1
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Gordon SE, Evans EGB, Otto SC, Tessmer MH, Shaffer KD, Gordon MT, Petersson EJ, Stoll S, Zagotta WN. Long-distance tmFRET using bipyridyl- and phenanthroline-based ligands. Biophys J 2024; 123:2063-2075. [PMID: 38350449 DOI: 10.1016/j.bpj.2024.01.034] [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: 10/09/2023] [Revised: 12/27/2023] [Accepted: 01/29/2024] [Indexed: 02/15/2024] Open
Abstract
With the great progress on determining protein structures over the last decade comes a renewed appreciation that structures must be combined with dynamics and energetics to understand function. Fluorescence spectroscopy, specifically Förster resonance energy transfer (FRET), provides a great window into dynamics and energetics due to its application at physiological temperatures and ability to measure dynamics on the ångström scale. We have recently advanced transition metal FRET (tmFRET) to study allosteric regulation of maltose binding protein and have reported measurements of maltose-dependent distance changes with an accuracy of ∼1.5 Å. When paired with the noncanonical amino acid Acd as a donor, our previous tmFRET acceptors were useful over a working distance of 10 to 20 Å. Here, we use cysteine-reactive bipyridyl and phenanthroline compounds as chelators for Fe2+ and Ru2+ to produce novel tmFRET acceptors to expand the working distance to as long as 50 Å, while preserving our ability to resolve even small maltose-dependent changes in distance. We compare our measured FRET efficiencies to predictions based on models using rotameric ensembles of the donors and acceptors to demonstrate that steady-state measurements of tmFRET with our new probes have unprecedented ability to measure conformational rearrangements under physiological conditions.
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Affiliation(s)
- Sharona E Gordon
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington.
| | - Eric G B Evans
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington; Department of Chemistry, University of Washington, Seattle, Washington
| | - Shauna C Otto
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington
| | - Maxx H Tessmer
- Department of Chemistry, University of Washington, Seattle, Washington
| | - Kyle D Shaffer
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Moshe T Gordon
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington
| | - E James Petersson
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Stefan Stoll
- Department of Chemistry, University of Washington, Seattle, Washington
| | - William N Zagotta
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington.
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2
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Xue E, Lee ACK, Chow KT, Ng DKP. Promotion and Detection of Cell-Cell Interactions through a Bioorthogonal Approach. J Am Chem Soc 2024; 146:17334-17347. [PMID: 38767615 PMCID: PMC11212048 DOI: 10.1021/jacs.4c04317] [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: 03/27/2024] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/22/2024]
Abstract
Manipulation of cell-cell interactions via cell surface modification is crucial in tissue engineering and cell-based therapy. To be able to monitor intercellular interactions, it can also provide useful information for understanding how the cells interact and communicate. We report herein a facile bioorthogonal strategy to promote and monitor cell-cell interactions. It involves the use of a maleimide-appended tetrazine-caged boron dipyrromethene (BODIPY)-based fluorescent probe and a maleimide-substituted bicyclo[6.1.0]non-4-yne (BCN) to modify the membrane of macrophage (RAW 264.7) and cancer (HT29, HeLa, and A431) cells, respectively, via maleimide-thiol conjugation. After modification, the two kinds of cells interact strongly through inverse electron-demand Diels-Alder reaction of the surface tetrazine and BCN moieties. The coupling also disrupts the tetrazine quenching unit, restoring the fluorescence emission of the BODIPY core on the cell-cell interface, and promotes phagocytosis. Hence, this approach can promote and facilitate the detection of intercellular interactions, rendering it potentially useful for macrophage-based immunotherapy.
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Affiliation(s)
- Evelyn
Y. Xue
- Department
of Chemistry, The Chinese University of
Hong Kong, Shatin,
N.T., Hong Kong, China
| | - Alan Chun Kit Lee
- School
of Life Sciences, The Chinese University
of Hong Kong, Shatin, N.T., Hong Kong, China
- Department
of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
| | - Kwan T. Chow
- Department
of Biomedical Sciences, City University
of Hong Kong, Kowloon, Hong Kong, China
| | - Dennis K. P. Ng
- Department
of Chemistry, The Chinese University of
Hong Kong, Shatin,
N.T., Hong Kong, China
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3
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Elkhashab M, Dilek Y, Foss M, Creemers LB, Howard KA. A Modular Albumin-Oligonucleotide Biomolecular Assembly for Delivery of Antisense Therapeutics. Mol Pharm 2024; 21:491-500. [PMID: 38214218 PMCID: PMC10848253 DOI: 10.1021/acs.molpharmaceut.3c00561] [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: 06/30/2023] [Revised: 11/16/2023] [Accepted: 12/04/2023] [Indexed: 01/13/2024]
Abstract
Antisense nucleic acid drugs are susceptible to nuclease degradation, rapid renal clearance, and short circulatory half-life. In this work, we introduce a modular-based recombinant human albumin-oligonucleotide (rHA-cODN) biomolecular assembly that allows incorporation of a chemically stabilized therapeutic gapmer antisense oligonucleotide (ASO) and FcRn-driven endothelial cellular recycling. A phosphodiester ODN linker (cODN) was conjugated to recombinant human albumin (rHA) using maleimide chemistry, after which a complementary gapmer ASO, targeting ADAMTS5 involved in osteoarthritis pathogenesis, was annealed. The rHA-cODN/ASO biomolecular assembly production, fluorescence labeling, and purity were confirmed using polyacrylamide gel electrophoresis. ASO release was triggered by DNase-mediated degradation of the linker strand, reaching 40% in serum after 72 h, with complete release observed following 30 min of incubation with DNase. Cellular internalization and trafficking of the biomolecular assembly using confocal microscopy in C28/I2 cells showed higher uptake and endosomal localization by increasing incubation time from 4 to 24 h. FcRn-mediated cellular recycling of the assembly was demonstrated in FcRn-expressing human microvascular endothelial cells. ADAMTS5 in vitro silencing efficiency reached 40%, which was comparable to free gapmer after 72 h incubation with human osteoarthritis patients' chondrocytes. This work introduces a versatile biomolecular modular-based "Plug-and-Play" platform potentially applicable for albumin-mediated half-life extension for a range of different types of ODN therapeutics.
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Affiliation(s)
- Marwa Elkhashab
- Interdisciplinary
Nanoscience Center (iNANO), Department of Molecular Biology and Genetics, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Yeter Dilek
- Department
of Orthopedics, University Medical Center
Utrecht, 3584 CT Utrecht, The Netherlands
| | - Morten Foss
- Interdisciplinary
Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus
C, Denmark
| | - Laura B. Creemers
- Department
of Orthopedics, University Medical Center
Utrecht, 3584 CT Utrecht, The Netherlands
| | - Kenneth A. Howard
- Interdisciplinary
Nanoscience Center (iNANO), Department of Molecular Biology and Genetics, Aarhus University, DK-8000 Aarhus C, Denmark
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4
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Villa R, Ferrer-Carbonell C, Paul CE. Biocatalytic reduction of alkenes in micro-aqueous organic solvent catalysed by an immobilised ene reductase. Catal Sci Technol 2023; 13:5530-5535. [PMID: 38013840 PMCID: PMC10544049 DOI: 10.1039/d3cy00541k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 05/22/2023] [Indexed: 11/29/2023]
Abstract
Biocatalytic asymmetric reduction of alkenes in organic solvent is attractive for enantiopurity and product isolation, yet remains under developed. Herein we demonstrate the robustness of an ene reductase immobilised on Celite for the reduction of activated alkenes in micro-aqueous organic solvent. Full conversion was obtained in methyl t-butyl ether, avoiding hydrolysis and racemisation of products. The immobilised ene reductase showed reusability and a scale-up demonstrated its applicability.
