1
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Bär SI, Schleser SW, Oberhuber N, Herrmann A, Schlotte L, Weber SE, Schobert R. Trans-[bis(benzimidazol-2-ylidene)dichlorido]platinum(II) complexes with peculiar modes of action and activity against cisplatin-resistant cancer cells. J Inorg Biochem 2023; 238:112028. [PMID: 36274479 DOI: 10.1016/j.jinorgbio.2022.112028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/27/2022] [Accepted: 10/11/2022] [Indexed: 11/05/2022]
Abstract
Three series of cis- and trans-[bis(benzimidazol-2-ylidene)dichlorido]platinum(II) and cis-[(benzimidazol-2-ylidene)(DMSO)dichlorido]platinum(II) complexes were synthesised and screened for cytotoxicity against six human cancer cell lines. Depending on their N-alkyl and 5-alkoxycarbonyl substituents, two-digit nanomolar to single-digit micromolar IC50 values against cancer cell lines intrinsically resistant to or ill-responding to cisplatin were reached by both cis- and trans-configured complexes. The stability of the complexes under aqueous biotest conditions was shown via 1H and 195Pt NMR monitoring to be dependent on their configuration and their N-substituents. Localisation studies employing click reactions with 1-alkyne- or cyclopropene-tagged derivatives revealed that the cis-complexes accumulated in the cell nuclei and the trans-complexes in the mitochondria. While the most active cis-complexes showed modes of action akin to those of cisplatin, the most active trans-complexes differed from cisplatin by much lower rates of cellular uptake and ROS production, and by their non-interaction with the cell cycle and the DNA of cancer cells. Thus, we identified structural key elements for the synthesis of optimised trans-configured NHC platinum(II) complexes with high activity also against cisplatin-refractory cancer cells.
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Affiliation(s)
- Sofia I Bär
- Organic Chemistry Laboratory, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany
| | - Sebastian W Schleser
- Organic Chemistry Laboratory, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany
| | - Natalie Oberhuber
- Organic Chemistry Laboratory, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany
| | - Alexander Herrmann
- Organic Chemistry Laboratory, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany
| | - Luca Schlotte
- Organic Chemistry Laboratory, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany
| | - Stefanie E Weber
- Organic Chemistry Laboratory, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany
| | - Rainer Schobert
- Organic Chemistry Laboratory, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany.
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2
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Noor A, Qayyum S, Ali Z, Muhammad N. Syntheses and Structural Characterization of Divalent Metal Complexes (Co, Ni, Pd and Zn) of Sterically Hindered Thiourea Ligand and A Theoretical Insight of their Interaction with SARS-CoV-2 Enzyme. J Mol Struct 2022; 1274:134442. [PMID: 36337589 PMCID: PMC9621400 DOI: 10.1016/j.molstruc.2022.134442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/14/2022] [Accepted: 10/27/2022] [Indexed: 11/08/2022]
Abstract
Reacting two equivalents of sterically hindered 1,3-bis(2,6-diethylphenyl)thiourea ligand (L) with CoCl2, NiBr2, PdX2 (X = Cl; Br) and ZnI2 in acetonitrile afforded the corresponding bulky thiourea ligand stabilized four coordinated monomeric [L2CoCl2] (1), [L2NiBr2] (2), [L2PdX2] (3a: X = Cl; 3b: X = Br) and [L2ZnI2] (4.2CH3CN) complexes. Compound 1, 2 and 4.2CH3CN are tetrahedral whereas Pd complexes (3a and 3b) are square planar. In solution, palladium complexes are dominated by cis-isomers. Structural characterization shows inter- and intramolecular hydrogen bonding. Hirshfeld surface and fingerprint plots indicated significant intermolecular interactions in the crystal network. Molecular docking analysis revealed relatively higher SARS-CoV-2 enzyme interacting abilities of the synthesized complexes compared to the free ligand. All compounds have been characterized by elemental analyses, NMR spectroscopy and single-crystal X-ray diffraction.
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Affiliation(s)
- Awal Noor
- Department of Basic Sciences, Preparatory Year Deanship, King Faisal University, 31982 Al-Hassa, Saudi Arabia,Corresponding Author:
| | - Sadaf Qayyum
- Department of Basic Sciences, Preparatory Year Deanship, King Faisal University, 31982 Al-Hassa, Saudi Arabia
| | - Zafar Ali
- Department of Chemistry, Abdul Wali Khan University, Mardan, KPK, Pakistan
| | - Niaz Muhammad
- Department of Chemistry, Abdul Wali Khan University, Mardan, KPK, Pakistan
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3
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Sulaiman AAA, Sobeai HMA, Aldawood E, Abogosh A, Alhazzani K, Alotaibi MR, Ahmad S, Alhoshani A, Isab AA. In vitro and In vivo Studies of Potential Anticancer Agents of Platinum(II) Complexes of Dicyclopentadiene and Dithiocarbamates. Metallomics 2022; 14:6649215. [DOI: 10.1093/mtomcs/mfac054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 06/13/2022] [Indexed: 11/14/2022]
Abstract
Abstract
Three platinum(II) complexes of dicyclopentadiene (DCP) and dithiocarbamates (DTC), namely, [Pt(η4-DCP)(Me2DTC)]PF6 (1), [Pt(η4-DCP)(Et2DTC)]PF6 (2) and [Pt(η4-DCP)(Bz2DTC)]PF6 (3) [Me2DTC = dimethyldithiocarbamate, Et2DTC = diethyldithiocarbamate, and Bz2DTC = dibenzyldithiocarbamate] were prepared and characterized by elemental analysis, IR, 1H and 13C NMR spectroscopy. The spectroscopic data indicated the coordination of both DCP and dithiocarbamate ligands to platinum(II). The solution chemisty of complex 1 revealed that the complexes are stable in both DMSO and 1:1 mixture of DMSO: H2O. In vitro cytotoxicity of the complexes relative to cisplatin was tested using MTT assay, against CHL-1 (human melanoma cancer cells), MDA-MB-231 (breast cancer cells), A549 (lung cancer cells), and B16 (murine melanoma cancer cells). The antiproliferative effect of all three prepared complexes was found to be significantly higher than cisplatin. Furthermore, flow cytometric analysis of complex 1 showed that the complex induced apoptosis, oxidative stress, mitochondrial potential depolarization and cell cycle arrest in a concentration-dependent pattern in the CHL-1 cells. Confirmation of apoptosis via gene expression analysis demonstrated down-regulation of anti-apoptotic genes and up-regulation of pro-apoptotic genes in the CHL-1 cells. Wound healing assays also lent support to the strong cytotoxicity of the complexes. In vivo studies showed a significant reduction of tumor volume at the end of the experiment. In addition, the drug did not change the weight of the mice. In conclusion, complex 1 inhibited cell proliferation in vitro and reduced tumor growth in vivo.
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Affiliation(s)
- Adam A A Sulaiman
- Core Research Facilities (CRF), King Fahd University of Petroleum and Minerals , Dhahran, Saudi Arabia
- Department of Chemistry, King Fahd University of Petroleum and Minerals , Dhahran, Saudi Arabia
| | - Homood M As Sobeai
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University , Riyadh, Saudi Arabia
| | - Eman Aldawood
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University , Riyadh, Saudi Arabia
| | - Ahmad Abogosh
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University , Riyadh, Saudi Arabia
| | - Khalid Alhazzani
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University , Riyadh, Saudi Arabia
| | - Moureq R Alotaibi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University , Riyadh, Saudi Arabia
| | - Saeed Ahmad
- Department of Chemistry, College of Sciences and Humanities, Prince Sattam bin Abdulaziz University , Al-Kharj, Saudi Arabia
| | - Ali Alhoshani
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University , Riyadh, Saudi Arabia
| | - Anvarhusein A Isab
- Department of Chemistry, King Fahd University of Petroleum and Minerals , Dhahran, Saudi Arabia
- Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum and Minerals , Dhahran 31261, Saudi Arabia
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4
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Das M, Mukherjee S, Islam MM, Choudhuri I, Bhattacharyya N, Samanta BC, Dutta B, Maity T. Response of Ancillary Azide Ligand in Designing a 1D Copper(II) Polymeric Complex along with the Introduction of High DNA- and HAS-Binding Efficacy, Leading to Impressive Anticancer Activity: A Compact Experimental and Theoretical Approach. ACS OMEGA 2022; 7:23276-23288. [PMID: 35847281 PMCID: PMC9281303 DOI: 10.1021/acsomega.2c01403] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A new versatile azide-bridged polymeric Cu(II) complex, namely, [Cu(L)(μ1,3-N3)]∞ (1), was synthesized utilizing an N,N,O-donor piperidine-based Schiff base ligand (E)-4-bromo-2-((2-(-1-yl)imino)methyl)phenol (HL), obtained via the condensation reaction of 1-(2-aminoethyl) piperidine and 5-bromo salicylaldehyde. The single-crystal X-ray diffraction analysis reveals that complex 1 consists of an end-to-end azido-bridged polymeric network, which is further rationalized with the help of a density functional theory (DFT) study. After routine characterization with a range of physicochemical studies, complex 1 is exploited to evaluate its biomedical potential. Initially, theoretical inspection with the help of a molecular docking study indicated the ability of complex 1 to effectively bind with macromolecules such as DNA and the human serum albumin (HSA) protein. The theoretical aspect was further verified by adopting several spectroscopic techniques. The electronic absorption spectroscopic analysis indicates a remarkable binding efficiency of Complex 1 with both DNA and HSA. The notable fluorescence intensity reduction of the ethidium bromide (EtBr)-DNA adduct, 4',6-diamidino-2-phenylindole (DAPI)-DNA adduct, and HSA after the gradual addition of complex 1 authenticates its promising binding potential with the macromolecules. The retention of the canonical B form of DNA and α form of HSA during the association of complex 1 was confirmed by implementing a circular dichroism spectral study. The association ability of complex 1 with macromolecules further inspired us to inspect its impact on different cell lines such as HeLa (cervical cancer cell), PA1 (ovarian cancer cell), and HEK (normal cell). The dose-dependent and time-dependent in vitro 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay suggests an effective antiproliferative property of complex 1 with low toxicity toward the normal cell line. Finally, the anticancer activity of complex 1 toward carcinoma cell lines was analyzed by nuclear and cellular staining techniques, unveiling the cell death mechanism.
