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Thomas OE, Oduwole RT, Akin-Taylor A. Comparison of the DNA-binding interactions of 5-hydroxymethylfurfural and its synthesized derivative, 5, 5’[oxy-bis(methylene)]bis-2-furfural: experimental, DFT and docking studies. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2023. [DOI: 10.1080/16583655.2023.2183705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Fazlollahi M, Divsalar A, Masteri-Farahani M, Sahebi U, Rasouli M. Design, characterization and green synthesis of samarium-decorated magnetic Fe 3O 4 nanoparticles: cytotoxicity and DNA binding studies. J Biomol Struct Dyn 2023:1-13. [PMID: 37937794 DOI: 10.1080/07391102.2023.2279282] [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: 08/21/2023] [Accepted: 10/30/2023] [Indexed: 11/09/2023]
Abstract
In this study, we have successfully synthesized magnetic Fe3O4 nanoparticles adorned with samarium (Sm-MNPs) utilizing ginger extract for the very first time. Furthermore, a comprehensive characterization of the nanoparticles along with an exploration of their physicochemical attributes was conducted. The biological functionalities of the synthesized nanoparticles were investigated through a thorough examination of their interaction with calf thymus DNA (ctDNA) using diverse spectroscopic techniques encompassing ultraviolet-visible (UV-Vis) and fluorescence spectroscopy at varying temperatures. Subsequently, we evaluated the cytotoxicity of the magnetic nanoparticles using a colorectal cancer cell model (HCT116 cells) and a tetrazolium colorimetric assay (MTT assay). The characterization of the ginger extract-coated magnetic nanoparticles (ginger-Sm-MNPs) revealed their superparamagnetic nature, nanocrystalline structure, spherical morphology, hydrodynamic size of 155 nm, and uniform distribution. The outcomes from UV-Vis and fluorescence spectroscopy affirmed the binding of ginger-Sm-MNPs with ctDNA. Additionally, the MTT assay demonstrated that the cytotoxicity of ginger-Sm-MNPs surpassed that of both magnetite nanoparticles and ginger extract. Notably, the inhibitory concentrations (IC50) for the green-synthesized nanoparticles after 24 and 48 h of incubation were determined as 198.1 and 135.8 μg/mL, respectively. In conclusion, our study findings suggest the potential utility of ginger-Sm-MNPs as a promising candidate for various biomedical applications.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Masoume Fazlollahi
- Department of Cell and Molecular Sciences, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Adeleh Divsalar
- Department of Cell and Molecular Sciences, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | | | - Unes Sahebi
- Department of Clinical Biochemistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Milad Rasouli
- Department of Physics, Kharazmi University, Tehran, Iran
- Endocrinology and Metabolism Research Center, Tehran University of Medical Sciences, Tehran, Iran
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3
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Samari F, Hemmateenejad B, Aparicio S, Rashidi M, Shamsipur M, Hosseini SM. Intercalative binding of two new five-coordinated anticancer Pt(II) complexes to DNA: experimental and computational approaches. J Biomol Struct Dyn 2023; 41:8751-8761. [PMID: 36318521 DOI: 10.1080/07391102.2022.2137240] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 10/11/2022] [Indexed: 11/05/2022]
Abstract
Binding interaction of two organoplatinum complexes, [Pt(C^N)Cl(dppa)], 1, and [Pt(C^N)Cl(dppm)], 2, (C^N = N(1), C(2')-chelated, deprotonated 2-phenylpyridine, dppa = bis(diphenylphosphino)amine, dppm = bis(diphenylphosphino)methane), as anti-tumor agents, with calf thymus DNA (CT-DNA) under pseudo-physiological conditions has been investigated using various biophysical techniques viz., UV-Vis and fluorescence spectroscopies, viscosity measurements, and thermal denaturation experiments. A hypochromic shift in UV-Vis absorption titration, fluorescence enhancement of Pt(II) complexes in the presence of CT-DNA, fluorescence quenching in competitive ethidium bromide displacement assay, and an uptrend in the viscosity (η) and melting temperature (Tm) indicated the