1
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El Hawari K, Hurtaud-Pessel D, Verdon E. A new derivatizing reagent for the determination of 5-nitro-2-furaldehyde in trout muscle by liquid chromatography-tandem mass spectrometry. Talanta 2024; 275:126084. [PMID: 38608344 DOI: 10.1016/j.talanta.2024.126084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 04/14/2024]
Abstract
The 5-nitro-2-furaldehyde (5-NF) is an aldehyde aromatic organic compound that has been envisaged as an alternative marker for detecting nitrofurazone treatment abuse and to avoid the false positive results induced by the semicarbazide. Analyzing 5-NF presents challenges, and its derivatization reaction with hydrazine reagents is required to enhance the capability of its detection and its identification. This study aims at developping an analytical method for 5-NF determination in trout muscle samples based on chemical derivatization prior to analysis by liquid chromatography-tandem mass spectrometry. Four commercially available hydrazine reagents, namely: N,N-Dimethylhydrazine (DMH), 4-Hydrazinobenzoic acid (HBA), 2,4-Dichlorophenylhydrazine (2,4-DCPH) and 2,6-Dichlorophenylhydrazine (2,6-DCPH) were proposed for the first time as derivatizing reagents in the analysis of 5-NF. The derivatization reaction was simultaneously performed along with the extraction method in acidic condition using ultrasonic assistance and followed by liquid extraction using acetonitrile. The efficiency of the chemical reaction with 5-NF was examined and the reaction conditions including the concentration of hydrochloric acid, pH, temperature, reaction time and the concentration of the derivatizing reagents were optimized. Experiments with fortified samples demonstrated that 2,4-DCPH derivatizing reagent at 20 mM for 20 min of ultrasonic treatment under acidic condition (pH 4) gave an effective sample derivatization method for 5-NF analysis. Under the optimized conditions, the calibration curves were linear from 0.25 to 2 μg kg-1 with coefficient of determination >0.99. The recoveries ranged from 89 % to 116 % and precision was less than 13 %. The limit of detection and quantification were 0.1 and 0.2 μg kg-1, respectively.
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Affiliation(s)
- Khaled El Hawari
- ANSES Fougeres Laboratory, French Agency for Food, Environment and Occupational Health & Safety, French and European Union Reference Laboratory for Veterinary Medicinal Product Residues and Pharmacologically Active Dye Residues in Food, 10 B rue Claude Bourgelat - Javené, CS 40608, 35306, Fougères, Cedex, France.
| | - Dominique Hurtaud-Pessel
- ANSES Fougeres Laboratory, French Agency for Food, Environment and Occupational Health & Safety, French and European Union Reference Laboratory for Veterinary Medicinal Product Residues and Pharmacologically Active Dye Residues in Food, 10 B rue Claude Bourgelat - Javené, CS 40608, 35306, Fougères, Cedex, France
| | - Eric Verdon
- ANSES Fougeres Laboratory, French Agency for Food, Environment and Occupational Health & Safety, French and European Union Reference Laboratory for Veterinary Medicinal Product Residues and Pharmacologically Active Dye Residues in Food, 10 B rue Claude Bourgelat - Javené, CS 40608, 35306, Fougères, Cedex, France
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2
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Wang S, Xiang R, Liao P, Kang J, Li S, Mao M, Liu L, Li G. Highly Efficient One-pot Electrosynthesis of Oxime Ethers from NOx over Ultrafine MgO Nanoparticles Derived from Mg-based Metal-Organic Frameworks. Angew Chem Int Ed Engl 2024; 63:e202405553. [PMID: 38594220 DOI: 10.1002/anie.202405553] [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: 03/21/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/11/2024]
Abstract
Oxime ethers are attractive compounds in medicinal scaffolds due to the biological and pharmaceutical properties, however, the crucial and widespread step of industrial oxime formation using explosive hydroxylamine (NH2OH) is insecure and troublesome. Herein, we present a convenient method of oxime ether synthesis in a one-pot tandem electrochemical system using magnesium based metal-organic framework-derived magnesium oxide anchoring in self-supporting carbon nanofiber membrane catalyst (MgO-SCM), the in situ produced NH2OH from nitrogen oxides electrocatalytic reduction coupled with aldehyde to produce 4-cyanobenzaldoxime with a selectivity of 93 % and Faraday efficiency up to 65.1 %, which further reacted with benzyl bromide to directly give oxime ether precipitate with a purity of 97 % by convenient filtering separation. The high efficiency was attributed to the ultrafine MgO nanoparticles in MgO-SCM, effectively inhibiting hydrogen evolution reaction and accelerating the production of NH2OH, which rapidly attacked carbonyl of aldehydes to form oximes, but hardly crossed the hydrogenation barrier of forming amines, thus leading to a high yield of oxime ether when coupling benzyl bromide nucleophilic reaction. This work highlights the importance of kinetic control in complex electrosynthetic organonitrogen system and demonstrates a green and safe alternative method for synthesis of organic nitrogen drug molecules.
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Affiliation(s)
- Shihan Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Lehn Institute of Functional Materials, Institute of Green Chemistry and Molecular Engineering, Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Runan Xiang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Lehn Institute of Functional Materials, Institute of Green Chemistry and Molecular Engineering, Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Peisen Liao
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Lehn Institute of Functional Materials, Institute of Green Chemistry and Molecular Engineering, Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jiawei Kang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Lehn Institute of Functional Materials, Institute of Green Chemistry and Molecular Engineering, Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Suisheng Li
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Lehn Institute of Functional Materials, Institute of Green Chemistry and Molecular Engineering, Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Min Mao
- Multi-scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Lingmei Liu
- Multi-scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Guangqin Li
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Lehn Institute of Functional Materials, Institute of Green Chemistry and Molecular Engineering, Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
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3
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Akam-Baxter EA, Bergemann D, Ridley SJ, To S, Andrea B, Moon B, Ma H, Zhou Y, Aguirre A, Caravan P, Gonzalez-Rosa JM, Sosnovik DE. Dynamics of collagen oxidation and cross linking in regenerating and irreversibly infarcted myocardium. Nat Commun 2024; 15:4648. [PMID: 38858347 PMCID: PMC11164919 DOI: 10.1038/s41467-024-48604-7] [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: 06/27/2023] [Accepted: 04/29/2024] [Indexed: 06/12/2024] Open
Abstract
In mammalian hearts myocardial infarction produces a permanent collagen-rich scar. Conversely, in zebrafish a collagen-rich scar forms but is completely resorbed as the myocardium regenerates. The formation of cross-links in collagen hinders its degradation but cross-linking has not been well characterized in zebrafish hearts. Here, a library of fluorescent probes to quantify collagen oxidation, the first step in collagen cross-link (CCL) formation, was developed. Myocardial injury in mice or zebrafish resulted in similar dynamics of collagen oxidation in the myocardium in the first month after injury. However, during this time, mature CCLs such as pyridinoline and deoxypyridinoline developed in the murine infarcts but not in the zebrafish hearts. High levels of newly oxidized collagen were still seen in murine scars with mature CCLs. These data suggest that fibrogenesis remains dynamic, even in mature scars, and that the absence of mature CCLs in zebrafish hearts may facilitate their ability to regenerate.
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Affiliation(s)
- Eman A Akam-Baxter
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
- Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, MA, USA.
| | - David Bergemann
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Sterling J Ridley
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Samantha To
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Brittany Andrea
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Brianna Moon
- A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Hua Ma
- A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Yirong Zhou
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Aaron Aguirre
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Peter Caravan
- Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, MA, USA
- A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Juan Manuel Gonzalez-Rosa
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Biology Department, Boston College, Chestnut Hill, USA
| | - David E Sosnovik
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, MA, USA
- A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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4
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Han Y, Cao Y, Lei H. Dynamic Covalent Hydrogels: Strong yet Dynamic. Gels 2022; 8:gels8090577. [PMID: 36135289 PMCID: PMC9498565 DOI: 10.3390/gels8090577] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/23/2022] Open
Abstract
Hydrogels are crosslinked polymer networks with time-dependent mechanical response. The overall mechanical properties are correlated with the dynamics of the crosslinks. Generally, hydrogels crosslinked by permanent chemical crosslinks are strong but static, while hydrogels crosslinked by physical interactions are weak but dynamic. It is highly desirable to create synthetic hydrogels that possess strong mechanical stability yet remain dynamic for various applications, such as drug delivery cargos, tissue engineering scaffolds, and shape-memory materials. Recently, with the introduction of dynamic covalent chemistry, the seemingly conflicting mechanical properties, i.e., stability and dynamics, have been successfully combined in the same hydrogels. Dynamic covalent bonds are mechanically stable yet still capable of exchanging, dissociating, or switching in response to external stimuli, empowering the hydrogels with self-healing properties, injectability and suitability for postprocessing and additive manufacturing. Here in this review, we first summarize the common dynamic covalent bonds used in hydrogel networks based on various chemical reaction mechanisms and the mechanical strength of these bonds at the single molecule level. Next, we discuss how dynamic covalent chemistry makes hydrogel materials more dynamic from the materials perspective. Furthermore, we highlight the challenges and future perspectives of dynamic covalent hydrogels.
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Affiliation(s)
- Yueying Han
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China
| | - Yi Cao
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan 250021, China
- Correspondence: (Y.C.); (H.L.)
| | - Hai Lei
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
- Correspondence: (Y.C.); (H.L.)
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5
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Pham MT, Tran TTA, Zayabaatar E. Discovery of inhibitors against mycobacterium branched-chain amino acid aminotransferases through in silico screening and experimental evaluation. Lett Appl Microbiol 2022; 75:942-950. [PMID: 35687522 DOI: 10.1111/lam.13763] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 06/01/2022] [Accepted: 06/06/2022] [Indexed: 11/28/2022]
Abstract
Tuberculosis (TB) is one of the most dangerous infectious diseases and is caused by Mycobacterium bovis (Mb) and Mycobacterium tuberculosis (Mt). Branched-chain amino acid aminotransferases (BCATs) were reported to be the key enzyme for methionine synthesis in Mycobacterium. Blocking the methionine synthesis in Mycobacterium can inhibit the growth of Mycobacterium. Therefore, in silico screening of inhibitors can be a good way to develop a potential drug for treating TB. A pyridoxal 5'-phosphate (PLP)-form of Mycobacterium bovis branched-chain amino acid aminotransferases (MbBCAT), an active form of MbBCAT, was constructed manually for docking approximately 150 000 compounds and the free energy was calculated in Autodock Vina. The 10 compounds which had the highest affinity to MbBCAT were further evaluated for their inhibitory effects against MbBCAT. Within the selected compounds, compound 4 (ZINC12359007) was found to be the best inhibitor against MbBCAT with the inhibitory constant Ki of 0·45 μmol l-1 and IC50 of 2·37 μmol l-1 . Our work provides potential candidates to develop effective drugs to prevent TB since the well-known structural information would be beneficial in the structure-based modification and design.
