151
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Fedorov OV, Kosobokov MD, Levin VV, Struchkova MI, Dilman AD. Halogenative difluorohomologation of ketones. J Org Chem 2015; 80:5870-6. [PMID: 25965426 DOI: 10.1021/acs.joc.5b00904] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A method for the difluorohomologation of ketones accompanied by halogenation of a C-H bond is described. The reaction involves silylation, difluorocarbene addition using Me3SiCF2Br activated by a bromide ion, and halogenation of intermediate cyclopropanes with N-bromo- or N-iodosuccinimide. The whole process is performed without isolation of intermediates. The resulting α,α-difluoro-β-halo-substituted ketones can be readily converted into fluorine containing pyrazole derivatives and oxetanes.
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Affiliation(s)
- Oleg V Fedorov
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Mikhail D Kosobokov
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Marina I Struchkova
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
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152
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DeForest CA, Tirrell DA. A photoreversible protein-patterning approach for guiding stem cell fate in three-dimensional gels. NATURE MATERIALS 2015; 14:523-31. [PMID: 25707020 DOI: 10.1038/nmat4219] [Citation(s) in RCA: 310] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 01/15/2015] [Indexed: 05/25/2023]
Abstract
Although biochemically patterned hydrogels are capable of recapitulating many critical aspects of the heterogeneous cellular niche, exercising spatial and temporal control of the presentation and removal of biomolecular signalling cues in such systems has proved difficult. Here, we demonstrate a synthetic strategy that exploits two bioorthogonal photochemistries to achieve reversible immobilization of bioactive full-length proteins with good spatial and temporal control within synthetic, cell-laden biomimetic scaffolds. A photodeprotection-oxime-ligation sequence permits user-defined quantities of proteins to be anchored within distinct subvolumes of a three-dimensional matrix, and an ortho-nitrobenzyl ester photoscission reaction facilitates subsequent protein removal. By using this approach to pattern the presentation of the extracellular matrix protein vitronectin, we accomplished reversible differentiation of human mesenchymal stem cells to osteoblasts in a spatially defined manner. Our protein-patterning approach should provide further avenues to probe and direct changes in cell physiology in response to dynamic biochemical signalling.
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Affiliation(s)
- Cole A DeForest
- 1] Division of Chemistry and Chemical Engineering California Institute of Technology, 1200 East California Boulevard Pasadena, California 91125, USA [2] Department of Chemical Engineering, University of Washington, 4000 15th Avenue NE Seattle, Washington 98195, USA
| | - David A Tirrell
- Division of Chemistry and Chemical Engineering California Institute of Technology, 1200 East California Boulevard Pasadena, California 91125, USA
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153
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Wang D, Chen W, Zheng Y, Dai C, Wang K, Ke B, Wang B. 3,6-Substituted-1,2,4,5-tetrazines: tuning reaction rates for staged labeling applications. Org Biomol Chem 2015; 12:3950-5. [PMID: 24806890 DOI: 10.1039/c4ob00280f] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Cycloaddition reactions involving tetrazines have proven to be powerful bioorthogonal tools for various applications. Conceivably, sequential and selective labeling using tetrazine-based reactions can be achieved by tuning the reaction rate. By varying the substituents on tetrazines, cycloaddition rate variations of over 200 fold have been achieved with the same dienophile. Upon coupling with different dienophiles, such as norbornene, the reaction rate difference can be over 14,000 fold. These substituted tetrazines can be very useful for selective labeling under different conditions.
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Affiliation(s)
- Danzhu Wang
- Department of Chemistry, Center for Diagnostics and Therapeutics, and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30303, USA.
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154
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Hörner A, Hagendorn T, Schepers U, Bräse S. Photophysical properties and synthesis of new dye-cyclooctyne conjugates for multicolor and advanced microscopy. Bioconjug Chem 2015; 26:718-24. [PMID: 25734400 DOI: 10.1021/acs.bioconjchem.5b00059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cyclooctyne conjugates with fluorophores are often used for bioorthogonal labeling in cells and tissues. However, no comprehensive library of one cyclooctyne core structure with different fluorescent dyes spanning the whole visible spectrum up to the NIR had been described so far. Hence, we synthesized and evaluated one cyclooctyne core structure which is easily accessible for the attachment of different dyes for multicolor imaging, FRET analysis, and study of metabolism in vivo. For these reasons we developed an easy one step synthesis starting from a known cyclooctyne. In combination with NHS-activated dyes, the cyclooctyne reacted to the dye DAB-MFCO conjugates within only 1-2 h at room temperature with high yields. We created conjugates with dyes that have high brightness and are bleaching stable with wavelengths from green to NIR. The ability to label glycans on cell surfaces was tested. All dye DAB-MFCO conjugates undergo click reactions on azide functionalized glycan structures with satisfactory photophysical properties. In total, seven different dye DAB-MFCO conjugates were synthesized; their photophysical properties and suitability for click labeling in biological applications were evaluated, making them suitable for single molecule and high resolution measurements.
