201
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Reversible Covalent and Supramolecular Functionalization of Water-Soluble Gold(I) Complexes. Chemistry 2017; 23:6048-6055. [DOI: 10.1002/chem.201700588] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Indexed: 11/07/2022]
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202
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Affiliation(s)
- Pingyu Zhang
- Department of Chemistry; University of Warwick; Gibbet Hill Road CV4 7AL Coventry UK
| | - Peter J. Sadler
- Department of Chemistry; University of Warwick; Gibbet Hill Road CV4 7AL Coventry UK
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203
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Estrada-Montaño AS, Ryabov AD, Gries A, Gaiddon C, Le Lagadec R. Iron(III) Pincer Complexes as a Strategy for Anticancer Studies. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601350] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Aldo S. Estrada-Montaño
- Instituto de Química, UNAM, Circuito Exterior s/n; Ciudad Universitaria; 04510 Ciudad de México México
| | - Alexander D. Ryabov
- Department of Chemistry; Carnegie Mellon University; 4400 Fifth Avenue 15213 Pittsburgh PA USA
| | - Alexandre Gries
- Oncology Section, FMTS; Strasbourg University; Strasbourg France
- INSERM U1113; 3 avenue Molière 67200 Strasbourg France
| | - Christian Gaiddon
- Oncology Section, FMTS; Strasbourg University; Strasbourg France
- INSERM U1113; 3 avenue Molière 67200 Strasbourg France
| | - Ronan Le Lagadec
- Instituto de Química, UNAM, Circuito Exterior s/n; Ciudad Universitaria; 04510 Ciudad de México México
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204
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Misirlić Denčić S, Poljarević J, Isakovic AM, Marković I, Sabo TJ, Grgurić-Šipka S. Antileukemic action of novel diamine Pt(II) halogenido complexes: Comparison of the representative novel Pt(II) with corresponding Pt(IV) complex. Chem Biol Drug Des 2017; 90:262-271. [PMID: 28102932 DOI: 10.1111/cbdd.12945] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 12/15/2016] [Accepted: 01/05/2017] [Indexed: 12/11/2022]
Abstract
This study presents the synthesis, characterization, and antitumor action of five new Pt(II) halogenido, chlorido, and iodido complexes with edda type of ligands. (S,S)-Ethylenediamine-N,N'-di-2-(3-cyclohexyl)propanoic acid dihydrochloride and its methyl, ethyl, and n-propyl esters were prepared according to the previously reported procedure. All investigated complexes were characterized by IR, ESI-MS (1 H, 13 C, and HMBC) NMR spectroscopy, and elemental analysis. Their cytotoxic action was investigated in four human tumor cell lines: promyelocytic (HL-60) and lymphocytic (REH) leukemia, glioma (U251), and lung carcinoma (H460). Cell viability was assessed by acid phosphatase and LDH assay, while oxidative stress and cell death parameters were analyzed by flow cytometry. The results showed that novel Pt(II) complexes exhibited antitumor action superior to precursor ligands, with iodido complexes being more efficient than corresponding chlorido complexes. Human promyelocytic cell line (HL-60) was the most sensitive to antitumor action of all investigated substances and was used for investigation of the underlying mode of antileukemic action. The investigated Pt(II) complexes showed more potent antileukemic action than corresponding Pt(IV) complex, through induction of oxidative stress and apoptosis, evidenced by caspase (8, 9, and 3) activation and phosphatidylserine externalization.
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Affiliation(s)
- Sonja Misirlić Denčić
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | | | - Andjelka M Isakovic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivanka Marković
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tibor J Sabo
- Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
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205
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New Pt-NNSO core anticancer agents: Structural optimization and investigation of their anticancer activity. J Inorg Biochem 2017; 170:34-45. [PMID: 28214754 DOI: 10.1016/j.jinorgbio.2017.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 01/16/2017] [Accepted: 02/02/2017] [Indexed: 12/21/2022]
Abstract
A series of new platinum Pt(II) compounds possessing a bidentate leaving ligand modified from oxaliplatin has been synthesized, with one of the oxygen ligating atom substituted for a sulphur atom (resulting in a Pt-NNSO coordination core structure). The general structures are R,R-diaminocyclohexane (DACH)-Pt-(methylthio)acetic acid (K4) and DACH-Pt-(thiophenylacetic acid) (K4 derivatives). Substitution of an electron donating or withdrawing group at the ortho or para position on the phenyl ring of K4 derivatives was found to affect the complexes' stability, reactivity with the biological molecules (5'-guanosine monophosphate (5'-GMP) and L-methionine (L-Met)) and anticancer activity. 1H NMR experiments demonstrated that Pt-NNSO complexes formed a mixture of mono- and diadduct with 5'-GMP in various ratios, which are different from the classical Pt drugs (forming mainly diadduct). In addition, all of the K4 derivatives with improved lipophilicity are less deactivated by L-Met in comparison to cisplatin (CDDP) and oxaliplatin. Biological assessments showed that all Pt-NNSO complexes are less toxic than CDDP in normal porcine kidney cells and are minimally affected by drug resistance. Some of the new compounds also displayed comparable anticancer activity to CDDP or better than carboplatin in a few cancer cell lines. The lower reactivity of the Pt-NNSO compounds than CDDP towards thiol molecules, presumably leading to less efflux in resistant cancer cells, and the ability to inhibit autophagy were believed to allow the new compounds to be less affected by Pt resistance.
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206
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Michlewska S, Ionov M, Shcharbin D, Maroto-Díaz M, Gomez Ramirez R, Javier de la Mata F, Bryszewska M. Ruthenium metallodendrimers with anticancer potential in an acute promyelocytic leukemia cell line (HL60). Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2016.12.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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207
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Gaiddon C, Pfeffer M. The Fate of Cycloruthenated Compounds: From C-H Activation to Innovative Anticancer Therapy. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601216] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Christian Gaiddon
- University of Strasbourg; U1113 Inserm; 3 av. Molière 67200 Strasbourg France
| | - Michel Pfeffer
- University of Strasbourg; UMR 7177 CNRS; 4, rue Blaise Pascal 67000 Strasbourg France
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208
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Zhao J, Zhi S, Yu H, Mao R, Hu J, Song W, Zhang J. Mitochondrial and nuclear DNA dual damage induced by 2-(2′-quinolyl)benzimidazole copper complexes with potential anticancer activity. RSC Adv 2017. [DOI: 10.1039/c7ra09102h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Complex 2 can induce nuclear and mitochondrial dual damage in HCT116 cells and can also induce apoptosis.
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Affiliation(s)
- Jin'an Zhao
- College of Chemical and Material Engineering
- Henan University of Urban Construction
- Pingdingshan 467036
- P. R. China
| | - Shuangcheng Zhi
- School of Life Science and Engineering
- Henan University of Urban Construction
- Pingdingshan 467036
- P. R. China
| | - Huaibin Yu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450052
- P. R. China
| | - Ruina Mao
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450052
- P. R. China
| | - Jiyong Hu
- College of Chemical and Material Engineering
- Henan University of Urban Construction
- Pingdingshan 467036
- P. R. China
| | - Wei Song
- School of Life Science and Engineering
- Henan University of Urban Construction
- Pingdingshan 467036
- P. R. China
| | - Junshuai Zhang
- College of Chemical and Material Engineering
- Henan University of Urban Construction
- Pingdingshan 467036
- P. R. China
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209
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Biswas N, Khanra S, Sarkar A, Bhattacharjee S, Prasad Mandal D, Chaudhuri A, Chakraborty S, Roy Choudhury C. One new azido bridged dinuclear copper(ii) thiosemicarbazide complex: synthesis, DNA/protein binding, molecular docking study and cytotoxicity activity. NEW J CHEM 2017. [DOI: 10.1039/c7nj01998j] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biological potential of a copper(ii) complex found to exhibit in vitro antiproliferative activity towards two cell lines, AGS and A549 cancer cells.
