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Dorafshan Tabatabai AS, Dehghanian E, Mansouri-Torshizi H. In-silico and in-detail experimental interaction studies of new antitumor Zn(II) complex with CT-DNA and serum albumin. J Biomol Struct Dyn 2023; 41:9614-9631. [PMID: 36398999 DOI: 10.1080/07391102.2022.2144459] [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: 07/28/2022] [Accepted: 10/31/2022] [Indexed: 11/19/2022]
Abstract
In this study, a novel Zn(II) complex with the formula [Zn(pyrr-ac)2] (pyrr-ac: pyrrolidineacetate) was synthesized and characterized through molar conductivity, elemental analysis, 1H Nuclear Magnetic Resonance (1H NMR), UV-Visible spectroscopy, and Fourier transform infrared (FT-IR) methods. B3LYP level of DFT method along with aug-cc-pVTZ-PP/6-311G(d,p) basis set was utilized to perform the geometry optimization and HOMO-LUMO analysis. In addition, MEP, NLO and NBO computations were also performed at the same level of theory. In vitro antitumor activity of the mentioned complex on leukemia cell line, K562, was investigated using the MTT assay which surprisingly revealed the effective antitumor activity of the studied zinc complex. Interaction of this compound with biological macromolecules viz., CT-DNA and BSA was studied via different spectroscopic methods. The results of fluorescence experiment displayed that the metal complex binds to both macromolecules through hydrogen bond (H-bond) and van der Waals (vdW) forces. UV-Vis tests indicated a decline in the absorption spectra of CT-DNA/BSA in the presence of the compound. The interaction was further corroborated for CT-DNA via gel electrophoresis, CD spectroscopy and viscosity experiments and for BSA using CD spectroscopy. Furthermore, molecular docking simulation was done to evaluate the nature of interaction between the aforementioned zinc complex and CT-DNA/BSA. These results were in agreement with experimental findings and demonstrated that the main interaction is hydrogen bonding. The above type of investigations may provide a pathway through which zinc complexes join the anticancer category.[Figure: see text]The in-silico and in-vitro results confirm that the newly made [Zn(pyrr-ac)2] complex interacts with CT-DNA than BSA.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | - Effat Dehghanian
- Department of Chemistry, University of Sistan and Baluchestan, Zahedan, Iran
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Liu K, Zhang Y, Zhang W, Liu L, Yu Z. A Study on the Interactions of Proteinase K with Myricetin and Myricitrin by Multi-Spectroscopy and Molecular Modeling. Int J Mol Sci 2023; 24:ijms24065317. [PMID: 36982397 PMCID: PMC10048853 DOI: 10.3390/ijms24065317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/28/2023] [Accepted: 03/08/2023] [Indexed: 03/16/2023] Open
Abstract
Myricetin (MYR) and myricitrin (MYT) are well recognized for their nutraceutical value, such as antioxidant, hypoglycemic, and hypotensive effects. In this work, fluorescence spectroscopy and molecular modeling were adopted to investigate the conformational and stability changes of proteinase K (PK) in the presence of MYR and MYT. The experimental results showed that both MYR and MYT could quench fluorescence emission via a static quenching mechanism. Further investigation demonstrated that both hydrogen bonding and van der Waals forces play significant roles in the binding of complexes, which is consistent with the conclusions of molecular modeling. Synchronous fluorescence spectroscopy, Förster resonance energy transfer, and site-tagged competition experiments were performed to prove that the binding of MYR or MYT to PK could alter its micro-environment and conformation. Molecular docking results revealed that either MYR or MYT spontaneously interacted with PK at a single binding site via hydrogen bonding and hydrophobic interactions, which is consistent with the results of spectroscopic measurements. A 30 ns molecular dynamics simulation was conducted for both PK-MYR and PK-MYT complexes. The calculation results showed that no large structural distortions or interaction changes occurred during the entire simulation time span. The average RMSD changes of PK in PK-MYR and PK-MYT were 2.06 and 2.15 Å, respectively, indicating excellent stability of both complexes. The molecular simulation results suggested that both MYR and MYT could interact with PK spontaneously, which is in agreement with spectroscopic results. This agreement between experimental and theoretical results indicates that the method herein could be feasible and worthwhile for protein–ligand complex studies.
