Q, Alvarez MRS, Solakyildirim K, Tena J, Serrano LMN, Lam M, Nguyen C, Tobias F, Hummon AB, Nacario RC, Lebrilla CB. Multi-glycomic analysis of spheroid glycocalyx differentiates 2- and 3-dimensional cell models. Glycobiology 2023; 33:2-16. [PMID: 36345209 PMCID: PMC9829041 DOI: 10.1093/glycob/cwac075] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/10/2022] [Accepted: 09/26/2022] [Indexed: 11/09/2022] Open
Abstract
A multi-glycomic method for characterizing the glycocalyx was employed to identify the difference between 2-dimensional (2D) and 3-dimensional (3D) culture models with two human colorectal cancer cell lines, HCT116 and HT29. 3D cell cultures are considered more representative of cancer due to their ability to mimic the microenvironment found in tumors. For this reason, they have become an important tool in cancer research. Cell-cell interactions increase in 3D models compared to 2D, indeed significant glycomic changes were observed for each cell line. Analyses included the N-glycome, O-glycome, glycolipidome, glycoproteome, and proteome providing the most extensive characterization of the glycocalyx between 3D and 2D thus far. The different glycoconjugates were affected in different ways. In the N-glycome, the 3D cells increased in high-mannose glycosylation and in core fucosylation. Glycolipids increased in sialylation. Specific glycoproteins were found to increase in the 3D cell, elucidating the pathways that are affected between the two models. The results show large structural and biological changes between the 2 models suggesting that the 2 are indeed very different potentially affecting individual outcomes in the study of diseases.
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Affiliation(s)
- Qingwen Zhou
- Department of Chemistry, University of California, Davis, CA, United States
| | - Michael Russelle S Alvarez
- Department of Chemistry, University of California, Davis, CA, United States
- Institute of Chemistry, University of the Philippines Los Banos, Los Banos, Laguna, Philippines
| | - Kemal Solakyildirim
- Department of Chemistry, University of California, Davis, CA, United States
- Department of Chemistry, Erzincan Binali Yildirim University, Erzincan, Turkey
| | - Jennyfer Tena
- Department of Chemistry, University of California, Davis, CA, United States
| | - Luster Mae N Serrano
- Institute of Chemistry, University of the Philippines Los Banos, Los Banos, Laguna, Philippines
| | - Matthew Lam
- Department of Chemistry, University of California, Davis, CA, United States
| | - Cynthia Nguyen
- Department of Chemistry, University of California, Davis, CA, United States
| | - Fernando Tobias
- Department of Chemistry and Biochemistry, The Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
| | - Amanda B Hummon
- Department of Chemistry and Biochemistry, The Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
| | - Ruel C Nacario
- Institute of Chemistry, University of the Philippines Los Banos, Los Banos, Laguna, Philippines
| | - Carlito B Lebrilla
- Department of Chemistry, University of California, Davis, CA, United States
- Department of Chemistry, Biochemistry, Molecular, Cellular and Developmental Biology Graduate Group, University of California, Davis, CA, United States
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3
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Park DB, Kim L, Hwang JH, Kim KT, Park JE, Choi JS, An HJ. Temporal quantitative profiling of sialyllactoses and sialic acids after oral administration of sialyllactose to mini-pigs with osteoarthritis. RSC Adv 2023; 13:1115-1124. [PMID: 36686942 PMCID: PMC9811936 DOI: 10.1039/d2ra05912f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 12/21/2022] [Indexed: 01/06/2023] Open
Abstract
Sialyllactose (SL) is the most abundant acidic oligosaccharide in human breast milk and plays a primary role in various biological processes. Recently, SL has attracted attention as an excellent dietary supplement for arthritis because it is effective in cartilage protection and treatment. Despite the superior function of SL, there are few pharmacological studies of SL according to blood concentrations in arthritis models. In this study, we investigated quantitative changes in SL and sialic acids in the plasma obtained from mini-pigs with osteoarthritis throughout exogenous administration of SL using liquid chromatography-multiple reaction monitoring mass spectrometry. Plasma concentrations of SL and sialic acids in the SL-fed group showed a significant difference compared to the control group. Mini pigs were fed only Neu5Ac bound to SL, but the concentration patterns of the two types of sialic acid, Neu5Ac and Neu5Gc, were similar. In addition, the relative mRNA expression level of matrix metalloproteinases (MMPs), which is known as a critical factor in cartilage matrix degradation, was remarkably decreased in the synovial membrane of the SL-fed group. Consequently, the temporal quantitative profiling suggests that dietary SL can be metabolized and utilized in the body and may protect against cartilage degradation by suppressing MMP expression during osteoarthritis progression.
