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Anzola M, Winssinger N. Turn On of a Ruthenium(II) Photocatalyst by DNA-Templated Ligation. Chemistry 2018; 25:334-342. [PMID: 30451338 DOI: 10.1002/chem.201804283] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Indexed: 01/05/2023]
Abstract
Here, the synthesis of a RuII photocatalyst by light-directed oligonucleotide-templated ligation reaction is described. The photocatalyst was found to have tremendous potential for signal amplification with >15000 turnovers measured in 9 hours. A templated reaction was used to turn on the activity of this ruthenium(II) photocatalyst in response to a specific DNA sequence. The photocatalysis of the ruthenium(II) complex was harnessed to uncage a new precipitating dye that is highly fluorescent and photostable in the solid state. This reaction was used to discriminate between different DNA analytes based on localization of the precipitate as well as for in cellulo miRNA detection. Finally, a bipyridine ligand functionalized with two different peptide nucleic acid (PNA) sequences was shown to enable template-mediated ligation (turn on of the ruthenium(II) photocatalysis) and recruitment of substrate for templated photocatalysis.
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Affiliation(s)
- Marcello Anzola
- Department of Organic Chemistry, NCCR Chemical Biology, Faculty of Science, University of Geneva, 30 Quai Ernest-Ansermet, 1205, Geneva, Switzerland
| | - Nicolas Winssinger
- Department of Organic Chemistry, NCCR Chemical Biology, Faculty of Science, University of Geneva, 30 Quai Ernest-Ansermet, 1205, Geneva, Switzerland
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Abstract
Nucleic acid directed bioorthogonal reactions offer the fascinating opportunity to unveil and redirect a plethora of intracellular mechanisms. Nano- to picomolar amounts of specific RNA molecules serve as templates and catalyze the selective formation of molecules that 1) exert biological effects, or 2) provide measurable signals for RNA detection. Turnover of reactants on the template is a valuable asset when concentrations of RNA templates are low. The idea is to use RNA-templated reactions to fully control the biodistribution of drugs and to push the detection limits of DNA or RNA analytes to extraordinary sensitivities. Herein we review recent and instructive examples of conditional synthesis or release of compounds for in cellulo protein interference and intracellular nucleic acid imaging.
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Affiliation(s)
- Margherita Di Pisa
- Department of ChemistryHumboldt University BerlinBrook-Taylor Strasse 212489BerlinGermany
| | - Oliver Seitz
- Department of ChemistryHumboldt University BerlinBrook-Taylor Strasse 212489BerlinGermany
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Al Sulaiman D, Chang JYH, Ladame S. Subnanomolar Detection of Oligonucleotides through Templated Fluorogenic Reaction in Hydrogels: Controlling Diffusion to Improve Sensitivity. Angew Chem Int Ed Engl 2017; 56:5247-5251. [PMID: 28382640 PMCID: PMC5502887 DOI: 10.1002/anie.201701356] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 03/02/2017] [Indexed: 02/06/2023]
Abstract
Oligonucleotide-templated reactions are valuable tools for nucleic acid sensing both in vitro and in vivo. They are typically carried out under conditions that make any reaction in the absence of template highly unfavorable (most commonly by using a low concentration of reactants), which has a negative impact on the detection sensitivity. Herein, we report a novel platform for fluorogenic oligonucleotide-templated reactions between peptide nucleic acid probes embedded within permeable agarose and alginate hydrogels. We demonstrate that under conditions of restricted mobility (that is, limited diffusion), non-specific interactions between probes are prevented, thus leading to lower background signals. When applied to nucleic acid sensing, this accounts for a significant increase in sensitivity (that is, lower limit of detection). Optical nucleic acid sensors based on fluorogenic peptide nucleic acid probes embedded in permeable, physically crosslinked, alginate beads were also engineered and proved capable of detecting DNA concentrations as low as 100 pm.
