201
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Berdnikova DV. Photoswitches for controllable RNA binding: a future approach in the RNA-targeting therapy. Chem Commun (Camb) 2021; 57:10819-10826. [PMID: 34585681 DOI: 10.1039/d1cc04241f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
RNA is an emerging drug target that opens new perspectives in the treatment of viral and bacterial infections, cancer and a range of so far incurable genetic diseases. Among the various strategies towards the design and development of selective and efficient ligands for targeting and detection of therapeutically relevant RNA, photoswitchable RNA binders represent a very promising approach due to the possibility to control the ligand-RNA and protein-RNA interactions by light with high spatiotemporal resolution. However, the field of photoswitchable RNA binders still remains underexplored due to challenging design of lead structures that should combine high RNA binding selectivity with efficient photochemical performance. The aim of this highlight article is to describe the development of photoswitchable noncovalent RNA binders and to outline the current situation and perspectives of this emerging interdisciplinary field.
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Affiliation(s)
- Daria V Berdnikova
- Universität Siegen, Organische Chemie II, Adolf-Reichwein-Str. 2, 57076 Siegen, Germany.
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202
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Optical Fibre-Enabled Photoswitching for Localised Activation of an Anti-Cancer Therapeutic Drug. Int J Mol Sci 2021; 22:ijms221910844. [PMID: 34639185 PMCID: PMC8509559 DOI: 10.3390/ijms221910844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/01/2021] [Accepted: 10/03/2021] [Indexed: 11/17/2022] Open
Abstract
Local activation of an anti-cancer drug when and where needed can improve selectivity and reduce undesirable side effects. Photoswitchable drugs can be selectively switched between active and inactive states by illumination with light; however, the clinical development of these drugs has been restricted by the difficulty in delivering light deep into tissue where needed. Optical fibres have great potential for light delivery in vivo, but their use in facilitating photoswitching in anti-cancer compounds has not yet been explored. In this paper, a photoswitchable chemotherapeutic is switched using an optical fibre, and the cytotoxicity of each state is measured against HCT-116 colorectal cancer cells. The performance of optical-fibre-enabled photoswitching is characterised through its dose response. The UV–Vis spectra confirm light delivered by an optical fibre effectively enables photoswitching. The activated drug is shown to be twice as effective as the inactive drug in causing cancer cell death, characterised using an MTT assay and fluorescent microscopy. This is the first study in which a photoswitchable anti-cancer compound is switched using an optical fibre and demonstrates the feasibility of using optical fibres to activate photoswitchable drugs for potential future clinical applications.
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203
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Brady RP, Zhang C, DeFrancisco JR, Barrett BJ, Cheng L, Bragg AE. Multiphoton Control of 6π Photocyclization via State-Dependent Reactant-Product Correlations. J Phys Chem Lett 2021; 12:9493-9500. [PMID: 34559534 DOI: 10.1021/acs.jpclett.1c02353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Multiphoton excitation promises opportunities for opening new photochemical reaction pathways and controlling photoproduct distributions. We demonstrate photonic control of the 6π photocyclization of ortho-terphenyl to make 4a,4b-dihydrotriphenylene (DHT). Using pump-repump-probe spectroscopy we show that 1 + 1' excitation to a high-lying reactant electronic state generates a metastable species characterized by a red absorption feature that accompanies a repump-induced depletion in the one-photon trans-dihydro product (trans-DHT); signatures of the new photoproduct are clearer for a structural analogue of the reactant that is sterically inhibited against one-photon cyclization. Quantum-chemical computations support assignment of this species to cis-DHT, which is accessible photochemically along a disrotatory coordinate from high-lying electronic states reached by 1 + 1' excitation. We use time-resolved spectroscopy to track photochemical dynamics producing cis-DHT. In total, we demonstrate that selective multiphoton excitation opens a new photoreaction channel in these photocyclizing reactants by taking advantage of state-dependent correlations between reactant and product electronic states.
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Affiliation(s)
- Ryan P Brady
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Chaoqun Zhang
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Justin R DeFrancisco
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Brandon J Barrett
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Lan Cheng
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Arthur E Bragg
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
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204
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Weak Interactions of the Isomers of Phototrexate and Two Cavitand Derivatives. Int J Mol Sci 2021; 22:ijms221910764. [PMID: 34639104 PMCID: PMC8509358 DOI: 10.3390/ijms221910764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/28/2021] [Accepted: 10/02/2021] [Indexed: 11/16/2022] Open
Abstract
The interactions of two conformers of newly synthesized photoswitchable azobenzene analogue of methotrexate, called Phototrexate, with two cavitand derivatives, have been investigated in dimethyl sulfoxide medium. Photoluminescence methods have been applied to determine the complex stabilities and the related enthalpy and entropy changes associated to the complex formation around room temperature. Results show opposite temperature dependence of complex stabilities. The structure of the upper rims of the host molecules and the reordered solvent structure were identified as the background of the opposite tendencies of temperature dependence at molecular level. These results can support the therapeutic application of the photoswitchable phototrexate, because the formation of inclusion complexes is a promising method to regulate the pharmacokinetics of drug molecules.
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205
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Simke J, Bösking T, Ravoo BJ. Photoswitching of ortho-Aminated Arylazopyrazoles with Red Light. Org Lett 2021; 23:7635-7639. [PMID: 34533955 DOI: 10.1021/acs.orglett.1c02856] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bidirectional photoswitching of arylazopyrazoles with visible light is enabled by substitution with pyrrolidine and piperidine in the ortho-position of the phenyl ring. The absorption maxima were red-shifted and the molar absorption coefficients in the visible range increased significantly, allowing the use of blue light (λ = 465 nm) for the E → Z isomerization and red light (λ = 600 nm) for the Z → E isomerization. N-Methylation of the pyrazole leads to an excellent thermal stability of the Z isomer.
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Affiliation(s)
- Julian Simke
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, D-48149 Münster, Germany
| | - Tom Bösking
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, D-48149 Münster, Germany
| | - Bart Jan Ravoo
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, D-48149 Münster, Germany
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206
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Monteiro DCF, Amoah E, Rogers C, Pearson AR. Using photocaging for fast time-resolved structural biology studies. Acta Crystallogr D Struct Biol 2021; 77:1218-1232. [PMID: 34605426 PMCID: PMC8489231 DOI: 10.1107/s2059798321008809] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 08/23/2021] [Indexed: 12/02/2022] Open
Abstract
Careful selection of photocaging approaches is critical to achieve fast and well synchronized reaction initiation and perform successful time-resolved structural biology experiments. This review summarizes the best characterized and most relevant photocaging groups previously described in the literature. It also provides a walkthrough of the essential factors to consider in designing a suitable photocaged molecule to address specific biological questions, focusing on photocaging groups with well characterized spectroscopic properties. The relationships between decay rates (k in s-1), quantum yields (ϕ) and molar extinction coefficients (ϵmax in M-1 cm-1) are highlighted for different groups. The effects of the nature of the photocaged group on these properties is also discussed. Four main photocaging scaffolds are presented in detail, o-nitrobenzyls, p-hydroxyphenyls, coumarinyls and nitrodibenzofuranyls, along with three examples of the use of this technology. Furthermore, a subset of specialty photocages are highlighted: photoacids, molecular photoswitches and metal-containing photocages. These extend the range of photocaging approaches by, for example, controlling pH or generating conformationally locked molecules.
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Affiliation(s)
- Diana C. F. Monteiro
- Hauptman–Woodward Medical Research Institute, 700 Ellicot Street, Buffalo, NY 14203, USA
| | - Emmanuel Amoah
- Hauptman–Woodward Medical Research Institute, 700 Ellicot Street, Buffalo, NY 14203, USA
| | - Cromarte Rogers
- The Hamburg Centre for Ultrafast Imaging, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
- Department of Chemistry, Universität Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Arwen R. Pearson
- The Hamburg Centre for Ultrafast Imaging, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
- Department of Physics, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
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207
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Broløs L, Klaue K, Bendix J, Grubert L, Hecht S, Nielsen MB. Stabilizing Indigo
Z
‐Isomer through Intramolecular Associations of Redox‐Active Appendages. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Line Broløs
- Department of Chemistry University of Copenhagen Universitetsparken 5 DK-2100 Copenhagen Ø Denmark
| | - Kristin Klaue
- Department of Chemistry & IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Jesper Bendix
- Department of Chemistry University of Copenhagen Universitetsparken 5 DK-2100 Copenhagen Ø Denmark
| | - Lutz Grubert
- Department of Chemistry & IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Stefan Hecht
- Department of Chemistry & IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
- DWI – Leibniz Institute for Interactive Materials Forckenbeckstr. 50 52074 Aachen Germany
- Institute of Technical and Macromolecular Chemistry RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
| | - Mogens Brøndsted Nielsen
- Department of Chemistry University of Copenhagen Universitetsparken 5 DK-2100 Copenhagen Ø Denmark
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208
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Babii O, Afonin S, Diel C, Huhn M, Dommermuth J, Schober T, Koniev S, Hrebonkin A, Nesterov‐Mueller A, Komarov IV, Ulrich AS. Diarylethene-Based Photoswitchable Inhibitors of Serine Proteases. Angew Chem Int Ed Engl 2021; 60:21789-21794. [PMID: 34268844 PMCID: PMC8519022 DOI: 10.1002/anie.202108847] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Indexed: 12/20/2022]
Abstract
A bicyclic peptide scaffold was chemically adapted to generate diarylethene-based photoswitchable inhibitors of serine protease Bos taurus trypsin 1 (T1). Starting from a prototype molecule-sunflower trypsin inhibitor-1 (SFTI-1)-we obtained light-controllable inhibitors of T1 with Ki in the low nanomolar range, whose activity could be modulated over 20-fold by irradiation. The inhibitory potency as well as resistance to proteolytic degradation were systematically studied on a series of 17 SFTI-1 analogues. The hydrogen bond network that stabilizes the structure of inhibitors and possibly the enzyme-inhibitor binding dynamics were affected by isomerization of the photoswitch. The feasibility of manipulating enzyme activity in time and space was demonstrated by controlled digestion of gelatin-based hydrogel and an antimicrobial peptide BP100-RW. Finally, our design principles of diarylethene photoswitches are shown to apply also for the development of other serine protease inhibitors.
