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Namme R, Mitsugi T, Takahashi H, Ikegami S. Development of Ketoside-Type Analogues of Trehalose by Using α-Stereoselective O-Glycosidation of Ketose. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700145] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Wessel HP, Trumtel M. The Synthesis of the 2′′- and 2′′′-Monodeoxygenated Analogues of β-Maltosyl-(1→4)-Trehalose. J Carbohydr Chem 2006. [DOI: 10.1080/07328309708005754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Hans Peter Wessel
- a F. Hoffmann-La Roche Ltd, Pharma Division, Preclinical Research Dept. PRPV , Building 15/30 CH-4070, Basel, Switzerland
| | - Michel Trumtel
- a F. Hoffmann-La Roche Ltd, Pharma Division, Preclinical Research Dept. PRPV , Building 15/30 CH-4070, Basel, Switzerland
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Peter Wessel H, Minder R. The Synthesis of the 3′- and 3′′′-Monodeoxygenated Derivatives of β-Maltosyl-(1→4)-Trehalose. J Carbohydr Chem 2006. [DOI: 10.1080/07328309708006542] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Hans Peter Wessel
- a Pharma Division , Preclinical Research F. Hoffmann-La Roche Ltd , CH-4070, Basel, Switzerland
| | - Rudolf Minder
- a Pharma Division , Preclinical Research F. Hoffmann-La Roche Ltd , CH-4070, Basel, Switzerland
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Borbás A, Csávás M, Szilágyi L, Májer G, Lipták A. Replacement of Carbohydrate Sulfates by Sugar C‐Sulfonic Acid Derivatives. J Carbohydr Chem 2006. [DOI: 10.1081/car-120037571] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Anikó Borbás
- a Research Group for Carbohydrates of the Hungarian Academy of Sciences , P.O. Box 55, Debrecen, H‐4010, Hungary
| | - Magdolna Csávás
- a Research Group for Carbohydrates of the Hungarian Academy of Sciences , P.O. Box 55, Debrecen, H‐4010, Hungary
| | - László Szilágyi
- b Department of Organic Chemistry, Faculty of Science , University of Debrecen , Debrecen, Hungary
| | - Gábor Májer
- a Research Group for Carbohydrates of the Hungarian Academy of Sciences , P.O. Box 55, Debrecen, H‐4010, Hungary
| | - András Lipták
- a Research Group for Carbohydrates of the Hungarian Academy of Sciences , P.O. Box 55, Debrecen, H‐4010, Hungary
- c Department of Biochemistry, Faculty of Science , University of Debrecen , Debrecen, Hungary
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Wessel HP, Minder R, Trumtel M. The Synthesis of Four Dideoxygenated Analogues of β-Maltosyl-(1→4)-Trehalose. J Carbohydr Chem 1998. [DOI: 10.1080/07328309808001900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Regan J, McGarry D, Bruno J, Green D, Newman J, Hsu CY, Kline J, Barton J, Travis J, Choi YM, Volz F, Pauls H, Harrison R, Zilberstein A, Ben-Sasson SA, Chang M. Anionic- and lipophilic-mediated surface binding inhibitors of human leukocyte elastase. J Med Chem 1997; 40:3408-22. [PMID: 9341916 DOI: 10.1021/jm970251r] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We report the synthesis of a series of diphenylmethane-based oligomers containing anionic and lipophilic functionalities that are potent inhibitors of human leukocyte elastase (HLE). The enzyme inhibition is regulated by the size of the oligomer, as well as, the number of charges. Lipophilicity is an important element in determining potency and specificity against other basic enzymes. Compounds whose scaffolds contain three phenoxyacetic acid groups and three alkyl ethers are competitive and specific inhibitors of HLE with Ki = 20 nM. The mechanism of action of this class of compounds is believed to involve multidendate interactions with the surface of HLE near the active site which prevents substrate access to the catalytic site.
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Affiliation(s)
- J Regan
- Department of Medicinal Chemistry, Rhône-Poulenc Rorer, Collegeville, Pennsylvania 19426, USA
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Wessel HP, Viaud MC, Trumtel M. Selectively Deoxygenated Derivatives of β-Maltosyl-(1→4)-Trehalose as Biological Probes. II. the Synthesis of the 4- and 4′″-Monodeoxygenated Analogues. J Carbohydr Chem 1996. [DOI: 10.1080/07328309608005691] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wessel HP, Trumtel M, Minder R. Selectively Deoxygenated Derivatives of β-Maltosyl-(1→4)-Trehalose as Biological Probes. J Carbohydr Chem 1996. [DOI: 10.1080/07328309608005672] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Deng S, Pascual M, Lou J, Bühler L, Wessel HP, Grau G, Schifferli JA, Morel P. New synthetic sulfated oligosaccharides prolong survival of cardiac xenografts by inhibiting release of heparan sulfate from endothelial cells. Transplantation 1996; 61:1300-5. [PMID: 8629287 DOI: 10.1097/00007890-199605150-00003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Binding of recipient natural antibodies to the endothelium of the graft, complement activation, endothelial cell activation, and microvascular thrombosis are major events in the hyperacute rejection of organ xenografts. The aim of this study was to investigate the effects of two new synthetic sulfated oligosaccharides (A and B) on the survival of discordant cardiac xenografts in the guinea pig-to-rat model. In untreated recipients, hyperacute rejection occurred in 5 min (median; range, 4-6 min) and immunohistological analysis of all the grafts revealed deposition of IgM and C3 along the endothelium. Administration of oligosaccharides A and B prior to revascularization prolonged the survival of xenografts in a dose-dependent manner, up to 113 min (median; range, 42-145 min) and 86 min (median; range, 35-108 min), respectively, when doses of 20 mg/kg were used. There were no bleeding complications. Histological examination of the rejected grafts showed a picture of hyperacute rejection, with no difference in IgM and C3 deposition as compared with the untreated animals. In cell culture experiments, the release of heparan sulfate from guinea pig cardiac endothelial cells induced by rat serum was inhibited by both saccharides in a dose-dependent manner. The results indicate that these new synthetic sulfated oligosaccharides are effective for prolongation of discordant xenograft survival, possibly by interfering with endothelial cell activation. Such substances may be of value in other xenotransplant combinations.
