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Mathur S, Karumban KS, Muley A, Tuti N, Shaji UP, Roy I, Verma A, Kumawat MK, Roy A, Maji S. Chromophore appended DPA-based copper(II) complexes with a diimine motif towards DNA binding and fragmentation studies. Dalton Trans 2024; 53:1163-1177. [PMID: 38105760 DOI: 10.1039/d3dt01864d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Mixed ligand copper(II) complexes [Cu(L1)(bpy)](ClO4)21 and [Cu(L2)(bpy)](ClO4)22 (where L1 = 1-(anthracen-9-yl)-N,N-bis(pyridin-2-ylmethyl)methanamine, L2 = 1-(pyren-1-yl)-N,N-bis(pyridin-2-ylmethyl)methanamine and bpy = 2,2'-bipyridine) were synthesised and characterised thoroughly via different analytical and spectroscopic techniques i.e., UV-vis spectroscopy, fluorescence spectroscopy, FT-IR spectroscopy, HRMS and EPR spectroscopy. The molecular structures of the synthesised complexes were obtained using the single-crystal X-ray diffraction technique. Both complexes exhibited penta-coordinated and acquired distorted square pyramidal geometry. The redox behaviour of complexes 1 and 2 was investigated by employing cyclic voltammetry. The DNA binding study was carried out by UV-vis spectrophotometry using double-stranded salmon sperm DNA (ds-ss-DNA). The binding constant (Kb) values of 1 and 2 were 0.11 × 104 M-1 and 1.05 × 104 M-1, respectively, which indicates that 2 has better binding ability than 1. This might be due to the higher conjugative abilities with the extended surface area of the aromatic pyrene ring compared to the anthracene moiety. The fluorescence quenching experiments were also performed with EB bound DNA (EB-DNA) and Stern-Volmer constant (KSV) values were calculated as 1.23 × 105 M-1 and 1.39 × 105 M-1 for 1 and 2, respectively, suggesting that 2 showed stronger interaction with ss-DNA than 1. The molecular docking data support the DNA-binding studies, with the sites and mode of interactions against B-DNA varying with 1 and 2. Evaluation of the DNA binding properties of the complexes to linearized plasmid DNA indicated that 2 had modest DNA binding properties, which is a pre-requisite for a genotoxic agent. The effect of 1 and 2 on cell survival was analysed using HeLa cells by MTT assay and it was observed that the IC50 values of 1 and 2 were 43.7 μM and 18.6 μM, respectively. Our study paves the way for the designing of bio-inspired novel mixed metal complexes, which shows promising results for further exploration of molecular and mechanistic studies towards the development of non-platinum based economical metallodrugs.
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Affiliation(s)
- Shobhit Mathur
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Kalai Selvan Karumban
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Arabinda Muley
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Nikhil Tuti
- Department of Biotechnology, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | | | - Indrajit Roy
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Anushka Verma
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Manoj Kumar Kumawat
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Anindya Roy
- Department of Biotechnology, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Somnath Maji
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
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2
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Craig JS, Melidis L, Williams HD, Dettmer SJ, Heidecker AA, Altmann PJ, Guan S, Campbell C, Browning DF, Sigel RKO, Johannsen S, Egan RT, Aikman B, Casini A, Pöthig A, Hannon MJ. Organometallic Pillarplexes That Bind DNA 4-Way Holliday Junctions and Forks. J Am Chem Soc 2023. [PMID: 37318835 DOI: 10.1021/jacs.3c00118] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Holliday 4-way junctions are key to important biological DNA processes (insertion, recombination, and repair) and are dynamic structures that adopt either open or closed conformations, the open conformation being the biologically active form. Tetracationic metallo-supramolecular pillarplexes display aryl faces about a cylindrical core, an ideal structure to interact with open DNA junction cavities. Combining experimental studies and MD simulations, we show that an Au pillarplex can bind DNA 4-way (Holliday) junctions in their open form, a binding mode not accessed by synthetic agents before. Pillarplexes can bind 3-way junctions too, but their large size leads them to open up and expand that junction, disrupting the base pairing, which manifests in an increased hydrodynamic size and lower junction thermal stability. At high loading, they rearrange both 4-way and 3-way junctions into Y-shaped forks to increase the available junction-like binding sites. Isostructural Ag pillarplexes show similar DNA junction binding behavior but lower solution stability. This pillarplex binding contrasts with (but complements) that of metallo-supramolecular cylinders, which prefer 3-way junctions and can rearrange 4-way junctions into 3-way junction structures. The pillarplexes' ability to bind open 4-way junctions creates exciting possibilities to modulate and switch such structures in biology, as well as in synthetic nucleic acid nanostructures. In human cells, the pillarplexes do reach the nucleus, with antiproliferative activity at levels similar to those of cisplatin. The findings provide a new roadmap for targeting higher-order junction structures using a metallo-supramolecular approach, as well as expanding the toolbox available to design bioactive junction binders into organometallic chemistry.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Roland K O Sigel
- Department of Chemistry, University of Zürich, Winterthurerstr. 190, 8057 Zürich, Switzerland
| | - Silke Johannsen
- Department of Chemistry, University of Zürich, Winterthurerstr. 190, 8057 Zürich, Switzerland
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3
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New N4-Donor Ligands as Supramolecular Guests for DNA and RNA: Synthesis, Structural Characterization, In Silico, Spectrophotometric and Antimicrobial Studies. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28010400. [PMID: 36615615 PMCID: PMC9823393 DOI: 10.3390/molecules28010400] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/22/2022] [Accepted: 12/26/2022] [Indexed: 01/05/2023]
Abstract
The present work reports the synthesis of new N4-donor compounds carrying p-xylyl spacers in their structure. Different Schiff base aliphatic N-donors were obtained synthetically and subsequently evaluated for their ability to interact with two models of nucleic acids: calf-thymus DNA (CT-DNA) and the RNA from yeast Saccharomyces cerevisiae (herein simply indicated as RNA). In more detail, by condensing p-xylylenediamine and a series of aldehydes, we obtained the following Schiff base ligands: 2-thiazolecarboxaldehyde (L1), pyridine-2-carboxaldehyde (L2), 5-methylisoxazole-3-carboxaldehyde (L3), 1-methyl-2-imidazolecarboxaldehyde (L4), and quinoline-2-carboxaldehyde (L5). The structural characterisation of the ligands L1-L5 (X-ray, 1H NMR, 13C NMR, elemental analysis) and of the coordination polymers {[CuL1]PF6}n (herein referred to as Polymer1) and {[AgL1]BF4}n, (herein referred to as Polymer2, X-ray, 1H NMR, ESI-MS) is herein described in detail. The single crystal X-ray structures of complexes Polymer1 and Polymer2 were also investigated, leading to the description of one-dimensional coordination polymers. The spectroscopic and in silico evaluation of the most promising compounds as DNA and RNA binders, as well as the study of the influence of the 1D supramolecular polymers Polymer1 and Polymer2 on the proliferation of Escherichia coli bacteria, were performed in view of their nucleic acid-modulating and antimicrobial applications. Spectroscopic measurements (UV-Vis) combined with molecular docking calculations suggest that the thiazolecarboxaldehyde derivative L1 is able to bind CT-DNA with a mechanism different from intercalation involving the thiazole ring in the molecular recognition and shows a binding affinity with DNA higher than RNA. Finally, Polymer2 was shown to slow down the proliferation of bacteria much more effectively than the free Ag(I) salt.
