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Bellam R, Jaganyi D, Robinson RS. Heterodinuclear Ru-Pt Complexes Bridged with 2,3-Bis(pyridyl)pyrazinyl Ligands: Studies on Kinetics, Deoxyribonucleic Acid/Bovine Serum Albumin Binding and Cleavage, In Vitro Cytotoxicity, and In Vivo Toxicity on Zebrafish Embryo Activities. ACS OMEGA 2022; 7:26226-26245. [PMID: 35936428 PMCID: PMC9352169 DOI: 10.1021/acsomega.2c01845] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Di- and poly-homo/heteronuclear complexes have great potential as anticancer drugs. Here, we report their reactivity, deoxyribonucleic acid (DNA)/bovine serum albumin (BSA) binding and cleavage interactions, in vitro cytotoxicity, and in vivo zebrafish embryo toxicity of [(phen)2Ru(μ-L)PtCl2]2+ (phen = 1,10-phenanthroline and L = 2,3-bis(2-pyridyl)pyrazine, bpp, C1 ; 2,3-bis(2-pyridyl)quinoxaline, bpq, C2ial ; 2,3-bis(2-pyridyl)benzo[g]quinoxaline, bbq, C3 ) anticancer prodrugs. The substitution reactivity increases from C1 to C3 owing to an increase in the π-conjugation on the bridging chelate which facilitates π-back bonding. As a result, the electrophilicity index on the C3 complex increases than that on the complex C2 followed by C1 which leads to higher rates of substitution and thus the reactivity order follows C1 < C2 < C3 . The coordination of Ru at one end of each of the complexes enhances water solubility. Moreover, the charge addition of the two metal ions increases their reactivity toward substitution in addition to ensuring electrostatic interactions at target sites such as the DNA/BSA. Spectroscopic (UV-vis absorption and fluorescence quenching) titration and viscosity measurement results of the interactions of C1/2/3 with CT-DNA established the formation of stable, nonconvent C1/2/3 -DNA adducts with DNA most likely via the intercalative binding mode. Furthermore, studies with BSA showed a good binding affinity of these complexes owing to hydrophobic interactions with the coordinated ligands. The interactions of these complexes with DNA/BSA are in line with the reactivity trend, and all these experimental findings were further supported by molecular docking analysis. In vitro MTT cytotoxic activities on human breast cancer cell line MCF-7 revealed that all the complexes have high cytotoxicity activity (IC50 > 9 μM); furthermore, the selectivity index and SI values were higher (>3). Complex C3 showed the highest cytotoxicity with IC50 = 3.1 μM and SI value (5.55) against MCF7 cell lines and these values were comparable to those of the cisplatin (IC50 and SI values are 5.0 μM and 4.02, respectively). In vivo toxicological assessments on zebrafish embryos revealed that all the Ru-Pt complexes (CI/2/3 ) have poor embryo acute toxic effects over 96 h postfertilization, hpf with LC50 > 65.2 μM. The complex C3 has shown the lowest embryo toxicity (LC50 = 148.8 μM), which is comparable to that of commercial cisplatin (LC50 = 181.1 μM). Based on the cytotoxicity results, complexes C2 and C3 could be considered for further development as chemotherapeutic agents against MCF breast cancer cells.
