1
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Ibrahim N, Gan KB, Mohd Yusof NY, Goh CT, Krupa B N, Tan LL. Electrochemical genosensor based on RNA-responsive human telomeric G-quadruplex DNA: A proof-of-concept with SARS-CoV-2 RNA. Talanta 2024; 274:125916. [PMID: 38547835 DOI: 10.1016/j.talanta.2024.125916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 01/07/2024] [Accepted: 03/11/2024] [Indexed: 05/04/2024]
Abstract
In this report, a facile and label-free electrochemical RNA biosensor is developed by exploiting methylene blue (MB) as an electroactive positive ligand of G-quadruplex. The electrochemical response mechanism of the nucleic acid assay was based on the change in differential pulse voltammetry (DPV) signal of adsorbed MB on the immobilized human telomeric G-quadruplex DNA with a loop that is complementary to the target RNA. Hybridization between synthetic positive control RNA and G-quadruplex DNA probe on the transducer platform rendered a conformational change of G-quadruplex to double-stranded DNA (dsDNA), and increased the redox current of cationic MB π planar ligand at the sensing interface, thereby the electrochemical signal of the MB-adsorbed duplex is proportional to the concentration of target RNA, with SARS-CoV-2 (COVID-19) RNA as the model. Under optimal conditions, the target RNA can be detected in a linear range from 1 zM to 1 μM with a limit of detection (LOD) obtained at 0.59 zM for synthetic target RNA and as low as 1.4 copy number for positive control plasmid. This genosensor exhibited high selectivity towards SARS-CoV-2 RNA over other RNA nucleotides, such as SARS-CoV and MERS-CoV. The electrochemical RNA biosensor showed DPV signal, which was proportional to the 2019-nCoV_N_positive control plasmid from 2 to 200000 copies (R2 = 0.978). A good correlation between the genosensor and qRT-PCR gold standard was attained for the detection of SARS-CoV-2 RNA in terms of viral copy number in clinical samples from upper respiratory specimens.
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Affiliation(s)
- Nadiah Ibrahim
- Southeast Asia Disaster Prevention Research Initiative (SEADPRI), Institute for Environment and Development (LESTARI), Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Selangor Darul Ehsan, Malaysia.
| | - Kok Beng Gan
- Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Selangor Darul Ehsan, Malaysia.
| | - Nurul Yuziana Mohd Yusof
- Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Selangor Darul Ehsan, Malaysia.
| | - Choo Ta Goh
- Southeast Asia Disaster Prevention Research Initiative (SEADPRI), Institute for Environment and Development (LESTARI), Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Selangor Darul Ehsan, Malaysia.
| | - Niranjana Krupa B
- Department of Electronics and Communication Engineering, PES University, Bengaluru-85, Karnataka, India.
| | - Ling Ling Tan
- Southeast Asia Disaster Prevention Research Initiative (SEADPRI), Institute for Environment and Development (LESTARI), Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Selangor Darul Ehsan, Malaysia.
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2
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Gillard M, Bonnet H, Lartia R, Yacoub H, Dejeu J, Defrancq E, Elias B. Luminescent Ruthenium(II) Complexes Used for the Detection of 8-Oxoguanine in the Human Telomeric Sequence. Bioconjug Chem 2023; 34:414-421. [PMID: 36689988 DOI: 10.1021/acs.bioconjchem.2c00578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Detecting cancer at the early stage of the disease is crucial to keep the best chance for successful treatment. The recent development of genomic screening, a methodology that is addressed to asymptomatic patients presumably at risk of carcinogenesis, has stimulated the quest for new tools able to signal the level of risk. Carcinogenesis has been associated to chronic oxidative stress exceeding the antioxidant defenses and leading to critical genome alteration levels. The telomeric regions are presumably the most exposed to oxidative stress due to their high concentration of guanine (i.e., the easiest oxidizable nucleic base). Accumulation of 8-oxoguanine in telomeres, thus oxidative lesions, was reportedly associated with telomeric crisis and carcinogenesis. In this study, we report on the capacity of Ru(II) polyazaaromatic complexes to photoprobe 8-oxoguanine into the human telomeric sequence with the view of developing new tools for cancer risk screening.
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Affiliation(s)
- Martin Gillard
- Molecular Chemistry, Materials and Catalysis (MOST), Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Place Louis Pasteur 1, bte L4.01.02, B-1348 Louvain-la-Neuve, Belgium
| | - Hugues Bonnet
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble-Alpes (UGA), CS 40700, 38058 Grenoble, France
| | - Rémy Lartia
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble-Alpes (UGA), CS 40700, 38058 Grenoble, France
| | - Hiba Yacoub
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble-Alpes (UGA), CS 40700, 38058 Grenoble, France
| | - Jérôme Dejeu
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble-Alpes (UGA), CS 40700, 38058 Grenoble, France.,CNRS UMR-6174, FEMTO-ST Institute, Université de Bourgogne Franche-Comté, F-25000 Besançon, France
| | - Eric Defrancq
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble-Alpes (UGA), CS 40700, 38058 Grenoble, France
| | - Benjamin Elias
- Molecular Chemistry, Materials and Catalysis (MOST), Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Place Louis Pasteur 1, bte L4.01.02, B-1348 Louvain-la-Neuve, Belgium
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3
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Elgar C, Yusoh NA, Tiley PR, Kolozsvári N, Bennett LG, Gamble A, Péan EV, Davies ML, Staples CJ, Ahmad H, Gill MR. Ruthenium(II) Polypyridyl Complexes as FRET Donors: Structure- and Sequence-Selective DNA-Binding and Anticancer Properties. J Am Chem Soc 2023; 145:1236-1246. [PMID: 36607895 PMCID: PMC9853847 DOI: 10.1021/jacs.2c11111] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Ruthenium(II) polypyridyl complexes (RPCs) that emit from metal-to-ligand charge transfer (MLCT) states have been developed as DNA probes and are being examined as potential anticancer agents. Here, we report that MLCT-emissive RPCs that bind DNA undergo Förster resonance energy transfer (FRET) with Cy5.5-labeled DNA, forming mega-Stokes shift FRET pairs. Based on this discovery, we developed a simple and rapid FRET binding assay to examine DNA-binding interactions of RPCs with diverse photophysical properties, including non-"light switch" complexes [Ru(dppz)2(5,5'dmb)]2+ and [Ru(PIP)2(5,5'dmb)]2+ (dppz = dipyridophenazine, 5,5'dmb = 5,5'-dimethyl-2,2'-bipyridine, PIP = 2-phenyl-imidazo[4,5-f][1,10]phenanthroline). Binding affinities toward duplex, G-quadruplex, three-way junction, and mismatch DNA were determined, and derived FRET donor-acceptor proximities provide information on potential binding sites. Molecules characterized by this method demonstrate encouraging anticancer properties, including synergy with the PARP inhibitor Olaparib, and mechanistic studies indicate that [Ru(PIP)2(5,5'dmb)]2+ acts to block DNA replication fork progression.
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Affiliation(s)
- Christopher
E. Elgar
- Department
of Chemistry, Faculty of Science and Engineering, Swansea University, Swansea SA2 8PP, U.K.
| | - Nur Aininie Yusoh
- UPM-MAKNA
Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Paul R. Tiley
- Department
of Chemistry, Faculty of Science and Engineering, Swansea University, Swansea SA2 8PP, U.K.
| | - Natália Kolozsvári
- Department
of Chemistry, Faculty of Science and Engineering, Swansea University, Swansea SA2 8PP, U.K.
| | - Laura G. Bennett
- North
West Cancer Research Institute, School of Medical Sciences, Bangor University, Bangor LL57 2DG, U.K.
| | - Amelia Gamble
- North
West Cancer Research Institute, School of Medical Sciences, Bangor University, Bangor LL57 2DG, U.K.
| | - Emmanuel V. Péan
- SPECIFIC
IKC, Materials Science and Engineering, Faculty of Science and Engineering, Swansea University, Swansea SA1 8EN, U.K.
| | - Matthew L. Davies
- SPECIFIC
IKC, Materials Science and Engineering, Faculty of Science and Engineering, Swansea University, Swansea SA1 8EN, U.K.
| | - Christopher J. Staples
- North
West Cancer Research Institute, School of Medical Sciences, Bangor University, Bangor LL57 2DG, U.K.