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4
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McQuaid K, Pipier A, Cardin C, Monchaud D. Interactions of small molecules with DNA junctions. Nucleic Acids Res 2022; 50:12636-12656. [PMID: 36382400 PMCID: PMC9825177 DOI: 10.1093/nar/gkac1043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/13/2022] [Accepted: 10/23/2022] [Indexed: 11/17/2022] Open
Abstract
The four natural DNA bases (A, T, G and C) associate in base pairs (A=T and G≡C), allowing the attached DNA strands to assemble into the canonical double helix of DNA (or duplex-DNA, also known as B-DNA). The intrinsic supramolecular properties of nucleobases make other associations possible (such as base triplets or quartets), which thus translates into a diversity of DNA structures beyond B-DNA. To date, the alphabet of DNA structures is ripe with approximately 20 letters (from A- to Z-DNA); however, only a few of them are being considered as key players in cell biology and, by extension, valuable targets for chemical biology intervention. In the present review, we summarise what is known about alternative DNA structures (what are they? When, where and how do they fold?) and proceed to discuss further about those considered nowadays as valuable therapeutic targets. We discuss in more detail the molecular tools (ligands) that have been recently developed to target these structures, particularly the three- and four-way DNA junctions, in order to intervene in the biological processes where they are involved. This new and stimulating chemical biology playground allows for devising innovative strategies to fight against genetic diseases.
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Affiliation(s)
- Kane T McQuaid
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, UK
| | - Angélique Pipier
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB), CNRS UMR 6302, UBFC Dijon, 21078 Dijon, France
| | - Christine J Cardin
- Correspondence may also be addressed to Christine J. Cardin. Tel: +44 118 378 8215;
| | - David Monchaud
- To whom correspondence should be addressed. Tel: +33 380 399 043;
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5
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Ivens E, Cominetti MM, Searcey M. Junctions in DNA: underexplored targets for therapeutic intervention. Bioorg Med Chem 2022; 69:116897. [DOI: 10.1016/j.bmc.2022.116897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/15/2022] [Accepted: 06/20/2022] [Indexed: 11/02/2022]
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6
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van der Westhuizen D, Bezuidenhout DI, Munro OQ. Cancer molecular biology and strategies for the design of cytotoxic gold(I) and gold(III) complexes: a tutorial review. Dalton Trans 2021; 50:17413-17437. [PMID: 34693422 DOI: 10.1039/d1dt02783b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This tutorial review highlights key principles underpinning the design of selected metallodrugs to target specific biological macromolecules (DNA and proteins). The review commences with a descriptive overview of the eukaryotic cell cycle and the molecular biology of cancer, particularly apoptosis, which is provided as a necessary foundation for the discovery, design, and targeting of metal-based anticancer agents. Drugs which target DNA have been highlighted and clinically approved metallodrugs discussed. A brief history of the development of mainly gold-based metallodrugs is presented prior to addressing ligand systems for stabilizing and adding functionality to bio-active gold(I) and gold(III) complexes, particularly in the burgeoning field of anticancer metallodrugs. Concepts such as multi-modal and selective cytotoxic agents are covered where necessary for selected compounds. The emerging role of carbenes as the ligand system of choice to achieve these goals for gold-based metallodrug candidates is highlighted prior to closing the review with comments on some future directions that this research field might follow. The latter section ultimately emphasizes the importance of understanding the fate of metal complexes in cells to garner key mechanistic insights.
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Affiliation(s)
- Danielle van der Westhuizen
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg 2050, South Africa.
| | - Daniela I Bezuidenhout
- Laboratory of Inorganic Chemistry, Environmental and Chemical Engineering, University of Oulu, P. O. Box 3000, 90014 Oulu, Finland.
| | - Orde Q Munro
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg 2050, South Africa.
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7
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Lisboa LS, Riisom M, Vasdev RAS, Jamieson SMF, Wright LJ, Hartinger CG, Crowley JD. Cavity-Containing [Fe 2L 3] 4+ Helicates: An Examination of Host-Guest Chemistry and Cytotoxicity. Front Chem 2021; 9:697684. [PMID: 34307299 PMCID: PMC8292671 DOI: 10.3389/fchem.2021.697684] [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: 04/20/2021] [Accepted: 06/16/2021] [Indexed: 02/04/2023] Open
Abstract
Two new di(2,2′-bipyridine) ligands, 2,6-bis([2,2′-bipyridin]-5-ylethynyl)pyridine (L1) and bis(4-([2,2′-bipyridin]-5-ylethynyl)phenyl)methane (L2) were synthesized and used to generate two metallosupramolecular [Fe2(L)3](BF4)4 cylinders. The ligands and cylinders were characterized using elemental analysis, electrospray ionization mass spectrometry, UV-vis, 1H-, 13C and DOSY nuclear magnetic resonance (NMR) spectroscopies. The molecular structures of the [Fe2(L)3](BF4)4 cylinders were confirmed using X-ray crystallography. Both the [Fe2(L1)3](BF4)4 and [Fe2(L2)3](BF4)4 complexes crystallized as racemic (rac) mixtures of the ΔΔ (P) and ΛΛ (M) helicates. However, 1H NMR spectra showed that in solution the larger [Fe2(L2)3](BF4)4 was a mixture of the rac-ΔΔ/ΛΛ and meso-ΔΛ isomers. The host-guest chemistry of the helicates, which both feature a central cavity, was examined with several small drug molecules. However, none of the potential guests were found to bind within the helicates. In vitro cytotoxicity assays demonstrated that both helicates were active against four cancer cell lines. The smaller [Fe2(L1)3](BF4)4 system displayed low μM activity against the HCT116 (IC50 = 7.1 ± 0.5 μM) and NCI-H460 (IC50 = 4.9 ± 0.4 μM) cancer cells. While the antiproliferative effects against all the cell lines examined were less than the well-known anticancer drug cisplatin, their modes of action would be expected to be very different.
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Affiliation(s)
- Lynn S Lisboa
- Department of Chemistry, University of Otago, Dunedin, New Zealand
| | - Mie Riisom
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand.,Auckland Cancer Society Research Centre, University of Auckland, Auckland, New Zealand
| | - Roan A S Vasdev
- Department of Chemistry, University of Otago, Dunedin, New Zealand
| | - Stephen M F Jamieson
- Auckland Cancer Society Research Centre, University of Auckland, Auckland, New Zealand
| | - L James Wright
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | | | - James D Crowley
- Department of Chemistry, University of Otago, Dunedin, New Zealand
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8
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Dey N, Haynes CJE. Supramolecular Coordination Complexes as Optical Biosensors. Chempluschem 2021; 86:418-433. [PMID: 33665986 DOI: 10.1002/cplu.202100004] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/15/2021] [Indexed: 12/11/2022]
Abstract
In recent years, luminescent supramolecular coordination complexes (SCCs), including 2D-metallacycles and 3D-metallacages have been utilised for biomolecular analysis. Unlike small-molecular probes, the dimensions, size, shape, and flexibility of these complexes can easily be tuned by combining ligands designed with particular geometries, symmetries and denticity with metal ions with strong geometrical binding preferences. The well-defined cavities that result, in combination with the other non-covalent interactions that can be programmed into the ligand design, facilitate great selectivity towards guest binding. In this Review we will discuss the application of luminescent metallacycles and cages in the binding and detection of a wide range of biomolecules, such as carbohydrates, proteins, amino acids, and biogenic amines. We aim to explore the effect of the structural diversity of SCCs on the extent of biomolecular sensing, expressed in terms of sensitivity, selectivity and detection range.
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Affiliation(s)
- Nilanjan Dey
- Graduate School of Science, Kyoto University, Japan
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9
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Song H, Postings M, Scott P, Rogers NJ. Metallohelices emulate the properties of short cationic α-helical peptides. Chem Sci 2021; 12:1620-1631. [PMID: 34163922 PMCID: PMC8179244 DOI: 10.1039/d0sc06412b] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 12/24/2020] [Indexed: 12/15/2022] Open
Abstract
Naturally occurring peptides in many living systems perform antimicrobial and anticancer host defence roles, but their potential for clinical application is limited by low metabolic stability and relatively high costs of goods. Self-assembled helical metal complexes provide an attractive synthetic platform for non-peptidic architectures that can emulate some of the properties of short cationic α-helical peptides, with tuneable charge, shape, size and amphipathicity. Correspondingly there is a growing body of evidence demonstrating that these supramolecular architectures exhibit bioactivity that emulates that of the natural systems. We review that evidence in the context of synthetic advances in the area, driven by the potential for biomedical applications. We note some design considerations for new biologically-relevant metallohelices, and give our outlook on the future of these compounds as therapeutic peptidomimetics.