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Affiliation(s)
- M T Pham
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - T T A Tran
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology, Ho Chi Minh City, Vietnam
| | - E Zayabaatar
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan, Taiwan
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6
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Troudt BK, Vue JW, Bühlmann P. Comparison of the kinetics of aldehyde sensing by covalent bond formation with hydrazines and hydroxylamines. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Caillaud K, Ladavière C. Water‐soluble (poly)acylhydrazones: Syntheses and Applications. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kilian Caillaud
- Univ Lyon, CNRS, UMR 5223, Ingénierie des Matériaux Polymères Université Claude Bernard Lyon1, INSA Lyon, Université Jean Monnet Villeurbanne Cédex F‐69622 France
| | - Catherine Ladavière
- Univ Lyon, CNRS, UMR 5223, Ingénierie des Matériaux Polymères Université Claude Bernard Lyon1, INSA Lyon, Université Jean Monnet Villeurbanne Cédex F‐69622 France
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8
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Wang X, Lin Z, Bustin KA, McKnight NR, Parsons WH, Matthews ML. Discovery of Potent and Selective Inhibitors against Protein-Derived Electrophilic Cofactors. J Am Chem Soc 2022; 144:5377-5388. [PMID: 35235319 PMCID: PMC10159212 DOI: 10.1021/jacs.1c12748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Electrophilic cofactors are widely distributed in nature and play important roles in many physiological and disease processes, yet they have remained blind spots in traditional activity-based protein profiling (ABPP) approaches that target nucleophiles. More recently, reverse-polarity (RP)-ABPP using hydrazine probes identified an electrophilic N-terminal glyoxylyl (Glox) group for the first time in secernin-3 (SCRN3). The biological function(s) of both the protein and Glox as a cofactor has not yet been pharmacologically validated because of the lack of selective inhibitors that could disrupt and therefore identify its activity. Here, we present the first platform for analyzing the reactivity and selectivity of an expanded nucleophilic probe library toward main-chain carbonyl cofactors such as Glox and pyruvoyl (Pyvl) groups. We first applied the library proteome-wide to profile and confirm engagement with various electrophilic protein targets, including secernin-2 (SCRN2), shown here also to possess a Glox group. A broadly reactive indole ethylhydrazine probe was used for a competitive in vitro RP-ABPP assay to screen for selective inhibitors against such cofactors from a set of commercially available nucleophilic fragments. Using Glox-containing SCRN proteins as a case study, naphthyl hydrazine was identified as a potent and selective SCRN3 inhibitor, showing complete inhibition in cell lysates with no significant cross-reactivity detected for other enzymes. Moving forward, this platform provides the fundamental basis for the development of selective Glox inhibitors and represents a starting point to advance small molecules that modulate electrophile-dependent function.
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Affiliation(s)
- Xie Wang
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Zongtao Lin
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Katelyn A Bustin
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Nate R McKnight
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - William H Parsons
- Department of Chemistry and Biochemistry, Oberlin College, Oberlin, Ohio 44074, United States
| | - Megan L Matthews
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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9
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Campodónico PR, Tapia RA, Suárez-Rozas C. How the Nature of an Alpha-Nucleophile Determines a Brønsted Type-Plot and Its Reaction Pathways. An Experimental Study. Front Chem 2022; 9:740161. [PMID: 35186890 PMCID: PMC8847609 DOI: 10.3389/fchem.2021.740161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 12/30/2021] [Indexed: 11/23/2022] Open
Abstract
The reactions between 2-chloro-5-nitro pyrimidine with a serie of α-nucleophile derivatives were kinetically evaluated. The kinetic study was carried out in aqueous media and the data shown an unusual split on the Brønsted type-plot, opening a controversial discussion based on reactivities and possible reaction pathways. These split Brønsted type-plots are discussed over the hypothetical transition state (TS) structures associated to concerted or stepwise mechanisms with emphasis on hydrogen bond interactions between electrophile/nucleophile pair able to determine the reactivities and the plausible reaction routes.
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Affiliation(s)
- Paola R. Campodónico
- Centro de Química Médica, Instituto de Ciencias e Innovación en Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
- *Correspondence: Paola R. Campodónico,
| | - Ricardo A. Tapia
- Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Cristian Suárez-Rozas
- Centro de Química Médica, Instituto de Ciencias e Innovación en Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
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10
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Mueller E, Poulin I, Bodnaryk WJ, Hoare T. Click Chemistry Hydrogels for Extrusion Bioprinting: Progress, Challenges, and Opportunities. Biomacromolecules 2022; 23:619-640. [PMID: 34989569 DOI: 10.1021/acs.biomac.1c01105] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The emergence of 3D bioprinting has allowed a variety of hydrogel-based "bioinks" to be printed in the presence of cells to create precisely defined cell-loaded 3D scaffolds in a single step for advancing tissue engineering and/or regenerative medicine. While existing bioinks based primarily on ionic cross-linking, photo-cross-linking, or thermogelation have significantly advanced the field, they offer technical limitations in terms of the mechanics, degradation rates, and the cell viabilities achievable with the printed scaffolds, particularly in terms of aiming to match the wide range of mechanics and cellular microenvironments. Click chemistry offers an appealing solution to this challenge given that proper selection of the chemistry can enable precise tuning of both the gelation rate and the degradation rate, both key to successful tissue regeneration; simultaneously, the often bio-orthogonal nature of click chemistry is beneficial to maintain high cell viabilities within the scaffolds. However, to date, relatively few examples of 3D-printed click chemistry hydrogels have been reported, mostly due to the technical challenges of controlling mixing during the printing process to generate high-fidelity prints without clogging the printer. This review aims to showcase existing cross-linking modalities, characterize the advantages and disadvantages of different click chemistries reported, highlight current examples of click chemistry hydrogel bioinks, and discuss the design of mixing strategies to enable effective 3D extrusion bioprinting of click hydrogels.
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Affiliation(s)
- Eva Mueller
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - Isabelle Poulin
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - William James Bodnaryk
- 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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11
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Thooft K, Van Breedam W, Santens F, Wyseure E, Vanmarcke S, Devos S, Callewaert N, Madder A. GlyConnect-Ugi: site-selective, multi-component glycoprotein conjugations through GlycoDelete expressed glycans. Org Biomol Chem 2022; 20:464-471. [PMID: 34913461 DOI: 10.1039/d1ob02299g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recently, the GlyConnect-oxime (GC) protein conjugation strategy was developed to provide a site-selective glycan-based conjugation strategy as an extension to the in-house developed GlycoDelete (GD) technology. GD gives access to glycoproteins with single GlcNAc, LacNAc, or LacNAc-Sia type glycans on their N-glycosylation sites. We have previously shown that these glycans provide a unique handle for site-selective conjugation as they provide a short, homogeneous and hydrophilic link to the protein backbone. GC focused on the use of chemical and chemo-enzymatic pathways for conjugation of a single molecule of interest via oxime formation or reductive amination. In the current work, we explore multicomponent reactions (MCR), namely Ugi and Passerini reactions, for GlycoDelete glycan directed, site-specific protein conjugation (MC-GC). The use of the Ugi and Passerini multicomponent reactions holds the potential of introducing multiple groups of interest in a single reaction step while creating a hydrophilic peptide-like linker.
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Affiliation(s)
- Karel Thooft
- Organic and Biomimetic Chemistry Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Belgium. .,Medical Biotechnology Centre, VIB, Ghent, Belgium.,Center for Medical Biotechnology, VIB, Department of Biochemistry and Microbiology, UGent, Technologiepark 75, B-9052 Zwijnaarde-Gent
| | - Wander Van Breedam
- Medical Biotechnology Centre, VIB, Ghent, Belgium.,Center for Medical Biotechnology, VIB, Department of Biochemistry and Microbiology, UGent, Technologiepark 75, B-9052 Zwijnaarde-Gent
| | - Francis Santens
- Medical Biotechnology Centre, VIB, Ghent, Belgium.,Center for Medical Biotechnology, VIB, Department of Biochemistry and Microbiology, UGent, Technologiepark 75, B-9052 Zwijnaarde-Gent
| | - Elise Wyseure
- Medical Biotechnology Centre, VIB, Ghent, Belgium.,Center for Medical Biotechnology, VIB, Department of Biochemistry and Microbiology, UGent, Technologiepark 75, B-9052 Zwijnaarde-Gent
| | - Sandrine Vanmarcke
- Medical Biotechnology Centre, VIB, Ghent, Belgium.,Center for Medical Biotechnology, VIB, Department of Biochemistry and Microbiology, UGent, Technologiepark 75, B-9052 Zwijnaarde-Gent
| | - Simon Devos
- Medical Biotechnology Centre, VIB, Ghent, Belgium.,Center for Medical Biotechnology, VIB, Department of Biochemistry and Microbiology, UGent, Technologiepark 75, B-9052 Zwijnaarde-Gent
| | - Nico Callewaert
- Medical Biotechnology Centre, VIB, Ghent, Belgium.,Center for Medical Biotechnology, VIB, Department of Biochemistry and Microbiology, UGent, Technologiepark 75, B-9052 Zwijnaarde-Gent
| | - Annemieke Madder
- Organic and Biomimetic Chemistry Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Belgium.
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12
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Morgan FLC, Fernández‐Pérez J, Moroni L, Baker MB. Tuning Hydrogels by Mixing Dynamic Cross-Linkers: Enabling Cell-Instructive Hydrogels and Advanced Bioinks. Adv Healthc Mater 2022; 11:e2101576. [PMID: 34614297 DOI: 10.1002/adhm.202101576] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/24/2021] [Indexed: 01/02/2023]
Abstract
Rational design of hydrogels that balance processability and extracellular matrix (ECM) biomimicry remains a challenge for tissue engineering and biofabrication. Hydrogels suitable for biofabrication techniques, yet tuneable to match the mechanical (static and dynamic) properties of native tissues remain elusive. Dynamic covalent hydrogels possessing shear-thinning/self-healing (processability) and time-dependent cross-links (mechanical properties) provide a potential solution, yet can be difficult to rationally control. Here, the straightforward modular mixing of dynamic cross-links with different timescales (hydrazone and oxime) is explored using rheology, self-healing tests, extrusion printing, and culture of primary human dermal fibroblasts. Maintaining a constant polymer content and cross-linker concentration, the stiffness and stress relaxation can be tuned across two orders of magnitude. All formulations demonstrate a similar flow profile after network rupture, allowing the separation of initial mechanical properties from flow behavior during printing. Furthermore, the self-healing nature of hydrogels with high hydrazone content enables recyclability of printed structures. Last, a distinct threshold for cell spreading and morphology is observed within this hydrogel series, even in multi-material constructs. Simple cross-linker mixing enables fine control and is of general interest for bioink development, targeting viscoelastic properties of specific cellular niches, and as an accessible and flexible platform for designing dynamic networks.
