1
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Adhikari K, Vanermen M, Da Silva G, Van den Wyngaert T, Augustyns K, Elvas F. Trans-cyclooctene-a Swiss army knife for bioorthogonal chemistry: exploring the synthesis, reactivity, and applications in biomedical breakthroughs. EJNMMI Radiopharm Chem 2024; 9:47. [PMID: 38844698 PMCID: PMC11156836 DOI: 10.1186/s41181-024-00275-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 05/27/2024] [Indexed: 06/09/2024] Open
Abstract
BACKGROUND Trans-cyclooctenes (TCOs) are highly strained alkenes with remarkable reactivity towards tetrazines (Tzs) in inverse electron-demand Diels-Alder reactions. Since their discovery as bioorthogonal reaction partners, novel TCO derivatives have been developed to improve their reactivity, stability, and hydrophilicity, thus expanding their utility in diverse applications. MAIN BODY TCOs have garnered significant interest for their applications in biomedical settings. In chemical biology, TCOs serve as tools for bioconjugation, enabling the precise labeling and manipulation of biomolecules. Moreover, their role in nuclear medicine is substantial, with TCOs employed in the radiolabeling of peptides and other biomolecules. This has led to their utilization in pretargeted nuclear imaging and therapy, where they function as both bioorthogonal tags and radiotracers, facilitating targeted disease diagnosis and treatment. Beyond these applications, TCOs have been used in targeted cancer therapy through a "click-to-release" approach, in which they act as key components to selectively deliver therapeutic agents to cancer cells, thereby enhancing treatment efficacy while minimizing off-target effects. However, the search for a suitable TCO scaffold with an appropriate balance between stability and reactivity remains a challenge. CONCLUSIONS This review paper provides a comprehensive overview of the current state of knowledge regarding the synthesis of TCOs, and its challenges, and their development throughout the years. We describe their wide ranging applications as radiolabeled prosthetic groups for radiolabeling, as bioorthogonal tags for pretargeted imaging and therapy, and targeted drug delivery, with the aim of showcasing the versatility and potential of TCOs as valuable tools in advancing biomedical research and applications.
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Affiliation(s)
- Karuna Adhikari
- Laboratory of Medicinal Chemistry, University of Antwerp, Antwerp, Belgium
- Molecular Imaging and Radiology, University of Antwerp, Antwerp, Belgium
| | - Maarten Vanermen
- Laboratory of Medicinal Chemistry, University of Antwerp, Antwerp, Belgium
- Molecular Imaging and Radiology, University of Antwerp, Antwerp, Belgium
| | - Gustavo Da Silva
- Molecular Imaging and Radiology, University of Antwerp, Antwerp, Belgium
| | - Tim Van den Wyngaert
- Molecular Imaging and Radiology, University of Antwerp, Antwerp, Belgium
- Department of Nuclear Medicine, Antwerp University Hospital, Edegem, Belgium
| | - Koen Augustyns
- Laboratory of Medicinal Chemistry, University of Antwerp, Antwerp, Belgium.
| | - Filipe Elvas
- Molecular Imaging and Radiology, University of Antwerp, Antwerp, Belgium.
- Department of Nuclear Medicine, Antwerp University Hospital, Edegem, Belgium.
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2
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Fang Y, Hillman AS, Fox JM. Advances in the Synthesis of Bioorthogonal Reagents: s-Tetrazines, 1,2,4-Triazines, Cyclooctynes, Heterocycloheptynes, and trans-Cyclooctenes. Top Curr Chem (Cham) 2024; 382:15. [PMID: 38703255 DOI: 10.1007/s41061-024-00455-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 02/01/2024] [Indexed: 05/06/2024]
Abstract
Aligned with the increasing importance of bioorthogonal chemistry has been an increasing demand for more potent, affordable, multifunctional, and programmable bioorthogonal reagents. More advanced synthetic chemistry techniques, including transition-metal-catalyzed cross-coupling reactions, C-H activation, photoinduced chemistry, and continuous flow chemistry, have been employed in synthesizing novel bioorthogonal reagents for universal purposes. We discuss herein recent developments regarding the synthesis of popular bioorthogonal reagents, with a focus on s-tetrazines, 1,2,4-triazines, trans-cyclooctenes, cyclooctynes, hetero-cycloheptynes, and -trans-cycloheptenes. This review aims to summarize and discuss the most representative synthetic approaches of these reagents and their derivatives that are useful in bioorthogonal chemistry. The preparation of these molecules and their derivatives utilizes both classical approaches as well as the latest organic chemistry methodologies.
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Affiliation(s)
- Yinzhi Fang
- Department of Chemistry and Biochemistry, University of Delaware, 590 Avenue 1743, Newark, DE, 19713, USA.
| | - Ashlyn S Hillman
- Department of Chemistry and Biochemistry, University of Delaware, 590 Avenue 1743, Newark, DE, 19713, USA
| | - Joseph M Fox
- Department of Chemistry and Biochemistry, University of Delaware, 590 Avenue 1743, Newark, DE, 19713, USA.
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3
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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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4
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Sahkulubey Kahveci EL, Kahveci MU, Celebi A, Avsar T, Derman S. Glycopolymer and Poly(β-amino ester)-Based Amphiphilic Block Copolymer as a Drug Carrier. Biomacromolecules 2022; 23:4896-4908. [PMID: 36317475 PMCID: PMC9667500 DOI: 10.1021/acs.biomac.2c01076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/20/2022] [Indexed: 11/16/2022]
Abstract
Glycopolymers are synthetic macromolecules having pendant sugar moieties and widely utilized to target cancer cells. They are usually considered as a hydrophilic segment of amphiphilic block copolymers to fabricate micelles as drug carriers. A novel amphiphilic block copolymer, namely, poly(2-deoxy-2-methacrylamido-d-glucose-co-2-hydroxyethyl methacrylate)-b-poly(β-amino ester) [P(MAG-co-HEMA)-b-PBAE], with active cancer cell targeting potential and pH responsivity was prepared. Tetrazine end functional P(MAG-co-HEMA) and norbornene end functional PBAE blocks were separately synthesized through reversible addition fragmentation chain transfer polymerization and Michael addition-based poly-condensation, respectively, and followed by end-group transformation. Then, inverse electron demand Diels Alder reaction between the tetrazine and the norbornene groups was performed by simply mixing to obtain the amphiphilic block copolymer. After characterization of the block copolymer in terms of chemical structure, pH responsivity, and drug loading/releasing, pH-responsive micelles were obtained with or without doxorubicin (DOX), a model anticancer drug. The micelles exhibited a sharp protonated/deprotonated transition on tertiary amine groups around pH 6.75 and the pH-specific release of DOX below this value. Eventually, the drug delivery potential was evaluated by cytotoxicity assays on both the noncancerous human umbilical vein endothelial cell (HUVEC) cell line and glioblastoma cell line, U87-MG. While the DOX-loaded polymeric micelles were not toxic in noncancerous HUVEC cells, being toxic only to the cancer cells indicates that it is a potential specific cell targeting strategy in the treatment of cancer.
