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van Niekerk A, Chakraborty S, Bellis C, Chellan P, Prince S, Mapolie SF. Binuclear palladacycles with ionisable and non-ionisable tethers as anticancer agents. J Inorg Biochem 2024; 257:112608. [PMID: 38761581 DOI: 10.1016/j.jinorgbio.2024.112608] [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: 01/17/2024] [Revised: 04/30/2024] [Accepted: 05/09/2024] [Indexed: 05/20/2024]
Abstract
The search for novel anticancer agents to replace the current platinum-based treatments remains an ongoing process. Palladacycles have shown excellent promise as demonstrated by our previous work which yielded BTC2, a binuclear palladadycle with a non-ionisable polyethylene glycol (PEG) tether. Here, we explore the importance of the PEG-tether length on the anticancer activity of the binuclear palladacycles by comparing three analogous binuclear palladacycles, BTC2, BTC5 and BTC6, in the oestrogen receptor positive MCF7 and triple-negative MDA-MB-231 breast cancer cell lines. In addition, these are compared to another analogue with an ionisable morpholine tether, BTC7. Potent anticancer activity was revealed through cell viability studies (MTT assays) revealed that while BTC6 showed similar potent anticancer activity as BTC2, it was less toxic towards non-cancerous cell lines. Interestingly, BTC7 and BTCF were less potent than the PEGylated palladacycles but showed significantly improved selectivity towards the triple-negative breast cancer cells. Cell death analysis showed that BTC7 and BTCF significantly induced apoptosis in both the cancer cell lines while the PEGylated complexes induced both apoptosis and secondary necrosis. Furthermore, experimental and computational DNA binding studies indicated partial intercalation and groove binding as the modes of action for the PEGylated palladacycles. Similarly, experimental and computational BSA binding studies indicated and specific binding sites in BSA dependent on the nature of the tethers on the complexes.
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Affiliation(s)
- A van Niekerk
- Department of Chemistry and Polymer Science, Stellenbosch University, Private bag X1, Stellenbosch 7602, South Africa,; Department of Human Biology, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa.
| | - S Chakraborty
- Department of Human Biology, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa
| | - C Bellis
- Department of Human Biology, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa
| | - P Chellan
- Department of Chemistry and Polymer Science, Stellenbosch University, Private bag X1, Stellenbosch 7602, South Africa
| | - S Prince
- Department of Human Biology, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa
| | - S F Mapolie
- Department of Chemistry and Polymer Science, Stellenbosch University, Private bag X1, Stellenbosch 7602, South Africa
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2
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Sanjurani T, Paul S, Barman P. Indole-based NNN donor Schiff base ligand and its complexes: Sonication-assisted synthesis, characterization, DNA binding, anti-cancer evaluation and in-vitro biological assay. Bioorg Chem 2024; 146:107281. [PMID: 38484588 DOI: 10.1016/j.bioorg.2024.107281] [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: 01/10/2024] [Revised: 02/16/2024] [Accepted: 03/09/2024] [Indexed: 04/13/2024]
Abstract
A novel indole based NNN donor Schiff base ligand and its Ni(II), Zn(II) and Cd(II) complexes have been synthesized using sonication-assisted method which is a highly efficient eco-friendly mechanism. The synthesized complexes have been characterized using elemental analysis, UV-Vis spectroscopy, mass spectrometry, FT-IR, and NMR and are optimized using DFT approach, which provided their theoretical framework. The stoichiometry between the ligand and the metal ions was also determined using Job's method. The thermogravimetric (TGA/DSC) analyses confirm the stability for all complexes at room temperature followed by thermal decomposition in different steps. DNA binding activities have been assessed by employing UV-visible and fluorescence spectra using the CT-DNA. The estimated intrinsic binding constant (Kb) for NiL, ZnL, and CdL complexes was 6.00 × 105, 5.58 × 105, and 4.7 × 105, respectively. In accordance with the Kb value, the quenching constant (Ksv) values of NiL, ZnL, and CdL are 5.59 × 105 M-1, 4.3 × 105 M-1, and 4.08 × 105 M-1 respectively. The anticancer properties have been assessed using MTT Assay. It has been found that the Ni(II) complex (NiL) is the most potent among the series with IC50 of 169 µg/mL. An in-vitro antioxidant experiment using DPPH was used to evaluate the synthesizedcomplexes' ability to scavenge free radicals. The findings indicated that the complexes exhibited notable antioxidant properties. The antioxidant property ZnL has been found to be the highest with an IC50 of 2.91 µg/mL and it follows the order is ZnL > NiL > CdL > L. Using the egg albumin denaturation technique, the anti-inflammatory property have been assessed, and the amount of protein denaturation inhibition has been computed. NiL has the highest % inhibition among the series studied. Comparatively, the metal complexes have been reported to exhibit higher biological activities than the prepared Schiff base ligand. The reason for the excellent biological properties observed in the metal complexes could be attributed to the incorporation of the electron-withdrawing CH3COO- during complexation. Molecular docking studies have been performed on the 2GYT protein and it has been found that the complexes have excellent binding affinity, with NiL having the lowest binding energy of -6.93 Kcal mol-1. The values suggested that NiL is more effective against HePG2 cancer cells, which is also in accordance with the MTT Assay results.