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Affiliation(s)
- Francis L. C. Morgan
- Department of Complex Tissue Regeneration MERLN Institute Maastricht University Maastricht 6229 ER The Netherlands
| | - Julia Fernández‐Pérez
- Department of Complex Tissue Regeneration MERLN Institute Maastricht University Maastricht 6229 ER The Netherlands
| | - Lorenzo Moroni
- Department of Complex Tissue Regeneration MERLN Institute Maastricht University Maastricht 6229 ER The Netherlands
| | - Matthew B. Baker
- Department of Complex Tissue Regeneration MERLN Institute Maastricht University Maastricht 6229 ER The Netherlands
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13
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Apostolides DE, Patrickios CS. Model dynamic covalent organogels based on end‐linked three‐armed oligo(ethylene glycol) star macromonomers. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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14
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Richardson BM, Walker CJ, Maples MM, Randolph MA, Bryant SJ, Anseth KS. Mechanobiological Interactions between Dynamic Compressive Loading and Viscoelasticity on Chondrocytes in Hydrazone Covalent Adaptable Networks for Cartilage Tissue Engineering. Adv Healthc Mater 2021; 10:e2002030. [PMID: 33738966 PMCID: PMC8785214 DOI: 10.1002/adhm.202002030] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/17/2021] [Indexed: 12/17/2022]
Abstract
Mechanobiological cues influence chondrocyte biosynthesis and are often used in tissue engineering applications to improve the repair of articular cartilage in load-bearing joints. In this work, the biophysical effects of an applied dynamic compression on chondrocytes encapsulated in viscoelastic hydrazone covalent adaptable networks (CANs) is explored. Here, hydrazone CANs exhibit viscoelastic loss tangents ranging from (9.03 ± 0.01) 10-4 to (1.67 ± 0.09) 10-3 based on the molar percentages of alkyl-hydrazone and benzyl-hydrazone crosslinks. Notably, viscoelastic alkyl-hydrazone crosslinks improve articular cartilage specific gene expression showing higher SOX9 expression in free swelling hydrogels and dynamic compression reduces hypertrophic chondrocyte markers (COL10A1, MMP13) in hydrazone CANs. Interestingly, dynamic compression also improves matrix biosynthesis in elastic benzyl-hydrazone controls but reduces biosynthesis in viscoelastic alkyl-hydrazone CANs. Additionally, intermediate levels of viscoelastic adaptability demonstrate the highest levels of matrix biosynthesis in hydrazone CANs, demonstrating on average 70 ± 4 µg of sulfated glycosaminoglycans per day and 31 ± 3 µg of collagen per day over one month in dynamic compression bioreactors. Collectively, the results herein demonstrate the role of matrix adaptability and viscoelasticity on chondrocytes in hydrazone CANs during dynamic compression, which may prove useful for tissue engineering applications in load-bearing joints.
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Affiliation(s)
- Benjamin M Richardson
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 3415 Colorado Ave, Boulder, CO, 80303, USA
- The BioFrontiers Institute, University of Colorado Boulder, 3415 Colorado Ave, Boulder, CO, 80303, USA
| | - Cierra J Walker
- The BioFrontiers Institute, University of Colorado Boulder, 3415 Colorado Ave, Boulder, CO, 80303, USA
- Materials Science and Engineering Program, University of Colorado Boulder, 4001 Discovery Drive, Boulder, CO, 80303, USA
| | - Mollie M Maples
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 3415 Colorado Ave, Boulder, CO, 80303, USA
- The BioFrontiers Institute, University of Colorado Boulder, 3415 Colorado Ave, Boulder, CO, 80303, USA
| | - Mark A Randolph
- Department of Orthopedic Surgery, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, WAC 435, Boston, MA, 02114, USA
- Division of Plastic Surgery, Massachusetts General Hospital, Harvard Medical School, 15 Parkman St, WACC 453, Boston, MA, 02114, USA
| | - Stephanie J Bryant
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 3415 Colorado Ave, Boulder, CO, 80303, USA
- The BioFrontiers Institute, University of Colorado Boulder, 3415 Colorado Ave, Boulder, CO, 80303, USA
- Materials Science and Engineering Program, University of Colorado Boulder, 4001 Discovery Drive, Boulder, CO, 80303, USA
| | - Kristi S Anseth
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 3415 Colorado Ave, Boulder, CO, 80303, USA
- The BioFrontiers Institute, University of Colorado Boulder, 3415 Colorado Ave, Boulder, CO, 80303, USA
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15
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Ahlqvist G, McGeough CP, Senanayake C, Armstrong JD, Yadaw A, Roy S, Ahmad S, Snead DR, Jamison TF. Progress Toward a Large-Scale Synthesis of Molnupiravir (MK-4482, EIDD-2801) from Cytidine. ACS OMEGA 2021; 6:10396-10402. [PMID: 34056192 PMCID: PMC8153789 DOI: 10.1021/acsomega.1c00772] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 03/30/2021] [Indexed: 05/20/2023]
Abstract
Molnupiravir (MK-4482, EIDD-2801) is a promising orally bioavailable drug candidate for the treatment of COVID-19. Herein, we describe a supply-centered and chromatography-free synthesis of molnupiravir from cytidine, consisting of two steps: a selective enzymatic acylation followed by transamination to yield the final drug product. Both steps have been successfully performed on a decagram scale: the first step at 200 g and the second step at 80 g. Overall, molnupiravir has been obtained in a 41% overall isolated yield compared to a maximum 17% isolated yield in the patented route. This route provides many advantages to the initial route described in the patent literature and would decrease the cost of this pharmaceutical should it prove safe and efficacious in ongoing clinical trials.
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Affiliation(s)
- Grace
P. Ahlqvist
- Department
of Chemistry, Massachusetts Institute of
Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Catherine P. McGeough
- Department
of Chemistry, Massachusetts Institute of
Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Chris Senanayake
- TCG
GreenChem, Inc., Process R&D Center at Princeton South, 701 Charles Ewing Boulevard, Ewing, New Jersey 08628, United States
| | - Joseph D. Armstrong
- TCG
GreenChem, Inc., Process R&D Center at Princeton South, 701 Charles Ewing Boulevard, Ewing, New Jersey 08628, United States
| | - Ajay Yadaw
- TCG
GreenChem, Inc., Process R&D Center at Princeton South, 701 Charles Ewing Boulevard, Ewing, New Jersey 08628, United States
| | - Sarabindu Roy
- TCG
GreenChem, Inc., Process R&D Center at Princeton South, 701 Charles Ewing Boulevard, Ewing, New Jersey 08628, United States
| | - Saeed Ahmad
- Medicines
for All Institute, 737
N. 5th Street, Box 980100, Richmond, Virginia 23298, United
States
| | - David R. Snead
- Medicines
for All Institute, 737
N. 5th Street, Box 980100, Richmond, Virginia 23298, United
States
| | - Timothy F. Jamison
- Department
of Chemistry, Massachusetts Institute of
Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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16
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Reznichenko O, Cucchiarini A, Gabelica V, Granzhan A. Quadruplex DNA-guided ligand selection from dynamic combinatorial libraries of acylhydrazones. Org Biomol Chem 2021; 19:379-386. [PMID: 33325973 DOI: 10.1039/d0ob01908a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dynamic combinatorial libraries of acylhydrazones were prepared from diacylhydrazides and several cationic or neutral aldehydes in the presence of 5-methoxyanthranilic acid catalyst. Pull-down experiments with magnetic beads functionalized with a G-quadruplex (G4)-forming oligonucleotide led to the identification of putative ligands, which were resynthesized or emulated by close structural analogues. G4-binding properties of novel derivatives were assessed by fluorimetric titrations, mass spectrometry and thermal denaturation experiments, giving evidence of strong binding (Kd < 10 nM) for two compounds.
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Affiliation(s)
- Oksana Reznichenko
- CNRS UMR9187, Inserm U1196, Institut Curie, PSL Research University, 91405 Orsay, France. and CNRS UMR9187, Inserm U1196, Université Paris Saclay, 91405 Orsay, France
| | - Anne Cucchiarini
- CNRS UMR9187, Inserm U1196, Institut Curie, PSL Research University, 91405 Orsay, France. and CNRS UMR9187, Inserm U1196, Université Paris Saclay, 91405 Orsay, France
| | - Valérie Gabelica
- Univ. Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212, IECB, 33600 Pessac, France
| | - Anton Granzhan
- CNRS UMR9187, Inserm U1196, Institut Curie, PSL Research University, 91405 Orsay, France. and CNRS UMR9187, Inserm U1196, Université Paris Saclay, 91405 Orsay, France
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17
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Suchý M, Kirby A, Sabloff T, Mulvihill EE, Shuhendler AJ. Dansyl–NA 3 conjugates for glycoprotein detection through fluorescent tagging and native gel electrophoresis. NEW J CHEM 2021. [DOI: 10.1039/d1nj02393d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An aldehyde-reactive fluorophore has been prepared that can afford the fluorescent detection of serum glycoproteins by native gel electrophoresis.
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Affiliation(s)
- Mojmír Suchý
- Department of Chemistry & Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada
- University of Ottawa Heart Institute
| | - Alexia Kirby
- Department of Chemistry & Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada
- University of Ottawa Heart Institute
| | - Tara Sabloff
- Department of Chemistry & Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada
| | - Erin E. Mulvihill
- University of Ottawa Heart Institute
- Ottawa
- Canada
- Department of Biochemistry, Microbiology and Immunology
- University of Ottawa
| | - Adam J. Shuhendler
- Department of Chemistry & Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada
- University of Ottawa Heart Institute
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18
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Zhou Y, Piergentili I, Hong J, van der Helm MP, Macchione M, Li Y, Eelkema R, Luo S. Indoline Catalyzed Acylhydrazone/Oxime Condensation under Neutral Aqueous Conditions. Org Lett 2020; 22:6035-6040. [PMID: 32790427 DOI: 10.1021/acs.orglett.0c02128] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Acylhydrazones formation has been widely applied in materials science and biolabeling. However, their sluggish condensation rate under neutral conditions limits its application. Herein, indolines with electron-donating groups are reported as a new catalyst scaffold, which can catalyze acylhydrazone, hydrazone, and oxime formation via an iminium ion intermediate. This new type of catalyst showed up to 15-fold rate enhancement over the traditional aniline-catalyzed reaction at neutral conditions. The identified indoline catalyst was successfully applied in hydrogel formation.
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Affiliation(s)
- Yuntao Zhou
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Irene Piergentili
- Department of Chemical Engineering, Delft University of Technology, van der Maasweg 9, 2629HZ Delft, The Netherlands
| | - Jennifer Hong
- Department of Chemical Engineering, Delft University of Technology, van der Maasweg 9, 2629HZ Delft, The Netherlands
| | - Michelle P van der Helm
- Department of Chemical Engineering, Delft University of Technology, van der Maasweg 9, 2629HZ Delft, The Netherlands
| | - Mariano Macchione
- Department of Chemical Engineering, Delft University of Technology, van der Maasweg 9, 2629HZ Delft, The Netherlands
| | - Yao Li
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Rienk Eelkema
- Department of Chemical Engineering, Delft University of Technology, van der Maasweg 9, 2629HZ Delft, The Netherlands
| | - Sanzhong Luo
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
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19
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Morgan FLC, Moroni L, Baker MB. Dynamic Bioinks to Advance Bioprinting. Adv Healthc Mater 2020; 9:e1901798. [PMID: 32100963 DOI: 10.1002/adhm.201901798] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 01/31/2020] [Indexed: 01/06/2023]
Abstract
The development of bioinks for bioprinting of cell-laden constructs remains a challenge for tissue engineering, despite vigorous investigation. Hydrogels to be used as bioinks must fulfill a demanding list of requirements, mainly focused around printability and cell function. Recent advances in the use of supramolecular and dynamic covalent chemistry (DCvC) provide paths forward to develop bioinks. These dynamic hydrogels enable tailorability, higher printing performance, and the creation of more life-like environments for ultimate tissue maturation. This review focuses on the exploration and benefits of dynamically cross-linked bioinks for bioprinting, highlighting recent advances, benefits, and challenges in this emerging area. By incorporating internal dynamics, many benefits can be imparted to the material, providing design elements for next generation bioinks.