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Affiliation(s)
- Rocio Villa
- Biocatalysis section, Department of Biotechnology, Delft University of Biotechnology van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Claudia Ferrer-Carbonell
- Biocatalysis section, Department of Biotechnology, Delft University of Biotechnology van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Caroline E Paul
- Biocatalysis section, Department of Biotechnology, Delft University of Biotechnology van der Maasweg 9 2629 HZ Delft The Netherlands
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5
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Vinck R, Dömötör O, Karges J, Jakubaszek M, Seguin J, Tharaud M, Guérineau V, Cariou K, Mignet N, Enyedy ÉA, Gasser G. In Situ Bioconjugation of a Maleimide-Functionalized Ruthenium-Based Photosensitizer to Albumin for Photodynamic Therapy. Inorg Chem 2023; 62:15510-15526. [PMID: 37708255 DOI: 10.1021/acs.inorgchem.3c01984] [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: 09/16/2023]
Abstract
Maleimide-containing prodrugs can quickly and selectively react with circulating serum albumin following their injection in the bloodstream. The drug-albumin complex then benefits from longer blood circulation times and better tumor accumulation. Herein, we have applied this strategy to a previously reported highly phototoxic Ru polypyridyl complex-based photosensitizer to increase its accumulation at the tumor, reduce off-target cytotoxicity, and therefore improve its pharmacological profile. Specifically, two complexes were synthesized bearing a maleimide group: one complex with the maleimide directly incorporated into the bipyridyl ligand, and the other has a hydrophilic linker between the ligand and the maleimide group. Their interaction with albumin was studied in-depth, revealing their ability to efficiently bind both covalently and noncovalently to the plasma protein. A crucial finding is that the maleimide-functionalized complexes exhibited significantly lower cytotoxicity in noncancerous cells under dark conditions compared to the nonfunctionalized complex, which is a highly desirable property for a photosensitizer. The binding to albumin also led to a decrease in the phototoxicity of the Ru bioconjugates in comparison to the nonfunctionalized complex, probably due to a decreased cellular uptake. Unfortunately, this decrease in phototoxicity was not compensated by a dramatic increase in tumor accumulation, as was demonstrated in a tumor-bearing mouse model using inductively coupled plasma mass spectrometry (ICP-MS) studies. Consequently, this study provides valuable insight into the future design of in situ albumin-binding complexes for photodynamic therapy in order to maximize their effectiveness and realize their full potential.
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Affiliation(s)
- Robin Vinck
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, F-75005 Paris, France
| | - Orsolya Dömötör
- MTA-SZTE Lendület Functional Metal Complexes Research Group, Department of Molecular and Analytical Chemistry, University of Szeged, Dóm tér 7. H-6720 Szeged, Hungary
| | - Johannes Karges
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, F-75005 Paris, France
| | - Marta Jakubaszek
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, F-75005 Paris, France
| | - Johanne Seguin
- Université Paris Cité, UTCBS, INSERM, CNRS, 75006 Paris, France
| | - Mickaël Tharaud
- Biogéochimie à l'Anthropocène des Eléments et Contaminants Emergents, Institut de Physique du Globe de Paris, 75005 Paris, France
| | - Vincent Guérineau
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay, Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Kevin Cariou
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, F-75005 Paris, France
| | - Nathalie Mignet
- Université Paris Cité, UTCBS, INSERM, CNRS, 75006 Paris, France
| | - Éva A Enyedy
- MTA-SZTE Lendület Functional Metal Complexes Research Group, Department of Molecular and Analytical Chemistry, University of Szeged, Dóm tér 7. H-6720 Szeged, Hungary
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, F-75005 Paris, France
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6
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Pichon M, Drelinkiewicz D, Lozano D, Moraru R, Hayward LJ, Jones M, McCoy MA, Allstrum-Graves S, Balourdas DI, Joerger AC, Whitby RJ, Goldup SM, Wells N, Langley GJ, Herniman JM, Baud MGJ. Structure-Reactivity Studies of 2-Sulfonylpyrimidines Allow Selective Protein Arylation. Bioconjug Chem 2023; 34:1679-1687. [PMID: 37657082 PMCID: PMC10515483 DOI: 10.1021/acs.bioconjchem.3c00322] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/21/2023] [Indexed: 09/03/2023]
Abstract
Protein arylation has attracted much attention for developing new classes of bioconjugates with improved properties. Here, we have evaluated 2-sulfonylpyrimidines as covalent warheads for the mild, chemoselective, and metal free cysteine S-arylation. 2-Sulfonylpyrimidines react rapidly with cysteine, resulting in stable S-heteroarylated adducts at neutral pH. Fine tuning the heterocyclic core and exocyclic leaving group allowed predictable SNAr reactivity in vitro, covering >9 orders of magnitude. Finally, we achieved fast chemo- and regiospecific arylation of a mutant p53 protein and confirmed arylation sites by protein X-ray crystallography. Hence, we report the first example of a protein site specifically S-arylated with iodo-aromatic motifs. Overall, this study provides the most comprehensive structure-reactivity relationship to date on heteroaryl sulfones and highlights 2-sulfonylpyrimidine as a synthetically tractable and protein compatible covalent motif for targeting reactive cysteines, expanding the arsenal of tunable warheads for modern covalent ligand discovery.
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Affiliation(s)
- Maëva
M. Pichon
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
| | - Dawid Drelinkiewicz
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
| | - David Lozano
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
| | - Ruxandra Moraru
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
| | - Laura J. Hayward
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
| | - Megan Jones
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
| | - Michael A. McCoy
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
| | - Samuel Allstrum-Graves
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
| | - Dimitrios-Ilias Balourdas
- Institute
of Pharmaceutical Chemistry, Johann Wolfgang
Goethe University, Max-von-Laue-Str. 9, Frankfurt am Main 60438, Germany
- Structural
Genomics Consortium (SGC), Buchmann Institute
for Molecular Life Sciences (BMLS), Max-von-Laue-Str. 15, 60438 Frankfurt am Main, Germany
| | - Andreas C. Joerger
- Institute
of Pharmaceutical Chemistry, Johann Wolfgang
Goethe University, Max-von-Laue-Str. 9, Frankfurt am Main 60438, Germany
- Structural
Genomics Consortium (SGC), Buchmann Institute
for Molecular Life Sciences (BMLS), Max-von-Laue-Str. 15, 60438 Frankfurt am Main, Germany
| | - Richard J. Whitby
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
| | - Stephen M. Goldup
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
| | - Neil Wells
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
| | - Graham J. Langley
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
| | - Julie M. Herniman
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
| | - Matthias G. J. Baud
- School
of Chemistry, University of Southampton, Highfield, SO17 1BJ Southampton, United
Kingdom
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7
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Jadhav UA, Nagane SS, Wadgaonkar PP. Synthesis, characterization and post-modification of aromatic (Co)polyesters possessing pendant maleimide groups. HIGH PERFORM POLYM 2022. [DOI: 10.1177/09540083221127361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A new series of (co)polyesters possessing pendent maleimide groups was synthesized by low temperature solution polycondensation of 4, 4’-(5-maleimidopentane-2, 2-diyl) diphenol (BPA-MA) with isophthalic acid chloride (IPC), terephthalic acid chloride (TPC) and a mixture of TPC and IPC (50:50 mol %). Copolyesters were also synthesized by polycondensation of varying compositions of BPA-MA and bisphenol-A (BPA) with IPC. The chemical structures and compositions of (co)polyesters were confirmed by NMR spectroscopy. Inherent viscosity values and number-average molecular weights of (co)polyesters were in the range 0.50–0.76 dL/g and 17,700-32,100 g/mol, respectively, indicating the formation of reasonably high molecular weight polymers. (Co)polyesters were readily soluble in common organic solvents and could be cast into tough, transparent and flexible films from chloroform solutions. (Co)polyesters exhibited 10% weight loss and glass transition temperatures in the range 464–468 and 142–178°C, respectively. A representative copolyester possessing pendant maleimide groups was chemically modified via metal-free azide-maleimide 1,3-dipolar cycloaddition click reaction with two azido compounds, namely, (azidomethyl)benzene (Bz-N3) and 1-(azidomethyl)-pyrene (Py-N3) to yield corresponding modified copolyesters in a quantitative manner.