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Affiliation(s)
- Anna Hörner
- †Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany.,‡Light Technology Institute, Karlsruhe Institute of Technology, Engesserstraße 13, 76131 Karlsruhe, Germany
| | - Tobias Hagendorn
- †Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| | - Ute Schepers
- †Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany.,§Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Stefan Bräse
- †Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany.,§Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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155
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Recent advances in bioorthogonal reactions for site-specific protein labeling and engineering. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.065] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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156
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157
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Synthetic mimics of the extracellular matrix: how simple is complex enough? Ann Biomed Eng 2015; 43:489-500. [PMID: 25753017 DOI: 10.1007/s10439-015-1297-4] [Citation(s) in RCA: 128] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 08/27/2014] [Indexed: 10/23/2022]
Abstract
Cells reside in a complex and dynamic extracellular matrix where they interact with a myriad of biophysical and biochemical cues that direct their function and regulate tissue homeostasis, wound repair, and even pathophysiological events. There is a desire in the biomaterials community to develop synthetic hydrogels to recapitulate facets of the ECM for in vitro culture platforms and tissue engineering applications. Advances in synthetic hydrogel design and chemistries, including user-tunable platforms, have broadened the field's understanding of the role of matrix cues in directing cellular processes and enabled the design of improved tissue engineering scaffolds. This review focuses on recent advances in the development and fabrication of hydrogels and discusses what aspects of ECM signals can be incorporated to direct cell function in different contexts.
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158
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Jonker AM, Borrmann A, van Eck ERH, van Delft FL, Löwik DWPM, van Hest JCM. A fast and activatable cross-linking strategy for hydrogel formation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:1235-1240. [PMID: 25535032 DOI: 10.1002/adma.201404448] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 11/24/2014] [Indexed: 06/04/2023]
Abstract
Strain-promoted oxidation-controlled cyclo-octyne-1,2-quinone cycloaddition (SPOCQ) is a fast and activatable cross-linking strategy for hydrogel formation. Gelation is induced by oxidation, which is performed both chemically using sodium periodate and enzymatically using mushroom tyrosinase. Due to the fast reaction kinetics, SPOCQ-formed hydrogels can be functionalized in one-pot with an azido-containing moiety using SPAAC cross-linking.
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159
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Development of bioorthogonal reactions and their applications in bioconjugation. Molecules 2015; 20:3190-205. [PMID: 25690284 PMCID: PMC6290559 DOI: 10.3390/molecules20023190] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 01/19/2015] [Accepted: 02/02/2015] [Indexed: 12/12/2022] Open
Abstract
Biomolecule labeling using chemical probes with specific biological activities has played important roles for the elucidation of complicated biological processes. Selective bioconjugation strategies are highly-demanded in the construction of various small-molecule probes to explore complex biological systems. Bioorthogonal reactions that undergo fast and selective ligation under bio-compatible conditions have found diverse applications in the development of new bioconjugation strategies. The development of new bioorthogonal reactions in the past decade has been summarized with comments on their potentials as bioconjugation method in the construction of various biological probes for investigating their target biomolecules. For the applications of bioorthogonal reactions in the site-selective biomolecule conjugation, examples have been presented on the bioconjugation of protein, glycan, nucleic acids and lipids.
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160
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Affiliation(s)
- Mikhail D. Kosobokov
- N. D. Zelinsky Institute
of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Vitalij V. Levin
- N. D. Zelinsky Institute
of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Marina I. Struchkova
- N. D. Zelinsky Institute
of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute
of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Leninsky prosp. 47, Russian Federation
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161
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Jao CY, Roth M, Welti R, Salic A. Biosynthetic Labeling and Two-Color Imaging of Phospholipids in Cells. Chembiochem 2015; 16:472-6. [DOI: 10.1002/cbic.201402149] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Indexed: 11/09/2022]
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162
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Ueda M, Yang G, Nukadzuka Y, Ishimaru Y, Tamura S, Manabe Y. Functional importance of the sugar moiety of jasmonic acid glucoside for bioactivity and target affinity. Org Biomol Chem 2015; 13:55-8. [DOI: 10.1039/c4ob02106a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Importance of the d-glycopyranoside structure for the bioactivity and target affinity of jasmonic acid glucoside.
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Affiliation(s)
- Minoru Ueda
- Laboratory of Organic Chemistry
- Department of Chemistry
- Tohoku University
- Sendai 980-8578
- Japan
| | - Gangqiang Yang
- Laboratory of Organic Chemistry
- Department of Chemistry
- Tohoku University
- Sendai 980-8578
- Japan
| | - Yuuki Nukadzuka
- Laboratory of Organic Chemistry
- Department of Chemistry
- Tohoku University
- Sendai 980-8578
- Japan
| | - Yasuhiro Ishimaru
- Laboratory of Organic Chemistry
- Department of Chemistry
- Tohoku University
- Sendai 980-8578
- Japan
| | - Satoru Tamura
- Laboratory of Organic Chemistry
- Department of Chemistry
- Tohoku University
- Sendai 980-8578
- Japan
| | - Yoshiyuki Manabe
- Laboratory of Organic Chemistry
- Department of Chemistry
- Tohoku University
- Sendai 980-8578
- Japan
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163
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Hatzenpichler R, Orphan VJ. Detection of Protein-Synthesizing Microorganisms in the Environment via Bioorthogonal Noncanonical Amino Acid Tagging (BONCAT). SPRINGER PROTOCOLS HANDBOOKS 2015. [DOI: 10.1007/8623_2015_61] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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164
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Albrecht M, Lippach A, Exner MP, Jerbi J, Springborg M, Budisa N, Wenz G. Site-specific conjugation of 8-ethynyl-BODIPY to a protein by [2 + 3] cycloaddition. Org Biomol Chem 2015; 13:6728-36. [DOI: 10.1039/c5ob00505a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We report a straightforward synthesis of 8-ethynyl-BODIPY derivatives and their potential as fluorescent labeling compounds using an alkyne–azide click chemistry approach.
