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Watanabe R, Tsuji D, Tanaka H, Uno MS, Ohnishi Y, Kitaguchi S, Matsugu T, Nakae R, Teramoto H, Yamamoto K, Shinohara Y, Hirokawa T, Okino N, Ito M, Itoh K. Lysoglycosphingolipids have the ability to induce cell death through direct PI3K inhibition. J Neurochem 2023; 167:753-765. [PMID: 37975558 DOI: 10.1111/jnc.16012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/04/2023] [Accepted: 10/31/2023] [Indexed: 11/19/2023]
Abstract
Sphingolipidoses are inherited metabolic disorders associated with glycosphingolipids accumulation, neurodegeneration, and neuroinflammation leading to severe neurological symptoms. Lysoglycosphingolipids (lysoGSLs), also known to accumulate in the tissues of sphingolipidosis patients, exhibit cytotoxicity. LysoGSLs are the possible pathogenic cause, but the mechanisms are still unknown in detail. Here, we first show that lysoGSLs are potential inhibitors of phosphoinositide 3-kinase (PI3K) to reduce cell survival signaling. We found that phosphorylated Akt was commonly reduced in fibroblasts from patients with sphingolipidoses, including GM1/GM2 gangliosidoses and Gaucher's disease, suggesting the contribution of lysoGSLs to the pathogenesis. LysoGSLs caused cell death and decreased the level of phosphorylated Akt as in the patient fibroblasts. Extracellularly administered lysoGM1 permeated the cell membrane to diffusely distribute in the cytoplasm. LysoGM1 and lysoGM2 also inhibited the production of phosphatidylinositol-(3,4,5)-triphosphate and the translocation of Akt from the cytoplasm to the plasma membrane. We also predicted that lysoGSLs could directly bind to the catalytic domain of PI3K by in silico docking study, suggesting that lysoGSLs could inhibit PI3K by directly interacting with PI3K in the cytoplasm. Furthermore, we revealed that the increment of lysoGSLs amounts in the brain of sphingolipidosis model mice correlated with the neurodegenerative progression. Our findings suggest that the down-regulation of PI3K/Akt signaling by direct interaction of lysoGSLs with PI3K in the brains is a neurodegenerative mechanism in sphingolipidoses. Moreover, we could propose the intracellular PI3K activation or inhibition of lysoGSLs biosynthesis as novel therapeutic approaches for sphingolipidoses because lysoGSLs should be cell death mediators by directly inhibiting PI3K, especially in neurons.
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Affiliation(s)
- Ryosuke Watanabe
- Department of Medicinal Biotechnology, Graduate school of Pharmaceutical Science, Tokushima University, Tokushima, Japan
| | - Daisuke Tsuji
- Department of Medicinal Biotechnology, Graduate school of Pharmaceutical Science, Tokushima University, Tokushima, Japan
- Department of Pharmacy, Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan
| | - Hiroki Tanaka
- Department of Medicinal Biotechnology, Graduate school of Pharmaceutical Science, Tokushima University, Tokushima, Japan
| | - Michael Shintaro Uno
- Department of Medicinal Biotechnology, Graduate school of Pharmaceutical Science, Tokushima University, Tokushima, Japan
| | - Yukiya Ohnishi
- Department of Medicinal Biotechnology, Graduate school of Pharmaceutical Science, Tokushima University, Tokushima, Japan
| | - Shindai Kitaguchi
- Department of Medicinal Biotechnology, Graduate school of Pharmaceutical Science, Tokushima University, Tokushima, Japan
| | - Tsuyoshi Matsugu
- Department of Medicinal Biotechnology, Graduate school of Pharmaceutical Science, Tokushima University, Tokushima, Japan
| | - Ryuto Nakae
- Department of Medicinal Biotechnology, Graduate school of Pharmaceutical Science, Tokushima University, Tokushima, Japan
| | - Hiromi Teramoto
- Department of Medicinal Biotechnology, Graduate school of Pharmaceutical Science, Tokushima University, Tokushima, Japan
| | - Kei Yamamoto
- Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Japan
| | - Yasuo Shinohara
- Institute for Genome Research, Institute of Advanced Medical Sciences, Tokushima University, Tokushima, Japan
- Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima, Japan
| | - Takatsugu Hirokawa
- Molecular Profiling Research Center for Drug Discovery (molprof), National Institute of Advanced Industrial Science and Technology (AIST), Tokyo, Japan
| | - Nozomu Okino
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Makoto Ito
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Kohji Itoh
- Department of Medicinal Biotechnology, Graduate school of Pharmaceutical Science, Tokushima University, Tokushima, Japan
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Ito M, Ishibashi Y, Watanabe T, Iwaki J, Kurita T, Okino N. Assays and Utilization of Enzymes Involved in Glycolipid Metabolism in Bacteria and Fungi. Methods Mol Biol 2023; 2613:229-256. [PMID: 36587083 DOI: 10.1007/978-1-0716-2910-9_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Microbial glycosphingolipid (GSL)-degrading enzymes with unique specificity are useful tools for GSL research. On the other hand, some microbial glycolipids, not only GSLs but also steryl glucosides, are closely related to pathogenicity, and, thus, the metabolism of microbial glycolipids is attracting attention as a target for antibiotics. This chapter describes the assays and utilization of microbial enzymes useful for glycolipid research and those involved in pathogenicity or host immune reactions.