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Affiliation(s)
- S Deng
- Department of Surgery, University Hospital of Geneva, Switzerland
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Mayer S, Schleimer M. Quantitative determination of heparinoid mimetics in human and rat plasma by micellar electrokinetic chromatography. J Chromatogr A 1996; 730:297-303. [PMID: 8680591 DOI: 10.1016/0021-9673(95)01202-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The investigated new class of heparinoid mimetics are spaced persulfated carbohydrates designed to increase the success rate of angioplasty and bypass surgery by preventing restenosis without increasing the risk of bleeding. Due to the presence of sulfate groups, these compounds are highly charged and, for preclinical kinetic investigations only small sample volumes of rat plasma were available. Therefore, capillary electrophoresis (CE) was applied. A bioanalytical method based on micellar elektrokinetic chromatography (MEKC) with UV-detection was developed for the selective quantitation of heparinoid mimetics (e.g., Ro 48-0843, Ro 48-3151, Ro 47-6199 and Ro 48-8722) in plasma. Using this method, only small volumes of plasma were required, which could be introduced directly into the separation capillary after 1:1 dilution with 100 mM aqueous sodium dodecyl sulfate (SDS). For increased sample throughput, an additional ultrafiltration step was performed after SDS-dilution of the plasma sample, improving both reproducibility and robustness of the method considerably. The sensitivity of the new method (3 micrograms/ml) was sufficient to follow plasma levels in pharmacokinetic studies. The practicability of this easy and rapid assay was demonstrated by the analysis of more than 350 plasma samples from pharmacokinetic studies performed in rats.
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Affiliation(s)
- S Mayer
- Department of Drug Metabolism, F. Hoffmann-La Roche Ltd., Basle, Switzerland
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The smooth muscle cell antiproliferative activity of heparan sulfate model oligosaccharides. Bioorg Med Chem Lett 1996. [DOI: 10.1016/0960-894x(96)00047-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Wessel HP, Minder R, Englert G. Synthetic α,β-(1→4)-Glucan Oligosaccharides as Models for Heparan Sulfate. Part II. J Carbohydr Chem 1996. [DOI: 10.1080/07328309608005439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Selectively deoxygenated sulfated tetrasaccharides as probes for the investigation of smooth muscle cell antiproliferative activity. Bioorg Med Chem Lett 1996. [DOI: 10.1016/0960-894x(95)00554-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Barresi F, Hindsgaul O. Chemically Synthesized Oligosaccharides, 1994. A Searchable Table of Glycosidic Linkages. J Carbohydr Chem 1995. [DOI: 10.1080/07328309508005396] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wessel HP, Minder R, Englert G. Synthetic α,β(1→4)-Glucan Oligosaccharides as Models for Heparan Sulfate. J Carbohydr Chem 1995. [DOI: 10.1080/07328309508005398] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wessel HP, Bartsch S. Conformational flexibility in highly sulfated beta-D-glucopyranoside derivatives. Carbohydr Res 1995; 274:1-9. [PMID: 7585701 DOI: 10.1016/0008-6215(95)00131-c] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Triggered by findings on heparin-like disaccharides, the conformation of sulfated glucopyranosides was investigated. Sodium (methyl 2,3,4-tri-O-sulfonato-beta-D-glucopyranosid)uronate tetrasodium salt is in a conformational equilibrium, to which a non-chair conformation contributes. The same is true for methyl (methyl 2,3,4-tri-O-sulfonato-beta-D-glucopyranosid)uronate trisodium salt, methyl 2,3,4,6-tetra-O-sulfonato-beta-D-glucopyranoside tetrasodium salt, and octa-O-sulfonato-beta, beta-trehalose octasodium salt, with less obvious non-chair contributions. The effect is charge related. The conformational effect, which does not occur in analogous alpha-D-glucopyranoside derivatives, is discussed in terms of the anomeric effect.
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Affiliation(s)
- H P Wessel
- F. Hoffmann-La Roche Ltd, Pharma Division, Basel, Switzerland
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Wessel HP, Vieira E, Trumtel M, Tschopp TB, Iberg N. The heparin-like antiproliferative activity of sulfated tetrasaccharides is sensitive to structural variation. Bioorg Med Chem Lett 1995. [DOI: 10.1016/0960-894x(95)00051-t] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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