1
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Huynh M, Vinck R, Gibert B, Gasser G. Strategies for the Nuclear Delivery of Metal Complexes to Cancer Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311437. [PMID: 38174785 DOI: 10.1002/adma.202311437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/20/2023] [Indexed: 01/05/2024]
Abstract
The nucleus is an essential organelle for the function of cells. It holds most of the genetic material and plays a crucial role in the regulation of cell growth and proliferation. Since many antitumoral therapies target nucleic acids to induce cell death, tumor-specific nuclear drug delivery could potentiate therapeutic effects and prevent potential off-target side effects on healthy tissue. Due to their great structural variety, good biocompatibility, and unique physico-chemical properties, organometallic complexes and other metal-based compounds have sparked great interest as promising anticancer agents. In this review, strategies for specific nuclear delivery of metal complexes are summarized and discussed to highlight crucial parameters to consider for the design of new metal complexes as anticancer drug candidates. Moreover, the existing opportunities and challenges of tumor-specific, nucleus-targeting metal complexes are emphasized to outline some new perspectives and help in the design of new cancer treatments.
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Affiliation(s)
- Marie Huynh
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry of Life and Health Sciences, Laboratory for Inorganic Chemistry, Paris, F-75005, France
- Gastroenterology and technologies for Health, Centre de Recherche en Cancérologie de Lyon, INSERM U1052-CNRS5286, Université Lyon 1, Lyon, 69008, France
| | - Robin Vinck
- Orano, 125 avenue de Paris, Châtillon, 92320, France
| | - Benjamin Gibert
- Gastroenterology and technologies for Health, Centre de Recherche en Cancérologie de Lyon, INSERM U1052-CNRS5286, Université Lyon 1, Lyon, 69008, France
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry of Life and Health Sciences, Laboratory for Inorganic Chemistry, Paris, F-75005, France
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2
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Sutton GD, Jiang C, Liu G, Teets TS. Ratiometric oxygen sensors of cyclometalated iridium(III) with enhanced quantum yields and variable dynamic ranges. Dalton Trans 2023; 52:3195-3202. [PMID: 36794766 DOI: 10.1039/d3dt00350g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Four luminescent ratiometric oxygen sensors, pairing phosphorescent cyclometalated iridium with coumarin or BODIPY fluorophores, are presented here. These compounds realize three key improvements over our previous designs, namely higher phosphorescence quantum yields, the ability to access intermediate dynamic ranges better suited for typical atmospheric O2 levels, and the possibility of using visible excitation instead of UV. These ratiometric sensors are accessed via very simple, 1-step syntheses involving direct reaction of the chloro-bridged cyclometalated iridium dimer with the pyridyl-substituted fluorophore. They have phosphorescent quantum yields up to 29% with short to intermediate phosphoresence lifetimes ranging from 1.7 to 5.3 μs in three of the sensors, with the fourth having a long lifetime of 440 μs that is very responsive to oxygen. In one case, visible excitation of 430 nm is used to provide dual emission instead of UV excitation.
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Affiliation(s)
- Gregory D Sutton
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Room 112, Houston, TX, 77204-5003, USA.
| | - Chenggang Jiang
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Room 112, Houston, TX, 77204-5003, USA.
| | - Gardenia Liu
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Room 112, Houston, TX, 77204-5003, USA.
| | - Thomas S Teets
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Room 112, Houston, TX, 77204-5003, USA.
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3
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Owen Bonello R, Pitak MB, Tizzard GJ, Coles SJ, Fallis IA, Pope SJ. Aryl, bi-functionalised imidazo[4,5-f]-1,10-phenanthroline ligands and their luminescent rhenium(I) complexes. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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4
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Metal Peptide Conjugates in Cell and Tissue Imaging and Biosensing. Top Curr Chem (Cham) 2022; 380:30. [PMID: 35701677 PMCID: PMC9197911 DOI: 10.1007/s41061-022-00384-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 05/10/2022] [Indexed: 11/05/2022]
Abstract
Metal complex luminophores have seen dramatic expansion in application as imaging probes over the past decade. This has been enabled by growing understanding of methods to promote their cell permeation and intracellular targeting. Amongst the successful approaches that have been applied in this regard is peptide-facilitated delivery. Cell-permeating or signal peptides can be readily conjugated to metal complex luminophores and have shown excellent response in carrying such cargo through the cell membrane. In this article, we describe the rationale behind applying metal complexes as probes and sensors in cell imaging and outline the advantages to be gained by applying peptides as the carrier for complex luminophores. We describe some of the progress that has been made in applying peptides in metal complex peptide-driven conjugates as a strategy for cell permeation and targeting of transition metal luminophores. Finally, we provide key examples of their application and outline areas for future progress.
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5
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Canisares FSM, Mutti AMG, Santana EF, Oliveira VC, Cavalcante DGSM, Job AE, Pires AM, Lima SAM. Red-emitting heteroleptic iridium(III) complexes: photophysical and cell labeling study. Photochem Photobiol Sci 2022; 21:1077-1090. [PMID: 35304728 DOI: 10.1007/s43630-022-00200-8] [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: 10/26/2021] [Accepted: 03/03/2022] [Indexed: 11/30/2022]
Abstract
Two red-emitting heteroleptic iridium(III) complexes (Ir-p and Ir-q) were synthesized and their photophysical and biological properties were analyzed. After their structures have been confirmed by several techniques, such as 1H NMR, 13C NMR, FT-IR, UV-Vis, and MALDI TOF analyses, their luminescence behavior was investigated in ethanol and PBS (physiological medium, pH ~ 7.4) solutions. Emission spectra of both complexes are dominated by 3MLCT states at room temperature in ethanolic solution, but at 77 K the Ir-q exhibits the 3LC as the dominant emission state. The Ir-q complex shows one of the highest emission quantum yields, 11.5%, for a red emitter based on iridium(III) complexes in aerated PBS solution, with color coordinates (x;y) of (0.712;0.286). Moreover, both complexes display high potential to be used as a biological marker with excitation wavelengths above 400 nm, high water solubility (Ir-p 1838 μmol L-1, Ir-q 7601 μmol L-1), and distinct emission wavelengths from the biological autofluorescence. Their cytotoxicity was analyzed in CHO-k1 cells by MTT assays, and the IC50 was estimated as being higher than 131 μmol L-1 for Ir-p, and higher than 116 μmol L-1 for Ir-q. Concentrations above 70% of viability were used to perform cell imaging by confocal and fluorescence microscopies and the results suggest that the complexes were internalized by the cell membrane and they are staining the cytoplasm region.
