1
|
Ragone F, Yañuk JG, Cabrerizo FM, Prieto E, Wolcan E, Ruiz GT. DNA structural changes (photo)induced by tricarbonyl (pterin)rhenium(I) complex. J Inorg Biochem 2024; 252:112471. [PMID: 38181612 DOI: 10.1016/j.jinorgbio.2023.112471] [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: 10/10/2023] [Revised: 12/08/2023] [Accepted: 12/20/2023] [Indexed: 01/07/2024]
Abstract
We report on interactions of different types of DNA molecules including double-stranded and plasmid DNA as well as polynucleotides (poly[dGdC]2 and poly[dAdT]2) with fac-[ReI(CO)3(pterin)(H2O)] (or Reptr) complex. The interaction was characterized spectroscopically and changes in the plasmid structure were verified by both electrophoresis and AFM microscopy. For comparative reasons, two others related tricarbonyl rhenium(I) complexes, fac-[(4,4'-bpy)ReI(CO)3(dppz)]+ (or Redppz) and fac-[(CF3SO3)ReI(CO)3(2,2'-bpy)] (or Rebpy) were also studied to further explore the influence of the different co-ligands on the interaction and DNA (photo)damage. Data reported herein suggests that DNA molecules can be structurally modified either by direct interaction with Re(I) complexes in their ground states inducing DNA relaxation, and/or through photoinduced cross-linking processes. The chemical nature of the co-ligands modulates the extent of the damage observed.
Collapse
Affiliation(s)
- F Ragone
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina
| | - J G Yañuk
- Instituto Tecnológico de Chascomús (CONICET-UNSAM), Av. Intendente Marino Km 8.2, CC 164 (B7130IWA), Chascomús, Argentina; Escuela de Bio y Nanotecnologías (UNSAM), Argentina
| | - F M Cabrerizo
- Instituto Tecnológico de Chascomús (CONICET-UNSAM), Av. Intendente Marino Km 8.2, CC 164 (B7130IWA), Chascomús, Argentina; Escuela de Bio y Nanotecnologías (UNSAM), Argentina.
| | - E Prieto
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina; ICS-UNAJ, Avenida Calchaqui 6200 Florencio Varela, Argentina
| | - E Wolcan
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina
| | - G T Ruiz
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina.
| |
Collapse
|
2
|
Centro-symmetric paddlewheel copper(II) carboxylates: Synthesis, structural description, DNA-binding and molecular docking studies. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
3
|
Exploration of organotin(IV) derivatives for medicinal applications: Synthesis, spectroscopic characterization, structural elucidation and molecular docking study. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.12.041] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
4
|
Liang SY, Chen YX, Zeng YC, Wu Q, Qiu F, Wei XY, Li L, Mei WJ, Zheng WJ. The DNA-binding behavior and DFT calculation of ruthenium(II) complexes [Ru(phen)2L](ClO4)2 (L = HMOPIP and MOHPIP). J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1411593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Shao-Yu Liang
- First Affiliated Hospital of Shenzhen University, Shenzhen, China
- School of Medicine, Jinan University, Guangzhou, China
| | - Yu-Xin Chen
- Department of Clinical Laboratory, School of Medicine, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Yong-Chang Zeng
- First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Qiong Wu
- School of Medicine, Jinan University, Guangzhou, China
| | - Fanghua Qiu
- Department of hospital infection control, Guangzhou Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Xin-Yu Wei
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Li Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Wen-Jie Mei
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Province Engineering Technology Center for Molecular Probes & Biomedical Imaging, Guangzhou, China
| | - Wen-Jie Zheng
- School of Medicine, Jinan University, Guangzhou, China
| |
Collapse
|
5
|
Zhang H, Li L, Wu Q, Yang F, Chen L, Hou T, Chen J, Mei W, Wang X. Inhibiting the growth of tumor cells by ruthenium(II) complexes [Ru(phen)2L] (L = o-TFMPIP and p-CPIP) through DNA-binding. J COORD CHEM 2016; 69:3507-3517. [DOI: 10.1080/00958972.2016.1237633] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 08/23/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Hao Zhang
- The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Li Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Qiong Wu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Fan Yang
- The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Lanmei Chen
- College of Pharmacy, Guangdong Medical College, Zhanjiang, PR China
| | - Tieying Hou
- Guangdong Academy of Medical Science, Guangzhou, PR China
- Guangdong General Hospital, Guangzhou, PR China
| | - Jincan Chen
- College of Pharmacy, Guangdong Medical College, Zhanjiang, PR China
| | - Wenjie Mei
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Xicheng Wang
- The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, PR China
| |
Collapse
|
6
|
Interaction and Binding Modes of bis-Ruthenium(II) Complex to Synthetic DNAs. METALS 2016. [DOI: 10.3390/met6060141] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
7
|
