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Kumar P, Tomar S, Kumar K, Kumar S. Transition metal complexes as self-activating chemical nucleases: proficient DNA cleavage without any exogenous redox agents. Dalton Trans 2023; 52:6961-6977. [PMID: 37128993 DOI: 10.1039/d3dt00368j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Chemical nucleases have found potential applications in the research fields of chemistry, biotechnology and medicine. A variety of metal complexes have been explored as good to outstanding therapeutic agents for DNA cleavage activity most likely via hydrolytic, oxidative or photoinduced cleavage pathways. However, most of these DNA cleaving agents lack their utility in in vivo applications due to their dependence on exogenous oxidants or reductants to achieve successful DNA damage. In view of addressing these issues, the development of metal complexes/organic molecules serving as self-activating chemical nucleases has received growing attention from researchers. In only the last decade, this field has dramatically expanded for the usage of chemical nucleases as therapeutic agents for DNA damage. The present study provides an overview of the opportunities and challenges in the design and development of self-activating chemical nucleases as improved DNA therapeutic candidates in the absence of an external redox agent. The reports on DNA nuclease activity via self-activation, especially with copper, zinc and iron complexes, and their mechanistic investigation have been discussed in this review article.
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Affiliation(s)
- Pramod Kumar
- Department of Chemistry, Mahamana Malviya College Khekra (Baghpat), C.C.S. University Meerut, India.
| | - Sunil Tomar
- Department of Zoology, Mahamana Malviya College Khekra (Baghpat), C.C.S. University Meerut, India
| | - Krishan Kumar
- Department of Chemistry, Motilal Nehru College, South Campus University of Delhi, New Delhi, India
| | - Sushil Kumar
- Department of Chemistry, School of Engineering, University of Petroleum and Energy Studies (UPES), Dehradun-248007, Uttarakhand, India.
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2
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Magnetostructural Properties of Some Doubly-Bridged Phenoxido Copper(II) Complexes. Molecules 2023; 28:molecules28062648. [PMID: 36985621 PMCID: PMC10058975 DOI: 10.3390/molecules28062648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/10/2023] [Accepted: 03/10/2023] [Indexed: 03/17/2023] Open
Abstract
Three new tripod tetradentate phenolate-amines (H2L1, H2L4 and H2L9), together with seven more already related published ligands, were synthesized, and characterized. With these ligands, two new dinuclear doubly-bridged-phenoxido copper(II) complexes (3, 4), and six more complexes (1, 2, 5–8), a new trinuclear complex (9) with an alternative doubly-bridged-phenoxido and –methoxido, as well as the 1D polymer (10) were synthesized, and their molecular structures were characterized by spectroscopic methods and X-ray single crystal crystallography. The Cu(II) centers in these complexes exhibit distorted square-pyramidal arrangement in 1–4, mixed square pyramidal and square planar in 5, 6, and 9, and distorted octahedral (5+1) arrangements in 7 and 8. The temperature dependence magnetic susceptibility study over the temperature range 2–300 K revealed moderate–relatively strong antiferromagnetic coupling (AF) (|J| = 289–145 cm−1) in complexes 1–6, weak-moderate AF (|J| = 59 cm−1) in the trinuclear complex 9, but weak AF interactions (|J| = 3.6 & 4.6 cm−1) were obtained in 7 and 8. No correlation was found between the exchange coupling J and the geometrical structural parameters of the four-membered Cu2O2 rings.
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3
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Gentil S, Molloy JK, Carrière M, Gellon G, Philouze C, Serre D, Thomas F, Le Goff A. Substituent Effects in Carbon-Nanotube-Supported Copper Phenolato Complexes for Oxygen Reduction Reaction. Inorg Chem 2021; 60:6922-6929. [PMID: 33759509 DOI: 10.1021/acs.inorgchem.1c00157] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Unprotected mononuclear pyrene-modified (bispyridylaminomethyl)methylphenol copper complexes were designed to be immobilized at multiwalled carbon nanotube (MWCNT) electrodes and form dinuclear bis(μ-phenolato) complexes on the surface. These complexes exhibit a high oxygen reduction reaction activity of 12.7 mA cm-2 and an onset potential of 0.78 V versus reversible hydrogen electrode. The higher activity of these complexes compared to that of mononuclear complexes with bulkier groups is induced by the favorable early formation of a dinuclear catalytic species on MWCNT.
