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Golestanifar F, Garkani-Nejad Z, Maghsoudi S. Development of a sensitive ds-DNA/Au NPs/ PGE biosensor for determination of Buprenorphine using electrochemical and molecular dynamic simulation investigation. Bioelectrochemistry 2024; 160:108783. [PMID: 39079286 DOI: 10.1016/j.bioelechem.2024.108783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 07/20/2024] [Accepted: 07/24/2024] [Indexed: 09/15/2024]
Abstract
A sensitive electrochemical DNA biosensor has been developed for the detection of Buprenorphine (Bu), a narcotic pain reliever. To achieve this, double-stranded DNA (ds-DNA) was immobilized on a pencil graphite electrode that was modified with gold nanoparticles (Au NPs/PGE). The gold nanoparticles enhanced the performance of the DNA biosensor. The constructed ds-DNA/Au NPs/ PGE exhibited a linear detection range spanning from 0.05 to 100 μM with an impressive detection limit of 20 nM for Bu detection. Additionally, the DNA biosensor demonstrated good response in real samples evaluations. Finally, the interaction between carbon and gold atoms with DNA was confirmed through molecular dynamics simulation, while the interaction between DNA and the Bu drug was confirmed through molecular docking method. In conclusion, the electrochemical DNA biosensor presented in this study demonstrates exceptional sensitivity and reliability in the detection of buprenorphine. The incorporation of gold nanoparticles, as well as the use of molecular dynamics simulations and docking methods, contributes to a comprehensive understanding of the interactions involved in this detection process.
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Affiliation(s)
- Fereshteh Golestanifar
- Chemistry Department, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran; Young Researchers Society, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Zahra Garkani-Nejad
- Chemistry Department, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Shahab Maghsoudi
- Chemistry Department, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran
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Tsaulwayo N, Omondi RO, Vijayan P, Sibuyi NRS, Meyer MD, Meyer M, Ojwach SO. Heterocyclic (pyrazine)carboxamide Ru(ii) complexes: structural, experimental and theoretical studies of interactions with biomolecules and cytotoxicity. RSC Adv 2024; 14:8322-8330. [PMID: 38567259 PMCID: PMC10985535 DOI: 10.1039/d4ra00525b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 03/05/2024] [Indexed: 04/04/2024] Open
Abstract
Treatments of N-(1H-benzo[d]imidazol-2-yl)pyrazine-2-carboxamide (HL1) and N-(benzo[d]thiazol-2-yl)pyrazine-2-carboxamide carboxamide ligands (HL2) with [Ru(p-cymene)Cl2]2 and [Ru(PPh3)3Cl2] precursors afforded the respective Ru(ii) complexes [Ru(L1)(p-cymene)Cl] (Ru1), [Ru(L2)(p-cymene)Cl] (Ru2), [Ru(L1)(PPh3)2Cl] (Ru3), and [Ru(L2)(PPh3)2Cl] (Ru4). These complexes were characterized by NMR, FT-IR spectroscopies, mass spectrometry, elemental analyses, and crystal X-ray crystallography for Ru2. The molecular structure of complex Ru2 contains one mono-anionic bidentate bound ligand and display pseudo-octahedral piano stool geometry around the Ru(ii) atom. The interactions with calf thymus DNA (CT-DNA) and bovine serum albumin (BSA) were investigated by spectroscopic techniques. The experimental binding studies suggest that complexes Ru1-Ru4 interact with DNA, primarily through minor groove binding, as supported by molecular docking results. Additionally, these complexes exhibit strong quenching of the fluorescence of tryptophan residues in BSA, displaying static quenching. The in vitro cytotoxicity studies of compounds Ru1-Ru4 were assessed in cancer cell lines (A549, PC-3, HT-29, Caco-2, and HeLa), as well as a non-cancer line (KMST-6). Compounds Ru1 and Ru2 exhibited superior cytotoxicity compared to Ru3 and Ru4. The in vitro cytotoxicity and selectivity of compounds Ru1 and Ru2 against A549, PC-3, and Caco-2 cell lines surpassed that of cisplatin.