existence of a tight intercalative interaction of Pt(II) complexes with CT-DNA. The fluorescence quenching of CT-DNA was a combined quenching of static and dynamic with Stern-Volmer quenching constants of 7.520 × 103 M-1 for complex 1 and 5.183 × 103 M-1 for complex 2, at low concentrations of Pt(II) complexes. Besides the experimental studies, computational studies were done. Molecular modeling studies confirmed the intercalation of the studied complexes by the phenyl groups of dppa and dppm, leading to π-π interactions but with a certain steric hindrance because of the size and shape of the considered complexes. The combination of experimental and computational data showed that reported Pt(II) complexes are promising structures and could be developed for cancer therapeutic applications.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Fayezeh Samari
- Department of Chemistry, Faculty of Sciences, University of Hormozgan, Bandar Abbas, Iran
- Nanoscience, Nanotechnology and Advanced Materials Research Center, University of Hormozgan, Bandar Abbas, Iran
| | | | | | - Mehdi Rashidi
- Department of Chemistry, Shiraz University, Shiraz, Iran
| | | | - Sayed Mostafa Hosseini
- Department of Chemistry, Faculty of Sciences, University of Hormozgan, Bandar Abbas, Iran
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4
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Fatima S, Hussain I, Ahmed S, Tabish M. In vitro and in silico binding studies of phytochemical isochroman with calf thymus DNA using multi-spectroscopic and computational modelling techniques. J Biomol Struct Dyn 2023; 41:8795-8809. [PMID: 36281697 DOI: 10.1080/07391102.2022.2137243] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 10/11/2022] [Indexed: 10/31/2022]
Abstract
A wide range of therapeutic molecules uses deoxyribonucleic acid (DNA) as an intracellular target. The interaction of small molecules to DNA is a key feature in pharmacology and plays a vital role in the development of novel and more efficient drugs with increased selective activity and enhanced therapeutic effectiveness. Isochroman (IC) is a constituent of Olea europea plant, which has been shown to exhibit several beneficial pharmacological activities. At present, its interaction studies using calf thymus DNA (ct-DNA) have not been explained. A set of multi-spectroscopic techniques has been performed to determine the interaction mechanism of isochroman with ct-DNA. Absorption spectra and quenching in fluorescence studies show that isochroman and ct-DNA form a complex. The static mode of quenching was determined by the Stern-Volmer plot. The value of binding constant, Kb = 4.0 × 103 M-1 revealed moderate type of binding. Effects of single-stranded DNA (ssDNA) and double-stranded DNA (dsDNA) and ionic strength were studied to examine the isochroman binding to ct-DNA. Potassium iodide (KI) quenching effects and competitive binding studies clearly showed that isochroman binds in the minor groove of ct-DNA. Circular dichroic and DNA melting experiments also confirmed these results. The experimental outputs were further corroborated via in silico computational modelling studies. Lipinski's rule of 5 and SwissADME showed drug-likeness and oral bioavailability scores. Protox ІІ online software predicts oral and organ toxicity.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sana Fatima
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, Uttar Pradesh, India
| | - Irfan Hussain
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, Uttar Pradesh, India
| | - Shahbaz Ahmed
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, Uttar Pradesh, India
| | - Mohammad Tabish
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, Uttar Pradesh, India
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Revathi N, Sankarganesh M, Dhaveethu Raja J, Johnson Raja S, Gurusamy S, Nandini Asha R, Jeyakumar TC. Synthesis, spectral, DFT calculation, antimicrobial, antioxidant, DNA/BSA binding and molecular docking studies of bio-pharmacologically active pyrimidine appended Cu(II) and Zn(II) complexes. J Biomol Struct Dyn 2023; 41:14914-14928. [PMID: 37021479 DOI: 10.1080/07391102.2023.2196696] [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: 11/18/2022] [Accepted: 02/18/2023] [Indexed: 04/07/2023]
