1
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Manna T, Rana A, Misra AK. Synthesis of unsymmetrical glycosyl diselenides by the treatment of symmetrical diselenides with glycosyl selenocyanates. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132358] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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2
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Wu X, McFall-Boegeman H, Rashidijahanabad Z, Liu K, Pett C, Yu J, Schorlemer M, Ramadan S, Behren S, Westerlind U, Huang X. Synthesis and immunological evaluation of the unnatural β-linked mucin-1 Thomsen-Friedenreich conjugate. Org Biomol Chem 2021; 19:2448-2455. [PMID: 33645601 PMCID: PMC8011953 DOI: 10.1039/d1ob00007a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
MUC1 glycopeptides are attractive antigens for anti-cancer vaccine development. One potential drawback in using the native MUC1 glycopeptide for vaccine design is the instability of the O-glycosyl linkage between the glycan and the peptide backbone to glycosidase. To overcome this challenge, a MUC1 glycopeptide mimic has been synthesized with the galactose-galactosamine disaccharide linked with threonine (Thomsen-Friedenreich or Tf antigen) through an unnatural β-glycosyl bond. The resulting MUC1-β-Tf had a much-enhanced stability toward a glycosidase capable of cleaving the glycan from the corresponding MUC1 glycopeptide with the natural α-Tf linkage. The MUC1-β-Tf was subsequently conjugated with a powerful carrier bacteriophage Qβ. The conjugate induced high levels of IgG antibodies in clinically relevant human MUC1 transgenic mice, which cross-recognized not only the natural MUC1-α-Tf glycopeptide but also MUC1 expressing tumor cells, supporting the notion that a simple switch of the stereochemistry of the glycan/peptide linkage can be a strategy for anti-cancer vaccine epitope design for glycopeptides.
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Affiliation(s)
- Xuanjun Wu
- National Glycoengineering Research Center, Shandong University, Qingdao, Shandong 266237, China
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3
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Compañón I, Guerreiro A, Mangini V, Castro-López J, Escudero-Casao M, Avenoza A, Busto JH, Castillón S, Jiménez-Barbero J, Asensio JL, Jiménez-Osés G, Boutureira O, Peregrina JM, Hurtado-Guerrero R, Fiammengo R, Bernardes GJL, Corzana F. Structure-Based Design of Potent Tumor-Associated Antigens: Modulation of Peptide Presentation by Single-Atom O/S or O/Se Substitutions at the Glycosidic Linkage. J Am Chem Soc 2019; 141:4063-4072. [PMID: 30726084 DOI: 10.1021/jacs.8b13503] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
GalNAc-glycopeptides derived from mucin MUC1 are an important class of tumor-associated antigens. α- O-glycosylation forces the peptide to adopt an extended conformation in solution, which is far from the structure observed in complexes with a model anti-MUC1 antibody. Herein, we propose a new strategy for designing potent antigen mimics based on modulating peptide/carbohydrate interactions by means of O → S/Se replacement at the glycosidic linkage. These minimal chemical modifications bring about two key structural changes to the glycopeptide. They increase the carbohydrate-peptide distance and change the orientation and dynamics of the glycosidic linkage. As a result, the peptide acquires a preorganized and optimal structure suited for antibody binding. Accordingly, these new glycopeptides display improved binding toward a representative anti-MUC1 antibody relative to the native antigens. To prove the potential of these glycopeptides as tumor-associated MUC1 antigen mimics, the derivative bearing the S-glycosidic linkage was conjugated to gold nanoparticles and tested as an immunogenic formulation in mice without any adjuvant, which resulted in a significant humoral immune response. Importantly, the mice antisera recognize cancer cells in biopsies of breast cancer patients with high selectivity. This finding demonstrates that the antibodies elicited against the mimetic antigen indeed recognize the naturally occurring antigen in its physiological context. Clinically, the exploitation of tumor-associated antigen mimics may contribute to the development of cancer vaccines and to the improvement of cancer diagnosis based on anti-MUC1 antibodies. The methodology presented here is of general interest for applications because it may be extended to modulate the affinity of biologically relevant glycopeptides toward their receptors.
