1
|
Shankar DS, Rambabu A, M S, Lakshmi PVA, Shivaraj. Copper(II) Complexes Derived from Schiff Bases Containing 4-Methylbenzylamine as a Core Unit: Cytotoxicity, pBR322-DNA Studies, Biological Assays, and Quantum Chemical Parameters. Chem Biodivers 2023; 20:e202300030. [PMID: 37254615 DOI: 10.1002/cbdv.202300030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 05/23/2023] [Accepted: 05/27/2023] [Indexed: 06/01/2023]
Abstract
Bivalent copper complexes, [Cu(SB1 )2 ] 1 (SB1 =(2-(4-methylbenzylimino)methyl)-5-methylphenol, [Cu(SB2 )2 ] 2 (SB2 =(2-(4-methylbenzylimino)methyl)-4-bromolphenol), and [Cu(SB3 )2 ] 3 (SB3 =(2-(4-methylbenzylimino)methyl)-4,6-dibromophenol) were synthesized using the Schiff bases prepared from 4-methylbenzylamine (p-tolylmethanamine). These were characterized using a variety of spectro-analytical methods. For all copper complexes, a square planar geometry was determined through spectral analyses. Utilizing molecular orbital energies, the stability of the copper complexes was calculated from quantum chemical characteristics. The kinetic and thermal degradation parameters were calculated from the thermograms. Studies on DNA binding interactions, such as UV absorption and emission, have shown that the manner of DNA binding is intercalative, and the binding constant (Kb ) order is 3>2>1. Under oxidative and photolytic techniques, the copper complexes outperform the parent Schiff bases in their ability to cleave double-stranded pBR322 DNA. When tested for cytotoxicity on the KB3 and MCF7 cell lines, complexes displayed greater activity than their parent ligands. Studies on the complexes' in-vitro antibacterial and antioxidant activity showed that they are significantly more powerful than the parent ligands.
Collapse
Affiliation(s)
- Dasari Shiva Shankar
- Department of Chemistry, Osmania University, Hyderabad, 500007, Telangana, India
- Deartment of Chemistry, Post Graduate College, Osmania University, 502249, Mirzapur
| | - Aveli Rambabu
- Department of Science and Humanities, St. Martin's Engineering College, Dhulapally, Hyderabad, 500100, Telangana, India
| | - Swathi M
- Department of Chemistry, Osmania University, Hyderabad, 500007, Telangana, India
| | - P V Anantha Lakshmi
- Department of Chemistry, Osmania University, Hyderabad, 500007, Telangana, India
| | - Shivaraj
- Department of Chemistry, Osmania University, Hyderabad, 500007, Telangana, India
| |
Collapse
|
2
|
Synthesis, characterization, X-ray crystal structure, antioxidant, antimicrobial, and DNA binding interaction studies of novel Copper (II)-isoxazole binary complexes. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
|
3
|
El-Attar HG, Salem MA, Ibrahim SA, Bakr EA. Highly efficient and recyclable novel spindles Fe2O3@SiO2/In2O3 nanomagnetic catalyst designed for green synthesis of azomethine compounds. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04894-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
AbstractA novel and reusable nanomagnetic catalyst, Fe2O3@SiO2/In2O3, was synthesized by a facile chemical approach in three successive steps. The nanocatalyst was characterized by FT-IR, XRD, SEM, EDX, TEM, and VSM. The XRD pattern displays the characteristic peaks of Fe2O3 and SiO2, accompanied by new peaks assigned to different planes of In2O3 that confirm the formation of In2O3 on the surface of Fe2O3@SiO2 core/shell spindles. The TEM micrographs show spindle-like particles of Fe2O3 covered with SiO2 shell, and the In2O3 nanoparticles in an average diameter of 20 nm are hung on the surface of the Fe2O3@SiO2. The nanomagnetic catalyst Fe2O3@SiO2/In2O3 was used for the transformation of the (4-nitrophenyl)-1-phenyl-1H-pyrazole-5-amine, and chalcones derivatives, into valuable azomethine compounds of 3-(substituted)-1-(pyridine-2-yl)allylidene)-3-(4-nitrophenyl)-1-phenyl-1H-pyrazole-5-amine with high rate and efficient catalyst recovery. The yield obtained through the catalytic route reached 90–95% in shorter reaction times compared with uncatalyzed reaction method.