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Affiliation(s)
- Nokwanda Tsaulwayo
- School of Chemistry and Physics, University of KwaZulu-Natal Private Bag X01, Scottsville Pietermaritzburg 3209 South Africa
| | - Reinner O Omondi
- School of Chemistry and Physics, University of KwaZulu-Natal Private Bag X01, Scottsville Pietermaritzburg 3209 South Africa
| | - Paranthaman Vijayan
- School of Chemistry and Physics, University of KwaZulu-Natal Private Bag X01, Scottsville Pietermaritzburg 3209 South Africa
| | - Nicole R S Sibuyi
- Department of Science and Innovation/Mintek Nanotechnology Innovation Centre, Biolabels Research Node, Department of Biotechnology, University of the Western Cape Bag X17, Bellville 7535 Cape Town South Africa
| | - Miché D Meyer
- Department of Science and Innovation/Mintek Nanotechnology Innovation Centre, Biolabels Research Node, Department of Biotechnology, University of the Western Cape Bag X17, Bellville 7535 Cape Town South Africa
| | - Mervin Meyer
- Department of Science and Innovation/Mintek Nanotechnology Innovation Centre, Biolabels Research Node, Department of Biotechnology, University of the Western Cape Bag X17, Bellville 7535 Cape Town South Africa
| | - Stephen O Ojwach
- School of Chemistry and Physics, University of KwaZulu-Natal Private Bag X01, Scottsville Pietermaritzburg 3209 South Africa
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Kanyora AK, Omondi RO, Ongoma P, Omolo JO, Welsh A, Prince S, Gichumbi J, Mambanda A, Smith GS. Mononuclear η 6-arene ruthenium(II) complexes with pyrazolyl-pyridazine ligands: synthesis, CT-DNA binding, reactivity towards glutathione, and cytotoxicity. J Biol Inorg Chem 2024; 29:251-264. [PMID: 38494554 DOI: 10.1007/s00775-024-02043-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 01/08/2024] [Indexed: 03/19/2024]
Abstract
Organometallic η6-arene ruthenium(II) complexes with 3-chloro-6-(1H-pyrazol-1-yl)pyridazine (Ru1, Ru2, and Ru5) and 3-chloro-6-(3,5-dimethyl-1H-pyrazol-1-yl)pyridazine (Ru3-4) N,N' heterocyclic and η6-arene (cymene (Ru1-4) or toluene (Ru 5)) have been synthesized. The ruthenium(II) complexes have common "three-legged piano-stool" pseudo-octahedral structures known for half-sandwich complexes. Evolution of their UV-Visible absorption spectra in PBS buffer or DMSO over 24 h confirmed their good solvolysis stability. Titrations of the complexes with the calf thymus DNA (CT-DNA) were monitored using UV-Visible absorption and fluorescence spectroscopies. The complexes interact moderately with CT-DNA and their binding constants are in the order of 104 M-1. Competitive binding of the complexes to a DNA-Hoechst 33,258 depicted competitive displacement of Hoechst from DNA's minor grooves. These complexes bind to glutathione forming GSH-adducts through S coordination by replacement of a halide, with the iodo-analogues having higher binding constants than the chloro-complexes. Cyclic voltammograms of the complexes exhibited one electron-transfer quasi-reversible process. Trends in the molecular docking data of Ru1-5/DNA were similar to those for DNA binding constants. Of the five, only Ru1, Ru3 and Ru5 showed some activity (moderate) against the MCF-7 breast cancer cells with IC50 values in the range of 59.2-39.9 for which Ru5 was the most active. However, the more difficult-to-treat cell line, MDA-MB 231 cell was recalcitrant to the treatment by these complexes.
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Affiliation(s)
- Amos K Kanyora
- Department of Chemistry, Egerton University, P.O Box 536-20115, Egerton, Kenya.