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Affiliation(s)
- Niladri Biswas
- Department of Chemistry
- West Bengal State University
- Barasat
- India
| | - Sumit Khanra
- Department of Chemistry
- Indian Institute of Science Education and Research, Kolkata
- Mohanpur – 741 246
- India
| | - Arnab Sarkar
- Department of Zoology
- West Bengal State University
- Barasat
- India
| | | | | | - Ankur Chaudhuri
- Department of Microbiology
- West Bengal State University
- Barasat
- India
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210
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Deka B, Sarkar T, Banerjee S, Kumar A, Mukherjee S, Deka S, Saikia KK, Hussain A. Novel mitochondria targeted copper(ii) complexes of ferrocenyl terpyridine and anticancer active 8-hydroxyquinolines showing remarkable cytotoxicity, DNA and protein binding affinity. Dalton Trans 2017; 46:396-409. [DOI: 10.1039/c6dt03660k] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Mixed-ligand ferrocenyl copper(ii) complexes target the mitochondria of cancer cells showing remarkable cytotoxicity against HeLa and MCF-7 cancer cells while being much less toxic to MCF-10A normal cells.
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Affiliation(s)
- Banashree Deka
- Department of Chemistry
- Handique Girls’ College
- Guwahati 781001
- India
| | - Tukki Sarkar
- Department of Chemistry
- Handique Girls’ College
- Guwahati 781001
- India
| | - Samya Banerjee
- Department of Chemistry
- Johns Hopkins University
- Baltimore
- USA
| | - Arun Kumar
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560 012
- India
| | - Sanjoy Mukherjee
- School of Chemical Engineering
- Purdue University
- West Lafayette
- USA
| | - Sasanka Deka
- Department of Chemistry
- University of Delhi
- New Delhi 110007
- India
| | - Kandarpa K. Saikia
- Department of Bioengineering and Technology
- GUIST
- Gauhati University
- Guwahati 781014
- India
| | - Akhtar Hussain
- Department of Chemistry
- Handique Girls’ College
- Guwahati 781001
- India
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211
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A survey of the mechanisms of action of anticancer transition metal complexes. Future Med Chem 2016; 8:2263-2286. [DOI: 10.4155/fmc-2016-0153] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Metal complexes have been the subject of numerous investigations in oncology but, despite the plethora of newly synthesized compounds, their precise mechanisms of action remain generally unknown or, for the best, incompletely determined. The continuous development of efficient and sensitive techniques in analytical chemistry and molecular biology gives scientists new tools to gather information on how metal complexes can be effective toward cancer. This review focuses on recent findings about the anticancer mechanism of action of metal complexes and how the ligands can be used to tune their pharmacological and physicochemical properties.
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212
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Yang M, Bierbach U. Metal-Containing Pharmacophores in Molecularly Targeted Anticancer Therapies and Diagnostics. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601149] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Mu Yang
- Department of Chemistry; Wake Forest University; 27109 Winston-Salem North Carolina USA
| | - Ulrich Bierbach
- Department of Chemistry; Wake Forest University; 27109 Winston-Salem North Carolina USA
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213
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Sun YG, Sun YN, You LX, Liu YN, Ding F, Ren BY, Xiong G, Dragutan V, Dragutan I. Novel mononuclear Pt2+ and Pd2+ complexes containing (2,3-f)pyrazino(1,10)phenanthroline-2,3-dicarboxylic acid as a multi-donor ligand. Synthesis, structure, interaction with DNA, in vitro cytotoxicity, and apoptosis. J Inorg Biochem 2016; 164:129-140. [DOI: 10.1016/j.jinorgbio.2016.09.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 09/02/2016] [Accepted: 09/13/2016] [Indexed: 12/13/2022]
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214
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Deo KM, Pages BJ, Ang DL, Gordon CP, Aldrich-Wright JR. Transition Metal Intercalators as Anticancer Agents-Recent Advances. Int J Mol Sci 2016; 17:ijms17111818. [PMID: 27809241 PMCID: PMC5133819 DOI: 10.3390/ijms17111818] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 10/11/2016] [Accepted: 10/23/2016] [Indexed: 12/20/2022] Open
Abstract
The diverse anticancer utility of cisplatin has stimulated significant interest in the development of additional platinum-based therapies, resulting in several analogues receiving clinical approval worldwide. However, due to structural and mechanistic similarities, the effectiveness of platinum-based therapies is countered by severe side-effects, narrow spectrum of activity and the development of resistance. Nonetheless, metal complexes offer unique characteristics and exceptional versatility, with the ability to alter their pharmacology through facile modifications of geometry and coordination number. This has prompted the search for metal-based complexes with distinctly different structural motifs and non-covalent modes of binding with a primary aim of circumventing current clinical limitations. This review discusses recent advances in platinum and other transition metal-based complexes with mechanisms of action involving intercalation. This mode of DNA binding is distinct from cisplatin and its derivatives. The metals focused on in this review include Pt, Ru and Cu along with examples of Au, Ni, Zn and Fe complexes; these complexes are capable of DNA intercalation and are highly biologically active.
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Affiliation(s)
- Krishant M Deo
- Nanoscale Organisation and Dynamics Group, Western Sydney University, Campbelltown, NSW 2560, Australia.
- School of Science and Health, Western Sydney University, Campbelltown, NSW 2560, Australia.
| | - Benjamin J Pages
- Nanoscale Organisation and Dynamics Group, Western Sydney University, Campbelltown, NSW 2560, Australia.
- School of Science and Health, Western Sydney University, Campbelltown, NSW 2560, Australia.
| | - Dale L Ang
- Nanoscale Organisation and Dynamics Group, Western Sydney University, Campbelltown, NSW 2560, Australia.
- School of Science and Health, Western Sydney University, Campbelltown, NSW 2560, Australia.
| | - Christopher P Gordon
- School of Science and Health, Western Sydney University, Campbelltown, NSW 2560, Australia.
| | - Janice R Aldrich-Wright
- Nanoscale Organisation and Dynamics Group, Western Sydney University, Campbelltown, NSW 2560, Australia.
- School of Science and Health, Western Sydney University, Campbelltown, NSW 2560, Australia.
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215
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Abstract
Corroles are exceptionally promising platforms for the development of agents for simultaneous cancer-targeting imaging and therapy. Depending on the element chelated by the corrole, these theranostic agents may be tuned primarily for diagnostic or therapeutic function. Versatile synthetic methodologies allow for the preparation of amphipolar derivatives, which form stable noncovalent conjugates with targeting biomolecules. These conjugates can be engineered for imaging and targeting as well as therapeutic function within one theranostic assembly. In this review, we begin with a brief outline of corrole chemistry that has been uniquely useful in designing corrole-based anticancer agents. Then we turn attention to the early literature regarding corrole anticancer activity, which commenced one year after the first scalable synthesis was reported (1999-2000). In 2001, a major advance was made with the introduction of negatively charged corroles, as these molecules, being amphipolar, form stable conjugates with many proteins. More recently, both cellular uptake and intracellular trafficking of metallocorroles have been documented in experimental investigations employing advanced optical spectroscopic as well as magnetic resonance imaging techniques. Key results from work on both cellular and animal models are reviewed, with emphasis on those that have shed new light on the mechanisms associated with anticancer activity. In closing, we predict a very bright future for corrole anticancer research, as it is experiencing exponential growth, taking full advantage of recently developed imaging and therapeutic modalities.