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Affiliation(s)
- Marcel Albrecht
- Organic Macromolecular Chemistry
- Campus Saarbrücken C4.2
- Saarland University
- D-66123 Saarbrücken
- Germany
| | - Andreas Lippach
- Organic Macromolecular Chemistry
- Campus Saarbrücken C4.2
- Saarland University
- D-66123 Saarbrücken
- Germany
| | | | - Jihene Jerbi
- Physical and Theoretical Chemistry
- Campus Saarbrücken B2.2
- Saarland University
- D-66123 Saarbrücken
- Germany
| | - Michael Springborg
- Physical and Theoretical Chemistry
- Campus Saarbrücken B2.2
- Saarland University
- D-66123 Saarbrücken
- Germany
| | - Nediljko Budisa
- Department of Chemistry-Biocatalysis
- TU Berlin
- D-10623 Berlin
- Germany
| | - Gerhard Wenz
- Organic Macromolecular Chemistry
- Campus Saarbrücken C4.2
- Saarland University
- D-66123 Saarbrücken
- Germany
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165
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Min BS, Jeon HB, Jeong TU, Kim SY. Energetic polymeric networks prepared via a solvent- and catalyst-free thermal cycloaddition of azide-bearing polymers with alkynes and hydroxyl-isocyanate addition reactions. Polym Chem 2015. [DOI: 10.1039/c5py01276g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The construction of azide-bearing polymeric networks using a dipolarophile and a diisocyanate.
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Affiliation(s)
- Byoung Sun Min
- Department of Chemistry
- Korea Advanced Institute of Science and Technology(KAIST)
- Daejeon
- Korea
- 4-R&D Institute
| | | | - Tae Uk Jeong
- Department of Chemistry
- Korea Advanced Institute of Science and Technology(KAIST)
- Daejeon
- Korea
| | - Sang Youl Kim
- Department of Chemistry
- Korea Advanced Institute of Science and Technology(KAIST)
- Daejeon
- Korea
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166
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Ni R, Mitsuda N, Kashiwagi T, Igawa K, Tomooka K. Heteroatom-embedded Medium-Sized Cycloalkynes: Concise Synthesis, Structural Analysis, and Reactions. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409910] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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167
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Ni R, Mitsuda N, Kashiwagi T, Igawa K, Tomooka K. Heteroatom-embedded Medium-Sized Cycloalkynes: Concise Synthesis, Structural Analysis, and Reactions. Angew Chem Int Ed Engl 2014; 54:1190-4. [DOI: 10.1002/anie.201409910] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Indexed: 11/11/2022]
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168
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Chiu M, Tchitchanov BH, Zimmerli D, Sanhueza IA, Schoenebeck F, Trapp N, Schweizer WB, Diederich F. Strain‐Accelerated Formation of Chiral, Optically Active Buta‐1,3‐dienes. Angew Chem Int Ed Engl 2014; 54:349-54. [DOI: 10.1002/anie.201409289] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Indexed: 12/19/2022]
Affiliation(s)
- Melanie Chiu
- Laboratorium für Organische Chemie, ETH Zurich, Vladimir‐Prelog‐Weg 3, 8093 Zurich (Switzerland)
| | - Boris H. Tchitchanov
- Laboratorium für Organische Chemie, ETH Zurich, Vladimir‐Prelog‐Weg 3, 8093 Zurich (Switzerland)
| | - Daniel Zimmerli
- Discovery Technologies, Bldg 92/5.64C, F. Hoffmann‐La Roche Ltd. 4070 Basel (Switzerland)
| | - Italo A. Sanhueza
- Laboratorium für Organische Chemie, ETH Zurich, Vladimir‐Prelog‐Weg 3, 8093 Zurich (Switzerland)
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen (Germany)
| | - Franziska Schoenebeck
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen (Germany)
| | - Nils Trapp
- Laboratorium für Organische Chemie, ETH Zurich, Vladimir‐Prelog‐Weg 3, 8093 Zurich (Switzerland)
| | - W. Bernd Schweizer
- Laboratorium für Organische Chemie, ETH Zurich, Vladimir‐Prelog‐Weg 3, 8093 Zurich (Switzerland)
| | - François Diederich
- Laboratorium für Organische Chemie, ETH Zurich, Vladimir‐Prelog‐Weg 3, 8093 Zurich (Switzerland)
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169
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Chiu M, Tchitchanov BH, Zimmerli D, Sanhueza IA, Schoenebeck F, Trapp N, Schweizer WB, Diederich F. Spannungsvermittelte Bildung chiraler, optisch aktiver Buta‐1,3‐diene. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409289] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Melanie Chiu
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir‐Prelog‐Weg 3, 8093 Zürich (Schweiz)
| | - Boris H. Tchitchanov
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir‐Prelog‐Weg 3, 8093 Zürich (Schweiz)
| | - Daniel Zimmerli
- Discovery Technologies, Bldg 92/5.64C, F. Hoffmann‐La Roche Ltd. 4070 Basel (Schweiz)
| | - Italo A. Sanhueza
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir‐Prelog‐Weg 3, 8093 Zürich (Schweiz)
- Institut für Organische Chemie, RWTH Aachen, Landoltweg 1, 52074 Aachen (Deutschland)
| | - Franziska Schoenebeck
- Institut für Organische Chemie, RWTH Aachen, Landoltweg 1, 52074 Aachen (Deutschland)
| | - Nils Trapp
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir‐Prelog‐Weg 3, 8093 Zürich (Schweiz)
| | - W. Bernd Schweizer
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir‐Prelog‐Weg 3, 8093 Zürich (Schweiz)
| | - François Diederich
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir‐Prelog‐Weg 3, 8093 Zürich (Schweiz)
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170
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Alabugin IV, Bresch S, dos Passos Gomes G. Orbital hybridization: a key electronic factor in control of structure and reactivity. J PHYS ORG CHEM 2014. [DOI: 10.1002/poc.3382] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Igor V. Alabugin
- Department of Chemistry and Biochemistry; Florida State University; Tallahassee FL 32306-4390 USA
| | - Stefan Bresch
- Department of Chemistry and Biochemistry; Florida State University; Tallahassee FL 32306-4390 USA
| | - Gabriel dos Passos Gomes
- Department of Chemistry and Biochemistry; Florida State University; Tallahassee FL 32306-4390 USA
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171
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Rouhanifard SH, López-Aguilar A, Wu P. CHoMP: a chemoenzymatic histology method using clickable probes. Chembiochem 2014; 15:2667-73. [PMID: 25403986 DOI: 10.1002/cbic.201402433] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Indexed: 12/29/2022]
Abstract
The characterization of aberrant glycosylation patterns in biopsied patient samples represents a remarkable challenge for scientists and medical doctors due to the lack of specific methods for detection. Here, we report the development of a histological method, dubbed CHoMP-chemoenzymatic histology of membrane polysaccharides-for analyzing glycosylation patterns in mammalian tissues. This method exploits a recombinant glycosyltransferase to transfer a monosaccharide analogue equipped with a chemical handle to a specific cell-surface glycan target, which can then be derivatized with imaging probes by using bioorthogonal click chemistry for visualization. We applied CHoMP to survey changes in expression of N-acetyllactosamine (LacNAc) in human samples from patients afflicted with lung adenocarcinoma and observed a sharp decrease in expression levels between normal and early grade tumors, thus suggesting a potential application of this technique in early cancer diagnosis.