| | - Reinner O Omondi
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa
| | - Peter Ongoma
- Department of Chemistry, Egerton University, P.O Box 536-20115, Egerton, Kenya
| | - Josiah O Omolo
- Department of Chemistry, Egerton University, P.O Box 536-20115, Egerton, Kenya
| | - Athi Welsh
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa
| | - Sharon Prince
- Department of Human Biology, Faculty of Health Science, Observatory, University of Cape Town, Cape Town, 7925, South Africa
| | - Joel Gichumbi
- Department of Physical Sciences, Chuka University, P.O. Box 109-60400, Chuka, Kenya
| | - Allen Mambanda
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg, 3209, South Africa
| | - Gregory S Smith
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa
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Polaczek J, Kieca K, Oszajca M, Impert O, Katafias A, Chatterjee D, Ćoćić D, Puchta R, Stochel G, Hubbard CD, van Eldik R. A Personal Account on Inorganic Reaction Mechanisms. CHEM REC 2023:e202300278. [PMID: 37821418 DOI: 10.1002/tcr.202300278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/22/2023] [Indexed: 10/13/2023]
Abstract
The presented Review is focused on the latest research in the field of inorganic chemistry performed by the van Eldik group and his collaborators. The first part of the manuscript concentrates on the interaction of nitric oxide and its derivatives with biologically important compounds. We summarized mechanistic information on the interaction between model porphyrin systems (microperoxidase) and NO as well as the recent studies on the formation of nitrosylcobalamin (CblNO). The following sections cover the characterization of the Ru(II)/Ru(III) mixed-valence ion-pair complexes, including Ru(II)/Ru(III)(edta) complexes. The last part concerns the latest mechanistic information on the DFT techniques applications. Each section presents the most important results with the mechanistic interpretations.
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Affiliation(s)
- Justyna Polaczek
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Konrad Kieca
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
- Jagiellonian University, Doctoral School of Exact and Natural Sciences, Kraków, 30-348, Krakow, Poland
| | - Maria Oszajca
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Olga Impert
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100, Torun, Poland
| | - Anna Katafias
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100, Torun, Poland
| | - Debabrata Chatterjee
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100, Torun, Poland
- Vice-Chancellor's Research Group, Zoology Department, University of Burdwan, Burdwan, 713104, India
| | - Dušan Ćoćić
- University of Kragujevac, Faculty of Science, Department of Chemistry, Radoja Domanovića 12, P. O. Box 60, 34000, Kragujevac, Serbia
| | - Ralph Puchta
- Department of Chemistry and Pharmacy, University of Erlangen-Nuremberg, Egerlandstrasse 1, 91058, Erlangen, Germany
- Central Institute for Scientific Computing (CISC), University of Erlangen-Nuremberg, Martensstr. 5a, 91058, Erlangen, Germany
- Computer Chemistry Center, Department of Chemistry and Pharmacy, University of Erlangen-Nuremberg, Nägelsbachstr. 25, 91052, Erlangen, Germany
| | - Grażyna Stochel
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Colin D Hubbard
- Department of Chemistry, University of New Hampshire, Durham, 03824, USA
| | - Rudi van Eldik
- Department of Chemistry and Pharmacy, University of Erlangen-Nuremberg, Egerlandstrasse 1, 91058, Erlangen, Germany
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100, Torun, Poland
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Thanoon RD, Ibadi EA, Ahmad I, Alamir HTA, Alwan M, Hashim FS, Khaled DW, Alkhafaji AT, Asiri M, Alsaalamy A. Experimental and theoretical investigations of Erbium complex: DNA/BSA interaction, anticancer and antibacterial studies. Front Chem 2023; 11:1266520. [PMID: 37701051 PMCID: PMC10493310 DOI: 10.3389/fchem.2023.1266520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 08/14/2023] [Indexed: 09/14/2023] Open
Abstract
To assess the biological potential of an Er complex that contains a 2,2'-bipyridine ligand, various techniques such as multispectral and molecular modeling procedures were utilized to examine its DNA-binding ability, BSA binding affinity, antimicrobial effects, and anticancer properties. By analyzing fluorescent information and employing the vant' Hoff equation, important parameters such as the innate docking coefficient (Kb), Stern-Volmer coefficient (KSV), and thermodynamic properties including modifications in liberated energy (ΔG°), enthalpy (∆H°), and entropy (∆S°) were determined. The trial findings suggest that the compound can bind to DNA, primarily through groove binding. Additionally, the engagement between the Er compound and the protein BSA was examined using emission spectroscopy technique, revealing a powerful binding affinity between the compound and BSA. The Er complex binds to BSA primarily via hydrogen links and van der Waals forces, as indicated by the adverse values of ΔH° and ∆S°. Through a static quenching process, the complex significantly reduces the intrinsic fluorescence of BSA. Molecular binding calculations and rivalrous binding trials confirm that this compound dock to hydrophobic remains found in site III of BSA. Additionally, the Er complex demonstrates promising results in terms of its anticancer and antimicrobial activities based on screening tests.
