1
|
Kumar S, Khatri V, Mangla P, Chhatwal RJ, Parmar VS, Prasad AK. C-Glycopyranosyl aldehydes: emerging chiral synthons in organic synthesis. RSC Adv 2023; 13:19898-19954. [PMID: 37404320 PMCID: PMC10316784 DOI: 10.1039/d3ra02122j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/16/2023] [Indexed: 07/06/2023] Open
Abstract
Herein, we have summarized the vast array of synthetic processes that have been developed for the synthesis of C-glycopyranosyl aldehydes and diverse C-glycoconjugates derived from them by covering the literature reported from 1979 to 2023. Notwithstanding its challenging chemistry, C-glycosides are considered stable pharmacophores and are used as important bioactive molecules. The discussed synthetic methodologies to access C-glycopyranosyl aldehydes take advantage of seven key intermediates, viz. allene, thiazole, dithiane, cyanide, alkene, and nitromethane. Furthermore, the integration of complex C-glycoconjugates derived from varied C-glycopyranosyl aldehydes involves nucleophilic addition/substitution, reduction, condensation, oxidation, cyclo condensation, coupling, and Wittig reactions. In this review, we have categorized the synthesis of C-glycopyranosyl aldehydes and C-glycoconjugates on the basis of the methodology used for their synthesis and on types of C-glycoconjugates, respectively.
Collapse
Affiliation(s)
- Sandeep Kumar
- Bioorganic Laboratory, Department of Chemistry, University of Delhi Delhi India
| | - Vinod Khatri
- Bioorganic Laboratory, Department of Chemistry, University of Delhi Delhi India
- T. D. L. Govt College for Women Murthal-131027 Haryana India
| | - Priyanka Mangla
- Bioorganic Laboratory, Department of Chemistry, University of Delhi Delhi India
| | | | - Virinder S Parmar
- Bioorganic Laboratory, Department of Chemistry, University of Delhi Delhi India
- The City University of New York-Medgar Evers College, Department of Chemistry and Environmental Science USA
- Nanoscience Program, CUNY-Graduate Center and City College, Departments of Chemistry and Biochemistry USA
- Institute of Click Chemistry Research and Studies, Amity University Noida 201303 India
| | - Ashok K Prasad
- Bioorganic Laboratory, Department of Chemistry, University of Delhi Delhi India
| |
Collapse
|
2
|
Freitas R, Peixoto A, Ferreira E, Miranda A, Santos LL, Ferreira JA. Immunomodulatory glycomedicine: Introducing next generation cancer glycovaccines. Biotechnol Adv 2023; 65:108144. [PMID: 37028466 DOI: 10.1016/j.biotechadv.2023.108144] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 03/17/2023] [Accepted: 03/30/2023] [Indexed: 04/09/2023]
Abstract
Cancer remains a leading cause of death worldwide due to the lack of safer and more effective therapies. Cancer vaccines developed from neoantigens are an emerging strategy to promote protective and therapeutic anti-cancer immune responses. Advances in glycomics and glycoproteomics have unveiled several cancer-specific glycosignatures, holding tremendous potential to foster effective cancer glycovaccines. However, the immunosuppressive nature of tumours poses a major obstacle to vaccine-based immunotherapy. Chemical modification of tumour associated glycans, conjugation with immunogenic carriers and administration in combination with potent immune adjuvants constitute emerging strategies to address this bottleneck. Moreover, novel vaccine vehicles have been optimized to enhance immune responses against otherwise poorly immunogenic cancer epitopes. Nanovehicles have shown increased affinity for antigen presenting cells (APCs) in lymph nodes and tumours, while reducing treatment toxicity. Designs exploiting glycans recognized by APCs have further enhanced the delivery of antigenic payloads, improving glycovaccine's capacity to elicit innate and acquired immune responses. These solutions show potential to reduce tumour burden, while generating immunological memory. Building on this rationale, we provide a comprehensive overview on emerging cancer glycovaccines, emphasizing the potential of nanotechnology in this context. A roadmap towards clinical implementation is also delivered foreseeing advances in glycan-based immunomodulatory cancer medicine.
