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Nakao H, Yamaguchi T, Kawabata K, Higashi K, Nonaka M, Tuiji M, Nagai Y, Toyoda H, Yamaguchi Y, Kawasaki N, Kawasaki T. Characterization of novel antibodies that recognize sialylated keratan sulfate and lacto-N-fucopentaose I on human induced pluripotent cells: comparison with existing antibodies. Glycobiology 2023; 33:150-164. [PMID: 36373215 DOI: 10.1093/glycob/cwac074] [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: 01/23/2022] [Revised: 10/24/2022] [Accepted: 10/24/2022] [Indexed: 11/16/2022] Open
Abstract
This report describes the isolation and characterization of two new antibodies, R-6C (IgM) and R-13E (IgM), which were generated in C57BL/6 mice (Mus musculus) using the Tic (JCRB1331) human induced pluripotent cell (hiPSC) line as an antigen, and their comparisons with two existing antibodies, R-10G (IgG1) and R-17F (IgG1). Their epitopes were studied by western blotting after various glycosidase digestions, binding analyses using enzyme-linked immunosorbent assays (ELISAs) and microarrays with various synthetic oligosaccharides. The minimum epitope structures identified were: Siaα2-3Galβ1-3GlcNAc(6S)β1-3Galβ1-4GlcNAc(6S)β1 (R-6C), Fucα1-2Galβ1-3GlcNAcβ1-3Galβ1 (R-13E), Galβ1-4GlcNAc(6S)β1-3Galβ1-4GlcNAc(6S)β1 (R-10G), and Fucα1-2Galβ1-3GlcNAβ1-3Galβ1-4Glc (lacto-N-fucopentaose I) (R-17F). Most glycoprotein epitopes are expressed as O-glycans. The common feature of these epitopes is the presence of an N-acetyllactosamine type 1 structure (Galβ1-3GlcNAc) at their nonreducing termini, followed by a type 2 structure (Galβ1-4GlcNAc); this arrangement comprises a type 1-type 2 motif. This motif is also shared by TRA-1-60, a traditional onco-fetal antigen. In contrast, the R-10G epitope has a type 2-type 2 motif. Among these antibodies, R-17F and R-13E exhibit cytotoxic activity toward hiPSCs. R-17F and R-13E exhibit extremely high similarity in the amino acid sequences in their complementarity-determining regions (CDRs), which is consistent with their highly similar glycan recognition. These antibodies are excellent tools for investigating the biological functions of glycoconjugates in hiPSCs/hESCs; they could be useful for the selection, isolation and selective killing of such undifferentiated pluripotent stem cells.
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Affiliation(s)
- Hiromi Nakao
- Glycobiotechnology Laboratory, Research Organization of Science and Technology, Ritsumeikan University, Noji-Higashi 1-1-1, Kusatsu, Shiga 525-8577, Japan
| | - Tomoko Yamaguchi
- Laboratory of Cell Model for Drug Discovery, National Institutes of Biomedical Innovation, Health and Nutrition, Saito-Asagi 7-6-8, Ibaraki, Osaka 567-0085, Japan
| | - Kenji Kawabata
- Laboratory of Cell Model for Drug Discovery, National Institutes of Biomedical Innovation, Health and Nutrition, Saito-Asagi 7-6-8, Ibaraki, Osaka 567-0085, Japan
| | - Katsuaki Higashi
- Department of Biological Chemistry, Human Health Sciences, Graduate School of Medicine, Kyoto University, Shogoin-Kawaharacho 53, Sakyo-ku, Kyoto, Kyoto 606-8507, Japan
| | - Motohiro Nonaka
- Department of Biological Chemistry, Human Health Sciences, Graduate School of Medicine, Kyoto University, Shogoin-Kawaharacho 53, Sakyo-ku, Kyoto, Kyoto 606-8507, Japan
| | - Makoto Tuiji
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara 2-4-41, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Yuko Nagai
- Laboratory of Bio-analytical Chemistry, College of Pharmaceutical Sciences, Ritsumeikan University, Shiga 525-8577, Japan
| | - Hidenao Toyoda
- Laboratory of Bio-analytical Chemistry, College of Pharmaceutical Sciences, Ritsumeikan University, Shiga 525-8577, Japan
| | - Yoshiki Yamaguchi
- Division of Structural Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Komatsushima 4-4-1, Aobaku, Sendai, Miyagi 981-8558, Japan
| | - Nobuko Kawasaki
- Glycobiotechnology Laboratory, Research Organization of Science and Technology, Ritsumeikan University, Noji-Higashi 1-1-1, Kusatsu, Shiga 525-8577, Japan
| | - Toshisuke Kawasaki
- Glycobiotechnology Laboratory, Research Organization of Science and Technology, Ritsumeikan University, Noji-Higashi 1-1-1, Kusatsu, Shiga 525-8577, Japan.,Laboratory of Cell Model for Drug Discovery, National Institutes of Biomedical Innovation, Health and Nutrition, Saito-Asagi 7-6-8, Ibaraki, Osaka 567-0085, Japan
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Suzuki A, Silsirivanit A, Watanabe T, Matsuda J, Inamori KI, Inokuchi JI. Mass Spectrometry of Neutral Glycosphingolipids. Methods Mol Biol 2023; 2613:127-144. [PMID: 36587076 DOI: 10.1007/978-1-0716-2910-9_11] [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] [Indexed: 06/17/2023]
Abstract