Abstract
A new pyrimidine derivative Schiff base (HL) [HL = 2-((4-amino-6-chloropyrimidin-2-ylimino)methyl)-4-nitrophenol] has been synthesized using 2,6-diamino-4-chloropyrimidine and 5-nitrosalicylaldehyde. Transition metal complexes of Cu(II) and Zn(II) complexes [CuL(OAc)] (1), [ZnL(OAc)] (2) are prepared with HL/metal(II) acetate with molar ratio of 1:1. The Schiff base (HL) and the complexes 1 and 2 are evaluated by UV-Visible, 1H-NMR, FT-IR, EI-MS and ESR spectral techniques. Complexes 1 and 2 are confirmed as square planar geometry. Electrochemical studies of the complexes 1 and 2 are used to analyse the quasi reversible process. Density Functional Theory (DFT) using the B3LYP/6-31++G(d,p) level basis set was used to get the optimised geometry and non-linear optical properties. The complexes 1 and 2 are good antimicrobial agents than Schiff base (HL). The interactions of the HL and complexes 1 and 2 with Calf Thymus (CT) DNA are investigated by electronic absorption methods and viscosity measurements. Various molecular spectroscopy techniques, such as UV absorption and fluorescence, were used to explore the mechanism of interaction between the BSA and the ligand HL and complexes 1 & 2 under physiological settings. Complexes 1 and 2 are act as potential antioxidants than free Schiff base (HL) by DPPH radical scavenging assay. Furthermore, the purpose of the molecular docking studies was to better understand how metal complexes interact with biomolecules (CT-DNA and BSA). From these biological analyses, complex 1 acts as good intercalator with CT DNA & BSA and potent antioxidant with DPPH radical than complex 2.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Nagaraj Revathi
- Department of Chemistry, Ramco Institute of Technology, Virudhunagar, Tamil Nadu, India
| | - Murugesan Sankarganesh
- Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
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Asim S, Mansha A, Aslam S, Shahzad A. Study of Interactions Between 3-benzoyl-4-hydroxy-2-methyl-2H-1, 2-benzothiazine and Human DNA by Theoretical, Spectroscopic and Viscometric measurements. J Fluoresc 2023; 33:311-326. [PMID: 36414920 DOI: 10.1007/s10895-022-03045-7] [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: 09/23/2022] [Accepted: 10/15/2022] [Indexed: 11/24/2022]
Abstract
From the last few years mode of interactions between drugs and DNA is an attractive research area as it bridges chemistry, molecular biology and medicinal science. Interactions between small heterocyclic molecules and human DNA is a noteworthy feature in pharmacology for investigation of drugs mechanism and designing of more effective and target specific drugs with fewer side effects. The present research work focuses on the theoretical investigations of 3-benzoyl-4-hydroxy-2-methyl-2H-1, 2-benzothiazine (SASA) by using Gaussian (16 W) software to predict optimized geometry, HOMO-LUMO gap, bond length, bond angle, dihedral angle, electronic and vibrational spectra. Possible reaction site observed in SASA was C7, C9 and C18 as these atoms show maximum charge density. Later the interactions of SASA with human DNA was explored spectroscopic investigations and viscometric investigations at physiological buffers of pH of 4.7 (stomach pH) and 7.4 (blood pH) respectively. Maximum absorbance between SASA-DNA complex was observed in buffer solution of pH 3.4 at wavelength of 370 nm, whereas at 7.4 has maximim absorbance between. Spectroscopic results reflects the bathochromic and hyperchromic shift succeeding the addition of human DNA. During viscosity measurement, intercalation and electrostatic mode of interaction were detected at low and high concentration of drug in solution respectively. Increase in the value of rate constant was observed with the increase in concentration of drug. Larger values of rate constant were observed at pH 7.4 in comparison to pH 3.5. Rate constant, thermodynamic parameters and viscometric analysis prefers the intake of SASA via blood.
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Affiliation(s)
- Sadia Asim
- Department of Chemistry, Government College Women University, Faisalabad, Pakistan.