Byrne A, Dolan C, Moriarty RD, Martin A, Neugebauer U, Forster RJ, Davies A, Volkov Y, Keyes TE. Osmium(II) polypyridyl polyarginine conjugate as a probe for live cell imaging; a comparison of uptake, localization and cytotoxicity with its ruthenium(II) analogue. Dalton Trans 2016. [PMID: 26197944 DOI: 10.1039/c5dt01833a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A first investigation into the application of a luminescent osmium(ii) bipyridine complex to live cell imaging is presented. Osmium(ii) (bis-2,2-bipyridyl)-2(4-carboxylphenyl) imidazo[4,5f][1,10]phenanthroline was prepared and conjugated to octaarginine, a cell penetrating peptide. The photophysics, cell uptake and cytotoxicity of this osmium complex conjugate were performed and compared with its ruthenium analogue. Cell uptake and distribution of both ruthenium and osmium conjugates were very similar with rapid transmembrane transport of the osmium probe (complete within approx. 20 min) and dispersion throughout the cytoplasm and organelles. The near-infrared (NIR) emission of the osmium complex (λmax 726 nm) coincides well with the biological optical window and this facilitated luminescent and luminescence lifetime imaging of the cell which was well resolved from cell autofluorescence. The large Stokes shift of the emission also permitted resonance Raman mapping of the dye within CHO cells. Rather surprisingly, the osmium conjugate exhibited very low cytotoxicity when incubated both in the dark and under visible irradiation. This was attributed to the remarkable stability of this complex which was reflected by the complete absence of photo-bleaching of the complex even under extended continuous irradiation. In addition, when compared to its ruthenium analogue its luminescence was short-lived in water therefore rendering it insensitive to O2.
Collapse
Affiliation(s)
- Aisling Byrne
- School of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Glasnevin, Dublin 9, Ireland.
| | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Amraoui NE, Hammoutène D. DFT study and topological analysis of the bonding in DNA Hoogsteen-type base pairs. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2015. [DOI: 10.1142/s0219633615500479] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The purpose of our work is to characterize and present a theoretical comparative study of a variety of compounds based on DNA base pairs linked with some transition metal ions in gas phase: C–M–G (Cytosine–metal–Guanine) where [Formula: see text](I), Zn(II), Cd(II) and A–M–T (Adenine–metal–Thyminate) where [Formula: see text](II), Ru(I), Ni(I), Y(II), Zn(I), Cd(I), Cu(II). Geometry optimization and frequency calculations were carried out at DFT/ZORA/BLYP-D/TZ2P level. M–N and M–O bonds were investigated with the quantum chemical topology (QCT): Quantum theory of atoms in molecules (QTAIM) and electron localization functions (ELF). The hydrogen bonds: N10–H[Formula: see text]O7 for A–M–T complexes and N7–H[Formula: see text]O10 for C–M–T ones were visualized and discussed, QTAIM and ELF prove the existence of O7–H[Formula: see text]N10 hydrogen bond for some A–M–T systems, since the bond critical point (BCP) of N7–H having [Formula: see text], so it has a covalent character confirming the existence of a tautomer process of these complexes. Bonding energy [Formula: see text], Pauli repulsion [Formula: see text], electrostatic [Formula: see text], and orbital [Formula: see text] interactions were represented and compared together. Hirschfeld’s charges showed the existence of charge transfer process in the bridge moieties. It seems that, in contrast to natural base pairs that are stabilized by hydrogen bonding, Hoogsteen-type base pairs are held together by coordinative bond with metal ions.
Collapse
Affiliation(s)
- Nour Elyakine Amraoui
- Laboratoire de Thermodynamique et de Modélisation Moléculaire (LTMM), Faculté de Chimie, USTHB BP 32, Elalia 16111 Bab Ezzouar, Alger, Algeria
| | - Dalila Hammoutène
- Laboratoire de Thermodynamique et de Modélisation Moléculaire (LTMM), Faculté de Chimie, USTHB BP 32, Elalia 16111 Bab Ezzouar, Alger, Algeria
| |
Collapse
|
9
|
Synthesis, characterization and biological evaluation of Rutin-zinc(II) flavonoid -metal complex. Chem Biol Interact 2015; 239:184-91. [PMID: 26091902 DOI: 10.1016/j.cbi.2015.06.011] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 05/19/2015] [Accepted: 06/05/2015] [Indexed: 10/23/2022]
Abstract
Synthesis of compounds analogous to natural products from secondary metabolites, such as flavonoids, is a promising source of novel drugs. Rutin (quercetin-3-O-rutinoside) is a natural flavone, which has, in its chemical structure, different sites for coordination with transition metals and the complexation with these metals enhances its biological properties. Rutin-zinc(II), a flavonoid-metal complex, was synthesized and characterized by UV-VIS, FT-IR, elemental analysis and (1)H NMR. The antioxidant and antitumor activities, as well as the cytotoxicity and in vivo toxicity of this complex were evaluated and compared with the free rutin. Rutin-zinc(II) has not shown any cytotoxicity against normal cells (fibroblasts and HUVECs) or toxicity in BALB/c mice, but has shown antioxidant activity in vitro and cytotoxicity against leukemia (KG1, K562 and Jurkat), multiple myeloma (RPMI8226) and melanoma (B16F10 and SK-Mel-28) cell lines in vitro. In Ehrlich ascites carcinoma model, Rutin-zinc(II) modulated the mitochondrial membrane potential and the expression of genes related to cell cycle progression, angiogenesis and apoptosis.
