51
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Imaging of a clickable anticancer iridium catalyst. J Inorg Biochem 2018; 180:179-185. [DOI: 10.1016/j.jinorgbio.2017.12.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 12/06/2017] [Accepted: 12/24/2017] [Indexed: 12/24/2022]
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52
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Favre C, de Cremoux L, Badaut J, Friscourt F. Sydnone Reporters for Highly Fluorogenic Copper-Free Click Ligations. J Org Chem 2018; 83:2058-2066. [DOI: 10.1021/acs.joc.7b03004] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Camille Favre
- Institut Européen de Chimie et Biologie, Université de Bordeaux, 2 rue Robert Escarpit, 33607 Pessac, France
- Institut de Neurosciences Cognitives et Intégratives d’Aquitaine, CNRS UMR5287, Bordeaux, France
| | - Lucie de Cremoux
- Institut Européen de Chimie et Biologie, Université de Bordeaux, 2 rue Robert Escarpit, 33607 Pessac, France
- Institut de Neurosciences Cognitives et Intégratives d’Aquitaine, CNRS UMR5287, Bordeaux, France
| | - Jerome Badaut
- Institut de Neurosciences Cognitives et Intégratives d’Aquitaine, CNRS UMR5287, Bordeaux, France
- Basic
Science Department, Loma Linda University, Loma Linda, California 92350, United States
| | - Frédéric Friscourt
- Institut Européen de Chimie et Biologie, Université de Bordeaux, 2 rue Robert Escarpit, 33607 Pessac, France
- Institut de Neurosciences Cognitives et Intégratives d’Aquitaine, CNRS UMR5287, Bordeaux, France
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53
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Siegl SJ, Vázquez A, Dzijak R, Dračínský M, Galeta J, Rampmaier R, Klepetářová B, Vrabel M. Design and Synthesis of Aza-Bicyclononene Dienophiles for Rapid Fluorogenic Ligations. Chemistry 2018; 24:2426-2432. [PMID: 29243853 DOI: 10.1002/chem.201705188] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Indexed: 12/15/2022]
Abstract
Fluorogenic bioorthogonal reactions enable visualization of biomolecules under native conditions with excellent signal-to-noise ratio. Here, we present the design and synthesis of conformationally-strained aziridine-fused trans-cyclooctene (aza-TCO) dienophiles, which lead to the formation of fluorescent products in tetrazine ligations without the need for attachment of an extra fluorophore moiety. The presented aza-TCOs adopt the highly strained "half-chair" conformation, which was predicted computationally and confirmed by NMR measurements and X-ray crystallography. Kinetic studies revealed that the aza-TCOs belong to the most reactive dienophiles known to date. The potential of the newly developed aza-TCO probes for bioimaging applications is demonstrated by protein labeling experiments, imaging of cellular glycoconjugates and peptidoglycan imaging of live bacteria.
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Affiliation(s)
- Sebastian J Siegl
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nám. 2, 16610, Prague 6, Czech Republic
| | - Arcadio Vázquez
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nám. 2, 16610, Prague 6, Czech Republic
| | - Rastislav Dzijak
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nám. 2, 16610, Prague 6, Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nám. 2, 16610, Prague 6, Czech Republic
| | - Juraj Galeta
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nám. 2, 16610, Prague 6, Czech Republic
| | - Robert Rampmaier
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nám. 2, 16610, Prague 6, Czech Republic
| | - Blanka Klepetářová
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nám. 2, 16610, Prague 6, Czech Republic
| | - Milan Vrabel
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nám. 2, 16610, Prague 6, Czech Republic
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54
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Quantitative Construction of C≡C Bond: Renaissance of Reductive Coupling of Benzotribromides Promoted by Cu/Polyamine. ChemistrySelect 2018. [DOI: 10.1002/slct.201702778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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55
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Du K, Niu S, Chen X, Zhang P. A novel highly selective ratiometric fluorescent sensor for relay recognition of Zn 2+ and H 2 PO 4 −. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2017.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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56
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Decuypère E, Riomet M, Sallustrau A, Bregant S, Thai R, Pieters G, Clavier G, Audisio D, Taran F. Sydnone-coumarins as clickable turn-on fluorescent sensors for molecular imaging. Chem Commun (Camb) 2018; 54:10758-10761. [DOI: 10.1039/c8cc06070c] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Sydnone-coumarin compounds are interesting turn-on fluorogenic probes for protein labeling.
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Affiliation(s)
- Elodie Decuypère
- Service de Chimie Bio-organique et Marquage DRF-JOLIOT-SCBM
- CEA
- Université Paris-Saclay
- 91191 Gif-sur-Yvette
- France
| | - Margaux Riomet
- Service de Chimie Bio-organique et Marquage DRF-JOLIOT-SCBM
- CEA
- Université Paris-Saclay
- 91191 Gif-sur-Yvette
- France
| | - Antoine Sallustrau
- Service de Chimie Bio-organique et Marquage DRF-JOLIOT-SCBM
- CEA
- Université Paris-Saclay
- 91191 Gif-sur-Yvette
- France
| | - Sarah Bregant
- Service d'Ingénierie Moléculaire des Protéines DRF-JOLIOT-SIMOPRO, CEA
- Université Paris-Saclay
- 91191 Gif-sur-Yvette
- France
| | - Robert Thai
- Service d'Ingénierie Moléculaire des Protéines DRF-JOLIOT-SIMOPRO, CEA
- Université Paris-Saclay
- 91191 Gif-sur-Yvette
- France
| | - Grégory Pieters
- Service de Chimie Bio-organique et Marquage DRF-JOLIOT-SCBM
- CEA
- Université Paris-Saclay
- 91191 Gif-sur-Yvette
- France
| | - Gilles Clavier
- PPSM, ENS Cachan
- CNRS
- Université Paris-Saclay
- 94235 Cachan
- France
| | - Davide Audisio
- Service de Chimie Bio-organique et Marquage DRF-JOLIOT-SCBM
- CEA
- Université Paris-Saclay
- 91191 Gif-sur-Yvette
- France
| | - Frédéric Taran
- Service de Chimie Bio-organique et Marquage DRF-JOLIOT-SCBM
- CEA
- Université Paris-Saclay
- 91191 Gif-sur-Yvette
- France
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57
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Shang X, Lai R, Song X, Li H, Niu W, Guo J. Improved Photoinduced Fluorogenic Alkene-Tetrazole Reaction for Protein Labeling. Bioconjug Chem 2017; 28:2859-2864. [PMID: 29022697 DOI: 10.1021/acs.bioconjchem.7b00562] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The 1,3-dipolar cycloaddition reaction between an alkene and a tetrazole represents one elegant and rare example of fluorophore-forming bioorthogonal chemistry. This is an attractive reaction for imaging applications in live cells that requires less intensive washing steps and/or needs spatiotemporal resolutions. In the present work, as an effort to improve the fluorogenic property of the alkene-tetrazole reaction, an aromatic alkene (styrene) was investigated as the dipolarophile. Over 30-fold improvement in quantum yield of the reaction product was achieved in aqueous solution. According to our mechanistic studies, the observed improvement is likely due to an insufficient protonation of the styrene-tetrazole reaction product. This finding provides useful guidance to the future design of alkene-tetrazole reactions for biological studies. Fluorogenic protein labeling using the styrene-tetrazole reaction was demonstrated both in vitro and in vivo. This was realized by the genetic incorporation of an unnatural amino acid containing the styrene moiety. It is anticipated that the combination of styrene with different tetrazole derivatives can generally improve and broaden the application of alkene-tetrazole chemistry in real-time imaging in live cells.