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Affiliation(s)
- Manik Das
- Department
of Chemistry, Prabhat Kumar College, Contai, Purba Medinipur, Contai 721404, India
| | - Somali Mukherjee
- School
of Chemical Sciences, Indian Association
for the Cultivation of Science, Jadavpur, Kolkata 700032, West Bengal, India
| | - Md. Maidul Islam
- Department
of Chemistry, Aliah University, Kolkata 700064, India
| | - Indranil Choudhuri
- Department
of Chemistry, Panskura Banamali College, Panskura 721152, India
| | | | - Bidhan Chandra Samanta
- Department
of Chemistry, Mugberia Gangadhar Mahavidyalaya, Purba Medinipur 721425, India
| | - Basudeb Dutta
- Department
of Chemical Science, IISER Kolkata, Mohanpur, Kolkata 741246, India
| | - Tithi Maity
- Department
of Chemistry, Prabhat Kumar College, Contai, Purba Medinipur, Contai 721404, India
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5
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Mononuclear Tricoordinate Copper(I) and Silver(I) Halide Complexes of a Sterically Bulky Thiourea Ligand and a Computational Insight of Their Interaction with Human Insulin. Molecules 2022; 27:molecules27134231. [PMID: 35807475 PMCID: PMC9268019 DOI: 10.3390/molecules27134231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/26/2022] [Accepted: 06/28/2022] [Indexed: 12/04/2022] Open
Abstract
Reaction of two equivalents of the bulky 1,3-bis(2,6-diethylphenyl)thiourea ligand (L) with MX (being M = Cu+, Ag+; and X = Cl−, Br−, I−) in acetonitrile afforded neutral complexes of the type [MXL2] [CuClL2].2CH3CN (1a); [CuBrL2].2CH3CN (1b); [CuIL2] (1c): [AgClL2] (2a); [AgBrL2] (2b) and [AgIL2] (2c). The two aromatic groups in free ligand were found to be trans with respect to the thiourea unit, which was a reason to link the ligand molecules via intermolecular hydrogen bonding. Intramolecular hydrogen bonding was observed in all metal complexes. The copper complexes 1a and 1b are acetonitrile solvated and show not only intra- but also intermolecular hydrogen bonding between the coordinated thiourea and the solvated acetonitrile molecules. Silver complexes reported here are the first examples of structurally characterized tricoordinated thiourea-stabilized monomeric silver(I) halides. Molecular docking studies were carried out to analyze the binding modes of the metal complexes inside the active site of the human insulin (HI) protein. Analysis of the docked conformations revealed that the electrostatic and aromatic interactions of the protein N-terminal residues (i.e., Phe and His) may assist in anchoring and stabilizing the metal complexes inside the active site. According to the results of docking studies, the silver complexes exhibited the strongest inhibitory capability against the HI protein, which possesses a deactivating group, directly bonded to silver. All compounds were fully characterized by elemental analysis, NMR spectroscopy, and molecular structures of the ligand, and five out of six metal complexes were also confirmed by single-crystal X-ray diffraction.
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6
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Rivera C, Bacilio-Beltrán HA, Puebla-Pérez AM, Rangel-Salas II, Alvarado–Rodríguez JG, Flores-Moreno R, Velázquez- Juárez G, Peregrina-Lucano AA, Becerra-Martinez E, Valdez-Ruvalcaba J, Rubio-Garcia JE, Cortes-Llamas SA. Cis and trans platinum(II) N-heterocyclic carbene isomers: synthesis, characterization and biological activity. NEW J CHEM 2022. [DOI: 10.1039/d2nj02508f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of cis and trans geometrical isomers of platinum(II) complexes with a symmetric N-heterocyclic carbene ligand (MeNHC) is reported. These complexes were obtained from 1,3-dimethylimidazolium-2-carboxylate, a masked NHC precursor....
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7
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Zhao S, Yang Z, Jiang G, Huang S, Bian M, Lu Y, Liu W. An overview of anticancer platinum N-heterocyclic carbene complexes. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214217] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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8
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Seah JWK, Lee JXT, Li Y, Pullarkat SA, Tan NS, Leung PH. Chelating Phosphine-N-Heterocyclic Carbene Platinum Complexes via Catalytic Asymmetric Hydrophosphination and Their Cytotoxicity Toward MKN74 and MCF7 Cancer Cell Lines. Inorg Chem 2021; 60:17276-17287. [PMID: 34709031 DOI: 10.1021/acs.inorgchem.1c02625] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of activated vinyl azoles was hydrophosphinated in the presence of a chiral palladacycle catalyst under mild conditions to give enantioenriched phosphine azoles with moderate enantioselectivities and yields. The racemic phosphine azoles were transformed into eleven novel chelating phosphine-N-heterocyclic carbene (NHC) platinum complexes. The drug efficacies of nine selected phosphine-NHC platinum(II) chlorides in two cancer cell lines (MKN74 and MCF7) were evaluated, and two were found to exhibit activities comparable to that of cisplatin.
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Affiliation(s)
- Jeffery Wee Kiong Seah
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Jeannie Xue Ting Lee
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Yongxin Li
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Sumod A Pullarkat
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Nguan Soon Tan
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore.,School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore
| | - Pak-Hing Leung
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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9
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Lalinde E, Lara R, Gonzalo M, Moreno MT, Alfaro-Arnedo E, López IP, Larráyoz IM, Pichel JG. Investigation on Optical and Biological Properties of 2-(4-Dimethylaminophenyl)benzothiazole Based Cycloplatinated Complexes. Chemistry 2021; 27:15757-15772. [PMID: 34379830 PMCID: PMC9293083 DOI: 10.1002/chem.202102737] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Indexed: 11/08/2022]
Abstract
The optical and biological properties of 2-(4-dimethylaminophenyl)benzothiazole cycloplatinated complexes featuring bioactive ligands ([{Pt(Me 2 N-pbt)(C 6 F 5 )}L] [L = Me 2 N-pbtH 1 , p -dpbH (4-(diphenylphosphino)benzoic acid) 2 , o -dpbH (2-(diphenylphosphino)benzoic acid) 3) , [Pt(Me 2 N-pbt)( o -dpb)] 4 , [{Pt(Me 2 N-pbt)(C 6 F 5 )} 2 (µ-PR n P)] [PR 4 P = O(CH 2 CH 2 OC(O)C 6 H 4 PPh 2 ) 2 5 , PR 12 P = O{(CH 2 CH 2 O) 3 C(O)C 6 H 4 PPh 2 } 2 6 ] are presented. Complexes 1-6 display 1 ILCT and metal perturbed 3 ILCT dual emissions. The ratio between both bands is excitation dependent, accomplishing warm-white emissions for 2 , 5 and 6 . The phosphorescent emission is lost in aerated solutions owing to photoinduced electron transfer to 3 O 2 and formation of 1 O 2 , as confirmed in complexes 2 and 4 . They also exhibit photoinduced phosphorescence enhancement in non-degassed DMSO, due to local oxidation of DMSO by sensitized 1 O 2 , which causes a local degassing. Me 2 N-pbtH and the complexes exhibit specific accumulation in the Golgi apparatus although only 2 , 3 and 6 were active against A549 and HeLa cancer cell lines, being 6 highly selective respect to nontumoral cells. The potential photodynamic property of these complexes was demonstrated with complex 4 .
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Affiliation(s)
- Elena Lalinde
- Universidad de La Rioja, Departamento de Química, Madre de Dios, 53, 26006, Logroño, SPAIN
| | | | | | | | | | - Iciar P López
- CIBIR: Centro de Investigacion Biomedica de La Rioja, Lung Cancer Unit, SPAIN
| | - Ignacio M Larráyoz
- CIBIR: Centro de Investigacion Biomedica de La Rioja, Biomarkers and Molecular Signaling, SPAIN
| | - José G Pichel
- CIBIR: Centro de Investigacion Biomedica de La Rioja, Lung Cancer Unit, SPAIN
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10
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Martínez-Junquera M, Lalinde E, Moreno MT, Alfaro-Arnedo E, López IP, Larráyoz IM, Pichel JG. Luminescent cyclometalated platinum(ii) complexes with acyclic diaminocarbene ligands: structural, photophysical and biological properties. Dalton Trans 2021; 50:4539-4554. [PMID: 33729268 DOI: 10.1039/d1dt00480h] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Four new cyclometalated Pt(ii) complexes bearing acyclic diaminocarbene (ADC) ligands, [Pt(C^N)Cl{C(NHXyl)(NHR)}] [C^N = 2,6-difluorophenylpyridine (dfppy), phenylquinoline (pq); R = Pr 3a, 4a, CH2Ph 3b, 4b], were prepared by the nucleophilic attack on the isocyanide [Pt(C^N)Cl(CNXyl)] (C^N = dfppy 1, pq 2) by the corresponding amine RNH2 (R = Pr, CH2Ph). Complexes 3 show in their 1H NMR spectra in CDCl3 a notable concentration dependence, with a clear variation of the δH (NHXyl) signal, suggesting an assembling process implying donor-acceptor NHXylCl bonding, also supported by 1D-PGSE (Pulse Field Gradient Spin Echo) and 2D-DOSY (Diffusion Ordered Spectroscopy) NMR experiments in solution and X-ray diffraction studies. The intermolecular interactions in compounds 3a and 3b were studied by using Hirshfeld surface analysis and Non-Covalent Interaction (NCI) methods on their X-ray structures. Their photophysical properties were investigated by absorption and emission spectroscopies and also by TD-DFT calculations performed on 3a and 4b. These complexes show green (3) or orange (4) phosphorescence, attributed to a mixed 3IL/3MLCT excited state. The carbene ligand does not affect the emission maxima but it produces an increase of the quantum yields in relation to the isocyanide in the precursors. In fluid solutions, the emission is not concentration-dependent, but the complexes may show aggregation induced emission as detailed for complexes 3a and 4a. In addition, cytotoxicity studies in the human cell lines A549 (lung carcinoma) and HeLa (cervix carcinoma) showed good activity for these complexes and 3a, 3b and 4a exhibit a strong effect on DNA electrophoretic mobility. To the best of our knowledge, compounds 3 and 4 represent the first examples of cycloplatinated complexes bearing acyclic diamino carbenes with antiproliferative properties.