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Affiliation(s)
- Francis L. C. Morgan
- Department of Complex Tissue RegenerationMERLN InstituteMaastricht University 6200 MD Maastricht The Netherlands
| | - Lorenzo Moroni
- Department of Complex Tissue RegenerationMERLN InstituteMaastricht University 6200 MD Maastricht The Netherlands
| | - Matthew B. Baker
- Department of Complex Tissue RegenerationMERLN InstituteMaastricht University 6200 MD Maastricht The Netherlands
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20
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Mao X, Li W, Zhu S, Zou J, Tian H, Duan Y, Wang Y, Fei J, Wang X. Bifunctional pyridoxal derivatives as efficient bioorthogonal reagents for biomacromolecule modifications. Chem Commun (Camb) 2020; 56:7601-7604. [PMID: 32514510 DOI: 10.1039/d0cc02722g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Two types of pyridoxal analogs, azido pyridoxal (PL-N3) and carboxyl pyridoxal (PL-COOH), were developed as novel bifunctional bioorthogonal molecules. These molecules showed fast imine formation with hydrazinyl groups and stable covalent linkages via azido/carboxyl groups, and thus were of great use for site-specific peptide and protein modifications.
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Affiliation(s)
- Xianxian Mao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
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21
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Howard CJ, Floyd BM, Bardo AM, Swaminathan J, Marcotte EM, Anslyn EV. Solid-Phase Peptide Capture and Release for Bulk and Single-Molecule Proteomics. ACS Chem Biol 2020; 15:1401-1407. [PMID: 32363853 DOI: 10.1021/acschembio.0c00040] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The field of proteomics has expanded recently with more sensitive techniques for the bulk measurement of peptides as well as single-molecule techniques. One limiting factor for some of these methods is the need for multiple chemical derivatizations and highly pure proteins free of contaminants. We demonstrate a solid-phase capture-release strategy suitable for the proteolysis, purification, and subsequent chemical modification of peptides. We use this resin on an HEK293T cell lysate and perform one-pot proteolysis, capture, and derivatization to survey peptide capture biases from over 40 000 unique peptides from a cellular proteome. We also show that this capture can be reversed in a traceless manner, such that it is amenable for single-molecule proteomics techniques. With this technique, we perform a fluorescent labeling and C-terminal derivatization on a peptide and subject it to fluorosequencing, demonstrating that washing the resin is sufficient to remove excess dyes and other reagents prior to single-molecule protein sequencing.
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Affiliation(s)
- Cecil J. Howard
- Department of Chemistry, University of Texas at Austin, 100 E. 24th Street, Austin, Texas 78712, United States
| | - Brendan M. Floyd
- Department of Molecular Biosciences, University of Texas at Austin, 2500 Speedway, Austin, Texas 78712, United States
| | - Angela M. Bardo
- Department of Molecular Biosciences, University of Texas at Austin, 2500 Speedway, Austin, Texas 78712, United States
| | - Jagannath Swaminathan
- Department of Molecular Biosciences, University of Texas at Austin, 2500 Speedway, Austin, Texas 78712, United States
| | - Edward M. Marcotte
- Department of Molecular Biosciences, University of Texas at Austin, 2500 Speedway, Austin, Texas 78712, United States
| | - Eric V. Anslyn
- Department of Chemistry, University of Texas at Austin, 100 E. 24th Street, Austin, Texas 78712, United States
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22
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Vargas EL, Velázquez JA, Rodrigo E, Reinecke H, Rodríguez-Hernández J, Fernández-Mayoralas A, Gallardo A, Cid MB. p Ka Modulation of Pyrrolidine-Based Catalytic Polymers Used for the Preparation of Glycosyl Hydrazides at Physiological pH and Temperature. ACS APPLIED BIO MATERIALS 2020; 3:1955-1967. [PMID: 35025318 DOI: 10.1021/acsabm.9b01123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Inspired by the ability of enzymes to use the surrounding hydrophobic and/or polarizable groups to modulate the pKa of a given amino acid, we designed a series of soluble polymers able to decrease the basicity of pyrrolidine (from 11.2 to 8.6 pKa units), which clearly increases its aminocatalytic activity at physiological pH in C═N bond formation reactions via ion iminium activation. Other parameters such as charge density, hydrophobic/hydrophilic balance, and aggregation state have been studied as important factors in the catalytic activity of the polymers for a given substrate. To demonstrate the utility of our approach, an optimal pyrrolidine-based catalytic polymer has been used for the formation of C-N bonds between hydrazides and free sugars as the model system for the preparation of glycoconjugates.
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Affiliation(s)
- Emily L Vargas
- Department of Organic Chemistry, Universidad Autónoma de Madrid Cantoblanco, 28049 Madrid, Spain
| | - J Antonio Velázquez
- Department of Organic Chemistry, Universidad Autónoma de Madrid Cantoblanco, 28049 Madrid, Spain
| | - Eduardo Rodrigo
- Department of Organic Chemistry, Universidad Autónoma de Madrid Cantoblanco, 28049 Madrid, Spain
| | - Helmut Reinecke
- Instituto de Ciencia y Tecnologı́a de Polı́meros (ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Juan Rodríguez-Hernández
- Instituto de Ciencia y Tecnologı́a de Polı́meros (ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | | | - Alberto Gallardo
- Instituto de Ciencia y Tecnologı́a de Polı́meros (ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - María Belén Cid
- Department of Organic Chemistry, Universidad Autónoma de Madrid Cantoblanco, 28049 Madrid, Spain
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23
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Crawford CJ, Cordero RJB, Guazzelli L, Wear MP, Bowen A, Oscarson S, Casadevall A. Exploring Cryptococcus neoformans capsule structure and assembly with a hydroxylamine-armed fluorescent probe. J Biol Chem 2020; 295:4327-4340. [PMID: 32005661 PMCID: PMC7105310 DOI: 10.1074/jbc.ra119.012251] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/30/2020] [Indexed: 11/06/2022] Open
Abstract
Chemical biology is an emerging field that enables the study and manipulation of biological systems with probes whose reactivities provide structural insights. The opportunistic fungal pathogen Cryptococcus neoformans possesses a polysaccharide capsule that is a major virulence factor, but is challenging to study. We report here the synthesis of a hydroxylamine-armed fluorescent probe that reacts with reducing glycans and its application to study the architecture of the C. neoformans capsule under a variety of conditions. The probe signal localized intracellularly and at the cell wall-membrane interface, implying the presence of reducing-end glycans at this location where the capsule is attached to the cell body. In contrast, no fluorescence signal was detected in the capsule body. We observed vesicle-like structures containing the reducing-end probe, both intra- and extracellularly, consistent with the importance of vesicles in capsular assembly. Disrupting the capsule with DMSO, ultrasound, or mechanical shear stress resulted in capsule alterations that affected the binding of the probe, as reducing ends were exposed and cell membrane integrity was compromised. Unlike the polysaccharides in the assembled capsule, isolated exopolysaccharides contained reducing ends. The reactivity of the hydroxylamine-armed fluorescent probe suggests a model for capsule assembly whereby reducing ends localize to the cell wall surface, supporting previous findings suggesting that this is an initiation point for capsular assembly. We propose that chemical biology is a promising approach for studying the C. neoformans capsule and its associated polysaccharides to unravel their roles in fungal virulence.
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Affiliation(s)
- Conor J Crawford
- Centre for Synthesis and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland; Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, The Johns Hopkins University, Baltimore, Maryland 21205
| | - Radamés J B Cordero
- Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, The Johns Hopkins University, Baltimore, Maryland 21205
| | - Lorenzo Guazzelli
- Centre for Synthesis and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Maggie P Wear
- Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, The Johns Hopkins University, Baltimore, Maryland 21205
| | - Anthony Bowen
- Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, The Johns Hopkins University, Baltimore, Maryland 21205
| | - Stefan Oscarson
- Centre for Synthesis and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Arturo Casadevall
- Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, The Johns Hopkins University, Baltimore, Maryland 21205.
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24
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Akam EA, Abston E, Rotile NJ, Slattery HR, Zhou IY, Lanuti M, Caravan P. Improving the reactivity of hydrazine-bearing MRI probes for in vivo imaging of lung fibrogenesis. Chem Sci 2020; 11:224-231. [PMID: 32728411 PMCID: PMC7362876 DOI: 10.1039/c9sc04821a] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 11/08/2019] [Indexed: 12/12/2022] Open
Abstract
Pulmonary fibrosis (PF) is the pathologic accumulation of extracellular matrix components in lung tissue that result in scarring following chronic lung injury. PF is typically diagnosed by high resolution computed tomography (HRCT) and/or invasive biopsy. However, HRCT cannot distinguish old injury from active fibrogenesis. We previously demonstrated that allysine residues on oxidized collagen represent an abundant target during lung fibrogenesis, and that magnetic resonance imaging (MRI) with a small-molecule, gadolinium-containing probe, Gd-Hyd, could specifically detect and stage fibrogenesis in a mouse model. In this work, we present an improved probe, Gd-CHyd, featuring an N,N-dialkyl hydrazine which has an order of magnitude both greater reactivity and affinity for aldehydes. In a paired study in mice with bleomycin induced lung injury we show that the improved reactivity and affinity of Gd-CHyd results in significantly higher lung-to-liver contrast, e.g. 77% higher at 45 min post injection, and slower lung clearance than Gd-Hyd. Gd-CHyd enhanced MRI is >60-fold higher in bleomycin injured mouse lungs compared to uninjured mice. Collectively, our data indicate that enhancing hydrazine reactivity and affinity towards allysine is an effective strategy to significantly improve molecular MRI probes for lung fibrogenesis.
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Affiliation(s)
- Eman A Akam
- Martinos Center for Biomedical Imaging , Massachusetts General Hospital (MGH) , Boston , USA .
- The Institute for Innovation in Imaging , MGH , Boston , USA
- Harvard Medical School , Boston , USA
| | - Eric Abston
- Martinos Center for Biomedical Imaging , Massachusetts General Hospital (MGH) , Boston , USA .
- Boston University School of Medicine: Pulmonary , Allergy, Sleep & Critical Care Medicine , Boston , USA
- The Division of Thoracic Surgery , MGH , Boston , USA
| | - Nicholas J Rotile
- Martinos Center for Biomedical Imaging , Massachusetts General Hospital (MGH) , Boston , USA .
- The Institute for Innovation in Imaging , MGH , Boston , USA
| | - Hannah R Slattery
- Martinos Center for Biomedical Imaging , Massachusetts General Hospital (MGH) , Boston , USA .
- The Institute for Innovation in Imaging , MGH , Boston , USA
| | - Iris Y Zhou
- Martinos Center for Biomedical Imaging , Massachusetts General Hospital (MGH) , Boston , USA .