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10
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Hooper CAJ, Cardo L, Craig JS, Melidis L, Garai A, Egan RT, Sadovnikova V, Burkert F, Male L, Hodges NJ, Browning DF, Rosas R, Liu F, Rocha FV, Lima MA, Liu S, Bardelang D, Hannon MJ. Rotaxanating Metallo-supramolecular Nano-cylinder Helicates to Switch DNA Junction Binding. J Am Chem Soc 2020; 142:20651-20660. [DOI: 10.1021/jacs.0c07750] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Catherine A. J. Hooper
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Lucia Cardo
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - James S. Craig
- Physical Sciences for Health Centre, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Lazaros Melidis
- Physical Sciences for Health Centre, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Aditya Garai
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Ross T. Egan
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Viktoriia Sadovnikova
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Florian Burkert
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Louise Male
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Nikolas J. Hodges
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Douglas F. Browning
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Roselyne Rosas
- Aix Marseille Univ, CNRS, Centrale Marseille, FSCM, Spectropole, Marseille 13007, France
| | - Fengbo Liu
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Fillipe V. Rocha
- Department of Chemistry, Federal University of São Carlos, São Carlos 13565-905, Brazil
| | - Mauro A. Lima
- Department of Chemistry, Federal University of São Carlos, São Carlos 13565-905, Brazil
| | - Simin Liu
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | | | - Michael J. Hannon
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
- Physical Sciences for Health Centre, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
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11
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Dong Y, Yao C, Zhu Y, Yang L, Luo D, Yang D. DNA Functional Materials Assembled from Branched DNA: Design, Synthesis, and Applications. Chem Rev 2020; 120:9420-9481. [DOI: 10.1021/acs.chemrev.0c00294] [Citation(s) in RCA: 168] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Yuhang Dong
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Chi Yao
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Yi Zhu
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Lu Yang
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Dan Luo
- Department of Biological & Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Dayong Yang
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
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12
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Li X, Shi Z, Wu J, Wu J, He C, Hao X, Duan C. Lighting up metallohelices: from DNA binders to chemotherapy and photodynamic therapy. Chem Commun (Camb) 2020; 56:7537-7548. [PMID: 32573609 DOI: 10.1039/d0cc02194f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The design of novel agents that specifically target DNA and interrupt its normal biological processes is an attractive goal in drug design. Among the promising metallodrugs, metal-directed self-assembled metallohelices with defined three-dimensional stereochemical structures display unique structure-inherent and unprecedented noncovalent targeting abilities towards DNA, resulting in excellent anticancer or antibiotic activities. A newly burgeoning hotspot is focusing on lighting them up by embedding luminescent metal ions as the vertices. The photoactive metallohelices that combine strong interactions toward DNA targets and efficient 1O2 quantum yield may provide new motivation in diagnostic and photodynamic therapy (PDT) areas. This perspective focuses on research progress on metallohelices as DNA binders and chemotherapeutic agents, and highlights recent advances in fabricating luminescent examples for PDT. The relative assembly strategies are also discussed and compared. Finally, perspectives on the future development of the lit-up metallohelices are presented.
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Affiliation(s)
- Xuezhao Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China.
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13
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McNeill SM, Giles NM, Preston D, Jones PP, Crowley JD, Giles GI. Quadruply Stranded Metallo-Supramolecular Helicate [Pd 2(hextrz) 4] 4+ Acts as a Molecular Mimic of Cytolytic Peptides. Chem Res Toxicol 2020; 33:1822-1834. [PMID: 32347099 DOI: 10.1021/acs.chemrestox.0c00061] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
[Pd2(hextrz)4]4+ is a quadruply stranded helicate, a novel bioinorganic complex designed to mimic the structure and function of proteins due to its high stability and supramolecular size. We have previously reported that [Pd2(hextrz)4]4+ exhibited cytotoxicity toward a range of cell lines, with IC50 values ranging from 3 to 10 μM. Here we demonstrate that [Pd2(hextrz)4]4+ kills cells by forming pores within the cell membrane, a mechanism of cell death analogous to the naturally occurring cytolytic peptides. [Pd2(hextrz)4]4+ induced cell death is characterized by an initial influx of Ca2+, followed by nuclear condensation and mitochondrial swelling. This is accompanied by progressive cell membrane damage that results in the formation of large blebs at the cell surface. This allows the efflux of molecules from the cell leading to loss of cell viability. These data suggest that it may be possible to design metallo-supramolecular complexes to mimic the cytotoxic action of pore forming proteins and peptides and so provide a new class of drug to treat cancer, autoimmune disorders, and microbial infection.
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Affiliation(s)
- Samantha M McNeill
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Niroshini M Giles
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Dan Preston
- Department of Chemistry, University of Otago, Dunedin, New Zealand
| | - Peter P Jones
- Department of Physiology and HeartOtago, University of Otago, Dunedin, New Zealand
| | - James D Crowley
- Department of Chemistry, University of Otago, Dunedin, New Zealand
| | - Gregory I Giles
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
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14
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Duskova K, Lejault P, Benchimol É, Guillot R, Britton S, Granzhan A, Monchaud D. DNA Junction Ligands Trigger DNA Damage and Are Synthetic Lethal with DNA Repair Inhibitors in Cancer Cells. J Am Chem Soc 2019; 142:424-435. [PMID: 31833764 DOI: 10.1021/jacs.9b11150] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Translocation of DNA and RNA polymerases along their duplex substrates results in DNA supercoiling. This torsional stress promotes the formation of plectonemic structures, including three-way DNA junction (TWJ), which can block DNA transactions and lead to DNA damage. While cells have evolved multiple mechanisms to prevent the accumulation of such structures, stabilizing TWJ through ad hoc ligands offer an opportunity to trigger DNA damage in cells with high levels of transcription and replication, such as cancer cells. Here, we develop a series of azacryptand-based TWJ ligands, we thoroughly characterize their TWJ-interacting properties in vitro and demonstrate their capacity to trigger DNA damage in rapidly dividing human cancer cells. We also demonstrate that TWJ ligands are amenable to chemically induced synthetic lethality strategies upon association with inhibitors of DNA repair, thus paving the way toward innovative drug combinations to fight cancers.
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Affiliation(s)
- Katerina Duskova
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), CNRS UMR 6302 , UBFC Dijon , 21078 Dijon , France
| | - Pauline Lejault
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), CNRS UMR 6302 , UBFC Dijon , 21078 Dijon , France
| | - Élie Benchimol
- Institut Curie, CNRS UMR 9187, INSERM U1196 , PSL Research University , 91405 Orsay , France.,Université Paris Saclay, CNRS UMR 9187, INSERM U1196 , Université Paris-Sud , 91405 Orsay , France
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), CNRS UMR 8182, Université Paris-Sud , Université Paris Saclay , 91405 Orsay , France
| | - Sébastien Britton
- Institut de Pharmacologie et de Biologie Structurale (IPBS), CNRS UMR 5089, Université de Toulouse , UPS , Equipe labellisée la Ligue Contre le Cancer , 31077 Toulouse , France
| | - Anton Granzhan
- Institut Curie, CNRS UMR 9187, INSERM U1196 , PSL Research University , 91405 Orsay , France.,Université Paris Saclay, CNRS UMR 9187, INSERM U1196 , Université Paris-Sud , 91405 Orsay , France
| | - David Monchaud
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), CNRS UMR 6302 , UBFC Dijon , 21078 Dijon , France
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15
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Zhu J, Haynes CJE, Kieffer M, Greenfield JL, Greenhalgh RD, Nitschke JR, Keyser UF. Fe II4L 4 Tetrahedron Binds to Nonpaired DNA Bases. J Am Chem Soc 2019; 141:11358-11362. [PMID: 31283214 PMCID: PMC7007224 DOI: 10.1021/jacs.9b03566] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A water-soluble self-assembled supramolecular FeII4L4 tetrahedron binds to single stranded DNA, mismatched DNA base pairs, and three-way DNA junctions. Binding of the coordination cage quenches fluorescent labels on the DNA strand, which provides an optical means to detect the interaction and allows the position of the binding site to be gauged with respect to the fluorescent label. Utilizing the quenching and binding properties of the coordination cage, we developed a simple and rapid detection method based on fluorescence quenching to detect unpaired bases in double-stranded DNA.