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Affiliation(s)
- Mónica Martínez-Junquera
- Departamento de Química-Centro de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
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11
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Synthesis, structures and anticancer potentials of five platinum(II) complexes with benzothiazole-benzopyran targeting mitochondria. Polyhedron 2021. [DOI: 10.1016/j.poly.2020.115004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Behera PK, Maity L, Kisan HK, Dutta B, Isab AA, Chandra SK, Dinda J. Gold(I) and gold(III) complexes supported by a pyrazine / pyrimidine wingtip N-heterocyclic carbene: Synthesis, structure and DFT studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Mori M, Sunatsuki Y, Suzuki T. Sterically Demanding 8-(Diphenylphosphino)quinoline Complexes of Group 10 Metal(II): Synthesis, Crystal Structures, and Properties in Solution. Inorg Chem 2020; 59:18225-18240. [PMID: 33249844 DOI: 10.1021/acs.inorgchem.0c02706] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Several series of platinum(II), palladium(II), and nickel(II) complexes bearing 8-(diphenylphosphino)quinoline (PQH) or its 2-methyl or 2-phenyl derivatives (PQMe or PQPh) were synthesized, and their crystal structures and behaviors in solution were investigated. Most of the complexes [M(PQR)2]X2 (MII = PtII, PdII, or NiII; R = H, Me or Ph; X = monoanionic ions) characterized in this study have an approximately square-planar coordination geometry with two bidentate P,N-chelating or monodentate P-donating quinolylphosphine ligands in the cis(P,P) configuration. A large steric requirement from the Me or Ph substituent introduced at the 2-position of the quinoline ring gives the resulting complexes severe distortion. The PtII and PdII complex cations maintained the square-planar coordination geometry, but the MII center was displaced from the chelating ligand plane. This bending of the chelate coordination makes the M-N(quinoline) bond weaker, as demonstrated by the longer M-N bonds. In accord with the bond weakening, the partial dissociation of the PQH or PQMe chelates by substitution with halide anions were observed using UV-vis spectroscopy and X-ray crystallography. In contrast, the PQPh complexes were stable in solution toward the addition of halide anions; the intramolecular π-π stacking interaction between the coordinating quinolyl and the 2-substituted phenyl rings protects the MII center from nucleophilic attack. In the corresponding NiII complexes, the steric congestion arising from the mutually cis-positioned PQR ligands resulted in a large tetrahedral distortion around the NiII center. However, the intramolecular π-π stacking interaction was still effective in the PQPh complex, and this interaction can explain some unusual robustness and electrochemical properties of the NiII-PQPh complex.
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Affiliation(s)
- Masatoshi Mori
- Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Yukinari Sunatsuki
- Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Takayoshi Suzuki
- Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.,Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
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14
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Lettl C, Schindele F, Testolin G, Bär A, Rehm T, Brönstrup M, Schobert R, Bilitewski U, Haas R, Fischer W. Inhibition of Type IV Secretion Activity and Growth of Helicobacter pylori by Cisplatin and Other Platinum Complexes. Front Cell Infect Microbiol 2020; 10:602958. [PMID: 33392108 PMCID: PMC7775389 DOI: 10.3389/fcimb.2020.602958] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 11/17/2020] [Indexed: 12/20/2022] Open
Abstract
Type IV secretion systems are protein secretion machineries that are frequently used by pathogenic bacteria to inject their virulence factors into target cells of their respective hosts. In the case of the human gastric pathogen Helicobacter pylori, the cytotoxin-associated gene (Cag) type IV secretion system is considered a major cause for severe disease, such as gastric cancer, and thus constitutes an attractive target for specific treatment options against H. pylori infections. Here, we have used a Cag type IV secretion reporter assay for screening a repurposing compound library for inhibitors targeting this system. We found that the antitumor agent cisplatin, a platinum coordination complex that kills target cells by formation of DNA crosslinks, is a potent inhibitor of the Cag type IV secretion system. Strikingly, we found that this inhibitory activity of cisplatin depends on a ligand exchange reaction which incorporates a solvent molecule (dimethylsulfoxide) into the complex, a modification which is known to be deleterious for DNA crosslinking, and for its anticancer activity. We extended our analysis to several analogous platinum complexes containing N-heterocyclic carbene, as well as DMSO or other ligands, and found varying inhibitory activities toward the Cag system which were not congruent with their DNA-binding properties, suggesting that protein interactions may cause the inhibitory effect. Inhibition experiments under varying conditions revealed effects on adherence and bacterial viability as well, and showed that the type IV secretion-inhibitory capacity of platinum complexes can be inactivated by sulfur-containing reagents and in complex bacterial growth media. Taken together, our results demonstrate DNA binding-independent inhibitory effects of cisplatin and other platinum complexes against different H. pylori processes including type IV secretion.
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Affiliation(s)
- Clara Lettl
- Max von Pettenkofer Institute of Hygiene and Medical Microbiology, Faculty of Medicine, LMU Munich, Munich, Germany.,German Center for Infection Research (DZIF), Munich Site, Munich, Germany
| | - Franziska Schindele
- Max von Pettenkofer Institute of Hygiene and Medical Microbiology, Faculty of Medicine, LMU Munich, Munich, Germany.,German Center for Infection Research (DZIF), Munich Site, Munich, Germany
| | - Giambattista Testolin
- Department of Chemical Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany.,German Center for Infection Research (DZIF), Hannover-Braunschweig Site, Braunschweig, Germany
| | - Alexander Bär
- Organic Chemistry Laboratory, University Bayreuth, Bayreuth, Germany
| | - Tobias Rehm
- Organic Chemistry Laboratory, University Bayreuth, Bayreuth, Germany
| | - Mark Brönstrup
- Department of Chemical Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany.,German Center for Infection Research (DZIF), Hannover-Braunschweig Site, Braunschweig, Germany
| | - Rainer Schobert
- Organic Chemistry Laboratory, University Bayreuth, Bayreuth, Germany
| | - Ursula Bilitewski
- Department of Chemical Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany.,German Center for Infection Research (DZIF), Hannover-Braunschweig Site, Braunschweig, Germany
| | - Rainer Haas
- Max von Pettenkofer Institute of Hygiene and Medical Microbiology, Faculty of Medicine, LMU Munich, Munich, Germany.,German Center for Infection Research (DZIF), Munich Site, Munich, Germany
| | - Wolfgang Fischer
- Max von Pettenkofer Institute of Hygiene and Medical Microbiology, Faculty of Medicine, LMU Munich, Munich, Germany.,German Center for Infection Research (DZIF), Munich Site, Munich, Germany
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15
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Synthesis, structures, and anticancer potentials of four platinum (II) complexes with benzopyran derivatives targeting mitochondria. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Bertrand B, Botuha C, Forté J, Dossmann H, Salmain M. A Bis-Chelating O N O ^ / N N ^ Ligand for the Synthesis of Heterobimetallic Platinum(II)/Rhenium(I) Complexes: Tools for the Optimization of a New Class of Platinum(II) Anticancer Agents. Chemistry 2020; 26:12846-12861. [PMID: 32602602 DOI: 10.1002/chem.202001752] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/23/2020] [Indexed: 01/03/2023]
Abstract
The two independent and N N ^ coordination sites of a newly synthesized bis[2-(hydroxyphenyl)-1,2,4-triazole] platform have been exploited to prepare four monometallic neutral ()PtII complexes carrying DMSO, pyridine, triphenylphosphine, or N-heterocyclic carbene as the fourth ligand. Then, the second N N ^ coordination site was used to introduce an IR-active rhenium tricarbonyl entity, affording the four corresponding heterobimetallic neutral PtII /ReI complexes, as well as a cationic PtII /ReI derivative. X-ray crystallographic studies showed that distortion of the organic platform occurred to accommodate the coordination geometry of both metal centers. No ligand exchange or transchelation occurred upon incubation of the PtII complexes in aqueous environment or in the presence of FeIII , respectively. The antiproliferative activity of the ligand and complexes was first screened on the triple-negative breast cancer cell line MDA-MB-231. Then, the IC50 values of the most active candidates were determined on a wider panel of human cancer cells (MDA-MB-231, MCF-7, and A2780), as well as on a nontumorigenic cell line (MCF-10A). Low micromolar activities were reached for the complexes carrying a DMSO ligand, making them the first examples of highly active, but hydrolytically stable, PtII complexes. Finally, the characteristic mid-IR signature of the {Re(CO)3 } fragment in the Pt/Re heterobimetallic complexes was used to quantify their uptake in breast cancer cells.