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Affiliation(s)
- Elif L. Sahkulubey Kahveci
- Faculty
of Chemical and Metallurgical Engineering, Department of Bioengineering, Yildiz Technical University, Davutpasa Campus, Esenler, 34210Istanbul, Turkey
| | - Muhammet U. Kahveci
- Faculty
of Science and Letters, Department of Chemistry, Istanbul Technical University, Maslak, Sariyer, 34467Istanbul, Turkey
| | - Asuman Celebi
- Department
of Medical Biology, School of Medicine, Bahcesehir University, Goztepe, 34734Istanbul, Turkey
| | - Timucin Avsar
- Department
of Medical Biology, School of Medicine, Bahcesehir University, Goztepe, 34734Istanbul, Turkey
| | - Serap Derman
- Faculty
of Chemical and Metallurgical Engineering, Department of Bioengineering, Yildiz Technical University, Davutpasa Campus, Esenler, 34210Istanbul, Turkey
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5
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Taylor RJ, Geeson MB, Journeaux T, Bernardes GJL. Chemical and Enzymatic Methods for Post-Translational Protein-Protein Conjugation. J Am Chem Soc 2022; 144:14404-14419. [PMID: 35912579 PMCID: PMC9389620 DOI: 10.1021/jacs.2c00129] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Indexed: 11/28/2022]
Abstract
Fusion proteins play an essential role in the biosciences but suffer from several key limitations, including the requirement for N-to-C terminal ligation, incompatibility of constituent domains, incorrect folding, and loss of biological activity. This perspective focuses on chemical and enzymatic approaches for the post-translational generation of well-defined protein-protein conjugates, which overcome some of the limitations faced by traditional fusion techniques. Methods discussed range from chemical modification of nucleophilic canonical amino acid residues to incorporation of unnatural amino acid residues and a range of enzymatic methods, including sortase-mediated ligation. Through summarizing the progress in this rapidly growing field, the key successes and challenges associated with using chemical and enzymatic approaches are highlighted and areas requiring further development are discussed.
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Affiliation(s)
- Ross J. Taylor
- Department
of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, U.K.
| | - Michael B. Geeson
- Department
of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, U.K.
| | - Toby Journeaux
- Department
of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, U.K.
| | - Gonçalo J. L. Bernardes
- Department
of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, U.K.
- Instituto
de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028, Lisboa, Portugal
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6
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Site-Specific Cross-Linking of Galectin-1 Homodimers via Poly(ethylene glycol) Bismaleimide. Cell Mol Bioeng 2021; 14:523-534. [PMID: 34777608 DOI: 10.1007/s12195-021-00681-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 05/26/2021] [Indexed: 12/25/2022] Open
Abstract
Introduction The promise of the natural immunoregulator, Galectin-1 (Gal1), as an immunomodulatory therapeutic is challenged by its unstable homodimeric conformation. Previously, a Gal1 homodimer stabilized via covalent poly(ethylene glycol) diacrylate (PEGDA) cross-linking demonstrated higher activity relative to the non-covalent homodimer. Methods Here, we report Gal1 homodimers formed using an alternative thiol-Michael addition linker chemistry. Results Poly(ethylene glycol) bismaleimide (PEGbisMal) reacted with Gal1 at multiple sites with greater efficiency than PEGDA. However, multiple PEGbisMal molecules were conjugated to Gal1 C130, a Gal1 mutant with one surface cysteine (cys-130) and two cysteines thought to be buried in the solvent-inaccessible protein core (cys-42 and cys-60). Site-directed mutagenesis demonstrated that cys-60 was the site at which additional PEGbisMal molecules were conjugated onto Gal1 C130. Compared to WT-Gal1, Gal1 C130 had low activity for inducing Jurkat T cell death, characterized by phosphatidylserine exposure and membrane permeability. PEG cross-linking could restore the function of Gal1 C130, such that at high concentrations Gal1 C130 cross-linked by PEGbisMal had higher activity than both WT-Gal1 and Gal1 C130 cross-linked by PEGDA. Mutating cys-42 and cys-60 to serines in Gal1 C130 did not affect the cell death signaling activity of the Gal1 C130 homodimer cross-linked by PEGbisMal. PEGylated Gal1 C130 variants also eliminated the need for a reducing agent, such as dithiothreitol, which is required to maintain WT-Gal1 signaling activity. Conclusion Collectively, these data demonstrate that thiol-Michael addition bioconjugation leads to a PEG-cross-linked Gal1 homodimer with improved extracellular signaling activity that does not require a reducing environment to be functional.
