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Hořejší K, Jin C, Vaňková Z, Jirásko R, Strouhal O, Melichar B, Teneberg S, Holčapek M. Comprehensive characterization of complex glycosphingolipids in human pancreatic cancer tissues. J Biol Chem 2023; 299:102923. [PMID: 36681125 PMCID: PMC9976472 DOI: 10.1016/j.jbc.2023.102923] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/20/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most common causes of cancer-related deaths worldwide, accounting for 90% of primary pancreatic tumors with an average 5-year survival rate of less than 10%. PDAC exhibits aggressive biology, which, together with late detection, results in most PDAC patients presenting with unresectable, locally advanced, or metastatic disease. In-depth lipid profiling and screening of potential biomarkers currently appear to be a promising approach for early detection of PDAC or other cancers. Here, we isolated and characterized complex glycosphingolipids (GSL) from normal and tumor pancreatic tissues of patients with PDAC using a combination of TLC, chemical staining, carbohydrate-recognized ligand-binding assay, and LC/ESI-MS2. The major neutral GSL identified were GSL with the terminal blood groups A, B, H, Lea, Leb, Lex, Ley, P1, and PX2 determinants together with globo- (Gb3 and Gb4) and neolacto-series GSL (nLc4 and nLc6). We also revealed that the neutral GSL profiles and their relative amounts differ between normal and tumor tissues. Additionally, the normal and tumor pancreatic tissues differ in type 1/2 core chains. Sulfatides and GM3 gangliosides were the predominant acidic GSL along with the minor sialyl-nLc4/nLc6 and sialyl-Lea/Lex. The comprehensive analysis of GSL in human PDAC tissues extends the GSL coverage and provides an important platform for further studies of GSL alterations; therefore, it could contribute to the development of new biomarkers and therapeutic approaches.
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Affiliation(s)
- Karel Hořejší
- University of Pardubice, Faculty of Chemical Technology, Department of Analytical Chemistry, , Pardubice, Czech Republic; University of South Bohemia in České Budějovice, Faculty of Science, Department of Chemistry, České Budějovice, Czech Republic
| | - Chunsheng Jin
- University of Gothenburg, Sahlgrenska Academy, Proteomics Core Facility, Göteborg, Sweden
| | - Zuzana Vaňková
- University of Pardubice, Faculty of Chemical Technology, Department of Analytical Chemistry, , Pardubice, Czech Republic
| | - Robert Jirásko
- University of Pardubice, Faculty of Chemical Technology, Department of Analytical Chemistry, , Pardubice, Czech Republic
| | - Ondřej Strouhal
- Palacký University Olomouc, Faculty of Medicine and Dentistryand University Hospital, Department of Oncology, Olomouc, Czech Republic
| | - Bohuslav Melichar
- Palacký University Olomouc, Faculty of Medicine and Dentistryand University Hospital, Department of Oncology, Olomouc, Czech Republic
| | - Susann Teneberg
- University of Gothenburg, Sahlgrenska Academy, Institute of Biomedicine, Department of Medical Biochemistry and Cell Biology, Göteborg, Sweden.
| | - Michal Holčapek
- University of Pardubice, Faculty of Chemical Technology, Department of Analytical Chemistry, , Pardubice, Czech Republic.
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2
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Engel KM, Schiller J. The value of coupling thin-layer chromatography to mass spectrometry in lipid research - a review. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1185:123001. [PMID: 34715571 DOI: 10.1016/j.jchromb.2021.123001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 12/18/2022]
Abstract
Mass spectrometry has emerged as an extremely powerful analytical tool, which is widely used in many fields. This broad application range became possible with the invention of MALDI and ESI as "soft ionization" techniques that keep fragmentation of the analyte to a minimum. However, when these techniques are applied to mixture analysis, less-sensitively detectable compounds may be suppressed by more sensitively detectable compounds, a process called "ion suppression". Thus, previous separation of the mixture into the individual lipid classes is necessary to be able to detect all compounds. This review summarizes the current knowledge in the field of combined TLC/MS and discusses the most important strengths and weaknesses of the different MS (particularly ionization) techniques with respect to phospholipids. This comprises techniques such as MALDI and ESI, but less established approaches such as plasma desorption will be also discussed.
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Affiliation(s)
- Kathrin M Engel
- Leipzig University, Medical Faculty, Institute for Medical Physics and Biophysics, Germany.
| | - Jürgen Schiller
- Leipzig University, Medical Faculty, Institute for Medical Physics and Biophysics, Germany
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Chakraberty R, Reiz B, Cairo CW. Profiling of glycosphingolipids with SCDase digestion and HPLC-FLD-MS. Anal Biochem 2021; 631:114361. [PMID: 34478702 DOI: 10.1016/j.ab.2021.114361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/27/2021] [Accepted: 08/29/2021] [Indexed: 12/01/2022]
Abstract
Lipid components of cells and tissues feature a large diversity of structures that present a challenging problem for molecular analysis. Glycolipids from mammalian cells contain glycosphingolipids (GSLs) as their major glycolipid component, and these structures vary in the identity of the glycan headgroup as well as the structure of the fatty acid and sphingosine (Sph) tails. Analysis of intact GSLs is challenging due to the low abundance of these species. Here, we develop a new strategy for the analysis of lyso-GSL (l-GSL), GSL that retain linkage of the glycan headgroup with the Sph base. The analysis begins with digestion of a GSL sample with sphingolipid ceramide N-deacylase (SCDase), followed by labelling with an amine-reactive fluorophore. The sample was then analyzed by HPLC-FLD-MS and quantitated by addition of an external standard. This method was compared to analysis of GSL glycans after cleavage by an Endoglycoceramidase (EGCase) enzyme and labeling with a fluorophore (2-anthranilic acid, 2AA). The two methods are complementary, with EGCase providing improved signal (due to fewer species) and SCDase providing analysis of lyso-GSL. Importantly the SCDase method provides Sph composition of GSL species. We demonstrate the method on cultured human cells (Jurkat T cells) and tissue homogenate (porcine brain).
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Affiliation(s)
- Radhika Chakraberty
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
| | - Bela Reiz
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
| | - Christopher W Cairo
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada.
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4
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Detzner J, Püttmann C, Pohlentz G, Humpf HU, Mellmann A, Karch H, Müthing J. Primary Human Colon Epithelial Cells (pHCoEpiCs) Do Express the Shiga Toxin (Stx) Receptor Glycosphingolipids Gb3Cer and Gb4Cer and Are Largely Refractory but Not Resistant towards Stx. Int J Mol Sci 2021; 22:ijms221810002. [PMID: 34576167 PMCID: PMC8472147 DOI: 10.3390/ijms221810002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/13/2021] [Accepted: 09/15/2021] [Indexed: 01/13/2023] Open
Abstract
Shiga toxin (Stx) is released by enterohemorrhagic Escherichia coli (EHEC) into the human intestinal lumen and transferred across the colon epithelium to the circulation. Stx-mediated damage of human kidney and brain endothelial cells and renal epithelial cells is a renowned feature, while the sensitivity of the human colon epithelium towards Stx and the decoration with the Stx receptor glycosphingolipids (GSLs) globotriaosylceramide (Gb3Cer, Galα1-4Galβ1-4Glcβ1-1Cer) and globotetraosylceramide (Gb4Cer, GalNAcβ1-3Galα1-4Galβ1-4Glcβ1-1Cer) is a matter of debate. Structural analysis of the globo-series GSLs of serum-free cultivated primary human colon epithelial cells (pHCoEpiCs) revealed Gb4Cer as the major neutral GSL with Cer (d18:1, C16:0), Cer (d18:1, C22:1/C22:0) and Cer (d18:1, C24:2/C24:1) accompanied by minor Gb3Cer with Cer (d18:1, C16:0) and Cer (d18:1, C24:1) as the dominant lipoforms. Gb3Cer and Gb4Cer co-distributed with cholesterol and sphingomyelin to detergent-resistant membranes (DRMs) used as microdomain analogs. Exposure to increasing Stx concentrations indicated only a slight cell-damaging effect at the highest toxin concentration of 1 µg/mL for Stx1a and Stx2a, whereas a significant effect was detected for Stx2e. Considerable Stx refractiveness of pHCoEpiCs that correlated with the rather low cellular content of the high-affinity Stx-receptor Gb3Cer renders the human colon epithelium questionable as a major target of Stx1a and Stx2a.
