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Rabadán González I, McLean JT, Ostrovitsa N, Fitzgerald S, Mezzetta A, Guazzelli L, O'Shea DF, Scanlan EM. A thiol-ene mediated approach for peptide bioconjugation using 'green' solvents under continuous flow. Org Biomol Chem 2024; 22:2203-2210. [PMID: 38414440 DOI: 10.1039/d4ob00122b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Flow chemistry has emerged as an integral process within the chemical sector permitting energy efficient synthetic scale-up while improving safety and minimising solvent usage. Herein, we report the first applications of the photoactivated, radical-mediated thiol-ene reaction for peptide bioconjugation under continuous flow. Bioconjugation reactions employing deep eutectic solvents, bio-based solvents and fully aqueous systems are reported here for a range of biologically relevant peptide substrates. The use of a water soluble photoinitiator, Irgacure 2959, permitted synthesis of glycosylated peptides in fully aqueous conditions, obviating the need for addition of organic solvents and enhancing the green credentials of these rapid, photoactivated, bioconjugation reactions.
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Affiliation(s)
- Inés Rabadán González
- Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland.
| | - Joshua T McLean
- Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland.
| | - Nikita Ostrovitsa
- Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland.
| | - Sheila Fitzgerald
- Department of Chemistry, RCSI, 123 St Stephen's Green, Dublin 2, Ireland
| | | | | | - Donal F O'Shea
- Department of Chemistry, RCSI, 123 St Stephen's Green, Dublin 2, Ireland
| | - Eoin M Scanlan
- Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland.
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2
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Chauhan P, V R, Kumar M, Molla R, Mishra SD, Basa S, Rai V. Chemical technology principles for selective bioconjugation of proteins and antibodies. Chem Soc Rev 2024; 53:380-449. [PMID: 38095227 DOI: 10.1039/d3cs00715d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Proteins are multifunctional large organic compounds that constitute an essential component of a living system. Hence, control over their bioconjugation impacts science at the chemistry-biology-medicine interface. A chemical toolbox for their precision engineering can boost healthcare and open a gateway for directed or precision therapeutics. Such a chemical toolbox remained elusive for a long time due to the complexity presented by the large pool of functional groups. The precise single-site modification of a protein requires a method to address a combination of selectivity attributes. This review focuses on guiding principles that can segregate them to simplify the task for a chemical method. Such a disintegration systematically employs a multi-step chemical transformation to deconvolute the selectivity challenges. It constitutes a disintegrate (DIN) theory that offers additional control parameters for tuning precision in protein bioconjugation. This review outlines the selectivity hurdles faced by chemical methods. It elaborates on the developments in the perspective of DIN theory to demonstrate simultaneous regulation of reactivity, chemoselectivity, site-selectivity, modularity, residue specificity, and protein specificity. It discusses the progress of such methods to construct protein and antibody conjugates for biologics, including antibody-fluorophore and antibody-drug conjugates (AFCs and ADCs). It also briefs how this knowledge can assist in developing small molecule-based covalent inhibitors. In the process, it highlights an opportunity for hypothesis-driven routes to accelerate discoveries of selective methods and establish new targetome in the precision engineering of proteins and antibodies.
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Affiliation(s)
- Preeti Chauhan
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Ragendu V
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Mohan Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Rajib Molla
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Surya Dev Mishra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Sneha Basa
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Vishal Rai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
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3
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Bielski R, Mencer D. New syntheses of thiosaccharides utilizing substitution reactions. Carbohydr Res 2023; 532:108915. [PMID: 37597327 DOI: 10.1016/j.carres.2023.108915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 08/21/2023]
Abstract
Novel synthetic methods published since 2005 affording carbohydrates containing sulfur atom(s) are reviewed. The review is divided to subchapters based on the position of sulfur atom(s) in the sugar molecule. Only those methods that take advantage of substitution are discussed.
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Affiliation(s)
- Roman Bielski
- Department of Pharmaceutical Sciences, Wilkes University, Wilkes-Barre, PA, 18766, United States; Chemventive, LLC Chadds Ford, PA, 19317, United States.
| | - Donald Mencer
- Department of Chemistry & Biochemistry, Wilkes University, Wilkes-Barre, PA, 18766, United States.
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4
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Chauhan P, V. R, Kumar M, Molla R, V. B. U, Rai V. Dis integrate (DIN) Theory Enabling Precision Engineering of Proteins. ACS CENTRAL SCIENCE 2023; 9:137-150. [PMID: 36844488 PMCID: PMC9951294 DOI: 10.1021/acscentsci.2c01455] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Indexed: 06/18/2023]
Abstract
The chemical toolbox for the selective modification of proteins has witnessed immense interest in the past few years. The rapid growth of biologics and the need for precision therapeutics have fuelled this growth further. However, the broad spectrum of selectivity parameters creates a roadblock to the field's growth. Additionally, bond formation and dissociation are significantly redefined during the translation from small molecules to proteins. Understanding these principles and developing theories to deconvolute the multidimensional attributes could accelerate the area. This outlook presents a disintegrate (DIN) theory for systematically disintegrating the selectivity challenges through reversible chemical reactions. An irreversible step concludes the reaction sequence to render an integrated solution for precise protein bioconjugation. In this perspective, we highlight the key advancements, unsolved challenges, and potential opportunities.
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5
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Doelman W, van Kasteren SI. Synthesis of glycopeptides and glycopeptide conjugates. Org Biomol Chem 2022; 20:6487-6507. [PMID: 35903971 PMCID: PMC9400947 DOI: 10.1039/d2ob00829g] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Protein glycosylation is a key post-translational modification important to many facets of biology. Glycosylation can have critical effects on protein conformation, uptake and intracellular routing. In immunology, glycosylation of antigens has been shown to play a role in self/non-self distinction and the effective uptake of antigens. Improperly glycosylated proteins and peptide fragments, for instance those produced by cancerous cells, are also prime candidates for vaccine design. To study these processes, access to peptides bearing well-defined glycans is of critical importance. In this review, the key approaches towards synthetic, well-defined glycopeptides, are described, with a focus on peptides useful for and used in immunological studies. Special attention is given to the glycoconjugation approaches that have been developed in recent years, as these enable rapid synthesis of various (unnatural) glycopeptides, enabling powerful carbohydrate structure/activity studies. These techniques, combined with more traditional total synthesis and chemoenzymatic methods for the production of glycopeptides, should help unravel some of the complexities of glycobiology in the near future.
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Affiliation(s)
- Ward Doelman
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands.
| | - Sander I van Kasteren
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands.
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6
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Homo- and Heterogeneous Glycoconjugates on the Basis of N-Glycans and Human Serum Albumin: Synthesis and Biological Evaluation. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27041285. [PMID: 35209074 PMCID: PMC8877828 DOI: 10.3390/molecules27041285] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 11/17/2022]
Abstract
Neoglycoconjugates mimicking natural compounds and possessing a variety of biological functions are very successful tools for researchers to understand the general mechanisms of many biological processes in living organisms. These substances are characterized by high biotolerance and specificity, with low toxicity. Due to the difficult isolation of individual glycoclusters from biological objects, special interest has been directed toward synthetic analogs. This review is mainly focused on the one-pot, double-click methodology (containing alkyne–azide click cycloaddition with the following 6π-azaelectrocyclization reactions) used in the synthesis of N-glycoconjugates. Homogeneous (including one type of biantennary N-glycan fragments) and heterogeneous (containing two to four types of biantennary N-glycan fragments) glycoclusters on albumin were synthesized via this strategy. A series of cell-, tissue- and animal-based experiments proved glycoclusters to be a very promising class of targeted delivery systems. Depending on the oligosaccharide units combined in the cluster, their amount, and arrangement relative to one another, conjugates can recognize various cells, including cancer cells, with high selectivity. These results open new perspectives for affected tissue visualization and treatment.
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7
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Kazybayeva DS, Irmukhametova GS, Khutoryanskiy VV. Thiol-Ene “Click Reactions” as a Promising Approach to Polymer Materials. POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422010055] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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8
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Shen MH, Wang YJ, Wang Y, Zhou Y, Gu J, Liu XQ, Guo J, Ouyang M, Deng L, Xu HD. α-Vinyl azide–cysteine click coupling reaction enabled bioorthogonal peptide/protein modification. Org Chem Front 2022. [DOI: 10.1039/d2qo00736c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
α-Alkyl and α-aryl vinyl azides were found to be able to couple with cysteine-derived alkyl thiols chemoselectively under mild conditions, providing the corresponding β-ketosulfides with simultaneous extrusion of N2 and ammonia.
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Affiliation(s)
- Mei-Hua Shen
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province, 213164, China
| | - Yu-Jiao Wang
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province, 213164, China
| | - Yong Wang
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province, 213164, China
| | - Ying Zhou
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province, 213164, China
| | - Jie Gu
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province, 213164, China
| | - Xiao-Qian Liu
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province, 213164, China
| | - Jia Guo
- Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou, Jiangsu Province, 213164, China
| | - Mingxing Ouyang
- Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou, Jiangsu Province, 213164, China
| | - Linhong Deng
- Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou, Jiangsu Province, 213164, China
| | - Hua-Dong Xu
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province, 213164, China
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9
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McLean JT, Benny A, Nolan MD, Swinand G, Scanlan EM. Cysteinyl radicals in chemical synthesis and in nature. Chem Soc Rev 2021; 50:10857-10894. [PMID: 34397045 DOI: 10.1039/d1cs00254f] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Nature harnesses the unique properties of cysteinyl radical intermediates for a diverse range of essential biological transformations including DNA biosynthesis and repair, metabolism, and biological photochemistry. In parallel, the synthetic accessibility and redox chemistry of cysteinyl radicals renders them versatile reactive intermediates for use in a vast array of synthetic applications such as lipidation, glycosylation and fluorescent labelling of proteins, peptide macrocyclization and stapling, desulfurisation of peptides and proteins, and development of novel therapeutics. This review provides the reader with an overview of the role of cysteinyl radical intermediates in both chemical synthesis and biological systems, with a critical focus on mechanistic details. Direct insights from biological systems, where applied to chemical synthesis, are highlighted and potential avenues from nature which are yet to be explored synthetically are presented.