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Affiliation(s)
- Oleg Babii
- Institute of Biological Interfaces (IBG-2)Karlsruhe Institute of Technology (KIT)POB 364076021KarlsruheGermany
- Institute of Microstructure Technology (IMT)KITHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Sergii Afonin
- Institute of Biological Interfaces (IBG-2)Karlsruhe Institute of Technology (KIT)POB 364076021KarlsruheGermany
| | - Christian Diel
- Institute of Organic Chemistry (IOC)KITFritz-Haber-Weg 676131KarlsruheGermany
| | - Marcel Huhn
- Institute of Organic Chemistry (IOC)KITFritz-Haber-Weg 676131KarlsruheGermany
| | - Jennifer Dommermuth
- Institute of Organic Chemistry (IOC)KITFritz-Haber-Weg 676131KarlsruheGermany
| | - Tim Schober
- Institute of Organic Chemistry (IOC)KITFritz-Haber-Weg 676131KarlsruheGermany
- Lumobiotics GmbHAuer Straße 276227KarlsruheGermany
| | - Serhii Koniev
- Taras Shevchenko National University of Kyivvul. Volodymyrska 601601KyivUkraine
| | - Andrii Hrebonkin
- Institute of Biological Interfaces (IBG-2)Karlsruhe Institute of Technology (KIT)POB 364076021KarlsruheGermany
| | - Alexander Nesterov‐Mueller
- Institute of Microstructure Technology (IMT)KITHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Igor V. Komarov
- Taras Shevchenko National University of Kyivvul. Volodymyrska 601601KyivUkraine
- Lumobiotics GmbHAuer Straße 276227KarlsruheGermany
| | - Anne S. Ulrich
- Institute of Biological Interfaces (IBG-2)Karlsruhe Institute of Technology (KIT)POB 364076021KarlsruheGermany
- Institute of Organic Chemistry (IOC)KITFritz-Haber-Weg 676131KarlsruheGermany
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209
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Babii O, Afonin S, Diel C, Huhn M, Dommermuth J, Schober T, Koniev S, Hrebonkin A, Nesterov‐Mueller A, Komarov IV, Ulrich AS. Diarylethen‐basierte lichtschaltbare Inhibitoren von Serinproteasen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Oleg Babii
- Institute of Biological Interfaces (IBG-2) Karlsruhe Institute of Technology (KIT) POB 3640 76021 Karlsruhe Deutschland
- Institute of Microstructure Technology (IMT) KIT Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
| | - Sergii Afonin
- Institute of Biological Interfaces (IBG-2) Karlsruhe Institute of Technology (KIT) POB 3640 76021 Karlsruhe Deutschland
| | - Christian Diel
- Institute of Organic Chemistry (IOC) KIT Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
| | - Marcel Huhn
- Institute of Organic Chemistry (IOC) KIT Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
| | - Jennifer Dommermuth
- Institute of Organic Chemistry (IOC) KIT Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
| | - Tim Schober
- Institute of Organic Chemistry (IOC) KIT Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
- Lumobiotics GmbH Auer Straße 2 76227 Karlsruhe Deutschland
| | - Serhii Koniev
- Taras Shevchenko National University of Kyiv vul. Volodymyrska 60 1601 Kyiv Ukraine
| | - Andrii Hrebonkin
- Institute of Biological Interfaces (IBG-2) Karlsruhe Institute of Technology (KIT) POB 3640 76021 Karlsruhe Deutschland
| | - Alexander Nesterov‐Mueller
- Institute of Microstructure Technology (IMT) KIT Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
| | - Igor V. Komarov
- Taras Shevchenko National University of Kyiv vul. Volodymyrska 60 1601 Kyiv Ukraine
- Lumobiotics GmbH Auer Straße 2 76227 Karlsruhe Deutschland
| | - Anne S. Ulrich
- Institute of Biological Interfaces (IBG-2) Karlsruhe Institute of Technology (KIT) POB 3640 76021 Karlsruhe Deutschland
- Institute of Organic Chemistry (IOC) KIT Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
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210
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Lechner VM, Nappi M, Deneny PJ, Folliet S, Chu JCK, Gaunt MJ. Visible-Light-Mediated Modification and Manipulation of Biomacromolecules. Chem Rev 2021; 122:1752-1829. [PMID: 34546740 DOI: 10.1021/acs.chemrev.1c00357] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Chemically modified biomacromolecules-i.e., proteins, nucleic acids, glycans, and lipids-have become crucial tools in chemical biology. They are extensively used not only to elucidate cellular processes but also in industrial applications, particularly in the context of biopharmaceuticals. In order to enable maximum scope for optimization, it is pivotal to have a diverse array of biomacromolecule modification methods at one's disposal. Chemistry has driven many significant advances in this area, and especially recently, numerous novel visible-light-induced photochemical approaches have emerged. In these reactions, light serves as an external source of energy, enabling access to highly reactive intermediates under exceedingly mild conditions and with exquisite spatiotemporal control. While UV-induced transformations on biomacromolecules date back decades, visible light has the unmistakable advantage of being considerably more biocompatible, and a spectrum of visible-light-driven methods is now available, chiefly for proteins and nucleic acids. This review will discuss modifications of native functional groups (FGs), including functionalization, labeling, and cross-linking techniques as well as the utility of oxidative degradation mediated by photochemically generated reactive oxygen species. Furthermore, transformations at non-native, bioorthogonal FGs on biomacromolecules will be addressed, including photoclick chemistry and DNA-encoded library synthesis as well as methods that allow manipulation of the activity of a biomacromolecule.
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Affiliation(s)
- Vivian M Lechner
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Manuel Nappi
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Patrick J Deneny
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Sarah Folliet
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - John C K Chu
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Matthew J Gaunt
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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211
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Tombari RJ, Tuck JR, Yardeny N, Gingrich PW, Tantillo DJ, Olson DE. Calculated oxidation potentials predict reactivity in Baeyer-Mills reactions. Org Biomol Chem 2021; 19:7575-7580. [PMID: 34524347 PMCID: PMC8462971 DOI: 10.1039/d1ob01450a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Azobenzenes are widely used as dyes and photochromic compounds, with the Baeyer-Mills reaction serving as the most common method for their preparation. This transformation is often plagued by low yields due to the formation of undesired azoxybenzene. Here, we explore electronic effects dictating the formation of the azoxybenzene side-product. Using calculated oxidation potentials, we were able to predict reaction outcomes and improve reaction efficiency simply by modulating the oxidation potential of the arylamine component.
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Affiliation(s)
- Robert J Tombari
- Department of Chemistry, University of California, Davis, Davis, CA 95616, USA.
| | - Jeremy R Tuck
- Department of Chemistry, University of California, Davis, Davis, CA 95616, USA.
| | - Noah Yardeny
- Department of Chemistry, University of California, Davis, Davis, CA 95616, USA.
| | - Phillip W Gingrich
- Department of Chemistry, University of California, Davis, Davis, CA 95616, USA.
| | - Dean J Tantillo
- Department of Chemistry, University of California, Davis, Davis, CA 95616, USA.
| | - David E Olson
- Department of Chemistry, University of California, Davis, Davis, CA 95616, USA.
- Department of Biochemistry & Molecular Medicine, School of Medicine, University of California, Davis, Sacramento, CA 95817, USA
- Center for Neuroscience, University of California, Davis, Davis, CA 95616, USA
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212
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Pfaff P, Anderl F, Fink M, Balkenhohl M, Carreira EM. Azoacetylenes for the Synthesis of Arylazotriazole Photoswitches. J Am Chem Soc 2021; 143:14495-14501. [PMID: 34478268 PMCID: PMC8447256 DOI: 10.1021/jacs.1c06014] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We report a modular approach toward novel arylazotriazole photoswitches and their photophysical characterization. Addition of lithiated TIPS-acetylene to aryldiazonium tetrafluoroborate salts gives a wide range of azoacetylenes, constituting an underexplored class of stable intermediates. In situ desilylation transiently leads to terminal arylazoacetylenes that undergo copper-catalyzed cycloadditions (CuAAC) with a diverse collection of organoazides. These include complex molecules derived from natural products or drugs, such as colchicine, taxol, tamiflu, and arachidonic acid. The arylazotriazoles display near-quantitative photoisomerization and long thermal Z-half-lives. Using the method, we introduce for the first time the design and synthesis of a diacetylene platform. It permits implementation of consecutive and diversity-oriented approaches linking two different conjugants to independently addressable acetylenes within a common photoswitchable azotriazole. This is showcased in the synthesis of several photoswitchable conjugates, with potential applications as photoPROTACs and biotin conjugates.
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213
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Scherbakov AM, Balakhonov RY, Salnikova DI, Sorokin DV, Yadykov AV, Markosyan AI, Shirinian VZ. Light-driven photoswitching of quinazoline analogues of combretastatin A-4 as an effective approach for targeting skin cancer cells. Org Biomol Chem 2021; 19:7670-7677. [PMID: 34524348 DOI: 10.1039/d1ob01362a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A novel quinazoline series of photoswitchable combretastatin A-4 (CA-4) analogues were synthesized and their photochemical properties and antiproliferative activity against A431 epidermoid carcinoma cells were studied. It was found that quinazoline analogues, in contrast to the majority of the known CA-4, exhibit high antiproliferative activity in the E-form as well. Photoswitching of the E-form to the Z-form resulted in a multiple (9-fold) increase in antiproliferative activity. 1H NMR monitoring showed that these compounds are very resistant to UV (λ = 365 nm) or sunlight irradiation and do not undergo photodegradation with a loss of antiproliferative activity that is inherent in heterocyclic analogues of CA-4. Similar photoswitching and an increase in antiproliferative activity are observed on exposure to sunlight. A selected compound (1a-Z51) in sub-micromolar concentrations induced apoptosis in A431 cells, while rad50/ATM/p53 were not involved in cell death. The growth of A431 cells was significantly inhibited after combination treatment with compound 1a-Z51 and chemotherapy drugs (cisplatin or 5-fluorouracil). In summary, the quinazoline analogues of CA-4 represent a promising strategy to achieve a photoswitchable potency for the treatment of cancers, including the development of combination therapies.