Collapse
|
10
|
Lo KKW, Li SPY. Utilization of the photophysical and photochemical properties of phosphorescent transition metal complexes in the development of photofunctional cellular sensors, imaging reagents, and cytotoxic agents. RSC Adv 2014. [DOI: 10.1039/c3ra47611a] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
11
|
Hu W, Deng S, Huang J, Lu Y, Le X, Zheng W. Intercalative interaction of asymmetric copper(II) complex with DNA: Experimental, molecular docking, molecular dynamics and TDDFT studies. J Inorg Biochem 2013; 127:90-8. [DOI: 10.1016/j.jinorgbio.2013.07.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Revised: 07/23/2013] [Accepted: 07/23/2013] [Indexed: 10/26/2022]
|
12
|
Mattiuzzi A, Marcélis L, Jabin I, Moucheron C, Mesmaeker AKD. Synthesis and Electrochemical and Photophysical Properties of Calixarene-Based Ruthenium(II) Complexes as Potential Multivalent Photoreagents. Inorg Chem 2013; 52:11228-36. [DOI: 10.1021/ic401468t] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alice Mattiuzzi
- Laboratoire de Chimie Organique, Université libre de Bruxelles, Avenue F. D. Roosevelt 50, CP160/06, B-1050 Brussels, Belgium
| | - Lionel Marcélis
- Laboratoire de Chimie
Organique
et Photochimie, Université libre de Bruxelles, Avenue F. D. Roosevelt 50, CP160/08, B-1050 Brussels, Belgium
| | - Ivan Jabin
- Laboratoire de Chimie Organique, Université libre de Bruxelles, Avenue F. D. Roosevelt 50, CP160/06, B-1050 Brussels, Belgium
| | - Cécile Moucheron
- Laboratoire de Chimie
Organique
et Photochimie, Université libre de Bruxelles, Avenue F. D. Roosevelt 50, CP160/08, B-1050 Brussels, Belgium
| | - Andrée Kirsch-De Mesmaeker
- Laboratoire de Chimie
Organique
et Photochimie, Université libre de Bruxelles, Avenue F. D. Roosevelt 50, CP160/08, B-1050 Brussels, Belgium
| |
Collapse
|
13
|
Gamba I, Salvadó I, Rama G, Bertazzon M, Sánchez MI, Sánchez-Pedregal VM, Martínez-Costas J, Brissos RF, Gamez P, Mascareñas JL, Vázquez López M, Vázquez ME. Custom-fit ruthenium(II) metallopeptides: a new twist to DNA binding with coordination compounds. Chemistry 2013; 19:13369-75. [PMID: 23943195 DOI: 10.1002/chem.201301629] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2013] [Indexed: 12/20/2022]
Abstract
A new bipyridine building block has been used for the solid-phase synthesis of dinuclear DNA-binding ruthenium(II) metallopeptides. Detailed spectroscopic studies suggest that these compounds bind to the DNA by insertion into the DNA minor groove. Moreover, the potential of the solid-phase peptide synthesis approach is demonstrated by the straightforward synthesis of an octaarginine derivative that shows effective cellular internalization and cytotoxicity linked with strong DNA interaction, as evidenced by steady-state fluorescence spectroscopy and AFM studies.