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Affiliation(s)
- Ismael Compañón
- Departamento de Química , Universidad de La Rioja , Centro de Investigación en Síntesis Química , 26006 Logroño , Spain
| | - Ana Guerreiro
- Instituto de Medicina Molecular, Faculdade de Medicina , Universidade de Lisboa , Avenida Professor Egas Moniz , 1649-028 Lisboa , Portugal
| | - Vincenzo Mangini
- Center for Biomolecular Nanotechnologies@UniLe , Istituto Italiano di Tecnologia (IIT) , 73010 Arnesano , Lecce , Italy
| | - Jorge Castro-López
- Institute of Biocomputation and Physics of Complex Systems (BIFI) , University of Zaragoza , BIFI-IQFR (CSIC), Fundación ARAID , 50018 Zaragoza , Spain
| | - Margarita Escudero-Casao
- Departament de Química Analítica i Química Orgànica, Facultat de Química , Universitat Rovira i Virgili , 43007 Tarragona , Spain
| | - Alberto Avenoza
- Departamento de Química , Universidad de La Rioja , Centro de Investigación en Síntesis Química , 26006 Logroño , Spain
| | - Jesús H Busto
- Departamento de Química , Universidad de La Rioja , Centro de Investigación en Síntesis Química , 26006 Logroño , Spain
| | - Sergio Castillón
- Departament de Química Analítica i Química Orgànica, Facultat de Química , Universitat Rovira i Virgili , 43007 Tarragona , Spain
| | - Jesús Jiménez-Barbero
- CIC bioGUNE , Bizkaia Technology Park , Building 801A , 48170 Derio , Spain.,Ikerbasque , Basque Foundation for Science , Maria Diaz de Haro 13 , 48009 Bilbao , Spain.,Department of Organic Chemistry II, Faculty of Science & Technology , University of the Basque Country , 48940 Leioa , Spain
| | - Juan L Asensio
- Instituto de Química Orgánica General , IQOG-CSIC , 28006 Madrid , Spain
| | - Gonzalo Jiménez-Osés
- Departamento de Química , Universidad de La Rioja , Centro de Investigación en Síntesis Química , 26006 Logroño , Spain.,CIC bioGUNE , Bizkaia Technology Park , Building 801A , 48170 Derio , Spain
| | - Omar Boutureira
- Departament de Química Analítica i Química Orgànica, Facultat de Química , Universitat Rovira i Virgili , 43007 Tarragona , Spain
| | - Jesús M Peregrina
- Departamento de Química , Universidad de La Rioja , Centro de Investigación en Síntesis Química , 26006 Logroño , Spain
| | - Ramón Hurtado-Guerrero
- Institute of Biocomputation and Physics of Complex Systems (BIFI) , University of Zaragoza , BIFI-IQFR (CSIC), Fundación ARAID , 50018 Zaragoza , Spain
| | - Roberto Fiammengo
- Center for Biomolecular Nanotechnologies@UniLe , Istituto Italiano di Tecnologia (IIT) , 73010 Arnesano , Lecce , Italy
| | - Gonçalo J L Bernardes
- Instituto de Medicina Molecular, Faculdade de Medicina , Universidade de Lisboa , Avenida Professor Egas Moniz , 1649-028 Lisboa , Portugal.,Department of Chemistry , University of Cambridge , Lensfield Road , CB2 1EW Cambridge , U.K
| | - Francisco Corzana
- Departamento de Química , Universidad de La Rioja , Centro de Investigación en Síntesis Química , 26006 Logroño , Spain
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4
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Gutiérrez-Jiménez MI, Aydillo C, Navo CD, Avenoza A, Corzana F, Jiménez-Osés G, Zurbano MM, Busto JH, Peregrina JM. Bifunctional Chiral Dehydroalanines for Peptide Coupling and Stereoselective S-Michael Addition. Org Lett 2016; 18:2796-9. [DOI: 10.1021/acs.orglett.6b00840] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marta I. Gutiérrez-Jiménez
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Carlos Aydillo
- CECB,
Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Claudio D. Navo
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Alberto Avenoza
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Francisco Corzana
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Gonzalo Jiménez-Osés
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
- Institute
of Biocomputation and Physics of Complex Systems (BIFI), University of Zaragoza, BIFI-IQFR (CSIC), 50018 Zaragoza, Spain
| | - María M. Zurbano
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Jesús H. Busto
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Jesús M. Peregrina
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
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5
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Huo CX, Zheng XJ, Xiao A, Liu CC, Sun S, Lv Z, Ye XS. Synthetic and immunological studies of N-acyl modified S-linked STn derivatives as anticancer vaccine candidates. Org Biomol Chem 2015; 13:3677-90. [DOI: 10.1039/c4ob02424a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-Modified S-linked STn glycoconjugates significantly stimulated the production of IgG antibodies capable of recognizing the naturally occurring STn antigen.