- The Institute for Innovation in Imaging , MGH , Boston , USA
- Harvard Medical School , Boston , USA
| | - Michael Lanuti
- Harvard Medical School , Boston , USA
- The Division of Thoracic Surgery , MGH , Boston , USA
| | - Peter Caravan
- Martinos Center for Biomedical Imaging , Massachusetts General Hospital (MGH) , Boston , USA .
- The Institute for Innovation in Imaging , MGH , Boston , USA
- Harvard Medical School , Boston , USA
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25
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Su D, Coste M, Diaconu A, Barboiu M, Ulrich S. Cationic dynamic covalent polymers for gene transfection. J Mater Chem B 2020; 8:9385-9403. [DOI: 10.1039/d0tb01836h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Dynamic covalent polymers have revealed strong potential in gene delivery, thanks to their versatile self-assembly, adaptive and responsive behaviors.
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Affiliation(s)
- Dandan Su
- Institut Européen des Membranes
- Adaptive Supramolecular Nanosystems Group
- University of Montpellier
- ENSCM
- CNRS
| | - Maëva Coste
- Institut des Biomolécules Max Mousseron (IBMM)
- CNRS
- Université of Montpellier
- ENSCM
- Montpellier
| | - Andrei Diaconu
- Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy
- Iasi
- Romania
| | - Mihail Barboiu
- Institut Européen des Membranes
- Adaptive Supramolecular Nanosystems Group
- University of Montpellier
- ENSCM
- CNRS
| | - Sébastien Ulrich
- Institut des Biomolécules Max Mousseron (IBMM)
- CNRS
- Université of Montpellier
- ENSCM
- Montpellier
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26
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Cardona MA, Prins LJ. ATP-fuelled self-assembly to regulate chemical reactivity in the time domain. Chem Sci 2019; 11:1518-1522. [PMID: 34084381 PMCID: PMC8148039 DOI: 10.1039/c9sc05188k] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 12/17/2019] [Indexed: 11/30/2022] Open
Abstract
Here, we exploit a small biomolecule - ATP - to gain temporal control over chemical reactivity in a synthetic system composed of small self-assembling molecules and reactants. The approach relies on the capacity of ATP to template the formation of amphiphile-based assemblies. The presence of the enzyme alkaline phosphatase causes a gradual decrease in the ATP-concentration in time and, consequently, a spontaneous dissociation of the assemblies. The uptake of apolar reactants in the hydrophobic domain of the assemblies leads to an enhancement of the reaction rate. It is shown that ATP-triggered self-assembly causes the selective upregulation of one out of two hydrazone-bond formation reactions that take place concurrently in the system. This leads to an inversion in the product ratio, which, however, is transient in nature because the upregulated reaction spontaneously reverts to its basal low reaction rate once the ATP has been consumed by the enzyme. Overall, the results demonstrate the potential of chemically-fuelled self-assembly under dissipative conditions to gain temporal control over reactivity in complex chemical systems.
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Affiliation(s)
- Maria A Cardona
- Department of Chemical Sciences, University of Padova Via Marzolo 1 35131 Padova Italy
| | - Leonard J Prins
- Department of Chemical Sciences, University of Padova Via Marzolo 1 35131 Padova Italy
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27
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Love D, Kim K, Domaille DW, Williams O, Stansbury J, Musgrave C, Bowman C. Catalyst-free, aza-Michael polymerization of hydrazides: polymerizability, kinetics, and mechanistic origin of an α-effect. Polym Chem 2019; 10:5790-5804. [PMID: 31749894 PMCID: PMC6865069 DOI: 10.1039/c9py01199d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite the powerful nature of the aza-Michael reaction for generating C-N linkages and bioactive moieties, the bis-Michael addition of 1° amines remains ineffective for the synthesis of functional, step-growth polymers due to the drastic reduction in reactivity of the resulting 2° amine mono-addition adduct. In this study, a wide range of commercial hydrazides are shown to effectively undergo the bis-Michael reaction with divinyl sulfone (DVS) and 1,6-hexanediol diacrylate (HDA) under catalyst-free, thermal conditions to afford moderate to high molecular weight polymers with M n = 3.8-34.5 kg mol-1. The hydrazide-Michael reactions exhibit two distinctive, conversion-dependent kinetic regimes that are 2nd-order overall, in contrast to the 3rd-order nature of amines previously reported. The mono-addition rate constant was found to be 37-fold greater than that of the bis-addition at 80 °C for the reaction between benzhydrazide and DVS. A significant majority (12 of 15) of the hydrazide derivatives used here show excellent bis-Michael reactivity and achieve >97% conversions after 5 days. This behavior is consistent with calculations that show minimal variance of electron density on the N-nucleophile among the derivatives studied. Reactivity differences between hydrazides and hexylamine are also explored. Overall, the difference in reactivity between hydrazides and amines is attributed to the adjacent nitrogen atom in hydrazides that acts as an efficient hydrogen-bond donor that facilitates intramolecular proton-transfer following the formation of the zwitterion intermediate. This effect not only activates the Michael acceptor but also coordinates with additional Michael acceptors to form an intermolecular reactant complex.
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Affiliation(s)
- Dillon Love
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - Kangmin Kim
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - Dylan W. Domaille
- Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, USA
| | - Olivia Williams
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - Jeffrey Stansbury
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, USA
- School of Dental Medicine, Craniofacial Biology, University of Colorado Denver, Aurora, Colorado 80045, USA
| | - Charles Musgrave
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - Christopher Bowman
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, USA
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28
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Marro N, Della Sala F, Kay ER. Programmable dynamic covalent nanoparticle building blocks with complementary reactivity. Chem Sci 2019; 11:372-383. [PMID: 32190260 PMCID: PMC7067244 DOI: 10.1039/c9sc04195h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 11/14/2019] [Indexed: 12/28/2022] Open
Abstract
A toolkit of two complementary dynamic covalent nanoparticles enables programmable and reversible nanoparticle functionalization and construction of adaptive binary assemblies.
Nanoparticle-based devices, materials and technologies will demand a new era of synthetic chemistry where predictive principles familiar in the molecular regime are extended to nanoscale building blocks. Typical covalent strategies for modifying nanoparticle-bound species rely on kinetically controlled reactions optimised for efficiency but with limited capacity for selective and divergent access to a range of product constitutions. In this work, monolayer-stabilized nanoparticles displaying complementary dynamic covalent hydrazone exchange reactivity undergo distinct chemospecific transformations by selecting appropriate combinations of ‘nucleophilic’ or ‘electrophilic’ nanoparticle-bound monolayers with nucleophilic or electrophilic molecular modifiers. Thermodynamically governed reactions allow modulation of product compositions, spanning mixed-ligand monolayers to exhaustive exchange. High-density nanoparticle-stabilizing monolayers facilitate in situ reaction monitoring by quantitative 19F NMR spectroscopy. Kinetic analysis reveals that hydrazone exchange rates are moderately diminished by surface confinement, and that the magnitude of this effect is dependent on mechanistic details: surface-bound electrophiles react intrinsically faster, but are more significantly affected by surface immobilization than nucleophiles. Complementary nanoparticles react with each other to form robust covalently connected binary aggregates. Endowed with the adaptive characteristics of the dynamic covalent linking process, the nanoscale assemblies can be tuned from extended aggregates to colloidally stable clusters of equilibrium sizes that depend on the concentration of a monofunctional capping agent. Just two ‘dynamic covalent nanoparticles’ with complementary thermodynamically governed reactivities therefore institute a programmable toolkit offering flexible control over nanoparticle surface functionalization, and construction of adaptive assemblies that selectively combine several nanoscale building blocks.
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Affiliation(s)
- Nicolas Marro
- EaStCHEM School of Chemistry , University of St Andrews , North Haugh , St Andrews , KY16 9ST , UK .
| | - Flavio Della Sala
- EaStCHEM School of Chemistry , University of St Andrews , North Haugh , St Andrews , KY16 9ST , UK .
| | - Euan R Kay
- EaStCHEM School of Chemistry , University of St Andrews , North Haugh , St Andrews , KY16 9ST , UK .
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29
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He M, Lehn JM. Time-Dependent Switching of Constitutional Dynamic Libraries and Networks from Kinetic to Thermodynamic Distributions. J Am Chem Soc 2019; 141:18560-18569. [DOI: 10.1021/jacs.9b09395] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Meixia He
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d’Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, 8 Allée Gaspard Monge, 67000 Strasbourg, France
| | - Jean-Marie Lehn
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d’Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, 8 Allée Gaspard Monge, 67000 Strasbourg, France
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30
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Gu H, Ghosh S, Staples RJ, Bane SL. β-Hydroxy-Stabilized Boron-Nitrogen Heterocycles Enable Rapid and Efficient C-Terminal Protein Modification. Bioconjug Chem 2019; 30:2604-2613. [PMID: 31483610 DOI: 10.1021/acs.bioconjchem.9b00534] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Bioorthogonal chemistry has enabled the development of bioconjugates in physiological environments while averting interference from endogenous biomolecules. Reactions between carbonyl-containing molecules and alkoxyamines or hydrazines have experienced a resurgence in popularity in bioorthogonal chemistry owing to advances that allow the reactions to occur under physiological conditions. In particular, ortho-carbonyl-substituted phenylboronic acids (CO-PBAs) exhibit greatly accelerated rates of hydrazone and oxime formation via intramolecular Lewis acid catalysis. Unfortunately, the rate of the reverse reaction is also increased, yielding a kinetically less stable bioconjugate. When the substrate is a hydrazine derivative, an intramolecular reaction between the boronic acid and the hydrazone can lead to the formation of a heterocycle containing a boron-nitrogen bond. We have shown previously that α-amino hydrazides undergo rapid reaction with CO-PBAs to form highly stable, tricyclic products, and that this reaction is orthogonal to the popular azide-alkyne and tetrazine-alkene reactions. In this work, we explore a series of heteroatom-substituted hydrazides for their ability to form tricyclic products with two CO-PBAs, 2-formylphenylboronic acid (2fPBA), and 2-acetylphenylboronic acid (AcPBA). In particular, highly stable products were formed using β-hydroxy hydrazides and 2fPBA. C-Terminal β-hydroxy hydrazide proteins are available using conventional biochemical methods, which alleviates one of the difficulties with applications of bioorthogonal chemical reactions: site-specific incorporation of a reactive group into the biomolecular target. Using sortase-mediated ligation (SML), C-terminal threonine and serine hydrazides were appended to a model eGFP protein in high yield. Subsequent labeling with 2fPBA functionalized probes could be performed quickly and quantitatively at neutral pH using micromolar concentrations of reactants. The SML process was applied directly to an expressed protein in cellular extract, and the C-terminal modified target protein was selectively immobilized using 2fPBA-agarose. Elution from the agarose yielded a highly pure protein that retained the hydrazide functionality. This strategy should be generally applicable for rapid, efficient site-specific protein labeling, protein immobilization, and preparation of highly pure functionalized proteins.