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Affiliation(s)
- Makoto Ito
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.
| | - Yohei Ishibashi
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Takashi Watanabe
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.,Department of Pathophysiology and Metabolism, Kawasaki Medical School, Okayama, Japan
| | - Jun Iwaki
- Tokyo Chemical Industry Co., Ltd., Tokyo, Japan
| | | | - Nozomu Okino
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.
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3
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Design, synthesis and neurite outgrowth activity of novel ganglioside GM1 derivatives by remodeling of the fatty acid moiety. Eur J Med Chem 2022; 241:114636. [DOI: 10.1016/j.ejmech.2022.114636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/21/2022] [Accepted: 07/25/2022] [Indexed: 11/22/2022]
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4
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Endo I, Watanabe T, Miyamoto T, Monjusho-Goda H, Ohara J, Hayashi M, Hama Y, Ishibashi Y, Okino N, Ito M. C4-monomethylsterol β-glucoside and its synthase in Aurantiochytrium limacinum mh0186. Glycobiology 2021; 31:1350-1363. [PMID: 34224567 DOI: 10.1093/glycob/cwab070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 11/14/2022] Open
Abstract
Thraustochytrids, unicellular marine protists, synthesize polyunsaturated fatty acids (PUFAs) and PUFA-containing phospholipids; however, little is known about their glycolipids and their associated metabolism. Here, we report two glycolipids (GL-A, B) and their synthases in Aurantiochytrium limacinum mh0186. Two glycolipids were purified from A. limacinum mh0186, and they were determined by gas chromatography, mass spectrometry and two-dimensional nuclear magnetic resonance to be 3-O-β-D-glucopyranosyl-stigmasta-5,7,22-triene (GL-A) and 3-O-β-D-glucopyranosyl-4α-methyl-stigmasta-7,22-diene (GL-B), both of which are sterol β-glucosides (β-SGs); the structure of GL-B has not been reported thus far. Seven candidate genes responsible for the synthesis of these β-SGs were extracted from the draft genome database of A. limacinum using the yeast sterol β-glucosyltransferase (SGT; EC 2.4.1.173) sequence as a query. Expression analysis using Saccharomyces cerevisiae revealed that two gene products (AlSGT-1 and 2) catalyze the transfer of glucose from UDP-glucose to sterols, generating sterylglucosides (SGs). Compared to AlSGT-1, AlSGT-2 exhibited wide specificity for sterols and used C4-monomethylsterol to synthesize GL-B. The disruption of alsgt-2 but not alsgt-1 in strain mh0186 resulted in a decrease in total SG and almost complete loss of GL-B, indicating that AlSGT-2 is responsible for the synthesis of β-SGs in A. limacinum mh0186, especially GL-B, which possesses a unique sterol structure.
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Affiliation(s)
- Ikumi Endo
- Department of Bioscience and Biotechnology
| | | | - Tomofumi Miyamoto
- Graduate School of Pharmaceutical Science, Kyushu University, Fukuoka 812-8582, Japan
| | | | | | - Masahiro Hayashi
- Department of Marine Biology and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - Yoichiro Hama
- Applied Biochemistry and Food Science Course, Faculty of Agriculture, Saga University, 1 Honjo, Saga 840-8502, Japan
| | | | | | - Makoto Ito
- Department of Bioscience and Biotechnology.,Innovative Bio-Architecture Center, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka 819-0395
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5
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Hunter CD, Guo T, Daskhan G, Richards MR, Cairo CW. Synthetic Strategies for Modified Glycosphingolipids and Their Design as Probes. Chem Rev 2018; 118:8188-8241. [DOI: 10.1021/acs.chemrev.8b00070] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Carmanah D. Hunter
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Tianlin Guo
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Gour Daskhan
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Michele R. Richards
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Christopher W. Cairo
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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Abstract
Labeled gangliosides are invaluable tools to study their transport and metabolism within cells as well as to determine their distribution in membranes, and their interaction with membrane lipids and proteins. Here I describe established procedures to synthesize ganglioside derivatives with a fluorescent tag either attached to its sialooligosaccharide or ceramide portion. These procedures are chosen as to minimize the integrity of the ganglioside molecule and hence, to leave their native skeleton formally intact. The α-position of the stearic acid residue is favorable for the attachment both of hydrophilic and of lipophilic dyes. In some other cases, and starting from lyso-gangliosides, procedures are described by which a fluorescent tag bound to a short acyl chain replaces the native acyl chain of gangliosides.