Collapse
Affiliation(s)
- Rui Freitas
- Experimental Pathology and Therapeutics Group, IPO Porto Research Center (CI-IPOP), RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute (IPO Porto), 4200-072 Porto, Portugal; Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal; Porto Comprehensive Cancer Center (P.ccc), 4200-072 Porto, Portugal; Abel Salazar Biomedical Sciences Institute - University of Porto (ICBAS), 4050-313 Porto, Portugal
| | - Andreia Peixoto
- Experimental Pathology and Therapeutics Group, IPO Porto Research Center (CI-IPOP), RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute (IPO Porto), 4200-072 Porto, Portugal; Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal; Porto Comprehensive Cancer Center (P.ccc), 4200-072 Porto, Portugal
| | - Eduardo Ferreira
- Experimental Pathology and Therapeutics Group, IPO Porto Research Center (CI-IPOP), RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute (IPO Porto), 4200-072 Porto, Portugal
| | - Andreia Miranda
- Experimental Pathology and Therapeutics Group, IPO Porto Research Center (CI-IPOP), RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute (IPO Porto), 4200-072 Porto, Portugal; Abel Salazar Biomedical Sciences Institute - University of Porto (ICBAS), 4050-313 Porto, Portugal
| | - Lúcio Lara Santos
- Experimental Pathology and Therapeutics Group, IPO Porto Research Center (CI-IPOP), RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute (IPO Porto), 4200-072 Porto, Portugal; Porto Comprehensive Cancer Center (P.ccc), 4200-072 Porto, Portugal; Abel Salazar Biomedical Sciences Institute - University of Porto (ICBAS), 4050-313 Porto, Portugal; Health School of University Fernando Pessoa, 4249-004 Porto, Portugal; GlycoMatters Biotech, 4500-162 Espinho, Portugal; Department of Surgical Oncology, Portuguese Oncology Institute (IPO Porto), 4200-072 Porto, Portugal
| | - José Alexandre Ferreira
- Experimental Pathology and Therapeutics Group, IPO Porto Research Center (CI-IPOP), RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute (IPO Porto), 4200-072 Porto, Portugal; Porto Comprehensive Cancer Center (P.ccc), 4200-072 Porto, Portugal; GlycoMatters Biotech, 4500-162 Espinho, Portugal.
| |
Collapse
|
3
|
Fallarini S, Papi F, Licciardi F, Natali F, Lombardi G, Maestrelli F, Nativi C. Niosomes as Biocompatible Scaffolds for the Multivalent Presentation of Tumor-Associated Antigens (TACAs) to the Immune System. Bioconjug Chem 2022; 34:181-192. [PMID: 36519843 PMCID: PMC9853506 DOI: 10.1021/acs.bioconjchem.2c00383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Fully synthetic tumor-associated carbohydrate antigen (TACA)-based vaccines are a promising strategy to treat cancer. To overcome the intrinsic low immunogenicity of TACAs, the choice of the antigens' analogues and multivalent presentation have been proved to be successful. Here, we present the preparation, characterization, and in vitro screening of niosomes displaying multiple copies of the mucin antigen TnThr (niosomes-7) or of TnThr mimetic 1 (niosomes-2). Unprecedentedly, structural differences, likely related to the carbohydrate portions, were observed for the two colloidal systems. Both niosomal systems are stable, nontoxic and endowed with promising immunogenic properties.