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7
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Feng Y, Quinnell SP, Lanzi AM, Vegas AJ. Alginate-Based Amphiphilic Block Copolymers as a Drug Codelivery Platform. NANO LETTERS 2021; 21:7495-7504. [PMID: 34495662 PMCID: PMC8768502 DOI: 10.1021/acs.nanolett.1c01525] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Structured nanoassemblies are biomimetic structures that are enabling applications from nanomedicine to catalysis. One approach to achieve these spatially organized architectures is utilizing amphiphilic diblock copolymers with one or two macromolecular backbones that self-assemble in solution. To date, the impact of alternating backbone architectures on self-assembly and drug delivery is still an area of active research limited by the strategies used to synthesize these multiblock polymers. Here, we report self-assembling ABC-type alginate-based triblock copolymers with the backbones of three distinct biomaterials utilizing a facile conjugation approach. This "polymer mosaic" was synthesized by the covalent attachment of alginate with a PLA/PEG diblock copolymer. The combination of alginate, PEG, and PLA domains resulted in an amphiphilic copolymer that self-assembles into nanoparticles with a unique morphology of alginate domain compartmentalization. These particles serve as a versatile platform for co-encapsulation of hydrophilic and hydrophobic small molecules, their spatiotemporal release, and show potential as a drug delivery system for combination therapy.
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Affiliation(s)
- Yunpeng Feng
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Sean P. Quinnell
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Alison M. Lanzi
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Arturo J. Vegas
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
- Corresponding Author: Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States;
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8
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Çetinkaya A, Sadak AE, Ayhan MM, Zorlu Y, Kahveci MU. Porphyrin-based covalent organic polymer by inverse electron demand Diels-Alder reaction. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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9
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Falanga A, Del Genio V, Kaufman EA, Zannella C, Franci G, Weck M, Galdiero S. Engineering of Janus-Like Dendrimers with Peptides Derived from Glycoproteins of Herpes Simplex Virus Type 1: Toward a Versatile and Novel Antiviral Platform. Int J Mol Sci 2021; 22:6488. [PMID: 34204295 PMCID: PMC8234430 DOI: 10.3390/ijms22126488] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 12/17/2022] Open
Abstract
Novel antiviral nanotherapeutics, which may inactivate the virus and block it from entering host cells, represent an important challenge to face viral global health emergencies around the world. Using a combination of bioorthogonal copper-catalyzed 1,3-dipolar alkyne/azide cycloaddition (CuAAC) and photoinitiated thiol-ene coupling, monofunctional and bifunctional peptidodendrimer conjugates were obtained. The conjugates are biocompatible and demonstrate no toxicity to cells at biologically relevant concentrations. Furthermore, the orthogonal addition of multiple copies of two different antiviral peptides on the surface of a single dendrimer allowed the resulting bioconjugates to inhibit Herpes simplex virus type 1 at both the early and the late stages of the infection process. The presented work builds on further improving this attractive design to obtain a new class of therapeutics.
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Affiliation(s)
- Annarita Falanga
- Department of Agricultural Sciences, University of Naples “Federico II”, Via Università 100, Portici, 80055 Naples, Italy;
| | - Valentina Del Genio
- Department of Pharmacy and CIRPEB, University of Naples “Federico II”, Via Montesano 49, 80131 Naples, Italy;
| | - Elizabeth A. Kaufman
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY 10003, USA; (E.A.K.); (M.W.)
| | - Carla Zannella
- Department of Experimental Medicine, Second University of Naples, Via de Crecchio 7, 80138 Naples, Italy;
| | - Gianluigi Franci
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy;
| | - Marcus Weck
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY 10003, USA; (E.A.K.); (M.W.)
| | - Stefania Galdiero
- Department of Pharmacy and CIRPEB, University of Naples “Federico II”, Via Montesano 49, 80131 Naples, Italy;
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10
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Hoang HT, Jo SH, Phan QT, Park H, Park SH, Oh CW, Lim KT. Dual pH-/thermo-responsive chitosan-based hydrogels prepared using "click" chemistry for colon-targeted drug delivery applications. Carbohydr Polym 2021; 260:117812. [PMID: 33712157 DOI: 10.1016/j.carbpol.2021.117812] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/28/2021] [Accepted: 02/09/2021] [Indexed: 12/21/2022]
Abstract
A dual pH-/thermo-responsive hydrogel was designed based on a polyelectrolyte complex of polyacrylic acid (PAA) and norbornene-functionalized chitosan (CsNb), which was synergized with chemical crosslinking using bistetrazine-poly(N-isopropyl acrylamide) (bisTz-PNIPAM). The thermo-responsive polymeric crosslinker, bisTz-PNIPAM, was synthesized via reversible addition-fragmentation transfer polymerization of NIPAM. FTIR, XRD, rheological and morphological analyses demonstrated the successful formation of the polyelectrolyte network. The highly porous structure generated through the in-situ "click" reaction between Tz and Nb resulted in a higher drug loading (29.35 %). The hydrogel (COOH/NH2 mole ratio of 3:1) exhibited limited drug release (8.5 %) of 5-ASA at a pH of 2.2, but it provided an almost complete release (92 %) at pH 7.4 and 37 °C within 48 h due to the pH responsiveness of PAA, hydrogel porosity, and shrinkage behavior of PNIPAM. The hydrogels were biodegradable and non-toxic against human fibroblast cells, suggesting their considerable potential for a colon-targeted drug delivery system.
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Affiliation(s)
- Huong Thi Hoang
- Department of Smart Green Technology Engineering, Pukyong National University, Busan, 48513, South Korea
| | - Sung-Han Jo
- Department of Biomedical Engineering, Pukyong National University, Busan, 48513, South Korea
| | - Quoc-Thang Phan
- Department of Smart Green Technology Engineering, Pukyong National University, Busan, 48513, South Korea
| | - Hansol Park
- Department of Smart Green Technology Engineering, Pukyong National University, Busan, 48513, South Korea
| | - Sang-Hyug Park
- Department of Biomedical Engineering, Pukyong National University, Busan, 48513, South Korea
| | - Chul-Woong Oh
- Department of Marine Biology, Pukyong National University, Busan, 48513, South Korea
| | - Kwon Taek Lim
- Department of Smart Green Technology Engineering, Pukyong National University, Busan, 48513, South Korea; Department of Display Engineering, Pukyong National University, Busan, 48513, South Korea.