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Affiliation(s)
- Uday A Jadhav
- Polymers and Advanced Materials Laboratory, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory University, Pune, India
| | - Samadhan S Nagane
- Polymers and Advanced Materials Laboratory, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory University, Pune, India
- Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Prakash P Wadgaonkar
- Polymers and Advanced Materials Laboratory, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory University, Pune, India
- Academy of Scientific and Innovative Research, Ghaziabad, India
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8
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Ziegler CE, Graf M, Beck S, Goepferich AM. A novel anhydrous preparation of PEG hydrogels enables high drug loading with biologics for controlled release applications. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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9
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Abbasnia M, Sheykhan M, Ghaffari T, Safari E. Approach to the Synthesis of Unsymmetrical/Symmetrical Maleimides via Desulfitative Arylation at Different Temperatures. J Org Chem 2020; 85:11688-11698. [DOI: 10.1021/acs.joc.0c01323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Masoumeh Abbasnia
- Chemistry Department, University of Guilan, P.O. Box 41335-1914, 4193833697 Rasht, Iran
| | - Mehdi Sheykhan
- Chemistry Department, University of Guilan, P.O. Box 41335-1914, 4193833697 Rasht, Iran
| | - Tahereh Ghaffari
- Chemistry Department, University of Guilan, P.O. Box 41335-1914, 4193833697 Rasht, Iran
| | - Elham Safari
- Chemistry Department, University of Guilan, P.O. Box 41335-1914, 4193833697 Rasht, Iran
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10
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Motiwala HF, Kuo YH, Stinger BL, Palfey BA, Martin BR. Tunable Heteroaromatic Sulfones Enhance in-Cell Cysteine Profiling. J Am Chem Soc 2019; 142:1801-1810. [DOI: 10.1021/jacs.9b08831] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | | | | | - Bruce A. Palfey
- Department of Biological Chemistry, University of Michigan Medical School, 5220E MSRB III 1150 W. Medical Center Drive, Ann Arbor, Michigan 48109, United States,
| | - Brent R. Martin
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, Michigan 48109, United States
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11
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Bahou C, Spears RJ, Aliev AE, Maruani A, Fernandez M, Javaid F, Szijj PA, Baker JR, Chudasama V. Use of pyridazinediones as extracellular cleavable linkers through reversible cysteine conjugation. Chem Commun (Camb) 2019; 55:14829-14832. [PMID: 31763648 DOI: 10.1039/c9cc08362f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we report a retro-Michael deconjugation pathway of thiol-pyridazinedione linked protein bioconjugates to provide a novel cleavable linker technology. We demonstrate that the novel pyridazinedione linker does not suffer from off-target modification with blood thiols (e.g., glutathione, human serum albumin (HSA)), which is in sharp contrast to an analogous maleimide linker.
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Affiliation(s)
- Calise Bahou
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
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12
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Multi-arm PEG-maleimide conjugation intermediate characterization and hydrolysis study by a selective HPLC method. J Pharm Biomed Anal 2019; 164:452-459. [DOI: 10.1016/j.jpba.2018.11.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 11/02/2018] [Accepted: 11/03/2018] [Indexed: 12/20/2022]
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13
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Khodade VS, Toscano JP. Development of S-Substituted Thioisothioureas as Efficient Hydropersulfide Precursors. J Am Chem Soc 2018; 140:17333-17337. [DOI: 10.1021/jacs.8b08469] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Vinayak S. Khodade
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - John P. Toscano
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
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14
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Exploring the pH-Induced Functional Phase Space of Human Serum Albumin by EPR Spectroscopy. MAGNETOCHEMISTRY 2018. [DOI: 10.3390/magnetochemistry4040047] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A systematic study on the self-assembled solution system of human serum albumin (HSA) and paramagnetic doxyl stearic acid (5-DSA and 16-DSA) ligands is reported covering the broad pH range 0.7–12.9, mainly using electron paramagnetic resonance (EPR) methods. It is tested to which extent the pH-induced conformational isomers of HSA reveal themselves in continuous wave (CW) EPR spectra from this spin probing approach in comparison to an established spin-labeling strategy utilizing 3-maleimido proxyl (5-MSL). Most analyses are conducted on empirical levels with robust strategies that allow for the detection of dynamic changes of ligand, as well as protein. Special emphasis has been placed on the EPR spectroscopic detection of a molten globule (MG) state of HSA that is typically found by the fluorescent probe 8-Anilino- naphthalene-1-sulfonic acid (ANS). Moreover, four-pulse double electron-electron resonance (DEER) experiments are conducted and substantiated with dynamic light scattering (DLS) data to determine changes in the solution shape of HSA with pH. All results are ultimately combined in a detailed scheme that describes the pH-induced functional phase space of HSA.