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Affiliation(s)
- A M Scherbakov
- Department of Experimental Tumor Biology, Blokhin N.N. National Medical Research Center of Oncology, Kashirskoye sh. 24, Moscow 115522, Russian Federation
| | - R Yu Balakhonov
- N. D. Zelinsky Institute of Organic Chemistry, RAS, Moscow, Russian Federation.
| | - D I Salnikova
- Department of Experimental Tumor Biology, Blokhin N.N. National Medical Research Center of Oncology, Kashirskoye sh. 24, Moscow 115522, Russian Federation
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - D V Sorokin
- Department of Experimental Tumor Biology, Blokhin N.N. National Medical Research Center of Oncology, Kashirskoye sh. 24, Moscow 115522, Russian Federation
| | - A V Yadykov
- N. D. Zelinsky Institute of Organic Chemistry, RAS, Moscow, Russian Federation.
| | - A I Markosyan
- Scientific Technological Center of Organic and Pharmaceutical Chemistry, NAS RA, Yerevan, Armenia
| | - V Z Shirinian
- N. D. Zelinsky Institute of Organic Chemistry, RAS, Moscow, Russian Federation.
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214
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Just‐Baringo X, Yeste‐Vázquez A, Moreno‐Morales J, Ballesté‐Delpierre C, Vila J, Giralt E. Controlling Antibacterial Activity Exclusively with Visible Light: Introducing a Tetra-ortho-Chloro-Azobenzene Amino Acid. Chemistry 2021; 27:12987-12991. [PMID: 34227716 PMCID: PMC8518743 DOI: 10.1002/chem.202102370] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Indexed: 11/30/2022]
Abstract
The introduction of a novel tetra-ortho-chloroazobenzene amino acid (CEBA) has enabled photoswitching of the antimicrobial activity of tyrocidine A analogues by using exclusively visible light, granting spatiotemporal control under benign conditions. Compounds bearing this photoswitchable amino acid become active upon irradiation with red light, but quickly turn-off upon exposure to other visible light wavelengths. Critically, sunlight quickly triggers isomerisation of the red light-activated compounds into their original trans form, offering an ideal platform for self-deactivation upon release into the environment. Linear analogues of tyrocidine A were found to provide the best photocontrol of their antimicrobial activity, leading to compounds active against Acinetobacter baumannii upon isomerisation. Exploration of their N- and C-termini has provided insights into key elements of their structure and has allowed obtaining new antimicrobials displaying excellent strain selectivity and photocontrol.
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Affiliation(s)
- Xavier Just‐Baringo
- Institute for Research in Biomedicine (IRB Barcelona)Barcelona Institute of Science and Technology (BIST)Baldiri Reixac 1008028BarcelonaSpain
- Laboratori de Química OrgànicaFacultat de FarmàciaIBUBUniversitat de Barcelona08028BarcelonaSpain
| | - Alejandro Yeste‐Vázquez
- Institute for Research in Biomedicine (IRB Barcelona)Barcelona Institute of Science and Technology (BIST)Baldiri Reixac 1008028BarcelonaSpain
| | - Javier Moreno‐Morales
- Institute for Global Health (ISGlobal)Hospital Clínic - Universitat de BarcelonaBarcelonaSpain
| | | | - Jordi Vila
- Institute for Global Health (ISGlobal)Hospital Clínic - Universitat de BarcelonaBarcelonaSpain
- Department of Clinical Microbiology – CDBHospital Clínic - University of BarcelonaBarcelonaSpain
| | - Ernest Giralt
- Institute for Research in Biomedicine (IRB Barcelona)Barcelona Institute of Science and Technology (BIST)Baldiri Reixac 1008028BarcelonaSpain
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215
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Biscussi B, Sequeira MA, Richmond V, Arroyo Mañez P, Murray AP. New photochromic azoderivatives with potent acetylcholinesterase inhibition. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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216
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Wang GA, Xu J, Traynor SM, Chen H, Eljabu F, Wu X, Yan H, Li F. DNA Balance for Native Characterization of Chemically Modified DNA. J Am Chem Soc 2021; 143:13655-13663. [PMID: 34404208 DOI: 10.1021/jacs.1c05236] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Chemical modification is a powerful approach to expand the chemical diversity and functionality of natural DNA. However, when chemically modified oligonucleotides are employed in DNA-based reactions or structures, it becomes quite difficult to predict, understand, and control their kinetics and thermodynamics. To address this challenge, we introduce a rationally designed DNA balance capable of measuring critical thermodynamic and kinetic properties of chemically modified DNA in their native environment. Our DNA balance is operated using the principle of toehold-exchange, where a panel of weight probes were designed by tuning the lengths of forward and reverse toeholds. Once placed on the DNA balance, the chemical modification will be interrogated using the weight probes to determine changes in both Gibbs free energy and hybridization rate constant. Using cyclic-azobenzene (cAB)-modified DNA as a model system, we demonstrated that our DNA balance could not only measure stable chemical modifications, but also solve more challenging issues where unstable chemical modifications and transient isomerization reactions were involved. We anticipate that our DNA balance will find wide uses for measuring important thermodynamic and kinetic parameters for DNA carrying various chemical modifications, as well as for probing transient chemical changes in DNA.
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Affiliation(s)
- Guan Alex Wang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China.,Department of Chemistry, Centre for Biotechnology, Brock University, St. Catharines, Ontario L2S 3A1, Canada
| | - Junpeng Xu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China.,Department of Chemistry, Centre for Biotechnology, Brock University, St. Catharines, Ontario L2S 3A1, Canada
| | - Sarah M Traynor
- Department of Chemistry, Centre for Biotechnology, Brock University, St. Catharines, Ontario L2S 3A1, Canada
| | - Haodi Chen
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Fatma Eljabu
- Department of Chemistry, Centre for Biotechnology, Brock University, St. Catharines, Ontario L2S 3A1, Canada
| | - Xinghong Wu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Hongbin Yan
- Department of Chemistry, Centre for Biotechnology, Brock University, St. Catharines, Ontario L2S 3A1, Canada
| | - Feng Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China.,Department of Chemistry, Centre for Biotechnology, Brock University, St. Catharines, Ontario L2S 3A1, Canada
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217
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Le Bescont J, Mouawad L, Boddaert T, Bombard S, Piguel S. Photoactivatable Small‐Molecule Inhibitors for Light‐Controlled TAM Kinase Activity. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Julie Le Bescont
- Institut Curie Université PSL CNRS UMR 9187 INSERM U1196 Chimie et Modélisation pour la Biologie du Cancer 91405 Orsay France
- Université Paris-Saclay CNRS UMR 9187 INSERM U1196 Chimie et Modélisation pour la Biologie du Cancer 91405 Orsay France
| | - Liliane Mouawad
- Institut Curie Université PSL CNRS UMR 9187 INSERM U1196 Chimie et Modélisation pour la Biologie du Cancer 91405 Orsay France
- Université Paris-Saclay CNRS UMR 9187 INSERM U1196 Chimie et Modélisation pour la Biologie du Cancer 91405 Orsay France
| | - Thomas Boddaert
- Université Paris-Saclay CNRS UMR 8182 ICMMO CP3A Organic Synthesis Group 91405 Orsay France
| | - Sophie Bombard
- Institut Curie Université PSL CNRS UMR 9187 INSERM U1196 Chimie et Modélisation pour la Biologie du Cancer 91405 Orsay France
- Université Paris-Saclay CNRS UMR 9187 INSERM U1196 Chimie et Modélisation pour la Biologie du Cancer 91405 Orsay France
| | - Sandrine Piguel
- Institut Curie Université PSL CNRS UMR 9187 INSERM U1196 Chimie et Modélisation pour la Biologie du Cancer 91405 Orsay France
- Université Paris-Saclay CNRS UMR 9187 INSERM U1196 Chimie et Modélisation pour la Biologie du Cancer 91405 Orsay France
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218
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Lee SJ, Kim Y, Kim TW, Yang C, Thamilselvan K, Jeong H, Hyun J, Ihee H. Reversible molecular motional switch based on circular photoactive protein oligomers exhibits unexpected photo-induced contraction. CELL REPORTS. PHYSICAL SCIENCE 2021; 2:100512. [PMID: 35509376 PMCID: PMC9062587 DOI: 10.1016/j.xcrp.2021.100512] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Molecular switches alterable between two stable states by environmental stimuli, such as light and temperature, offer the potential for controlling biological functions. Here, we report a circular photoswitchable protein complex made of multiple protein molecules that can rapidly and reversibly switch with significant conformational changes. The structural and photochromic properties of photoactive yellow protein (PYP) are harnessed to construct circular oligomer PYPs (coPYPs) of desired sizes. Considering the light-induced N-terminal protrusion of monomer PYP, we expected coPYPs would expand upon irradiation, but time-resolved X-ray scattering data reveal that the late intermediate has a pronounced light-induced contraction motion. This work not only provides an approach to engineering a novel protein-based molecular switch based on circular oligomers of well-known protein units but also demonstrates the importance of characterizing the structural dynamics of designed molecular switches.