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Affiliation(s)
- Johanna Detzner
- Institute for Hygiene, University of Münster, 48149 Münster, Germany; (J.D.); (C.P.); (G.P.); (A.M.); (H.K.)
| | - Charlotte Püttmann
- Institute for Hygiene, University of Münster, 48149 Münster, Germany; (J.D.); (C.P.); (G.P.); (A.M.); (H.K.)
| | - Gottfried Pohlentz
- Institute for Hygiene, University of Münster, 48149 Münster, Germany; (J.D.); (C.P.); (G.P.); (A.M.); (H.K.)
| | - Hans-Ulrich Humpf
- Institute for Food Chemistry, University of Münster, 48149 Münster, Germany;
| | - Alexander Mellmann
- Institute for Hygiene, University of Münster, 48149 Münster, Germany; (J.D.); (C.P.); (G.P.); (A.M.); (H.K.)
| | - Helge Karch
- Institute for Hygiene, University of Münster, 48149 Münster, Germany; (J.D.); (C.P.); (G.P.); (A.M.); (H.K.)
| | - Johannes Müthing
- Institute for Hygiene, University of Münster, 48149 Münster, Germany; (J.D.); (C.P.); (G.P.); (A.M.); (H.K.)
- Correspondence: ; Tel.: +49-(0)251-8355192
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5
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Detzner J, Klein AL, Pohlentz G, Krojnewski E, Humpf HU, Mellmann A, Karch H, Müthing J. Primary Human Renal Proximal Tubular Epithelial Cells (pHRPTEpiCs): Shiga Toxin (Stx) Glycosphingolipid Receptors, Stx Susceptibility, and Interaction with Membrane Microdomains. Toxins (Basel) 2021; 13:toxins13080529. [PMID: 34437399 PMCID: PMC8402424 DOI: 10.3390/toxins13080529] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/20/2021] [Accepted: 07/23/2021] [Indexed: 12/13/2022] Open
Abstract
Tubular epithelial cells of the human kidney are considered as targets of Shiga toxins (Stxs) in the Stx-mediated pathogenesis of hemolytic–uremic syndrome (HUS) caused by Stx-releasing enterohemorrhagic Escherichia coli (EHEC). Analysis of Stx-binding glycosphingolipids (GSLs) of primary human renal proximal tubular epithelial cells (pHRPTEpiCs) yielded globotriaosylceramide (Gb3Cer) and globotetraosylceramide (Gb4Cer) with Cer (d18:1, C16:0), Cer (d18:1, C22:0), and Cer (d18:1, C24:1/C24:0) as the dominant lipoforms. Investigation of detergent-resistant membranes (DRMs) and nonDRMs, serving as equivalents for the liquid-ordered and liquid-disordered membrane phase, respectively, revealed the prevalence of Gb3Cer and Gb4Cer together with cholesterol and sphingomyelin in DRMs, suggesting lipid raft association. Stx1a and Stx2a exerted strong cellular damage with half-maximal cytotoxic doses (CD50) of 1.31 × 102 pg/mL and 1.66 × 103 pg/mL, respectively, indicating one order of magnitude higher cellular cytotoxicity of Stx1a. Surface acoustic wave (SAW) real-time interaction analysis using biosensor surfaces coated with DRM or nonDRM fractions gave stronger binding capability of Stx1a versus Stx2a that correlated with the lower cytotoxicity of Stx2a. Our study underlines the substantial role of proximal tubular epithelial cells of the human kidney being associated with the development of Stx-mediated HUS at least for Stx1a, while the impact of Stx2a remains somewhat ambiguous.
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Affiliation(s)
- Johanna Detzner
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (A.-L.K.); (G.P.); (E.K.); (A.M.); (H.K.)
| | - Anna-Lena Klein
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (A.-L.K.); (G.P.); (E.K.); (A.M.); (H.K.)
| | - Gottfried Pohlentz
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (A.-L.K.); (G.P.); (E.K.); (A.M.); (H.K.)
| | - Elisabeth Krojnewski
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (A.-L.K.); (G.P.); (E.K.); (A.M.); (H.K.)
| | - Hans-Ulrich Humpf
- Institute of Food Chemistry, University of Münster, D-48149 Münster, Germany;
| | - Alexander Mellmann
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (A.-L.K.); (G.P.); (E.K.); (A.M.); (H.K.)
| | - Helge Karch
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (A.-L.K.); (G.P.); (E.K.); (A.M.); (H.K.)
| | - Johannes Müthing
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (A.-L.K.); (G.P.); (E.K.); (A.M.); (H.K.)
- Correspondence:
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6
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Detzner J, Krojnewski E, Pohlentz G, Steil D, Humpf HU, Mellmann A, Karch H, Müthing J. Shiga Toxin (Stx)-Binding Glycosphingolipids of Primary Human Renal Cortical Epithelial Cells (pHRCEpiCs) and Stx-Mediated Cytotoxicity. Toxins (Basel) 2021; 13:toxins13020139. [PMID: 33673393 PMCID: PMC7918848 DOI: 10.3390/toxins13020139] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 12/12/2022] Open
Abstract
Human kidney epithelial cells are supposed to be directly involved in the pathogenesis of the hemolytic–uremic syndrome (HUS) caused by Shiga toxin (Stx)-producing enterohemorrhagic Escherichia coli (EHEC). The characterization of the major and minor Stx-binding glycosphingolipids (GSLs) globotriaosylceramide (Gb3Cer) and globotetraosylceramide (Gb4Cer), respectively, of primary human renal cortical epithelial cells (pHRCEpiCs) revealed GSLs with Cer (d18:1, C16:0), Cer (d18:1, C22:0), and Cer (d18:1, C24:1/C24:0) as the dominant lipoforms. Using detergent-resistant membranes (DRMs) and non-DRMs, Gb3Cer and Gb4Cer prevailed in the DRM fractions, suggesting their association with microdomains in the liquid-ordered membrane phase. A preference of Gb3Cer and Gb4Cer endowed with C24:0 fatty acid accompanied by minor monounsaturated C24:1-harboring counterparts was observed in DRMs, whereas the C24:1 fatty acid increased in relation to the saturated equivalents in non-DRMs. A shift of the dominant phospholipid phosphatidylcholine with saturated fatty acids in the DRM to unsaturated species in the non-DRM fractions correlated with the GSL distribution. Cytotoxicity assays gave a moderate susceptibility of pHRCEpiCs to the Stx1a and Stx2a subtypes when compared to highly sensitive Vero-B4 cells. The results indicate that presence of Stx-binding GSLs per se and preferred occurrence in microdomains do not necessarily lead to a high cellular susceptibility towards Stx.
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Affiliation(s)
- Johanna Detzner
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (E.K.); (G.P.); (D.S.); (A.M.); (H.K.)
| | - Elisabeth Krojnewski
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (E.K.); (G.P.); (D.S.); (A.M.); (H.K.)
| | - Gottfried Pohlentz
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (E.K.); (G.P.); (D.S.); (A.M.); (H.K.)
| | - Daniel Steil
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (E.K.); (G.P.); (D.S.); (A.M.); (H.K.)
| | - Hans-Ulrich Humpf
- Institute of Food Chemistry, University of Münster, D-48149 Münster, Germany;
| | - Alexander Mellmann
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (E.K.); (G.P.); (D.S.); (A.M.); (H.K.)
| | - Helge Karch
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (E.K.); (G.P.); (D.S.); (A.M.); (H.K.)
| | - Johannes Müthing
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany; (J.D.); (E.K.); (G.P.); (D.S.); (A.M.); (H.K.)
- Correspondence:
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7
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Detzner J, Pohlentz G, Müthing J. Thin-Layer Chromatography in Structure and Recognition Studies of Shiga Toxin Glycosphingolipid Receptors. Methods Mol Biol 2021; 2291:229-252. [PMID: 33704756 DOI: 10.1007/978-1-0716-1339-9_10] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Glycosphingolipids (GSLs) consist of a ceramide (Cer) lipid anchor, which is typically composed of the long-chain aminoalcohol sphingosine (d18:1) and a fatty acid (mostly C16-C24) and a sugar moiety harboring to a great extent one to five monosaccharides. GSLs of the globo-series are well-recognized receptors of Shiga toxins (Stxs) released by Stx-producing Escherichia coli (STEC). Receptors for the Stx subtypes Stx1a and Stx2a are globotriaosylceramide (Gb3Cer) and globotetraosylceramide (Gb4Cer), whereby Gb3Cer represents their high-affinity and Gb4Cer their low-affinity receptor. In addition to Gb3Cer and Gb4Cer, Gb5Cer and Forssman GSL are further receptors of the Stx2e subtype rendering Stx2e unique among the various Stx subtypes. Thin-layer chromatography (TLC) is a convenient and ubiquitously employed method for analyzing GSL mixtures of unknown composition. In particular, TLC immunochemical overlay detection allows for sensitive identification of Stx-binding GSLs in complex mixtures directly on the TLC plate. For this purpose, specific anti-GSL antibodies or Stxs themselves in conjunction with anti-Stx antibodies can be used. The described protocols of antibody-mediated detection of TLC-separated globo-series GSLs and corresponding identification of Stx-binding globo-series GSLs will provide detailed advice for successful GSL analysis and particularly highlight the power of the TLC overlay technique.