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Affiliation(s)
- Raid D. Thanoon
- Department of Medical Biochemical Analysis, Cihan University-Erbil, Kurdistan Region, Iraq
| | - Emam Atiyah Ibadi
- Department of Pharmacy, Al-Mustaqbal University College, Babylon, Iraq
| | - Irfan Ahmad
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | | | - Marim Alwan
- Medical Lab Techniques, College of Medical Technology, Al-Farahidi University, Baghdad, Iraq
| | - Furqan S. Hashim
- Department of Medical Laboratories Technology, Al-Nisour University College, Baghdad, Iraq
| | | | | | - Mohammed Asiri
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Ali Alsaalamy
- College of Technical Engineering, Imam Ja’afar Al‐Sadiq University, Baghdad, Iraq
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Kumar Tarai S, Mandal S, Bhaduri R, Pan A, Biswas P, Bhattacharjee A, Moi SC. Bioactivity, molecular docking and anticancer behavior of pyrrolidine based Pt(II) complexes: Their kinetics, DNA and BSA binding study by spectroscopic methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 287:122059. [PMID: 36410178 DOI: 10.1016/j.saa.2022.122059] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/29/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
The complex [Pt(AEP)Cl2]; C-1 (where, AEP = 1-(2-Aminoethyl) pyrrolidine) and its hydrolyzed diaqua form cis-[Pt(AEP)(H2O)2]2+; C-2 were synthesized for their bioactivity and in vitro kinetic study with bioactive thiol group (-SH) containing ligands (like; L- cysteine and N-ac-L- cysteine) for their biological importance for 'drug reservoir' activity. The Thermal Gravimetric Analysis (TGA) was executed to confirm about the weight loss due to coordinated water molecules at high temperature range. At pH 4.0, the substitution behavior of C-2 with the thiols was studied in pseudo-first order reaction condition. The interaction mechanism of thiols with complex C-2 to their corresponding thiol substituted C-3 [Pt(AEP)(L-cys)] and C-4 [Pt(AEP)(N-ac-L-cys)] (where L-cys = L-cysteine and N-ac-L-cys = N-ac-L- cysteine) were proposed from their thermodynamical activation parameters (ΔH≠ and ΔS≠), which were obtained from Eyring equation. DNA and BSA binding activity of the complexes C-1 to C-4 were investigated by gel electrophoresis technique, spectroscopic titration and viscosity methods. The binding activity of the complexes with DNA and BSA was evaluated using a theoretical approach molecular docking study. The drug-like nature of the complexes is supported by the prediction of activity spectra for substance (PASS) from 2D structure of the Pt(II) complexes. Structural optimization, HOMO-LUMO energy calculation, Molecular electrostatic potential surface, NBO and TD-DFT calculation were executed by using density functional theory (DFT) with Gaussian 09 software package to pre-assessment of biological activity of the complexes. DFT-based descriptors were determined from the HOMO-LUMA energy to be related with the ability of binding affinity of Pt(II) complexes towards DNA and BSA to the formation of their corresponding adducts. The anticancer property of the design complexes were examined on HCT116 (colorectal carcinoma) cancer cell lines and as well as human normal cell NKE (Normal Kidney Epithelial) and compared with the recognised anticancer drug cisplatin. The Reactive Oxygen Species (ROS) production was assessed by DCFDA assay in presence of the Pt(II) complexes.
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Affiliation(s)
- Swarup Kumar Tarai
- Department of Chemistry, National Institute of Technology Durgapur, Durgapur 713209, West Bengal, India
| | - Saikat Mandal
- Department of Chemistry, National Institute of Technology Durgapur, Durgapur 713209, West Bengal, India
| | - Rituparna Bhaduri
- Department of Chemistry, National Institute of Technology Durgapur, Durgapur 713209, West Bengal, India
| | - Angana Pan
- Department of Chemistry, National Institute of Technology Durgapur, Durgapur 713209, West Bengal, India
| | - Pritam Biswas
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur 713209, West Bengal, India
| | - Ashish Bhattacharjee
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur 713209, West Bengal, India
| | - Sankar Ch Moi
- Department of Chemistry, National Institute of Technology Durgapur, Durgapur 713209, West Bengal, India.