Collapse
Affiliation(s)
- Ilaria Gamba
- Departamento de Química Inorgánica y Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares, Universidade de Santiago de Compostela, 15782 Santiago de Compostela (Spain)
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Chitrapriya N, Kim R, Jang YJ, Cho DW, Han SW, Kim SK. Sequence Dependent Binding Modes of the ΔΔ- and ΛΛ-binuclear Ru(II) Complexes to poly[d(G-C) 2] and poly[d(A-T) 2]. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.7.2117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
15
|
A Luminescent Cyclometalated Iridium(III) Complex Accumulates in Mitochondria and Induces Mitochondrial Shortening by Conjugation to Specific Protein Targets. Chembiochem 2012; 13:2729-37. [DOI: 10.1002/cbic.201200517] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Indexed: 01/05/2023]
|
16
|
Marcélis L, Ghesquière J, Garnir K, Kirsch-De Mesmaeker A, Moucheron C. Photo-oxidizing RuII complexes and light: Targeting biomolecules via photoadditions. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.02.012] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
17
|
Hong XL, Liang ZH, Zeng MH. Ruthenium(II) complexes: structure, DNA-binding, photocleavage, antioxidant activity, and theoretical studies. J COORD CHEM 2011. [DOI: 10.1080/00958972.2011.628989] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Xian-Lan Hong
- a Department of Chemistry , Shaoguan University , Shaoguan, Guangdong 512005, P.R. China
| | - Zhen-Hua Liang
- b School of Pharmacy , Guangdong Pharmaceutical University , Guangzhou 510006, P.R. China
| | - Mao-Hua Zeng
- a Department of Chemistry , Shaoguan University , Shaoguan, Guangdong 512005, P.R. China
| |
Collapse
|
18
|
Li M, Lincoln P, Andersson J. Slow Threading Intercalation of Monomeric Ru(II) Complexes with 10,13-Diarylsubstituted dppz Ligands. J Phys Chem B 2011; 115:7923-31. [DOI: 10.1021/jp1117618] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Minna Li
- School of Chemical Biology and Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Per Lincoln
- Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
| | - Johanna Andersson
- Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
| |
Collapse
|
19
|
Tan LF, Song FC, Zou XQ, Ling XL. Nucleic acid binding behaviors and cytotoxic properties of a Ru(II) complex. DNA Cell Biol 2011; 30:277-85. [PMID: 21323576 DOI: 10.1089/dna.2010.1137] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The interactions of complex [Ru(bpy)(2)(hnip)](2+) (1) {bpy = 2,2'-bipyridine, hnip = 2-(2-hydroxy-1-naphthyl)imidazo[4,5-f][1,10]phenanthroline} with calf thymus DNA and yeast tRNA were investigated by UV-vis spectroscopy, fluorescence spectroscopy, viscosity, equilibrium dialysis, and circular dichroism. In addition, the antitumor activities of complex 1 were evaluated with MTT method. These results indicate that the structures of DNA and RNA have significant effects on the binding behaviors of complex 1. Further, complex 1 demonstrates different antitumor activities against selected cancer cell lines in vitro.
Collapse
Affiliation(s)
- Li-Feng Tan
- Key Laboratory of Environment-Friendly Chemistry and Application in Ministry of Education, Xiangtan University, Xiangtan, PR China.
| | | | | | | |
Collapse
|
20
|
Lo KKW, Li SPY, Zhang KY. Development of luminescent iridium(iii) polypyridine complexes as chemical and biological probes. NEW J CHEM 2011. [DOI: 10.1039/c0nj00478b] [Citation(s) in RCA: 195] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
21
|
Mattiuzzi A, Jabin I, Moucheron C, Kirsch-De Mesmaeker A. Ru-TAP complexes with btz and pytz ligands: novel candidates as photooxidizing agents. Dalton Trans 2011; 40:7395-402. [DOI: 10.1039/c1dt10235d] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
22
|
Jang YJ, Lee HM, Lee IB. Comparison of Binding Stoichiometry of [Ru(1,10-phenanthroline) 2dipyrido [3,2-a:2',3'-c]phenazine] 2+and its Bis-derivative to DNA. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.12.3658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
23
|
Wei MY, Guo LH, Famouri P. DNA biosensors based on metallo-intercalator probes and electrocatalytic amplification. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0519-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
24
|
Kwon BH, Choi BH, Lee HM, Jang YJ, Lee JC, Kim SK. Binding Modes of New Bis-Ru(II) Complexes to DNA: Effect of the Length of the Linker. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.6.1615] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
25
|
Vandiver MS, Bridges EP, Koon RL, Kinnaird AN, Glaeser JW, Campbell JF, Priedemann CJ, Rosenblatt WT, Herbert BJ, Wheeler SK, Wheeler JF, Kane-Maguire NAP. Effect of ancillary ligands on the DNA interaction of [Cr(diimine)3]3+ complexes containing the intercalating dipyridophenazine ligand. Inorg Chem 2010; 49:839-48. [PMID: 20039692 DOI: 10.1021/ic9013619] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The synthesis of photoluminescent Cr(III) complexes of the type [Cr(diimine)(2)(DPPZ)](3+) are described, where DPPZ is the intercalating dipyridophenazine ligand, and diimine corresponds to the ancillary ligands bpy, phen, DMP, and TMP (where bpy = 2,2'-bipyridine, phen = 1,10-phenanthroline, DMP = 5,6-dimethyl-1,10-phenanthroline, and TMP = 3,4,7,8-tetramethyl-1,10-phenanthroline). For TMP, DMP, and phen as ancillary ligands, the complexes have also been resolved into their Lambda and Delta optical isomers. A comparison of the photophysical and electrochemical properties reveal similar (2)E(g) --> (4)A(2g) (O(h)) emission wavelengths and lifetimes, and a variation of 110 mV in the (2)E(g) excited state oxidizing power. A detailed investigation has been undertaken of ancillary ligand effects on the DNA binding of these complexes with a range of polynucleotides. For all four complexes, emission is quenched by the addition of calf thymus B-DNA, with the emission lifetime data yielding bimolecular quenching rate constants close to the diffusion controlled limit. Equilibrium dialysis studies have established a general predilection for AT base binding sites, while companion experiments with added distamycin (a selective minor groove binder) provide evidence for a minor groove binding preference. For the case of [Cr(TMP)(2)(DPPZ)](3+), concomitant equilibrium dialysis and circular dichroism measurements have demonstrated very strong enantioselective binding by the Lambda optical isomer. The thermodynamics of DNA binding have also been explored via isothermal titration calorimetry (ITC). The ITC data establish that the primary binding mode for all four Cr(III) complexes is entropically driven, a result that is attributed to the highly favorable free energy contribution associated with the hydrophobic transfer of the Cr(III) complexes from solution into the DNA binding site.