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11
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Click chemistry strategies for the accelerated synthesis of functional macromolecules. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210126] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Bakirdogen G, Sahkulubey Kahveci EL, Kahveci MU. Fast and efficient preparation of three-arm star block copolymers via tetrazine ligation. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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14
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Pigga JE, Fox JM. Flow Photochemical Syntheses of trans-Cyclooctenes and trans-Cycloheptenes Driven by Metal Complexation. Isr J Chem 2020; 60:207-218. [PMID: 34108738 PMCID: PMC8186252 DOI: 10.1002/ijch.201900085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Indexed: 12/19/2022]
Abstract
trans-Cyclooctenes and trans-cycloheptenes have long been the subject of physical organic study, but the broader application had been limited by synthetic accessibility. This account describes the development of a general, flow photochemical method for the preparative synthesis of trans-cycloalkene derivatives. Here, photoisom erization takes place in a closed-loop flow reactor where the reaction mixture is continuously cycled through Ag(I) on silica gel. Selective complexation of the trans-isomer by Ag(I) during flow drives an otherwise unfavorable isomeric ratio toward the trans-isomer. Analogous photoreactions under batch-conditions are low yielding, and flow chemistry is necessary in order to obtain trans-cycloalkenes in preparatively useful yields. The applications of the method to bioorthogonal chemistry and stereospecific transannulation chemistry are described.
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Affiliation(s)
- Jessica E Pigga
- Department of Chemistry and Biochemistry University of Delaware, Newark DE 19716
| | - Joseph M Fox
- Department of Chemistry and Biochemistry University of Delaware, Newark DE 19716
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15
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Mizutani N, Hosono N, Le Ouay B, Kitao T, Matsuura R, Kubo T, Uemura T. Recognition of Polymer Terminus by Metal–Organic Frameworks Enabling Chromatographic Separation of Polymers. J Am Chem Soc 2020; 142:3701-3705. [DOI: 10.1021/jacs.9b13568] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Nagi Mizutani
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Nobuhiko Hosono
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Benjamin Le Ouay
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Takashi Kitao
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ryoichirou Matsuura
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takuya Kubo
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takashi Uemura
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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16
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Mboyi CD, Vivier D, Daher A, Fleurat‐Lessard P, Cattey H, Devillers CH, Bernhard C, Denat F, Roger J, Hierso J. Bridge‐Clamp Bis(tetrazine)s with [N]
8
π‐Stacking Interactions and Azido‐
s
‐Aryl Tetrazines: Two Classes of Doubly Clickable Tetrazines. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201911947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Clève D. Mboyi
- Université de Bourgogne Institut de Chimie Moléculaire de l'Université de Bourgogne UMR CNRS 6302— Université de Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary 21078 Dijon France
| | - Delphine Vivier
- Université de Bourgogne Institut de Chimie Moléculaire de l'Université de Bourgogne UMR CNRS 6302— Université de Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary 21078 Dijon France
| | - Ahmad Daher
- Université de Bourgogne Institut de Chimie Moléculaire de l'Université de Bourgogne UMR CNRS 6302— Université de Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary 21078 Dijon France
| | - Paul Fleurat‐Lessard
- Université de Bourgogne Institut de Chimie Moléculaire de l'Université de Bourgogne UMR CNRS 6302— Université de Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary 21078 Dijon France
| | - Hélène Cattey
- Université de Bourgogne Institut de Chimie Moléculaire de l'Université de Bourgogne UMR CNRS 6302— Université de Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary 21078 Dijon France
| | - Charles H. Devillers
- Université de Bourgogne Institut de Chimie Moléculaire de l'Université de Bourgogne UMR CNRS 6302— Université de Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary 21078 Dijon France
| | - Claire Bernhard
- Université de Bourgogne Institut de Chimie Moléculaire de l'Université de Bourgogne UMR CNRS 6302— Université de Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary 21078 Dijon France
| | - Franck Denat
- Université de Bourgogne Institut de Chimie Moléculaire de l'Université de Bourgogne UMR CNRS 6302— Université de Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary 21078 Dijon France
| | - Julien Roger
- Université de Bourgogne Institut de Chimie Moléculaire de l'Université de Bourgogne UMR CNRS 6302— Université de Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary 21078 Dijon France
| | - Jean‐Cyrille Hierso
- Université de Bourgogne Institut de Chimie Moléculaire de l'Université de Bourgogne UMR CNRS 6302— Université de Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary 21078 Dijon France
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17
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Johann K, Svatunek D, Seidl C, Rizzelli S, Bauer TA, Braun L, Koynov K, Mikula H, Barz M. Tetrazine- and trans-cyclooctene-functionalised polypept(o)ides for fast bioorthogonal tetrazine ligation. Polym Chem 2020. [DOI: 10.1039/d0py00375a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Tetrazine- and trans-cyclooctene-functionalised polypeptides and polypetoids were prepared by ring-opening polymerisation of N-carboxyanhydrides using the respective functional initiators and shown to react in fast bioorthogonal tetrazine ligations.
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Affiliation(s)
- Kerstin Johann
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55128 Mainz
- Germany
| | - Dennis Svatunek
- Institute of Applied Synthetic Chemistry
- Technische Universität Wien
- 1060 Vienna
- Austria
| | - Christine Seidl
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55128 Mainz
- Germany
| | - Silvia Rizzelli
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55128 Mainz
- Germany
| | - Tobias A. Bauer
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55128 Mainz
- Germany
| | - Lydia Braun
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55128 Mainz
- Germany
| | - Kaloian Koynov
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
| | - Hannes Mikula
- Institute of Applied Synthetic Chemistry
- Technische Universität Wien
- 1060 Vienna
- Austria
| | - Matthias Barz
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55128 Mainz
- Germany
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18
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Mboyi CD, Vivier D, Daher A, Fleurat-Lessard P, Cattey H, Devillers CH, Bernhard C, Denat F, Roger J, Hierso JC. Bridge-Clamp Bis(tetrazine)s with [N] 8 π-Stacking Interactions and Azido-s-Aryl Tetrazines: Two Classes of Doubly Clickable Tetrazines. Angew Chem Int Ed Engl 2019; 59:1149-1154. [PMID: 31643125 DOI: 10.1002/anie.201911947] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/22/2019] [Indexed: 12/17/2022]
Abstract
Click chemistry at a tetrazine core is useful for bioorthogonal labeling and crosslinking. Introduced here are two new classes of doubly clickable s-aryl tetrazines synthesized by Cu-catalyzed cross-coupling. Homocoupling of o-brominated s-aryl tetrazines leads to bis(tetrazine)s structurally characterized by tetrazine cores arranged face-to-face. [N]8 π-stacking interactions are essential to the conformation. Upon inverse electron demand Diels-Alder (iEDDA) cycloaddition, the bis(tetrazine)s produce a unique staple structure. The o-azidation of s-aryl tetrazines introduces a second proximal intermolecular clickable function that leads to double click chemistry opportunities. The stepwise introduction of fluorophores and then iEDDA cycloaddition, including bioconjugation to antibodies, was achieved on this class of tetrazines. This method extends to (thio)etherification, phosphination, trifluoromethylation and the introduction of various bioactive nitrogen-based heterocycles.