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Affiliation(s)
- Thangjam Sanjurani
- Department of Chemistry, National Institute of Technology Silchar, Assam 788010, India
| | - Sneha Paul
- Department of Chemistry, National Institute of Technology Silchar, Assam 788010, India
| | - Pranjit Barman
- Department of Chemistry, National Institute of Technology Silchar, Assam 788010, India.
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3
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Das S, Buschermöhle J, Zant DW, Schmidtmann M, van der Vlugt JI. Selective Manipulation of Well-Defined Trinuclear Pd(II)-Complexes. Chemistry 2024; 30:e202400044. [PMID: 38334955 DOI: 10.1002/chem.202400044] [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: 01/12/2024] [Revised: 02/09/2024] [Accepted: 02/09/2024] [Indexed: 02/10/2024]
Abstract
Several strategies are available to design well-defined multimetallic molecular entities bearing functional ligands. Substoichiometric exchange reactions in the coordination sphere of pre-existing multinuclear precursors are relatively underexploited in this context. Palladium(II) acetate is not a mononuclear compound in the solid state but rather exists as a trimer, i. e. [Pd3(OAc)6]. Although this material is ubiquitously used to synthesize mononuclear Pd species, it may principally also lend itself to selective exchange of some of the edge-sharing acetate units in its triangular motif, whilst keeping the overall multinuclear architecture intact. Strikingly, little is known about the controlled manipulation and substoichiometric substitution chemistry of this well-defined conglomerate. We herein conclusively demonstrate that, for the first time, the targeted exchange of two or four acetate units from the Pd3(acetate)6 platform is possible, thereby installing either one or two new tridentate ligands onto this trinuclear architecture. Follow-up exchange and substitution chemistry is available without disrupting the multimetallic nature of the core structure. New complexes 2-7 are all conclusively characterized using multinuclear NMR spectroscopy, UV-vis and IR spectroscopy as well as X-ray diffraction analysis.
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Affiliation(s)
- Siuli Das
- Bioinspired Coordination Chemistry and Homogeneous Catalysis Group, Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26129, Oldenburg, Germany
| | - Julia Buschermöhle
- Bioinspired Coordination Chemistry and Homogeneous Catalysis Group, Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26129, Oldenburg, Germany
| | - Dirk W Zant
- van 't Hoff Institute for Molecular Sciences, University of Amsterdam, the, Netherlands
| | - M Schmidtmann
- Bioinspired Coordination Chemistry and Homogeneous Catalysis Group, Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26129, Oldenburg, Germany
| | - Jarl Ivar van der Vlugt
- Bioinspired Coordination Chemistry and Homogeneous Catalysis Group, Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26129, Oldenburg, Germany
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4
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van Niekerk A, Blanckenberg A, Kimani S, Chakraborty S, Prince S, Chellan P, Mapolie S. Mechanistic insights into the anti-cancer activity of the PEGylated binuclear palladacycle, BTC2, against triple-negative breast cancer. J Inorg Biochem 2023; 243:112191. [PMID: 36996694 DOI: 10.1016/j.jinorgbio.2023.112191] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/28/2023] [Accepted: 03/11/2023] [Indexed: 03/14/2023]
Abstract
Triple-negative breast cancer (TNBC) has a low five-year survival rate, especially if the cancer is diagnosed at a late stage and has already metastasized beyond the breast tissue. Current chemotherapeutic options for TNBC rely on traditional platinum-containing drugs like cisplatin, oxaliplatin and carboplatin. Unfortunately, these drugs are indiscriminately toxic, resulting in severe side effects and the development of drug resistance. Palladium compounds have shown to be viable alternatives to platinum complexes since they are less toxic and have displayed selectivity towards the TNBC cell lines. Here we report the design, synthesis, and characterization of a series of binuclear benzylidene palladacycles with varying phosphine bridging ligands. From this series we have identified BTC2 to be more soluble (28.38-56.77 μg/mL) and less toxic than its predecessor, AJ5, while maintaining its anticancer properties (IC50 (MDA-MB-231) = 0.58 ± 0.012 μM). To complement the previous cell death pathway study of BTC2, we investigated the DNA and BSA binding properties of BTC2 through various spectroscopic and electrophoretic techniques, as well as molecular docking studies. We demonstrate that BTC2 displays multimodal DNA binding properties as both a partial intercalator and groove binder, with the latter being the predominant mode of action. BTC2 was also able to quench the fluorescence of BSA, thereby suggesting that the compound could be transported by albumin in mammalian cells. Molecular docking studies revealed that BTC2 is a major groove binder and binds preferentially to subdomain IIB of BSA. This study provides insight into the influence of the ligands on the activity of the binuclear palladacycles and provides much needed information on the mechanisms through which these complexes elicit their potent anticancer activity.
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Affiliation(s)
- Annick van Niekerk
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
| | - Angelique Blanckenberg
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
| | - Serah Kimani
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7625, South Africa
| | - Suparna Chakraborty
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7625, South Africa
| | - Sharon Prince
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7625, South Africa
| | - Prinessa Chellan
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
| | - Selwyn Mapolie
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa.