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Affiliation(s)
- Xin Shang
- Department of Chemistry, ‡Department of Chemistry, Nebraska Center for Materials and Nanoscience, and Center for Integrated Biomolecular Communication, and §Department of Chemical & Biomolecular Engineering, University of Nebraska-Lincoln , Lincoln, Nebraska 68588, United States
| | - Rui Lai
- Department of Chemistry, ‡Department of Chemistry, Nebraska Center for Materials and Nanoscience, and Center for Integrated Biomolecular Communication, and §Department of Chemical & Biomolecular Engineering, University of Nebraska-Lincoln , Lincoln, Nebraska 68588, United States
| | - Xi Song
- Department of Chemistry, ‡Department of Chemistry, Nebraska Center for Materials and Nanoscience, and Center for Integrated Biomolecular Communication, and §Department of Chemical & Biomolecular Engineering, University of Nebraska-Lincoln , Lincoln, Nebraska 68588, United States
| | - Hui Li
- Department of Chemistry, ‡Department of Chemistry, Nebraska Center for Materials and Nanoscience, and Center for Integrated Biomolecular Communication, and §Department of Chemical & Biomolecular Engineering, University of Nebraska-Lincoln , Lincoln, Nebraska 68588, United States
| | - Wei Niu
- Department of Chemistry, ‡Department of Chemistry, Nebraska Center for Materials and Nanoscience, and Center for Integrated Biomolecular Communication, and §Department of Chemical & Biomolecular Engineering, University of Nebraska-Lincoln , Lincoln, Nebraska 68588, United States
| | - Jiantao Guo
- Department of Chemistry, ‡Department of Chemistry, Nebraska Center for Materials and Nanoscience, and Center for Integrated Biomolecular Communication, and §Department of Chemical & Biomolecular Engineering, University of Nebraska-Lincoln , Lincoln, Nebraska 68588, United States
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58
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Delaye PO, Petrignet J, Thiery E, Thibonnet J. Gold-silver catalyzed straightforward one pot synthesis of pyrano[3,4-b]pyrrol-7(1H)-ones. Org Biomol Chem 2017; 15:7290-7295. [PMID: 28850145 DOI: 10.1039/c7ob01849e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pyrano[3,4-b]pyrrol-7(1H)-one is a bicyclic structure that is rarely described in the literature but is found in numerous polycyclic natural products as lamellarins. This work presents a one-pot synthesis of pyrano[3,4-b]pyrrol-7(1H)-one substituted in the 2- and 5-position. The reaction proceeds via a one-pot two step 5-endo-dig and 6-endo-dig cyclization catalyzed by a cationic gold complex with high regioselectivity.
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Affiliation(s)
- P-O Delaye
- Laboratoire Infectiologie Santé Publique - Equipe de Recherche et Innovation en Chimie Médicinale, UMR-UFR INRA 1282, Faculté des Sciences et Techniques de Tours, Parc de Grandmont, 37200 Tours, France.
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59
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Mattarei A, Enzinger M, Gu S, Karunakaran MM, Kimmel B, Berner N, Adams EJ, Herrmann T, Amslinger S. A Photo-Crosslinkable Biotin Derivative of the Phosphoantigen (E)-4-Hydroxy-3-Methylbut-2-Enyl Diphosphate (HMBPP) Activates Vγ9Vδ2 T Cells and Binds to the HMBPP Site of BTN3A1. Chemistry 2017. [PMID: 28631855 DOI: 10.1002/chem.201702650] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Vγ9Vδ2 T cells play an important role in the cross talk of the innate and adaptive immune system. For their activation by phosphoantigens (PAgs), both cell surface receptors, the eponymous Vγ9Vδ2 T cell antigen receptors (Vγ9Vδ2 TCRs) on Vγ9Vδ2 T cells and butyrophilin 3A1 (BTN3A1) on the phosphoantigen-"presenting" cell, are mandatory. To find yet undetected but further contributing proteins, a biotinylated, photo-crosslinkable benzophenone probe BioBP-HMBPP (2) was synthesized from a known allyl alcohol in nine steps and overall 16 % yield. 2 is based on the picomolar PAg (E)-4-hydroxy-3-methylbut-2-enyl diphosphate (HMBPP, 1). Laser irradiation of 2 at 308 nm initiated the photo-crosslinking reaction with proteins. When the B30.2 domain of BTN3A1, which contains a positively charged PAg-binding pocket, was exposed to increasing amounts of HMBPP (1), labeling by BioBP-HMBPP (2) was reduced significantly. Because BSA labeling was not impaired, 2 clearly binds to the same site as natural ligand 1. Thus, BioBP-HMBPP (2) is a suitable tool to identify co-ligands or receptors involved in PAg-mediated T cell activation.
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Affiliation(s)
- Andrea Mattarei
- Institut für Organische Chemie, Universität Regensburg, Universitätsstraße 31, 93053, Regensburg, Germany.,Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo, 1, 35131, Padova, Italy
| | - Monika Enzinger
- Institut für Organische Chemie, Universität Regensburg, Universitätsstraße 31, 93053, Regensburg, Germany
| | - Siyi Gu
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - Mohindar Murugesh Karunakaran
- Institut für Virologie und Immunbiologie, Julius-Maximilians-Universität Würzburg, Versbacherstr. 7, 97078, Würzburg, Germany
| | - Brigitte Kimmel
- Medizinische Klinik und Poliklinik II, Universitätsklinikum Würzburg, Oberdürrbacher Str. 6, 97080, Würzburg, Germany
| | - Nicole Berner
- Institut für Physikalische und Theoretische Chemie, Universität Regensburg, Universitätsstraße 31, 93053, Regensburg, Germany
| | - Erin J Adams
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - Thomas Herrmann
- Institut für Virologie und Immunbiologie, Julius-Maximilians-Universität Würzburg, Versbacherstr. 7, 97078, Würzburg, Germany
| | - Sabine Amslinger
- Institut für Organische Chemie, Universität Regensburg, Universitätsstraße 31, 93053, Regensburg, Germany
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60
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Ruff S, Keller S, Wieland D, Wittmann V, Tovar G, Bach M, Kluger P. clickECM: Development of a cell-derived extracellular matrix with azide functionalities. Acta Biomater 2017; 52:159-170. [PMID: 27965173 DOI: 10.1016/j.actbio.2016.12.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 10/21/2016] [Accepted: 12/07/2016] [Indexed: 01/06/2023]
Abstract
In vitro cultured cells produce a complex extracellular matrix (ECM) that remains intact after decellularization. The biological complexity derived from the variety of distinct ECM molecules makes these matrices ideal candidates for biomaterials. Biomaterials with the ability to guide cell function are a topic of high interest in biomaterial development. However, these matrices lack specific addressable functional groups, which are often required for their use as a biomaterial. Due to the biological complexity of the cell-derived ECM, it is a challenge to incorporate such functional groups without affecting the integrity of the biomolecules within the ECM. The azide-alkyne cycloaddition (click reaction, Huisgen-reaction) is an efficient and specific ligation reaction that is known to be biocompatible when strained alkynes are used to avoid the use of copper (I) as a catalyst. In our work, the ubiquitous modification of a fibroblast cell-derived ECM with azides was achieved through metabolic oligosaccharide engineering by adding the azide-modified monosaccharide Ac4GalNAz (1,3,4,6-tetra-O-acetyl-N-azidoacetylgalactosamine) to the cell culture medium. The resulting azide-modified network remained intact after removing the cells by lysis and the molecular structure of the ECM proteins was unimpaired after a gentle homogenization process. The biological composition was characterized in order to show that the functionalization does not impair the complexity and integrity of the ECM. The azides within this "clickECM" could be accessed by small molecules (such as an alkyne-modified fluorophore) or by surface-bound cyclooctynes to achieve a covalent coating with clickECM. STATEMENT OF SIGNIFICANCE The clickECM was produced by the incorporation of azide-functionalized sugar analogues into the extracellular glycans of fibroblast cell cultures by metabolic oligosaccharide engineering. By introducing these azide groups into the glycan structures, we enabled this cell-derived ECM for bioorthogonal click reactions. Click chemistry provides extremely specific reactions with high efficiency, high selectivity, and high reaction yields. We could show that the azide functionalities within the clickECM are chemically accessible. Based on our here described clickECM technique it will be possible to create and investigate new clickECM materials with tunable bioactive properties and additional functionalities, which offers a promising approach for basic and applied research in the field of biomaterial science, biomedical applications, and tissue engineering.