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Affiliation(s)
- Chang-Xin Huo
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- and Center for Molecular and Translational Medicine
- Peking University
- Beijing 100191
| | - Xiu-Jing Zheng
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- and Center for Molecular and Translational Medicine
- Peking University
- Beijing 100191
| | - An Xiao
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- and Center for Molecular and Translational Medicine
- Peking University
- Beijing 100191
| | - Chang-Cheng Liu
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- and Center for Molecular and Translational Medicine
- Peking University
- Beijing 100191
| | - Shuang Sun
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- and Center for Molecular and Translational Medicine
- Peking University
- Beijing 100191
| | - Zhuo Lv
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- and Center for Molecular and Translational Medicine
- Peking University
- Beijing 100191
| | - Xin-Shan Ye
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- and Center for Molecular and Translational Medicine
- Peking University
- Beijing 100191
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6
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Aydillo C, Compañón I, Avenoza A, Busto JH, Corzana F, Peregrina JM, Zurbano MM. S-Michael additions to chiral dehydroalanines as an entry to glycosylated cysteines and a sulfa-Tn antigen mimic. J Am Chem Soc 2014; 136:789-800. [PMID: 24372047 DOI: 10.1021/ja411522f] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Stereoselective sulfa-Michael addition of appropriately protected thiocarbohydrates to chiral dehydroalanines has been developed as a key step in the synthesis of biologically important cysteine derivatives, such as S-(β-D-glucopyranosyl)-D-cysteine, which has not been synthesized to date, and S-(2-acetamido-2-deoxy-α-D-galactopyranosyl)-L-cysteine, which could be considered as a mimic of Tn antigen. The corresponding diamide derivative was also synthesized and analyzed from a conformational viewpoint, and its bound state with a lectin was studied.
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Affiliation(s)
- Carlos Aydillo
- Departamento de Química, Universidad de La Rioja , Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
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7
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Titov DV, Gening ML, Tsvetkov YE, Nifantiev NE. Oligodentate glycoconjugates based on calixarenes: methods for the synthesis and biological activity. Russ Chem Bull 2014. [DOI: 10.1007/s11172-013-0082-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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8
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Aydillo C, Navo CD, Busto JH, Corzana F, Zurbano MM, Avenoza A, Peregrina JM. A Double Diastereoselective Michael-Type Addition as an Entry to Conformationally Restricted Tn Antigen Mimics. J Org Chem 2013; 78:10968-77. [DOI: 10.1021/jo4019396] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Carlos Aydillo
- Departamento de Química
and Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - Claudio D. Navo
- Departamento de Química
and Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - Jesús H. Busto
- Departamento de Química
and Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - Francisco Corzana
- Departamento de Química
and Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - María M. Zurbano
- Departamento de Química
and Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - Alberto Avenoza
- Departamento de Química
and Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - Jesús M. Peregrina
- Departamento de Química
and Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, Spain
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9
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Geraci C, Consoli GML, Granata G, Galante E, Palmigiano A, Pappalardo M, Di Puma SD, Spadaro A. First Self-Adjuvant Multicomponent Potential Vaccine Candidates by Tethering of Four or Eight MUC1 Antigenic Immunodominant PDTRP Units on a Calixarene Platform: Synthesis and Biological Evaluation. Bioconjug Chem 2013; 24:1710-20. [DOI: 10.1021/bc400242y] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Corrada Geraci
- CNR Istituto di Chimica Biomolecolare, Via P. Gaifami 18, I-95126 Catania, Italy
| | - Grazia M. L. Consoli
- CNR Istituto di Chimica Biomolecolare, Via P. Gaifami 18, I-95126 Catania, Italy
| | - Giuseppe Granata
- CNR Istituto di Chimica Biomolecolare, Via P. Gaifami 18, I-95126 Catania, Italy
- Dipartimento
di Scienze del Farmaco, Università di Catania, Viale A.
Doria 6, I-95125 Catania, Italy
| | - Eva Galante
- CNR Istituto di Chimica Biomolecolare, Via P. Gaifami 18, I-95126 Catania, Italy
| | - Angelo Palmigiano
- CNR Istituto per la Chimica e la Tecnologia dei Polimeri, Via P. Gaifami 18, I-95126 Catania, Italy
| | - Maria Pappalardo
- Dipartimento
di Scienze del Farmaco, Università di Catania, Viale A.
Doria 6, I-95125 Catania, Italy
| | - Salvatore D. Di Puma
- Dipartimento
di Scienze del Farmaco, Università di Catania, Viale A.
Doria 6, I-95125 Catania, Italy
| | - Angelo Spadaro
- Dipartimento
di Scienze del Farmaco, Università di Catania, Viale A.