Collapse
Affiliation(s)
- Silvia Fallarini
- Department
of Pharmaceutical Sciences, University of
“Piemonte Orientale”, Novara 28100, Italy
| | - Francesco Papi
- Department
of Chemistry, University of Florence, Sesto Fiorentino, Florence 50019, Italy
| | - Federico Licciardi
- Department
of Chemistry, University of Florence, Sesto Fiorentino, Florence 50019, Italy
| | - Francesca Natali
- CNR-IOM
and INSIDE@ILL, c/o OGG,
71 avenue des Martyrs, 38042 Grenoble Cedex 9, France
| | - Grazia Lombardi
- Department
of Pharmaceutical Sciences, University of
“Piemonte Orientale”, Novara 28100, Italy
| | | | | |
Collapse
|
4
|
Mondal UK, Barchi JJ. Isolipoic acid-linked gold nanoparticles bearing the thomsen friedenreich tumor-associated carbohydrate antigen: Stability and in vitro studies. Front Chem 2022; 10:1002146. [PMID: 36300019 PMCID: PMC9588967 DOI: 10.3389/fchem.2022.1002146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 09/20/2022] [Indexed: 11/19/2022] Open
Abstract
We have previously prepared gold nanoparticles (AuNPs) bearing the Thomsen-Friedenreich antigen disaccharide (TFag), a pan-carcinoma, Tumor-Associated Carbohydrate Antigen (TACA), as tools for various assays and biological applications. Conjugation to AuNPs typically involves the use of thiols due to the affinity of sulfur for the gold surface of the nanoparticle. While a use of a single thiol-containing ligand bound to the gold surface is standard practice, several studies have shown that ligands bearing multiple thiols can enhance the strength of the conjugation in a nearly linear fashion. (R)-(+)-α-Lipoic acid (LA), a naturally occurring disulfide-containing organic acid that is used as a cofactor in many enzymatic reactions, has been used as a linker to conjugate various molecules to AuNPs through its branched di-thiol system to enhance nanoparticle stability. We sought to use a similar system to increase nanoparticle stability that was devoid of the chiral center in (R)-(+)-α-lipoic acid. Isolipoic acid, an isomer of LA, where the exocyclic pentanoic acid chain is shifted by one carbon on the dithiolane ring to produce an achiral acid, was thought to act similarly as LA without the risk of any contaminating (L)-(−) isomer. We synthesized AuNPs with ligands of both serine and threonine glycoamino acids bearing the TFag linked to isolipoic acid and examined their stability under various conditions. In addition, these particles were shown to bind to Galectin-3 and inhibit the interaction of Galectin-3 with a protein displaying copies of the TFag. These agents should prove useful in the design of potential antimetastatic therapeutics that would benefit from achiral linkers that are geometrically linear and achiral.
Collapse
|
5
|
Sorieul C, Papi F, Carboni F, Pecetta S, Phogat S, Adamo R. Recent advances and future perspectives on carbohydrate-based cancer vaccines and therapeutics. Pharmacol Ther 2022; 235:108158. [PMID: 35183590 DOI: 10.1016/j.pharmthera.2022.108158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 01/30/2022] [Accepted: 02/14/2022] [Indexed: 12/13/2022]
Abstract
Carbohydrates are abundantly expressed on the surface of both eukaryotic and prokaryotic cells, often as post translational modifications of proteins. Glycoproteins are recognized by the immune system and can trigger both innate and humoral responses. This feature has been harnessed to generate vaccines against polysaccharide-encapsulated bacteria such as Streptococcus pneumoniae, Hemophilus influenzae type b and Neisseria meningitidis. In cancer, glycosylation plays a pivotal role in malignancy development and progression. Since glycans are specifically expressed on the surface of tumor cells, they have been targeted for the discovery of anticancer preventive and therapeutic treatments, such as vaccines and monoclonal antibodies. Despite the various efforts made over the last years, resulting in a series of clinical studies, attempts of vaccination with carbohydrate-based candidates have proven unsuccessful, primarily due to the immune tolerance often associated with these glycans. New strategies are thus deployed to enhance carbohydrate-based cancer vaccines. Moreover, lessons learned from glycan immunobiology paved the way to the development of new monoclonal antibodies specifically designed to recognize cancer-bound carbohydrates and induce tumor cell killing. Herein we provide an overview of the immunological principles behind the immune response towards glycans and glycoconjugates and the approaches exploited at both preclinical and clinical level to target cancer-associated glycans for the development of vaccines and therapeutic monoclonal antibodies. We also discuss gaps and opportunities to successfully advance glycan-directed cancer therapies, which could provide patients with innovative and effective treatments.