Graphical abstract
Collapse
|
4
|
Combined experimental and theoretical analyses on design, synthesis, characterization, and in vitro cytotoxic activity evaluation of some novel imino derivatives containing pyrazolone ring. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
5
|
Jyothi P, Sumalatha V, Rajitha D. Cobalt (II) complexes with N-methyl thio semicarbazide Schiff bases: Synthesis, Spectroscopic investigation, Cytotoxicity, DNA binding and incision, anti-bacterial and anti-fungal studies. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
6
|
Lanthanide (III) complexes (Ln = Er and Yb) based on polypyridyl ligand: Synthesis, crystal structure, DNA-binding activity and interaction with human serum protein in vitro. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
7
|
Kar K, Ghosh D, Kabi B, Chandra A. A concise review on cobalt Schiff base complexes as anticancer agents. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115890] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
8
|
Metformin-Derived Water-Soluble Cobalt Complexes: Thermal, Spectroscopic, DNA Interaction, and Molecular Docking Studies. Appl Biochem Biotechnol 2022; 194:2650-2671. [PMID: 35235135 DOI: 10.1007/s12010-022-03862-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 02/24/2022] [Indexed: 11/02/2022]
Abstract
Novel three water-soluble cobalt (II) complexes of type [Co(metf)(o-phen)2]Cl2 (1), [Co(metf)(opda)2]Cl2 (2), and [Co(metf)(2-2'bipy)2]Cl2 (3) (Metf, metformin; o-phen, ortho-phenanthroline; opda, ortho-phenylenediamine; 2,2'-bipy, 2,2'-bipyridine) were synthesized and characterized by various analytical and spectral techniques. Based on these studies, octahedral geometry is assigned to these complexes. The stability of the complexes has been calculated from quantum chemical parameters using HOMO-LUMO energies. Thermal degradation pattern of the compounds was studied and Coats-Redfern method is used to determine kinetic parameters for complexes 1, 2, and 3 from thermal studies. The DNA interaction of these complexes was investigated by absorption, emission, and viscosity studies. From the spectral data, it was concluded that the complexes bind to DNA through groove mode of binding. The intrinsic binding constants (Kb) from absorption spectroscopy were 2.49 × 104, 2.48 × 104, and 2.64 × 104 M-1 for 1, 2, and 3, respectively, and Stern-Volmer quenching constants (Ksv) from emission spectroscopy were 0.21, 0.20, and 0.13, respectively. These complexes were screened for nuclease activity of pUC19 DNA, in the presence of H2O2. Discovery studio 2.1 software was used to evaluate binding affinity and interaction pattern of complexes with B-DNA receptor protein and the maximum dock score is seen for complex 2.
Collapse
|
9
|
Physicochemical and Theoretical Characterization of a New Small Non-Metal Schiff Base with a Differential Antimicrobial Effect against Gram-Positive Bacteria. Int J Mol Sci 2022; 23:ijms23052553. [PMID: 35269699 PMCID: PMC8910636 DOI: 10.3390/ijms23052553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/17/2022] [Accepted: 02/20/2022] [Indexed: 11/17/2022] Open
Abstract
Searching for adequate and effective compounds displaying antimicrobial activities, especially against Gram-positive bacteria, is an important research area due to the high hospitalization and mortality rates of these bacterial infections in both the human and veterinary fields. In this work, we explored (E)-4-amino-3-((3,5-di-tert-butyl-2-hydroxybenzylidene)amino) benzoic acid (SB-1, harboring an intramolecular hydrogen bond) and (E)-2-((4-nitrobenzilidene)amino)aniline (SB-2), two Schiff bases derivatives. Results demonstrated that SB-1 showed an antibacterial activity determined by the minimal inhibitory concentration (MIC) against Staphylococcus aureus, Enterococcus faecalis, and Bacillus cereus (Gram-positive bacteria involved in human and animal diseases such as skin infections, pneumonia, diarrheal syndrome, and urinary tract infections, among others), which was similar to that shown by the classical antibiotic chloramphenicol. By contrast, this compound showed no effect against Gram-negative bacteria (Klebsiella pneumoniae, Escherichia coli, and Salmonella enterica). Furthermore, we provide a comprehensive physicochemical and theoretical characterization of SB-1 (as well as several analyses for SB-2), including elemental analysis, ESMS, 1H and 13C NMR (assigned by 1D and 2D techniques), DEPT, UV-Vis, FTIR, and cyclic voltammetry. We also performed a computational study through the DFT theory level, including geometry optimization, TD-DFT, NBO, and global and local reactivity analyses.