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Hong H, Lu Y, Zhu X, Wu Q, Jin L, Jin Z, Wei X, Ma G, Yu H. Cytotoxicity of nitrogenous disinfection byproducts: A combined experimental and computational study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159273. [PMID: 36209887 DOI: 10.1016/j.scitotenv.2022.159273] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/02/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Nitrogenous disinfection byproducts (N-DBPs), such as halocetamides (HAcAms), haloacetonitriles (HANs) and halonitromethanes (HNMs), are emerging DBPs in drinking water. They are more toxic than currently regulated DBPs, attracting more attention to their toxic effects and mechanism. In this study, human embryonic kidney (HEK) 293T cells were employed to explore the cytotoxicity of 29 N-DBPs. The influence of molecular structures and different halogenations on cytotoxicity has been comparatively analyzed. As toxicity is the downstream of chemico-biological interactions, the thiol reactivity of 29 N-DBPs has thus been evaluated by using glutathione (GSH) as a model nucleophile, which is the most prevalent cellular thiol and acts as an antioxidant to protect cells by detoxifying electrophilic compounds. Results show that the cytotoxicity of N-DBPs follows by the order of HAcAms > HANs > HNMs, which is different from their reactivity with GSH (the median of kGSH ranks as HNMs > HAcAms > HANs). However, a significant correlation (p < 0.001) between log kGSH and log IC50 (concentration causing 50% inhibition) has been respectively observed for HAcAms and HANs subset and HNMs subset, indicating such chemical reaction is a probable trigger for these DBPs to result in cytotoxicity. Finally, two separate quantitative structure - activity relationship (QSAR) models based on HANs & HAcAms subset and HNMs subset have been developed for estimating IC50 values. The good statistical performance makes the models possible to quickly and accurately predict IC50 values of other N-DBPs, providing basic data for their health risk assessment and greatly reducing in vivo and in vitro experiments.
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Affiliation(s)
- Huachang Hong
- College of Geography and Environmental Sciences, Zhejiang Normal University, Yingbin Avenue 688, 321004 Jinhua, China
| | - Yuchen Lu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Yingbin Avenue 688, 321004 Jinhua, China
| | - Xiaoyan Zhu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Yingbin Avenue 688, 321004 Jinhua, China
| | - Qiang Wu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Yingbin Avenue 688, 321004 Jinhua, China
| | - Lingmin Jin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Yingbin Avenue 688, 321004 Jinhua, China
| | - Zhigang Jin
- College of Chemistry and Life Sciences, Zhejiang Normal University, Yingbin Avenue 688, 321004 Jinhua, China
| | - Xiaoxuan Wei
- College of Geography and Environmental Sciences, Zhejiang Normal University, Yingbin Avenue 688, 321004 Jinhua, China
| | - Guangcai Ma
- College of Geography and Environmental Sciences, Zhejiang Normal University, Yingbin Avenue 688, 321004 Jinhua, China
| | - Haiying Yu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Yingbin Avenue 688, 321004 Jinhua, China.