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Affiliation(s)
- Felipe S M Canisares
- School of Technology and Sciences, São Paulo State University (Unesp), R. Roberto Simonsen, 305, Presidente Prudente, SP, 19060-900, Brazil.,Institute of Chemistry, São Paulo State University (Unesp), Araraquara, Brazil.,Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (Unesp), São José Do Rio Preto, SP, Brazil
| | - Alessandra M G Mutti
- School of Technology and Sciences, São Paulo State University (Unesp), R. Roberto Simonsen, 305, Presidente Prudente, SP, 19060-900, Brazil
| | - Edy F Santana
- School of Technology and Sciences, São Paulo State University (Unesp), R. Roberto Simonsen, 305, Presidente Prudente, SP, 19060-900, Brazil
| | - Vytor C Oliveira
- School of Technology and Sciences, São Paulo State University (Unesp), R. Roberto Simonsen, 305, Presidente Prudente, SP, 19060-900, Brazil
| | - Dalita G S M Cavalcante
- School of Technology and Sciences, São Paulo State University (Unesp), R. Roberto Simonsen, 305, Presidente Prudente, SP, 19060-900, Brazil
| | - Aldo E Job
- School of Technology and Sciences, São Paulo State University (Unesp), R. Roberto Simonsen, 305, Presidente Prudente, SP, 19060-900, Brazil
| | - Ana M Pires
- School of Technology and Sciences, São Paulo State University (Unesp), R. Roberto Simonsen, 305, Presidente Prudente, SP, 19060-900, Brazil.,Institute of Chemistry, São Paulo State University (Unesp), Araraquara, Brazil.,Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (Unesp), São José Do Rio Preto, SP, Brazil
| | - Sergio A M Lima
- School of Technology and Sciences, São Paulo State University (Unesp), R. Roberto Simonsen, 305, Presidente Prudente, SP, 19060-900, Brazil.
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6
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Zhang H, Tian L, Xiao R, Zhou Y, Zhang Y, Hao J, Liu Y, Wang J. Anticancer effect evaluation in vitro and in vivo of iridium(III) polypyridyl complexes targeting DNA and mitochondria. Bioorg Chem 2021; 115:105290. [PMID: 34426145 DOI: 10.1016/j.bioorg.2021.105290] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/30/2021] [Accepted: 08/16/2021] [Indexed: 12/26/2022]
Abstract
To investigate the antitumor effect of iridium complexes, three iridium (III) complexes [Ir(ppy)2(dcdppz)]PF6 (ppy = 2-phenylpyridine, dcdppz = 11,12-dichlorodipyrido[3,2-a:2',3'-c]phenazine) (Ir1), [Ir(bzq)2(dcdppz)]PF6 (bzq = benzo[h]quinoline) (Ir2) and [Ir(piq)2(dcdppz)]PF6 (piq = 1-phenylisoquinoline) (Ir3) were synthesized and characterized. Geometry optimization, molecular dynamics simulation and docking studies have been performed to further explore the antitumor mechanism. The cytotoxicity of Ir1-3 toward cancer cells was studied by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method. The localization of complexes Ir1-3 in the mitochondria, intracellular accumulation of reactive oxygen species (ROS) levels, the changes of mitochondrial membrane potential and morphological changes in apoptosis were investigated. Flow cytometry was applied to quantify fluorescence intensity and determine cell cycle distribution. Western blotting was used to detect the expression of apoptosis-related proteins. The anti-tumor effect of Ir1 in vivo was evaluated. The results showed that Ir1-3 had high cytotoxicity to most tumor cells, especially to SGC-7901 cells with a low IC50 value. Ir1-3 can increase the intracellular ROS levels, reduce the mitochondrial membrane potential. Additionally, the complexes induce an increase of apoptosis-related protein expression, enhance the percentage of apoptosis. The complexes inhibit the cell proliferation at G0/G1 phase. The results obtained from antitumor in vivo indicate that Ir1 can significantly inhibit the growth of tumors with an inhibitory rate of 54.08%. The docking studies show that complexes Ir1-3 interact with DNA through minor-groove intercalation, which increases the distance of DNA base pairs, leading to a change of DNA helix structure. These experimental and theoretical findings indicate that complexes Ir1-3 can induce apoptosis in SGC-7901 cells through the mitochondrial dysfunction and DNA damage pathways, and then exerting anti-tumor activity in vitro and vivo.
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Affiliation(s)
- Huiwen Zhang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Li Tian
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Rongxing Xiao
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Yi Zhou
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Yuanyuan Zhang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Jing Hao
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Yunjun Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
| | - Juping Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
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7
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Holden L, Burke CS, Cullinane D, Keyes TE. Strategies to promote permeation and vectorization, and reduce cytotoxicity of metal complex luminophores for bioimaging and intracellular sensing. RSC Chem Biol 2021; 2:1021-1049. [PMID: 34458823 PMCID: PMC8341117 DOI: 10.1039/d1cb00049g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 04/30/2021] [Indexed: 12/19/2022] Open
Abstract
Transition metal luminophores are emerging as important tools for intracellular imaging and sensing. Their putative suitability for such applications has long been recognised but poor membrane permeability and cytotoxicity were significant barriers that impeded early progress. In recent years, numerous effective routes to overcoming these issues have been reported, inspired in part, by advances and insights from the pharmaceutical and drug delivery domains. In particular, the conjugation of biomolecules but also other less natural synthetic species, from a repertoire of functional motifs have granted membrane permeability and cellular targeting. Such motifs can also reduce cytotoxicity of transition metal complexes and offer a valuable avenue to circumvent such problems leading to promising metal complex candidates for application in bioimaging, sensing and diagnostics. The advances in metal complex probes permeability/targeting are timely, as, in parallel, over the past two decades significant technological advances in luminescence imaging have occurred. In particular, super-resolution imaging is enormously powerful but makes substantial demands of its imaging contrast agents and metal complex luminophores frequently possess the photophysical characteristics to meet these demands. Here, we review some of the key vectors that have been conjugated to transition metal complex luminophores to promote their use in intra-cellular imaging applications. We evaluate some of the most effective strategies in terms of membrane permeability, intracellular targeting and what impact these approaches have on toxicity and phototoxicity which are important considerations in a luminescent contrast or sensing agent.