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Affiliation(s)
- Günter Schwarzmann
- LIMES, c/o Kekulé-Institut f. Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany.
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Spacil Z, Babu Kumar A, Liao HC, Auray-Blais C, Stark S, Suhr TR, Scott CR, Turecek F, Gelb MH. Sulfatide Analysis by Mass Spectrometry for Screening of Metachromatic Leukodystrophy in Dried Blood and Urine Samples. Clin Chem 2015; 62:279-86. [PMID: 26585924 DOI: 10.1373/clinchem.2015.245159] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 11/05/2015] [Indexed: 11/06/2022]
Abstract
BACKGROUND Metachromatic leukodystrophy (MLD) is an autosomal recessive disorder caused by deficiency in arylsulfatase A activity, leading to accumulation of sulfatide substrates. Diagnostic and monitoring procedures include demonstration of reduced arylsulfatase A activity in peripheral blood leukocytes or detection of sulfatides in urine. However, the development of a screening test is challenging because of instability of the enzyme in dried blood spots (DBS), the widespread occurrence of pseudodeficiency alleles, and the lack of available urine samples from newborn screening programs. METHODS We measured individual sulfatide profiles in DBS and dried urine spots (DUS) from MLD patients with LC-MS/MS to identify markers with the discriminatory power to differentiate affected individuals from controls. We also developed a method for converting all sulfatide molecular species into a single species, allowing quantification in positive-ion mode upon derivatization. RESULTS In DBS from MLD patients, we found up to 23.2-fold and 5.1-fold differences in total sulfatide concentrations for early- and late-onset MLD, respectively, compared with controls and pseudodeficiencies. Corresponding DUS revealed up to 164-fold and 78-fold differences for early- and late-onset MLD patient samples compared with controls. The use of sulfatides converted to a single species simplified the analysis and increased detection sensitivity in positive-ion mode, providing a second option for sulfatide analysis. CONCLUSIONS This study of sulfatides in DBS and DUS suggests the feasibility of the mass spectrometry method for newborn screening of MLD and sets the stage for a larger-scale newborn screening pilot study.
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Affiliation(s)
| | | | | | - Christiane Auray-Blais
- Clinical Research Center, Centre Hospitalier Universitaire de Sherbrooke, and Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Samantha Stark
- National Referral Laboratory, Genetics and Molecular Pathology, South Australia Pathology, Women's and Children's Hospital, Adelaide, Australia
| | | | | | | | - Michael H Gelb
- Department of Chemistry, Department of Biochemistry, University of Washington, Seattle, WA;
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8
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Huang FT, Han YB, Feng Y, Yang GY. A facile method for controlling the reaction equilibrium of sphingolipid ceramide N-deacylase for lyso-glycosphingolipid production. J Lipid Res 2015; 56:1836-42. [PMID: 26130766 DOI: 10.1194/jlr.d061176] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Indexed: 11/20/2022] Open
Abstract
Lyso-glycosphingolipids (lyso-GSLs), the N-deacylated forms of glycosphingolipids (GSLs), are important synthetic intermediates for the preparation of GSL analogs. Although lyso-GSLs can be produced by hydrolyzing natural GSLs using sphingolipid ceramide N-deacylase (SCDase), the yield for this reaction is usually low because SCDase also catalyzes the reverse reaction, ultimately establishing an equilibrium between hydrolysis and synthesis. In the present study, we developed an efficient method for controlling the reaction equilibrium by introducing divalent metal cation and detergent in the enzymatic reaction system. In the presence of both Ca(2+) and taurodeoxycholate hydrate, the generated fatty acids were precipitated by the formation of insoluble stearate salts and pushing the reaction equilibrium toward hydrolysis. The yield of GM1 hydrolysis can be achieved as high as 96%, with an improvement up to 45% compared with the nonoptimized condition. In preparative scale, 75 mg of lyso-GM1 was obtained from 100 mg of GM1 with a 90% yield, which is the highest reported yield to date. The method can also be used for the efficient hydrolysis of a variety of GSLs and sphingomyelin. Thus, this method should serve as a facile, easily scalable, and general tool for lyso-GSL production to facilitate further GSL research.