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Affiliation(s)
- Joshua T McLean
- Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse St., Dublin, D02 R590, Ireland.
| | - Alby Benny
- Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse St., Dublin, D02 R590, Ireland.
| | - Mark D Nolan
- Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse St., Dublin, D02 R590, Ireland.
| | - Glenna Swinand
- Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse St., Dublin, D02 R590, Ireland.
| | - Eoin M Scanlan
- Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse St., Dublin, D02 R590, Ireland.
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10
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Fairbanks BD, Macdougall LJ, Mavila S, Sinha J, Kirkpatrick BE, Anseth KS, Bowman CN. Photoclick Chemistry: A Bright Idea. Chem Rev 2021; 121:6915-6990. [PMID: 33835796 PMCID: PMC9883840 DOI: 10.1021/acs.chemrev.0c01212] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
At its basic conceptualization, photoclick chemistry embodies a collection of click reactions that are performed via the application of light. The emergence of this concept has had diverse impact over a broad range of chemical and biological research due to the spatiotemporal control, high selectivity, and excellent product yields afforded by the combination of light and click chemistry. While the reactions designated as "photoclick" have many important features in common, each has its own particular combination of advantages and shortcomings. A more extensive realization of the potential of this chemistry requires a broader understanding of the physical and chemical characteristics of the specific reactions. This review discusses the features of the most frequently employed photoclick reactions reported in the literature: photomediated azide-alkyne cycloadditions, other 1,3-dipolarcycloadditions, Diels-Alder and inverse electron demand Diels-Alder additions, radical alternating addition chain transfer additions, and nucleophilic additions. Applications of these reactions in a variety of chemical syntheses, materials chemistry, and biological contexts are surveyed, with particular attention paid to the respective strengths and limitations of each reaction and how that reaction benefits from its combination with light. Finally, challenges to broader employment of these reactions are discussed, along with strategies and opportunities to mitigate such obstacles.
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Affiliation(s)
- Benjamin D Fairbanks
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80303, United States
| | - Laura J Macdougall
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80303, United States
| | - Sudheendran Mavila
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80303, United States
| | - Jasmine Sinha
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80303, United States
| | - Bruce E Kirkpatrick
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80303, United States
- The BioFrontiers Institute, University of Colorado, Boulder, Colorado 80303, United States
- Medical Scientist Training Program, School of Medicine, University of Colorado, Aurora, Coorado 80045, United States
| | - Kristi S Anseth
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80303, United States
- The BioFrontiers Institute, University of Colorado, Boulder, Colorado 80303, United States
| | - Christopher N Bowman
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80303, United States
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado 80303, United States
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11
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Walther R, Monge P, Pedersen AB, Benderoth A, Pedersen JN, Farzadfard A, Mandrup OA, Howard KA, Otzen DE, Zelikin AN. Per-glycosylation of the Surface-Accessible Lysines: One-Pot Aqueous Route to Stabilized Proteins with Native Activity. Chembiochem 2021; 22:2478-2485. [PMID: 33998129 DOI: 10.1002/cbic.202100228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Indexed: 11/11/2022]
Abstract
Chemical glycosylation of proteins is a powerful tool applied widely in biomedicine and biotechnology. However, it is a challenging undertaking and typically relies on recombinant proteins and site-specific conjugations. The scope and utility of this nature-inspired methodology would be broadened tremendously by the advent of facile, scalable techniques in glycosylation, which are currently missing. In this work, we investigated a one-pot aqueous protocol to achieve indiscriminate, surface-wide glycosylation of the surface accessible amines (lysines and/or N-terminus). We reveal that this approach afforded minimal if any change in the protein activity and recognition events in biochemical and cell culture assays, but at the same time provided a significant benefit of stabilizing proteins against aggregation and fibrillation - as demonstrated on serum proteins (albumins and immunoglobulin G, IgG), an enzyme (uricase), and proteins involved in neurodegenerative disease (α-synuclein) and diabetes (insulin). Most importantly, this highly advantageous result was achieved via a one-pot aqueous protocol performed on native proteins, bypassing the use of complex chemical methodologies and recombinant proteins.
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Affiliation(s)
- Raoul Walther
- Department of Chemistry, Aarhus University, Aarhus, 8000, Denmark
| | - Pere Monge
- Department of Chemistry, Aarhus University, Aarhus, 8000, Denmark
| | | | - Anja Benderoth
- Department of Chemistry, Aarhus University, Aarhus, 8000, Denmark
| | | | - Azad Farzadfard
- Interdisciplinary Nanoscience Centre (iNANO), Aarhus University, Aarhus, 8000, Denmark
| | - Ole A Mandrup
- Interdisciplinary Nanoscience Centre (iNANO), Aarhus University, Aarhus, 8000, Denmark
| | - Kenneth A Howard
- Interdisciplinary Nanoscience Centre (iNANO), Aarhus University, Aarhus, 8000, Denmark.,Department of Molecular Biology and Genetics, Aarhus University, Aarhus, 8000, Denmark
| | - Daniel E Otzen
- Interdisciplinary Nanoscience Centre (iNANO), Aarhus University, Aarhus, 8000, Denmark.,Department of Molecular Biology and Genetics, Aarhus University, Aarhus, 8000, Denmark
| | - Alexander N Zelikin
- Department of Chemistry, Aarhus University, Aarhus, 8000, Denmark.,Interdisciplinary Nanoscience Centre (iNANO), Aarhus University, Aarhus, 8000, Denmark
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12
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Ahangarpour M, Kavianinia I, Harris PWR, Brimble MA. Photo-induced radical thiol-ene chemistry: a versatile toolbox for peptide-based drug design. Chem Soc Rev 2021; 50:898-944. [PMID: 33404559 DOI: 10.1039/d0cs00354a] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
While the global market for peptide/protein-based therapeutics is witnessing significant growth, the development of peptide drugs remains challenging due to their low oral bioavailability, poor membrane permeability, and reduced metabolic stability. However, a toolbox of chemical approaches has been explored for peptide modification to overcome these obstacles. In recent years, there has been a revival of interest in photoinduced radical thiol-ene chemistry as a powerful tool for the construction of therapeutic peptides.
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Affiliation(s)
- Marzieh Ahangarpour
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand.
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13
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Nolan MD, Scanlan EM. Applications of Thiol-Ene Chemistry for Peptide Science. Front Chem 2020; 8:583272. [PMID: 33282831 PMCID: PMC7689097 DOI: 10.3389/fchem.2020.583272] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 10/13/2020] [Indexed: 12/21/2022] Open
Abstract
Radical thiol-ene chemistry has been demonstrated for a range of applications in peptide science, including macrocyclization, glycosylation and lipidation amongst a myriad of others. The thiol-ene reaction offers a number of advantages in this area, primarily those characteristic of "click" reactions. This provides a chemical approach to peptide modification that is compatible with aqueous conditions with high orthogonality and functional group tolerance. Additionally, the use of a chemical approach for peptide modification affords homogeneous peptides, compared to heterogeneous mixtures often obtained through biological methods. In addition to peptide modification, thiol-ene chemistry has been applied in novel approaches to biological studies through synthesis of mimetics and use in development of probes. This review will cover the range of applications of the radical-mediated thiol-ene reaction in peptide and protein science.
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Affiliation(s)
- Mark D Nolan
- School of Chemistry, Trinity College Dublin, Trinity Biomedical Sciences Institute, Dublin, Ireland
| | - Eoin M Scanlan
- School of Chemistry, Trinity College Dublin, Trinity Biomedical Sciences Institute, Dublin, Ireland
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14
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Kuhaudomlarp S, Cerofolini L, Santarsia S, Gillon E, Fallarini S, Lombardi G, Denis M, Giuntini S, Valori C, Fragai M, Imberty A, Dondoni A, Nativi C. Fucosylated ubiquitin and orthogonally glycosylated mutant A28C: conceptually new ligands for Burkholderia ambifaria lectin (BambL). Chem Sci 2020; 11:12662-12670. [PMID: 34094460 PMCID: PMC8163020 DOI: 10.1039/d0sc03741a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two orthogonal, metal free click reactions, enabled to glycosylate ubiquitin and its mutant A28C forming two protein scaffolds with high affinity for BambL, a lectin from the human pathogen Burkholderia ambifaria. A new fucoside analogue, with high affinity with BambL, firstly synthetized and co-crystallized with the protein target, provided the insights for sugar determinants grafting onto ubiquitin. Three ubiquitin-based glycosides were thus assembled. Fuc-Ub, presented several copies of the fucoside analogue, with proper geometry for multivalent effect; Rha-A28C, displayed one thio-rhamnose, known for its ability to tuning the immunological response; finally, Fuc-Rha-A28C, included both multiple fucoside analogs and the rhamnose residue. Fuc-Ub and Fuc-Rha-A28C ligands proved high affinity for BambL and unprecedented immune modulatory properties towards macrophages activation.