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Affiliation(s)
- Sang Jin Lee
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- These authors contributed equally
| | - Youngmin Kim
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- These authors contributed equally
| | - Tae Wu Kim
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Cheolhee Yang
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Kamatchi Thamilselvan
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Hyeongseop Jeong
- Center for Research Equipment, Korea Basic Science Institute (KBSI), Cheongju-si, Chungcheongbuk-do 28119, Republic of Korea
| | - Jaekyung Hyun
- Center for Research Equipment, Korea Basic Science Institute (KBSI), Cheongju-si, Chungcheongbuk-do 28119, Republic of Korea
- Molecular Cryo-Electron Microscopy Unit, Okinawa Institute of Science and Technology (OIST), Okinawa 904-0495, Japan
| | - Hyotcherl Ihee
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Lead contact
- Correspondence:
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219
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Mukhopadhyay A, Jindal S, Maka VK, Moorthy JN. Contrasting Photochromic and Acidochromic Behaviors of Pyridyl- and Pyrimidylethynylated Mono- and Bis-Benzopyrans. ACS OMEGA 2021; 6:21113-21124. [PMID: 34423219 PMCID: PMC8375091 DOI: 10.1021/acsomega.1c02948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 07/20/2021] [Indexed: 05/04/2023]
Abstract
Investigation of photochromic and acidochromic behaviors of a set of pyridyl- and pyrimidylethynylated mono- and bis-benzopyrans reveals an intriguing influence of the N-heteroaryl ring on spectrokinetic properties of the photogenerated o-quinonoid colored reactive intermediates. While the absorption maxima of the pyridylethynylated bis-benzopyran and its photogenerated o-quinonoid colored species undergo bathochromic shifts by ca. 40 and 22 nm, respectively, in the presence of an acid (e.g., trifluoroacetic acid (TFA)), the same remain unaffected for the analogous pyrimidylethynylated bis-benzopyran and its photogenerated o-quinonoid colored species under similar conditions. Modification of the photochromic behavior of these benzopyrans and, hence, spectrokinetic properties of their photogenerated o-quinonoid species in the presence of H+ is a consequence of relative proton affinities of N-heteroaryl rings, i.e., pyridyl/pyrimidyl, and the resonance effects relayed through the ethynyl spacers in a push-pull π-delocalized-type skeleton; the mesomeric effects operate in a contrasting manner depending on the N-heteroaryl ring in the absence and in the presence of an acid. These molecular systems offer a unique opportunity to modulate both photochromic and acidochromic properties of benzopyrans and their photogenerated colored o-quinonoid intermediates by leveraging N-heteroaromatic rings.
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Affiliation(s)
| | - Swati Jindal
- Department
of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Vijay Kumar Maka
- Department
of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Jarugu Narasimha Moorthy
- Department
of Chemistry, Indian Institute of Technology, Kanpur 208016, India
- School
of Chemistry, Indian Institute of Science
Education and Research, Thiruvananthapuram 695551, India
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220
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Boulanger SA, Chen C, Tang L, Zhu L, Baleeva NS, Myasnyanko IN, Baranov MS, Fang C. Shedding light on ultrafast ring-twisting pathways of halogenated GFP chromophores from the excited to ground state. Phys Chem Chem Phys 2021; 23:14636-14648. [PMID: 34212170 DOI: 10.1039/d1cp02140k] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Since green fluorescent protein (GFP) has revolutionized molecular and cellular biology for about three decades, there has been a keen interest in understanding, designing, and controlling the fluorescence properties of GFP chromophore (i.e., HBDI) derivatives from the protein matrix to solution. Amongst these cross-disciplinary efforts, the elucidation of excited-state dynamics of HBDI derivatives holds the key to correlating the light-induced processes and fluorescence quantum yield (FQY). Herein, we implement steady-state electronic spectroscopy, femtosecond transient absorption (fs-TA), femtosecond stimulated Raman spectroscopy (FSRS), and quantum calculations to study a series of mono- and dihalogenated HBDI derivatives (X = F, Cl, Br, 2F, 2Cl, and 2Br) in basic aqueous solution, gaining new insights into the photophysical reaction coordinates. In the excited state, the halogenated "floppy" chromophores exhibit an anti-heavy atom effect, reflected by strong correlations between FQY vs. Franck-Condon energy (EFC) or Stokes shift, and knrvs. EFC, as well as a swift bifurcation into the I-ring (major) and P-ring (minor) twisting motions. In the ground state, both ring-twisting motions become more susceptible to sterics and exhibit spectral signatures from the halogen-dependent hot ground-state absorption band decay in TA data. We envision this type of systematic analysis of the halogenated HBDI derivatives to provide guiding principles for the site-specific modification of GFP chromophores, and expand design space for brighter and potentially photoswitchable organic chemical probes in aqueous solution with discernible spectral signatures throughout the photocycle.
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Affiliation(s)
- Sean A Boulanger
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331-4003, USA.
| | - Cheng Chen
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331-4003, USA.
| | - Longteng Tang
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331-4003, USA.
| | - Liangdong Zhu
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331-4003, USA.
| | - Nadezhda S Baleeva
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia and Pirogov Russian National Research Medical University, Ostrovitianov 1, Moscow 117997, Russia
| | - Ivan N Myasnyanko
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia and Pirogov Russian National Research Medical University, Ostrovitianov 1, Moscow 117997, Russia
| | - Mikhail S Baranov
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia and Pirogov Russian National Research Medical University, Ostrovitianov 1, Moscow 117997, Russia
| | - Chong Fang
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331-4003, USA.
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221
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Titov E, Sharma A, Lomadze N, Saalfrank P, Santer S, Bekir M. Photoisomerization of an Azobenzene‐Containing Surfactant Within a Micelle. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100103] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Evgenii Titov
- Theoretical Chemistry Institute of Chemistry University of Potsdam Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
| | - Anjali Sharma
- Experimental Physics Institute of Physics and Astronomy University of Potsdam Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
| | - Nino Lomadze
- Experimental Physics Institute of Physics and Astronomy University of Potsdam Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
| | - Peter Saalfrank
- Theoretical Chemistry Institute of Chemistry University of Potsdam Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
| | - Svetlana Santer
- Experimental Physics Institute of Physics and Astronomy University of Potsdam Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
| | - Marek Bekir
- Experimental Physics Institute of Physics and Astronomy University of Potsdam Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
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222
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Khan MN, Parmar DK, Das D. Recent Applications of Azo Dyes: A Paradigm Shift from Medicinal Chemistry to Biomedical Sciences. Mini Rev Med Chem 2021; 21:1071-1084. [PMID: 33231147 DOI: 10.2174/1389557520999201123210025] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/18/2020] [Accepted: 08/20/2020] [Indexed: 11/22/2022]
Abstract
Azo molecules possess the characteristic azo bond (-N=N-) and are considered fascinating motifs in organic chemistry. Since the last century, these brightly colored compounds have been widely employed as dyes across several industries in applications for printing, food, paper, cosmetics, lasers, electronics, optics, material sciences, etc. The discovery of Prontosil, an antibacterial drug, propelled azo compounds into the limelight in the field of medicinal chemistry. Subsequent discoveries including Phenazopyridine, Basalazide, and Sulfasalazine enabled azo compounds to occupy a significant role in the drug market. Furthermore, azo compounds have been employed as antibacterial, antimalarial, antifungal, antioxidant, as well as antiviral agents. The metabolic degradation of many azo dyes can induce liver problems if ingested, posing a safety concern and limiting their application as azo dyes in medicinal chemistry. However, azo dyes remain particularly significant for applications in cancer chemotherapy. Recently, a paradigm shift has been observed in the use of azo dyes: from medicinal chemistry to biomedical sciences. The latter benefits from azo dye application are related to imaging, drug delivery, photo-pharmacology and photo switching. Herein, we have compiled and discussed recent works on azo dye compounds obtained so far, focusing on their medicinal importance and future prospects.
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Affiliation(s)
- Md Nasim Khan
- Department of Chemistry, RK University, Rajkot, Gujrat-360020, India
| | - Digvijaysinh K Parmar
- Department of Chemistry, Education Hub, Kevdi, Diu college, DHES, Diu (U.T.) - 362520, India
| | - Debasis Das
- Discovery Chemistry Research, ArromaxPharmatech Co. Ltd. Sangtian Island Innovation Park, No. 1 Huayun Road, Suzhou 215123, China
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223
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Matsuo K, Tamaoki N. Rational design and development of a lit-active photoswitchable inhibitor targeting CENP-E. Org Biomol Chem 2021; 19:6979-6984. [PMID: 34346473 DOI: 10.1039/d1ob01332g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the emerging field of photopharmacology, synthetic photoswitches based on reversible photochemical reactions are fused to bioactive molecules. Azobenzene derivatives, which can undergo trans-cis photoisomerization, are typical photoswitches. Most azobenzene-based photochemical tools are active in the thermodynamically stable trans, but not cis, form. cis-Active photochemical tools would be ideal because they can be "initially inactive and active after light illumination" in a reversible mode only by light illumination. However, only a few rational strategies for constructing such "lit-active" photopharmacological tools has been developed. Herein, we report a rationally designed lit-active photoswitchable inhibitor targeting centromere-associated protein E (CENP-E). Using the lit-active inhibitor, we were able to photoregulate CENP-E-dependent mitotic chromosome location in cells. This study provides a framework to facilitate further progress in the development of photopharmacological tools.
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Affiliation(s)
- Kazuya Matsuo
- Research Institute for Electronic Science, Hokkaido University, Kita 20, Nishi 10, Kita-ku, Sapporo, 001-0020, Japan.
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224
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Saint-Louis CJ, Warner DJ, Keane KS, Kelley MD, Meyers CM, Blackstock SC. Photo-Electroswitchable Arylaminoazobenzenes. J Org Chem 2021; 86:11341-11353. [PMID: 34343429 DOI: 10.1021/acs.joc.1c00763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Azobenzenes appended with a redox-active arylamino group (redox auxiliary, RA) are prepared and shown to undergo fast, complete, and catalytic Z→E azo isomerization upon electron loss from the RA unit of the azobenzene. The RA-azo structures can be reversibly (E→Z→E)n cycled by sequential photo- and electrostimulation. Due to the robust nature of the RA•+-azo radical cation chain carrying species, initiation of electron transfer (ET) catalysis occurs at low levels (1.0-0.04 mol %) of catalytic loading and is effective even at Z-RA-azo concentrations of 10-4-10-5 M, yielding TONs (turnover numbers) of 100-2300 under such dilute conditions. The RA-azo Z→E conversion is demonstrated using chemical oxidation (redox switching), electrochemical oxidation (electro switching), and photochemical oxidation (photoredox switching). The Z→E acceleration is shown to be at least 2 × 109-fold for RA-azo 5. DFT calculations on methyl yellow suggest that a N-centered radical cation of the RA group stabilizes the Z→E N-N twist transition state of the RA•+-azo, yielding a large reduction in the barrier for RA•+-azo compared to neutral RA-azo. The RA-azo structure class has nanomechanical features that can be toggled with photo- and electrostimulation, the latter offering a quick switch for complete Z→E conversion.