| | - Haslina Ahmad
- UPM-MAKNA
Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia,Department
of Chemistry, Faculty of Science, Universiti
Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Martin R. Gill
- Department
of Chemistry, Faculty of Science and Engineering, Swansea University, Swansea SA2 8PP, U.K.,
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4
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Schlosser J, Ihmels H. Ligands for Abasic Site-containing DNA and their Use as Fluorescent Probes. Curr Org Synth 2023; 20:96-113. [PMID: 35170411 DOI: 10.2174/1570179419666220216091422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 12/16/2021] [Accepted: 12/16/2021] [Indexed: 12/16/2022]
Abstract
Apurinic and apyrimidinic sites, also referred to as abasic or AP sites, are residues of duplex DNA in which one DNA base is removed from a Watson-Crick base pair. They are formed during the enzymatic repair of DNA and offer binding sites for a variety of guest molecules. Specifically, the AP site may bind an appropriate ligand as a substitute for the missing nucleic base, thus stabilizing the abasic site-containing DNA (AP-DNA). Notably, ligands that bind selectively to abasic sites may be employed for analytical and therapeutical purposes. As a result, there is a search for structural features that establish a strong and selective association of a given ligand with the abasic position in DNA. Against this background, this review provides an overview of the different classes of ligands for abasic site-containing DNA (AP-DNA). This review covers covalently binding substrates, namely amine and oxyamine derivatives, as well as ligands that bind to AP-DNA by noncovalent association, as represented by small heterocyclic aromatic compounds, metal-organic complexes, macrocyclic cyclophanes, and intercalator-nucleobase conjugates. As the systematic development of fluorescent probes for AP-DNA has been somewhat neglected so far, this review article contains a survey of the available reports on the fluorimetric response of the ligand upon binding to the AP-DNA. Based on these data, this compilation shall present a perspective for future developments of fluorescent probes for AP-DNA.
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Affiliation(s)
- Julika Schlosser
- Department of Chemistry and Biology, University of Siegen, Center of Micro- and Nanochemistry and (Bio)Technology (Cμ), Adolf-Reichwein-Str. 2, 57068 Siegen, Germany
| | - Heiko Ihmels
- Department of Chemistry and Biology, University of Siegen, Center of Micro- and Nanochemistry and (Bio)Technology (Cμ), Adolf-Reichwein-Str. 2, 57068 Siegen, Germany
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5
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El Hage K, Ribaudo G, Lagardère L, Ongaro A, Kahn PH, Demange L, Piquemal JP, Zagotto G, Gresh N. Targeting the Major Groove of the Palindromic d(GGCGCC) 2 Sequence by Oligopeptide Derivatives of Anthraquinone Intercalators. J Chem Inf Model 2022; 62:6649-6666. [PMID: 35895094 DOI: 10.1021/acs.jcim.2c00337] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
GC-rich sequences are recurring motifs in oncogenes and retroviruses and could be targeted by noncovalent major-groove therapeutic ligands. We considered the palindromic sequence d(G1G2C3G4C5C6)2, and designed several oligopeptide derivatives of the anticancer intercalator mitoxantrone. The stability of their complexes with an 18-mer oligonucleotide encompassing this sequence in its center was validated using polarizable molecular dynamics. We report the most salient structural features of two novel compounds, having a dialkylammonium group as a side chain on both arms. The anthraquinone ring is intercalated in the central d(CpG)2 sequence with its long axis perpendicular to that of the two base pairs. On each strand, this enables each ammonium group to bind in-register to O6/N7 of the two facing G bases upstream. We subsequently designed tris-intercalating derivatives, each dialkylammonium substituted with a connector to an N9-aminoacridine intercalator extending our target range from a six- to a ten-base-pair palindromic sequence, d(C1G2G3G4C5G6C7C8C9G10)2. The structural features of the complex of the most promising derivative are reported. The present design strategy paves the way for designing intercalator-oligopeptide derivatives with even higher selectivity, targeting an increased number of DNA bases, going beyond ten.
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Affiliation(s)
- Krystel El Hage
- SABNP, Univ Evry, INSERM U1204, Université Paris-Saclay, 91000 Evry, France
| | - Giovanni Ribaudo
- Dipartimento di Medicina Molecolare e Traslazionale, Universita degli Studi di Brescia, 25123 Brescia, Italy
| | - Louis Lagardère
- LCT, UMR7616 CNRS, Sorbonne Université Paris, 75005 Paris, France
| | - Alberto Ongaro
- Dipartimento di Medicina Molecolare e Traslazionale, Universita degli Studi di Brescia, 25123 Brescia, Italy
| | | | - Luc Demange
- Université Paris Cité, CiTCoM, UMR 8038 CNRS, 75006 Paris, France
| | - Jean-Philip Piquemal
- LCT, UMR7616 CNRS, Sorbonne Université Paris, 75005 Paris, France.,The University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas 78705, United States
| | - Giuseppe Zagotto
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo, 35131 Padova, Italy
| | - Nohad Gresh
- LCT, UMR7616 CNRS, Sorbonne Université Paris, 75005 Paris, France
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6
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Satange R, Rode AB, Hou MH. Revisiting recent unusual drug-DNA complex structures: Implications for cancer and neurological disease diagnostics and therapeutics. Bioorg Med Chem 2022; 76:117094. [PMID: 36410206 DOI: 10.1016/j.bmc.2022.117094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/07/2022] [Accepted: 11/07/2022] [Indexed: 11/13/2022]
Abstract
DNA plays a crucial role in various biological processes such as protein production, replication, recombination etc. by adopting different conformations. Targeting these conformations by small molecules is not only important for disease therapy, but also improves our understanding of the mechanisms of disease development. In this review, we provide an overview of some of the most recent ligand-DNA complexes that have diagnostic and therapeutic applications in neurological diseases caused by abnormal repeat expansions and in cancer associated with mismatches. In addition, we have discussed important implications of ligands targeting higher-order structures, such as four-way junctions, G-quadruplexes and triplexes for drug discovery and DNA nanotechnology. We provide an overview of the results and perspectives of such structural studies on ligand-DNA interactions.
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Affiliation(s)
- Roshan Satange
- Institute of Genomics and Bioinformatics National Chung Hsing University, Taichung 402, Taiwan; Ph.D. Program in Medical Biotechnology, National Chung Hsing University, Taichung 402, Taiwan
| | - Ambadas B Rode
- Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, Haryana 121001, India
| | - Ming-Hon Hou
- Institute of Genomics and Bioinformatics National Chung Hsing University, Taichung 402, Taiwan; Ph.D. Program in Medical Biotechnology, National Chung Hsing University, Taichung 402, Taiwan; Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 402, Taiwan; Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan.
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7
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Pramanik S, Mahato P, Pramanik U, Nandy A, Khamari L, Shrivastava S, Rai S, Mukherjee S. DNA-Templated Modulation in the Photophysical Properties of a Fluorescent Molecular Rotor Auramine O by Varying the DNA Composition. J Phys Chem B 2022; 126:2658-2668. [PMID: 35357836 DOI: 10.1021/acs.jpcb.2c00172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
This work delineates an integrative approach combining spectroscopic and computational studies to decipher the association-induced fluorescence properties of a fluorescent molecular rotor, viz., auramine O (AuO), after interacting with 20-mer duplex DNA having diverse well-matched base pairs. While exploring the scarcely explored sequence-dependent interaction mechanism of AuO and DNA, we observed that DNA could act as a conducive scaffold to the formation of AuO dimer through noncovalent interactions at lower molecular density. The photophysical properties of AuO depend on the nucleotide compositions as described from sequence-dependent shifting in the emission and absorption maxima. Furthermore, we explored such DNA base pair-dependent fluorescence spectral characteristics of AuO toward discriminating the thermodynamically most stable single nucleotide mismatch in a 20-mer sequence. Our results are interesting and could be useful in developing analogues with further enhanced emission properties toward mismatched DNA sequences.