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Affiliation(s)
- Ruijie D Teo
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Jae Youn Hwang
- Department of Information and Communication Engineering, Daegu Gyeongbuk Institute of Science & Technology , Daegu, Republic of Korea
| | - John Termini
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope , 1500 East Duarte Road, Duarte, California 91010, United States
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology , Haifa 32000, Israel
| | - Harry B Gray
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
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216
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Banerjee S, Dixit A, Karande AA, Chakravarty AR. Endoplasmic reticulum targeting tumour selective photocytotoxic oxovanadium(IV) complexes having vitamin-B6 and acridinyl moieties. Dalton Trans 2016; 45:783-96. [PMID: 26645854 DOI: 10.1039/c5dt03412d] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Oxovanadium(iv) complexes of vitamin-B6 Schiff base, viz., [VO(HL(1)/L(2)/L(3))(B)]Cl (), where B is 2,2'-bipyridine (bpy in and ), 11-(9-acridinyl)dipyrido[3,2-a:2',3'-c]phenazine (acdppz in and ), H2L(1)·HCl is 3-hydroxy-5-(hydroxymethyl)-4-(((2-hydroxyphenyl)imino)methyl)-2-methylpyridin-1-ium chloride (in and ), HL(2) is 2-(((2-(1H-imidazol-4-yl)ethyl)imino)methyl)phenol (in ) and HL(3) is 4-(((2-(1H-imidazol-4-yl)ethyl)imino)methyl)-5-(hydroxymethyl)-2-methylpyridin-3-ol (in ) were synthesized, characterized and their cellular uptake, photo-activated cytotoxicity and intracellular localization were studied. Complexes , as the perchlorate salt of , and , as the hexafluorophosphate salt of , were structurally characterized. Vitamin-B6 transporting membrane carrier (VTC) mediated entry into tumour cells in preference to the normal ones seems to be responsible for the higher cellular uptake of the complexes into HeLa and MCF-7 cells over MCF-10A cells. Complexes and having acdppz as the photosensitizer exhibit remarkable photocytotoxicity in these cancer cells giving IC50 of <0.9 μM. The complexes remain non-toxic in the dark. The complexes show photo-induced apoptotic cell death via singlet oxygen ((1)O2) generation. Fluorescence microscopy reveals specific localization of complex to endoplasmic reticulum (ER) and generation of (1)O2 possibly leads to apoptotic cell death by triggering ER stress response (ERSR).
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Affiliation(s)
- Samya Banerjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India.
| | - Akanksha Dixit
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India.
| | - Anjali A Karande
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India.
| | - Akhil R Chakravarty
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India.
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217
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Salvadó I, Gamba I, Montenegro J, Martínez-Costas J, Brea JM, Loza MI, Vázquez López M, Vázquez ME. Membrane-disrupting iridium(iii) oligocationic organometallopeptides. Chem Commun (Camb) 2016; 52:11008-11. [PMID: 27538788 DOI: 10.1039/c6cc05537k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of oligoarginine peptide derivatives containing cyclometallated iridium(iii) units display remarkable cytotoxicity, comparable to that of cisplatin. In vitro studies with unilamellar vesicles support a membrane-disrupting mechanism of action.
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Affiliation(s)
- Iria Salvadó
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Inorgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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218
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Zou T, Zhang JJ, Cao B, Tong KC, Lok CN, Che CM. Deubiquitinases as Anticancer Targets of Gold Complexes. Isr J Chem 2016. [DOI: 10.1002/ijch.201600044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Taotao Zou
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Chemical Biology Centre and Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong S.A.R.P.R. China
- HKU Shenzhen Institute of Research and Innovation; Shenzhen 518053 P.R. China
| | - Jing-Jing Zhang
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Chemical Biology Centre and Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong S.A.R.P.R. China
| | - Bei Cao
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Chemical Biology Centre and Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong S.A.R.P.R. China
| | - Ka-Chung Tong
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Chemical Biology Centre and Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong S.A.R.P.R. China
| | - Chun-Nam Lok
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Chemical Biology Centre and Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong S.A.R.P.R. China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Chemical Biology Centre and Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong S.A.R.P.R. China
- HKU Shenzhen Institute of Research and Innovation; Shenzhen 518053 P.R. China
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219
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Mitra K, Gautam S, Kondaiah P, Chakravarty AR. BODIPY-Appended 2-(2-Pyridyl)benzimidazole Platinum(II) Catecholates for Mitochondria-Targeted Photocytotoxicity. ChemMedChem 2016; 11:1956-67. [PMID: 27465792 DOI: 10.1002/cmdc.201600320] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Indexed: 12/21/2022]
Abstract
Platinum(II) complexes of the type [Pt(L)(cat)] (1 and 2), in which H2 cat is catechol and L represents two 2-(2-pyridyl)benzimidazole ligands with 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) pendants, were synthesized to achieve mitochondria-targeted photocytotoxicity. The complexes showed strong absorptions in the range λ=510-540 nm. Complex 1 exhibited intense emission at λ=525 nm in 1 % DMSO/water solution (fluorescence quantum yield of 0.06). Nanosecond transient absorption spectral features indicated an enhanced population of the triplet excited state in di-iodinated complex 2. The generation of singlet oxygen by complex 2 upon exposure to visible light, as evidenced from experiments with 1,3-diphenylisobenzofuran, is suitable for photodynamic therapy because of the remarkable photosensitizing ability. The complexes resulted in excellent photocytotoxicity in HaCaT cells (half maximal inhibitory concentration IC50 ≈3 μm, λ=400-700 nm, light dose=10 J cm(-2) ), but they remained non-toxic in the dark (IC50 >100 μm). Confocal microscopy images of 1 and Pt estimation from isolated mitochondria showed colocalization of the complexes in the mitochondria. Complex 2 displayed generation of reactive oxygen species induced by visible light, disruption of the mitochondrial membrane potential, and apoptosis.
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Affiliation(s)
- Koushambi Mitra
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Srishti Gautam
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Paturu Kondaiah
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore, 560012, Karnataka, India.
| | - Akhil R Chakravarty
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, Karnataka, India.
