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Tabassum S, Pettinari C. Chemical and biotechnological developments in organotin cancer chemotherapy. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2005.12.033] [Citation(s) in RCA: 162] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] [Imported: 09/12/2023]
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Tabassum S, Al-Asbahy WM, Afzal M, Arjmand F. Synthesis, characterization and interaction studies of copper based drug with Human Serum Albumin (HSA): Spectroscopic and molecular docking investigations. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2012; 114:132-9. [PMID: 22750083 DOI: 10.1016/j.jphotobiol.2012.05.021] [Citation(s) in RCA: 158] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 05/26/2012] [Accepted: 05/28/2012] [Indexed: 11/30/2022] [Imported: 09/12/2023]
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Tabassum S, Al-Asbahy WM, Afzal M, Arjmand F, Khan RH. Interaction and photo-induced cleavage studies of a copper based chemotherapeutic drug with human serum albumin: spectroscopic and molecular docking study. MOLECULAR BIOSYSTEMS 2012; 8:2424-2433. [PMID: 22790833 DOI: 10.1039/c2mb25119a] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023] [Imported: 09/12/2023]
Abstract
The interaction of new dinuclear copper(ii) complex 1; [Cu(2)(glygly)(2)(ppz)(H(2)O)(4)]·2H(2)O, derived from dipeptide (glycyl glycine) and piperazine as a metallopeptide drug with human serum albumin (HSA) was examined by means of fluorescence spectroscopy which revealed that complex 1 has a strong ability to quench the intrinsic fluorescence of HSA through a static quenching procedure. The alterations of HSA secondary structure in the presence of complex 1 were confirmed by UV-visible, FT-IR, CD and 3D fluorescence spectroscopy. The binding constants (K), and binding site number (n), corresponding thermodynamic parameters ΔG, ΔH and ΔS at different temperatures were calculated. The molecular docking technique was utilized to ascertain the mechanism and mode of action towards the molecular target HSA indicating that complex 1 was located at the entrance of site I by electrostatic and hydrophobic forces, consistent with the corresponding experimental results. Complex 1 shows efficient photo-induced HSA cleavage activity, indicating the involvement of hydroxyl radicals as the reactive species. Furthermore, the cytotoxicity of 1 was examined on a panel of human tumor cell lines of different histological origins showing significant GI(50) values specifically towards MIAPACA2, A498 and A549 tumor cell lines. These results complement previous biological studies of new specific target metallopeptides, providing additional information about possibilities of their transport and disposition in blood plasma.
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Tabassum S, Amir S, Arjmand F, Pettinari C, Marchetti F, Masciocchi N, Lupidi G, Pettinari R. Mixed-ligand Cu(II)–vanillin Schiff base complexes; effect of coligands on their DNA binding, DNA cleavage, SOD mimetic and anticancer activity. Eur J Med Chem 2013; 60:216-32. [PMID: 23291123 DOI: 10.1016/j.ejmech.2012.08.019] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2011] [Revised: 07/26/2012] [Accepted: 08/13/2012] [Indexed: 10/28/2022] [Imported: 09/12/2023]
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Synthesis and characterization of copper(II) and zinc(II)-based potential chemotherapeutic compounds: Their biological evaluation viz. DNA binding profile, cleavage and antimicrobial activity. Eur J Med Chem 2012; 58:308-16. [PMID: 23137447 DOI: 10.1016/j.ejmech.2012.09.051] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Revised: 09/29/2012] [Accepted: 09/29/2012] [Indexed: 11/20/2022] [Imported: 09/12/2023]
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Arjmand F, Parveen S, Tabassum S, Pettinari C. Organo-tin antitumor compounds: Their present status in drug development and future perspectives. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.07.066] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] [Imported: 09/12/2023]