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Affiliation(s)
| | - Linda Cerofolini
- CIRMMP, University of Florence via Sacconi, 6 50019 Sesto F.no FI Italy
| | - Sabrina Santarsia
- Università di Firenze, Department of Chemistry via della Lastruccia, 3, 13, 50019 Sesto F.no FI Italy
| | - Emilie Gillon
- Université Grenoble Alpes, CNRS, CERMAV 38000 Grenoble France
| | - Silvia Fallarini
- Università del Piemonte Orientale, Department of Pharmaceutical Sciences 28100 Novara Italy
| | - Grazia Lombardi
- Università del Piemonte Orientale, Department of Pharmaceutical Sciences 28100 Novara Italy
| | - Maxime Denis
- Università di Firenze, Department of Chemistry via della Lastruccia, 3, 13, 50019 Sesto F.no FI Italy .,Giotto Biotech via Madonna del Piano, 6, 50019 Sesto F.no FI Italy
| | - Stefano Giuntini
- Università di Firenze, Department of Chemistry via della Lastruccia, 3, 13, 50019 Sesto F.no FI Italy .,CERM via Sacconi, 6, 50019 Sesto F.no FI Italy
| | - Carolina Valori
- Università di Firenze, Department of Chemistry via della Lastruccia, 3, 13, 50019 Sesto F.no FI Italy
| | - Marco Fragai
- Università di Firenze, Department of Chemistry via della Lastruccia, 3, 13, 50019 Sesto F.no FI Italy .,CERM via Sacconi, 6, 50019 Sesto F.no FI Italy
| | - Anne Imberty
- Université Grenoble Alpes, CNRS, CERMAV 38000 Grenoble France
| | - Alessandro Dondoni
- Interdisciplinary Center for the Study of Inflammation, University of Ferrara 44121 Ferrara Italy
| | - Cristina Nativi
- Università di Firenze, Department of Chemistry via della Lastruccia, 3, 13, 50019 Sesto F.no FI Italy
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15
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Bege M, Bereczki I, Molnár DJ, Kicsák M, Pénzes-Daku K, Bereczky Z, Ferenc G, Kovács L, Herczegh P, Borbás A. Synthesis and oligomerization of cysteinyl nucleosides. Org Biomol Chem 2020; 18:8161-8178. [PMID: 33020786 DOI: 10.1039/d0ob01890b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Nucleoside and nucleic acid analogues are known to possess a considerable therapeutic potential. In this work, by coupling cysteine to nucleosides, we successfully synthesized compounds that may not only have interesting biological properties in their monomeric form, but can be used beyond that, for oligomerization, in order to produce new types of synthetic nucleic acids. We elaborated different strategies for the synthesis of cysteinyl nucleosides as monomers of cysteinyl nucleic acids using nucleophilic substitution or thiol-ene coupling as a synthetic tool, and utilised on two complementary nucleosides, uridine and adenosine. Dipeptidyl dinucleosides and pentameric cysteinyl uridine were prepared from the monomeric building blocks, which are the first members of a new class of peptide nucleic acids containing the entire ribofuranosyl nucleoside units bound to the peptide backbone.
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Affiliation(s)
- Miklós Bege
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, H-4032, Hungary. and Doctoral School of Pharmaceutical Sciences, University of Debrecen, Debrecen, H-4032, Hungary and MTA-DE Molecular Recognition and Interaction Research Group, University of Debrecen, Debrecen, H-4032, Hungary
| | - Ilona Bereczki
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, H-4032, Hungary.
| | - Dénes J Molnár
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, H-4032, Hungary.
| | - Máté Kicsák
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, H-4032, Hungary.
| | - Krisztina Pénzes-Daku
- Division of Clinical Laboratory Science, University of Debrecen, Debrecen, H-4032, Hungary
| | - Zsuzsanna Bereczky
- Division of Clinical Laboratory Science, University of Debrecen, Debrecen, H-4032, Hungary
| | - Györgyi Ferenc
- Nucleic Acid Synthesis Laboratory, Biological Research Center, Szeged, H-6726, Hungary
| | - Lajos Kovács
- Nucleic Acids Laboratory, Department of Medicinal Chemistry, University of Szeged, H-6720 Szeged, Hungary
| | - Pál Herczegh
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, H-4032, Hungary.
| | - Anikó Borbás
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, H-4032, Hungary.
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16
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Naya M, Sato C. Pyrene Excimer-Based Fluorescent Labeling of Cysteines Brought into Close Proximity by Protein Dynamics: ASEM-Induced Thiol-Ene Click Reaction for High Spatial Resolution CLEM. Int J Mol Sci 2020; 21:E7550. [PMID: 33066147 PMCID: PMC7589919 DOI: 10.3390/ijms21207550] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/02/2020] [Accepted: 10/08/2020] [Indexed: 12/16/2022] Open
Abstract
Fluorescence microscopy (FM) has revealed vital molecular mechanisms of life. Mainly, molecules labeled by fluorescent probes are imaged. However, the diversity of labeling probes and their functions remain limited. We synthesized a pyrene-based fluorescent probe targeting SH groups, which are important for protein folding and oxidative stress sensing in cells. The labeling achieved employs thiol-ene click reactions between the probes and SH groups and is triggered by irradiation by UV light or an electron beam. When two tagged pyrene groups were close enough to be excited as a dimer (excimer), they showed red-shifted fluorescence; theoretically, the proximity of two SH residues within ~30 Å can thus be monitored. Moreover, correlative light/electron microscopy (CLEM) was achieved using our atmospheric scanning electron microscope (ASEM); radicals formed in liquid by the electron beam caused the thiol-ene click reactions, and excimer fluorescence of the labeled proteins in cells and tissues was visualized by FM. Since the fluorescent labeling is induced by a narrow electron beam, high spatial resolution labeling is expected. The method can be widely applied to biological fields, for example, to study protein dynamics with or without cysteine mutagenesis, and to beam-induced micro-fabrication and the precise post-modification of materials.
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Affiliation(s)
- Masami Naya
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8566, Japan;
| | - Chikara Sato
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8566, Japan;
- Master’s and Doctoral Programs in Neuroscience, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba 305-8574, Japan
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17
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Choi H, Kim M, Jang J, Hong S. Visible‐Light‐Induced Cysteine‐Specific Bioconjugation: Biocompatible Thiol–Ene Click Chemistry. Angew Chem Int Ed Engl 2020; 59:22514-22522. [DOI: 10.1002/anie.202010217] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Hangyeol Choi
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
| | - Myojeong Kim
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
| | - Jaebong Jang
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
| | - Sungwoo Hong
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
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18
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Choi H, Kim M, Jang J, Hong S. Visible‐Light‐Induced Cysteine‐Specific Bioconjugation: Biocompatible Thiol–Ene Click Chemistry. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010217] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Hangyeol Choi
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
| | - Myojeong Kim
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
| | - Jaebong Jang
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
| | - Sungwoo Hong
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
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19
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Abstract
From a selection of research topics carried out in our laboratory during the last twenty years it becomes apparent that our main target was the discovery of new or improved synthetic methods together with new properties. Our efforts were made with the aim of being of some utility to other fields of research, with particular emphasis to glycobiology and heterocyle-based bioorganic chemistry. We performed new chemistry mainly in the field of carbohydrate manipulations taking as a primary rule the simplicity and efficiency manners. Toward this end, modern synthetic tools and approaches were employed such as heterocyle-based transformations, multicomponent reactions, organocatalysis, click azide–alkyne cycloadditions, reactions in ionic liquids, click photoinduced thiol-ene coupling, and click sulfur–fluoride exchange chemistry. With these potent methodologies in hand, the syntheses of carbohydrate containing amino acids up to proteins glycosylation were performed.1 Heterocyclic Glycoconjugates and Amino Acids2 Triazole-Linked Oligonucleotides: Application of Click CuAAC3 Non-Natural Glycosyl Amino Acids4 Non-Natural Oligosaccharides5 Calixarene-Based Glycoclusters6 Carbohydrate-Based Building Blocks7 Homoazasugars and Aza-C-disaccharides8 Synthesis of Glycodendrimers9 Peptide and Protein Glycoconjugates10 Conclusions
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20
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Denis M, Softley C, Giuntini S, Gentili M, Ravera E, Parigi G, Fragai M, Popowicz G, Sattler M, Luchinat C, Cerofolini L, Nativi C. The Photocatalyzed Thiol-ene reaction: A New Tag to Yield Fast, Selective and reversible Paramagnetic Tagging of Proteins. Chemphyschem 2020; 21:863-869. [PMID: 32092218 PMCID: PMC7384118 DOI: 10.1002/cphc.202000071] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/21/2020] [Indexed: 11/18/2022]
Abstract
Paramagnetic restraints have been used in biomolecular NMR for the last three decades to elucidate and refine biomolecular structures, but also to characterize protein-ligand interactions. A common technique to generate such restraints in proteins, which do not naturally contain a (paramagnetic) metal, consists in the attachment to the protein of a lanthanide-binding-tag (LBT). In order to design such LBTs, it is important to consider the efficiency and stability of the conjugation, the geometry of the complex (conformational exchanges and coordination) and the chemical inertness of the ligand. Here we describe a photo-catalyzed thiol-ene reaction for the cysteine-selective paramagnetic tagging of proteins. As a model, we designed an LBT with a vinyl-pyridine moiety which was used to attach our tag to the protein GB1 in fast and irreversible fashion. Our tag T1 yields magnetic susceptibility tensors of significant size with different lanthanides and has been characterized using NMR and relaxometry measurements.