Collapse
|
6
|
Asín A, García-Martín F, Busto JH, Avenoza A, Peregrina JM, Corzana F. Structure-based Design of Anti-cancer Vaccines: The Significance of Antigen Presentation to Boost the Immune Response. Curr Med Chem 2021; 29:1258-1270. [PMID: 34375180 DOI: 10.2174/0929867328666210810152917] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 11/22/2022]
Abstract
Immunotherapy, alone or in combination with other therapies, is widely used against cancer. Glycoprotein Mucin 1 (MUC1), which is overexpressed and aberrantly glycosylated in tumor cells, is one of the most promising candidates to engineer new cancer vaccines. In this context, the development of stable antigens that can elicit a robust immune response is mandatory. Here, we describe the design and in vivo biological evaluation of three vaccine candidates based on MUC1 glycopeptides that comprise unnatural elements in their structure. By placing the Tn antigen (GalNAcα-O-Ser/Thr) at the center of the design, the chemical modifications include changes to the peptide backbone, glycosidic linkage, and at the carbohydrate level. Significantly, the three vaccines elicit robust immune responses in mice and produce antibodies that can be recognized by several human cancer cells. In all cases, a link was stablished between the conformational changes induced by the new elements in the antigen presentation and the immune response induced in mice. According to our data, the development of effective MUC1-based vaccines should use surrogates that mimic the conformational space of aberrantly glycosylated MUC1 glycopeptides found in tumors.
Collapse
Affiliation(s)
- Alicia Asín
- Departamento de Química. Centro de Investigación en Síntesis Química. Universidad de La Rioja. 26006 Logroño, Spain
| | - Fayna García-Martín
- Departamento de Química. Centro de Investigación en Síntesis Química. Universidad de La Rioja. 26006 Logroño, Spain
| | - Jesús Hector Busto
- Departamento de Química. Centro de Investigación en Síntesis Química. Universidad de La Rioja. 26006 Logroño, Spain
| | - Alberto Avenoza
- Departamento de Química. Centro de Investigación en Síntesis Química. Universidad de La Rioja. 26006 Logroño, Spain
| | - Jesús Manuel Peregrina
- Departamento de Química. Centro de Investigación en Síntesis Química. Universidad de La Rioja. 26006 Logroño, Spain
| | - Francisco Corzana
- Departamento de Química. Centro de Investigación en Síntesis Química. Universidad de La Rioja. 26006 Logroño, Spain
| |
Collapse
|
7
|
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.
Collapse
Affiliation(s)
- Xuanjun Wu
- National Glycoengineering Research Center, Shandong University, Qingdao, Shandong 266237, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Kurfiřt M, Lucie ČŠ, Cuřínová P, Hamala V, Karban J. Development of α-Selective Glycosylation for the Synthesis of Deoxyfluorinated TN Antigen Analogues. J Org Chem 2021; 86:5073-5090. [DOI: 10.1021/acs.joc.0c03015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Martin Kurfiřt
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic
- University of Chemistry and Technology Prague, Technická 5, 16628 Praha 6, Czech Republic
| | - Červenková Št’astná Lucie
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic
| | - Petra Cuřínová
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic
| | - Vojtěch Hamala
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic
- University of Chemistry and Technology Prague, Technická 5, 16628 Praha 6, Czech Republic
| | - Jindřich Karban
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic
| |
Collapse
|
9
|
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] [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.![]()
Collapse
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
| |
Collapse
|
10
|
Kleski KA, Trabbic KR, Shi M, Bourgault JP, Andreana PR. Enhanced Immune Response Against the Thomsen-Friedenreich Tumor Antigen Using a Bivalent Entirely Carbohydrate Conjugate. Molecules 2020; 25:E1319. [PMID: 32183149 PMCID: PMC7144725 DOI: 10.3390/molecules25061319] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/11/2020] [Accepted: 03/12/2020] [Indexed: 12/23/2022] Open
Abstract
The Thomsen-Friedenreich (TF) antigen is a key target for the development of anticancer vaccines, and this ongoing challenge remains relevant due to the poor immunogenicity of the TF antigen. To overcome this challenge, we adopted a bivalent conjugate design which introduced both the TF antigen and the Thomsen-nouveau (Tn) antigen onto the immunologically relevant polysaccharide A1 (PS A1). The immunological results in C57BL/6 mice revealed that the bivalent, Tn-TF-PS A1 conjugate increased the immune response towards the TF antigen as compared to the monovalent TF-PS A1. This phenomenon was first observed with enzyme-linked immunosorbent assay (ELISA) where the bivalent conjugate generated high titers of IgG antibodies where the monovalent conjugate generated an exclusive IgM response. Fluorescence-activated cell sorting (FACS) analysis also revealed increased binding events to the tumor cell lines MCF-7 and OVCAR-5, which are consistent with the enhanced tumor cell lysis observed in a complement dependent cytotoxicity (CDC) assay. The cytokine profile generated by the bivalent construct revealed increased pro-inflammatory cytokines IL-17 and IFN-γ. This increase in cytokine concentration was matched with an increase in cytokine producing cells as observed by ELISpot. We hypothesized the mechanisms for this phenomenon to involve the macrophage galactose N-acetylgalactosamine specific lectin 2 (MGL2). This hypothesis was supported by using biotinylated probes and recombinant MGL2 to measure carbohydrate-protein interactions.