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Affiliation(s)
- Dana Al Sulaiman
- Department of Bioengineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
| | - Jason Y H Chang
- Department of Bioengineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
| | - Sylvain Ladame
- Department of Bioengineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
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Al Sulaiman D, Chang JYH, Ladame S. Subnanomolar Detection of Oligonucleotides through Templated Fluorogenic Reaction in Hydrogels: Controlling Diffusion to Improve Sensitivity. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701356] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Dana Al Sulaiman
- Department of Bioengineering; Imperial College London; South Kensington Campus London SW7 2AZ UK
| | - Jason Y. H. Chang
- Department of Bioengineering; Imperial College London; South Kensington Campus London SW7 2AZ UK
| | - Sylvain Ladame
- Department of Bioengineering; Imperial College London; South Kensington Campus London SW7 2AZ UK
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Di Pisa M, Hauser A, Seitz O. Maximizing Output in RNA-Programmed Peptidyl-Transfer Reactions. Chembiochem 2017; 18:872-879. [PMID: 28106939 DOI: 10.1002/cbic.201600687] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Indexed: 01/10/2023]
Abstract
A chemical reaction that is triggered by a specific RNA molecule might provide opportunities for the design of artificial feedback loops. We envision a peptidyl transfer reaction in which mRNA encoding an antiapoptotic protein would instruct the synthesis of apoptosis-inducing peptides. In this study, we used the RNA-programmed synthesis of a 16-mer peptide derived from the BH3 domain of the protein Bak, which inhibits the antiapoptotic protein Bcl-xL . The reaction involves the transfer of a thioester-linked donor peptide fragment from one PNA conjugate to an acceptor peptide-PNA conjugate. We asked two key questions. What are the chemical requirements that allow RNA-templated synthesis of a 16-mer peptide to proceed at lower (nanomolar) concentrations of RNA, that is, the concentration range found in cancer cells? Will such reactions provide sufficient amounts of peptide product and sufficient affinity to interfere with the targeted protein-protein interaction? Perhaps surprisingly, the lengths of the peptides involved in peptidyl transfer chemistry have little effect on the achievable rate enhancements. However, the nature of the thioester C terminus, the distance between the targeted template annealing sites, and template affinity play important roles. The investigation revealed guidelines for the reaction design for peptidyl transfer with low amounts (1-10 nm) of RNA, yet still provide sufficient product to antagonize a protein-protein interaction.
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Affiliation(s)
- Margherita Di Pisa
- Department of Chemistry, Humboldt Universität zu Berlin, Brook Taylor Strasse 2, 12849, Berlin, Germany
| | - Anett Hauser
- Department of Chemistry, Humboldt Universität zu Berlin, Brook Taylor Strasse 2, 12849, Berlin, Germany
| | - Oliver Seitz
- Department of Chemistry, Humboldt Universität zu Berlin, Brook Taylor Strasse 2, 12849, Berlin, Germany
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Roloff A, Seitz O. Reducing product inhibition in nucleic acid-templated ligation reactions: DNA-templated cycligation. Chembiochem 2013; 14:2322-8. [PMID: 24243697 DOI: 10.1002/cbic.201300516] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Indexed: 01/19/2023]
Abstract
Programmable interactions allow nucleic acid molecules to template chemical reactions by increasing the effective molarities of appended reactive groups. DNA/RNA-triggered reactions can proceed, in principle, with turnover in the template. The amplification provided by the formation of many product molecules per template is a valuable asset when the availability of the DNA or RNA target is limited. However, turnover is usually impeded by reaction products that block access to the template. Product inhibition is most severe in ligation reactions, where products after ligation have dramatically increased template affinities. We introduce a potentially generic approach to reduce product inhibition in nucleic acid-programmed ligation reactions. A DNA-triggered ligation-cyclization sequence ("cycligation") of bifunctional peptide nucleic acid (PNA) conjugates affords cyclic ligation products. Melting experiments revealed that product cyclization is accompanied by a pronounced decrease in template affinity compared to linear ligation products. The reaction system relies upon haloacetylated PNA-thioesters and isocysteinyl-PNA-cysteine conjugates, which were ligated on a DNA template according to a native chemical ligation mechanism. Dissociation of the resulting linear product-template duplex (induced by, for example, thermal cycling) enabled product cyclization through sulfur-halide substitution. Both ligation and cyclization are fast reactions (ligation: 86 % yield after 20 min, cyclization: quantitative after 5 min). Under thermocycling conditions, the DNA template was able to trigger the formation of new product molecules when fresh reactants were added. Furthermore, cycligation produced 2-3 times more product than a conventional ligation reaction with substoichiometric template loads (0.25-0.01 equiv). We believe that cyclization of products from DNA-templated reactions could ultimately afford systems that completely overcome product inhibition.