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15
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Raycroft MAR, Racine KÉ, Rowley CN, Keillor JW. Mechanisms of Alkyl and Aryl Thiol Addition to N-Methylmaleimide. J Org Chem 2018; 83:11674-11685. [DOI: 10.1021/acs.joc.8b01638] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mark A. R. Raycroft
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Karl É. Racine
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Christopher N. Rowley
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, NL A1B 3X7, Canada
| | - Jeffrey W. Keillor
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada
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16
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Martínez-Jothar L, Doulkeridou S, Schiffelers RM, Sastre Torano J, Oliveira S, van Nostrum CF, Hennink WE. Insights into maleimide-thiol conjugation chemistry: Conditions for efficient surface functionalization of nanoparticles for receptor targeting. J Control Release 2018. [PMID: 29526739 DOI: 10.1016/j.jconrel.2018.03.002] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Maleimide-thiol chemistry is widely used for the design and preparation of ligand-decorated drug delivery systems such as poly(lactide-co-glycolide) (PLGA) based nanoparticles (NPs). While many publications on nanocarriers functionalized exploiting this strategy are available in the literature, the conditions at which this reaction takes place vary among publications. This paper presents a comprehensive study on the conjugation of the peptide cRGDfK and the nanobody 11A4 (both containing a free thiol group) to maleimide functionalized PLGA NPs by means of the maleimide-thiol click reaction. The influence of different parameters, such as the nanoparticles preparation method and storage conditions as well as the molar ratio of maleimide to ligand used for conjugation, on the reaction efficiency has been evaluated. The NPs were prepared by a single or double emulsion method using different types and concentrations of surfactants and stored at 4 or 20 °C before reaction with the targeting moieties. Several maleimide to ligand molar ratios and different reaction times were studied and the conjugation efficiency was determined by quantification of the not-bound ligand by liquid chromatography. The kind of emulsion used to prepare the NPs as well as the type and concentration of surfactant used had no effect on the conjugation efficiency. Reaction between the maleimide groups present in the NPs and cRGDfK was optimal at a maleimide to thiol molar ratio of 2:1, reaching a conjugation efficiency of 84 ± 4% after 30 min at room temperature in 10 mM HEPES pH 7.0. For 11A4 nanobody the optimal reaction efficiency, 58 ± 12%, was achieved after 2 h of incubation at room temperature in PBS pH 7.4 using a 5:1 maleimide to protein molar ratio. Storage of the NPs at 4 °C for 7 days prior to their exposure to the ligands resulted in approximately 10% decrease in the reactivity of maleimide in contrast to storage at 20 °C which led to almost 40% of the maleimide being unreactive after the same storage time. Our findings demonstrate that optimization of this reaction, particularly in terms of reactant ratios, can represent a significant increase in the conjugation efficiency and prevent considerable waste of resources.
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Affiliation(s)
- Lucía Martínez-Jothar
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, Utrecht 3584, CG, The Netherlands
| | - Sofia Doulkeridou
- Division of Cell Biology, Department of Biology, Utrecht University, Padualaan 8, Utrecht 3584, CH, The Netherlands
| | - Raymond M Schiffelers
- Clinical Chemistry and Haematology, University Medical Center Utrecht, Heidelberglaan 100, Utrecht 3584, CX, The Netherlands
| | - Javier Sastre Torano
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, Utrecht 3584, CG, The Netherlands
| | - Sabrina Oliveira
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, Utrecht 3584, CG, The Netherlands; Division of Cell Biology, Department of Biology, Utrecht University, Padualaan 8, Utrecht 3584, CH, The Netherlands
| | - Cornelus F van Nostrum
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, Utrecht 3584, CG, The Netherlands
| | - Wim E Hennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, Utrecht 3584, CG, The Netherlands.
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17
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Smith LJ, Taimoory SM, Tam RY, Baker AEG, Binth Mohammad N, Trant JF, Shoichet MS. Diels-Alder Click-Cross-Linked Hydrogels with Increased Reactivity Enable 3D Cell Encapsulation. Biomacromolecules 2018; 19:926-935. [PMID: 29443512 DOI: 10.1021/acs.biomac.7b01715] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Engineered hydrogels have been extensively used to direct cell function in 3D cell culture models, which are more representative of the native cellular microenvironment than conventional 2D cell culture. Previously, hyaluronan-furan and bis-maleimide polyethylene glycol hydrogels were synthesized via Diels-Alder chemistry at acidic pH, which did not allow encapsulation of viable cells. In order to enable gelation at physiological pH, the reaction kinetics were accelerated by replacing the hyaluronan-furan with the more electron-rich hyaluronan-methylfuran. These new click-cross-linked hydrogels gel faster and at physiological pH, enabling encapsulation of viable cells, as demonstrated with 3D culture of 5 different cancer cell lines. The methylfuran accelerates Diels-Alder cycloaddition yet also increases the retro Diels-Alder reaction. Using computational analysis, we gain insight into the mechanism of the increased Diels-Alder reactivity and uncover that transition state geometry and an unexpected hydrogen-bonding interaction are important contributors to the observed rate enhancement. This cross-linking strategy serves as a platform for bioconjugation and hydrogel synthesis for use in 3D cell culture and tissue engineering.
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Affiliation(s)
- Laura J Smith
- Department of Chemical Engineering and Applied Chemistry, Donnelly Centre , University of Toronto , 160 College Street , Toronto , Ontario M5S3E1 , Canada
| | | | - Roger Y Tam
- Department of Chemical Engineering and Applied Chemistry, Donnelly Centre , University of Toronto , 160 College Street , Toronto , Ontario M5S3E1 , Canada
| | - Alexander E G Baker
- Department of Chemical Engineering and Applied Chemistry, Donnelly Centre , University of Toronto , 160 College Street , Toronto , Ontario M5S3E1 , Canada
| | - Niema Binth Mohammad
- Department of Chemical Engineering and Applied Chemistry, Donnelly Centre , University of Toronto , 160 College Street , Toronto , Ontario M5S3E1 , Canada
| | - John F Trant
- Department of Chemistry , University of Windsor , Windsor , Ontario N9B 3P4 , Canada
| | - Molly S Shoichet
- Department of Chemical Engineering and Applied Chemistry, Donnelly Centre , University of Toronto , 160 College Street , Toronto , Ontario M5S3E1 , Canada
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18
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Forte N, Livanos M, Miranda E, Morais M, Yang X, Rajkumar VS, Chester KA, Chudasama V, Baker JR. Tuning the Hydrolytic Stability of Next Generation Maleimide Cross-Linkers Enables Access to Albumin-Antibody Fragment Conjugates and tri-scFvs. Bioconjug Chem 2018; 29:486-492. [PMID: 29384367 DOI: 10.1021/acs.bioconjchem.7b00795] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We describe investigations to expand the scope of next generation maleimide cross-linkers for the construction of homogeneous protein-protein conjugates. Diiodomaleimides are shown to offer the ideal properties of rapid bioconjugation with reduced hydrolysis, allowing the cross-linking of even sterically hindered systems. The optimized linkers are exploited to link human serum albumin to antibody fragments (Fab or scFv) as a prospective half-life extension platform, with retention of antigen binding and robust serum stability. Finally, a triprotein conjugate is formed, by linking scFv antibody fragments targeting carcinoembryonic antigen. This tri-scFv is shown to infer a combination of greater antigen avidity and increased in vivo half-life, representing a promising platform for antibody therapeutic development.