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Affiliation(s)
- Maxime Denis
- Giotto Biotech, S.R.LVia Madonna del piano 650019Sesto Fiorentino (FI)Italy
- Department of Chemistry “Ugo Schiff”University of FlorenceVia della Lastruccia 350019Sesto Fiorentino (FI), Italy
| | - Charlotte Softley
- Biomolecular NMR, Department ChemieTechnical University of MunichLichtenbergstrasse 485747GarchingGermany
- Institute of Structural BiologyHelmholtz Center MunichNeuherbergGermany
| | - Stefano Giuntini
- Department of Chemistry “Ugo Schiff”University of FlorenceVia della Lastruccia 350019Sesto Fiorentino (FI), Italy
- Magnetic Resonance Center (CERM)University of Florence, and Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (C.I.R.M.M.P)Via L. Sacconi 650019Sesto FIorentino (FI)Italy
| | - Matteo Gentili
- Giotto Biotech, S.R.LVia Madonna del piano 650019Sesto Fiorentino (FI)Italy
| | - Enrico Ravera
- Magnetic Resonance Center (CERM)University of Florence, and Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (C.I.R.M.M.P)Via L. Sacconi 650019Sesto FIorentino (FI)Italy
| | - Giacomo Parigi
- Department of Chemistry “Ugo Schiff”University of FlorenceVia della Lastruccia 350019Sesto Fiorentino (FI), Italy
- Magnetic Resonance Center (CERM)University of Florence, and Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (C.I.R.M.M.P)Via L. Sacconi 650019Sesto FIorentino (FI)Italy
| | - Marco Fragai
- Department of Chemistry “Ugo Schiff”University of FlorenceVia della Lastruccia 350019Sesto Fiorentino (FI), Italy
- Magnetic Resonance Center (CERM)University of Florence, and Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (C.I.R.M.M.P)Via L. Sacconi 650019Sesto FIorentino (FI)Italy
| | - Grzegorz Popowicz
- Institute of Structural BiologyHelmholtz Center MunichNeuherbergGermany
| | - Michael Sattler
- Biomolecular NMR, Department ChemieTechnical University of MunichLichtenbergstrasse 485747GarchingGermany
- Institute of Structural BiologyHelmholtz Center MunichNeuherbergGermany
| | - Claudio Luchinat
- Department of Chemistry “Ugo Schiff”University of FlorenceVia della Lastruccia 350019Sesto Fiorentino (FI), Italy
- Magnetic Resonance Center (CERM)University of Florence, and Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (C.I.R.M.M.P)Via L. Sacconi 650019Sesto FIorentino (FI)Italy
| | - Linda Cerofolini
- Magnetic Resonance Center (CERM)University of Florence, and Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (C.I.R.M.M.P)Via L. Sacconi 650019Sesto FIorentino (FI)Italy
| | - Cristina Nativi
- Department of Chemistry “Ugo Schiff”University of FlorenceVia della Lastruccia 350019Sesto Fiorentino (FI), Italy
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21
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Reddy NC, Kumar M, Molla R, Rai V. Chemical methods for modification of proteins. Org Biomol Chem 2020; 18:4669-4691. [DOI: 10.1039/d0ob00857e] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The field of protein bioconjugation draws attention from stakeholders in chemistry, biology, and medicine. This review provides an overview of the present status, challenges, and opportunities for organic chemists.
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Affiliation(s)
- Neelesh C. Reddy
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- India
| | - Mohan Kumar
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- India
| | - Rajib Molla
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- India
| | - Vishal Rai
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- India
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22
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Sánchez-Fernández EM, García-Moreno MI, García-Hernández R, Padrón JM, García Fernández JM, Gamarro F, Ortiz Mellet C. Thiol-ene "Click" Synthesis and Pharmacological Evaluation of C-Glycoside sp 2-Iminosugar Glycolipids. Molecules 2019; 24:E2882. [PMID: 31398901 PMCID: PMC6720825 DOI: 10.3390/molecules24162882] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/05/2019] [Accepted: 08/07/2019] [Indexed: 12/30/2022] Open
Abstract
The unique stereoelectronic properties of sp2-iminosugars enable their participation in glycosylation reactions, thereby behaving as true carbohydrate chemical mimics. Among sp2-iminosugar conjugates, the sp2-iminosugar glycolipids (sp2-IGLs) have shown a variety of interesting pharmacological properties ranging from glycosidase inhibition to antiproliferative, antiparasitic, and anti-inflammatory activities. Developing strategies compatible with molecular diversity-oriented strategies for structure-activity relationship studies was therefore highly wanted. Here we show that a reaction sequence consisting in stereoselective C-allylation followed by thiol-ene "click" coupling provides a very convenient access to α-C-glycoside sp2-IGLs. Both the glycone moiety and the aglycone tail can be modified by using sp2-iminosugar precursors with different configurational profiles (d-gluco or d-galacto in this work) and varied thiols, as well as by oxidation of the sulfide adducts (to the corresponding sulfones in this work). A series of derivatives was prepared in this manner and their glycosidase inhibitory, antiproliferative and antileishmanial activities were evaluated in different settings. The results confirm that the inhibition of glycosidases, particularly α-glucosidase, and the antitumor/leishmanicidal activities are unrelated. The data are also consistent with the two later activities arising from the ability of the sp2-IGLs to interfere in the immune system response in a cell line and cell context dependent manner.
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Affiliation(s)
- Elena M Sánchez-Fernández
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/Profesor García González 1, 41012 Seville, Spain.
| | - M Isabel García-Moreno
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/Profesor García González 1, 41012 Seville, Spain
| | - Raquel García-Hernández
- Instituto de Parasitología y Biomedicina "López-Neyra", IPBLN-CSIC, Parque Tecnológico de Ciencias de la Salud, 18016 Granada, Spain
| | - José M Padrón
- BioLab, Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Centro de Investigaciones Biomédicas de Canarias (CIBCAN), Universidad de La Laguna, 38206 La Laguna, Spain
| | - José M García Fernández
- Instituto de Investigaciones Químicas (IIQ), CSIC - University of Sevilla, Avda. Américo Vespucio 49, 41092 Sevilla, Spain
| | - Francisco Gamarro
- Instituto de Parasitología y Biomedicina "López-Neyra", IPBLN-CSIC, Parque Tecnológico de Ciencias de la Salud, 18016 Granada, Spain
| | - Carmen Ortiz Mellet
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/Profesor García González 1, 41012 Seville, Spain.
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23
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Petracca R, Bowen KA, McSweeney L, O'Flaherty S, Genna V, Twamley B, Devocelle M, Scanlan EM. Chemoselective Synthesis of N-Terminal Cysteinyl Thioesters via β,γ-C,S Thiol-Michael Addition. Org Lett 2019; 21:3281-3285. [PMID: 31017793 DOI: 10.1021/acs.orglett.9b01013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dehydroalanine (ΔAla) is a highly electrophilic residue that can react efficiently with sulfur nucleophiles to furnish cysteinyl analogues. Herein, we report an efficient synthesis of N-terminal cysteinyl thioesters, suitable for S, N-acyl transfer, based on β,γ-C,S thiol-Michael addition. Both ionic and radical-based methodologies were found to be efficient for this process.
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Affiliation(s)
- Rita Petracca
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI) , Trinity College Dublin, The University of Dublin , Dublin 2 , Ireland
| | - Katherine A Bowen
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI) , Trinity College Dublin, The University of Dublin , Dublin 2 , Ireland
| | - Lauren McSweeney
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI) , Trinity College Dublin, The University of Dublin , Dublin 2 , Ireland
| | - Siobhan O'Flaherty
- Department of Chemistry , Royal College of Surgeons in Ireland (RCSI) , Dublin , Ireland
| | - Vito Genna
- Institute for Research in Biomedicine (IRB Barcelona) , The Barcelona Institute of Science and Technology , Joint IRB-BSC Program in Computational Biology, Baldiri-Reixac 10-12 , 08028 Barcelona , Spain
| | - Brendan Twamley
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI) , Trinity College Dublin, The University of Dublin , Dublin 2 , Ireland
| | - Marc Devocelle
- Department of Chemistry , Royal College of Surgeons in Ireland (RCSI) , Dublin , Ireland
| | - Eoin M Scanlan
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI) , Trinity College Dublin, The University of Dublin , Dublin 2 , Ireland
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24
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Abstract
The bioorthogonal reaction toolbox contains approximately two-dozen unique chemistries that permit selective tagging and probing of biomolecules. Over the past two decades, significant effort has been devoted to optimizing and discovering bioorthogonal reagents that are faster, fluorogenic, and orthogonal to the already existing bioorthogonal repertoire. Conversely, efforts to explore bioorthogonal reagents whose reactivity can be controlled in space and/or time are limited. The "activatable" bioorthogonal reagents that do exist are often unimodal, meaning that their reagent's activation method cannot be easily modified to enable activation with red-shifted wavelengths, enzymes, or metabolic-byproducts and ions like H2O2 or Fe3+. Here, we summarize the available activatable bioorthogonal reagents with a focus on our recent addition: modular caged cyclopropenes. We designed caged cyclopropenes to be unreactive to their bioorthogonal partner until they are activated through the removal of the cage by light, an enzyme, or another reaction partner. To accomplish this, their structure includes a nitrogen atom at the cyclopropene C3 position that is decorated with the desired caging group through a carbamate linkage. This 3-N cyclopropene system can allow control of cyclopropene reactivity using a multitude of already available photo- and enzyme-caging groups. Additionally, this cyclopropene scaffold can enable metabolic-byproduct or ion activation of bioorthogonal reactions.
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Affiliation(s)
- Pratik Kumar
- Department of Chemistry, Stony Brook University, Stony Brook, NY, United States
| | - Scott T Laughlin
- Department of Chemistry, Stony Brook University, Stony Brook, NY, United States; Institute of Chemical Biology and Drug Discovery, Stony Brook University, Stony Brook, NY, United States.
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25
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Montoir D, Amoura M, Ababsa ZEA, Vishwanatha TM, Yen-Pon E, Robert V, Beltramo M, Piller V, Alami M, Aucagne V, Messaoudi S. Synthesis of aryl-thioglycopeptides through chemoselective Pd-mediated conjugation. Chem Sci 2018; 9:8753-8759. [PMID: 30627396 PMCID: PMC6295873 DOI: 10.1039/c8sc02370k] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 09/18/2018] [Indexed: 12/17/2022] Open
Abstract
We describe herein a Pd-catalyzed methodology for the thioglycoconjugation of iodoaryl peptides and aminoacids. This operationally simple process occurs under semi-aqueous conditions and displays wide substrate scope. The strategy has been successfully applied to both the thioglycosylation of unprotected peptides and the generation of thioglyco-aminoacid building blocks, including those suitable for solid phase peptide synthesis. To demonstrate the broad potential of this technique for late stage functionalization, we successfully incorporated challenging unprotected β-S-GlcNAc- and α-S-GalNAc-derivatives into very long unprotected peptides. This study opens the way to new applications in chemical biology, considering the well-recognized advantages of S-glycosides over O-glycosides in terms of resistance towards both enzymatic and chemical degradation.
