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Biricioiu MR, Sarbu M, Ica R, Vukelić Ž, Clemmer DE, Zamfir AD. Human Cerebellum Gangliosides: A Comprehensive Analysis by Ion Mobility Tandem Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2024; 35:683-695. [PMID: 38518248 DOI: 10.1021/jasms.3c00360] [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: 03/24/2024]
Abstract
The human cerebellum is an ultraspecialized region of the brain responsible for cognitive functions and movement coordination. The fine mechanisms through which the process of aging impacts such functions are not well understood; therefore, a rigorous exploration of this brain region at the molecular level is deemed necessary. Gangliosides, sialylated glycosphingolipids, highly and specifically expressed in the human central nervous system, represent possible molecular markers of cerebellum development and aging. In this context, for a comprehensive determination of development- and age-specific components, we have conducted here a comparative profiling and structural determination of the gangliosides expressed in fetal cerebellum in two intrauterine developmental stages and aged cerebellum by ion mobility separation (IMS) mass spectrometry (MS) and tandem MS (MS/MS). Due to the high sensitivity and efficiency of separation provided by IMS MS, no less than 551 chemically distinct species were identified, which represents 4.5 times more gangliosides than ever discovered in this brain region. The detailed assessment of fetal vs aged cerebellum gangliosidome showed marked discrepancies not only in the general number of the species expressed, but also in their sialylation patterns, the modifications of the glycan core, and the composition of the ceramides. All of these characteristics are potential markers of cerebellum development and aging. The structural analysis by collision-induced dissociation (CID) documented the occurrence of GD1b (d18:1/18:0) isomer in the fetal cerebellum in the second gestational trimester, with all probability of GQ1b (t18:1/18:0) in the near-term fetus and of GQ1b (d18:1/18:0) in aged cerebellum.
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Affiliation(s)
- Maria Roxana Biricioiu
- Department of Condensed Matter, National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, 300224, Romania
- Department of Physics, West University of Timisoara, Timisoara 300223, Romania
| | - Mirela Sarbu
- Department of Condensed Matter, National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, 300224, Romania
| | - Raluca Ica
- Department of Condensed Matter, National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, 300224, Romania
| | - Željka Vukelić
- Department of Chemistry and Biochemistry, School of Medicine, University of Zagreb, Zagreb 10000, Croatia
| | - David E Clemmer
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Alina D Zamfir
- Department of Condensed Matter, National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, 300224, Romania
- Institute for Research, Development and Innovation in Natural and Technical Sciences, Aurel Vlaicu University of Arad, Arad 310330, Romania
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Huang F, Bailey LS, Gao T, Jiang W, Yu L, Bennett DA, Zhao J, Basso KB, Guo Z. Analysis and Comparison of Mouse and Human Brain Gangliosides via Two-Stage Matching of MS/MS Spectra. ACS OMEGA 2022; 7:6403-6411. [PMID: 35224401 PMCID: PMC8867566 DOI: 10.1021/acsomega.1c07070] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 01/28/2022] [Indexed: 05/13/2023]
Abstract
Glycosphingolipids (GSLs), including gangliosides, are essential components of the cell membrane. Because of their vital biological functions, a facile method for the analysis and comparison of GSLs in biological issues is desired. To this end, a new method for GSL analysis was developed based on two-stage matching of the carbohydrate and glycolipid product ions of experimental and reference MS/MS spectra of GSLs. The applicability of this method to the analysis of gangliosides in biological tissues was verified using human plasma and mouse brains spiked with standards. The method was then used to characterize endogenous gangliosides in mouse and human brains. It was shown that each endogenous ganglioside species had varied lipid forms and that mouse and human brains had different compositions of ganglioside species and lipid forms. Moreover, a 36-carbon ceramide is found to represent the major lipid form for mouse brain gangliosides, while the major lipid form for most human brain gangliosides is a 38-carbon ceramide. This study has verified that the two-stage MS/MS spectral matching method could be used to study gangliosides or GSLs and their lipid forms in complex biological samples, thereby having a broad application.