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Affiliation(s)
- Han Gu
- Department of Chemistry , Binghamton University, State University of New York , Binghamton , New York 13902 , United States
| | - Saptarshi Ghosh
- Department of Chemistry , Binghamton University, State University of New York , Binghamton , New York 13902 , United States
| | - Richard J Staples
- Department of Chemistry and Chemical Biology , Michigan State University , East Lansing , Michigan 48824 , United States
| | - Susan L Bane
- Department of Chemistry , Binghamton University, State University of New York , Binghamton , New York 13902 , United States
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31
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Thangaraj S, Voutilainen S, Andberg M, Koivula A, Jänis J, Rouvinen J. Bioconjugation with Aminoalkylhydrazine for Efficient Mass Spectrometry-Based Detection of Small Carbonyl Compounds. ACS OMEGA 2019; 4:13447-13453. [PMID: 31460473 PMCID: PMC6705233 DOI: 10.1021/acsomega.9b01691] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 07/25/2019] [Indexed: 05/24/2023]
Abstract
Bioconjugation through oxime or hydrazone formation is a versatile strategy for covalent labeling of biomolecules in vitro and in vivo. In this work, a mass spectrometry-based method was developed for the bioconjugation of small carbonyl compounds (CCs) with an aminoalkylhydrazine to form stable hydrazone conjugates that are readily detectable with electrospray ionization mass spectrometry (ESI-MS). Out of all hydrazine reagents tested, 2-(dimethylamino)ethylhydrazine (DMAEH) was selected for further analysis due to the fastest reaction rates observed. A thorough study of the reaction kinetics between structurally varied short-chain CCs and DMAEH was performed with the second-order reaction rate constants spanning in the range of 0.23-208 M-1 s-1. In general, small aldehydes reacted faster than the corresponding ketones. Moreover, a successful reaction monitoring of a deoxyribose-5-phosphate aldolase-catalyzed reversible retro-aldol cleavage of deoxyribose was demonstrated. Thus, the developed method shows potential also for ESI-MS-based enzyme kinetics studies.
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Affiliation(s)
- Senthil
K. Thangaraj
- Department
of Chemistry, University of Eastern Finland, PO Box 111, FI-80101 Joensuu, Finland
| | - Sanni Voutilainen
- VTT
Technical Research Centre of Finland Ltd, PO Box 1000, FI-020444 VTT, Espoo, Finland
| | - Martina Andberg
- VTT
Technical Research Centre of Finland Ltd, PO Box 1000, FI-020444 VTT, Espoo, Finland
| | - Anu Koivula
- VTT
Technical Research Centre of Finland Ltd, PO Box 1000, FI-020444 VTT, Espoo, Finland
| | - Janne Jänis
- Department
of Chemistry, University of Eastern Finland, PO Box 111, FI-80101 Joensuu, Finland
| | - Juha Rouvinen
- Department
of Chemistry, University of Eastern Finland, PO Box 111, FI-80101 Joensuu, Finland
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32
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Lorenzo D, Romero A, Del-Arco L, Santos A. Linear Amides in Caprolactam from Linear Ketone Impurities in Cyclohexanone Obtained from Cyclohexane: Kinetics and Identification. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01997] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- D. Lorenzo
- Chemical Engineering and Materials Department, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - A. Romero
- Chemical Engineering and Materials Department, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - L. Del-Arco
- Chemical Engineering and Materials Department, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - A. Santos
- Chemical Engineering and Materials Department, Universidad Complutense de Madrid, Madrid 28040, Spain
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33
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Sahyoun T, Arrault A, Schneider R. Amidoximes and Oximes: Synthesis, Structure, and Their Key Role as NO Donors. Molecules 2019; 24:molecules24132470. [PMID: 31284390 PMCID: PMC6651102 DOI: 10.3390/molecules24132470] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 07/02/2019] [Accepted: 07/02/2019] [Indexed: 01/26/2023] Open
Abstract
Nitric oxide (NO) is naturally synthesized in the human body and presents many beneficial biological effects; in particular on the cardiovascular system. Recently; many researchers tried to develop external sources to increase the NO level in the body; for example by using amidoximes and oximes which can be oxidized in vivo and release NO. In this review; the classical methods and most recent advances for the synthesis of both amidoximes and oximes are presented first. The isomers of amidoximes and oximes and their stabilities will also be described; (Z)-amidoximes and (Z)-oximes being usually the most energetically favorable isomers. This manuscript details also the biomimetic and biological pathways involved in the oxidation of amidoximes and oximes. The key role played by cytochrome P450 or other dihydronicotinamide-adenine dinucleotide phosphate (NADPH)-dependent reductase pathways is demonstrated. Finally, amidoximes and oximes exhibit important effects on the relaxation of both aortic and tracheal rings alongside with other effects as the decrease of the arterial pressure and of the thrombi formation
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Affiliation(s)
- Tanya Sahyoun
- Laboratoire de Chimie Physique Macromoléculaire, Université de Lorraine, CNRS, LCPM, F-54000 Nancy, France
| | - Axelle Arrault
- Laboratoire de Chimie Physique Macromoléculaire, Université de Lorraine, CNRS, LCPM, F-54000 Nancy, France.
| | - Raphaël Schneider
- Laboratoire Réactions et Génie des Procédés, Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France.
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34
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Sibakoti TR, Stinger CR, Adhihetty PK, Zamborini FP, Nantz MH. Tunable Aminooxy-Functionalized Monolayer-Protected Gold Clusters for Non-Polar or Aqueous Oximation Reactions. PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION : MEASUREMENT AND DESCRIPTION OF PARTICLE PROPERTIES AND BEHAVIOR IN POWDERS AND OTHER DISPERSE SYSTEMS 2019; 36:1900093. [PMID: 33299268 PMCID: PMC7723347 DOI: 10.1002/ppsc.201900093] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Indexed: 06/10/2023]
Abstract
Aminooxy (-ONH2) groups are well known for their chemoselective reactions with carbonyl compounds, specifically aldehydes and ketones. The versatility of aminooxy chemistry has proven to be an attractive feature that continues to stimulate new applications. This work describes application of aminooxy 'click chemistry' on the surface of gold nanoparticles. We present here a trifunctional amine-containing aminooxy alkane thiol ligand for use in the functionalization of gold monolayer protected clusters (Au MPCs). Diethanolamine is readily transformed into an organic-soluble aminooxy thiol (AOT) ligand using a short synthetic path. The synthesized AOT ligand was coated on ≤ 2 nm diameter hexanethiolate (C6S)-capped Au MPCs using a ligand exchange protocol to afford organic-soluble AOT/C6S (1:1 ratio) Au mixed monolayer protected clusters (MMPCs). This work describes the synthesis of Au(C6S)(AOT) MMPCs and representative oximation reactions with various types of aldehyde-containing molecules, highlighting the ease and versatility of the chemistry and how amine protonation can be used to switch solubility characteristics.
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Affiliation(s)
- Tirtha R Sibakoti
- Department of Chemistry, University of Louisville, Louisville, KY 40208, USA
| | - Colton R Stinger
- Department of Chemistry, University of Louisville, Louisville, KY 40208, USA
| | | | - Francis P Zamborini
- Department of Chemistry, University of Louisville, Louisville, KY 40208, USA
| | - Michael H Nantz
- Department of Chemistry, University of Louisville, Louisville, KY 40208, USA
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35
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Xu Y, Wang Y, Liu P, Chu GC, Xu H, Li YM, Wang J, Shi J. Catalyst free hydrazone ligation for protein labeling and modification using electron-deficient benzaldehyde reagents. Org Biomol Chem 2019; 16:7036-7040. [PMID: 30238118 DOI: 10.1039/c8ob01810c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Bioorthogonal reactions have emerged as valuable tools for site-specific protein labeling and modification in vitro and in vivo. Hydrazone and oxime ligation has recently attracted considerable attention for wide applications in the conjugation of biomolecules. However, this kind of reaction has suffered from slow kinetics under physiological conditions and toxicity or complications of the reaction system due to catalysts. In this work we have developed an electron-deficient benzaldehyde reagent, which can be easily equipped with various types of bio-functional molecules for catalyst-free hydrazone ligation. The reagent can be equipped with not only small molecules such as fluorescence dyes or drugs, but also macromolecules like PEG. These can be precisely ligated to the C-terminus of proteins by an efficient hydrazone reaction at neutral pH and room temperature. The new reagent based catalyst-free hydrazone ligation provides a practical approach for the site specific modification of proteins.
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Affiliation(s)
- Yang Xu
- School of Biological and Medical Engineering, Hefei University of Technology, Hefei 230009, P. R. China.
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36
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Ogunwale MA, Knipp RJ, Evrard CN, Thompson LM, Nantz MH, Fu XA. The Influence of β-Ammonium Substitution on the Reaction Kinetics of Aminooxy Condensations with Aldehydes and Ketones. Chemphyschem 2019; 20:815-822. [PMID: 30725495 DOI: 10.1002/cphc.201801143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/05/2019] [Indexed: 11/06/2022]
Abstract
The click-chemistry capture of volatile aldehydes and ketones by ammonium aminooxy compounds has proven to be an efficient means of analyzing the carbonyl subset in complex mixtures, such as exhaled breath or environmental air. In this work, we examine the carbonyl condensation reaction kinetics of three aminooxy compounds with varying β-ammonium ion substitution using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). We determined the activation energies for the reactions of the aminooxy compounds ATM, ADMH and AMAH with a panel of ketones and aldehydes that included acrolein and crotonaldehyde. The measurements indicate that the activation energies for the oximation reactions are quite low, less than 75 kJ mol-1 . ADMH is observed to react the fastest with the carbonyls studied. We postulate this result may be attributed to the ADMH ammonium proton effecting a Brønsted-Lowry acid-catalyzed elimination of water during the rate-determining step of oxime ether formation. A theoretical study of oxime ether formation is presented to explain the enhanced reactivity of ADMH relative to the tetraalkylammonium analog ATM.