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Affiliation(s)
- Johanna Detzner
- Institute for Hygiene, University of Münster, Münster, Germany
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8
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Legros N, Pohlentz G, Steil D, Kouzel IU, Liashkovich I, Mellmann A, Karch H, Müthing J. Membrane assembly of Shiga toxin glycosphingolipid receptors and toxin refractiveness of MDCK II epithelial cells. J Lipid Res 2018; 59:1383-1401. [PMID: 29866658 DOI: 10.1194/jlr.m083048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 05/22/2018] [Indexed: 12/16/2022] Open
Abstract
Shiga toxins (Stxs) are the major virulence factors of Stx-producing Escherichia coli (STEC), which cause hemorrhagic colitis and severe extraintestinal complications due to injury of renal endothelial cells, resulting in kidney failure. Since kidney epithelial cells are suggested additional targets for Stxs, we analyzed Madin-Darby canine kidney (MDCK) II epithelial cells for presence of Stx-binding glycosphingolipids (GSLs), determined their distribution to detergent-resistant membranes (DRMs), and ascertained the lipid composition of DRM and non-DRM preparations. Globotriaosylceramide and globotetraosylceramide, known as receptors for Stx1a, Stx2a, and Stx2e, and Forssman GSL as a specific receptor for Stx2e, were found to cooccur with SM and cholesterol in DRMs of MDCK II cells, which was shown using TLC overlay assay detection combined with mass spectrometry. The various lipoforms of GSLs were found to mainly harbor ceramide moieties composed of sphingosine (d18:1) and C24:1/C24:0 or C16:0 FA. The cells were highly refractory toward Stx1a, Stx2a, and Stx2e, most likely due to the absence of Stx-binding GSLs in the apical plasma membrane determined by immunofluorescence confocal laser scanning microscopy. The results suggest that the cellular content of Stx receptor GSLs and their biochemical detection in DRM preparations alone are inadequate to predict cellular sensitivity toward Stxs.
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Affiliation(s)
- Nadine Legros
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
| | | | - Daniel Steil
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
| | - Ivan U Kouzel
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany.,Interdisciplinary Center for Clinical Research, University of Münster, D-48149 Münster, Germany
| | - Ivan Liashkovich
- Institute of Physiology II, University of Münster, D-48149 Münster, Germany
| | - Alexander Mellmann
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany.,Interdisciplinary Center for Clinical Research, University of Münster, D-48149 Münster, Germany
| | - Helge Karch
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany.,Interdisciplinary Center for Clinical Research, University of Münster, D-48149 Münster, Germany
| | - Johannes Müthing
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany .,Interdisciplinary Center for Clinical Research, University of Münster, D-48149 Münster, Germany
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9
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Shiga Toxin Glycosphingolipid Receptors in Human Caco-2 and HCT-8 Colon Epithelial Cell Lines. Toxins (Basel) 2017; 9:toxins9110338. [PMID: 29068380 PMCID: PMC5705953 DOI: 10.3390/toxins9110338] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/11/2017] [Accepted: 10/19/2017] [Indexed: 12/21/2022] Open
Abstract
Shiga toxins (Stxs) released by enterohemorrhagic Escherichia coli (EHEC) into the human colon are the causative agents for fatal outcome of EHEC infections. Colon epithelial Caco-2 and HCT-8 cells are widely used for investigating Stx-mediated intestinal cytotoxicity. Only limited data are available regarding precise structures of their Stx receptor glycosphingolipids (GSLs) globotriaosylceramide (Gb3Cer) and globotetraosylceramide (Gb4Cer), and lipid raft association. In this study we identified Gb3Cer and Gb4Cer lipoforms of serum-free cultivated Caco-2 and HCT-8 cells, chiefly harboring ceramide moieties composed of sphingosine (d18:1) and C16:0, C22:0 or C24:0/C24:1 fatty acid. The most significant difference between the two cell lines was the prevalence of Gb3Cer with C16 fatty acid in HCT-8 and Gb4Cer with C22–C24 fatty acids in Caco-2 cells. Lipid compositional analysis of detergent-resistant membranes (DRMs), which were used as lipid raft-equivalents, indicated slightly higher relative content of Stx receptor Gb3Cer in DRMs of HCT-8 cells when compared to Caco-2 cells. Cytotoxicity assays revealed substantial sensitivity towards Stx2a for both cell lines, evidencing little higher susceptibility of Caco-2 cells versus HCT-8 cells. Collectively, Caco-2 and HCT-8 cells express a plethora of different receptor lipoforms and are susceptible towards Stx2a exhibiting somewhat lower sensitivity when compared to Vero cells.
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Zhang L, Shi J, Tang J, Cheng Z, Lu X, Kong Y, Wu T. Direct coupling of thin-layer chromatography-bioautography with electrostatic field induced spray ionization-mass spectrometry for separation and identification of lipase inhibitors in lotus leaves. Anal Chim Acta 2017; 967:52-58. [DOI: 10.1016/j.aca.2017.03.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 02/28/2017] [Accepted: 03/04/2017] [Indexed: 12/12/2022]
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11
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Steil D, Bonse R, Meisen I, Pohlentz G, Vallejo G, Karch H, Müthing J. A Topographical Atlas of Shiga Toxin 2e Receptor Distribution in the Tissues of Weaned Piglets. Toxins (Basel) 2016; 8:toxins8120357. [PMID: 27916888 PMCID: PMC5198551 DOI: 10.3390/toxins8120357] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 11/21/2016] [Accepted: 11/28/2016] [Indexed: 01/08/2023] Open
Abstract
Shiga toxin (Stx) 2e of Stx-producing Escherichia coli (STEC) is the primary virulence factor in the development of pig edema disease shortly after weaning. Stx2e binds to the globo-series glycosphingolipids (GSLs) globotriaosylceramide (Gb3Cer, Galα1-4Galβ1-4Glcβ1-1Cer) and globotetraosylceramide (Gb4Cer, GalNAcβ1-3Galα1-4Galβ1-4Glcβ1-1Cer), the latter acting as the preferential Stx2e receptor. We determined Stx receptor profiles of 25 different tissues of a male and a female weaned piglet using immunochemical solid phase binding assays combined with mass spectrometry. All probed tissues harbored GSL receptors, ranging from high (category I) over moderate (category II) to low content (category III). Examples of Gb4Cer expression in category I tissues are small intestinal ileum, kidney pelvis and whole blood, followed by colon, small intestinal duodenum and jejunum belonging to category II, and kidney cortex, cerebrum and cerebellum as members of category III organs holding true for both genders. Dominant Gb3Cer and Gb4Cer lipoforms were those with ceramides carrying constant sphingosine (d18:1) and a variable C16:0, C22:0 or C24:1/C24:0 fatty acid. From the mapping data, we created a topographical atlas for Stx2e receptors in piglet tissues and organs, which might be helpful to further investigations on the molecular and cellular mechanisms that underlie infections of Stx2e-producing STEC in pigs and their zoonotic potential for humans.
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Affiliation(s)
- Daniel Steil
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany.
| | - Robert Bonse
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany.
| | - Iris Meisen
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany.
| | | | - German Vallejo
- Veterinary practice Dr. med. vet. K. Nolte and Dr. med. vet. G. Vallejo, D-48329 Havixbeck, Germany.
| | - Helge Karch
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany.
| | - Johannes Müthing
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany.