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Affiliation(s)
- Fanran Huang
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Laura S. Bailey
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Tianqi Gao
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Wenjie Jiang
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Lei Yu
- Rush
Alzheimer’s Disease Center, Rush
University Medical Center, Chicago, Illinois 60612, United States
| | - David A. Bennett
- Rush
Alzheimer’s Disease Center, Rush
University Medical Center, Chicago, Illinois 60612, United States
| | - Jinying Zhao
- Department
of Epidemiology, University of Florida, Gainesville, Florida 32611, United States
| | - Kari B. Basso
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Zhongwu Guo
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611, United States
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3
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Bailey LS, Huang F, Gao T, Zhao J, Basso KB, Guo Z. Characterization of Glycosphingolipids and Their Diverse Lipid Forms through Two-Stage Matching of LC-MS/MS Spectra. Anal Chem 2021; 93:3154-3162. [PMID: 33534538 DOI: 10.1021/acs.analchem.0c04542] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Glycosphingolipids (GSLs) play a key role in various biological and pathological events. Thus, determination of the complete GSL compositions in human tissues is essential for comparative and functional studies of GSLs. In this work, a new strategy was developed for GSL characterization and glycolipidomics analysis based on two-stage matching of experimental and reference MS/MS spectra. In the first stage, carbohydrate fragments, which contain only glycans and thus are conserved within a GSL species, are directly matched to yield a species identification. In the second stage, glycolipid fragments from the matched GSL species, which contain both the lipid and glycans and thus shift due to lipid structural changes, are treated according to lipid rule-based matching to characterize the lipid compositions. This new strategy uses the whole spectrum for GSL characterization. Furthermore, simple databases containing only a single lipid form per GSL species can be utilized to identify multiple GSL lipid forms. It is expected that this method will help accelerate glycolipidomics analysis and disclose new and diverse lipid forms of GSLs.
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4
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Sarbu M, Ica R, Zamfir AD. Developments and applications of separation and microfluidics methods coupled to electrospray mass spectrometry in glycomics of nervous system gangliosides. Electrophoresis 2021; 42:429-449. [PMID: 33314304 DOI: 10.1002/elps.202000236] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 11/26/2020] [Accepted: 12/07/2020] [Indexed: 01/19/2023]
Abstract
Gangliosides are particularly abundant in the nervous system (NS) where their pattern and structure in a certain milieu or a defined region exhibit a pronounced specificity. Since gangliosides are useful biomarkers for diagnosis of NS ailments, a clear-cut mapping of individual components represents a prerequisite for designing ganglioside-based diagnostic procedures, treatments, or vaccines. These bioclinical aspects and the high diversity of ganglioside species claim for development of specific analytical strategies. This review summarizes the state-of-the-art in the implementation of separation techniques and microfluidics coupled to MS, which have contributed significantly to the advancement of the field. In the first part, the review discusses relevant approaches based on HPLC MS and CE coupled to ESI MS and their applications in the characterization of gangliosides expressed in healthy and diseased NS. A considerable section is dedicated to microfluidics MS and ion mobility separation MS, developed for the study of brain gangliosidome and its changes triggered by various factors, as well as for ganglioside biomarker discovery in neurodegenerative diseases and brain cancer. In the last part of the review, the benefits and perspectives in ganglioside research of these high-performance techniques are presented.