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Affiliation(s)
- Carl Jacky Saint-Louis
- Department of Chemistry & Biochemistry, Kennesaw State University, Kennesaw, Georgia 30144, United States
| | - David J Warner
- Department of Chemistry & Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Katie S Keane
- Department of Chemistry & Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Melody D Kelley
- Department of Physical Science, Perimeter College at Georgia State University, Atlanta, Georgia 30303, United States
| | - Connor M Meyers
- Department of Chemistry & Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Silas C Blackstock
- Department of Chemistry & Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
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225
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Xu Z, Malik AU, Shu M, Cui Y. Instant Photochromism Caused by Radical Formation in Photocatalytic Decarboxylation of Dihydrothiazole Derivative
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Zhen Xu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 200240 China
| | - Abaid Ullah Malik
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 200240 China
| | - Mouhai Shu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 200240 China
| | - Yong Cui
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 200240 China
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226
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Saeki Y, Kayanuma M, Nitta A, Shigeta Y, Kawamura I, Nakagawa T, Ubukata T, Yokoyama Y. On-Demand Chirality Transfer of Human Serum Albumin to Bis(thiophen-2-yl)hexafluorocyclopentenes through Their Photochromic Ring Closure. J Org Chem 2021; 86:12549-12558. [PMID: 34324316 DOI: 10.1021/acs.joc.1c00849] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photochromic 1,2-bis(5-carboxy-3-methyl-2-thienyl)hexafluorocyclopentene and its dimethyl ester incorporated in human serum albumin (HSA) showed highly enantioselective photochromic ring-closing reactions upon 366 nm light irradiation. The absolute stereochemistry of the major ring-closed form of the dicarboxylic acid at the newly formed sp3 carbon atoms was determined to be (S,S) by the process of docking simulation of the diarylethene molecule and HSA followed by molecular dynamics calculations and comparison of the measured and calculated CD spectra. Esterification of the major closed form of the diacid gave the minor closed form of the diester. The absolute stereochemistry of the major diester was thus determined to be (R,R).
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Affiliation(s)
- Yuri Saeki
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama 240-8501, Japan
| | - Megumi Kayanuma
- Research Center for Computational Design of Advanced Functional Materials, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba 305-8568, Japan
| | - Aki Nitta
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama 240-8501, Japan
| | - Yasuteru Shigeta
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
| | - Izuru Kawamura
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama 240-8501, Japan
| | - Tetsuya Nakagawa
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama 240-8501, Japan
| | - Takashi Ubukata
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama 240-8501, Japan
| | - Yasushi Yokoyama
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama 240-8501, Japan
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227
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Wells PK, Smutok O, Melman A, Katz E. Switchable Biocatalytic Reactions Controlled by Interfacial pH Changes Produced by Orthogonal Biocatalytic Processes. ACS APPLIED MATERIALS & INTERFACES 2021; 13:33830-33839. [PMID: 34264645 DOI: 10.1021/acsami.1c07393] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Enzymes immobilized on a nano-structured surface were used to switch the activity of one enzyme by a local pH change produced by another enzyme. Immobilized amyloglucosidase (AMG) and trypsin were studied as examples of the pH-dependent switchable "target enzymes." The reactions catalyzed by co-immobilized urease or esterase were increasing or decreasing the local pH, respectively, thus operating as "actuator enzymes." Both kinds of the enzymes, producing local pH changes and changing biocatalytic activity with the pH variation, were orthogonal in terms of the biocatalytic reactions; however, their operation was coupled with the local pH produced near the surface with the immobilized enzymes. The "target enzymes" (AMG and trypsin) were changed reversibly between the active and inactive states by applying input signals (urea or ester, substrates for the urease or esterase operating as the "actuator enzymes") and washing them out with a new portion of the background solution. The developed approach can potentially lead to switchable operation of several enzymes, while some of them are inhibited when the others are activated upon receiving external signals processed by the "actuator enzymes." More complex systems with branched biocatalytic cascades can be controlled by orthogonal biocatalytic reactions activating selected pathways and changing the final output.
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Affiliation(s)
- Paulina K Wells
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699, United States
| | - Oleh Smutok
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699, United States
| | - Artem Melman
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699, United States
| | - Evgeny Katz
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699, United States
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228
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Strizhak AV, Babii O, Afonin S, Bakanovich I, Pantelejevs T, Xu W, Fowler E, Eapen R, Sharma K, Platonov MO, Hurmach VV, Itzhaki L, Hyvönen M, Ulrich AS, Spring DR, Komarov IV. Diarylethene moiety as an enthalpy-entropy switch: photoisomerizable stapled peptides for modulating p53/MDM2 interaction. Org Biomol Chem 2021; 18:5359-5369. [PMID: 32390036 DOI: 10.1039/d0ob00831a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Analogs of the known inhibitor (peptide pDI) of the p53/MDM2 protein-protein interaction are reported, which are stapled by linkers bearing a photoisomerizable diarylethene moiety. The corresponding photoisomers possess significantly different affinities to the p53-interacting domain of the human MDM2. Apparent dissociation constants are in the picomolar-to-low nanomolar range for those isomers with diarylethene in the "open" configuration, but up to eight times larger for the corresponding "closed" isomers. Spectroscopic, structural, and computational studies showed that the stapling linkers of the peptides contribute to their binding. Calorimetry revealed that the binding of the "closed" isomers is mostly enthalpy-driven, whereas the "open" photoforms bind to the protein stronger due to their increased binding entropy. The results suggest that conformational dynamics of the protein-peptide complexes may explain the differences in the thermodynamic profiles of the binding.
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Affiliation(s)
- Alexander V Strizhak
- University Chemical Laboratory, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, UK. and Enamine Ltd, Vul. Chervonotkatska 78, 02094 Kyiv, Ukraine
| | - Oleg Babii
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology (KIT), POB 3640, 76021 Karlsruhe, Germany.
| | - Sergii Afonin
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology (KIT), POB 3640, 76021 Karlsruhe, Germany.
| | - Iuliia Bakanovich
- University Chemical Laboratory, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, UK. and Enamine Ltd, Vul. Chervonotkatska 78, 02094 Kyiv, Ukraine
| | - Teodors Pantelejevs
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, CB2 1GA Cambridge, UK
| | - Wenshu Xu
- University Chemical Laboratory, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, UK.
| | - Elaine Fowler
- University Chemical Laboratory, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, UK.
| | - Rohan Eapen
- Department of Pharmacology, University of Cambridge, Tennis Court Road, CB2 1PD Cambridge, UK
| | - Krishna Sharma
- University Chemical Laboratory, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, UK.
| | | | - Vasyl V Hurmach
- Enamine Ltd, Vul. Chervonotkatska 78, 02094 Kyiv, Ukraine and Taras Shevchenko National University of Kyiv, Vul. Volodymyrska 60, 01601 Kyiv, Ukraine
| | - Laura Itzhaki
- Department of Pharmacology, University of Cambridge, Tennis Court Road, CB2 1PD Cambridge, UK
| | - Marko Hyvönen
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, CB2 1GA Cambridge, UK
| | - Anne S Ulrich
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology (KIT), POB 3640, 76021 Karlsruhe, Germany. and Institute of Organic Chemistry (IOC), KIT, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| | - David R Spring
- University Chemical Laboratory, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, UK.
| | - Igor V Komarov
- Taras Shevchenko National University of Kyiv, Vul. Volodymyrska 60, 01601 Kyiv, Ukraine and Lumobiotics GmbH, Auer Str. 2, 76227, Karlsruhe, Germany.
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229
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A photoswitchable helical peptide with light-controllable interface/transmembrane topology in lipidic membranes. iScience 2021; 24:102771. [PMID: 34286233 PMCID: PMC8273423 DOI: 10.1016/j.isci.2021.102771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 06/02/2021] [Accepted: 06/19/2021] [Indexed: 11/21/2022] Open
Abstract
The spontaneous insertion of helical transmembrane (TM) polypeptides into lipid bilayers is driven by three sequential equilibria: solution-to-membrane interface (MI) partition, unstructured-to-helical folding, and MI-to-TM helix insertion. A bottleneck for understanding these three steps is the lack of experimental approaches to perturb membrane-bound hydrophobic polypeptides out of equilibrium rapidly and reversibly. Here, we report on a 24-residues-long hydrophobic α-helical polypeptide, covalently coupled to an azobenzene photoswitch (KCALP-azo), which displays a light-controllable TM/MI equilibrium in hydrated lipid bilayers. FTIR spectroscopy reveals that trans KCALP-azo folds as a TM α-helix (TM topology). After trans-to-cis photoisomerization of the azobenzene moiety with UV light (reversed with blue light), the helical structure of KCALP-azo is maintained, but its helix tilt increased from 32 ± 5° to 79 ± 8°, indication of a reversible TM-to-MI transition. Further analysis indicates that this transition is incomplete, with cis KCALP-azo existing in a ∼90% TM and ∼10% MI mixture. We present an α-helical transmembrane peptide modified with a molecular photoswitch The peptide exhibits reversible photocontrol of its membrane topology A fraction moves to the membrane interface with UV and inserts back with blue light This system will be useful to address the molecular mechanism for membrane insertion
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230
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Hu D, Chang X, Xu Y, Yu Q, Zhu Y. Light-Enabled Reversible Shape Transformation of Block Copolymer Particles. ACS Macro Lett 2021; 10:914-920. [PMID: 35549210 DOI: 10.1021/acsmacrolett.1c00356] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Confined self-assembly of block copolymers (BCPs) is effective to manipulate various shapes of particles. In emulsion confined self-assembly, reversibly light-trigged switchable BCP particles are extremely expected, yet rarely reported. Herein, a novel strategy is developed to realize reversibly light-responsive shape-transformation of BCP particles by constructing functional surfactants with light-active azobenzene (azo) groups in the confined self-assembly of BCPs within emulsion droplet. Ultraviolet and visible lights can reversibly modulate the amphiphilicity and interfacial affinity of the surfactants to different blocks, triggering the reversible microphase structure transformation of BCP particles with high temporal-spatial resolution. We can realize shape and morphological transitions of BCP particles from onion-shaped spherical particles to striped ellipsoids and, ultimately, to inverse onion-like particles by ultraviolet irradiation. More importantly, this shape transformation is reversible by the irradiation of visible light, attributed to the reversible trans-cis isomerization of azo groups. We also demonstrate that the light-triggered shape transformation of BCP particles can be employed in a controllable drug release through a noncontacted and programmed manner, showing promising potential in clinic and biomedicine.