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Affiliation(s)
- Clève D Mboyi
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302-, Université de Bourgogne Franche-Comté (UBFC), 9, avenue Alain Savary, 21078, Dijon, France
| | - Delphine Vivier
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302-, Université de Bourgogne Franche-Comté (UBFC), 9, avenue Alain Savary, 21078, Dijon, France
| | - Ahmad Daher
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302-, Université de Bourgogne Franche-Comté (UBFC), 9, avenue Alain Savary, 21078, Dijon, France
| | - Paul Fleurat-Lessard
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302-, Université de Bourgogne Franche-Comté (UBFC), 9, avenue Alain Savary, 21078, Dijon, France
| | - Hélène Cattey
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302-, Université de Bourgogne Franche-Comté (UBFC), 9, avenue Alain Savary, 21078, Dijon, France
| | - Charles H Devillers
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302-, Université de Bourgogne Franche-Comté (UBFC), 9, avenue Alain Savary, 21078, Dijon, France
| | - Claire Bernhard
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302-, Université de Bourgogne Franche-Comté (UBFC), 9, avenue Alain Savary, 21078, Dijon, France
| | - Franck Denat
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302-, Université de Bourgogne Franche-Comté (UBFC), 9, avenue Alain Savary, 21078, Dijon, France
| | - Julien Roger
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302-, Université de Bourgogne Franche-Comté (UBFC), 9, avenue Alain Savary, 21078, Dijon, France
| | - Jean-Cyrille Hierso
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302-, Université de Bourgogne Franche-Comté (UBFC), 9, avenue Alain Savary, 21078, Dijon, France
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19
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Huang J, Qin H, Chen X, Wang B, Liang H, Lu J. Synthesis of an ortho-phthalaldehyde-functionalized copolymer for rapid, chemoselective and efficient conjugation with native proteins under physiological conditions. Polym Chem 2019. [DOI: 10.1039/c9py00365g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Anortho-phthalaldehyde-containing copolymer was designed and synthesized for rapid, chemoselective and efficient conjugation with proteins under physiological conditions.
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Affiliation(s)
- Jianbing Huang
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Provincial Key Laboratory for High Performance Resin-based Composites
- School of Chemistry
- Sun Yat-sen University
- Guangzhou
| | - Herong Qin
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Provincial Key Laboratory for High Performance Resin-based Composites
- School of Chemistry
- Sun Yat-sen University
- Guangzhou
| | - Xu Chen
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Provincial Key Laboratory for High Performance Resin-based Composites
- School of Chemistry
- Sun Yat-sen University
- Guangzhou
| | - Biyun Wang
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Provincial Key Laboratory for High Performance Resin-based Composites
- School of Chemistry
- Sun Yat-sen University
- Guangzhou
| | - Hui Liang
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Provincial Key Laboratory for High Performance Resin-based Composites
- School of Chemistry
- Sun Yat-sen University
- Guangzhou
| | - Jiang Lu
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Provincial Key Laboratory for High Performance Resin-based Composites
- School of Chemistry
- Sun Yat-sen University
- Guangzhou
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20
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Messina MS, Graefe CT, Chong P, Ebrahim OM, Pathuri RS, Bernier NA, Mills HA, Rheingold AL, Frontiera RR, Maynard HD, Spokoyny AM. Carborane RAFT agents as tunable and functional molecular probes for polymer materials. Polym Chem 2019. [DOI: 10.1039/c9py00199a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carborane RAFT agents are introduced as tunable multi-purpose tools acting as 1H NMR spectroscopic handles, Raman probes, and recognition units.
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Affiliation(s)
- Marco S. Messina
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | | | - Paul Chong
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
- Department of Chemistry
| | - Omar M. Ebrahim
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | - Ramya S. Pathuri
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | - Nicholas A. Bernier
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | - Harrison A. Mills
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | | | | | - Heather D. Maynard
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
- California NanoSystems Institute
| | - Alexander M. Spokoyny
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
- California NanoSystems Institute
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21
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Ko JH, Maynard HD. A guide to maximizing the therapeutic potential of protein-polymer conjugates by rational design. Chem Soc Rev 2018; 47:8998-9014. [PMID: 30443654 PMCID: PMC6322549 DOI: 10.1039/c8cs00606g] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Proteins are an important class of therapeutics that have advantages including high target specificity, but challenges to their use include rapid clearance and low physical stability. Conjugation of synthetic polymers is an effective approach to address the drawbacks and enhance other properties such as solubility. In this review, we present various considerations in synthesizing protein-polymer conjugates for therapeutic applications with a focus on the choice of polymer, protein, and conjugation method, as well as characterization and evaluation of the resulting conjugate in order to maximize the therapeutic potential of the protein drug.
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Affiliation(s)
- Jeong Hoon Ko
- Department of Chemistry and Biochemistry and California NanoSystems Institute, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, USA.
| | - Heather D. Maynard
- Department of Chemistry and Biochemistry and California NanoSystems Institute, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, USA.