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Affiliation(s)
- David Montoir
- BioCIS , Univ. Paris-Sud , CNRS , Univ. Paris-Saclay , Châtenay-Malabry , France . ; Tel: +33 0146835887
| | - Mehdi Amoura
- Centre de Biophysique Moléculaire , CNRS , Orléans , France . ; Tel: +33 0238255577
| | - Zine El Abidine Ababsa
- BioCIS , Univ. Paris-Sud , CNRS , Univ. Paris-Saclay , Châtenay-Malabry , France . ; Tel: +33 0146835887
| | - T M Vishwanatha
- Centre de Biophysique Moléculaire , CNRS , Orléans , France . ; Tel: +33 0238255577
| | - Expédite Yen-Pon
- BioCIS , Univ. Paris-Sud , CNRS , Univ. Paris-Saclay , Châtenay-Malabry , France . ; Tel: +33 0146835887
| | - Vincent Robert
- UMR Physiologie de la Reproduction et des Comportements , INRA , CNRS , Univ. Tours , IFCE , Nouzilly , France
| | - Massimiliano Beltramo
- UMR Physiologie de la Reproduction et des Comportements , INRA , CNRS , Univ. Tours , IFCE , Nouzilly , France
| | - Véronique Piller
- Centre de Biophysique Moléculaire , CNRS , Orléans , France . ; Tel: +33 0238255577
| | - Mouad Alami
- BioCIS , Univ. Paris-Sud , CNRS , Univ. Paris-Saclay , Châtenay-Malabry , France . ; Tel: +33 0146835887
| | - Vincent Aucagne
- Centre de Biophysique Moléculaire , CNRS , Orléans , France . ; Tel: +33 0238255577
| | - Samir Messaoudi
- BioCIS , Univ. Paris-Sud , CNRS , Univ. Paris-Saclay , Châtenay-Malabry , France . ; Tel: +33 0146835887
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26
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Marra A, Dong J, Ma T, Giuntini S, Crescenzo E, Cerofolini L, Martinucci M, Luchinat C, Fragai M, Nativi C, Dondoni A. Protein Glycosylation through Sulfur Fluoride Exchange (SuFEx) Chemistry: The Key Role of a Fluorosulfate Thiolactoside. Chemistry 2018; 24:18981-18987. [PMID: 30252969 DOI: 10.1002/chem.201803912] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/23/2018] [Indexed: 11/09/2022]
Abstract
Protein glycosylation is the most complex post-translational modification process. More than 50 % of human cells proteins are glycosylated, whereas bacteria such as E. coli do not have this modification machinery. Indeed, the carbohydrate residues in natural proteins affect their folding, immunogenicity, and stability toward proteases, besides controlling biological properties and activities. It is therefore important to introduce such structural modification in bioengineered proteins lacking the presence of carbohydrate residues. This is not trivial as it requires reagents and conditions compatible with the protein's stability and reactivity. This work reports on the introduction of lactose moieties in two natural proteins, namely ubiquitin (Ub) and l-asparaginase II (ANSII). The synthetic route employed is based on the sulfur(VI) fluoride exchange (SuFEx) coupling of a lactose tethered arylfluorosulfate (Lact-Ar-OSO2 F) with the ϵ-NH2 group of lysine residues of the proteins. This metal-free click SuFEx reaction relies on the properties of the fluorosulfate employed, which is easily prepared in multigram scale from available precursors and reacts chemoselectively with the ϵ-NH2 group of lysine residues under mild conditions. Thus, iterative couplings of Lact-Ar-OSO2 F to Ub and ANSII, afforded multiple glycosylations of these proteins so that up to three and four Lact-Ar-OSO2 groups were introduced in Ub and ANSII, respectively, via the formation of a sulfamoyl (OSO2 -NH) linkage.
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Affiliation(s)
- Alberto Marra
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, Université de Montpellier, CNRS, Ecole Nationale Supérieure de Chimie de Montpellier, 8 Rue de l'Ecole Normale, 34296, Montpellier- cedex 5, France
| | - Jiajia Dong
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Tiancheng Ma
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Stefano Giuntini
- Department of Chemistry, University of Florence, via della Lastruccia, 3-13, Sesto F.no (FI), 50019, Italy.,CERM and CIRMMP, via Luigi Sacconi, 6, 50019, Sesto F.no (FI), Italy
| | - Elisa Crescenzo
- Department of Chemistry, University of Florence, via della Lastruccia, 3-13, Sesto F.no (FI), 50019, Italy.,CERM and CIRMMP, via Luigi Sacconi, 6, 50019, Sesto F.no (FI), Italy
| | - Linda Cerofolini
- Department of Chemistry, University of Florence, via della Lastruccia, 3-13, Sesto F.no (FI), 50019, Italy.,CERM and CIRMMP, via Luigi Sacconi, 6, 50019, Sesto F.no (FI), Italy
| | - Marco Martinucci
- Department of Chemistry, University of Florence, via della Lastruccia, 3-13, Sesto F.no (FI), 50019, Italy
| | - Claudio Luchinat
- Department of Chemistry, University of Florence, via della Lastruccia, 3-13, Sesto F.no (FI), 50019, Italy.,CERM and CIRMMP, via Luigi Sacconi, 6, 50019, Sesto F.no (FI), Italy
| | - Marco Fragai
- Department of Chemistry, University of Florence, via della Lastruccia, 3-13, Sesto F.no (FI), 50019, Italy.,CERM and CIRMMP, via Luigi Sacconi, 6, 50019, Sesto F.no (FI), Italy
| | - Cristina Nativi
- Department of Chemistry, University of Florence, via della Lastruccia, 3-13, Sesto F.no (FI), 50019, Italy
| | - Alessandro Dondoni
- Interdisciplinary Center for the Study of Inflammation, University of, Ferrara, Italy
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27
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Robidillo CJT, Aghajamali M, Faramus A, Sinelnikov R, Veinot JGC. Interfacing enzymes with silicon nanocrystals through the thiol-ene reaction. NANOSCALE 2018; 10:18706-18719. [PMID: 30270384 DOI: 10.1039/c8nr05368e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This study reports the preparation of functional bioinorganic hybrids, through application of the thiol-ene reaction, that exhibit catalytic activity and photoluminescent properties from enzymes and freestanding silicon nanocrystals. Thermal hydrosilylation of 1,7-octadiene and alkene-terminated poly(ethylene oxide)methyl ether with hydride-terminated silicon nanocrystals afforded nanocrystals functionalized with alkene residues and poly(ethylene oxide) moieties. These silicon nanocrystals were conjugated with representative enzymes through the photochemical thiol-ene reaction to afford bioinorganic hybrids that are dispersible and photostable in buffer, and that exhibit photoluminescence (λmax = 630 nm) and catalytic activity. They were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), dynamic light scattering analysis (DLS), absorption spectroscopy, steady-state and time-resolved photoluminescence spectroscopy, and pertinent enzyme activity assays. The general derivatization approach presented for interfacing enzymes with biocompatible silicon nanocrystals has far reaching implications for many applications ranging from sensors to therapeutic agents. The bioinorganic hybrids presented herein have potential applications in the chemical detection of nitrophenyl esters and urea. They can also be employed in enzyme-based theranostics as they combine long-lived silicon nanocrystal photoluminescence with substrate-specific enzymatic activity.