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Affiliation(s)
- Jinbo Zhu
- Cavendish Laboratory, University of Cambridge , JJ Thomson Avenue , Cambridge CB3 0HE , United Kingdom
| | - Cally J E Haynes
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Marion Kieffer
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Jake L Greenfield
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Ryan D Greenhalgh
- Cavendish Laboratory, University of Cambridge , JJ Thomson Avenue , Cambridge CB3 0HE , United Kingdom
| | - Jonathan R Nitschke
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Ulrich F Keyser
- Cavendish Laboratory, University of Cambridge , JJ Thomson Avenue , Cambridge CB3 0HE , United Kingdom
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16
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van Rixel VHS, Busemann A, Wissingh MF, Hopkins SL, Siewert B, van de Griend C, Siegler MA, Marzo T, Papi F, Ferraroni M, Gratteri P, Bazzicalupi C, Messori L, Bonnet S. Induction of a Four-Way Junction Structure in the DNA Palindromic Hexanucleotide 5'-d(CGTACG)-3' by a Mononuclear Platinum Complex. Angew Chem Int Ed Engl 2019; 58:9378-9382. [PMID: 31046177 PMCID: PMC6618160 DOI: 10.1002/anie.201814532] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Indexed: 12/22/2022]
Abstract
Four-way junctions (4WJs) are supramolecular DNA assemblies comprising four interacting DNA strands that in biology are involved in DNA-damage repair. In this study, a new mononuclear platinum(II) complex 1 was prepared that is capable of driving the crystallization of the DNA oligomer 5'-d(CGTACG)-3' specifically into a 4WJ-like motif. In the crystal structure of the 1-CGTACG adduct, the distorted-square-planar platinum complex binds to the core of the 4WJ-like motif through π-π stacking and hydrogen bonding, without forming any platinum-nitrogen coordination bonds. Our observations suggest that the specific molecular properties of the metal complex are crucially responsible for triggering the selective assembly of this peculiar DNA superstructure.
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Affiliation(s)
- Vincent H. S. van Rixel
- Leiden Institute of ChemistryLeiden UniversityEinsteinweg 55, PO Box 95022333CCLeidenThe Netherlands
| | - Anja Busemann
- Leiden Institute of ChemistryLeiden UniversityEinsteinweg 55, PO Box 95022333CCLeidenThe Netherlands
| | - Mathijs F. Wissingh
- Leiden Institute of ChemistryLeiden UniversityEinsteinweg 55, PO Box 95022333CCLeidenThe Netherlands
| | - Samantha L. Hopkins
- Leiden Institute of ChemistryLeiden UniversityEinsteinweg 55, PO Box 95022333CCLeidenThe Netherlands
| | - Bianka Siewert
- Leiden Institute of ChemistryLeiden UniversityEinsteinweg 55, PO Box 95022333CCLeidenThe Netherlands
| | - Corjan van de Griend
- Leiden Institute of ChemistryLeiden UniversityEinsteinweg 55, PO Box 95022333CCLeidenThe Netherlands
| | | | - Tiziano Marzo
- Department of PharmacyUniversity of PisaVia Bonanno Pisano 656126PisaItaly
| | - Francesco Papi
- Department of ChemistryUniversity of FlorenceVia della Lastruccia 350019Sesto Fiorentino (FI)Italy
| | - Marta Ferraroni
- Department of ChemistryUniversity of FlorenceVia della Lastruccia 350019Sesto Fiorentino (FI)Italy
| | - Paola Gratteri
- Department NEUROFARBA—Pharmaceutical and Nutraceutical sectionLaboratory of Molecular Modeling Cheminformatics and QSARUniversity of FlorenceVia Ugo Schiff 650019Sesto Fiorentino (FI)Italy
| | - Carla Bazzicalupi
- Department of ChemistryUniversity of FlorenceVia della Lastruccia 350019Sesto Fiorentino (FI)Italy
| | - Luigi Messori
- Department of Chemistry “Ugo Schiff”University of FlorenceItaly
| | - Sylvestre Bonnet
- Leiden Institute of ChemistryLeiden UniversityEinsteinweg 55, PO Box 95022333CCLeidenThe Netherlands
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17
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Guyon L, Pirrotta M, Duskova K, Granzhan A, Teulade-Fichou MP, Monchaud D. TWJ-Screen: an isothermal screening assay to assess ligand/DNA junction interactions in vitro. Nucleic Acids Res 2019; 46:e16. [PMID: 29149299 PMCID: PMC5815093 DOI: 10.1093/nar/gkx1118] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 10/24/2017] [Indexed: 12/17/2022] Open
Abstract
The quest for chemicals able to operate at selected genomic loci in a spatiotemporally controlled manner is desirable to create manageable DNA damages. Mounting evidence now shows that alternative DNA structures, including G-quadruplexes and branched DNA (or DNA junctions), might hamper proper progression of replication fork, thus triggering DNA damages and genomic instability. Therefore, small molecules that stabilize these DNA structures are currently scrutinized as a promising way to create genomic defects that cannot be dealt with properly by cancer cells. While much emphasis has been recently given to G-quadruplexes and related ligands, we report herein on three-way DNA junctions (TWJ) and related ligands. We first highlight the biological implications of TWJ and their strategic relevance as triggers for replicative stress. Then, we describe a new in vitro high-throughput screening assay, TWJ-Screen, which allows for identifying TWJ ligands with both high affinity and selectivity for TWJ over other DNA structures (duplexes and quadruplexes), in a convenient and unbiased manner as demonstrated by the screening of a library of 25 compounds from different chemical families. TWJ-Screen thus represents a reliable mean to uncover molecular tools able to foster replicative stress through an innovative approach, thus providing new strategic opportunities to combat cancers.
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Affiliation(s)
- Ludivine Guyon
- Institut de Chimie Moléculaire, ICMUB CNRS UMR6302, UBFC, 21078 Dijon, France
| | - Marc Pirrotta
- Institut de Chimie Moléculaire, ICMUB CNRS UMR6302, UBFC, 21078 Dijon, France
| | - Katerina Duskova
- Institut de Chimie Moléculaire, ICMUB CNRS UMR6302, UBFC, 21078 Dijon, France
| | - Anton Granzhan
- Institut Curie, PSL Research University, CNRS UMR9187, INSERM U1196, 91405 Orsay, France
| | | | - David Monchaud
- Institut de Chimie Moléculaire, ICMUB CNRS UMR6302, UBFC, 21078 Dijon, France
- To whom correspondence should be addressed. Tel: +33 380 399 043; Fax: 33 380 396 117;
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18
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Askari MS, Lachance-Brais C, Rizzuto FJ, Toader V, Sleiman H. Remote control of charge transport and chiral induction along a DNA-metallohelicate. NANOSCALE 2019; 11:11879-11884. [PMID: 31184682 DOI: 10.1039/c9nr03212f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Herein we present a new strategy to achieve chiral induction and redox switching along the backbone of metallohelicate architectures, wherein a DNA duplex directs the handedness and charge transport properties of a metal-organic assembly more than 60 bonds away (a distance of >10 nm). The quantitative and site-specific binding of copper(i) ions to DNA-templated coordination sites imparts enhanced thermodynamic stability to the assembly, while the DNA duplex transfers its natural right-handed helicity to the proximal and distal metal centers of the helicates. When copper(ii) ions are employed instead of copper(i) ions, spontaneous DNA-mediated reduction occurs, which we propose is followed by a slower change in coordination environment (from pentacoordinate CuII to tetrahedral CuI) to generate copper(i) helicates. We demonstrate that the reduction of the adjacent and distal bis-phenanthroline sites is dependent on their proximity to DNA guanine bases (which act as the electron source). The kinetics of helical charge transport can thus be tuned based on guanine-CuII separation, resulting in a sequence- and distance-dependent redox switch that transfers electronic information from DNA to multiple linearly-arranged metal centers.