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5
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Feizi-Dehnayebi M, Dehghanian E, Mansouri-Torshizi H. Biological activity of bis-(morpholineacetato)palladium(II) complex: Preparation, structural elucidation, cytotoxicity, DNA-/serum albumin-interaction, density functional theory, in-silico prediction and molecular modeling. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 281:121543. [PMID: 35797947 DOI: 10.1016/j.saa.2022.121543] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 06/03/2022] [Accepted: 06/18/2022] [Indexed: 06/15/2023]
Abstract
In an effort to discover a novel potential bioactive compound, a mono-nuclear Pd(II) complex with an amino acid derivative as ligand was synthesized and characterized through experimental and computational methodologies. A square-planar configuration was suggested for palladium(II) complex utilizing density functional theory. MEP map and Mulliken atomic charge were detected electrophilic and nucleophilic regions of the compound for reactions. The lipophilicity and cytotoxic activity of the complex was more effective than cisplatin. Also, OSIRIS DataWarrior revealed proper oral bioavailability and good drug-likeness for the compound. In-vitro binding behavior of the Pd(II) complex with DNA and serum albumin (BSA) were fully determined via variety of procedures including fluorescence, UV-Vis, CD, viscosity, gel electrophoresis experiments and molecular simulation. The negative signs of ΔH° and ΔS° for Pd(II) complex-CT-DNA/-BSA systems indicated the existence of hydrogen bonding/van der Waals interactions for both binding systems. Additionally, docking simulation illustrated the interaction of Pd(II) complex with the minor groove of DNA and the hydrophobic cavity of the BSA (drug binding site I).
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Affiliation(s)
| | - Effat Dehghanian
- Department of Chemistry, University of Sistan and Baluchestan, Zahedan, Iran.
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6
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Mohammadlou F, Mansouri-Torshizi H, Dehghanian E, Abdi K. Synthesis, Characterization, Cytotoxicity and DNA/BSA Interaction of Pd(II) Complexes with Alkyl-Amine and 1,10-Phenanthroline. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2124283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Farahnaz Mohammadlou
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | - Hassan Mansouri-Torshizi
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | - Effat Dehghanian
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | - Khatereh Abdi
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
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7
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He R, Zhang Z, Xu L, Chen W, Zhang M, Zhong Q, Chen H, Chen W. Antibacterial mechanism of linalool emulsion against Pseudomonas aeruginosa and its application to cold fresh beef. World J Microbiol Biotechnol 2022; 38:56. [PMID: 35165818 DOI: 10.1007/s11274-022-03233-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 01/10/2022] [Indexed: 12/29/2022]
Abstract
Pseudomonas aeruginosa (P. aeruginosa) is the dominant spoilage bacterium in cold fresh beef. The current strategy is undertaken to overcome the low water solubility of linalool by encapsulating linalool into emulsions. The results of field emission scanning electron microscopy and particle size distribution revealed that the appearance of the bacterial cells was severely disrupted after exposure to linalool emulsion (LE) with an minimum inhibitory concentration (MIC) of 1.5 mL/L. Probes combined with fluorescence spectroscopy were performed to detect cell membrane permeability, while intracellular components (protein and ion leakage) and crystal violet staining were further measured to characterize cell membrane integrity and biofilm formation ability. The results confirmed that LE could destroy the structure of the cell membrane, thereby leading to the leakage of intracellular material and effective removal of biofilms. Molecular docking confirmed that LE can interact with the flagellar cap protein (FliD) and DNA of P. aeruginosa, inhibiting biofilm formation and causing genetic damage. Furthermore, the results of respiratory metabolism and reactive oxygen species (ROS) accumulation revealed that LE could significantly inhibit the metabolic activity of P. aeruginosa and induce oxidative stress. In particular, the inhibition rate of LE on P. aeruginosa was 23.03% and inhibited mainly the tricarboxylic acid cycle (TCA). Finally, LE was applied to preserve cold fresh beef, and the results showed that LE could effectively inhibit the activity of P. aeruginosa and delay the quality change of cold fresh beef during the storage period. These results are of great significance to developing natural preservatives and extending the shelf life of cold fresh beef.
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Affiliation(s)
- Rongrong He
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou, 570228, People's Republic of China
| | - Zhengke Zhang
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou, 570228, People's Republic of China
| | - Lilan Xu
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou, 570228, People's Republic of China
| | - Weijun Chen
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou, 570228, People's Republic of China
| | - Ming Zhang
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou, 570228, People's Republic of China
| | - Qiuping Zhong
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou, 570228, People's Republic of China
| | - Haiming Chen
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou, 570228, People's Republic of China.
| | - Wenxue Chen
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou, 570228, People's Republic of China. .,Spice and Beverage Research Institute, Chinese Academy of Tropical Agriculture Science, Wanning, Hainan, 571533, People's Republic of China.
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8
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de la Cueva-Alique I, de la Torre-Rubio E, Muñoz L, Calvo-Jareño A, Perez-Redondo A, Gude L, Cuenca T, Royo E. Stereoselective synthesis of oxime containing Pd(II) compounds: Highly effective, selective and stereo-regulated cytotoxicity against carcinogenic PC-3 cells. Dalton Trans 2022; 51:12812-12828. [DOI: 10.1039/d2dt01403c] [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
New palladium compounds [Pd{(1S,4R)-NOH^NH(R)}Cl2] (R = Ph 1a or Bn 1b), [Pd{(1S,4R)-NOH^NH(R)}{(1S,4R)-NO^NH(R)}][Cl] (R = Ph 2a or Bn 2b) and corresponding [Pd{(1R,4S)-NOH^NH(R)}Cl2] (R = Ph 1a’ or Bn 1b’) and...