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Affiliation(s)
- Kefan Liu
- College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, China
| | - Yubo Zhang
- College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, China
| | - Wei Zhang
- College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, China
| | - Liyan Liu
- College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, China
| | - Zhan Yu
- College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, China
- Provincial Key Laboratory for Separation and Analysis of Complex Systems in Liaoning Universities, Shenyang Normal University, Shenyang 110034, China
- Correspondence:
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Eslami-Farsani R, Farhadian S, Shareghi B, Momeni L. molecular interaction of ethylene glycol to hurt Myoglobin: Insights from spectroscopic and molecular modeling studies. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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4
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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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Probing the biomolecular (DNA/BSA) interaction by new Pd(II) complex via in-depth experimental and computational perspectives: synthesis, characterization, cytotoxicity, and DFT approach. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2022. [PMCID: PMC8874310 DOI: 10.1007/s13738-022-02519-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Scientists should not forget that the rate of death as a result of cancer is far more than that of other diseases like influenza or coronavirus (COVID-19), so the research in this field is of cardinal significance. Therefore, a new and hydrophilic palladium(II) complex of the general formula [Pd(bpy)(proli-dtc)]NO3, in which bpy and proli-dtc are 2,2'-bipyridine and pyrroline dithiocarbamate ligands, respectively, was synthesized and characterized utilizing spectral and analytical procedures. Density functional theory (DFT) calculation was also performed with B3LYP method in the gas phase. The DFT and spectral analysis specified that the Pd(II) atom is found in a square-planar geometry. HOMO/LUMO analysis, quantum chemical parameters and MEP surface of the complex were investigated to acquire an intuition about the nature of the compound. Partition coefficient and water solubility determination showed that both lipophilicity and hydrophilicity of the compound are more than cisplatin. The 50% inhibition concentration (IC50) value was evaluated against K562 cancer cells, the obtained result has revealed a promising cytotoxic effect. DNA and BSA binding of the complex were explored through multi-spectroscopic (UV–Vis, fluorescence, FRET, and CD) and non-spectroscopic (gel electrophoresis, viscosity and docking simulation) techniques. The obtained findings demonstrated that the complex strongly interacts with CT-DNA by hydrophobic interactions and possesses medium interaction with BSA via hydrogen bond and van der Waals forces, thus BSA could efficiently carry out complex transportation. Furthermore, the results of docking simulation agree well with the experimental findings. In conclusion, the new Pd(II) complex has cytotoxic activity and could interact with DNA and BSA effectively.
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Eslami-Farsani R, Farhadian S, Shareghi B. Exploring the structural basis of conformational alterations of myoglobin in the presence of spermine through computational modeling, molecular dynamics simulations, and spectroscopy methods. J Biomol Struct Dyn 2022; 40:3581-3594. [PMID: 33308044 DOI: 10.1080/07391102.2020.1848633] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Spermine as polyamines can have interaction with the myoglobin (Mb). The intent of this pondering to evaluate the impact of spermine on Mb properties, for example, the structure and thermal stability. For this analysis, the following approaches are employed. Thermodynamics, molecular dynamics (MD), and docking and the use of other spectroscopic procedures. The results of fluorescence spectroscopy and docking showed that binding spermine to Mb was spontaneous. Spermine quenched the fluorescence of Mb through the static quenching process. The thermal stability of Mb was incremented when the concentration of spermine increased. The CD spectra showed Mb's secondary structure shift with a rise in β-sheet and a decrease in α-helicity Mb's in spermine presence. Molecular docking and MD simulation outcomes demonstrate that electrostatic forces show a critical function in stabilizing of this complex, which is in conforming to spectroscopic results.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | - Sadegh Farhadian
- Department of Biology, Shahrekord University, Shahrekord, Iran.,Central Laboratory, Shahrekord University, Shahrekord, Iran
| | - Behzad Shareghi
- Department of Biology, Shahrekord University, Shahrekord, Iran.,Central Laboratory, Shahrekord University, Shahrekord, Iran
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Ashrafi N, Shareghi B, Farhadian S, Hosseini-Koupaei M. A comparative study of the interaction of naringenin with lysozyme by multi-spectroscopic methods, activity comparisons, and molecular modeling procedures. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 271:120931. [PMID: 35085994 DOI: 10.1016/j.saa.2022.120931] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 12/31/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
The present study applied steady-state fluorescence, UV-Vis spectrophotometry, molecular docking studies, and circular dichroism (CD) to investigate the interaction of naringenin with lysozyme in an aqueous medium. The UV-Vis measurement indicated the changes in lysozyme secondary and tertiary structure change as a function of the concentration of naringenin. Naringenin could be used to turn the static quenching mechanism into the intrinsic fluorescence of lysozyme. The negative amount of Gibbs free energy (ΔG°) suggested that the binding operation was spontaneous. Fluorescence studies also demonstrated the changes occurring in the Trp microenvironment upon the concatenation into lysozyme. Analysis of thermodynamic parameters also revealed that hydrophobic forces played a fundamental role in determining the complex stability; this was consistent with the previous modeling studies. Circular dichroism also suggested that the alpha-helicity of lysozyme was enhanced as ligand was bound. Naringenin inhibited lysozyme enzymatic activity, displaying its affinity with the lysozyme active site. Further, molecular docking studies demonstrated that naringenin could bind to both residues essential for catalytic activity in the proximity of Trp 62 and Trp 63.
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Affiliation(s)
- Narges Ashrafi
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, Iran
| | - Behzad Shareghi
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, Iran; Central Laboratory, Shahrekord University, Shahrekord, Iran.
| | - Sadegh Farhadian
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, Iran; Central Laboratory, Shahrekord University, Shahrekord, Iran.