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28
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Yu J, Yang X, Sun Y, Yin Z. Highly Reactive and Tracelessly Cleavable Cysteine‐Specific Modification of Proteins via 4‐Substituted Cyclopentenone. Angew Chem Int Ed Engl 2018; 57:11598-11602. [DOI: 10.1002/anie.201804801] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 06/12/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Jian Yu
- Center of Basic Molecular Science (CBMS)Department of ChemistryTsinghua University Beijing 100084 China
| | - Xiaoyue Yang
- Center of Basic Molecular Science (CBMS)Department of ChemistryTsinghua University Beijing 100084 China
| | - Yang Sun
- Center of Basic Molecular Science (CBMS)Department of ChemistryTsinghua University Beijing 100084 China
| | - Zheng Yin
- Center of Basic Molecular Science (CBMS)Department of ChemistryTsinghua University Beijing 100084 China
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29
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Ramírez-Andersen HS, Behrens C, Buchardt J, Fels JJ, Folkesson CG, Jianhe C, Nørskov-Lauritsen L, Nielsen PF, Reslow M, Rischel C, Su J, Thygesen P, Wiberg C, Zhao X, Wenjuan X, Johansen NL. Long-Acting Human Growth Hormone Analogue by Noncovalent Albumin Binding. Bioconjug Chem 2018; 29:3129-3143. [DOI: 10.1021/acs.bioconjchem.8b00463] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
| | | | - Jens Buchardt
- Novo Nordisk A/S Global Research, DK-2760 Maaloev, Denmark
| | | | | | - Chen Jianhe
- Novo Nordisk Research Center China, 20 Life Science Park Road, Changping District, Beijing 102206, China
| | | | - Per F. Nielsen
- Novo Nordisk A/S Global Research, DK-2760 Maaloev, Denmark
| | - Mats Reslow
- Novo Nordisk A/S Global Research, DK-2760 Maaloev, Denmark
| | | | - Jing Su
- Novo Nordisk Research Center China, 20 Life Science Park Road, Changping District, Beijing 102206, China
| | - Peter Thygesen
- Novo Nordisk A/S Global Research, DK-2760 Maaloev, Denmark
| | | | - Xin Zhao
- Novo Nordisk Research Center China, 20 Life Science Park Road, Changping District, Beijing 102206, China
| | - Xia Wenjuan
- Novo Nordisk Research Center China, 20 Life Science Park Road, Changping District, Beijing 102206, China
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30
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Yu J, Yang X, Sun Y, Yin Z. Highly Reactive and Tracelessly Cleavable Cysteine-Specific Modification of Proteins via 4-Substituted Cyclopentenone. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jian Yu
- Center of Basic Molecular Science (CBMS); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Xiaoyue Yang
- Center of Basic Molecular Science (CBMS); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Yang Sun
- Center of Basic Molecular Science (CBMS); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Zheng Yin
- Center of Basic Molecular Science (CBMS); Department of Chemistry; Tsinghua University; Beijing 100084 China
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31
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Shi X, Liu Y, Zhao R, Li Z. Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation. J Vis Exp 2018. [PMID: 30124641 DOI: 10.3791/57356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Here, we describe a detailed protocol for the preparation of thioether-tethered peptides using on-resin intramolecular/intermolecular thiol-ene hydrothiolation. In addition, this protocol describes the preparation of vinyl-sulfide-tethered peptides using in-solution intramolecular thiol-yne hydrothiolation between amino acids that possess alkene/alkyne side chains and cysteine residues at i, i+4 positions. Linear peptides were synthesized using a standard Fmoc-based solid-phase peptide synthesis (SPPS). Thiol-ene hydrothiolation is carried out using either an intramolecular thio-ene reaction or an intermolecular thio-ene reaction, depending on the peptide length. In this research, an intramolecular thio-ene reaction is carried out in the case of shorter peptides using on-resin deprotection of the trityl groups of cysteine residues following the complete synthesis of the linear peptide. The resin is then set to UV irradiation using photoinitiator 4-methoxyacetophenone (MAP) and 2-hydroxy-1-[4-(2-hydroxyethoxy)-phenyl]-2-methyl-1-propanone (MMP). The intermolecular thiol-ene reaction is carried out by dissolving Fmoc-Cys-OH in an N,N-dimethylformamide (DMF) solvent. This is then reacted with the peptide using the alkene-bearing residue on resin. After that, the macrolactamization is carried out using benzotriazole-1-yl-oxytripyrrolidinophosphonium hexafluorophosphate (PyBop), 1-hydroxybenzotriazole (HoBt), and 4-Methylmorpholine (NMM) as activation reagents on the resin. Following the macrolactamization, the peptide synthesis is continued using standard SPPS. In the case of the thio-yne hydrothiolation, the linear peptide is cleaved from the resin, dried, and subsequently dissolved in degassed DMF. This is then irradiated using UV light with photoinitiator 2,2-dimethoxy-2-phenylacetophenone (DMPA). Following the reaction, DMF is evaporated and the crude residue is precipitated and purified using high-performance liquid chromatography (HPLC). These methods could function to simplify the generation of thioether-tethered cyclic peptides due to the use of the thio-ene/yne click chemistry that possesses superior functional group tolerance and good yield. The introduction of thioether bonds into peptides takes advantage of the nucleophilic nature of cysteine residues and is redox-inert relative to disulfide bonds.
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Affiliation(s)
- Xiaodong Shi
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School
| | - Yinghuan Liu
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School
| | - Rongtong Zhao
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School
| | - Zigang Li
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School;
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32
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Li L, Lu C, Wang L, Chen M, White J, Hao X, McLean KM, Chen H, Hughes TC. Gelatin-Based Photocurable Hydrogels for Corneal Wound Repair. ACS APPLIED MATERIALS & INTERFACES 2018; 10:13283-13292. [PMID: 29620862 DOI: 10.1021/acsami.7b17054] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this study, an injectable, photocurable gelatin system, consisting of acrylated gelatin and thiolated gelatin, with tunable mechanical, biodegradation, and biological properties was used as a potential cell-supportive scaffold for the repair of focal corneal wounds. The mechanical property of hydrogels can be readily modified (postcure shear modulus of between 0.3 and 22 kPa) by varying the ratio of acrylate to thiol groups, photointensity, and solid content, and the biodegradation times also varied with the change of solid content. More importantly, the generated hydrogels exhibited excellent cell viability in both cell seeding and cell encapsulation experiments. Furthermore, the hydrogels were found to be biocompatible with rabbit cornea and aided the regeneration of a new tissue under a focal corneal wound (exhibiting epithelial wound coverage in <3d), and ultraviolet irradiation did not have any obvious harmful effect on the cornea and posterior eye segment tissues. Along with their injectability and tunable mechanical properties, the photocurable thiol-acrylate hydrogels showed promise as corneal substitutes or substrates to construct a new corneal tissue.
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Affiliation(s)
- Lingli Li
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou , Zhejiang Province 325000 , PRC
- Wenzhou Institute of Biomaterials and Engineering , Wenzhou , Zhejiang Province 325001 , PRC
| | - Conglie Lu
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou , Zhejiang Province 325000 , PRC
| | - Lei Wang
- Wenzhou Institute of Biomaterials and Engineering , Wenzhou , Zhejiang Province 325001 , PRC
| | - Mei Chen
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou , Zhejiang Province 325000 , PRC
| | - Jacinta White
- CSIRO Manufacturing , Clayton , Victoria 3169 , Australia
| | - Xiaojuan Hao
- CSIRO Manufacturing , Clayton , Victoria 3169 , Australia
| | - Keith M McLean
- CSIRO Manufacturing , Clayton , Victoria 3169 , Australia
| | - Hao Chen
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou , Zhejiang Province 325000 , PRC
- Wenzhou Institute of Biomaterials and Engineering , Wenzhou , Zhejiang Province 325001 , PRC
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33
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Bao C, Yin Y, Zhang Q. Synthesis and Assembly of Laccase-Polymer Giant Amphiphiles by Self-Catalyzed CuAAC Click Chemistry. Biomacromolecules 2018; 19:1539-1551. [PMID: 29562131 DOI: 10.1021/acs.biomac.8b00087] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Covalent coupling of hydrophobic polymers to the exterior of hydrophilic proteins would mediate unique macroscopic assembly of bioconjugates to generate amphiphilic superstructures as novel nanoreactors or biocompatible drug delivery systems. The main objective of this study was to develop a novel strategy for the synthesis of protein-polymer giant amphiphiles by the combination of copper-mediated living radical polymerization and azide-alkyne cycloaddition reaction (CuAAC). Azide-functionalized succinimidyl ester was first synthesized for the facile introduction of azide groups to proteins such as albumin from bovine serum (BSA) and laccase from Trametes versicolor. Alkyne-terminal polymers with varied hydrophobicity were synthesized by using commercial copper wire as the activators from a trimethylsilyl protected alkyne-functionalized initiator in DMSO under ambient temperature. The conjugation of alkyne-functionalized polymers to the azide-functionalized laccase could be conducted even without additional copper catalyst, which indicated a successful self-catalyzed CuAAC reaction. The synthesized amphiphiles were found to aggregate into spherical nanoparticles in water and showed strong relevance to the hydrophobicity of coupled polymers. The giant amphiphiles showed decreased enzyme activity yet better stability during storage after chemical modification and self-assembly. These findings will deepen our understanding on protein folding, macroscopic self-assembly, and support potential applications in bionanoreactor, enzyme immobilization, and water purification.
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34
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Ziaco M, Górska S, Traboni S, Razim A, Casillo A, Iadonisi A, Gamian A, Corsaro MM, Bedini E. Development of Clickable Monophosphoryl Lipid A Derivatives toward Semisynthetic Conjugates with Tumor-Associated Carbohydrate Antigens. J Med Chem 2017; 60:9757-9768. [DOI: 10.1021/acs.jmedchem.7b01234] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Marcello Ziaco
- Department
of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, I-80126 Napoli, Italy
| | - Sabina Górska
- L. Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Serena Traboni
- Department
of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, I-80126 Napoli, Italy
| | - Agnieszka Razim
- L. Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Angela Casillo
- Department
of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, I-80126 Napoli, Italy
| | - Alfonso Iadonisi
- Department
of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, I-80126 Napoli, Italy
| | - Andrzej Gamian
- L. Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Maria Michela Corsaro
- Department
of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, I-80126 Napoli, Italy
| | - Emiliano Bedini
- Department
of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, I-80126 Napoli, Italy
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35
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Yang A, Cho K, Park HS. Chemical biology approaches for studying posttranslational modifications. RNA Biol 2017; 15:427-440. [PMID: 28901832 DOI: 10.1080/15476286.2017.1360468] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Posttranslational modification (PTM) is a key mechanism for regulating diverse protein functions, and thus critically affects many essential biological processes. Critical for systematic study of the effects of PTMs is the ability to obtain recombinant proteins with defined and homogenous modifications. To this end, various synthetic and chemical biology approaches, including genetic code expansion and protein chemical modification methods, have been developed. These methods have proven effective for generating site-specific authentic modifications or structural mimics, and have demonstrated their value for in vitro and in vivo functional studies of diverse PTMs. This review will discuss recent advances in chemical biology strategies and their application to various PTM studies.
