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Tran VT, Turek-Herman J, Ferreira M, Martin KN, Beseiso D, Williams BR, Rosu F, Gabelica V, Burgmayer SJN, Yatsunyk LA. Interactions of ruthenium(II) polypyridyl complexes with human telomeric DNA. J Inorg Biochem 2023; 249:112388. [PMID: 37837940 PMCID: PMC10668861 DOI: 10.1016/j.jinorgbio.2023.112388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/12/2023] [Accepted: 09/24/2023] [Indexed: 10/16/2023]
Abstract
Eight [Ru(bpy)2L]2+ and three [Ru(phen)2L]2+complexes (where bpy = 2,2'-bipyridine and phen = 1,10-phenanthroline are ancillary ligands, and L = a polypyridyl experimental ligand) were investigated for their G-quadruplex binding abilities. Fluorescence resonance energy transfer melting assays were used to screen these complexes for their ability to selectively stabilize human telomeric DNA variant, Tel22. The best G-quadruplex stabilizers were further characterized for their binding properties (binding constant and stoichiometry) using UV-vis, fluorescence spectroscopy, and mass spectrometry. The ligands' ability to alter the structure of Tel22 was determined via circular dichroism and PAGE studies. We identified me2allox as the experimental ligand capable of conferring excellent stabilizing ability and good selectivity to polypyridyl Ru(II) complexes. Replacing bpy by phen did not significantly impact interactions with Tel22, suggesting that binding involves mostly the experimental ligand. However, using a particular ancillary ligand can help fine-tune G-quadruplex-binding properties of Ru(II) complexes. Finally, the fluorescence "light switch" behavior of all Ru(II) complexes in the presence of Tel22 G-quadruplex was explored. All Ru(II) complexes displayed "light switch" properties, especially [Ru(bpy)2(diamino)]2+, [Ru(bpy)2(dppz)]2+, and [Ru(bpy)2(aap)]2+. Current work sheds light on how Ru(II) polypyridyl complexes interact with human telomeric DNA with possible application in cancer therapy or G-quadruplex sensing.
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Affiliation(s)
- Vienna T Tran
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Ave., Swarthmore, PA, USA.
| | - Joshua Turek-Herman
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Ave., Swarthmore, PA, USA.
| | - Michelle Ferreira
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Ave., Swarthmore, PA, USA.
| | - Kailey N Martin
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Ave., Swarthmore, PA, USA.
| | - Dana Beseiso
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Ave., Swarthmore, PA, USA.
| | | | - Frederic Rosu
- Univ. Bordeaux, CNRS, INSERM, IECB, UAR3033, US01, F-33600 Pessac, France.
| | - Valérie Gabelica
- Univ. Bordeaux, CNRS, INSERM, IECB, UAR3033, US01, F-33600 Pessac, France; Univ. Bordeaux, CNRS, INSERM, ARNA, UMR5320, U1212, IECB, F-33600 Pessac, France.
| | | | - Liliya A Yatsunyk
- Department of Chemistry and Biochemistry, Swarthmore College, 500 College Ave., Swarthmore, PA, USA.
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Biver T. Discriminating between Parallel, Anti-Parallel and Hybrid G-Quadruplexes: Mechanistic Details on Their Binding to Small Molecules. Molecules 2022; 27:molecules27134165. [PMID: 35807410 PMCID: PMC9268745 DOI: 10.3390/molecules27134165] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/22/2022] [Accepted: 06/27/2022] [Indexed: 12/04/2022] Open
Abstract
G-quadruplexes (G4) are now extensively recognised as a peculiar non-canonical DNA geometry that plays a prime importance role in processes of biological relevance whose number is increasing continuously. The same is true for the less-studied RNA G4 counterpart. G4s are stable structures; however, their geometrical parameters may be finely tuned not only by the presence of particular sequences of nucleotides but also by the salt content of the medium or by a small molecule that may act as a peculiar topology inducer. As far as the interest in G4s increases and our knowledge of these species deepens, researchers do not only verify the G4s binding by small molecules and the subsequent G4 stabilisation. The most innovative studies now aim to elucidate the mechanistic details of the interaction and the ability of a target species (drug) to bind only to a peculiar G4 geometry. In this focused review, we survey the advances in the studies of the binding of small molecules of medical interest to G4s, with particular attention to the ability of these species to bind differently (intercalation, lateral binding or sitting atop) to different G4 topologies (parallel, anti-parallel or hybrid structures). Some species, given the very high affinity with some peculiar G4 topology, can first bind to a less favourable geometry and then induce its conversion. This aspect is also considered.