| | - Asim Mansha
- Department of Chemistry, Government College University, Faisalabad, Pakistan
| | - Sana Aslam
- Department of Chemistry, Government College Women University, Faisalabad, Pakistan
| | - Alina Shahzad
- Department of Chemistry, Government College Women University, Faisalabad, Pakistan
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7
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Das M, Brandao P, Mati SS, Roy S, Anoop A, James A, De S, Das UK, Laha S, Mondal J, Samanta BC, Maity T. Effect of ancillary ligand on DNA and protein interaction of the two Zn (II) and Co (III) complexes: experimental and theoretical study. J Biomol Struct Dyn 2022; 40:14188-14203. [PMID: 34842505 DOI: 10.1080/07391102.2021.2001377] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In the present work we have developed one mononuclear Zn(II) complex [Zn(L)(H2O)] (Complex 1) by utilizing a tetracoordinated ligand H2L, formed by simple condensation of 2, 2 dimethyl 1,3 diamino propane and 3- ethoxy salicylaldehyde and one newly designed mononuclear Co (III) complex [Co(L)(L1)] (complex 2) by utilizing (H2L) and 3- ethoxy salicylaldehyde(HL1) as an ancillary ligand. The newly developed complex 2 have been spectroscopically characterized. An interesting phenomenon has been noticed that in presence of ancillary ligand, the solubility in buffer solution and the thermal stability of complex 2 comparatively increases than 1. To check the effect of ancillary ligand, present in complex 2 towards the DNA and HSA binding efficacy, both the complexes have been taken into consideration to inspect their binding potentiality with the macromolecules. The 'on', 'off' fluorescence changes in presence of DNA and HSA, the binding constant values, obtained from electronic spectral titration, iodide induced quenching, competitive binding assay, circular dichroism (CD) spectral titration, time resolved fluorescence experiment unambiguously assure the better binding efficacy of complex 2 with the signal of minor groove binding mode with DNA along with no significant conformational changes of the macromolecules. The strong and spontaneous binding of complex 2 with CT-DNA is further supported by the Isothermal Titration Calorimetry (ITC) study. Furthermore TDDFT calculation of DNA with and without complex 2 significantly authorize the formation of complex 2-DNA adduct during the association. Finally Molecular Docking study properly verifies the experimental findings and provides justified explanation behinds experimental findings.
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Affiliation(s)
- Manik Das
- Department of Chemistry, P. K. College, Contai, India
| | - Paola Brandao
- Departamento de Química/CICEC, Universidade de Aveiro, Aveiro, Portugal
| | - Soumya Sundar Mati
- Department of Chemistry, Government General Degree College, Keshiary, India
| | - Saikat Roy
- Department of Chemistry, IIT Kharagpur, Kharagpur, India
| | | | - Anjima James
- Department of Applied Chemistry, Cochin University of Science and Technology, Cochin, India
| | - Susmita De
- Department of Applied Chemistry, Cochin University of Science and Technology, Cochin, India
| | - Uttam Kumar Das
- Department of Chemistry, School of Physical sciences, Mahatma Gandhi Central University, Motihari, India
| | - Soumik Laha
- Indian Institute of Chemical Biology CSIR, Kolkata, India
| | - Jisu Mondal
- Indian Institute of Chemical Biology CSIR, Kolkata, India
| | | | - Tithi Maity
- Department of Chemistry, P. K. College, Contai, India
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8
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Raghava T, Bhavana P, Banerjee S. An Electrochemical Investigation into the Redox Properties of Push‐Pull Dibenzodioxins and Comparative Analysis with Analogous Heteroacenes. ChemistrySelect 2022. [DOI: 10.1002/slct.202202839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Tanya Raghava
- Department of Chemistry Birla Institute of Technology and Science, Pilani, K.K. Birla Goa Campus NH 17B Bypass Road, Zuarinagar Goa 403726 India
| | - Purushothaman Bhavana
- Department of Chemistry Birla Institute of Technology and Science, Pilani, K.K. Birla Goa Campus NH 17B Bypass Road, Zuarinagar Goa 403726 India
| | - Subhadeep Banerjee
- Department of Chemistry Birla Institute of Technology and Science, Pilani, K.K. Birla Goa Campus NH 17B Bypass Road, Zuarinagar Goa 403726 India
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9
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Kecel Gunduz S, Budama Kilinc Y, Bicak B, Gok B, Belmen B, Aydogan F, Yolacan C. New Coumarin Derivative with Potential Antioxidant Activity: Synthesis, DNA Binding and In Silico Studies (Docking, MD, ADMET). ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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10
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Banerjee S, Phadte AA, Das M, Aduri R, Banerjee A. A Biophysical Investigation of DNA-Binding Interactions of Push-Pull Dibenzodioxins and Implications for in Vitro anti-Cancer Activity. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2078846] [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)