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22
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Chou CH, Lin PC. Glycan-Directed Grafting-from Polymerization of Immunoglobulin G: Site-Selectively Modified IgG-Polymer Conjugates with Preserved Biological Activity. Biomacromolecules 2018; 19:3086-3095. [PMID: 29890078 DOI: 10.1021/acs.biomac.8b00669] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Antibody and related antibody drugs for the treatment of malignancies have led to progress in targeted cancer therapy. Preparation of diverse antibody conjugates is critical for preclinical and clinical applications. However, precise control in tagging molecules at specific locations on antibodies is essential to preserve their native function. In this study, a synthetic boronic acid (BA)-tosyl initiator was used to trigger a glycan-directed modification of IgGs, and the obtained IgG macroinitiators allowed a growth of the poly N-isopropylacrylamide (PNIPAAm) chains specifically at Fc-domains. Therefore, the PNIPAAm chains are located away from the critical antigen-binding domains (Fab), which could reasonably prevent the loss of biological activity after the attachment of polymer chains. According to the proposed strategy, a site-selectively modified anticoncanavalin A (Con A) antibody-PNIPAAm conjugate showed 6-times higher efficiency in the binding of targeted Con A antigen to a randomly conjugated anti-Con A antibody-PNIPAAm conjugate. In this study, we developed the first chemical strategy for the site-specific preparation of IgG-polymer conjugates with conserved biological activity as well as intact glycan structures.
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Affiliation(s)
- Chih-Hung Chou
- Department of Chemistry , National Sun Yat-sen University 70, Lienhai Road , Kaohsiung 80424 , Taiwan
| | - Po-Chiao Lin
- Department of Chemistry , National Sun Yat-sen University 70, Lienhai Road , Kaohsiung 80424 , Taiwan
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23
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Fettis MM, Hudalla GA. Engineering Reactive Oxygen Species-Resistant Galectin-1 Dimers with Enhanced Lectin Activity. Bioconjug Chem 2018; 29:2489-2496. [DOI: 10.1021/acs.bioconjchem.8b00425] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Margaret M. Fettis
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive, Gainesville, Florida 32611, United States
| | - Gregory A. Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive, Gainesville, Florida 32611, United States
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24
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White CJ, Bode JW. PEGylation and Dimerization of Expressed Proteins under Near Equimolar Conditions with Potassium 2-Pyridyl Acyltrifluoroborates. ACS CENTRAL SCIENCE 2018; 4:197-206. [PMID: 29532019 PMCID: PMC5833003 DOI: 10.1021/acscentsci.7b00432] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Indexed: 05/27/2023]
Abstract
The covalent conjugation of large, functionalized molecules remains a frontier in synthetic chemistry, as it requires rapid, chemoselective reactions. The potassium acyltrifluoroborate (KAT)-hydroxylamine amide-forming ligation shows promise for conjugations of biomolecules under aqueous, acidic conditions, but the variants reported to date are not suited to ligations at micromolar concentrations. We now report that 2-pyridyl KATs display significantly enhanced ligation kinetics over their aryl counterparts. Following their facile, one-step incorporation onto the termini of polyethylene glycol (PEG) chains, we show that 2-pyridyl KATs can be applied to the construction of protein-polymer conjugates in excellent (>95%) yield. Four distinct expressed, folded proteins equipped with a hydroxylamine could be PEGylated with 2-20 kDa 2-pyridyl mPEG KATs in high yield and with near-equimolar amounts of coupling partners. Furthermore, the use of a bis 2-pyridyl PEG KAT enables the covalent homodimerization of proteins with good conversion. The 2-pyridyl KAT ligation offers an effective alternative to conventional protein-polymer conjugation by operating under aqueous acidic conditions well suited for the handling of folded proteins.
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Affiliation(s)
- Christopher J. White
- Laboratorium für Organische Chemie,
Department of Chemistry and Applied Biosciences, ETH Zürich, 8093, Zürich, Switzerland
| | - Jeffrey W. Bode
- Laboratorium für Organische Chemie,
Department of Chemistry and Applied Biosciences, ETH Zürich, 8093, Zürich, Switzerland
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25
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Imoto H, Fujii R, Naka K. 3,4-Diaminomaleimide Dyes - Simple Luminophores with Efficient Orange-Red Emission in the Solid State. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701479] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering; Graduate School of Science and Technology; Kyoto Institute of Technology; Goshokaido-cho, Matsugasaki 606-8585 Sakyo-ku, Kyoto Japan
| | - Ryosuke Fujii
- Faculty of Molecular Chemistry and Engineering; Graduate School of Science and Technology; Kyoto Institute of Technology; Goshokaido-cho, Matsugasaki 606-8585 Sakyo-ku, Kyoto Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering; Graduate School of Science and Technology; Kyoto Institute of Technology; Goshokaido-cho, Matsugasaki 606-8585 Sakyo-ku, Kyoto Japan
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26
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Vinciguerra D, Tran J, Nicolas J. Telechelic polymers from reversible-deactivation radical polymerization for biomedical applications. Chem Commun (Camb) 2018; 54:228-240. [DOI: 10.1039/c7cc08544c] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Strategies for the synthesis of telechelic polymers by reversible-activation radical polymerization for biomedical applications are covered spanning from drug delivery and targeting to theranostics and sensing.