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61
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Pícha J, Buděšínský M, Macháčková K, Collinsová M, Jiráček J. Optimized syntheses of Fmoc azido amino acids for the preparation of azidopeptides. J Pept Sci 2017; 23:202-214. [PMID: 28120383 PMCID: PMC5347871 DOI: 10.1002/psc.2968] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 12/20/2016] [Accepted: 12/20/2016] [Indexed: 12/17/2022]
Abstract
The rise of CuI‐catalyzed click chemistry has initiated an increased demand for azido and alkyne derivatives of amino acid as precursors for the synthesis of clicked peptides. However, the use of azido and alkyne amino acids in peptide chemistry is complicated by their high cost. For this reason, we investigated the possibility of the in‐house preparation of a set of five Fmoc azido amino acids: β‐azido l‐alanine and d‐alanine, γ‐azido l‐homoalanine, δ‐azido l‐ornithine and ω‐azido l‐lysine. We investigated several reaction pathways described in the literature, suggested several improvements and proposed several alternative routes for the synthesis of these compounds in high purity. Here, we demonstrate that multigram quantities of these Fmoc azido amino acids can be prepared within a week or two and at user‐friendly costs. We also incorporated these azido amino acids into several model tripeptides, and we observed the formation of a new elimination product of the azido moiety upon conditions of prolonged couplings with 2‐(1H‐benzotriazol‐1‐yl)‐1,1,3,3‐tetramethyluronium hexafluorophosphate/DIPEA. We hope that our detailed synthetic protocols will inspire some peptide chemists to prepare these Fmoc azido acids in their laboratories and will assist them in avoiding the too extensive costs of azidopeptide syntheses. Experimental procedures and/or analytical data for compounds 3–5, 20, 25, 26, 30 and 43–47 are provided in the supporting information. © 2017 The Authors Journal of Peptide Science published by European Peptide Society and John Wiley & Sons Ltd.
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Affiliation(s)
- Jan Pícha
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, v.v.i., Flemingovo nám. 2, 166 10, Prague 6, Czech Republic
| | - Miloš Buděšínský
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, v.v.i., Flemingovo nám. 2, 166 10, Prague 6, Czech Republic
| | - Kateřina Macháčková
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, v.v.i., Flemingovo nám. 2, 166 10, Prague 6, Czech Republic
| | - Michaela Collinsová
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, v.v.i., Flemingovo nám. 2, 166 10, Prague 6, Czech Republic
| | - Jiří Jiráček
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, v.v.i., Flemingovo nám. 2, 166 10, Prague 6, Czech Republic
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62
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Widen JC, Kempema AM, Villalta PW, Harki DA. Targeting NF-κB p65 with a Helenalin Inspired Bis-electrophile. ACS Chem Biol 2017; 12:102-113. [PMID: 28103680 DOI: 10.1021/acschembio.6b00751] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The canonical NF-κB signaling pathway is a mediator of the cellular inflammatory response and a target for developing therapeutics for multiple human diseases. The furthest downstream proteins in the pathway, the p50/p65 transcription factor heterodimer, have been recalcitrant toward small molecule inhibition despite the substantial number of compounds known to inhibit upstream proteins in the activation pathway. Given the roles of many of these upstream proteins in multiple biochemical pathways, targeting the p50/p65 heterodimer offers an opportunity for enhanced on-target specificity. Toward this end, the p65 protein presents two nondisulfide cysteines, Cys38 and Cys120, at its DNA-binding interface that are amenable to targeting by covalent molecules. The natural product helenalin, a sesquiterpene lactone, has been previously shown to target Cys38 on p65 and ablate its DNA-binding ability. Using helenalin as inspiration, simplified helenalin analogues were designed, synthesized, and shown to inhibit induced canonical NF-κB signaling in cell culture. Moreover, two simplified helenalin probes were proficient at forming covalent protein adducts, binding to Cys38 on recombinant p65, and targeting p65 in HeLa cells without engaging canonical NF-κB signaling proteins IκBα, p50, and IKKα/β. These studies further support that targeting the p65 transcription factor-DNA interface with covalent small molecule inhibitors is a viable approach toward regulating canonical NF-κB signaling.
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Affiliation(s)
- John C. Widen
- Department
of Medicinal Chemistry and ‡Masonic Cancer Center, University of Minnesota, 2231 Sixth Street SE, Minneapolis, Minnesota 55455, United States
| | - Aaron M. Kempema
- Department
of Medicinal Chemistry and ‡Masonic Cancer Center, University of Minnesota, 2231 Sixth Street SE, Minneapolis, Minnesota 55455, United States
| | - Peter W. Villalta
- Department
of Medicinal Chemistry and ‡Masonic Cancer Center, University of Minnesota, 2231 Sixth Street SE, Minneapolis, Minnesota 55455, United States
| | - Daniel A. Harki
- Department
of Medicinal Chemistry and ‡Masonic Cancer Center, University of Minnesota, 2231 Sixth Street SE, Minneapolis, Minnesota 55455, United States
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63
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Holstein JM, Muttach F, Schiefelbein SHH, Rentmeister A. Dual 5′ Cap Labeling Based on Regioselective RNA Methyltransferases and Bioorthogonal Reactions. Chemistry 2017; 23:6165-6173. [DOI: 10.1002/chem.201604816] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Josephin M. Holstein
- University of Muenster; Department of Chemistry; Institute of Biochemistry; Wilhelm-Klemm-Straße 2 48149 Muenster Germany
| | - Fabian Muttach
- University of Muenster; Department of Chemistry; Institute of Biochemistry; Wilhelm-Klemm-Straße 2 48149 Muenster Germany
| | - Stephan H. H. Schiefelbein
- University of Muenster; Department of Chemistry; Institute of Biochemistry; Wilhelm-Klemm-Straße 2 48149 Muenster Germany
| | - Andrea Rentmeister
- University of Muenster; Department of Chemistry; Institute of Biochemistry; Wilhelm-Klemm-Straße 2 48149 Muenster Germany
- Cells-in-Motion Cluster of Excellence (EXC 1003-CiM); University of Münster; Germany
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64
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Moldovan RP, Deuther-Conrad W, Horti AG, Brust P. Synthesis and Preliminary Biological Evaluation of Indol-3-yl-oxoacetamides as Potent Cannabinoid Receptor Type 2 Ligands. Molecules 2017; 22:molecules22010077. [PMID: 28054997 PMCID: PMC6155603 DOI: 10.3390/molecules22010077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 12/22/2016] [Accepted: 12/22/2016] [Indexed: 11/22/2022] Open
Abstract
A small series of indol-3-yl-oxoacetamides was synthesized starting from the literature known N-(adamantan-1-yl)-2-(5-(furan-2-yl)-1-pentyl-1H-indol-3-yl)-2-oxoacetamide (5) by substituting the 1-pentyl-1H-indole subunit. Our preliminary biological evaluation showed that the fluorinated derivative 8 is a potent and selective CB2 ligand with Ki = 6.2 nM.