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Affiliation(s)
- Srikrishna Pramanik
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462 066, Madhya Pradesh, India
| | - Paritosh Mahato
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462 066, Madhya Pradesh, India
| | - Ushasi Pramanik
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462 066, Madhya Pradesh, India
| | - Atanu Nandy
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462 066, Madhya Pradesh, India
| | - Laxmikanta Khamari
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462 066, Madhya Pradesh, India
| | - Shivam Shrivastava
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462 066, Madhya Pradesh, India
| | - Saurabh Rai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462 066, Madhya Pradesh, India
| | - Saptarshi Mukherjee
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462 066, Madhya Pradesh, India
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8
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Prajith NU, Priyanka PV, Alexander V. Synthesis, characterization, photophysical, lipophilicity, and in vitro fluorescence studies of mono-, di-, and trinuclear Ru(II) polypyridyl complexes of pyridinyl benzimidazole derivatives. J Biol Inorg Chem 2022; 27:357-372. [PMID: 35262796 DOI: 10.1007/s00775-022-01934-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 02/14/2022] [Indexed: 11/27/2022]
Abstract
The synthesis, characterization, and photophysical properties of mononuclear ruthenium(II) complexes [Ru(bpy)2(py-BIm-Bz)](ClO4)2 (1) and [Ru(phen)2(py-BIm-Bz)](ClO4)2 (2), dinuclear complexes [(bpy)2Ru-μ2-(py-BIm-Xy)-Ru(bpy)2](ClO4)4 (3) and [(phen)2Ru-μ2-(py-BIm-Xy)-Ru(phen)2](ClO4)4 (4), and trinuclear complexes [((bpy)2Ru)3-μ3-(py-BIm-Ms)](ClO4)6 (5) and [((phen)2Ru)3-μ3-(py-BIm-Ms)](ClO4)6 (6) of pyridinyl benzimidazole ligands with 2,2'-bipyridine or 1,10-phenanthroline ancillary ligands as fluorescent imaging probes are reported. The ligand py-BIm-Bz crystallizes with inherent disorder due to the competing π-π interactions between two (2-pyridinyl)benzimidazole moieties aligned in parallel and in the opposite direction. The complex 2 forms non-merohedrally twinned crystal with the twin law matrix [0.259 -0.776 0.741, 0.000 -1.000 0.000, 1.259 -0.776 -0.259] and a batch scale factor (BASF) of 0.05. The electronic absorption spectra of the complexes 1-6 differ typically in the π-π* transitions of the ancillary ligands. The complexes exhibit orange-red fluorescence at 624-634 nm at room temperature with quantum yield (0.096 - 0.117) higher than that of [Ru(bpy)3]2+ and a hypsochromic shift of the emission maxima in frozen acetonitrile (λem = 613-628 nm) due to the rigidochromic effect. The excited state lifetime of these complexes are in the range 72-194 ns with the mononuclear complexes exhibiting the highest values. The complexes 1-6 are nontoxic (IC50 > 275 μM) toward both HeLa and Vero cell lines. They are hydrophilic and the logPo/w values are in the -0.53 to -1.46 range. The confocal microscopic study of cellular localization of the complexes on the HeLa cells co-stained with the nuclear staining DAPI dye shows their localization in the cytoplasm and the nuclear membrane penetration increases with nuclearity.
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Affiliation(s)
- N U Prajith
- Department of Chemistry, Loyola College, Chennai, 600034, India
| | - P V Priyanka
- Department of Chemistry, Loyola College, Chennai, 600034, India
| | - V Alexander
- Department of Chemistry, Loyola College, Chennai, 600034, India.
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9
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Understanding the role of ancillary ligands in the interaction of Ru(II) complexes with covalent arylamine-DNA adducts. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Obitz D, Miller RG, Metzler-Nolte N. Synthesis and DNA interaction studies of Ru(II) cell penetrating peptide (CPP) bioconjugates. Dalton Trans 2021; 50:13768-13777. [PMID: 34549219 DOI: 10.1039/d1dt01776d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The synthesis of the first bioconjugates of a set of ruthenium(II) dipyridophenazine complexes with two different cell penetrating peptides (CPPs) is described. The CPPs, an arginine rich TAT-9 (RKKRRQRRR) sequence and the Xentry peptide (LCLRPVG), were synthesized using standard SPPS protocols, and the bioconjugates were obtained by the microwave-assisted coupling of the HOBt/TBTU preactivated metal complexes with the respective peptides on Wang resin. The racemic metal complexes were obtained by modified literature procedures. The bioconjugates were cleaved from the resin, purified by semi-preparative HPLC and characterized by analytical HPLC, high resolution mass spectrometry (HR-MS), and NMR spectroscopy. Despite the bioconjugation of the peptides to the dppz ligand, DNA intercalation was observed by CD spectroscopy, viscometry and the characteristic switch-on fluorescence of this class of compounds. Furthermore, the cellular uptake of the Xentry bioconjugates was confirmed by live cell imaging. Like the parent metal complexes, the bioconjugates show low in vitro cytotoxicity (IC50 > 80 μM), which is similar to the respective metal complexes alone.
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Affiliation(s)
- Daniel Obitz
- Inorganic Chemistry I - Bioinorganic Chemistry, Ruhr-University Bochum, Universitaetsstrasse 150, 44780 Bochum, Germany.
| | - Reece G Miller
- Inorganic Chemistry I - Bioinorganic Chemistry, Ruhr-University Bochum, Universitaetsstrasse 150, 44780 Bochum, Germany.
| | - Nils Metzler-Nolte
- Inorganic Chemistry I - Bioinorganic Chemistry, Ruhr-University Bochum, Universitaetsstrasse 150, 44780 Bochum, Germany.
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11
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Wu SH, Yang R, Sun B, Tang JH, Gong ZL, Ma J, Wang L, Liu J, Ma DX, Shao JY, Zhong YW. Dual-Emissive Tris-Heteroleptic Ruthenium Complexes: Tuning the DNA-Triggered Ratiometric Emission Response by Ancillary Ligands. Inorg Chem 2021; 60:14810-14819. [PMID: 34546744 DOI: 10.1021/acs.inorgchem.1c02077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Three tris-heteroleptic mononuclear Ru(II) complexes with dual fluorescence and phosphorescence-[Ru(dpma)(bpy)(phen)]2+ (12+), [Ru(dpma)(bpy)(dppz)]2+ (22+), and [Ru(dpma)(phen)(dppz)]2+ (32+)-have been designed and used as ratiometric light-response probes for DNA, where dpma is di(pyrid-2-yl)(methyl)-amine, bpy is 2,2'-bipyridine, phen is 1,10-phenanthroline, and dppz is dipyridophenazine, respectively. Single crystals of complex 2(PF6)2 have been obtained and studied by X-ray analysis. The interactions of these complexes with different DNAs are investigated by means of spectroscopic methods, viscosity measurements, and molecular modeling. In the presence of calf thymus DNA, complexes 2(PF6)2 and 3(PF6)2 show the emergence of a new lower-energy phosphorescence emission band; meanwhile, the higher-energy fluorescence emission band is essentially unchanged, functioning as an intrinsic internal reference. These two complexes exhibit stronger preference for calf thymus DNA over single-strand DNA (d(A)16 and d(C)16). In contrast, no binding interaction between 1(PF6)2 and calf thymus DNA is observed. The intrinsic binding constants (Kb) of 2(PF6)2 and 3(PF6)2 with calf thymus DNA are determined to be (1.4 ± 0.4) × 105 and (9.5 ± 0.15) × 104 M-1, respectively. In addition, these spectroscopic results are compared with those of the prototype complex [Ru(bpy)2(dppz)]2+ (42+), and density functional theory and time-dependent density functional theory calculations are employed to elucidate these experimental findings.
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Affiliation(s)
- Si-Hai Wu
- School of Medicine, Huaqiao University, Quanzhou, Fujian 362021, China
| | - Rong Yang
- School of Medicine, Huaqiao University, Quanzhou, Fujian 362021, China
| | - Bin Sun
- Institute of BioPharmaceutical Research, Liaocheng University, Liaocheng 252000, China
| | - Jian-Hong Tang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhong-Liang Gong
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Junjie Ma
- School of Medicine, Huaqiao University, Quanzhou, Fujian 362021, China
| | - Lianhui Wang
- School of Medicine, Huaqiao University, Quanzhou, Fujian 362021, China
| | - Jieqing Liu
- School of Medicine, Huaqiao University, Quanzhou, Fujian 362021, China
| | - Dian-Xue Ma
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jiang-Yang Shao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yu-Wu Zhong
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
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12
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Man Ngo F, Tse ECM. Bioinorganic Platforms for Sensing, Biomimicry, and Energy Catalysis. CHEM LETT 2021. [DOI: 10.1246/cl.200875] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Fung Man Ngo
- Department of Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, University of Hong Kong, Hong Kong SAR, P. R. China
- Advanced Functional Materials Laboratory, HKU Zhejiang Institute of Research and Innovation, Zhejiang 311305, P. R. China
| | - Edmund C. M. Tse
- Department of Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, University of Hong Kong, Hong Kong SAR, P. R. China
- Advanced Functional Materials Laboratory, HKU Zhejiang Institute of Research and Innovation, Zhejiang 311305, P. R. China
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13
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Dayanidhi PD, Vaidyanathan VG. Structural insights into the recognition of DNA defects by small molecules. Dalton Trans 2021; 50:5691-5712. [PMID: 33949406 DOI: 10.1039/d0dt04289g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Studies on the binding interaction of small molecules and nucleic acids have been explored for their biological applications. With excellent photophysical/chemical properties, numerous metal complexes have been studied as structural probes for nucleic acids. The recognition of DNA defects is of high importance due to their association with various types of cancers. Small molecules that target DNA defects in a specific and selective manner offer a new avenue for developing novel drugs and diagnostic tools. Transition metal complexes have been studied as probes for abasic sites and DNA/RNA mismatches. By changing the ligand structure or metal center, the probing efficiency of the metal complexes varies towards the defects. In this perspective, we have discussed mainly the structural requirement of metal complexes as probes for abasic sites, mismatches, and covalent DNA adducts, followed by the challenges and future directions.