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Affiliation(s)
- Dan Bi Park
- GeneChem Inc.Yuseong-guDaejeon 34025Republic of Korea,Graduate School of Analytical Science and Technology, Chungnam National UniversityDaejeon 34134Republic of Korea
| | - Lila Kim
- GeneChem Inc.Yuseong-guDaejeon 34025Republic of Korea
| | - Jeong Ho Hwang
- Animal Model Research Group, Jeonbuk Branch Institute, Korea Institute of ToxicologyJeollabukdo56212Republic of Korea
| | - Kyung-Tai Kim
- Animal Model Research Group, Jeonbuk Branch Institute, Korea Institute of ToxicologyJeollabukdo56212Republic of Korea
| | - Ji Eun Park
- Graduate School of Analytical Science and Technology, Chungnam National UniversityDaejeon 34134Republic of Korea,Asia Glycomics Reference SiteDaejeon 34134Republic of Korea
| | - Jong-Soon Choi
- Graduate School of Analytical Science and Technology, Chungnam National UniversityDaejeon 34134Republic of Korea,Research Center for Materials Analysis, Korea Basic Science InstituteDaejeon34133Republic of Korea
| | - Hyun Joo An
- Graduate School of Analytical Science and Technology, Chungnam National UniversityDaejeon 34134Republic of Korea,Asia Glycomics Reference SiteDaejeon 34134Republic of Korea
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Raposo AC, Lebrilla C, Portela RW, Xu G, Oriá AP. The glycoproteomics of hawk and caiman tears. BMC Vet Res 2021; 17:381. [PMID: 34886864 PMCID: PMC8656020 DOI: 10.1186/s12917-021-03088-1] [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: 02/18/2021] [Accepted: 11/22/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Glycoproteins are important tear components that participate in the stability of the ocular surface. However, the glycopeptides that are present in the tears of wild animals have not yet been described. This work aimed to describe the glycoproteomic profile of roadside hawk (Rupornis magnirostris) and caiman (Caiman latirostris) tears. METHODS Tears collected from 10 hawks and 70 caimans using Schirmer tear test strips were used in this study. The samples were submitted to trypsin digestion and separated using a reverse-phase column coupled to a mass spectrometer associated to a nanospray ionization source. The glycoproteins were categorized as: cellular components, biological processes and molecular function, according to the UniProt Knowledgebase. RESULTS As shown by the liquid chromatography-mass spectrometry, all glycopeptides found were classified as N-type. Of the 51 glycoproteins that were identified in the hawk tear film, the most abundant were ovotransferrin, globulins and complement system proteins. In the caiman tear film, 29 glycoproteins were identified. The most abundant caiman glycoproteins were uncharacterized proteins, ATPases, globulins and proteasome components. Ontological characterization revealed that the glycoproteins were extracellular, and the most identified molecular function was endopeptidase activity for both species. CONCLUSION Glycoproteins are abundant in the tear film of the bird and reptile species studied herein, and all these molecules were shown to have N-type modifications. Location at the extracellular space and an endopeptidase inhibitor activity were the main cell component and molecular function for both species, respectively. These profiles showed differences when compared to human tears, are possibly linked to adaptive processes and can be the basis for further studies on the search of disease biomarkers.
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Affiliation(s)
- Ana Cláudia Raposo
- School of Veterinary Medicine, Federal University of Bahia, Brazil, Salvador, 40.110-060, Brazil
| | - Carlito Lebrilla
- Chemistry Department, Mass Spectrometry Facilities Campus, University of California, Davis, CA, 95616-8585, USA
| | - Ricardo Wagner Portela
- Institute of Health Sciences, Federal University of Bahia, Brazil, Salvador, 40.110-100, Brazil
| | - Gege Xu
- Chemistry Department, Mass Spectrometry Facilities Campus, University of California, Davis, CA, 95616-8585, USA
| | - Arianne Pontes Oriá
- School of Veterinary Medicine, Federal University of Bahia, Brazil, Salvador, 40.110-060, Brazil.
