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Salta J, Arp FF, Kühne C, Reissig H. Multivalent 1,2,3‐Triazole‐Linked Carbohydrate Mimetics by Huisgen–Meldal‐Sharpless Cycloadditions of an Azidopyran. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Joana Salta
- Institut für Chemie und Biochemie Freie Universität Berlin Takustrasse 3 14195 Berlin Germany
| | - Fabian F. Arp
- Institut für Chemie und Biochemie Freie Universität Berlin Takustrasse 3 14195 Berlin Germany
| | - Christian Kühne
- Institut für Laboratoriumsmedizin Klinische Chemie und Pathobiochemie Charité‐Universitätsmedizin Berlin Augustenburger Platz 1 13353 Berlin Germany
| | - Hans‐Ulrich Reissig
- Institut für Chemie und Biochemie Freie Universität Berlin Takustrasse 3 14195 Berlin Germany
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2
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Salta J, Reissig H. Divalent Triazole‐Linked Carbohydrate Mimetics: Synthesis by Click Chemistry and Evaluation as Selectin Ligands. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000618] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Joana Salta
- Institut für Chemie und Biochemie Freie Universität Berlin Takustrasse 3 14195 Berlin Germany
| | - Hans‐Ulrich Reissig
- Institut für Chemie und Biochemie Freie Universität Berlin Takustrasse 3 14195 Berlin Germany
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Salta J, Dernedde J, Reissig HU. Synthesis of multivalent carbohydrate mimetics with aminopolyol end groups and their evaluation as L-selectin inhibitors. Beilstein J Org Chem 2015; 11:638-46. [PMID: 26124866 PMCID: PMC4464473 DOI: 10.3762/bjoc.11.72] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 04/21/2015] [Indexed: 11/23/2022] Open
Abstract
In this article a series of divalent and trivalent carbohydrate mimetics on the basis of an enantiopure aminopyran and of serinol is described. These aminopolyols are connected by amide bonds to carboxylic acid derived spacer units either by Schotten-Baumann acylation or by coupling employing HATU as reagent. The O-sulfation employing the SO3·DMF complex was optimized. It was crucial to follow this process by 700 MHz (1)H NMR spectroscopy to ensure full conversion and to use a refined neutralization and purification protocol. Many of the compounds could not be tested as L-selectin inhibitor by SPR due to their insolubility in water, nevertheless, a divalent and a trivalent amide showed surprisingly good activities with IC50 values in the low micromolar range.
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Affiliation(s)
- Joana Salta
- Freie Universität Berlin, Institut für Chemie und Biochemie, Takustrasse 3, D-14195 Berlin, Germany
| | - Jens Dernedde
- Charité Universitätsmedizin Berlin, Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, Campus Virchow Klinikum, Augustenburger Platz 1, D-13353 Berlin, Germany
| | - Hans-Ulrich Reissig
- Freie Universität Berlin, Institut für Chemie und Biochemie, Takustrasse 3, D-14195 Berlin, Germany
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Zandberg WF, Kumarasamy J, Pinto BM, Vocadlo DJ. Metabolic inhibition of sialyl-Lewis X biosynthesis by 5-thiofucose remodels the cell surface and impairs selectin-mediated cell adhesion. J Biol Chem 2012; 287:40021-30. [PMID: 23019334 DOI: 10.1074/jbc.m112.403568] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Sialyl-Lewis X (sLe(X)) is a tetrasaccharide that serves as a ligand for the set of cell adhesion proteins known as selectins. This interaction enables adhesion of leukocytes and cancer cells to endothelial cells within capillaries, resulting in their extravasation into tissues. The last step in sLe(X) biosynthesis is the α1,3-fucosyltrasferase (FUT)-catalyzed transfer of an L-fucose residue to carbohydrate acceptors. Impairing FUT activity compromises leukocyte homing to sites of inflammation and renders cancer cells less malignant. Inhibition of FUTs is, consequently, of great interest, but efforts to generate glycosyltransferase inhibitors, including FUT inhibitors, has proven challenging. Here we describe a metabolic engineering strategy to inhibit the biosynthesis of sLe(X) in cancer cells using peracetylated 5-thio-L-fucose (5T-Fuc). We show that 5T-Fuc is taken up by cancer cells and then converted into a sugar nucleotide analog, GDP-5T-Fuc, that blocks FUT activity and limits sLe(X) presentation on HepG2 cells with an EC(50) in the low micromolar range. GDP-5T-Fuc itself does not get transferred by either FUT3 or FUT7 at a measurable rate. We further demonstrate that treatment of cells with 5T-Fuc impaired their adhesive properties to immobilized adhesion molecules and human endothelial cells. 5T-Fuc, therefore, is a useful probe that can be used to modulate sLe(X) levels in cells to evaluate the consequences of inhibiting FUT-mediated sLe(X) formation. These data also reveal the utility of using sugar analogues that lead to formation of donor substrate analogues within cells as a general approach to blocking glycosyltransferases in cells.