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220
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Zábojníková T, Cajzl R, Kljun J, Chval Z, Turel I, Burda JV. Interactions of the "piano-stool" [ruthenium(II)(η(6) -arene)(quinolone)Cl](+) complexes with water; DFT computational study. J Comput Chem 2016; 37:1766-80. [PMID: 27185047 DOI: 10.1002/jcc.24373] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 02/23/2016] [Accepted: 02/24/2016] [Indexed: 12/12/2022]
Abstract
Full optimizations of stationary points along the reaction coordinate for the hydration of several quinolone Ru(II) half-sandwich complexes were performed in water environment using the B3PW91/6-31+G(d)/PCM/UAKS method. The role of diffuse functions (especially on oxygen) was found crucial for correct geometries along the reaction coordinate. Single-point (SP) calculations were performed at the B3LYP/6-311++G(2df,2pd)/DPCM/saled-UAKS level. In the first part, two possible reaction mechanisms-associative and dissociative were compared. It was found that the dissociative mechanism of the hydration process is kinetically slightly preferred. Another important conclusion concerns the reaction channels. It was found that substitution of chloride ligand (abbreviated in the text as dechlorination reaction) represents energetically and kinetically the most feasible pathway. In the second part the same hydration reaction was explored for reactivity comparison of the Ru(II)-complexes with several derivatives of nalidixic acid: cinoxacin, ofloxacin, and (thio)nalidixic acid. The hydration process is about four orders of magnitude faster in a basic solution compared to neutral/acidic environment with cinoxacin and nalidixic acid as the most reactive complexes in the former and latter environments, respectively. The explored hydration reaction is in all cases endergonic; nevertheless the endergonicity is substantially lower (by ∼6 kcal/mol) in basic environment. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Tereza Zábojníková
- Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, 121 16, Czech Republic
| | - Radim Cajzl
- Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, 121 16, Czech Republic
| | - Jakob Kljun
- Faculty of Chemistry and Chemical Technologyn University of Ljubljana, Večna pot 113, Ljubljana, 1000, Slovenia
| | - Zdeněk Chval
- Department of Laboratory Methods and Information Systems, Faculty of Health and Social Studies, University of South Bohemia, J. Boreckého 27, České Budějovice, 370 11, Czech Republic
| | - Iztok Turel
- Faculty of Chemistry and Chemical Technologyn University of Ljubljana, Večna pot 113, Ljubljana, 1000, Slovenia
| | - Jaroslav V Burda
- Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, 121 16, Czech Republic
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221
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Impert O, Katafias A, Wrzeszcz G, Muzioł T, Hrynkiewicz K, Olejnik N, Chrzanowska M, van Eldik R. Synthesis and detailed characterization of cis-dichloridobispicolinatoruthenate(III) as solid and in solution. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1204649] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Olga Impert
- Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
| | - Anna Katafias
- Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
| | | | - Tadeusz Muzioł
- Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
| | - Katarzyna Hrynkiewicz
- Faculty of Biology and Environment Protection, Nicolaus Copernicus University, Toruń, Poland
| | - Natalia Olejnik
- Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
| | | | - Rudi van Eldik
- Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
- Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Erlangen, Germany
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222
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Insights into the cytotoxic activity of the phosphane copper(I) complex [Cu(thp) 4][PF 6]. J Inorg Biochem 2016; 165:80-91. [PMID: 27449160 DOI: 10.1016/j.jinorgbio.2016.07.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 06/30/2016] [Accepted: 07/07/2016] [Indexed: 11/24/2022]
Abstract
The phosphane Cu(I) complex [Cu(thp)4][PF6], 1 (thp=tris(hydroxymethyl)phosphane) shows notable in vitro antitumour activity against a wide range of solid tumours. Uptake experiments performed in 1-treated colon cancer cells by atomic absorption spectrometry, reveal that the antiproliferative activity is consistent with the intracellular copper content. The solution chemistry of this agent, investigated by means of X-ray Absorption Spectroscopy and spectrophotometric titrations in aqueous media, indicates that 1 is labile giving coordinative unsaturated [Cu(thp)n]+ species (n=3 and 2) at micromolar concentrations. [Cu(thp)n]+ are reactive species that yield the mixed-ligand complex [Cu(thp)2(BCS)]- (BCS: bathocuproinedisulphonate(2-)) upon interaction with N,N-diimine. Analogously, [Cu(thp)n]+ interact with the methionine-rich peptide sequence (Ac-MMMMPMTFK-NH2; Pep1), relevant in the recruiting of physiological copper, giving [Cu(thp)(Pep1)]+ and [Cu(Pep1)]+ species. The formation of these adducts was assessed by electrospray mass spectrometry in the positive ion mode and validated by density functional theory investigations. The possibility to trans-chelate Cu(I) from pure inorganic [Cu(thp)n]+ assemblies into more physiological adducts represents a pathway that complex 1 might follow during the internalization process into cancer cells.
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223
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Thiabaud G, McCall R, He G, Arambula JF, Siddik ZH, Sessler JL. Activation of Platinum(IV) Prodrugs By Motexafin Gadolinium as a Redox Mediator. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604236] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gregory Thiabaud
- Department of Chemistry and Biochemistry; University of Texas at Austin; 105 E. 24th St. Stop A5300 Austin TX 78712-1224 USA
| | - Rebecca McCall
- Department of Chemistry; Georgia Southern University; Statesboro GA 30460 USA
| | - Guangan He
- The University of Texas M. D. Anderson Cancer Center; 1515 Holcombe Blvd., Unit Number: 1950 Houston TX 77030 USA
| | | | - Zahid H. Siddik
- The University of Texas M. D. Anderson Cancer Center; 1515 Holcombe Blvd., Unit Number: 1950 Houston TX 77030 USA
| | - Jonathan L. Sessler
- Department of Chemistry and Biochemistry; University of Texas at Austin; 105 E. 24th St. Stop A5300 Austin TX 78712-1224 USA
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224
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Thiabaud G, McCall R, He G, Arambula JF, Siddik ZH, Sessler JL. Activation of Platinum(IV) Prodrugs By Motexafin Gadolinium as a Redox Mediator. Angew Chem Int Ed Engl 2016; 55:12626-31. [PMID: 27377046 DOI: 10.1002/anie.201604236] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Indexed: 01/14/2023]
Abstract
Water-soluble platinum(IV) prodrugs, which proved kinetically stable to reduction in the presence of physiological concentration of ascorbate, were quickly reduced to their active form, oxaliplatin, when co-incubated with a macrocycle metallotexaphyrin (i.e., Motexafin Gadolinium (MGd)). The reduction of Pt(IV) to Pt(II) promoted by MGd occurs in cell culture as well, leading to an increase in the antiproliferative activity of the Pt(IV) species in question. The mediated effect is proportional to the concentration of MGd and gives rise to an enhancement when the prodrug is relatively hydrophilic. MGd is known to localize/accumulate preferentially in tumor tissues. Thus, the present "activation by reduction" approach may allow for the cancer-selective enhancement in the cytotoxicity of Pt(IV) prodrugs.
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Affiliation(s)
- Gregory Thiabaud
- Department of Chemistry and Biochemistry, University of Texas at Austin, 105 E. 24th St. Stop A5300, Austin, TX, 78712-1224, USA
| | - Rebecca McCall
- Department of Chemistry, Georgia Southern University, Statesboro, GA, 30460, USA
| | - Guangan He
- The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Blvd., Unit Number: 1950, Houston, TX, 77030, USA
| | - Jonathan F Arambula
- Department of Chemistry, Georgia Southern University, Statesboro, GA, 30460, USA
| | - Zahid H Siddik
- The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Blvd., Unit Number: 1950, Houston, TX, 77030, USA.
| | - Jonathan L Sessler
- Department of Chemistry and Biochemistry, University of Texas at Austin, 105 E. 24th St. Stop A5300, Austin, TX, 78712-1224, USA.