Collapse
Affiliation(s)
| | | | | | | | - Peter R. Andreana
- 2801 West Bancroft Street, Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, OH 43606, USA; (K.A.K.); (K.R.T.); (M.S.); (J.-P.B.)
| |
Collapse
|
11
|
Synthesis of chemical tools to improve water solubility and promote the delivery of salinomycin to cancer cells. Exp Ther Med 2020; 19:1835-1843. [PMID: 32104239 PMCID: PMC7027072 DOI: 10.3892/etm.2019.8368] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 10/25/2019] [Indexed: 12/12/2022] Open
Abstract
Chemotherapy and radiation are unable to eliminate all cancer cells, particularly apoptosis-resistant cancer cells, despite their ability to kill cancer cluster cells. Thus, it is important to identify methods that eliminate all cancer cells in order to prevent relapse. Salinomycin has the ability to control and eradicate different types of cancer, including breast cancer; however, its molecular mechanism remains unclear. The main difficulty in testing salinomycin activity and understanding the governing mechanisms is its low solubility in water (17 mg/l), which can hinder convenient delivery of salinomycin to the protein receptor at the cell surface of stem cells. In the present study, salinomycin was conjugated to the trans-activator of transcription-protein in order to facilitate its delivery to the cancer cells. Conjugated salinomycin demonstrated improved solubility in both in vitro. Salinomycin was tested in breast cancer cells (MCF7 and JIMT-1) by the cleavage of the linker through photolysis at l≥365 nm during in vitro analysis, in the present study.
Collapse
|
12
|
Singh B, Kumar S, Maity J, Roy I, Prasad AK. Bamford-Stevens reaction assisted synthesis of styrene C-glycosides. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1606921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Balram Singh
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Sandeep Kumar
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Jyotirmoy Maity
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Indrajit Roy
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Ashok K. Prasad
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| |
Collapse
|
13
|
The Synthesis and Biological Characterization of Acetal-Free Mimics of the Tumor-Associated Carbohydrate Antigens. Adv Carbohydr Chem Biochem 2017; 74:137-237. [PMID: 29173726 DOI: 10.1016/bs.accb.2017.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Carcinomas express unique carbohydrates, known as tumor-associated carbohydrate antigens (TACAs), on their surface. These are potential targets for anticancer vaccines; however, to date, no such vaccine has reached the clinic. One factor that may complicate the success of this effort is the lability of the glycosidic bond. Acetal-free carbohydrates are analogues that lack the glycosidic linkage by replacing either the endo or exo oxygen with a methylene. This chapter summarizes the seminal syntheses of the mucin TACAs, provides an overview of common techniques for the synthesis of carbasugars and C-glycosides, reviews the syntheses published to date of acetal-free TACA analogues, and provides an overview of their observed biological activity. We conclude by offering a summation of the challenges remaining to the field biologically and the potential that acetal-free TACAs have of answering several basic questions in carbohydrate immunology.
Collapse
|
14
|
Saliba RC, Pohl NL. Designing sugar mimetics: non-natural pyranosides as innovative chemical tools. Curr Opin Chem Biol 2016; 34:127-134. [PMID: 27621102 DOI: 10.1016/j.cbpa.2016.08.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 08/25/2016] [Accepted: 08/29/2016] [Indexed: 12/15/2022]
Abstract
The importance of oligosaccharides in myriad biological processes is becoming increasingly clear. However, these carbohydrate-mediated processes are often challenging to dissect due to the often poor affinity, stability and selectivity of the oligosaccharides involved. To circumvent these issues, non-natural carbohydrates-carbohydrate mimics-are being designed as innovative tools to modify biomolecules of interest or to understand biological pathways using fluorescence microscopy, X-ray or nuclear magnetic resonance spectroscopy (NMR). This review focuses on key examples of recently developed non-natural sugars to answer specific biological needs.