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Affiliation(s)
- Rajesh Bellam
- School
of Chemistry and Physics, University of
KwaZulu-Natal, Private Bag X01, Scottsville 3209, Pietermaritzburg, South Africa
- Reseda
Lifesciences Pvt. Ltd., 11th Main, 46th Cross, 5th Block, Jayanagar, Bangalore 560041, Karnataka, India
| | - Deogratius Jaganyi
- School
of Pure and Applied Sciences, Mount Kenya
University, P. O. Box
342-01000, Thika, Kenya
- Department
of Chemistry, Durban University of Technology, P.O. Box 1334, Durban 4000, South Africa
| | - Ross Stuart Robinson
- School
of Chemistry and Physics, University of
KwaZulu-Natal, Private Bag X01, Scottsville 3209, Pietermaritzburg, South Africa
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2
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Understanding the role of flexible alkyl-α,ω-diamine linkers on the substitution behaviour of dinuclear trans-platinum(II) complexes: A kinetic and mechanistic study. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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Olusegun MA, Reddy D, Jaganyi D. An investigation of comparative substitution behavior of bifunctional
trans
‐platinum(II) complexes with symmetric and asymmetric alkylamine ligands. INT J CHEM KINET 2020. [DOI: 10.1002/kin.21407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Moses Ariyo Olusegun
- School of Chemistry and Physics University of KwaZulu‐Natal Scottsville Pietermaritzburg South Africa
| | - Desigan Reddy
- School of Chemistry and Physics University of KwaZulu‐Natal Scottsville Pietermaritzburg South Africa
| | - Deogratius Jaganyi
- School of Science, College of Science and Technology University of Rwanda Kigali Rwanda
- Department of Chemistry, Faculty of Applied Sciences Durban University of Technology Durban South Africa
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4
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Review of comparative studies of cytotoxic activities of Pt(II), Pd(II), Ru(II)/(III) and Au(III) complexes, their kinetics of ligand substitution reactions and DNA/BSA interactions. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119883] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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5
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Olusegun MA, Reddy D, Jaganyi D. A kinetic and mechanistic study of analogous bifunctional dialkylamine platinum( ii) complexes. NEW J CHEM 2020. [DOI: 10.1039/d0nj00108b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A comparative substitution behaviour of isomeric cis/trans-platinum(ii) complexes.
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Affiliation(s)
- Moses Ariyo Olusegun
- School of Chemistry and Physics
- University of KwaZulu-Natal
- Scottsville
- South Africa
| | - Desigan Reddy
- School of Chemistry and Physics
- University of KwaZulu-Natal
- Scottsville
- South Africa
| | - Deogratius Jaganyi
- School of Science
- College of Science and Technology
- University of Rwanda
- Kigali
- Rwanda
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6
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Mutua GK, Bellam R, Jaganyi D, Mambanda A. The role of N,N-chelate ligand on the reactivity of (η6-p-cymene)Ru(II) complexes: kinetics, DNA and protein interaction studies. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1676893] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Gershom Kyalo Mutua
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
- Department of Pure and Applied Chemistry, Masinde Muliro University of Science and Technology, Kakamega, Kenya
| | - Rajesh Bellam
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
| | - Deogratius Jaganyi
- School of Science, College of Science and Technology, University of Rwanda, Kigali, Rwanda
- Department of Chemistry, Faculty of Applied Sciences, Durban University of Technology, Durban, South Africa
| | - Allen Mambanda
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
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7
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Bellam R, Jaganyi D, Mambanda A, Robinson R, BalaKumaran MD. Seven membered chelate Pt(ii) complexes with 2,3-di(2-pyridyl)quinoxaline ligands: studies of substitution kinetics by sulfur donor nucleophiles, interactions with CT-DNA, BSA and in vitro cytotoxicity activities. RSC Adv 2019; 9:31877-31894. [PMID: 35530785 PMCID: PMC9072748 DOI: 10.1039/c9ra06488e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 09/18/2019] [Indexed: 11/21/2022] Open
Abstract
Dichloro platinum(ii) complexes coordinated with 2,3-di(2-pyridyl)quinoxaline ligands which form seven-membered chelates namely, bpqPtCl2, dmbpqPtCl2 and bbqPtCl2 (where bpq, dmbpq and bbq are 2,3-di(2-pyridyl)quinoxaline, 6,7-dimethyl-2,3-di(2-pyridyl)quinoxaline and 2,3-bis(2'pyriyl)benzo[g]quinoxaline, respectively) were synthesized, characterised and their respective hydrated product complexes namely, bpqPt(OH2)2 2+, dmbpqPt(OH2)2 2+ and bbqPt(OH2)2 2+ were prepared by chloride metathesis. The substitution kinetics of the aquated cations by thiourea nucleophiles indicated that the two aqua ligands are substituted simultaneously according to the rate law: k obs = k 2[Nu]. This is followed by a forced dechelation of the ligands from the Pt (II) to form Pt(Nu)4 2+ species. The dechelation step is considerably slow to be monitored reliably. The rate of substitution is marginally enhanced by introducing two methyl groups and by extending the π-conjugation on the bpq core ligand. The reactivity order increased as bpqPt(OH2)2 2+ < dmbpqPt(OH2)2 2+ < bbqPt(OH2)2 2+. Reactivity trends were well supported by theoretical computed DFT electronic descriptors. The interactions of the Pt(ii) complexes with CT-DNA and BSA were also examined spectroscopically in tris buffers at pH 7.2. Spectroscopic and viscosity measurements suggested strong associative interactions between the Pt(ii) complexes and CT-DNA, most likely through groove binding. In silico theoretical binding studies showed energetically stable poses through associative non-covalent interactions. In vitro MTT cytotoxicity IC50 values of the Pt(ii) complexes on human liver carcinoma cells (HepG2) cancer cell lines revealed bbqPtCl2 as the least active. The fluorescence staining assays revealed the morphological changes suggested early apoptotic induction as well as non-specific necrosis.