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Affiliation(s)
- Mumiye A Ogunwale
- Department of Chemistry, University of Louisville, Louisville, KY 40208, USA
| | - Ralph J Knipp
- Department of Chemistry, University of Louisville, Louisville, KY 40208, USA
| | - Clint N Evrard
- Department of Chemistry, University of Louisville, Louisville, KY 40208, USA
| | - Lee M Thompson
- Department of Chemistry, University of Louisville, Louisville, KY 40208, USA
| | - Michael H Nantz
- Department of Chemistry, University of Louisville, Louisville, KY 40208, USA
| | - Xiao-An Fu
- Department of Chemical Engineering, University of Louisville, Louisville, KY 40208, USA
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Abstract
Delivery remains a major obstacle restricting the potential action of small molecular drugs as well as novel biologics which cannot readily enter cells without the help of a vector. A successful active delivery process involves three steps: (a) tagging the drug with a vector, (b) effective trafficking of this [drug-vector] conjugate through biological barriers, and finally (c) controlled drug release. While covalent bond formation and/or supramolecular association is involved in the making of the [drug-vector] conjugate, the final step requires precisely a controlled dissociation in order to trigger drug release. Therefore, in pursuit of smart, effective, and nontoxic delivery systems, it has become widely recognized that control over dynamic self-assembly could unleash the efficacy of artificial vectors. In this Account, I discuss our endeavors, and those of colleagues, in the recent implementation of Dynamic Covalent Chemistry (DCvC) in delivery applications. DCvC exploits reversible covalent reactions to generate covalent systems that can self-fabricate, adapt, respond, and fall apart in a controlled fashion. A privileged set of reversible covalent reactions has emerged in the community working on delivery applications and is based on condensation reactions (imine, acylhydrazone, oxime), and disulfide and boronate ester formations. The latest developments making this chemistry particularly attractive for such a DCvC approach are discussed. The rational justifying the potential of DCvC in delivery is based on the principle that using such reversible covalent reactions afford transient [drug-vector] conjugates which form spontaneously and chemoselectively, then adapt and self-correct their structure during self-assembly and trafficking thanks to the dynamic nature of the reversible covalent bonds, and finally respond to physicochemical stimuli such as pH and redox changes, thereby enabling controlled dissociation and concomitant drug release. For these reasons, DCvC has recently emerged as a leverage tool with growing prospects for advancing toward smarter delivery systems. The implementation of DCvC can follow three approaches that are discussed herein: (1) dynamic covalent bioconjugates, involving the transient covalent conjugation with a vector, (2) dynamic covalent vectors, involving the controlled dynamic and adaptive assembly and disassembly of vectors that complex drugs through supramolecular association, and (3) dynamic covalent targeting, involving the transient chemoselective formation of covalent bonds with the constituents of cell membranes. While DCvC has already attracted interest in material sciences, the recent results described in this Account showcase the vast potential of DCvC in biological sciences, and in particular in delivery applications where self-fabricated, adaptive, and responsive devices are of utmost importance.
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Affiliation(s)
- Sébastien Ulrich
- IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
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38
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Higgs PL, Ruiz-Sanchez AJ, Dalmina M, Horrocks BR, Leach AG, Fulton DA. Enhancing the kinetics of hydrazone exchange processes: an experimental and computational study. Org Biomol Chem 2019; 17:3218-3224. [DOI: 10.1039/c9ob00058e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Hydrogen-bond acceptors (A) stabilize the transition state, lowering the energy barrier to rapid hydrazone exchange, without need for exogenous catalyst.
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Affiliation(s)
- Patrick L. Higgs
- Chemical Nanoscience Laboratory
- Chemistry-School of Natural and Environmental Sciences
- Bedson Building
- Newcastle University
- Newcastle upon Tyne
| | - Antonio J. Ruiz-Sanchez
- Chemical Nanoscience Laboratory
- Chemistry-School of Natural and Environmental Sciences
- Bedson Building
- Newcastle University
- Newcastle upon Tyne
| | - Milene Dalmina
- Chemical Nanoscience Laboratory
- Chemistry-School of Natural and Environmental Sciences
- Bedson Building
- Newcastle University
- Newcastle upon Tyne
| | - Benjamin R. Horrocks
- Chemical Nanoscience Laboratory
- Chemistry-School of Natural and Environmental Sciences
- Bedson Building
- Newcastle University
- Newcastle upon Tyne
| | - Andrew G. Leach
- School of Pharmacy and Biomolecular Sciences
- James Parsons Building
- Liverpool John Moores University
- Liverpool
- UK
| | - David A. Fulton
- Chemical Nanoscience Laboratory
- Chemistry-School of Natural and Environmental Sciences
- Bedson Building
- Newcastle University
- Newcastle upon Tyne
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39
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Kosmalski T, Studzińska R, Daniszewska N, Ullrich M, Sikora A, Marszałł M, Modzelewska‐Banachiewicz B. Study of the Room-Temperature Synthesis of Oxime Ethers by using a Super Base. ChemistryOpen 2018; 7:551-557. [PMID: 30065906 PMCID: PMC6058178 DOI: 10.1002/open.201800098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Indexed: 12/19/2022] Open
Abstract
In this study, we present a convenient method for the synthesis of oxime ethers by reacting oximes with various chlorides (alkyl, functionalized alkyl, and benzyl) and with the subsequent use of a super base-pulverized potassium hydroxide in DMSO. The reactions take place at room temperature and the products are obtained in high yields. The final products were received within 2 min to 3 h. In addition, the compounds do not require chromatographic separation. The structure elucidation of the titled compounds was performed by using 1H NMR and 13C NMR spectroscopy as well as mass spectrometry. The presented method of synthesis for oxime ethers is environmentally friendly, because neither water cooling or heating of the reaction mixture/solvents (necessary for chromatographic purification) is required. The synthesis can be carried out very easily on a large scale.
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Affiliation(s)
- Tomasz Kosmalski
- Department of Organic ChemistryFaculty of Pharmacy Collegium MedicumNicolaus Copernicus UniversityJurasza 285-067BydgoszczPoland
| | - Renata Studzińska
- Department of Organic ChemistryFaculty of Pharmacy Collegium MedicumNicolaus Copernicus UniversityJurasza 285-067BydgoszczPoland
| | - Natalia Daniszewska
- Department of Organic ChemistryFaculty of Pharmacy Collegium MedicumNicolaus Copernicus UniversityJurasza 285-067BydgoszczPoland
| | - Małgorzata Ullrich
- Department of Organic ChemistryFaculty of ChemistryNicolaus Copernicus UniversityGagarina 787-100ToruńPoland
| | - Adam Sikora
- Medicinal Chemistry Department Faculty of Pharmacy, Collegium MedicumNicolaus Copernicus UniversityJurasza 285-067BydgoszczPoland
| | - Michał Marszałł
- Medicinal Chemistry Department Faculty of Pharmacy, Collegium MedicumNicolaus Copernicus UniversityJurasza 285-067BydgoszczPoland
| | - Bożena Modzelewska‐Banachiewicz
- Department of Organic ChemistryFaculty of Pharmacy Collegium MedicumNicolaus Copernicus UniversityJurasza 285-067BydgoszczPoland
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40
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Dang T, Suchy M, Truong YJ, Oakden W, Lam WW, Lazurko C, Facey G, Stanisz GJ, Shuhendler AJ. Hydrazo-CEST: Hydrazone-Dependent Chemical Exchange Saturation Transfer Magnetic Resonance Imaging Contrast Agents. Chemistry 2018; 24:9148-9156. [PMID: 29645309 DOI: 10.1002/chem.201801671] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Indexed: 11/06/2022]
Abstract
The rapid formation of hydrazones under physiological conditions was exploited for the detection of aldehydes through chemical exchange saturation transfer magnetic resonance imaging (CEST-MRI). A metal-free, diamagnetic contrast agent derived from N-amino anthranilic acid was introduced, which selectively "turned-on" upon hydrazone formation through an effect termed Hydrazo-CEST. While the hydrazine form of the probe produced no CEST-MRI signal enhancement, the formation of the aryl hydrazone resulted in >20 % intensity decrease in the bulk water signal through the CEST effect, as measured by 300 MHz 1 H NMR, 3 T and 7 T MRI. Both the electronic contributions of the N-amino anthranilate and the aldehyde binding partner were shown to directly impact the exchange rate of the proton on the ring-proximal nitrogen, and thus the imaging signal. Additionally, the presence of the carboxylic acid moiety ortho to the hydrazine was necessary not only for contrast production, but also for rapid hydrazone formation and prolonged hydrazone product stability under physiological conditions. This work provided the first example of an MRI-based contrast agent capable of a "turn on" response upon reaction with bioactive aldehydes, and outlined both the structural and electronic requirements to expand on Hydrazo-CEST, a novel, hydrazone-dependent subtype of diamagnetic CEST-MRI.
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Affiliation(s)
- Trina Dang
- Department of Chemistry & Biomolecular Sciences, University of Ottawa, Ottawa, ON, Canada
| | - Mojmír Suchy
- Department of Chemistry & Biomolecular Sciences, University of Ottawa, Ottawa, ON, Canada.,University of Ottawa Heart Institute, Ottawa, ON, Canada
| | - Yen J Truong
- Department of Chemistry & Biomolecular Sciences, University of Ottawa, Ottawa, ON, Canada
| | - Wendy Oakden
- Department of Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Wilfred W Lam
- Department of Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Caitlin Lazurko
- Department of Chemistry & Biomolecular Sciences, University of Ottawa, Ottawa, ON, Canada
| | - Glenn Facey
- Department of Chemistry & Biomolecular Sciences, University of Ottawa, Ottawa, ON, Canada
| | - Greg J Stanisz
- Department of Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada.,Department of Biomedical Physics, University of Toronto, Toronto, ON, Canada.,Department of Neurosurgery and Pediatric Neurosurgery, Medical University, Lublin, Poland
| | - Adam J Shuhendler
- Department of Chemistry & Biomolecular Sciences, University of Ottawa, Ottawa, ON, Canada.,University of Ottawa Heart Institute, Ottawa, ON, Canada
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41
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Trausel F, Fan B, van Rossum SAP, van Esch JH, Eelkema R. Aniline Catalysed Hydrazone Formation Reactions Show a Large Variation in Reaction Rates and Catalytic Effects. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800342] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Fanny Trausel
- Department of Chemical Engineering; Delft University of Technology; van der Maasweg 9 2629 HZ Delft, the Netherlands
| | - Bowen Fan
- Department of Chemical Engineering; Delft University of Technology; van der Maasweg 9 2629 HZ Delft, the Netherlands
| | - Susan A. P. van Rossum
- Department of Chemical Engineering; Delft University of Technology; van der Maasweg 9 2629 HZ Delft, the Netherlands
| | - Jan H. van Esch
- Department of Chemical Engineering; Delft University of Technology; van der Maasweg 9 2629 HZ Delft, the Netherlands
| | - Rienk Eelkema
- Department of Chemical Engineering; Delft University of Technology; van der Maasweg 9 2629 HZ Delft, the Netherlands
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42
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Hewitt SH, Wilson AJ. Generation of Dynamic Combinatorial Libraries Using Hydrazone-Functionalized Surface Mimetics. European J Org Chem 2018; 2018:1872-1879. [PMID: 29780280 PMCID: PMC5947633 DOI: 10.1002/ejoc.201800022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Indexed: 01/01/2023]
Abstract
Dynamic combinatorial chemistry (DCC) represents an approach, whereby traditional supramolecular scaffolds used for protein surface recognition might be exploited to achieve selective high affinity target recognition. Synthesis, in situ screening and amplification under selection pressure allows the generation of ligands, which bear different moieties capable of making multivalent non‐covalent interactions with target proteins. Generic tetracarboxyphenyl porphyrin scaffolds bearing four hydrazide moieties have been used to form dynamic combinatorial libraries (DCLs) using aniline‐catalyzed reversible hydrazone exchange reactions, in 10 % DMSO, 5 mm NH4OAc, at pH 6.75. High resolution mass spectrometry (HRMS) was used to monitor library composition and establish conditions under which equilibria were established.