Doria 6, I-95125 Catania, Italy
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10
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Brachet E, Brion JD, Alami M, Messaoudi S. Stereoselective Palladium-Catalyzed Alkenylation and Alkynylation of Thioglycosides. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300419] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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11
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Baryal KN, Zhu D, Li X, Zhu J. Umpolung Reactivity in the Stereoselective Synthesis of S-Linked 2-Deoxyglycosides. Angew Chem Int Ed Engl 2013; 52:8012-6. [DOI: 10.1002/anie.201301682] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 05/15/2013] [Indexed: 12/12/2022]
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12
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Baryal KN, Zhu D, Li X, Zhu J. Umpolung Reactivity in the Stereoselective Synthesis of S-Linked 2-Deoxyglycosides. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301682] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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13
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Oberbillig T, Löwe H, Hoffmann-Röder A. Synthesis of Fluorinated Glycosyl Amino Acid Building Blocks for MUC1 Cancer Vaccine Candidates by Microreactor-Assisted Glycosylation. J Flow Chem 2012. [DOI: 10.1556/jfc-d-12-00011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Oberbillig T, Mersch C, Wagner S, Hoffmann-Röder A. Antibody recognition of fluorinated MUC1 glycopeptide antigens. Chem Commun (Camb) 2012; 48:1487-9. [DOI: 10.1039/c1cc15139h] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Corzana F, Busto JH, Marcelo F, García de Luis M, Asensio JL, Martín-Santamaría S, Sáenz Y, Torres C, Jiménez-Barbero J, Avenoza A, Peregrina JM. Rational design of a Tn antigen mimic. Chem Commun (Camb) 2011; 47:5319-21. [DOI: 10.1039/c1cc10192g] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Dondoni A, Marra A. Calixarene and calixresorcarene glycosides: their synthesis and biological applications. Chem Rev 2010; 110:4949-77. [PMID: 20496911 DOI: 10.1021/cr100027b] [Citation(s) in RCA: 197] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alessandro Dondoni
- Dipartimento di Chimica, Laboratorio di Chimica Organica, Universita di Ferrara, Via L. Borsari 46, 44100 Ferrara, Italy.
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17
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Karch F, Hoffmann-Röder A. Synthesis of glycosylated β³-homo-threonine conjugates for mucin-like glycopeptide antigen analogues. Beilstein J Org Chem 2010; 6:47. [PMID: 20563275 PMCID: PMC2887299 DOI: 10.3762/bjoc.6.47] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Accepted: 04/09/2010] [Indexed: 11/23/2022] Open
Abstract
Glycopeptides from the mucin family decorated with tumour-associated carbohydrate antigens (TACA) have proven to be important target structures for the development of molecularly defined anti-cancer vaccines. The strategic incorporation of β-amino acid building blocks into such mucin-type sequences offers the potential to create pseudo-glycopeptide antigens with improved bioavailability for tumour immunotherapy. Towards this end, T(N) and TF antigen conjugates O-glycosidically linked to Fmoc-β³-homo-threonine were prepared in good yield via Arndt-Eistert homologation of the corresponding glycosyl α-amino acid derivative. By incorporation of T(N)-Fmoc-β³hThr conjugate into the 20 amino acid tandem repeat sequence of MUC1 using sequential solid-phase glycopeptide synthesis, a first example of a mixed α/β-hybrid glycopeptide building block was obtained. The latter is of interest for the development of novel glycoconjugate mimics and model structures for anti-cancer vaccines with increased biological half-life.
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Affiliation(s)
- Florian Karch
- Institut für Organische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
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18
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Wagner S, Mersch C, Hoffmann-Röder A. Fluorinated Glycosyl Amino Acids for Mucin-Like Glycopeptide Antigen Analogues. Chemistry 2010; 16:7319-30. [DOI: 10.1002/chem.200903294] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Geraci C, Consoli GML, Galante E, Bousquet E, Pappalardo M, Spadaro A. Calix[4]arene Decorated with Four Tn Antigen Glycomimetic Units and P3CS Immunoadjuvant: Synthesis, Characterization, and Anticancer Immunological Evaluation. Bioconjug Chem 2008; 19:751-8. [DOI: 10.1021/bc700411w] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Corrada Geraci
- Istituto di Chimica Biomolecolare, C.N.R., Via del Santuario 110, I-95028 Valverde (CT), Italy, and Dipartimento di Scienze Farmaceutiche - Università di Catania, Viale A. Doria 6, I-95125 Catania, Italy
| | - Grazia M. L. Consoli
- Istituto di Chimica Biomolecolare, C.N.R., Via del Santuario 110, I-95028 Valverde (CT), Italy, and Dipartimento di Scienze Farmaceutiche - Università di Catania, Viale A. Doria 6, I-95125 Catania, Italy
| | - Eva Galante