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Affiliation(s)
- Rajesh Bellam
- School of Chemistry and Physics, University of KwaZulu-Natal Private Bag X01, Scottsville Pietermaritzburg 3209 South Africa
| | - Deogratius Jaganyi
- School of Science, College of Science and Technology, University of Rwanda P.O. Box 4285 Kigali Rwanda
- Department of Chemistry, Durban University of Technology P.O. Box 1334 Durban 4000 South Africa
| | - Allen Mambanda
- School of Chemistry and Physics, University of KwaZulu-Natal Private Bag X01, Scottsville Pietermaritzburg 3209 South Africa
| | - Ross Robinson
- School of Chemistry and Physics, University of KwaZulu-Natal Private Bag X01, Scottsville Pietermaritzburg 3209 South Africa
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8
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Petrović B, Jovanović S, Puchta R, van Eldik R. Mechanistic insight on the chemistry of potential Pt antitumor agents as revealed by collaborative research performed in Kragujevac and Erlangen. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.06.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Ćoćić D, Jovanović S, Rajković S, Petrović B. Kinetics and mechanism of the substitution reactions of dinuclear platinum(II) complexes with important bio-molecules. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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10
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Ćoćić D, Jovanović S, Radisavljević S, Korzekwa J, Scheurer A, Puchta R, Baskić D, Todorović D, Popović S, Matić S, Petrović B. New monofunctional platinum(II) and palladium(II) complexes: Studies of the nucleophilic substitution reactions, DNA/BSA interaction, and cytotoxic activity. J Inorg Biochem 2018; 189:91-102. [PMID: 30243122 DOI: 10.1016/j.jinorgbio.2018.09.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/28/2018] [Accepted: 09/09/2018] [Indexed: 01/22/2023]
Abstract
Four new complexes [Pd(H2LtBu)Cl]Cl (Pd1), [Pt(H2LtBu)Cl]Cl (Pt1), [Pd(Me2LtBu)Cl]Cl (Pd2) and [Pt(Me2LtBu)Cl]Cl (Pt2) (where H2LtBu = 2,6-bis(5-(tert-butyl)-1H-pyrazol-3-yl)pyridine and Me2LtBu = 2,6-bis(5-(tert-butyl)-1-methyl-1H-pyrazol-3-yl)pyridine) were synthesized and characterized by elemental microanalysis, IR, 1H NMR and ESI-MS methods. The reactivity of complexes towards thiourea (Tu), l-methionine (l-Met), l-cysteine (l-Cys) and guanosine-5'-monophosphate (5'-GMP) was investigated. The obtained order was established as follows: Tu > l-Cys > l-Met > 5'-GMP. Complexes Pd1 and Pt1, that contain H2LtBu as chelator, showed higher reactivity towards biomolecules than those with Me2LtBu. The interaction of complexes with calf thymus DNA (CT-DNA) and bovine serum albumin (BSA) was studied by UV-Vis and fluorescence spectroscopy. The results have shown that complexes can bind to DNA exhibiting high binding constants (Kb = 104 M-1). Obtained results during the examination of competitive reaction with ethidium bromide (EB) showed that complexes can replace EB-bound DNA. High values of binding constants indicate good binding affinity of complexes towards BSA. We evaluated the stability differences between complexes based on terpy as well as H2LtBu/Me2LtBu by DFT calculations (B3LYP(CPCM)/LANL2DZp), showing that both tridentate ligand systems lead to complexes of similar stability. The results of biological testing showed that all complexes exert moderate to high selective cytotoxicity, inducing apoptosis and autophagy in HeLa and PANC-1 tumor cell lines. Pd1 exhibited the strongest cytotoxic effect. Finally, cell cycle analysis showed that in HeLa cells Pd1, Pd2 and Pt1 induced accumulation of cells in S phase, whereas in PANC-1 cells Pd2 and Pt1 induced G2/M cycle arrest and Pd1 induced G0/G1 arrest.