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Affiliation(s)
- Dengwen Hu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 2318 Yuhangtang Rd., Cangqian, Yuhang District, Hangzhou 311121, China
| | - Xiaohua Chang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 2318 Yuhangtang Rd., Cangqian, Yuhang District, Hangzhou 311121, China
| | - Youquan Xu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 2318 Yuhangtang Rd., Cangqian, Yuhang District, Hangzhou 311121, China
| | - Qunli Yu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 2318 Yuhangtang Rd., Cangqian, Yuhang District, Hangzhou 311121, China
| | - Yutian Zhu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 2318 Yuhangtang Rd., Cangqian, Yuhang District, Hangzhou 311121, China
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231
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He Y, Shangguan Z, Zhang Z, Xie M, Yu C, Li T. Azobispyrazole Family as Photoswitches Combining (Near‐) Quantitative Bidirectional Isomerization and Widely Tunable Thermal Half‐Lives from Hours to Years**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103705] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yixin He
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory of Electrical Insulation and Thermal Aging Shanghai Jiao Tong University Shanghai 200240 China
| | - Zhichun Shangguan
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory of Electrical Insulation and Thermal Aging Shanghai Jiao Tong University Shanghai 200240 China
| | - Zhao‐Yang Zhang
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory of Electrical Insulation and Thermal Aging Shanghai Jiao Tong University Shanghai 200240 China
| | - Mingchen Xie
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory of Electrical Insulation and Thermal Aging Shanghai Jiao Tong University Shanghai 200240 China
| | - Chunyang Yu
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory of Electrical Insulation and Thermal Aging Shanghai Jiao Tong University Shanghai 200240 China
| | - Tao Li
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory of Electrical Insulation and Thermal Aging Shanghai Jiao Tong University Shanghai 200240 China
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232
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Abstract
Abstract
This article describes the defining characteristics of photochromic dyes and highlights the subset of properties that are of greatest commercial importance. It outlines the history of the industrial exploitation of photochromic colorants before moving on to discuss current and potential applications. In doing so, a brief tour of key types of photochromic dye is provided.
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233
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Preisz Z, Hartvig N, Bognár B, Kálai T, Kunsági-Máté S. Comparative EPR Study on the Scavenging Effect of Methotrexate with the Isomers of Its Photoswitchable Derivative. Pharmaceuticals (Basel) 2021; 14:ph14070665. [PMID: 34358091 PMCID: PMC8308517 DOI: 10.3390/ph14070665] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/05/2021] [Accepted: 07/07/2021] [Indexed: 12/12/2022] Open
Abstract
The scavenging effect of the antimetabolite dihydrofolate reductase inhibitor methotrexate (MTX) and the isomers of its photoswitchable derivate, cis- and trans-phototrexate (PHX), have been compared by ESR spectroscopy, with the application of a cyclic hydroxylamine spin probe. The results showed the most pronounced scavenging effect in the presence of trans-phototrexate (trans-PHX). At a low concentration (100 µM) cis-PHX also showed a greater scavenging effect than the parent molecule MTX. Direct antioxidant properties of the investigated molecules were measured by ABTS scavenging assay, which showed no significant difference between trans-PHX and cis-PHX, but both of the isomers of PHX showed a higher antioxidant capacity than MTX. These findings imply that trans-PHX may have more pronounced anti-inflammatory and tissue-protective effects than MTX, despite the lack of its cytotoxic, antineoplastic effect.
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Affiliation(s)
- Zsolt Preisz
- Institute of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Pécs, Szigeti 12, H-7624 Pécs, Hungary; (Z.P.); (B.B.); (T.K.)
- Department of General and Physical Chemistry, Faculty of Sciences, University of Pécs, Ifjúság 6, H-7624 Pécs, Hungary
| | - Nóra Hartvig
- János Szentágothai Research Center, University of Pécs, Ifjúság 20, H-7624 Pécs, Hungary;
| | - Balázs Bognár
- Institute of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Pécs, Szigeti 12, H-7624 Pécs, Hungary; (Z.P.); (B.B.); (T.K.)
| | - Tamás Kálai
- Institute of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Pécs, Szigeti 12, H-7624 Pécs, Hungary; (Z.P.); (B.B.); (T.K.)
- János Szentágothai Research Center, University of Pécs, Ifjúság 20, H-7624 Pécs, Hungary;
| | - Sándor Kunsági-Máté
- Institute of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Pécs, Szigeti 12, H-7624 Pécs, Hungary; (Z.P.); (B.B.); (T.K.)
- Department of General and Physical Chemistry, Faculty of Sciences, University of Pécs, Ifjúság 6, H-7624 Pécs, Hungary
- János Szentágothai Research Center, University of Pécs, Ifjúság 20, H-7624 Pécs, Hungary;
- Correspondence:
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234
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Lentes P, Rudtke J, Griebenow T, Herges R. Substituted nitrogen-bridged diazocines. Beilstein J Org Chem 2021; 17:1503-1508. [PMID: 34239618 PMCID: PMC8239257 DOI: 10.3762/bjoc.17.107] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 06/11/2021] [Indexed: 12/13/2022] Open
Abstract
Novel nitrogen-bridged diazocines (triazocines) were synthesized that carry a formyl or an acetyl group at the CH2NR-bridge and bromo- or iodo-substituents at the distant phenyl ring. The photophysical properties were investigated in acetonitrile and water. As compared to previous approaches the yields of the intramolecular azo cyclizations were increased (from ≈40 to 60%) using an oxidative approach starting from the corresponding aniline precursors. The Z→E photoconversion yields in acetonitrile are 80-85% and the thermal half-lives of the metastable E configurations are 31-74 min. Particularly, the high photoconversion yields (≈70%) of the water-soluble diazocines are noteworthy, which makes them promising candidates for applications in photopharmacology. The halogen substituents allow further functionalization via cross-coupling reactions.
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Affiliation(s)
- Pascal Lentes
- Otto Diels-Institute of Organic Chemistry, Christian Albrechts University Kiel, Otto-Hahn-Platz 4, 24118 Kiel, Germany
| | - Jeremy Rudtke
- Otto Diels-Institute of Organic Chemistry, Christian Albrechts University Kiel, Otto-Hahn-Platz 4, 24118 Kiel, Germany
| | - Thomas Griebenow
- Otto Diels-Institute of Organic Chemistry, Christian Albrechts University Kiel, Otto-Hahn-Platz 4, 24118 Kiel, Germany
| | - Rainer Herges
- Otto Diels-Institute of Organic Chemistry, Christian Albrechts University Kiel, Otto-Hahn-Platz 4, 24118 Kiel, Germany
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235
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Zheng C, Yu Y, Kuang S, Zhu B, Zhou H, Zhang SQ, Yang J, Shi L, Ran C. β-Amyloid Peptides Manipulate Switching Behaviors of Donor-Acceptor Stenhouse Adducts. Anal Chem 2021; 93:9887-9896. [PMID: 34235921 DOI: 10.1021/acs.analchem.1c01957] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Molecular switching plays a critical role in biological and displaying systems. Donor-acceptor Stenhouse adducts (DASAs) is a newly re-discovered series of switchable photochromes, and light is the most used approach to control its switching behavior. In this report, we speculated that hydrophobic binding pockets of biologically relevant peptides/proteins could be harnessed to alter its switching behavior without the assistance of light. We designed and synthesized a DASA compound SHA-2, and we demonstrated that the Aβ40 species could stabilize SHA-2 in the linear conformation and decrease the rate of molecular switching via fluorescence spectral studies. Moreover, molecular dynamics simulation revealed that SHA-2 could bind to the hydrophobic fragment of the peptide and resulted in substantial changes in the tertiary structure of Aβ40 monomer. This structural change is likely to impede the aggregation of Aβ40, as evidenced by the results from thioflavin T fluorescence and ProteoStat aggregation detection experiments. We believe that our study opens a new window to alter the switching behavior of DASA via DASA-peptide/protein interactions.
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Affiliation(s)
- Chao Zheng
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129, United States.,PET Center, Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, Connecticut 06520, United States
| | - Yue Yu
- Department of Chemistry and Chemical Biology, University of California, Merced, Merced, California 95343, United States
| | - Shi Kuang
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129, United States
| | - Biyue Zhu
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129, United States
| | - Heng Zhou
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129, United States
| | - Shao-Qing Zhang
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129, United States
| | - Jing Yang
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129, United States
| | - Liang Shi
- Department of Chemistry and Chemical Biology, University of California, Merced, Merced, California 95343, United States
| | - Chongzhao Ran
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129, United States
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236
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Simeth NA, Kobayashi S, Kobauri P, Crespi S, Szymanski W, Nakatani K, Dohno C, Feringa BL. Rational design of a photoswitchable DNA glue enabling high regulatory function and supramolecular chirality transfer. Chem Sci 2021; 12:9207-9220. [PMID: 34276952 PMCID: PMC8261765 DOI: 10.1039/d1sc02194j] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 05/22/2021] [Indexed: 01/02/2023] Open
Abstract
Short, complementary DNA single strands with mismatched base pairs cannot undergo spontaneous formation of duplex DNA (dsDNA). Mismatch binding ligands (MBLs) can compensate this effect, inducing the formation of the double helix and thereby acting as a molecular glue. Here, we present the rational design of photoswitchable MBLs that allow for reversible dsDNA assembly by light. Careful choice of the azobenzene core structure results in excellent band separation of the E and Z isomers of the involved chromophores. This effect allows for efficient use of light as an external control element for duplex DNA formation and for an in-depth study of the DNA-ligand interaction by UV-Vis, SPR, and CD spectroscopy, revealing a tight mutual interaction and complementarity between the photoswitchable ligand and the mismatched DNA. We also show that the configuration of the switch reversibly dictates the conformation of the DNA strands, while the dsDNA serves as a chiral clamp and translates its chiral information onto the ligand inducing a preference in helical chirality of the Z isomer of the MBLs.