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Affiliation(s)
- Lorcan Holden
- School of Chemical Sciences, and National Centre for Sensor Research Dublin City University Dublin 9 Ireland
| | - Christopher S Burke
- School of Chemical Sciences, and National Centre for Sensor Research Dublin City University Dublin 9 Ireland
| | - David Cullinane
- School of Chemical Sciences, and National Centre for Sensor Research Dublin City University Dublin 9 Ireland
| | - Tia E Keyes
- School of Chemical Sciences, and National Centre for Sensor Research Dublin City University Dublin 9 Ireland
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8
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Gkika K, Noorani S, Walsh N, Keyes TE. Os(II)-Bridged Polyarginine Conjugates: The Additive Effects of Peptides in Promoting or Preventing Permeation in Cells and Multicellular Tumor Spheroids. Inorg Chem 2021; 60:8123-8134. [PMID: 33978399 PMCID: PMC8277133 DOI: 10.1021/acs.inorgchem.1c00769] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Indexed: 12/05/2022]
Abstract
The preparation of two polyarginine conjugates of the complex Os(II) [bis-(4'-(4-carboxyphenyl)-2,2':6',2″-terpyridine)] [Os-(Rn)2]x+ (n = 4 and 8; x = 10 and 18) is reported, to explore whether the R8 peptide sequence that promotes cell uptake requires a contiguous amino acid sequence for membrane permeation or if this can be accomplished in a linearly bridged structure with the additive effect of shorter peptide sequences. The conjugates exhibit NIR emission centered at 754 nm and essentially oxygen-insensitive emission with a lifetime of 89 ns in phosphate-buffered saline. The uptake, distribution, and cytotoxicity of the parent complex and peptide derivatives were compared in 2D cell monolayers and a three-dimensional (3D) multicellular tumor spheroid (MCTS) model. Whereas, the bis-octaarginine sequences were impermeable to cells and spheroids, and the bis-tetraarginine conjugate showed excellent cellular uptake and accumulation in two 2D monolayer cell lines and remarkable in-depth penetration of 3D MCTSs of pancreatic cancer cells. Overall, the data indicates that cell permeability can be promoted via non-contiguous sequences of arginine residues bridged across the metal centre.
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Affiliation(s)
- Karmel
S. Gkika
- School
of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland
| | - Sara Noorani
- School
of Biotechnology, National Institute for Cellular Biotechnology, Dublin City University, Dublin 9, Ireland
| | - Naomi Walsh
- School
of Biotechnology, National Institute for Cellular Biotechnology, Dublin City University, Dublin 9, Ireland
| | - Tia E. Keyes
- School
of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland
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9
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Yasukagawa M, Shimada A, Shiozaki S, Tobita S, Yoshihara T. Phosphorescent Ir(III) complexes conjugated with oligoarginine peptides serve as optical probes for in vivo microvascular imaging. Sci Rep 2021; 11:4733. [PMID: 33637825 PMCID: PMC7910296 DOI: 10.1038/s41598-021-84115-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 01/27/2021] [Indexed: 02/06/2023] Open
Abstract
Imaging the vascular structures of organ and tumor tissues is extremely important for assessing various pathological conditions. Herein we present the new vascular imaging probe BTQ-Rn (n = 8, 12, 16), a phosphorescent Ir(III) complex containing an oligoarginine peptide as a ligand. This microvasculature staining probe can be chemically synthesized, unlike the commonly used tomato lectins labeled with a fluorophore such as fluorescein isothiocyanate (FITC). Intravenous administration of BTQ-R12 to mice and subsequent confocal luminescence microscope measurements enabled in vivo vascular imaging of tumors and various organs, including kidney, liver and pancreas. Dual color imaging of hepatic tissues of living mice fed a high-fat diet using BTQ-R12 and the lipid droplet-specific probe PC6S revealed small and large lipid droplets in the hepatocytes, causing distortion of the sinusoidal structure. BTQ-R12 selectively stains vascular endothelium and thus allows longer-term vascular network imaging compared to fluorescent dextran with a molecular weight of 70 kDa that circulate in the bloodstream. Furthermore, time-gated measurements using this phosphorescent vascular probe enabled imaging of blood vessel structures without interference from autofluorescence.