- Subhadeep Banerjee
- Department of Chemistry, BITS Pilani KK Birla Goa Campus, Sancoale, Goa, India
| | | | - Moitreyi Das
- Department of Biotechnology, Goa University, Taleigao, Goa, India
| | - Raviprasad Aduri
- Department of Biological Sciences, BITS Pilani KK Birla Goa Campus, Sancoale, Goa, India
| | - Arnab Banerjee
- Department of Biological Sciences, BITS Pilani KK Birla Goa Campus, Sancoale, Goa, India
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11
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A study of structure-activity relationship and anion-controlled quinolinyl Ag(I) complexes as antimicrobial and antioxidant agents as well as their interaction with macromolecules. Biometals 2022; 35:363-394. [PMID: 35275314 DOI: 10.1007/s10534-022-00377-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 02/18/2022] [Indexed: 12/18/2022]
Abstract
In this communication, we feature the synthesis and in-depth characterization of a series of silver(I) complexes obtained from the complexation of quinolin-4-yl Schiff base ligands ((E)-2-((quinolin-4-ylmethylene)amino)phenol La, 2-(quinolin-4-yl)benzo[d]thiazole Lb, (E)-N-(2-fluorophenyl)-1-(quinolin-4-yl)methanimine Lc, (E)-N-(4-chlorophenyl)-1-(quinolin-4-yl)methanimine Ld, (E)-1-(quinolin-4-yl)-N-(p-tolyl)methanimine Le, (E)-1-(quinolin-4-yl)-N-(thiophen-2-ylmethyl)methanimine Lf) and three different silver(I) anions (nitrate, perchlorate and triflate). Structurally, the complexes adopted different coordination geometries, which included distorted linear or distorted tetrahedral geometry. The complexes were evaluated in vitro for their potential antibacterial and antioxidant activities. In addition, their interactions with calf thymus-DNA (CT-DNA) and bovine serum albumin (BSA) were evaluated. All the complexes had a wide spectrum of effective antibacterial activity against gram-positive and gram-negative bacterial and good antioxidant properties. The interactions of the complexes with CT-DNA and BSA were observed to occur either through intercalation or through a minor groove binder, while the interaction of the complexes with BSA reveals that some of the complexes can strongly quench the fluorescence of BSA through the static mechanism. The molecular docking studies of the complexes were also done to further elucidate the modes of interaction with CT-DNA and BSA.
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12
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Alomari FY, Sharfalddin AA, Abdellattif MH, Domyati D, Basaleh AS, Hussien MA. QSAR Modeling, Molecular Docking and Cytotoxic Evaluation for Novel Oxidovanadium(IV) Complexes as Colon Anticancer Agents. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030649. [PMID: 35163913 PMCID: PMC8838224 DOI: 10.3390/molecules27030649] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/07/2022] [Accepted: 01/12/2022] [Indexed: 12/15/2022]
Abstract
Four new drug-based oxidovanadium (IV) complexes were synthesized and characterized by various spectral techniques, including molar conductance, magnetic measurements, and thermogravimetric analysis. Moreover, optimal structures geometry for all syntheses was obtained by the Gaussian09 program via the DFT/B3LYP method and showed that all of the metal complexes adopted a square-pyramidal structure. The essential parameters, electrophilicity (ω) value and expression for the maximum charge that an electrophile molecule may accept (ΔNmax) showed the practical biological potency of [VO(CTZ)2] 2H2O. The complexes were also evaluated for their propensity to bind to DNA through UV–vis absorption titration. The result revealed a high binding ability of the [VO(CTZ)2] 2H2O complex with Kb = 1.40 × 10⁶ M−1. Furthermore, molecular docking was carried out to study the behavior of the VO (II) complexes towards colon cancer cell (3IG7) protein. A quantitative structure–activity relationship (QSAR) study was also implemented for the newly synthesized compounds. The results of validation indicate that the generated QSAR model possessed a high predictive power (R2 = 0.97). Within the investigated series, the [VO(CTZ)2] 2H2O complex showed the greatest potential the most selective compound comparing to the stander chemotherapy drug.
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Affiliation(s)
- Fatimah Y. Alomari
- Chemistry Department, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 76971, Dammam 31441, Saudi Arabia;
| | - Abeer A. Sharfalddin
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (A.A.S.); (A.S.B.)
| | - Magda H. Abdellattif
- Department of Chemistry, College of Science, Taif University, Al-Haweiah, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Doaa Domyati
- Department of Chemistry, College of Science, University of Jeddah, P.O. Box 80327, Jeddah 21589, Saudi Arabia;
| | - Amal S. Basaleh
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (A.A.S.); (A.S.B.)
| | - Mostafa A. Hussien
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (A.A.S.); (A.S.B.)