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Affiliation(s)
- Solène Gentil
- CNRS, DCM, Université Grenoble Alpes, Grenoble 38000, France.,Laboratoire de Chimie et Biologie des Métaux, CEA, CNRS, Université Grenoble Alpes, Grenoble 38000, France
| | | | - Marie Carrière
- CNRS, DCM, Université Grenoble Alpes, Grenoble 38000, France
| | - Gisèle Gellon
- CNRS, DCM, Université Grenoble Alpes, Grenoble 38000, France
| | | | - Doti Serre
- CNRS, DCM, Université Grenoble Alpes, Grenoble 38000, France
| | - Fabrice Thomas
- CNRS, DCM, Université Grenoble Alpes, Grenoble 38000, France
| | - Alan Le Goff
- CNRS, DCM, Université Grenoble Alpes, Grenoble 38000, France
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4
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Alfaifi MY, Elbehairi SEI, Hafez HS, Elshaarawy RF. Spectroscopic exploration of binding of new imidazolium-based palladium(II) saldach complexes with CT-DNA as anticancer agents against HER2/neu overexpression. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.119] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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5
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Rakshit A, Khatua K, Shanbhag V, Comba P, Datta A. Cu 2+ selective chelators relieve copper-induced oxidative stress in vivo. Chem Sci 2018; 9:7916-7930. [PMID: 30450181 PMCID: PMC6202919 DOI: 10.1039/c8sc04041a] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 09/29/2018] [Indexed: 02/06/2023] Open
Abstract
Copper ions are essential for biological function yet are severely detrimental when present in excess. At the molecular level, copper ions catalyze the production of hydroxyl radicals that can irreversibly alter essential bio-molecules. Hence, selective copper chelators that can remove excess copper ions and alleviate oxidative stress will help assuage copper-overload diseases. However, most currently available chelators are non-specific leading to multiple undesirable side-effects. The challenge is to build chelators that can bind to copper ions with high affinity but leave the levels of essential metal ions unaltered. Here we report the design and development of redox-state selective Cu ion chelators that have 108 times higher conditional stability constants toward Cu2+ compared to both Cu+ and other biologically relevant metal ions. This unique selectivity allows the specific removal of Cu2+ ions that would be available only under pathophysiological metal overload and oxidative stress conditions and provides access to effective removal of the aberrant redox-cycling Cu ion pool without affecting the essential non-redox cycling Cu+ labile pool. We have shown that the chelators provide distinct protection against copper-induced oxidative stress in vitro and in live cells via selective Cu2+ ion chelation. Notably, the chelators afford significant reduction in Cu-induced oxidative damage in Atp7a-/- Menkes disease model cells that have endogenously high levels of Cu ions. Finally, in vivo testing of our chelators in a live zebrafish larval model demonstrate their protective properties against copper-induced oxidative stress.
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Affiliation(s)
- Ananya Rakshit
- Department of Chemical Sciences , Tata Institute of Fundamental Research , 1 Homi Bhabha Road, Colaba , Mumbai-400005 , India .
| | - Kaustav Khatua
- Department of Chemical Sciences , Tata Institute of Fundamental Research , 1 Homi Bhabha Road, Colaba , Mumbai-400005 , India .
| | - Vinit Shanbhag
- Department of Biochemistry , Christopher S. Bond Life Science Center , University of Missouri , Columbia , USA
| | - Peter Comba
- Universität Heidelberg , Anorganisch-Chemisches Institut , Interdisciplinary Center for Scientific Computing , INF 270 , D-69120 Heidelberg , Germany
| | - Ankona Datta
- Department of Chemical Sciences , Tata Institute of Fundamental Research , 1 Homi Bhabha Road, Colaba , Mumbai-400005 , India .