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9
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Zare Karizak A, Divsalar A, Leilabadi Asl A, Fateminasab F, Shityakov S, Saboury AA. Molecular insights into the interaction of 5-fluorouracil and Fe 3O 4 nanoparticles with beta-casein: An experimental and theoretical study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120538. [PMID: 34749259 DOI: 10.1016/j.saa.2021.120538] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 10/12/2021] [Accepted: 10/23/2021] [Indexed: 06/13/2023]
Abstract
We investigated the potential carrier of milk beta-casein (β-CN) and its interactions with 5-fluorouracil (5-FU) and iron oxide nanoparticles (Fe3O4 NPs). We used different spectroscopic methods of fluorescence, UV-Visble, circular dichroism (CD), synchronous fluorescence, zeta potential assay, and computational studies to clarify the protein interaction with 5-FU and Fe3O4 NPs. The fluorescence data indicated both Fe3O4 NPs and 5-FU could quench the intrinsic fluorescence of β-CN. Fluorescence measurements showed that the single interaction of β-CN with 5-FU or Fe3O4 NPs was static, while reacted β-CN with both 5-FU and Fe3O4 NPs simultaneously showed a dynamic quenching. Synchronous fluorescence data in both tests revealed that the tryptophan (Trp) residue of β-CN had a dominant role in quenching and the polarity of its microenvironment more than tyrosine (Tyr) increased in interaction with 5-FU. All the binding sites and thermodynamic parameters were obtained at 25, 37, and 42 °C. The analysis of thermodynamic parameters and Job's plot techniques pointed to that both of these complexes with the 1:1 M ratio were exothermic (ΔH°<0) driven with the van der Waals and H-bonding interactions (in agreement with the docking results). The CD spectra in the region of far-UV and thermal denaturation study indicated minor changes in the secondary structure of β-CN in the presence of various concentrations of Fe3O4 NPs and 5-FU. Also, from the molecular dynamics (MD) analysis, as a result, the protein structure was stable during 100 ns. The outcomes highlighted that β-CN protein could form a great bind with 5-FU and Fe3O4 NPs ligands (supporting the zeta potential assay results) by independent binding sites. These results would be helpful insight to construct a potential magnetic nanocarrier β-CN base for 5-FU drug delivery.
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Affiliation(s)
- Ashkan Zare Karizak
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Adeleh Divsalar
- Department of Cell & Molecular Sciences, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran.
| | - Amineh Leilabadi Asl
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran 1477893855, Iran
| | | | - Sergey Shityakov
- ITMO University, Infochemistry Scientific Center, Division of Chemoinformatics, Saint-Petersburg 191002, Russian Federation
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
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Eslami-Farsani R, Farhadian S, Shareghi B, Momeni L. Structural insights into the binding behavior of NiO with myoglobin. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Mohammadi F, Mansouri-Torshizi H, Saeidifar M, Dehghanian E, Skorepova E, Dusek M, Abdi K. Synthesis, characterization, cytotoxicity and DNA/BSA binding of two amino acid palladium(II) complexes derived from alanine and valine. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2021; 41:97-122. [PMID: 34879790 DOI: 10.1080/15257770.2021.2011914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 10/28/2021] [Accepted: 11/23/2021] [Indexed: 12/20/2022]
Abstract
Two novel palladium(II)-amino acid complexes, [Pd(Ala)2]·H2O (PA) and [Pd(Val)2].H2O (PV) (Ala = alanine; Val = valine) were synthesized and characterized through FTIR, UV/Vis, 1H-NMR spectroscopies, CHN analysis, X-ray crystallography and molar conductivity measurement. Furthermore, cytotoxicity of Pd(II) complexes against human leukemia cancer cell line, MOLT4 showed promising cancer cell death (CC50 = 0.71 ± 0.046 µM for PA; CC50 = 0.85 ± 0.063 µM for PV) that were less than cisplatin (1.59 ± 0.25 µM). Moreover, the interaction of both the complexes with DNA and BSA was studied using UV-Vis absorption and emission spectroscopic techniques that demonstrated the bindings occurred via van der Waals forces and hydrogen bond. Furthermore, the fluorescence titration showed that static quenching mechanism plays predominate role in binding process. All results showed that both complexes have more binding tendency to DNA in compared to BSA that can be a significant achievement for further medical purposes as a potential antitumor candidate. Finally, molecular docking simulation was performed for PA and PV complexes with DNA and BSA and demonstrated both complexes bind to the groove of DNA mainly by hydrogen bond and interact with site I of BSA via hydrogen bond as well.