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225
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Ude Z, Romero-Canelón I, Twamley B, Fitzgerald Hughes D, Sadler PJ, Marmion CJ. A novel dual-functioning ruthenium(II)–arene complex of an anti-microbial ciprofloxacin derivative — Anti-proliferative and anti-microbial activity. J Inorg Biochem 2016; 160:210-7. [DOI: 10.1016/j.jinorgbio.2016.02.018] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 01/22/2016] [Accepted: 02/10/2016] [Indexed: 11/26/2022]
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226
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Terenzi A, Pirker C, Keppler BK, Berger W. Anticancer metal drugs and immunogenic cell death. J Inorg Biochem 2016; 165:71-79. [PMID: 27350082 DOI: 10.1016/j.jinorgbio.2016.06.021] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/09/2016] [Accepted: 06/15/2016] [Indexed: 01/21/2023]
Abstract
Conventional chemotherapeutics, but also innovative precision anticancer compounds, are commonly perceived to target primarily the cancer cell compartment. However, recently it was discovered that some of these compounds can also exert immunomodulatory activities which might be exploited to synergistically enhance their anticancer effects. One specific phenomenon of the interplay between chemotherapy and the anticancer immune response is the so-called "immunogenic cell death" (ICD). ICD was discovered based on a vaccination effect exerted by cancer cells dying from pretreatment with certain chemotherapeutics, termed ICD inducers, in syngeneic transplantation mouse models. Interestingly, only a minority of drugs is able to trigger ICD without a clear-cut relation to chemical structures or their primary modes-of-action. Nevertheless, generation of reactive oxygen species (ROS) and induction of endoplasmic reticulum (ER) stress are clearly linked to ICD. With regard to metal drugs, oxaliplatin but not cisplatin is considered a bona fide ICD inducer. Taken into account that several experimental metal compounds are efficient ROS and ER stress mediators, presence of potent ICD inducers within the plethora of novel metal complexes seems feasible and has occasionally been reported. In the light of recent successes in cancer immunotherapy, here we review existing literature regarding anticancer metal drugs and ICD induction. We recommend a more profound investigation of the immunogenic features of experimental anticancer metal drugs.
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Affiliation(s)
- Alessio Terenzi
- Institute of Inorganic Chemistry, University of Vienna, Waehringerstr. 42, A-1090 Vienna, Austria; Research Platform "Translational Cancer Therapy Research", University of Vienna and Medical University of Vienna, Vienna, Austria
| | - Christine Pirker
- Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Medical University Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Bernhard K Keppler
- Institute of Inorganic Chemistry, University of Vienna, Waehringerstr. 42, A-1090 Vienna, Austria; Research Platform "Translational Cancer Therapy Research", University of Vienna and Medical University of Vienna, Vienna, Austria
| | - Walter Berger
- Research Platform "Translational Cancer Therapy Research", University of Vienna and Medical University of Vienna, Vienna, Austria; Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Medical University Vienna, Borschkegasse 8a, A-1090 Vienna, Austria.
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227
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Platinum(II) carboxylato complexes containing 7-azaindoles as N-donor carrier ligands showed cytotoxicity against cancer cell lines. J Inorg Biochem 2016; 162:109-116. [PMID: 27350081 DOI: 10.1016/j.jinorgbio.2016.06.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 06/08/2016] [Accepted: 06/14/2016] [Indexed: 12/29/2022]
Abstract
The platinum(II) malonato (Mal) and decanoato (Dec) complexes of the general formulas [Pt(Mal)(naza)2] (1-3) and cis-[Pt(Dec)2(naza)2] (4-7) were prepared, characterized and tested for their in vitro cytotoxicity against cisplatin-sensitive (A2780) and cisplatin-resistant (A2780R) human ovarian carcinoma cell lines and non-cancerous human lung fibroblasts (MRC-5); naza=halogeno-derivatives of 7-azaindole. Complexes 1-7 effectively overcome the acquired resistance of ovarian carcinoma cells to cisplatin. Complexes 2 (IC50=26.6±8.9μM against A2780 and 28.9±6.7μM against A2780R), 4 (IC50=14.5±0.6μM against A2780 and 14.5±3.8μM against A2780R) and 5 (IC50=13.0±1.1μM against A2780 and 13.6±4.9μM against A2780R) indicated decreased toxicity against healthy MRC-5 cells (IC50>50.0μM for 2 and >25.0μM for 4 and 5). The representative complexes 2 and 4 showed mutually different effect on the A2780 cell cycle at IC50 concentrations after 24h exposure. Concretely, the complex 2 caused cell cycle arrest at G0/G1 phase, while 4 induced cell death by apoptosis with high population of cells in sub-G1 cell cycle phase. The hydrolysis and interactions of the selected complexes with biomolecules (glutathione (GSH) and guanosine monophosphate (GMP)) were also studied by means of 1H NMR and ESI+ mass spectra.
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228
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Fong CW. Platinum anti-cancer drugs: Free radical mechanism of Pt-DNA adduct formation and anti-neoplastic effect. Free Radic Biol Med 2016; 95:216-29. [PMID: 27012421 DOI: 10.1016/j.freeradbiomed.2016.03.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 03/10/2016] [Accepted: 03/19/2016] [Indexed: 11/29/2022]
Abstract
The literature on the anti-neoplastic effects of Pt drugs provides substantial evidence that free radical may be involved in the formation of Pt-DNA adducts and other cytotoxic effects. The conditions specific to cancerous tumours are more conducive to free radical mechanisms than the commonly accepted hydrolysis nucleophilic-electrophilic mechanism of Pt-DNA adduct formation. Molecular orbital studies of the adiabatic attachment of hydrated electrons to Pt drugs reveal that there is a significant lengthening of the Pt-X bond (where X is Cl, O in cisplatin, carboplatin and some pyrophosphate-Pt drugs but not oxaliplatin) in the anion radical species. This observation is consistent with a dissociative electron transfer (DET) mechanism for the formation of Pt-DNA adducts. A DET reaction mechanism is proposed for the reaction of Pt drugs with guanine which involves a quasi-inner sphere 2 electron transfer process involving a transient intermediate 5 co-ordinated activated anion radical species {R2Pt---Cl(G)(Cl)•}*(-) (where R is an ammine group, and G is guanine) and the complex has an elongated Pt---Cl (or Pt---O) bond. A DET mechanism is also proposed when Pt drugs are activated by reaction with free radicals such as HO•, CO3•(-), O2•(-) but do not react with DNA bases to form adducts, but form Pt-protein adducts with proteins such ezrin, FAS, DR5, TNFR1 etc. The DET mechanism may not occur with oxaliplatin.
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229
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Garai A, Pant I, Banerjee S, Banik B, Kondaiah P, Chakravarty AR. Photorelease and Cellular Delivery of Mitocurcumin from Its Cytotoxic Cobalt(III) Complex in Visible Light. Inorg Chem 2016; 55:6027-35. [DOI: 10.1021/acs.inorgchem.6b00554] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aditya Garai
- Department
of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Ila Pant
- Department
of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, India
| | - Samya Banerjee
- Department
of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Bhabatosh Banik
- Department
of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Paturu Kondaiah
- Department
of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, India
| | - Akhil R. Chakravarty
- Department
of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
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230
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Riddell IA, Johnstone TC, Park GY, Lippard SJ. Nucleotide Binding Preference of the Monofunctional Platinum Anticancer-Agent Phenanthriplatin. Chemistry 2016; 22:7574-81. [PMID: 27111128 PMCID: PMC4884344 DOI: 10.1002/chem.201600236] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Indexed: 11/10/2022]
Abstract
The monofunctional platinum anticancer agent phenanthriplatin generates covalent adducts with the purine bases guanine and adenine. Preferential nucleotide binding was investigated by using a polymerase stop assay and linear DNA amplification with a 163-base pair DNA double helix. Similarly to cisplatin, phenanthriplatin forms the majority of adducts at guanosine residues, but significant differences in both the number and position of platination sites emerge when comparing results for the two complexes. Notably, the monofunctional complex generates a greater number of polymerase-halting lesions at adenosine residues than does cisplatin. Studies with 9-methyladenine reveal that, under abiological conditions, phenanthriplatin binds to the N(1) or N(7) position of 9-methyladenine in approximately equimolar amounts. By contrast, comparable reactions with 9-methylguanine afforded only the N(7) -bound species. Both of the 9-methyladenine linkage isomers (N(1) and N(7) ) exist as two diastereomeric species, arising from hindered rotation of the aromatic ligands about their respective platinum-nitrogen bonds. Eyring analysis of rate constants extracted from variable-temperature NMR spectroscopic data revealed that the activation energies for ligand rotation in the N(1) -bound platinum complex and the N(7) -linkage isomers are comparable. Finally, a kinetic analysis indicated that phenanthriplatin reacts more rapidly, by a factor of eight, with 9-methylguanine than with 9-methyladenine, suggesting that the distribution of lesions formed on double-stranded DNA is kinetically controlled. In addition, implications for the potent anticancer activity of phenanthriplatin are discussed herein.