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5
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Wu J, Sigler A, Pfaff A, Cen N, Ercal N, Shi H. Development of a HPLC-MS/MS method for assessment of thiol redox status in human tear fluids. Anal Biochem 2021; 629:114295. [PMID: 34186074 DOI: 10.1016/j.ab.2021.114295] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 06/02/2021] [Accepted: 06/23/2021] [Indexed: 01/17/2023]
Abstract
Oxidative stress is reported to be part of the pathology of many ocular diseases. For the diagnosis of ocular diseases, tear fluid has unique advantages. Although numerous analytical methods exist for the measurement of different types of biomolecules in tear fluid, few have been reported for comprehensive understanding of oxidative stress-related thiol redox signaling. In this study, a high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method was developed to determine a panel of twelve metabolites that systematically covered several thiol metabolic pathways. With optimization of MS/MS parameters and HPLC mobile phases, this method was sensitive (LOQ as low as 0.01 ng/ml), accurate (80-125% spike recovery) and precise (<10% RSD). This LC-MS/MS method combined with a simple tear fluid collection with Schirmer test strip followed by ultrafiltration allowed the high-throughput analysis for efficient determination of metabolites associated with thiol redox signaling in human tear fluids. The method was then applied to a small cohort of tear fluids obtained from healthy individuals. The method presented here provides a new technique to facilitate future work aiming to determine the complex thiol redox signaling in tear fluids for accurate assessment and diagnosis of ocular diseases.
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Affiliation(s)
- Jiandong Wu
- Department of Chemistry, Missouri University of Science and Technology, Rolla, MO, 65409, United States
| | - Austin Sigler
- Department of Chemistry, Missouri University of Science and Technology, Rolla, MO, 65409, United States
| | - Annalise Pfaff
- Department of Chemistry, Missouri University of Science and Technology, Rolla, MO, 65409, United States
| | - Nan Cen
- Department of Computer Science, Missouri University of Science and Technology, Rolla, MO, 65409, United States
| | - Nuran Ercal
- Department of Chemistry, Missouri University of Science and Technology, Rolla, MO, 65409, United States.
| | - Honglan Shi
- Department of Chemistry, Missouri University of Science and Technology, Rolla, MO, 65409, United States.
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2013-2014. MASS SPECTROMETRY REVIEWS 2018; 37:353-491. [PMID: 29687922 DOI: 10.1002/mas.21530] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 11/29/2016] [Indexed: 06/08/2023]
Abstract
This review is the eighth update of the original article published in 1999 on the application of Matrix-assisted laser desorption/ionization mass spectrometry (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2014. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation, and arrays. The second part of the review is devoted to applications to various structural types such as oligo- and poly- saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Much of this material is presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. © 2018 Wiley Periodicals, Inc. Mass Spec Rev 37:353-491, 2018.
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Affiliation(s)
- David J Harvey
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford, OX3 7FZ, United Kingdom
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7
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Abstract
Glycosylation is a major form of enzymatic modification of organic molecules responsible for multiple biological processes in an organism. The biosynthesis of glycans is controlled by a series of glycosyltransferases, glycosidases and glycan-modifying enzymes that collectively assemble and process monosaccharide moieties into a diverse array of structures. Many studies have provided insight into various pathways of glycosylation at the ocular surface, such as those related to the biosynthesis of mucin-type O-glycans and N-glycans on proteins, but many others still remain largely unknown. This review provides an overview of the different classes of glycans described at the ocular surface focusing on their biosynthetic pathways and biological relevance. A precise understanding of these pathways under physiological and pathological conditions could help identify biomarkers and novel targets for therapeutic intervention.
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8
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Recent advances in the applications of metabolomics in eye research. Anal Chim Acta 2018; 1037:28-40. [PMID: 30292303 DOI: 10.1016/j.aca.2018.01.060] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 01/26/2018] [Accepted: 01/29/2018] [Indexed: 11/21/2022]
Abstract
Metabolomics, the identification and quantitation of metabolites in a system, have been applied to identify new biomarkers or elucidate disease mechanism. In this review, we discussed the application of metabolomics in several ocular diseases and recent developments in metabolomics regarding tear fluids analysis, data acquisition and processing.