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Affiliation(s)
- Tarita Biver
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy
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3
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Mendes E, Bahls B, Aljnadi IM, Paulo A. Indoloquinolines as scaffolds for the design of potent G-quadruplex ligands. Bioorg Med Chem Lett 2022; 72:128862. [PMID: 35716866 DOI: 10.1016/j.bmcl.2022.128862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/09/2022] [Accepted: 06/13/2022] [Indexed: 11/19/2022]
Abstract
Indoloquinolines are natural alkaloids with known affinity to DNA and antiproliferative activity against bacteria, parasites, and cancer cells. Due to their non-chiral skeleton, their total synthesis is easy to achieve and throughout the years, many derivatives have been studied for their potential as drugs. Herein we review the indoloquinolines and bioisosters that have been designed, synthesised, and evaluated for their selective binding to G-quadruplex nucleic acid structures, as well as the reported effects in cancer cells. The data collected so far strongly suggest that indoloquinolines are good scaffolds for the development of drugs and probes targeting the G-quadruplex structures, but they also show that this scaffold is still underexplored.
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Affiliation(s)
- Eduarda Mendes
- Faculty of Pharmacy, Research Institute for Medicines (iMed.ULisboa), Universidade de Lisboa, Av. Prof. Gama Pinto, Lisbon 1649-003, Portugal
| | - Bárbara Bahls
- Faculty of Pharmacy, Research Institute for Medicines (iMed.ULisboa), Universidade de Lisboa, Av. Prof. Gama Pinto, Lisbon 1649-003, Portugal
| | - Israa M Aljnadi
- Faculty of Pharmacy, Research Institute for Medicines (iMed.ULisboa), Universidade de Lisboa, Av. Prof. Gama Pinto, Lisbon 1649-003, Portugal
| | - Alexandra Paulo
- Faculty of Pharmacy, Research Institute for Medicines (iMed.ULisboa), Universidade de Lisboa, Av. Prof. Gama Pinto, Lisbon 1649-003, Portugal.
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Ruthenium(II) Polypyridyl Complexes and Their Use as Probes and Photoreactive Agents for G-quadruplexes Labelling. Molecules 2022; 27:molecules27051541. [PMID: 35268640 PMCID: PMC8912042 DOI: 10.3390/molecules27051541] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 02/01/2023] Open
Abstract
Due to their optical and electrochemical properties, ruthenium(II) polypyridyl complexes have been used in a wide array of applications. Since the discovery of the light-switch ON effect of [Ru(bpy)2dppz]2+ when interacting with DNA, the design of new Ru(II) complexes as light-up probes for specific regions of DNA has been intensively explored. Amongst them, G-quadruplexes (G4s) are of particular interest. These structures formed by guanine-rich parts of DNA and RNA may be associated with a wide range of biological events. However, locating them and understanding their implications in biological pathways has proven challenging. Elegant approaches to tackle this challenge relies on the use of photoprobes capable of marking, reversibly or irreversibly, these G4s. Indeed, Ru(II) complexes containing ancillary π-deficient TAP ligands can create a covalently linked adduct with G4s after a photoinduced electron transfer from a guanine residue to the excited complex. Through careful design of the ligands, high selectivity of interaction with G4 structures can be achieved. This allows the creation of specific Ru(II) light-up probes and photoreactive agents for G4 labelling, which is at the core of this review composed of an introduction dedicated to a brief description of G-quadruplex structures and two main sections. The first one will provide a general picture of ligands and metal complexes interacting with G4s. The second one will focus on an exhaustive and comprehensive overview of the interactions and (photo)reactions of Ru(II) complexes with G4s.