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Affiliation(s)
- Wesley F Zandberg
- Department of Chemistry, Simon Fraser University, 8888 University Dr., Burnaby V5A 1S6, Canada
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Moreno-Vargas AJ, Molina L, Carmona AT, Ferrali A, Lambelet M, Spertini O, Robina I. Synthesis and Biological Evaluation ofS-Neofucopeptides as E- and P-Selectin Inhibitors. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800199] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Magnani JL. The discovery, biology, and drug development of sialyl Lea and sialyl Lex. Arch Biochem Biophys 2004; 426:122-31. [PMID: 15158662 DOI: 10.1016/j.abb.2004.04.008] [Citation(s) in RCA: 111] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2004] [Revised: 04/13/2004] [Indexed: 11/25/2022]
Abstract
The discoveries of sialylated, fucosylated lacto-, and neolacto-type carbohydrate structures were accomplished with the aid of analytical methods and monoclonal antibodies such as the immunostaining of thin layer chromatograms. Based on the use of such antibodies, these structures, notably sialyl Le(a) and sialyl Le(x), were demonstrated to be highly expressed in many malignant cancers. A diagnostic assay using one of these antibodies (CA19-9) is now established as one of the more commonly used assays for pancreatic and gastrointestinal cancers worldwide. Upon further study, several laboratories have demonstrated that the level of expression of these carbohydrate tumor markers is also positively correlated with patient survival and is a prognostic indicator of metastatic disease. Concurrent with this finding, both sialyl Le(a) and sialyl Le(x) were shown to bind to a family of carbohydrate-binding proteins involved in the extravasation of cells from the bloodstream, called the selectins. Thus, sialyl Le(a) and sialyl Le(x) expressed on cell surfaces play functional roles in medical conditions that require extravasation of cells from the bloodstream which include a wide range of inflammatory diseases and cancer metastasis. Many studies have confirmed the function of sialyl Le(a) and sialyl Le(x) in animal models of these diseases and the inhibition of binding of sialyl Le(a) and sialyl Le(x) to the selectins is a validated drug target in the pharmaceutical industry. Thus, a new class of drugs, arising from the field of glycobiology, is based on the rational design of small molecule drugs that mimic the structures sialyl Le(a) and sialyl Le(x) and can potently inhibit their functional binding to the selectins.
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Affiliation(s)
- John L Magnani
- GlycoMimetics Inc., 14915 Broschart Road, Rockville, MD, USA.