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9
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Zhao D, Wang Q, Lu F, Bie X, Zhao H, Lu Z, Lu Y. A novel plantaricin 827 effectively inhibits Staphylococcus aureus and extends shelf life of skim milk. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112849] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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10
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Lighvan ZM, Khonakdar HA, Akbari A, Jahromi MD, Ramezanpour A, Kermagoret A, Heydari A, Jabbari E. Synthesis and biological evaluation of novel tetranuclear cyclopalladated complex bearing thiosemicarbazone scaffold ligand: Interactions with double‐strand DNA, coronavirus, and molecular modeling studies. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zohreh Mehri Lighvan
- Department of Polymer Processing Iran Polymer and Petrochemical Institute Tehran Iran
| | - Hossein Ali Khonakdar
- Department of Polymer Processing Iran Polymer and Petrochemical Institute Tehran Iran
- Leibniz‐Institut für Polymerforschung Dresdene. V Dresden Germany
| | - Ali Akbari
- Solid Tumor Research Center, Cellular and Molecular Medicine Research Institute Urmia University of Medical Sciences Urmia Iran
| | | | - Azar Ramezanpour
- Department of Chemistry Isfahan University of Technology Isfahan Iran
| | | | - Abolfazl Heydari
- Polymer Institute of the Slovak Academy of Sciences Bratislava Slovakia
| | - Esmaiel Jabbari
- Department of Chemical Engineering University of South Carolina Columbia South Carolina USA
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11
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Shiralinia A, Samiee S, Hoveizi E. Synthesis and characterization of mononuclear oxime-based palladacycles incorporating phosphorus ylides: application as a catalyst in Suzuki cross coupling reactions and their biological activities. J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1993206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ahmadreza Shiralinia
- Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Sepideh Samiee
- Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Elham Hoveizi
- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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12
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Abedanzadeh S, Karami K, Rahimi M, Edalati M, Abedanzadeh M, Tamaddon AM, Jahromi MD, Amirghofran Z, Lipkowski J, Lyczko K. Potent cyclometallated Pd(II) antitumor complexes bearing α-amino acids: synthesis, structural characterization, DNA/BSA binding, cytotoxicity and molecular dynamics simulation. Dalton Trans 2021; 49:14891-14907. [PMID: 33075117 DOI: 10.1039/d0dt02304c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A rational approach was adopted to design high-potential metal-based antitumor agents. A series of organometallic Pd(ii) complexes with a general formula of [Pd{κ2(C,C)-[(C6H4-2)PPh2]CH(CO)C6H4Ph-4}{κ2(N,O)}] (N,O = alanine (Pd-A), valine (Pd-V), leucine (Pd-L), l-isoleucine (Pd-I) and phenylalanine (Pd-F)) were prepared by cyclopalladation of the phosphorus ylide, bridge cleavage reaction and subsequent chelation of natural α-amino acids. The complexes were fully identified using IR and multinuclear 1H, 13C, 31P NMR spectroscopic methods. X-ray crystallography exhibited that the Pd(ii) atom is located in a slightly distorted square-planar environment surrounded by C,C-orthometallated phosphorus ylide as well as NO-pendant amino acid functionality. In vitro cytotoxicity evaluation of new cyclometallated Pd(ii) complexes toward a human leukemia (K562) cancer cell line indicated promising results. The highest cytotoxic activity was discovered in the case of phenylalanine (CH2C6H5). IC50 values of this complex on a panel of human tumor cell lines representative of liver (HepG2), breast (SKBR-3), and ovarian (A2780-Resistance/Sensitive) cancers also indicated promising antitumor effects in comparison with standard cisplatin. The binding interaction ability of the phenylalanine-containing orthopalladated complex, as the most efficient compound, with calf-thymus deoxyribonucleic acid (CT-DNA) and bovine serum albumin (BSA) was investigated. UV-Vis spectroscopy, competitive emission titration, and circular dichroism (CD) techniques demonstrated the intercalative binding of the Pd(ii) complex with DNA. Molecular docking studies also fully agreed with the experimental data. Examination of the reactivity towards the protein BSA revealed that the static quenching mechanism of BSA intrinsic fluorescence by the Pd(ii) complex with a binding constant (Kb) of ∼105 is indicative of the high affinity of the complex. The competitive binding experiment using site markers with definite binding sites demonstrated that the hydrophobic cavities of site I (subdomain IIA) are responsible for the bimolecular interaction between protein BSA and the complex. Molecular docking studies effectively confirmed the significance of hydrophobic interactions in Pd(ii)-BSA binding. The results of this study could greatly contribute to exploring new potent metal-based anticancer drugs.
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Affiliation(s)
- Sedigheh Abedanzadeh
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156/83111, Iran.