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Affiliation(s)
- Nafsika Forte
- Department of Chemistry, University College London , 20 Gordon Street, London, WC1H OAJ, United Kingdom
| | - Maria Livanos
- Cancer Institute, University College London , 72 Huntley Street, London, WC1E 6BT, United Kingdom
| | - Enrique Miranda
- Cancer Institute, University College London , 72 Huntley Street, London, WC1E 6BT, United Kingdom
| | - Maurício Morais
- Department of Chemistry, University College London , 20 Gordon Street, London, WC1H OAJ, United Kingdom
| | - Xiaoping Yang
- Department of Chemistry, University College London , 20 Gordon Street, London, WC1H OAJ, United Kingdom
| | - Vineeth S Rajkumar
- Cancer Institute, University College London , 72 Huntley Street, London, WC1E 6BT, United Kingdom
| | - Kerry A Chester
- Cancer Institute, University College London , 72 Huntley Street, London, WC1E 6BT, United Kingdom
| | - Vijay Chudasama
- Department of Chemistry, University College London , 20 Gordon Street, London, WC1H OAJ, United Kingdom.,Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa , 1649-004 Lisbon, Portugal
| | - James R Baker
- Department of Chemistry, University College London , 20 Gordon Street, London, WC1H OAJ, United Kingdom
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19
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Tan XJ, Wang C, Guo XK. Theoretical study on the ring-opening hydrolysis reactions of N-alkylmaleimide dimers. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2017.12.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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20
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Gregoritza M, Messmann V, Abstiens K, Brandl FP, Goepferich AM. Controlled Antibody Release from Degradable Thermoresponsive Hydrogels Cross-Linked by Diels–Alder Chemistry. Biomacromolecules 2017. [DOI: 10.1021/acs.biomac.7b00587] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Manuel Gregoritza
- Department of Pharmaceutical
Technology, Faculty of Chemistry and Pharmacy, University of Regensburg, 93040 Regensburg, Germany
| | - Viktoria Messmann
- Department of Pharmaceutical
Technology, Faculty of Chemistry and Pharmacy, University of Regensburg, 93040 Regensburg, Germany
| | - Kathrin Abstiens
- Department of Pharmaceutical
Technology, Faculty of Chemistry and Pharmacy, University of Regensburg, 93040 Regensburg, Germany
| | - Ferdinand P. Brandl
- Department of Pharmaceutical
Technology, Faculty of Chemistry and Pharmacy, University of Regensburg, 93040 Regensburg, Germany
| | - Achim M. Goepferich
- Department of Pharmaceutical
Technology, Faculty of Chemistry and Pharmacy, University of Regensburg, 93040 Regensburg, Germany
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21
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Boyatzis AE, Bringans SD, Piggott MJ, Duong MN, Lipscombe RJ, Arthur PG. Limiting the Hydrolysis and Oxidation of Maleimide–Peptide Adducts Improves Detection of Protein Thiol Oxidation. J Proteome Res 2017; 16:2004-2015. [DOI: 10.1021/acs.jproteome.6b01060] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Amber E. Boyatzis
- School
of Chemistry and Biochemistry, University of Western Australia, Crawley, Western Australia 6009, Australia
| | | | - Matthew J. Piggott
- School
of Chemistry and Biochemistry, University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Marisa N. Duong
- School
of Chemistry and Biochemistry, University of Western Australia, Crawley, Western Australia 6009, Australia
| | | | - Peter G. Arthur
- School
of Chemistry and Biochemistry, University of Western Australia, Crawley, Western Australia 6009, Australia
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22
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Tan XJ, Cheng SS, Shi Y, Xing DX, Liu Y, Li H, Feng WQ, Yang JB. Hydrolytic degradation of N , N ′-ethylenedimaleimide: Crystal structures of key intermediates and proposed mechanisms. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.07.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Mukhortava A, Schlierf M. Efficient Formation of Site-Specific Protein–DNA Hybrids Using Copper-Free Click Chemistry. Bioconjug Chem 2016; 27:1559-63. [DOI: 10.1021/acs.bioconjchem.6b00120] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ann Mukhortava
- B CUBE − Center for
Molecular Bioengineering, Technische Universität Dresden, Arnoldstraße
18, 01307 Dresden, Germany
| | - Michael Schlierf
- B CUBE − Center for
Molecular Bioengineering, Technische Universität Dresden, Arnoldstraße
18, 01307 Dresden, Germany
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24
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Okamoto Y, Köhler V, Paul CE, Hollmann F, Ward TR. Efficient In Situ Regeneration of NADH Mimics by an Artificial Metalloenzyme. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00258] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yasunori Okamoto
- Department
of Chemistry, University of Basel, Spitalstrasse 51, CH-4056 Basel, Switzerland
| | - Valentin Köhler
- Department
of Chemistry, University of Basel, Spitalstrasse 51, CH-4056 Basel, Switzerland
| | - Caroline E. Paul
- Department
of Biotechnology, Delft University of Technology, Julianalaan 136, 2628BL Delft, The Netherlands
| | - Frank Hollmann
- Department
of Biotechnology, Delft University of Technology, Julianalaan 136, 2628BL Delft, The Netherlands
| | - Thomas R. Ward
- Department
of Chemistry, University of Basel, Spitalstrasse 51, CH-4056 Basel, Switzerland
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25
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Stewart SA, Backholm M, Burke NAD, Stöver HDH. Cross-Linked Hydrogels Formed through Diels-Alder Coupling of Furan- and Maleimide-Modified Poly(methyl vinyl ether-alt-maleic acid). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:1863-1870. [PMID: 26800849 DOI: 10.1021/acs.langmuir.5b04450] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The Diels-Alder [4 + 2] cycloaddition between furan- and maleimide-functional polyanions was used to form cross-linked synthetic polymer hydrogels. Poly(methyl vinyl ether-alt-maleic anhydride) was reacted with furfurylamine or N-(2-aminoethyl)maleimide in acetonitrile to form pairs of furan- and maleimide-functionalized poly(methyl vinyl ether-alt-maleic acid)s. Mixtures of these mutually reactive polyanions in water gelled within 15 min to 18 h, depending on degree of functionalization and polymer concentrations. Solution and magic-angle spinning (1)H NMR were used to confirm the formation of the Diels-Alder adduct, to analyze competing hydrolytic side reactions, and demonstrate postgelation functionalization. The effect of the degree of furan and maleimide functionalization, polymer concentration, pH, and calcium ion concentration, on gelation time, gel mechanical properties, and equilibrium swelling, are described. Release of dextran as a model drug was studied using fluorescence spectroscopy, as a function of gel composition and calcium treatment.
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Affiliation(s)
- S Alison Stewart
- Department of Chemistry and Chemical Biology and ‡Department of Physics and Astronomy, McMaster University , Hamilton, Ontario L8S 4M1, Canada
| | - Matilda Backholm
- Department of Chemistry and Chemical Biology and ‡Department of Physics and Astronomy, McMaster University , Hamilton, Ontario L8S 4M1, Canada
| | - Nicholas A D Burke
- Department of Chemistry and Chemical Biology and ‡Department of Physics and Astronomy, McMaster University , Hamilton, Ontario L8S 4M1, Canada
| | - Harald D H Stöver
- Department of Chemistry and Chemical Biology and ‡Department of Physics and Astronomy, McMaster University , Hamilton, Ontario L8S 4M1, Canada
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26
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Gregoritza M, Messmann V, Goepferich AM, Brandl FP. Design of hydrogels for delayed antibody release utilizing hydrophobic association and Diels–Alder chemistry in tandem. J Mater Chem B 2016; 4:3398-3408. [DOI: 10.1039/c6tb00223d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrophobic association enables delayed antibody release from hydrogels cross-linked via Diels–Alder reaction.