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Affiliation(s)
- Feng-Tao Huang
- State Key Laboratory of Microbial Metabolism and Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yun-Bin Han
- State Key Laboratory of Microbial Metabolism and Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yan Feng
- State Key Laboratory of Microbial Metabolism and Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Guang-Yu Yang
- State Key Laboratory of Microbial Metabolism and Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China Shanghai Collaborative Innovation Center for Biomanufacturing (SCICB), East China University of Science and Technology, Shanghai 200237, China
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9
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Comprehensive characterization of sphingolipid ceramide N-deacylase for the synthesis and fatty acid remodeling of glycosphingolipids. Appl Microbiol Biotechnol 2015; 99:6715-26. [DOI: 10.1007/s00253-015-6421-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 01/14/2015] [Accepted: 01/19/2015] [Indexed: 10/24/2022]
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10
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Gantner M, Schwarzmann G, Sandhoff K, Kolter T. Partial synthesis of ganglioside and lysoganglioside lipoforms as internal standards for MS quantification. J Lipid Res 2014; 55:2692-704. [PMID: 25341943 DOI: 10.1194/jlr.d054734] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Within recent years, ganglioside patterns have been increasingly analyzed by MS. However, internal standards for calibration are only available for gangliosides GM1, GM2, and GM3. For this reason, we prepared homologous internal standards bearing nonnatural fatty acids of the major mammalian brain gangliosides GM1, GD1a, GD1b, GT1b, and GQ1b, and of the tumor-associated gangliosides GM2 and GD2. The fatty acid moieties were incorporated after selective chemical or enzymatic deacylation of bovine brain gangliosides. For modification of the sphingoid bases, we developed a new synthetic method based on olefin cross metathesis. This method was used for the preparation of a lyso-GM1 and a lyso-GM2 standard. The total yield of this method was 8.7% for the synthesis of d17:1-lyso-GM1 from d20:1/18:0-GM1 in four steps. The title compounds are currently used as calibration substances for MS quantification and are also suitable for functional studies.
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Affiliation(s)
- Martin Gantner
- Life & Medical Sciences, Membrane Biology and Lipid Biochemistry Unit, Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, D-53115 Bonn, Germany
| | - Günter Schwarzmann
- Life & Medical Sciences, Membrane Biology and Lipid Biochemistry Unit, Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, D-53115 Bonn, Germany
| | - Konrad Sandhoff
- Life & Medical Sciences, Membrane Biology and Lipid Biochemistry Unit, Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, D-53115 Bonn, Germany
| | - Thomas Kolter
- Life & Medical Sciences, Membrane Biology and Lipid Biochemistry Unit, Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, D-53115 Bonn, Germany
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11
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Zhang Y, Niu Y, Yao F, Dai B, Wang Q, Yu LL. Preparation of novel cross-linked and octylated caseinates using a biphasic enzymatic procedure and their functional properties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:8655-8662. [PMID: 25090285 DOI: 10.1021/jf5024998] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A novel microbial transglutaminase-catalyzed aqueous-organic biphasic reaction system was successfully developed to prepare caseinate derivatives by cross-linking and incorporating nonpolar octyl tails for the first time. SDS-PAGE and (1)H NMR analysis confirmed that cross-linking and octyl conjugation occurred simultaneously. The octyl substitution degree (SD) was measured by (1)H NMR and used as an index to determine a suitable reaction condition. It was found that at the condition of 0.125% (w/v) protein concentration and 6 h of reaction time, the modified caseinate had the highest SD of 28.96%. The modified caseinate also had an increased surface hydrophobicity, better emulsifying activity, and improved thermal and salt stabilities. However, its emulsion stability or in vitro enzymatic digestibility was slightly lower than that of the native caseinate.
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Affiliation(s)
- Yaqiong Zhang
- Institute of Food and Nutraceutical Science, School of Agriculture and Biology and ‡Instrumental Analysis Center, Shanghai Jiao Tong University , Shanghai 200240, China
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12
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Nagatsuka T, Uzawa H, Sato K, Kondo S, Izumi M, Yokoyama K, Ohsawa I, Seto Y, Neri P, Mori H, Nishida Y, Saito M, Tamiya E. Localized surface plasmon resonance detection of biological toxins using cell surface oligosaccharides on glyco chips. ACS APPLIED MATERIALS & INTERFACES 2013; 5:4173-80. [PMID: 23668627 DOI: 10.1021/am4002937] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We have detected biological toxins using localized surface plasmon resonance (LSPR) and synthetic glycosyl ceramides (β-lactoside, globosyl trisaccharide (Gb3), or GM1 pentasaccharide) attached to gold (Au) nanoparticles. The particle diameters ranged from 5-100 nm. The detection sensitivity for three toxins (ricin, Shiga toxin, and cholera toxin) was found to depend not only on the attached glycoside but also on the diameter of the Au nanoparticles. For the detection of ricin, the 20-nm β-lactoside-coated Au nanoparticle exhibited the highest LSPR response, whereas 40-nm Gb3- and GM1-coated Au nanoparticles gave the best results for Shiga toxin and cholera toxin, respectively. In addition, a blocking process on the nanoparticle surface greatly improved the detection sensitivity for cholera toxin. The LSPR system enabled us to detect ricin at 30 ng/mL, Shiga toxin at 10 ng/mL, and the cholera toxin at 20 ng/mL.