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13
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Protein interaction and in vitro cytotoxicity studies of newly designed palladium (II) nitrate complexes: spectrochemical, theoretical and biological assessments. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2021. [DOI: 10.1007/s13738-020-02075-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Patel NJ, Bhatt BS, Vekariya PA, Vaidya FU, Pathak C, Pandya J, Patel MN. Synthesis, characterization, structural-activity relationship and biomolecular interaction studies of heteroleptic Pd(II) complexes with acetyl pyridine scaffold. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128802] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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A Pd(II) complex derived from pyridine-2-carbaldehyde oxime ligand: Synthesis, characterization, DNA and BSA interaction studies and in vitro anticancer activity. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128479] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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16
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Lighvan ZM, Khonakdar HA, Heydari A, Rafiee M, Jahromi MD, Derakhshani A, Momtazi‐Borojeni AA. Spectral and molecular docking studies of nucleic acids/protein binding interactions of a novel organometallic palladium (II) complex containing bioactive PTA ligands: Its synthesis, anticancer effects and encapsulation in albumin nanoparticles. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5839] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Zohreh Mehri Lighvan
- Department of Polymer Processing Iran Polymer and Petrochemical Institute P.O. Box 14965‐115 Tehran Iran
| | - Hossein Ali Khonakdar
- Department of Polymer Processing Iran Polymer and Petrochemical Institute P.O. Box 14965‐115 Tehran Iran
- Leibniz‐Institut für Polymerforschung Dresdene. V Hohe Straße 6, D‐01069 Dresden Germany
| | - Abolfazl Heydari
- Polymer Institute of the Slovak Academy of Sciences Dúbravská cesta 9 Bratislava 845 41 Slovakia
| | - Mina Rafiee
- Department of Chemistry Isfahan University of Technology Isfahan 84156/83111 Iran
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17
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Singh I, Luxami V, Paul K. Spectroscopy and molecular docking approach for investigation on the binding of nocodazole to human serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 235:118289. [PMID: 32222625 DOI: 10.1016/j.saa.2020.118289] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 03/16/2020] [Accepted: 03/20/2020] [Indexed: 06/10/2023]
Abstract
The interaction between nocodazole (Nz) and human serum albumin (HSA) under controlled physiological condition (pH 7.4) is examined using absorption, emission, fluorescence lifetime (FLT) and circular dichroism (CD) spectroscopic techniques. The binding constant (order of 105 M-1) from UV-vis and fluorescence spectroscopy reveals a strong interaction between Nz and HSA. Fluorescence quenching study shows that Nz binds with HSA through static quenching process. It is induced by formation of Nz-HSA complex because the Stern-Volmer quenching constant is inversely correlated with the temperature which is further verified by time-resolved fluorescence spectroscopy. The thermodynamic parameters at different temperatures indicate that the binding process is spontaneous where hydrogen bonding interactions and Van der Waals forces play major roles during the interaction between Nz and HSA. By means of spectroscopy and molecular modeling, we have discovered and interpreted the alteration of the secondary structure of HSA by Nz complexation. Synchronous, three-dimensional fluorescence and CD spectroscopic results reveal that the addition of Nz to HSA affects changes in the micro-environment and conformation of HSA. According to Förster Resonance Energy Transfer (FRET), the binding distance (r) between Nz and residue of HSA is <8 nm with excellent energy efficiency. The docking study suggests that nocodazole binds at Domain IIA in the hydrophobic pocket of human serum albumin.
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Affiliation(s)
- Iqubal Singh
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala-147001, India
| | - Vijay Luxami
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala-147001, India
| | - Kamaldeep Paul
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala-147001, India.
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18
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Novel fluorescence palladium-alkoxime complexes: Synthesis, characterization, DNA/BSA spectroscopic and docking studies, evaluation of cytotoxicity and DNA cleavage mechanism. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127595] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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19
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Elshami FI, Ramadan AEM, Ibrahim MM, El‐Mehasseb IM, Al‐Juaid S, Shaban SY. Metformin Containing Nickel (II) Complexes: Synthesis, Structural Characterization, Binding and Kinetic Interactions with BSA, Antibacterial and in‐vitro Cytotoxicity Studies. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5437] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Fawzya I. Elshami
- Department of Chemistry, Faculty of Science, KafrelsheikhUniversity Kafrelsheikh 33516 Egypt
| | | | - Mohamed M. Ibrahim
- Department of Chemistry, Faculty of Science, KafrelsheikhUniversity Kafrelsheikh 33516 Egypt
- Department of Chemistry, Faculty of ScienceTaif University Taif Saudi Arabia
| | - Ibrahim M. El‐Mehasseb
- Department of Chemistry, Faculty of Science, KafrelsheikhUniversity Kafrelsheikh 33516 Egypt
| | - Salih Al‐Juaid
- Department of Chemistry, Faculty of ScienceKing Abdulaziz University Jeddah Saudi Arabia
| | - Shaban Y. Shaban
- Department of Chemistry, Faculty of Science, KafrelsheikhUniversity Kafrelsheikh 33516 Egypt
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20
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Heteroleptic N,N-donor pyrazole based Pt(II) and Pd(II) complexes: DNA binding, molecular docking and cytotoxicity studies. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.119130] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Liu Y, Lu J, Sun J, Lu F, Bie X, Lu Z. Membrane disruption and DNA binding of Fusarium graminearum cell induced by C16-Fengycin A produced by Bacillus amyloliquefaciens. Food Control 2019. [DOI: 10.1016/j.foodcont.2019.03.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Karami K, Ramezanpour A, Zakariazadeh M, Shahpiri A, Kharaziha M, Kazeminasab A. Luminescent Palladacycles Containing a Pyrene Chromophor; Synthesis, Biological and Computational Studies of the Interaction with DNA and BSA. ChemistrySelect 2019. [DOI: 10.1002/slct.201900707] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Kazem Karami