Collapse
|
10
|
Synthesis, structural analysis, in vitro antioxidant, antimicrobial activity and molecular docking studies of transition metal complexes derived from Schiff base ligands of 4-(benzyloxy)-2-hydroxybenzaldehyde. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-021-04644-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
11
|
Abdel-Rahman LH, Shaker S. Adam M, Al-Zaqri N, Shehata MR, El-Sayed Ahmed H, Mohamed SK. Synthesis, characterization, biological and docking studies of ZrO(II), VO(II) and Zn(II) complexes of a halogenated tetra-dentate Schiff base. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103737] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
12
|
Karumban KS, Muley A, Raut R, Gupta P, Giri B, Kumbhakar S, Misra A, Maji S. Mononuclear Co(II) polypyridyl complexes: synthesis, molecular structure, DNA binding/cleavage, radical scavenging, docking studies and anticancer activities. Dalton Trans 2022; 51:7084-7099. [DOI: 10.1039/d1dt04144d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mononuclear Co(II) complexes [CoII(L)Cl2]; 1, [CoII(L)(bpy)Cl]PF6; 2, [CoII(L)(phen)Cl]PF6; 3 and [CoII(L)(pic)Cl]; 4, (where L = N,N-bis(pyridin-2-ylmethyl)aniline, bpy = 2,2/-bipyridine, phen = 1,10-phenanthroline, pic = picolinic acid) were systematically synthesized and...
Collapse
|
13
|
Rambabu A, Daravath S, Shankar DS, Shivaraj. DNA-binding, -cleavage and antimicrobial investigation on mononuclear Cu(II) Schiff base complexes originated from Riluzole. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
14
|
Venkateswarlu K, Daravath S, Ramesh G, Lakshmi PVA, Shivaraj. Investigation of DNA binding and bioactivities of furan cored Schiff base Cu (II), Ni (II), and Co (III) complexes: Synthesis, characterization and spectroscopic properties. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6326] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
| | | | - Gali Ramesh
- Department of Chemistry Osmania University Hyderabad India
| | | | - Shivaraj
- Department of Chemistry Osmania University Hyderabad India
| |
Collapse
|
15
|
Ismail BA, Nassar DA, Abd El–Wahab ZH, Ali OA. Synthesis, characterization, thermal, DFT computational studies and anticancer activity of furfural-type schiff base complexes. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129393] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
16
|
Ender Biçer, Billy TA, Macit M. Voltammetric and Docking Investigation of the Binding Interaction between (E)-1-[(2-Phenoxyphenylimino)methyl]naphthalen-2-ol and Calf Thymus DNA. RUSS J ELECTROCHEM+ 2021. [DOI: 10.1134/s1023193520120046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
17
|
Ganji N, Daravath S, Rambabu A, Venkateswarlu K, Shiva Shankar D, Shivaraj. Exploration of DNA interaction, antimicrobial and antioxidant studies on binary transition metal complexes with isoxazole Schiff bases: Preparation and spectral characterization. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108247] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
18
|
Synthesis, spectral and thermo-kinetics explorations of Schiff-base derived metal complexes. OPEN CHEM 2020. [DOI: 10.1515/chem-2020-0168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractSchiff-base ligand, 2,6-bis(benzimino)-4-phenyl-1,3,5-triazine (L), and its transition metal complexes of Co(ii), Ni(ii), and Cu(ii) were synthesized by refluxing the reaction mixture and its analytical, spectral, and thermogravimetric characteristics were explored by various techniques: AAS, FT-IR, UV-vis, TG-DTG, CHNS/O, and VSM. It was observed that all the metal containing complexes are non-electrolytic, mononuclear, and paramagnetic in nature, confirmed by the molar conductance and magnetic susceptibility measurements. Optical spectral data were used to investigate the geometrical and spectral parameters of [Co(L)(ac)2], [Ni(L)(ac)2], [Cu(L)(ac)2], [Cu(L)(acac)2], and [Cu(L)(fmc)2] complexes. Simultaneous thermal analyses (TG-DTG) in nitrogen atmosphere reveal that the ligand decomposes in one step, [Co(L)(ac)2], [Ni(L)(ac)2], and [Cu(L) (ac)2] complexes are decomposed in three steps, whereas [Cu(L)(acac)2] and [Cu(L) (fmc)2] are decomposed in five and two steps, respectively. In addition, activation energy (Ea) and pre-exponential factor (ln A) were evaluated by TG-DTG decomposition steps of compounds using the Coats–Redfern formula. Enthalpy (∆H), entropy (∆S), and Gibbs free energy (∆G) of the as-prepared metal complexes were also speculated by various thermodynamic equations.
Collapse
|
19
|
An Investigation on DNA Binding, Cleavage and Antimicrobial Properties of Mononuclear Co(II), Ni(II) and Cu(II) Complexes Derived from N, O Donor Schiff Bases. J Fluoresc 2020; 30:1397-1410. [DOI: 10.1007/s10895-020-02614-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 08/24/2020] [Indexed: 12/18/2022]
|
20
|
Mirzaei-Kalar Z, Khandar AA, White JM, Abolhasani H, Komeili Movahhed T, Best SP, Jouyban A. Investigation of biological activity of nickel (II) complex with naproxen and 1,10-phenanthroline ligands. J Biomol Struct Dyn 2020; 39:6939-6954. [PMID: 32772847 DOI: 10.1080/07391102.2020.1804454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
After the accidental discovery of cis-platinum, extensive attempts have centralized on the rational design of metallic compounds for cancer treatment. Here a solvent-dependent complex of nickel (II) with 1,10-phenanthroline and naproxen, [Ni(1,10-phenanthroline)(naproxen)2(solvent)], solvent = 83% H2O and 17% EtOH in the crystal structure, has been synthesized and specified by the X-ray structure analysis. It's in vitro DNA binding was inspected by the multispectroscopic methods and gel electrophoresis. The data of DNA-viscosity and competition fluorimetric test by methylene blue (MB) and Hoechst 33258 confirm groove binding mode of the complex to CT-DNA. Comparison of the results of this binding study with previous work revealed that the mode of binding of small compounds to DNA is highly influenced by the structure of the compounds. The DNA cleavage potency of the complex was appraised by the agarose gel electrophoretic and it was found that the complex does not have any momentous cleavage potency on the pUC18 plasmid DNA. The cytotoxicity of the complex on HT 29, HepG2 and HEK-293 cell lines by MTT method indicates that %inhibition of the complex on HT 29 is better than HepG2, compared with cisplatin drug. On HEK-293 cells, %inhibition growth of normal cells of the complex is less than cisplatin. Flow cytometry analysis of the complex on the HT 29 cells indicated the apoptosis cell death. RT-PCR studies revealed down-regulation of BCL2 expression, while the expression of BAX, caspase 3 and BAX/BCL2 genes was up-regulated in HT 29 cells by the complex. HighlightsA solvent-dependent nickel (II) with naproxen and 1,10-phenanthroline with aqueous solubility was synthesized and characterized.All experimental results indicate a groove mode of binding of the complex to CT-DNA.Potential biological characteristics confirmed that the complex is a promising candidate as anticancer agent.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Zeinab Mirzaei-Kalar
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Ali Akbar Khandar
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Jonathan M White
- School of Chemistry and BIO-21 Molecular Science Institute, University of Melbourne, Parkville, Victoria, Australia
| | - Hoda Abolhasani
- Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
| | | | - Stephen P Best
- School of Chemistry and BIO-21 Molecular Science Institute, University of Melbourne, Parkville, Victoria, Australia
| | - Abolghasem Jouyban
- Phamaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.,Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
21
|
Shahabadi N, Mahdavi M, Momeni BZ. Multispectroscopic analysis, atomic force microscopy, molecular docking and molecular dynamic simulation studies of the interaction between [SnMe 2Cl 2(Me 2phen)] complex and ct-DNA in the presence of glucose. J Biomol Struct Dyn 2020; 39:5068-5082. [PMID: 32588754 DOI: 10.1080/07391102.2020.1784793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In this study, the spectroscopic methods (UV-vis, fluorimetric), Atomic force microscopy, and computational studies (molecular docking and molecular dynamic simulation) were used to investigate the interaction of [SnMe2Cl2(Me2phen)] complex with CT-DNA in the presence of glucose. The results showed the complex in the medium containing glucose has less effect on calf thymus DNA (ct-DNA) than the medium without glucose. Cytotoxicity of [SnMe2Cl2(Me2phen)] complex on MCF-7 cells was examined and showed Sn(IV) complex possesses potential cytotoxicity against this cell line. Molecular docking study showed that Sn(IV) complex interacts with DNA by groove binding mode. Radius of gyration (Rg) was smaller upon binding of the Sn(IV) complex suggesting a more compact structure of DNA in the presence of Sn(IV) complex.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Nahid Shahabadi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran.,Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Mahdavi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
| | - Badri Z Momeni
- Faculty of Chemistry, K.N. Toosi University of Technology, Tehran, Iran
| |
Collapse
|
22
|
Rao NN, kishan E, Gopichand K, Nagaraju R, Ganai AM, Rao PV. Design, synthesis, spectral characterization, DNA binding, photo cleavage and antibacterial studies of transition metal complexes of benzothiazole Schiff base. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.cdc.2020.100368] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
23
|
Farooqi SI, Arshad N, Channar PA, Perveen F, Saeed A, Larik FA, Javed A, Yamin M. New aryl Schiff bases of thiadiazole derivative of ibuprofen as DNA binders and potential anticancer drug candidates. J Biomol Struct Dyn 2020; 39:3548-3564. [PMID: 32397836 DOI: 10.1080/07391102.2020.1766569] [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: 01/01/2023]
Abstract
The work presented in this paper describes the synthesis of two new aryl Schiff bases [(E)-N-(4-(benzyloxy)-3-methoxybenzylidene)-5-(1-(4-isobutylphenyl)ethyl)-1,3,4-thiadiazol-2-amine] (ASB-1) and [(E)-N-(4-(benzyloxy)benzylidene)-5-(1-(4-isobutylphenyl)ethyl)-1,3,4-thiadiazol-2-amine] (ASB-2). These compounds were characterized by different analytical techniques and then studied for DNA binding. Binding studies were carried out at neutral pH (7.0) and at 37 °C by theoretical and experimental methods including DFT, molecular docking, spectroscopy (UV-visible, fluorescence), cyclic voltammetry (CV) and viscometry. Further investigations of these compounds were done on hepatocellular carcinoma; Huh-7 cancer cell line. Binding constant, free energy change and binding site size, i.e. Kb, ΔG and n were evaluated which indicated that both ASB-1 and ASB-2 bind significantly and spontaneously with the DNA. However, data revealed relatively greater binding of ASB-1 with DNA. Spectral and voltammetric results were found supportive of each other. Binding site sizes and viscosity measurements verified the mixed binding mode of interactions as observed in molecular docking analysis, i.e. intercalation with groove binding. DNA binding studies were very well correlated with the in-vitro studies performed on Huh-7 cell line as well as normal HEK-293 cell lines. The compound ASB-1 not only showed greater binding affinity toward DNA but also showed greater anticancer potency with least IC50 value as compared to ASB-2.