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5
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Enantiomeric selectivity of ruthenium (II) chiral complexes with antitumor activity, in vitro and in vivo. J Inorg Biochem 2020; 216:111339. [PMID: 33388703 DOI: 10.1016/j.jinorgbio.2020.111339] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 12/12/2020] [Accepted: 12/13/2020] [Indexed: 01/17/2023]
Abstract
Different enantiomers of chiral drugs show distinctive activities. Here, a pair of chiral ruthenium Λ-[Ru(phen)2(TPEPIP)]2+ (Λ-Ru), and Δ-[Ru(phen)2(TPEPIP)]2+ (Δ-Ru) (phen = 1,10-phenanthroline; TPEPIP = 2-(4'-(1,2,2-triphenylvinyl)-[1,1'-biphenyl]-4-yl)-1H-imidazo[4,5-f][1,10]phenanthroline) compounds have been prepared and characterized. Both have aggregation-induced emission characteristics, although Λ-Ru exhibits much higher activity, towards duplex DNA extracted from SGC-7901 cancer cells. In vitro experiments demonstrate that both Λ-Ru and Δ-Ru can induce the apoptosis of tumor cells with Λ-Ru showing greater activity than Δ-Ru. Λ-Ru aggregates in the cell nucleus of SGC-7901 within 5 h which shows that nucleic acids may be the effective target of Λ-Ru. In vivo experiments with nude mice showed that Λ-Ru can inhibit the growth and proliferation of a tumor, in tumor-bearing mice as well as targeting the tumor site, as demonstrated by fluorescence. These results demonstrate the dual-function of Λ-Ru, which could be used for real-time visualization of a chemotherapeutic agent.
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6
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Zang M, Su H, Lu L, Li F. A split G-quadruplex-specific dinuclear Ir(III) complex for label-free luminescent detection of transcription factor. Talanta 2019; 202:259-266. [DOI: 10.1016/j.talanta.2019.05.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/29/2019] [Accepted: 05/02/2019] [Indexed: 12/29/2022]
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7
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McQuaid K, Abell H, Gurung SP, Allan DR, Winter G, Sorensen T, Cardin DJ, Brazier JA, Cardin CJ, Hall JP. Structural Studies Reveal Enantiospecific Recognition of a DNA G‐Quadruplex by a Ruthenium Polypyridyl Complex. Angew Chem Int Ed Engl 2019; 58:9881-9885. [DOI: 10.1002/anie.201814502] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 03/19/2019] [Indexed: 01/10/2023]
Affiliation(s)
- Kane McQuaid
- Department of ChemistryUniversity of Reading Whiteknights Reading RG6 6AD UK
- Diamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
| | - Holly Abell
- Department of ChemistryUniversity of Reading Whiteknights Reading RG6 6AD UK
| | - Sarah P. Gurung
- Department of ChemistryUniversity of Reading Whiteknights Reading RG6 6AD UK
- Diamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
| | - David R. Allan
- Diamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
| | - Graeme Winter
- Diamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
| | - Thomas Sorensen
- Diamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
| | - David J. Cardin
- Department of ChemistryUniversity of Reading Whiteknights Reading RG6 6AD UK
| | - John A. Brazier
- Department of PharmacyUniversity of Reading Whiteknights Reading RG6 6AH UK
| | - Christine J. Cardin
- Department of ChemistryUniversity of Reading Whiteknights Reading RG6 6AD UK
| | - James P. Hall
- Department of ChemistryUniversity of Reading Whiteknights Reading RG6 6AD UK
- Department of PharmacyUniversity of Reading Whiteknights Reading RG6 6AH UK
- Diamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
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8
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McQuaid K, Abell H, Gurung SP, Allan DR, Winter G, Sorensen T, Cardin DJ, Brazier JA, Cardin CJ, Hall JP. Structural Studies Reveal Enantiospecific Recognition of a DNA G‐Quadruplex by a Ruthenium Polypyridyl Complex. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814502] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Kane McQuaid
- Department of ChemistryUniversity of Reading Whiteknights Reading RG6 6AD UK
- Diamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
| | - Holly Abell
- Department of ChemistryUniversity of Reading Whiteknights Reading RG6 6AD UK
| | - Sarah P. Gurung
- Department of ChemistryUniversity of Reading Whiteknights Reading RG6 6AD UK
- Diamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
| | - David R. Allan
- Diamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
| | - Graeme Winter
- Diamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
| | - Thomas Sorensen
- Diamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
| | - David J. Cardin
- Department of ChemistryUniversity of Reading Whiteknights Reading RG6 6AD UK
| | - John A. Brazier
- Department of PharmacyUniversity of Reading Whiteknights Reading RG6 6AH UK
| | - Christine J. Cardin
- Department of ChemistryUniversity of Reading Whiteknights Reading RG6 6AD UK
| | - James P. Hall
- Department of ChemistryUniversity of Reading Whiteknights Reading RG6 6AD UK
- Department of PharmacyUniversity of Reading Whiteknights Reading RG6 6AH UK
- Diamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
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9
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Novel triazole and morpholine substituted bisnaphthalimide: Synthesis, photophysical and G-quadruplex binding properties. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.073] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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10
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Xu X, Wang S, Mi Y, Zhao H, Zheng Z, Zhao X. A hydroxyquinoline-appended ruthenium(II)-polypyridyl complex that induces and stabilizes G-quadruplex DNA. J COORD CHEM 2019. [DOI: 10.1080/00958972.2018.1548703] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Xuexue Xu
- College of Chemistry and Environmental Science, Hebei University, Baoding, P.R. China
| | - Shuang Wang
- College of Chemistry and Environmental Science, Hebei University, Baoding, P.R. China
| | - Yaxuan Mi
- College of Chemistry and Environmental Science, Hebei University, Baoding, P.R. China
| | - Huaqian Zhao
- College of Chemistry and Environmental Science, Hebei University, Baoding, P.R. China
| | - Zebao Zheng
- College of Chemistry and Chemical Engineering, Taishan University, Taian, P.R. China
| | - Xiaolong Zhao
- College of Chemistry and Environmental Science, Hebei University, Baoding, P.R. China
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11
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Sedghi Masoud S, Nagasawa K. i-Motif-Binding Ligands and Their Effects on the Structure and Biological Functions of i-Motif. Chem Pharm Bull (Tokyo) 2018; 66:1091-1103. [DOI: 10.1248/cpb.c18-00720] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Shadi Sedghi Masoud
- Department of Life Science and Biotechnology, Faculty of Technology, Tokyo University of Agriculture and Technology
| | - Kazuo Nagasawa
- Department of Life Science and Biotechnology, Faculty of Technology, Tokyo University of Agriculture and Technology
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12
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Chilakamarthi U, Koteshwar D, Jinka S, Vamsi Krishna N, Sridharan K, Nagesh N, Giribabu L. Novel Amphiphilic G-Quadruplex Binding Synthetic Derivative of TMPyP4 and Its Effect on Cancer Cell Proliferation and Apoptosis Induction. Biochemistry 2018; 57:6514-6527. [PMID: 30369235 DOI: 10.1021/acs.biochem.8b00843] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Porphyrins are well-known anticancer agents because of their high binding affinity for G-quadruplex DNA and excellent photophysical properties. Several studies carried out using TMPyP4 established it as an efficient chemotherapeutic and a photodynamic therapeutic (PDT) agent, but its use as a lead molecule has been restricted because of its high level of binding to double-stranded DNA (dsDNA), which may have side effects on normal cells and tissues. To minimize its interaction with dsDNA and to enhance internalization into cells, an analogue of TMPyP4 (5Me) was synthesized. Its selectivity for G-quadruplex DNA over dsDNA was evaluated by spectroscopic methods, and its role in stabilizing G-quadruplex DNA was assessed by fluorescence lifetime and thermal melting experiments. Biophysical studies indicated that 5Me interacts well with G-quadruplex DNA. In vitro cytotoxicity experiments with tumor cell lines (PANC-1, B16F10, and MDA MB 231) have revealed that 5Me can inhibit the growth of cancer cells comparable to TMPyP4. MTT and apoptotic assays demonstrated the ability of 5Me to specifically affect cancer cells over normal cells. Cell cycle analysis showed that 5Me, like TMPyP4, induces G2/M phase cell cycle arrest. In addition, 5Me is more effectively taken up by both cancer and normal cells than TMPyP4. In addition, we have noticed that 5Me is more efficient than TMPyP4 in inhibiting the growth of the cancer cells after irradiation with light (600-720 nm, 20 J/cm2, 50 mW/cm2). By and large, these experimental results indicate that 5Me can be an efficient chemotherapeutic as well as a PDT agent.