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Affiliation(s)
- Imogen A Riddell
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139-4307, USA
| | - Timothy C Johnstone
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139-4307, USA
| | - Ga Young Park
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139-4307, USA
| | - Stephen J Lippard
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139-4307, USA.
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231
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Özel A, Karaoğlu K, Serbest K, Gürcan N, Emirik M, Çoruh U. Spectroscopic, electrochemical, theoretical characterization and biological evaluation of a ferrocenyl-substituted unsymmetric azine ligand and its Cu(II) complex. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1178387] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Arzu Özel
- Faculty of Pharmacy, Department of Biochemistry, Karadeniz Technical University, Trabzon, Turkey
| | - Kaan Karaoğlu
- Department of Chemistry, Recep Tayyip Erdogan (RTE) University, Rize, Turkey
| | - Kerim Serbest
- Department of Chemistry, Recep Tayyip Erdogan (RTE) University, Rize, Turkey
| | - Nihan Gürcan
- Department of Medical Pharmacology, School of Medicine, Ankara University, Ankara, Turkey
| | - Mustafa Emirik
- Department of Chemistry, Recep Tayyip Erdogan (RTE) University, Rize, Turkey
| | - Ufuk Çoruh
- Department of Computer Education and Instructional Technology, Ondokuz Mayıs University, Samsun, Turkey
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232
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Du J, Kang Y, Zhao Y, Zheng W, Zhang Y, Lin Y, Wang Z, Wang Y, Luo Q, Wu K, Wang F. Synthesis, Characterization, and in Vitro Antitumor Activity of Ruthenium(II) Polypyridyl Complexes Tethering EGFR-Inhibiting 4-Anilinoquinazolines. Inorg Chem 2016; 55:4595-605. [DOI: 10.1021/acs.inorgchem.6b00309] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Jun Du
- College of Chemistry
and Materials Science, Key Laboratory of Functional Molecular Solids,
the Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Anhui Normal University, Wuhu 241000, People’s Republic of China
| | - Yan Kang
- College of Chemistry
and Materials Science, Key Laboratory of Functional Molecular Solids,
the Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Anhui Normal University, Wuhu 241000, People’s Republic of China
- Beijing National Laboratory for Molecular
Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems;
Beijing Centre for Mass Spectrometry; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Yao Zhao
- Beijing National Laboratory for Molecular
Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems;
Beijing Centre for Mass Spectrometry; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Wei Zheng
- Beijing National Laboratory for Molecular
Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems;
Beijing Centre for Mass Spectrometry; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Yang Zhang
- Beijing National Laboratory for Molecular
Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems;
Beijing Centre for Mass Spectrometry; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Yu Lin
- Beijing National Laboratory for Molecular
Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems;
Beijing Centre for Mass Spectrometry; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Zhaoying Wang
- Beijing National Laboratory for Molecular
Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems;
Beijing Centre for Mass Spectrometry; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Yuanyuan Wang
- Beijing National Laboratory for Molecular
Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems;
Beijing Centre for Mass Spectrometry; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Qun Luo
- Beijing National Laboratory for Molecular
Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems;
Beijing Centre for Mass Spectrometry; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Kui Wu
- Beijing National Laboratory for Molecular
Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems;
Beijing Centre for Mass Spectrometry; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Fuyi Wang
- Beijing National Laboratory for Molecular
Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems;
Beijing Centre for Mass Spectrometry; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
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233
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Stíbal D, Therrien B, Süss-Fink G, Nowak-Sliwinska P, Dyson PJ, Čermáková E, Řezáčová M, Tomšík P. Chlorambucil conjugates of dinuclear p-cymene ruthenium trithiolato complexes: synthesis, characterization and cytotoxicity study in vitro and in vivo. J Biol Inorg Chem 2016; 21:443-52. [PMID: 27040952 DOI: 10.1007/s00775-016-1353-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 03/24/2016] [Indexed: 11/28/2022]
Abstract
Four diruthenium trithiolato chlorambucil conjugates have been prepared via Steglich esterification from chlorambucil and the corresponding trithiolato precursors. All conjugates are highly cytotoxic towards human ovarian A2780 and A2780cisR cancer cell lines with IC50 values in the nanomolar range. The conjugates exhibit selectivity towards A2780 cells as compared to non-cancerous HEK293 cells, while being only slightly selective for RF24 and A2780cisR cells. In vivo, the conjugate [10]BF4 suppressed the growth of a solid Ehrlich tumor in immunocompetent NMRI mice but did not prolong their overall survival. The reactivity of the chlorambucil conjugates with glutathione, a potential target of the dinuclear ruthenium motive, and with the 2-deoxyguanosine 5'-monophosphate (dGMP-a model target of chlorambucil) was studied by mass spectrometry and NMR spectroscopy. The conjugates did not show catalytic activity for the oxidation of glutathione nor binding to nucleotides, indicating that glutathione oxidation and DNA alkylation are not key mechanisms of action. Four highly cytotoxic diruthenium trithiolato chlorambucil conjugates have been prepared. All conjugates exhibit selectivity towards A2780 cells as compared to HEK293 cells, while being only slightly active in RF24 and A2780cisR cells. In vivo, the best candidate suppressed the growth of a solid Ehrlich tumor in immunocompetent NMRI mice but did not prolong their overall survival.
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Affiliation(s)
- David Stíbal
- Institut de Chimie, Université de Neuchâtel, Neuchâtel, Switzerland
| | - Bruno Therrien
- Institut de Chimie, Université de Neuchâtel, Neuchâtel, Switzerland.
| | - Georg Süss-Fink
- Institut de Chimie, Université de Neuchâtel, Neuchâtel, Switzerland
| | - Patrycja Nowak-Sliwinska
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Paul J Dyson
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Eva Čermáková
- Faculty of Medicine in Hradec Králové, Computer Technology Center, Charles University in Prague, Hradec Králové, Czech Republic
| | - Martina Řezáčová
- Faculty of Medicine in Hradec Králové, Department of Medical Biochemistry, Charles University in Prague, Hradec Králové, Czech Republic
| | - Pavel Tomšík
- Faculty of Medicine in Hradec Králové, Department of Medical Biochemistry, Charles University in Prague, Hradec Králové, Czech Republic.
