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Shou K, Zhang Y, Ji Y, Liu B, Zhou Q, Tan Q, Li F, Wang X, Lu G, Xiao G. Highly stereoselective α-glycosylation with GalN 3 donors enabled collective synthesis of mucin-related tumor associated carbohydrate antigens. Chem Sci 2024; 15:6552-6561. [PMID: 38699257 PMCID: PMC11062124 DOI: 10.1039/d4sc01348d] [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: 02/28/2024] [Accepted: 04/01/2024] [Indexed: 05/05/2024] Open
Abstract
Mucin-related tumor-associated carbohydrate antigens (TACAs) are important and interesting targets for cancer vaccine therapy. However, efficient access to a library of mucin-related TACAs remains a challenging task. One of the key issues is the challenging construction of α-GalNAc linkages. Here, we report highly stereoselective α-glycosylation with GalN3N-phenyl trifluoroacetimidate donors, which features excellent yields, outstanding stereoselectivities, broad substrate scope and mild reaction conditions. This method is successfully applied to highly stereoselective synthesis of GalN3-α-O-Ser, which served as the common intermediate for collective synthesis of a wide range of TACAs including TN antigen, STN antigen, 2,6 STF antigen, 2,3 STF antigen, glycophorin and cores 1-8 mucin-type O-glycans. In particular, the rationale for this highly stereoselective α-glycosylation is provided for the first time using DFT calculations and mechanistic studies, highlighting the crucial roles of reagent combinations (TMSI and Ph3PO) and the H-bonding directing effect of the N3 group.
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Affiliation(s)
- Kunxiu Shou
- State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences 132 Lanhei Road Kunming 650201 China
| | - Yunqin Zhang
- State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences 132 Lanhei Road Kunming 650201 China
| | - Yujie Ji
- School of Chemistry and Chemical Engineering, Shandong University Jinan Shandong 250100 China
| | - Bin Liu
- State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences 132 Lanhei Road Kunming 650201 China
| | - Qingli Zhou
- State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences 132 Lanhei Road Kunming 650201 China
| | - Qiang Tan
- State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences 132 Lanhei Road Kunming 650201 China
| | - Fuying Li
- Department of Chemistry, Kunming University 2 Puxing Road Kunming 650214 China
| | - Xiufang Wang
- Department of Chemistry, Kunming University 2 Puxing Road Kunming 650214 China
| | - Gang Lu
- School of Chemistry and Chemical Engineering, Shandong University Jinan Shandong 250100 China
| | - Guozhi Xiao
- State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences 132 Lanhei Road Kunming 650201 China
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Rashidijahanabad Z, Ramadan S, O'Brien NA, Nakisa A, Lang S, Crawford H, Gildersleeve JC, Huang X. Stereoselective Synthesis of Sialyl Lewis a Antigen and the Effective Anticancer Activity of Its Bacteriophage Qβ Conjugate as an Anticancer Vaccine. Angew Chem Int Ed Engl 2023; 62:e202309744. [PMID: 37781858 PMCID: PMC10842512 DOI: 10.1002/anie.202309744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 09/23/2023] [Accepted: 09/27/2023] [Indexed: 10/03/2023]
Abstract
Sialyl Lewisa (sLea ), also known as cancer antigen 19-9 (CA19-9), is a tumor-associated carbohydrate antigen. The overexpression of sLea on the surface of a variety of cancer cells makes it an attractive target for anticancer immunotherapy. However, sLea -based anticancer vaccines have been under-explored. To develop a new vaccine, efficient stereoselective synthesis of sLea with an amine-bearing linker was achieved, which was subsequently conjugated with a powerful carrier bacteriophage, Qβ. Mouse immunization with the Qβ-sLea conjugate generated strong and long-lasting anti-sLea IgG antibody responses, which were superior to those induced by the corresponding conjugate of sLea with the benchmark carrier keyhole limpet hemocyanin. Antibodies elicited by Qβ-sLea were highly selective toward the sLea structure, could bind strongly with sLea -expressing cancer cells and human pancreatic cancer tissues, and kill tumor cells through complement-mediated cytotoxicity. Furthermore, vaccination with Qβ-sLea significantly reduced tumor development in a metastatic cancer model in mice, demonstrating tumor protection for the first time by a sLea -based vaccine, thus highlighting the significant potential of sLea as a promising cancer antigen.
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Affiliation(s)
- Zahra Rashidijahanabad
- Department of Chemistry, Michigan State University, 48824, East Lansing, Michigan, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, 48824, East Lansing, Michigan, USA
| | - Sherif Ramadan
- Department of Chemistry, Michigan State University, 48824, East Lansing, Michigan, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, 48824, East Lansing, Michigan, USA
- Chemistry Department, Faculty of Science, Benha University, 13518, Benha, Qaliobiya, Egypt
| | - Nicholas A O'Brien
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland, 21702, USA
| | - Athar Nakisa
- Department of Chemistry, Michigan State University, 48824, East Lansing, Michigan, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, 48824, East Lansing, Michigan, USA
| | - Shuyao Lang
- Department of Chemistry, Michigan State University, 48824, East Lansing, Michigan, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, 48824, East Lansing, Michigan, USA
| | - Howard Crawford
- Department of Surgery, Henry Ford Health System, Detroit, Michigan, 48202, USA
| | - Jeffrey C Gildersleeve
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland, 21702, USA
| | - Xuefei Huang
- Department of Chemistry, Michigan State University, 48824, East Lansing, Michigan, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, 48824, East Lansing, Michigan, USA
- Department of Biomedical Engineering, Michigan State University, 48824, East Lansing, Michigan, USA
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3
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Pordel S, Khorrami M, Saadatpour F, Rezaee D, Cho WC, Jahani S, Aghaei-Zarch SM, Hashemi E, Najafi S. The role of microRNA-185 in the pathogenesis of human diseases: A focus on cancer. Pathol Res Pract 2023; 249:154729. [PMID: 37639952 DOI: 10.1016/j.prp.2023.154729] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/29/2023] [Indexed: 08/31/2023]
Abstract
MicroRNAs (miRNAs) are a widely-studied class of non-coding RNAs characterized by their short length (18-25 nucleotides). The precise functions of miRNAs are not well-elucidated; however, an increasing number of studies suggest their involvement in various physiologic processes and deregulation in pathologic conditions. miRNA-185 (miR-185) is among the mostly-studied miRNAs in human diseases, which is found to play putative roles in conditions like metabolic disorders, asthma, frailty, schizophrenia, and hepatitis. Notably, many cancer studies report the downregulation of miR-185 in cell lines, tumor tissues, and plasma specimens of patients, while it demonstrates a suppressing role on the malignant properties of cancer cells in vitro and in vivo. Accordingly, miR-185 can be considered a tumor suppressor miRNA in human malignancies, while a few studies also report inconsistent findings. Being suggested as a prognostic/diagnostic biomarker, mi-185 is also found to offer clinical potentials, particularly for early diagnosis and prediction of the prognosis of cancer patients. In this review, we have outlined the studies that have evaluated the functions and clinical significance of miR-185 in different human diseases with a particular focus on cancer.
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Affiliation(s)
- Safoora Pordel
- Department of Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Immunology and Allergy, The Persian Gulf Tropical Medicine Research Center, The Persian Gulf Biomedical Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Motahare Khorrami
- Immunology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Saadatpour
- Pharmaceutical Biotechnology Lab, Department of Microbiology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran
| | - Delsuz Rezaee
- School of Allied Medical Sciences, Ilam University of Medical Sciences, Ilam, Iran
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, 30 Gascoigne Road, Hong Kong, China
| | | | - Seyed Mohsen Aghaei-Zarch
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Elham Hashemi
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Sajad Najafi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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4
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Streety X, Obike JC, Townsend SD. A Hitchhiker's Guide to Problem Selection in Carbohydrate Synthesis. ACS CENTRAL SCIENCE 2023; 9:1285-1296. [PMID: 37521800 PMCID: PMC10375882 DOI: 10.1021/acscentsci.3c00507] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Indexed: 08/01/2023]
Abstract
Oligosaccharides are ubiquitous in molecular biology and are used for functions ranging from governing protein folding to intercellular communication. Perhaps paradoxically, the exact role of the glycan in most of these settings is not well understood. One reason for this contradiction concerns the fact that carbohydrates often appear in heterogeneous form in nature. These mixtures complicate the isolation of pure material and characterization of structure-activity relationships. As a result, a major bottleneck in glycoscience research is the synthesis and modification of pure materials. While synthetic and chemoenzymatic methods have enabled access to homogeneous tool compounds, a central problem, particularly for newer synthetic chemists, is the matter of problem selection. This outlook aims to provide an entry level overview of fundamental principles in carbohydrate chemistry with an eye toward enabling solutions to frontier challenges.
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5
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Yang J, Xie D, Ma X. Recent Advances in Chemical Synthesis of Amino Sugars. Molecules 2023; 28:4724. [PMID: 37375279 DOI: 10.3390/molecules28124724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Amino sugars are a kind of carbohydrates with one or more hydroxyl groups replaced by an amino group. They play crucial roles in a broad range of biological activities. Over the past few decades, there have been continuing efforts on the stereoselective glycosylation of amino sugars. However, the introduction of glycoside bearing basic nitrogen is challenging using conventional Lewis acid-promoted pathways owing to competitive coordination of the amine to the Lewis acid promoter. Additionally, diastereomeric mixtures of O-glycoside are often produced if aminoglycoside lack a C2 substituent. This review focuses on the updated overview of the way to stereoselective synthesis of 1,2-cis-aminoglycoside. The scope, mechanism, and the applications in the synthesis of complex glycoconjugates for the representative methodologies were also included.