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Affiliation(s)
- Sara H Rouhanifard
- Department of Biochemistry, Albert Einstein College of Medicine, Price Center for Genetics and Translational Medicine, 1301 Morris Park Avenue, Room 513, Bronx, NY 10461 (USA)
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172
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Nischan N, Hackenberger CPR. Site-specific PEGylation of proteins: recent developments. J Org Chem 2014; 79:10727-33. [PMID: 25333794 DOI: 10.1021/jo502136n] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The attachment of linear polyethylene glycol (PEG) to peptides and proteins for their stabilization for in vivo applications is a milestone in pharmaceutical research and protein-drug development. However, conventional methods often lead to heterogeneous PEGylation mixtures with reduced protein activity. Current synthetic efforts aim to provide site-specific approaches by chemoselective targeting of canonical and noncanonical amino acids and to improve the PEG architecture. This synopsis highlights recent work in this area, which also resulted in improved pharmacokinetics of peptide and protein therapeutics.
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Affiliation(s)
- Nicole Nischan
- Leibniz-Institut für Molekulare Pharmakologie (FMP) , Robert-Rössle-Strasse 10, 13125 Berlin, Germany
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173
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Knight GT, Klann T, McNulty JD, Ashton RS. Fabricating complex culture substrates using robotic microcontact printing (R-µCP) and sequential nucleophilic substitution. J Vis Exp 2014:e52186. [PMID: 25407245 PMCID: PMC4353402 DOI: 10.3791/52186] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
In tissue engineering, it is desirable to exhibit spatial control of tissue morphology and cell fate in culture on the micron scale. Culture substrates presenting grafted poly(ethylene glycol) (PEG) brushes can be used to achieve this task by creating microscale, non-fouling and cell adhesion resistant regions as well as regions where cells participate in biospecific interactions with covalently tethered ligands. To engineer complex tissues using such substrates, it will be necessary to sequentially pattern multiple PEG brushes functionalized to confer differential bioactivities and aligned in microscale orientations that mimic in vivo niches. Microcontact printing (μCP) is a versatile technique to pattern such grafted PEG brushes, but manual μCP cannot be performed with microscale precision. Thus, we combined advanced robotics with soft-lithography techniques and emerging surface chemistry reactions to develop a robotic microcontact printing (R-μCP)-assisted method for fabricating culture substrates with complex, microscale, and highly ordered patterns of PEG brushes presenting orthogonal 'click' chemistries. Here, we describe in detail the workflow to manufacture such substrates.
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Affiliation(s)
- Gavin T Knight
- Department of Biomedical Engineering, University of Wisconsin, Madison
| | - Tyler Klann
- Department of Biomedical Engineering, University of Wisconsin, Madison
| | - Jason D McNulty
- Department of Biomedical Engineering, University of Wisconsin, Madison; Department of Mechanical Engineering, University of Wisconsin, Madison
| | - Randolph S Ashton
- Department of Biomedical Engineering, University of Wisconsin, Madison;
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174
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Airoldi C, Mourtas S, Cardona F, Zona C, Sironi E, D'Orazio G, Markoutsa E, Nicotra F, Antimisiaris SG, La Ferla B. Nanoliposomes presenting on surface a cis-glycofused benzopyran compound display binding affinity and aggregation inhibition ability towards Amyloid β1-42 peptide. Eur J Med Chem 2014; 85:43-50. [DOI: 10.1016/j.ejmech.2014.07.085] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 07/04/2014] [Accepted: 07/23/2014] [Indexed: 11/17/2022]
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175
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Yoshida S, Hatakeyama Y, Johmoto K, Uekusa H, Hosoya T. Transient Protection of Strained Alkynes from Click Reaction via Complexation with Copper. J Am Chem Soc 2014; 136:13590-3. [DOI: 10.1021/ja507660x] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Suguru Yoshida
- Laboratory
of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Yasutomo Hatakeyama
- Laboratory
of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kohei Johmoto
- Department
of Chemistry and Materials Science, Graduate School of Science and
Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Hidehiro Uekusa
- Department
of Chemistry and Materials Science, Graduate School of Science and
Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Takamitsu Hosoya
- Laboratory
of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
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176
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Martin SE, Ganguly T, Munske GR, Fulton MD, Hopkins MR, Berkman CE, Black ME. Development of inhibitor-directed enzyme prodrug therapy (IDEPT) for prostate cancer. Bioconjug Chem 2014; 25:1752-60. [PMID: 25157916 PMCID: PMC4198102 DOI: 10.1021/bc500362n] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
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Prostate
cancer (PCa) is the second most common cause of cancer
death among American men after lung cancer. Unfortunately, current
therapies do not provide effective treatments for patients with advanced,
metastatic, or hormone refractory disease. Therefore, we seek to generate
therapeutic agents for a novel PCa treatment strategy by delivering
a suicide enzyme (yCDtriple) to a cell membrane bound biomarker
found on PCa cells (prostate-specific membrane antigen (PSMA)). This
approach has resulted in a new PCa treatment strategy reported here
as inhibitor-directed enzyme prodrug therapy (IDEPT). The therapeutic
agents described were generated using a click chemistry reaction between
the unnatural amino acid (p-azidophenylalanine (pAzF)) incorporated into yCDtriple and the dibenzylcyclooctyne
moiety of our PSMA targeting agent (DBCO-PEG4-AH2-TG97). After characterization of the therapeutic agents, we demonstrate
significant PCa cell killing of PSMA-positive cells. Importantly,
we demonstrate that this click chemistry approach can be used to efficiently
couple a therapeutic protein to a targeting agent and may be applicable
to the ablation of other types of cancers and/or malignancies.