- Istituto di Chimica Biomolecolare, C.N.R., Via del Santuario 110, I-95028 Valverde (CT), Italy, and Dipartimento di Scienze Farmaceutiche - Università di Catania, Viale A. Doria 6, I-95125 Catania, Italy
| | - Ennio Bousquet
- Istituto di Chimica Biomolecolare, C.N.R., Via del Santuario 110, I-95028 Valverde (CT), Italy, and Dipartimento di Scienze Farmaceutiche - Università di Catania, Viale A. Doria 6, I-95125 Catania, Italy
| | - Maria Pappalardo
- Istituto di Chimica Biomolecolare, C.N.R., Via del Santuario 110, I-95028 Valverde (CT), Italy, and Dipartimento di Scienze Farmaceutiche - Università di Catania, Viale A. Doria 6, I-95125 Catania, Italy
| | - Angelo Spadaro
- Istituto di Chimica Biomolecolare, C.N.R., Via del Santuario 110, I-95028 Valverde (CT), Italy, and Dipartimento di Scienze Farmaceutiche - Università di Catania, Viale A. Doria 6, I-95125 Catania, Italy
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20
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Miermont A, Barnhill H, Strable E, Lu X, Wall KA, Wang Q, Finn MG, Huang X. Cowpea mosaic virus capsid: a promising carrier for the development of carbohydrate based antitumor vaccines. Chemistry 2008; 14:4939-47. [PMID: 18431733 PMCID: PMC2729768 DOI: 10.1002/chem.200800203] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Immunotherapy targeting tumor cell surface carbohydrates is a promising approach for cancer treatment. However, the low immunogenecity of carbohydrates presents a formidable challenge. We describe here the enhancement of carbohydrate immunogenicity by an ordered display on the surface of the cowpea mosaic virus (CPMV) capsid. The Tn glycan, which is overexpressed on numerous cancer cell surfaces, was selected as the model antigen for our study. Previously it has been shown that it is difficult to induce a strong T cell-dependent immune response against the monomeric form of Tn presented in several ways on different carriers. In this study, we first synthesized Tn antigens derivatized with either a maleimide or a bromoacetamide moiety that was conjugated selectively to a cysteine mutant of CPMV. The glycoconjugate was then injected into mice and pre- and post-immune antibody levels in the mice sera were measured by enzyme-linked immunosorbant assays. High total antibody titers and, more importantly, high IgG titers specific for Tn were obtained in the post-immune day 35 serum, suggesting the induction of T cell-dependent antibody isotype switching by the glycoconjugate. The antibodies generated were able to recognize Tn antigens presented in their native conformations on the surfaces of both MCF-7 breast cancer cells and the multidrug resistant breast cancer cell line NCI-ADR RES. These results suggest that the CPMV capsid can greatly enhance the immunogenicity of weak antigens such as Tn and this can provide a promising tool for the development of carbohydrate based anti-cancer vaccines.
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Affiliation(s)
- Adeline Miermont
- Department of Chemistry, The University of Toledo, 2801 W. Bancroft Street, MS 602, Toledo, OH 43606 (USA), Fax: (+1) 419-530-4033,
| | - Hannah Barnhill
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208 (USA)
| | - Erica Strable
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037 (USA), Fax: (+1) 858-784-8850,
| | - Xiaowei Lu
- Department of Chemistry, The University of Toledo, 2801 W. Bancroft Street, MS 602, Toledo, OH 43606 (USA), Fax: (+1) 419-530-4033,
| | - Katherine A. Wall
- Department of Medicinal and Biological Chemistry, The University of Toledo, 2801 W. Bancroft Street, MS 606, Toledo, OH 43606 (USA)
| | - Qian Wang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208 (USA)
| | - M. G. Finn
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037 (USA), Fax: (+1) 858-784-8850,
| | - Xuefei Huang
- Department of Chemistry, The University of Toledo, 2801 W. Bancroft Street, MS 602, Toledo, OH 43606 (USA), Fax: (+1) 419-530-4033,
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21
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Thayer DA, Yu HN, Galan MC, Wong CH. A general strategy toward S-linked glycopeptides. Angew Chem Int Ed Engl 2006; 44:4596-9. [PMID: 15991213 DOI: 10.1002/anie.200500090] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Desiree A Thayer
- Department of Chemistry and Skaggs Institute for Chemical Biology, Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
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22
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Kawai Y, Ando H, Ozeki H, Koketsu M, Ishihara H. A facile method for beta-selenoglycoside synthesis using beta-p-methylbenzoyl selenoglycoside as the selenating unit. Org Lett 2006; 7:4653-6. [PMID: 16209502 DOI: 10.1021/ol051804s] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] The reaction between alpha-glycosyl bromides and potassium p-methylselenobenzoate yields beta-p-methylbenzoyl selenoglycosides. The acyl selenoglycosides were activated by the action of a secondary amine and Cs2CO3 to produce an anomeric selenolate anion, which reacted in situ with various electrophiles to yield novel selenoglycosides while retaining the anomeric stereochemistry.