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Affiliation(s)
- Mami Yasukagawa
- grid.256642.10000 0000 9269 4097Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515 Japan
| | - Aya Shimada
- grid.256642.10000 0000 9269 4097Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515 Japan
| | - Shuichi Shiozaki
- grid.256642.10000 0000 9269 4097Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515 Japan
| | - Seiji Tobita
- grid.256642.10000 0000 9269 4097Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515 Japan
| | - Toshitada Yoshihara
- grid.256642.10000 0000 9269 4097Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515 Japan
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10
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New iridium complexes(III) bearing 2-phenylimidazo[4,5-f][1,10]-phenanthroline ligand: Synthesis, characterization, electrochemical and photoluminescence studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Wang W, Wu K, Vellaisamy K, Leung C, Ma D. Peptide‐Conjugated Long‐Lived Theranostic Imaging for Targeting GRPr in Cancer and Immune Cells. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wanhe Wang
- Department of Chemistry Hong Kong Baptist University Kowloon, Hong Kong SAR 999077 China
| | - Ke‐Jia Wu
- Institute of Chinese Medical Sciences and State Key Laboratory of Quality Research in Chinese Medicine University of Macau Taipa, Macau SAR 999078 China
| | - Kasipandi Vellaisamy
- Department of Chemistry Hong Kong Baptist University Kowloon, Hong Kong SAR 999077 China
| | - Chung‐Hang Leung
- Institute of Chinese Medical Sciences and State Key Laboratory of Quality Research in Chinese Medicine University of Macau Taipa, Macau SAR 999078 China
| | - Dik‐Lung Ma
- Department of Chemistry Hong Kong Baptist University Kowloon, Hong Kong SAR 999077 China
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12
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Luengo A, Marzo I, Reback M, Daubit IM, Fernández‐Moreira V, Metzler‐Nolte N, Gimeno MC. Luminescent Bimetallic Ir III /Au I Peptide Bioconjugates as Potential Theranostic Agents. Chemistry 2020; 26:12158-12167. [PMID: 32542887 PMCID: PMC7540463 DOI: 10.1002/chem.202002067] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/12/2020] [Indexed: 01/11/2023]
Abstract
Diverse iridium peptide bioconjugates and the corresponding iridium/gold bimetallic complexes have been synthesized starting from a cyclometallated carboxylic acid substituted IrIII complex [Ir(ppy)2 (Phen-5-COO)] by solid phase peptide synthesis (SPPS). The selected peptide sequences were an enkephalin derivative Tyr-Gly-Gly-Phe-Leu together with the propargyl-substituted species Tyr-Gly-Pgl-Phe-Leu to allow gold coordination (Pgl: propyrgyl-glycine, HC≡C-Gly), and a specific short peptide, Ala-Cys-Ala-Phen, containing a cysteine residue. Introduction of the gold center has been achieved via a click reaction with the alkynyl group leading to an organometallic Au-C(triazole) species, or by direct coordination to the sulfur atom of the cysteine. The photophysical properties of these species revealed predominantly an emission originating from the Ir complex, using mixed metal-to-ligand and ligand-to-ligand charge transfer excited states of triplet multiplicity. The formation of the peptide bioconjugates caused a systematic redshift of the emission profiles. Lysosomal accumulation was observed for all the complexes, in contrast to the expected mitochondrial accumulation triggered by the gold complexes. Only the cysteine-containing Ir/Au bioconjugate displayed cytotoxic activity. The absence of activity may be related to the lack of endosomal/lysosomal escape for the cationic peptide conjugates. Interestingly, the different coordination sphere of the gold atom may play a crucial role, as the Au-S(cysteine) bond may be more readily cleaved in a biological environment than the Au-C(triazole) bond, and thus the Au fragment could be released from or trapped in the lysosomes, respectively. This work represents a starting point in the development of bimetallic peptide bioconjugates as theranostics and in the knowledge of factors that contribute to anti-proliferative activity.
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Affiliation(s)
- Andrés Luengo
- Departamento de Química InorgánicaInstituto de Síntesis QuímicayCatálisis Homogénea (ISQCH)CSIC-Universidad de Zaragoza50009ZaragozaSpain
| | - Isabel Marzo
- Departamento de Bioquímica y Biología CelularUniversidad de Zaragoza-CSIC50009ZaragozaSpain
| | - Matthew Reback
- Inorganic Chemistry I—Bioinorganic ChemistryFaculty of Chemistry and BiochemistryRuhr-Universität BochumUniversitätsstrasse 15044801BochumGermany
| | - Isabelle M. Daubit
- Inorganic Chemistry I—Bioinorganic ChemistryFaculty of Chemistry and BiochemistryRuhr-Universität BochumUniversitätsstrasse 15044801BochumGermany
| | - Vanesa Fernández‐Moreira
- Departamento de Química InorgánicaInstituto de Síntesis QuímicayCatálisis Homogénea (ISQCH)CSIC-Universidad de Zaragoza50009ZaragozaSpain
| | - Nils Metzler‐Nolte
- Inorganic Chemistry I—Bioinorganic ChemistryFaculty of Chemistry and BiochemistryRuhr-Universität BochumUniversitätsstrasse 15044801BochumGermany
| | - M. Concepción Gimeno
- Departamento de Química InorgánicaInstituto de Síntesis QuímicayCatálisis Homogénea (ISQCH)CSIC-Universidad de Zaragoza50009ZaragozaSpain
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13
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Wang W, Wu K, Vellaisamy K, Leung C, Ma D. Peptide‐Conjugated Long‐Lived Theranostic Imaging for Targeting GRPr in Cancer and Immune Cells. Angew Chem Int Ed Engl 2020; 59:17897-17902. [DOI: 10.1002/anie.202007920] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Wanhe Wang
- Department of Chemistry Hong Kong Baptist University Kowloon, Hong Kong SAR 999077 China
| | - Ke‐Jia Wu
- Institute of Chinese Medical Sciences and State Key Laboratory of Quality Research in Chinese Medicine University of Macau Taipa, Macau SAR 999078 China
| | - Kasipandi Vellaisamy
- Department of Chemistry Hong Kong Baptist University Kowloon, Hong Kong SAR 999077 China
| | - Chung‐Hang Leung
- Institute of Chinese Medical Sciences and State Key Laboratory of Quality Research in Chinese Medicine University of Macau Taipa, Macau SAR 999078 China
| | - Dik‐Lung Ma
- Department of Chemistry Hong Kong Baptist University Kowloon, Hong Kong SAR 999077 China
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14
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Yasukagawa M, Yamada K, Tobita S, Yoshihara T. Ratiometric oxygen probes with a cell-penetrating peptide for imaging oxygen levels in living cells. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111983] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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15
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Vellaisamy K, Li G, Wang W, Leung CH, Ma DL. A long-lived peptide-conjugated iridium(iii) complex as a luminescent probe and inhibitor of the cell migration mediator, formyl peptide receptor 2. Chem Sci 2018; 9:8171-8177. [PMID: 30568767 PMCID: PMC6256120 DOI: 10.1039/c8sc02733a] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 09/29/2018] [Indexed: 12/18/2022] Open
Abstract
Formyl peptide receptors play important biological and therapeutic roles in wound repair and inflammatory diseases. In this work, we present a luminescent iridium(iii) complex (6) conjugated with the peptide agonist WKYMVm as a luminescent formyl peptide receptor 2 (FPR2) imaging probe in living cells. Complex 6 displayed ideal cell imaging characteristics, high photostability and low cytotoxicity. Competition assays with a known FPR2 antagonist, WRW4, and siRNA knockdown experiments both revealed that complex 6 selectively targeted FPR2 in living HUVEC cells. Moreover, complex 6 regulated FPR2 signalling in HUVEC cells as shown using a mechanical scratch assay. Finally, complex 6 reduced epithelial cell migration capacity and inhibited lipoxin A4 (LXA4)-triggered cell migration in HUVEC cells, demonstrating the ability of this complex to inhibit FPR2 in living cells. To our knowledge, this is the first long-lived probe for imaging FPR2 in living cells.