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Affiliation(s)
- Stacy E Martin
- School of Molecular Biosciences and §Department of Chemistry, Washington State University , Pullman, Washington 99164-7520, United States
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177
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Kurra Y, Odoi KA, Lee YJ, Yang Y, Lu T, Wheeler SE, Torres-Kolbus J, Deiters A, Liu WR. Two rapid catalyst-free click reactions for in vivo protein labeling of genetically encoded strained alkene/alkyne functionalities. Bioconjug Chem 2014; 25:1730-8. [PMID: 25158039 PMCID: PMC4166034 DOI: 10.1021/bc500361d] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
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Detailed
kinetic analyses of inverse electron-demand Diels–Alder
cycloaddition and nitrilimine-alkene/alkyne 1,3-diploar cycloaddition
reactions were conducted and the reactions were applied for rapid
protein bioconjugation. When reacted with a tetrazine or a diaryl
nitrilimine, strained alkene/alkyne entities including norbornene, trans-cyclooctene, and cyclooctyne displayed rapid kinetics.
To apply these “click” reactions for site-specific protein
labeling, five tyrosine derivatives that contain a norbornene, trans-cyclooctene, or cyclooctyne entity were genetically
encoded into proteins in Escherichia coli using an engineered pyrrolysyl-tRNA synthetase-tRNACUAPyl pair. Proteins
bearing these noncanonical amino acids were successively labeled with
a fluorescein tetrazine dye and a diaryl nitrilimine both in vitro
and in living cells.
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Affiliation(s)
- Yadagiri Kurra
- Department of Chemistry, Texas A&M University , College Station, Texas 77843, United States
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178
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Xu L, Zolotarskaya OY, Yeudall WA, Yang H. Click hybridization of immune cells and polyamidoamine dendrimers. Adv Healthc Mater 2014; 3:1430-8. [PMID: 24574321 DOI: 10.1002/adhm.201300515] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 01/25/2014] [Indexed: 11/06/2022]
Abstract
Immobilizing highly branched polyamidoamine (PAMAM) dendrimers to the cell surface represents an innovative method of enhancing cell surface loading capacity to deliver therapeutic and imaging agents. In this work, hybridized immune cells, that is, macrophage RAW264.7 (RAW), with PAMAM dendrimer G4.0 (DEN) on the basis of bioorthogonal chemistry are clicked. Efficient and selective cell surface immobilization of dendrimers is confirmed by confocal microscopy. Viability and motility of RAW-DEN hybrids remain the same as untreated RAW cells according to WST-1 assay and wound closure assay. Furthermore, Western blot analysis reveals that there are no significant alterations in the expression levels of signaling molecules AKT, p38, and NFκB (p65) and their corresponding activated (phosphorylated) forms in RAW cells treated with azido sugar and dendrimer, indicating that the hybridization process neither induced cell stress response nor altered normal signaling pathways. Taken together, this work shows the feasibility of applying bioorthogonal chemistry to create cell-nanoparticle hybrids and demonstrates the noninvasiveness of this cell surface engineering approach.
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Affiliation(s)
- Leyuan Xu
- Department of Biomedical Engineering; Virginia Commonwealth University; Richmond VA 23284 USA
| | - Olga Yu. Zolotarskaya
- Department of Biomedical Engineering; Virginia Commonwealth University; Richmond VA 23284 USA
| | - W. Andrew Yeudall
- Philips Institute of Oral and Craniofacial Molecular Biology; Virginia Commonwealth University; Richmond VA 23298 USA
- Massey Cancer Center; Virginia Commonwealth University; Richmond VA 23298 USA
| | - Hu Yang
- Department of Biomedical Engineering; Virginia Commonwealth University; Richmond VA 23284 USA
- Massey Cancer Center; Virginia Commonwealth University; Richmond VA 23298 USA
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179
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Ma X, Wang H, Chen W. N-heterocyclic carbene-stabilized palladium complexes as organometallic catalysts for bioorthogonal cross-coupling reactions. J Org Chem 2014; 79:8652-8. [PMID: 25144406 DOI: 10.1021/jo5014228] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A small library of water-soluble N-heterocyclic carbene (NHC)-stabilized palladium complexes was prepared and applied for cross-couplings of biomolecules under mild conditions in water. Pd-NHC complexes bearing hydrophilic groups were demonstrated to be efficient catalysts for the Suzuki-Miyaura coupling of various unnatural amino acids and proteins bearing p-iodophenyl functional groups. We further utilized this catalytic system for the rapid bioorthogonal labeling of proteins on the surfaces of mammalian cells. These results demonstrated that NHC-stabilized metal complexes have potential utility in cellular systems.