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Yousuf I, Arjmand F, Tabassum S, Toupet L, Khan RA, Siddiqui MA. Mechanistic insights into a novel chromone-appended Cu(II) anticancer drug entity: in vitro binding profile with DNA/RNA substrates and cytotoxic activity against MCF-7 and HepG2 cancer cells. Dalton Trans 2016; 44:10330-42. [PMID: 25970097 DOI: 10.1039/c5dt00770d] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] [Imported: 09/12/2023]
Abstract
A new chromone-appended Cu(ii) drug entity () was designed and synthesized as a potential anticancer chemotherapeutic agent. The structural elucidation was carried out thoroughly by elemental analysis, FT-IR, EPR, ESI-MS and single crystal X-ray crystallography. Complex resulted from the in situ methoxylation reaction of the 3-formylchromone ligand and its subsequent complexation with the copper nitrate salt in a 2 : 1 ratio, respectively. crystallized in the monoclinic P21/c space group possessing the lattice parameters, a = 8.75 Å, b = 5.07 Å, c = 26.22 Å, α = γ = 90°, β = 96.3° per unit cell. Furthermore, in vitro interaction studies of with ct-DNA and tRNA were carried out which suggested more avid binding propensity towards the RNA target via intercalative mode, which was reflected from its Kb, K and Ksv values. The gel electrophoretic mobility assay was carried out on the pBR322 plasmid DNA substrate, to ascertain the cleaving ability and the mechanistic pathway in the presence of additives, and the results revealed the efficient cleaving ability of via the oxidative pathway. In vitro cell growth inhibition via the MTT assay was carried out to evaluate the cytotoxicity of complex and IC50 values were found to be in the range of 5-10 μg mL(-1) in HepG2 and MCF-7 cancer cell lines, which were found to be much lower than the IC50 values of previously reported similar Cu(ii) complexes. Additionally, in the presence of , reactive oxygen species (ROS) and thiobarbituric acid reactive substance (TBARS) levels in the tested cancer cell lines increased significantly, coupled with reduced glutathione (GSH) levels. Thus, our results suggested that ROS plays an important role in cell apoptosis induced by the Cu(ii) complex and validates its potential to act as a robust anticancer drug entity.
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Tabassum S, Zaki M, Afzal M, Arjmand F. New modulated design and synthesis of quercetin–CuII/ZnII–Sn2IV scaffold as anticancer agents: in vitro DNA binding profile, DNA cleavage pathway and Topo-I activity. Dalton Trans 2013; 42:10029. [DOI: 10.1039/c3dt50646k] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023] [Imported: 09/12/2023]
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Current and future potential of metallo drugs: Revisiting DNA-binding of metal containing molecules and their diverse mechanism of action. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.01.006] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] [Imported: 09/12/2023]
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Tabassum S, Al-Asbahy WM, Afzal M, Arjmand F, Bagchi V. Molecular drug design, synthesis and structure elucidation of a new specific target peptide based metallo drug for cancer chemotherapy as topoisomerase I inhibitor. Dalton Trans 2012; 41:4955-4964. [PMID: 22407358 DOI: 10.1039/c2dt12044e] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023] [Imported: 09/12/2023]
Abstract
To evaluate the biological preference of metallopeptide drugs in cancer cells, a new dinuclear copper(II) complex [Cu(2)(glygly)(2)(ppz)(H(2)O)(4)]·2H(2)O (1) (glygly = glycyl glycine anion and ppz = piperazine), was designed and synthesized as topoisomerase I inhibitor. The structural elucidation of the complex was done by elemental analysis, spectroscopic methods and single crystal X-ray diffraction. The in vitro DNA binding studies of complex 1 with CT DNA were carried out by employing different optical methods viz. UV-vis, fluorescence and circular dichroism. The molecular docking technique was also utilized to ascertain the mechanism and mode of action towards the molecular target DNA and enzymes. Complex 1 cleaves pBR322 DNA via an oxidative mechanism and strongly binds to the DNA minor groove. Furthermore, complex 1 exhibits significant inhibitory effects on the catalytic activity of topoisomerase I at a very low concentration, ~12.5 μM, in addition to its excellent SOD mimics (IC(50)~0.086 μM).