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Mohebbi Jahromi Z, Asadi Z, Eigner V, Dusek M, Rastegari B. A new phenoxo-bridged dicopper Schiff base Complex: Synthesis, Crystal Structure, DNA/BSA Interaction, Cytotoxicity Assay and Catecholase Activity. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Luikham S, Mavani A, Bhattacharyya J. Deciphering binding affinity, energetics, and base specificity of plant alkaloid Harmane with AT & GC hairpin duplex DNA. LUMINESCENCE 2022; 37:691-701. [DOI: 10.1002/bio.4210] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/01/2022] [Accepted: 02/08/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Soching Luikham
- Department of Chemistry National Institute of Technology Nagaland Chumukedima Dimapur Nagaland India
| | - A. Mavani
- Department of Chemistry National Institute of Technology Nagaland Chumukedima Dimapur Nagaland India
| | - Jhimli Bhattacharyya
- Department of Chemistry National Institute of Technology Nagaland Chumukedima Dimapur Nagaland India
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de Almeida PSVB, de Arruda HJ, Sousa GLS, Ribeiro FV, de Azevedo-França JA, Ferreira LA, Guedes GP, Silva H, Kummerle AE, Neves AP. Cytotoxicity evaluation and DNA interaction of Ru II-bipy complexes containing coumarin-based ligands. Dalton Trans 2021; 50:14908-14919. [PMID: 34609400 DOI: 10.1039/d1dt01567b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Although there are various treatment options for cancer, this disease still has caused an increasing number of deaths, demanding more efficient, selective and less harmful drugs. Several classes of ruthenium compounds have been investigated as metallodrugs for cancer, mainly after the entry of imidazolH [trans-RuCl4-(DMSO-S)(imidazole)] (NAMI-A) and indazolH [trans-RuCl4-(Indazol)2] (KP1019) in clinical trials. In this sense, RuII complexes with general formula [Ru(L1-3)(bipy)2]PF6 (1-3) (L1 = ethyl 3-(6-methyl-2-oxo-2H-chromen-3-yl)-3-oxopropanoate, L2 = ethyl 3-(7-(diethylamino)-2-oxo-2H-chromen-3-yl)-3-oxopropanoate, L3 = ethyl 3-(8-methoxy-2-oxo-2H-chromen-3-yl)-3-oxopropanoate and bipy = bipyridine) have been synthesized. The crystal structure of 2 revealed that the RuII atom lies on a distorted octahedral geometry with the deprotonated ligand (L2-) coordinated through β-ketoester group oxygen atoms. In vitro cytotoxic activity of the compounds was evaluated against 4T1 (murine mammary carcinoma) and B16-F10 (murine metastatic melanoma) tumor cells, and the non-tumor cell line BHK-21 (baby hamster kidney). Coordination with RuII resulted in expressive enhancement of cytotoxic activity. The precursors were inactive below 100 μM and the final RuII complexes (1-3) showed IC50 ranging from 2.0 to 12.8 μM; 2 being the most potent compound. DNA interaction studies revealed a greater capacity of the complexes to interact with DNA than the ligands, where, 2 exhibited the highest Kb constant of 2.2 × 104 M-1. Fluorescence investigation demonstrated that 1-3 are capable of quenching the fluorescence emission of the EtdBr-DNA complex up to 40%. Molecular docking showed that the interaction of 1-3 between the DNA base pairs from the coumarin portion was with scores of 67.28, 68.62 and 64.88, respectively, and 75.45 for ellipticine, suggesting an intercalative mode of binding. Our findings show that the RuII complexes are eligible for continuing to be investigated as potential antitumor compounds.
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Affiliation(s)
- Patrícia S V B de Almeida
- Instituto de Química, Universidade Federal Rural do Rio de Janeiro, BR 465 Km 7, 23890-000, Seropédica, RJ, Brazil.
| | - Henrique Jefferson de Arruda
- Instituto de Química, Universidade Federal Rural do Rio de Janeiro, BR 465 Km 7, 23890-000, Seropédica, RJ, Brazil.
| | - Gleyton Leonel S Sousa
- Instituto de Química, Universidade Federal Rural do Rio de Janeiro, BR 465 Km 7, 23890-000, Seropédica, RJ, Brazil.
| | - Felipe Vitório Ribeiro
- Instituto de Química, Universidade Federal Rural do Rio de Janeiro, BR 465 Km 7, 23890-000, Seropédica, RJ, Brazil.
| | | | - Larissa A Ferreira
- Instituto de Química, Universidade Federal Rural do Rio de Janeiro, BR 465 Km 7, 23890-000, Seropédica, RJ, Brazil.
| | - Guilherme P Guedes
- Instituto de Química, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Heveline Silva
- Instituto de Ciências Exatas, Departamento de Química, Universidade Federal de Minas Gerais, MG, Brazil
| | - Arthur E Kummerle
- Instituto de Química, Universidade Federal Rural do Rio de Janeiro, BR 465 Km 7, 23890-000, Seropédica, RJ, Brazil.
| | - Amanda P Neves
- Instituto de Química, Universidade Federal Rural do Rio de Janeiro, BR 465 Km 7, 23890-000, Seropédica, RJ, Brazil.