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Affiliation(s)
- Yumiko Kawai
- Department of Chemistry, Faculty of Engineering, 1-1 Yanagido, Gifu 501-1193, Japan
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23
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Stubbs KA, Macauley MS, Vocadlo DJ. A highly concise preparation of O-deacetylated arylthioglycosides of N-acetyl-D-glucosamine from 2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-alpha-D-glucopyranosyl chloride and aryl thiols or disulfides. Carbohydr Res 2006; 341:1764-9. [PMID: 16472788 DOI: 10.1016/j.carres.2005.12.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2005] [Revised: 12/19/2005] [Accepted: 12/24/2005] [Indexed: 11/27/2022]
Abstract
An expedient and mild route to a range of aryl 2-acetamido-2-deoxy-1-thio-beta-D-glucopyranosides has been devised from 2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-alpha-D-glucopyranosyl chloride and arylthiols or aryl disulfides using phase transfer catalysis conditions. This simple procedure compresses up to three synthetic steps into a one-pot reaction, obviating the need for tedious workups and chromatography and directly furnishes crystalline materials in good yields. The procedure is compatible with a range of thiols and disulfides and may be amenable for preparing a wide range of thioglycosides with various glycons and aglycons.
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Affiliation(s)
- Keith A Stubbs
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, Canada V5A 1S6
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24
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Awad L, Demange R, Zhu YH, Vogel P. The use of levoglucosenone and isolevoglucosenone as templates for the construction of C-linked disaccharides. Carbohydr Res 2006; 341:1235-52. [PMID: 16678805 DOI: 10.1016/j.carres.2006.04.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2006] [Revised: 04/10/2006] [Accepted: 04/12/2006] [Indexed: 11/19/2022]
Abstract
Because of their functionalities (enone, ketone, and acetal) and their bicyclic structure (steric factors), levoglucosenone (1,6-anhydro-3,4-dideoxy-beta-D-glycero-hex-3-enopyran-2-ulose) and isolevoglucosenone (1,6-anhydro-2,3-dideoxy-beta-D-glycero-hex-3-enopyran-4-ulose) are useful templates for the convergent and combinatorial synthesis of (1-->2), (1-->3), and (1-->4)-linked C-disaccharides in reactions combining them with sugar-derived carbaldehydes. Synthetic methods relying on conjugate nucleophilic additions of these enones, their combination with aluminum reagents and aldehydes (Baylis-Hillman reaction) and modified Takai-Hiyama-Nozaki-Kishi couplings of enol triflates derived from them with sugar-derived aldehydes are reviewed. Highly stereoselective methods have thus been developed. These allow the generation of disaccharide mimetics with a high molecular diversity.
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Affiliation(s)
- Loay Awad
- Laboratoire de Glycochimie et de Synthèse Asymétrique, Ecole Polytechnique Fédérale de Lausanne (EPFL), BCH, CH-1015 Lausanne, Switzerland.
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25
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Rich JR, Wakarchuk WW, Bundle DR. Chemical and Chemoenzymatic Synthesis of S-Linked Ganglioside Analogues and Their Protein Conjugates for Use as Immunogens. Chemistry 2006; 12:845-58. [PMID: 16196067 DOI: 10.1002/chem.200500518] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Analogues of the tumor-associated gangliosides GM(3) and GM(2) containing terminal S-linked neuraminic acid residues and an amino terminated, truncated ceramide homologue have been synthesized and conjugated to a protein. The synthesis involved coupling of a S-linked sialyl alpha(2-->3) galactose disaccharide with a glucosyl sphingosine analogue, followed by elaboration and deprotection to give amino-terminated glycosyl ceramide 1. Glycosyltransferase-catalyzed extension of the trisaccharide 1 provided access to the modified GM(2) tetrasaccharide 2 or sulphur-containing GD(3) analogue 30. Owing to their potentially enhanced resistance to endogenous exo-glycoside hydrolases and their inherent non-self character, carbohydrate antigens containing non-reducing terminal thioglycosidic linkages may be more immunogenic than O-linked antigens and may stimulate the production of antibodies capable of recognizing naturally occurring oligosaccharides. Our initial results suggest that in fact these antigens are viable immunogens and furthermore, that immune sera cross reacts with O-gangliosides in the context of a heterologous glycoprotein conjugate.