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Affiliation(s)
- Kasipandi Vellaisamy
- Department of Chemistry , Hong Kong Baptist University , Kowloon Tong , Hong Kong , China .
| | - Guodong Li
- State Key Laboratory of Quality Research in Chinese Medicine , Institute of Chinese Medical Sciences , University of Macau , Macao , China .
| | - Wanhe Wang
- Department of Chemistry , Hong Kong Baptist University , Kowloon Tong , Hong Kong , China .
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine , Institute of Chinese Medical Sciences , University of Macau , Macao , China .
| | - Dik-Lung Ma
- Department of Chemistry , Hong Kong Baptist University , Kowloon Tong , Hong Kong , China .
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16
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Grüner MC, Zanoni KPS, Borgognoni CF, Melo CC, Zucolotto V, de Camargo ASS. Reaching Biocompatibility with Nanoclays: Eliminating the Cytotoxicity of Ir(III) Complexes. ACS APPLIED MATERIALS & INTERFACES 2018; 10:26830-26834. [PMID: 30063820 DOI: 10.1021/acsami.8b10842] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cyclometalated IrIII complexes are promising candidates for biomedical applications but high cytotoxicity limits their use as imaging and sensing agents. We herein introduce the use of Laponite as carrier for triplet-emitting cyclometalated IrIII complexes. Laponite is a versatile nanoplatform because of its biocompatibility, dispersion stability and large surface area that readily adsorbs functional nonpolar and cationic molecules. These inorganic-organic hybrid nanomaterials mask cytotoxicity, show efficient cell uptake and increase luminescent properties and photostability. By camouflaging intrinsic cytotoxicity, this simple method potentially extends the palette of available imaging and sensing dyes to any metal-organic complexes, especially those that are usually cytotoxic.
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Affiliation(s)
- Malte C Grüner
- Laboratory of Spectroscopy of Functional Materials (LEMAF), São Carlos Institute of Physics , University of São Paulo , Avenida Trabalhador Sãocarlense 400 , 13566-590 , São Carlos , Brazil
| | - Kassio P S Zanoni
- Laboratory of Spectroscopy of Functional Materials (LEMAF), São Carlos Institute of Physics , University of São Paulo , Avenida Trabalhador Sãocarlense 400 , 13566-590 , São Carlos , Brazil
| | - Camila F Borgognoni
- Group of Nanomedicine and Nanotechnology (GNano), São Carlos Institute of Physics , University of São Paulo , Avenida Trabalhador Sãocarlense 400 , 13566-590 , São Carlos , Brazil
| | - Cristiane C Melo
- Group of Nanomedicine and Nanotechnology (GNano), São Carlos Institute of Physics , University of São Paulo , Avenida Trabalhador Sãocarlense 400 , 13566-590 , São Carlos , Brazil
| | - Valtencir Zucolotto
- Group of Nanomedicine and Nanotechnology (GNano), São Carlos Institute of Physics , University of São Paulo , Avenida Trabalhador Sãocarlense 400 , 13566-590 , São Carlos , Brazil
| | - Andrea S S de Camargo
- Laboratory of Spectroscopy of Functional Materials (LEMAF), São Carlos Institute of Physics , University of São Paulo , Avenida Trabalhador Sãocarlense 400 , 13566-590 , São Carlos , Brazil
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17
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Bonello RO, Pitak MB, Coles SJ, Hallett AJ, Fallis IA, Pope SJ. Synthesis and characterisation of phosphorescent rhenium(I) complexes of hydroxy- and methoxy-substituted imidazo[4,5- f ]-1,10-phenanthroline ligands. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.04.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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18
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Dolan C, Byrne A, Long C, Czamara K, Kaczor A, Baranska M, Keyes TE. Polypyridyl substituted BODIPY derivatives; water switchable imaging probes that exhibit halogen substituent dependent localisation in live cells. RSC Adv 2017. [DOI: 10.1039/c7ra07493j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The synthesis and photophysical properties of water responsive 1,10-phenanthrolyl and 2,2′-bipyridyl substituted BODIPY derivatives prepared as lipid probes for cell imaging are reported.
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Affiliation(s)
- Ciarán Dolan
- School of Chemical Sciences
- Dublin City University
- Ireland
- National Centre for Sensor Research
- Dublin City University
| | - Aisling Byrne
- School of Chemical Sciences
- Dublin City University
- Ireland
- National Centre for Sensor Research
- Dublin City University
| | - Conor Long
- School of Chemical Sciences
- Dublin City University
- Ireland
| | - Krzysztof Czamara
- Faculty of Chemistry
- Jagiellonian University
- 30-060 Krakow
- Poland
- Jagiellonian Centre of Experimental Therapeutics (JCET)
| | - Agnieszka Kaczor
- Faculty of Chemistry
- Jagiellonian University
- 30-060 Krakow
- Poland
- Jagiellonian Centre of Experimental Therapeutics (JCET)
| | - Malgorzata Baranska
- Faculty of Chemistry
- Jagiellonian University
- 30-060 Krakow
- Poland
- Jagiellonian Centre of Experimental Therapeutics (JCET)
| | - Tia E. Keyes
- School of Chemical Sciences
- Dublin City University
- Ireland
- National Centre for Sensor Research
- Dublin City University
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19
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Anjong TF, Kim G, Jang HY, Yoon J, Kim J. Diiridium(iii) complexes: luminescent probes and sensors for G-quadruplex DNA and endoplasmic reticulum imaging. NEW J CHEM 2017. [DOI: 10.1039/c6nj02890j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Two new dinuclear iridium (Ir) complexes bridged by a conjugated aromatic tppz ligand, (bhq)2Ir(tppz)Ir(bhq)2(1) and (ppy)2Ir(tppz)Ir(ppy)2(2) (bhq = benzo(h)quinolone, ppy = phenyl-pyridine, tppz = tetrapyrido[3,2-a:2′,3′-c:3′′,2′′-h:2′′′,3′′′-j]phenazine), were prepared.