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Affiliation(s)
- Rareş-Petru Moldovan
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Radiopharmaceutical Cancer Research, Permoserstr. 15, 04318 Leipzig, Germany.
| | - Winnie Deuther-Conrad
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Radiopharmaceutical Cancer Research, Permoserstr. 15, 04318 Leipzig, Germany.
| | - Andrew G Horti
- Johns Hopkins School of Medicine, Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Baltimore, MD 21287, USA.
| | - Peter Brust
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Radiopharmaceutical Cancer Research, Permoserstr. 15, 04318 Leipzig, Germany.
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65
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Zhang H, Zhang Y, Li J, Wang M, Tanimoto H, Morimoto T, Kakiuchi K. Synthesis of Fused 1,2,3-Triazoles through Carbocation-Mediated Intramolecular [3+2] Cycloaddition of Azido-propargyl Alcohols. HETEROCYCLES 2017. [DOI: 10.3987/com-17-13763] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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66
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Shie JJ, Liu YC, Hsiao JC, Fang JM, Wong CH. A cell-permeable and triazole-forming fluorescent probe for glycoconjugate imaging in live cells. Chem Commun (Camb) 2017; 53:1490-1493. [DOI: 10.1039/c6cc08805h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A new fluorescence-forming probe, coumOCT, designed by fusing cyclooctyne with a coumarin fluorophore was successfully used for the imaging of azido-glycoconjugates in living HeLa cells.
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Affiliation(s)
| | - Ying-Chih Liu
- Genomics Research Center
- Academia Sinica
- Nankang
- Taiwan
| | | | - Jim-Min Fang
- Genomics Research Center
- Academia Sinica
- Nankang
- Taiwan
- Department of Chemistry
| | - Chi-Huey Wong
- Genomics Research Center
- Academia Sinica
- Nankang
- Taiwan
- Department of Chemistry
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67
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Ho YH, Ho SY, Hsu CC, Shie JJ, Wang TSA. Utilizing an iron(iii)-chelation masking strategy to prepare mono- and bis-functionalized aerobactin analogues for targeting pathogenic bacteria. Chem Commun (Camb) 2017; 53:9265-9268. [DOI: 10.1039/c7cc05197b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a facile functionalization of native siderophoresviaan Fe(iii)-chelation masking strategy to prepare fluorophore conjugates for targeting pathogenic bacteria.
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Affiliation(s)
- Yu-Hin Ho
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Sheng-Yang Ho
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Cheng-Chih Hsu
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Jiun-Jie Shie
- Institute of Chemistry
- Academia Sinica
- Taipei 11529
- Taiwan
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68
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Sutton DA, Popik VV. Sequential Photochemistry of Dibenzo[a,e]dicyclopropa[c,g][8]annulene-1,6-dione: Selective Formation of Didehydrodibenzo[a,e][8]annulenes with Ultrafast SPAAC Reactivity. J Org Chem 2016; 81:8850-8857. [PMID: 27635662 PMCID: PMC5999039 DOI: 10.1021/acs.joc.6b01545] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An order of magnitude difference in photoreactivity between bis- (photo-DIBOD, 1) and mono-cyclopropenone-caged dibenzocyclooctadiynes (MC-DIBOD, 5) allows for selective monodecarbonylation of 1. Alternatively, 5 is prepared by selective mono-cyclopropanation of dibenzo[a,e]cyclooctadiyne (DIBOD). MC-DIBOD (5) permits efficient sequential SPAAC cross-linking of azide-derivatized substrates. Cycloaddition to 5 converts an azide moiety into a photocaged form of triazole-fused dibenzo[a,e]cyclooctyne (3). While the azide reactivity of MC-DIBOD (5) and DIBOD is similar to that of other dibenzocyclooctynes, fusion of triazole to the dibenzocyclooctyne system in 3 results in a 3 orders of magnitude enhancement in SPAAC rates. In methanol, 3 reacts with butyl azide at an astonishing rate of 34 M-1 s-1, thus representing the most reactive cyclooctyne analogue reported so far. MC-DIBOD (5) was utilized in the preparation of mixed bis-triazoles and derivatization of the protein BSA with fluorescent dye and polyethylene glycol.
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Affiliation(s)
- Dewey A. Sutton
- Department of Chemistry, University of Georgia, Athens, GA 30602
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69
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Shang X, Song X, Faller C, Lai R, Li H, Cerny R, Niu W, Guo J. Fluorogenic protein labeling using a genetically encoded unstrained alkene. Chem Sci 2016; 8:1141-1145. [PMID: 28451254 PMCID: PMC5369545 DOI: 10.1039/c6sc03635j] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Accepted: 09/23/2016] [Indexed: 12/26/2022] Open
Abstract
A new fluorogenic bioorthogonal reaction between styrene (an unstrained alkene) and a tetrazine was developed.
We developed a new fluorogenic bioorthogonal reaction that is based on the inverse electron-demand Diels–Alder reaction between styrene (an unstrained alkene) and a simple tetrazine. The reaction forms a new fluorophore with no literature precedent. We have identified an aminoacyl-tRNA synthetase/tRNA pair for the efficient and site-specific incorporation of a styrene-containing amino acid into proteins in response to amber nonsense codon. Fluorogenic labeling of purified proteins and intact proteins in live cells were demonstrated. The fluorogenicity of the styrene–tetrazine reaction can be potentially applied to the study of protein folding and function under physiological conditions with low background fluorescence interference.
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Affiliation(s)
- X Shang
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , NE 68588 , USA .
| | - X Song
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , NE 68588 , USA .
| | - C Faller
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , NE 68588 , USA .
| | - R Lai
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , NE 68588 , USA .
| | - H Li
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , NE 68588 , USA .
| | - R Cerny
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , NE 68588 , USA .
| | - W Niu
- Department of Chemical & Biomolecular Engineering , University of Nebraska-Lincoln , Lincoln , NE 68588 , USA .
| | - J Guo
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , NE 68588 , USA .