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Affiliation(s)
- Benoît Bertrand
- CNRS, Institut Parisien de Chimie Moléculaire (IPCM), Sorbonne Université, 75005, Paris, France
| | - Candice Botuha
- CNRS, Institut Parisien de Chimie Moléculaire (IPCM), Sorbonne Université, 75005, Paris, France
| | - Jérémy Forté
- CNRS, Institut Parisien de Chimie Moléculaire (IPCM), Sorbonne Université, 75005, Paris, France
| | - Héloïse Dossmann
- CNRS, Institut Parisien de Chimie Moléculaire (IPCM), Sorbonne Université, 75005, Paris, France
| | - Michèle Salmain
- CNRS, Institut Parisien de Chimie Moléculaire (IPCM), Sorbonne Université, 75005, Paris, France
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17
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Tham MJR, Babak MV, Ang WH. PlatinER: A Highly Potent Anticancer Platinum(II) Complex that Induces Endoplasmic Reticulum Stress Driven Immunogenic Cell Death. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008604] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Max Jing Rui Tham
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore 21 Lower Kent Ridge Road 119077 Singapore Singapoare
| | - Maria V. Babak
- Department of Chemistry National University of Singapore 3 Science Drive 2 117543 Singapore Singapore
- Department of Chemistry City University of Hong Kong 83 Tat Chee Avenue 999077 Hong Kong SAR P. R. China
| | - Wee Han Ang
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore 21 Lower Kent Ridge Road 119077 Singapore Singapoare
- Department of Chemistry National University of Singapore 3 Science Drive 2 117543 Singapore Singapore
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18
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Tham MJR, Babak MV, Ang WH. PlatinER: A Highly Potent Anticancer Platinum(II) Complex that Induces Endoplasmic Reticulum Stress Driven Immunogenic Cell Death. Angew Chem Int Ed Engl 2020; 59:19070-19078. [DOI: 10.1002/anie.202008604] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Max Jing Rui Tham
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore 21 Lower Kent Ridge Road 119077 Singapore Singapoare
| | - Maria V. Babak
- Department of Chemistry National University of Singapore 3 Science Drive 2 117543 Singapore Singapore
- Department of Chemistry City University of Hong Kong 83 Tat Chee Avenue 999077 Hong Kong SAR P. R. China
| | - Wee Han Ang
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore 21 Lower Kent Ridge Road 119077 Singapore Singapoare
- Department of Chemistry National University of Singapore 3 Science Drive 2 117543 Singapore Singapore
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19
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Nguyen VH, Dang TT, Nguyen HH, Huynh HV. Platinum(II) 1,2,4-Triazolin-5-ylidene Complexes: Stereoelectronic Influences on Their Catalytic Activity in Hydroelementation Reactions. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00260] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Van Ha Nguyen
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi 110403, Vietnam
| | - Thanh Tuan Dang
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi 110403, Vietnam
| | - Hung Huy Nguyen
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi 110403, Vietnam
| | - Han Vinh Huynh
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Republic of Singapore
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20
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Rothemund M, Bär SI, Rehm T, Kostrhunova H, Brabec V, Schobert R. Antitumoral effects of mitochondria-targeting neutral and cationic cis-[bis(1,3-dibenzylimidazol-2-ylidene)Cl(L)]Pt(ii) complexes. Dalton Trans 2020; 49:8901-8910. [DOI: 10.1039/d0dt01664k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
cis-[Bis(1,3-dibenzylimidazol-2-ylidene)PtIICl(L)] complexes target mitochondria regardless of charge and size of ligands L, yet show different anticancer effects.
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Affiliation(s)
| | - Sofia I. Bär
- Organic Chemistry Laboratory
- University of Bayreuth
- 95440 Bayreuth
- Germany
| | - Tobias Rehm
- Organic Chemistry Laboratory
- University of Bayreuth
- 95440 Bayreuth
- Germany
| | - Hana Kostrhunova
- Czech Academy of Sciences
- Institute of Biophysics
- CZ-61265
- Czech Republic
| | - Viktor Brabec
- Czech Academy of Sciences
- Institute of Biophysics
- CZ-61265
- Czech Republic
| | - Rainer Schobert
- Organic Chemistry Laboratory
- University of Bayreuth
- 95440 Bayreuth
- Germany
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21
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Bellemin-Laponnaz S. N-Heterocyclic Carbene Platinum Complexes: A Big Step Forward for Effective Antitumor Compounds. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900960] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Stéphane Bellemin-Laponnaz
- Institut de Physique et Chimie des Matériaux de Strasbourg; IPCMS; CNRS Université de Strasbourg; 23, rue du Loess 67034 Strasbourg France
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22
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Estrada-Ortiz N, Lopez-Gonzales E, Woods B, Stürup S, de Graaf IAM, Groothuis GMM, Casini A. Ex vivo toxicological evaluation of experimental anticancer gold(i) complexes with lansoprazole-type ligands. Toxicol Res (Camb) 2019; 8:885-895. [PMID: 32190293 PMCID: PMC7067241 DOI: 10.1039/c9tx00149b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 09/19/2019] [Indexed: 12/13/2022] Open
Abstract
Gold-based compounds are of great interest in the field of medicinal chemistry as novel therapeutic (anticancer) agents due to their peculiar reactivity and mechanisms of action with respect to organic drugs. Despite their promising pharmacological properties, the possible toxic effects of gold compounds need to be carefully evaluated in order to optimize their design and applicability. This study reports on the potential toxicity of three experimental gold-based anticancer compounds featuring lansoprazole ligands (1-3) studied in an ex vivo model, using rat precision cut kidney and liver slices (PCKS and PCLS, respectively). The results showed a different toxicity profile for the tested compounds, with the neutral complex 2 being the least toxic, even less toxic than cisplatin, followed by the cationic complex 1. The dinuclear cationic gold complex 3 was the most toxic in both liver and kidney slices. This result correlated with the metal uptake of the different compounds assessed by ICP-MS, where complex 3 showed the highest accumulation of gold in liver and kidney slices. Interestingly compound 1 showed the highest selectivity towards cancer cells compared to the healthy tissues. Histomorphology evaluation showed a similar pattern for all three Au(i) complexes, where the distal tubular cells suffered the most extensive damage, in contrast to the damage in the proximal tubules induced by cisplatin. The binding of representative gold compounds with the model ubiquitin was also studied by ESI-MS, showing that after 24 h incubation only 'naked' Au ions were bound to the protein following ligands' loss. The mRNA expression of stress response genes appeared to be similar for both evaluated organs, suggesting oxidative stress as the possible mechanism of toxicity. The obtained results open new perspectives towards the design and testing of bifunctional gold complexes with chemotherapeutic applications.
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Affiliation(s)
- Natalia Estrada-Ortiz
- Dept. Pharmacokinetics , Toxicology and Targeting , Groningen Research Institute of Pharmacy , University of Groningen , A. Deusinglaan 1 , 9713AV Groningen , The Netherlands . ;
| | - Elena Lopez-Gonzales
- Dept. Pharmacokinetics , Toxicology and Targeting , Groningen Research Institute of Pharmacy , University of Groningen , A. Deusinglaan 1 , 9713AV Groningen , The Netherlands . ;
| | - Ben Woods
- School of Chemistry , Cardiff University , Main Building , Park Place , CF10 3AT Cardiff , UK
| | - Stefan Stürup
- Dept. of Pharmacy , University of Copenhagen , Universitetsparken 2 , 2100 Copenhagen , Denmark
| | - Inge A M de Graaf
- Dept. Pharmacokinetics , Toxicology and Targeting , Groningen Research Institute of Pharmacy , University of Groningen , A. Deusinglaan 1 , 9713AV Groningen , The Netherlands . ;
| | - Geny M M Groothuis
- Dept. Pharmacokinetics , Toxicology and Targeting , Groningen Research Institute of Pharmacy , University of Groningen , A. Deusinglaan 1 , 9713AV Groningen , The Netherlands . ;
| | - Angela Casini
- Dept. Pharmacokinetics , Toxicology and Targeting , Groningen Research Institute of Pharmacy , University of Groningen , A. Deusinglaan 1 , 9713AV Groningen , The Netherlands . ;
- School of Chemistry , Cardiff University , Main Building , Park Place , CF10 3AT Cardiff , UK
- Department of Chemistry , Technical University of Munich , Lichtenbergstr. 4 , 85748 Garching b. München , Germany
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23
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Rehm T, Rothemund M, Dietel T, Kempe R, Schobert R. Synthesis, structures and cytotoxic effects in vitro of cis- and trans-[Pt IVCl 4(NHC) 2] complexes and their Pt II precursors. Dalton Trans 2019; 48:16358-16365. [PMID: 31624819 DOI: 10.1039/c9dt02438g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Four new bis(N,N-dialkylbenzimidazol-2-ylidene)dichlorido platinum(ii) complexes 2 featuring N-alkyl substituents of increasing size (a: Me, b: Et, c: n-butyl, d: n-octyl) were synthesised and oxidised with PhICl2 to give the corresponding [PtIVCl4(N,N-dialkylbenzimidazol-2-ylidene)2] complexes 4 as potential anticancer prodrugs. The known bis(N,N-dibenzylimidazol-2-ylidene)dichlorido platinum(ii) complex 1 was likewise oxidised to [PtIVCl4(N,N-dibenzylimidazol-2-ylidene)2] 3. In contrast, oxidation of complexes 1 and 2 with H2O2 or hypochlorites, or exchange of chlorido for hydroxo ligands in tetrachlorido complexes 4 failed to give isolable complexes of type [PtIVCl4-n(OH)n(NHC)2]. In MTT assays the [PtIICl2(NHC)2]/[PtIVCl4(NHC)2] complex couples 1/3, 2c/4c, and trans-2c/trans-4c, bearing either N-benzyl or N-butyl substituents, each showed similar single-digit micromolar IC50 values against at least three out of five human cancer cell lines, presumably due to an intracellular reduction of the PtIV complexes to their active PtII congeners. Unlike cisplatin, whose anticancer effect requires functional p53, each of them was active both in wildtype and in p53-negative HCT116 colon carcinoma cells. In ethidium bromide saturation assays with isolated DNA, cis-(bis-NHC)PtII complexes such as 1 caused morphological DNA changes more pronounced than those initiated by cisplatin, while the corresponding cis-(bis-NHC)PtIV complexes such as 3 interacted with DNA in a less structure-modifying way.
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Affiliation(s)
- Tobias Rehm
- Organic Chemistry Laboratory, University Bayreuth, Universitaetsstrasse 30, 95440 Bayreuth, Germany.
| | - Matthias Rothemund
- Organic Chemistry Laboratory, University Bayreuth, Universitaetsstrasse 30, 95440 Bayreuth, Germany.
| | - Thomas Dietel
- Lehrstuhl fuer Anorganische Chemie II, University Bayreuth, Universitaetsstrasse 30, 95440 Bayreuth, Germany
| | - Rhett Kempe
- Lehrstuhl fuer Anorganische Chemie II, University Bayreuth, Universitaetsstrasse 30, 95440 Bayreuth, Germany
| | - Rainer Schobert
- Organic Chemistry Laboratory, University Bayreuth, Universitaetsstrasse 30, 95440 Bayreuth, Germany.