Collapse
Affiliation(s)
- M Scott Vandiver
- Department of Chemistry, Furman University, Greenville, South Carolina 29613, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Ruiu T, Garino C, Salassa L, Pizarro AM, Nervi C, Gobetto R, Sadler PJ. Spectroscopic and Computational Study of Ligand Photodissociation from [Ru(dipyrido[3,2-a:2′,3′-c]phenazine)(4-aminopyridine)4]2+. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200900990] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
27
|
Zhang KY, Li SPY, Zhu N, Or IWS, Cheung MSH, Lam YW, Lo KKW. Structure, Photophysical and Electrochemical Properties, Biomolecular Interactions, and Intracellular Uptake of Luminescent Cyclometalated Iridium(III) Dipyridoquinoxaline Complexes. Inorg Chem 2010; 49:2530-40. [DOI: 10.1021/ic902465b] [Citation(s) in RCA: 133] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kenneth Yin Zhang
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P.R. China
| | - Steve Po-Yam Li
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P.R. China
| | - Nianyong Zhu
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China
| | - Iyana Wai-Shan Or
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P.R. China
| | - Maggie Shau-Ha Cheung
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P.R. China
| | - Yun-Wah Lam
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P.R. China
| | - Kenneth Kam-Wing Lo
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P.R. China
| |
Collapse
|
28
|
Lo KKW. Exploitation of Luminescent Organometallic Rhenium(I) and Iridium(III) Complexes in Biological Studies. TOP ORGANOMETAL CHEM 2010. [DOI: 10.1007/3418_2009_3] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
29
|
|
30
|
Tamura M, Yamagishi M, Kawamoto T, Igashira-Kamiyama A, Tsuge K, Konno T. Synthesis and Linkage Isomerization of Thiolato-Bridged RuIIAgIRuII Trinuclear Complex with d-Penicillaminate. Inorg Chem 2009; 48:8998-9004. [DOI: 10.1021/ic901181x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Motoshi Tamura
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Masakazu Yamagishi
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Tatsuya Kawamoto
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Asako Igashira-Kamiyama
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Kiyoshi Tsuge
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Takumi Konno
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| |
Collapse
|
31
|
Pierce SE, Kieltyka R, Sleiman HF, Brodbelt JS. Evaluation of binding selectivities and affinities of platinum-based quadruplex interactive complexes by electrospray ionization mass spectrometry. Biopolymers 2009; 91:233-43. [PMID: 19117031 DOI: 10.1002/bip.21130] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The quadruplex binding affinities and selectivities of two large pi-surface Pt(II) phenanthroimidazole complexes, as well as a smaller pi-surface platinum bipyridine complex and a larger Ru(II) complex, were evaluated by electrospray ionization mass spectrometry. Circular dichroism (CD) spectroscopy was used to determine the structures of various quadruplexes and to study the thermal denaturation of the quadruplexes in the absence and presence of the metal complexes. In addition, chemical probe reactions with glyoxal were used to monitor the changes in the quadruplex conformation because of association with the complexes. The platinum phenanthroimidazole complexes show increased affinity for several of the quadruplexes with elongated loops between guanine repeats. Quadruplexes with shorter loops exhibited insubstantial binding to the transition metal complexes. Similarly binding to duplex and single strand oligonucleotides was low overall. Although the ruthenium-based metal complex showed somewhat enhanced quadruplex binding, the Pt(II) complexes had higher quadruplex affinities and selectivities that are attributed to their square planar geometries. The chemical probe reactions using glyoxal indicated increased reactivity when the platinum phenanthroimidazole complexes were bound to the quadruplexes, thus suggesting a conformational change that alters guanine accessibility.