- Department of Chemistry, Faculty of Science, Port Said University, Port Said 42521, Egypt
- Correspondence:
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Shekhar B, Rajeshwari K, Jayasree B, Anantha Lakshmi PV. Novel Metformin complexes: Geometry Optimization, Non‐isothermal Kinetic Parameters, DNA binding, on‐off light switching and Docking studies. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- B. Shekhar
- Department of Chemistry University College of Science, Osmania University, Tarnaka Hyderabad Telangana State India
- Department of Chemistry Malla Reddy Engineering College (Autonomous), Maisammaguda Hyderabad
| | - K. Rajeshwari
- Department of Chemistry University College of Science, Osmania University, Tarnaka Hyderabad Telangana State India
| | - B. Jayasree
- Department of Chemistry University College of Science, Osmania University, Tarnaka Hyderabad Telangana State India
| | - P. V. Anantha Lakshmi
- Department of Chemistry University College of Science, Osmania University, Tarnaka Hyderabad Telangana State India
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14
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Zeng G, Chen F, Lei Y, Zhou L, Yang X, Guo H, Tuo X, Guo Y. Revealing the binding properties between resorcinol and DNA. LUMINESCENCE 2021; 37:4-13. [PMID: 34499419 DOI: 10.1002/bio.4140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/12/2021] [Accepted: 09/06/2021] [Indexed: 01/08/2023]
Abstract
Resorcinol (1,3-dihydroxybenzene) is a common coupling agent in permanent hair dyes, and has arrested people's attention for its potential hazard to human health. However, the action mechanism of resorcinol and human DNA has not been elucidated. In this research, the binding properties between resorcinol and calf thymus DNA (ct-DNA) were studied for the first time through various spectral and molecular docking techniques. Spectral studies showed that the initial fluorescence quenching of resorcinol against DNA was a static one. The result of ΔH < 0 and ΔS > 0 was produced from thermodynamic experimental data, therefore it could be concluded that electrostatic force was the major driving force, while binding constant Kb was 1.56 × 104 M-1 at 298 K. The electrostatic binding network between resorcinol and ct-DNA was established explicitly through competitive substitution analysis and other spectral approaches. The results of FT-IR absorption spectra indicated that resorcinol had bound to the DNA phosphate skeleton. Molecular docking clearly revealed that binding occurred between hydroxyl groups of resorcinol and phosphorus oxygen bonds (P-O) of the DNA skeleton. These findings may deepen our understanding of the action mechanism between resorcinol and ct-DNA and provide some useful data on the effect of resorcinol on human diseases.
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Affiliation(s)
- Guofang Zeng
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| | - Fengping Chen
- School of Pharmacy, Nanchang University, Nanchang, Jiangxi, China
| | - Yating Lei
- School of Pharmacy, Nanchang University, Nanchang, Jiangxi, China
| | - Like Zhou
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| | - Xi Yang
- School of Pharmacy, Nanchang University, Nanchang, Jiangxi, China
| | - Hui Guo
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| | - Xun Tuo
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| | - Ying Guo
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
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15
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Pursuwani BH, Bhatt BS, Vaidya FU, Pathak C, Patel MN. Fluorescence, DNA Interaction and Cytotoxicity Studies of 4,5-Dihydro-1H-Pyrazol-1-Yl Moiety Based Os(IV) Compounds: Synthesis, Characterization and Biological Evaluation. J Fluoresc 2021; 31:349-362. [PMID: 33389418 DOI: 10.1007/s10895-020-02657-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 12/03/2020] [Indexed: 10/22/2022]
Abstract
Osmium(IV) pyrazole compounds and ligands were synthesized and well characterised. Ligands were characterized by heteronuclear NMR spectroscopy (1H & 13C), elemental analysis, IR spectroscopy and liquid crystal mass spectroscopy. Os(IV) complexes were characterized by ESI-MS, ICP-OES, IR spectroscopy, conductance measurements, magnetic measurements and electronic spectroscopy. Binding of compounds with HS-DNA were evaluated using viscosity measurements, absorption titration, fluorescence quenching, and molecular docking, which show effective intercalation mode exhibited by compounds. Binding constant of Os(IV) complexes are found to be 8.1 to 9.2 × 104 M-1. Bacteriostatic and cytotoxic activities were carried out to evaluate MIC, LC50, and IC50. The compounds have been undergone bacteriostatic screening using three sets of Gram+ve and two sets of Gram-ve bacteria. MIC of complexes are found to be 72.5-100 μM, whereas that of ligands fall at about 122.5-150 μM.. LC50 count of ligands fall in the range of 16.22-17.28 μg/mL whereas that of complexes of Os(IV) fall in the range of 4.87-5.87 μg/mL. IC50 of osmium compounds were evaluated using HCT-116 cell line. All the Os(IV) compounds show moderate IC50.