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Affiliation(s)
- Fatemeh Mohammadi
- 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
| | - Maryam Saeidifar
- Nanotechnology and Advanced Materials Department, Materials and Energy Research Center, Karaj, Iran
| | - Effat Dehghanian
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | | | - Michal Dusek
- Institute of Physics ASCR, Prague, Czech Republic
| | - Khatereh Abdi
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
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Feizi-Dehnayebi M, Dehghanian E, Mansouri-Torshizi H. DNA/BSA binding affinity studies of new Pd(II) complex with S-S and N-N donor mixed ligands via experimental insight and molecular simulation: Preliminary antitumor activity, lipophilicity and DFT perspective. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117853] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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13
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Synthesis and characterization of Pd(II) antitumor complex, DFT calculation and DNA/BSA binding insight through the combined experimental and theoretical aspects. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130535] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Feizi-Dehnayebi M, Dehghanian E, Mansouri-Torshizi H. A novel palladium(II) antitumor agent: Synthesis, characterization, DFT perspective, CT-DNA and BSA interaction studies via in-vitro and in-silico approaches. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 249:119215. [PMID: 33262078 DOI: 10.1016/j.saa.2020.119215] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/24/2020] [Accepted: 11/06/2020] [Indexed: 06/12/2023]
Abstract
Since numerous people annually pass away due to cancer, research in this field is essential. Thus a newly made and water like palladium(II) complex of formula [Pd(phen)(acac)]NO3, where phen is 1,10-phenanthroline and acac is acetylacetonato ligand, has been synthesized by the reaction between [Pd(phen)(H2O)2](NO3)2 and sodium salt of acetylacetone in the molar ratio of 1:1. It has been structurally characterized via the methods such as conductivity measurement, elemental analysis and spectroscopic methods (FT-IR, UV-Vis and 1H NMR). The geometry optimization of this complex at the DFT level of theory reveals that Pd(II) atom is situated in a square-planar geometry. The complex has been screened for its antitumor activity against K562 cancer cells which demonstrated efficacious activity. The interaction of above palladium(II) complex with CT-DNA as a target molecule for antitumor agents and BSA as a transport protein was studies by a variety of techniques. The results of UV-Vis absorption and fluorescence emission indicated that the Pd(II) complex interacts with EB + CT-DNA through hydrophobic and with BSA by hydrogen bonding and van der Waals forces at very low concentrations. In these processes, the fluorescence quenching mechanism of both the macromolecules seems to be the combined dynamic and static. The interaction was further supported for CT-DNA by carrying out the gel electrophoresis and viscosity measurement and for BSA by the circular dichroism and Förster resonance energy transfer experiments. Furthermore, results of partition coefficient determination showed that the [Pd(phen)(acac)]NO3 complex is more lipophilic than that of cisplatin. Moreover, molecular docking simulation confirms the obtained results from experimental tests and reveals that the complex tends to be located at the intercalation site of DNA and Sudlow's site I of BSA.
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Affiliation(s)
| | - Effat Dehghanian
- Department of Chemistry, University of Sistan and Baluchestan, Zahedan, Iran.
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Effect of Presence of Aliphatic Glycine in the Anti-cancer Platinum Complex Structure on Human Serum Albumin Binding. J Pharm Innov 2020. [DOI: 10.1007/s12247-020-09508-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Moradi S, Shareghi B, Saboury AA, Farhadian S. Investigation on the interaction of acid phosphatase with putrescine using docking, simulations methods and multispectroscopic techniques. Int J Biol Macromol 2020; 150:90-101. [DOI: 10.1016/j.ijbiomac.2020.02.057] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 02/04/2020] [Accepted: 02/06/2020] [Indexed: 02/06/2023]
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Jafari A, Shareghi B, Hosseini-Koupaei M, Farhadian S. Characterization of osmolyte-enzyme interactions using different spectroscopy and molecular dynamic techniques: Binding of sucrose to proteinase K. Int J Biol Macromol 2020; 151:1250-1258. [DOI: 10.1016/j.ijbiomac.2019.10.171] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 10/01/2019] [Accepted: 10/22/2019] [Indexed: 12/20/2022]
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Mohammadgholi A, Leilabadi-Asl A, Divsalar A, Eslami-Moghadam M. Multi-spectroscopic studies of the interaction of new synthesized platin complex with human carrier protein of serum albumin. J Biomol Struct Dyn 2020; 39:1506-1511. [PMID: 32200700 DOI: 10.1080/07391102.2020.1745690] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Previous reports have shown that protein-drug interaction helps to improve the pharmacokinetics of the drugs. Human serum albumin (HSA) is one of the basic components of blood plasma and it serves as a storage and carrier protein. In the present study, the interaction of a new synthesized Pt [iso]2 complex (cis - [Pt(NH2-Isopentylamine)2(Isopentylglycine)]NO3) with HSA was studied using the spectroscopic methods of fluorescence and circular dichroic (CD) at two different temperatures of 25 and 37 °C. Analysis of the quenching mechanism via Stern-Volmer curve, determination of HSA binding parameters (0.65 × 104 and 2.27 × 104) and standard Gibbs free energy (-25.8, and 21.77) at 25 and 37 °C, respectively, carried out using fluorescence quenching data. Data analysis showed that the static mechanism has the main role in fluorescence quenching. Also, the number of protein binding sites for complex indicated one binding site at two temperatures of 25 and 37 °C. The secondary structure of protein in the presence of different concentrations of Pt(II) complex did not show any significant alterations. Whereas, thermal stability of the HSA was reduced in the presence of complex. Also, thermal analysis obtained the values of ΔG°25 for HSA and HSA in presence of Pt [Iso]2 20, 13, respectively. According to the above results, we concluded that the new synthesized Pt complex can bind to the blood carrier protein of HSA and change the stability of it which can be considered in the design of new drugs.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Azadeh Mohammadgholi
- Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Amineh Leilabadi-Asl
- Faculty of Biological Sciences, Department of Cell & Molecular Sciences, Kharazmi University, Tehran, Iran
| | - Adeleh Divsalar
- Faculty of Biological Sciences, Department of Cell & Molecular Sciences, Kharazmi University, Tehran, Iran
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The modifier action of NiO nanoparticles on the activity, structure, and stability of proteinase K. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02552-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Zaeva AS, Ivanov MA, Gerasimenko AV, Ivanov AV, Antzutkin ON. Dialkyldithiocarbamate platinum(II) complexes of [Pt(S2CNR2)2] (R = iso-C3H7, iso-C4H9): Preparation, 13C CP-MAS NMR, molecular structure, supramolecular self-assembly and thermal behaviour. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114166] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Li B, Wang J, Song H, Wu H, Chen X, Ma X. Synthesis, crystal structure, and BSA interaction with a new Co(II) complex based on 5-(trifluoromethyl)pyridine-2-carboxylic acid. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1663836] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Bing Li
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan, China
- Department of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, China
| | - Jiakai Wang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan, China
- Department of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, China
| | - Huan Song
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan, China
- Department of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, China
| | - Huanping Wu
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan, China
| | - Xiaoyan Chen
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan, China
- Department of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, China
| | - Xiaoxia Ma
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan, China
- Department of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, China
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22
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Asgharzadeh S, Shareghi B, Farhadian S. Experimental and theoretical investigations on the interaction of l-methionine molecules with α-chymotrypsin in the aqueous solution using various methods. Int J Biol Macromol 2019; 131:548-556. [PMID: 30876904 DOI: 10.1016/j.ijbiomac.2019.03.080] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/11/2019] [Accepted: 03/11/2019] [Indexed: 11/17/2022]
Abstract
l-Methionine (l-Met) is one of the necessary amino acids that play unparalleled roles, influencing both the protein structure and metabolism. Understanding the interactions between proteins and small molecules can be realized by various perspectives, and this is significant for the progression of basic sciences and drug development. In this study, the variations in the stability, function, and structure of α-Chymotrypsin (α-Chy) in the presence of l-Met were investigated using spectroscopic and computational approaches. The results of the UV-vis absorption demonstrated that α-Chy had a maximum peak at 280 nm due to the Trp residue. Hyperchromism shift was seen in the presence of l-Met. Ground state system was formed in the presence of l-Met, as confirmed by the fluorescence studies. Fluorescence variations also revealed static quenching. The CD spectra also represented the alteration of the enzyme with an increase in the α-helix and a decrease in the β-sheet. The activity of α-Chy was incremented in the presence of l-Met. Therefore, l-Met served as an activator. Molecular docking results also indicated a negative amount for the Gibbs free energy of the binding of l-Met to the enzyme. α-Chy became more stable in the presence of l-Met, based on the molecular dynamics simulation.
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Affiliation(s)
- Sanaz Asgharzadeh
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, P. O. Box.115, Iran
| | - Behzad Shareghi
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, P. O. Box.115, Iran.
| | - Sadegh Farhadian
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, P. O. Box.115, Iran; Central Laboratory, Shahrekord University, Shahrekord, Iran.
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23
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Evaluation of maltose binding to proteinase K: Insights from spectroscopic and computational approach. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.170] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Mohammadi M, Shareghi B, Akbar Saboury A, Farhadian S. Spermine as a possible endogenous allosteric activator of carboxypeptidase A: multispectroscopic and molecular simulation studies. J Biomol Struct Dyn 2019; 38:101-113. [DOI: 10.1080/07391102.2019.1567387] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mozhgan Mohammadi
- Department of Biology, Faculty of Sciences, Shahrekord University, Shahrekord, Iran
| | - Behzad Shareghi
- Department of Biology, Faculty of Sciences, Shahrekord University, Shahrekord, Iran
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Sadegh Farhadian
- Department of Biology, Faculty of Sciences, Shahrekord University, Shahrekord, Iran
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25