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Affiliation(s)
- Jian Yang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Demeng Xie
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xiaofeng Ma
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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6
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Yue S, Wang X, Ge W, Li J, Yang C, Zhou Z, Zhang P, Yang X, Xiao W, Yang S. Deciphering Protein O-GalNAcylation: Method Development and Disease Implication. ACS OMEGA 2023; 8:19223-19236. [PMID: 37305274 PMCID: PMC10249083 DOI: 10.1021/acsomega.3c01653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 04/20/2023] [Indexed: 06/13/2023]
Abstract
Mucin-type O-glycosylation is an important protein post-translational modification that is abundantly expressed on cell surface proteins. Protein O-glycosylation plays a variety of roles in cellular biological functions including protein structure and signal transduction to the immune response. Cell surface mucins are highly O-glycosylated and are the main substance of the mucosal barrier that protects the gastrointestinal or respiratory tract from infection by pathogens or microorganisms. Dysregulation of mucin O-glycosylation may impair mucosal protection against pathogens that can invade cells to trigger infection or immune evasion. Truncated O-glycosylation, also known as Tn antigen or O-GalNAcylation, is highly upregulated in diseases such cancer, autoimmune disorders, neurodegenerative diseases, and IgA nephropathy. Characterization of O-GalNAcylation helps decipher the role of Tn antigen in physiopathology and therapy. However, the analysis of O-glycosylation, specifically the Tn antigen, remains challenging due to the lack of reliable enrichment and identification assays compared to N-glycosylation. Here, we summarize recent advances in analytical methods for O-GalNAcylation enrichment and identification and highlight the biological role of the Tn antigen in various diseases and the clinical implications of identifying aberrant O-GalNAcylation.
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Affiliation(s)
- Shuang Yue
- Center
for Clinical Mass Spectrometry, Department of Pharmaceutical Analysis,
College of Pharmaceutical Sciences, Soochow
University, Suzhou, Jiangsu 215123, China
- Department
of Endocrinology, The Second Affiliated
Hospital of Soochow University, Suzhou, Jiangsu 215004, China
| | - Xiaotong Wang
- Department
of Hepatology and Gastroenterology, The
Affiliated Infectious Hospital of Soochow University, Suzhou, Jiangsu 215004, China
- Department
of Endocrinology, The Second Affiliated
Hospital of Soochow University, Suzhou, Jiangsu 215004, China
| | - Wei Ge
- Center
for Clinical Mass Spectrometry, Department of Pharmaceutical Analysis,
College of Pharmaceutical Sciences, Soochow
University, Suzhou, Jiangsu 215123, China
| | - Jiajia Li
- Center
for Clinical Mass Spectrometry, Department of Pharmaceutical Analysis,
College of Pharmaceutical Sciences, Soochow
University, Suzhou, Jiangsu 215123, China
| | - Chuanlai Yang
- Scientific
Research Department, The Second Affiliated
Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Zeyang Zhou
- Department
of General Surgery, The Second Affiliated
Hospital of Soochow University, Suzhou, Jiangsu 215004, China
| | - Peng Zhang
- Department
of Orthopedics, The Second Affiliated Hospital
of Soochow University, Suzhou, Jiangsu 215004, China
| | - Xiaodong Yang
- Department
of General Surgery, The Second Affiliated
Hospital of Soochow University, Suzhou, Jiangsu 215004, China
| | - Wenjin Xiao
- Department
of Endocrinology, The Second Affiliated
Hospital of Soochow University, Suzhou, Jiangsu 215004, China
| | - Shuang Yang
- Center
for Clinical Mass Spectrometry, Department of Pharmaceutical Analysis,
College of Pharmaceutical Sciences, Soochow
University, Suzhou, Jiangsu 215123, China
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7
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Chemical and Synthetic Biology Approaches for Cancer Vaccine Development. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27206933. [PMID: 36296526 PMCID: PMC9611187 DOI: 10.3390/molecules27206933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/21/2022] [Accepted: 10/14/2022] [Indexed: 11/23/2022]
Abstract
Cancer vaccines have been considered promising therapeutic strategies and are often constructed from whole cells, attenuated pathogens, carbohydrates, peptides, nucleic acids, etc. However, the use of whole organisms or pathogens can elicit unwanted immune responses arising from unforeseen reactions to the vaccine components. On the other hand, synthetic vaccines, which contain antigens that are conjugated, often with carrier proteins, can overcome these issues. Therefore, in this review we have highlighted the synthetic approaches and discussed several bioconjugation strategies for developing antigen-based cancer vaccines. In addition, the major synthetic biology approaches that were used to develop genetically modified cancer vaccines and their progress in clinical research are summarized here. Furthermore, to boost the immune responses of any vaccines, the addition of suitable adjuvants and a proper delivery system are essential. Hence, this review also mentions the synthesis of adjuvants and utilization of biomaterial scaffolds, which may facilitate the design of future cancer vaccines.
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8
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Mengxin X, Lambu MR, Judeh ZMA. Selective One-Pot Cascade Synthesis of N-Substituted Highly Functionalized Pyrroles from Unprotected Sugars, Primary Amines, and Oxoacetonitriles. J Org Chem 2022; 87:12115-12131. [PMID: 36044395 DOI: 10.1021/acs.joc.2c01270] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A one-pot, three-component cascade reaction between unprotected sugars, primary amines, and 3-oxoacetonitriles gave N-substituted 2,3,5-functionalized pyrroles or N-substituted 2,3,4-functionalized pyrroles in excellent yields and selectivities. The selectivity of the reaction was achieved by simple control of the sequence of substrate addition. The reaction showed a wide substrate scope, and various types of sugars, primary amines, and oxoacetonitriles reacted smoothly. The work demonstrates a highly desired simple reaction for embedding nitrogen into sugars to produce valuable N-heterocyclic compounds that are amenable to further modifications to natural products and drug intermediates.
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Affiliation(s)
- Xia Mengxin
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, N1.2-B1-14, Singapore 637459, Singapore
| | - Mallikharjuna Rao Lambu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, N1.2-B1-14, Singapore 637459, Singapore
| | - Zaher M A Judeh
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, N1.2-B1-14, Singapore 637459, Singapore
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9
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Sustainable functionalization and modification of materials via multicomponent reactions in water. Front Chem Sci Eng 2022. [DOI: 10.1007/s11705-022-2150-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Gratal P, Arias-Pérez MS, Gude L. 1H-imidazo[4,5-f][1,10]phenanthroline carbohydrate conjugates: synthesis, DNA interactions and cytotoxic activity. Bioorg Chem 2022; 125:105851. [DOI: 10.1016/j.bioorg.2022.105851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/05/2022] [Accepted: 04/29/2022] [Indexed: 11/02/2022]
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Liu Y, Li M, Zhu H, Jing Z, Yin X, Wang K, Hong Z, Zhao W. Alum colloid encapsulated inside β-glucan particles enhance humoral and CTL immune responses of MUC1 vaccine. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.01.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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12
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Zhao Y, Li S, Lv J, Liu Y, Chen Y, Liu Y, Chen X, Li J, Qin X, Wang X, Shi J, Shi Y, Xiang R. Generation of triacyl lipopeptide-modified glycoproteins by metabolic glycoengineering as the neoantigen to boost anti-tumor immune response. Theranostics 2021; 11:7425-7438. [PMID: 34158858 PMCID: PMC8210591 DOI: 10.7150/thno.60211] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 05/06/2021] [Indexed: 12/20/2022] Open
Abstract
The lack of tumor specific antigens (TSA) and the immune tolerance are two major obstacles for the immunotherapy of cancer. Current immune checkpoint inhibitors (ICIs) show clinical responses in only limited subsets of cancer patients, which, to some extent, depends on the mutation load of tumor cells that may generate neoantigens. Here, we aimed to generate a neoantigen MDP to exhibit stronger anti-tumor efficacy. Methods: In this study, we utilized chemically modified sialic acid precursor tetra acetyl-N-azidoacetyl-mannosamine (AC4ManNAZ) to engineer the glycoproteins on the membranes of tumor cells for the covalent ligation of hapten adjuvant Pam3CSK4 in vivo, which eventually generated a neoantigen, i.e., ManNAZ-DBCO-Pam3CSK4 (MDP), on tumor cells. The high labeling efficiency, relatively specific biodistribution in tumor tissues and the anti-tumor efficacy were confirmed in the syngeneic murine models of the breast cancer and the lung cancer. Results: The generation of MDP neoantigen in tumor-bearing mice significantly evoked both the humoral and the T-cell-dependent antitumor immune responses, resulting in a strong inhibition on the growth of the breast cancer and the lung cancer allografts and significantly prolonged survival of tumor-bearing mice. Interestingly, MDP neoantigen was able to dramatically increase the sensitivity of cancer cells to ICIs and greatly enhance the anti-tumor efficacy in the murine models of both breast cancer and the lung cancer, which showed no or low responses to the immunotherapy with anti-PD1 antibody alone. Conclusions: We developed a simple metabolic glycoengineering method to artificially generate neoantigens on tumor cells to enhance tumor cell immunogenicity, which is able to significantly improve the response and the clinical outcome of ICIs.