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24
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Türker F, Gürses C, Barut Celepci D, Aktaş A, Ateş B, Gök Y. New morpholine‐liganded palladium(II)
N
‐heterocyclic carbene complexes: Synthesis, characterization, crystal structure, and DNA‐binding studies. Arch Pharm (Weinheim) 2019; 352:e1900187. [DOI: 10.1002/ardp.201900187] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/30/2019] [Accepted: 09/07/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Ferhat Türker
- Department of Chemistry, Faculty of Scienceİnönü University Malatya Turkey
| | - Canbolat Gürses
- Department of Molecular Biology and Genetics, Faculty of Scienceİnönü University Malatya Turkey
| | - Duygu Barut Celepci
- Department of Physics, Faculty of ScienceDokuz Eylül University Buca Izmir Turkey
| | - Aydın Aktaş
- Department of Chemistry, Faculty of Scienceİnönü University Malatya Turkey
| | - Burhan Ateş
- Department of Chemistry, Faculty of Scienceİnönü University Malatya Turkey
| | - Yetkin Gök
- Department of Chemistry, Faculty of Scienceİnönü University Malatya Turkey
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25
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Platinum alkynyl complexes: Cellular uptake, inhibition of thioredoxin reductase and toxicity in zebrafish embryos. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.118982] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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26
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Karaca EÖ, Çiftçi O, Özdemir İ, Yakali G, Aygün M, Gürbüz N, Özdemir İ. Platinum (II)
N
‐heterocyclic carbene complexes: Synthesis, characterization and cytotoxic properties. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4851] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Emine Özge Karaca
- Catalysis Research and Application Centerİnönü University 44280 Malatya Turkey
| | - Osman Çiftçi
- Department of PharmacologyPamukkale University Faculty of Medicine 20070 Denizli Turkey
| | - İlknur Özdemir
- Faculty of Science and Arts, Department of Chemistryİnönü University 4280 Malatya Turkey
| | - Gül Yakali
- Serik Gülsün‐Süleyman Süral Vocational School of Higher Education, Department of Opticianry ProgramAkdeniz University 07070‐Serik Antalya Turkey
| | - Muhittin Aygün
- Faculty of Sciences, Department of PhysicsDokuz Eylül University 35160‐Buca İzmir Turkey
| | - Nevin Gürbüz
- Catalysis Research and Application Centerİnönü University 44280 Malatya Turkey
- Faculty of Science and Arts, Department of Chemistryİnönü University 4280 Malatya Turkey
| | - İsmail Özdemir
- Catalysis Research and Application Centerİnönü University 44280 Malatya Turkey
- Faculty of Science and Arts, Department of Chemistryİnönü University 4280 Malatya Turkey
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27
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Dankhoff K, Ahmad A, Weber B, Biersack B, Schobert R. Anticancer properties of a new non-oxido vanadium(IV) complex with a catechol-modified 3,3'-diindolylmethane ligand. J Inorg Biochem 2019; 194:1-6. [PMID: 30784705 DOI: 10.1016/j.jinorgbio.2019.02.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/05/2019] [Accepted: 02/08/2019] [Indexed: 01/16/2023]
Abstract
In order to identify new active drug candidates against cancer diseases we investigated the tumor cell growth inhibition, formation of reactive oxygen species, mitochondrial membrane damage, cell cycle arrest and DNA binding activity of a new bis(triethylammonium) tris[1,1-bis(indol-3-yl)-1-(3,4-catecholate)methane]vanadate(IV) complex. It exhibited significant antiproliferative activity against various cancer cell lines, showed a stronger DNA binding than cisplatin and led to mitochondrial damage, a formation of reactive oxygen species, and a cell cycle arrest in the G2/M phase of cancer cells.
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Affiliation(s)
- Katja Dankhoff
- Inorganic Chemistry IV, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany
| | - Aamir Ahmad
- USA Mitchell Cancer Institute, 1660 Springhill Avenue, Mobile, AL 36604-1405, USA
| | - Birgit Weber
- Inorganic Chemistry IV, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany
| | - Bernhard Biersack
- Organic Chemistry Laboratory, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany.
| | - Rainer Schobert
- Organic Chemistry Laboratory, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany
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28
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Şahin-Bölükbaşı S, Şahin N, Tahir MN, Arıcı C, Çevik E, Gürbüz N, Özdemir İ, Cummings BS. Novel N-heterocyclic carbene silver(I) complexes: Synthesis, structural characterization, and anticancer activity. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.11.044] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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29
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Millán G, Giménez N, Lara R, Berenguer JR, Moreno MT, Lalinde E, Alfaro-Arnedo E, López IP, Piñeiro-Hermida S, Pichel JG. Luminescent Cycloplatinated Complexes with Biologically Relevant Phosphine Ligands: Optical and Cytotoxic Properties. Inorg Chem 2019; 58:1657-1673. [DOI: 10.1021/acs.inorgchem.8b03211] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gonzalo Millán
- Departamento de Química, Centro de Síntesis Química de La Rioja, Universidad de La Rioja, 26006 Logroño, Spain
| | - Nora Giménez
- Departamento de Química, Centro de Síntesis Química de La Rioja, Universidad de La Rioja, 26006 Logroño, Spain
| | - Rebeca Lara
- Departamento de Química, Centro de Síntesis Química de La Rioja, Universidad de La Rioja, 26006 Logroño, Spain
| | - Jesús R. Berenguer
- Departamento de Química, Centro de Síntesis Química de La Rioja, Universidad de La Rioja, 26006 Logroño, Spain
| | - M. Teresa Moreno
- Departamento de Química, Centro de Síntesis Química de La Rioja, Universidad de La Rioja, 26006 Logroño, Spain
| | - Elena Lalinde
- Departamento de Química, Centro de Síntesis Química de La Rioja, Universidad de La Rioja, 26006 Logroño, Spain
| | - Elvira Alfaro-Arnedo
- Centro de Investigación Biomédica de La Rioja, Fundación Rioja Salud, 26006 Logroño, Spain
| | - Icíar P. López
- Centro de Investigación Biomédica de La Rioja, Fundación Rioja Salud, 26006 Logroño, Spain
| | - Sergio Piñeiro-Hermida
- Centro de Investigación Biomédica de La Rioja, Fundación Rioja Salud, 26006 Logroño, Spain
| | - José G. Pichel
- Centro de Investigación Biomédica de La Rioja, Fundación Rioja Salud, 26006 Logroño, Spain
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30
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Current State of Platinum Complexes for the Treatment of Advanced and Drug-Resistant Breast Cancers. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1152:253-270. [DOI: 10.1007/978-3-030-20301-6_13] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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31
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Dinda J, Jhulki L, Kisan HK, Mahapatra PK, Isab AA, Bielawski CW. Synthesis and Study of Palladium(II) and Platinum(II) Complexes Supported by a Common “Wingtip” N-Heterocyclic Carbene. ChemistrySelect 2018. [DOI: 10.1002/slct.201802510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Joydev Dinda
- Department of Chemistry; Utkal University; Bhubaneswar-751004, Odisha India
| | - Lalmohan Jhulki
- Department of Applied Science; Haldia Institute of Technology, Haldia-32, West Bengal; India
| | - Hemanta K. Kisan
- Department of Chemistry; Utkal University; Bhubaneswar-751004, Odisha India
| | - Pradip K. Mahapatra
- Department of Chemistry; Jadavpur University; Kolkata-700032, West Bengal India
| | - Anvarhusein A. Isab
- Department of Chemistry; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
| | - Christopher W. Bielawski
- Center for Multidimensional Carbon Materials (CMCM); Institute for Basic Science (IBS), Ulsan; South Korea 44919
- Department of Chemistry; Ulsan National Institute of Science and Technology (UNIST), Ulsan; South Korea 44919
- Department of Energy Engineering; UNIST, Ulsan; South Korea 44919
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32
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Spreckelmeyer S, van der Zee M, Bertrand B, Bodio E, Stürup S, Casini A. Relevance of Copper and Organic Cation Transporters in the Activity and Transport Mechanisms of an Anticancer Cyclometallated Gold(III) Compound in Comparison to Cisplatin. Front Chem 2018; 6:377. [PMID: 30234099 PMCID: PMC6131305 DOI: 10.3389/fchem.2018.00377] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 08/03/2018] [Indexed: 01/23/2023] Open
Abstract
The molecular mechanisms of toxicity and cellular transport of anticancer metallodrugs, including platinum-based agents, have not yet been fully elucidated. The aim of our study was to investigate the relevance of copper transporters (CTR1 and ATP7A/B), organic cation transporters (OCT2) and the multidrug and toxin extrusion proteins (MATE) in the intracellular accumulation of a novel organometallic cytotoxic Au(III) compound in cancer cells in comparison to cisplatin. Specifically, the synthesis and characterization of the gold complex [Au(pyb-H)(PPh2Ar)Cl]PF6 (PPh2Ar = 3-[4-(diphenylphosphino)phenyl]-7-methoxy-2H-chromen-2-one] (1), featuring a coumarin ligand endowed with “smart” fluorescence properties, have been achieved. Initially, the cytotoxic effects of both cisplatin and 1 were studied in a small panel of human cancer cells, and against a non-tumorigenic cell line in vitro. Thus, the human ovarian cancer cell line A2780 and its cisplatin resistant variant A2780cisR, were selected, being most sensitive to the treatment of the gold complex. Co-incubation of the metallodrugs with CuCl2 (a CTR1 substrate) increased the cytotoxic effects of both the Au(III) complex and cisplatin; while co-incubation with cimetidine (inhibitor of OCT2 and MATE) showed some effect only after 72 h incubation. ICP-MS (Inductively Coupled Plasma Mass Spectrometry) analysis of the cell extracts showed that co-incubation with CuCl2 increases Au and Cu accumulation in both cancer cell lines, in accordance with the enhanced antiproliferative effects. Conversely, for cisplatin, no increase in Pt content could be observed in both cell lines after co-incubation with either CuCl2 or cimetidine, excluding the involvement of CTR1, OCT2, and MATE in drug accumulation and overall anticancer effects. This result, together with the evidence for increased Cu content in A2780 cells after cisplatin co-treatment with CuCl2, suggests that copper accumulation is the reason for the observed enhanced anticancer effects in this cell line. Moreover, metal uptake studies in the same cell lines indicate that both 1 and cisplatin are not transported intracellularly by CTR1 and OCT2. Finally, preliminary fluorescence microscopy studies enabled the visualization of the sub-cellular distribution of the gold compound in A2780 cells, suggesting accumulation in specific cytosolic components/organelles.