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Affiliation(s)
- Mirela Sarbu
- National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, Romania
| | - Raluca Ica
- National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, Romania.,Department of Physics, West University of Timisoara, Timisoara, Romania
| | - Alina D Zamfir
- National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, Romania.,Department of Technical and Natural Sciences, "Aurel Vlaicu" University of Arad, Arad, Romania
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Sarbu M, Raab S, Henderson L, Fabris D, Vukelić Ž, Clemmer DE, Zamfir AD. Cerebrospinal fluid: Profiling and fragmentation of gangliosides by ion mobility mass spectrometry. Biochimie 2020; 170:36-48. [DOI: 10.1016/j.biochi.2019.12.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 12/14/2019] [Indexed: 11/30/2022]
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Nanotechnology and sialic acid biology. SIALIC ACIDS AND SIALOGLYCOCONJUGATES IN THE BIOLOGY OF LIFE, HEALTH AND DISEASE 2020. [PMCID: PMC7153339 DOI: 10.1016/b978-0-12-816126-5.00011-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Sarbu M, Dehelean L, Munteanu CVA, Ica R, Petrescu AJ, Zamfir AD. Human caudate nucleus exhibits a highly complex ganglioside pattern as revealed by high-resolution multistage Orbitrap MS. J Carbohydr Chem 2019. [DOI: 10.1080/07328303.2019.1669632] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mirela Sarbu
- Department of Applied Physics, National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, Romania
| | - Liana Dehelean
- Department of Neurosciences, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
| | - Cristian V. A. Munteanu
- Department of Bioinformatics and Structural Biochemistry, Institute of Biochemistry of the Romanian Academy, Bucharest, Romania
| | - Raluca Ica
- Department of Applied Physics, National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, Romania
| | - Andrei J. Petrescu
- Department of Bioinformatics and Structural Biochemistry, Institute of Biochemistry of the Romanian Academy, Bucharest, Romania
| | - Alina D. Zamfir
- Department of Applied Physics, National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, Romania
- Department of Technical and Natural Sciences, “Aurel Vlaicu” University of Arad, Arad, Romania
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8
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Kempa EE, Hollywood KA, Smith CA, Barran PE. High throughput screening of complex biological samples with mass spectrometry – from bulk measurements to single cell analysis. Analyst 2019; 144:872-891. [DOI: 10.1039/c8an01448e] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We review the state of the art in HTS using mass spectrometry with minimal sample preparation from complex biological matrices. We focus on industrial and biotechnological applications.
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Affiliation(s)
- Emily E. Kempa
- Michael Barber Centre for Collaborative Mass Spectrometry
- Manchester Institute of Biotechnology
- The University of Manchester
- Manchester
- UK
| | - Katherine A. Hollywood
- Manchester Centre for Synthetic Biology of Fine and Speciality Chemicals (SYNBIOCHEM)
- Manchester Institute of Biotechnology
- The University of Manchester
- Manchester M1 7DN
- UK
| | - Clive A. Smith
- Sphere Fluidics Limited
- The Jonas-Webb Building
- Babraham Research Campus
- Cambridge
- UK
| | - Perdita E. Barran
- Michael Barber Centre for Collaborative Mass Spectrometry
- Manchester Institute of Biotechnology
- The University of Manchester
- Manchester
- UK
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9
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Zhang Q, Li Z, Wang Y, Zheng Q, Li J. Mass spectrometry for protein sialoglycosylation. MASS SPECTROMETRY REVIEWS 2018; 37:652-680. [PMID: 29228471 DOI: 10.1002/mas.21555] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 11/17/2017] [Indexed: 06/07/2023]
Abstract
Sialic acids are a family of structurally unique and negatively charged nine-carbon sugars, normally found at the terminal positions of glycan chains on glycoproteins and glycolipids. The glycosylation of proteins is a universal post-translational modification in eukaryotic species and regulates essential biological functions, in which the most common sialic acid is N-acetyl-neuraminic acid (2-keto-5-acetamido-3,5-dideoxy-D-glycero-D-galactononulopyranos-1-onic acid) (Neu5NAc). Because of the properties of sialic acids under general mass spectrometry (MS) conditions, such as instability, ionization discrimination, and mixed adducts, the use of MS in the analysis of protein sialoglycosylation is still challenging. The present review is focused on the application of MS related methodologies to the study of both N- and O-linked sialoglycans. We reviewed MS-based strategies for characterizing sialylation by analyzing intact glycoproteins, proteolytic digested glycopeptides, and released glycans. The review concludes with future perspectives in the field.