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Jovanović-Stević S, Radisavljević S, Scheurer A, Ćoćić D, Šmit B, Petković M, Živanović MN, Virijević K, Petrović B. Bis(triazinyl)pyridine complexes of Pt(II) and Pd(II): studies of the nucleophilic substitution reactions, DNA/HSA interactions, molecular docking and biological activity. J Biol Inorg Chem 2021; 26:625-637. [PMID: 34268603 DOI: 10.1007/s00775-021-01879-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 06/07/2021] [Indexed: 11/29/2022]
Abstract
Four new complexes of Pt(II) and Pd(II), [Pd(L1)Cl]Cl 1, [Pd(L2)Cl]Cl 2, [Pt(L1)Cl]Cl 3 and [Pt(L2)Cl]Cl 4 (where L1 = 2,6-bis(5,6-diphenyl-1,2,4-triazin-3-yl)pyridine and L2 = 2,6-bis(5,6-dipropyl-1,2,4-triazin-3-yl)pyridine), were synthesized. Characterization of the complexes was performed using elemental analysis, IR, 1H NMR spectroscopy and MALDI-TOF mass spectrometry. The substitution reactions of 1-4 complexes with L-methionine (L-met), L-cysteine (L-cys) and guanosine-5'-monophosphate (5'-GMP), were studied spectrophotometrically at physiological conditions. Complexes with ligand L1 (1 or 3) were more reactive than those with ligand L2 (2 or 4) by a factor ranging up to 1.57 and 3.71, respectively. The order of reactivity of the nucleophiles was: L-met > L-cys > 5'-GMP. The interactions of complexes with calf thymus-DNA (CT-DNA) and human serum albumin (HSA) were studied by Uv-Vis absorption and fluorescence emission spectroscopy. Competitive binding studies with intercalative agent ethidium bromide (EB) and minor groove binder Hoechst 33258 were performed as well. All studied complexes can interact with DNA through the intercalation and minor groove binding, where the latter was preferred. The binding constants (103 and 104 M-1) for the interaction of complexes with HSA indicate the moderate binding affinity of complexes 1-4 to protein. The trends in the experimental results of binding studies between complexes 3 and 4 with DNA and HSA were compared to those obtained from the molecular docking study. Biological evaluation of cytotoxicity of 1 and 2 on HCT-116 and MDA-MB-231 cell lines showed significant cytotoxic and prooxidative character, while 2 also exerted extraordinary selectivity towards colon cancer in comparison to breast cancer cells. The nucleophilic substitution reactions, DNA/HSA interactions, molecular docking and biological activity of bis(triazinyl)pyridine complexes of Pt(II) and Pd(II) were studied.
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Affiliation(s)
- Snežana Jovanović-Stević
- Department of Natural Science, University of Kragujevac, Institute for Information Technologies Kragujevac, Jovana Cvijića Bb, 34000, Kragujevac, Serbia.
| | - Snežana Radisavljević
- Faculty of Science, University of Kragujevac, R. Domanovića 12, P. O. Box 60, 34000, Kragujevac, Serbia
| | - Andreas Scheurer
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Dušan Ćoćić
- Faculty of Science, University of Kragujevac, R. Domanovića 12, P. O. Box 60, 34000, Kragujevac, Serbia
| | - Biljana Šmit
- Department of Natural Science, University of Kragujevac, Institute for Information Technologies Kragujevac, Jovana Cvijića Bb, 34000, Kragujevac, Serbia
| | - Marijana Petković
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12-14, 11001, Belgrade, Serbia
| | - Marko N Živanović
- Department of Natural Science, University of Kragujevac, Institute for Information Technologies Kragujevac, Jovana Cvijića Bb, 34000, Kragujevac, Serbia
| | - Katarina Virijević
- Department of Natural Science, University of Kragujevac, Institute for Information Technologies Kragujevac, Jovana Cvijića Bb, 34000, Kragujevac, Serbia
| | - Biljana Petrović
- Faculty of Science, University of Kragujevac, R. Domanovića 12, P. O. Box 60, 34000, Kragujevac, Serbia