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Ahmed AS, Shafeeq M. M, Singla M, Tabassum S, Naqvi AH, Azam A. Band gap narrowing and fluorescence properties of nickel doped SnO2 nanoparticles. JOURNAL OF LUMINESCENCE 2011; 131:1-6. [DOI: 10.1016/j.jlumin.2010.07.017] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023] [Imported: 09/12/2023]
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Synthesis and structure elucidation of a copper(II) Schiff-base complex: In vitro DNA binding, pBR322 plasmid cleavage and HSA binding studies. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 140:321-31. [PMID: 25222146 DOI: 10.1016/j.jphotobiol.2014.08.015] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 07/31/2014] [Accepted: 08/24/2014] [Indexed: 11/18/2022] [Imported: 09/12/2023]
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Yadav S, Yousuf I, Usman M, Ahmad M, Arjmand F, Tabassum S. Synthesis and spectroscopic characterization of diorganotin( iv) complexes of N′-(4-hydroxypent-3-en-2-ylidene)isonicotinohydrazide: chemotherapeutic potential validation by in vitro interaction studies with DNA/HSA, DFT, molecular docking and cytotoxic activity. RSC Adv 2015; 5:50673-50690. [DOI: 10.1039/c5ra06953j] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023] [Imported: 09/12/2023] Open
Abstract
A diorganotin(iv) hydrazide complex as a potential cancer chemotherapeutic agent targeting DNA using the carrier protein HSA.
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Gaur R, Khan RA, Tabassum S, Shah P, Siddiqi MI, Mishra L. Interaction of a ruthenium(II)–chalcone complex with double stranded DNA: Spectroscopic, molecular docking and nuclease properties. J Photochem Photobiol A Chem 2011. [DOI: 10.1016/j.jphotochem.2011.04.005] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] [Imported: 09/12/2023]
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Rizvi MA, Zaki M, Afzal M, Mane M, Kumar M, Shah BA, Srivastav S, Srikrishna S, Peerzada GM, Tabassum S. Nuclear blebbing of biologically active organoselenium compound towards human cervical cancer cell (HeLa): In vitro DNA/HSA binding, cleavage and cell imaging studies. Eur J Med Chem 2015; 90:876-88. [PMID: 25535953 DOI: 10.1016/j.ejmech.2014.12.014] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 12/06/2014] [Accepted: 12/09/2014] [Indexed: 11/26/2022] [Imported: 09/12/2023]
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Tabassum S, Zaki M, Ahmad M, Afzal M, Srivastav S, Srikrishna S, Arjmand F. Synthesis and crystal structure determination of copper(II)-complex: In vitro DNA and HSA binding, pBR322 plasmid cleavage, cell imaging and cytotoxic studies. Eur J Med Chem 2014; 83:141-54. [PMID: 24953031 DOI: 10.1016/j.ejmech.2014.06.018] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 06/05/2014] [Accepted: 06/09/2014] [Indexed: 11/28/2022] [Imported: 09/12/2023]
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Tabassum S, Parveen S, Arjmand F. New modulated metallic macrocycles: Electrochemistry and their interaction with calf thymus DNA. Acta Biomater 2005; 1:677-89. [PMID: 16701849 DOI: 10.1016/j.actbio.2005.07.002] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2005] [Revised: 05/29/2005] [Accepted: 07/02/2005] [Indexed: 11/25/2022] [Imported: 09/12/2023]
Abstract
New modulated pentacoordinate complexes [C17H34N7O2Cu]ClO4 (5), [C17H34N7O2Co]ClO4 (6), [C17H34N7O2Ni] ClO4 (7) have been synthesized by the interaction of 1,8-dihydro-1,3,6,8,10,13 Cu(II) (2), Co(II) (3), Ni(II) (4) hexaazacyclotetradecane complexes and Hsalea N-(2-hydroxy benzyl)-2-amino-1-ethanol ligand (1). All the complexes have been characterized by infrared, electron paramagnetic resonance, 1H and 13C nuclear magnetic resonance (NMR), 2D correlation spectroscopy NMR and ultraviolet-visible (UV-vis) spectroscopy. In all the complexes, the metal center is encapsulated by the Hsalea ligand in a pentacoordinate environment-vis absorption titration and viscometric studies have been carried out to ascertain the interaction of complexes 5 and 6 with calf thymus DNA (CT DNA). The experimental results suggest that complex 5 binds to CT DNA through partial intercalation of the aromatic ring into the base pair of DNA while complex 6 binds binds to CT DNA by electrostatic mode. The intrinsic binding constants K(b) of complex 5 and 6 were found to be 6.8 x 10(-5) M(-1) and 1.8 x 10(-4) M(-1), respectively. The binding of complexes 5 and 6 with CT DNA has also been investigated by cyclic voltammetry.