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Affiliation(s)
- P David Dayanidhi
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India. and Advanced Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India
| | - V G Vaidyanathan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India. and Advanced Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India
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14
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Kougioumtzi A, Chatziathanasiadou MV, Vrettos EI, Sayyad N, Sakka M, Stathopoulos P, Mantzaris MD, Ganai AM, Karpoormath R, Vartholomatos G, Tsikaris V, Lazarides T, Murphy C, Tzakos AG. Development of novel GnRH and Tat 48-60 based luminescent probes with enhanced cellular uptake and bioimaging profile. Dalton Trans 2021; 50:9215-9224. [PMID: 34125130 DOI: 10.1039/d1dt00060h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
There is a clear need to develop photostable chromophores for bioimaging with respect to the classically utilized green fluorescent dye fluorescein. Along these lines, we utilized a phosphorescent carboxy-substituted ruthenium(ii) polypyridyl [Ru(bipy)2(mcb)]2+ (bipy = 2,2'-bipyridyl and mcb = 4-carboxy-4'-methyl-2,2'-bipyridyl) complex. We developed two luminescent peptide conjugates of the cell-penetrating peptide Tat48-60 consisting of either [Ru(bipy)2(mcb)]2+ or 5(6)-carboxyfluorescein (5(6)-FAM) tethered on the Lys50 of the peptide through amide bond. We confirmed the efficient cellular uptake of both bioconjugates in HeLa cells by confocal microscopy and flow cytometry and proved that the ruthenium-based chromophore possesses enhanced photostability compared to a 5(6)-FAM-based peptide, after continuous laser scanning. Furthermore, we designed and developed a luminescent agent with high photostability, based on the ruthenium core, that could be selectively localized in cancer cells overexpressing the GnRH receptor (GnRH-R). To achieve this, we took advantage of the tumor-homing character of d-Lys6-GnRH which selectively recognizes the GnRH-R. The [Ru(bipy)2(mcb)]2+-d-Lys6-GnRH peptide conjugate was synthesized, and its cellular uptake was evaluated through flow cytometric analysis and live-cell imaging in HeLa and T24 bladder cancer cells as negative and positive controls of GnRH-R, respectively. Besides the selective targeting that the specific conjugate could offer, we also recorded high internalization levels in T24 bladder cancer cells. The ruthenium(ii) polypyridyl peptide-based conjugates we developed is an intriguing approach that offers targeted cell imaging in the Near Infrared region, and simultaneously paves the way for further advancements in the dynamic studies on cellular imaging.
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Affiliation(s)
- Anastasia Kougioumtzi
- Institute of Molecular Biology & Biotechnology, Foundation of Research and Technology-Hellas, Department of Biomedical Research, University Campus, 45110 Ioannina, Greece
| | - Maria V Chatziathanasiadou
- University of Ioannina, Department of Chemistry, Section of Organic Chemistry and Biochemistry, 45110, Ioannina, Greece.
| | - Eirinaios I Vrettos
- University of Ioannina, Department of Chemistry, Section of Organic Chemistry and Biochemistry, 45110, Ioannina, Greece.
| | - Nisar Sayyad
- University of Ioannina, Department of Chemistry, Section of Organic Chemistry and Biochemistry, 45110, Ioannina, Greece.
| | - Mariana Sakka
- University of Ioannina, Department of Chemistry, Section of Organic Chemistry and Biochemistry, 45110, Ioannina, Greece.
| | - Panagiotis Stathopoulos
- University of Ioannina, Department of Chemistry, Section of Organic Chemistry and Biochemistry, 45110, Ioannina, Greece.
| | - Michalis D Mantzaris
- Institute of Molecular Biology & Biotechnology, Foundation of Research and Technology-Hellas, Department of Biomedical Research, University Campus, 45110 Ioannina, Greece
| | - Ab Majeed Ganai
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Rajshekhar Karpoormath
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Georgios Vartholomatos
- Hematology Laboratory, Unit of Molecular Biology, University Hospital of Ioannina, Ioannina, 45110 Greece
| | - Vassilios Tsikaris
- University of Ioannina, Department of Chemistry, Section of Organic Chemistry and Biochemistry, 45110, Ioannina, Greece.
| | - Theodore Lazarides
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Carol Murphy
- Institute of Molecular Biology & Biotechnology, Foundation of Research and Technology-Hellas, Department of Biomedical Research, University Campus, 45110 Ioannina, Greece
| | - Andreas G Tzakos
- University of Ioannina, Department of Chemistry, Section of Organic Chemistry and Biochemistry, 45110, Ioannina, Greece. and University Research Center of Ioannina (URCI), Institute of Materials Science and Computing, Ioannina, Greece
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15
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Luminescent ruthenium(II)-para-cymene complexes of aryl substituted imidazo-1,10-phenanthroline as anticancer agents and the effect of remote substituents on cytotoxic activities. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120066] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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16
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Li M, Hsu YP, Liu YH, Peng SM, Liu ST. Iridium complexes with ligands of 1,8-Naphthyridine-2-carboxylic acid derivatives-preparation and catalysis. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Gill MR, Walker MG, Able S, Tietz O, Lakshminarayanan A, Anderson R, Chalk R, El-Sagheer AH, Brown T, Thomas JA, Vallis KA. An 111In-labelled bis-ruthenium(ii) dipyridophenazine theranostic complex: mismatch DNA binding and selective radiotoxicity towards MMR-deficient cancer cells. Chem Sci 2020; 11:8936-8944. [PMID: 33815738 PMCID: PMC7989384 DOI: 10.1039/d0sc02825h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/04/2020] [Indexed: 12/23/2022] Open
Abstract
Theranostic radionuclides that emit Auger electrons (AE) can generate highly localised DNA damage and the accompanying gamma ray emission can be used for single-photon emission computed tomography (SPECT) imaging. Mismatched DNA base pairs (mismatches) are DNA lesions that are abundant in cells deficient in MMR (mismatch mediated repair) proteins. This form of genetic instability is prevalent in the MMR-deficient subset of colorectal cancers and is a potential target for AE radiotherapeutics. Herein we report the synthesis of a mismatch DNA binding bis-ruthenium(ii) dipyridophenazine (dppz) complex that can be radiolabelled with the Auger electron emitting radionuclide indium-111 (111In). Greater stabilisation accompanied by enhanced MLCT (metal to ligand charge-transfer) luminescence of both the bis-Ru(dppz) chelator and non-radioactive indium-loaded complex was observed in the presence of a TT mismatch-containing duplex compared to matched DNA. The radioactive construct [111In]In-bisRu(dppz) ([111In][In-2]4+) targets cell nuclei and is radiotoxic towards MMR-deficient human colorectal cancer cells showing substantially less detrimental effects in a paired cell line with restored MMR function. Additional cell line studies revealed that [111In][In-2]4+ is preferentially radiotoxic towards MMR-deficient colorectal cancer cells accompanied by increased DNA damage due to 111In decay. The biodistribution of [111In][In-2]4+ in live mice was demonstrated using SPECT. These results illustrate how a Ru(ii) polypyridyl complex can incorporate mismatch DNA binding and radiometal chelation in a single molecule, generating a DNA-targeting AE radiopharmaceutical that displays selective radiotoxicity towards MMR-deficient cancer cells and is compatible with whole organism SPECT imaging.
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Affiliation(s)
- Martin R Gill
- Oxford Institute for Radiation Oncology , Department of Oncology , University of Oxford , Oxford , UK .
- Department of Chemistry , Swansea University , Swansea , Wales , UK .
| | - Michael G Walker
- Department of Chemistry , University of Sheffield , Sheffield , UK
| | - Sarah Able
- Oxford Institute for Radiation Oncology , Department of Oncology , University of Oxford , Oxford , UK .
| | - Ole Tietz
- Oxford Institute for Radiation Oncology , Department of Oncology , University of Oxford , Oxford , UK .
| | - Abirami Lakshminarayanan
- Oxford Institute for Radiation Oncology , Department of Oncology , University of Oxford , Oxford , UK .