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Mansouri-Torshizi H, Zareian-Jahromi S, Abdi K, Saeidifar M. Nonionic but water soluble, [Glycine-Pd-Alanine] and [Glycine-Pd-Valine] complexes. Their synthesis, characterization, antitumor activities and rich DNA/HSA interaction studies. J Biomol Struct Dyn 2018; 37:3566-3582. [PMID: 30284510 DOI: 10.1080/07391102.2018.1520647] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Two novel, neutral and water soluble Pd(II) complexes of formula [Pd(Gly)(Ala)] (1) and [Pd(Gly)(Val)] (2) (Gly, Ala, and Val are anionic forms of glycine, alanine, and valine amino acids, respectively) have been synthesized and characterized by FT-IR, UV-Vis, 1H-NMR, elemental analysis, and molar conductivity measurement. The data revealed that each amino acid binds to Pd(II) through the nitrogen of -NH2 and the oxygen of -COO- groups and acts as a bidentate chelate. These complexes have been assayed against leukemia cells (K562) using MTT method. The results indicated that both of the complexes display more cytotoxicity than the well-known anticancer drug, cisplatin. The interaction of the compounds with calf thymus DNA (CT-DNA) and human serum albumin (HSA) were assayed by a series of experimental techniques including electronic absorption, fluorescence, viscometry, gel electrophoresis, and FT-IR. The results indicated that the two complexes have interesting binding propensities toward CT-DNA as well as HSA and the binding affinity of (1) is more than (2). The fluorescence data indicated that both complexes strongly quench the fluorescence of ethidium bromide-DNA system as well as the intrinsic fluorescence of HSA via static quenching procedures. The thermodynamic parameters (ΔH°, ΔS°, and ΔG°) calculated from the fluorescence studies showed that hydrogen bonds and van der Waals interactions play a major role in the binding of the complexes to DNA and HSA. We suggest that both of the Pd(II) complexes exhibit the groove binding mode with CT-DNA and interact with the main binding pocket of HSA. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Hassan Mansouri-Torshizi
- a Department of Chemistry, Faculty of Science , University of Sistan and Baluchestan , Zahedan , Iran
| | - Sareh Zareian-Jahromi
- a Department of Chemistry, Faculty of Science , University of Sistan and Baluchestan , Zahedan , Iran
| | - Khatereh Abdi
- a Department of Chemistry, Faculty of Science , University of Sistan and Baluchestan , Zahedan , Iran
| | - Maryam Saeidifar
- b Department of Nanotechnology and Advanced Materials , Materials and Energy Research Center , Karaj , Iran
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26
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Hosseini-Koupaei M, Shareghi B, Saboury AA, Davar F, Sirotkin VA, Hosseini-Koupaei MH, Enteshari Z. Catalytic activity, structure and stability of proteinase K in the presence of biosynthesized CuO nanoparticles. Int J Biol Macromol 2018; 122:732-744. [PMID: 30408449 DOI: 10.1016/j.ijbiomac.2018.11.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 10/14/2018] [Accepted: 11/01/2018] [Indexed: 12/18/2022]
Abstract
Here, CuO nanoparticles were synthesized using Sambucus nigra (elderberry) fruit extract. Further, the binding of proteinase K, as a model enzyme with green synthesized nanoparticles was investigated. The results demonstrated that the structural changes in enzyme were induced by the binding of nanoparticles. These changes were accompanied by the decrease in the Michaelis-Menten constant at 298 K. This means that the enzyme affinity for the substrate was increased. Thermodynamic parameters of protein stability and protein-ligand binding were estimated from the spectroscopic measurements at 298-333 K. Depending on the temperature, CuO nanoparticles showed a dual effect on the thermodynamic stability and binding affinity of enzyme. Nanoparticles increase the stability of the native state of enzyme at room temperature. On the other hand, nanoparticles stabilize the unfolded state of enzyme at 310-333 K. An overall favorable Gibbs energy change was observed for the binding process at 298-333 K. The enzyme-nanoparticle binding is enthalpically driven at room temperature. It was concluded that hydrogen bonding plays a key role in the interaction of enzyme with nanoparticles at 298-310 K. At higher temperatures, the protein-ligand binding is entropically driven. This means that hydrophobic association plays a major role in the proteinase K-CuO binding at 310-333 K.
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Affiliation(s)
- Mansoore Hosseini-Koupaei
- Department of Biology, Faculty of Science, University of Shahrekord, Shahrekord, P. O. Box .115, Iran; Department of Biology, Naghshe Jahan Institute of Higher Education, Isfahan, Iran
| | - Behzad Shareghi
- Department of Biology, Faculty of Science, University of Shahrekord, Shahrekord, P. O. Box .115, Iran
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
| | - Fatemeh Davar
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
| | - Vladimir A Sirotkin
- Kazan Federal University, A.M. Butlerov Institute of Chemistry, Kremlevskaya str., 18, Kazan 420008, Russia
| | | | - Zahra Enteshari
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
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27
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Multiple Spectroscopic, Docking and Cytotoxic Study of a Synthesized 2,2' Bipyridin Phenyl Isopentylglycin Pt(II) Nitrate Complex: Human Serum Albumin and Breast Cancer Cell Line of MDA-MB231 as Targets. J Fluoresc 2018; 28:551-559. [PMID: 29476398 DOI: 10.1007/s10895-018-2216-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Accepted: 01/22/2018] [Indexed: 10/18/2022]
Abstract
In the present study, the biological activities of a new synthesized Pt(II)-complex, 2,2' bipyridinphenyl isopentylglycin Pt(II) nitrate was investigated via its interaction with the most important blood carrier protein of human serum albumin (HSA), using fluorescence and Far-UV circular dichroism (CD) spectroscopic techniques and also molecular docking. Moreover, cytotoxicity activity of the complex was studied against breast cancer cell line of MDA MB231 using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The Pt(II)-complex has a strong ability to quench the intrinsic fluorescence of HSA through a static quenching mechanism. According fluorescence quenching data, the binding parameters of the interaction were calculated and showed that hydrophobic interaction has an important role. The molecular docking results in coherent with fluorescence measurements illustrated that Pt(II) complex can bind to HSA at one position that located in the hydrophobic cavity of groove between drug site I and II. Also, experimental data on driving force in binding site was confirmed whereas theoretical results demonstrated Pt(II) complexinteract to HSA by hydrophobic interaction. Far-UV-CD results showed that Pt(II)-complex induced an increasing in the content of α-helical structure of the protein and stabilized it. Also, MTT assay represented growth inhibitory effect of the complex toward the breast cancer cell line.