Collapse
Affiliation(s)
| | - Nasima Arshad
- Department of Chemistry, Allama Iqbal Open University, Islamabad, Pakistan
| | | | - Fouzia Perveen
- Research Center for Modeling and Simulations, National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Aamer Saeed
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Fayaz Ali Larik
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Aneela Javed
- Healthcare Biotechnology Atta-ur-Rehman School of Applied Biosciences, National University of Science and Technology (NUST), Islamabad, Pakistan
| | - Maham Yamin
- Healthcare Biotechnology Atta-ur-Rehman School of Applied Biosciences, National University of Science and Technology (NUST), Islamabad, Pakistan
| |
Collapse
|
24
|
Jyothi N, Ganji N, Daravath S, Shivaraj. Mononuclear cobalt(II), nickel(II) and copper(II) complexes: Synthesis, spectral characterization and interaction study with nucleotide by in vitro biochemical analysis. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127799] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
25
|
Abbas S, Rashid F, Ulker E, Zaib S, Ayub K, Ullah S, Nadeem MA, Yousuf S, Ludwig R, Ali S, Iqbal J. Anticancer evaluation of a manganese complex on HeLa and MCF-7 cancer cells: design, deterministic solvothermal synthesis approach, Hirshfeld analysis, DNA binding, intracellular reactive oxygen species production, electrochemical characterization and density functional theory. J Biomol Struct Dyn 2020; 39:1068-1081. [DOI: 10.1080/07391102.2020.1726818] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Saghir Abbas
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, Pakistan
- Department of Chemistry, Quaid-I-Azam University Islamabad, Islamabad, Pakistan
| | - Faisal Rashid
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Emine Ulker
- Department of Chemistry, Faculty of Arts & Sciences, Recep Tayyip Erdogan University, Rize, Turkey
| | - Sumera Zaib
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University, Abbottabad Campus, Abbottabad, Pakistan
| | - Sana Ullah
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | | | - Sammer Yousuf
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Ralf Ludwig
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Rostock, Germany
| | - Saqib Ali
- Department of Chemistry, Quaid-I-Azam University Islamabad, Islamabad, Pakistan
| | - Jamshed Iqbal
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad, Pakistan
| |
Collapse
|
26
|
Uddin N, Rashid F, Ali S, Tirmizi SA, Ahmad I, Zaib S, Zubair M, Diaconescu PL, Tahir MN, Iqbal J, Haider A. Synthesis, characterization, and anticancer activity of Schiff bases. J Biomol Struct Dyn 2019; 38:3246-3259. [PMID: 31411114 DOI: 10.1080/07391102.2019.1654924] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Five Schiff bases, 2-((3-chlorophenylimino)methyl)-5-(diethylamino)phenol (L1), 2-((2,4-dichlorophenylimino)methyl)-5-(diethylamino)phenol (L2), 5-(diethylamino)-2-((3,5-dimethylphenylimino)methyl)phenol (L3), 2-((2-chloro-4-methylphenylimino)methyl)-5-(diethylamino)phenol (L4), and 5-(diethylamino)-2-((2,6-diethylphenylimino)methyl)phenol (L5) were synthesized and characterized by elemental analysis, FT-IR, 1H and 13C NMR spectroscopy. Three of the compounds (L1, L2, and L4) were analyzed by single crystal X-ray diffraction: L1 and L2 crystallized in orthorhombic P212121 and Pca21 space group, respectively, while L4 crystallized in monoclinic P21/c space group. Theoretical investigations were performed for all the synthesized compounds to evaluate the structural details. Drug-DNA interaction studies results from UV-Vis spectroscopy and electrochemistry complement that the compounds bind to DNA through electrostatic interactions. The cytotoxicity of the synthesized compounds was studied against cancer cell lines (HeLa and MCF-7) and a normal cell line (BHK-21) by means of an MTT assay compared to carboplatin, featuring IC50 values in the micromolar range. The pro-apoptotic mechanism for the active compound L5 was evaluated by fluorescence microscopy, cell cycle analysis, caspase-9 and -3 activity, reactive oxygen species production, and DNA binding studies that further strengthen the results of that L5 is a potent drug against cancer.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Noor Uddin