- Chemistry Research Laboratory , Department of Chemistry , University of Oxford , Oxford OX1 3TA , UK
| | - Rachel Anderson
- Oxford Institute for Radiation Oncology , Department of Oncology , University of Oxford , Oxford , UK .
| | - Rod Chalk
- Structural Genomics Consortium , University of Oxford , Oxford , UK
| | - Afaf H El-Sagheer
- Chemistry Research Laboratory , Department of Chemistry , University of Oxford , Oxford OX1 3TA , UK
- Chemistry Branch , Department of Science and Mathematics , Faculty of Petroleum and Mining Engineering , Suez University , Suez 43721 , Egypt
| | - Tom Brown
- Chemistry Research Laboratory , Department of Chemistry , University of Oxford , Oxford OX1 3TA , UK
| | - Jim A Thomas
- Department of Chemistry , University of Sheffield , Sheffield , UK
| | - Katherine A Vallis
- Oxford Institute for Radiation Oncology , Department of Oncology , University of Oxford , Oxford , UK .
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18
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Keane PM, O'Sullivan K, Poynton FE, Poulsen BC, Sazanovich IV, Towrie M, Cardin CJ, Sun XZ, George MW, Gunnlaugsson T, Quinn SJ, Kelly JM. Understanding the factors controlling the photo-oxidation of natural DNA by enantiomerically pure intercalating ruthenium polypyridyl complexes through TA/TRIR studies with polydeoxynucleotides and mixed sequence oligodeoxynucleotides. Chem Sci 2020; 11:8600-8609. [PMID: 34123120 PMCID: PMC8163394 DOI: 10.1039/d0sc02413a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Ruthenium polypyridyl complexes which can sensitise the photo-oxidation of nucleic acids and other biological molecules show potential for photo-therapeutic applications. In this article a combination of transient visible absorption (TrA) and time-resolved infra-red (TRIR) spectroscopy are used to compare the photo-oxidation of guanine by the enantiomers of [Ru(TAP)2(dppz)]2+ in both polymeric {poly(dG-dC), poly(dA-dT) and natural DNA} and small mixed-sequence duplex-forming oligodeoxynucleotides. The products of electron transfer are readily monitored by the appearance of a characteristic TRIR band centred at ca. 1700 cm−1 for the guanine radical cation and a band centered at ca. 515 nm in the TrA for the reduced ruthenium complex. It is found that efficient electron transfer requires that the complex be intercalated at a G-C base-pair containing site. Significantly, changes in the nucleobase vibrations of the TRIR spectra induced by the bound excited state before electron transfer takes place are used to identify preferred intercalation sites in mixed-sequence oligodeoxynucleotides and natural DNA. Interestingly, with natural DNA, while it is found that quenching is inefficient in the picosecond range, a slower electron transfer process occurs, which is not found with the mixed-sequence duplex-forming oligodeoxynucleotides studied. Efficient electron transfer requires the complex to be intercalated at a G-C base-pair. Identification of preferred intercalation sites is achieved by TRIR monitoring of the nucleobase vibrations before electron transfer.![]()
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Affiliation(s)
- Páraic M Keane
- School of Chemistry, Trinity College Dublin, The University of Dublin Dublin 2 Ireland .,School of Chemistry, University of Reading RG6 6AD UK
| | - Kyra O'Sullivan
- School of Chemistry, Trinity College Dublin, The University of Dublin Dublin 2 Ireland
| | - Fergus E Poynton
- School of Chemistry, Trinity College Dublin, The University of Dublin Dublin 2 Ireland .,Trinity Biomedical Sciences Institute, The University of Dublin Pearse St. Dublin 2 Ireland
| | - Bjørn C Poulsen
- School of Chemistry, Trinity College Dublin, The University of Dublin Dublin 2 Ireland .,Trinity Biomedical Sciences Institute, The University of Dublin Pearse St. Dublin 2 Ireland
| | - Igor V Sazanovich
- Central Laser Facility, Research Complex at Harwell, Science and Technology Facilities Council, Rutherford Appleton Laboratories OX11 0QX UK
| | - Michael Towrie
- Central Laser Facility, Research Complex at Harwell, Science and Technology Facilities Council, Rutherford Appleton Laboratories OX11 0QX UK
| | | | - Xue-Zhong Sun
- School of Chemistry, University of Nottingham NG7 2RD UK
| | - Michael W George
- School of Chemistry, University of Nottingham NG7 2RD UK.,Department of Chemical and Environmental Engineering, The University of Nottingham Ningbo China 199 Taikang East Road Ningbo 315100 China
| | - Thorfinnur Gunnlaugsson
- School of Chemistry, Trinity College Dublin, The University of Dublin Dublin 2 Ireland .,Trinity Biomedical Sciences Institute, The University of Dublin Pearse St. Dublin 2 Ireland
| | - Susan J Quinn
- School of Chemistry, University College Dublin Dublin 4 Ireland
| | - John M Kelly
- School of Chemistry, Trinity College Dublin, The University of Dublin Dublin 2 Ireland
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19
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Spence P, Fielden J, Waller ZAE. Beyond Solvent Exclusion: i-Motif Detecting Capability and an Alternative DNA Light-Switching Mechanism in a Ruthenium(II) Polypyridyl Complex. J Am Chem Soc 2020; 142:13856-13866. [DOI: 10.1021/jacs.0c04789] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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20
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Elmes RBP, Ryan GJ, Erby ML, Frimannsson DO, Kitchen JA, Lawler M, Williams DC, Quinn SJ, Gunnlaugsson T. Synthesis, Characterization, and Biological Profiling of Ruthenium(II)-Based 4-Nitro- and 4-Amino-1,8-naphthalimide Conjugates. Inorg Chem 2020; 59:10874-10893. [DOI: 10.1021/acs.inorgchem.0c01395] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Robert B. P. Elmes
- Department of Chemistry, Maynooth University, National University of Ireland, Maynooth W23 F2K8, County Kildare, Ireland
- Synthesis and Solid State Pharmaceutical Centre (SSPC), Limerick, County Limerick, Ireland
| | - Gary J. Ryan
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin (TCD), The University of Dublin, Dublin 2, Ireland
| | - Maria Luisa Erby
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
| | - Daniel O. Frimannsson
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin (TCD), The University of Dublin, Dublin 2, Ireland
- School of Medicine, Institute of Molecular Medicine, St. James’s Hospital, Trinity College Dublin, Dublin 8, Ireland
| | - Jonathan A. Kitchen
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin (TCD), The University of Dublin, Dublin 2, Ireland
- Chemistry, School of Natural and Computational Sciences, Massey University, Auckland 0745, New Zealand
| | - Mark Lawler
- Institute for Health Sciences, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University of Belfast, Belfast BT9 7BL, Northern Ireland
| | - D. Clive Williams
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
| | - Susan J. Quinn
- School of Chemistry, University College Dublin, Dublin 4, Ireland
- Synthesis and Solid State Pharmaceutical Centre (SSPC), Limerick, County Limerick, Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin (TCD), The University of Dublin, Dublin 2, Ireland
- Synthesis and Solid State Pharmaceutical Centre (SSPC), Limerick, County Limerick, Ireland
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21
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Luminescent anticancer Ru(II)-arenebipyridine and phenanthroline complexes: Synthesis, characterization, DFT studies, biological interactions and cellular imaging application. J Inorg Biochem 2020; 208:111099. [PMID: 32460056 DOI: 10.1016/j.jinorgbio.2020.111099] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/02/2020] [Accepted: 05/02/2020] [Indexed: 12/11/2022]
Abstract
A series of ruthenium(II)-arene complexes of several bipyridine and phenanthroline derivatives have been synthesized by employing a green and efficient protocol involving water as a solvent under sonication. The structures of all the complexes were elucidated by the spectroscopic analysis. The geometry of the chlorido and PTA (1,3,5-Triaza-7-phosphaadamantane) complexes were further confirmed by DFT and single crystal XRD. The stability study in various solvents, specifically in the intracellular one was conducted. Most of the compounds exhibited significant potency and selectivity against MCF7 and HeLa cell lines with respect to normal HEK-293 cells compared to cisplatin and RAPTA-C (Ruthenium(II)-arene PTA complex). Complex [(η6-hexamethylbenzene)RuCl(κ2-N,N-4,4'-di-n-nonyl-2,2'-bpy)]Cl (3e) presented best anticancer profiles against all the human cancer cells. Interestingly, few complexes turned up to be highly fluorescent depicted by the quantum yield values. Remarkably, [(η6-p-cymene)RuCl(κ2-N,N-bpy)]Cl (3i) was identified as most significant anticancer theranostic agent interms of potency, selectivity and fluorescence quantum yield. This complex also represented itself as significant cellular imaging agent in live U-87 MG cells which was monitored by confocal microscope. Absorption and emission spectral studies of bypyridine and phenanthroline complex series revealed that the complexes interacted with calf thymus DNA through groove binding as well as intercalative mode. In addition to this, strong binding efficacy of these scaffolds wih BSA (Bovin Serum Albumin) also enhanced their transportation property inside the cells.