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Affiliation(s)
- Takehiro Nagatsuka
- Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Japan
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13
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Frank S, van Die I, Geyer R. Structural characterization of Schistosoma mansoni adult worm glycosphingolipids reveals pronounced differences with those of cercariae. Glycobiology 2012; 22:676-95. [DOI: 10.1093/glycob/cws004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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14
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Arigi E, Blixt O, Buschard K, Clausen H, Levery SB. Design of a covalently bonded glycosphingolipid microarray. Glycoconj J 2011; 29:1-12. [PMID: 22102144 DOI: 10.1007/s10719-011-9359-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2011] [Revised: 10/03/2011] [Accepted: 10/28/2011] [Indexed: 11/30/2022]
Abstract
Glycosphingolipids (GSLs) are well known ubiquitous constituents of all eukaryotic cell membranes, yet their normal biological functions are not fully understood. As with other glycoconjugates and saccharides, solid phase display on microarrays potentially provides an effective platform for in vitro study of their functional interactions. However, with few exceptions, the most widely used microarray platforms display only the glycan moiety of GSLs, which not only ignores potential modulating effects of the lipid aglycone, but inherently limits the scope of application, excluding, for example, the major classes of plant and fungal GSLs. In this work, a prototype "universal" GSL-based covalent microarray has been designed, and preliminary evaluation of its potential utility in assaying protein-GSL binding interactions investigated. An essential step in development involved the enzymatic release of the fatty acyl moiety of the ceramide aglycone of selected mammalian GSLs with sphingolipid N-deacylase (SCDase). Derivatization of the free amino group of a typical lyso-GSL, lyso-G(M1), with a prototype linker assembled from succinimidyl-[(N-maleimidopropionamido)-diethyleneglycol] ester and 2-mercaptoethylamine, was also tested. Underivatized or linker-derivatized lyso-GSL were then immobilized on N-hydroxysuccinimide- or epoxide-activated glass microarray slides and probed with carbohydrate binding proteins of known or partially known specificities (i.e., cholera toxin B-chain; peanut agglutinin, a monoclonal antibody to sulfatide, Sulph 1; and a polyclonal antiserum reactive to asialo-G(M2)). Preliminary evaluation of the method indicated successful immobilization of the GSLs, and selective binding of test probes. The potential utility of this methodology for designing covalent microarrays that incorporate GSLs for serodiagnosis is discussed.
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Affiliation(s)
- Emma Arigi
- Department of Cellular and Molecular Medicine, University of Copenhagen, Denmark
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15
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Frank S, Geyer H, Geyer R. Microscale Analysis of Glycosphingolipids fromSchistosoma mansoniCercariae. J Carbohydr Chem 2011. [DOI: 10.1080/07328303.2011.600490] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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16
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Nabetani T, Makino A, Hullin-Matsuda F, Hirakawa TA, Takeoka S, Okino N, Ito M, Kobayashi T, Hirabayashi Y. Multiplex analysis of sphingolipids using amine-reactive tags (iTRAQ). J Lipid Res 2011; 52:1294-1302. [PMID: 21487068 DOI: 10.1194/jlr.d014621] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Ceramides play a crucial role in divergent signaling events, including differentiation, senescence, proliferation, and apoptosis. Ceramides are a minor lipid component in terms of content; thus, highly sensitive detection is required for accurate quantification. The recently developed isobaric tags for relative and absolute quantitation (iTRAQ) method enables a precise comparison of both protein and aminophospholipids. However, iTRAQ tagging had not been applied to the determination of sphingolipids. Here we report a method for the simultaneous measurement of multiple ceramide and monohexosylceramide samples using iTRAQ tags. Samples were hydrolyzed with sphingolipid ceramide N-deacylase (SCDase) to expose the free amino group of the sphingolipids, to which the N-hydroxysuccinimide group of iTRAQ reagent was conjugated. The reaction was performed in the presence of a cleavable detergent, 3-[3-(1,1-bisalkyloxyethyl)pyridine-1-yl]propane-1-sulfonate (PPS) to both improve the hydrolysis and ensure the accuracy of the mass spectrometry analysis performed after iTRAQ labeling. This method was successfully applied to the profiling of ceramides and monohexosylceramides in sphingomyelinase-treated Madin Darby canine kidney (MDCK) cells and apoptotic Jurkat cells.