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Affiliation(s)
- Dušan Ćoćić
- University of Kragujevac, Faculty of Science, R. Domanovića 12, P. O. Box 60, 34000 Kragujevac, Serbia
| | - Snežana Jovanović
- University of Kragujevac, Faculty of Science, R. Domanovića 12, P. O. Box 60, 34000 Kragujevac, Serbia
| | - Snežana Radisavljević
- University of Kragujevac, Faculty of Science, R. Domanovića 12, P. O. Box 60, 34000 Kragujevac, Serbia
| | - Jana Korzekwa
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Andreas Scheurer
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Ralph Puchta
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Erlangen, Germany; Computer Chemistry Center, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Erlangen, Germany; ZISC (Zentralinstitut für Scientific Computing), Universität Erlangen-Nürnberg, Martensstrasse 5a, 91058 Erlangen, Germany
| | - Dejan Baskić
- University of Kragujevac, Faculty of Medical Sciences, Department of Microbiology and Immunology, Center for Molecular Medicine and Stem Cell Research, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Danijela Todorović
- University of Kragujevac, Faculty of Medical Sciences, Department of Genetics, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Suzana Popović
- University of Kragujevac, Faculty of Medical Sciences, Department of Microbiology and Immunology, Center for Molecular Medicine and Stem Cell Research, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Sanja Matić
- Doctoral Academic Study, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
| | - Biljana Petrović
- University of Kragujevac, Faculty of Science, R. Domanovića 12, P. O. Box 60, 34000 Kragujevac, Serbia.
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11
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Ćoćić D, Jovanović S, Nišavić M, Baskić D, Todorović D, Popović S, Bugarčić ŽD, Petrović B. New dinuclear palladium(II) complexes: Studies of the nucleophilic substitution reactions, DNA/BSA interactions and cytotoxic activity. J Inorg Biochem 2017; 175:67-79. [DOI: 10.1016/j.jinorgbio.2017.07.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 07/03/2017] [Accepted: 07/09/2017] [Indexed: 12/24/2022]
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12
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Asman PW. The role of annular nitrogen in tuning the reactivity of bifunctional platinum(II) complexes appended to pyridyl spacers; A kinetic and mechanistic investigation. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1371702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Panyako Wangoli Asman
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, South Africa
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13
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Arsenijevic M, Milovanovic M, Jovanovic S, Arsenijevic N, Markovic BS, Gazdic M, Volarevic V. In vitro and in vivo anti-tumor effects of selected platinum(IV) and dinuclear platinum(II) complexes against lung cancer cells. J Biol Inorg Chem 2017; 22:807-817. [PMID: 28421385 DOI: 10.1007/s00775-017-1459-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 04/09/2017] [Indexed: 12/18/2022]
Abstract
In the present study, cytotoxic effects of cisplatin, the most usually used chemotherapeutic agent, were compared with new designed platinum(IV) ([PtCl4(en)] (en = ethylenediamine) and [PtCl4(dach)]) (dach = (±)-trans-1,2-diaminocyclohexane) and platinum(II) complexes ([{trans-Pt(NH3)2Cl}2(μ-pyrazine)](ClO4)2 (Pt1), [{trans-Pt(NH3)2Cl}2(μ-4,4'-bipyridyl)](ClO4)2DMF(Pt2),[{trans-Pt(NH3)2Cl}2(μ-1,2-bis(4pyridyl)ethane)](ClO4)2 (Pt3)), in vitro and in vivo against human and murine lung cancer cells, to determine anti-tumor potential of newly synthesized platinum-based drugs in the therapy of lung cancer. Results obtained by MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide], Lactate dehydrogenase and Annexin V/Propidium Iodide assays showed that, among all tested complexes, [PtCl4(en)] had the highest cytotoxicity against human and murine lung carcinoma cells in vitro. [PtCl4(en)] showed significantly higher cytotoxicity then cisplatin in all tested concentrations, mainly by inducing apoptosis in lung cancer cells. [PtCl4(en)] was well tolerated in vivo. Clinical signs of [PtCl4(en)]-induced toxicity, such as changes in food, water consumption or body weight, nephrotoxicity or hepatotoxicity was not observed in [PtCl4(en)]-treated mice. [PtCl4(en)] managed to increase presence of CD45+ leukocytes, including F4/80+ macrophages, CD11c+ dendritic cells, CD4+ helper and CD8+ cytotoxic T cells (CTLs) in the lungs, cytotoxic NK, NKT and CTLs in the spleens of tumor bearing mice, resulting with reduction of metastatic lesions in the lungs, indicating its potential to stimulate anti-tumor immune response in vivo. Due to its anti-tumor cytotoxicity, biocompatibility, and potential for stimulation of anti-tumor immune response, [PtCl4(en)] may be a good candidate for further testing in the field of medicinal chemistry.
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Affiliation(s)
- Milos Arsenijevic
- Department of Thoracic Surgery, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia.
| | - Marija Milovanovic
- Department of Microbiology and Immunology, Faculty of Medical Sciences, Center for Molecular Medicine and Stem Cell Research, University of Kragujevac, Kragujevac, Serbia
| | - Snezana Jovanovic
- Department of Chemistry, Faculty of Science, University of Kragujevac, Kragujevac, Serbia
| | - Natalija Arsenijevic
- Department for Preventive and Pediatric Dentistry, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Bojana Simovic Markovic
- Department of Microbiology and Immunology, Faculty of Medical Sciences, Center for Molecular Medicine and Stem Cell Research, University of Kragujevac, Kragujevac, Serbia
| | - Marina Gazdic
- Department of Genetics, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Vladislav Volarevic
- Department of Microbiology and Immunology, Faculty of Medical Sciences, Center for Molecular Medicine and Stem Cell Research, University of Kragujevac, Kragujevac, Serbia
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14
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Jovanović S, Puchta R, Klisurić O, Bugarčić ŽD. Crystal structure of K[PtCl 3(caffeine)] and its interactions with important nitrogen-donor ligands. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1146257] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Snežana Jovanović
- Faculty of Science, Department of Chemistry, University of Kragujevac, Kragujevac, Serbia
| | - Ralph Puchta
- Department of Chemistry and Pharmacy, Institute for Inorganic Chemistry, University of Erlangen-Nürnberg, Erlangen, Germany
- Computer Chemistry Center, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Olivera Klisurić
- Faculty of Sciences, Department of Physics, University of Novi Sad, Novi sad, Serbia
| | - Živadin D. Bugarčić
- Faculty of Science, Department of Chemistry, University of Kragujevac, Kragujevac, Serbia
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15
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Jovanović S, Obrenčević K, Bugarčić ŽD, Popović I, Žakula J, Petrović B. New bimetallic palladium(ii) and platinum(ii) complexes: studies of the nucleophilic substitution reactions, interactions with CT-DNA, bovine serum albumin and cytotoxic activity. Dalton Trans 2016; 45:12444-57. [DOI: 10.1039/c6dt02226j] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Nucleophilic substitution reactions, interactions with CT-DNA, bovine serum albumin and cytotoxic activity of new bimetallic Pt(ii) and Pd(ii) complexes.