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22
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Goodchild SA, Gao R, Shenton DP, McIntosh AJS, Brown T, Bartlett PN. Direct Detection and Discrimination of Nucleotide Polymorphisms Using Anthraquinone Labeled DNA Probes. Front Chem 2020; 8:381. [PMID: 32478035 PMCID: PMC7235368 DOI: 10.3389/fchem.2020.00381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 04/14/2020] [Indexed: 02/04/2023] Open
Abstract
A novel electrochemical detection approach using DNA probes labeled with Anthraquinone (AQ) as a reporter moiety has been successfully exploited as a method for the direct detection of DNA targets. This assay uses simple voltammetry techniques (Differential Pulse Voltammetry) to exploit the unique responsiveness of AQ to its chemical environments within oxygenated aqueous buffers, providing a specific detection mechanism as a result of DNA hybridization. This measurement is based on a cathodic shift of the reduction potential of the AQ tag and the concurrent reduction in peak current upon DNA binding. The further utility of this approach for discrimination of closely related DNA targets is demonstrated using DNA strands specific to B. anthracis and closely related bacillus species. DNA targets were designed to the rpoB gene incorporating nucleotide polymorphisms associated with different bacillus species. This assay was used to demonstrate that the shift in reduction potential is directly related to the homology of the target DNA. The discriminatory mechanism is dependent on the presence of oxygen in the measurement buffer and is strongly linked to the position of the nucleotide polymorphisms; with homology at the terminus carrying the AQ functionalised nucleotide critical to achieving accurate discrimination. This understanding of assay design was used to demonstrate an optimized assay capable of discriminating between Yersinia pestis (the causative agent of plague) and closely related species based on the groEL gene. This method is attractive as it can not only detect DNA binding, but can also discriminate between multiple Single Nucleotide Polymorphisms (SNPs) within that DNA without the need for any additional reagents, reporters, or processes such as melting of DNA strands. This indicates that this approach may have great potential to be exploited within novel biosensors for detection and diagnosis of infectious disease in future Point of Care (PoC) devices.
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Affiliation(s)
- Sarah A Goodchild
- Defence Science and Technology Laboratory, Salisbury, United Kingdom.,University of Southampton, Southampton, United Kingdom
| | - Rachel Gao
- University of Southampton, Southampton, United Kingdom
| | - Daniel P Shenton
- Defence Science and Technology Laboratory, Salisbury, United Kingdom
| | | | - Tom Brown
- Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - Philip N Bartlett
- Defence Science and Technology Laboratory, Salisbury, United Kingdom
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23
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Paul Elisa DD, Vaidyanathan Ganesan V. Switch-on effect on conformation-specific arylamine-DNA adduct by cyclometalated Ir(III) complexes. J Biol Inorg Chem 2020; 25:305-310. [PMID: 32052177 DOI: 10.1007/s00775-020-01762-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 02/06/2020] [Indexed: 12/23/2022]
Abstract
Arylamines are known to form covalent-DNA adducts upon metabolic activation. These covalent adducts adopt different conformational attributes, viz., major groove (B), stacked (S), and minor groove (W), and lead to different types of mutations. The conformation depends on the flanking and next flanking bases at the 3' position of the adduct. Early detection of these conformations by simple probes is an ideal and challenging task. Here, we have reported two Ir(III)-based cyclometalated complexes, viz., [Ir(ppy)2(imiphen)]+ (1) (ppy: 2-phenylpyridine; imiphen: 2-(1H-imidazol-2-yl)-1H-imidazo[4,5-f][1,10]phenanthroline) and [Ir(ppy)2(furphen)]+ (2) (furphen: 2-(furan-2-yl)-1H-imidazo[4,5-f][1,10]phenanthroline) and its interaction with N-acetyl-2-aminofluorene-dG (AAF-dG). The sequences used in this work are NarI sequence (-CG1G2CG3CX-) in which Gs are modified with AAF and X is either C or T. Luminescence studies reveal that the Ir(III) complexes bind to AAF-dG adduct with high specificity toward G1 and G3 compared to G2 and unmodified control. The selectivity also depends on the next flanking base as cytosine favors G3AAF, while thymine favors G1AAF in complex 1 and vice versa for complex 2. The quenching studies confirm that Ir(III) complexes bind with AAF-dG sequences through the minor groove. The outcome of this work reveals that the switch-on effect by the complexes can be utilized for determining the conformational heterogeneity of the adduct and also for similar covalent-DNA adducts.
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Affiliation(s)
- David Dayanidhi Paul Elisa
- Advanced Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600 020, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Vaidyanathan Vaidyanathan Ganesan
- Advanced Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600 020, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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24
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Zhang SQ, Meng TT, Li J, Hong F, Liu J, Wang Y, Gao LH, Zhao H, Wang KZ. Near-IR/Visible-Emitting Thiophenyl-Based Ru(II) Complexes: Efficient Photodynamic Therapy, Cellular Uptake, and DNA Binding. Inorg Chem 2019; 58:14244-14259. [DOI: 10.1021/acs.inorgchem.9b02420] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Si-Qi Zhang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, People’s Republic of China
| | - Ting-Ting Meng
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, People’s Republic of China
- College of Science, Liaoning Technical University, Fuxin 123000, People’s Republic of China
| | - Jia Li
- Beijing Key Laboratory of Gene Resource and Molecular Development, Beijing Normal University, Beijing 100875, People’s Republic of China
| | - Fan Hong
- Beijing Key Laboratory of Gene Resource and Molecular Development, Beijing Normal University, Beijing 100875, People’s Republic of China
| | - Jin Liu
- Beijing Key Laboratory of Gene Resource and Molecular Development, Beijing Normal University, Beijing 100875, People’s Republic of China
| | - Youjun Wang
- Beijing Key Laboratory of Gene Resource and Molecular Development, Beijing Normal University, Beijing 100875, People’s Republic of China
| | - Li-Hua Gao
- School of Science, Beijing Technology and Business University, Beijing 100048, People’s Republic of China
| | - Hua Zhao
- School of Science, Beijing Technology and Business University, Beijing 100048, People’s Republic of China
| | - Ke-Zhi Wang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, People’s Republic of China
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25
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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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26
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Xu Q, Dong J, Ma X, Zhao Y, Li CC, Zhang CY. Structurally Defined Ru(II) Metallointercalators for Real-Time Monitoring of DNA Amplification Reactions. Anal Chem 2019; 91:8777-8782. [DOI: 10.1021/acs.analchem.9b02244] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Qinfeng Xu
- School of Food and Biological Engineering, National R&D Center for Goat Dairy Products Processing Technology, Shaanxi University of Science and Technology, Xi’an 710021, P. R. China
| | - Jing Dong
- School of Food and Biological Engineering, National R&D Center for Goat Dairy Products Processing Technology, Shaanxi University of Science and Technology, Xi’an 710021, P. R. China
| | - Xiya Ma
- School of Food and Biological Engineering, National R&D Center for Goat Dairy Products Processing Technology, Shaanxi University of Science and Technology, Xi’an 710021, P. R. China
| | - Yanni Zhao
- School of Food and Biological Engineering, National R&D Center for Goat Dairy Products Processing Technology, Shaanxi University of Science and Technology, Xi’an 710021, P. R. China
| | - Chen-chen Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Chun-yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
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27
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Beltrán-Leiva MJ, Fuenzalida-Valdivia I, Cantero-López P, Bulhões-Figueira A, Alzate-Morales J, Páez-Hernández D, Arratia-Pérez R. Classical and Quantum Mechanical Calculations of the Stacking Interaction of NdIII Complexes with Regular and Mismatched DNA Sequences. J Phys Chem B 2019; 123:3219-3231. [DOI: 10.1021/acs.jpcb.9b00703] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- María J. Beltrán-Leiva
- Relativistic Molecular Physics Group, Universidad Andres Bello, República 275, Santiago 8370146, Chile
| | - Isabel Fuenzalida-Valdivia
- Facultad de Ciencias Biológicas, Centro de Biotecnología Vegetal, Universidad Andres Bello, Santiago 8370146, Chile
| | - Plinio Cantero-López
- Relativistic Molecular Physics Group, Universidad Andres Bello, República 275, Santiago 8370146, Chile
- Center for Applied Nanosciences (CANS), Facultad de Ciencias Exactas, Universidad Andres Bello, Av. República 275, Santiago, 8370146, Chile
| | - Ana Bulhões-Figueira
- Centro Universitário Estácio de Ribeirão Preto, Rua Abrahão Issa Halach 980, Ribeirãnia, Ribeirão Preto, Sao Paulo 14096-160, Brazil
| | - Jans Alzate-Morales
- Centro de Bioinformática y Simulación Molecular (CBSM), Facultad de Ingeniería, Universidad de Talca, 1 Poniente 1141, Talca, Chile
| | - Dayán Páez-Hernández
- Relativistic Molecular Physics Group, Universidad Andres Bello, República 275, Santiago 8370146, Chile
- Center for Applied Nanosciences (CANS), Facultad de Ciencias Exactas, Universidad Andres Bello, Av. República 275, Santiago, 8370146, Chile
| | - Ramiro Arratia-Pérez
- Relativistic Molecular Physics Group, Universidad Andres Bello, República 275, Santiago 8370146, Chile
- Center for Applied Nanosciences (CANS), Facultad de Ciencias Exactas, Universidad Andres Bello, Av. República 275, Santiago, 8370146, Chile
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28
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Shum J, Leung PKK, Lo KKW. Luminescent Ruthenium(II) Polypyridine Complexes for a Wide Variety of Biomolecular and Cellular Applications. Inorg Chem 2019; 58:2231-2247. [DOI: 10.1021/acs.inorgchem.8b02979] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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29
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Yu B, Rees TW, Liang J, Jin C, Chen Y, Ji L, Chao H. DNA interaction of ruthenium(ii) complexes with imidazo[4,5-f][1,10]phenanthroline derivatives. Dalton Trans 2019; 48:3914-3921. [DOI: 10.1039/c9dt00454h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The DNA interaction properties of four Ru(ii) complexes with imidazo[4,5-f][1,10]phenanthroline derivatives were investigated by spectral titration, gel electrophoresis (GAR), dynamic light scattering (DLS), zeta potential, atomic force microscopy (AFM), and transmission electron microscopy (TEM).