Collapse
Affiliation(s)
- Sarah E Pierce
- Department of Chemistry and Biochemistry, The University of Texas at Austin, Austin, TX 78712, USA
| | | | | | | |
Collapse
|
32
|
Haeubl M, Reith LM, Gruber B, Karner U, Müller N, Knör G, Schoefberger W. DNA interactions and photocatalytic strand cleavage by artificial nucleases based on water-soluble gold(III) porphyrins. J Biol Inorg Chem 2009; 14:1037-52. [PMID: 19471974 DOI: 10.1007/s00775-009-0547-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2009] [Accepted: 05/04/2009] [Indexed: 11/28/2022]
Abstract
The novel gold porphyrin complex (5,10,15-tris(N-methylpyridinium-4-yl)-20-(1-pyrenyl)-porphyrinato)gold(III) chloride, [Au(III)(TMPy3Pyr1P)]Cl4, was prepared and characterized by optical spectroscopy, high-resolution nuclear magnetic resonance (NMR), and electrospray mass spectrometry. This cationic multichromophore compound exhibits excellent water solubility and does not form aggregates under physiological conditions. Binding interactions of this complex and related model compounds with nucleic acid substrates have been studied and characterized by NMR and circular dichroism spectroscopy. The photoreactivity of [Au(III)(TMPy3Pyr1P)]Cl4 was investigated under anaerobic and aerobic conditions in the presence of an excess of purine nucleoside, guanosine, and plasmid DNA. Photocatalytic oxidative degradation of guanosine and the change from supercoiled to circular plasmid DNA upon monochromatic irradiation and polychromatic blue-light exposure with a maximum at 420 nm was explored. The potential of the novel water-soluble cationic metallointercalator complex [Au(III)(TMPy3Pyr1P)]Cl4 to serve as a catalytic photonuclease for the cleavage of DNA has been demonstrated.
Collapse
Affiliation(s)
- Martin Haeubl
- Institut für Organische Chemie, Johannes Kepler Universität Linz (JKU), Altenberger Str. 69, 4040 Linz, Austria
| | | | | | | | | | | | | |
Collapse
|
33
|
Kovbasyuk L, Moucheron C, Dubois P, Kirsch-De Mesmaeker A. Probing the interaction between DNA and cell transfection polymers with luminescent RuIIcomplexes. NEW J CHEM 2009. [DOI: 10.1039/b815193h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
34
|
Moucheron C. From cisplatin to photoreactive Ru complexes: targeting DNA for biomedical applications. NEW J CHEM 2009. [DOI: 10.1039/b817016a] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
35
|
Sun P, Krishnan A, Yadav A, MacDonnell FM, Armstrong DW. Enantioseparations of Chiral Ruthenium(II) Polypyridyl Complexes Using HPLC with Macrocyclic Glycopeptide Chiral Stationary Phases (CSPs). J Mol Struct 2008; 890:75-80. [PMID: 25635147 PMCID: PMC4307835 DOI: 10.1016/j.molstruc.2008.02.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A high performance liquid chromatographic method using macrocyclic glycopeptide chiral stationary phases (CSPs) was used to separate enantiomers of seven ruthenium(II) polypyridyl complexes. Among the five different CSPs, the Chirobiotic T2 was most effective and baseline separated all complexes. All complexes show the same elution order with the Δ-enantiomer being retained longer than the Λ-enantiomer. The mobile phase composition, including organic modifier type, organic modifier percent, salt type, and salt concentration, produced significant effects on the enantioresolution.
Collapse
Affiliation(s)
- Ping Sun
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, TX 76019, USA
| | - Arthi Krishnan
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, TX 76019, USA
| | - Abhishek Yadav
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, TX 76019, USA
| | - Frederick M MacDonnell
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, TX 76019, USA
| | - Daniel W Armstrong
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, TX 76019, USA
| |
Collapse
|
36
|
Chisholm MH, Chou PT, Chou YH, Ghosh Y, Gustafson TL, Ho ML. Preparations and Photophysical Properties of Fused and Nonfused Thienyl Bridged MM (M = Mo or W) Quadruply Bonded Complexes. Inorg Chem 2008; 47:3415-25. [DOI: 10.1021/ic800090n] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Malcolm H. Chisholm
- Department of Chemistry, The Ohio State University, 100 West 18 Avenue, Columbus, Ohio 43210-1185, and Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Pi-Tai Chou
- Department of Chemistry, The Ohio State University, 100 West 18 Avenue, Columbus, Ohio 43210-1185, and Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Yi-Hsuan Chou
- Department of Chemistry, The Ohio State University, 100 West 18 Avenue, Columbus, Ohio 43210-1185, and Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Yagnaseni Ghosh
- Department of Chemistry, The Ohio State University, 100 West 18 Avenue, Columbus, Ohio 43210-1185, and Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Terry L. Gustafson
- Department of Chemistry, The Ohio State University, 100 West 18 Avenue, Columbus, Ohio 43210-1185, and Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Mei-Lin Ho
- Department of Chemistry, The Ohio State University, 100 West 18 Avenue, Columbus, Ohio 43210-1185, and Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
| |
Collapse
|
37
|
Studies on cytotoxic and DNA-binding properties of two ruthenium(II) complexes of a substituted phenanthroline ligand. TRANSIT METAL CHEM 2008. [DOI: 10.1007/s11243-008-9071-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