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6
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Colomban C, Philouze C, Molton F, Leconte N, Thomas F. Copper(II) complexes of N3O ligands as models for galactose oxidase: Effect of variation of steric bulk of coordinated phenoxyl moiety on the radical stability and spectroscopy. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.09.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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7
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Molloy JK, Philouze C, Fedele L, Imbert D, Jarjayes O, Thomas F. Seven-coordinate lanthanide complexes with a tripodal redox active ligand: structural, electrochemical and spectroscopic investigations. Dalton Trans 2018; 47:10742-10751. [DOI: 10.1039/c8dt01165f] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One-electron oxidation of the lanthanide complexes affords phenoxyl radical species. Radical formation is accompanied by a quenching of the metal-based luminescence.
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Affiliation(s)
- Jennifer K. Molloy
- Département de Chimie Moléculaire
- Univ. Grenoble Alpes
- UMR-5250 CNRS UGA
- 38058 Grenoble Cedex 9
- France
| | - Christian Philouze
- Département de Chimie Moléculaire
- Univ. Grenoble Alpes
- UMR-5250 CNRS UGA
- 38058 Grenoble Cedex 9
- France
| | - Lionel Fedele
- Département de Chimie Moléculaire
- Univ. Grenoble Alpes
- UMR-5250 CNRS UGA
- 38058 Grenoble Cedex 9
- France
| | - Daniel Imbert
- Univ. Grenoble Alpes
- CNRS
- CEA
- INAC-SyMMES
- 38000 Grenoble
| | - Olivier Jarjayes
- Département de Chimie Moléculaire
- Univ. Grenoble Alpes
- UMR-5250 CNRS UGA
- 38058 Grenoble Cedex 9
- France
| | - Fabrice Thomas
- Département de Chimie Moléculaire
- Univ. Grenoble Alpes
- UMR-5250 CNRS UGA
- 38058 Grenoble Cedex 9
- France
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8
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Serre D, Erbek S, Berthet N, Ronot X, Martel-Frachet V, Thomas F. Copper(II) complexes of N 3O tripodal ligands appended with pyrene and polyamine groups: Anti-proliferative and nuclease activities. J Inorg Biochem 2017; 179:121-134. [PMID: 29222969 DOI: 10.1016/j.jinorgbio.2017.11.006] [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: 08/17/2017] [Revised: 10/28/2017] [Accepted: 11/04/2017] [Indexed: 10/18/2022]
Abstract
A series of tripodal ligands based on the 2-tert-butyl-4-R-6-phenol was synthesized, where R=aldehyde (HL1), R=putrescine-pyrene (HL2) and R=putrescine (HL3). A dinucleating ligand wherein a putrescine group connects two tripodal moieties was also prepared (H2L4). The corresponding copper complexes (1, 2, 3, and 4, respectively) were prepared and characterized. We determined the phenol's pKas in the range 2.47-3.93. The DNA binding constants were determined at 6×106, 5.5×105 and 2.7×106 for 2, 3 and 4, respectively. The complexes display a metal-centered reduction wave at Epc,red=-0.45 to -0.5V vs. saturated calomel electrode, as well as a ligand-centered oxidation wave above 0.57V at pH7. In the presence of ascorbate they promote an efficient cleavage of DNA, with for example a concentration required to cleave 50% of supercoiled DNA of 1.7μM for 2. The nuclease activity is affected by the nature of the R group: putrescine-pyrene≈bis-ligating>putrescine>aldehyde. The species responsible for strand scission is the hydroxyl radical. The cytotoxicity of the complexes was evaluated on bladder cancer cell lines sensitive or resistant to cis-platin. The IC50 of complexes 2 and 4 span over a short range (1.3-2μM) for the two cell lines. They are lower than those of the other complexes (3.1-9.7μM) and cis-platin. The most active compounds block the cell cycle at the G0/1 phase and promote apoptosis.