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Affiliation(s)
- Sarah Spreckelmeyer
- Department Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, Netherlands.,Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, Vancouver, BC, Canada
| | - Margot van der Zee
- Department Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, Netherlands
| | - Benoît Bertrand
- Department Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, Netherlands.,ICMUB UMR6302, CNRS, Université Bourgogne Franche-Comté, Dijon, France
| | - Ewen Bodio
- ICMUB UMR6302, CNRS, Université Bourgogne Franche-Comté, Dijon, France
| | - Stefan Stürup
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Angela Casini
- Department Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, Netherlands.,School of Chemistry, Cardiff University, Cardiff, United Kingdom
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33
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Yang Y, Guo L, Tian Z, Gong Y, Zheng H, Zhang S, Xu Z, Ge X, Liu Z. Novel and Versatile Imine-N-Heterocyclic Carbene Half-Sandwich Iridium(III) Complexes as Lysosome-Targeted Anticancer Agents. Inorg Chem 2018; 57:11087-11098. [DOI: 10.1021/acs.inorgchem.8b01656] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yuliang Yang
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Lihua Guo
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Zhenzhen Tian
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Yuteng Gong
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Hongmei Zheng
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Shumiao Zhang
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Zhishan Xu
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
- Department of Chemistry and Chemical Engineering, Shandong Normal University, Jinan 250014, China
| | - Xingxing Ge
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Zhe Liu
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
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New (arene)ruthenium(II) complexes of 4‑aryl‑4H‑naphthopyrans with anticancer and anti-vascular activities. J Inorg Biochem 2018; 184:69-78. [DOI: 10.1016/j.jinorgbio.2018.03.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 03/06/2018] [Accepted: 03/22/2018] [Indexed: 01/06/2023]
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35
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Streciwilk W, Terenzi A, Lo Nardo F, Prochnow P, Bandow JE, Keppler BK, Ott I. Synthesis and Biological Evaluation of Organometallic Complexes Bearing Bis-1,8-naphthalimide Ligands. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800384] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Wojciech Streciwilk
- Institute of Medicinal and Pharmaceutical Chemistry; Technische Universität Braunschweig; Beethoven Straße 55 38106 Braunschweig Germany
| | - Alessio Terenzi
- Institute of Inorganic Chemistry; University of Vienna; Waehringer Straße 42 1090 Vienna Austria
| | - Federico Lo Nardo
- Institute of Inorganic Chemistry; University of Vienna; Waehringer Straße 42 1090 Vienna Austria
| | - Pascal Prochnow
- Applied Microbiology; Ruhr-Universität Bochum; Universitätsstraße 150 44801 Bochum Germany
| | - Julia Elisabeth Bandow
- Applied Microbiology; Ruhr-Universität Bochum; Universitätsstraße 150 44801 Bochum Germany
| | - Bernhard K. Keppler
- Institute of Inorganic Chemistry; University of Vienna; Waehringer Straße 42 1090 Vienna Austria
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical Chemistry; Technische Universität Braunschweig; Beethoven Straße 55 38106 Braunschweig Germany
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36
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Streciwilk W, Terenzi A, Cheng X, Hager L, Dabiri Y, Prochnow P, Bandow JE, Wölfl S, Keppler BK, Ott I. Fluorescent organometallic rhodium(I) and ruthenium(II) metallodrugs with 4-ethylthio-1,8-naphthalimide ligands: Antiproliferative effects, cellular uptake and DNA-interaction. Eur J Med Chem 2018; 156:148-161. [PMID: 30006161 DOI: 10.1016/j.ejmech.2018.06.056] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 06/22/2018] [Accepted: 06/23/2018] [Indexed: 12/28/2022]
Abstract
Fluorescent 4-ethylthio-1,8-naphthalimides containing rhodium(I) N-heterocyclic carbene (NHC) and ruthenium (II) NHC fragments were synthesised and evaluated for their antiproliferative effects, cellular uptake and DNA-binding activity. Both types of organometallics triggered ligand dependent efficient cytotoxic effects against tumor cells with the rhodium(I) NHC derivatives causing stronger effects than the ruthenium (II) NHC analogues. Antiproliferative effects could also be observed against several pathogenic Gram-positive bacterial strains, whereas the growth of Gram-negative bacteria was not substantially affected. Cellular uptake was confirmed by atomic absorption spectroscopy as well as by fluorescence microscopy indicating a general ligand dependent accumulation in the cells. An in-depth study on the interaction with DNA confirmed insertion of the naphthalimide moiety between the planar bases of B-DNA via an intercalation mechanism, as well as its stacking on top of the quartets of G-quadruplex structures. Furthermore, additional coordinative binding of the organometallic complexes to the model DNA base 9-ethylguanine could be detected. The studied compounds thus represent promising bioorganometallics featuring strong pharmacological effects in combination with excellent cellular imaging properties.
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Affiliation(s)
- Wojciech Streciwilk
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethoven Straße 55, 38106, Braunschweig, Germany
| | - Alessio Terenzi
- Institute of Inorganic Chemistry, University of Vienna, Waehringer Straße 42, A-1090, Vienna, Austria
| | - Xinlai Cheng
- Department of Pharmacy and Molecular Biotechnology, Division of Pharmaceutical Biology, University of Heidelberg, Im Neuenheimer Feld 364, D-69120, Heidelberg, Germany
| | - Laura Hager
- Institute of Inorganic Chemistry, University of Vienna, Waehringer Straße 42, A-1090, Vienna, Austria
| | - Yasamin Dabiri
- Department of Pharmacy and Molecular Biotechnology, Division of Pharmaceutical Biology, University of Heidelberg, Im Neuenheimer Feld 364, D-69120, Heidelberg, Germany
| | - Pascal Prochnow
- Applied Microbiology, Ruhr-Universität Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Julia Elisabeth Bandow
- Applied Microbiology, Ruhr-Universität Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Stefan Wölfl
- Department of Pharmacy and Molecular Biotechnology, Division of Pharmaceutical Biology, University of Heidelberg, Im Neuenheimer Feld 364, D-69120, Heidelberg, Germany
| | - Bernhard K Keppler
- Institute of Inorganic Chemistry, University of Vienna, Waehringer Straße 42, A-1090, Vienna, Austria
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethoven Straße 55, 38106, Braunschweig, Germany.
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37
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Boscutti G, Nardon C, Marchiò L, Crisma M, Biondi B, Dalzoppo D, Dalla Via L, Formaggio F, Casini A, Fregona D. Anticancer Gold(III) Peptidomimetics: From Synthesis to in vitro and ex vivo Biological Evaluations. ChemMedChem 2018; 13:1131-1145. [PMID: 29570944 DOI: 10.1002/cmdc.201800098] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 03/14/2018] [Indexed: 12/25/2022]
Abstract
Five new AuIII -peptidodithiocarbamato complexes of the type [AuIII Br2 (dtc-AA1 -AA2 -OR] (in which AA1 =N-methylglycine (Sar), l/d-Pro; AA2 =l/d-Ala, α-aminoisobutyric acid (Aib); R=OtBu, triethylene glycol methyl ether), differing with regard to the amino acid sequence and/or the chiral amino acid configuration, were designed to enhance tumor selectivity and bioavailability. The gold(III)-based moiety was functionalized to exploit the targeting properties of the peptidomimetic ligand toward two peptide transporters (namely PEPT1 and PEPT2), which are upregulated in several tumor cells. The compounds were synthesized and fully characterized, mainly by means of elemental analysis, one- and two-dimensional NMR spectroscopy, FT-IR, and UV/Vis spectrophotometry. The crystal structures of three compounds were also solved by X-ray diffraction. In vitro cytotoxicity studies using a panel of human tumor cell lines (A549 [non-small-cell lung carcinoma], MCF-7 [breast cancer], A2780 [ovarian carcinoma], H1975 [non-small-cell lung carcinoma], H460 [large-cell lung carcinoma], and A431 [human epidermoid carcinoma]) showed the dtc-Pro-Aib-OtBu derivative to be very effective, with GI50 values much lower than those of cisplatin. This complex was thus selected for evaluating stability under physiological conditions and possible interactions with serum albumin, as well in PARP-1 enzyme inhibition assays and preliminary ex vivo toxicity experiments on healthy rat tissues.