38
|
McDonnell U, Kerchoffs JMCA, Castineiras RPM, Hicks MR, Hotze ACG, Hannon MJ, Rodger A. Synthesis and cytotoxicity of dinuclear complexes containing ruthenium(ii) bipyridyl units linked by a bis(pyridylimine) ligand. Dalton Trans 2008:667-75. [DOI: 10.1039/b711080d] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
39
|
Herman L, Ghosh S, Defrancq E, Mesmaekera AKD. Ru(II) complexes and light: molecular tools for biomolecules. J PHYS ORG CHEM 2008. [DOI: 10.1002/poc.1355] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
40
|
Sun P, Krishnan A, Yadav A, Singh S, MacDonnell FM, Armstrong DW. Enantiomeric Separations of Ruthenium(II) Polypyridyl Complexes Using High-Performance Liquid Chromatography (HPLC) with Cyclodextrin Chiral Stationary Phases (CSPs). Inorg Chem 2007; 46:10312-20. [DOI: 10.1021/ic701023x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ping Sun
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Texas 76019
| | - Arthi Krishnan
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Texas 76019
| | - Abhishek Yadav
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Texas 76019
| | - Shreeyukta Singh
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Texas 76019
| | | | - Daniel W. Armstrong
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Texas 76019
| |
Collapse
|
41
|
Herman L, Elias B, Pierard F, Moucheron C, Mesmaeker AKD. Effects of Protonation on the Spectroscopic Properties of Tetrapyridoacridine (TPAC) Mono- and Dinuclear Ru(II) Complexes in Their Ground and 3MLCT Excited States. J Phys Chem A 2007; 111:9756-63. [PMID: 17727275 DOI: 10.1021/jp072782p] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The spectroscopic behavior of mono- and dinuclear Ru(II) complexes (P, T, PP and TT, Figure 1) that contain the extended planar ligand tetrapyrido[3,2-a:2',3'-c:3' ',2' '-h:2' '',3' ''-j]acridine (TPAC) and either 1,10-phenanthroline (phen) or 1,4,5,8-tetraazaphenanthrene (tap) as ancillary ligands is examined in water and as a function of the pH. These four complexes luminesce in aqueous solution. The analyses of the data in absorption lead to the pKa values in the ground state, and the data in emission show that the excited 3MLCT states are much more basic than the ground state. When the complex contains tap ligands (T and TT), a decrease in pH transforms the luminescent excited basic form into another luminescent excited protonated species, which emits more bathochromically. In contrast, with phen ancillary ligands (P and PP), the protonated excited state does not luminesce. The rate constant of first protonation of the 3MLCT state is diffusion controlled, except for the dinuclear PP complex, whose protonation takes place on the nitrogen of the acridine motif. For P, in which the protonation process is the fastest, it would take place on the nitrogen atoms of the nonchelated phen moiety of the TPAC ligand. These results allow also us to gain information on the localization of the excited electron in the 1MLCT state populated upon absorption as well as in the relaxed 3MLCT emissive state. Moreover as these complexes are interesting for their study with DNA, it can be concluded from these data that a portion of the excited species in interaction with DNA will be protonated.
Collapse
Affiliation(s)
- Leslie Herman
- Service de Chimie Organique et Photochimie, CP 160/08, Université libre de Bruxelles, 50 Avenue F.D. Roosevelt, B-1050 Bruxelles, Belgium
| | | | | | | | | |
Collapse
|
42
|
Synthesis, characterization and RNA-binding properties of a novel ruthenium(II) complex coordinated by 5-pyridine-10,15,20-triphenylporphyrin. TRANSIT METAL CHEM 2007. [DOI: 10.1007/s11243-007-0207-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
43
|
Ruiz GT, Juliarena MP, Lezna RO, Wolcan E, Feliz MR, Ferraudi G. Intercalation of fac-[(4,4'-bpy)ReI(CO)3(dppz)]+, dppz = dipyridyl[3,2-a:2'3'-c]phenazine, in polynucleotides. On the UV-vis photophysics of the Re(I) intercalator and the redox reactions with pulse radiolysis-generated radicals. Dalton Trans 2007:2020-9. [PMID: 17502935 DOI: 10.1039/b614970g] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The intercalation of fac-[(4,4'-bpy)Re(I)(CO)3(dppz)]+ (dppz = dipyridyl[3,2-a:2'3'-c]phenazine) in polynucleotides, poly[dAdT]2 and poly[dGdC]2, where A = adenine, G = guanine, C = cytosine and T = thymine, is a major cause of changes in the absorption and emission spectra of the complex. A strong complex-poly[dAdT]2 interaction drives the intercalation process, which has a binding constant, Kb approximately 1.8 x 10(5) M(-1). Pulse radiolysis was used for a study of the redox reactions of e(-)(aq), C*H(2)OH and N3* radicals with the intercalated complex. These radicals exhibited more affinity for the intercalated complex than for the bases. Ligand-radical complexes, fac-[(4,4'-bpy*)Re(I)(CO)3(dppz)] and fac-[(4,4'-bpy)Re(I)(CO)3(dppz *)], were produced by e(-)(aq) and C*H(2)OH, respectively. A Re(II) species, fac-[(4,4'-bpy)Re(II)(CO)3(dppz)](2+), was produced by N3* radicals. The rate of annihilation of the ligand-radical species was second order on the concentration of ligand-radical while the disappearance of the Re(II) complex induced the oxidative cleavage of the polynucleotide strand.