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Affiliation(s)
- Mohammad S Askari
- Department of Chemistry, McGill University, 801 Sherbrooke St. W., Montreal, Quebec, Canada.
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19
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van Rixel VHS, Busemann A, Wissingh MF, Hopkins SL, Siewert B, van de Griend C, Siegler MA, Marzo T, Papi F, Ferraroni M, Gratteri P, Bazzicalupi C, Messori L, Bonnet S. Induction of a Four‐Way Junction Structure in the DNA Palindromic Hexanucleotide 5′‐d(CGTACG)‐3′ by a Mononuclear Platinum Complex. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814532] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Vincent H. S. van Rixel
- Leiden Institute of ChemistryLeiden University Einsteinweg 55, PO Box 9502 2333CC Leiden The Netherlands
| | - Anja Busemann
- Leiden Institute of ChemistryLeiden University Einsteinweg 55, PO Box 9502 2333CC Leiden The Netherlands
| | - Mathijs F. Wissingh
- Leiden Institute of ChemistryLeiden University Einsteinweg 55, PO Box 9502 2333CC Leiden The Netherlands
| | - Samantha L. Hopkins
- Leiden Institute of ChemistryLeiden University Einsteinweg 55, PO Box 9502 2333CC Leiden The Netherlands
| | - Bianka Siewert
- Leiden Institute of ChemistryLeiden University Einsteinweg 55, PO Box 9502 2333CC Leiden The Netherlands
| | - Corjan van de Griend
- Leiden Institute of ChemistryLeiden University Einsteinweg 55, PO Box 9502 2333CC Leiden The Netherlands
| | | | - Tiziano Marzo
- Department of PharmacyUniversity of Pisa Via Bonanno Pisano 6 56126 Pisa Italy
| | - Francesco Papi
- Department of ChemistryUniversity of Florence Via della Lastruccia 3 50019 Sesto Fiorentino (FI) Italy
| | - Marta Ferraroni
- Department of ChemistryUniversity of Florence Via della Lastruccia 3 50019 Sesto Fiorentino (FI) Italy
| | - Paola Gratteri
- Department NEUROFARBA—Pharmaceutical and Nutraceutical sectionLaboratory of Molecular Modeling Cheminformatics and QSARUniversity of Florence Via Ugo Schiff 6 50019 Sesto Fiorentino (FI) Italy
| | - Carla Bazzicalupi
- Department of ChemistryUniversity of Florence Via della Lastruccia 3 50019 Sesto Fiorentino (FI) Italy
| | - Luigi Messori
- Department of Chemistry “Ugo Schiff”University of Florence Italy
| | - Sylvestre Bonnet
- Leiden Institute of ChemistryLeiden University Einsteinweg 55, PO Box 9502 2333CC Leiden The Netherlands
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20
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Duskova K, Lamarche J, Amor S, Caron C, Queyriaux N, Gaschard M, Penouilh MJ, de Robillard G, Delmas D, Devillers CH, Granzhan A, Teulade-Fichou MP, Chavarot-Kerlidou M, Therrien B, Britton S, Monchaud D. Identification of Three-Way DNA Junction Ligands through Screening of Chemical Libraries and Validation by Complementary in Vitro Assays. J Med Chem 2019; 62:4456-4466. [PMID: 30942581 DOI: 10.1021/acs.jmedchem.8b01978] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The human genome is replete with repetitive DNA sequences that can fold into thermodynamically stable secondary structures such as hairpins and quadruplexes. Cellular enzymes exist to cope with these structures whose stable accumulation would result in DNA damage through interference with DNA transactions such as transcription and replication. Therefore, the chemical stabilization of secondary DNA structures offers an attractive way to foster DNA transaction-associated damages to trigger cell death in proliferating cancer cells. While much emphasis has been recently given to DNA quadruplexes, we focused here on three-way DNA junctions (TWJ) and report on a strategy to identify TWJ-targeting agents through a combination of in vitro techniques (TWJ-screen, polyacrylamide gel electrophoresis, fluorescence resonance energy transfer-melting, electrospray ionization mass spectrometry, dialysis equilibrium, and sulforhodamine B assays). We designed a complete workflow and screened 1200 compounds to identify promising TWJ ligands selected on stringent criteria in terms of TWJ-folding ability, affinity, and selectivity.
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Affiliation(s)
- Katerina Duskova
- Institut de Chimie Moléculaire (ICMUB), CNRS UMR6302, UBFC , 21078 Dijon , France
| | - Jérémy Lamarche
- Institut de Chimie Moléculaire (ICMUB), CNRS UMR6302, UBFC , 21078 Dijon , France
| | - Souheila Amor
- Lipids, Nutrition & Cancers (LNC), INSERM U1321, UBFC , 21000 Dijon , France
| | - Coralie Caron
- Institut Curie, PSL Research University, CNRS UMR9187, INSERM U1196 , 91405 Orsay , France.,Université Paris-Sud, Université Paris Saclay , 91405 Orsay , France
| | - Nicolas Queyriaux
- Laboratoire de Chimie et Biologie des Métaux , Université Grenoble Alpes, CNRS UMR5249, CEA , 38054 Grenoble , France
| | - Marie Gaschard
- Institut de Chimie , Université de Neuchâtel , CH-2000 Neuchatel , Switzerland
| | - Marie-José Penouilh
- Pôle Chimie Moléculaire (PACSMUB) , Faculté des Sciences Mirande, UBFC , 21078 Dijon , France
| | | | - Dominique Delmas
- Lipids, Nutrition & Cancers (LNC), INSERM U1321, UBFC , 21000 Dijon , France
| | - Charles H Devillers
- Institut de Chimie Moléculaire (ICMUB), CNRS UMR6302, UBFC , 21078 Dijon , France
| | - Anton Granzhan
- Institut Curie, PSL Research University, CNRS UMR9187, INSERM U1196 , 91405 Orsay , France.,Université Paris-Sud, Université Paris Saclay , 91405 Orsay , France
| | - Marie-Paule Teulade-Fichou
- Institut Curie, PSL Research University, CNRS UMR9187, INSERM U1196 , 91405 Orsay , France.,Université Paris-Sud, Université Paris Saclay , 91405 Orsay , France
| | - Murielle Chavarot-Kerlidou
- Laboratoire de Chimie et Biologie des Métaux , Université Grenoble Alpes, CNRS UMR5249, CEA , 38054 Grenoble , France
| | - Bruno Therrien
- Institut de Chimie , Université de Neuchâtel , CH-2000 Neuchatel , Switzerland
| | - Sébastien Britton
- Institut de Pharmacologie et de Biologie Structurale, IPBS, CNRS UMR5089, Université de Toulouse, UPS, équipe labellisée la Ligue Contre le Cancer , 31077 Toulouse , France
| | - David Monchaud
- Institut de Chimie Moléculaire (ICMUB), CNRS UMR6302, UBFC , 21078 Dijon , France
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21
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Singh K, Kumari S, Jana A, Bhowmick S, Das P, Das N. Self-assembled neutral [2+2] platinacycles showing minimal DNA interactions. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.09.075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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22
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Díaz DE, Llanos L, Arce P, Lorca R, Guerrero J, Costamagna J, Aravena D, Ferraudi G, Oliver A, Lappin AG, Lemus L. Steric and Electronic Factors Affecting the Conformation of Bimetallic CuI
Complexes: Effect of the Aliphatic Spacer of Tetracoordinating Schiff-Base Ligands. Chemistry 2018; 24:13839-13849. [DOI: 10.1002/chem.201802290] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Daniel E. Díaz
- Facultad de Química y Biología, Departamento de Química de los, Materiales; Universidad de Santiago de Chile; Av. Libertador Bernardo O'Higgins 3363, Estación Central Santiago Chile
| | - Leonel Llanos
- Facultad de Química y Biología, Departamento de Química de los, Materiales; Universidad de Santiago de Chile; Av. Libertador Bernardo O'Higgins 3363, Estación Central Santiago Chile
| | - Pablo Arce
- Facultad de Química y Biología, Departamento de Química de los, Materiales; Universidad de Santiago de Chile; Av. Libertador Bernardo O'Higgins 3363, Estación Central Santiago Chile
| | - Romina Lorca
- Facultad de Química y Biología, Departamento de Química de los, Materiales; Universidad de Santiago de Chile; Av. Libertador Bernardo O'Higgins 3363, Estación Central Santiago Chile
| | - Juan Guerrero
- Facultad de Química y Biología, Departamento de Química de los, Materiales; Universidad de Santiago de Chile; Av. Libertador Bernardo O'Higgins 3363, Estación Central Santiago Chile
| | - Juan Costamagna
- Facultad de Química y Biología, Departamento de Química de los, Materiales; Universidad de Santiago de Chile; Av. Libertador Bernardo O'Higgins 3363, Estación Central Santiago Chile
| | - Daniel Aravena
- Facultad de Química y Biología, Departamento de Química de los, Materiales; Universidad de Santiago de Chile; Av. Libertador Bernardo O'Higgins 3363, Estación Central Santiago Chile
| | - Guillermo Ferraudi
- Department of Chemistry and Biochemistry; University of Notre Dame; 46556-5670 Notre Dame IN USA