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Affiliation(s)
- Xueji Ma
- Department of Chemistry, Zhejiang University , Xixi Campus, Hangzhou 310028, China
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180
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Reinhardt U, Lotze J, Zernia S, Mörl K, Beck-Sickinger AG, Seitz O. Proteintemplat-vermittelter Acyltransfer: eine chemische Methode für die Markierung von Membranproteinen an lebenden Zellen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403214] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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181
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Reinhardt U, Lotze J, Zernia S, Mörl K, Beck-Sickinger AG, Seitz O. Peptide-Templated Acyl Transfer: A Chemical Method for the Labeling of Membrane Proteins on Live Cells. Angew Chem Int Ed Engl 2014; 53:10237-41. [DOI: 10.1002/anie.201403214] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Indexed: 12/22/2022]
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182
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Yu YB, He GZ, Zhang X. Synthesis of α,α-Difluoromethylene Alkynes by Palladium-Catalyzedgem-Difluoropropargylation of Aryl and Alkenyl Boron Reagents. Angew Chem Int Ed Engl 2014; 53:10457-61. [DOI: 10.1002/anie.201405204] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 06/28/2014] [Indexed: 01/16/2023]
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183
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Yu YB, He GZ, Zhang X. Synthesis of α,α-Difluoromethylene Alkynes by Palladium-Catalyzedgem-Difluoropropargylation of Aryl and Alkenyl Boron Reagents. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405204] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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184
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Gold B, Batsomboon P, Dudley GB, Alabugin IV. Alkynyl Crown Ethers as a Scaffold for Hyperconjugative Assistance in Noncatalyzed Azide–Alkyne Click Reactions: Ion Sensing through Enhanced Transition-State Stabilization. J Org Chem 2014; 79:6221-32. [DOI: 10.1021/jo500958n] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Brian Gold
- Department of Chemistry and
Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Paratchata Batsomboon
- Department of Chemistry and
Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Gregory B. Dudley
- Department of Chemistry and
Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Igor V. Alabugin
- Department of Chemistry and
Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
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185
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Leunissen EHP, Meuleners MHL, Verkade JMM, Dommerholt J, Hoenderop JGJ, van Delft FL. Copper-Free Click Reactions with Polar Bicyclononyne Derivatives for Modulation of Cellular Imaging. Chembiochem 2014; 15:1446-51. [DOI: 10.1002/cbic.201402030] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Indexed: 01/19/2023]
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186
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Bezagu M, Errico C, Chaulot-Talmon V, Monti F, Tanter M, Tabeling P, Cossy J, Arseniyadis S, Couture O. High Spatiotemporal Control of Spontaneous Reactions Using Ultrasound-Triggered Composite Droplets. J Am Chem Soc 2014; 136:7205-8. [DOI: 10.1021/ja5019354] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marine Bezagu
- Laboratoire
de Chimie Organique, Institute of Chemistry, Biology and Innovation
(CBI), − UMR 8231 − ESPCI ParisTech/CNRS/PSL* Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Claudia Errico
- Institut
Langevin, ESPCI ParisTech, CNRS (UMR 7587), INSERM (U979), Paris, France
| | - Victor Chaulot-Talmon
- Laboratoire
de Microfluidique, MEMS et Nanostructures, ESPCI ParisTech, CNRS (UMR Gulliver 7083), Paris, France
| | - Fabrice Monti
- Laboratoire
de Microfluidique, MEMS et Nanostructures, ESPCI ParisTech, CNRS (UMR Gulliver 7083), Paris, France
| | - Mickael Tanter
- Institut
Langevin, ESPCI ParisTech, CNRS (UMR 7587), INSERM (U979), Paris, France
| | - Patrick Tabeling
- Laboratoire
de Microfluidique, MEMS et Nanostructures, ESPCI ParisTech, CNRS (UMR Gulliver 7083), Paris, France
| | - Janine Cossy
- Laboratoire
de Chimie Organique, Institute of Chemistry, Biology and Innovation
(CBI), − UMR 8231 − ESPCI ParisTech/CNRS/PSL* Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Stellios Arseniyadis
- Laboratoire
de Chimie Organique, Institute of Chemistry, Biology and Innovation
(CBI), − UMR 8231 − ESPCI ParisTech/CNRS/PSL* Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Olivier Couture
- Institut
Langevin, ESPCI ParisTech, CNRS (UMR 7587), INSERM (U979), Paris, France
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187
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King M, Wagner A. Developments in the Field of Bioorthogonal Bond Forming Reactions—Past and Present Trends. Bioconjug Chem 2014; 25:825-39. [DOI: 10.1021/bc500028d] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Mathias King
- Laboratory of Functional
Chemo-Systems (UMR 7199), Labex Medalis, University of Strasbourg - CNRS, 74 Route du Rhin, BP 60024, 67401 Illkirch-Graffenstaden, France
| | - Alain Wagner
- Laboratory of Functional
Chemo-Systems (UMR 7199), Labex Medalis, University of Strasbourg - CNRS, 74 Route du Rhin, BP 60024, 67401 Illkirch-Graffenstaden, France
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188
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Arzt M, Seidler C, Ng DYW, Weil T. Reversible Click Reactions with Boronic Acids to Build Supramolecular Architectures in Water. Chem Asian J 2014; 9:1994-2003. [DOI: 10.1002/asia.201402061] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Indexed: 12/31/2022]
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189
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Hatzenpichler R, Scheller S, Tavormina PL, Babin BM, Tirrell DA, Orphan VJ. In situ visualization of newly synthesized proteins in environmental microbes using amino acid tagging and click chemistry. Environ Microbiol 2014; 16:2568-90. [PMID: 24571640 PMCID: PMC4122687 DOI: 10.1111/1462-2920.12436] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/14/2014] [Accepted: 02/18/2014] [Indexed: 12/01/2022]