Collapse
Affiliation(s)
- Regis C Saliba
- Department of Chemistry, Indiana University, Bloomington, IN 47401, United States.
| | - Nicola Lb Pohl
- Department of Chemistry, Indiana University, Bloomington, IN 47401, United States.
| |
Collapse
|
15
|
Rojas-Ocáriz V, Compañón I, Aydillo C, Castro-Loṕez J, Jiménez-Barbero J, Hurtado-Guerrero R, Avenoza A, Zurbano MM, Peregrina JM, Busto JH, Corzana F. Design of α-S-Neoglycopeptides Derived from MUC1 with a Flexible and Solvent-Exposed Sugar Moiety. J Org Chem 2016; 81:5929-41. [PMID: 27305427 DOI: 10.1021/acs.joc.6b00833] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The use of vaccines based on MUC1 glycopeptides is a promising approach to treat cancer. We present herein several sulfa-Tn antigens incorporated in MUC1 sequences that possess a variable linker between the carbohydrate (GalNAc) and the peptide backbone. The main conformations of these molecules in solution have been evaluated by combining NMR experiments and molecular dynamics simulations. The linker plays a key role in the modulation of the conformation of these compounds at different levels, blocking a direct contact between the sugar moiety and the backbone, promoting a helix-like conformation for the glycosylated residue and favoring the proper presentation of the sugar unit for molecular recognition events. The feasibility of these novel compounds as mimics of MUC1 antigens has been validated by the X-ray diffraction structure of one of these unnatural derivatives complexed to an anti-MUC1 monoclonal antibody. These features, together with potential lack of immune suppression, render these unnatural glycopeptides promising candidates for designing alternative therapeutic vaccines against cancer.
Collapse
Affiliation(s)
- Víctor Rojas-Ocáriz
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - Ismael Compañón
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - Carlos Aydillo
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - Jorge Castro-Loṕez
- BIFI, University of Zaragoza, BIFI-IQFR (CSIC) Joint Unit , Mariano Esquillor s/n, Campus Rio Ebro, Edificio I+D, Zaragoza, Spain
| | - Jesús Jiménez-Barbero
- Structural Biology Unit, CIC bioGUNE , Parque Tecnológico de Bizkaia Building 801 A, 48160 Derio, Spain.,IKERBASQUE, Basque Foundation for Science , 48011 Bilbao, Spain.,Department of Chemical and Physical Biology, Centro de Investigaciones Biológicas , CSIC Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Ramón Hurtado-Guerrero
- BIFI, University of Zaragoza, BIFI-IQFR (CSIC) Joint Unit , Mariano Esquillor s/n, Campus Rio Ebro, Edificio I+D, Zaragoza, Spain.,Fundación ARAID , 50018 Zaragoza, Spain
| | - Alberto Avenoza
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - María M Zurbano
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - Jesús M Peregrina
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - Jesús H Busto
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - Francisco Corzana
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| |
Collapse
|
16
|
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
| |
Collapse
|
17
|
Sun S, Zheng XJ, Huo CX, Song C, Li Q, Ye XS. Synthesis and Evaluation of Glycoconjugates ComprisingN-Acyl-Modified Thomsen-Friedenreich Antigens as Anticancer Vaccines. ChemMedChem 2016; 11:1090-6. [DOI: 10.1002/cmdc.201600094] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 03/17/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Shuang Sun
- State Key Laboratory of Natural and Biomimetic Drugs; School of Pharmaceutical Sciences; Peking University; Xue Yuan Road No. 38 Beijing 100191 China
| | - Xiu-Jing Zheng
- State Key Laboratory of Natural and Biomimetic Drugs; School of Pharmaceutical Sciences; Peking University; Xue Yuan Road No. 38 Beijing 100191 China
| | - Chang-Xin Huo
- State Key Laboratory of Natural and Biomimetic Drugs; School of Pharmaceutical Sciences; Peking University; Xue Yuan Road No. 38 Beijing 100191 China
| | - Chengcheng Song