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70
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Moldovan RP, Teodoro R, Gao Y, Deuther-Conrad W, Kranz M, Wang Y, Kuwabara H, Nakano M, Valentine H, Fischer S, Pomper MG, Wong DF, Dannals RF, Brust P, Horti AG. Development of a High-Affinity PET Radioligand for Imaging Cannabinoid Subtype 2 Receptor. J Med Chem 2016; 59:7840-55. [PMID: 27500461 DOI: 10.1021/acs.jmedchem.6b00554] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Cannabinoid receptors type 2 (CB2) represent a target with increasing importance for neuroimaging due to its upregulation under various pathological conditions. Encouraged by preliminary results obtained with [(11)C](Z)-N-(3-(2-methoxyethyl)-4,5-dimethylthiazol-2(3H)-ylidene)-2,2,3,3-tetramethyl-cyclopropanecarboxamide ([(11)C]A-836339, [(11)C]1) in a mouse model of acute neuroinflammation (induced by lipopolysaccharide, LPS), we designed a library of fluorinated analogues aiming for an [(18)F]-labeled radiotracer with improved CB2 binding affinity and selectivity. Compound (Z)-N-(3-(4-fluorobutyl)-4,5-dimethylthiazol-2(3H)-ylidene)-2,2,3,3-tetramethyl-cyclopropanecarboxamide (29) was selected as the ligand with the highest CB2 affinity (Ki = 0.39 nM) and selectivity over those of CB1 (factor of 1000). [(18)F]29 was prepared starting from the bromo precursor (53). Specific binding was shown in vitro, whereas fast metabolism was observed in vivo in CD-1 mice. Animal PET revealed a brain uptake comparable to that of [(11)C]1. In the LPS-treated mice, a 20-30% higher uptake in brain was found in comparison to that in nontreated mice (n = 3, P < 0.05).
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Affiliation(s)
- Rareş-Petru Moldovan
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Radiopharmaceutical Cancer Research , Leipzig, Germany
| | - Rodrigo Teodoro
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Radiopharmaceutical Cancer Research , Leipzig, Germany
| | - Yongjun Gao
- Johns Hopkins School of Medicine , Department of Radiology, Baltimore, 21287 United States
| | - Winnie Deuther-Conrad
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Radiopharmaceutical Cancer Research , Leipzig, Germany
| | - Mathias Kranz
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Radiopharmaceutical Cancer Research , Leipzig, Germany
| | - Yuchuan Wang
- Johns Hopkins School of Medicine , Department of Radiology, Baltimore, 21287 United States
| | - Hiroto Kuwabara
- Johns Hopkins School of Medicine , Department of Radiology, Baltimore, 21287 United States
| | - Masayoshi Nakano
- Johns Hopkins School of Medicine , Department of Radiology, Baltimore, 21287 United States
| | - Heather Valentine
- Johns Hopkins School of Medicine , Department of Radiology, Baltimore, 21287 United States
| | - Steffen Fischer
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Radiopharmaceutical Cancer Research , Leipzig, Germany
| | - Martin G Pomper
- Johns Hopkins School of Medicine , Department of Radiology, Baltimore, 21287 United States
| | - Dean F Wong
- Johns Hopkins School of Medicine , Department of Radiology, Baltimore, 21287 United States
| | - Robert F Dannals
- Johns Hopkins School of Medicine , Department of Radiology, Baltimore, 21287 United States
| | - Peter Brust
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Radiopharmaceutical Cancer Research , Leipzig, Germany
| | - Andrew G Horti
- Johns Hopkins School of Medicine , Department of Radiology, Baltimore, 21287 United States
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71
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Ohata J, Vohidov F, Ball ZT. Convenient analysis of protein modification by chemical blotting with fluorogenic "click" reagents. MOLECULAR BIOSYSTEMS 2016; 11:2846-9. [PMID: 26325302 DOI: 10.1039/c5mb00510h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Direct visualization of bioorthogonal alkyne or azide handles using fluorogenic azide-alkyne cycloaddition conducted on the surface of a blot membrane. The method eliminates the need for separation steps to remove excess small molecule reagents before attachment of antigen molecules or other visualization handles, and is especially useful for the analysis of peptides and small proteins. A variety of potential fluorogenic reagents are assessed, and sensitivity (<0.1 picomole) similar to current commercially available fluorescence imaging methods is possible.
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Affiliation(s)
- Jun Ohata
- Department of Chemistry, Rice University, MS 60, 6100 Main Street Houston, Texas 77005, USA.
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72
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Wang K, Friscourt F, Dai C, Wang L, Zheng Y, Boons GJ, Wang S, Wang B. A metal-free turn-on fluorescent probe for the fast and sensitive detection of inorganic azides. Bioorg Med Chem Lett 2016; 26:1651-4. [PMID: 26944613 PMCID: PMC4797929 DOI: 10.1016/j.bmcl.2016.02.069] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/19/2016] [Accepted: 02/22/2016] [Indexed: 11/23/2022]
Abstract
Sodium azide is toxic and widely used in agricultural, commercial products, and research laboratories. Thus it is of a significant environmental concern and there is a need for the development of a rapid detection method. A fluorogenic dibenzylcyclooctyne derivative (Fl-DIBO) is herein described as a fluorescent probe for the rapid detection of inorganic azide via Strain-Promoted Azide-Alkyne Cycloaddition (SPAAC). Fl-DIBO was found to be highly selective toward NaN3 in comparison to other common anions with good sensitivity and detection limit of 10μM.
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Affiliation(s)
- Ke Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302-3965, USA
| | - Frédéric Friscourt
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, USA
| | - Chaofeng Dai
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302-3965, USA
| | - Lifang Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302-3965, USA
| | - Yueqin Zheng
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302-3965, USA
| | - Geert-Jan Boons
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, USA
| | - Siming Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302-3965, USA
| | - Binghe Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302-3965, USA.
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73
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Sun L, Fu H, Li Y, Duan X, Li Z. Rapid Recognition and Isolation of Live Colon Cancer Stem Cells by Using Metabolic Labeling of Azido Sugar and Magnetic Beads. Anal Chem 2016; 88:3953-8. [PMID: 26937691 DOI: 10.1021/acs.analchem.6b00154] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
New approach for colon cancer stem cells (CSCs) recognition and isolation is reported. Colon CSCs are responsible for colonic tumor growth, metastasis, and resistance for radio-/chemotherapies. An accurate identification and isolation method is critical for understanding and characterization of these cells. In our work, we recognized CSCs' population from colon cancer cells by using metabolic labeling of azido sugar based on the quiescent nature of these cells, which differed fundamentally from previously described methods by using specific cellular markers to recognize and isolate CSCs. Later the putative CSCs were isolated by using commercially available magnetic beads. The isolated cells population had much higher sphere formation efficiency, soft-agar colony formation efficiency, and an mRNA level of colon stem cells marker Lgr5 than the leftover population. Our method provides a new avenue and a general strategy for recognition and isolation of CSCs, which shows great potential for further use in both the fundamental research of CSCs and clinical tests.