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Omondi RO, Sibuyi NRS, Fadaka AO, Meyer M, Jaganyi D, Ojwach SO. Role of π-conjugation on the coordination behaviour, substitution kinetics, DNA/BSA interactions, and in vitro cytotoxicity of carboxamide palladium(II) complexes. Dalton Trans 2021; 50:8127-8143. [PMID: 34027534 DOI: 10.1039/d1dt00412c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Treatments of N-(pyridin-2-ylmethyl)pyrazine-2-carboxamide (L1), N-(quinolin-8-yl)pyrazine-2-carboxamide (L2), N-(quinolin-8-yl)picolinamide (L3) and N-(quinolin-8-yl)quinoline-2-carboxamide (L4) with [PdCl2(NCMe)]2 afforded the corresponding Pd(ii) complexes, [Pd(L1)Cl] (PdL1); [Pd(L2)Cl] (PdL2); [Pd(L3)Cl] (PdL3); and [Pd(L4)Cl] (PdL4) in moderate yields. Structural characterisation of the compounds was achieved by NMR and FT-IR spectroscopies, elemental analyses and single crystal X-ray crystallography. The solid-state structures of complexes PdL2-PdL4 established the presence of one tridentate carboxamide and Cl ligands around the Pd(ii) coordination sphere, to give distorted square planar complexes. Electrochemical investigations of PdL1-PdL4 showed irreversible one-electron oxidation reactions. Kinetics reactivity of the complexes towards bio-molecules, thiourea (Tu), l-methionine (L-Met) and guanosine 5'-diphosphate disodium salt (5'-GMP) decreased in the order: PdL1 > PdL2 > PdL3 > PdL4, in tandem with the density functional theory (DFT) data. The complexes bind favourably to calf thymus (CT-DNA), and bovine serum albumin (BSA), and the order of their interactions agrees with the substitution kinetics trends. The in vitro cytotoxic activities of PdL1-PdL4 were examined in cancer cell lines A549, PC-3, HT-29, Caco-2, and HeLa, and a normal cell line, KMST-6. Overall, PdL1 and PdL3 displayed potent cytotoxic effects on A549, PC-3 HT-29 and Caco-2 comparable to cisplatin. All the investigated complexes exhibited lower toxicity on normal cells than cisplatin.
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Affiliation(s)
- Reinner O Omondi
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg 3209, South Africa.
| | - Nicole R S Sibuyi
- Department of Biotechnology, University of the Western Cape, Bag X17, Bellville, 7535, Cape Town, South Africa
| | - Adewale O Fadaka
- Department of Biotechnology, University of the Western Cape, Bag X17, Bellville, 7535, Cape Town, South Africa
| | - Mervin Meyer
- Department of Biotechnology, University of the Western Cape, Bag X17, Bellville, 7535, Cape Town, South Africa
| | - Deogratius Jaganyi
- School of Pure and Applied Sciences, Mount Kenya University, P.O. Box 342-01000, Thika, Kenya and Department of Chemistry, Faculty of Applied Sciences, Durban University of Technology, P.O. Box 1334, Durban 4000, South Africa
| | - Stephen O Ojwach
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg 3209, South Africa.
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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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14
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Development of a new electrochemical DNA biosensor based on Eu 3+-doped NiO for determination of amsacrine as an anti-cancer drug: Electrochemical, spectroscopic and docking studies. Anal Chim Acta 2020; 1133:48-57. [PMID: 32993873 DOI: 10.1016/j.aca.2020.07.071] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/20/2020] [Accepted: 07/30/2020] [Indexed: 12/14/2022]
Abstract
The present research reported a new electrochemical biosensor based on ds-DNA/Eu3+ doped NiO/CPE to detect amsacrine. Therefore, UV-Vis spectrophotometry, docking, and differential pulse voltammetry (DPV) have been used to study the interactions between amsacrine and dsDNA. Then, experimental parameters affected DNA immobilization and interactions between amsacrine and ds-DNA have been optimized. Afterwards, guanine oxidation peak current of ds-DNA has been chosen as a signal to analyze amsacrine in a concentration ranging between 0.1 and 100.0 μM and finally, limit of detection (LOD) of 0.05 μM has been calculated at optimal condition. Ultimately, it was found that the suggested biosensor is able to determine amsacrine in human serum and urine samples successfully.
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Liu JJ, Liu XR, Zhao SS, Yang ZW, Yang Z. Syntheses, crystal structures, thermal stabilities, CT-DNA, and BSA binding characteristics of a new acylhydrazone and its Co(II), Cu(II), and Zn(II) complexes. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1758316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Jing-Jing Liu
- Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, PR China
| | - Xiang-Rong Liu
- Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, PR China
| | - Shun-Sheng Zhao
- Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, PR China
| | - Zai-Wen Yang
- Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, PR China
| | - Zheng Yang
- Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, PR China
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