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Affiliation(s)
- Alexander Roloff
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489-Berlin (Germany)
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Kawai K, Majima T, Maruyama A. Detection of single-nucleotide variations by monitoring the blinking of fluorescence induced by charge transfer in DNA. Chembiochem 2013; 14:1430-3. [PMID: 23846860 DOI: 10.1002/cbic.201300380] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Indexed: 01/03/2023]
Abstract
Charge transfer dynamics in DNA: Photo-induced charge separation and charge-recombination dynamics in DNA was assessed by monitoring the blinking of fluorescence. Single nucleotide variations, mismatch and one base deletion, were differentiated based on the length of the off-time of the blinking, which corresponds to the lifetime of the charge-separated state.
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Affiliation(s)
- Kiyohiko Kawai
- The Institute of Scientific and Industrial Research, Osaka University, Mihogaoka 8-1, Ibaraki, Japan.
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Gorska K, Winssinger N. Reactions templated by nucleic acids: more ways to translate oligonucleotide-based instructions into emerging function. Angew Chem Int Ed Engl 2013; 52:6820-43. [PMID: 23794204 DOI: 10.1002/anie.201208460] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Indexed: 12/30/2022]
Abstract
The programmability of oligonucleotide recognition offers an attractive platform to direct the assembly of reactive partners that can engage in chemical reactions. Recently, significant progress has been made in both the breadth of chemical transformations and in the functional output of the reaction. Herein we summarize these recent progresses and illustrate their applications to translate oligonucleotide instructions into functional materials and novel architectures (conductive polymers, nanopatterns, novel oligonucleotide junctions); into fluorescent or bioactive molecule using cellular RNA; to interrogate secondary structures or oligonucelic acids; or a synthetic oligomer.
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Affiliation(s)
- Katarzyna Gorska
- Institut de Science et Ingénierie Supramoléculaires (ISIS-UMR 7006), Universite de Strasbourg-CNRS, 8 allée Gaspard Monge, 67000 Strasbourg, France
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Gorska K, Winssinger N. Reaktionen an Nucleinsäuretemplaten: mehr Methoden zur Übersetzung Oligonucleotid-basierter Informationen in neue Funktionen. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208460] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Sadhu KK, Winssinger N. Detection of miRNA in live cells by using templated RuII-catalyzed unmasking of a fluorophore. Chemistry 2013; 19:8182-9. [PMID: 23633397 DOI: 10.1002/chem.201300060] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Indexed: 12/21/2022]
Abstract
Reactions templated by cellular nucleic acids are attractive for nucleic acid sensing or responsive systems. Herein we report the use of a photocatalyzed reductive cleavage of an immolative linker to unmask a rhodamine fluorophore, and its application to miRNA imaging. The reaction was found to proceed with a very high turnover (>4000) and provided reliable detection down to 5 pM of template by using γ-serine-modified peptide nucleic acid (PNA) probes. The reaction was used for the selective detection of miR-21 in BT474 cells and miR-31 in HeLa cells following irradiation for 30 min. The probes were introduced by using reversible permeation with streptolysin-O (SLO) or a transfection technique.
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Affiliation(s)
- Kalyan K Sadhu
- Institut de Science et Ingénierie Supramoléculaires (ISIS-UMR 7006), Université de Strasbourg, CNRS, 8 allée Gaspard Monge, 67000 Strasbourg, France
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Roloff A, Seitz O. Bioorthogonal reactions challenged: DNA templated native chemical ligation during PCR. Chem Sci 2013. [DOI: 10.1039/c2sc20961f] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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12
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Prusty DK, Kwak M, Wildeman J, Herrmann A. Modular assembly of a Pd catalyst within a DNA scaffold for the amplified colorimetric and fluorimetric detection of nucleic acids. Angew Chem Int Ed Engl 2012; 51:11894-8. [PMID: 23076826 PMCID: PMC3533772 DOI: 10.1002/anie.201206006] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Indexed: 11/10/2022]
Affiliation(s)
- Deepak K Prusty
- University of Groningen, Zernike Institute for Advanced Materials, Department of Polymer Chemistry, Nijenborgh 4, 9747 AG Groningen, Netherlands
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Prusty DK, Kwak M, Wildeman J, Herrmann A. Modular Assembly of a Pd Catalyst within a DNA Scaffold for the Amplified Colorimetric and Fluorimetric Detection of Nucleic Acids. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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