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Affiliation(s)
- Lingbo Sun
- Key laboratory of Applied Surface and Colloid Chemistry Ministry of Education, Key laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University , 620 Xi Chang'an Street, Xi'an, Shaanxi 710119, People's Republic of China
| | - Hongxia Fu
- Key laboratory of Applied Surface and Colloid Chemistry Ministry of Education, Key laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University , 620 Xi Chang'an Street, Xi'an, Shaanxi 710119, People's Republic of China
| | - Yanru Li
- Key laboratory of Applied Surface and Colloid Chemistry Ministry of Education, Key laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University , 620 Xi Chang'an Street, Xi'an, Shaanxi 710119, People's Republic of China
| | - Xinrui Duan
- Key laboratory of Applied Surface and Colloid Chemistry Ministry of Education, Key laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University , 620 Xi Chang'an Street, Xi'an, Shaanxi 710119, People's Republic of China
| | - Zhengping Li
- Key laboratory of Applied Surface and Colloid Chemistry Ministry of Education, Key laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University , 620 Xi Chang'an Street, Xi'an, Shaanxi 710119, People's Republic of China
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74
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Sutton DA, Yu SH, Steet R, Popik VV. Cyclopropenone-caged Sondheimer diyne (dibenzo[a,e]cyclooctadiyne): a photoactivatable linchpin for efficient SPAAC crosslinking. Chem Commun (Camb) 2016; 52:553-6. [PMID: 26538499 PMCID: PMC4689622 DOI: 10.1039/c5cc08106h] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The first fully conjugated bis-cyclopropenone (photo-DIBOD), a derivative of dibenzo[a,e][8]annulene, has been synthesized. 350-420 nm irradiation of this robust compound results in the efficient formation of dibenzo [a,e] cyclooctadiyne, an unstable, but useful SPAAC cross-linking reagent. Since photo-DIBO doesn't react with organic azides, this method allows for the spatiotemporal control of the ligation of two azide-tagged substrates.
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Affiliation(s)
- Dewey A Sutton
- Department of Chemistry, University of Georgia, Athens, GA 30602, USA.
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75
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Affiliation(s)
- Suguru Yoshida
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
| | - Isao Kii
- RIKEN Center for Life Science Technologies
| | - Takamitsu Hosoya
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
- RIKEN Center for Life Science Technologies
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76
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Barzegar Amiri Olia M, Zavras A, Schiesser CH, Alexander SA. Blue ‘turn-on’ fluorescent probes for the direct detection of free radicals and nitric oxide in Pseudomonas aeruginosa biofilms. Org Biomol Chem 2016; 14:2272-81. [DOI: 10.1039/c5ob02441b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Novel blue cell-permeable ‘turn-on’ fluorescent probes have been developed to visualize and quantify nitric oxide and free radical formation and reaction within aPseudomonas aeruginosabiofilm.
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Affiliation(s)
- Mina Barzegar Amiri Olia
- ARC Centre of Excellence for Free Radical Chemistry and Biotechnology
- Australia
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute
- The University of Melbourne
- Victoria
| | - Athanasios Zavras
- ARC Centre of Excellence for Free Radical Chemistry and Biotechnology
- Australia
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute
- The University of Melbourne
- Victoria
| | - Carl H. Schiesser
- ARC Centre of Excellence for Free Radical Chemistry and Biotechnology
- Australia
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute
- The University of Melbourne
- Victoria
| | - Stefanie-Ann Alexander
- ARC Centre of Excellence for Free Radical Chemistry and Biotechnology
- Australia
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute
- The University of Melbourne
- Victoria
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77
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Lee LCC, Lau JCW, Liu HW, Lo KKW. Conferring Phosphorogenic Properties on Iridium(III)-Based Bioorthogonal Probes through Modification with a Nitrone Unit. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509396] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Lawrence Cho-Cheung Lee
- Department of Biology and Chemistry; City University of Hong Kong; Tat Chee Avenue, Kowloon Hong Kong P.R. China
| | - Jonathan Chun-Wai Lau
- Department of Biology and Chemistry; City University of Hong Kong; Tat Chee Avenue, Kowloon Hong Kong P.R. China
| | - Hua-Wei Liu
- Department of Biology and Chemistry; City University of Hong Kong; Tat Chee Avenue, Kowloon Hong Kong P.R. China
| | - Kenneth Kam-Wing Lo
- Department of Biology and Chemistry; City University of Hong Kong; Tat Chee Avenue, Kowloon Hong Kong P.R. China
- State Key Laboratory of Millimeter Waves; City University of Hong Kong; Tat Chee Avenue, Kowloon Hong Kong (P.R. China
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78
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Lee LCC, Lau JCW, Liu HW, Lo KKW. Conferring Phosphorogenic Properties on Iridium(III)-Based Bioorthogonal Probes through Modification with a Nitrone Unit. Angew Chem Int Ed Engl 2015; 55:1046-9. [DOI: 10.1002/anie.201509396] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Indexed: 12/25/2022]
Affiliation(s)
- Lawrence Cho-Cheung Lee
- Department of Biology and Chemistry; City University of Hong Kong; Tat Chee Avenue, Kowloon Hong Kong P.R. China
| | - Jonathan Chun-Wai Lau
- Department of Biology and Chemistry; City University of Hong Kong; Tat Chee Avenue, Kowloon Hong Kong P.R. China
| | - Hua-Wei Liu
- Department of Biology and Chemistry; City University of Hong Kong; Tat Chee Avenue, Kowloon Hong Kong P.R. China
| | - Kenneth Kam-Wing Lo
- Department of Biology and Chemistry; City University of Hong Kong; Tat Chee Avenue, Kowloon Hong Kong P.R. China
- State Key Laboratory of Millimeter Waves; City University of Hong Kong; Tat Chee Avenue, Kowloon Hong Kong (P.R. China
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79
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Fu H, Li Y, Sun L, He P, Duan X. Ratiometric Fluorescence Azide–Alkyne Cycloaddition for Live Mammalian Cell Imaging. Anal Chem 2015; 87:11332-6. [DOI: 10.1021/acs.analchem.5b02612] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Hongxia Fu
- Key
Laboratory of Analytical Chemistry for Life Science of Shaanxi
Province and ‡Experimental Chemistry Teaching Center, School of Chemistry and Chemical
Engineering, Shaanxi Normal University, 620 Xi Chang’an Street, Xi’an, Shaanxi 710119, People’s Republic of China
| | - Yanru Li
- Key
Laboratory of Analytical Chemistry for Life Science of Shaanxi
Province and ‡Experimental Chemistry Teaching Center, School of Chemistry and Chemical
Engineering, Shaanxi Normal University, 620 Xi Chang’an Street, Xi’an, Shaanxi 710119, People’s Republic of China
| | - Lingbo Sun
- Key
Laboratory of Analytical Chemistry for Life Science of Shaanxi
Province and ‡Experimental Chemistry Teaching Center, School of Chemistry and Chemical
Engineering, Shaanxi Normal University, 620 Xi Chang’an Street, Xi’an, Shaanxi 710119, People’s Republic of China
| | - Pan He
- Key
Laboratory of Analytical Chemistry for Life Science of Shaanxi
Province and ‡Experimental Chemistry Teaching Center, School of Chemistry and Chemical
Engineering, Shaanxi Normal University, 620 Xi Chang’an Street, Xi’an, Shaanxi 710119, People’s Republic of China
| | - Xinrui Duan
- Key
Laboratory of Analytical Chemistry for Life Science of Shaanxi
Province and ‡Experimental Chemistry Teaching Center, School of Chemistry and Chemical
Engineering, Shaanxi Normal University, 620 Xi Chang’an Street, Xi’an, Shaanxi 710119, People’s Republic of China
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80
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Krishna J, Krishna Reddy AG, Satyanarayana G. Palladium-Catalyzed Domino Process: Synthesis of Symmetrical Diarylalkynes,cis- andtrans-Alkenes using Lithium Acetylide as a Synthon. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500686] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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81
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Ohata J, Vohidov F, Aliyan A, Huang K, Martí AA, Ball ZT. Luminogenic iridium azide complexes. Chem Commun (Camb) 2015; 51:15192-5. [PMID: 26325066 PMCID: PMC4591250 DOI: 10.1039/c5cc06099k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and characterization of luminogenic, bioorthogonal iridium probes is described. These probes exhibit long photoluminescence lifetimes amenable to time-resolved applications. A simple, modular synthesis via 5-azidophenanthroline allows structural variation and allows optimization of cell labeling.