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Affiliation(s)
- Daniele Vinciguerra
- Institut Galien Paris-Sud
- UMR CNRS 8612
- Univ Paris-Sud
- Faculté de Pharmacie
- F-92296 Châtenay-Malabry cedex
| | - Johanna Tran
- Institut Galien Paris-Sud
- UMR CNRS 8612
- Univ Paris-Sud
- Faculté de Pharmacie
- F-92296 Châtenay-Malabry cedex
| | - Julien Nicolas
- Institut Galien Paris-Sud
- UMR CNRS 8612
- Univ Paris-Sud
- Faculté de Pharmacie
- F-92296 Châtenay-Malabry cedex
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27
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Herrington-Symes A, Choi JW, Brocchini S. Interferon dimers: IFN-PEG-IFN. J Drug Target 2017; 25:881-890. [PMID: 28817988 DOI: 10.1080/1061186x.2017.1363214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Increasingly complex proteins can be made by a recombinant chemical approach where proteins that can be made easily can be combined by site-specific chemical conjugation to form multifunctional or more active protein therapeutics. Protein dimers may display increased avidity for cell surface receptors. The increased size of protein dimers may also increase circulation times. Cytokines bind to cell surface receptors that dimerise, so much of the solvent accessible surface of a cytokine is involved in binding to its target. Interferon (IFN) homo-dimers (IFN-PEG-IFN) were prepared by two methods: site-specific bis-alkylation conjugation of PEG to the two thiols of a native disulphide or to two imidazoles on a histidine tag of two His8-tagged IFN (His8IFN). Several control conjugates were also prepared to assess the relative activity of these IFN homo-dimers. The His8IFN-PEG20-His8IFN obtained by histidine-specific conjugation displayed marginally greater in vitro antiviral activity compared to the IFN-PEG20-IFN homo-dimer obtained by disulphide re-bridging conjugation. This result is consistent with previous observations in which enhanced retention of activity was made possible by conjugation to an N-terminal His-tag on the IFN. Comparison of the antiviral and antiproliferative activities of the two IFN homo-dimers prepared by disulphide re-bridging conjugation indicated that IFN-PEG10-IFN was more biologically active than IFN-PEG20-IFN. This result suggests that the size of PEG may influence the antiviral activity of IFN-PEG-IFN homo-dimers.
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Affiliation(s)
| | - Ji-Won Choi
- a Abzena , Babraham Research Campus , Babraham, Cambridge , UK
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28
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Liang Y, Li L, Scott RA, Kiick KL. Polymeric Biomaterials: Diverse Functions Enabled by Advances in Macromolecular Chemistry. Macromolecules 2017; 50:483-502. [PMID: 29151616 PMCID: PMC5687278 DOI: 10.1021/acs.macromol.6b02389] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Biomaterials have been extensively used to leverage beneficial outcomes in various therapeutic applications, such as providing spatial and temporal control over the release of therapeutic agents in drug delivery as well as engineering functional tissues and promoting the healing process in tissue engineering and regenerative medicine. This perspective presents important milestones in the development of polymeric biomaterials with defined structures and properties. Contemporary studies of biomaterial design have been reviewed with focus on constructing materials with controlled structure, dynamic functionality, and biological complexity. Examples of these polymeric biomaterials enabled by advanced synthetic methodologies, dynamic chemistry/assembly strategies, and modulated cell-material interactions have been highlighted. As the field of polymeric biomaterials continues to evolve with increased sophistication, current challenges and future directions for the design and translation of these materials are also summarized.
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Affiliation(s)
- Yingkai Liang
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Linqing Li
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Rebecca A. Scott
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
- Nemours-Alfred I. duPont Hospital for Children, Department of Biomedical Research, 1600 Rockland Road, Wilmington, DE 19803, USA
| | - Kristi L. Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
- Department of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA
- Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE, 19711, USA
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29
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Ozer I, Chilkoti A. Site-Specific and Stoichiometric Stealth Polymer Conjugates of Therapeutic Peptides and Proteins. Bioconjug Chem 2017; 28:713-723. [PMID: 27998056 DOI: 10.1021/acs.bioconjchem.6b00652] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
As potent and selective therapeutic agents, peptides and proteins are an important class of drugs, but they typically have suboptimal pharmacokinetic profiles. One approach to solve this problem is their conjugation with "stealth" polymers. Conventional methods for conjugation of this class of polymers to peptides and proteins are typically carried out by reactions that have poor yield and provide limited control over the site of conjugation and the stoichiometry of the conjugate. To address these limitations, new chemical and biological approaches have been developed that provide new molecular tools in the bioconjugation toolbox to create stealth polymer conjugates of peptides and proteins with exquisite control over their properties. This review article highlights these recent advances in the synthesis of therapeutic peptide- and protein-stealth polymer conjugates.
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Affiliation(s)
- Imran Ozer
- Department of Biomedical Engineering, Duke University , 101 Science Drive, Durham, North Carolina 27708, United States
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University , 101 Science Drive, Durham, North Carolina 27708, United States
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30
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Pelegri-O’Day EM, Maynard HD. Controlled Radical Polymerization as an Enabling Approach for the Next Generation of Protein-Polymer Conjugates. Acc Chem Res 2016; 49:1777-85. [PMID: 27588677 DOI: 10.1021/acs.accounts.6b00258] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Protein-polymer conjugates are unique constructs that combine the chemical properties of a synthetic polymer chain with the biological properties of a biomacromolecule. This often leads to improved stabilities, solubilities, and in vivo half-lives of the resulting conjugates, and expands the range of applications for the proteins. However, early chemical methods for protein-polymer conjugation often required multiple polymer modifications, which were tedious and low yielding. To solve these issues, work in our laboratory has focused on the development of controlled radical polymerization (CRP) techniques to improve synthesis of protein-polymer conjugates. Initial efforts focused on the one-step syntheses of protein-reactive polymers through the use of functionalized initiators and chain transfer agents. A variety of functional groups such as maleimide and pyridyl disulfide could be installed with high end-group retention, which could then react with protein functional groups through mild and biocompatible chemistries. While this grafting to method represented a significant advance in conjugation technique, purification and steric hindrance between large biomacromolecules and polymer chains often led to low conjugation yields. Therefore, a grafting from approach was developed, wherein a polymer chain is grown from an initiating site on a functionalized protein. These conjugates have demonstrated improved homogeneity, characterization, and easier purification, while maintaining protein activity. Much of this early work utilizing CRP techniques focused on polymers made up of biocompatible but nonfunctional monomer units, often containing oligoethylene glycol meth(acrylate) or N-isopropylacrylamide. These branched polymers have significant advantages compared to the historically used linear poly(ethylene glycols) including decreased viscosities and thermally responsive behavior, respectively. Recently, we were motivated to use CRP techniques to develop polymers with rationally designed and functional biological properties for conjugate preparation. Specifically, two families of saccharide-inspired polymers were developed for stabilization and activation of therapeutic biomolecules. A series of polymers with trehalose side-chains and vinyl backbones were prepared and used to stabilize proteins against heat and lyophilization stress as both conjugates and additives. These materials, which combine properties of osmolytes with nonionic surfactants, have significant potential for in vivo therapeutic use. Additionally, polymers that mimic the structure of the naturally occurring polysaccharide heparin were prepared. These polymers contained negatively charged sulfonate groups and imparted stabilization to a heparin-binding growth factor after conjugation. A screen of other sulfonated polymers led to the development of a polymer with improved heparin mimesis, enhancing both stability and activity of the protein to which it was attached. Chemical improvements over the past decade have enabled the preparation of a diverse set of protein-polymer conjugates by controlled polymerization techniques. Now, the field should thoroughly explore and expand both the range of polymer structures and also the applications available to protein-polymer conjugates. As we move beyond medicine toward broader applications, increased collaboration and interdisciplinary work will result in the further development of this exciting field.