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Affiliation(s)
- Doti Serre
- Département de Chimie Moléculaire, Université Grenoble Alpes, UMR-5250 CNRS UGA, CS 40700, 38058 Grenoble Cedex 9, France
| | - Sule Erbek
- EPHE, PSL Research University, IAB, INSERM UGA U1209 - CNRS UMR 5309, 38700 La Tronche, France
| | - Nathalie Berthet
- Département de Chimie Moléculaire, Université Grenoble Alpes, UMR-5250 CNRS UGA, CS 40700, 38058 Grenoble Cedex 9, France
| | - Xavier Ronot
- EPHE, PSL Research University, IAB, INSERM UGA U1209 - CNRS UMR 5309, 38700 La Tronche, France
| | | | - Fabrice Thomas
- Département de Chimie Moléculaire, Université Grenoble Alpes, UMR-5250 CNRS UGA, CS 40700, 38058 Grenoble Cedex 9, France.
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9
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Pravin N, Kumaravel G, Senthilkumar R, Raman N. Water-soluble Schiff base Cu(II) and Zn(II) complexes: Synthesis, DNA targeting ability and chemotherapeutic potential of Cu(II) complex for hepatocellular carcinoma - in vitro
and in vivo
approach. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3739] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
| | - Ganesan Kumaravel
- Research Department of Chemistry; VHNSN College; Virudhunagar - 626 001 India
| | - Raju Senthilkumar
- Department of Pharmaceutical Chemistry; Swamy Vivekanandha College of Pharmacy; Elayampalayam Tiruchengodu - 637 205 India
| | - Natarajan Raman
- Research Department of Chemistry; VHNSN College; Virudhunagar - 626 001 India
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10
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Zhan G, Zhong W, Wei Z, Liu Z, Liu X. Roles of phenol groups and auxiliary ligand of copper(ii) complexes with tetradentate ligands in the aerobic oxidation of benzyl alcohol. Dalton Trans 2017. [DOI: 10.1039/c7dt01716b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Mimics structurally assembled to form the metal center of GOase. The phenol group(s) and substituent (R) and the auxiliary ligand (L) of the mimics significantly affect catalysis during the aerobic oxidation of benzyl alcohol.
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Affiliation(s)
- Guangli Zhan
- School of Chemistry
- Nanchang University
- Nanchang
- China
| | - Wei Zhong
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing
- China
| | - Zhenhong Wei
- School of Chemistry
- Nanchang University
- Nanchang
- China
| | - Zhenzhen Liu
- School of Chemistry
- Nanchang University
- Nanchang
- China
| | - Xiaoming Liu
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing
- China
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11
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Basu Baul TS, Kehie P, Höpfl H, Duthie A, Eng G, Linden A. Organotin(IV) complexes derived from proteinogenic amino acid: synthesis, structure and evaluation of larvicidal efficacy onAnopheles stephensimosquito larvae. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3547] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tushar S. Basu Baul
- Centre for Advanced Studies in Chemistry; North-Eastern Hill University, NEHU Permanent Campus; Umshing Shillong 793 022 India
| | - Pelesakuo Kehie
- Centre for Advanced Studies in Chemistry; North-Eastern Hill University, NEHU Permanent Campus; Umshing Shillong 793 022 India
| | - Herbert Höpfl
- Centro de Investigaciones Químicas; Universidad Autónoma del Estado de Morelos, Av. Universidad 1001; Cuernavaca 62209 Mexico
| | - Andrew Duthie
- School of Life & Environmental Science; Deakin University; Geelong Victoria 3217 Australia
| | - George Eng
- Division of Sciences and Mathematics; University of the District of Columbia; Washington DC 20008 USA
| | - Anthony Linden
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 CH-8057 Zurich Switzerland
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12
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Esmieu C, Orio M, Le Pape L, Lebrun C, Pécaut J, Ménage S, Torelli S. Redox-Innocent Metal-Assisted Cleavage of S–S Bond in a Disulfide-Containing Ligand. Inorg Chem 2016; 55:6208-17. [DOI: 10.1021/acs.inorgchem.6b00819] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Charlène Esmieu