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Affiliation(s)
- Jun Ohata
- Department of Chemistry, Rice University, Houston, Texas 77005, USA.
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82
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Kampmann SS, Skelton BW, Yeoh GC, Abraham LJ, Lengkeek NA, Stubbs KA, Heath CH, Stewart SG. The synthesis and fluorescence profile of novel thalidomide analogues. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.08.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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83
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Cserép GB, Herner A, Kele P. Bioorthogonal fluorescent labels: a review on combined forces. Methods Appl Fluoresc 2015; 3:042001. [DOI: 10.1088/2050-6120/3/4/042001] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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84
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Hormann J, van der Meer M, Sarkar B, Kulak N. From Cyclen to 12-Crown-4 Copper(II) Complexes: Exchange of Donor Atoms Improves DNA Cleavage Activity. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500596] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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85
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Friscourt F, Fahrni CJ, Boons GJ. Fluorogenic Strain-Promoted Alkyne-Diazo Cycloadditions. Chemistry 2015; 21:13996-4001. [PMID: 26330090 DOI: 10.1002/chem.201502242] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Indexed: 01/04/2023]
Abstract
Fluorogenic reactions, in which non- or weakly fluorescent reagents produce highly fluorescent products, are attractive for detecting a broad range of compounds in the fields of bioconjugation and material sciences. Herein, we report that a dibenzocyclooctyne derivative modified with a cyclopropenone moiety (Fl-DIBO) can undergo fast strain-promoted cycloaddition reactions under catalyst-free conditions with azides, nitrones, nitrile oxides, as well as mono- and disubstituted diazo-derivatives. Although the reaction with nitrile oxides, nitrones, and disubstituted diazo compounds gave cycloadducts with low quantum yield, monosubstituted diazo reagents produced 1H-pyrazole derivatives that exhibited an approximately 160-fold fluorescence enhancement over Fl-DIBO combined with a greater than 10,000-fold increase in brightness. Concluding from quantum chemical calculations, fluorescence quenching of 3H-pyrazoles, which are formed by reaction with disubstituted diazo-derivatives, is likely due to the presence of energetically low-lying (n,π*) states. The fluorogenic probe Fl-DIBO was successfully employed for the labeling of diazo-tagged proteins without detectable background signal. Diazo-derivatives are emerging as attractive reporters for the labeling of biomolecules, and the studies presented herein demonstrate that Fl-DIBO can be employed for visualizing such biomolecules without the need for probe washout.
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Affiliation(s)
- Frédéric Friscourt
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602 (USA), Fax: (+1) 706-542-4412.,Present address: Institut Européen de Chimie et Biologie, Université de Bordeaux, INCIA, CNRS UMR 5287, 2 rue Robert Escarpit, 33607 Pessac (France)
| | - Christoph J Fahrni
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA 30332 (USA)
| | - Geert-Jan Boons
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602 (USA), Fax: (+1) 706-542-4412.
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86
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Debets MF, Prins JS, Merkx D, van Berkel SS, van Delft FL, van Hest JCM, Rutjes FPJT. Synthesis of DIBAC analogues with excellent SPAAC rate constants. Org Biomol Chem 2015; 12:5031-7. [PMID: 24899166 DOI: 10.1039/c4ob00694a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In search for increased reactivity in strain-promoted azide alkyne cycloadditions (SPAAC), the synthesis of new and more reactive cyclooctynes is of pivotal importance. To identify cyclooctynes with enhanced reactivity, without loss of stability, the synthesis and kinetic analysis of new dibenzoazacyclooctyne (DIBAC) analogues were conducted. Starting from iodobenzyl alcohol analogues and ortho-ethynylaniline various substituted dihydrodibenzo[b,f]azocines were produced. Subsequent bromination and elimination proved to be difficult depending on the aromatic substitution pattern, yielding chloro-, bromo-, and methoxy-substituted DIBACs in moderate yield. In the elimination reaction towards nitro- and Br,Cl-DIBAC, the corresponding cyclooctene was obtained instead of the cyclooctyne. Additionally, a dimethoxy-substituted DIBAC analogue was prepared following an alternative route involving light-induced deprotection of a cyclopropenone derivative. In total, four DIBAC analogues were successfully prepared showing excellent rate constants in the SPAAC reaction ranging from 0.45 to 0.9 M(-1) s(-1), which makes them comparable to the fastest cyclooctynes currently known.
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Affiliation(s)
- Marjoke F Debets
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
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87
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Abstract
Bioorthogonal chemistry has enabled the selective labeling and detection of biomolecules in living systems. Bioorthogonal smart probes, which become fluorescent or deliver imaging or therapeutic agents upon reaction, allow for the visualization of biomolecules or targeted delivery even in the presence of excess unreacted probe. This review discusses the strategies used in the development of bioorthogonal smart probes and highlights the potential of these probes to further our understanding of biology.
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Affiliation(s)
- Peyton Shieh
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Carolyn R. Bertozzi
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, United States
- Howard Hughes Medical Institute, University of California, Berkeley, California 94720, United States
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88
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Novel fluorinated lipopeptides from Bacillus sp. CS93 via precursor-directed biosynthesis. Amino Acids 2014; 46:2745-52. [DOI: 10.1007/s00726-014-1830-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 08/21/2014] [Indexed: 10/24/2022]
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89
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Pramanik S, Ghorai P. Trapping of Azidocarbenium Ion: A Unique Route for Azide Synthesis. Org Lett 2014; 16:2104-7. [DOI: 10.1021/ol5008235] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Suman Pramanik
- Department
of Chemistry, Indian Institute of Science Education and Research Bhopal, Indore By-pass
Road, Bhauri, Bhopal 462066, India
| | - Prasanta Ghorai
- Department
of Chemistry, Indian Institute of Science Education and Research Bhopal, Indore By-pass
Road, Bhauri, Bhopal 462066, India
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90
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Imaging bacterial peptidoglycan with near-infrared fluorogenic azide probes. Proc Natl Acad Sci U S A 2014; 111:5456-61. [PMID: 24706769 DOI: 10.1073/pnas.1322727111] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Fluorescent probes designed for activation by bioorthogonal chemistry have enabled the visualization of biomolecules in living systems. Such activatable probes with near-infrared (NIR) emission would be ideal for in vivo imaging but have proven difficult to engineer. We present the development of NIR fluorogenic azide probes based on the Si-rhodamine scaffold that undergo a fluorescence enhancement of up to 48-fold upon reaction with terminal or strained alkynes. We used the probes for mammalian cell surface imaging and, in conjunction with a new class of cyclooctyne D-amino acids, for visualization of bacterial peptidoglycan without the need to wash away unreacted probe.