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Affiliation(s)
- Bharat H Pursuwani
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Gujarat, 388 120, India
| | - Bhupesh S Bhatt
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Gujarat, 388 120, India
| | - Foram U Vaidya
- Cell Biology Laboratory, Indian Institute of Advanced Research, Koba, Gandhinagar, Gujarat, 382421, India
| | - Chandramani Pathak
- Cell Biology Laboratory, Indian Institute of Advanced Research, Koba, Gandhinagar, Gujarat, 382421, India
| | - Mohan N Patel
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Gujarat, 388 120, India.
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Tokala R, Sana S, Lakshmi UJ, Sankarana P, Sigalapalli DK, Gadewal N, Kode J, Shankaraiah N. Design and synthesis of thiadiazolo-carboxamide bridged β-carboline-indole hybrids: DNA intercalative topo-IIα inhibition with promising antiproliferative activity. Bioorg Chem 2020; 105:104357. [PMID: 33091673 PMCID: PMC7543778 DOI: 10.1016/j.bioorg.2020.104357] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/03/2020] [Accepted: 10/05/2020] [Indexed: 02/05/2023]
Abstract
The conjoining of salient pharmacophoric properties directing the development of prominent cytotoxic agents was executed by constructing thiadiazolo-carboxamide bridged β-carboline-indole hybrids. On the evaluation of in vitro cytotoxic potential, 12c exhibited prodigious cytotoxicity among the synthesized new molecules 12a-k, with an IC50 < 5 μM in all the tested cancer cell lines (A549, MDA-MB-231, BT-474, HCT-116, THP-1) and the best cytotoxic potential was expressed in lung cancer cell line (A549) with an IC50 value of 2.82 ± 0.10 μM. Besides, another compound 12a also displayed impressive cytotoxicity against A549 cell line (IC50: 3.00 ± 1.40 μM). Further target-based assay of these two compounds 12c and 12a revealed their potential as DNA intercalative topoisomerase-IIα inhibitors. Additionally, the antiproliferative activity of compound 12c was measured in A549 cells by traditional apoptosis assays revealing the nuclear, morphological alterations, and depolarization of membrane potential in mitochondria and externalization of phosphatidylserine in a concentration-dependent manner. Cell cycle analysis unveiled the G0/G1 phase inhibition and wound healing assay inferred the inhibition of in vitro cell migration by compound 12c in lung cancer cells. Remarkably, the safety profile of compound 12c was disclosed by screening against normal human lung epithelial cell line (BEAS-2B: IC50: 71.2 ± 7.95 μM) with a selectivity index range of 14.9-25.26. Moreover, Molecular modeling studies affirm the intercalative binding of compound 12c and 12a in the active pocket of topo-IIα. Furthermore, in silico prediction of physico-chemical parameters divulged the propitious drug-like properties of the synthesized derivatives.