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Affiliation(s)
- Giulia Boscutti
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Chiara Nardon
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Luciano Marchiò
- SCVSA Department, University of Parma, Parco Area delle Scienze 17/A, 43121, Parma, Italy
| | - Marco Crisma
- Institute of Biomolecular Chemistry, Padova Unit, CNR, via Marzolo 1, 35131, Padova, Italy
| | - Barbara Biondi
- Institute of Biomolecular Chemistry, Padova Unit, CNR, via Marzolo 1, 35131, Padova, Italy
| | - Daniele Dalzoppo
- Department of Pharmaceutical Sciences, University of Padova, via Marzolo 5, 35131, Padova, Italy
| | - Lisa Dalla Via
- Department of Pharmaceutical Sciences, University of Padova, via Marzolo 5, 35131, Padova, Italy
| | - Fernando Formaggio
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy.,Institute of Biomolecular Chemistry, Padova Unit, CNR, via Marzolo 1, 35131, Padova, Italy
| | - Angela Casini
- School of Chemistry, Cardiff University, Main Building, Park Place, CF10 3AT, Cardiff, UK.,Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 GV, Groningen, The Netherlands
| | - Dolores Fregona
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
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Hahn L, Lübtow MM, Lorson T, Schmitt F, Appelt-Menzel A, Schobert R, Luxenhofer R. Investigating the Influence of Aromatic Moieties on the Formulation of Hydrophobic Natural Products and Drugs in Poly(2-oxazoline)-Based Amphiphiles. Biomacromolecules 2018; 19:3119-3128. [DOI: 10.1021/acs.biomac.8b00708] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lukas Hahn
- Functional Polymer Materials, Chair for Advanced Materials Synthesis, Department of Chemistry and Pharmacy, Julius-Maximilians-Universität Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Michael M. Lübtow
- Functional Polymer Materials, Chair for Advanced Materials Synthesis, Department of Chemistry and Pharmacy, Julius-Maximilians-Universität Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Thomas Lorson
- Functional Polymer Materials, Chair for Advanced Materials Synthesis, Department of Chemistry and Pharmacy, Julius-Maximilians-Universität Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Frederik Schmitt
- Functional Polymer Materials, Chair for Advanced Materials Synthesis, Department of Chemistry and Pharmacy, Julius-Maximilians-Universität Würzburg, Röntgenring 11, 97070 Würzburg, Germany
- Lehrstuhl Tissue Engineering und Regenerative Medizin and Fraunhofer-Institut für Silicatforschung ISC, Universitätklinikum Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Antje Appelt-Menzel
- Lehrstuhl Tissue Engineering und Regenerative Medizin and Fraunhofer-Institut für Silicatforschung ISC, Universitätklinikum Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Rainer Schobert
- Organic Chemistry Laboratory, Universität Bayreuth, Universitätsstrasse 30, 95447 Bayreuth, Germany
| | - Robert Luxenhofer
- Functional Polymer Materials, Chair for Advanced Materials Synthesis, Department of Chemistry and Pharmacy, Julius-Maximilians-Universität Würzburg, Röntgenring 11, 97070 Würzburg, Germany
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Miguel Coello AB, Bardají M, Coco S, Donnio B, Heinrich B, Espinet P. Triphenylene-Imidazolium Salts and Their NHC Metal Complexes, Materials with Segregated Multicolumnar Mesophases. Inorg Chem 2018; 57:4359-4369. [PMID: 29608287 DOI: 10.1021/acs.inorgchem.7b03178] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two imidazolium salts containing one or two pentadodecyloxytriphenylene units linked through a hexyloxy chain and Br-, [AuBr mCl4- m]-, or [PtBr mCl4- m]2- ( m = 0-3) as counterion have been prepared. Reaction of the imidazolium bromides with M2O (M = Cu, Ag), or carbene transmetalation from the silver product, leads to N-heterocyclic carbene complexes [MX(NHC)] (M = Cu, X = Br; M = Au, X = Cl, C≡CPh), [Ag(NHC)2][AgBr2], and [PtCl2(NHC)2], with NHC bearing one or two triphenylene fragments. Except for the gold derivatives and one Cu complex, the rest of them behave as liquid crystals organized in columnar mesophases (rectangular c2 mm or p2mg or hexagonal p6mm symmetries) with melting points in the range 30 to 60 °C and clearing points in the range 57-112 °C. The mesophase structures were determined by small-angle X-ray scattering. Structural studies and models point to nanosegregation of triphenylene columns and imidazolium/metal carbene moieties, separated by alkoxy chains, leading to multicolumnar systems. The compounds display emission spectra related to the triphenylene core in solution, in the mesophase, in the isotropic liquid, and in the solid state.
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Affiliation(s)
- Ana B Miguel Coello
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias , Universidad de Valladolid , E-47071 Valladolid , Spain
| | - Manuel Bardají
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias , Universidad de Valladolid , E-47071 Valladolid , Spain
| | - Silverio Coco
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias , Universidad de Valladolid , E-47071 Valladolid , Spain
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) , UMR 7504 (CNRS-Université de Strasbourg) , 23 rue du Loess, BP 43 , 67034 Strasbourg Cedex 2, France
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) , UMR 7504 (CNRS-Université de Strasbourg) , 23 rue du Loess, BP 43 , 67034 Strasbourg Cedex 2, France
| | - Pablo Espinet
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias , Universidad de Valladolid , E-47071 Valladolid , Spain
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40
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Zou T, Lok CN, Wan PK, Zhang ZF, Fung SK, Che CM. Anticancer metal-N-heterocyclic carbene complexes of gold, platinum and palladium. Curr Opin Chem Biol 2018; 43:30-36. [DOI: 10.1016/j.cbpa.2017.10.014] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 10/09/2017] [Accepted: 10/11/2017] [Indexed: 11/30/2022]
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41
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Zhang JJ, Muenzner JK, Abu El Maaty MA, Karge B, Schobert R, Wölfl S, Ott I. A multi-target caffeine derived rhodium(i) N-heterocyclic carbene complex: evaluation of the mechanism of action. Dalton Trans 2018; 45:13161-8. [PMID: 27334935 DOI: 10.1039/c6dt02025a] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A rhodium(i) and a ruthenium(ii) complex with a caffeine derived N-heterocyclic carbene (NHC) ligand were biologically investigated as organometallic conjugates consisting of a metal center and a naturally occurring moiety. While the ruthenium(ii) complex was largely inactive, the rhodium(i) NHC complex displayed selective cytotoxicity and significant anti-metastatic and in vivo anti-vascular activities and acted as both a mammalian and an E. coli thioredoxin reductase inhibitor. In HCT-116 cells it increased the reactive oxygen species level, leading to DNA damage, and it induced cell cycle arrest, decreased the mitochondrial membrane potential, and triggered apoptosis. This rhodium(i) NHC derivative thus represents a multi-target compound with promising anti-cancer potential.
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Affiliation(s)
- Jing-Jing Zhang
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstr. 55, D-38106 Braunschweig, Germany. and Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 364, D-69120 Heidelberg, Germany
| | - Julienne K Muenzner
- Department of Organic Chemistry, University Bayreuth, Universitätsstr. 30, D-95440 Bayreuth, Germany
| | - Mohamed A Abu El Maaty
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 364, D-69120 Heidelberg, Germany
| | - Bianka Karge
- Department of Chemical Biology, Helmholtz Centre for Infection Research GmbH, Inhoffenstr. 7, D-38124 Braunschweig, Germany
| | - Rainer Schobert
- Department of Organic Chemistry, University Bayreuth, Universitätsstr. 30, D-95440 Bayreuth, Germany
| | - Stefan Wölfl
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 364, D-69120 Heidelberg, Germany
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstr. 55, D-38106 Braunschweig, Germany.
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42
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Synthesis, Structural Characterization and Anti-Proliferative Activity of (κ1
-C
)- and (κ2
-C
,S
)-PtII
Complexes Bearing Thioether-Functionalized N-Heterocyclic Carbenes. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701183] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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43
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Rehm T, Rothemund M, Bär A, Dietel T, Kempe R, Kostrhunova H, Brabec V, Kasparkova J, Schobert R. N,N-Dialkylbenzimidazol-2-ylidene platinum complexes – effects of alkyl residues and ancillary cis-ligands on anticancer activity. Dalton Trans 2018; 47:17367-17381. [DOI: 10.1039/c8dt03360a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Benzimidazol-2-ylidene platinum complexes exhibit anticancer activity, which is tuneable via N-alkyl residues and ancillary ligands and is different from that of cisplatin.
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Affiliation(s)
- Tobias Rehm
- Department of Chemistry
- University Bayreuth
- 95440 Bayreuth
- Germany
| | | | - Alexander Bär
- Department of Chemistry
- University Bayreuth
- 95440 Bayreuth
- Germany
| | - Thomas Dietel
- Lehrstuhl fuer Anorganische Chemie II
- University Bayreuth
- 95440 Bayreuth
- Germany
| | - Rhett Kempe
- Lehrstuhl fuer Anorganische Chemie II
- University Bayreuth
- 95440 Bayreuth
- Germany
| | - Hana Kostrhunova
- Institute of Biophysics
- Academy of Sciences of the Czech Republic
- CZ-61265 Brno
- Czech Republic
| | - Viktor Brabec
- Institute of Biophysics
- Academy of Sciences of the Czech Republic
- CZ-61265 Brno
- Czech Republic
| | - Jana Kasparkova
- Institute of Biophysics
- Academy of Sciences of the Czech Republic
- CZ-61265 Brno
- Czech Republic
| | - Rainer Schobert
- Department of Chemistry
- University Bayreuth
- 95440 Bayreuth
- Germany
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44
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Rana BK, Mishra S, Sarkar D, Mondal TK, Seth SK, Bertolasi V, Das Saha K, Bielawski CW, Isab AA, Dinda J. Isoelectronic Pt(ii)– and Au(iii)–N-heterocyclic carbene complexes: a structural and biological comparison. NEW J CHEM 2018. [DOI: 10.1039/c8nj01562g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
To differentiate the intrinsic biological activities displayed by Pt vs. Au reagents, a series of square planar carbene complexes were compared.
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Affiliation(s)
| | - Snehasis Mishra
- Cancer Biology and Inflammatory Disorder Division, Indian Institute of Chemical Biology
- Kolkata-700032
- India
| | - Deblina Sarkar
- Department of Chemistry, Jadavpur University
- Kolkata-700032
- India
| | | | - Saikat K. Seth
- Department of Physics, Jadavpur University
- Kolkata-700032
- India
| | - Valerio Bertolasi
- Dipartimento di Chimica and Centro di Strutturistica Diffrattometrica, Universita' di Ferrara
- Italy
| | - Krishna Das Saha
- Cancer Biology and Inflammatory Disorder Division, Indian Institute of Chemical Biology
- Kolkata-700032
- India
| | - Christopher W. Bielawski
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS)
- Ulsan 44919
- Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST)
- Ulsan 44919
| | - Anvarhusein A. Isab
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Joydev Dinda
- Department of Chemistry
- Utkal University
- Bhubaneswar-751004
- India
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Spreckelmeyer S, Estrada-Ortiz N, Prins GGH, van der Zee M, Gammelgaard B, Stürup S, de Graaf IAM, Groothuis GMM, Casini A. On the toxicity and transport mechanisms of cisplatin in kidney tissues in comparison to a gold-based cytotoxic agent. Metallomics 2017; 9:1786-1795. [PMID: 29104982 DOI: 10.1039/c7mt00271h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Mechanisms of toxicity and cellular transport of anticancer metallodrugs, including platinum-based agents, have not yet been fully elucidated. Here, we studied the toxic effects and accumulation mechanisms of cisplatin in healthy rat kidneys ex vivo, using the Precision Cut Tissue Slices (PCTS) method. In addition, for the first time, we investigated the nephrotoxic effects of an experimental anticancer cyclometallated complex [Au(pyb-H)(PTA)Cl]PF6 (PTA = 1,3,5-triazaphosphaadamantane). The viability of the kidney slices after metallodrug treatment was evaluated by ATP content determination and histomorphology analysis. A concentration dependent decrease in viability of PCKS was observed after exposure to cisplatin or the Au(iii) complex, which correlated with the increase in slice content of Pt and Au, respectively. Metal accumulation in kidney slices was analysed by ICP-MS. The involvement of OCTs and MATE transporters in the accumulation of both metal compounds in kidneys was evaluated co-incubating the tissues with cimitedine, inhibitor of OCT and MATE. Studies of mRNA expression of the markers KIM-1, villin, p53 and Bax showed that cisplatin damages proximal tubules, whereas the Au(iii) complex preferentially affects the distal tubules. However, no effect of cimetidine on the toxicity or accumulation of cisplatin and the Au(iii) complex was observed. The effect of temperature on metallodrug accumulation in kidneys suggests the involvement of a carrier-mediated uptake process, other than OCT2, for cisplatin; while carrier-mediated excretion was suggested in the cases of the Au(iii) complex.