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Canez CR, Shields SWJ, Bugno M, Wasslen KV, Weinert HP, Willmore WG, Manthorpe JM, Smith JC. Trimethylation Enhancement Using 13C-Diazomethane (13C-TrEnDi): Increased Sensitivity and Selectivity of Phosphatidylethanolamine, Phosphatidylcholine, and Phosphatidylserine Lipids Derived from Complex Biological Samples. Anal Chem 2016; 88:6996-7004. [DOI: 10.1021/acs.analchem.5b04524] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Carlos R. Canez
- Department
of Chemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
- Carleton
Mass Spectrometry Centre, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - Samuel W. J. Shields
- Department
of Chemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
- Carleton
Mass Spectrometry Centre, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - Magdalena Bugno
- Department
of Biology, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - Karl V. Wasslen
- Department
of Chemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
- Carleton
Mass Spectrometry Centre, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - Hillary P. Weinert
- Department
of Chemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
- Carleton
Mass Spectrometry Centre, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - William G. Willmore
- Department
of Chemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
- Department
of Biology, Carleton University, Ottawa, Ontario K1S 5B6, Canada
- Institute
of Biochemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - Jeffrey M. Manthorpe
- Department
of Chemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
- Institute
of Biochemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
- Carleton
Mass Spectrometry Centre, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - Jeffrey C. Smith
- Department
of Chemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
- Institute
of Biochemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
- Carleton
Mass Spectrometry Centre, Carleton University, Ottawa, Ontario K1S 5B6, Canada
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13
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Hu B, Xin GZ, So PK, Yao ZP. Thin layer chromatography coupled with electrospray ionization mass spectrometry for direct analysis of raw samples. J Chromatogr A 2015; 1415:155-60. [DOI: 10.1016/j.chroma.2015.08.055] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Revised: 08/23/2015] [Accepted: 08/24/2015] [Indexed: 01/05/2023]
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14
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15
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Wasslen KV, Canez CR, Lee H, Manthorpe JM, Smith JC. Trimethylation Enhancement Using Diazomethane (TrEnDi) II: Rapid In-Solution Concomitant Quaternization of Glycerophospholipid Amino Groups and Methylation of Phosphate Groups via Reaction with Diazomethane Significantly Enhances Sensitivity in Mass Spectrometry Analyses via a Fixed, Permanent Positive Charge. Anal Chem 2014; 86:9523-32. [DOI: 10.1021/ac501588y] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Karl V. Wasslen
- Department of Chemistry and ‡Institute of Biochemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - Carlos R. Canez
- Department of Chemistry and ‡Institute of Biochemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - Hyunmin Lee
- Department of Chemistry and ‡Institute of Biochemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - Jeffrey M. Manthorpe
- Department of Chemistry and ‡Institute of Biochemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - Jeffrey C. Smith
- Department of Chemistry and ‡Institute of Biochemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
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16
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Kouzel IU, Pirkl A, Pohlentz G, Soltwisch J, Dreisewerd K, Karch H, Müthing J. Progress in Detection and Structural Characterization of Glycosphingolipids in Crude Lipid Extracts by Enzymatic Phospholipid Disintegration Combined with Thin-Layer Chromatography Immunodetection and IR-MALDI Mass Spectrometry. Anal Chem 2014; 86:1215-22. [DOI: 10.1021/ac4035696] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ivan U. Kouzel
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany
| | - Alexander Pirkl
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany
| | - Gottfried Pohlentz
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany
| | - Jens Soltwisch
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany
| | - Klaus Dreisewerd
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany
| | - Helge Karch
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany
| | - Johannes Müthing
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany
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Ruh H, Sandhoff R, Meyer B, Gretz N, Hopf C. Quantitative Characterization of Tissue Globotetraosylceramides in a Rat Model of Polycystic Kidney Disease by PrimaDrop Sample Preparation and Indirect High-Performance Thin Layer Chromatography–Matrix-Assisted Laser Desorption/Ionization-Time-of-Flight-Mass Spectrometry with Automated Data Acquisition. Anal Chem 2013; 85:6233-40. [DOI: 10.1021/ac400931u] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Hermelindis Ruh
- Instrumental Analysis and Bioanalysis, Department of
Biotechnology, Mannheim University of Applied Sciences, Paul-Wittsack-Str. 10, 68163 Mannheim,
Germany
- Applied Research
Center in Biomedical
Mass Spectrometry (ABIMAS), Mannheim University of Applied Sciences, Paul-Wittsack-Str. 10, 68163 Mannheim, Germany
- Institute of Medical Technology, University of Heidelberg and Mannheim University of Applied Sciences, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
- Medical Research Center, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Roger Sandhoff
- Applied Research
Center in Biomedical
Mass Spectrometry (ABIMAS), Mannheim University of Applied Sciences, Paul-Wittsack-Str. 10, 68163 Mannheim, Germany
- Lipid Pathobiochemistry, German Cancer Research Center, Im Neuenheimer Feld
280, 69120 Heidelberg, Germany
| | - Björn Meyer
- Instrumental Analysis and Bioanalysis, Department of
Biotechnology, Mannheim University of Applied Sciences, Paul-Wittsack-Str. 10, 68163 Mannheim,
Germany
- Applied Research
Center in Biomedical
Mass Spectrometry (ABIMAS), Mannheim University of Applied Sciences, Paul-Wittsack-Str. 10, 68163 Mannheim, Germany
- Institute of Medical Technology, University of Heidelberg and Mannheim University of Applied Sciences, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Norbert Gretz
- Applied Research
Center in Biomedical
Mass Spectrometry (ABIMAS), Mannheim University of Applied Sciences, Paul-Wittsack-Str. 10, 68163 Mannheim, Germany
- Institute of Medical Technology, University of Heidelberg and Mannheim University of Applied Sciences, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
- Medical Research Center, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Carsten Hopf
- Instrumental Analysis and Bioanalysis, Department of
Biotechnology, Mannheim University of Applied Sciences, Paul-Wittsack-Str. 10, 68163 Mannheim,
Germany
- Applied Research
Center in Biomedical
Mass Spectrometry (ABIMAS), Mannheim University of Applied Sciences, Paul-Wittsack-Str. 10, 68163 Mannheim, Germany
- Institute of Medical Technology, University of Heidelberg and Mannheim University of Applied Sciences, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
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18
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Kouzel IU, Pohlentz G, Storck W, Radamm L, Hoffmann P, Bielaszewska M, Bauwens A, Cichon C, Schmidt MA, Mormann M, Karch H, Müthing J. Association of Shiga toxin glycosphingolipid receptors with membrane microdomains of toxin-sensitive lymphoid and myeloid cells. J Lipid Res 2013; 54:692-710. [PMID: 23248329 PMCID: PMC3617944 DOI: 10.1194/jlr.m031781] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 12/14/2012] [Indexed: 11/20/2022] Open
Abstract
Glycosphingolipids (GSLs) of the globo-series constitute specific receptors for Shiga toxins (Stxs) released by certain types of pathogenic Escherichia coli strains. Stx-loaded leukocytes may act as transporter cells in the blood and transfer the toxin to endothelial target cells. Therefore, we performed a thorough investigation on the expression of globo-series GSLs in serum-free cultivated Raji and Jurkat cells, representing B- and T-lymphocyte descendants, respectively, as well as THP-1 and HL-60 cells of the monocyte and granulocyte lineage, respectively. The presence of Stx-receptors in GSL preparations of Raji and THP-1 cells and the absence in Jurkat and HL-60 cells revealed high compliance of solid-phase immunodetection assays with the expression profiles of receptor-related glycosyltransferases, performed by qRT-PCR analysis, and Stx2-caused cellular damage. Canonical microdomain association of Stx GSL receptors, sphingomyelin, and cholesterol in membranes of Raji and THP-1 cells was assessed by comparative analysis of detergent-resistant membrane (DRM) and nonDRM fractions obtained by density gradient centrifugation and showed high correlation based on nonparametric statistical analysis. Our comprehensive study on the expression of Stx-receptors and their subcellular distribution provides the basis for exploring the functional role of lipid raft-associated Stx-receptors in cells of leukocyte origin.
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Affiliation(s)
- Ivan U. Kouzel
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
| | | | - Wiebke Storck
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
| | - Lena Radamm
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
| | - Petra Hoffmann
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
| | | | - Andreas Bauwens
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
| | - Christoph Cichon
- Institute of Infectiology, University of Münster, D-48149 Münster, Germany
| | | | - Michael Mormann
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
| | - Helge Karch
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
| | - Johannes Müthing
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
- Interdisciplinary Center for Clinical Research (IZKF), University of Münster, D-48149 Münster, Germany
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19
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Chen CC, Yang YL, Ou CL, Chou CH, Liaw CC, Lin PC. Direct monitoring of chemical transformations by combining thin layer chromatography with nanoparticle-assisted laser desorption/ionization mass spectrometry. Analyst 2013; 138:1379-85. [DOI: 10.1039/c2an36423a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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The human H3N2 influenza viruses A/Victoria/3/75 and A/Hiroshima/52/2005 preferentially bind to α2-3-sialylated monosialogangliosides with fucosylated poly-N-acetyllactosaminyl chains. Glycobiology 2012; 22:1055-76. [DOI: 10.1093/glycob/cws077] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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21
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Fuchs B. Analysis of phospolipids and glycolipids by thin-layer chromatography-matrix-assisted laser desorption and ionization mass spectrometry. J Chromatogr A 2012; 1259:62-73. [PMID: 22503924 DOI: 10.1016/j.chroma.2012.03.068] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 03/14/2012] [Accepted: 03/19/2012] [Indexed: 11/16/2022]
Abstract
Thin-layer chromatography-matrix-assisted laser desorption and ionization mass spectrometry (TLC-MALDI-MS) of organic extracts from biological samples allows untargeted analysis and structural characterization of phospholipids and glycolipids ionized from the near-surface region of a sample separated on a TLC-plate. In particular, MALDI-MS enables the sensitive detection of many analytes directly from the solid surface of an ordinary TLC-plate even without previous staining. It will be shown that the detailed fatty acyl composition of phospholipids can be determined solely by TLC-MALDI-MS without previous derivatization, enzymatic cleavage and/or reversed phase separation. MALDI-time-of-flight (TOF) MS is thus a powerful method in this field due to its high sensitivity, low extent of induced fragmentation and simple, user-friendly performance. This review summarizes the so far available knowledge about combined TLC-MALDI-MS for phospholipid and glycolipid characterization together with the technical workflow and a survey of applications. Finally a perspective on the future of TLC-MALDI-MS is given.