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Affiliation(s)
- Bole Yu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Thomas W. Rees
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Jiewen Liang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Chengzhi Jin
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Yu Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Liangnian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Hui Chao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
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30
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Dayanidhi DPE, Malapati RP, Vaidyanathan Ganesan V. Selective recognition of DNA defects by cyclometalated Ir(iii) complexes. Dalton Trans 2019; 48:13536-13540. [DOI: 10.1039/c9dt01225g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Three different cyclometalated Ir(iii) complexes selectively bind to DNA defects.
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Affiliation(s)
- David Paul Elisa Dayanidhi
- Academy of Scientific and Innovative Research (AcSIR), Advanced Materials Laboratory
- CSIR-Central Leather Research Institute
- Chennai 600 020
| | - Rozaria Pinky Malapati
- Academy of Scientific and Innovative Research (AcSIR), Advanced Materials Laboratory
- CSIR-Central Leather Research Institute
- Chennai 600 020
| | - Vaidyanathan Vaidyanathan Ganesan
- Academy of Scientific and Innovative Research (AcSIR), Advanced Materials Laboratory
- CSIR-Central Leather Research Institute
- Chennai 600 020
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31
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Sarkar B, Mondal A, Madaan Y, Roy N, Moorthy A, Kuo YC, Paira P. Luminescent anticancer ruthenium(ii)-p-cymene complexes of extended imidazophenanthroline ligands: synthesis, structure, reactivity, biomolecular interactions and live cell imaging. Dalton Trans 2019; 48:12257-12271. [DOI: 10.1039/c9dt00921c] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The violence of cancer triggered us to design lipophilic, target specific, water soluble, cytoselective and fluorescent Ru(ii)-p-cymene imidazophenanthroline scaffolds as effective DNA targeting agents as well as life cell imaging probes.
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Affiliation(s)
- Bidisha Sarkar
- Department of Chemistry
- School of Advanced Sciences
- VIT
- Vellore-632014
- India
| | - Ashaparna Mondal
- Department of Chemistry
- School of Advanced Sciences
- VIT
- Vellore-632014
- India
| | - Yukti Madaan
- Department of Chemistry
- School of Advanced Sciences
- VIT
- Vellore-632014
- India
| | - Nilmadhab Roy
- Department of Chemistry
- School of Advanced Sciences
- VIT
- Vellore-632014
- India
| | - Anbalagan Moorthy
- Department of Biotechnology
- School of Bioscience & Technology
- Vellore Institute of Technology
- Vellore 632014
- India
| | - Yung-Chih Kuo
- Department of Chemical Engineering
- National Chung Cheng University
- Min-Hsiung
- Taiwan 62102
| | - Priyankar Paira
- Department of Chemistry
- School of Advanced Sciences
- VIT
- Vellore-632014
- India
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32
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Gillard M, Laramée-Milette B, Deraedt Q, Hanan GS, Loiseau F, Dejeu J, Defrancq E, Elias B, Marcélis L. Photodetection of DNA mismatches by dissymmetric Ru(ii) acridine based complexes. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00133f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Favored radiative deactivation processes in dissymmetric Ru(ii) complexes enable photodetection of DNA mismatches.
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Affiliation(s)
- Martin Gillard
- Institute of Condensed Matter and Nanosciences (IMCN)
- Molecular Chemistry
- Materials and Catalysis (MOST)
- Université catholique de Louvain (UCLouvain)
- B-1348 Louvain-la-Neuve
| | | | - Quentin Deraedt
- Institute of Condensed Matter and Nanosciences (IMCN)
- Molecular Chemistry
- Materials and Catalysis (MOST)
- Université catholique de Louvain (UCLouvain)
- B-1348 Louvain-la-Neuve
| | - Garry S. Hanan
- Departement de Chimie
- Université de Montréal
- Montréal
- Canada
| | - Fredérique Loiseau
- Département de Chimie Moléculaire
- Université Grenoble-Alpes (UGA)
- 38058 Grenoble
- France
| | - Jérôme Dejeu
- Département de Chimie Moléculaire
- Université Grenoble-Alpes (UGA)
- 38058 Grenoble
- France
| | - Eric Defrancq
- Département de Chimie Moléculaire
- Université Grenoble-Alpes (UGA)
- 38058 Grenoble
- France
| | - Benjamin Elias
- Institute of Condensed Matter and Nanosciences (IMCN)
- Molecular Chemistry
- Materials and Catalysis (MOST)
- Université catholique de Louvain (UCLouvain)
- B-1348 Louvain-la-Neuve
| | - Lionel Marcélis
- Institute of Condensed Matter and Nanosciences (IMCN)
- Molecular Chemistry
- Materials and Catalysis (MOST)
- Université catholique de Louvain (UCLouvain)
- B-1348 Louvain-la-Neuve
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33
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Weynand J, Diman A, Abraham M, Marcélis L, Jamet H, Decottignies A, Dejeu J, Defrancq E, Elias B. Towards the Development of Photo‐Reactive Ruthenium(II) Complexes Targeting Telomeric G‐Quadruplex DNA. Chemistry 2018; 24:19216-19227. [DOI: 10.1002/chem.201804771] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/22/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Justin Weynand
- Université catholique de Louvain (UCLouvain)Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
- Université Grenoble-Alpes (UGA)Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700 38058 Grenoble France
| | - Aurélie Diman
- Université catholique de Louvain (UCLouvain) de Duve Institute Avenue Hippocrate 75 1200 Brussels Belgium
| | - Michaël Abraham
- Université catholique de Louvain (UCLouvain)Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
| | - Lionel Marcélis
- Université catholique de Louvain (UCLouvain)Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
| | - Hélène Jamet
- Université Grenoble-Alpes (UGA)Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700 38058 Grenoble France
| | - Anabelle Decottignies
- Université catholique de Louvain (UCLouvain) de Duve Institute Avenue Hippocrate 75 1200 Brussels Belgium
| | - Jérôme Dejeu
- Université Grenoble-Alpes (UGA)Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700 38058 Grenoble France
| | - Eric Defrancq
- Université Grenoble-Alpes (UGA)Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700 38058 Grenoble France
| | - Benjamin Elias
- Université catholique de Louvain (UCLouvain)Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
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34
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Ruthenium coordination compounds of biological and biomedical significance. DNA binding agents. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.07.012] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Thangavel N, Ganesan VV, Nair BU. Conformation Specific Binding of [Ru(phen)2
(dppz)]2+
with Mono- and Cluster Arylamine-DNA Adducts. ChemistrySelect 2018. [DOI: 10.1002/slct.201802172] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Nandhini Thangavel
- Inorganic and Physical Chemistry Laboratory; CSIR-Central Leather Research Institute, Adyar; Chennai 600 020 India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-Central Leather Research Institute, Adyar; Chennai 600 020 India
| | - Vaidyanathan V. Ganesan
- Advanced Materials Laboratory; CSIR-Central Leather Research Institute, Adyar; Chennai 600 020 India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-Central Leather Research Institute, Adyar; Chennai 600 020 India
| | - Balachandran U. Nair
- Inorganic and Physical Chemistry Laboratory; CSIR-Central Leather Research Institute, Adyar; Chennai 600 020 India
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36
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McQuaid K, Hall JP, Brazier JA, Cardin DJ, Cardin CJ. X-ray Crystal Structures Show DNA Stacking Advantage of Terminal Nitrile Substitution in Ru-dppz Complexes. Chemistry 2018; 24:15859-15867. [DOI: 10.1002/chem.201803021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 07/26/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Kane McQuaid
- Department of Chemistry; University of Reading; Whiteknights Reading RG6 6AD UK
- Diamond Light Source; Harwell Science and Innovation Campus; Didcot Oxfordshire OX11 0DE UK
| | - James P. Hall