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Affiliation(s)
- Takuji Nabetani
- Lipid Biology Laboratory, Advanced Science Institute, Brain Science Institute, RIKEN, Wako, Saitama 351-0198, Japan
| | - Asami Makino
- Lipid Biology Laboratory, Advanced Science Institute, Brain Science Institute, RIKEN, Wako, Saitama 351-0198, Japan
| | - Françoise Hullin-Matsuda
- Lipid Biology Laboratory, Advanced Science Institute, Brain Science Institute, RIKEN, Wako, Saitama 351-0198, Japan; INSERM U1060, université Lyon1, INSA-Lyon, 69621 Villeurbanne, France
| | - Taka-Aki Hirakawa
- Lipid Biology Laboratory, Advanced Science Institute, Brain Science Institute, RIKEN, Wako, Saitama 351-0198, Japan; Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University (TWIns), Shinjuku-ku, Tokyo 162-8480, Japan
| | - Shinji Takeoka
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University (TWIns), Shinjuku-ku, Tokyo 162-8480, Japan
| | - Nozomu Okino
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Higashi-ku, Fukuoka 812-8581, Japan
| | - Makoto Ito
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Higashi-ku, Fukuoka 812-8581, Japan
| | - Toshihide Kobayashi
- Lipid Biology Laboratory, Advanced Science Institute, Brain Science Institute, RIKEN, Wako, Saitama 351-0198, Japan; INSERM U1060, université Lyon1, INSA-Lyon, 69621 Villeurbanne, France.
| | - Yoshio Hirabayashi
- Laboratory for Molecular Membrane Neuroscience, Brain Science Institute, RIKEN, Wako, Saitama 351-0198, Japan
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17
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Li Y, Arigi E, Eichert H, Levery SB. Mass spectrometry of fluorocarbon-labeled glycosphingolipids. JOURNAL OF MASS SPECTROMETRY : JMS 2010; 45:504-519. [PMID: 20301184 DOI: 10.1002/jms.1734] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A method for generation of novel fluorocarbon derivatives of glycosphingolipids (GSLs) with high affinity for fluorocarbon phases has been developed, and their potential applications to mass spectrometry (MS)-based methodologies for glycosphingolipidomics have been investigated. Sphingolipid ceramide N-deacylase (SCDase) is used to remove the fatty acid from the ceramide moiety, after which a fluorocarbon-rich substituent (F-Tag) is incorporated at the free amine of the sphingoid. In initial trials, a neutral GSL, globotriaosylceramide (Gb(3)Cer), three purified bovine brain gangliosides, and four fungal glycosylinositol phosphorylceramides (GIPCs) were de-N-acylated, derivatized by prototype F-Tags, and recovered by solid phase extraction on fluorocarbon-derivatized silica (F-SPE). The efficacy of SCDase treatment of GIPCs was here demonstrated for the first time. Compatibility with subsequent per-N,O-methylation was established for the F-tagged Gb(3) Cer and purified gangliosides, and extensive mass spectra (MS(1) and MS(2)) consistent with all of the expected products were acquired. The potential use of F-tagged derivatives for a comprehensive MS based profiling application was then demonstrated on a crude ganglioside mixture extracted from bovine brain. Finally, a simple trial in microarray format demonstrated fixation of F-tagged G(M1) ganglioside to a fluorous glass surface, with the glycan intact and available for interaction with a fluorescent derivative of cholera toxin B chain. The methods described thus provide a new avenue for rapid GSL recovery or cleanup, potentially compatible with a variety of platforms for mass spectrometric profiling and structure analysis, as well as parallel analysis of functional interactions.
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Affiliation(s)
- Yunsen Li
- University of New Hampshire, Durham, NH 03824-3598, USA
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18
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Uzawa H, Ohga K, Shinozaki Y, Ohsawa I, Nagatsuka T, Seto Y, Nishida Y. A novel sugar-probe biosensor for the deadly plant proteinous toxin, ricin. Biosens Bioelectron 2008; 24:929-33. [DOI: 10.1016/j.bios.2008.07.049] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2008] [Revised: 07/04/2008] [Accepted: 07/21/2008] [Indexed: 10/21/2022]
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19
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Nakagawa T, Morotomi A, Tani M, Sueyoshi N, Komori H, Ito M. C18:3-GM1a induces apoptosis in Neuro2a cells: enzymatic remodeling of fatty acyl chains of glycosphingolipids. J Lipid Res 2005; 46:1103-12. [PMID: 15772422 DOI: 10.1194/jlr.m400516-jlr200] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
GM1a [Gal beta1-3GalNAc beta1-4(NeuAc alpha2-3)Gal beta1-4Glc beta1-1Cer] is known to support and protect neuronal functions. However, we report that alpha-linolenic acid-containing GM1a (C18:3-GM1a), which was prepared using the reverse hydrolysis reaction of sphingolipid ceramide N-deacylase, induced apoptosis in neuronal cells. Intranucleosomal DNA fragmentation, chromatin condensation, and caspase activation, all typical features of apoptosis, were observed when mouse neuroblastoma Neuro2a cells were cultured with C18:3-GM1a but not GM1a containing stearic acid (C18:0) or oleic acid (C18:1). The phenotype of Neuro2a cells induced by C18:3-GM1a was similar to that evoked by lyso-GM1a. However, lyso-GM1a caused a complete disruption of lipid microdomains of Neuro2a cells and hemolysis of sheep erythrocytes, whereas C18:3-GM1a did neither. C18:3-GM1a, but not lyso-GM1a, was found to be abundant in lipid microdomains after the removal of loosely bound GM1a by BSA. The activation of stress-activated protein kinase/c-Jun N-terminal kinase in Neuro2a cells was observed with lyso-GM1a but not C18:3-GM1a. These results indicate that the mechanism of apoptosis induced by C18:3-GM1a is distinct from that caused by lyso-GM1a. This study also clearly shows that fatty acid composition of gangliosides significantly affected their pharmacological activities when added to the cell cultures and suggests why naturally occurring gangliosides do not possess polyunsaturated fatty acids as a major constituent.