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Roman BI. The Expanding Role of Chemistry in Optimizing Proteins for Human Health Applications. J Med Chem 2021; 64:7179-7188. [PMID: 34014084 DOI: 10.1021/acs.jmedchem.1c00294] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Over the past decades, therapeutics based on biological macromolecules and cells have successfully entered the clinical arena and progressively occupied an increasing share of what once was almost exclusively small molecule territory. This perspective explores the opportunities for chemists at the interface between biologics and small molecule-based products. It provides concrete examples by zooming in on the area of post-translational protein modification. The conclusion is that, rather than diminishing the relevance of chemistry in the pharmaceutical enterprise, the advent of the biologics has provided an additional playing field for synthetic and medicinal chemists, where they can contribute to the efficacy and scope of applicability of biological entities in a collaborative effort to transformatively address unmet medical needs.
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Affiliation(s)
- Bart I Roman
- Research Group SynBioC, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Universiteit Gent, Coupure Links 653, 9000 Gent, Belgium.,Cancer Research Institute Ghent (CRIG), Corneel Heymanslaan 10, 9000 Gent, Belgium
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14
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Zhai C, Zheng XJ, Song C, Ye XS. Synthesis and immunological evaluation of N-acyl modified Globo H derivatives as anticancer vaccine candidates. RSC Med Chem 2021; 12:1239-1243. [PMID: 34355188 DOI: 10.1039/d1md00067e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 05/17/2021] [Indexed: 12/13/2022] Open
Abstract
Globo H is a tumor-associated carbohydrate antigen (TACA), which serves as a valuable target for antitumor vaccine or cancer immunotherapies. However, most TACAs are T-cell-independent, and they cannot induce powerful immune response due to their poor immunogenicity. To address this problem, herein, several Globo H analogues with modification on the N-acyl group were prepared through a preactivation-based glycosylation strategy from the non-reducing end to the reducing end. These modified Globo H derivatives were then conjugated with carrier protein CRM197 to form glycoconjugates as anticancer vaccine candidates, which were used in combination with adjuvant glycolipid C34 for immunological studies. The immunological effects of these synthetic vaccine candidates were evaluated on Balb/c mice. The results showed that the fluorine-modified N-acyl Globo H conjugates can induce higher titers of IgG antibodies that can recognize the naturally occurring Globo H antigen on the surface of cancer cells and can eliminate cancer cells in the presence of a complement, indicating the potential of these synthetic glycoconjugates as anticancer vaccine candidates.
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Affiliation(s)
- Canjia Zhai
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Xue Yuan Rd No. 38 Beijing 100191 China
| | - Xiu-Jing Zheng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Xue Yuan Rd No. 38 Beijing 100191 China
| | - Chengcheng Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Xue Yuan Rd No. 38 Beijing 100191 China
| | - Xin-Shan Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Xue Yuan Rd No. 38 Beijing 100191 China
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15
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Studzian M, Pérez ME, Arias-Pérez MS. Experimental observations on the reductive cleavage of endo and exo 3,4-O-benzylidene fucopyranoside derivatives. Carbohydr Res 2021; 505:108338. [PMID: 34023694 DOI: 10.1016/j.carres.2021.108338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/19/2021] [Accepted: 05/04/2021] [Indexed: 10/21/2022]
Abstract
Reductive cleavage of methyl 3,4-O-benzylidene-α-L-fucopyranosides with BH3·THF-TfOH and NaCNBH3-TfOH systems resulted in enhanced reaction rates and selectivity compared to BH3·THF-Bu2BOTf. With this latter system, the nature of the O-2 substituent exerted a clear control on the reactivity but practically did not affect the regioselectivity. With TfOH the direction of cleavage was determined, as expected, by the configuration of the acetal carbon atom, but slightly influenced by its competitive epimerization. Protic conditions provided higher regioselectivity in the openings of the exo isomers, affording a useful approach to the practical synthesis of 3-O-benzyl ethers.
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Affiliation(s)
- Maciej Studzian
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, 28805, Alcalá de Henares, Madrid, Spain
| | - María-Elena Pérez
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, 28805, Alcalá de Henares, Madrid, Spain
| | - María-Selma Arias-Pérez
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, 28805, Alcalá de Henares, Madrid, Spain.
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Anderluh M, Berti F, Bzducha-Wróbel A, Chiodo F, Colombo C, Compostella F, Durlik K, Ferhati X, Holmdahl R, Jovanovic D, Kaca W, Lay L, Marinovic-Cincovic M, Marradi M, Ozil M, Polito L, Reina JJ, Reis CA, Sackstein R, Silipo A, Švajger U, Vaněk O, Yamamoto F, Richichi B, van Vliet SJ. Recent advances on smart glycoconjugate vaccines in infections and cancer. FEBS J 2021; 289:4251-4303. [PMID: 33934527 PMCID: PMC9542079 DOI: 10.1111/febs.15909] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 04/09/2021] [Accepted: 04/30/2021] [Indexed: 01/01/2023]
Abstract
Vaccination is one of the greatest achievements in biomedical research preventing death and morbidity in many infectious diseases through the induction of pathogen-specific humoral and cellular immune responses. Currently, no effective vaccines are available for pathogens with a highly variable antigenic load, such as the human immunodeficiency virus or to induce cellular T-cell immunity in the fight against cancer. The recent SARS-CoV-2 outbreak has reinforced the relevance of designing smart therapeutic vaccine modalities to ensure public health. Indeed, academic and private companies have ongoing joint efforts to develop novel vaccine prototypes for this virus. Many pathogens are covered by a dense glycan-coat, which form an attractive target for vaccine development. Moreover, many tumor types are characterized by altered glycosylation profiles that are known as "tumor-associated carbohydrate antigens". Unfortunately, glycans do not provoke a vigorous immune response and generally serve as T-cell-independent antigens, not eliciting protective immunoglobulin G responses nor inducing immunological memory. A close and continuous crosstalk between glycochemists and glycoimmunologists is essential for the successful development of efficient immune modulators. It is clear that this is a key point for the discovery of novel approaches, which could significantly improve our understanding of the immune system. In this review, we discuss the latest advancements in development of vaccines against glycan epitopes to gain selective immune responses and to provide an overview on the role of different immunogenic constructs in improving glycovaccine efficacy.
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Affiliation(s)
- Marko Anderluh
- Faculty of Pharmacy, Faculty of Pharmacy, Chair of Pharmaceutical Chemistry, University of Ljubljana, Slovenia
| | | | - Anna Bzducha-Wróbel
- Department of Biotechnology and Food Microbiology, Warsaw University of Life Sciences-SGGW, Warszawa, Poland
| | - Fabrizio Chiodo
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, The Netherlands.,Institute of Biomolecular Chemistry (ICB), Italian National Research Council (CNR), Pozzuoli, Italy
| | - Cinzia Colombo
- Department of Chemistry and CRC Materiali Polimerici (LaMPo), University of Milan, Italy
| | - Federica Compostella
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Milano, Italy
| | - Katarzyna Durlik
- Department of Microbiology and Parasitology, Jan Kochanowski University, Kielce, Poland
| | - Xhenti Ferhati
- Department of Chemistry 'Ugo Schiff', University of Florence, Sesto Fiorentino, Italy
| | - Rikard Holmdahl
- Division of Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - Dragana Jovanovic
- Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Serbia
| | - Wieslaw Kaca
- Department of Microbiology and Parasitology, Jan Kochanowski University, Kielce, Poland
| | - Luigi Lay
- Department of Chemistry and CRC Materiali Polimerici (LaMPo), University of Milan, Italy
| | - Milena Marinovic-Cincovic
- Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Serbia
| | - Marco Marradi
- Department of Chemistry 'Ugo Schiff', University of Florence, Sesto Fiorentino, Italy
| | - Musa Ozil
- Faculty of Arts and Sciences, Department of Chemistry, Recep Tayyip Erdogan University, Rize, Turkey
| | - Laura Polito
- National Research Council, CNR-SCITEC, Milan, Italy
| | - Josè Juan Reina
- Departamento de Química Orgánica, Universidad de Málaga-IBIMA, Spain.,Andalusian Centre for Nanomedicine and Biotechnology-BIONAND, Parque Tecnológico de Andalucía, Málaga, Spain
| | - Celso A Reis
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal.,IPATIMUP-Institute of Molecular Pathology and Immunology, University of Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Portugal
| | - Robert Sackstein
- Department of Translational Medicine, Translational Glycobiology Institute, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Alba Silipo
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte Sant'Angelo, Napoli, Italy
| | - Urban Švajger
- Blood Transfusion Center of Slovenia, Ljubljana, Slovenia
| | - Ondřej Vaněk
- Department of Biochemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Fumiichiro Yamamoto
- Immunohematology & Glycobiology Laboratory, Josep Carreras Leukaemia Research Institute, Badalona, Spain
| | - Barbara Richichi
- Department of Chemistry 'Ugo Schiff', University of Florence, Sesto Fiorentino, Italy
| | - Sandra J van Vliet
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, The Netherlands
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17
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Liao F, Wang H, Dao Y, Yuan K, Lu J, Shi J, Han Y, Dong S, Lu L. Synthesis and biological evaluation of a lipopeptide-based methamphetamine vaccine. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.10.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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18
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Smith BR, Guo Z. Oligosaccharide Antigen Conjugation to Carrier Proteins to Formulate Glycoconjugate Vaccines. Methods Mol Biol 2021; 2183:305-312. [PMID: 32959250 DOI: 10.1007/978-1-0716-0795-4_15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Conjugation, that is, covalent linkage, to immunological proteins is a common strategy to address the low immunogenicity issue of carbohydrate antigens in vaccine development. This chapter describes an easy and efficient method for oligosaccharide-protein conjugation employing dicarboxylic acid linkers. In this regard, a free amino group is introduced to an oligosaccharide antigen to facilitate coupling with the bifunctional linker upon reaction with its corresponding disuccinimidyl ester. The resultant monosuccinimidyl ester of the oligosaccharide antigen then reacts with the free amino groups of a carrier protein to provide the desired oligosaccharide-protein conjugate.