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28
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Hadian Rasanani S, Eslami Moghadam M, Soleimani E, Divsalar A, Tarlani A. Improving activity of anticancer oxalipalladium analog by the modification of oxalate group with isopentylglycine. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1395417] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Sara Hadian Rasanani
- Inorganic Chemistry Research Laboratory, Faculty of Chemistry, Shahrood University of Technology, Shahrood, Iran
| | | | - Esmaiela Soleimani
- Inorganic Chemistry Research Laboratory, Faculty of Chemistry, Shahrood University of Technology, Shahrood, Iran
| | - Adeleh Divsalar
- Faculty of Biological Sciences, Department of Cell & Molecular Biology, Kharazmi University, Tehran, Iran
| | - Aliakbar Tarlani
- Chemistry & Chemical Engineering Research Center of Iran, Tehran, Iran
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29
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Bai L, Gao C, Liu Q, Yu C, Zhang Z, Cai L, Yang B, Qian Y, Yang J, Liao X. Research progress in modern structure of platinum complexes. Eur J Med Chem 2017; 140:349-382. [PMID: 28985575 DOI: 10.1016/j.ejmech.2017.09.034] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 07/18/2017] [Accepted: 09/18/2017] [Indexed: 10/18/2022]
Abstract
Since the antitumor activity of cisplatin was discovered in 1967 by Rosenberg, platinum-based anticancer drugs have played an important role in chemotherapy in clinic. Nevertheless, platinum anticancer drugs also have caused severe side effects and cross drug resistance which limited their applications. Therefore, a significant amount of efforts have been devoted to developing new platinum-based anticancer agents with equal or higher antitumor activity but lower toxicity. Until now, a large number of platinum-based complexes have been prepared and extensively investigated in vitro and in vivo. Among them, some platinum-based complexes revealing excellent anticancer activity showed the potential to be developed as novel type of anticancer agents. In this account, we present such platinum-based anticancer complexes which owning various types of ligands, such as, amine carrier ligands, leaving groups, reactive molecule, steric hindrance groups, non-covalently binding platinum (II) complexes, Platinum(IV) complexes and polynuclear platinum complexes. Overall, platinum-based anticancer complexes reported recently years upon modern structure are emphasized.
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Affiliation(s)
- Linkui Bai
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Chuanzhu Gao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China.
| | - Qinghua Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Congtao Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Zhuxin Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Linxiang Cai
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Bo Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Yunxu Qian
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Jian Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Xiali Liao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
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30
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Mansouri-Torshizi H, Zareian-Jahromi S, Ghahghaei A, Shahraki S, Khosravi F, Heidari Majd M. Palladium(II) complexes of biorelevant ligands. Synthesis, structures, cytotoxicity and rich DNA/HSA interaction studies. J Biomol Struct Dyn 2017; 36:2787-2806. [PMID: 28849726 DOI: 10.1080/07391102.2017.1372309] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
In this work, a pair of new palladium(II) complexes, [Pd(Gly)(Phe)] and [Pd(Gly)(Tyr)], (where Gly is glycine, Phe is phenylalanine, and Tyr is tyrosine) were synthesized and characterized by UV-Vis, FT-IR, elemental analysis, 1H-NMR, and conductivity measurements. The detailed 1H NMR and infrared spectral studies of these Pd(II) complexes ascertain the mode of binding of amino acids to palladium through nitrogen of -NH2 and oxygen of -COO- groups as bidentate chelates. The Pd(II) complexes have been tested for in vitro cytotoxicity activities against cancer cell line of K562. Interactions of these Pd(II) complexes with CT-DNA and human serum albumin were identified through absorption/emission titrations and gel electrophoresis which indicated significant binding proficiency. The binding distance (r) between these synthesized complexes and HSA based on Forster's theory of non-radiation energy transfer were calculated. Alterations of HSA secondary structure induced by complexes were confirmed by FT-IR measurements. The results of emission quenching at three temperatures have revealed that the quenching mechanism of these Pd(II) complexes with CT-DNA and HSA were the static and dynamic quenching mechanism, respectively. Binding constants (Kb), binding site number (n), and the corresponding thermodynamic parameters were calculated and revealed that the hydrogen binding and hydrophobic forces played a major role when Pd(II) complexes interacted with DNA and HSA, respectively. We bid that [Pd(Gly)(Phe)] and [Pd(Gly)(Tyr)] complexes exhibit the groove binding with CT-DNA and interact with the main binding pocket of HSA. The complexes follow the binding affinity order of [Pd(Gly)(Tyr)] > [Pd(Gly)(Phe)] with CT-DNA- and HSA-binding.