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MESH Headings
- Animals
- Apoptosis
- Blotting, Western
- Caspase 3
- Caspases/metabolism
- Cattle
- Cell Line, Tumor
- Cell Nucleus/metabolism
- Cells, Cultured
- Centrifugation, Density Gradient
- Ceramides/chemistry
- Cholera Toxin/pharmacology
- Chromatin/metabolism
- Chromatography, Thin Layer
- DNA Fragmentation
- Dose-Response Relationship, Drug
- Electrophoresis, Polyacrylamide Gel
- Enzyme Activation
- Erythrocytes/cytology
- Erythrocytes/metabolism
- Fatty Acids/metabolism
- Fatty Acids, Unsaturated/metabolism
- G(M1) Ganglioside/chemistry
- Gangliosides/chemistry
- Glycosphingolipids/chemistry
- Hydrolysis
- MAP Kinase Signaling System
- Membrane Microdomains
- Mice
- Microscopy, Fluorescence
- Protein Structure, Tertiary
- Pseudomonas/metabolism
- Sheep
- Spectrometry, Mass, Electrospray Ionization
- Sucrose/pharmacology
- Time Factors
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Affiliation(s)
- Tetsuto Nakagawa
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
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20
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Sandhoff R, Geyer R, Jennemann R, Paret C, Kiss E, Yamashita T, Gorgas K, Sijmonsma TP, Iwamori M, Finaz C, Proia RL, Wiegandt H, Gröne HJ. Novel class of glycosphingolipids involved in male fertility. J Biol Chem 2005; 280:27310-8. [PMID: 15917254 DOI: 10.1074/jbc.m502775200] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Mice require testicular glycosphingolipids (GSLs) for proper spermatogenesis. Mutant mice strains deficient in specific genes encoding biosynthetic enzymes of the GSL pathway including Galgt1 (encoding GM2 synthase) and Siat9 (encoding GM3 synthase) have been established lacking various overlapping subsets of GSLs. Although male Galgt1-/- mice are infertile, male Siat9-/- mice are fertile. Interestingly, GSLs thought to be essential for male spermatogenesis are not synthesized in either of these mice strains. Hence, these GSLs cannot account for the different phenotypes. A novel class of GSLs was observed composed of eight fucosylated molecules present in fertile but not in infertile mutant mice. These GSLs contain polyunsaturated very long chain fatty acid residues in their ceramide moieties. GSLs of this class are expressed differentially in testicular germ cells. More importantly, the neutral subset of this new GSL class strictly correlates with male fertility. These data implicate polyunsaturated, fucosylated GSLs as essential for spermatogenesis and male mouse fertility.
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Affiliation(s)
- Roger Sandhoff
- Department of Cellular and Molecular Pathology, German Cancer Research Center, Heidelberg, Germany.
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21
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Beermann C, Röhrig AK, Boehm G. Chemical and enzymatic transacylation of amide-linked FA of buttermilk gangliosides. Lipids 2003; 38:855-64. [PMID: 14577665 DOI: 10.1007/s11745-003-1136-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The goal of this work was to alter the composition of amide-linked FA of bovine buttermilk gangliosides, particularly the disialoganglioside GD3, to adjust lipid sources to special food specifications and pharmacological or cosmetic applications. The chemical transacylation of amide-linked FA of buttermilk gangliosides with free arachidic acid (20:0) by a combination of basic hydrolysis and diethylphosphorylcyanide/triethylamine-catalyzed reacylation was compared to an enzymatic sphingolipid ceramide N-deacylase (EC 3.5.1.23)-catalyzed FA exchange by GC analysis and nano electrospray ionization-MS. The buttermilk predominantly contained the disialoganglioside GD3 and the monosialoganglioside GM3. The heterogeneity of FA that are incorporated into gangliosides, mainly palmitic acid (29.4 wt%), stearic acid (16.9 wt%), oleic acid (17.8 wt%), and myristic acid (8.5 wt%), was effectively altered by both transesterification techniques. Arachidic acid, which was not integrated into the initial buttermilk gangliosides, was transacylated to total gangliosides with 23.2 wt% (GD3, 6.7 wt%) by the chemical process and with 8.7 wt% (GD3, 13.8 wt%) when catalyzed enzymatically. Mainly behenic acid and lignoceric acid of GD3 were exchanged chemically, and stearic acid was exchanged by the enzymatic process. This observation might depend on hydrolytic sensitivities of amide-linked very long chain saturated FA or specific enzyme subtrate affinities, respectively. Results of chemical hydrolysis indicated there was a risk of sialic acid decomposition and unspecific degradations. Regarding specificity and avoidance of critical agents, the enzymatic transesterification is recommended for industrial-scale production of consumer goods.