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Affiliation(s)
- Jamie R Rich
- Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Alberta, Edmonton, Canada
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26
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Grigalevicius S, Chierici S, Renaudet O, Lo-Man R, Dériaud E, Leclerc C, Dumy P. Chemoselective Assembly and Immunological Evaluation of Multiepitopic Glycoconjugates Bearing Clustered Tn Antigen as Synthetic Anticancer Vaccines. Bioconjug Chem 2005; 16:1149-59. [PMID: 16173792 DOI: 10.1021/bc050010v] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this paper we investigated the use of regioselectively addressable functionalized templates (RAFTs) as new scaffolds for the design of anticancer vaccine candidates. We report the synthesis of well-defined multiepitopic RAFT scaffolds and their immunological evaluation. These conjugates exhibit clustered Tn analogue as tumor-associated carbohydrate antigen (TACA, B-cell epitope) and the CD4+ helper T-cell peptide from the type 1 poliovirus. The saccharidic and peptidic epitopes were both synthesized separately and combined regioselectively to the RAFT core using a sequential oxime bond formation strategy. B- and T-antigenicity and immunogenicity of the vaccine candidates were investigated in vitro and in vivo. These studies clearly demonstrate that the saccharidic part of the conjugates is recognized by Tn-specific monoclonal antibodies. Moreover, the antibodies elicited by immunization of mice with our vaccine candidates recognize the native form of Tn epitope expressed on human tumor cells. Together with oxime ligation technique, these results suggest that the RAFT scaffold provides a promising and suitable tool for engineering potent synthetic anticancer vaccine.
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Affiliation(s)
- Saulius Grigalevicius
- LEDSS UMR 5616 and ICMG-FR2607, Université Joseph Fourier, BP 53, 38041 Grenoble Cedex 9, France
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27
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Thayer DA, Yu HN, Galan MC, Wong CH. A General Strategy toward S-Linked Glycopeptides. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200500090] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Awad L, Riedner J, Vogel P. C-Linked Disaccharide Analogue of the Thomsen-Friedenreich (T)-Epitope α-O-Conjugated toL-Serine. Chemistry 2005; 11:3565-73. [PMID: 15818568 DOI: 10.1002/chem.200401301] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Condensation of a silylated beta-D-galactopyranosylaldehyde (3) with isolevoglucosenone (4) in the presence of Et(2)AlI provided bicyclic enone 5. Subsequent addition of BnNHOMe gave adduct 6, which was converted into 4-O-acetyl-1,6-anhydro-3-C-[(1 R)-1,3,4,5,7-penta-O-acetyl-2,6-anhydro-D-glycero-L-manno-heptitol-1-C-yl]-2-azido-2,3-dideoxy-beta-D-galacto-hexopyranose after liberation of the 2-amino group, its transformation into a 2-azido moiety, desilylation, and peracetylation. Ring-opening of the 1,6-anhydro galactopyranosyl unit and O-glycosidation with Fmoc-Ser-O-tBu afforded a 5:1 mixture of alpha- and beta-galactosides. Treatment with CH(3)COSH gave pure N-[(9H-fluoren-9-ylmethoxy)carbonyl]-{4,6-di-O-acetyl-3-C-[(1 R)-2,6-anhydro 1,3,4,5,7-penta-O-acetyl-D-glycero-L-manno-heptitol-1-C-yl]-2-[(N-acetyl)amino]-2,3-dideoxy-alpha-D-galactopyranosyl}-l-serine tert-butyl ester (2), a protected form of a C-disaccharide analogue of the Thomsen-Friedenreich (or T) epitope (beta-D-Galp-(1-->3)-alpha-D-GalNAcp) alpha-O-conjugated to L-serine.
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Affiliation(s)
- Loay Awad
- Laboratory of Glycochemistry and Asymmetric Synthesis, Ecole Polytechnique Federale de Lausanne (EPFL), Switzerland
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29
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Knapp S, Amorelli B, Darout E, Ventocilla CC, Goldman LM, Huhn RA, Minnihan EC. A Family of Mycothiol Analogues. J Carbohydr Chem 2005. [DOI: 10.1081/car-200059965] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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30
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Steunenberg P, Jeanneret V, Zhu YH, Vogel P. C(1→4)-linked disaccharides through carbonylative Stille cross-coupling. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2004.11.048] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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31
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Demange R, Awad L, Vogel P. Synthesis of C-linked analogues of β-d-galactopyranosyl-(1→3)-d-galactopyranosides and of β-d-galactopyranosyl-(1→3)-d-galactal. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.tetasy.2004.09.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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Abstract
Investigation of direct S-glycosylation of homocysteine and cysteine containing peptides with O-acetyl protected glycosyl halides led under two-phase conditions in the presence of sodium carbonate as base to excellent results. Thus, from glucosyl bromide, galactosyl bromide, lactosyl bromide, sialyl chloride, and N-Troc protected 2-amino-2-deoxyglucosyl bromide S-glycosylated dipeptides 15, 18-21, 23, 24, and 26-29, respectively, were obtained in excellent yields. Alternatively, depending on the solubility of the peptide moiety, mixtures of DMF and water could be employed for successfully carrying out this reaction. Thus, S-glycosylated tripeptides 42-45 could be obtained. Combination of this method with chemical ligation was also successfully carried out.