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Affiliation(s)
- Manuel Gregoritza
- Department of Pharmaceutical Technology
- Faculty of Chemistry and Pharmacy
- University of Regensburg
- 93040 Regensburg
- Germany
| | - Viktoria Messmann
- Department of Pharmaceutical Technology
- Faculty of Chemistry and Pharmacy
- University of Regensburg
- 93040 Regensburg
- Germany
| | - Achim M. Goepferich
- Department of Pharmaceutical Technology
- Faculty of Chemistry and Pharmacy
- University of Regensburg
- 93040 Regensburg
- Germany
| | - Ferdinand P. Brandl
- Department of Pharmaceutical Technology
- Faculty of Chemistry and Pharmacy
- University of Regensburg
- 93040 Regensburg
- Germany
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27
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Chen Y, Tsao K, De Francesco É, Keillor JW. Ring Substituent Effects on the Thiol Addition and Hydrolysis Reactions of N-Arylmaleimides. J Org Chem 2015; 80:12182-92. [DOI: 10.1021/acs.joc.5b02036] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yingche Chen
- Department of Chemistry and
Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Kelvin Tsao
- Department of Chemistry and
Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Élise De Francesco
- Department of Chemistry and
Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Jeffrey W. Keillor
- Department of Chemistry and
Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, Ontario K1N 6N5, Canada
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28
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Nadler W, Berg R, Walch P, Hanke S, Baalmann M, Kerner A, Trumpp A, Roesli C. Ion source-dependent performance of 4-vinylpyridine, iodoacetamide, and N-maleoyl derivatives for the detection of cysteine-containing peptides in complex proteomics. Anal Bioanal Chem 2015; 408:2055-67. [DOI: 10.1007/s00216-015-9113-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 10/05/2015] [Accepted: 10/09/2015] [Indexed: 01/03/2023]
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29
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Gilbert T, Smeets NMB, Hoare T. Injectable Interpenetrating Network Hydrogels via Kinetically Orthogonal Reactive Mixing of Functionalized Polymeric Precursors. ACS Macro Lett 2015; 4:1104-1109. [PMID: 35614812 DOI: 10.1021/acsmacrolett.5b00362] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The enhanced mechanics, unique chemistries, and potential for domain formation in interpenetrating network (IPN) hydrogels have attracted significant interest in the context of biomedical applications. However, conventional IPNs are not directly injectable in a biological context, limiting their potential utility in such applications. Herein, we report a fully injectable and thermoresponsive interpenetrating polymer network formed by simultaneous reactive mixing of hydrazone cross-linked poly(N-isopropylacrylamide) (PNIPAM), and thiosuccinimide cross-linked poly(N-vinylpyrrolidone) (PVP). The resulting IPN gels rapidly (<1 min) after injection without the need for heat, UV irradiation, or small-molecule cross-linkers. The IPNs, cross-linked by kinetically orthogonal mechanisms, showed a significant synergistic enhancement in shear storage modulus compared to the individual component networks as well as distinctive pore morphology, degradation kinetics, and thermal swelling; in particular, significantly lower hysteresis was observed over the thermal phase transition relative to single-network PNIPAM hydrogels.
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Affiliation(s)
- Trevor Gilbert
- Department of Chemical Engineering, McMaster University, 1280 Main
Street West, Hamilton, Ontario L8S 4L7, Canada
| | - Niels M. B. Smeets
- Department of Chemical Engineering, McMaster University, 1280 Main
Street West, Hamilton, Ontario L8S 4L7, Canada
| | - Todd Hoare
- Department of Chemical Engineering, McMaster University, 1280 Main
Street West, Hamilton, Ontario L8S 4L7, Canada
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30
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Kirchhof S, Gregoritza M, Messmann V, Hammer N, Goepferich AM, Brandl FP. Diels–Alder hydrogels with enhanced stability: First step toward controlled release of bevacizumab. Eur J Pharm Biopharm 2015; 96:217-25. [DOI: 10.1016/j.ejpb.2015.07.024] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 07/14/2015] [Accepted: 07/29/2015] [Indexed: 12/26/2022]
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31
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Koniev O, Wagner A. Developments and recent advancements in the field of endogenous amino acid selective bond forming reactions for bioconjugation. Chem Soc Rev 2015; 44:5495-551. [PMID: 26000775 DOI: 10.1039/c5cs00048c] [Citation(s) in RCA: 390] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Bioconjugation methodologies have proven to play a central enabling role in the recent development of biotherapeutics and chemical biology approaches. Recent endeavours in these fields shed light on unprecedented chemical challenges to attain bioselectivity, biocompatibility, and biostability required by modern applications. In this review the current developments in various techniques of selective bond forming reactions of proteins and peptides were highlighted. The utility of each endogenous amino acid-selective conjugation methodology in the fields of biology and protein science has been surveyed with emphasis on the most relevant among reported transformations; selectivity and practical use have been discussed.
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Affiliation(s)
- Oleksandr Koniev
- Laboratory of Functional Chemo-Systems (UMR 7199), Labex Medalis, University of Strasbourg, 74 Route du Rhin, 67401 Illkirch-Graffenstaden, France.
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32
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Göstl R, Hecht S. Photoreversible prodrugs and protags: switching the release of maleimides by using light under physiological conditions. Chemistry 2015; 21:4422-7. [PMID: 25652565 DOI: 10.1002/chem.201405767] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Indexed: 12/15/2022]
Abstract
A water-soluble furyl-substituted diarylethene derivative has been prepared that can undergo reversible Diels-Alder reactions with maleimides to yield photoswitchable Diels-Alder adducts. Employing bioorthogonal visible light, the release of therapeutically effective concentrations of maleimide-based reactive inhibitors or labels from these "prodrugs" or "protags" could be photoreversibly triggered in buffered, aqueous solution at body temperature. It is shown how the release properties can be fine-tuned and a thorough investigation of the release dynamics is presented. Our system should allow for spatiotemporal control over the inhibition and labeling of specific protein targets and is ready to be surveyed in living organisms.
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Affiliation(s)
- Robert Göstl
- Laboratory of Organic Chemistry and Functional Materials, Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin (Germany)
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33
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Kirchhof S, Strasser A, Wittmann HJ, Messmann V, Hammer N, Goepferich AM, Brandl FP. New insights into the cross-linking and degradation mechanism of Diels–Alder hydrogels. J Mater Chem B 2015; 3:449-457. [DOI: 10.1039/c4tb01680g] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Degradation of Diels–Alder hydrogels occurs by retro-Diels–Alder reaction followed by OH−-catalyzed ring-opening hydrolysis of maleimide groups to unreactive maleamic acid derivatives.