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9
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Zhu Y, Yang Z, Rodgers MT. Influence of Linkage Stereochemistry and Protecting Groups on Glycosidic Bond Stability of Sodium Cationized Glycosyl Phosphates. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:2602-2613. [PMID: 28924832 DOI: 10.1007/s13361-017-1780-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 08/05/2017] [Accepted: 08/08/2017] [Indexed: 06/07/2023]
Abstract
Energy-resolved collision-induced dissociation (ER-CID) experiments of sodium cationized glycosyl phosphate complexes, [GP x +Na]+, are performed to elucidate the effects of linkage stereochemistry (α versus β), the geometry of the leaving groups (1,2-cis versus 1,2-trans), and protecting groups (cyclic versus non-cyclic) on the stability of the glycosyl phosphate linkage via survival yield analyses. A four parameter logistic dynamic fitting model is used to determine CID50% values, which correspond to the level of rf excitation required to produce 50% dissociation of the precursor ion complexes. Present results suggest that dissociation of 1,2-trans [GP x +Na]+ occurs via a McLafferty-type rearrangement that is facilitated by a syn orientation of the leaving groups, whereas dissociation of 1,2-cis [GPx+Na]+ is more energetic as it involves the formation of an oxocarbenium ion intermediate. Thus, the C1-C2 configuration plays a major role in determining the stability/reactivity of glycosyl phosphate stereoisomers. For 1,2-cis anomers, the cyclic protecting groups at the C4 and C6 positions stabilize the glycosidic bond, whereas for 1,2-trans anomers, the cyclic protecting groups at the C4 and C6 positions tend to activate the glycosidic bond. The C3 O-benzyl (3 BnO) substituent is key to determining whether the sugar or phosphate moiety retains the sodium cation upon CID. For 1,2-cis anomers, the 3 BnO substituent weakens the glycosidic bond, whereas for 1,2-trans anomers, the 3 BnO substituent stabilizes the glycosidic bond. The C2 O-benzyl substituent does not significantly impact the glycosidic bond stability regardless of its orientation. Graphical abstract ᅟ.
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Affiliation(s)
- Y Zhu
- Department of Chemistry, Wayne State University, Detroit, MI, 48202, USA
| | - Zhihua Yang
- Department of Chemistry, Wayne State University, Detroit, MI, 48202, USA
| | - M T Rodgers
- Department of Chemistry, Wayne State University, Detroit, MI, 48202, USA.
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10
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Monitoring of post-mortem changes of saliva N-glycosylation by nano LC/MS. Anal Bioanal Chem 2017; 410:45-56. [DOI: 10.1007/s00216-017-0702-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 09/25/2017] [Accepted: 10/10/2017] [Indexed: 01/01/2023]
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11
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Sensitive and comprehensive analysis of O-glycosylation in biotherapeutics: a case study of novel erythropoiesis stimulating protein. Bioanalysis 2017; 9:1373-1383. [PMID: 28920453 DOI: 10.4155/bio-2017-0085] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
AIM Glycosylation of recombinant human erythropoietins (rhEPOs) is significantly associated with drug's quality and potency. Thus, comprehensive characterization of glycosylation is vital to assess the biotherapeutic quality and establish the equivalency of biosimilar rhEPOs. However, current glycan analysis mainly focuses on the N-glycans due to the absence of analytical tools to liberate O-glycans with high sensitivity. We developed selective and sensitive method to profile native O-glycans on rhEPOs. RESULTS O-glycosylation on rhEPO including O-acetylation on a sialic acid was comprehensively characterized. Details such as O-glycan structure and O-acetyl-modification site were obtained from tandem MS. CONCLUSION This method may be applied to QC and batch analysis of not only rhEPOs but also other biotherapeutics bearing multiple O-glycosylations.
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12
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Investigation of O-glycosylation heterogeneity of recombinant coagulation factor IX using LC–MS/MS. Bioanalysis 2017; 9:1361-1372. [DOI: 10.4155/bio-2017-0086] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aim: Recombinant coagulation factor IX (rFIX) has extraordinarily multiple post-translational modifications including N-glycosylation and O-glycosylation which have a drastic effect on biological functions and in vivo recovery. Unlike N-glycosylation extensively characterized, there are a few studies on O-glycosylation due to its intrinsic complexity. In-depth O-glycosylation analysis is necessary to better understand and assess pharmacological activity of rFIX. Results: We determined unusual O-glycosylations including O-fucosylation and O-glucosylation which were located at Serine 53 and 61, respectively in EGF domain. Other O-glycosylations bearing core 1 glycan moiety were found on activation peptide. Conclusion: This is the first comprehensive study to characterize O-glycosylation of rFIX using MS-based glycomic and glycoproteomic approaches. Site-specific profiling will be a powerful platform to determine bioequivalence of biosimilars.
