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Comprehensive Assessment of Biomolecular Interactions of Morpholine-Based Mixed Ligand Cu(II) and Zn(II) Complexes of 2,2'-Bipyridine as Potential Anticancer and SARS-CoV-2 Agents: A Synergistic Experimental and Structure-Based Virtual Screening. Bioinorg Chem Appl 2022; 2022:6987806. [PMID: 36545430 PMCID: PMC9763021 DOI: 10.1155/2022/6987806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/06/2022] [Accepted: 11/10/2022] [Indexed: 12/14/2022] Open
Abstract
A new class of pharmacologically active mixed-ligand complexes (1a-2a) [MII(L)2 (bpy)], where L = 2-(4-morpholinobenzylideneamino)phenol), bpy = 2,2'-bipyridine, MII = Cu (1a), and Zn (2a), were assigned an octahedral geometry by analytical and spectral measurements. Gel electrophoresis showed that complex (1a) demonstrated the complete DNA cleavage mediated by H2O2. The overall DNA-binding constants observed from UV-vis, fluorometric, hydrodynamic, and electrochemical titrations were in the following sequence: (1a) > (2a) > (HL), which suggests that the complexes might intercalate DNA, a possibility that is further supported by the biothermodynamic characteristics. The binding constant results of BSA by electronic absorption and fluorometric titration demonstrate that complex (1a) exhibits the highest binding effectiveness among others, which means that all compounds could interact with BSA through a static approach, additionally supported by FRET measurements. Density FunctionalTheory (DFT) and molecular docking calculations were relied on to unveil the electronic structure, reactivity, and interacting capability of all substances with DNA, BSA, and SARS-CoV-2 main protease (Mpro). These observed binding energies fell within the following ranges: -7.7 to -8.6, -7.2 to -10.2, and -6.7 to -8.2 kcal/mol, respectively. The higher reactivity of the complexes compared to free ligand is supported by the Frontier MolecularOrbital (FMO) theory. The in vitro antibacterial, cytotoxic, and radical scavenging characteristics revealed that complex (1a) has the best biological efficacy compared to others. This is encouraged because all experimental findings are closely correlated with the theoretical measurements.
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Jain A, De S, Barman P. Microwave-assisted synthesis and notable applications of Schiff-base and metal complexes: a comparative study. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04708-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Alkhatib FM, Farghaly TA, Harras MF, El-Ghamry HA. Copper(II) complexes based on 1,3,4-thiadiazolethiosemicarbazone NNS donor ligands: synthesis, molecular structure, DNA binding and in silico molecular docking approach. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.2011319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Fatmah M. Alkhatib
- Chemistry Department Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | | | - Marwa F. Harras
- Department of Pharmaceutical Medicinal Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Hoda A. El-Ghamry
- Chemistry Department Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
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Sumrra SH, Zafar W, Javed H, Zafar M, Hussain MZ, Imran M, Nadeem MA. Facile synthesis, spectroscopic evaluation and antimicrobial screening of metal endowed triazole compounds. Biometals 2021; 34:1329-1351. [PMID: 34564801 DOI: 10.1007/s10534-021-00345-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 09/15/2021] [Indexed: 11/29/2022]
Abstract
The scientific interest in developing new complexes as inhibitors of bacterial biofilm related infections is constantly rising. The present work describes the chemical synthesis, structural and biological scrutiny of a triazole Schiff base ligand and its corresponding complexes. Triazole Schiff base, (2-methoxy-4-[(1H-1,2,4-triazol-3-ylimino)methyl]phenol) was synthesized from the condensation reaction of 3-amino-1,2,4-triazole and 4-hydroxy-3-methoxybenzaldehyde in an equimolar ratio. The triazole ligand (H2L) was characterized by physical (solubility, color, melting point), spectroscopic [UV-visible (UV-Vis), Fourier transform infrared spectroscopy (FT-IR), proton nuclear magnetic resonance (1H-NMR) and mass spectra (MS)] and micro analysis to evaluate their elemental composition. The bidentate ligand was complexed with transition metal [VO(IV), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II)] in 1:2 molar ratio. The complexes were characterized by physical (color, solubility, decomposition temperature, conductance and magnetic moment), FT-IR, UV-Vis and elemental analysis. Thermal stability and fluorescence properties of the compounds were also determined. Density functional theory based theoretical calculations were accomplished to gain more insight into spectroscopic properties. The frontier molecular orbital analysis revealed that the ligand was less reactive with reduced electron donating capability and more kinetic stability than complexes. The as-synthesized compounds were scrutinized for anti-bacterial and anti-fungal activity against selected strains. Cobalt complex exhibited highest antibacterial activity against Escherichia coli and nickel complex has shown highest antifungal activity against Aspergillus niger. All the compounds also showed good antioxidant activity. The theoretical results reflect consistency with the experimental findings signifying that such compounds could be the promising chemical scaffolds in the near future against microbial infectious.