| | - Allen Oliver
- Department of Chemistry and Biochemistry; University of Notre Dame; 46556-5670 Notre Dame IN USA
| | - A. Graham Lappin
- Department of Chemistry and Biochemistry; University of Notre Dame; 46556-5670 Notre Dame IN USA
| | - Luis Lemus
- Facultad de Química y Biología, Departamento de Química de los, Materiales; Universidad de Santiago de Chile; Av. Libertador Bernardo O'Higgins 3363, Estación Central Santiago Chile
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23
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Casini A, Woods B, Wenzel M. The Promise of Self-Assembled 3D Supramolecular Coordination Complexes for Biomedical Applications. Inorg Chem 2017; 56:14715-14729. [PMID: 29172467 DOI: 10.1021/acs.inorgchem.7b02599] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In the supramolecular chemistry field, coordination-driven self-assembly has provided the basis for tremendous growth across many subdisciplines, spanning from fundamental investigations regarding the design and synthesis of new architectures to defining different practical applications. Within this framework, supramolecular coordination complexes (SCCs), defined as large chemical entities formed from smaller precursor building blocks of ionic metal nodes and organic multidentate ligands, resulting in intricate and well-defined supramolecular structures, hold great promise. Notably, interest in the construction of discrete 3D molecular architectures, such as those offered by SCCs, has experienced extraordinary progress because of their potential application as sensors, catalysts, probes, and containers and in basic host-guest chemistry. Despite numerous synthetic efforts and a number of inherent favorable properties, the field of 3D SCCs for biomedical applications is still in its infancy. This Viewpoint focuses on 3D SCCs, specifically metallacages and helicates, first briefly presenting the fundamentals in terms of the synthesis and characterization of their host-guest properties, followed by an overview of the possible biological applications with representative examples. Thus, emphasis will be given in particular to metallacages as drug delivery systems and to chiral helicates as DNA recognition domains. Overall, we will provide an update on the state-of-the-art literature and will define the challenges in this fascinating research area at the interface of different disciplines.
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Affiliation(s)
- Angela Casini
- School of Chemistry, Cardiff University , Main Building, Park Place, CF10 3AT Cardiff, United Kingdom
| | - Benjamin Woods
- School of Chemistry, Cardiff University , Main Building, Park Place, CF10 3AT Cardiff, United Kingdom
| | - Margot Wenzel
- School of Chemistry, Cardiff University , Main Building, Park Place, CF10 3AT Cardiff, United Kingdom
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24
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Vasdev RAS, Preston D, Scottwell SØ, Brooks HJL, Crowley JD, Schramm MP. Oxidatively Locked [Co₂L₃] 6+ Cylinders Derived from Bis(bidentate) 2-Pyridyl-1,2,3-triazole "Click" Ligands: Synthesis, Stability, and Antimicrobial Studies. Molecules 2016; 21:E1548. [PMID: 27854348 PMCID: PMC6273053 DOI: 10.3390/molecules21111548] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/04/2016] [Accepted: 11/10/2016] [Indexed: 11/17/2022] Open
Abstract
A small family of [Co₂(Lpytrz)₃]6+ cylinders was synthesised from bis(bidentate) 2-pyridyl-1,2,3-triazole "click" ligands (Lpytrz) through an "assembly-followed-by-oxidation" method. The cylinders were characterised using ¹H, 13C, and DOSY NMR, IR, and UV-Vis spectroscopies, along with electrospray ionisation mass spectrometry (ESMS). Stability studies were conducted in dimethyl sulfoxide (DMSO) and D₂O. In contrast to similar, previously studied, [Fe₂(Lpytrz)₃]4+ helicates the more kinetically inert [Co₂(Lpytrz)₃]6+ systems proved stable (over a period of days) when exposed to DMSO and were even more stable in D₂O. The triply stranded [Co₂(Lpytrz)₃]6+ systems and the corresponding "free" ligands were tested for antimicrobial activity in vitro against both Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) microorganisms. Agar-based disk diffusion and Mueller-Hinton broth micro-dilution assays showed that the [Co₂(Lpytrz)₃]6+ cylinders were not active against either strain of bacteria. It is presumed that a high charge of the [Co₂(Lpytrz)₃]6+ cylinders is preventing them from crossing the bacterial cell membranes, rendering the compounds biologically inactive.
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Affiliation(s)
- Roan A S Vasdev
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9016, Otago, New Zealand.
| | - Dan Preston
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9016, Otago, New Zealand.
| | - Synøve Ø Scottwell
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9016, Otago, New Zealand.
| | - Heather J L Brooks
- Department of Microbiology and Immunology, University of Otago, P.O. Box 56, 720 Cumberland Street, Dunedin 9054, Otago, New Zealand.
| | - James D Crowley
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9016, Otago, New Zealand.
| | - Michael P Schramm
- Department of Chemistry and Biochemistry, California State University, Long Beach, 1250 Bellflower Boulevard, Long Beach, CA 90840-9507, USA.
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25
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26
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27
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Iron(II) supramolecular helicates interfere with the HIV-1 Tat-TAR RNA interaction critical for viral replication. Sci Rep 2016; 6:29674. [PMID: 27405089 PMCID: PMC4940744 DOI: 10.1038/srep29674] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 06/21/2016] [Indexed: 01/15/2023] Open
Abstract
The interaction between the HIV-1 transactivator protein Tat and TAR (transactivation responsive region) RNA, plays a critical role in HIV-1 transcription. Iron(II) supramolecular helicates were evaluated for their in vitro activity to inhibit Tat–TAR RNA interaction using UV melting studies, electrophoretic mobility shift assay, and RNase A footprinting. The results demonstrate that iron(II) supramolecular helicates inhibit Tat-TAR interaction at nanomolar concentrations by binding to TAR RNA. These studies provide a new insight into the biological potential of metallosupramolecular helicates.
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28
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Malina J, Scott P, Brabec V. Recognition of DNA/RNA bulges by antimicrobial and antitumor metallohelices. Dalton Trans 2016. [PMID: 26212708 DOI: 10.1039/c5dt02018b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Bulged structures have been identified in nucleic acids and have been shown to be linked to biomolecular processes involved in numerous diseases. Thus, chemical agents with affinity for bulged nucleic acids are of general biological significance. Herein, the mechanism of specific recognition and stabilization of bulged DNA and RNA by helical bimetallic species was established through detailed molecular biophysics and biochemistry assays. These agents, known as 'flexicates', are potential mimetics of α-helical peptides in cancer treatment, exhibiting antimicrobial and antitumor effects. The flexicates have positive impacts on the thermal stability of DNA duplexes containing bulges, which means that the flexicates interact with the duplexes containing bulges, and that these interactions stabilize the secondary structures of these duplexes. Notably, the stabilising effect of the flexicates increases with the size of the bulge, the maximal stabilization is observed for the duplexes containing a bulge composed of at least three bases. The flexicates bind most preferentially to the bulges composed of pyrimidines flanked on both sides also by pyrimidines. It is suggested that it is so because these bulges exhibit greatest conformational variability in comparison with other combinations of bases in the bulge loop and bases flanking the bulge. Finally, the results indicate that there is only one dominant binding site for the flexicates on the DNA and RNA bulges and that the flexicates bind directly to the bulge or in its close proximity. It is also shown that the flexicates effectively bind to RNA duplexes containing the bulged region of HIV-1 TAR RNA.