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Affiliation(s)
- Hassan Mansouri-Torshizi
- a Faculty of Science, Department of Chemistry , University of Sistan and Baluchestan , Zahedan , Iran
| | - Sareh Zareian-Jahromi
- a Faculty of Science, Department of Chemistry , University of Sistan and Baluchestan , Zahedan , Iran
| | - Arezou Ghahghaei
- b Faculty of Science, Department of Biology , University of Sistan and Baluchestan , Zahedan , Iran
| | - Somaye Shahraki
- c Department of Chemistry , University of Zabol , Zabol , Iran
| | - Fatemeh Khosravi
- a Faculty of Science, Department of Chemistry , University of Sistan and Baluchestan , Zahedan , Iran
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31
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Mansouri-Torshizi H, Khosravi F, Ghahghaei A, Shahraki S, Zareian-Jahromi S. Investigation on the interaction of newly designed potential antibacterial Zn(II) complexes with CT-DNA and HSA. J Biomol Struct Dyn 2017; 36:2713-2737. [DOI: 10.1080/07391102.2017.1363086] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | - Fatemeh Khosravi
- Department of Chemistry, University of Sistan and Baluchestan, Zahedan, Iran
| | - Arezou Ghahghaei
- Department of Biology, University of Sistan and Baluchestan, Zahedan, Iran
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32
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Dustkami M, Mansouri-Torshizi H. Refolding and unfolding of CT-DNA by newly designed Pd(II) complexes. Their synthesis, characterization and antitumor effects. Int J Biol Macromol 2017; 99:319-334. [DOI: 10.1016/j.ijbiomac.2017.02.063] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 02/16/2017] [Accepted: 02/17/2017] [Indexed: 11/30/2022]
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33
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Zareian-Jahromi S, Mansouri-Torshizi H. Synthesis, characterization, DNA and HSA binding studies of isomeric Pd (II) antitumor complexes using spectrophotometry techniques. J Biomol Struct Dyn 2017; 36:1329-1350. [DOI: 10.1080/07391102.2017.1322536] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sareh Zareian-Jahromi
- 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
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34
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Hosseini-Koupaei M, Shareghi B, Saboury AA, Davar F. Molecular investigation on the interaction of spermine with proteinase K by multispectroscopic techniques and molecular simulation studies. Int J Biol Macromol 2017; 94:406-414. [DOI: 10.1016/j.ijbiomac.2016.10.038] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 09/30/2016] [Accepted: 10/14/2016] [Indexed: 11/17/2022]
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35
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A spectroscopic and thermal stability study on the interaction between putrescine and bovine trypsin. Int J Biol Macromol 2017; 94:145-153. [DOI: 10.1016/j.ijbiomac.2016.10.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 10/02/2016] [Accepted: 10/05/2016] [Indexed: 01/25/2023]
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36
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Momeni L, Shareghi B, Saboury AA, Farhadian S. Comparative Studies on the Interaction of Spermidine with Bovine Trypsin by Multispectroscopic and Docking Methods. J Phys Chem B 2016; 120:9632-41. [DOI: 10.1021/acs.jpcb.6b06648] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lida Momeni
- Department
of Biology, Faculty of Science, University of Payam Noor, Tehran 19166, Iran
| | - Behzad Shareghi
- Department
of Biology, Faculty of Science, University of Shahrekord, P.O. Box 11, Shahrekord 88186/34141, Iran
| | | | - Sadegh Farhadian
- Department
of Biology, Faculty of Science, University of Shahrekord, P.O. Box 11, Shahrekord 88186/34141, Iran
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37
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Interaction of TiO2 nanoparticle with trypsin analyzed by kinetic and spectroscopic methods. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1772-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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38
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Momeni L, Shareghi B, Saboury AA, Farhadian S. The effect of spermine on the structure, thermal stability and activity of bovine pancreatic trypsin. RSC Adv 2016. [DOI: 10.1039/c6ra10549a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This work studied the interaction between spermine and trypsin at pH 8.0.
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Affiliation(s)
- Lida Momeni
- Department of Biology
- Faculty of Science
- University of Payam Noor
- Iran
- Department of Biology
| | - Behzad Shareghi
- Department of Biology
- Faculty of Science
- University of Shahrekord
- Shahrekord
- Iran
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics
- University of Tehran
- Tehran
- Iran
- Center of Excellence in Biothermodynamics
| | - Sadegh Farhadian
- Department of Biology
- Faculty of Science
- University of Shahrekord
- Shahrekord
- Iran
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39
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Koupaei MH, Shareghi B, Saboury AA, Davar F, Semnani A, Evini M. Green synthesis of zinc oxide nanoparticles and their effect on the stability and activity of proteinase K. RSC Adv 2016. [DOI: 10.1039/c5ra24862k] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The use of environmentally benign materials for the synthesis of zinc oxide nanoparticles offers numerous benefits of eco-friendliness and compatibility for pharmaceutical, biotechnological and biological applications.
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Affiliation(s)
| | - Behzad Shareghi
- Department of Biology
- Faculty of Science
- University of Shahrekord
- Shahrekord
- Iran
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics
- University of Tehran
- Tehran
- Iran
- Center of Excellence in Biothermodynamics
| | - Fateme Davar
- Department of Chemistry
- Isfahan University of Technology
- Isfahan
- Iran
| | - Aboulfazl Semnani
- Department of Chemistry
- Faculty of Science
- University of Shahrekord
- Shahrekord
- Iran
| | - Mina Evini
- Center of Excellence in Biothermodynamics
- University of Tehran
- Tehran
- Iran
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