Abstract
Here we describe the application of a new click chemistry method for fluorescent tracking of protein synthesis in individual microorganisms within environmental samples. This technique, termed bioorthogonal non-canonical amino acid tagging (BONCAT), is based on the in vivo incorporation of the non-canonical amino acid L-azidohomoalanine (AHA), a surrogate for l-methionine, followed by fluorescent labelling of AHA-containing cellular proteins by azide-alkyne click chemistry. BONCAT was evaluated with a range of phylogenetically and physiologically diverse archaeal and bacterial pure cultures and enrichments, and used to visualize translationally active cells within complex environmental samples including an oral biofilm, freshwater and anoxic sediment. We also developed combined assays that couple BONCAT with ribosomal RNA (rRNA)-targeted fluorescence in situ hybridization (FISH), enabling a direct link between taxonomic identity and translational activity. Using a methanotrophic enrichment culture incubated under different conditions, we demonstrate the potential of BONCAT-FISH to study microbial physiology in situ. A direct comparison of anabolic activity using BONCAT and stable isotope labelling by nano-scale secondary ion mass spectrometry ((15)NH(3) assimilation) for individual cells within a sediment-sourced enrichment culture showed concordance between AHA-positive cells and (15)N enrichment. BONCAT-FISH offers a fast, inexpensive and straightforward fluorescence microscopy method for studying the in situ activity of environmental microbes on a single-cell level.
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Affiliation(s)
- Roland Hatzenpichler
- Divisions of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, 91125, USA
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190
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Lang K, Chin JW. Cellular incorporation of unnatural amino acids and bioorthogonal labeling of proteins. Chem Rev 2014; 114:4764-806. [PMID: 24655057 DOI: 10.1021/cr400355w] [Citation(s) in RCA: 801] [Impact Index Per Article: 80.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kathrin Lang
- Medical Research Council Laboratory of Molecular Biology , Francis Crick Avenue, Cambridge CB2 0QH, United Kingdom
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191
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Knight JC, Cornelissen B. Bioorthogonal chemistry: implications for pretargeted nuclear (PET/SPECT) imaging and therapy. AMERICAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING 2014; 4:96-113. [PMID: 24753979 PMCID: PMC3992206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Accepted: 12/06/2013] [Indexed: 06/03/2023]
Abstract
Due to their rapid and highly selective nature, bioorthogonal chemistry reactions are attracting a significant amount of recent interest in the radiopharmaceutical community. Over the last few years, reactions of this type have found tremendous utility in the construction of new radiopharmaceuticals and as a method of bioconjugation. Furthermore, reports are beginning to emerge in which these reactions are also being applied in vivo to facilitate a novel pretargeting strategy for the imaging and therapy of cancer. The successful implementation of such an approach could lead to dramatic improvements in image quality, therapeutic index, and reduced radiation dose to non-target organs and tissues. This review will focus on the potential of various bioorthogonal chemistry reactions to be used successfully in such an approach.
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Affiliation(s)
- James C Knight
- CR-UK/MRC Gray Institute for Radiation Oncology and Biology, University of OxfordOxford, OX3 7LJ, United Kingdom
- Radiobiology Research Institute, Churchill HospitalOxford, OX3 7LJ, United Kingdom
| | - Bart Cornelissen
- CR-UK/MRC Gray Institute for Radiation Oncology and Biology, University of OxfordOxford, OX3 7LJ, United Kingdom
- Radiobiology Research Institute, Churchill HospitalOxford, OX3 7LJ, United Kingdom
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192
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Wang CG, Koyama Y, Uchida S, Takata T. Synthesis of Highly Reactive Polymer Nitrile N-Oxides for Effective Solvent-Free Grafting. ACS Macro Lett 2014; 3:286-290. [PMID: 35590522 DOI: 10.1021/mz500069f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A one-pot synthesis of polymer nitrile N-oxides was achieved via the Michael addition of living polymer anions derived from vinyl monomers to commercially available trans-β-nitrostyrene and subsequent dehydration with concd H2SO4. The polymer nitrile N-oxides are effective as grafting agents in catalyst- and solvent-free 1,3-dipolar cycloadditions to unsaturated-bond-containing polymers with high conversion and exhibit higher reactivity compared to that of nitrile N-oxides prepared from 1,1-diphenylnitroethene. Application to the preparation of a functional glass surface was demonstrated using PtBMA nitrile N-oxide as a grafting agent.
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Affiliation(s)
- Chen-Gang Wang
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yasuhito Koyama
- Catalysis
Research Center, Hokkaido University, N21, W10, Kita-ku, Sapporo 001-0021, Japan
| | - Satoshi Uchida
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Toshikazu Takata
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
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193
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Sletten EM, de Almeida G, Bertozzi CR. A homologation approach to the synthesis of difluorinated cycloalkynes. Org Lett 2014; 16:1634-7. [PMID: 24588780 PMCID: PMC3993865 DOI: 10.1021/ol500260d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Difluorinated cyclooctynes are important
reagents for labeling
azido-biomolecules through copper-free click chemistry. Here, a safe,
scalable synthesis of a difluorinated cyclooctyne is reported, which
involves a key homologation/ring-expansion reaction. Sequential ring
expansions were also employed to synthesize and study a novel difluorinated
cyclononyne.