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Zhou L, Beuerman RW. The power of tears: how tear proteomics research could revolutionize the clinic. Expert Rev Proteomics 2017; 14:189-191. [PMID: 28117610 DOI: 10.1080/14789450.2017.1285703] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lei Zhou
- a Singapore Eye Research Institute , Singapore.,b National University Singapore Yong Loo Lin School of Medicine - Ophthalmology , Singapore.,c Duke-NUS Graduate Medical School - Ophthalmology and Visual Sciences Academic Clinical Research Program , Singapore
| | - Roger W Beuerman
- a Singapore Eye Research Institute , Singapore.,b National University Singapore Yong Loo Lin School of Medicine - Ophthalmology , Singapore.,c Duke-NUS Graduate Medical School - Ophthalmology and Visual Sciences Academic Clinical Research Program , Singapore
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14
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Manconi B, Cabras T, Sanna M, Piras V, Liori B, Pisano E, Iavarone F, Vincenzoni F, Cordaro M, Faa G, Castagnola M, Messana I. N- and O-linked glycosylation site profiling of the human basic salivary proline-rich protein 3M. J Sep Sci 2016; 39:1987-97. [DOI: 10.1002/jssc.201501306] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Barbara Manconi
- Dipartimento di Scienze della Vita e dell'Ambiente; Università di Cagliari; Cagliari Italy
| | - Tiziana Cabras
- Dipartimento di Scienze della Vita e dell'Ambiente; Università di Cagliari; Cagliari Italy
| | - Monica Sanna
- Dipartimento di Scienze della Vita e dell'Ambiente; Università di Cagliari; Cagliari Italy
| | - Valentina Piras
- Dipartimento di Scienze della Vita e dell'Ambiente; Università di Cagliari; Cagliari Italy
| | - Barbara Liori
- Dipartimento di Scienze della Vita e dell'Ambiente; Università di Cagliari; Cagliari Italy
| | - Elisabetta Pisano
- Dipartimento di Scienze Chirurgiche; Università di Cagliari; Cagliari Italy
| | - Federica Iavarone
- Istituto di Biochimica e Biochimica Clinica; Università Cattolica; Roma Italy
| | - Federica Vincenzoni
- Istituto di Biochimica e Biochimica Clinica; Università Cattolica; Roma Italy
| | - Massimo Cordaro
- Istituto di Clinica Odontostomatologica, Facoltà di Medicina; Università Cattolica; Roma Italy
| | - Gavino Faa
- Dipartimento di Scienze Chirurgiche; Università di Cagliari; Cagliari Italy
| | - Massimo Castagnola
- Istituto di Biochimica e Biochimica Clinica; Università Cattolica; Roma Italy
- Istituto di Chimica del Riconoscimento Molecolare - CNR; Roma Italy
| | - Irene Messana
- Istituto di Chimica del Riconoscimento Molecolare - CNR; Roma Italy
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15
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Culp DJ, Robinson B, Cash MN, Bhattacharyya I, Stewart C, Cuadra-Saenz G. Salivary mucin 19 glycoproteins: innate immune functions in Streptococcus mutans-induced caries in mice and evidence for expression in human saliva. J Biol Chem 2014; 290:2993-3008. [PMID: 25512380 DOI: 10.1074/jbc.m114.597906] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Saliva functions in innate immunity of the oral cavity, protecting against demineralization of teeth (i.e. dental caries), a highly prevalent infectious disease associated with Streptococcus mutans, a pathogen also linked to endocarditis and atheromatous plaques. Gel-forming mucins are a major constituent of saliva. Because Muc19 is the dominant salivary gel-forming mucin in mice, we studied Muc19(-/-) mice for changes in innate immune functions of saliva in interactions with S. mutans. When challenged with S. mutans and a cariogenic diet, total smooth and sulcal surface lesions are more than 2- and 1.6-fold higher in Muc19(-/-) mice compared with wild type, whereas the severity of lesions are up to 6- and 10-fold higher, respectively. Furthermore, the oral microbiota of Muc19(-/-) mice display higher levels of indigenous streptococci. Results emphasize the importance of a single salivary constituent in the innate immune functions of saliva. In vitro studies of S. mutans and Muc19 interactions (i.e. adherence, aggregation, and biofilm formation) demonstrate Muc19 poorly aggregates S. mutans. Nonetheless, aggregation is enhanced upon adding Muc19 to saliva from Muc19(-/-) mice, indicating Muc19 assists in bacterial clearance through formation of heterotypic complexes with salivary constituents that bind S. mutans, thus representing a novel innate immune function for salivary gel-forming mucins. In humans, expression of salivary MUC19 is unclear. We find MUC19 transcripts in salivary glands of seven subjects and demonstrate MUC19 glycoproteins in glandular mucous cells and saliva. Similarities and differences between mice and humans in the expression and functions of salivary gel-forming mucins are discussed.