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Affiliation(s)
- Jaroslav Malina
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic.
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Adamski A, Fik MA, Kubicki M, Hnatejko Z, Gurda D, Fedoruk-Wyszomirska A, Wyszko E, Kruszka D, Dutkiewicz Z, Patroniak V. Full characterization and cytotoxic activity of new silver(i) and copper(i) helicates with quaterpyridine. NEW J CHEM 2016. [DOI: 10.1039/c5nj03601a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DNA binding and cells' cycle disorders caused by four new dinuclear Ag(i) and Cu(i) double helicates with quaterpyridine ligands.
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Affiliation(s)
- Ariel Adamski
- Faculty of Chemistry
- Adam Mickiewicz University
- Poznań
- Poland
| | - Marta A. Fik
- Faculty of Chemistry
- Adam Mickiewicz University
- Poznań
- Poland
| | - Maciej Kubicki
- Faculty of Chemistry
- Adam Mickiewicz University
- Poznań
- Poland
| | | | - Dorota Gurda
- Institute of Bioorganic Chemistry
- Polish Academy of Science
- Poznań
- Poland
| | | | - Eliza Wyszko
- Institute of Bioorganic Chemistry
- Polish Academy of Science
- Poznań
- Poland
| | - Dariusz Kruszka
- Department of Chemical Technology of Drugs
- Poznań University of Medical Sciences
- Poznań
- Poland
| | - Zbigniew Dutkiewicz
- Department of Chemical Technology of Drugs
- Poznań University of Medical Sciences
- Poznań
- Poland
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30
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McNeill SM, Preston D, Lewis JEM, Robert A, Knerr-Rupp K, Graham DO, Wright JR, Giles GI, Crowley JD. Biologically active [Pd2L4](4+) quadruply-stranded helicates: stability and cytotoxicity. Dalton Trans 2015; 44:11129-36. [PMID: 25997516 DOI: 10.1039/c5dt01259g] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
There is emerging interest in the anti-proliferative effects of metallosupramolecular systems due to the different size and shape of these metallo-architectures compared to traditional small molecule drugs. Palladium(II)-containing systems are the most abundant class of metallosupramolecular complexes, yet their biological activity has hardly been examined. Here a small series of [Pd2(L)4](BF4)4 quadruply-stranded, dipalladium(II) architectures were screened for their cytotoxic effects against three cancer cell lines and one non-malignant line. The helicates exhibited a range of cytotoxic properties, with the most cytotoxic complex [Pd2(hextrz)4](BF4)4 possessing low micromolar IC50 values against all of the cell lines tested, while the other helicates displayed moderate or no cytotoxicity. Against the MDA-MB-231 cell line, which is resistant to platinum-based drugs, [Pd2(hextrz)4](BF4)4 was 7-fold more active than cisplatin. Preliminary mechanistic studies indicate that the [Pd2(hextrz)4](BF4)4 helicate does not induce cell death in the same way as clinically used metal complexes such as cisplatin. Rather than interacting with DNA, the helicate appears to disrupt the cell membrane. These studies represent the first biological characterisation of quadruply-stranded helicate architectures, and provide insight into the design requirements for the development of biologically active and stable palladium(II)-containing metallosupramolecular architectures.
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Affiliation(s)
- Samantha M McNeill
- Department of Pharmacology and Toxicology, University of Otago, P.O. Box 913, Dunedin, New Zealand.
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31
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Synthesis, structure, stability and antimicrobial activity of a ruthenium(II) helicate derived from a bis-bidentate “click” pyridyl-1,2,3-triazole ligand. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.10.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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32
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6,6″-Dimethyl-2,2′:6′,2″-terpyridine revisited: New fluorescent silver(I) helicates with in vitro antiproliferative activity via selective nucleoli targeting. Eur J Med Chem 2014; 86:456-68. [DOI: 10.1016/j.ejmech.2014.09.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 08/12/2014] [Accepted: 09/03/2014] [Indexed: 01/05/2023]
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33
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Barros SA, Chenoweth DM. Recognition of nucleic acid junctions using triptycene-based molecules. Angew Chem Int Ed Engl 2014; 53:13746-50. [PMID: 25257803 DOI: 10.1002/anie.201407061] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 10/09/2014] [Indexed: 12/24/2022]
Abstract
The modulation of nucleic acids by small molecules is an essential process across the kingdoms of life. Targeting nucleic acids with small molecules represents a significant challenge at the forefront of chemical biology. Nucleic acid junctions are ubiquitous structural motifs in nature and in designed materials. Herein, we describe a new class of structure-specific nucleic acid junction stabilizers based on a triptycene scaffold. Triptycenes provide significant stabilization of DNA and RNA three-way junctions, providing a new scaffold for the development of nucleic acid junction binders with enhanced recognition properties. Additionally, we report cytotoxicity and cell uptake data in two human ovarian carcinoma cell lines.
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Affiliation(s)
- Stephanie A Barros
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA 19104 (USA)
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34
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Barros SA, Chenoweth DM. Recognition of Nucleic Acid Junctions Using Triptycene-Based Molecules. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407061] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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35
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Wu L, Zhao C, Ren J, Qu X. Label-free Electrochemiluminescent Enantioselective Sensor for Distinguishing between Chiral Metallosupramolecular Complexes. Chemistry 2014; 20:11675-9. [DOI: 10.1002/chem.201403481] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Indexed: 02/04/2023]
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36
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Malina J, Hannon MJ, Brabec V. Recognition of DNA bulges by dinuclear iron(II) metallosupramolecular helicates. FEBS J 2014; 281:987-97. [PMID: 24355059 DOI: 10.1111/febs.12696] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Revised: 11/05/2013] [Accepted: 11/25/2013] [Indexed: 12/24/2022]
Abstract
Bulged DNA structures are of general biological significance because of their important roles in a number of biochemical processes. Compounds capable of targeting bulged DNA sequences can be used as probes for studying their role in nucleic acid function, or could even have significant therapeutic potential. The interaction of [Fe(2)L(3)](4+) metallosupramolecular helicates (L = C(25)H(20)N(4)) with DNA duplexes containing bulges has been studied by measurement of the DNA melting temperature and gel electrophoresis. This study was aimed at exploring binding affinities of the helicates for DNA bulges of various sizes and nucleotide sequences. The studies reported herein reveal that both enantiomers of [Fe(2)L(3)](4+) bind to DNA bulges containing at least two unpaired nucleotides. In addition, these helicates show considerably enhanced affinity for duplexes containing unpaired pyrimidines in the bulge and/or pyrimidines flanking the bulge on both sides. We suggest that the bulge creates the structural motif, such as the triangular prismatic pocket formed by the unpaired bulge bases, to accommodate the [Fe(2)L(3)](4+) helicate molecule, and is probably responsible for the affinity for duplexes with a varying number of bulge bases. Our results reveal that DNA bulges represent another example of unusual DNA structures recognized by dinuclear iron(II) ([Fe(2)L(3)](4+)) supramolecular helicates.