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Affiliation(s)
| | - Gyoungmi Kim
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 120-750
- Korea
| | - Ha Yoon Jang
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 120-750
- Korea
| | - Juyoung Yoon
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 120-750
- Korea
| | - Jinheung Kim
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 120-750
- Korea
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20
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Low ML, Maigre L, Tahir MIM, Tiekink ER, Dorlet P, Guillot R, Ravoof TB, Rosli R, Pagès JM, Policar C, Delsuc N, Crouse KA. New insight into the structural, electrochemical and biological aspects of macroacyclic Cu(II) complexes derived from S-substituted dithiocarbazate schiff bases. Eur J Med Chem 2016; 120:1-12. [DOI: 10.1016/j.ejmech.2016.04.027] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 03/25/2016] [Accepted: 04/09/2016] [Indexed: 11/28/2022]
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21
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Pieper IL, Radley G, Chan CHH, Friedmann Y, Foster G, Thornton CA. Quantification methods for human and large animal leukocytes using DNA dyes by flow cytometry. Cytometry A 2016; 89:565-74. [DOI: 10.1002/cyto.a.22874] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 02/19/2016] [Accepted: 04/26/2016] [Indexed: 01/18/2023]
Affiliation(s)
- Ina Laura Pieper
- Institute of Life Science, Swansea University Medical School; Swansea SA2 8PP United Kingdom
- Calon Cardio-Technology, Institute of Life Science; Swansea SA2 8PP United Kingdom
| | - Gemma Radley
- Institute of Life Science, Swansea University Medical School; Swansea SA2 8PP United Kingdom
- Calon Cardio-Technology, Institute of Life Science; Swansea SA2 8PP United Kingdom
| | - Chris H. H. Chan
- Institute of Life Science, Swansea University Medical School; Swansea SA2 8PP United Kingdom
- Calon Cardio-Technology, Institute of Life Science; Swansea SA2 8PP United Kingdom
| | - Yasmin Friedmann
- Institute of Life Science, Swansea University Medical School; Swansea SA2 8PP United Kingdom
| | - Graham Foster
- Calon Cardio-Technology, Institute of Life Science; Swansea SA2 8PP United Kingdom
| | - Catherine A. Thornton
- Institute of Life Science, Swansea University Medical School; Swansea SA2 8PP United Kingdom
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22
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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.
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Affiliation(s)
- Aisling Byrne
- School of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Glasnevin, Dublin 9, Ireland.
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23
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Uptake of free, calcium-bound and liposomal encapsulated nitrogen containing bisphosphonates by breast cancer cells. Eur J Pharm Sci 2016; 86:58-66. [DOI: 10.1016/j.ejps.2016.02.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 02/24/2016] [Accepted: 02/26/2016] [Indexed: 01/23/2023]
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24
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Fan Y, Li C, Li F, Chen D. pH-activated size reduction of large compound nanoparticles for in vivo nucleus-targeted drug delivery. Biomaterials 2016; 85:30-9. [DOI: 10.1016/j.biomaterials.2016.01.057] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 01/26/2016] [Accepted: 01/27/2016] [Indexed: 10/24/2022]
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25
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Maity A, Le LQ, Zhu Z, Bao J, Teets TS. Steric and Electronic Influence of Aryl Isocyanides on the Properties of Iridium(III) Cyclometalates. Inorg Chem 2016; 55:2299-308. [DOI: 10.1021/acs.inorgchem.5b02691] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ayan Maity
- Department of Chemistry and ‡Department of Electrical and Computer Engineering, University of Houston, 112 Fleming Building, Houston, Texas 77204, United States
| | - Linh Q. Le
- Department of Chemistry and ‡Department of Electrical and Computer Engineering, University of Houston, 112 Fleming Building, Houston, Texas 77204, United States
| | - Zhuan Zhu
- Department of Chemistry and ‡Department of Electrical and Computer Engineering, University of Houston, 112 Fleming Building, Houston, Texas 77204, United States
| | - Jiming Bao
- Department of Chemistry and ‡Department of Electrical and Computer Engineering, University of Houston, 112 Fleming Building, Houston, Texas 77204, United States
| | - Thomas S. Teets
- Department of Chemistry and ‡Department of Electrical and Computer Engineering, University of Houston, 112 Fleming Building, Houston, Texas 77204, United States
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26
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Gamba I, Salvadó I, Brissos RF, Gamez P, Brea J, Loza MI, Vázquez ME, López MV. High-affinity sequence-selective DNA binding by iridium(iii) polypyridyl organometallopeptides. Chem Commun (Camb) 2016; 52:1234-7. [DOI: 10.1039/c5cc07619f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We demonstrate the application of solid-phase peptide synthesis methods for assembling polynuclear Ir(iii) organometallopeptides that exhibit high DNA-binding affinity, sequence selectivity, and high cytotoxic effect towards a set of cancer cell lines.