- State Key Laboratory of Natural and Biomimetic Drugs; School of Pharmaceutical Sciences; Peking University; Xue Yuan Road No. 38 Beijing 100191 China
| | - Qin Li
- State Key Laboratory of Natural and Biomimetic Drugs; School of Pharmaceutical Sciences; Peking University; Xue Yuan Road No. 38 Beijing 100191 China
| | - Xin-Shan Ye
- State Key Laboratory of Natural and Biomimetic Drugs; School of Pharmaceutical Sciences; Peking University; Xue Yuan Road No. 38 Beijing 100191 China
| |
Collapse
|
18
|
Martínez-Sáez N, Supekar NT, Wolfert MA, Bermejo IA, Hurtado-Guerrero R, Asensio JL, Jiménez-Barbero J, Busto JH, Avenoza A, Boons GJ, Peregrina JM, Corzana F. Mucin architecture behind the immune response: design, evaluation and conformational analysis of an antitumor vaccine derived from an unnatural MUC1 fragment. Chem Sci 2016; 7:2294-2301. [PMID: 29910919 PMCID: PMC5977504 DOI: 10.1039/c5sc04039f] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 12/06/2015] [Indexed: 02/01/2023] Open
Abstract
A tripartite cancer vaccine candidate, containing a quaternary amino acid (α-methylserine) in the most immunogenic domain of MUC1, has been synthesized and examined for antigenic properties in transgenic mice. The vaccine which is glycosylated with GalNAc at the unnatural amino acid, was capable of eliciting potent antibody responses recognizing both glycosylated and unglycosylated tumour-associated MUC1 peptides and native MUC1 antigen present on cancer cells. The peptide backbone of the novel vaccine presents the bioactive conformation in solution and is more resistant to enzymatic degradation than the natural counter part. In spite of these features, the immune response elicited by the unnatural vaccine was not improved compared to a vaccine candidate containing natural threonine. These observations were rationalized by conformational studies, indicating that the presentation and dynamics of the sugar moiety displayed by the MUC1 derivative play a critical role in immune recognition. It is clear that engineered MUC1-based vaccines bearing unnatural amino acids have to be able to emulate the conformational properties of the glycosidic linkage between the GalNAc and the threonine residues. The results described here will be helpful to the rational design of efficacious cancer vaccines.
Collapse
Affiliation(s)
- Nuria Martínez-Sáez
- Departamento de Química , Universidad de La Rioja , Centro de Investigación en Síntesis Química , Madre de Dios 53 , 26006 Logroño , Spain . ;
| | - Nitin T Supekar
- Complex Carbohydrate Research Center , University of Georgia , 315 Riverbend Road , Athens , Georgia 30602 , USA .
| | - Margreet A Wolfert
- Complex Carbohydrate Research Center , University of Georgia , 315 Riverbend Road , Athens , Georgia 30602 , USA .
| | - Iris A Bermejo
- Departamento de Química , Universidad de La Rioja , Centro de Investigación en Síntesis Química , Madre de Dios 53 , 26006 Logroño , Spain . ;
| | - Ramón Hurtado-Guerrero
- BIFI , University of Zaragoza , BIFI-IQFR (CSIC) Joint Unit , Mariano Esquillor s/n , Campus Rio Ebro , Edificio I+D , Zaragoza , Spain
- Fundación ARAID , 50018 , Zaragoza , Spain
| | - Juan L Asensio
- Instituto de Química Orgánica General , IQOG-CSIC , Juan de la Cierva 3 , 28006 Madrid , Spain
| | - Jesús Jiménez-Barbero
- Structural Biology Unit , CIC bioGUNE , Parque Tecnológico de Bizkaia Building 801A , 48160 Derio , Spain
- IKERBASQUE , Basque Foundation for Science , 48011 Bilbao , Spain
- Department of Chemical and Physical Biology , Centro de Investigaciones Biológicas , CSIC , Ramiro de Maeztu 9 , 28040 Madrid , Spain
| | - Jesús H Busto
- Departamento de Química , Universidad de La Rioja , Centro de Investigación en Síntesis Química , Madre de Dios 53 , 26006 Logroño , Spain . ;
| | - Alberto Avenoza
- Departamento de Química , Universidad de La Rioja , Centro de Investigación en Síntesis Química , Madre de Dios 53 , 26006 Logroño , Spain . ;
| | - Geert-Jan Boons
- Complex Carbohydrate Research Center , University of Georgia , 315 Riverbend Road , Athens , Georgia 30602 , USA .