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Affiliation(s)
- Susanne Kirchhof
- Department of Pharmaceutical Technology
- Faculty of Chemistry and Pharmacy
- University of Regensburg
- 93040 Regensburg
- Germany
| | - Andrea Strasser
- Department of Pharmaceutical and Medicinal Chemistry II
- Faculty of Chemistry and Pharmacy
- University of Regensburg
- 93040 Regensburg
- Germany
| | - Hans-Joachim Wittmann
- Department of Pharmaceutical and Medicinal Chemistry II
- Faculty of Chemistry and Pharmacy
- University of Regensburg
- 93040 Regensburg
- Germany
| | - Viktoria Messmann
- Department of Pharmaceutical Technology
- Faculty of Chemistry and Pharmacy
- University of Regensburg
- 93040 Regensburg
- Germany
| | - Nadine Hammer
- Department of Pharmaceutical Technology
- Faculty of Chemistry and Pharmacy
- University of Regensburg
- 93040 Regensburg
- Germany
| | - Achim M. Goepferich
- Department of Pharmaceutical Technology
- Faculty of Chemistry and Pharmacy
- University of Regensburg
- 93040 Regensburg
- Germany
| | - Ferdinand P. Brandl
- Department of Pharmaceutical Technology
- Faculty of Chemistry and Pharmacy
- University of Regensburg
- 93040 Regensburg
- Germany
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34
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Fontaine SD, Reid R, Robinson L, Ashley GW, Santi DV. Long-Term Stabilization of Maleimide–Thiol Conjugates. Bioconjug Chem 2014; 26:145-52. [DOI: 10.1021/bc5005262] [Citation(s) in RCA: 230] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Shaun D. Fontaine
- ProLynx, 455 Mission
Bay Blvd. South, Suite 145, San Francisco, California 94158, United States
| | - Ralph Reid
- ProLynx, 455 Mission
Bay Blvd. South, Suite 145, San Francisco, California 94158, United States
| | - Louise Robinson
- ProLynx, 455 Mission
Bay Blvd. South, Suite 145, San Francisco, California 94158, United States
| | - Gary W. Ashley
- ProLynx, 455 Mission
Bay Blvd. South, Suite 145, San Francisco, California 94158, United States
| | - Daniel V. Santi
- ProLynx, 455 Mission
Bay Blvd. South, Suite 145, San Francisco, California 94158, United States
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35
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Zhu J, Chin J, Wängler C, Wängler B, Lennox RB, Schirrmacher R. Rapid (18)F-labeling and loading of PEGylated gold nanoparticles for in vivo applications. Bioconjug Chem 2014; 25:1143-50. [PMID: 24807200 DOI: 10.1021/bc5001593] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Water-soluble 3 nm maleimide-terminated PEGylated gold nanoparticles (maleimide-AuNP) were synthesized in both partially hydrolyzed and nonhydrolyzed forms. Both of these maleimide-AuNPs, when reacted with the silicon-fluorine prosthetic group [(18)F]SiFA-SH, resulted in radiolabeled AuNPs. These NPs were readily purified with high radiochemical yields (RCY) of 60-80% via size exclusion chromatography. Preliminary small animal positron emission tomography (PET) measurements in healthy rats gives information about the pathway of excretion and the stability of the radioactive label in vivo. The partially hydrolyzed [(18)F]SiFA-maleimide-AuNPs shows uptake in the brain region of interest (ROI) (> 0.13%ID/g) which was confirmed by ex vivo examination of the thoroughly perfused rat brain. The multiple maleimide end groups on the AuNP surface also allows for the simultaneous incorporation of [(18)F]SiFA-SH and a bioactive peptide (cysteine-modified octreotate, cys-TATE, which can bind to somatostatin receptor subtypes 2 and 5) in a proof-of-concept study. The well-defined Michael addition reaction between various thiol containing molecules and the multifunctionalized maleimide-AuNPs thus offers an opportunity to develop a new bioconjugation platform for new diagnostics as well as therapeutics.
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Affiliation(s)
- Jun Zhu
- Montreal Neurological Institute & Hospital, McGill University , 3801 University Street, Montreal, Quebec H3A 2B4, Canada
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36
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Nathani RI, Chudasama V, Ryan CP, Moody PR, Morgan RE, Fitzmaurice RJ, Smith MEB, Baker JR, Caddick S. Reversible protein affinity-labelling using bromomaleimide-based reagents. Org Biomol Chem 2013; 11:2408-11. [PMID: 23462873 PMCID: PMC3763775 DOI: 10.1039/c3ob40239h] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Accepted: 02/26/2013] [Indexed: 12/21/2022]
Abstract
Reversible protein biotinylation is readily affected via conjugation with a bromomaleimide-based reagent followed by reductive cleavage. The intermediate biotinylated protein constructs are stable at physiological temperature and pH 8.0. Quantitative reversibility is elegantly delivered under mild conditions of using a stoichiometric amount of a bis-thiol, thus providing an approach that will be of general interest in chemical biology and proteomics.
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Affiliation(s)
- Ramiz I. Nathani
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; Fax: +44 (0)20 7679 7463 ; Tel: +44(0)20 3108 5071
| | - Vijay Chudasama
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; Fax: +44 (0)20 7679 7463 ; Tel: +44(0)20 3108 5071
| | - Chris P. Ryan
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; Fax: +44 (0)20 7679 7463 ; Tel: +44(0)20 3108 5071
| | - Paul R. Moody
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; Fax: +44 (0)20 7679 7463 ; Tel: +44(0)20 3108 5071
| | - Rachel E. Morgan
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; Fax: +44 (0)20 7679 7463 ; Tel: +44(0)20 3108 5071
| | - Richard J. Fitzmaurice
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; Fax: +44 (0)20 7679 7463 ; Tel: +44(0)20 3108 5071
| | - Mark E. B. Smith
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; Fax: +44 (0)20 7679 7463 ; Tel: +44(0)20 3108 5071
| | - James R. Baker
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; Fax: +44 (0)20 7679 7463 ; Tel: +44(0)20 3108 5071
| | - Stephen Caddick
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; Fax: +44 (0)20 7679 7463 ; Tel: +44(0)20 3108 5071
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Koehler KC, Anseth KS, Bowman CN. Diels–Alder Mediated Controlled Release from a Poly(ethylene glycol) Based Hydrogel. Biomacromolecules 2013; 14:538-47. [DOI: 10.1021/bm301789d] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kenneth Christopher Koehler
- Department
of Chemical and Biological Engineering and the ‡Howard Hughes Medical Institute, University of Colorado−Boulder, 3415 Colorado Avenue, UCB 596 JSC Biotech Building 530, Boulder,
Colorado 80303-0596, United States
| | - Kristi S. Anseth
- Department
of Chemical and Biological Engineering and the ‡Howard Hughes Medical Institute, University of Colorado−Boulder, 3415 Colorado Avenue, UCB 596 JSC Biotech Building 530, Boulder,
Colorado 80303-0596, United States
| | - Christopher N. Bowman
- Department
of Chemical and Biological Engineering and the ‡Howard Hughes Medical Institute, University of Colorado−Boulder, 3415 Colorado Avenue, UCB 596 JSC Biotech Building 530, Boulder,
Colorado 80303-0596, United States
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38
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Baldwin AD, Kiick KL. Reversible maleimide-thiol adducts yield glutathione-sensitive poly(ethylene glycol)-heparin hydrogels. Polym Chem 2013; 4:133-143. [PMID: 23766781 DOI: 10.1039/c2py20576a] [Citation(s) in RCA: 123] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We have recently reported that retro Michael-type addition reactions can be employed for producing labile chemical linkages with tunable sensitivity to physiologically relevant reducing potentials. We reasoned that such strategies would also be useful in the design of glutathione-sensitive hydrogels for a variety of targeted delivery and tissue engineering applications. In this report, we describe hydrogels in which maleimide-functionalized low molecular weight heparin (LMWH) is crosslinked with various thiol-functionalized poly(ethylene glycol) (PEG) multi-arm star polymers. Judicious selection of the chemical identity of the thiol permits tuning of degradation via previously unstudied, but versatile chemical methods. Thiol pKa and hydrophobicity affected both the gelation and degradation of these hydrogels. Maleimide-thiol crosslinking reactions and retro Michael-type addition reactions were verified with 1H NMR during the crosslinking and degradation of hydrogels. PEGs esterified with phenylthiol derivatives, specifically 4-mercaptophenylpropionic acid or 2,2-dimethyl-3-(4-mercaptophenyl)propionic acid, induced sensitivity to glutathione as shown by a decrease in hydrogel degradation time of 4-fold and 5-fold respectively, measured via spectrophotometric quantification of LMWH. The degradation proceeded through the retro Michael-type addition of the succinimide thioether linkage, with apparent pseudo-first order reaction constants derived from oscillatory rheology experiments of 0.039 ± 0.006 h-1 and 0.031 ± 0.003 h-1. The pseudo-first order retro reaction constants were approximately an order of magnitude slower than the degradation rate constants for hydrogels crosslinked via disulfide linkages, indicating the potential use of these Michael-type addition products for reduction-mediated release and/or degradation, with increased blood stability and prolonged drug delivery timescales compared to disulfide moieties.