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Faisal Rashid
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, Pakistan
| | - Saqib Ali
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | | | - Iqbal Ahmad
- Department of Chemistry, Allama Iqbal Open University, Islamabad, Pakistan
| | - Sumera Zaib
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, Pakistan
| | - Muhammad Zubair
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Paula L Diaconescu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, USA
| | | | - Jamshed Iqbal
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, Pakistan
| | - Ali Haider
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| |
Collapse
|
27
|
Mudavath R, Ushaiah B, Kishan Prasad C, Sudeepa K, Ravindar P, Sunitha SNT, Sarala Devi C. Molecular docking, QSAR properties and DNA/BSA binding, anti-proliferative studies of 6-methoxy benzothiozole imine base and its metal complexes. J Biomol Struct Dyn 2019; 38:2849-2864. [PMID: 31340723 DOI: 10.1080/07391102.2019.1647878] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The molecular and QSAR (Quantitative Structure-Activity Relationship) properties of title compound 2-((6-Methoxybenzo[d]thiazol-2-ylimino)methyl)-6-ethoxyphenol (HL) were evaluated employing HyperChem 7.5 tools. The interaction of the 1a-1e complexes of HL with calf thymus DNA (CT-DNA) was investigated by absorption titrations, Fluorescence quenching and viscosity measurements. The experimental data suggest that these complexes bind to CT-DNA through an intercalative mode, wherein DNA-binding affinity of 1e is found to be greater compared to other complexes. The tryptophan emission-quenching with bovine serum albumin (BSA) experiment revealed stronger binding of 1e than other complexes in the hydrophobic region of protein. The photocleavage of plasmid pBR322 DNA investigated in the presence of the title complexes inferred conversion of supercoiled form of DNA plasmid to circular nicked form. Free-radical scavenging activity studies of HL and its metal complexes determined by their interaction with the stable free-radical DPPH have shown promising antioxidant property. Further cytotoxicity studies with HeLa and MCF-7 cell lines indicated that the compounds can efficiently inhibit the cell proliferation in a dose dependent manner. The DAPI staining assay studies revealed the higher potency of 1e to induce apoptosis. AbbreviationsBSABovine serum albumin proteinCT-DNACalf thymus DNADMSODimethyl sulfoxideDAPI4',-6-Diamidino-2-phenylindole dihydrochlorideESI-MSElectrospray ionization mass spectrometryIC50Half-maximal inhibitory concentrationMBTYE2-((6-methoxybenzo[d]thiazol-2-ylimino) methyl)-6-ethoxyphenolMTT3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromidePBSPhosphate-buffered salineTrisTris(hydroxymethyl)aminomethaneCommunicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Ravi Mudavath
- Department of Chemistry, Osmania University, Hyderabad, India
| | - B Ushaiah
- Department of Chemistry, Osmania University, Hyderabad, India
| | | | - K Sudeepa
- Department of Chemistry, Osmania University, Hyderabad, India
| | - P Ravindar
- Department of Chemistry, Osmania University, Hyderabad, India
| | - S N T Sunitha
- Department of Chemistry, Osmania University, Hyderabad, India
| | - Ch Sarala Devi
- Department of Chemistry, Osmania University, Hyderabad, India
| |
Collapse
|
28
|