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Affiliation(s)
- Qiwei Zhang
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Institute for Interdisciplinary Research, Institute of Environment and Health, School of Chemical and Environmental Engineering, Jianghan University, Wuhan, China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Haidian District, Beijing, China
| | - Zack Li
- School of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Yawei Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Haidian District, Beijing, China
| | - Qi Zheng
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Institute for Interdisciplinary Research, Institute of Environment and Health, School of Chemical and Environmental Engineering, Jianghan University, Wuhan, China
| | - Jianjun Li
- National Research Council Canada, Ottawa, Ontario, Canada
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10
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Cozma II, Sarbu M, Ilie C, Zamfir AD. Structural analysis by electrospray ionization mass spectrometry of GT1 ganglioside fraction isolated from fetal brain. J Carbohydr Chem 2017. [DOI: 10.1080/07328303.2017.1397680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Irma I. Cozma
- Department of Neonatology, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
- National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, Romania
| | - Mirela Sarbu
- National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, Romania
- Department of the Analysis and Modeling of Biological Systems, “Aurel Vlaicu” University of Arad, Arad, Romania
| | - Constantin Ilie
- Department of Neonatology, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
| | - Alina D. Zamfir
- National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, Romania
- Department of the Analysis and Modeling of Biological Systems, “Aurel Vlaicu” University of Arad, Arad, Romania
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11
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Barrientos RC, Vu N, Zhang Q. Structural Analysis of Unsaturated Glycosphingolipids Using Shotgun Ozone-Induced Dissociation Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:2330-2343. [PMID: 28831744 PMCID: PMC5647240 DOI: 10.1007/s13361-017-1772-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 07/24/2017] [Accepted: 07/24/2017] [Indexed: 05/09/2023]
Abstract
Glycosphingolipids are essential biomolecules widely distributed across biological kingdoms yet remain relatively underexplored owing to both compositional and structural complexity. While the glycan head group has been the subject of most studies, there is paucity of reports on the lipid moiety, particularly the location of unsaturation. In this paper, ozone-induced dissociation mass spectrometry (OzID-MS) implemented in a traveling wave-based quadrupole time-of-flight (Q-ToF) mass spectrometer was applied to study unsaturated glycosphingolipids using shotgun approach. Resulting high resolution mass spectra facilitated the unambiguous identification of diagnostic OzID product ions. Using [M+Na]+ adducts of authentic standards, we observed that the long chain base and fatty acyl unsaturation had distinct reactivity with ozone. The reactivity of unsaturation in the fatty acyl chain was about 8-fold higher than that in the long chain base, which enables their straightforward differentiation. Influence of the head group, fatty acyl hydroxylation, and length of fatty acyl chain on the oxidative cleavage of double bonds was also observed. Application of this technique to bovine brain galactocerebrosides revealed co-isolated isobaric and regioisomeric species, which otherwise would be incompletely identified using contemporary collision-induced dissociation (CID) alone. These results highlight the potential of OzID-MS in glycosphingolipids research, which not only provides complementary structural information to existing CID technique but also facilitates de novo structural determination of these complex biomolecules. Graphical Abstract ᅟ.
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Affiliation(s)
- Rodell C Barrientos
- Department of Chemistry and Biochemistry, The University of North Carolina at Greensboro, Greensboro, NC, 27412, USA
| | - Ngoc Vu
- Department of Chemistry and Biochemistry, The University of North Carolina at Greensboro, Greensboro, NC, 27412, USA
| | - Qibin Zhang
- Department of Chemistry and Biochemistry, The University of North Carolina at Greensboro, Greensboro, NC, 27412, USA.