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Affiliation(s)
- Ilaria Gamba
- Departamento de Química Inorgánica and Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Iria Salvadó
- Departamento de Química Inorgánica and Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Rosa F. Brissos
- Departament de Química Inorgánica
- QBI
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Patrick Gamez
- Departament de Química Inorgánica
- QBI
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - José Brea
- Grupo de Investigación BioFarma/Plataforma de Screening USEF
- Centro de Investigación CIMUS
- Universidade de Santiago de Compostela
- Spain
| | - María Isabel Loza
- Grupo de Investigación BioFarma/Plataforma de Screening USEF
- Centro de Investigación CIMUS
- Universidade de Santiago de Compostela
- Spain
| | - M. Eugenio Vázquez
- Departamento de Química Orgánica and Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Miguel Vázquez López
- Departamento de Química Inorgánica and Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
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27
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Lian C, Liu L, Guo X, Long Y, Jia S, Li H, Yang L. Honeycomb-shaped coordination polymers based on the self-assembly of long flexible ligands and alkaline-earth ions. J SOLID STATE CHEM 2016. [DOI: 10.1016/j.jssc.2015.10.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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28
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Kallick J, Harris S, Udit AK, Hill MG. Heterogeneous catalysis for azide-alkyne bioconjugation in solution via spin column: Attachment of dyes and saccharides to peptides and DNA. Biotechniques 2015; 59:329-30, 332, 334. [DOI: 10.2144/000114361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 09/07/2015] [Indexed: 11/23/2022] Open
Abstract
Copper-catalyzed azide-alkyne cycloaddition (CuAAC) “click” chemistry is widely used and has demonstrated particular utility for bio-orthogonal conjugation reactions. Here we describe a one-pot, heterogeneous bioconjugation and purification method for selectively activated CuAAC. A Cu(II) precursor, with either the neutral ligand 1,10-phenanthroline-5,6-dione or the anionic ligand 4,7-diphenyl-1,10-phenanthroline-disulfonic acid, is converted to the active Cu(I) species within an ion-exchange matrix using zinc amalgam as the reducing agent. The Cu(I) complexes are then layered on top of a size-exclusion matrix within a commercial microcentrifuge spin column; passing a mixture of an ethynyl-labeled biomolecule and an azide-bearing ligand through the column results in clean and efficient coupling. The methodology is demonstrated by glycosylating a DNA oligonucleotide as well as by labeling a membrane-penetrating peptide (octa-arginine) with a coumarin dye.
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Affiliation(s)
- Jeremy Kallick
- Department of Chemistry, Occidental College, Los Angeles, CA
| | - Sarah Harris
- Department of Chemistry, Occidental College, Los Angeles, CA
| | - Andrew K. Udit
- Department of Chemistry, Occidental College, Los Angeles, CA
| | - Michael G. Hill
- Department of Chemistry, Occidental College, Los Angeles, CA
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29
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Hisamatsu Y, Shibuya A, Suzuki N, Suzuki T, Abe R, Aoki S. Design and Synthesis of Amphiphilic and Luminescent Tris-Cyclometalated Iridium(III) Complexes Containing Cationic Peptides as Inducers and Detectors of Cell Death via a Calcium-Dependent Pathway. Bioconjug Chem 2015; 26:857-79. [DOI: 10.1021/acs.bioconjchem.5b00095] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yosuke Hisamatsu
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical
Sciences, and §Division of Medical
Science-Engineering Corporation, Research Institute of Science and
Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Ai Shibuya
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical
Sciences, and §Division of Medical
Science-Engineering Corporation, Research Institute of Science and
Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Nozomi Suzuki
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical
Sciences, and §Division of Medical
Science-Engineering Corporation, Research Institute of Science and
Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Toshihiro Suzuki
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical
Sciences, and §Division of Medical
Science-Engineering Corporation, Research Institute of Science and
Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Ryo Abe
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical
Sciences, and §Division of Medical
Science-Engineering Corporation, Research Institute of Science and
Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shin Aoki
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical
Sciences, and §Division of Medical
Science-Engineering Corporation, Research Institute of Science and
Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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30
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Medici S, Peana M, Nurchi VM, Lachowicz JI, Crisponi G, Zoroddu MA. Noble metals in medicine: Latest advances. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.08.002] [Citation(s) in RCA: 373] [Impact Index Per Article: 41.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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31
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Martin A, Byrne A, Burke CS, Forster RJ, Keyes TE. Peptide-Bridged Dinuclear Ru(II) Complex for Mitochondrial Targeted Monitoring of Dynamic Changes to Oxygen Concentration and ROS Generation in Live Mammalian Cells. J Am Chem Soc 2014; 136:15300-9. [DOI: 10.1021/ja508043q] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Aaron Martin
- School
of Chemical Sciences, National Biophotonics and Imaging Platform, Dublin City University, Dublin 9, Ireland
| | - Aisling Byrne
- School
of Chemical Sciences, National Biophotonics and Imaging Platform, Dublin City University, Dublin 9, Ireland
| | - Christopher S. Burke
- School
of Chemical Sciences, National Biophotonics and Imaging Platform, Dublin City University, Dublin 9, Ireland
| | - Robert J. Forster
- School
of Chemical Sciences, National Biophotonics and Imaging Platform, Dublin City University, Dublin 9, Ireland
| | - Tia E. Keyes
- School
of Chemical Sciences, National Biophotonics and Imaging Platform, Dublin City University, Dublin 9, Ireland
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32
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Wragg A, Gill MR, Turton D, Adams H, Roseveare TM, Smythe C, Su X, Thomas JA. Tuning the Cellular Uptake Properties of Luminescent Heterobimetallic Iridium(III)–Ruthenium(II) DNA Imaging Probes. Chemistry 2014; 20:14004-11. [DOI: 10.1002/chem.201403693] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Indexed: 01/24/2023]
Affiliation(s)
- Ashley Wragg
- Department of Chemistry, University of Sheffield, Sheffield, S3 9HJ (UK), Fax: (+44) 114‐22‐29436
- Institute of Material Research and Engineering, A*STAR (Agency for Science, Technology and Research, Singapore)
| | - Martin R. Gill
- Department of Biomedical Science, University of Sheffield, Sheffield (UK)
| | - David Turton
- Department of Biomedical Science, University of Sheffield, Sheffield (UK)