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91
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Patterson DM, Nazarova LA, Prescher JA. Finding the right (bioorthogonal) chemistry. ACS Chem Biol 2014; 9:592-605. [PMID: 24437719 DOI: 10.1021/cb400828a] [Citation(s) in RCA: 530] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Bioorthogonal chemistries can be used to tag diverse classes of biomolecules in cells and other complex environments. With over 20 unique transformations now available, though, selecting an appropriate reaction for a given experiment is challenging. In this article, we compare and contrast the most common classes of bioorthogonal chemistries and provide a framework for matching the reactions with downstream applications. We also discuss ongoing efforts to identify novel biocompatible reactions and methods to control their reactivity. The continued expansion of the bioorthogonal toolkit will provide new insights into biomolecule networks and functions and thus refine our understanding of living systems.
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Affiliation(s)
- David M. Patterson
- Departments of †Chemistry, ‡Molecular Biology & Biochemistry, and §Pharmaceutical Sciences, University of California, Irvine, California 92697, United States
| | - Lidia A. Nazarova
- Departments of †Chemistry, ‡Molecular Biology & Biochemistry, and §Pharmaceutical Sciences, University of California, Irvine, California 92697, United States
| | - Jennifer A. Prescher
- Departments of †Chemistry, ‡Molecular Biology & Biochemistry, and §Pharmaceutical Sciences, University of California, Irvine, California 92697, United States
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92
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Kotoku N, Nakata C, Kawachi T, Sato T, Guo XH, Ito A, Sumii Y, Arai M, Kobayashi M. Synthesis and evaluation of effective photoaffinity probe molecule of furospinosulin-1, a hypoxia-selective growth inhibitor. Bioorg Med Chem 2014; 22:2102-12. [PMID: 24631363 DOI: 10.1016/j.bmc.2014.02.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 02/15/2014] [Accepted: 02/18/2014] [Indexed: 12/12/2022]
Abstract
The synthesis and evaluation of a photoaffinity probe molecule for furospinosulin-1, a hypoxia-selective growth inhibitor that we identified from marine sponge, was studied. An analogue carrying an alkyne tail showed potent hypoxia-selective inhibitory activity exceeding that of the parent molecule, and exhibited in vivo anti-tumor activity following oral administration. The alkyne moiety in the analogue was also found to be a good anchoring group for the preparation of probe molecules; a photoaffinity probe molecule having an optimized spacer length was selected through the systematic synthesis of several probes and the evaluation of their hypoxia-selective growth inhibitory activity and electrophoretic mobility shift properties.
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Affiliation(s)
- Naoyuki Kotoku
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan.
| | - Chiaki Nakata
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Takashi Kawachi
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Takanori Sato
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Xiu-Han Guo
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Aoi Ito
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Yuji Sumii
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Masayoshi Arai
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Motomasa Kobayashi
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan.
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93
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Fluorogenic aldehydes bearing arylethynyl groups: turn-on aldol reaction sensors for evaluation of organocatalysis in DMSO. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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94
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Jung D, Maiti S, Lee JH, Lee JH, Kim JS. Rational design of biotin–disulfide–coumarin conjugates: a cancer targeted thiol probe and bioimaging. Chem Commun (Camb) 2014; 50:3044-7. [DOI: 10.1039/c3cc49790a] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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95
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Wang CY, Zou JF, Zheng ZJ, Huang WS, Li L, Xu LW. BINOL-linked 1,2,3-triazoles: an unexpected fluorescent sensor with anion–π interaction for iodide ions. RSC Adv 2014. [DOI: 10.1039/c4ra09589h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
BINOL-derived triazoles could be used in organocatalytic silylation and unexpectedly as fluorescent sensors for the recognition of I−.
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Affiliation(s)
- Cai-Yun Wang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310012, P. R. China
| | - Jin-Feng Zou
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310012, P. R. China
| | - Zhan-Jiang Zheng
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310012, P. R. China
| | - Wei-Sheng Huang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310012, P. R. China
| | - Li Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310012, P. R. China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310012, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
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96
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Wang XX, Tao T, Geng J, Ma BB, Peng YX, Huang W. Dipyrido[3,2-a:2′,3′-c]phenazine-Based Donor-Acceptor Aromatic Heterocyclic Compounds with Thienyl and Triphenylamino Chromophores at the 2,7- and/or 10,13-Positions. Chem Asian J 2013; 9:514-25. [DOI: 10.1002/asia.201301284] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Indexed: 01/15/2023]
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97
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Ledin PA, Kolishetti N, Boons GJ. Multi-Functionalization of Polymers by Strain-Promoted Cycloadditions. Macromolecules 2013; 46:7759-7768. [PMID: 24511157 PMCID: PMC3916133 DOI: 10.1021/ma400913a] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We report here a synthetic route to oxime, azide and nitrone-bearing copolymers via reversible addition-fragmentation chain transfer copolymerization of 4-vinylbenzaldehyde and 1-(chloromethyl)-4-vinylbenzene with styrene. The azide and nitrone moieties could be employed in strain-promoted 1,3-dipolar cycloadditions with various functionalized dibenzocyclooctynols (DIBO) for metal-free post-functionalization of the polymers. In situ oxidation of the oximes with hypervalent iodine gave nitrile oxides, which could also be employed as 1,3-dipoles for facile cycloadditions with DIBO derivatives. Kinetic measurements demonstrated that the pendant nitrile oxides reacted approximately twenty times faster compared to similar cycloadditions with azides. A block copolymer, containing azide and oxime groups in segregated blocks, served as a scaffold for attachment of hydrophobic and hydrophilic moieties by sequential strain-promoted alkyne-azide and strain-promoted alkyne-nitrile oxide cycloadditions. This sequential bi-functionalization approach made it possible to prepare in a controlled manner multi-functional polymers that could self-assemble into well-defined nanostructures.
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Affiliation(s)
- Petr A. Ledin
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA, 30602
| | - Nagesh Kolishetti
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA, 30602
| | - Geert-Jan Boons
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA, 30602
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98
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Zhang H, Tanimoto H, Morimoto T, Nishiyama Y, Kakiuchi K. Regioselective Rapid Synthesis of Fully Substituted 1,2,3-Triazoles Mediated by Propargyl Cations. Org Lett 2013; 15:5222-5. [DOI: 10.1021/ol402387w] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Huan Zhang
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Hiroki Tanimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Tsumoru Morimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Yasuhiro Nishiyama
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
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99
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Fluorogenic probes for chemical transformations: 9-anthracene derivatives for monitoring reaction progress by an increase in fluorescence. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.06.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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100
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Sączewski J, Hinc K, Obuchowski M, Gdaniec M. The Tandem Mannich-Electrophilic Amination Reaction: a Versatile Platform for Fluorescent Probing and Labeling. Chemistry 2013; 19:11531-5. [DOI: 10.1002/chem.201302085] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Indexed: 01/08/2023]
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