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Affiliation(s)
- Sajjad H Sumrra
- Department of Chemistry, University of Gujrat, Gujrat, 50700, Pakistan.
| | - Wardha Zafar
- Department of Chemistry, University of Gujrat, Gujrat, 50700, Pakistan
| | - Hassan Javed
- Department of Chemistry, University of Gujrat, Gujrat, 50700, Pakistan
| | - Muddassar Zafar
- Department of Biochemistry and Biotechnology, University of Gujrat, Gujrat, 50700, Pakistan
| | | | - Muhammad Imran
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Muhammad A Nadeem
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
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Computational investigation of molecular structures, spectroscopic properties, cholinesterase inhibition and antibacterial activities of triazole Schiff bases endowed metal chelates. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130382] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Zafar W, Sumrra SH, Chohan ZH. A review: Pharmacological aspects of metal based 1,2,4-triazole derived Schiff bases. Eur J Med Chem 2021; 222:113602. [PMID: 34139626 DOI: 10.1016/j.ejmech.2021.113602] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 05/06/2021] [Accepted: 06/01/2021] [Indexed: 12/19/2022]
Abstract
Clinical reports have highlighted the radical increase of antibiotic resistance. As a result, multidrug resistance has emerged as a serious threat to human health. Many organic compounds commonly used as drugs in the past, no longer have pure organic mode of action rather need bio-transformation or more activation. Bulk of research has shown that they need trace amount of metal ions incorporated within the chemistry of bioactive molecules for enhancement of their potentiality to fight aggressively against resistance. The deficiency of some metal ions can also be responsible for many diseases like growth retardation, pernicious anemia and heart diseases in infants. To overcome these problems, there is a need to introduce novel strategies which have new mechanism of action along with significant spectrum of biological activity, enhanced safety and efficacy. Bioinorganic compounds have played imperative role in developing the new strategy in the form of "Metal Based Drugs". In current years there have been momentous rise of interest in the application of metal based Schiff base compounds to treat various diseases which are difficult to be treated with conventional methodologies. The unique properties of metal chelates acting as an intermediate between conventional organic and inorganic compounds provided innovative opportunities in the field of pharmaceutical chemistry. In this review, we have exclusively focused on the search of metal based 1,2,4-triazole derived Schiff base compounds (synthesized, reported and reviewed in the past ten years) that possess various biological activities such as antifungal, antibacterial, antioxidant, antidiabetic, anthelmintic, anticancer, antiproliferative, cytotoxic and DNA-intercalation activity.
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Affiliation(s)
- Wardha Zafar
- Department of Chemistry, University of Gujrat, Gujrat, 50700, Pakistan
| | - Sajjad H Sumrra
- Department of Chemistry, University of Gujrat, Gujrat, 50700, Pakistan.
| | - Zahid H Chohan
- Department of Chemistry, Institute of Southern Punjab, Multan, Pakistan
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Sumrra SH, Habiba U, Zafar W, Imran M, Chohan ZH. A review on the efficacy and medicinal applications of metal-based triazole derivatives. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1839751] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | - Umme Habiba
- Department of Chemistry, University of Gujrat, Gujrat, Pakistan
| | - Wardha Zafar
- Department of Chemistry, University of Gujrat, Gujrat, Pakistan
| | - Muhammad Imran
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Zahid Hussain Chohan
- Department of Chemistry, University College of Management and Sciences, Khanewal, Pakistan
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Wen X, Zhou Y, Zeng J, Liu X. Recent Development of 1,2,4-triazole-containing Compounds as Anticancer Agents. Curr Top Med Chem 2020; 20:1441-1460. [DOI: 10.2174/1568026620666200128143230] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 12/15/2019] [Accepted: 12/25/2019] [Indexed: 12/16/2022]
Abstract
1,2,4-Triazole derivatives possess promising in vitro and in vivo anticancer activity, and many
anticancer agents such as fluconazole, tebuconazole, triadimefon, and ribavirin bear a 1,2,4-triazole
moiety, revealing their potential in the development of novel anticancer agents. This review emphasizes
the recent advances in 1,2,4-triazole-containing compounds with anticancer potential, and the structureactivity
relationships as well as mechanisms of action are also discussed.
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Affiliation(s)
- Xiaoyue Wen
- The Institute of Infection and Inflammation, China Three Gorges University, Yichang, Hubei 443000, China
| | - Yongqin Zhou
- The Institute of Infection and Inflammation, China Three Gorges University, Yichang, Hubei 443000, China
| | - Junhao Zeng
- The Institute of Infection and Inflammation, China Three Gorges University, Yichang, Hubei 443000, China
| | - Xinyue Liu
- The Institute of Infection and Inflammation, China Three Gorges University, Yichang, Hubei 443000, China
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Singh I, Luxami V, Paul K. Synthesis, cytotoxicity, pharmacokinetic profile, binding with DNA and BSA of new imidazo[1,2-a]pyrazine-benzo[d]imidazol-5-yl hybrids. Sci Rep 2020; 10:6534. [PMID: 32300169 PMCID: PMC7162861 DOI: 10.1038/s41598-020-63605-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 04/02/2020] [Indexed: 11/13/2022] Open
Abstract
Novel derivatives possessing imidazo[1,2-a]pyrazine and 1H-benzo[d]imidazole scaffolds were synthesized using Suzuki-Miyaura cross-coupling reactions. In vitro anticancer activities against NCI-60 cancer cell panels were tested at 10 µM concentration. The best results were obtained from substitution of two 1-cyclohexyl-1H-benzo[d]imidazole groups present at C-6 and C-8 positions of imidazo[1,2-a]pyrazine (31). Compound 31 was found to be cytotoxic against 51 cell lines and cytostatic against 8 cell lines with broad range of growth inhibitions (−98.48 to 98.86%). GI50 value of compound 31 was found in the range of 0.80–2.87 µM for 59 human cancer cell lines at five-dose concentration levels. DNA binding study of potent compound 31 was suggested that this compound was intercalated into DNA base pairs with binding constant of 1.25 × 104 M−1. Compound 31 showed effective binding with bovine serum albumin (BSA) and presented binding constant value of 3.79 ×104 M-1. Pharmacokinetic studies revealed that all compounds are following Lipinski’s rule of five and expected to be orally active.
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Affiliation(s)
- Iqubal Singh
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147001, India
| | - Vijay Luxami
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147001, India
| | - Kamaldeep Paul
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147001, India.
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Silver(I) and copper(I) complexes with a Schiff base derived from 2-aminofluorene with promising antibacterial activity. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.02.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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