| | - Harry Adams
- Department of Chemistry, University of Sheffield, Sheffield, S3 9HJ (UK), Fax: (+44) 114‐22‐29436
| | - Thomas M. Roseveare
- Department of Chemistry, University of Sheffield, Sheffield, S3 9HJ (UK), Fax: (+44) 114‐22‐29436
| | - Carl Smythe
- Department of Biomedical Science, University of Sheffield, Sheffield (UK)
| | - Xiaodi Su
- Institute of Material Research and Engineering, A*STAR (Agency for Science, Technology and Research, Singapore)
| | - Jim A. Thomas
- Department of Chemistry, University of Sheffield, Sheffield, S3 9HJ (UK), Fax: (+44) 114‐22‐29436
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33
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Yao H, Zhang L, Peng Y, Carroll PJ, Gong L, Meggers E. Novel metal-coordinated 1,10-phenanthroline ligands functionalized with a lactam or imide. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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34
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Mukherjee T, Mukherjee M, Sen B, Banerjee S, Hundal G, Chattopadhyay P. Synthesis, characterization, interactions with DNA and bovine serum albumin (BSA), and antibacterial activity of cyclometalated iridium(III) complexes containing dithiocarbamate derivatives. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.945924] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | | | - Buddhadeb Sen
- Department of Chemistry, Burdwan University, Burdwan, India
| | - Snehasis Banerjee
- Department of Chemistry, Government College of Engineering and Leather Technology, Kolkata, India
| | - Geeta Hundal
- Department of Chemistry, Guru Nanak Dev University, Amritsar, India
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35
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Adamson K, Dolan C, Moran N, Forster RJ, Keyes TE. RGD Labeled Ru(II) Polypyridyl Conjugates for Platelet Integrin αIIbβ3 Recognition and as Reporters of Integrin Conformation. Bioconjug Chem 2014; 25:928-44. [DOI: 10.1021/bc5000737] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kellie Adamson
- School
of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Ciaran Dolan
- School
of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Niamh Moran
- The
Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Robert J. Forster
- School
of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Tia E. Keyes
- School
of Chemical Sciences, Dublin City University, Dublin 9, Ireland
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36
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Moriarty RD, Martin A, Adamson K, O'Reilly E, Mollard P, Forster RJ, Keyes TE. The application of water soluble, mega-Stokes-shifted BODIPY fluorophores to cell and tissue imaging. J Microsc 2014; 253:204-18. [PMID: 24467513 DOI: 10.1111/jmi.12111] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 12/20/2013] [Indexed: 01/30/2023]
Abstract
BODIPY (4,4-difluoro-4-bora-3a,4a-diaza-s-indacene) fluorophores are widely used in bioimaging to label proteins, lipids and nucleotides, but in spite of their attractive optical properties they tend to be prone to self-quenching because of their notably small Stokes shift. Herein, we compare two BODIPY compounds from a recently developed family of naphthyridine substituted BODIPY derivatives, one a visible emitting derivative (BODIPY-VIS) and one a near-infrared emitting fluorophore with a Stokes shift of approximately 165 nm as contrast reagents for live mammalian cells and murine brain tissue. The compounds were rendered water soluble by their conjugation to polyethylene glycol (PEG). Both PEGylated compounds exhibited good cell uptake compared with their parent compounds and confocal fluorescence microscopy revealed all dyes explored to be nuclear excluding, localizing predominantly within the lipophilic organelles; the endoplasmic reticulum and mitochondria. Cytotoxicity studies revealed that these BODIPY derivatives are modestly cytotoxic at concentrations exceeding 10 μM where they induce apoptosis and necrosis. Although the quantum yield of emission of the visible emitting fluorophore was over an order of magnitude greater than the Mega-Stokes shifted probe, the latter showed considerably reduced tendency to self quench and less interference from autofluorescence. The near-infrared probe also showed good penetrability and staining in live tissue samples. In the latter case similar tendency to exclude the nucleus and to localize in the mitochondria and endoplasmic reticulum was observed as in live cells. This to our knowledge is the first demonstration of such a Mega-Stokes BODIPY probe applied to cell and tissue imaging.
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Affiliation(s)
- R D Moriarty
- National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland
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Novohradsky V, Liu Z, Vojtiskova M, Sadler PJ, Brabec V, Kasparkova J. Mechanism of cellular accumulation of an iridium(III) pentamethylcyclopentadienyl anticancer complex containing a C,N-chelating ligand. Metallomics 2014; 6:682-90. [PMID: 24448555 DOI: 10.1039/c3mt00341h] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of replacement of the N,N-chelating ligand 1,10-phenanthroline (phen) in the Ir(III) pentamethylcyclopentadienyl (Cp*) complex [(η(5)-Cp*)(Ir)(phen)Cl](+) (2) with the C,N-chelating ligand 7,8-benzoquinoline (bq) to give [(η(5)-Cp*)(Ir)(bq)Cl] (1) on the cytotoxicity of these Cp*Ir(III) complexes toward cancer cell lines was investigated. Complex 2 is inactive, similar to other Cp*Ir(III) complexes containing the N,N-chelating ligands. In contrast, a single atom change (C(-) for N) in the chelating N,N ligand resulted in potency in human ovarian carcinoma cisplatin-sensitive A2780 cells, and, strikingly, 1 is active in the cisplatin-resistant human breast cancer MCF-7 and A2780/cisR cells. Replacement of the N,N-chelating ligand with the C,N-chelating ligand gives rise to increased hydrophobicity, leading to higher cellular accumulation, higher DNA-bound iridium in cells and higher cytotoxicity. The pathways involved in cellular accumulation of 1 have been further explored and compared with conventional cisplatin. The results show that both energy-independent passive diffusion and energy-dependent transport play a role in accumulation of 1. Further results were consistent with involvement of p-glycoprotein, multidrug resistance-associated protein 1 and glutathione metabolism in the efflux of 1. In contrast, the internalization of 1 mediated by the endocytotic uptake pathway(s) seems less likely. Understanding the factors which contribute to the mechanism of cellular accumulation of this Ir(III) complex can now lead to the design of structurally similar metal complexes for antitumor chemotherapy.
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Affiliation(s)
- Vojtech Novohradsky
- Department of Biophysics, Faculty of Science, Palacky University, 17. listopadu 12, CZ-77146 Olomouc, Czech Republic
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Martin A, Moriarty RD, Long C, Forster RJ, Keyes TE. Naphthyridyl-Substituted 4,4-Difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) Luminophores: Photophysics and Application as Molecular Imaging Probes in Live Cells. ASIAN J ORG CHEM 2013. [DOI: 10.1002/ajoc.201300137] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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