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Affiliation(s)
- Beate Fuchs
- University of Leipzig, Medical Department, Institute of Medical Physics & Biophysics, Härtelstr. 16/18, D-04107 Leipzig, Germany.
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22
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Betz J, Bauwens A, Kunsmann L, Bielaszewska M, Mormann M, Humpf HU, Karch H, Friedrich AW, Müthing J. Uncommon membrane distribution of Shiga toxin glycosphingolipid receptors in toxin-sensitive human glomerular microvascular endothelial cells. Biol Chem 2012; 393:133-47. [DOI: 10.1515/hsz-2011-0288] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Accepted: 12/22/2011] [Indexed: 11/15/2022]
Abstract
Abstract
Membrane microdomain association of the glycosphingolipids (GSLs) globotriaosylceramide (Gb3Cer) and globotetraosylceramide (Gb4Cer), the highly and less effective receptors, respectively, for Shiga toxins (Stxs), is assumed as a functional requirement for Stx-mediated cytotoxicity. In a previous study, we demonstrated predominant localization of Stx receptors in cholesterol-enriched membrane microdomains of moderately Stx-sensitive human brain microvascular endothelial cells (HBMECs) by means of detergent-resistant membranes (DRMs). Here we report a different preferential distribution of Stx receptors in non-DRM fractions of human glomerular microvascular endothelial cells (GMVECs), the major targets of Stxs in the human kidney. Full structural characterization of Stx receptors using electrospray ionization (ESI) mass spectrometry revealed Gb3Cer and Gb4Cer lipoforms with ceramide moieties mainly composed of C24:0/C24:1 or C16:0 fatty acid and sphingosine (d18:1) in GMVECs comparable to those previously found in HBMECs. Thin-layer chromatography immunostaining demonstrated an approximately 2-fold higher content of Gb3Cer and a 1.4-fold higher content of Gb4Cer in GMVECs than in HBMECs. However, this does not explain the remarkable higher cytotoxic action of Stx1 and Stx2 toward GMVECs as compared with HBMECs. Our finding opens new questions on the microdomain association of Stx receptors and the functional role of GSLs in the membrane assembly of GMVECs.
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: an update for 2007-2008. MASS SPECTROMETRY REVIEWS 2012; 31:183-311. [PMID: 21850673 DOI: 10.1002/mas.20333] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Revised: 01/04/2011] [Accepted: 01/04/2011] [Indexed: 05/31/2023]
Abstract
This review is the fifth update of the original review, 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 2008. The first section of the review covers fundamental studies, fragmentation of carbohydrate ions, use of derivatives and new software developments for analysis of carbohydrate spectra. Among newer areas of method development are glycan arrays, MALDI imaging and the use of ion mobility spectrometry. The second section of the review discusses applications of MALDI MS to the analysis of different types of carbohydrate. Specific compound classes that are covered include carbohydrate polymers from plants, N- and O-linked glycans from glycoproteins, biopharmaceuticals, glycated proteins, glycolipids, glycosides and various other natural products. There is a short section on the use of MALDI mass spectrometry for the study of enzymes involved in glycan processing and a section on the use of MALDI MS to monitor products of the chemical synthesis of carbohydrates with emphasis on carbohydrate-protein complexes and glycodendrimers. Corresponding analyses by electrospray ionization now appear to outnumber those performed by MALDI and the amount of literature makes a comprehensive review on this technique impractical. However, most of the work relating to sample preparation and glycan synthesis is equally relevant to electrospray and, consequently, those proposing analyses by electrospray should also find material in this review of interest.
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Affiliation(s)
- David J Harvey
- Oxford Glycobiology Institute, Department of Biochemistry, University of Oxford, Oxford OX1 3QU, UK.
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24
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Müthing J, Meisen I, Zhang W, Bielaszewska M, Mormann M, Bauerfeind R, Schmidt MA, Friedrich AW, Karch H. Promiscuous Shiga toxin 2e and its intimate relationship to Forssman. Glycobiology 2012; 22:849-62. [DOI: 10.1093/glycob/cws009] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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25
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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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26
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Thin-layer chromatography, overlay technique and mass spectrometry: A versatile triad advancing glycosphingolipidomics. Biochim Biophys Acta Mol Cell Biol Lipids 2011; 1811:875-96. [DOI: 10.1016/j.bbalip.2011.04.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Revised: 03/18/2011] [Accepted: 04/10/2011] [Indexed: 12/16/2022]
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27
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Farwanah H, Kolter T, Sandhoff K. Mass spectrometric analysis of neutral sphingolipids: Methods, applications, and limitations. Biochim Biophys Acta Mol Cell Biol Lipids 2011; 1811:854-60. [DOI: 10.1016/j.bbalip.2011.05.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Revised: 05/05/2011] [Accepted: 05/24/2011] [Indexed: 10/18/2022]
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28
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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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29
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Cheng SC, Huang MZ, Shiea J. Thin layer chromatography/mass spectrometry. J Chromatogr A 2011; 1218:2700-11. [DOI: 10.1016/j.chroma.2011.01.077] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Revised: 01/24/2011] [Accepted: 01/25/2011] [Indexed: 11/26/2022]
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30
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Urban PL, Amantonico A, Zenobi R. Lab-on-a-plate: extending the functionality of MALDI-MS and LDI-MS targets. MASS SPECTROMETRY REVIEWS 2011; 30:435-478. [PMID: 21254192 DOI: 10.1002/mas.20288] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We review the literature that describes how (matrix-assisted) laser desorption/ionization (MA)LDI target plates can be used not only as sample supports, but beyond that: as functional parts of analytical protocols that incorporate detection by MALDI-MS or matrix-free LDI-MS. Numerous steps of analytical procedures can be performed directly on the (MA)LDI target plates prior to the ionization of analytes in the ion source of a mass spectrometer. These include homogenization, preconcentration, amplification, purification, extraction, digestion, derivatization, synthesis, separation, detection with complementary techniques, data storage, or other steps. Therefore, we consider it helpful to define the "lab-on-a-plate" as a format for carrying out extensive sample treatment as well as bioassays directly on (MA)LDI target plates. This review introduces the lab-on-plate approach and illustrates it with the aid of relevant examples from the scientific and patent literature.
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Affiliation(s)
- Pawel L Urban
- Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093 Zurich, Switzerland
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31
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Betz J, Bielaszewska M, Thies A, Humpf HU, Dreisewerd K, Karch H, Kim KS, Friedrich AW, Müthing J. Shiga toxin glycosphingolipid receptors in microvascular and macrovascular endothelial cells: differential association with membrane lipid raft microdomains. J Lipid Res 2011; 52:618-34. [PMID: 21252262 DOI: 10.1194/jlr.m010819] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Vascular damage caused by Shiga toxin (Stx)-producing Escherichia coli is largely mediated by Stxs, which in particular, injure microvascular endothelial cells in the kidneys and brain. The majority of Stxs preferentially bind to the glycosphingolipid (GSL) globotriaosylceramide (Gb3Cer) and, to a lesser extent, to globotetraosylceramide (Gb4Cer). As clustering of receptor GSLs in lipid rafts is a functional requirement for Stxs, we analyzed the distribution of Gb3Cer and Gb4Cer to membrane microdomains of human brain microvascular endothelial cells (HBMECs) and macrovascular EA.hy 926 endothelial cells by means of anti-Gb3Cer and anti-Gb4Cer antibodies. TLC immunostaining coupled with infrared matrix-assisted laser desorption/ionization (IR-MALDI) mass spectrometry revealed structural details of various lipoforms of Stx receptors and demonstrated their major distribution in detergent-resistant membranes (DRMs) compared with nonDRM fractions of HBMECs and EA.hy 926 cells. A significant preferential partition of different receptor lipoforms carrying C24:0/C24:1 or C16:0 fatty acid and sphingosine to DRMs was not detected in either cell type. Methyl-β-cyclodextrin (MβCD)-mediated cholesterol depletion resulted in only partial destruction of lipid rafts, accompanied by minor loss of GSLs in HBMECs. In contrast, almost entire disintegration of lipid rafts accompanied by roughly complete loss of GSLs was detected in EA.hy 926 cells after removal of cholesterol, indicating more stable microdomains in HBMECs. Our findings provide first evidence for differently stable microdomains in human endothelial cells from different vascular beds and should serve as the basis for further exploring the functional role of lipid raft-associated Stx receptors in different cell types.