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Affiliation(s)
- Brittany R Smith
- Department of Chemistry, University of Florida, Gainesville, FL, USA
| | - Zhongwu Guo
- Department of Chemistry, University of Florida, Gainesville, FL, USA.
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19
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Li C, Wu M, Gao X, Zhu Z, Li Y, Lu F, Qin HM. Efficient Biosynthesis of 2'-Fucosyllactose Using an In Vitro Multienzyme Cascade. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:10763-10771. [PMID: 32856455 DOI: 10.1021/acs.jafc.0c04221] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
2'-Fucosyllactose (2-FL) is a fucose-containing oligosaccharide that is found in humans and is believed to have potential nutraceutical and pharmaceutical uses. Here, a promising in vitro multienzyme cascade catalysis system (MECCS) was designed to convert L-fucose and lactose to 2-FL. The cascade comprises L-fucokinase/GDP-L-fucose phosphorylase (FKP), α-1,2-fucosyltransferase (FucT), and pyruvate kinase (PK). This MECCS was able to efficiently regenerate ATP or GTP with 5.67-fold improvement of GDP-L-fucose. To address the rate-limiting step in the MECCS, various FucT orthologues were screened, and HpFucT from Helicobacter pylori showed the highest catalytic efficiency, with a (kcat/KM) of 39.28 min-1 mM-1, while TeFucT from Thermosynechococcus elongatus showed the highest thermostability, with a melting temperature (Tm) of 48 °C. The dissociation constant (KD) of TeFucT (1.34 ± 0.41 μM) was 15-fold lower than that of HpFucT (20.24 ± 1.81 μM), suggesting that TeFucT had much higher affinity for GDP. Structural analysis of HpFucT indicated that Arg169 is part of a unique substrate-binding site that interacts with two oxygen atoms from the phosphate group of GDP-L-fucose. The 2-FL productivities of the MECCS in fed-batch reached 0.67 and 0.73 g/L/h with TeFucT and HpFucT, respectively. This research provides an alternative pathway for efficient production of 2-FL.
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Affiliation(s)
- Chao Li
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education; Tianjin Key Laboratory of Industrial Microbiology; College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, P. R. China
| | - Mian Wu
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education; Tianjin Key Laboratory of Industrial Microbiology; College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, P. R. China
| | - Xin Gao
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education; Tianjin Key Laboratory of Industrial Microbiology; College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, P. R. China
| | - Zhangliang Zhu
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education; Tianjin Key Laboratory of Industrial Microbiology; College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, P. R. China
| | - Yu Li
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education; Tianjin Key Laboratory of Industrial Microbiology; College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, P. R. China
| | - Fuping Lu
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education; Tianjin Key Laboratory of Industrial Microbiology; College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, P. R. China
| | - Hui-Min Qin
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education; Tianjin Key Laboratory of Industrial Microbiology; College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, P. R. China
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20
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Guo J, Jiang W, Li Q, Jaiswal M, Guo Z. Comparative immunological studies of tumor-associated Lewis X, Lewis Y, and KH-1 antigens. Carbohydr Res 2020; 492:107999. [PMID: 32272238 PMCID: PMC7261630 DOI: 10.1016/j.carres.2020.107999] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 10/24/2022]
Abstract
Tumor-associated carbohydrate antigens Lewis X (Lex), Lewis Y (Ley), and KH-1 are useful targets for cancer immunotherapy. In this regard, an insight into the structure-immunogenicity relationships of these antigens is important but this has not been systematically investigated yet. In the current study, Lex, Ley, and KH-1 antigens with a lactose unit at the reducing end as a spacer were synthesized and coupled with keyhole limpet hemocyanin (KLH) protein. Immunological evaluations of the resultant conjugates revealed that they all could elicit robust immune responses whilst the Ley conjugate could provoke the highest titers of total and IgG antibodies. The binding assays of their antisera to each antigen and to cancer cells showed that each antiserum had extensive cross-reaction with all three antigens as protein conjugates and strong but somewhat antigen-selective binding towards MCF-7 cancer cell. Moreover, none of these antisera had obvious binding to SKMEL-28 cancer cell that does not express Lex, Ley and KH-1. The results of assays of these antisera to mediate complement-dependent cytotoxicity (CDC) to MCF-7 and SKMEL-28 cancer cells were very similar to the results of binding assays. Thus, it was concluded that all three antigens could form effective conjugate vaccines whereas the Ley conjugate induced the most robust immune responses and the antiserum of Lex had the highest binding and cytotoxicity to target cancer cells. In addition, as the antibodies induced by each antigen had extensive cross-reaction with other two antigens, either Lex or Ley or the two combined can be utilized to formulate effective conjugate vaccines for cancer immunotherapy. Another paradigm-shifting discovery of this study is that the presentation of Lex, Ley, and KH-1 antigens on cancer cell can be different from that in synthetic conjugates, which should be taken into consideration during the design and optimization of related cancer vaccines or immunotherapies.
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Affiliation(s)
- Jiatong Guo
- Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, FL, 32611, United States
| | - Wenjie Jiang
- Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, FL, 32611, United States
| | - Qingjiang Li
- Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, FL, 32611, United States
| | - Mohit Jaiswal
- Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, FL, 32611, United States
| | - Zhongwu Guo
- Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, FL, 32611, United States.
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21
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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] [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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22
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Wu J, Kaplaneris N, Ni S, Kaltenhäuser F, Ackermann L. Late-stage C(sp 2)-H and C(sp 3)-H glycosylation of C-aryl/alkyl glycopeptides: mechanistic insights and fluorescence labeling. Chem Sci 2020; 11:6521-6526. [PMID: 34094117 PMCID: PMC8152807 DOI: 10.1039/d0sc01260b] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
C(sp3)–H and C(sp2)–H glycosylations of structurally complex amino acids and peptides were accomplished through the assistance of triazole peptide-isosteres. The palladium-catalyzed peptide–saccharide conjugation provided modular access to structurally complex C-alkyl glycoamino acids, glycopeptides and C-aryl glycosides, while enabling the assembly of fluorescent-labeled glycoamino acids. The C–H activation approach represents an expedient and efficient strategy for peptide late-stage diversification in a programmable as well as chemo-, regio-, and diastereo-selective fashion. C–H glycosylations of complex amino acids and peptides were accomplished through the assistance of triazole peptide-isosteres. The palladium-catalyzed glycosylation provided access to complex C-glycosides and fluorescent-labeled glycoamino acids.![]()
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Affiliation(s)
- Jun Wu
- Institut fuer Organische und Biomolekulare Chemie, Georg-August-Universitaet Gottingen Tammannstrasse 2 37077 Goettingen Germany
| | - Nikolaos Kaplaneris
- Institut fuer Organische und Biomolekulare Chemie, Georg-August-Universitaet Gottingen Tammannstrasse 2 37077 Goettingen Germany
| | - Shaofei Ni
- Institut fuer Organische und Biomolekulare Chemie, Georg-August-Universitaet Gottingen Tammannstrasse 2 37077 Goettingen Germany
| | - Felix Kaltenhäuser
- Institut fuer Organische und Biomolekulare Chemie, Georg-August-Universitaet Gottingen Tammannstrasse 2 37077 Goettingen Germany
| | - Lutz Ackermann
- Institut fuer Organische und Biomolekulare Chemie, Georg-August-Universitaet Gottingen Tammannstrasse 2 37077 Goettingen Germany .,German Center for Cardiovascular Research (DZHK) Potsdamer Strasse 58 10785 Berlin Germany
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23
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Jin F, Wang F. The physiological and pathological roles and applications of sialyl Lewis x, a common carbohydrate ligand of the three selectins. Glycoconj J 2020; 37:277-291. [DOI: 10.1007/s10719-020-09912-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/20/2019] [Accepted: 01/29/2020] [Indexed: 12/31/2022]
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24
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Rashidijahanabad Z, Huang X. Recent advances in tumor associated carbohydrate antigen based chimeric antigen receptor T cells and bispecific antibodies for anti-cancer immunotherapy. Semin Immunol 2020; 47:101390. [PMID: 31982247 DOI: 10.1016/j.smim.2020.101390] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 01/01/2020] [Indexed: 11/17/2022]
Abstract
Tumor associated carbohydrate antigens (TACAs) are a class of attractive antigens for the development of anti-cancer immunotherapy. Besides monoclonal antibodies and vaccines, chimeric antigen receptor (CAR) T cells and bispecific antibodies (BsAbs) targeting TACA are exciting directions to harness the power of the immune system to fight cancer. In this review, we focus on two TACAs, i.e., the GD2 ganglioside and the mucin-1 (MUC1) protein. The latest advances in CAR T cells and bispecific antibodies targeting these two antigens are presented. The roles of co-stimulatory molecules, structures of the sequences for antigen binding, methods for CAR and antibody construction, as well as strategies to enhance solid tumor penetration and reduce T cell exhaustion and death are discussed. Furthermore, approaches to reduce "on target, off tumor" side effects are introduced. With further development, CAR T cells and BsAbs targeting GD2 and MUC1 can become powerful agents to effectively treat solid tumor.