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Affiliation(s)
- Ellen M Sletten
- Department of Chemistry, University of California , Berkeley, California 94720, United States
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194
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Hatzenpichler R, Scheller S, Tavormina PL, Babin BM, Tirrell DA, Orphan VJ. In situ visualization of newly synthesized proteins in environmental microbes using amino acid tagging and click chemistry. Environ Microbiol 2014. [PMID: 24571640 DOI: 10.1111/1462‐2920.12436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Here we describe the application of a new click chemistry method for fluorescent tracking of protein synthesis in individual microorganisms within environmental samples. This technique, termed bioorthogonal non-canonical amino acid tagging (BONCAT), is based on the in vivo incorporation of the non-canonical amino acid L-azidohomoalanine (AHA), a surrogate for l-methionine, followed by fluorescent labelling of AHA-containing cellular proteins by azide-alkyne click chemistry. BONCAT was evaluated with a range of phylogenetically and physiologically diverse archaeal and bacterial pure cultures and enrichments, and used to visualize translationally active cells within complex environmental samples including an oral biofilm, freshwater and anoxic sediment. We also developed combined assays that couple BONCAT with ribosomal RNA (rRNA)-targeted fluorescence in situ hybridization (FISH), enabling a direct link between taxonomic identity and translational activity. Using a methanotrophic enrichment culture incubated under different conditions, we demonstrate the potential of BONCAT-FISH to study microbial physiology in situ. A direct comparison of anabolic activity using BONCAT and stable isotope labelling by nano-scale secondary ion mass spectrometry ((15)NH(3) assimilation) for individual cells within a sediment-sourced enrichment culture showed concordance between AHA-positive cells and (15)N enrichment. BONCAT-FISH offers a fast, inexpensive and straightforward fluorescence microscopy method for studying the in situ activity of environmental microbes on a single-cell level.
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Affiliation(s)
- Roland Hatzenpichler
- Divisions of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, 91125, USA
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195
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Kang DW, Kim EJ. Design, Synthesis and Preliminary Biological Evaluation of a Biotin-S-S-Phosphine Reagent. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.2.383] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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196
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Wang XS, Lee YJ, Liu WR. The nitrilimine-alkene cycloaddition is an ultra rapid click reaction. Chem Commun (Camb) 2014; 50:3176-9. [PMID: 24519550 DOI: 10.1039/c3cc48682f] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The transient formation of nitrilimine in aqueous conditions is greatly influenced by pH and chloride. In basic conditions (pH 10) with no chloride, a diarylnitrilimine precursor readily ionizes to form diarylnitrilimine that reacts almost instantly with an acrylamide-containing protein and fluorescently labels it.
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197
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Patenaude M, Smeets NMB, Hoare T. Designing Injectable, Covalently Cross-Linked Hydrogels for Biomedical Applications. Macromol Rapid Commun 2014; 35:598-617. [DOI: 10.1002/marc.201300818] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Revised: 12/11/2013] [Indexed: 12/22/2022]
Affiliation(s)
- Mathew Patenaude
- Department of Chemical Engineering; McMaster University; 1280 Main St. W. Hamilton Ontario Canada L8S 4L7
| | - Niels M. B. Smeets
- Department of Chemical Engineering; McMaster University; 1280 Main St. W. Hamilton Ontario Canada L8S 4L7
| | - Todd Hoare
- Associate Professor, Department of Chemical Engineering; McMaster University; 1280 Main St. W. Hamilton Ontario Canada L8S 4L7
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198
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Affiliation(s)
- Kathrin Lang
- Medical Research Council - Laboratory
of Molecular Biology, Francis Crick
Avenue, Cambridge CB2 0QH, U.K
| | - Jason W. Chin
- Medical Research Council - Laboratory
of Molecular Biology, Francis Crick
Avenue, Cambridge CB2 0QH, U.K
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199
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Tanaka K, Fukase K. Chemical Approach to a Whole Body Imaging of Sialo-N-Linked Glycans. Top Curr Chem (Cham) 2014; 367:201-30. [PMID: 25971916 DOI: 10.1007/128_2014_603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
PET and noninvasive fluorescence imaging of the sialo-N-linked glycan derivatives are described. To establish the efficient labeling protocol for N-glycans and/or glycoconjugates, new labeling probes of fluorescence and ⁶⁸Ga-DOTA, as the positron emission nucleus for PET, through rapid 6π-azaelectrocyclization were designed and synthesized, (E)-ester aldehydes. The high reactivity of these probes enabled the labeling of lysine residues in peptides, proteins, and even amino groups on the cell surfaces at very low concentrations of the target molecules (~10⁻⁸ M) within a short reaction time (~5 min) to result in "selective" and "non-destructive" labeling of the more accessible amines. The first MicroPET of glycoproteins, ⁶⁸Ga-DOTA-orosomucoid and asialoorosomucoid, successfully visualized the differences in the circulatory residence of glycoproteins, in the presence or absence of sialic acids. In vivo dynamics of the new N-glycoclusters, prepared by the "self-activating" Huisgen cycloaddition reaction, could also be affected significantly by their partial structures at the non-reducing end, i.e., the presence or absence of sialic acids, and/or sialoside linkages to galactose. Azaelectrocyclization chemistry is also applicable to the engineering of the proteins and/or the cell surfaces by the oligosaccharides; lymphocytes chemically engineered by sialo-N-glycan successfully target the tumor implanted in BALB/C nude mice, detected by noninvasive fluorescence imaging.
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Affiliation(s)
- Katsunori Tanaka
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan,
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Chauhan DP, Saha T, Lahiri M, Talukdar P. BODIPY based ‘click on’ fluorogenic dyes: application in live cell imaging. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.11.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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