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Affiliation(s)
- Josefine Betz
- Institutes for Hygiene, Food Chemistry, University of Münster, Münster, Germany
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Differences in CD75s- and iso-CD75s-ganglioside content and altered mRNA expression of sialyltransferases ST6GAL1 and ST3GAL6 in human hepatocellular carcinomas and nontumoral liver tissues. Glycobiology 2010; 21:584-94. [DOI: 10.1093/glycob/cwq200] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Bou Khalil M, Hou W, Zhou H, Elisma F, Swayne LA, Blanchard AP, Yao Z, Bennett SAL, Figeys D. Lipidomics era: accomplishments and challenges. MASS SPECTROMETRY REVIEWS 2010; 29:877-929. [PMID: 20931646 DOI: 10.1002/mas.20294] [Citation(s) in RCA: 132] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Lipid mediators participate in signal transduction pathways, proliferation, apoptosis, and membrane trafficking in the cell. Lipids are highly complex and diverse owing to the various combinations of polar headgroups, fatty acyl chains, and backbone structures. This structural diversity continues to pose a challenge for lipid analysis. Here we review the current state of the art in lipidomics research and discuss the challenges facing this field. The latest technological developments in mass spectrometry, the role of bioinformatics, and the applications of lipidomics in lipid metabolism and cellular physiology and pathology are also discussed.
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Affiliation(s)
- Maroun Bou Khalil
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON, Canada K1H 8M5
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Normal silica gel and reversed phase thin-layer chromatography coupled with UV spectroscopy and IR-MALDI-o-TOF-MS for the detection of tetracycline antibiotics. Anal Bioanal Chem 2010; 398:2821-31. [DOI: 10.1007/s00216-010-4135-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2010] [Revised: 08/16/2010] [Accepted: 08/16/2010] [Indexed: 10/19/2022]
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Hoffmann P, Hülsewig M, Duvar S, Ziehr H, Mormann M, Peter-Katalinić J, Friedrich AW, Karch H, Müthing J. On the structural diversity of Shiga toxin glycosphingolipid receptors in lymphoid and myeloid cells determined by nanoelectrospray ionization tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2010; 24:2295-2304. [PMID: 20623712 DOI: 10.1002/rcm.4636] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Shiga toxin (Stx, synonymous to verotoxin, VT) binds with high and low affinity to the globo-series neutral glycosphingolipids (GSLs), globotriaosylceramide (Gb3Cer or Galalpha4Galbeta4Glcbeta1Cer, also known as CD77) and globotetraosylceramide (Gb4Cer or GalNAcbeta3Galalpha4Galbeta4Glcbeta1Cer), respectively, which represent the targets of Stxs on many different cell types. B-cell-derived Raji cells and THP-1 cells of monocytic origin are widely used for the investigation of Stx-mediated cellular response, because Stx is known to cause cell death in both cell lines. Despite their functional importance, the Stx receptors of Raji and THP-1 cells have so far not been investigated. This prompted us to explore the structures of their GSL receptors in detail by means of nanoelectrospray ionization quadrupole time-of-flight mass spectrometry (nanoESI-QTOF-MS) with collision-induced dissociation (CID) in conjunction with Stx1 as well as anti-Gb3Cer and anti-Gb4Cer antibodies. Using the combination of a thin-layer chromatography (TLC) overlay assay and MS(1) and MS(2) analysis we identified Gb3Cer (d18:1, C24:1/C24:0) as the prevalent Stx1-receptor accompanied by less abundant Gb3Cer (d18:1, C16:0) in the neutral GSL fraction of Raji cells. The same Gb3Cer species but with almost equal proportions of the C24:1/C24:0 and C16:0 variants were found in THP-1 cells. In addition, unusual hydroxylated Gb3Cer (d18:1, C24:1/C24:0) and Gb3Cer (d18:1, C26:1) could be identified in trace quantities in both cell lines. As the most obvious difference between Raji and THP-1 cells we observed the expression of Gb4Cer in THP-1 cells, whereas Raji cells failed to express this elongation product of Gb3Cer. Both short- and long-chain fatty acid carrying Gb4Cer (d18:1, C16:0) and Gb4Cer (d18:1, C24:1/C24:0), respectively, were the prevalent Gb4Cer variants. This first report on the differential expression of Gb3Cer and Gb4Cer and their structural diversity in lymphoid and myeloid cell lines supports the hypothesis that such heterogeneities might play a functional role in the molecular assembly of GSLs in membrane organization and cellular signaling of Stx-susceptible cells.
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Affiliation(s)
- Petra Hoffmann
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany
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Schweppe CH, Hoffmann P, Nofer JR, Pohlentz G, Mormann M, Karch H, Friedrich AW, Müthing J. Neutral glycosphingolipids in human blood: a precise mass spectrometry analysis with special reference to lipoprotein-associated Shiga toxin receptors. J Lipid Res 2010; 51:2282-94. [PMID: 20444989 PMCID: PMC2903809 DOI: 10.1194/jlr.m006759] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Revised: 05/05/2010] [Indexed: 12/14/2022] Open
Abstract
Shiga toxin (Stx)-producing Escherichia coli are the leading cause of hemorrhagic colitis and life-threatening extraintestinal complications in humans. Stx1 and Stx2 are transferred by yet to be delineated mechanisms from the intestine to the circulation where they injure microvascular endothelial cells. The resulting vascular lesions cause renal failure and brain damage. Because lipoproteins are potential carriers of Stx through the circulation, we investigated human lipoprotein-associated neutral glycosphingolipids (GSLs) with emphasis on high (globotriaosylceramide) and low (globotetraosylceramide) affinity Stx-receptors. TLC overlay employing Stx1, Stx2, and anti-GSL antibodies demonstrated preferential distribution of globo-series GSLs to very low- and low-density lipoproteins compared with minor association with high-density lipoproteins. Electrospray ionization quadrupole time-of-flight mass spectrometry portrayed C24:0/C24:1 and C16:0 as the major fatty acid of the ceramide moieties of Stx-receptors carrying nonvarying d18:1 sphingosine. This structural heterogeneity was also found in precursor lactosylceramide, glucosylceramide, and galactosylceramide, the last showing an exceptionally high degree of hydroxylated C24 fatty acids. Our findings provide the basis for exploring the functional role of lipoprotein-associated Stx-receptors in human blood.
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Affiliation(s)
| | - Petra Hoffmann
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
| | - Jerzy-Roch Nofer
- Institute for Clinical Chemistry and Laboratory Medicine, University of Münster, D-48149 Münster, Germany
| | - Gottfried Pohlentz
- Institute for Medical Physics and Biophysics, University of Münster, D-48149 Münster, Germany
| | - Michael Mormann
- Institute for Medical Physics and Biophysics, University of Münster, D-48149 Münster, Germany
| | - Helge Karch
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
| | - Alexander W. Friedrich
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
- Interdisciplinary Center for Clinical Research (IZKF) Münster, D-48149 Münster, Germany
| | - Johannes Müthing
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
- Interdisciplinary Center for Clinical Research (IZKF) Münster, D-48149 Münster, Germany
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Fuchs B, Süss R, Schiller J. An update of MALDI-TOF mass spectrometry in lipid research. Prog Lipid Res 2010; 49:450-75. [PMID: 20643161 DOI: 10.1016/j.plipres.2010.07.001] [Citation(s) in RCA: 212] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2010] [Revised: 06/29/2010] [Accepted: 07/01/2010] [Indexed: 10/19/2022]
Abstract
Although matrix-assisted laser desorption and ionization (MALDI) mass spectrometry (MS)--often but not exclusively coupled with a time-of-flight (TOF) mass analyzer--is primarily established in the protein field, there is increasing evidence that MALDI MS is also very useful in lipid research: MALDI MS is fast, sensitive, tolerates sample impurities to a relatively high extent and provides very simple mass spectra without major fragmentation of the analyte. Additionally, MALDI MS devices originally purchased for "proteomics" can be used also for lipids without the need of major system alterations. After a short introduction into the method and the related ion-forming process, the MALDI mass spectrometric characteristics of the individual lipid (ranging from completely apolar hydrocarbons to complex glycolipids with the focus on glycerophospholipids) classes will be discussed and the progress achieved in the last years emphasized. Special attention will be paid to quantitative aspects of MALDI MS because this is normally considered to be the "weak" point of the method, particularly if complex lipid mixtures are to be analyzed. Although the detailed role of the matrix is not yet completely clear, it will be also explicitly shown that the careful choice of the matrix is crucial in order to be able to detect all compounds of interest. Two rather recent developments will be highlighted: "Imaging" MS is nowadays widely established and significant interest is paid in this context to the analysis of lipids because lipids ionize particularly well and are, thus, more sensitively detectable in tissue slices than other biomolecules such as proteins. It will also be shown that MALDI MS can be very easily combined with thin-layer chromatography (TLC) allowing the spatially-resolved screening of the entire TLC plate and the detection of lipids with a higher sensitivity than common staining protocols.