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Affiliation(s)
- Jaroslav Malina
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Brno, Czech Republic
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37
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Phongtongpasuk S, Paulus S, Schnabl J, Sigel RKO, Spingler B, Hannon MJ, Freisinger E. Binding of a Designed Anti-Cancer Drug to the Central Cavity of an RNA Three-Way Junction. Angew Chem Int Ed Engl 2013; 52:11513-6. [DOI: 10.1002/anie.201305079] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Indexed: 11/08/2022]
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38
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Phongtongpasuk S, Paulus S, Schnabl J, Sigel RKO, Spingler B, Hannon MJ, Freisinger E. Binding of a Designed Anti-Cancer Drug to the Central Cavity of an RNA Three-Way Junction. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305079] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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[Fe₂L₃]⁴⁺ cylinders derived from bis(bidentate) 2-pyridyl-1,2,3-triazole "click" ligands: synthesis, structures and exploration of biological activity. Molecules 2013; 18:6383-407. [PMID: 23760034 PMCID: PMC6290563 DOI: 10.3390/molecules18066383] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 05/16/2013] [Accepted: 05/17/2013] [Indexed: 01/21/2023] Open
Abstract
A series of metallosupramolecular [Fe2L3](BF4)4 “click” cylinders have been synthesized in excellent yields (90%–95%) from [Fe(H2O)6](BF4)2 and bis(bidentate) pyridyl-1,2,3-triazole ligands. All complexes were characterized by elemental analysis, IR, UV-vis, 1H-, 13C- and DOSY-NMR spectroscopies and, in four cases, the structures confirmed by X-ray crystallography. Molecular modeling indicated that some of these “click” complexes were of similar size and shape to related biologically active pyridylimine-based iron(II) helicates and suggested that the “click” complexes may bind both duplex and triplex DNA. Cell-based agarose diffusion assays showed that the metallosupramolecular [Fe2L3](BF4)4 “click” cylinders display no antifungal activity against S. cerevisiae. This observed lack of antifungal activity appears to be due to the poor stability of the “click” complexes in DMSO and biological media.
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40
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Sheng J, Gan J, Huang Z. Structure-based DNA-targeting strategies with small molecule ligands for drug discovery. Med Res Rev 2013; 33:1119-73. [PMID: 23633219 DOI: 10.1002/med.21278] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Nucleic acids are the molecular targets of many clinical anticancer drugs. However, compared with proteins, nucleic acids have traditionally attracted much less attention as drug targets in structure-based drug design, partially because limited structural information of nucleic acids complexed with potential drugs is available. Over the past several years, enormous progresses in nucleic acid crystallization, heavy-atom derivatization, phasing, and structural biology have been made. Many complicated nucleic acid structures have been determined, providing new insights into the molecular functions and interactions of nucleic acids, especially DNAs complexed with small molecule ligands. Thus, opportunities have been created to further discover nucleic acid-targeting drugs for disease treatments. This review focuses on the structure studies of DNAs complexed with small molecule ligands for discovering lead compounds, drug candidates, and/or therapeutics.
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Affiliation(s)
- Jia Sheng
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, USA
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41
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Stefan L, Bertrand B, Richard P, Le Gendre P, Denat F, Picquet M, Monchaud D. Assessing the Differential Affinity of Small Molecules for Noncanonical DNA Structures. Chembiochem 2012; 13:1905-12. [DOI: 10.1002/cbic.201200396] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Indexed: 01/19/2023]
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42
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Feng L, Zhao C, Xiao Y, Wu L, Ren J, Qu X. Electrochemical DNA three-way junction based sensor for distinguishing chiral metallo-supramolecular complexes. Chem Commun (Camb) 2012; 48:6900-2. [DOI: 10.1039/c2cc32496b] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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43
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Furusho Y, Miwa K, Asai R, Yashima E. Synthesis and Helical Structure of Spiroborate-Based Double-Stranded Helicate with Oligophenol Strands Bearing Bipyridine Units. Chemistry 2011; 17:13954-7. [DOI: 10.1002/chem.201102511] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2011] [Indexed: 11/11/2022]
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44
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Abstract
Methods by which helical bimetallic assemblies may be accessed as single isomers are described and reviewed. While there are a number of notable successes, the conclusion is made that no existing approach satisfies the criteria which will allow these fascinating compounds to emerge from the synthetic research laboratory environment to practical application in e.g. healthcare. For this to be achieved the compounds must be optically pure and non-racemising, soluble and chemically stable in water, readily available on a large scale, chemically diverse and synthetically robust.
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Affiliation(s)
- Suzanne E Howson
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
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45
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Vuong S, Stefan L, Lejault P, Rousselin Y, Denat F, Monchaud D. Identifying three-way DNA junction-specific small-molecules. Biochimie 2011; 94:442-50. [PMID: 21884749 DOI: 10.1016/j.biochi.2011.08.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Accepted: 08/14/2011] [Indexed: 11/26/2022]
Abstract
Three-way junction DNA (TWJ-DNA, also known as 3WJ-DNA) is an alternative secondary DNA structure comprised of three duplex-DNAs that converge towards a single point, termed the branch point. This point is characterized by unique geometrical properties that make its specific targeting by synthetic small-molecules possible. Such a targeting has already been demonstrated in the solid state but not thoroughly biophysically investigated in solution. Herein, a set of simple biophysical assays has been developed to identify TWJ-specific small-molecule ligands; these assays, inspired by the considerable body of work that has been reported to characterize the interactions between small-molecules and other higher-order DNA (notably quadruplex-DNA), have been calibrated with a known non-specific DNA binder (the porphyrin TMPyP4) and validated via the study of a small series of triazacyclononane (TACN) derivatives (metal-free or not) and the identification of a fairly-affinic and exquisitely TWJ-selective candidate (a TACN-quinoline construct named TACN-Q).
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Affiliation(s)
- Sophie Vuong
- Institut de Chimie Moléculaire de l'Université de Bourgogne, CNRS UMR5260, 9 Avenue Alain Savary, 21000 Dijon, France
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46
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Chemical and structural biology of nucleic acids and protein-nucleic acid complexes for novel drug discovery. Sci China Chem 2011. [DOI: 10.1007/s11426-010-4174-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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47
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Ducani C, Leczkowska A, Hodges NJ, Hannon MJ. Noncovalent DNA-Binding Metallo-Supramolecular Cylinders Prevent DNA Transactions in vitro. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201004471] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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48
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Ducani C, Leczkowska A, Hodges NJ, Hannon MJ. Noncovalent DNA-Binding Metallo-Supramolecular Cylinders Prevent DNA Transactions in vitro. Angew Chem Int Ed Engl 2010; 49:8942-5. [DOI: 10.1002/anie.201004471] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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49
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Wu DY, Huang W, Wu GH. Synthesis, crystal structure, and photoluminescence of a new Zn(II) molecular box compound derived from a two-armed bis-terdendate ligand. J COORD CHEM 2010. [DOI: 10.1080/00958972.2010.502226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Da-Yu Wu
- a Anhui Key Laboratory of Functional Coordination Compounds , School of Chemistry and Chemical Engineering, Anqing Normal College , Anqing 246011 , P.R. , China
| | - Wei Huang
- a Anhui Key Laboratory of Functional Coordination Compounds , School of Chemistry and Chemical Engineering, Anqing Normal College , Anqing 246011 , P.R. , China
| | - Gen-Hua Wu
- a Anhui Key Laboratory of Functional Coordination Compounds , School of Chemistry and Chemical Engineering, Anqing Normal College , Anqing 246011 , P.R. , China
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50
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Lemus L, Guerrero J, Costamagna J, Estiu G, Ferraudi G, Lappin AG, Oliver A, Noll BC. Unfolding of the [Cu2(1,3-bis(9-methyl-1,10-phenanthrolin-2-yl)propane)2]2+ Helicate. Coupling of the Chlorocarbon Dehalogenation to the Unfolding Process. Inorg Chem 2010; 49:4023-35. [DOI: 10.1021/ic9018986] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- L. Lemus
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Libertador Bernardo ÓHiggins 3363, Estación Central, Santiago, Chile
| | - J. Guerrero
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Libertador Bernardo ÓHiggins 3363, Estación Central, Santiago, Chile
| | - J. Costamagna
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Libertador Bernardo ÓHiggins 3363, Estación Central, Santiago, Chile
| | - G. Estiu
- Department of Chemistry and Biochemistry
| | | | | | - A. Oliver
- Department of Chemistry and Biochemistry
| | - B. C. Noll
- Department of Chemistry and Biochemistry
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