- Department of ChemistryIsfahan University of Technology Isfahan 84156/83111 Iran
| | - Azar Ramezanpour
- Department of ChemistryIsfahan University of Technology Isfahan 84156/83111 Iran
| | - Mostafa Zakariazadeh
- Research Institute for Fundamental Sciences (RIFS) University of Tabriz Tabriz Iran
| | - Azar Shahpiri
- Department of BiotechnologyCollege of AgricultureIsfahan University of Technology Isfahan Iran
| | - Mahshid Kharaziha
- Department of Materials EngineeringIsfahan Univezrsity of Technology Isfahan Iran
| | - Akram Kazeminasab
- Department of BiotechnologyCollege of AgricultureIsfahan University of Technology Isfahan Iran
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23
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Sedighipoor M, Kianfar AH, Mohammadnezhad G, Görls H, Plass W, Momtazi-Borojeni AA, Abdollahi E. Synthesis, crystal structure of novel unsymmetrical heterocyclic Schiff base Ni(II)/V(IV) complexes: Investigation of DNA binding, protein binding and in vitro cytotoxic activity. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.12.051] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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24
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A novel silver (I) complex of α-keto phosphorus ylide: Synthesis, characterization, crystal structure, biomolecular interaction studies, molecular docking and in vitro cytotoxic evaluation. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.063] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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25
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İnci D, Aydın R, Vatan Ö, Şahin O, Çinkılıç N. Water-soluble binary and ternary palladium(ıı) complexes containing amino acids and intercalating ligands: synthesis, characterization, biomolecular interactions and cytotoxicities. NEW J CHEM 2019. [DOI: 10.1039/c8nj05934a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel water soluble palladium(ii) complexes have been synthesized and characterized. Moreover, the cytotoxicities of these complexes against different human tumor and healthy cell lines were investigated by the XTT assay.
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Affiliation(s)
- Duygu İnci
- Department of Chemistry
- Faculty of Arts and Sciences
- Uludag University
- 16059 Bursa
- Turkey
| | - Rahmiye Aydın
- Department of Chemistry
- Faculty of Arts and Sciences
- Uludag University
- 16059 Bursa
- Turkey
| | - Özgür Vatan
- Department of Biology
- Faculty of Arts and Sciences
- Uludag University
- 16059 Bursa
- Turkey
| | - Onur Şahin
- Scientific and Technological Research Application and Research Center
- Sinop University
- 57000 Sinop
- Turkey
| | - Nilüfer Çinkılıç
- Department of Biology
- Faculty of Arts and Sciences
- Uludag University
- 16059 Bursa
- Turkey
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26
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de la Cueva-Alique I, Muñoz-Moreno L, de la Torre-Rubio E, Bajo AM, Gude L, Cuenca T, Royo E. Water soluble, optically active monofunctional Pd(ii) and Pt(ii) compounds: promising adhesive and antimigratory effects on human prostate PC-3 cancer cells. Dalton Trans 2019; 48:14279-14293. [DOI: 10.1039/c9dt02873k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water soluble, enantiomerically pure “rule breakers” Pd(ii) and Pt(ii) compounds with promising anticancer potential are reported.
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Affiliation(s)
- Isabel de la Cueva-Alique
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química Andrés M. del Río (IQAR)
- Universidad de Alcalá
- Madrid
- Spain
| | - Laura Muñoz-Moreno
- Departamento de Biología de Sistemas
- Facultad de Medicina y Ciencias de la Salud
- Universidad de Alcalá
- Madrid
- Spain
| | - Elena de la Torre-Rubio
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química Andrés M. del Río (IQAR)
- Universidad de Alcalá
- Madrid
- Spain
| | - Ana M. Bajo
- Departamento de Biología de Sistemas
- Facultad de Medicina y Ciencias de la Salud
- Universidad de Alcalá
- Madrid
- Spain
| | - Lourdes Gude
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química Andrés M. del Río (IQAR)
- Universidad de Alcalá
- Madrid
- Spain
| | - Tomás Cuenca
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química Andrés M. del Río (IQAR)
- Universidad de Alcalá
- Madrid
- Spain
| | - Eva Royo
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química Andrés M. del Río (IQAR)
- Universidad de Alcalá
- Madrid
- Spain
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DNA G-quadruplexes binding and antitumor activity of palladium aryl oxime ligand complexes encapsulated in either albumin or algal cellulose nanoparticles. Colloids Surf B Biointerfaces 2018; 176:70-79. [PMID: 30594705 DOI: 10.1016/j.colsurfb.2018.12.050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 12/14/2018] [Accepted: 12/18/2018] [Indexed: 01/12/2023]
Abstract
The interactions between two Pd complexes, designated as [Pd3(C,N-(C6H4C(Cl) = NO)-4)6] (complex 1) and [Pd3(C12H8C = NO)6] (complex 2), with the human telomeric G-quadruplex DNA, 5'-G3(T2AG3)3-3' (HTG21), were monitored using spectroscopic, biological, and molecular modeling studies. According to the UV-vis results, these complexes can strongly induce and stabilize G-quadruplex DNA structure with Kb1 = 4.5(±0.3) × 106 M-1 and Kb2 = 1.0(±0.2) × 107 M-1via groove mode in comparison with duplex DNA. The release mechanism of the Pd complexes from BSA nanoparticles followed a biphasic pattern unlike that of algal cellulose nanoparticles in vitro. In addition, the cytotoxicity of these complexes on MCF-7 cancer cells and PBMC normal cells was evaluated and compared with cisplatin under similar experimental conditions. Furthermore, to determine and verify the interaction mode of these compounds with G-quadruplex, the molecular docking technique was also performed. Our data clearly demonstrated that complex 2 had higher activity and cytotoxicity than that of complex 1 and could be further investigated in the future as a drug discovery platform.