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MESH Headings
- Animals
- Antibodies, Bispecific/genetics
- Antibodies, Bispecific/immunology
- Antibodies, Bispecific/metabolism
- Antigens, Tumor-Associated, Carbohydrate/immunology
- Epitopes/genetics
- Epitopes/immunology
- Gangliosides/antagonists & inhibitors
- Gangliosides/chemistry
- Gangliosides/immunology
- Humans
- Immunotherapy, Adoptive
- Mucin-1/immunology
- Neoplasms/immunology
- Neoplasms/metabolism
- Neoplasms/therapy
- Receptors, Antigen, T-Cell/chemistry
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/metabolism
- Receptors, Chimeric Antigen/chemistry
- Receptors, Chimeric Antigen/genetics
- Receptors, Chimeric Antigen/metabolism
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
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Affiliation(s)
- Zahra Rashidijahanabad
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA; Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Xuefei Huang
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA; Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA; Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA.
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25
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Glyco-nanoparticles: New drug delivery systems in cancer therapy. Semin Cancer Biol 2019; 69:24-42. [PMID: 31870939 DOI: 10.1016/j.semcancer.2019.12.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/28/2019] [Accepted: 12/02/2019] [Indexed: 12/24/2022]
Abstract
Cancer is known as one of the most common diseases that are associated with high mobility and mortality in the world. Despite several efforts, current cancer treatment modalities often are highly toxic and lack efficacy and specificity. However, the application of nanotechnology has led to the development of effective nanosized drug delivery systems which are highly selective for tumors and allow a slow release of active anticancer agents. Different Nanoparticles (NPs) such as the silicon-based nano-materials, polymers, liposomes and metal NPs have been designed to deliver anti-cancer drugs to tumor sites. Among different drug delivery systems, carbohydrate-functionalized nanomaterials, specially based on their multi-valent binding capacities and desirable bio-compatibility, have attracted considerable attention as an excellent candidate for controlled release of therapeutic agents. In addition, these carbohydrate functionalized nano-carriers are more compatible with construction of the intracellular delivery platforms like the carbohydrate-modified metal NPs, quantum dots, and magnetic nano-materials. In this review, we discuss recent research in the field of multifunctional glycol-nanoparticles (GNPs) intended for cancer drug delivery applications.
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26
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Chen X, Jin L, Jiang X, Guo L, Gu G, Xu L, Lu L, Wang F, Xiao M. Converting a β-N-acetylhexosaminidase into two trans-β-N-acetylhexosaminidases by domain-targeted mutagenesis. Appl Microbiol Biotechnol 2019; 104:661-673. [PMID: 31822984 DOI: 10.1007/s00253-019-10253-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 10/29/2019] [Accepted: 11/12/2019] [Indexed: 01/14/2023]
Abstract
We have recently derived a β-N-acetylhexosaminidase, BbhI, from Bifidobacterium bifidum JCM 1254, which could regioselectively synthesize GlcNAcβ1-3Galβ1-4Glc with a yield of 44.9%. Here, directed evolution of BbhI by domain-targeted mutagenesis was carried out. Firstly, the GH20 domain was selected for random mutagenesis using MEGAWHOP method and a small library of 1300 clones was created. A total of 734 colonies with reduced hydrolytic activity were isolated, and three mutants with elevated transglycosylation yields, GlcNAcβ1-3Galβ1-4Glc yields of 68.5%, 74.7%, and 81.1%, respectively, were obtained. Subsequently, nineteen independent mutants were constructed according to all the mutation sites in these three mutants. After transglycosylation analysis, Asp714 and Trp773 were identified as key residues for improvement in transglycosylation ability and were chosen for the second round of directed evolution by site-saturation mutagenesis. Two most efficient mutants D714T and W773R that acted as trans-β-N-acetylhexosaminidase were finally achieved. D714T with the substitution at the putative nucleophile assistant residue Asp714 by threonine showed high yield of 84.7% with unobserved hydrolysis towards transglycosylation product. W773R with arginine substitution at Trp773 residue locating at the entrance of catalytic cavity led to the yield up to 81.8%. The kcat/Km values of D714T and W773R for hydrolysis of pNP-β-GlcNAc displayed drastic decreases. NMR investigation of protein-substrate interaction revealed an invariable mode of the catalytic cavity of D714T, W773R, and WT BbhI. The collective motions of protein model showed the mutations Thr714 and Arg773 exerted little effect on the dynamics of the inside but a large effect on the dynamics of the outside of catalytic cavity.
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Affiliation(s)
- Xiaodi Chen
- State Key Lab of Microbial Technology, National Glycoengineering Research Center, Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266237, People's Republic of China.,School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, People's Republic of China
| | - Lan Jin
- State Key Lab of Microbial Technology, National Glycoengineering Research Center, Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266237, People's Republic of China
| | - Xukai Jiang
- State Key Lab of Microbial Technology, National Glycoengineering Research Center, Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266237, People's Republic of China
| | - Longcheng Guo
- State Key Lab of Microbial Technology, National Glycoengineering Research Center, Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266237, People's Republic of China
| | - Guofeng Gu
- State Key Lab of Microbial Technology, National Glycoengineering Research Center, Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266237, People's Republic of China
| | - Li Xu
- State Key Lab of Microbial Technology, National Glycoengineering Research Center, Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266237, People's Republic of China
| | - Lili Lu
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Fengshan Wang
- School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, People's Republic of China
| | - Min Xiao
- State Key Lab of Microbial Technology, National Glycoengineering Research Center, Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266237, People's Republic of China.
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27
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Li M, Wang Z, Yan B, Yin X, Zhao Y, Yu F, Meng M, Liu Y, Zhao W. Design of a MUC1-based tricomponent vaccine adjuvanted with FSL-1 for cancer immunotherapy. MEDCHEMCOMM 2019; 10:2073-2077. [PMID: 32133105 DOI: 10.1039/c9md00254e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 07/10/2019] [Indexed: 12/18/2022]
Abstract
MUC1 is an attractive target for cancer vaccines as a result of its over-expression and aberrant glycosylation pattern on many tumor cells. However, the low immunogenicity of MUC1 and immune tolerance have limited its application. Herein, we designed MUC1-based tricomponent antitumor vaccines adjuvanted with fibroblast stimulating lipopeptide 1 (FSL-1). Immunological results indicate that the glycosylated tricomponent vaccine candidate has elicited both humoral and cellular immune responses. The induced antibodies could effectively bind to MCF-7. Furthermore, the vaccine exhibited an obvious reduction in tumour burden.
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Affiliation(s)
- Mingjing Li
- State Key Laboratory of Medicinal Chemical Biology , College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin , 300350 , P. R. China . ;
| | - Zhaoyu Wang
- State Key Laboratory of Medicinal Chemical Biology , College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin , 300350 , P. R. China . ;
| | - Bocheng Yan
- State Key Laboratory of Medicinal Chemical Biology , College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin , 300350 , P. R. China . ;
| | - Xiaona Yin
- State Key Laboratory of Medicinal Chemical Biology , College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin , 300350 , P. R. China . ;
| | - Yue Zhao
- State Key Laboratory of Medicinal Chemical Biology , College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin , 300350 , P. R. China . ;
| | - Fan Yu
- College of Life Sciences , Nankai University , Nankai District, 94 Weijin Road , Tianjin , 300071 , P. R. China
| | - Meng Meng
- State Key Laboratory of Medicinal Chemical Biology , College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin , 300350 , P. R. China . ;
| | - Yonghui Liu
- State Key Laboratory of Medicinal Chemical Biology , College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin , 300350 , P. R. China . ;
| | - Wei Zhao
- State Key Laboratory of Medicinal Chemical Biology , College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin , 300350 , P. R. China . ;
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28
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Tong W, Maira M, Roychoudhury R, Galan A, Brahimi F, Gilbert M, Cunningham AM, Josephy S, Pirvulescu I, Moffett S, Saragovi HU. Vaccination with Tumor-Ganglioside Glycomimetics Activates a Selective Immunity that Affords Cancer Therapy. Cell Chem Biol 2019; 26:1013-1026.e4. [DOI: 10.1016/j.chembiol.2019.03.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/19/2018] [Accepted: 03/27/2019] [Indexed: 02/06/2023]
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29
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Liu K, Wang L, Guo Z. An extensive review of studies on mycobacterium cell wall polysaccharide-related oligosaccharides – part III: synthetic studies and biological applications of arabinofuranosyl oligosaccharides and their analogs, derivatives and conjugates. J Carbohydr Chem 2019. [DOI: 10.1080/07328303.2019.1630841] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kechun Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji′nan, Shandong, China
| | - Lizhen Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji′nan, Shandong, China
| | - Zhongwu Guo
- Department of Chemistry, University of Florida, Gainesville, FL, USA
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30
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Hossain F, Andreana PR. Developments in Carbohydrate-Based Cancer Therapeutics. Pharmaceuticals (Basel) 2019; 12:ph12020084. [PMID: 31167407 PMCID: PMC6631729 DOI: 10.3390/ph12020084] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 05/24/2019] [Accepted: 05/29/2019] [Indexed: 12/11/2022] Open
Abstract
Cancer cells of diverse origins express extracellular tumor-specific carbohydrate antigens (TACAs) because of aberrant glycosylation. Overexpressed TACAs on the surface of tumor cells are considered biomarkers for cancer detection and have always been prioritized for the development of novel carbohydrate-based anti-cancer vaccines. In recent years, progress has been made in developing synthetic, carbohydrate-based antitumor vaccines to improve immune responses associated with targeting these specific antigens. Tumor cells also exhaust more energy for proliferation than normal cells, by consuming excessive amounts of glucose via overexpressed sugar binding or transporting receptors located in the cellular membrane. Furthermore, inspired by the Warburg effect, glycoconjugation strategies of anticancer drugs have gained considerable attention from the scientific community. This review highlights a small cohort of recent efforts which have been made in carbohydrate-based cancer treatments, including vaccine design and the development of glycoconjugate prodrugs, glycosidase inhibiting iminosugars, and early cancer diagnosis.