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Affiliation(s)
- Nadja A Simeth
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Shotaro Kobayashi
- Department of Regulatory Bioorganic Chemistry, The Institute of Scientific and Industrial Research, Osaka University 8-1 Mihogaoka Ibaraki 567-0047 Japan
| | - Piermichele Kobauri
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Stefano Crespi
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Wiktor Szymanski
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
- Department of Radiology, Medical Imaging Center, University of Groningen, University Medical Centre Groningen Hanzeplein 1 9713 GZ Groningen The Netherlands
| | - Kazuhiko Nakatani
- Department of Regulatory Bioorganic Chemistry, The Institute of Scientific and Industrial Research, Osaka University 8-1 Mihogaoka Ibaraki 567-0047 Japan
| | - Chikara Dohno
- Department of Regulatory Bioorganic Chemistry, The Institute of Scientific and Industrial Research, Osaka University 8-1 Mihogaoka Ibaraki 567-0047 Japan
| | - Ben L Feringa
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
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237
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Büllmann SM, Kolmar T, Slawetzky P, Wald S, Jäschke A. Optochemical control of transcription by the use of 7-deaza-adenosine-based diarylethenes. Chem Commun (Camb) 2021; 57:6596-6599. [PMID: 34114572 DOI: 10.1039/d1cc02639a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Out of nine different 7-deaza-adenosine diarylethenes, we identified a high-performance photoswitch, suitable for the synthesis of photochromic DNA. By using solid phase synthesis, a photoresponsive T7 promotor was generated which allowed reversibly modulating the rate of enzymatic RNA synthesis in vitro.
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Affiliation(s)
- Simon M Büllmann
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, Heidelberg 69120, Germany.
| | - Theresa Kolmar
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, Heidelberg 69120, Germany.
| | - Philip Slawetzky
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, Heidelberg 69120, Germany.
| | - Simon Wald
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, Heidelberg 69120, Germany.
| | - Andres Jäschke
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, Heidelberg 69120, Germany.
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238
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Willems S, Morstein J, Hinnah K, Trauner D, Merk D. A Photohormone for Light-Dependent Control of PPARα in Live Cells. J Med Chem 2021; 64:10393-10402. [PMID: 34213899 DOI: 10.1021/acs.jmedchem.1c00810] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Photopharmacology enables the optical control of several biochemical processes using small-molecule photoswitches that exhibit different bioactivities in their cis- and trans-conformations. Such tool compounds allow for high spatiotemporal control of biological signaling, and the approach also holds promise for the development of drug molecules that can be locally activated to reduce target-mediated adverse effects. Herein, we present the expansion of the photopharmacological arsenal to two new members of the peroxisome proliferator-activated receptor (PPAR) family, PPARα and PPARδ. We have developed a set of highly potent PPARα and PPARδ targeting photohormones derived from the weak pan-PPAR agonist GL479 that can be deactivated by light. The photohormone 6 selectively activated PPARα in its trans-conformation with high selectivity over the related PPAR subtypes and was used in live cells to switch PPARα activity on and off in a light- and time-dependent fashion.
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Affiliation(s)
- Sabine Willems
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany
| | - Johannes Morstein
- Department of Chemistry, New York University, New York, New York 10003, United States
| | - Konstantin Hinnah
- Department of Chemistry, New York University, New York, New York 10003, United States
| | - Dirk Trauner
- Department of Chemistry, New York University, New York, New York 10003, United States
| | - Daniel Merk
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany
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239
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Lu S, Shen J, Fan C, Li Q, Yang X. DNA Assembly-Based Stimuli-Responsive Systems. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2100328. [PMID: 34258165 PMCID: PMC8261508 DOI: 10.1002/advs.202100328] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/05/2021] [Indexed: 05/06/2023]
Abstract
Stimuli-responsive designs with exogenous stimuli enable remote and reversible control of DNA nanostructures, which break many limitations of static nanostructures and inspired development of dynamic DNA nanotechnology. Moreover, the introduction of various types of organic molecules, polymers, chemical bonds, and chemical reactions with stimuli-responsive properties development has greatly expand the application scope of dynamic DNA nanotechnology. Here, DNA assembly-based stimuli-responsive systems are reviewed, with the focus on response units and mechanisms that depend on different exogenous stimuli (DNA strand, pH, light, temperature, electricity, metal ions, etc.), and their applications in fields of nanofabrication (DNA architectures, hybrid architectures, nanomachines, and constitutional dynamic networks) and biomedical research (biosensing, bioimaging, therapeutics, and theranostics) are discussed. Finally, the opportunities and challenges for DNA assembly-based stimuli-responsive systems are overviewed and discussed.
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Affiliation(s)
- Shasha Lu
- School of Chemistry and Chemical EngineeringFrontiers Science Center for Transformative MoleculesInstitute of Translational MedicineShanghai Jiao Tong UniversityShanghai200240China
| | - Jianlei Shen
- School of Chemistry and Chemical EngineeringFrontiers Science Center for Transformative MoleculesInstitute of Translational MedicineShanghai Jiao Tong UniversityShanghai200240China
| | - Chunhai Fan
- School of Chemistry and Chemical EngineeringFrontiers Science Center for Transformative MoleculesInstitute of Translational MedicineShanghai Jiao Tong UniversityShanghai200240China
- Institute of Molecular MedicineShanghai Key Laboratory for Nucleic Acid Chemistry and NanomedicineDepartment of UrologyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| | - Qian Li
- School of Chemistry and Chemical EngineeringFrontiers Science Center for Transformative MoleculesInstitute of Translational MedicineShanghai Jiao Tong UniversityShanghai200240China
| | - Xiurong Yang
- School of Chemistry and Chemical EngineeringFrontiers Science Center for Transformative MoleculesInstitute of Translational MedicineShanghai Jiao Tong UniversityShanghai200240China
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240
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Cheng HB, Zhang S, Qi J, Liang XJ, Yoon J. Advances in Application of Azobenzene as a Trigger in Biomedicine: Molecular Design and Spontaneous Assembly. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007290. [PMID: 34028901 DOI: 10.1002/adma.202007290] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 12/10/2020] [Indexed: 06/12/2023]
Abstract
Azobenzene is a well-known derivative of stimulus-responsive molecular switches and has shown superior performance as a functional material in biomedical applications. The results of multiple studies have led to the development of light/hypoxia-responsive azobenzene for biomedical use. In recent years, long-wavelength-responsive azobenzene has been developed. Matching the longer wavelength absorption and hypoxia-response characteristics of the azobenzene switch unit to the bio-optical window results in a large and effective stimulus response. In addition, azobenzene has been used as a hypoxia-sensitive connector via biological cleavage under appropriate stimulus conditions. This has resulted in on/off state switching of properties such as pharmacology and fluorescence activity. Herein, recent advances in the design and fabrication of azobenzene as a trigger in biomedicine are summarized.
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Affiliation(s)
- Hong-Bo Cheng
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, 15 North Third Ring Road, Beijing, 100029, P. R. China
| | - Shuchun Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, 15 North Third Ring Road, Beijing, 100029, P. R. China
| | - Ji Qi
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, 15 North Third Ring Road, Beijing, 100029, P. R. China
| | - Xing-Jie Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, No. 11, First North Road, Zhongguancun, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Juyoung Yoon
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, Korea
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241
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Abstract
Abstract
This article furnishes an introduction to one of the most well-known classes of photochromic colorant. While the properties of spiropyran dyes inspired pioneering efforts to exploit photochromism for industrial applications, their lack of robustness held them back from commercialization. Nevertheless, this type of dye remains at the heart of much of the work to develop light-responsive materials upon which many potential applications in different fields of scientific and technological endeavor depend. The article describes the photochromism, synthesis, and applications of spiropyran colorants with an emphasis on the structural subtype that has attracted the greatest scrutiny. It also acts as a springboard to sources of more detail on these aspects.
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Affiliation(s)
- Andrew Towns
- Arkema UK Ltd , Clifford House, York Road , Wetherby , West Yorkshire LS22 7NS, United Kingdom
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242
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Targeted Cancer Therapy Using Compounds Activated by Light. Cancers (Basel) 2021; 13:cancers13133237. [PMID: 34209493 PMCID: PMC8269035 DOI: 10.3390/cancers13133237] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 06/18/2021] [Accepted: 06/24/2021] [Indexed: 12/21/2022] Open
Abstract
Cancer chemotherapy is affected by a modest selectivity and toxic side effects of pharmacological interventions. Among novel approaches to overcome this limitation and to bring to therapy more potent and selective agents is the use of light for selective activation of anticancer compounds. In this review, we focus on the anticancer applications of two light-activated approaches still in the experimental phase: photoremovable protecting groups ("photocages") and photoswitches. We describe the structural considerations behind the development of novel compounds and the plethora of assays used to confirm whether the photochemical and pharmacological properties are meeting the stringent criteria for an efficient in vivo light-dependent activation. Despite its immense potential, light activation brings many challenges, and the complexity of the task is very demanding. Currently, we are still deeply in the phase of pharmacological tools, but the vivid research and rapid development bring the light of hope for potential clinical use.