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Affiliation(s)
- Beate Fuchs
- University of Leipzig, Medical Department, Institute of Medical Physics and Biophysics, Härtelstrasse 16-18, Germany
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38
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Lattová E, Tomanek B, Bartusik D, Perreault H. N-glycomic changes in human breast carcinoma MCF-7 and T-lymphoblastoid cells after treatment with herceptin and herceptin/Lipoplex. J Proteome Res 2010; 9:1533-40. [PMID: 20063903 DOI: 10.1021/pr9010266] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The humanized monoclonal antibody IgG1 in combination with chemotherapy has been demonstrated to enhance survival benefit in cancer treatment. Despite positive outcomes, some cancer cells develop multidrug resistance. Numerous mechanisms in cancers can be involved in the process of treatment therapy and most of them are not still well understood. To address how the carbohydrate moieties of cells are affected during treatment, the glycan profiles from the two most common cancer cell lines - human breast MCF-7 carcinoma and T-lymphoblastoid CEM cells - were studied here and compared with profiles after treatment with Herceptin alone or in combination with Lipofectamine mixed with plasmid DNA to form Lipoplex. N-Glycans were released from total cells by digestion with PNGaseF and analyzed by matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS). In summary, both original cell lines showed a dominant occurrence of high-mannose glycans. After treatment, these structures were suppressed and biantennary core-fucosylated glycans originating from IgG1 were the major carbohydrate products identified in cells. The high incidence of additional fucosylated or nonfucosylated galactosylated oligosaccharides, which were not detected in original cells or Herceptin, varied with conditions and time of exposure of cells to the antibody. The results presented in this study provide strong evidence for a role of glycosylation during antibody treatment.
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Affiliation(s)
- Erika Lattová
- Department of Chemistry, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada
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Müthing J, Distler U. Advances on the compositional analysis of glycosphingolipids combining thin-layer chromatography with mass spectrometry. MASS SPECTROMETRY REVIEWS 2010; 29:425-479. [PMID: 19609886 DOI: 10.1002/mas.20253] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Glycosphingolipids (GSLs), composed of a hydrophilic carbohydrate chain and a lipophilic ceramide anchor, play pivotal roles in countless biological processes, including infectious diseases and the development of cancer. Knowledge of the number and sequence of monosaccharides and their anomeric configuration and linkage type, which make up the principal items of the glyco code of biologically active carbohydrate chains, is essential for exploring the function of GSLs. As part of the investigation of the vertebrate glycome, GSL analysis is undergoing rapid expansion owing to the application of novel biochemical and biophysical technologies. Mass spectrometry (MS) takes part in the network of collaborations to further unravel structural and functional aspects within the fascinating world of GSLs with the ultimate aim to better define their role in human health and disease. However, a single-method analytical MS technique without supporting tools is limited yielding only partial structural information. Because of its superior resolving power, robustness, and easy handling, high-performance thin-layer chromatography (TLC) is widely used as an invaluable tool in GSL analysis. The intention of this review is to give an insight into current advances obtained by coupling supplementary techniques such as TLC and mass spectrometry. A retrospective view of the development of this concept and the recent improvements by merging (1) TLC separation of GSLs, (2) their detection with oligosaccharide-specific proteins, and (3) in situ MS analysis of protein-detected GSLs directly on the TLC plate, are provided. The procedure works on a nanogram scale and was successfully applied to the identification of cancer-associated GSLs in several types of human tumors. The combination of these two supplementary techniques opens new doors by delivering specific structural information of trace quantities of GSLs with only limited investment in sample preparation.
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Affiliation(s)
- Johannes Müthing
- Institute for Hygiene, University of Münster, Robert-Koch-Str. 41, D-48149 Münster, Germany.
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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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41
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Müsken A, Souady J, Dreisewerd K, Zhang W, Distler U, Peter-Katalinić J, Miller-Podraza H, Karch H, Müthing J. Application of thin-layer chromatography/infrared matrix-assisted laser desorption/ionization orthogonal time-of-flight mass spectrometry to structural analysis of bacteria-binding glycosphingolipids selected by affinity detection. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2010; 24:1032-1038. [PMID: 20213676 DOI: 10.1002/rcm.4480] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Glycosphingolipids (GSLs) play key roles in the manifestation of infectious diseases as attachment sites for pathogens. The thin-layer chromatography (TLC) overlay assay represents one of the most powerful approaches for the detection of GSL receptors of microorganisms. Here we report on the direct structural characterization of microbial GSL receptors by employment of the TLC overlay assay combined with infrared matrix-assisted laser desorption/ionization orthogonal time-of-flight mass spectrometry (IR-MALDI-o-TOF-MS). The procedure includes TLC separation of GSL mixtures, overlay of the chromatogram with GSL-specific bacteria, detection of bound microbes with primary antibodies against bacterial surface proteins and appropriate alkaline phosphatase labeled secondary antibodies, and in situ MS analysis of bacteria-specific GSL receptors. The combined method works on microgram scale of GSL mixtures and is advantageous in that it omits laborious and time-consuming GSL extraction from the silica gel layer. This technique was successfully applied to the compositional analysis of globo-series neutral GSLs recognized by P-fimbriated Escherichia coli bacteria, which were used as model microorganisms for infection of the human urinary tract. Thus, direct TLC/IR-MALDI-o-TOF-MS adds a novel facet to this fast and sensitive method offering a wide range of applications for the investigation of carbohydrate-specific pathogens involved in human infectious diseases.
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Affiliation(s)
- Anne Müsken
- Institute for Hygiene, University of Münster, D-48149 Münster, Germany
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42
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Affiliation(s)
- Joseph Sherma
- Department of Chemistry, Lafayette College, Easton, Pennsylvania 18042
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Determination of sialic acid and gangliosides in biological samples and dairy products: A review. J Pharm Biomed Anal 2010; 51:346-57. [DOI: 10.1016/j.jpba.2009.04.023] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Revised: 04/17/2009] [Accepted: 04/23/2009] [Indexed: 11/20/2022]
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Souady J, Soltwisch J, Dreisewerd K, Haier J, Peter-Katalinić J, Müthing J. Structural Profiling of Individual Glycosphingolipids in a Single Thin-Layer Chromatogram by Multiple Sequential Immunodetection Matched with Direct IR-MALDI-o-TOF Mass Spectrometry. Anal Chem 2009; 81:9481-92. [DOI: 10.1021/ac901948h] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jamal Souady
- Institute of Medical Physics and Biophysics and Institute for Hygiene, University of Münster, D-48149 Münster, Germany, and Department of General Surgery, Münster University Hospital, D-48149 Münster, Germany
| | - Jens Soltwisch
- Institute of Medical Physics and Biophysics and Institute for Hygiene, University of Münster, D-48149 Münster, Germany, and Department of General Surgery, Münster University Hospital, D-48149 Münster, Germany
| | - Klaus Dreisewerd
- Institute of Medical Physics and Biophysics and Institute for Hygiene, University of Münster, D-48149 Münster, Germany, and Department of General Surgery, Münster University Hospital, D-48149 Münster, Germany
| | - Jörg Haier
- Institute of Medical Physics and Biophysics and Institute for Hygiene, University of Münster, D-48149 Münster, Germany, and Department of General Surgery, Münster University Hospital, D-48149 Münster, Germany
| | - Jasna Peter-Katalinić
- Institute of Medical Physics and Biophysics and Institute for Hygiene, University of Münster, D-48149 Münster, Germany, and Department of General Surgery, Münster University Hospital, D-48149 Münster, Germany
| | - Johannes Müthing
- Institute of Medical Physics and Biophysics and Institute for Hygiene, University of Münster, D-48149 Münster, Germany, and Department of General Surgery, Münster University Hospital, D-48149 Münster, Germany
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Zarei M, Muthing J, Peter-Katalinic J, Bindila L. Separation and identification of GM1b pathway Neu5Ac- and Neu5Gc gangliosides by on-line nanoHPLC-QToF MS and tandem MS: toward glycolipidomics screening of animal cell lines. Glycobiology 2009; 20:118-26. [DOI: 10.1093/glycob/cwp154] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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46
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Distler U, Souady J, Hülsewig M, Drmić-Hofman I, Haier J, Friedrich AW, Karch H, Senninger N, Dreisewerd K, Berkenkamp S, Schmidt MA, Peter-Katalinić J, Müthing J. Shiga toxin receptor Gb3Cer/CD77: tumor-association and promising therapeutic target in pancreas and colon cancer. PLoS One 2009; 4:e6813. [PMID: 19714252 PMCID: PMC2730034 DOI: 10.1371/journal.pone.0006813] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2009] [Accepted: 06/22/2009] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Despite progress in adjuvant chemotherapy in the recent decades, pancreatic and colon cancers remain common causes of death worldwide. Bacterial toxins, which specifically bind to cell surface-exposed glycosphingolipids, are a potential novel therapy. We determined the expression of globotriaosylceramide (Gb3Cer/CD77), the Shiga toxin receptor, in human pancreatic and colon adenocarcinomas. METHODOLOGY/PRINCIPAL FINDINGS Tissue lipid extracts of matched pairs of cancerous and adjacent normal tissue from 21 pancreatic and 16 colon cancer patients were investigated with thin-layer chromatography overlay assay combined with a novel mass spectrometry approach. Gb3Cer/CD77 was localized by immunofluorescence microscopy of cryosections from malignant and corresponding healthy tissue samples. 62% of pancreatic and 81% of colon adenocarcinomas showed increased Gb3Cer/CD77 expression, whereas 38% and 19% of malignant pancreas and colon tissue, respectively, did not, indicating an association of this marker with neoplastic transformation. Also, Gb3Cer/CD77 was associated with poor differentiation (G>2) in pancreatic cancer (P = 0.039). Mass spectrometric analysis evidenced enhanced expression of Gb3Cer/CD77 with long (C24) and short chain fatty acids (C16) in malignant tissues and pointed to the presence of hydroxylated fatty acid lipoforms, which are proposed to be important for receptor targeting. They could be detected in 86% of pancreatic and about 19% of colon adenocarcinomas. Immunohistology of tissue cryosections indicated tumor-association of these receptors. CONCLUSIONS/SIGNIFICANCE Enhanced expression of Gb3Cer/CD77 in most pancreatic and colon adenocarcinomas prompts consideration of Shiga toxin, its B-subunit or B-subunit-derivatives as novel therapeutic strategies for the treatment of these challenging malignancies.