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Affiliation(s)
- Farzana Hossain
- Department of Chemistry and Biochemistry, University of Toledo, Toledo, OH 43606, USA.
| | - Peter R Andreana
- Department of Chemistry and Biochemistry, University of Toledo, Toledo, OH 43606, USA.
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31
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Hussain N, Bhardwaj M, Ahmed A, Mukherjee D. Synthesis of Sugar-Based Enones and Their Transformation into 3,5-Disubstituted Furans and 2-Acyl-Substituted 1,2,3-Trideoxy Sugars in the Presence of Lewis Acids. Org Lett 2019; 21:3034-3037. [PMID: 31002522 DOI: 10.1021/acs.orglett.9b00680] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Pd-catalyzed carbonylative cross-coupling reactions of 2-iodoglycals have been developed for the synthesis of sugar-based arylones and ynones using formic acid as the carbonyl source. Whereas acetyl-protected arylones lead to the formation of highly substituted furan derivatives in the presence of Lewis acid, benzyl-protected arylones furnished the 3-deoxy sugar derivative. In the presence of nucleophiles, an attack took place on the C-1 or C-3 carbon regio- and stereoselectively depending on the nature of the nucleophiles.
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Affiliation(s)
- Nazar Hussain
- Natural Product Chemistry Division , Indian Institute of Integrative Medicine (IIIM) , Jammu 180001 , India.,Academy of Scientific and Innovative Research (AcSIR-IIIM) , Jammu 180001 , India
| | - Monika Bhardwaj
- Natural Product Chemistry Division , Indian Institute of Integrative Medicine (IIIM) , Jammu 180001 , India
| | - Ajaz Ahmed
- Natural Product Chemistry Division , Indian Institute of Integrative Medicine (IIIM) , Jammu 180001 , India.,Academy of Scientific and Innovative Research (AcSIR-IIIM) , Jammu 180001 , India
| | - Debaraj Mukherjee
- Natural Product Chemistry Division , Indian Institute of Integrative Medicine (IIIM) , Jammu 180001 , India.,Academy of Scientific and Innovative Research (AcSIR-IIIM) , Jammu 180001 , India
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32
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Ali OM, Amer HH, Abdel-Rahman AAH. Synthesis of N4-β-D-glycoside cytosines and sugar N4-acetylcytosin-1-ylmethylhydrazones as antiviral agents. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823407x215889] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Reaction of monosaccharide aldoses with cytosine (1) gave stereoselectively β- N-glycosides 2a–d, which were treated with acetic anhydride in pyridine to afford the corresponding acetylated derivatives 3a–d. N4-Acetylcytosine (4) was synthesised and treated with ethyl chloroacetate to give 1-(ethoxycarbonylmethyl)- N4-acetylcytosine (5). Hydrolysis of the latter ester with hydrazine hydrate afforded the hydrazide derivative 6. Condensation of the hydrazide with monosaccharide aldoses gave the corresponding sugar hydrazones 7a–f. Acetylation of the hydrazones afforded the per- O-acetyl derivatives 8a–f. The prepared compounds were tested for antiviral activity against hepatitis B virus (HBV) which showed moderate activities.
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Affiliation(s)
- Omar M. Ali
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El-Koam, Egypt
| | - Hamada H. Amer
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El-Koam, Egypt
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33
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Wu X, Yin Z, McKay C, Pett C, Yu J, Schorlemer M, Gohl T, Sungsuwan S, Ramadan S, Baniel C, Allmon A, Das R, Westerlind U, Finn MG, Huang X. Protective Epitope Discovery and Design of MUC1-based Vaccine for Effective Tumor Protections in Immunotolerant Mice. J Am Chem Soc 2018; 140:16596-16609. [PMID: 30398345 DOI: 10.1021/jacs.8b08473] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Human mucin-1 (MUC1) is a highly attractive antigen for the development of anticancer vaccines. However, in human clinical trials of multiple MUC1 based vaccines, despite the generation of anti-MUC1 antibodies, the antibodies often failed to exhibit much binding to tumor presumably due to the challenges in inducing protective immune responses in the immunotolerant environment. To design effective MUC1 based vaccines functioning in immunotolerant hosts, vaccine constructs were first synthesized by covalently linking the powerful bacteriophage Qβ carrier with MUC1 glycopeptides containing 20-22 amino acid residues covering one full length of the tandem repeat region of MUC1. However, IgG antibodies elicited by these first generation constructs in tolerant human MUC1 transgenic (Tg) mice did not bind tumor cells strongly. To overcome this, a peptide array has been synthesized. By profiling binding selectivities of antibodies, the long MUC1 glycopeptide was found to contain immunodominant but nonprotective epitopes. Critical insights were obtained into the identity of the key protective epitope. Redesign of the vaccine focusing on the protective epitope led to a new Qβ-MUC1 construct, which was capable of inducing higher levels of anti-MUC1 IgG antibodies in MUC1.Tg mice to react strongly with and kill a wide range of tumor cells compared to the construct containing the gold standard protein carrier, i.e., keyhole limpet hemocyanin. Vaccination with this new Qβ-MUC1 conjugate led to significant protection of MUC1.Tg mice in both metastatic and solid tumor models. The antibodies exhibited remarkable selectivities toward human breast cancer tissues, suggesting its high translational potential.
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Affiliation(s)
| | | | - Craig McKay
- School of Chemistry & Biochemistry and School of Biological Sciences , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Christian Pett
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V. , 44227 Dortmund , Germany.,Department of Chemistry , Umeå University , 901 87 Umeå , Sweden
| | - Jin Yu
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V. , 44227 Dortmund , Germany
| | - Manuel Schorlemer
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V. , 44227 Dortmund , Germany
| | - Trevor Gohl
- Department of Physiology , Michigan State University , East Lansing , Michigan 48824 , United States
| | | | - Sherif Ramadan
- Chemistry Department, Faculty of Science , Benha University , Benha , Qaliobiya 13518 , Egypt
| | | | | | - Rupali Das
- Department of Physiology , Michigan State University , East Lansing , Michigan 48824 , United States
| | - Ulrika Westerlind
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V. , 44227 Dortmund , Germany.,Department of Chemistry , Umeå University , 901 87 Umeå , Sweden
| | - M G Finn
- School of Chemistry & Biochemistry and School of Biological Sciences , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
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34
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Panza M, Pistorio SG, Stine KJ, Demchenko AV. Automated Chemical Oligosaccharide Synthesis: Novel Approach to Traditional Challenges. Chem Rev 2018; 118:8105-8150. [PMID: 29953217 PMCID: PMC6522228 DOI: 10.1021/acs.chemrev.8b00051] [Citation(s) in RCA: 194] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Advances in carbohydrate chemistry have certainly made common oligosaccharides much more accessible. However, many current methods still rely heavily upon specialized knowledge of carbohydrate chemistry. The application of automated technologies to chemical and life science applications such as genomics and proteomics represents a vibrant field. These automated technologies also present opportunities for their application to organic synthesis, including that of the synthesis of oligosaccharides. However, application of automated methods to the synthesis of carbohydrates is an underdeveloped area as compared to other classes of biomolecules. The overarching goal of this review article is to present the advances that have been made at the interface of carbohydrate chemistry and automated technology.
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Affiliation(s)
- Matteo Panza
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Salvatore G. Pistorio
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Keith J. Stine
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Alexei V. Demchenko
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
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35
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Jäger S, Gude L, Arias-Pérez MS. 4,5-Diazafluorene N-glycopyranosyl hydrazones as scaffolds for potential bioactive metallo-organic compounds: Synthesis, structural study and cytotoxic activity. Bioorg Chem 2018; 81:405-413. [PMID: 30205247 DOI: 10.1016/j.bioorg.2018.08.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 08/08/2018] [Accepted: 08/14/2018] [Indexed: 02/05/2023]
Abstract
A series of novel N1-(4,5-diazafluoren-9-yliden)-N2-glycopyranosyl hydrazines was prepared in synthetically useful yields by treatment of 9H-4,5-diazafluoren-9-hydrazone with different unprotected monosaccharides. The reactions with the monosaccharides tested afforded stereoselectively, and exclusively, cyclic derivatives, whose structures correspond to N-β-glycopyranosyl hydrazones except for the d-arabinose derivative that agrees with the α-anomer. Several copper(II) complexes having a 2:1 ligand to metal mole ratio were also prepared. The metal complexes can bind DNA sequences and preferentially stabilize G-quadruplex DNA structures over dsDNA. The fucose, rhamnose and deoxyglucose copper(II) complexes exhibited a cytotoxic activity against cultured HeLa and PC3 tumor cells comparable to other metal complexes normally used for chemotherapeutic purposes, such as cisplatin.