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Affiliation(s)
- Aaron D Baldwin
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE 19716, USA
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Tappertzhofen K, Metz VV, Hubo M, Barz M, Postina R, Jonuleit H, Zentel R. Synthesis of Maleimide-Functionalyzed HPMA-Copolymers and in vitro Characterization of the aRAGE- and Human Immunoglobulin (huIgG)-Polymer Conjugates. Macromol Biosci 2012; 13:203-14. [DOI: 10.1002/mabi.201200344] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 10/20/2012] [Indexed: 11/05/2022]
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40
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Feldborg LN, Jølck RI, Andresen TL. Quantitative Evaluation of Bioorthogonal Chemistries for Surface Functionalization of Nanoparticles. Bioconjug Chem 2012; 23:2444-50. [DOI: 10.1021/bc3005057] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lise N. Feldborg
- DTU Nanotech,
Department of Micro- and Nanotechnology, Technical University of Denmark, Building 423 2800
Lyngby, Denmark
| | - Rasmus I. Jølck
- DTU Nanotech,
Department of Micro- and Nanotechnology, Technical University of Denmark, Building 423 2800
Lyngby, Denmark
| | - Thomas L. Andresen
- DTU Nanotech,
Department of Micro- and Nanotechnology, Technical University of Denmark, Building 423 2800
Lyngby, Denmark
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Manley-King CI, Terre’Blanche G, Castagnoli N, Bergh JJ, Petzer JP. Inhibition of monoamine oxidase B by N-methyl-2-phenylmaleimides. Bioorg Med Chem 2009; 17:3104-10. [DOI: 10.1016/j.bmc.2009.03.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Revised: 03/02/2009] [Accepted: 03/03/2009] [Indexed: 11/28/2022]
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42
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Kalia J, Raines RT. Catalysis of imido group hydrolysis in a maleimide conjugate. Bioorg Med Chem Lett 2007; 17:6286-9. [PMID: 17881230 PMCID: PMC2245990 DOI: 10.1016/j.bmcl.2007.09.002] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2007] [Revised: 08/30/2007] [Accepted: 09/04/2007] [Indexed: 11/28/2022]
Abstract
Maleimides are often used for biomolecular conjugation with thiols. An underappreciated aspect of the imido group in a maleimide conjugate is its susceptibility to spontaneous hydrolysis, resulting in undesirable heterogeneity. Here, a chromophoric maleimide is used to demonstrate that both molybdate and chromate catalyze the hydrolysis of an imido group near neutral pH. Tungstate and 4-(dimethylamino)pyridine are less effective as catalysts. This work reveals a new mode of chemical reactivity for molybdate and chromate, and provides a strategy for decreasing the heterogeneity of bioconjugates derived from maleimides.
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Affiliation(s)
- Jeet Kalia
- Department of Biochemistry, University of Wisconsin–Madison, Madison, WI 53706, USA
| | - Ronald T. Raines
- Department of Biochemistry, University of Wisconsin–Madison, Madison, WI 53706, USA
- Department of Chemistry, University of Wisconsin–Madison, Madison, WI 53706, USA
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Uchiyama S, Tomita R, Sekioka N, Imaizumi E, Hamana H, Hagiwara T. Application of polymaleimidostyrene as a convenient immobilization reagent of enzyme in biosensor. Bioelectrochemistry 2006; 68:119-25. [PMID: 16039167 DOI: 10.1016/j.bioelechem.2005.06.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2005] [Revised: 06/01/2005] [Accepted: 06/03/2005] [Indexed: 11/30/2022]
Abstract
Sulfhydryl groups of glucose oxidase (GOD) were reacted with maleimide groups of polymaleimidostyrene (PMS) which was coated onto the porous carbon sheet, and the carbon sheet immobilized by GOD was combined with an oxygen electrode to fabricate a glucose sensor. The activity of thiolated GOD immobilized to PMS is much larger than that of native GOD immobilized to PMS. The good linear relationship of glucose and oxygen current response was obtained in a concentration range from 0.1 to 2 mM and upper limit of linear range was found to be 3.0 mM. The immobilized GOD activity is highly dependent on pH at immobilization and the maximum activity was obtained at pH 5.5, probably because the SH groups of GOD that are indispensable for generation of enzyme activity is not exposed at this pH. It was found that PMS is very effective reagent to immobilize enzyme strongly via covalent bond, because high density of maleimide groups of PMS can catch not only exposed SH groups but also buried SH groups.
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Affiliation(s)
- Shunichi Uchiyama
- Department of Materials Science and Technology, Graduate School of Engineering, Saitama Institute of technology, 1690 Fusaiji, Okabe, Saitama 369-0293 Japan.
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Fernández E, García-Río L, Leis JR, Mejuto JC, Pérez-Lorenzo M. Michael addition and ester aminolysis in w/o AOT-based microemulsions. NEW J CHEM 2005. [DOI: 10.1039/b507190a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Ahmed N, Tsang WY, Page MI. Acyl vs Sulfonyl Transfer in N-Acyl β-Sultams and 3-Oxo-β-sultams. Org Lett 2003; 6:201-3. [PMID: 14723528 DOI: 10.1021/ol0361305] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] N-Acylsulfonamides usually react with nucleophiles by acyl transfer and C-N bond fission. However, the hydrolysis of N-acyl beta-sultams is a sulfonyl transfer reaction that occurs with S-N fission and opening of the four-membered ring. Similar to other beta-sultams, the N-acyl derivatives are at least 10(6)-fold more reactive than N-acyl sulfonamides. 3-Oxo-beta-sultams are both beta-lactams and beta-sultams but also hydrolyze with preferential S-N bond fission.
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Affiliation(s)
- Naveed Ahmed
- Department of Chemical and Biological Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK
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46
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Khan MN. Aqueous degradation of N-(hydroxymethyl)phthalimide in the presence of specific and general bases. Kinetic assessment of N-hydroxymethyl derivatives of nitrogen heterocycles as possible prodrugs. J Pharm Biomed Anal 1989; 7:685-91. [PMID: 2490772 DOI: 10.1016/0731-7085(89)80112-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The conversion of N-(hydroxymethyl)phthalimide (NHPH) to phthalimide could not be detected within 300 s at pH 9.0, whereas in 0.18 M NaOH complete conversion of NHPH to phthalimide was observed within 50 s. In the presence of 0.2-0.4 M 1,4-diazabicyclo[2.2.2]octane buffer solutions (pH 9.30-9.54), 40-60% conversion of NHPH to phthalimide occurred within 90-120 s. The initial concentration of NHPH affected the extent of conversion of NHPH to phthalimide.
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Affiliation(s)
- M N Khan
- Department of Chemistry, Bayero University, Kano, Nigeria
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