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Evaluation Study |
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Tabassum S, Asim A, Khan RA, Hussain Z, Srivastav S, Srikrishna S, Arjmand F. Chiral heterobimetallic complexes targeting human DNA-topoisomerase Iα. Dalton Trans 2013; 42:16749-16761. [PMID: 24077532 DOI: 10.1039/c3dt51209f] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023] [Imported: 09/12/2023]
Abstract
The chiral monometallic Cu(II) (1) and Zn(II) (2) and heterobimetallic Cu(II)-Sn(IV) and Zn(II)-Sn(IV) complexes with tridentate chiral Schiff base -ONO-ligand in the presence of nitrogen donor heterocyclic ligand imidazole; were prepared and characterized by various physico-chemical and spectroscopic methods. Preliminary complex-DNA interaction studies employing optical methods revealed that 3 displayed a higher propensity towards the drug target DNA double helix and recommended predominantly an electrostatic mode of interaction as well as a groove binding affinity of the complex with CT-DNA. This was quantified by Kb and KSV values of complexes 1-4, which demonstrated a multifold increase in complex 3 binding to CT DNA and clearly demonstrates its potency to act as a chemotherapeutic agent. Furthermore, the gel electrophoretic patterns of supercoiled pBR322 DNA with varying concentrations of complex 3 exhibits the ability to cleave DNA and follow a freely diffusible radical mechanism. The antiproliferative effects of complex 3 on human hepatoma cancer cells (Huh7) was investigated. Human Topo I inhibition assay by complex 3 was performed and results confirmed significantly good activity at lower concentrations than some of the classical Topo I inhibitors. Additionally, complex 3 was investigated for the expression of MMP-2 and TGF-β by real time PCR. The cellular uptake of complex 3 by HeLa cells was studied by confocal microscopy.
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Development and future prospects of selective organometallic compounds as anticancer drug candidates exhibiting novel modes of action. Eur J Med Chem 2019; 175:269-286. [PMID: 31096151 DOI: 10.1016/j.ejmech.2019.04.062] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 03/30/2019] [Accepted: 04/23/2019] [Indexed: 01/01/2023] [Imported: 09/12/2023]
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Bhat IUH, Tabassum S. Synthesis of new piperazine derived Cu(II)/Zn(II) metal complexes, their DNA binding studies, electrochemistry and anti-microbial activity: validation for specific recognition of Zn(II) complex to DNA helix by interaction with thymine base. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 72:1026-1033. [PMID: 19200776 DOI: 10.1016/j.saa.2008.12.037] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2008] [Accepted: 12/25/2008] [Indexed: 05/27/2023] [Imported: 09/12/2023]
Abstract
New 3,4:9,10-dibenzo-2,11-dihydroxy-1,12-bispiperazine-5,8-dioxododecane complexes [C(24)H(36)N(4)O(6)Cu] (1), [C(24)H(32)N(4)O(4)Zn] (2) have been synthesized and characterized by elemental analysis, IR, NMR, Mass, EPR, UV-vis spectroscopy and molar conductance measurements. The complexes are non-ionic in nature and possess octahedral geometry around Cu(2+), Zn(2+) central metal ions. The binding studies of 1 and 2 with calf thymus DNA (CT-DNA) were investigated by UV-vis, fluorescence, cyclic voltammetery and viscosity measurements. The calculated binding constant K(b) for 1 and 2 obtained from UV-vis absorption studies was 7.6x10(3)M(-1), 80.8x10(4)M(-1), respectively. The intrinsic binding constants were also estimated to be 7.0x10(4)M(-1) and 7.53x10(5)M(-1) for 1 and 2, respectively by using emission titrations. These experimental results suggest that complexes are groove binders and interact to CT-DNA with different affinities. Both the complexes in presence and absence of CT-DNA show quasireversible wave corresponding to Cu(II)/Cu(I) and Zn(II)/Zn(I) redox couple. The changes in E(1/2), DeltaE, I(pa)/I(pc) ascertain the interaction of 1 and 2 with CT-DNA. Further, decrease in viscosity of CT-DNA with increasing concentration of complexes was observed. In vitro, antimicrobial activity against fungi A. brassicicola, A. niger and bacteria E. coli, P. aeruginosa of complexes were carried out, which indicate that complex 2 is more active against both fungal and bacterial strains as shown by % inhibition data.