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Affiliation(s)
- Sebastian Jäger
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, 28805-Alcalá de Henares, Madrid, Spain
| | - Lourdes Gude
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, 28805-Alcalá de Henares, Madrid, Spain; Instituto de Investigación Química Andrés M. del Río (IQAR), Universidad de Alcalá, 28805-Alcalá de Henares, Madrid, Spain
| | - María-Selma Arias-Pérez
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, 28805-Alcalá de Henares, Madrid, Spain.
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36
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Anomeric O-Functionalization of Carbohydrates for Chemical Conjugation to Vaccine Constructs. Molecules 2018; 23:molecules23071742. [PMID: 30018207 PMCID: PMC6099650 DOI: 10.3390/molecules23071742] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/12/2018] [Accepted: 07/13/2018] [Indexed: 11/17/2022] Open
Abstract
Carbohydrates mediate a wide range of biological interactions, and understanding these processes benefits the development of new therapeutics. Isolating sufficient quantities of glycoconjugates from biological samples remains a significant challenge. With advances in chemical and enzymatic carbohydrate synthesis, the availability of complex carbohydrates is increasing and developing methods for stereoselective conjugation these polar head groups to proteins and lipids is critically important for pharmaceutical applications. The aim of this review is to provide an overview of commonly employed strategies for installing a functionalized linker at the anomeric position as well as examples of further transformations that have successfully led to glycoconjugation to vaccine constructs for biological evaluation as carbohydrate-based therapeutics.
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37
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Bais VS, Batra S, Prakash B. Identification of two highly promiscuous thermostable sugar nucleotidylyltransferases for glycorandomization. FEBS J 2018; 285:2840-2855. [PMID: 29806742 DOI: 10.1111/febs.14521] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 04/14/2018] [Accepted: 05/23/2018] [Indexed: 01/22/2023]
Abstract
Glycorandomization is a process that improves the efficacy of glycoconjugates by the addition of a diverse array of sugars to secondary metabolites and antibiotics of pharmaceutical importance. This process, which employs sugar nucleotidylyltransferases (SNTs) and glycosyl transferases (GTs) in tandem, would benefit by the employment of promiscuous enzymes, i.e. those with the ability to utilize diverse noncanonical substrates. As promiscuous GTs are available, here we set out to identify promiscuous SNTs. For this, we began with a detailed family-wide characterization of SNTs. Earlier, we had proposed that SNTs could be classified into two major groups - I and II. They share a common structural framework and utilize a similar catalytic mechanism. Subtle variations in the way two magnesium ions - MgA2+ and MgB2+ - are stabilized by metal ion coordination motifs led to their classification into diverse subgroups viz. I-A, I-B, I-C, II-A, and II-B. Based on this classification, here we investigate promiscuity across the entire family of SNTs. We study the utilization of several sugar phosphates and nucleotides by the various subgroups of SNTs to understand substrate specificity and promiscuity in these. We find that promiscuity is prevalent among SNTs; and in particular, in the thermophilic homologs. In principle, promiscuity profiling identified four new SNTs that can be employed for the production of sugar-nucleotide libraries. However, assaying for their ability to simultaneously utilize multiple substrates in a single-pot reaction, we find two thermophilic SNTs- TMGA , an adenylyltransferase from Thermotoga maritima and PHGT , a thymidylyltransferase from Pyrococcus horikoshii that are readily employable for the production of diverse sugar-nucleotides.
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Affiliation(s)
- Vaibhav Singh Bais
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, India
| | - Sahil Batra
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, India
| | - Balaji Prakash
- Department of Molecular Nutrition, CSIR-Central Food Technological Research Institute, Mysore, India
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38
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Kulkarni SS, Wang CC, Sabbavarapu NM, Podilapu AR, Liao PH, Hung SC. "One-Pot" Protection, Glycosylation, and Protection-Glycosylation Strategies of Carbohydrates. Chem Rev 2018; 118:8025-8104. [PMID: 29870239 DOI: 10.1021/acs.chemrev.8b00036] [Citation(s) in RCA: 181] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Carbohydrates, which are ubiquitously distributed throughout the three domains of life, play significant roles in a variety of vital biological processes. Access to unique and homogeneous carbohydrate materials is important to understand their physical properties, biological functions, and disease-related features. It is difficult to isolate carbohydrates in acceptable purity and amounts from natural sources. Therefore, complex saccharides with well-defined structures are often most conviently accessed through chemical syntheses. Two major hurdles, regioselective protection and stereoselective glycosylation, are faced by carbohydrate chemists in synthesizing these highly complicated molecules. Over the past few years, there has been a radical change in tackling these problems and speeding up the synthesis of oligosaccharides. This is largely due to the development of one-pot protection, one-pot glycosylation, and one-pot protection-glycosylation protocols and streamlined approaches to orthogonally protected building blocks, including those from rare sugars, that can be used in glycan coupling. In addition, new automated strategies for oligosaccharide syntheses have been reported not only for program-controlled assembly on solid support but also by the stepwise glycosylation in solution phase. As a result, various sugar molecules with highly complex, large structures could be successfully synthesized. To summarize these recent advances, this review describes the methodologies for one-pot protection and their one-pot glycosylation into the complex glycans and the chronological developments associated with automated syntheses of oligosaccharides.
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Affiliation(s)
- Suvarn S Kulkarni
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | | | | | - Ananda Rao Podilapu
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | - Pin-Hsuan Liao
- Institute of Chemistry , Academia Sinica , Taipei 115 , Taiwan
| | - Shang-Cheng Hung
- Genomics Research Center , Academia Sinica , Taipei 115 , Taiwan
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39
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Chaudhury A, Mukherjee MM, Ghosh R. Synthetic avenues towards a tetrasaccharide related to Streptococcus pneumonia of serotype 6A. Beilstein J Org Chem 2018; 14:1095-1102. [PMID: 29977381 PMCID: PMC6009338 DOI: 10.3762/bjoc.14.95] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 04/26/2018] [Indexed: 11/23/2022] Open
Abstract
Streptococcus pneumonia (SPn) is a Gram-positive bacterium which causes life threatening diseases. The bacteria protect themselves against non-specific host defence by an external polysaccharide (PS) capsule which bears a repeating unit, α-D-Galp(1->3)-α-D-Glcp(1->3)-α-L-Rhap(1->3)-D-Rib (SPn 6A). A closer look at the structure reveals the presence of α-linked galactose and glucose residues. The synthesis of these 1,2-cis glycosidic linkages are considered challenging particularly in the context of a one-pot oligosaccharide synthesis. We have synthesized the aforesaid tetrasaccharide (SPn 6A) based on both stepwise and sequential one-pot glycosylation reactions using easily accessible common building blocks; eventually similar overall yields were obtained in both cases.
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Affiliation(s)
- Aritra Chaudhury
- Department of Chemistry, Jadavpur University, 188, Raja S. C. Mullick Rd., Kolkata 700032, India.,Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, 741246, West Bengal, India
| | - Mana Mohan Mukherjee
- Department of Chemistry, Jadavpur University, 188, Raja S. C. Mullick Rd., Kolkata 700032, India.,present addrress: Laboratory of Bioorganic Chemistry, NIH, NIDDK, Bethesda, MD, USA
| | - Rina Ghosh
- Department of Chemistry, Jadavpur University, 188, Raja S. C. Mullick Rd., Kolkata 700032, India
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40
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Cai L, Gu Z, Zhong J, Wen D, Chen G, He L, Wu J, Gu Z. Advances in glycosylation-mediated cancer-targeted drug delivery. Drug Discov Today 2018; 23:1126-1138. [DOI: 10.1016/j.drudis.2018.02.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/22/2018] [Accepted: 02/22/2018] [Indexed: 12/11/2022]
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41
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Song C, Zheng XJ, Liu CC, Zhou Y, Ye XS. A cancer vaccine based on fluorine-modified sialyl-Tn induces robust immune responses in a murine model. Oncotarget 2018; 8:47330-47343. [PMID: 28537884 PMCID: PMC5564568 DOI: 10.18632/oncotarget.17646] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 04/19/2017] [Indexed: 12/13/2022] Open
Abstract
Development of an effective vaccine to target tumor associated carbohydrate antigens, aberrantly expressed on the cell surface of various carcinomas, is an appealing approach toward cancer immunotherapy. However, a major problem of carbohydrate antigens is their poor immunogenicity. Immunization with modified-carbohydrate antigens could improve the immunogenicity and induce cross reaction with the native carbohydrate antigens. In this study, we investigated the antitumor ability of three fluoro-substituted sialyl-Tn (STn) analogues (2, 3, 4) coupled to KLH (keyhole limpet hemocyanin) and studied the mechanism of tumor immunotherapy of the vaccines in a murine model of colon cancer. Vaccination with 4-KLH, in which the two N-acetyl groups of STn are substituted with N-fluoroacetyl groups, could remarkably prolong the survival of tumor-bearing mouse and resulted in a significant reduction in tumor burden of lungs compared with STn-KLH (1-KLH). The vaccine 4-KLH could provoke stronger cytotoxic T lymphocytes immune response, T helper (Th) cell-mediated immune response and an earlier-stage Th1 immune response than 1-KLH, thus breaking immune tolerance and generating a therapeutic response. The 4-KLH vaccine induced strong tumor-specific anti-STn antibodies which could mediate complement-dependent cytotoxicity and antibody-dependent cell-mediated cytotoxicity against human tumor cells. Moreover, in the absence of adjuvant, 4-KLH still elicited stronger immune responses than 1-KLH. Our data suggested that 4-KLH is superior in tumor prevention. The strategic hapten fluorination may be a potential approach applicable to the vaccines development for the cancer immunotherapy.