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28
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Karami K, Rahimi M, Zakariazadeh M, Buyukgungor O, Amirghofran Z. New phosphorus ylide palladacyclic: Synthesis, characterization, X-Ray crystal structure, biomolecular interaction studies, molecular docking and in vitro cytotoxicity evaluations. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.09.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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29
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Synthesis, DNA and BSA binding of Pd(II) and Pt(II) complexes featuring tetrazolylacetic acids and their esters. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.12.040] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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30
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Seyfi S, Alizadeh R, Darvish Ganji M, Amani V. Synthesis, spectral and luminescence study, crystal structure determination and DFT calculation of binuclear palladium(II) complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 190:298-311. [PMID: 28941414 DOI: 10.1016/j.saa.2017.09.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 08/18/2017] [Accepted: 09/12/2017] [Indexed: 06/07/2023]
Abstract
Binuclear palladium(II) complexes with metal-metal (d8-d8) bonding interaction were synthesized by reactions of the 1-methyl-1H-1,2,3,4-tetrazole-5-thiol (Hmtzt) or a mixture of Hmtzt and 1,3-propanediamine (1,3-pda) ligands. Complex [Pd2(μ-mtzt)4]·2CH3CN (1) was synthesized by the reaction of Pd(OAc)2 with Hmtzt dissolved in acetonitrile and complex [Pd2(μ-mtzt)2(mtzt)2(1,3-pda)] (2) was synthesized by reaction of a mixture of Hmtzt and 1,3-propanediamine (dissolved in methanol) with PdCl2 (dissolved in acetonitrile) and were identified through elemental analysis, IR, UV-Vis, 1H NMR, luminescence spectroscopy as well as single-crystal X-ray diffraction method. A single-crystal of complex 1 shows that two Pd(II) centers are linked together by four bridging tetrazole ligands providing a paddle wheel-like arrangement. Also a crystal structure of complex 2 shows that this complex possesses a symmetric structure in which one Pd atom is tetra-coordinated by four sulfur atoms to forms PdS4 and other Pd atom is tetra-coordinated by four nitrogen to forms PdN4 coordination sphere. Density functional theory (DFT) was performed in this study for the Hmtzt ligand and binuclear palladium(II) complexes (1) and (2). The DFT calculation shows PdII-PdII bond lengths of 2.831 and 3.086Å in complex 1 and 2, respectively which are close to the observed bond lengths of 2.802(11) and 3.0911(17)Å from single-crystal X-ray structure. The optimized geometry of the complexes is shown good agreement by X-ray data. Structural properties and molecular descriptors including bond lengths, bond angles, chemical hardness, dipole moment, HOMO-LUMO energy levels, electron transfer were analyzed. The IR spectroscopy was performed using VEDA4 software and UV-Vis spectra were analyzed using time-dependent density functional theory (TD-DFT) method. The theoretical and experimental data were also compared with each other.
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Affiliation(s)
- S Seyfi
- School of Chemistry, Damghan University, P.O. Box 36715-364, Damghan, Iran
| | - R Alizadeh
- School of Chemistry, Damghan University, P.O. Box 36715-364, Damghan, Iran.
| | - M Darvish Ganji
- Department of Nanochemistry, Faculty of Pharmaceutical Chemistry, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran.
| | - V Amani
- Department of Chemistry, Farhangian University, Tehran, Iran
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31
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Synthesis and characterization of two new trans palladium (II) complexes containing benzylamine ligand: DNA/BSA interactions, molecular docking and in vitro cytotoxic activity. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.02.027] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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32
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Unravelling the binding mechanism of benproperine with human serum albumin: A docking, fluorometric, and thermodynamic approach. Eur J Med Chem 2018; 146:245-250. [DOI: 10.1016/j.ejmech.2018.01.064] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 01/17/2018] [Accepted: 01/18/2018] [Indexed: 01/01/2023]
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33
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Karami K, Mehri Lighvan Z, Farrokhpour H, Dehdashti Jahromi M, Momtazi-Borojeni AA. Synthesis and spectroscopic characterization study of new palladium complexes containing bioactive O,O-chelated ligands: evaluation of the DNA/protein BSA interaction, in vitro antitumoural activity and molecular docking. J Biomol Struct Dyn 2017; 36:3324-3340. [PMID: 29019431 DOI: 10.1080/07391102.2017.1391125] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
[Pd{(C,N)-C6H4CH2NH(Et) (Qu)] (2) and [Pd{(C,N)-C6H4CH2NH(Et) (Nar)] (3) (Qu = Quercetin, Nar = Naringin) mononuclear palladium (II) complexes have been synthesized and characterized using elemental analysis, IR and electronic spectroscopy. The interaction of the prepared complexes with calf thymus DNA and bovine serum albumin (BSA), monitored by UV-visible and fluorescence titrations, respectively, have been carried out to better understand the mode of their action under biological conditions. Intercalative binding mode between the complexes and DNA is suggested by the binding constant (Kb) values of 2.5 × 106 and 3.2 × 106 for complexes 2 and 3, respectively. In particular, the in vitro cytotoxicity of the complexes on two cancer cells lines (bladder carcinoma TCC and breast cancer MCF7) showed that the compounds had broad spectrum, anti-cancer activity with low IC50 values and the order of in vitro anticancer activities is consistent with the DNA-binding affinities. In the meantime, the quenching of tryptophan emission with the addition of complexes using BSA as a model protein indicated the protein binding ability. The quenching mechanisms of BSA by the complexes were static processes, according to the results obtained. The competitive binding using Warfarin, Digoxin and Ibuprofen site markers, which contain definite biding sites, demonstrated that the complexes bind to site I on BSA. Ultimately, the binding sites of DNA and BSA with the complexes have been determined by molecular modelling studies.