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Affiliation(s)
- Aerin Yang
- a Department of Chemistry , Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Yuseong-gu , Daejeon , Republic of Korea
| | - Kyukwang Cho
- a Department of Chemistry , Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Yuseong-gu , Daejeon , Republic of Korea
| | - Hee-Sung Park
- a Department of Chemistry , Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Yuseong-gu , Daejeon , Republic of Korea
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36
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Ariyasu S, Hayashi H, Xing B, Chiba S. Site-Specific Dual Functionalization of Cysteine Residue in Peptides and Proteins with 2-Azidoacrylates. Bioconjug Chem 2017; 28:897-902. [DOI: 10.1021/acs.bioconjchem.7b00024] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shinya Ariyasu
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 637371 Singapore
| | - Hirohito Hayashi
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 637371 Singapore
| | - Bengang Xing
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 637371 Singapore
| | - Shunsuke Chiba
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 637371 Singapore
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37
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Latypova L, Sibgatullina R, Ogura A, Fujiki K, Khabibrakhmanova A, Tahara T, Nozaki S, Urano S, Tsubokura K, Onoe H, Watanabe Y, Kurbangalieva A, Tanaka K. Sequential Double "Clicks" toward Structurally Well-Defined Heterogeneous N-Glycoclusters: The Importance of Cluster Heterogeneity on Pattern Recognition In Vivo. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2017; 4:1600394. [PMID: 28251056 PMCID: PMC5323863 DOI: 10.1002/advs.201600394] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Indexed: 05/27/2023]
Abstract
Structurally well-defined heterogeneous N-glycoclusters are prepared on albumin via a double click procedure. The number of glycan molecules present, in addition to the spatial arrangement of glycans in the heterogeneous glycoclusters, plays an important role in the in vivo kinetics and organ-selective accumulation through glycan pattern recognition mechanisms.
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Affiliation(s)
- Liliya Latypova
- Biofunctional Synthetic Chemistry LaboratoryRIKEN, HirosawaWako‐shi, Saitama351‐0198Japan
- Biofunctional Chemistry LaboratoryA. Butlerov Institute of ChemistryKazan Federal University18 Kremlyovskaya streetKazan420008Russia
| | - Regina Sibgatullina
- Biofunctional Synthetic Chemistry LaboratoryRIKEN, HirosawaWako‐shi, Saitama351‐0198Japan
- Biofunctional Chemistry LaboratoryA. Butlerov Institute of ChemistryKazan Federal University18 Kremlyovskaya streetKazan420008Russia
| | - Akihiro Ogura
- Biofunctional Synthetic Chemistry LaboratoryRIKEN, HirosawaWako‐shi, Saitama351‐0198Japan
| | - Katsumasa Fujiki
- Biofunctional Synthetic Chemistry LaboratoryRIKEN, HirosawaWako‐shi, Saitama351‐0198Japan
| | - Alsu Khabibrakhmanova
- Biofunctional Chemistry LaboratoryA. Butlerov Institute of ChemistryKazan Federal University18 Kremlyovskaya streetKazan420008Russia
| | - Tsuyoshi Tahara
- Center for Life Science TechnologiesRIKENMinatojima‐minamimachi, Chuo‐kuKobe, Hyogo650‐0047Japan
| | - Satoshi Nozaki
- Center for Life Science TechnologiesRIKENMinatojima‐minamimachi, Chuo‐kuKobe, Hyogo650‐0047Japan
| | - Sayaka Urano
- Biofunctional Synthetic Chemistry LaboratoryRIKEN, HirosawaWako‐shi, Saitama351‐0198Japan
| | - Kazuki Tsubokura
- Biofunctional Synthetic Chemistry LaboratoryRIKEN, HirosawaWako‐shi, Saitama351‐0198Japan
| | - Hirotaka Onoe
- Center for Life Science TechnologiesRIKENMinatojima‐minamimachi, Chuo‐kuKobe, Hyogo650‐0047Japan
| | - Yasuyoshi Watanabe
- Center for Life Science TechnologiesRIKENMinatojima‐minamimachi, Chuo‐kuKobe, Hyogo650‐0047Japan
| | - Almira Kurbangalieva
- Biofunctional Chemistry LaboratoryA. Butlerov Institute of ChemistryKazan Federal University18 Kremlyovskaya streetKazan420008Russia
| | - Katsunori Tanaka
- Biofunctional Synthetic Chemistry LaboratoryRIKEN, HirosawaWako‐shi, Saitama351‐0198Japan
- Biofunctional Chemistry LaboratoryA. Butlerov Institute of ChemistryKazan Federal University18 Kremlyovskaya streetKazan420008Russia
- JST‐PRESTO, HirosawaWako‐shi, Saitama351‐0198Japan
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38
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Piccirillo G, Pepe A, Bedini E, Bochicchio B. Photoinduced Thiol-ene Chemistry Applied to the Synthesis of Self-Assembling Elastin-Inspired Glycopeptides. Chemistry 2017; 23:2648-2659. [DOI: 10.1002/chem.201604831] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Indexed: 01/10/2023]
Affiliation(s)
- Germano Piccirillo
- Department of Science; University of Basilicata; Via Ateneo Lucano, 10 85100 Potenza Italy
| | - Antonietta Pepe
- Department of Science; University of Basilicata; Via Ateneo Lucano, 10 85100 Potenza Italy
| | - Emiliano Bedini
- Department of Chemical Sciences; University of Naples Federico II; Complesso Universitario Monte S.Angelo; Via Cintia, 4 80126 Naples Italy
| | - Brigida Bochicchio
- Department of Science; University of Basilicata; Via Ateneo Lucano, 10 85100 Potenza Italy
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39
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Alexander SR, Lim D, Amso Z, Brimble MA, Fairbanks AJ. Protecting group free synthesis of glycosyl thiols from reducing sugars in water; application to the production of N-glycan glycoconjugates. Org Biomol Chem 2017; 15:2152-2156. [DOI: 10.1039/c7ob00112f] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Un-protected 2-acetamido terminated reducing sugars may be converted into the corresponding glycosyl thiols in water, and conjugated to peptides using the thiol–ene click reaction without recourse to any protecting groups.
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Affiliation(s)
- S. R. Alexander
- Department of Chemistry
- University of Canterbury
- Christchurch 8140
- New Zealand
| | - D. Lim
- Department of Chemistry
- University of Canterbury
- Christchurch 8140
- New Zealand
| | - Z. Amso
- School of Chemical Sciences
- The University of Auckland
- Auckland 1142
- New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery
| | - M. A. Brimble
- School of Chemical Sciences
- The University of Auckland
- Auckland 1142
- New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery
| | - A. J. Fairbanks
- Department of Chemistry
- University of Canterbury
- Christchurch 8140
- New Zealand
- Biomolecular Interaction Centre
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40
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Sangwan R, Mandal PK. Recent advances in photoinduced glycosylation: oligosaccharides, glycoconjugates and their synthetic applications. RSC Adv 2017. [DOI: 10.1039/c7ra01858d] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Carbohydrates have been demonstrated to perform imperative act in biological processes. This review highlights recent uses of photoinduced glycosylation in carbohydrate chemistry for the synthesis of oligosaccharides, thiosugars, glycoconjugates and glycoprotein.
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Affiliation(s)
- Rekha Sangwan
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow
- India
- Academy of Scientific and Innovative Research
| | - Pintu Kumar Mandal
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow
- India
- Academy of Scientific and Innovative Research
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41
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Chuh KN, Batt AR, Pratt MR. Chemical Methods for Encoding and Decoding of Posttranslational Modifications. Cell Chem Biol 2016; 23:86-107. [PMID: 26933738 DOI: 10.1016/j.chembiol.2015.11.006] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 11/25/2015] [Accepted: 11/25/2015] [Indexed: 12/13/2022]
Abstract
A large array of posttranslational modifications can dramatically change the properties of proteins and influence different aspects of their biological function such as enzymatic activity, binding interactions, and proteostasis. Despite the significant knowledge that has been gained about the function of posttranslational modifications using traditional biological techniques, the analysis of the site-specific effects of a particular modification, the identification of the full complement of modified proteins in the proteome, and the detection of new types of modifications remains challenging. Over the years, chemical methods have contributed significantly in both of these areas of research. This review highlights several posttranslational modifications where chemistry-based approaches have made significant contributions to our ability to both prepare homogeneously modified proteins and identify and characterize particular modifications in complex biological settings. As the number and chemical diversity of documented posttranslational modifications continues to rise, we believe that chemical strategies will be essential to advance the field in years to come.
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Affiliation(s)
- Kelly N Chuh
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA
| | - Anna R Batt
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA
| | - Matthew R Pratt
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA; Department of Molecular and Computational Biology, University of Southern California, Los Angeles, CA 90089, USA.