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Affiliation(s)
- Ushasri Chilakamarthi
- Polymers and Functional Materials Division , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - Devulapally Koteshwar
- Polymers and Functional Materials Division , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - Sudhakar Jinka
- Applied Biology Division , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - Narra Vamsi Krishna
- Polymers and Functional Materials Division , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - Kathyayani Sridharan
- Applied Biology Division , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - Narayana Nagesh
- CSIR-Centre for Cellular and Molecular Biology , Hyderabad 500007 , India
| | - Lingamallu Giribabu
- Polymers and Functional Materials Division , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
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13
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A dinuclear ruthenium(II) complex as an inducer and potential luminescent switch-on probe for G-quadruplex DNA. TRANSIT METAL CHEM 2018. [DOI: 10.1007/s11243-018-0240-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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14
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Huang S, Liang Y, Cui J, Xie J, Liu Y, Hu B, Xiao Q. Comparative investigation of binding interactions with three steroidal derivatives of d(GGGT) 4 G-quadruplex aptamer. Steroids 2018; 132:46-55. [PMID: 29458054 DOI: 10.1016/j.steroids.2018.02.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 02/04/2018] [Accepted: 02/13/2018] [Indexed: 11/19/2022]
Abstract
Steroidal derivatives have attracted tremendous attentions in biological and biomedical areas, due to their variety biological activities. The investigation of structural influences helps in understanding their biological activities. The interactions of steroidal derivatives with DNA may play important roles in biological activities, however only a few investigations were reported on this issue. Herein, the structural influences of three steroidal derivatives were investigated based on their binding interactions with d(GGGT)4 G-quadruplex aptamer by spectroscopic approaches, nuclear magnetic resonance (NMR), electrochemical methods, and molecular modeling techniques. Three compounds were found to selectively bind with parallel G-quadruplex aptamer to form three complexes through end-stacking binding modes. Three compounds stabilized the G-quadruplex structure of the aptamer at different levels, which enhanced the biological activity of this aptamer to some extent. The space steric hindrance was responsible for differences in the binding interactions between d(GGGT)4 G-quadruplex aptamer and three compounds. These results provide new information for the molecular understanding of binding interactions of steroidal derivatives with DNA and the strategy for research of structural influences.
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Affiliation(s)
- Shan Huang
- College of Chemistry and Materials Science, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Guangxi Teachers Education University, Nanning 530001, PR China; Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University), Ministry of Education, Nanning 530001, PR China
| | - Yu Liang
- College of Chemistry and Materials Science, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Guangxi Teachers Education University, Nanning 530001, PR China
| | - Jianguo Cui
- College of Chemistry and Materials Science, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Guangxi Teachers Education University, Nanning 530001, PR China.
| | - Jiangning Xie
- College of Chemistry and Materials Science, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Guangxi Teachers Education University, Nanning 530001, PR China
| | - Yi Liu
- College of Chemistry and Materials Science, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Guangxi Teachers Education University, Nanning 530001, PR China; College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Baoqing Hu
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University), Ministry of Education, Nanning 530001, PR China
| | - Qi Xiao
- College of Chemistry and Materials Science, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Guangxi Teachers Education University, Nanning 530001, PR China; College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China; Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University), Ministry of Education, Nanning 530001, PR China.