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Tabassum S, Zaki M, Arjmand F, Ahmad I. Synthesis of heterobimetallic complexes: In vitro DNA binding, cleavage and antimicrobial studies. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2012; 114:108-18. [PMID: 22762922 DOI: 10.1016/j.jphotobiol.2012.05.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 05/15/2012] [Accepted: 05/22/2012] [Indexed: 11/17/2022] [Imported: 09/12/2023]
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Höti N, Ma J, Tabassum S, Wang Y, Wu M. Triphenyl tin benzimidazolethiol, a novel antitumor agent, induces mitochondrial-mediated apoptosis in human cervical cancer cells via suppression of HPV-18 encoded E6. J Biochem 2004; 134:521-8. [PMID: 14607978 DOI: 10.1093/jb/mvg169] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] [Imported: 09/12/2023] Open
Abstract
Here we report the effect of TPT-benzimidazolethiol, a novel anti-tumor agent developed by our group, on the apoptotic pathway of human cervical carcinoma cells. Treatment of HeLa cells with TPT-benzimidazolethiol arrests the cell cycle at G0/G1 phase and transcriptionally downregulates HPV-encoded E6, restoring p53 expression from E6 suppression. Increased p53 accumulation up-regulates p21/waf and ultimately induces apoptosis. The effect of TPT-benzimidazolethiol is far more potent in inducing apoptosis than cisplatin. Treatment with TPT-benzimidazolethiol in HeLa cells is accompanied by the up-regulation of Bak at the transcriptional level, resulting in the release of cytochrome c and Smac/DIABLO from mitochondria to cytosol and, subsequently, the activation of procaspase-9, -3 and PARP, suggesting that TPT-benzimidazolethiol induced-apoptosis signaling is by an intrinsic mitochondrial pathway. Taken together, we propose that TPT-benzimidazolethiol could has the potential to be developed into a new therapeutic agent for treating HPV-associated cervical neoplasia.
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Research Support, Non-U.S. Gov't |
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Yousuf I, Bashir M, Arjmand F, Tabassum S. Advancement of metal compounds as therapeutic and diagnostic metallodrugs: Current frontiers and future perspectives. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214104] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] [Imported: 09/12/2023]
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Khan RA, Yadav S, Hussain Z, Arjmand F, Tabassum S. Carbohydrate linked organotin(IV) complexes as human topoisomerase Iα inhibitor and their antiproliferative effects against the human carcinoma cell line. Dalton Trans 2013; 43:2534-48. [PMID: 24310209 DOI: 10.1039/c3dt51973b] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] [Imported: 09/12/2023]
Abstract
Dimethyltin(IV) complexes with ethanolamine (1) and biologically significant N-glycosides (2 and 3) were designed and synthesized. The structural elucidation of complexes 1-3 was done using elemental and spectroscopic methods; in addition, complex 1 was studied by single crystal X-ray diffraction studies. The in vitro DNA binding profile of complexes 2 and 3 was carried out by employing different biophysical methods to ascertain the feasibility of glycosylated complexes. Further, the cleaving ability of 2 and 3 was investigated by the agarose gel electrophoretic mobility assay with supercoiled pBR322 DNA, and demonstrated significantly good nuclease activity. Furthermore, both the complexes exhibited significant inhibitory effects on the catalytic activity of human Topo I at lower concentration than standard drugs. Computer-aided molecular docking techniques were used to ascertain the mode and mechanism of action towards the molecular target DNA and Topo I. The cytotoxicity of 2 and 3 against human hepatoma cancer cells (Huh7) was evaluated, which revealed significant regression in cancerous cells as compared with the standard drug. The antiproliferative activities of 2 and 3 were tested against human hepatoma cancer cells (Huh7), and results showed significantly good activity. Additionally, to validate the remarkable antiproliferative activity of complexes 2 and 3, specific regulatory gene expression (MMP-2 and TGF-β) was obtained by real time PCR.
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Usman M, Zaki M, Khan RA, Alsalme A, Ahmad M, Tabassum S. Coumarin centered copper( ii) complex with appended-imidazole as cancer chemotherapeutic agents against lung cancer: molecular insight via DFT-based vibrational analysis. RSC Adv 2017; 7:36056-36071. [DOI: 10.1039/c7ra05874h] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023] [Imported: 09/12/2023] Open
Abstract
Synthesis and structural characterization of the novel copper complex, DFT based vibrational analysis, DNA binding studies. In vitro cytotoxicity against A549 cancer cell lines and estimation of GSH, ROS, LPO levels, have been reported.
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