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Affiliation(s)
- Emma M. Pelegri-O’Day
- Department of Chemistry and
Biochemistry and California Nanosystems Institute, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, United States
| | - Heather D. Maynard
- Department of Chemistry and
Biochemistry and California Nanosystems Institute, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, United States
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31
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Hou Y, Yuan J, Zhou Y, Yu J, Lu H. A Concise Approach to Site-Specific Topological Protein–Poly(amino acid) Conjugates Enabled by in Situ-Generated Functionalities. J Am Chem Soc 2016; 138:10995-1000. [DOI: 10.1021/jacs.6b05413] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yingqin Hou
- Beijing National Laboratory
for Molecular Sciences, Center for Soft Matter Science and Engineering,
Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,
College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Jingsong Yuan
- Beijing National Laboratory
for Molecular Sciences, Center for Soft Matter Science and Engineering,
Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,
College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Yu Zhou
- Beijing National Laboratory
for Molecular Sciences, Center for Soft Matter Science and Engineering,
Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,
College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Jin Yu
- Beijing National Laboratory
for Molecular Sciences, Center for Soft Matter Science and Engineering,
Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,
College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Hua Lu
- Beijing National Laboratory
for Molecular Sciences, Center for Soft Matter Science and Engineering,
Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,
College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
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32
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Chavez DE, Parrish DA, Mitchell L. Energetic Trinitro- and Fluorodinitroethyl Ethers of 1,2,4,5-Tetrazines. Angew Chem Int Ed Engl 2016; 55:8666-9. [DOI: 10.1002/anie.201604115] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Indexed: 11/07/2022]
Affiliation(s)
- David E. Chavez
- M Division; Los Alamos National Laboratory; Los Alamos NM 87545 USA
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Chavez DE, Parrish DA, Mitchell L. Energetic Trinitro- and Fluorodinitroethyl Ethers of 1,2,4,5-Tetrazines. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604115] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- David E. Chavez
- M Division; Los Alamos National Laboratory; Los Alamos NM 87545 USA
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34
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Nauka PC, Lee J, Maynard HD. Enhancing Conjugation Yield of Brush Polymer-Protein Conjugates by Increasing Linker Length at the Polymer End-Group. Polym Chem 2016; 7:2352-2357. [PMID: 27110293 PMCID: PMC4836366 DOI: 10.1039/c6py00080k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Polymers with oligoethylene glycol side chains are promising in therapeutic protein-polymer conjugates as replacements for linear polyethylene glycol (PEG). Branched PEG polymers can confer additional stability and advantageous properties compared to linear PEGs. However, branched PEG polymers suffer from low conjugation yields to proteins, likely due to steric interactions between bulky side chains of the polymer and the protein. In an effort to increase yields, the linker length between the protein-reactive functional end-group of the polymer chain and branched PEG side chain was systematically increased. This was accomplished by synthesizing four well-defined poly(poly(ethylene glycol methyl ether) acrylates) (pPEGA) with pyridyl disulfide end-groups by reversible addition-fragmentation chain transfer (RAFT) polymerization mediated by chain transfer agents (CTAs) with different linker lengths. These, along with linear PEG and poly(N-isopropylacrylamide) (pNIPAAm), were conjugated to two model proteins, bovine serum albumin (BSA) and beta-lactoglobulin (βLG). The conjugation yields were determined by gel electrophoresis. The length of the linker affected conjugation yield for both proteins. For BSA, the conjugation yield step increased from 10% to 24% when the linker was altered from 1 ethylene glycol (EG) unit to 3, with no additional increase for 4 and 6 EG units. In the case of βLG, the yield gradually increased from 9% to the 33% when the linker length was increased from 1 to 6. PEG and pNIPAAm reacted with yields as high as 75% further emphasizing the effect of steric hindrance in lowering conjugation yields.
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Affiliation(s)
- Peter C Nauka
- Department of Chemistry and Biochemistry and California NanoSystems Institute, University of California, Los Angeles, 607 Charles E. Young Drive South, Los Angeles, California 90095-1569, United States
| | - Juneyoung Lee
- Department of Chemistry and Biochemistry and California NanoSystems Institute, University of California, Los Angeles, 607 Charles E. Young Drive South, Los Angeles, California 90095-1569, United States
| | - Heather D Maynard
- Department of Chemistry and Biochemistry and California NanoSystems Institute, University of California, Los Angeles, 607 Charles E. Young Drive South, Los Angeles, California 90095-1569, United States
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35
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Design of Self-Assembling Protein-Polymer Conjugates. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 940:179-214. [PMID: 27677514 DOI: 10.1007/978-3-319-39196-0_9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Protein-polymer conjugates are of particular interest for nanobiotechnology applications because of the various and complementary roles that each component may play in composite hybrid-materials. This chapter focuses on the design principles and applications of self-assembling protein-polymer conjugate materials. We address the general design methodology, from both synthetic and genetic perspective, conjugation strategies, protein vs. polymer driven self-assembly and finally, emerging applications for conjugate materials. By marrying proteins and polymers into conjugated bio-hybrid materials, materials scientists, chemists, and biologists alike, have at their fingertips a vast toolkit for material design. These inherently hierarchical structures give rise to useful patterning, mechanical and transport properties that may help realize new, more efficient materials for energy generation, catalysis, nanorobots, etc.
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