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Affiliation(s)
- Ute Distler
- Institute of Hygiene, University of Münster, Münster, Germany
| | - Jamal Souady
- Institute of Medical Physics and Biophysics, University of Münster, Münster, Germany
| | - Marcel Hülsewig
- Institute of Hygiene, University of Münster, Münster, Germany
| | - Irena Drmić-Hofman
- Department of Pathology, Laboratory for Clinical and Forensic Genetics, University Hospital and Medical School Split, Split, Croatia
| | - Jörg Haier
- Department of General Surgery, University Hospital Münster, Münster, Germany
| | | | - Helge Karch
- Institute of Hygiene, University of Münster, Münster, Germany
| | - Norbert Senninger
- Department of General Surgery, University Hospital Münster, Münster, Germany
| | - Klaus Dreisewerd
- Institute of Medical Physics and Biophysics, University of Münster, Münster, Germany
| | | | | | - Jasna Peter-Katalinić
- Institute of Medical Physics and Biophysics, University of Münster, Münster, Germany
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Kirsch S, Müthing J, Peter-Katalinić J, Bindila L. On-line nano-HPLC/ESI QTOF MS monitoring of alpha2-3 and alpha2-6 sialylation in granulocyte glycosphingolipidome. Biol Chem 2009; 390:657-72. [PMID: 19361287 DOI: 10.1515/bc.2009.066] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel glycosphingolipidomic protocol using nano-high performance liquid chromatography coupled on-line to electrospray ionization quadrupole time-of-flight mass spectrometry (ESI-QTOF-MS) focusing on the separation of isomeric ganglioside structures is described here. A highly efficient separation of alpha2-3- and alpha2-6-sialylated ganglioside species of different carbohydrate chain length was achieved on an HILIC-amido column, followed by sensitive flow-through ESI-QTOF-MS detection and unambiguous structural identification by tandem MS experiments. The protocol was applied to encompass the glycosphingolipidome of human granulocytes, where 182 distinct components could be clearly identified and assigned regarding the ganglioside type and the isomer distribution.
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Affiliation(s)
- Stephan Kirsch
- Institute of Medical Physics and Biophysics, University of Münster, D-48149 Münster, Germany
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Meisen I, Distler U, Müthing J, Berkenkamp S, Dreisewerd K, Mathys W, Karch H, Mormann M. Direct Coupling of High-Performance Thin-Layer Chromatography with UV Spectroscopy and IR-MALDI Orthogonal TOF MS for the Analysis of Cyanobacterial Toxins. Anal Chem 2009; 81:3858-66. [DOI: 10.1021/ac900217q] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Iris Meisen
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany, Sequenom GmbH, Mendelssohnstrasse 15 d, 22761 Hamburg, Germany, and Institute of Medical Physics and Biophysics, University of Münster, Robert-Koch-Strasse 31, D-48149 Münster, Germany
| | - Ute Distler
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany, Sequenom GmbH, Mendelssohnstrasse 15 d, 22761 Hamburg, Germany, and Institute of Medical Physics and Biophysics, University of Münster, Robert-Koch-Strasse 31, D-48149 Münster, Germany
| | - Johannes Müthing
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany, Sequenom GmbH, Mendelssohnstrasse 15 d, 22761 Hamburg, Germany, and Institute of Medical Physics and Biophysics, University of Münster, Robert-Koch-Strasse 31, D-48149 Münster, Germany
| | - Stefan Berkenkamp
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany, Sequenom GmbH, Mendelssohnstrasse 15 d, 22761 Hamburg, Germany, and Institute of Medical Physics and Biophysics, University of Münster, Robert-Koch-Strasse 31, D-48149 Münster, Germany
| | - Klaus Dreisewerd
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany, Sequenom GmbH, Mendelssohnstrasse 15 d, 22761 Hamburg, Germany, and Institute of Medical Physics and Biophysics, University of Münster, Robert-Koch-Strasse 31, D-48149 Münster, Germany
| | - Werner Mathys
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany, Sequenom GmbH, Mendelssohnstrasse 15 d, 22761 Hamburg, Germany, and Institute of Medical Physics and Biophysics, University of Münster, Robert-Koch-Strasse 31, D-48149 Münster, Germany
| | - Helge Karch
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany, Sequenom GmbH, Mendelssohnstrasse 15 d, 22761 Hamburg, Germany, and Institute of Medical Physics and Biophysics, University of Münster, Robert-Koch-Strasse 31, D-48149 Münster, Germany
| | - Michael Mormann
- Institute for Hygiene, University of Münster, Robert-Koch-Strasse 41, D-48149 Münster, Germany, Sequenom GmbH, Mendelssohnstrasse 15 d, 22761 Hamburg, Germany, and Institute of Medical Physics and Biophysics, University of Münster, Robert-Koch-Strasse 31, D-48149 Münster, Germany
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Serb A, Schiopu C, Flangea C, Vukelić Z, Sisu E, Zagrean L, Zamfir AD. High-throughput analysis of gangliosides in defined regions of fetal brain by fully automated chip-based nanoelectrospray ionization multi-stage mass spectrometry. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2009; 15:541-553. [PMID: 19661562 DOI: 10.1255/ejms.1009] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Gangliosides (GGs), a large group of sialylated glycosphingolipids, are considered biomarkers of human brain development, aging and certain diseases. Determination of individual GG components in complex mixtures extracted from a human brain represents a fundamental prerequisite for correlating their specificity with the specialized function of each brain area. In the context of modern glycomics, detailed investigation of GG expression and structure in human brain requires a continuous development and application of innovative methods able to improve the quality of data and speed of analysis. In this work, for the first time, a high-throughput mapping and sequencing of gangliosides in human fetal brain was performed by a novel mass spectrometry (MS)-based approach developed recently in our laboratory. Three GG mixtures extracted and purified from different regions of the same fetal brain in the 36th gestational week: frontal neocortex (NEO36), white matter of the frontal lobe (FL36) and white matter of the occipital lobe (OL36) were subjected to comparative high-throughput screening and multi-stage fragmentation by fully automated chip-based nanoelectrospray ionization (nanoESI) high capacity ion trap (HCT) MS. Using this method, in only a few minutes of signal acquisitions, over 100 GG and asialo-GG species were detected and identified in the three mixtures. Obtained data revealed for the first time that differences in GG expression in human fetal brain are dependent on phylogenetic development rather than topographic factors. While a significant variation of GG distribution in NEO36 vs FL36 was observed, no significant differences in GG expression in white matter of frontal vs occipital lobe were detected. Additionally, the largest number of species was identified in NEO36, which correlates with the functional complexity of neocortex as the newest brain region. In the last stage of analysis, using MS(2)-MS(3) molecular ion fragmentation at variable amplitudes, a NEO36-associated GD1b isomer could clearly be discriminated. Present results indicate that the combination of fully automated chipESI with HCT MS(n) is able to provide ultra-fast, sensitive and reliable analyses of complex lipid-linked carbohydrates from which the pattern of their expression and structure in a certain type of bio-matrix can be determined.
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Affiliation(s)
- Alina Serb
- Mass Spectrometry Laboratory, National Institute for Research and Development in Electrochemistry and Condensed Matter, Plautius Andronescu Str 1, RO-300224, Timisoara, Romania
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Distler U, Souady J, Hülsewig M, Drmić-Hofman I, Haier J, Denz A, Grützmann R, Pilarsky C, Senninger N, Dreisewerd K, Berkenkamp S, Schmidt MA, Peter-Katalinić J, Müthing J. Tumor-associated CD75s- and iso-CD75s-gangliosides are potential targets for adjuvant therapy in pancreatic cancer. Mol Cancer Ther 2008; 7:2464-75. [DOI: 10.1158/1535-7163.mct-08-0353] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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