- UNCG Center for Translational Biomedical Research, North Carolina Research Campus, Kannapolis, NC, 28081, USA.
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12
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Electrospray ionization ion mobility mass spectrometry provides novel insights into the pattern and activity of fetal hippocampus gangliosides. Biochimie 2017; 139:81-94. [DOI: 10.1016/j.biochi.2017.05.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 05/24/2017] [Indexed: 12/19/2022]
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13
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Popescu L, Robu AC, Zamfir AD. Sustainable Nanosystem Development for Mass Spectrometry. SUSTAINABLE NANOSYSTEMS DEVELOPMENT, PROPERTIES, AND APPLICATIONS 2017. [DOI: 10.4018/978-1-5225-0492-4.ch014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nowadays, considerable efforts are invested into development of sustainable nanosystems as front end technology for either Electrospray Ionization (ESI) or Matrix-Assisted Laser Desorption/Ionization (MALDI) mass spectrometry (MS). Since their first introduction in MS, nanofluidics demonstrated a high potential to discover novel biopolymer species. These systems confirmed the unique ability to offer structural elucidation of molecular species, which often represent valuable biomarkers of severe diseases. In view of these major advantages of nanofluidics-MS, this chapter reviews the strategies, which allowed a successful development of nanotechnology for MS and the applications in biological and clinical research. The first part will be dedicated to the principles and technical developments of advanced nanosystems for electrospray and MALDI MS. The second part will highlight the most important applications in clinical proteomics and glycomics. Finally, this chapter will emphasize that advanced nanosystems-MS has real perspectives to become a routine method for early diagnosis of severe pathologies.
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Affiliation(s)
- Laurentiu Popescu
- West University of Timişoara, Romania & Research and Development National Institute for Electrochemistry and Condensed Matter (INCEMC) Timişoara, Romania
| | - Adrian C. Robu
- West University of Timişoara, Romania & Research and Development National Institute for Electrochemistry and Condensed Matter (INCEMC) Timişoara, Romania
| | - Alina D. Zamfir
- Research and Development National Institute for Electrochemistry and Condensed Matter (INCEMC) Timişoara, Romania & Aurel Vlaicu University of Arad, Romania
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14
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Mass spectrometry of gangliosides in extracranial tumors: Application to adrenal neuroblastoma. Anal Biochem 2016; 509:1-11. [DOI: 10.1016/j.ab.2016.06.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/01/2016] [Accepted: 06/03/2016] [Indexed: 12/25/2022]
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15
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Sarbu M, Robu AC, Ghiulai RM, Vukelić Ž, Clemmer DE, Zamfir AD. Electrospray Ionization Ion Mobility Mass Spectrometry of Human Brain Gangliosides. Anal Chem 2016; 88:5166-78. [PMID: 27088833 DOI: 10.1021/acs.analchem.6b00155] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The progress of ion mobility spectrometry (IMS), together with its association to mass spectrometry (MS), opened new directions for the identification of various metabolites in complex biological matrices. However, glycolipidomics of the human brain by IMS MS represents an area untouched up to now, because of the difficulties encountered in brain sampling, analyte extraction, and IMS MS method optimization. In this study, IMS MS was introduced in human brain ganglioside (GG) research. The efficiency of the method in clinical glycolipidomics was demonstrated on a highly complex mixture extracted from a normal fetal frontal lobe (FL37). Using this approach, a remarkably rich molecular ion pattern was discovered, which proved the presence of a large number of glycoforms and an unpredicted diversity of the ceramide chains. Moreover, the results showed for the first time the occurrence of GGs in the human brain with a much higher degree of sialylation than previously reported. Using IMS MS, the entire series starting from mono- up to octasialylated GGs was detected in FL37. These findings substantiate early clinical reports on the direct correlation between GG sialylation degree and brain developmental stage. Using IMS CID MS/MS, applied here for the first time to gangliosides, a novel, tetrasialylated O-GalNAc modified species with a potential biomarker role in brain development was structurally characterized. Under variable collision energy, a high number of sequence ions was generated for the investigated GalNAc-GQ1(d18:1/18:0) species. Several fragment ions documented the presence of the tetrasialo element attached to the inner Gal, indicating that GalNAc-GQ1(d18:1/18:0) belongs to the d series.