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Affiliation(s)
| | | | | | - Indraneel Bhattacharyya
- Oral and Maxillofacial Diagnostic Sciences, College of Dentistry, University of Florida, Gainesville, Florida 32610
| | - Carol Stewart
- Oral and Maxillofacial Diagnostic Sciences, College of Dentistry, University of Florida, Gainesville, Florida 32610
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16
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Lazar IM, Deng J, Ikenishi F, Lazar AC. Exploring the glycoproteomics landscape with advanced MS technologies. Electrophoresis 2014; 36:225-37. [PMID: 25311661 DOI: 10.1002/elps.201400400] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 09/28/2014] [Accepted: 09/29/2014] [Indexed: 12/13/2022]
Abstract
The advance of glycoproteomic technologies has offered unique insights into the importance of glycosylation in determining the functional roles of a protein within a cell. Biologically active glycoproteins include the categories of enzymes, hormones, proteins involved in cell proliferation, cell membrane proteins involved in cell-cell recognition, and communication events or secreted proteins, just to name a few. The recent progress in analytical instrumentation, methodologies, and computational approaches has enabled a detailed exploration of glycan structure, connectivity, and heterogeneity, underscoring the staggering complexity of the glycome repertoire in a cell. A variety of approaches involving the use of spectroscopy, MS, separation, microfluidic, and microarray technologies have been used alone or in combination to tackle the glycoproteome challenge, the research results of these efforts being captured in an overwhelming number of annual publications. This work is aimed at reviewing the major developments and accomplishments in the field of glycoproteomics, with focus on the most recent advancements (2012-2014) that involve the use of capillary separations and MS detection.
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Affiliation(s)
- Iulia M Lazar
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA
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Nguyen-Khuong T, Everest-Dass AV, Kautto L, Zhao Z, Willcox MDP, Packer NH. Glycomic characterization of basal tears and changes with diabetes and diabetic retinopathy. Glycobiology 2014; 25:269-83. [PMID: 25303961 DOI: 10.1093/glycob/cwu108] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
As a secreted fluid, the state of tear glycosylation is particularly important in the role of immunity of the ocular surface. Tears are a valuable source of non-invasive biomarkers for disease and there are continued efforts to characterize their components thoroughly. In this study, a small volume of basal tears (5 μL) was collected from healthy controls, patients with diabetes without retinopathy and patients with diabetes and retinopathy. The detailed N- and O-linked tear protein glycome was characterized and the relative abundance of each structure determined. Of the 50 N-linked glycans found, 89% were complex with 50% containing a bisecting N-acetylglucosamine, 65% containing a core fucose whilst 33% were sialylated. Of the 8 O-linked glycans detected, 3 were of cores 1 and 5 of core 2 type, with a majority of them being sialylated (90%). Additionally, these glycan structures were profiled across the three diabetic disease groups. Whilst the higher abundant structures did not alter across the three groups, only five low abundance N-linked glycans and 1 O-linked glycan did alter with the onset of diabetes mellitus and diabetic retinopathy (DR). These results suggest the conservation of glycan types on basal tear proteins between individuals and point to only small changes in glycan expression on the proteins in tears with the development of diabetes and DR.
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Affiliation(s)
- Terry Nguyen-Khuong
- Biomolecular Frontiers Research Centre, Department of Chemistry and Biomolecular Sciences, Faculty of Science, Macquarie University, Building E8C Room 307, Sydney, NSW 2109, Australia
| | - Arun V Everest-Dass
- Biomolecular Frontiers Research Centre, Department of Chemistry and Biomolecular Sciences, Faculty of Science, Macquarie University, Building E8C Room 307, Sydney, NSW 2109, Australia
| | - Liisa Kautto
- Biomolecular Frontiers Research Centre, Department of Chemistry and Biomolecular Sciences, Faculty of Science, Macquarie University, Building E8C Room 307, Sydney, NSW 2109, Australia
| | - Zhenjun Zhao
- School of Optometry and Vision Science, University of New South Wales, Sydney, NSW, Australia
| | - Mark D P Willcox
- School of Optometry and Vision Science, University of New South Wales, Sydney, NSW, Australia
| | - Nicolle H Packer
- Biomolecular Frontiers Research Centre, Department of Chemistry and Biomolecular Sciences, Faculty of Science, Macquarie University, Building E8C Room 307, Sydney, NSW 2109, Australia
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