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Iyer SS, Rele SM, Baskaran S, Chaikof EL. Design and synthesis of hyaluronan-mimetic gemini disaccharides. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(02)01567-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Affiliation(s)
- Milton J Kiefel
- Centre for Biomolecular Science and Drug Discovery, Griffith University (Gold Coast Campus), PMB 50, Gold Coast Mail Centre, Queensland 9726, Australia
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9
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Kaila N, Thomas BE. Design and synthesis of sialyl Lewis(x) mimics as E- and P-selectin inhibitors. Med Res Rev 2002; 22:566-601. [PMID: 12369089 DOI: 10.1002/med.10018] [Citation(s) in RCA: 84] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The selectins are a family of cell-adhesion proteins that mediate the rolling of leukocytes on activated endothelial cells through the recognition of the carbohydrate epitope sialyl Lewis(x) (sLe(x)). Control of the leukocyte-endothelial cell adhesion process may prove useful in cases where excess recruitment of leukocytes can contribute to acute diseases such as stroke and reperfusion injury and chronic diseases such as psoriasis and rheumatoid arthritis. The development of molecules that block the interactions between sLe(x) and the selectins has become an active area of research. In this review, we will highlight the various approaches taken toward the development of sLe(x) mimetics as antagonists of E- and P-selectin, including the use of structural information about the selectins and their interactions with sLe(x) that have been revealed through the use of NMR, protein crystallography and molecular modeling.
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Affiliation(s)
- Neelu Kaila
- Department of Chemical Sciences and Biological Chemistry, WYETH, 200 Cambridge Park Drive, Cambridge, Massachusetts 02140, USA.
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Unger FM. The chemistry of oligosaccharide ligands of selectins: significance for the development of new immunomodulatory medicines. Adv Carbohydr Chem Biochem 2002; 57:207-435. [PMID: 11836943 DOI: 10.1016/s0065-2318(01)57018-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- F M Unger
- Institute of Chemistry and Center for Ultrastructure Research, Agricultural University, Vienna, Austria
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Bradley SJ, Fazli A, Kiefel MJ, von Itzstein M. Synthesis of novel sialylmimetics as biological probes. Bioorg Med Chem Lett 2001; 11:1587-90. [PMID: 11412987 DOI: 10.1016/s0960-894x(01)00276-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Glycomimetics are increasingly being recognised as powerful tools in the search for novel compounds that possess useful biological properties. This paper describes our preliminary efforts towards the development of novel mimetics of sialic acid thioglycosides. These sialylmimetics are readily prepared and have been shown, in some instances, to have biological properties similar to sialic acid thioglycosides.
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Affiliation(s)
- S J Bradley
- Department of Medicinal Chemistry, Monash University (Parkville Campus), 381 Royal Parade, Parkville, Victoria, 3052, Australia
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Marinier A, Martel A, Bachand C, Plamondon S, Turmel B, Daris JP, Banville J, Lapointe P, Ouellet C, Dextraze P, Menard M, Wright JJ, Alford J, Lee D, Stanley P, Nair X, Todderud G, Tramposch KM. Novel mimics of sialyl Lewis X: design, synthesis and biological activity of a series of 2- and 3-malonate substituted galactoconjugates. Bioorg Med Chem 2001; 9:1395-427. [PMID: 11408160 DOI: 10.1016/s0968-0896(01)00015-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A series of potent inhibitors of P-selectin as potential anti-inflammatory agents is reported. These compounds are derivatives of galactocerebrosides bearing a malonate side chain in positions 2 and 3 of the galactose moiety. Based on the binding mode of sialyl Lewis X, the two acidic groups of the malonate are designed to form ionic interactions with two important lysines in the active site of P-selectin, Lys113 and Lys111. On the other hand, the 4- and 6-hydroxy groups on the galactose ring are arranged to chelate the calcium ion in the P-selectin active site. The synthesis and the biological activity of this series of compounds are described. Lead compounds having a greater potency than sialyl Lewis X are identified.
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Affiliation(s)
- A Marinier
- Department of Chemistry, Bristol-Myers Squibb Pharmaceutical Research Institute, 100, blvd. de l'Industrie, Candiac, Canada J5 R 1J1.
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Kieburg C, Sadalapure K, Lindhorst T. Glucose-Based AB2-Building Blocks for the Construction of Branched Glycopeptidomimetics. European J Org Chem 2000. [DOI: 10.1002/1099-0690(200006)2000:11<2035::aid-ejoc2035>3.0.co;2-v] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kretzschmar G, Toepfer A, Sonnentag M. Short synthesis of sulfatide- and SQDG-mimetics as small molecular weight selectin inhibitors. Tetrahedron 1998. [DOI: 10.1016/s0040-4020(98)00950-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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