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Affiliation(s)
- Ramya Tokala
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Sravani Sana
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Uppu Jaya Lakshmi
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Prasanthi Sankarana
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Dilep Kumar Sigalapalli
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Nikhil Gadewal
- Bioinformatics Centre, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India
| | - Jyoti Kode
- Tumor Immunology & Immunotherapy Group, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi-Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
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Pursuwani BH, Bhatt BS, Vaidya FU, Pathak C, Patel MN. Tetrazolo[1,5-a]quinoline moiety-based Os(IV) complexes: DNA binding/cleavage, bacteriostatic and photocytotoxicity assay. J Biomol Struct Dyn 2020; 39:2894-2903. [PMID: 32299292 DOI: 10.1080/07391102.2020.1756912] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Biological applications of platinum group metal-based complexes have been widely explored in synthetic and inorganic chemistry. The compounds have been subjected to DNA binding, DNA cleavage, In-vivo and In-vitro photocytotoxicity (HCT-116 cell line) and bacteriostatic activities. Binding constant of complexes are 1.42-5.62 × 104 M-1, whereas that of ligands are 1.12-4.72 × 104 M-1. Ksv of complexes are about 1.32-5.21 × 103 M-1, whereas Kf is about 1.24-6.83 × 103 M-1. IC50 of compounds screened using HCT-116 cell line in dark are found to be 121-342 μg/mL. Whereas photocytotoxicity is found in the range of 48-316 μg/mL. Docking energy of molecules have been evaluated to evaluate efficacy of binding. Molecular docking energy of complexes are in the range of -286.00 to -303.11 kJ/mol. Whereas that of ligands are -254.03 to -282.96 kJ/mol. MIC of complexes are 47 ± 2.5 to 77.50 ± 7.5 μM. LC50 values of ligands fall in the range of 4.05-19.72 μg/mL and that of Os(IV) complexes fall in the range of 3.99-15.99 μg/mL. The Os(IV) complexes dominate in proving its potentiality compared to N, N-donor ligands in biological activities. [Formula: see text]Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Bharat H Pursuwani
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Gujarat, India
| | - Bhupesh S Bhatt
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Gujarat, India
| | - Foram U Vaidya
- Indian Institute of Advanced Research Koba, Gandhinagar, Gujarat, India
| | | | - Mohan N Patel
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Gujarat, India
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Mirzaei-Kalar Z, Yavari A, Jouyban A. Increasing DNA binding affinity of doxorubicin by loading on Fe 3O 4 nanoparticles: A multi-spectroscopic study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:117985. [PMID: 31901801 DOI: 10.1016/j.saa.2019.117985] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/14/2019] [Accepted: 12/20/2019] [Indexed: 06/10/2023]
Abstract
Magnetic Fe3O4 nanoparticles were synthesized successfully by co-precipitation method and characterized using XRD, SEM and EDS analyses. Then doxorubicin (DOX, a known anticancer drug) was loaded onto nanoparticles. In vitro DNA interaction of free DOX and loaded DOX onto Fe3O4 nanoparticles (DOX-Fe3O4) was investigated by DNA-viscosity measurements, UV-visible and fluorescence spectroscopies. The obtained values for binding constant of DOX and DOX-Fe3O4 compounds from UV-visible spectroscopies were 0.04 × 105 and 0.68 × 105 L mol-1, respectively, which confirms DOX-Fe3O4 compound have a stronger interaction with CT-DNA compared to DOX. Considerable changes on viscosity of the compounds recommended that their binding mode with CT-DNA is intercalative binding. Fluorescence intensity of DOX and DOX-Fe3O4 was quenched via static process by regular addition of CT-DNA. Thermodynamic parameters suggest that Van der Waals forces and hydrogen bonding for DOX and electrostatic forces for DOX-Fe3O4 are predominantly responsible for interaction with CT-DNA. Competition fluorescence studies were done by Hoechst 33258 as a well-known groove binder and ethidium bromide (EtBr) as a known intercalator probe. Percentage of displacement for EtBr-DNA complex with DOX and DOX-Fe3O4 was 39% and 61%, and for Hoechst-DNA complex was 9% and 5%, respectively. These results confirmed that both compounds are intercalator binders, although DOX-Fe3O4 with a further 22% displacement is a stronger intercalator binder than DOX. The stronger interaction of DOX-Fe3O4 compared to DOX suggests that the current system can be used as a new and effective way to targeted therapy of anticancer drugs.
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Affiliation(s)
- Zeinab Mirzaei-Kalar
- Department of Materials Engineering and Nanotechnology, Sabalan University of Advanced Technologies (SUAT), Namin, Iran; Department of Advanced Technologies, University of Mohaghegh Ardabili, Namin, Ardabil, Iran.
| | - Azin Yavari
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 51666-14766, Iran
| | - Abolghasem Jouyban
- Pharmaceutical 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
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