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Affiliation(s)
- Mirela Sarbu
- Aurel Vlaicu University of Arad , 310130 Arad, Romania.,National Institute for Research and Development in Electrochemistry and Condensed Matter, 300569 Timisoara, Romania
| | - Adrian C Robu
- National Institute for Research and Development in Electrochemistry and Condensed Matter, 300569 Timisoara, Romania.,West University of Timisoara , 300223 Timisoara, Romania
| | - Roxana M Ghiulai
- Department of Pharmacy, Victor Babes University of Medicine and Pharmacy , 300041 Timisoara, Romania
| | - Željka Vukelić
- Department of Chemistry and Biochemistry, University of Zagreb Medical School , HR-10000 Zagreb, Croatia
| | - David E Clemmer
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - Alina D Zamfir
- Aurel Vlaicu University of Arad , 310130 Arad, Romania.,National Institute for Research and Development in Electrochemistry and Condensed Matter, 300569 Timisoara, Romania
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16
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Lab-on-a-Chip hyphenation with mass spectrometry: strategies for bioanalytical applications. Curr Opin Biotechnol 2014; 31:79-85. [PMID: 25232996 DOI: 10.1016/j.copbio.2014.08.009] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 08/28/2014] [Indexed: 11/23/2022]
Abstract
The Lab-on-a-Chip concept aims at miniaturizing laboratory processes to enable automation and/or parallelization via microfluidic chips that are capable of handling minute sample volumes. Mass spectrometry is nowadays the detection method of choice, because of its selectivity, sensitivity and wide application range. We review the most interesting examples over the last two-and-a-half years where the two techniques were used for bioanalytical applications. Furthermore, we discuss the merits and limitations of such hyphenated systems. We inventorize the reported applications and approaches. We see an ongoing trend towards chip-based liquid chromatography-mass spectrometry usage and small volume analysis applications, particularly in the field of proteomics where bottom-up approaches profit from chip-based technologies and hyphenation with complex cell cultures.
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17
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Ghiulai RM, Sarbu M, Vukelić Ž, Ilie C, Zamfir AD. Early stage fetal neocortex exhibits a complex ganglioside profile as revealed by high resolution tandem mass spectrometry. Glycoconj J 2014; 31:231-45. [DOI: 10.1007/s10719-014-9517-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 02/05/2014] [Accepted: 02/10/2014] [Indexed: 11/30/2022]
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18
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Zamfir AD. Neurological Analyses: Focus on Gangliosides and Mass Spectrometry. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 806:153-204. [DOI: 10.1007/978-3-319-06068-2_8] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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19
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Flangea C, Fabris D, Vukelić Ž, Zamfir AD. Mass Spectrometry of Gangliosides from Human Sensory and Motor Cortex. Aust J Chem 2013. [DOI: 10.1071/ch13173] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Sialylated glycosphingolipids, known as gangliosides, are highly expressed in the central nervous system exhibiting region-specific composition in correlation to the specialised functions of particular brain regions. In the present study high resolution tandem mass spectrometry on a quadrupole time-of-flight instrument with nanoelectrospray was optimised and applied for the first comparative assessment of the ganglioside profile in single specimens of adult human motor and somatosensory cortex. In the second stage, the structural analysis performed by collision induced dissociation tandem MS disclosed the presence in motor cortex of a fucose-ganglioside Fuc-GM1 (d18 : 1/20 : 0) isomer exhibiting both N-acetylneuraminic acid and fucose residues linked to the inner galactose.
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