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Affiliation(s)
- Sarah Spreckelmeyer
- Dept. Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713AV Groningen, The Netherlands and Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Natalia Estrada-Ortiz
- Dept. Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713AV Groningen, The Netherlands
| | - Gerian G H Prins
- Dept. Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713AV Groningen, The Netherlands
| | - Margot van der Zee
- Dept. Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713AV Groningen, The Netherlands
| | - Bente Gammelgaard
- Dept. of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Stefan Stürup
- Dept. of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Inge A M de Graaf
- Dept. Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713AV Groningen, The Netherlands
| | - Geny M M Groothuis
- Dept. Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713AV Groningen, The Netherlands
| | - Angela Casini
- Dept. Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713AV Groningen, The Netherlands and School of Chemistry, Cardiff University, Main Building, Park Place, CF103AT Cardiff, UK.
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46
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Jürgens S, Scalcon V, Estrada-Ortiz N, Folda A, Tonolo F, Jandl C, Browne DL, Rigobello MP, Kühn FE, Casini A. Exploring the C^N^C theme: Synthesis and biological properties of tridentate cyclometalated gold(III) complexes. Bioorg Med Chem 2017; 25:5452-5460. [DOI: 10.1016/j.bmc.2017.08.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 07/25/2017] [Accepted: 08/02/2017] [Indexed: 01/06/2023]
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Bai L, Gao C, Liu Q, Yu C, Zhang Z, Cai L, Yang B, Qian Y, Yang J, Liao X. Research progress in modern structure of platinum complexes. Eur J Med Chem 2017; 140:349-382. [PMID: 28985575 DOI: 10.1016/j.ejmech.2017.09.034] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 07/18/2017] [Accepted: 09/18/2017] [Indexed: 10/18/2022]
Abstract
Since the antitumor activity of cisplatin was discovered in 1967 by Rosenberg, platinum-based anticancer drugs have played an important role in chemotherapy in clinic. Nevertheless, platinum anticancer drugs also have caused severe side effects and cross drug resistance which limited their applications. Therefore, a significant amount of efforts have been devoted to developing new platinum-based anticancer agents with equal or higher antitumor activity but lower toxicity. Until now, a large number of platinum-based complexes have been prepared and extensively investigated in vitro and in vivo. Among them, some platinum-based complexes revealing excellent anticancer activity showed the potential to be developed as novel type of anticancer agents. In this account, we present such platinum-based anticancer complexes which owning various types of ligands, such as, amine carrier ligands, leaving groups, reactive molecule, steric hindrance groups, non-covalently binding platinum (II) complexes, Platinum(IV) complexes and polynuclear platinum complexes. Overall, platinum-based anticancer complexes reported recently years upon modern structure are emphasized.
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Affiliation(s)
- Linkui Bai
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Chuanzhu Gao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China.
| | - Qinghua Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Congtao Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Zhuxin Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Linxiang Cai
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Bo Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Yunxu Qian
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Jian Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Xiali Liao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
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48
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Estrada-Ortiz N, Guarra F, de Graaf IAM, Marchetti L, de Jager MH, Groothuis GMM, Gabbiani C, Casini A. Anticancer Gold N-Heterocyclic Carbene Complexes: A Comparative in vitro and ex vivo Study. ChemMedChem 2017; 12:1429-1435. [PMID: 28741878 DOI: 10.1002/cmdc.201700316] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/25/2017] [Indexed: 12/15/2022]
Abstract
A series of organometallic AuI N-heterocyclic carbene (NHC) complexes was synthesized and characterized for anticancer activity in four human cancer cell lines. The compounds' toxicity in healthy tissue was determined using precision-cut kidney slices (PCKS) as a tool to determine the potential selectivity of the gold complexes ex vivo. All evaluated compounds presented cytotoxic activity toward the cancer cells in the nano- or low micromolar range. The mixed AuI NHC complex, (tert-butylethynyl)-1,3-bis-(2,6-diisopropylphenyl)imidazol-2-ylidene gold(I), bearing an alkynyl moiety as ancillary ligand, showed high cytotoxicity in cancer cells in vitro, while being barely toxic in healthy rat kidney tissues. The obtained results open new perspectives toward the design of mixed NHC-alkynyl gold complexes for cancer therapy.
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Affiliation(s)
- Natalia Estrada-Ortiz
- Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands
| | - Federica Guarra
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi, 3, 56124, Pisa, Italy
| | - Inge A M de Graaf
- Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands
| | - Lorella Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi, 3, 56124, Pisa, Italy
| | - Marina H de Jager
- Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands
| | - Geny M M Groothuis
- Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands
| | - Chiara Gabbiani
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi, 3, 56124, Pisa, Italy
| | - Angela Casini
- Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands.,School of Chemistry, Cardiff University, Main Building, Park Place, CF103AT, Cardiff, UK
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Pérez SA, de Haro C, Vicente C, Donaire A, Zamora A, Zajac J, Kostrhunova H, Brabec V, Bautista D, Ruiz J. New Acridine Thiourea Gold(I) Anticancer Agents: Targeting the Nucleus and Inhibiting Vasculogenic Mimicry. ACS Chem Biol 2017; 12:1524-1537. [PMID: 28388047 DOI: 10.1021/acschembio.7b00090] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Two new 1-acridin-9-yl-3-methylthiourea Au(I) DNA intercalators [Au(ACRTU)2]Cl (2) and [Au(ACRTU) (PPh3)]PF6 (3) have been prepared. Both complexes were highly active in the human ovarian carcinoma cisplatin-sensitive A2780 cell line, exhibiting IC50 values in the submicromolar range. Compounds 2 and 3 are also cytotoxic toward different phenotypes of breast cancer cell lines MDA-MB-231 (triple negative), SK-BR-3 (HER2+, ERα-, and ERβ-), and MCF-7 (ER+). Both complexes induce apoptosis through activation of caspase-3 in vitro. While inhibition of some proteins (thiol-containing enzymes) seems to be the main mechanism of action for cytotoxic gold complexes, 2 and 3 present a DNA-dependent mechanism of action. They locate in the cell nucleus according to confocal microscopy and transmission electronic microscopy. The binding to DNA resulted to be via intercalation as shown by spectroscopic methods and viscometry, exhibiting a dose-dependent response on topoisomerase I mediated DNA unwinding. In addition, 2 and 3 exhibit potent antiangiogenic effects and are also able to inhibit vasculogenic mimicry of highly invasive MDA-MB-231 cells.
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Affiliation(s)
- Sergio A. Pérez
- Departamento
de Química Inorgánica, Facultad de Química, Biomedical
Research Institute of Murcia (IMIB-Arrixaca-UMU), Universidad de Murcia, E-30071 Murcia, Spain
| | - Concepción de Haro
- Departamento
de Química Inorgánica, Facultad de Química, Biomedical
Research Institute of Murcia (IMIB-Arrixaca-UMU), Universidad de Murcia, E-30071 Murcia, Spain
| | - Consuelo Vicente
- Departamento
de Química Inorgánica, Facultad de Química, Biomedical
Research Institute of Murcia (IMIB-Arrixaca-UMU), Universidad de Murcia, E-30071 Murcia, Spain
| | - Antonio Donaire
- Departamento
de Química Inorgánica, Facultad de Química, Biomedical
Research Institute of Murcia (IMIB-Arrixaca-UMU), Universidad de Murcia, E-30071 Murcia, Spain
| | - Ana Zamora
- Departamento
de Química Inorgánica, Facultad de Química, Biomedical
Research Institute of Murcia (IMIB-Arrixaca-UMU), Universidad de Murcia, E-30071 Murcia, Spain
| | - Juraj Zajac
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, 612 65 Brno, Czech Republic
- Department
of Biophysics, Faculty of Science, Palacky University, Slechtitelu
27, 783 71 Olomouc, Czech Republic
| | - Hana Kostrhunova
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, 612 65 Brno, Czech Republic
| | - Viktor Brabec
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, 612 65 Brno, Czech Republic
| | | | - José Ruiz
- Departamento
de Química Inorgánica, Facultad de Química, Biomedical
Research Institute of Murcia (IMIB-Arrixaca-UMU), Universidad de Murcia, E-30071 Murcia, Spain
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50
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Mitra R, Goddard R, Pörschke KR. 9,9-Difluorobispidine Analogues of Cisplatin, Carboplatin, and Oxaliplatin. Inorg Chem 2017; 56:6712-6724. [PMID: 28497971 DOI: 10.1021/acs.inorgchem.7b00836] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
As part of a comprehensive study of N-unsubstituted bispidines, the novel 9,9-difluorobispidine (D) has been synthesized. The compound crystallizes from pentane below 0 °C in the ordered-crystalline phase D-II and undergoes at 0-30 °C a stepwise endothermic phase transition to a dynamically disordered crystalline phase D-I; melting occurs at 227 °C. Single crystalline D-II has been subjected to X-ray structure analysis, revealing association of the molecules to form chains. Reaction of (1,5-hexadiene)PtCl2 with D affords {C7H10F2(NH)2}PtCl2 (D1), which can be converted by conventional routes to {C7H10F2(NH)2}Pt(cbdca)·5H2O (D2) and {C7H10F2(NH)2}Pt(C2O4) (D3). Compound D1 crystallizes solvent-free from water and is isomorphous to the solvent-free parent bispidine analogue (A1). The pentahydrate D2 is isomorphous to the bispidine and 9-oxabispidine homologues (A2 and C2), as shown by X-ray structure analyses. An increased polarity of the bispidine skeleton as a consequence of the high electronegativity of fluorine is seen as the reason for low cytotoxic potency of D1-D3.
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Affiliation(s)
- Raja Mitra
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Richard Goddard
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Klaus-Richard Pörschke
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
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