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Affiliation(s)
- Chengcheng Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.,School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Xiu-Jing Zheng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Chang-Cheng Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yifa Zhou
- School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Xin-Shan Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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42
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Wei MM, Wang YS, Ye XS. Carbohydrate-based vaccines for oncotherapy. Med Res Rev 2018; 38:1003-1026. [PMID: 29512174 DOI: 10.1002/med.21493] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 01/18/2018] [Accepted: 01/31/2018] [Indexed: 01/02/2023]
Abstract
Cancer is still one of the most serious threats to human worldwide. Aberrant patterns of glycosylation on the surface of cancer cells, which are correlated with various cancer development stages, can differentiate the abnormal tissues from the healthy ones. Therefore, tumor-associated carbohydrate antigens (TACAs) represent the desired targets for cancer immunotherapy. However, these carbohydrate antigens may not able to evoke powerful immune response to combat with cancer for their poor immunogenicity and immunotolerance. Different approaches have been developed to address these problems. In this review, we want to summarize the latest advances in TACAs based anticancer vaccines.
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Affiliation(s)
- Meng-Man Wei
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yong-Shi Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Xin-Shan Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
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43
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Gao J, Guo Z. Progress in the synthesis and biological evaluation of lipid A and its derivatives. Med Res Rev 2018; 38:556-601. [PMID: 28621828 PMCID: PMC5732894 DOI: 10.1002/med.21447] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 03/09/2017] [Accepted: 04/20/2017] [Indexed: 12/31/2022]
Abstract
Lipid A is one of the core structures of bacterial lipopolysaccharides (LPSs), and it is mainly responsible for the strong immunostimulatory activities of LPS through interactions with the Toll-like receptors and other molecules in the human immune system. To obtain structurally homogeneous and well-defined lipid As and its derivatives in quantities meaningful for various biological studies and applications, their chemical synthesis has become a focal point. This review has provided a survey of significant progresses made in the synthesis of lipid A, and its derivatives that carry diverse saturated and unsaturated lipids, have the phosphate group at its reducing end replaced with a more stable phosphate or carboxyl group, or lack the reducing end phosphate or both phosphate groups, as well as progresses in the synthesis of LPS analogs and other lipid A conjugates. These synthetic molecules have facilitated the elucidation of the structure-activity relationships of lipid A useful for the design and development of lipid A based therapeutics, such as those utilized to treat sepsis, and other medical applications, for example the use of monophosphoryl lipid A as a carrier molecule for the study of fully synthetic self-adjuvanting conjugate vaccines. These topics are also briefly covered in the current review.
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Affiliation(s)
- Jian Gao
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 27 Shanda Nan Lu, Jinan 250100, China
| | - Zhongwu Guo
- Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, Florida 32611, United States
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44
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Keith DJ, Marasligiller SA, Sasse AW, Townsend SD. One-pot Microwave-assisted Conversion of Anomeric Nitrate-esters to Trichloroacetimidates. J Vis Exp 2018. [PMID: 29364227 DOI: 10.3791/56610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The goal of the following procedure is to provide a demonstration of the one-pot conversion of a 2-azido-1-nitrate-ester to a trichloroacetimidate glycosyl donor. Following azido-nitration of a glycal, the product 2-azido-1-nitrate ester can be hydrolyzed under microwave-assisted irradiation. This transformation is usually achieved using strongly nucleophilic reagents and extended reaction times. Microwave irradiation induces hydrolysis, in the absence of reagents, with short reaction times. Following denitration, the intermediate anomeric alcohol is converted, in the same pot, to the corresponding 2-azido-1-trichloroacetimidate.
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Affiliation(s)
| | | | | | - Steven D Townsend
- Department of Chemistry, Vanderbilt University; Institute of Chemical-Biology, Vanderbilt University;
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45
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Yamazaki Y, Nambu Y, Ohmae M, Sugai M, Kimura S. Immune responses against Lewis Y tumor-associated carbohydrate antigen displayed densely on self-assembling nanocarriers. Org Biomol Chem 2018; 16:8095-8105. [DOI: 10.1039/c8ob01955j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Immune responses against Lewis Y (LY) displayed at varying densities on the nanocarriers were studied.
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Affiliation(s)
- Yuji Yamazaki
- Department of Material Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Yukiko Nambu
- Division of Molecular Genetics
- Department of Biochemistry and Bioinformative Sciences
- School of Medicine
- University of Fukui
- Fukui 910-1193
| | - Masashi Ohmae
- Department of Material Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Manabu Sugai
- Division of Molecular Genetics
- Department of Biochemistry and Bioinformative Sciences
- School of Medicine
- University of Fukui
- Fukui 910-1193
| | - Shunsaku Kimura
- Department of Material Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
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46
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Hussain N, Babu Tatina M, Mukherjee D. Cross dehydrogenative coupling of sugar enol ethers with terminal alkenes in the synthesis of pseudo-disaccharides, chiral oxadecalins and a conjugated triene. Org Biomol Chem 2018; 16:2666-2677. [DOI: 10.1039/c8ob00168e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An efficient strategy for the synthesis of C-2 and C-3 branched sugar dienes via cross dehydrogenative coupling of sugar enol ethers with terminal alkenes was developed.
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Affiliation(s)
- Nazar Hussain
- Academy of Scientific and Innovative Research
- India
- Indian Institute of Integrative Medicine (CSIR)
- Jammu-180001
- India
| | - Madhu Babu Tatina
- Academy of Scientific and Innovative Research
- India
- Indian Institute of Integrative Medicine (CSIR)
- Jammu-180001
- India
| | - Debaraj Mukherjee
- Academy of Scientific and Innovative Research
- India
- Indian Institute of Integrative Medicine (CSIR)
- Jammu-180001
- India
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47
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Pifferi C, Thomas B, Goyard D, Berthet N, Renaudet O. Heterovalent Glycodendrimers as Epitope Carriers for Antitumor Synthetic Vaccines. Chemistry 2017; 23:16283-16296. [PMID: 28845889 PMCID: PMC6175327 DOI: 10.1002/chem.201702708] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Indexed: 01/01/2023]
Abstract
The large majority of TACA-based (TACA=Tumor-Associated Carbohydrate Antigens) antitumor vaccines target only one carbohydrate antigen, thereby often resulting in the incomplete destruction of cancer cells. However, the morphological heterogeneity of the tumor glycocalix, which is in constant evolution during malignant transformation, is a crucial point to consider in the design of vaccine candidates. In this paper, an efficient synthetic strategy based on orthogonal chemoselective ligations to prepare fully synthetic glycosylated cyclopeptide scaffolds grafted with both Tn and TF antigen analogues is reported. To evaluate their ability to be recognized as tumor antigens, direct interaction ELISA assays have been performed with the anti-Tn monoclonal antibody 9A7. Although both heterovalent structures showed binding capacities with 9A7, the presence of the second TF epitope did not interfere with the recognition of Tn except in one epitope arrangement. This heterovalent glycosylated structure thus represents an attractive epitope carrier to be further functionalized with T-cell peptide epitopes.
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Affiliation(s)
- Carlo Pifferi
- Univ. Grenoble AlpesCNRSDCM UMR 525038000GrenobleFrance
| | | | - David Goyard
- Univ. Grenoble AlpesCNRSDCM UMR 525038000GrenobleFrance
| | | | - Olivier Renaudet
- Univ. Grenoble AlpesCNRSDCM UMR 525038000GrenobleFrance
- Institut Universitaire de France103 boulevard Saint-Michel75005ParisFrance
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48
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Boronic acid-based chemical sensors for saccharides. Carbohydr Res 2017; 452:129-148. [DOI: 10.1016/j.carres.2017.10.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/04/2017] [Accepted: 10/17/2017] [Indexed: 12/15/2022]
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49
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Synthesis and Evaluation of GM2-Monophosphoryl Lipid A Conjugate as a Fully Synthetic Self-Adjuvant Cancer Vaccine. Sci Rep 2017; 7:11403. [PMID: 28900154 PMCID: PMC5595996 DOI: 10.1038/s41598-017-11500-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 08/25/2017] [Indexed: 12/13/2022] Open
Abstract
An efficient method was developed for the synthesis of a GM2 derivative suitable for the conjugation with various biomolecules. This GM2 derivative was covalently linked to keyhole limpet hemocyanin (KLH) and monophosphoryl lipid A (MPLA) to form novel therapeutic cancer vaccines. Immunological evaluations of the resultant conjugates in mice revealed that they elicited robust GM2-specific overall and IgG antibody responses. Moreover, the GM2-MPLA conjugate was disclosed to elicit strong immune responses without the use of an adjuvant, proving its self-adjuvant property. The antisera of both conjugates showed strong binding and mediated similarly effective complement-dependent cytotoxicity to GM2-expressing cancer cell line MCF-7. Based on these results, it was concluded that both GM2-MPLA and GM2-KLH are promising candidates as therapeutic cancer vaccines, whereas fully synthetic GM2-MPLA, which has homogeneous and well-defined structure and self-adjuvant property, deserves more attention and studies.
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50
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Kursun TT, Cimen D, Caykara T. Glycopolymer brushes with specific protein recognition property. J Appl Polym Sci 2017. [DOI: 10.1002/app.45238] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Dilek Cimen
- Department of Chemistry; Faculty of Science, Gazi University; 06500 Besevler Ankara Turkey
| | - Tuncer Caykara
- Department of Chemistry; Faculty of Science, Gazi University; 06500 Besevler Ankara Turkey
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