| | - Jesús M Peregrina
- Departamento de Química , Universidad de La Rioja , Centro de Investigación en Síntesis Química , Madre de Dios 53 , 26006 Logroño , Spain . ;
| | - Francisco Corzana
- Departamento de Química , Universidad de La Rioja , Centro de Investigación en Síntesis Química , Madre de Dios 53 , 26006 Logroño , Spain . ;
| |
Collapse
|
19
|
Khatri V, Kumar A, Singh B, Malhotra S, Prasad AK. Synthesis of β-C-Glycopyranosyl Aldehydes and 2,6-Anhydro-heptitols. J Org Chem 2015; 80:11169-74. [DOI: 10.1021/acs.joc.5b01933] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vinod Khatri
- Bioorganic Laboratory, Department
of Chemistry, University of Delhi, Delhi 110 007, India
| | - Amit Kumar
- Bioorganic Laboratory, Department
of Chemistry, University of Delhi, Delhi 110 007, India
| | - Balram Singh
- Bioorganic Laboratory, Department
of Chemistry, University of Delhi, Delhi 110 007, India
| | - Shashwat Malhotra
- Bioorganic Laboratory, Department
of Chemistry, University of Delhi, Delhi 110 007, India
| | - Ashok K. Prasad
- Bioorganic Laboratory, Department
of Chemistry, University of Delhi, Delhi 110 007, India
| |
Collapse
|
20
|
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.
Collapse
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
| |
Collapse
|
21
|
Richichi B, Thomas B, Fiore M, Bosco R, Qureshi H, Nativi C, Renaudet O, BenMohamed L. A Cancer Therapeutic Vaccine based on Clustered Tn-Antigen Mimetics Induces Strong Antibody-Mediated Protective Immunity. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406897] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
22
|
Richichi B, Thomas B, Fiore M, Bosco R, Qureshi H, Nativi C, Renaudet O, BenMohamed L. A cancer therapeutic vaccine based on clustered Tn-antigen mimetics induces strong antibody-mediated protective immunity. Angew Chem Int Ed Engl 2014; 53:11917-20. [PMID: 25168881 DOI: 10.1002/anie.201406897] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Indexed: 01/09/2023]
Abstract
Tumor-associated carbohydrate antigens (TACAs) are key components of cancer vaccines. A variety of vaccines based on native TACAs such as α-Tn have shown immunogenicity and protection in preclinical animal studies, however, their weak immunogenicity, low in vivo instability, and poor bioavailability, have discouraged their further evaluations in clinical studies. A new improved vaccine prototype is reported. It is composed of four clustered Tn-antigen mimetics and a immunogenic peptide epitope that are conjugated to a cyclopeptide carrier. The immunization of mice with this vaccine 1) was safe, 2) induced a strong and long-lasting Tn-specific response with IgM/IgG antibodies able to recognize native carbohydrate antigens; 3) produced high titers of IgG1, IgG2a, and IgG3 antibodies; and 4) produced a significant antibody-dependent regression of tumors and conferred protection. Altogether, these findings pave the way for the clinical development of safe and effective therapeutic vaccines against Tn-expressing cancers.
Collapse
Affiliation(s)
- Barbara Richichi
- Department of Chemistry "Ugo Schiff", University of Florence via della Lastruccia, 13, 50019 Sesto F.no (FI) (Italy)
| | | | | | | | | | | | | | | |
Collapse
|
23
|
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.
Collapse
Affiliation(s)
- Carlos Aydillo
- Departamento de Química, Universidad de La Rioja , Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | | | | | | | | | | | | |
Collapse
|
24
|
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
| |
Collapse
|