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22
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Sandhoff R, Hepbildikler ST, Jennemann R, Geyer R, Gieselmann V, Proia RL, Wiegandt H, Grone HJ. Kidney sulfatides in mouse models of inherited glycosphingolipid disorders: determination by nano-electrospray ionization tandem mass spectrometry. J Biol Chem 2002; 277:20386-98. [PMID: 11919180 DOI: 10.1074/jbc.m110641200] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Sulfatides show structural, and possibly physiological similarities to gangliosides. Kidney dysfunction might be correlated with changes in sulfatides, the major acidic glycosphingolipids in this organ. To elucidate their in vivo metabolic pathway these compounds were analyzed in mice afflicted with inherited glycosphingolipid disorders. The mice under study lacked the genes encoding either beta-hexosaminidase alpha-subunit (Hexa-/-), the beta-hexosaminidase beta-subunit (Hexb-/-), both beta-hexosaminidase alpha and beta-subunits (Hexa-/- and Hexb-/-), GD3 synthase (GD3S-/-), GD3 synthase and GalNAc transferase (GD3S-/- and GalNAcT-/-), GM2 activator protein (Gm2a-/-), or arylsulfatase A (ASA-/-). Quantification of the sulfatides, I(3)SO(3)(-)-GalCer (SM4s), II(3)SO(3)(-)-LacCer (SM3), II(3)SO(3)(-)-Gg(3)Cer (SM2a), and IV(3,) II(3)-(SO(3)(-))(2)-Gg(4)Cer (SB1a), was performed by nano-electrospray tandem mass spectrometry. We conclude for the in vivo situation in mouse kidneys that: 1) a single enzyme (GalNAc transferase) is responsible for the synthesis of SM2a and GM2 from SM3 and GM3, respectively. 2) In analogy to GD1a, SB1a is degraded via SM2a. 3) SM2a is hydrolyzed to SM3 by beta-hexosaminidase S (Hex S) and Hex A, but not Hex B. Both enzymes are supported by GM2-activator protein. 4) Arylsulfatase A is required to degrade SB1a. It is probably the sole sphingolipid-sulfatase cleaving the galactosyl-3-sulfate bond. In addition, a human Tay-Sachs patient's liver was investigated, which showed accumulation of SM2a along with GM2 storage. The different ceramide compositions of both compounds indicated they were probably derived from different cell types. These data demonstrate that in vivo the sulfatides of the ganglio-series follow the same metabolic pathways as the gangliosides with the replacement of sulfotransferases and sulfatases by sialyltransferases and sialidases. Furthermore, a novel neutral GSL, IV(6)GlcNAcbeta-Gb(4)Cer, was found to accumulate only in Hexa-/- and Hexb-/- mouse kidneys. From this we conclude that Hex S also efficiently cleaves terminal beta1-6-linked HexNAc residues from neutral GSLs in vivo.
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Affiliation(s)
- Roger Sandhoff
- Deutsches Krebsforschungszentrum Heidelberg, Abteilung für Zelluläre und Molekulare Pathologie, INF 280, 69120 Heidelberg, Germany.
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23
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Abstract
Pyrene is one of the most frequently used lipid-linked fluorophores. Its most characteristic features are a long excited state lifetime and (local) concentration-dependent formation of excimers. Pyrene is also hydrophobic and thus does not significantly distort the conformation of the labeled lipid molecule. These characteristics make pyrene lipids well-suited for studies on a variety of biophysical phenomena like lateral diffusion, inter- or transbilayer movement of lipids and lateral organization of membranes. Pyrene lipids have also been widely employed to determine protein binding to membranes, lipid conformation and the activity of lipolytic enzymes. In cell biology, pyrene lipids are promising tools for studies on lipid trafficking and metabolism, as well as for microscopic mapping of membrane properties. The main disadvantage of pyrene lipids is the relatively large size of the fluorophore. Another disadvantage is that they require UV-excitation, which is not feasible with all microscopes.
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Affiliation(s)
- Pentti Somerharju
- Institute of Biomedicine, Biomedicum, Room C205b, Haartmaninkatu 8, P.O. Box 63, University of Helsinki, 00014 Helsinki, Finland.
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24
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Bittman R, Verbicky CA. Methanolysis of sphingomyelin: toward an epimerization-free methodology for the preparation of d-erythro-sphingosylphosphocholine. J Lipid Res 2000. [DOI: 10.1016/s0022-2275(20)32371-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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