This chapter describes the protocols for mass spectrometry (MS) applied to the structural characterization of neutral glycosphingolipids (GSLs) and the determination of neutral GSL contents in biological materials. The structural characterization is performed by thin layer chromatography-matrix assisted laser desorption ionization/mass spectrometry (TLC-MALDI/MS) and liquid chromatography-electrospray ionization/mass spectrometry (LC-ESI/MS) with reversed phase separation. The content determination is carried out by LC-ESI/MS with multiple reaction monitoring (MRM). These protocols provide clues for the functions of neutral GSLs at the level of a single GSL molecular species.
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Affiliation(s)
- Akemi Suzuki
- Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai City, Miyagi, Japan.
| | - Atit Silsirivanit
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Takashi Watanabe
- Department of Pathophysiology and Metabolism, Kawasaki Medical School, Okayama, Japan
| | - Junko Matsuda
- Department of Pathophysiology and Metabolism, Kawasaki Medical School, Okayama, Japan
| | - Kei-Ichiro Inamori
- Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai City, Miyagi, Japan
| | - Jin-Ichi Inokuchi
- Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai City, Miyagi, Japan
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Proteostasis regulators modulate proteasomal activity and gene expression to attenuate multiple phenotypes in Fabry disease. Biochem J 2020; 477:359-380. [PMID: 31899485 PMCID: PMC6993862 DOI: 10.1042/bcj20190513] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 12/17/2019] [Accepted: 01/02/2020] [Indexed: 12/22/2022]
Abstract
The lysosomal storage disorder Fabry disease is characterized by a deficiency of the lysosomal enzyme α-Galactosidase A. The observation that missense variants in the encoding GLA gene often lead to structural destabilization, endoplasmic reticulum retention and proteasomal degradation of the misfolded, but otherwise catalytically functional enzyme has resulted in the exploration of alternative therapeutic approaches. In this context, we have investigated proteostasis regulators (PRs) for their potential to increase cellular enzyme activity, and to reduce the disease-specific accumulation of the biomarker globotriaosylsphingosine in patient-derived cell culture. The PRs also acted synergistically with the clinically approved 1-deoxygalactonojirimycine, demonstrating the potential of combination treatment in a therapeutic application. Extensive characterization of the effective PRs revealed inhibition of the proteasome and elevation of GLA gene expression as paramount effects. Further analysis of transcriptional patterns of the PRs exposed a variety of genes involved in proteostasis as potential modulators. We propose that addressing proteostasis is an effective approach to discover new therapeutic targets for diseases involving folding and trafficking-deficient protein mutants.
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Honda JR, Hess T, Carlson R, Kandasamy P, Nieto Ramirez LM, Norton GJ, Virdi R, Islam MN, Mehaffy C, Hasan NA, Epperson LE, Hesser D, Alper S, Strong M, Flores SC, Voelker DR, Dobos KM, Chan ED. Nontuberculous Mycobacteria Show Differential Infectivity and Use Phospholipids to Antagonize LL-37. Am J Respir Cell Mol Biol 2020; 62:354-363. [PMID: 31545652 PMCID: PMC7055699 DOI: 10.1165/rcmb.2018-0278oc] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 09/20/2019] [Indexed: 12/15/2022] Open
Abstract
Comparisons of infectivity among the clinically important nontuberculous mycobacteria (NTM) species have not been explored in great depth. Rapid-growing mycobacteria, including Mycobacterium abscessus and M. porcinum, can cause indolent but progressive lung disease. Slow-growing members of the M. avium complex are the most common group of NTM to cause lung disease, and molecular approaches can now distinguish between several distinct species of M. avium complex including M. intracellulare, M. avium, M. marseillense, and M. chimaera. Differential infectivity among these NTM species may, in part, account for differences in clinical outcomes and response to treatment; thus, knowing the relative infectivity of particular isolates could increase prognostication accuracy and enhance personalized treatment. Using human macrophages, we investigated the infectivity and virulence of nine NTM species, as well as multiple isolates of the same species. We also assessed their capacity to evade killing by the antibacterial peptide cathelicidin (LL-37). We discovered that the ability of different NTM species to infect macrophages varied among the species and among isolates of the same species. Our biochemical assays implicate modified phospholipids, which may include a phosphatidylinositol or cardiolipin backbone, as candidate antagonists of LL-37 antibacterial activity. The high variation in infectivity and virulence of NTM strains suggests that more detailed microbiological and biochemical characterizations are necessary to increase our knowledge of NTM pathogenesis.