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Affiliation(s)
- Sarah H Hewitt
- School of Chemistry University of Leeds Woodhouse Lane 9JT Leeds LS2 UK.,Astbury Centre for Structural Molecular Biology University of Leeds Woodhouse Lane 9JT Leeds LS2 UK
| | - Andrew J Wilson
- School of Chemistry University of Leeds Woodhouse Lane 9JT Leeds LS2 UK.,Astbury Centre for Structural Molecular Biology University of Leeds Woodhouse Lane 9JT Leeds LS2 UK
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43
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Apostolides DE, Patrickios CS. Dynamic covalent polymer hydrogels and organogels crosslinked through acylhydrazone bonds: synthesis, characterization and applications. POLYM INT 2018. [DOI: 10.1002/pi.5554] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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44
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Nisal R, P. Jose G, Shanbhag C, Kalia J. Rapid and reversible hydrazone bioconjugation in cells without the use of extraneous catalysts. Org Biomol Chem 2018; 16:4304-4310. [DOI: 10.1039/c8ob00946e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Rapid, catalyst-free and reversible bioconjugation in mammalian cells.
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Affiliation(s)
- Rahul Nisal
- Indian Institute of Science Education and Research (IISER) Pune
- Pune-411008
- India
| | - Gregor P. Jose
- Indian Institute of Science Education and Research (IISER) Pune
- Pune-411008
- India
| | - Chitra Shanbhag
- Indian Institute of Science Education and Research (IISER) Pune
- Pune-411008
- India
| | - Jeet Kalia
- Indian Institute of Science Education and Research (IISER) Pune
- Pune-411008
- India
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45
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Abstract
The formation of oximes and hydrazones is employed in numerous scientific fields as a simple and versatile conjugation strategy. This imine-forming reaction is applied in fields as diverse as polymer chemistry, biomaterials and hydrogels, dynamic combinatorial chemistry, organic synthesis, and chemical biology. Here we outline chemical developments in this field, with special focus on the past ∼10 years of developments. Recent strategies for installing reactive carbonyl groups and α-nucleophiles into biomolecules are described. The basic chemical properties of reactants and products in this reaction are then reviewed, with an eye to understanding the reaction's mechanism and how reactant structure controls rates and equilibria in the process. Recent work that has uncovered structural features and new mechanisms for speeding the reaction, sometimes by orders of magnitude, is discussed. We describe recent studies that have identified especially fast reacting aldehyde/ketone substrates and structural effects that lead to rapid-reacting α-nucleophiles as well. Among the most effective new strategies has been the development of substituents near the reactive aldehyde group that either transfer protons at the transition state or trap the initially formed tetrahedral intermediates. In addition, the recent development of efficient nucleophilic catalysts for the reaction is outlined, improving greatly upon aniline, the classical catalyst for imine formation. A number of uses of such second- and third-generation catalysts in bioconjugation and in cellular applications are highlighted. While formation of hydrazone and oxime has been traditionally regarded as being limited by slow rates, developments in the past 5 years have resulted in completely overturning this limitation; indeed, the reaction is now one of the fastest and most versatile reactions available for conjugations of biomolecules and biomaterials.
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Affiliation(s)
- Dominik K Kölmel
- Department of Chemistry, Stanford University , Stanford, California 94305, United States
| | - Eric T Kool
- Department of Chemistry, Stanford University , Stanford, California 94305, United States
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46
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Kulchat S, Chaur MN, Lehn JM. Kinetic Selectivity and Thermodynamic Features of Competitive Imine Formation in Dynamic Covalent Chemistry. Chemistry 2017. [DOI: 10.1002/chem.201702088] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Sirinan Kulchat
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires (ISIS); Université de Strasbourg; 8 allée Gaspard Monge, BP 70028 67000 Strasbourg Cedex France
- Materials Chemistry Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science; Khon Kaen University, Nai Muang, Muang; Khon Kaen 40002 Thailand
| | - Manuel N. Chaur
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires (ISIS); Université de Strasbourg; 8 allée Gaspard Monge, BP 70028 67000 Strasbourg Cedex France
- Departamento de Química; Universidad del Valle; Cali Colombia
| | - Jean-Marie Lehn
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires (ISIS); Université de Strasbourg; 8 allée Gaspard Monge, BP 70028 67000 Strasbourg Cedex France
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47
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Nardi M, D'Acunzo F, Clemente M, Proietti G, Gentili P. A first study on copolymers of a methacrylate containing the 2-(hydroxyimino)aldehyde group and OEGMA. RAFT polymerization and assessment of thermal and photoresponsive polymer behavior. Polym Chem 2017. [DOI: 10.1039/c7py00975e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
RAFT copolymerization of 4-[(hydroxyimino)aldehyde]butyl methacrylate with OEGMA475 and first assessment of photoisomerization and thermal behavior of the copolymers in solution.
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Affiliation(s)
- Martina Nardi
- Dipartimento di Chimica
- Università degli Studi “La Sapienza” P.le A. Moro 5
- 00185 Rome
- Italy
- CNR
| | - Francesca D'Acunzo
- CNR
- Istituto di Metodologie Chimiche
- Sezione Meccanismi di Reazione c/o Dipartimento di Chimica
- Università degli Studi “La Sapienza” P.le A. Moro 5
- 00185 Roma
| | - Mariangela Clemente
- Dipartimento di Chimica
- Università degli Studi “La Sapienza” P.le A. Moro 5
- 00185 Rome
- Italy
| | - Giampiero Proietti
- Dipartimento di Chimica
- Università degli Studi “La Sapienza” P.le A. Moro 5
- 00185 Rome
- Italy
| | - Patrizia Gentili
- Dipartimento di Chimica
- Università degli Studi “La Sapienza” P.le A. Moro 5
- 00185 Rome
- Italy
- CNR
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48
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Maxson T, Tietz JI, Hudson GA, Guo XR, Tai HC, Mitchell DA. Targeting Reactive Carbonyls for Identifying Natural Products and Their Biosynthetic Origins. J Am Chem Soc 2016; 138:15157-15166. [PMID: 27797509 DOI: 10.1021/jacs.6b06848] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Natural products (NPs) serve important roles as drug candidates and as tools for chemical biology. However, traditional NP discovery, largely based on bioassay-guided approaches, is biased toward abundant compounds and rediscovery rates are high. Orthogonal methods to facilitate discovery of new NPs are thus needed, and herein we describe an isotope tag-based expansion of reactivity-based NP screening to address these shortcomings. Reactivity-based screening is a directed discovery approach in which a specific reactive handle on the NP is targeted by a chemoselective probe to enable its detection by mass spectrometry. In this study, we have developed an aminooxy-containing probe to guide the discovery of aldehyde- and ketone-containing NPs. To facilitate the detection of labeling events, the probe was dibrominated, imparting a unique isotopic signature to distinguish labeled metabolites from spectral noise. As a proof of concept, the probe was then utilized to screen a collection of bacterial extracts, leading to the identification of a new analogue of antipain, deimino-antipain. The bacterial producer of deimino-antipain was sequenced and the responsible biosynthetic gene cluster was identified by bioinformatic analysis and heterologous expression. These data reveal the previously undetermined genetic basis for a well-known family of aldehyde-containing, peptidic protease inhibitors, including antipain, chymostatin, leupeptin, elastatinal, and microbial alkaline protease inhibitor, which have been widely used for over 40 years.
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Affiliation(s)
- Tucker Maxson
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Jonathan I Tietz
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Graham A Hudson
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Xiao Rui Guo
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Hua-Chia Tai
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Douglas A Mitchell
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States.,Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States.,Department of Microbiology, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
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49
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Morales S, Aceña JL, García Ruano JL, Cid MB. Sustainable Synthesis of Oximes, Hydrazones, and Thiosemicarbazones under Mild Organocatalyzed Reaction Conditions. J Org Chem 2016; 81:10016-10022. [PMID: 27668816 DOI: 10.1021/acs.joc.6b01912] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Pyrrolidine catalyzes very efficiently, presumably via iminium activation, the formation of acyloximes, acylhydrazones, and thiosemicarbazones derived from aromatic and aliphatic aldehydes using equimolar amounts of reagents and green solvents. Experimental simplicity and excellent yields after a simple filtration are the main advantages of the method, being an alternative to those currently available especially for the acyl derivatives, which do not work under uncatalyzed conditions. Its application to the synthesis of acyloximes by direct condensation between aldehydes and acylhydroxylamines is unprecedented.
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Affiliation(s)
- Sara Morales
- Department of Organic Chemistry, Universidad Autónoma de Madrid , Cantoblanco, 28049 Madrid, Spain
| | - José Luis Aceña
- Department of Organic Chemistry, Universidad Autónoma de Madrid , Cantoblanco, 28049 Madrid, Spain
| | - José Luis García Ruano
- Department of Organic Chemistry, Universidad Autónoma de Madrid , Cantoblanco, 28049 Madrid, Spain
| | - M Belén Cid
- Department of Organic Chemistry, Universidad Autónoma de Madrid , Cantoblanco, 28049 Madrid, Spain
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50
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Lascano S, Zhang KD, Wehlauch R, Gademann K, Sakai N, Matile S. The third orthogonal dynamic covalent bond. Chem Sci 2016; 7:4720-4724. [PMID: 30155121 PMCID: PMC6014071 DOI: 10.1039/c6sc01133k] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 04/09/2016] [Indexed: 01/30/2023] Open
Abstract
Orthogonal dynamic covalent bonds are of interest for the construction of functional systems. The orthogonality of disulfide and hydrazone exchange under basic and acidic conditions, respectively, is well established. However, the integration of boronate esters as the third bond has failed so far because they exchanged too easily, especially under hydrazone exchange conditions. In this report, a collection of bioinspired catechols derived from adhesive natural products from cyanobacteria is screened with phenylboronic acids with proximal alcohols (benzoboroxoles), amines and fluorines to identify the least labile boronate esters. Moreover, Kool's 2-aminophenol catalysts are introduced to selectively accelerate hydrazone exchange without disturbing sufficiently inert boronate esters. Based on these results, we identified three different conditions to selectively exchange disulfides, hydrazones and boronate esters, that is to demonstrate the existence of three orthogonal dynamic covalent bonds. Moreover, their compatibility with functional systems is confirmed by successful hydrazone exchange in multicomponent surface architectures in the presence of intact boronate esters and disulfides.
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Affiliation(s)
- Santiago Lascano
- National Centre of Competence in Research (NCCR) , Molecular Systems Engineering (MSE) , Switzerland . http://www.nccr-mse.ch
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; ; Tel: +41 22 379 6523
| | - Kang-Da Zhang
- National Centre of Competence in Research (NCCR) , Molecular Systems Engineering (MSE) , Switzerland . http://www.nccr-mse.ch
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; ; Tel: +41 22 379 6523
| | - Robin Wehlauch
- National Centre of Competence in Research (NCCR) , Molecular Systems Engineering (MSE) , Switzerland . http://www.nccr-mse.ch
- Department of Chemistry , University of Zurich , Zurich , Switzerland
| | - Karl Gademann
- National Centre of Competence in Research (NCCR) , Molecular Systems Engineering (MSE) , Switzerland . http://www.nccr-mse.ch
- Department of Chemistry , University of Zurich , Zurich , Switzerland
| | - Naomi Sakai
- National Centre of Competence in Research (NCCR) , Molecular Systems Engineering (MSE) , Switzerland . http://www.nccr-mse.ch
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; ; Tel: +41 22 379 6523
| | - Stefan Matile
- National Centre of Competence in Research (NCCR) , Molecular Systems Engineering (MSE) , Switzerland . http://www.nccr-mse.ch
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; ; Tel: +41 22 379 6523
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