Collapse
Affiliation(s)
- G T Ruiz
- INIFTA, Universidad Nacional de La Plata, C. C. 16, Suc. 4, 1900, La Plata, Argentina
| | | | | | | | | | | |
Collapse
|
44
|
Janaratne TK, Ongeri F, Yadav A, MacDonnell FM. Preferential DNA cleavage under anaerobic conditions by a DNA-binding ruthenium dimer. Inorg Chem 2007; 46:3420-2. [PMID: 17388584 PMCID: PMC2525620 DOI: 10.1021/ic0619714] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
In the absence of dioxygen, the cationic complex [(phen)2Ru(tatpp)Ru(phen)2]4+ (P4+) undergoes in situ reduction by glutathione (GSH) to form a species that induces DNA cleavage. Exposure to air strongly attenuates the cleavage activity, even in the presence of a large excess of reducing agent (e.g., 40 equiv of GSH per P4+), suggesting that the complex may be useful in targeting cells with a low-oxygen microenvironment (hypoxia) for destruction via DNA cleavage. The active species is identified as the doubly reduced, doubly protonated complex H2P4+, and a carbon-based radical species is implicated in the cleavage action. We postulate that the dioxygen concentration regulates the degree to which the carbon radical forms and thus regulates the DNA cleavage activity.
Collapse
|
45
|
Lo KKW, Lee TKM. Luminescent ruthenium(II) amidodipyridoquinoxaline biotin complexes that display higher avidin-induced emission enhancement. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2006.07.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
46
|
Hannon MJ. Metal-based anticancer drugs: From a past anchored in platinum chemistry to a post-genomic future of diverse chemistry and biology. PURE APPL CHEM 2007. [DOI: 10.1351/pac200779122243] [Citation(s) in RCA: 242] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The field of metal-based anticancer drugs was initiated by cisplatin, one of the leading agents in clinical use. Cisplatin acts by binding to DNA and forming 1,2 intrastrand cross-links. Its importance is reflected by the fact that it is estimated that 50-70 % of cancer patients are treated with a platinum drug [7]. For some time, molecular designs in the metallo-drug field remained obdurately anchored in cis-diamine platinum(II) chemistry, but now the field is evolving rapidly with a variety of alternate and very diverse designs being explored. These designs give rise to new spectra of activity and potency and can circumvent cisplatin resistance. This critical review considers the existing clinical platinum drugs, and those currently in commercial development, alongside the new designs including ruthenium anticancer and antimetastatic drugs in clinical trials, polynuclear drugs, organometallic drugs, titanium and gallium drugs, and emerging supramolecular metallo-drugs that act on DNA by noncovalent interactions. The rapid evolution of the field is being informed by post-genomic knowledge and approaches, and further dramatic step-change breakthroughs can be expected as a result; harnessing this knowledge and responding to and taking advantage of this new environment requires integration of chemistry and biology research.
Collapse
Affiliation(s)
- Michael J. Hannon
- 1School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| |
Collapse
|
47
|
Müller J, Lippert B. Erzwingung oder Erkennung einer dreiarmigen DNA-Kreuzung: Metall-Tripelhelicat trifft Doppelhelix. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200600031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
48
|
Müller J, Lippert B. Imposing a Three-Way Junction on DNA or Recognizing One: A Metal Triple Helicate Meets Double Helix. Angew Chem Int Ed Engl 2006; 45:2503-5. [PMID: 16548027 DOI: 10.1002/anie.200600031] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jens Müller
- Fachbereich Chemie, Universität Dortmund, 44221 Dortmund, Germany.
| | | |
Collapse
|
49
|
Lo KKW. Luminescent Transition Metal Complexes as Biological Labels and Probes. PHOTOFUNCTIONAL TRANSITION METAL COMPLEXES 2006. [DOI: 10.1007/430_2006_040] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|