- CEA-BIG-LCBM-BioCE, Univ. Grenoble Alpes, CNRS UMR 5249, 17 rue des Martyrs, 38054 Grenoble, France
| | - Maylis Orio
- Institut des Sciences Moléculaires de Marseille, Aix Marseille Université, CNRS, Centrale Marseille, ISM2 UMR 7313, 13097 Marseille, France
| | - Laurent Le Pape
- CEA-BIG-LCBM-BioCE, Univ. Grenoble Alpes, CNRS UMR 5249, 17 rue des Martyrs, 38054 Grenoble, France
| | | | | | - Stéphane Ménage
- CEA-BIG-LCBM-BioCE, Univ. Grenoble Alpes, CNRS UMR 5249, 17 rue des Martyrs, 38054 Grenoble, France
| | - Stéphane Torelli
- CEA-BIG-LCBM-BioCE, Univ. Grenoble Alpes, CNRS UMR 5249, 17 rue des Martyrs, 38054 Grenoble, France
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13
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Li A, Liu YH, Yuan LZ, Ma ZY, Zhao CL, Xie CZ, Bao WG, Xu JY. Association of structural modifications with bioactivity in three new copper(II) complexes of Schiff base ligands derived from 5-chlorosalicylaldehyde and amino acids. J Inorg Biochem 2015; 146:52-60. [DOI: 10.1016/j.jinorgbio.2015.02.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 02/20/2015] [Accepted: 02/20/2015] [Indexed: 12/13/2022]
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14
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Tyagi N, Viji M, Karunakaran SC, Varughese S, Ganesan S, Priya S, Saneesh Babu PS, Nair AS, Ramaiah D. Enhancement in intramolecular interactions and in vitro biological activity of a tripodal tetradentate system upon complexation. Dalton Trans 2015; 44:15591-601. [DOI: 10.1039/c5dt00450k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Naphthalimide appended metal complexes uniquely exhibited intramolecular interactions, affinity for DNA/proteins and apoptosis mediated anticancer activity.
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Affiliation(s)
- Nidhi Tyagi
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Mambattakkara Viji
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Suneesh C. Karunakaran
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Sunil Varughese
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Shilpa Ganesan
- Agroprocessing and Natural Products Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Sulochana Priya
- Agroprocessing and Natural Products Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | | | - Asha S. Nair
- Rajiv Gandhi Centre for Biotechnology
- Thiruvananthapuram 695014
- India
| | - Danaboyina Ramaiah
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
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15
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Elshaarawy RF, Kheiralla ZH, Rushdy AA, Janiak C. New water soluble bis-imidazolium salts with a saldach scaffold: Synthesis, characterization and in vitro cytotoxicity/bactericidal studies. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.05.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Kochem A, Carrillo A, Philouze C, van Gastel M, du Moulinet d'Hardemare A, Thomas F. Copper(II)‐Coordinated α‐Azophenols: Effect of the Metal‐Ion Geometry on Phenoxyl/Phenolate Oxidation Potential and Reactivity. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402312] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Amélie Kochem
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, BP 53, 38041 Grenoble Cedex 9, France, http://dcm.ujf‐grenoble.fr
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34‐36, 45470 Mülheim an der Ruhr, Germany, http://www.cec.mpg.de
| | - Alexandre Carrillo
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34‐36, 45470 Mülheim an der Ruhr, Germany, http://www.cec.mpg.de
| | - Christian Philouze
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34‐36, 45470 Mülheim an der Ruhr, Germany, http://www.cec.mpg.de
| | - Maurice van Gastel
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, BP 53, 38041 Grenoble Cedex 9, France, http://dcm.ujf‐grenoble.fr
| | - Amaury du Moulinet d'Hardemare
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34‐36, 45470 Mülheim an der Ruhr, Germany, http://www.cec.mpg.de
| | - Fabrice Thomas
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34‐36, 45470 Mülheim an der Ruhr, Germany, http://www.cec.mpg.de