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243
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Teders M, Murray NR, Huck WTS. Reversible Photoswitchable Inhibitors Enable Wavelength‐Selective Regulation of Out‐of‐Equilibrium Bi‐enzymatic Systems. CHEMSYSTEMSCHEM 2021. [DOI: 10.1002/syst.202100020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Michael Teders
- Institute for Molecules and Materials Radboud University Nijmegen Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Nicholas R. Murray
- Institute for Molecules and Materials Radboud University Nijmegen Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Wilhelm T. S. Huck
- Institute for Molecules and Materials Radboud University Nijmegen Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
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244
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He M, Lv W, Rao Y. Opportunities and Challenges of Small Molecule Induced Targeted Protein Degradation. Front Cell Dev Biol 2021; 9:685106. [PMID: 34249939 PMCID: PMC8261656 DOI: 10.3389/fcell.2021.685106] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 05/24/2021] [Indexed: 12/21/2022] Open
Abstract
Proteolysis targeting chimeras (PROTAC) represents a new type of small molecule induced protein degradation technology that has emerged in recent years. PROTAC uses bifunctional small molecules to induce ubiquitination of target proteins and utilizes intracellular proteasomes for chemical knockdown. It complements the gene editing and RNA interference for protein knockdown. Compared with small molecule inhibitors, PROTAC has shown great advantages in overcoming tumor resistance, affecting the non-enzymatic function of target proteins, degrading undruggable targets, and providing new rapid and reversible chemical knockout tools. At the same time, its challenges and problems also need to be resolved as a fast-developing newchemical biology technology.
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Affiliation(s)
- Ming He
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, China
| | - Wenxing Lv
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, China
| | - Yu Rao
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, China
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245
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Skotnicka A, Czeleń P. Substituent and Solvent Polarity on the Spectroscopic Properties in Azo Derivatives of 2-Hydroxynaphthalene and Their Difluoroboranes Complexes. MATERIALS 2021; 14:ma14123387. [PMID: 34207321 PMCID: PMC8235415 DOI: 10.3390/ma14123387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/13/2021] [Accepted: 06/15/2021] [Indexed: 11/30/2022]
Abstract
Novel fluorescent dyes such as difluoroborane complexes of 1-phenylazonaphthalen-2-ol derivatives were successfully synthesized and characterized with a focus on the influence of a substituent and a solvent on the basic photophysical properties. 1H, 11B, 13C, 15N, and 19F nuclear magnetic resonance (NMR) spectra of substituted 1-phenylazonaphthalen-2-ol difluoroboranes and their parent azo dyes were recorded and discussed. The absorption and emission properties of synthesized compounds were investigated in solvents of varying polarity. They were found to be fluorescent despite the presence of the azo group. The azo group rotation was blocked by complexing with -BF2 to get a red shift in absorption. Solvent-dependent spectral properties of compounds were investigated using Lipper-Mataga and Bakhshiev plot. The calculated DFT energies and Frontier Molecular Orbitals calculations of the studied compounds were proved to be consistent with the experimental observations.
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Affiliation(s)
- Agnieszka Skotnicka
- Faculty of Chemical Technology and Engineering, UTP University of Science and Technology, Seminaryjna 3, 85-326 Bydgoszcz, Poland
- Correspondence: ; Tel.: +48-(52)-3749-111
| | - Przemysław Czeleń
- Department of Physical Chemistry, Faculty of Pharmacy, Collegium Medicum, N. Copernicus University, Kurpińskiego 5, 85-950 Bydgoszcz, Poland;
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246
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Fernandes RJ, Remón P, Moro AJ, Seco A, Ferreira ASD, Pischel U, Basílio N. Toward Light-Controlled Supramolecular Peptide Dimerization. J Org Chem 2021; 86:8472-8478. [PMID: 34060851 PMCID: PMC9161448 DOI: 10.1021/acs.joc.1c00464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The selective photodeprotection of the NVoc-modified FGG tripeptide yields the transformation of its 1:1 receptor-ligand complex with cucurbit[8]uril into a homoternary FGG2@CB8 assembly. The resulting light-induced dimerization of the model peptide provides a tool for the implementation of stimuli-responsive supramolecular chemistry in biologically relevant contexts.
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Affiliation(s)
- Rita J Fernandes
- Laboratorio Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnología, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Patricia Remón
- CIQSO - Centre for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva, Campus de El Carmen s/n, E-21071 Huelva, Spain
| | - Artur J Moro
- Laboratorio Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnología, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - André Seco
- Laboratorio Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnología, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Ana S D Ferreira
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Uwe Pischel
- CIQSO - Centre for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva, Campus de El Carmen s/n, E-21071 Huelva, Spain
| | - Nuno Basílio
- Laboratorio Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnología, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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247
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Burmeister A, Akhtar Q, Hollmann L, Tenhaef N, Hilgers F, Hogenkamp F, Sokolowsky S, Marienhagen J, Noack S, Kohlheyer D, Grünberger A. (Optochemical) Control of Synthetic Microbial Coculture Interactions on a Microcolony Level. ACS Synth Biol 2021; 10:1308-1319. [PMID: 34075749 DOI: 10.1021/acssynbio.0c00382] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Synthetic microbial cocultures carry enormous potential for applied biotechnology and are increasingly the subject of fundamental research. So far, most cocultures have been designed and characterized based on bulk cultivations without considering the potentially highly heterogeneous and diverse single-cell behavior. However, an in-depth understanding of cocultures including their interacting single cells is indispensable for the development of novel cultivation approaches and control of cocultures. We present the development, validation, and experimental characterization of an optochemically controllable bacterial coculture on a microcolony level consisting of two Corynebacterium glutamicum strains. Our coculture combines an l-lysine auxotrophic strain together with a l-lysine-producing variant carrying the genetically IPTG-mediated induction of l-lysine production. We implemented two control approaches utilizing IPTG as inducer molecule. First, unmodified IPTG was supplemented to the culture enabling a medium-based control of the production of l-lysine, which serves as the main interacting component. Second, optochemical control was successfully performed by utilizing photocaged IPTG activated by appropriate illumination. Both control strategies were validated studying cellular growth on a microcolony level. The novel microfluidic single-cell cultivation strategies applied in this work can serve as a blueprint to validate cellular control strategies of synthetic mono- and cocultures with single-cell resolution at defined environmental conditions.
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Affiliation(s)
- Alina Burmeister
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425 Jülich, Germany
- Multiscale Bioengineering, Bielefeld University, 33615 Bielefeld, Germany
| | - Qiratt Akhtar
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Lina Hollmann
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Niklas Tenhaef
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Fabienne Hilgers
- Institute of Molecular Enzyme Technology, Heinrich-Heine-University Düsseldorf, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - Fabian Hogenkamp
- Institute of Bioorganic Chemistry, Heinrich Heine University Düsseldorf, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - Sascha Sokolowsky
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Jan Marienhagen
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute of Biotechnology, RWTH Aachen University, 52074 Aachen, Germany
| | - Stephan Noack
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Dietrich Kohlheyer
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425 Jülich, Germany
- Aachener Verfahrenstechnik (AVT-MSB), RWTH Aachen University, 52074 Aachen, Germany
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248
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He Y, Shangguan Z, Zhang ZY, Xie M, Yu C, Li T. Azobispyrazole Family as Photoswitches Combining (Near-) Quantitative Bidirectional Isomerization and Widely Tunable Thermal Half-Lives from Hours to Years*. Angew Chem Int Ed Engl 2021; 60:16539-16546. [PMID: 33852166 DOI: 10.1002/anie.202103705] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/13/2021] [Indexed: 11/08/2022]
Abstract
Azobenzenes are classical molecular photoswitches that have been widely used. In recent endeavors of molecular design, replacing one or both phenyl rings with heteroaromatic rings has emerged as a strategy to expand molecular diversity and access improved photoswitching properties. Many mono-heteroaryl azo molecules with unique structures and/or properties have been developed, but the potential of bis-heteroaryl architectures is far from fully exploited. We report a family of azobispyrazoles, which combine (near-)quantitative bidirectional photoconversion and widely tunable Z-isomer thermal half-lives from hours to years. The two five-membered rings remarkably weaken the intramolecular steric hindrance, providing new possibilities for engineering the geometric and electronic structure of azo photoswitches. Azobispyrazoles generally exhibit twisted Z-isomers that facilitate complete Z→E photoisomerization, and their thermal stability can be broadly adjusted regardless of the twisted shape, overcoming the conflict between photoconversion (favored by the twisted shape) and Z-isomer stability (favored by the orthogonal shape) encountered by mono-heteroaryl azo switches.
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Affiliation(s)
- Yixin He
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zhichun Shangguan
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zhao-Yang Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Mingchen Xie
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Chunyang Yu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Tao Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai, 200240, China
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249
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Torner JM, Arora PS. Conformational control in a photoswitchable coiled coil. Chem Commun (Camb) 2021; 57:1442-1445. [PMID: 33514971 DOI: 10.1039/d0cc08318f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The coiled coil is a common protein tertiary structure intimately involved in mediating protein recognition and function. Due to their structural simplicity, coiled coils have served as attractive scaffolds for the development of functional biomaterials. Herein we describe the design of conformationally-defined coiled coil photoswitches as potential environmentally-sensitive biomaterials.
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Affiliation(s)
- Justin M Torner
- Department of Chemistry, New York University, 100 Washington Square East, New York, NY 10003, USA.
| | - Paramjit S Arora
- Department of Chemistry, New York University, 100 Washington Square East, New York, NY 10003, USA.
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250
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Tuck JR, Tombari RJ, Yardeny N, Olson DE. A Modular Approach to Arylazo-1,2,3-triazole Photoswitches. Org Lett 2021; 23:4305-4310. [PMID: 34019429 DOI: 10.1021/acs.orglett.1c01230] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Azoheteroarenes make up an emerging class of photoswitchable compounds with unique photophysical properties and advantages over traditional azobenzenes. Therefore, methods for synthesizing azoheteroarenes are highly desirable. Here, we utilize azide-alkyne click chemistry to access arylazo-1,2,3-triazoles, a previously unexplored class of azoheteroarenes that exhibit high thermal stabilities and near-quantitative bidirectional photoconversion. Controlling the catalyst or 1,3-dipole grants access to both regioisomeric arylazotriazoles and arylazoisoxazoles, highlighting the versatility of our approach.
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Affiliation(s)
- Jeremy R Tuck
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States
| | - Robert J Tombari
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States
| | - Noah Yardeny
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States
| | - David E Olson
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States.,Department of Biochemistry & Molecular Medicine, School of Medicine, University of California, Davis, Sacramento, California 95817, United States.,Center for Neuroscience, University of California, Davis, Davis, California 95618, United States
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