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Affiliation(s)
| | | | | | - Iva Popović
- Institute of Nuclear Sciences “Vinča”
- University of Belgrade
- 11001 Belgrade
- Serbia
| | - Jelena Žakula
- Institute of Nuclear Sciences “Vinča”
- University of Belgrade
- 11001 Belgrade
- Serbia
| | - Biljana Petrović
- Faculty of Science
- University of Kragujevac
- 34000 Kragujevac
- Serbia
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16
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Bogojeski J, Volbeda J, Bugarčić ŽD, Freytag M, Tamm M. Platinum(ii) complexes with hybrid amine-imidazolin-2-imine ligands and their reactivity toward bio-molecules. NEW J CHEM 2016. [DOI: 10.1039/c5nj03360h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Two new Pt(ii) complexes with imidazolin-2-imines as ancillary ligands were synthesized and characterized and their reactivity toward bio-molecules was tested.
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Affiliation(s)
- Jovana Bogojeski
- Faculty of Science
- University of Kragujevac
- 34000 Kragujevac
- Serbia
| | - Jeroen Volbeda
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| | | | - Matthias Freytag
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
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17
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Kinunda G, Jaganyi D. Kinetic and mechanistic studies of cisplatin analogues bearing 2,2′-dipyridylalkylamine ligands. TRANSIT METAL CHEM 2015. [DOI: 10.1007/s11243-015-0015-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Jovanović S, Petrović B, Petković M, Bugarčić ŽD. Kinetics and mechanism of substitution reactions of the new bimetallic [{PdCl(bipy)}{μ-(NH2(CH2)6H2N)}{PtCl(bipy)}]Cl(ClO4) complex with important bio-molecules. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.09.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Shaira A, Jaganyi D. A kinetic and mechanistic study of dinuclear Pt(II) 2,2′:6′,2″-terpyridine compounds bridged with polyethyleneglycol ether flexible linkers. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1064114] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- A. Shaira
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, South Africa
| | - D. Jaganyi
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, South Africa
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20
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Jovanović S, Bogojeski J, Petković M, Bugarčić ŽD. Interactions of nitrogen-donor bio-molecules with dinuclear platinum(II) complexes. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1048240] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Snežana Jovanović
- Faculty of Science, Department of Chemistry, University of Kragujevac, Kragujevac, Serbia
| | - Jovana Bogojeski
- Faculty of Science, Department of Chemistry, University of Kragujevac, Kragujevac, Serbia
| | - Marijana Petković
- Department of Physical Chemistry, Institute of Nuclear Sciences ‘‘Vinča”, University of Belgrade, Belgrade, Serbia
| | - Živadin D. Bugarčić
- Faculty of Science, Department of Chemistry, University of Kragujevac, Kragujevac, Serbia
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21
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Selimović E, Bogojeski J. The Substitution Reactions of the Small Biomolecules and Dinuclear Pt(II) Complexes with Alkanediamine Linker. INT J CHEM KINET 2015. [DOI: 10.1002/kin.20911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Enisa Selimović
- Department of Chemical-Technological Sciences; State University of Novi Pazar; Vuka Karadžića bb; 36300 Novi Pazar Serbia
| | - Jovana Bogojeski
- Department of Chemistry; Faculty of Science; University of Kragujevac; R. Domanovića 12, P. O. Box 60 34000 Kragujevac Serbia
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22
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Bogojeski J, Volbeda J, Freytag M, Tamm M, Bugarčić ŽD. Palladium(ii) complexes with highly basic imidazolin-2-imines and their reactivity toward small bio-molecules. Dalton Trans 2015; 44:17346-59. [DOI: 10.1039/c5dt02307f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pd(ii) complexes with chelating imidazolin-2-imine ligands were synthesized, and the pKa values and reactivity of these complexes were investigated.