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Affiliation(s)
- Xiangming Zhu
- Fachbereich Chemie, Universität Konstanz, Fach M 725, D-78457 Konstanz, Germany
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33
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Pappalardo M, Bousquet E, Annino A, Lombardo G, Bernardini R, Ronsisvalle G. Synthesis of new P3CS derivatives and their mitogenic activity on in vitro mice splenocytes. FARMACO (SOCIETA CHIMICA ITALIANA : 1989) 2003; 58:329-36. [PMID: 12727543 DOI: 10.1016/s0014-827x(02)00012-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Vaccination against tumors represents a relevant issue in current human cancer therapy. The N-terminal part of the lipoprotein from the outer membrane of Escherichia coli, tripalmitoyl-S-glyceryl-Cys-Ser (P(3)CS) and analogs with longer aminoacidic sequence are polyclonal activators for B-lymphocytes. Previous study reported that their N-2,2,2-trichloroethoxycarbonyl (Troc) derivatives increase immunocyte mitogenic activity. Therefore, in order to obtain compounds of greater activity and to investigate relationships between molecular structure of S-glyceryl skeleton and biological activity, we synthesized new Troc derivatives of P(3)CS. The mitogenicity of compounds was determined in vitro, by measuring in vitro [3H]-thymidine incorporation into splenocytes from Balb/c mice. Concentrations of compounds ranged from 0 to 64 micro g/ml. In particular, S-[2,3-bis(trichloroethoxycarbonyloxy)]-N-trichloroethoxycarbonyl dipeptide derivative exhibited significant mitogenic activity endowed with high pharmacological potency. These new series of compounds could be used as potent immunoadjuvants for the development of novel synthetic vaccines for tumor immunotherapy.
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Affiliation(s)
- Maria Pappalardo
- Department of Pharmaceutical Science, School of Pharmacy, School of Medicine, University of Catania, Viale Andrea 6, 95125, Catania, Italy.
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34
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Abstract
[structure: see text] The synthesis of a simplified thioglycosidic analogue (2) of mycothiol (1) is described. Evaluation of 2 against mycothiol S-conjugate amidase from Mycobacterium tuberculosis reveals good specific activity (7500 nmol min(-)(1) mg-protein(-)(1), vs 14 200 for 1), indicating that 2 can serve as a starting point for antitubercular drug design.
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Affiliation(s)
- Spencer Knapp
- Department of Chemistry and Chemical Biology, Rutgers The State University of New Jersey, 610 Taylor Rd., Piscataway, New Jersey 08854-8087, USA.
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35
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Abstract
A variety of functionalized thioglycosides and other derivatives (10-24) of 2-acetamido-2-deoxy-1-thio-alpha-D-galactopyranose have been prepared in good yields and with high anomeric purities by S-substitution reactions of the sulfide anion or sulfur-centered radical from mercaptan 6. Given the importance in nature of the alpha-GalNAc 1-O-linkage, and the greater chemical and biological stability of the corresponding 1-S-linkage, these thioconjugates may find application in studies of synthetic vaccines, enzyme inhibitors, glycomimetic scaffolds, and other complex carbohydrate systems.
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Affiliation(s)
- Spencer Knapp
- Department of Chemistry & Chemical Biology, Rutgers-The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854-8087, USA.
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36
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Zhu Y, van der Donk WA. Convergent Synthesis of Peptide Conjugates Using Dehydroalanines for Chemoselective Ligations. Org Lett 2001; 3:1189-92. [PMID: 11348191 DOI: 10.1021/ol015648a] [Citation(s) in RCA: 98] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text]. Protein and peptide conjugates such as glycopeptides, prenylated peptides, and lipopeptides play essential roles in biology. A rapid and convergent entry into a variety of these compounds is described. The methodology involves the introduction of a dehydroalanine into peptides and subsequent chemoselective conjugate addition of an appropriate thiolate nucleophile, including farnesylthiolate or thioglycosides.
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Affiliation(s)
- Y Zhu
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, USA
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