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Affiliation(s)
- Jennifer R. Honda
- Department of Biomedical Research, Center for Genes, Environment and Health, and
| | - Tamara Hess
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado
| | - Rachel Carlson
- Department of Medicine and Academic Affairs, National Jewish Health, Denver, Colorado
| | - Pitchaimani Kandasamy
- Department of Medicine and Academic Affairs, National Jewish Health, Denver, Colorado
| | | | - Grant J. Norton
- Department of Biomedical Research, Center for Genes, Environment and Health, and
| | - Ravleen Virdi
- Department of Biomedical Research, Center for Genes, Environment and Health, and
| | - M. Nurul Islam
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado
| | - Carolina Mehaffy
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado
| | - Nabeeh A. Hasan
- Department of Biomedical Research, Center for Genes, Environment and Health, and
| | - L. Elaine Epperson
- Department of Biomedical Research, Center for Genes, Environment and Health, and
| | - Danny Hesser
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado
| | - Scott Alper
- Department of Biomedical Research, Center for Genes, Environment and Health, and
- Department of Immunology and Microbiology, and
| | - Michael Strong
- Department of Biomedical Research, Center for Genes, Environment and Health, and
| | - Sonia C. Flores
- Division of Pulmonary Science and Critical Care Medicine, University of Colorado–Denver, Anschutz Medical Campus, Aurora, Colorado; and
| | - Dennis R. Voelker
- Department of Medicine and Academic Affairs, National Jewish Health, Denver, Colorado
| | - Karen M. Dobos
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado
| | - Edward D. Chan
- Department of Medicine and Academic Affairs, National Jewish Health, Denver, Colorado
- Division of Pulmonary Science and Critical Care Medicine, University of Colorado–Denver, Anschutz Medical Campus, Aurora, Colorado; and
- Department of Medicine, Denver Veterans Affairs Medical Center, Denver, Colorado
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Yoshimura Y, Goto-Inoue N, Moriyama T, Zaima N. Significant advancement of mass spectrometry imaging for food chemistry. Food Chem 2016; 210:200-11. [DOI: 10.1016/j.foodchem.2016.04.096] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 02/17/2016] [Accepted: 04/20/2016] [Indexed: 11/30/2022]
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Matsumoto S, Nakao H, Kawabe K, Nonaka M, Toyoda H, Takishima Y, Kawabata K, Yamaguchi T, Furue MK, Taki T, Okumura T, Yamazaki Y, Nakaya S, Kawasaki N, Kawasaki T. A Cytotoxic Antibody Recognizing Lacto-N-fucopentaose I (LNFP I) on Human Induced Pluripotent Stem (hiPS) Cells. J Biol Chem 2015; 290:20071-85. [PMID: 26100630 DOI: 10.1074/jbc.m115.657692] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Indexed: 01/26/2023] Open
Abstract
We have generated a mouse monoclonal antibody (R-17F, IgG1 subtype) specific to human induced pluripotent stem (hiPS)/embryonic stem (ES) cells by using a hiPS cell line as an antigen. Triple-color confocal immunostaining images of hiPS cells with R-17F indicated that the R-17F epitope was expressed exclusively and intensively on the cell membranes of hiPS cells and co-localized partially with those of SSEA-4 and SSEA-3. Lines of evidence suggested that the predominant part of the R-17F epitope was a glycolipid. Upon TLC blot of total lipid extracts from hiPS cells with R-17F, one major R-17F-positive band was observed at a slow migration position close to that of anti-blood group H1(O) antigen. MALDI-TOF-MS and MS(n) analyses of the purified antigen indicated that the presumptive structure of the R-17F antigen was Fuc-Hex-HexNAc-Hex-Hex-Cer. Glycan microarray analysis involving 13 different synthetic oligosaccharides indicated that R-17F bound selectively to LNFP I (Fucα1-2Galβ1-3GlcNAcβ1-3Galβ1-4Glc). A critical role of the terminal Fucα1-2 residue was confirmed by the selective disappearance of R-17F binding to the purified antigen upon α1-2 fucosidase digestion. Most interestingly, R-17F, when added to hiPS/ES cell suspensions, exhibited potent dose-dependent cytotoxicity. The cytotoxic effect was augmented markedly upon the addition of the secondary antibody (goat anti-mouse IgG1 antibody). R-17F may be beneficial for safer regenerative medicine by eliminating residual undifferentiated hiPS cells in hiPS-derived regenerative tissues, which are considered to be a strong risk factor for carcinogenesis.
