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Bermejo IA, Navo CD, Castro-López J, Guerreiro A, Jiménez-Moreno E, Sánchez Fernández EM, García-Martín F, Hinou H, Nishimura SI, García Fernández JM, Mellet CO, Avenoza A, Busto JH, Bernardes GJL, Hurtado-Guerrero R, Peregrina JM, Corzana F. Synthesis, conformational analysis and in vivo assays of an anti-cancer vaccine that features an unnatural antigen based on an sp 2-iminosugar fragment. Chem Sci 2020; 11:3996-4006. [PMID: 34122869 PMCID: PMC8152572 DOI: 10.1039/c9sc06334j] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The Tn antigen (GalNAc-α-1-O-Thr/Ser) is a well-known tumor-associated carbohydrate determinant. The use of glycopeptides that incorporate this structure has become a significant and promising niche of research owing to their potential use as anticancer vaccines. Herein, the conformational preferences of a glycopeptide with an unnatural Tn antigen, characterized by a threonine decorated with an sp2-iminosugar-type α-GalNAc mimic, have been studied both in solution, by combining NMR spectroscopy and molecular dynamics simulations, and in the solid state bound to an anti-mucin-1 (MUC1) antibody, by X-ray crystallography. The Tn surrogate can mimic the main conformer sampled by the natural antigen in solution and exhibits high affinity towards anti-MUC1 antibodies. Encouraged by these data, a cancer vaccine candidate based on this unnatural glycopeptide and conjugated to the carrier protein Keyhole Limpet Hemocyanin (KLH) has been prepared and tested in mice. Significantly, the experiments in vivo have proved that this vaccine elicits higher levels of specific anti-MUC1 IgG antibodies than the analog that bears the natural Tn antigen and that the elicited antibodies recognize human breast cancer cells with high selectivity. Altogether, we compile evidence to confirm that the presentation of the antigen, both in solution and in the bound state, plays a critical role in the efficacy of the designed cancer vaccines. Moreover, the outcomes derived from this vaccine prove that there is room for exploring further adjustments at the carbohydrate level that could contribute to designing more efficient cancer vaccines. An anti-cancer vaccine based on an unnatural antigen with an sp2-iminosugar fragment.![]()
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Affiliation(s)
- Iris A Bermejo
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química E-26006 Logroño Spain
| | - Claudio D Navo
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química E-26006 Logroño Spain .,CIC BioGUNE, Bizkaia Technology Park Building 800 48170 Derio Spain
| | - Jorge Castro-López
- Institute of Biocomputation and Physics of Complex Systems (BIFI), University of Zaragoza Zaragoza Spain
| | - Ana Guerreiro
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa Avenida Professor Egas Moniz 1649-028 Lisboa Portugal
| | - Ester Jiménez-Moreno
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química E-26006 Logroño Spain
| | | | - Fayna García-Martín
- Graduate School and Faculty of Advanced Life Science, Laboratory of Advanced Chemical Biology, Hokkaido University N21 W11 Sapporo 001-0021 Japan
| | - Hiroshi Hinou
- Graduate School and Faculty of Advanced Life Science, Laboratory of Advanced Chemical Biology, Hokkaido University N21 W11 Sapporo 001-0021 Japan
| | - Shin-Ichiro Nishimura
- Graduate School and Faculty of Advanced Life Science, Laboratory of Advanced Chemical Biology, Hokkaido University N21 W11 Sapporo 001-0021 Japan
| | - José M García Fernández
- Instituto de Investigaciones Químicas (IIQ), CSIC-Universidad de Sevilla E-41092 Sevilla Spain
| | - Carmen Ortiz Mellet
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla E-41012 Sevilla Spain
| | - Alberto Avenoza
- 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
| | - 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 UK
| | - Ramón Hurtado-Guerrero
- Institute of Biocomputation and Physics of Complex Systems (BIFI), University of Zaragoza Zaragoza Spain.,Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, School of Dentistry, University of Copenhagen Copenhagen Denmark.,Fundación ARAID Zaragoza Spain
| | - Jesús M Peregrina
- 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
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Fernández EMS, Navo CD, Martínez-Sáez N, Gonçalves-Pereira R, Somovilla VJ, Avenoza A, Busto JH, Bernardes GJL, Jiménez-Osés G, Corzana F, Fernández JMG, Mellet CO, Peregrina JM. Tn Antigen Mimics Based on sp2-Iminosugars with Affinity for an anti-MUC1 Antibody. Org Lett 2016; 18:3890-3. [DOI: 10.1021/acs.orglett.6b01899] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Claudio D. Navo
- Dept.
Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Nuria Martínez-Sáez
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Rita Gonçalves-Pereira
- Dept.
Química Orgánica, Facultad de Química, Universidad de Sevilla, E-41012 Sevilla, Spain
| | - Víctor J. Somovilla
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Alberto Avenoza
- Dept.
Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Jesús H. Busto
- Dept.
Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Gonçalo J. L. Bernardes
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
- Instituto
de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028, Lisboa, Portugal
| | - Gonzalo Jiménez-Osés
- Dept.
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), Zaragoza, Spain
| | - Francisco Corzana
- Dept.
Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - José M. García Fernández
- Instituto
de Investigaciones Químicas (IIQ), CSIC−Universidad de Sevilla, E-41092 Sevilla, Spain
| | - Carmen Ortiz Mellet
- Dept.
Química Orgánica, Facultad de Química, Universidad de Sevilla, E-41012 Sevilla, Spain
| | - Jesús M. Peregrina
- Dept.
Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
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Candela Lena JI, Sánchez Fernández EM, Ramani A, Birlirakis N, Barrero AF, Arseniyadis S. Mild Protocols for Generating Molecular Complexity: A Comparative Study of Hetero-Domino Reactions Based on the Oxidant and the Substitution Pattern. European J Org Chem 2005. [DOI: 10.1002/ejoc.200400549] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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