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42
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Zhao B, Zhang Q, Li Z. Constructing thioether-tethered cyclic peptides via on-resin intra-molecular thiol-ene reaction. J Pept Sci 2016; 22:540-4. [DOI: 10.1002/psc.2902] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 05/23/2016] [Accepted: 06/01/2016] [Indexed: 01/07/2023]
Affiliation(s)
- Bingchuan Zhao
- School of Chemical Biology and Biotechnology; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Qingzhou Zhang
- School of Chemical Biology and Biotechnology; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Zigang Li
- School of Chemical Biology and Biotechnology; Peking University Shenzhen Graduate School; Shenzhen 518055 China
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43
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D'Alonzo D, Cipolletti M, Tarantino G, Ziaco M, Pieretti G, Iadonisi A, Palumbo G, Alfano A, Giuliano M, De Rosa M, Schiraldi C, Cammarota M, Parrilli M, Bedini E, Corsaro MM. A Semisynthetic Approach to New Immunoadjuvant Candidates: Site-Selective Chemical Manipulation ofEscherichia coliMonophosphoryl Lipid A. Chemistry 2016; 22:11053-63. [DOI: 10.1002/chem.201601284] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Indexed: 01/25/2023]
Affiliation(s)
- Daniele D'Alonzo
- Department of Chemical Sciences; University of Naples Federico II; Complesso Universitario Monte S. Angelo, via Cintia 4 80126 Naples Italy
| | - Manuela Cipolletti
- Department of Chemical Sciences; University of Naples Federico II; Complesso Universitario Monte S. Angelo, via Cintia 4 80126 Naples Italy
- Department of Biology; University “Roma Tre”; Viale G. Marconi 446 00146 Rome Italy
| | - Giulia Tarantino
- Department of Chemical Sciences; University of Naples Federico II; Complesso Universitario Monte S. Angelo, via Cintia 4 80126 Naples Italy
- Cardiff Catalysis Institute; School of Chemistry; Cardiff University; Main Building, Park Place CF10 3AT Cardiff The United Kingdom
| | - Marcello Ziaco
- Department of Chemical Sciences; University of Naples Federico II; Complesso Universitario Monte S. Angelo, via Cintia 4 80126 Naples Italy
| | - Giuseppina Pieretti
- Department of Chemical Sciences; University of Naples Federico II; Complesso Universitario Monte S. Angelo, via Cintia 4 80126 Naples Italy
| | - Alfonso Iadonisi
- Department of Chemical Sciences; University of Naples Federico II; Complesso Universitario Monte S. Angelo, via Cintia 4 80126 Naples Italy
| | - Giovanni Palumbo
- Department of Chemical Sciences; University of Naples Federico II; Complesso Universitario Monte S. Angelo, via Cintia 4 80126 Naples Italy
| | - Alberto Alfano
- Department of Experimental Medicine; Second University of Naples; via de Crecchio 7 80138 Naples Italy
| | - Mariateresa Giuliano
- Department of Experimental Medicine; Second University of Naples; via de Crecchio 7 80138 Naples Italy
| | - Mario De Rosa
- Department of Experimental Medicine; Second University of Naples; via de Crecchio 7 80138 Naples Italy
| | - Chiara Schiraldi
- Department of Experimental Medicine; Second University of Naples; via de Crecchio 7 80138 Naples Italy
| | - Marcella Cammarota
- Department of Experimental Medicine; Second University of Naples; via de Crecchio 7 80138 Naples Italy
| | - Michelangelo Parrilli
- Department of Biology; University of Naples Federico II; Complesso Universitario Monte S. Angelo via Cintia 4 80126 Naples Italy
| | - Emiliano Bedini
- Department of Chemical Sciences; University of Naples Federico II; Complesso Universitario Monte S. Angelo, via Cintia 4 80126 Naples Italy
| | - Maria M. Corsaro
- Department of Chemical Sciences; University of Naples Federico II; Complesso Universitario Monte S. Angelo, via Cintia 4 80126 Naples Italy
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Jeyakanthan M, Meloncelli PJ, Zou L, Lowary TL, Larsen I, Maier S, Tao K, Rusch J, Chinnock R, Shaw N, Burch M, Beddows K, Addonizio L, Zuckerman W, Pahl E, Rutledge J, Kanter KR, Cairo CW, Buriak JM, Ross D, Rebeyka I, West LJ. ABH-Glycan Microarray Characterizes ABO Subtype Antibodies: Fine Specificity of Immune Tolerance After ABO-Incompatible Transplantation. Am J Transplant 2016; 16:1548-58. [PMID: 26602221 DOI: 10.1111/ajt.13625] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 10/18/2015] [Accepted: 11/07/2015] [Indexed: 01/25/2023]
Abstract
Organ transplantation from ABO blood group-incompatible (ABOi) donors requires accurate detection, effective removal and subsequent surveillance of antidonor antibodies. Because ABH antigen subtypes are expressed differently in various cells and organs, measurement of antibodies specific for the antigen subtypes in the graft is essential. Erythrocyte agglutination, the century-old assay used clinically, does not discriminate subtype-specific ABO antibodies and provides limited information on antibody isotypes. We designed and created an ABO-glycan microarray and demonstrated the precise assessment of both the presence and, importantly, the absence of donor-specific antibodies in an international study of pediatric heart transplant patients. Specific IgM, IgG, and IgA isotype antibodies to nonself ABH subtypes were detected in control participants and recipients of ABO-compatible transplants. Conversely, in children who received ABOi transplants, antibodies specific for A subtype II and/or B subtype II antigens-the only ABH antigen subtypes expressed in heart tissue-were absent, demonstrating the fine specificity of B cell tolerance to donor/graft blood group antigens. In contrast to the hemagglutination assay, the ABO-glycan microarray allows detailed characterization of donor-specific antibodies necessary for effective transplant management, representing a major step forward in precise ABO antibody detection.
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Affiliation(s)
- M Jeyakanthan
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - P J Meloncelli
- Alberta Glycomics Centre and Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - L Zou
- Alberta Glycomics Centre and Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - T L Lowary
- Alberta Glycomics Centre and Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - I Larsen
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - S Maier
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - K Tao
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - J Rusch
- Pediatrtic Cardiology, Loma Linda University Medical Center, Loma Linda, CA
| | - R Chinnock
- Pediatrtic Cardiology, Loma Linda University Medical Center, Loma Linda, CA
| | - N Shaw
- Pediatric Cardiology, Great Ormond Street Hospital for Sick Children, London, UK
| | - M Burch
- Pediatric Cardiology, Great Ormond Street Hospital for Sick Children, London, UK
| | - K Beddows
- Division of Pediatric Cardiology, Columbia University, New York, NY
| | - L Addonizio
- Division of Pediatric Cardiology, Columbia University, New York, NY
| | - W Zuckerman
- Division of Pediatric Cardiology, Columbia University, New York, NY
| | - E Pahl
- Pediatric Cardiology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL
| | - J Rutledge
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - K R Kanter
- Department of Surgery, Emory University School of Medicine, Atlanta, GA
| | - C W Cairo
- Alberta Glycomics Centre and Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - J M Buriak
- National Institute for Nanotechnology, University of Alberta, Edmonton, Alberta, Canada
| | - D Ross
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada.,Alberta Transplant Institute, University of Alberta, Edmonton, Alberta, Canada
| | - I Rebeyka
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada.,Alberta Transplant Institute, University of Alberta, Edmonton, Alberta, Canada
| | - L J West
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada.,Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.,Alberta Transplant Institute, University of Alberta, Edmonton, Alberta, Canada.,Department of Medical Microbiology & Immunology, University of Alberta, Edmonton, Alberta, Canada
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Yang SH, Harris PWR, Williams GM, Brimble MA. Lipidation of Cysteine or Cysteine-Containing Peptides Using the Thiol-Ene Reaction (CLipPA). European J Org Chem 2016. [DOI: 10.1002/ejoc.201501375] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Ogura A, Kurbangalieva A, Tanaka K. Exploring the glycan interaction in vivo: Future prospects of neo-glycoproteins for diagnostics. Glycobiology 2016; 26:804-12. [PMID: 26980440 DOI: 10.1093/glycob/cww038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 03/09/2016] [Indexed: 12/21/2022] Open
Abstract
Herein the biodistributions and in vivo kinetics of chemically prepared neoglycoproteins are reviewed. Chemical methods can be used to conjugate various mono- and oligosaccharides onto a protein surface. The kinetics and organ-specific accumulation profiles of these glycoconjugates, which are introduced through intravenous injections, have been analyzed using conventional dissection studies as well as noninvasive methods such as single photon emission computed tomography, positron emission tomography and fluorescence imaging. These studies suggest that glycan-dependent protein distribution kinetics may be useful for pharmacological and diagnostic applications.
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Affiliation(s)
- Akihiro Ogura
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Almira Kurbangalieva
- Biofunctional Chemistry Laboratory, A. Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya street, Kazan 420008, Russia
| | - Katsunori Tanaka
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan Biofunctional Chemistry Laboratory, A. Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya street, Kazan 420008, Russia JST PRESTO, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
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Gunnoo SB, Madder A. Chemical Protein Modification through Cysteine. Chembiochem 2016; 17:529-53. [DOI: 10.1002/cbic.201500667] [Citation(s) in RCA: 242] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Smita B. Gunnoo
- Organic & Biomimetic Chemistry Research Group; Department of Organic and Macromolecular Chemistry; Ghent University; Krijgslaan 281 9000 Gent Belgium
| | - Annemieke Madder
- Organic & Biomimetic Chemistry Research Group; Department of Organic and Macromolecular Chemistry; Ghent University; Krijgslaan 281 9000 Gent Belgium
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Healy J, Rasmussen T, Miller S, Booth IR, Conway SJ. The photochemical thiol-ene reaction as a versatile method for the synthesis of glutathione S-conjugates targeting the bacterial potassium efflux system Kef. Org Chem Front 2016; 3:439-446. [PMID: 27110363 PMCID: PMC4819703 DOI: 10.1039/c5qo00436e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 02/15/2016] [Indexed: 01/10/2023]
Abstract
The thiol-ene coupling reaction is emerging as an important conjugation reaction that is suitable for use in a biological setting. Here, we explore the utility of this reaction for the synthesis of glutathione-S-conjugates (GSX) and present a general, operationally simple, protocol with a wide substrate scope. The GSX afforded are an important class of compounds and provide invaluable molecular tools to study glutathione-binding proteins. In this study we apply the diverse library of GSX synthesised to further our understanding of the structural requirements for binding to the glutathione-binding protein, Kef, a bacterial K+ efflux system, found in many bacterial pathogens. This system is vital to the survival of bacteria upon exposure to electrophiles, and plays an essential role in the maintenance of intracellular pH and K+ homeostasis. Consequently, Kef is an appealing target for the development of novel antibacterial drugs.
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Affiliation(s)
- Jess Healy
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford , OX1 3TA , UK . ; ; Department of Pharmaceutical and Biological Chemistry , UCL School of Pharmacy , University College London , 29/39 Brunswick Square , WC1N, 1AX , UK
| | - Tim Rasmussen
- Institute of Medical Sciences , University of Aberdeen , Foresterhill , Aberdeen , AB25 2ZD , UK
| | - Samantha Miller
- Institute of Medical Sciences , University of Aberdeen , Foresterhill , Aberdeen , AB25 2ZD , UK
| | - Ian R Booth
- Institute of Medical Sciences , University of Aberdeen , Foresterhill , Aberdeen , AB25 2ZD , UK
| | - Stuart J Conway
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford , OX1 3TA , UK . ;
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McSweeney L, Dénès F, Scanlan EM. Thiyl-Radical Reactions in Carbohydrate Chemistry: From Thiosugars to Glycoconjugate Synthesis. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501543] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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50
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