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234
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Sauvageot E, Lafite P, Duverger E, Marion R, Hamel M, Gaillard S, Renaud JL, Daniellou R. Iridium complexes inhibit tumor necrosis factor-α by utilizing light and mixed ligands. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.02.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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235
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Nanostructured materials functionalized with metal complexes: In search of alternatives for administering anticancer metallodrugs. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.01.001] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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236
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Sanina NA, Shmatko NY, Korchagin DV, Shilov GV, Terent’ev AA, Stupina TS, Balakina AA, Komleva NV, Ovanesyan NS, Kulikov AV, Aldoshin SM. A new member of the cationic dinitrosyl iron complexes family incorporating N-ethylthiourea is effective against human HeLa and MCF-7 tumor cell lines. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1142536] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Nataliya A. Sanina
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
| | - Natal’ya Yu. Shmatko
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
| | - Denis V. Korchagin
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
| | - Gennadii V. Shilov
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
| | - Alexey A. Terent’ev
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
| | - Tatyana S. Stupina
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
| | - Anastasiya A. Balakina
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
| | - Natal’ya V. Komleva
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
| | - Nikolay S. Ovanesyan
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
| | - Alexander V. Kulikov
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
| | - Sergey M. Aldoshin
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
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237
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Štarha P, Habtemariam A, Romero-Canelón I, Clarkson GJ, Sadler PJ. Hydrosulfide Adducts of Organo-Iridium Anticancer Complexes. Inorg Chem 2016; 55:2324-31. [DOI: 10.1021/acs.inorgchem.5b02697] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Pavel Štarha
- Regional
Centre of Advanced Technologies and Materials, Department of Inorganic
Chemistry, Faculty of Science, Palacký University, 17. listopadu
12, 77146 Olomouc, Czech Republic
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U. K
| | - Abraha Habtemariam
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U. K
| | - Isolda Romero-Canelón
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U. K
| | - Guy J. Clarkson
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U. K
| | - Peter J. Sadler
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U. K
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238
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Pascual-Álvarez A, Topala T, Estevan F, Sanz F, Alzuet-Piña G. Photoinduced and Self-Activated Nuclease Activity of Copper(II) Complexes withN-(Quinolin-8-yl)quinolin-8-sulfonamide - DNA and Bovine Serum Albumin Binding. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501469] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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239
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240
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Soler M, Feliu L, Planas M, Ribas X, Costas M. Peptide-mediated vectorization of metal complexes: conjugation strategies and biomedical applications. Dalton Trans 2016; 45:12970-82. [DOI: 10.1039/c5dt04529k] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The rich chemical and structural versatility of transition metal complexes provides numerous novel paths to be pursued in the design of molecules that exert particular chemical or physicochemical effects that could operate over specific biological targets.
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Affiliation(s)
- Marta Soler
- QBIS–CAT Research Group
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química
- Universitat de Girona
- E-17071 Girona
- Spain
| | - Lidia Feliu
- LIPPSO
- Departament de Química
- Universitat de Girona
- E-17071 Girona
- Spain
| | - Marta Planas
- LIPPSO
- Departament de Química
- Universitat de Girona
- E-17071 Girona
- Spain
| | - Xavi Ribas
- QBIS–CAT Research Group
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química
- Universitat de Girona
- E-17071 Girona
- Spain
| | - Miquel Costas
- QBIS–CAT Research Group
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química
- Universitat de Girona
- E-17071 Girona
- Spain
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241
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Kumar A, Dixit A, Banerjee S, Bhattacharyya A, Garai A, Karande AA, Chakravarty AR. Cellular imaging and mitochondria targeted photo-cytotoxicity in visible light by singlet oxygen using a BODIPY-appended oxovanadium(iv) DNA crosslinking agent. MEDCHEMCOMM 2016. [DOI: 10.1039/c6md00071a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Targeted PDT by1O2at mtDNA crosslinking site of a BODIPY-appended VO2+complex in visible light.
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Affiliation(s)
- Arun Kumar
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - Akanksha Dixit
- Department of Biochemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - Samya Banerjee
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - Arnab Bhattacharyya
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - Aditya Garai
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - Anjali A. Karande
- Department of Biochemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - Akhil R. Chakravarty
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
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242
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Raza MK, Mitra K, Shettar A, Basu U, Kondaiah P, Chakravarty AR. Photoactive platinum(ii) β-diketonates as dual action anticancer agents. Dalton Trans 2016; 45:13234-43. [DOI: 10.1039/c6dt02590k] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cyclometallated platinum(ii) β-diketonates show significant photocytotoxicity in skin-keratinocyte HaCaT cells [IC50: ∼10 μM (visible light, 400–700 nm), ≥60 μM (dark)].
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Affiliation(s)
- Md Kausar Raza
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - Koushambi Mitra
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - Abhijith Shettar
- Department of Molecular Reproduction
- Development and Genetics
- Indian Institute of Science
- Bangalore 560012
- India
| | - Uttara Basu
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - Paturu Kondaiah
- Department of Molecular Reproduction
- Development and Genetics
- Indian Institute of Science
- Bangalore 560012
- India
| | - Akhil R. Chakravarty
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
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243
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Pitchaimani J, Charan Raja MR, Sujatha S, Kar Mahapatra S, Moon D, Anthony SP, Madhu V. Arene ruthenium(ii) complexes with chalcone, aminoantipyrine and aminopyrimidine based ligands: synthesis, structure and preliminary evaluation of anti-leukemia activity. RSC Adv 2016. [DOI: 10.1039/c6ra18504e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of arene ruthenium(ii) complexes with N-monodentate (AAP) and N,O- and N,N-bidentate chelating ligands (AAPS, ADABS, AAPPA and P2P) have been synthesized and evaluated for preliminary antileukemia activity against K562 (Human chronic myeloid leukemia cell line).
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Affiliation(s)
| | - Mamilla R. Charan Raja
- Department of Biotechnology
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur-613401
- India
| | - Srinivasan Sujatha
- Department of Biotechnology
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur-613401
- India
| | - Santanu Kar Mahapatra
- Department of Biotechnology
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur-613401
- India
| | - Dohyun Moon
- Beamline Department
- Pohang Accelerator Laboratory
- Pohang
- Korea
| | | | - Vedichi Madhu
- Department of Chemistry
- Karunya University
- Coimbatore-641 114
- India
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244
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Govender P, Riedel T, Dyson PJ, Smith GS. Regulating the anticancer properties of organometallic dendrimers using pyridylferrocene entities: synthesis, cytotoxicity and DNA binding studies. Dalton Trans 2016; 45:9529-39. [DOI: 10.1039/c6dt00849f] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Eight new heterometallic ferrocenyl-derived metal–arene metallodendrimers have been prepared and evaluated for anti-tumor activity.
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Affiliation(s)
| | - Tina Riedel
- Institut des Sciences et Ingénierie Chimique
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- Lausanne
- Switzerland
| | - Paul J. Dyson
- Institut des Sciences et Ingénierie Chimique
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- Lausanne
- Switzerland
| | - Gregory S. Smith
- Department of Chemistry
- University of Cape Town
- Cape Town
- South Africa
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245
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Wani WA, Baig U, Shreaz S, Shiekh RA, Iqbal PF, Jameel E, Ahmad A, Mohd-Setapar SH, Mushtaque M, Ting Hun L. Recent advances in iron complexes as potential anticancer agents. NEW J CHEM 2016. [DOI: 10.1039/c5nj01449b] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The iron complexes discussed in this review highlight their promising future as anticancer agents.