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Affiliation(s)
- Shogo Matsumoto
- From the Research Center for Glycobiotechnology, Ritsumeikan University, Noji-Higashi, 1-1-1, Kusatsu, Shiga 525-8577, Japan
| | - Hiromi Nakao
- From the Research Center for Glycobiotechnology, Ritsumeikan University, Noji-Higashi, 1-1-1, Kusatsu, Shiga 525-8577, Japan
| | - Keiko Kawabe
- From the Research Center for Glycobiotechnology, Ritsumeikan University, Noji-Higashi, 1-1-1, Kusatsu, Shiga 525-8577, Japan, the Laboratory of Stem Cell Cultures and
| | - Motohiro Nonaka
- From the Research Center for Glycobiotechnology, Ritsumeikan University, Noji-Higashi, 1-1-1, Kusatsu, Shiga 525-8577, Japan
| | - Hidenao Toyoda
- the Laboratory of Bio-analytical Chemistry, College of Pharmaceutical Sciences, Ritsumeikan University, Shiga 525-8577, Japan
| | - Yuto Takishima
- the Laboratory of Bio-analytical Chemistry, College of Pharmaceutical Sciences, Ritsumeikan University, Shiga 525-8577, Japan
| | - Kenji Kawabata
- the Laboratory of Stem Cell Regulation, National Institutes of Biomedical Innovation, Health, and Nutrition, Osaka 567-0085, Japan
| | - Tomoko Yamaguchi
- the Laboratory of Stem Cell Regulation, National Institutes of Biomedical Innovation, Health, and Nutrition, Osaka 567-0085, Japan
| | | | - Takao Taki
- the Niigata University of Pharmacy and Applied Life Sciences, Niigata 956-0841, Japan, AGT&T Co. Ltd., Tokushima 771-1151, Japan, and
| | - Takeshi Okumura
- the Analytical and Measuring Instruments Division, Shimadzu Corp., Kyoto 604-8511, Japan
| | - Yuzo Yamazaki
- the Analytical and Measuring Instruments Division, Shimadzu Corp., Kyoto 604-8511, Japan
| | - Shuuichi Nakaya
- the Analytical and Measuring Instruments Division, Shimadzu Corp., Kyoto 604-8511, Japan
| | - Nobuko Kawasaki
- From the Research Center for Glycobiotechnology, Ritsumeikan University, Noji-Higashi, 1-1-1, Kusatsu, Shiga 525-8577, Japan
| | - Toshisuke Kawasaki
- From the Research Center for Glycobiotechnology, Ritsumeikan University, Noji-Higashi, 1-1-1, Kusatsu, Shiga 525-8577, Japan,
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: an update for 2009-2010. MASS SPECTROMETRY REVIEWS 2015; 34:268-422. [PMID: 24863367 PMCID: PMC7168572 DOI: 10.1002/mas.21411] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 07/16/2013] [Accepted: 07/16/2013] [Indexed: 05/07/2023]
Abstract
This review is the sixth update of the original article published in 1999 on the application of MALDI mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2010. General aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, arrays and fragmentation are covered in the first part of the review and applications to various structural typed constitutes the remainder. The main groups of compound that are discussed in this section are oligo and polysaccharides, glycoproteins, glycolipids, glycosides and biopharmaceuticals. Many of these applications are presented in tabular form. Also discussed are medical and industrial applications of the technique, studies of enzyme reactions and applications to chemical synthesis.