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15
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Yu GN, Huang JC, Li L, Liu RT, Cao JQ, Wu Q, Zhang SY, Wang CX, Mei WJ, Zheng WJ. Preparation of Ru(ii)@oligonucleotide nanosized polymers as potential tumor-imaging luminescent probes. RSC Adv 2018; 8:30573-30581. [PMID: 35546841 PMCID: PMC9085494 DOI: 10.1039/c8ra05454a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 08/15/2018] [Indexed: 01/05/2023] Open
Abstract
The development of Ru(ii) complexes as luminescent probes has attracted increasing attention in recent decades. In this study, the nanosized polymers of two Ru(ii) complexes [Ru(phen)2(dppz)](ClO4)2 (1, phen = 1,10-phenanthrolin; dppz = dipyrido[3,2-a:2′,3′-c]phenazine) and [Ru(phen)2(Br-dppz)](ClO4)2 (2, Br-dppz = 11-bromodipyrido[3,2-a:2′,3′-c]phenazine) with oligonucleotides were prepared and investigated as potential tumor-imaging probes. The formation of the nanosized polymers, which had an average width of 125–438 nm and an average height of 3–6 nm, for 1 and 2@oligonucleotides were observed through atomic force microscopy. The emission spectra indicated that the luminescence of 1 and 2 markedly increased after binding to oligonucleotides and double-strand DNA (calf thymus DNA), respectively. Moreover, further studies indicated that 1@oligonucleotides and 2@oligonucleotides can easily enter into tumor cells and selectively highlight the tumor area in the zebrafish bear xenograft tumor (MDA-MB-231). In summary, this study demonstrated that 1@oligonucleotides and 2@oligonucleotides could be developed as potential tumor-imaging luminescent probes for clinical diagnosis and therapy. Ru(ii)@oligonucleotide nanoparticles can be developed as potential tumor selective tracker and have potential applications of tumor targeting imaging.![]()
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Affiliation(s)
- Geng-Nan Yu
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Jun-Chao Huang
- Traditional Chinese Medicine College
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Li Li
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Ruo-Tong Liu
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | | | - Qiong Wu
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- China
- School of Chemistry
| | - Shuang-Yan Zhang
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Cheng-Xi Wang
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Wen-Jie Mei
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- China
- Guangdong Province Engineering Technology Centre for Molecular Probe and Biomedicine Imaging
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16
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Zhao XL, Zhao HQ, Xu XX, Li ZS, Wang KZ. Inducement and stabilization of G-quadruplex DNA by a thiophene-containing dinuclear ruthenium(II) complex. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1322694] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xiao-Long Zhao
- College of Chemistry & Environmental Science, Hebei University, Baoding, PR China
| | - Hua-Qian Zhao
- College of Chemistry & Environmental Science, Hebei University, Baoding, PR China
| | - Xue-Xue Xu
- College of Chemistry & Environmental Science, Hebei University, Baoding, PR China
| | - Zhen-Sheng Li
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, PR China
| | - Ke-Zhi Wang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, PR China
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17
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Interaction of metallacrown complexes with G-quadruplex DNA. J Inorg Biochem 2016; 155:105-14. [DOI: 10.1016/j.jinorgbio.2015.11.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 11/06/2015] [Accepted: 11/30/2015] [Indexed: 11/19/2022]
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18
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Recent Developments in G-Quadruplex Probes. ACTA ACUST UNITED AC 2015; 22:812-28. [DOI: 10.1016/j.chembiol.2015.06.016] [Citation(s) in RCA: 136] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 06/09/2015] [Accepted: 06/10/2015] [Indexed: 11/24/2022]
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