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Affiliation(s)
- Kazem Karami
- a Department of Chemistry , Isfahan University of Technology , Isfahan 84156/83111 , Iran
| | - Zohreh Mehri Lighvan
- a Department of Chemistry , Isfahan University of Technology , Isfahan 84156/83111 , Iran
| | - Hossein Farrokhpour
- a Department of Chemistry , Isfahan University of Technology , Isfahan 84156/83111 , Iran
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34
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Cyclopalladated complexes containing metformin and benzylamine derivatives: Synthesis, characterization, binding interactions with DNA and BSA, in vitro cytotoxicity studies. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.07.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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35
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Li Y, Yang Z, Zhou M, Li Y, He J, Wang X, Lin Z. Ni(ii) and Co(ii) complexes of an asymmetrical aroylhydrazone: synthesis, molecular structures, DNA binding, protein interaction, radical scavenging and cytotoxic activity. RSC Adv 2017. [DOI: 10.1039/c7ra05504h] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The DNA/BSA binding, antioxidant and cytotoxic activity of Ni(ii) and Co(ii) complexes bearing aroylhydrazone were investigated to induce apoptosis in cancer cells.
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Affiliation(s)
- Yueqin Li
- School of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
| | - Zhiwei Yang
- School of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
| | - Minya Zhou
- School of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
| | - Yun Li
- School of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
| | - Jing He
- School of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
| | - Xuehong Wang
- School of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
| | - Zhengfeng Lin
- Inspection and Quarantine Technology Centre
- Hainan Entry-exit Inspection and Quarantine Bureau
- Haikou 570311
- P. R. China
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36
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Wang LH, Zhang ZH, Zeng XA, Gong DM, Wang MS. Combination of microbiological, spectroscopic and molecular docking techniques to study the antibacterial mechanism of thymol against Staphylococcus aureus: membrane damage and genomic DNA binding. Anal Bioanal Chem 2016; 409:1615-1625. [PMID: 27900434 DOI: 10.1007/s00216-016-0102-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 11/07/2016] [Accepted: 11/15/2016] [Indexed: 12/13/2022]
Abstract
Thymol (2-isopropyl-5-methylphenol) is a natural ingredient used as flavor or preservative agent in food products. The antibacterial mechanism of thymol against Gram-positive, Staphylococcus aureus was investigated in this work. A total of 15 membrane fatty acids were identified in S. aureus cells by gas chromatography-mass spectrometry. Exposure to thymol at low concentrations induced obvious alterations in membrane fatty acid composition, such as decreasing the proportion of branched 12-methyltetradecanoic acid and 14-methylhexadecanoic acid (from 22.4 and 17.3% to 7.9 and 10.3%, respectively). Membrane permeability assay and morphological image showed that thymol at higher concentrations disrupted S. aureus cell membrane integrity, which may decrease cell viability. Moreover, the interaction of thymol with genomic DNA was also investigated using multi-spectroscopic techniques, docking and atomic force microscopy. The results indicated that thymol bound to the minor groove of DNA with binding constant (K a) value of (1.22 ± 0.14) × 104 M-1, and this binding interaction induced a mild destabilization in the DNA secondary structure, and made DNA molecules to be aggregated. Graphical Abstract Thymol exerts its antibacterial effect throught destruction of bacterial cell membrane and binding directly to genomic DNA.
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Affiliation(s)
- Lang-Hong Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong, 510641, China.,Food Green Processing and Nutrition Regulation Research Center of Guangdong Province, South China University of Technology, Guangzhou, Guangdong, 510641, China
| | - Zhi-Hong Zhang
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong, 510641, China.,Food Green Processing and Nutrition Regulation Research Center of Guangdong Province, South China University of Technology, Guangzhou, Guangdong, 510641, China
| | - Xin-An Zeng
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong, 510641, China. .,Food Green Processing and Nutrition Regulation Research Center of Guangdong Province, South China University of Technology, Guangzhou, Guangdong, 510641, China.
| | - De-Ming Gong
- School of Biological Sciences, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
| | - Man-Sheng Wang
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, No. 348 West Xianjiahu Road, Changsha, Hunan, 410205, China
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