- Department of Chemistry; University of Reading; Whiteknights Reading RG6 6AD UK
- Department of Pharmacy; University of Reading; Whiteknights Reading RG6 6AD UK
- Diamond Light Source; Harwell Science and Innovation Campus; Didcot Oxfordshire OX11 0DE UK
| | - John A. Brazier
- Department of Pharmacy; University of Reading; Whiteknights Reading RG6 6AD UK
| | - David J. Cardin
- Department of Chemistry; University of Reading; Whiteknights Reading RG6 6AD UK
| | - Christine J. Cardin
- Department of Chemistry; University of Reading; Whiteknights Reading RG6 6AD UK
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37
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Kajouj S, Marcelis L, Mattiuzzi A, Grassin A, Dufour D, Van Antwerpen P, Boturyn D, Defrancq E, Surin M, De Winter J, Gerbaux P, Jabin I, Moucheron C. Synthesis and photophysical studies of a multivalent photoreactive Ru II-calix[4]arene complex bearing RGD-containing cyclopentapeptides. Beilstein J Org Chem 2018; 14:1758-1768. [PMID: 30112081 PMCID: PMC6071717 DOI: 10.3762/bjoc.14.150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 06/21/2018] [Indexed: 01/09/2023] Open
Abstract
Photoactive ruthenium-based complexes are actively studied for their biological applications as potential theragnostic agents against cancer. One major issue of these inorganic complexes is to penetrate inside cells in order to fulfil their function, either sensing the internal cell environment or exert a photocytotoxic activity. The use of lipophilic ligands allows the corresponding ruthenium complexes to passively diffuse inside cells but limits their structural and photophysical properties. Moreover, this strategy does not provide any cell selectivity. This limitation is also faced by complexes anchored on cell-penetrating peptides. In order to provide a selective cell targeting, we developed a multivalent system composed of a photoreactive ruthenium(II) complex tethered to a calix[4]arene platform bearing multiple RGD-containing cyclopentapeptides. Extensive photophysical and photochemical characterizations of this Ru(II)–calixarene conjugate as well as the study of its photoreactivity in the presence of guanosine monophosphate have been achieved. The results show that the ruthenium complex should be able to perform efficiently its photoinduced cytotoxic activity, once incorporated into targeted cancer cells thanks to the multivalent platform.
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Affiliation(s)
- Sofia Kajouj
- Laboratoire de Chimie Organique et Photochimie, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/08, 1050 Bruxelles, Belgium
| | - Lionel Marcelis
- Laboratoire de Chimie Organique et Photochimie, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/08, 1050 Bruxelles, Belgium.,Engineering of Molecular NanoSystems, Ecole Polytechnique de Bruxelles, Université libre de Bruxelles (ULB), Avenue F.D. Roosevelt 50, CP165/64, B-1050 Brussels, Belgium
| | - Alice Mattiuzzi
- Laboratoire de Chimie Organique, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/06, 1050 Bruxelles, Belgium
| | - Adrien Grassin
- Université Grenoble Alpes, Département de Chimie Moléculaire UMR CNRS 5250, CS 40700, 38058 Grenoble Cedex 09, France
| | - Damien Dufour
- Analytical Platform of the Faculty of Pharmacy, Université libre de Bruxelles, Boulevard du Triomphe, Campus de la Plaine, CP205/05, 1050 Bruxelles, Belgium
| | - Pierre Van Antwerpen
- Analytical Platform of the Faculty of Pharmacy, Université libre de Bruxelles, Boulevard du Triomphe, Campus de la Plaine, CP205/05, 1050 Bruxelles, Belgium
| | - Didier Boturyn
- Université Grenoble Alpes, Département de Chimie Moléculaire UMR CNRS 5250, CS 40700, 38058 Grenoble Cedex 09, France
| | - Eric Defrancq
- Université Grenoble Alpes, Département de Chimie Moléculaire UMR CNRS 5250, CS 40700, 38058 Grenoble Cedex 09, France
| | - Mathieu Surin
- Laboratory for Chemistry of Novel Materials, Center for Innovation and Research in Materials and Polymers, University of Mons - UMONS, 20, Place du Parc, B-7000 Mons, Belgium
| | - Julien De Winter
- Organic synthesis and Mass Spectrometry Laboratory, University of Mons - UMONS, Place du Parc 23, B-7000 Mons, Belgium
| | - Pascal Gerbaux
- Organic synthesis and Mass Spectrometry Laboratory, University of Mons - UMONS, Place du Parc 23, B-7000 Mons, Belgium
| | - Ivan Jabin
- Laboratoire de Chimie Organique, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/06, 1050 Bruxelles, Belgium
| | - Cécile Moucheron
- Laboratoire de Chimie Organique et Photochimie, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/08, 1050 Bruxelles, Belgium
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38
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Liu X, Huang J, Tang Y, Shen Y, Lu J. Topoisomerase I inhibitory and photocleavage activity of non-dppz DNA ‘light switches’ based on ruthenium complexes containing nitro group. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4423] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- XueWen Liu
- College of Chemistry and Material Engineering; Hunan University of Arts and Science; ChangDe 415000 China
| | - Jie Huang
- College of Chemistry and Material Engineering; Hunan University of Arts and Science; ChangDe 415000 China
| | - YuXuan Tang
- College of Chemistry and Material Engineering; Hunan University of Arts and Science; ChangDe 415000 China
| | - YouMing Shen
- College of Chemistry and Material Engineering; Hunan University of Arts and Science; ChangDe 415000 China
| | - JiLin Lu
- College of Chemistry and Material Engineering; Hunan University of Arts and Science; ChangDe 415000 China
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39
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Jayaram V, Sridhar T, Sharma GVM, Berrée F, Carboni B. Synthesis of Polysubstituted Isoquinolines and Related Fused Pyridines from Alkenyl Boronic Esters via a Copper-Catalyzed Azidation/Aza-Wittig Condensation Sequence. J Org Chem 2018; 83:843-853. [DOI: 10.1021/acs.joc.7b02831] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Vankudoth Jayaram
- Organic
and Biomolecular Chemistry Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad-500 007, India
| | - Tailor Sridhar
- Organic
and Biomolecular Chemistry Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad-500 007, India
| | - Gangavaram V. M. Sharma
- Organic
and Biomolecular Chemistry Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad-500 007, India
| | - Fabienne Berrée
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Bertrand Carboni
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
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40
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Nano A, Boynton AN, Barton JK. A Rhodium-Cyanine Fluorescent Probe: Detection and Signaling of Mismatches in DNA. J Am Chem Soc 2017; 139:17301-17304. [PMID: 29136382 PMCID: PMC5892186 DOI: 10.1021/jacs.7b10639] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report a bifunctional fluorescent probe that combines a rhodium metalloinsertor with a cyanine dye as the fluorescent reporter. The conjugate shows weak luminescence when free in solution or with well matched DNA but exhibits a significant luminescence increase in the presence of a 27-mer DNA duplex containing a central CC mismatch. DNA photocleavage experiments demonstrate that, upon photoactivation, the conjugate cleaves the DNA backbone specifically near the mismatch site on a 27-mer fragment, consistent with mismatch targeting. Fluorescence titrations with the 27-mer duplex containing the CC mismatch reveal a DNA binding affinity of 3.1 × 106 M-1, similar to that of other rhodium metalloinsertors. Fluorescence titrations using genomic DNA extracted from various cell lines demonstrate a clear discrimination in fluorescence between those cell lines that are proficient or deficient in mismatch repair. This differential luminescence reflects the sensitive detection of the mismatchrepair-deficient phenotype.
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Affiliation(s)
- Adela Nano
- California Institute of Technology, Division of Chemistry and Chemical Engineering, Pasadena, California 91125, United States
| | - Adam N. Boynton
- California Institute of Technology, Division of Chemistry and Chemical Engineering, Pasadena, California 91125, United States
| | - Jacqueline K. Barton
- California Institute of Technology, Division of Chemistry and Chemical Engineering, Pasadena, California 91125, United States
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