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Affiliation(s)
- David J. Harvey
- Department of BiochemistryOxford Glycobiology InstituteUniversity of OxfordOxfordOX1 3QUUK
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Taki T. Bio-recognition and functional lipidomics by glycosphingolipid transfer technology. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2013; 89:302-20. [PMID: 23883610 PMCID: PMC3758962 DOI: 10.2183/pjab.89.302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 05/10/2013] [Indexed: 06/02/2023]
Abstract
Through glycosphingolipid biochemical research, we developed two types of transcription technologies. One is a biochemical transfer of glycosphingolipids to peptides. The other is a physicochemical transfer of glycosphingolipids in silica gel to the surface of a plastic membrane. Using the first technology, we could prepare peptides which mimic the shapes of glycosphingolipid molecules by biopanning with a phage-displayed peptide library and anti-glycosphingolipid antibodies as templates. The peptides thus obtained showed biological properties and functions similar to those of the original glycosphingolipids, such as lectin binding, glycosidase modulation, inhibition of tumor metastasis and immune response against the original antigen glycosphingolipid, and we named them glyco-replica peptides. The results showed that the newly prepared peptides could be used effectively as a bio-recognition system and suggest that the glyco-replica peptides can be widely applied to therapeutic fields. Using the second technology, we could establish a functional lipidomics with a thin-layer chromatography-blot/matrix-assisted laser desorption ionization-time of flight mass spectrometry (TLC-Blot/MALDI-TOF MS) system. By transferring glycosphingolipids on a plastic membrane surface from a TLC plate, innovative biochemical approaches such as simple purification of individual glycosphingolipids, binding studies, and enzyme reactions could be developed. The combinations of these biochemical approaches and MALDI-TOF MS on the plastic membrane could provide new strategies for glycosphingolipid science and the field of lipidomics. In this review, typical applications of these two transfer technologies are introduced.(Communicated by Kunihiko SUZUKI, M.J.A.).
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Affiliation(s)
- Takao Taki
- Tokushima Institute, Otsuka Pharmaceutical Co., Ltd., Tokushima, Japan.
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Taki T. An Approach to Glycobiology from Glycolipidomics: Ganglioside Molecular Scanning in the Brains of Patients with Alzheimer’s Disease by TLC-Blot/Matrix Assisted Laser Desorption/Ionization-Time of Flight MS. Biol Pharm Bull 2012; 35:1642-7. [DOI: 10.1248/bpb.b12-00400] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Takao Taki
- Tokushima Institute, Otsuka Pharmaceutical Co., Ltd
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Han X, Yang K, Gross RW. Multi-dimensional mass spectrometry-based shotgun lipidomics and novel strategies for lipidomic analyses. MASS SPECTROMETRY REVIEWS 2012; 31:134-78. [PMID: 21755525 PMCID: PMC3259006 DOI: 10.1002/mas.20342] [Citation(s) in RCA: 395] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Revised: 05/20/2011] [Accepted: 05/20/2011] [Indexed: 05/05/2023]
Abstract
Since our last comprehensive review on multi-dimensional mass spectrometry-based shotgun lipidomics (Mass Spectrom. Rev. 24 (2005), 367), many new developments in the field of lipidomics have occurred. These developments include new strategies and refinements for shotgun lipidomic approaches that use direct infusion, including novel fragmentation strategies, identification of multiple new informative dimensions for mass spectrometric interrogation, and the development of new bioinformatic approaches for enhanced identification and quantitation of the individual molecular constituents that comprise each cell's lipidome. Concurrently, advances in liquid chromatography-based platforms and novel strategies for quantitative matrix-assisted laser desorption/ionization mass spectrometry for lipidomic analyses have been developed. Through the synergistic use of this repertoire of new mass spectrometric approaches, the power and scope of lipidomics has been greatly expanded to accelerate progress toward the comprehensive understanding of the pleiotropic roles of lipids in biological systems.
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Affiliation(s)
- Xianlin Han
- Sanford-Burnham Medical Research Institute, Orlando, FL 32827, USA.
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High-performance thin-layer chromatography/mass spectrometry for the analysis of neutral glycosphingolipids. Biochim Biophys Acta Mol Cell Biol Lipids 2011; 1811:861-74. [PMID: 21740982 DOI: 10.1016/j.bbalip.2011.06.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Revised: 06/08/2011] [Accepted: 06/15/2011] [Indexed: 02/04/2023]
Abstract
This mini-review summarizes the protocol we have developed for the analysis of neutral glycosphingolipids (GSLs) by high-performance thin layer chromatography (HPTLC)-mass spectrometry (MS). We also present results obtained using this glycolipidomic approach to study neutral GSLs from mouse kidney, spleen, and small intestine. Finally, we discuss what is required for further development of this method, as well as what is expected for the future of glycolipid biology.
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Valdes-Gonzalez T, Goto-Inoue N, Hirano W, Ishiyama H, Hayasaka T, Setou M, Taki T. New approach for glyco- and lipidomics - Molecular scanning of human brain gangliosides by TLC-Blot and MALDI-QIT-TOF MS. J Neurochem 2011; 116:678-83. [DOI: 10.1111/j.1471-4159.2010.07152.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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