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Affiliation(s)
- Jovana Bogojeski
- Department of Chemistry
- Faculty of Science
- University of Kragujevac
- 34000 Kragujevac
- Serbia
| | - Jeroen Volbeda
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| | - Matthias Freytag
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| | - Živadin D. Bugarčić
- Department of Chemistry
- Faculty of Science
- University of Kragujevac
- 34000 Kragujevac
- Serbia
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23
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Substitution reactions of dinuclear platinum(II) complexes with some nitrogen nucleophiles. TRANSIT METAL CHEM 2014. [DOI: 10.1007/s11243-014-9899-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Kinunda G, Jaganyi D. A kinetic study of aqua ligand substitution in dinuclear Pt(II) complexes containing four non-coplanar pyridine ligands. TRANSIT METAL CHEM 2014. [DOI: 10.1007/s11243-014-9879-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Angurell I, Ferrer M, Gutiérrez A, Martínez M, Rocamora M, Rodríguez L, Rossell O, Lorenz Y, Engeser M. Kinetico-Mechanistic Insights on the Assembling Dynamics of Allyl-Cornered Metallacycles: The PtNpyBond is the Keystone. Chemistry 2014; 20:14473-87. [DOI: 10.1002/chem.201403467] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Indexed: 11/09/2022]
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26
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Gold(III) complexes with monodentate coordinated diazines: An evidence for strong electron-withdrawing effect of Au(III) ion. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.05.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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27
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Detailed mechanistic study on ligand substitution reactions in dinuclear platinum(II) complexes: effect of alkanediamine linker. TRANSIT METAL CHEM 2014. [DOI: 10.1007/s11243-014-9815-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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28
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Basallote MG, Martínez M, Vázquez M. The role of hydroxo-bridged dinuclear species and the influence of “innocent” buffers in the reactivity of cis-[CoIII(cyclen)(H2O)2]3+ and [CoIII(tren)(H2O)2]3+ complexes with biologically relevant ligands at physiological pH. Dalton Trans 2014; 43:11048-58. [DOI: 10.1039/c4dt01003e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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29
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Mohamed MM, Weber I, Puchta R, Shoukry MM, van Eldik R. Amine-bridged binuclear palladium(II) complexes with inosine. Equilibrium studies and DFT calculations. J COORD CHEM 2013. [DOI: 10.1080/00958972.2013.840367] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Mahmoud M.A. Mohamed
- Faculty of Science, Department of Chemistry, Cairo University, Cairo, Egypt
- Faculty of Education, Department of Sciences and Mathematics, Asiut University, Asiut, Egypt
| | - Immo Weber
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Ralph Puchta
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Erlangen, Germany
- Department of Chemistry and Pharmacy, Computer Chemistry Center, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Mohamed M. Shoukry
- Faculty of Science, Department of Chemistry, Cairo University, Cairo, Egypt
- Faculty of Science, Department of Chemistry, Islamic University, Madinah, Kingdom of Saudi Arabia
| | - Rudi van Eldik
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Erlangen, Germany
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Ongoma PO, Jaganyi D. Bridge-Splitting Reactions of Platinum(II) Complexes with Parametalated Pyridine Spacer Groups: A Kinetic and Mechanistic Study. INT J CHEM KINET 2013. [DOI: 10.1002/kin.20806] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Peter O. Ongoma
- School of Chemistry and Physics; University of KwaZulu-Natal; Pietermaritzburg 3209 South Africa
| | - Deogratius Jaganyi
- School of Chemistry and Physics; University of KwaZulu-Natal; Pietermaritzburg 3209 South Africa
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31
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Substitution reactions in dinuclear platinum(II) complexes: an evaluation of the influence of the diazine-bridging ligand on reactivity. TRANSIT METAL CHEM 2013. [DOI: 10.1007/s11243-013-9726-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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Ongoma PO, Jaganyi D. Mechanistic elucidation of linker and ancillary ligand substitution reactions in Pt(ii) dinuclear complexes. Dalton Trans 2013; 42:2724-34. [DOI: 10.1039/c2dt31956j] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Arsenijević M, Milovanović M, Volarević V, Čanović D, Arsenijević N, Soldatović T, Jovanović S, Bugarčić ŽD. Cytotoxic properties of platinum(IV) and dinuclear platinum(II) complexes and their ligand substitution reactions with guanosine-5′-monophosphate. TRANSIT METAL CHEM 2012. [DOI: 10.1007/s11243-012-9613-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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