Arunadevi A, Raman N. Indole-derived water-soluble N, O bi-dentate ligand-based mononuclear transition metal complexes: in silico and in vitro biological screening, molecular docking and macromolecule interaction studies. J Biomol Struct Dyn 2019; 38:1499-1513. [PMID: 31035905 DOI: 10.1080/07391102.2019.1611475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A novel tryptophan-derived Schiff base ligand (potassium (E)-2-((4-chloro-3-nitrobenzylidene)amino)-3-(1H-indol-3-yl)propanoate) and a series of its transition metal complexes of the types [ML2] and [ML(1,10-phen)2]Cl where M = Cu(II), Co(II), Ni(II) and Zn(II) were prepared. They were analyzed by various spectral and physicochemical studies. The XRD data were also used to determine the average lattice parameters and crystalline size of the compounds. All the synthesized compounds were tested against a series of five bacterial and fungal strains. The obtained results showed that the biological activity of free ligand was increased on complexation. PASS online software predicts the various biological activities of ligand such as enzyme inhibitor, antiviral, analgesic and antituberculosis. The in silico theoretical prediction of synthesized compounds is also deliberated by Swiss ADME predictor which gives the properties of molecular hydrophobicity (log P), topological polar surface area (TPSA) and oral bioavailability score. The binding energy of the docked molecule with macromolecules 1BNA and 3EQM is also determined by using Hex 8.0 software. The ligand has the least binding energy score which signifies that the potential of binding is greater in the receptor. Moreover, the interactions of complexes with DNA have been explored by electronic absorption titration, fluorescence emission titration, viscosity measurements and gel electrophoresis. HighlightsSynthesis and characterization of novel indole-derived compounds.X-ray diffraction studies demonstrate average crystalline size of the compounds.Metal complexes act as good metallointercalators.Metal complexes show higher antimicrobial activity compared to ligand.Prediction of biological activities of the ligand by PASS online software.Drug-like nature and bioavailability of synthesized compounds predicted by Swiss ADME predictorDocking of the synthesized compounds with 1BNA and 3EQM using HEX 8.0 software.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
| | - Natarajan Raman
- Research Department of Chemistry, VHNSN College, Virudhunagar, India
| |
Collapse
|
29
|
Shahraki S, Heydari A, Delarami HS, Oveisi Keikha A, Azizi Z, Fathollahi Zonouz A. Preparation, characterization and comparison of biological potency in two new Zn(II) and Pd(II) complexes of butanedione monoxime derivatives. J Biomol Struct Dyn 2019; 38:997-1011. [PMID: 30938659 DOI: 10.1080/07391102.2019.1591305] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A novel Schiff base ligand (2-iminothiophenol-2,3-butanedione monoxime, ITBM) and its complexes with Pd(II) and Zn(II) metal ions ([M(ITBM)2]Cl2) were synthesized and characterized in the present study. The formulated complexes were evaluated for in vitro antioxidant activity as radical scavengers against 1,1-diphenyl-2-picrylhydrazyl radicals (DPPH•). According to the results, antioxidant activity of Pd complex (IC50=36 mg L-1) was more effective than that of Zn(II) complex (IC50=72 mg L-1). Biophysical techniques along with computational modeling were employed to examine the binding of these complexes with human serum albumin (HSA) as the model protein. The trial findings revealed an interaction between Schiff base complexes and HSA with a modest binding affinity [Kb=6.31(±0.11)×104 M-1 for Zn(II) complex and 0.71(±0.05)×104 M-1 for Pd(II) complex at 310 K]. An intense fluorescence quenching of protein through a static quenching mechanism was occurred due to the binding of both complexes to HSA. Hydrogen bonds and van der Waals forces in both examined systems were the main stabilizing forces in the development of drug-protein complex. Based on far-UV-CD observations, the content of α-helical structure in the protein was reduced through induction by both complexes. Analysis of protein-ligand docking demonstrated binding of the two Schiff base complexes to residues placed in the IIA subdomain of HSA. In addition, Zn complex with HSA showed a stronger binding ability than that of Pd complex.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
| | - Ali Heydari
- Department of Chemistry, University of Sistan and Baluchestan, Zahedan, Iran
| | | | | | - Zahra Azizi
- Faculty of Pharmacy, Zabol University of Medical Sciences, Zabol, Iran
| | | |
Collapse
|