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17
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Pait M, Kundu B, Kundu SC, Ray D. Copper(II) complexes of piperazine based ligand: Synthesis, crystal structure, protein binding and evaluation of anti-cancerous therapeutic potential. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.04.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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18
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Wende C, Lüdtke C, Kulak N. Copper Complexes of N-Donor Ligands as Artificial Nucleases. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201400032] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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19
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Barilli A, Atzeri C, Bassanetti I, Ingoglia F, Dall'Asta V, Bussolati O, Maffini M, Mucchino C, Marchiò L. Oxidative stress induced by copper and iron complexes with 8-hydroxyquinoline derivatives causes paraptotic death of HeLa cancer cells. Mol Pharm 2014; 11:1151-63. [PMID: 24592930 DOI: 10.1021/mp400592n] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Here, we report the antiproliferative/cytotoxic properties of 8-hydroxyquinoline (8-HQ) derivatives on HeLa cells in the presence of transition metal ions (Cu(2+), Fe(3+), Co(2+), Ni(2+)). Two series of ligands were tested, the arylvinylquinolinic L1-L8 and the arylethylenequinolinic L9-L16, which can all interact with metal ions by virtue of the N,O donor set of 8-HQ; however, only L9-L16 are flexible enough to bind the metal in a multidentate fashion, thus exploiting the additional donor functions. L1-L16 were tested for their cytotoxicity on HeLa cancer cells, both in the absence and in the presence of copper. Among them, the symmetric L14 exhibits the highest differential activity between the ligand alone (IC50 = 23.7 μM) and its copper complex (IC50 = 1.8 μM). This latter, besides causing a significant reduction of cell viability, is associated with a considerable accumulation of the metal inside the cells. Metal accumulation is also observed when the cells are incubated with L14 complexed with other late transition metal ions (Fe(3+), Co(2+), Ni(2+)), although the biological response of HeLa cells is different. In fact, while Ni/L14 and Co/L14 exert a cytostatic effect, both Cu/L14 and Fe/L14 trigger a caspase-independent paraptotic process, which results from the induction of a severe oxidative stress and the unfolded protein response.
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Affiliation(s)
- Amelia Barilli
- Dipartimento di Chimica, Università degli Studi di Parma , Viale delle Scienze 17/A, 43123 Parma, Italy
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Butcher RJ, Gultneh Y, Yisgedu TB. Bis[(2-methyl-benz-yl)bis-(pyridin-2-ylmethyl-κN)amine-κN]manganese(II) bis-(perchlorate). Acta Crystallogr Sect E Struct Rep Online 2014; 70:m100-1. [PMID: 24764935 PMCID: PMC3998448 DOI: 10.1107/s1600536814003055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 02/10/2014] [Indexed: 11/19/2022]
Abstract
In the title complex, [Mn(C20H21N3)2](ClO4)2, two tridentate (2-methyl-benz-yl)bis-(pyridin-2-ylmeth-yl)amine (L) ligands form the Mn(II) complex [MnL 2](ClO4)2. The Mn(II) ion lies on a twofold axis and the complex cation is significantly distorted from regular octa-hedral geometry. The packing is stabilized by weak C-H⋯O inter-actions between the cations and anions, which link them into a zigzag ribbon along [101]. The perchlorate anion is disordered and was constrained to be tetra-hedral with two orientations having occupancies of 0.768 (4) and 0.232 (4). The 2-methylbenzyl moiety is also disordered over two sets of sites, with occupancies of 0.508 (15) and 0.492 (15).
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Affiliation(s)
- Ray J. Butcher
- Department of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA
| | - Yilma Gultneh
- Department of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA
| | - T. B. Yisgedu
- Department of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA
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