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Affiliation(s)
- Waseem A. Wani
- Institute of Bioproduct Development
- Universiti Teknologi Malaysia
- 81310 UTM Skudai
- Malaysia
| | - Umair Baig
- Center of Excellence for Scientific Research Collaboration with MIT
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Sheikh Shreaz
- Oral Microbiology Laboratory
- Department of Bioclinical Sciences
- Faculty of Dentistry
- Health Sciences Center
- Kuwait University
| | - Rayees Ahmad Shiekh
- Department of Chemistry
- Faculty of Science
- Taibah University
- Al Madinah Al Munawarrah
- Saudi Arabia
| | | | - Ehtesham Jameel
- Department of Chemistry
- B. R. Ambedkar Bihar University
- Muzaffarpur
- India
| | - Akil Ahmad
- Center of Lipids Engineering and Applied Research
- Ibnu Sina Institute for Industrial and Scientific Research
- Universiti Teknologi Malaysia
- 81310 UTM Skudai
- Malaysia
| | - Siti Hamidah Mohd-Setapar
- Center of Lipids Engineering and Applied Research
- Ibnu Sina Institute for Industrial and Scientific Research
- Universiti Teknologi Malaysia
- 81310 UTM Skudai
- Malaysia
| | - Md. Mushtaque
- Department of Physical and Molecular Sciences (Chemistry)
- Al-Falah University
- Faridabad
- India
| | - Lee Ting Hun
- Institute of Bioproduct Development
- Universiti Teknologi Malaysia
- 81310 UTM Skudai
- Malaysia
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246
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Šebesta F, Burda JV. Reduction Process of Tetraplatin in the Presence of Deoxyguanosine Monophosphate (dGMP): A Computational DFT Study. Chemistry 2015; 22:1037-47. [PMID: 26663432 DOI: 10.1002/chem.201503555] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 10/15/2015] [Indexed: 01/01/2023]
Abstract
The reduction mechanism of [Pt(IV) (dach)Cl4 ] (dach=diaminocyclohexyl) in the presence of dGMP was studied. The first step is substitution of a chloro ligand by dGMP, followed by nucleophilic attack of a phosphate or sugar oxygen atom to the C8-position of guanine. Subsequent reduction forms the [Pt(II) (dach)Cl2 ] complex. The whole process is completed by a hydrolysis. Two different pathways for the substitution reaction were examined: a direct associative and a Basolo-Pearson autocatalytic mechanism. All the explored structures were optimized at the B3LYP-D3/6-31G(d) level and by using the COSMO solvation model with Klamt's radii. Single-point energetics was determined at the B3LYP-GD3BJ/6-311++G(2df,2pd)/PCM/scaled-UAKS level. Activation barriers were used for an estimation of the rate constants and these were compared with experimental values. It was found that the rate-determining step is the nucleophilic attack with a slightly faster performance in the 3'-dGMP branch than in the case of 5'-dGMP with activation barriers of 21.1 and 20.4 kcal mol(-1) (experimental: 23.8 and 23.2 kcal mol(-1) ). The reduction reaction is connected with an electron flow from guanine. The product of the reduction reaction is a chelate structure, which dissociates within the last reaction step, that is, a hydrolysis reaction. The whole redox process (substitution, reduction, and hydrolysis) is exergonic by 34 and 28 kcal mol(-1) for 5'-dGMP and 3'-dGMP, respectively.
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Affiliation(s)
- Filip Šebesta
- Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 121 16, Prague 2, Czech Republic
| | - Jaroslav V Burda
- Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 121 16, Prague 2, Czech Republic.
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247
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Banerjee S, Pant I, Khan I, Prasad P, Hussain A, Kondaiah P, Chakravarty AR. Remarkable enhancement in photocytotoxicity and hydrolytic stability of curcumin on binding to an oxovanadium(IV) moiety. Dalton Trans 2015; 44:4108-22. [PMID: 25623080 DOI: 10.1039/c4dt02165g] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Oxovanadium(IV) complexes of polypyridyl and curcumin-based ligands, viz. [VO(cur)(L)Cl] (1, 2) and [VO(scur)(L)Cl] (3, 4), where L is 1,10-phenanthroline (phen in 1 and 3), dipyrido[3,2-a:2',3'-c]phenazine (dppz in 2 and 4), Hcur is curcumin and Hscur is diglucosylcurcumin, were synthesized and characterized and their cellular uptake, photocytotoxicity, intracellular localization, DNA binding, and DNA photo-cleavage activity studied. Complex [VO(cur)(phen)Cl] (1) has V(IV)N2O3Cl distorted octahedral geometry as evidenced from its crystal structure. The sugar appended complexes show significantly higher uptake into the cancer cells compared to their normal analogues. The complexes are remarkably photocytotoxic in visible light (400-700 nm) giving an IC50 value of <5 μM in HeLa, HaCaT and MCF-7 cells with no significant dark toxicity. The green emission of the complexes was used for cellular imaging. Predominant cytosolic localization of the complexes 1-4 to a lesser extent into the nucleus was evidenced from confocal imaging. The complexes as strong binders of calf thymus DNA displayed photocleavage of supercoiled pUC19 DNA in red light by generating ˙OH radicals as the ROS. The cell death is via an apoptotic pathway involving the ROS. Binding to the VO(2+) moiety has resulted in stability against any hydrolytic degradation of curcumin along with an enhancement of its photocytotoxicity.
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Affiliation(s)
- Samya Banerjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India.
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248
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Gupta G, Nowak-Sliwinska P, Herrero N, Dyson PJ, Therrien B. Increasing the selectivity of biologically active tetranuclear arene ruthenium assemblies. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.02.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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249
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Romero-Canelón I, Phoenix B, Pitto-Barry A, Tran J, Soldevila-Barreda JJ, Kirby N, Green S, Sadler PJ, Barry NP. Arene ruthenium dithiolato–carborane complexes for boron neutron capture therapy (BNCT). J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.05.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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250
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Ritacco I, Russo N, Sicilia E. DFT Investigation of the Mechanism of Action of Organoiridium(III) Complexes As Anticancer Agents. Inorg Chem 2015; 54:10801-10. [PMID: 26492153 DOI: 10.1021/acs.inorgchem.5b01832] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The potential use of synthetic metal complexes able to catalyze chemical transformations in living organisms is currently attracting a great deal of attention. Recently, organometallic ruthenium and iridium complexes have revealed an unexpected ability to modulate the redox status of cancer cells. In particular, half-sandwich organoiridium(III) cyclopentadienyl complexes of general formula [(η(5)-Cp(x))Ir(III)(X(∧)Y)Z](0/+), where Cp(x) = Cp*, Cp(xph) (tetramethyl-(phenyl)cyclopentadienyl) or Cp(xbiph) (tetramethyl(biphenyl)-cyclopentadienyl), X(∧)Y = bidentate ligand with nitrogen, oxygen, and/or carbon donor atoms, and Z = Cl, H2O, or pyridine (py) have shown promising antiproliferative activity toward cancer cells, higher potency than cisplatin, and a different mechanism of action due to the increase of the oxidative stress in cells. As such, complexes can belong to the class of DNA interacting compounds and attack on DNA can represent a secondary mechanism of action. We have explored here by means of density functional calculations (M06-L) and with the support of experimental observations for both [(η(5)-Cp(xbiph))Ir-(phpy) (Cl)], 1-Cl, and [(η(5)-Cp(xbiph))Ir-(phpy) (py)], 1-py, complexes the mechanistic aspects of the hydrolysis reaction, H2O2 ROS production by assisted hydride transfer from NADH to molecular oxygen, interaction with purine nucleobases adenine and guanine as well as gluthatione, that is highly abundant in cells, alongside the reaction mechanism for the oxidation of the formed sulfur-coordinated thiolate to the corresponding sulfenato complex. The comparison between kinetic and thermodynamic parameters calculated for all the involved processes shows that, according to the hypothesis based on experimental findings, the interaction with the tripeptide glutathione causes deactivation of 1-Cl, whereas 1-py, in both its aquated and nonaquated form, can induce cell apoptosis in a dual manner: DNA damage and H2O2 ROS production to increase oxidative stress.
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Affiliation(s)
- Ida Ritacco
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria , Ponte P. Bucci, Cubo 14cI-87030, Arcavacata di Rende, Italy
| | - Nino Russo
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria , Ponte P. Bucci, Cubo 14cI-87030, Arcavacata di Rende, Italy
| | - Emilia Sicilia
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria , Ponte P. Bucci, Cubo 14cI-87030, Arcavacata di Rende, Italy
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