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Wei Y, Zhang D, Pan J, Gong D, Zhang G. Elucidating the Interaction of Indole-3-Propionic Acid and Calf Thymus DNA: Multispectroscopic and Computational Modeling Approaches. Foods 2024; 13:1878. [PMID: 38928819 PMCID: PMC11202999 DOI: 10.3390/foods13121878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/05/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024] Open
Abstract
Indole-3-propionic acid (IPA) is a plant growth regulator with good specificity and long action. IPA may be harmful to human health because of its accumulation in vegetables and fruits. Therefore, in this study, the properties of the interaction between calf thymus DNA (ctDNA) and IPA were systematically explored using multispectroscopic and computational modeling approaches. Analysis of fluorescence spectra showed that IPA binding to ctDNA to spontaneously form a complex was mainly driven by hydrogen bonds and hydrophobic interaction. DNA melting analysis, viscosity analysis, DNA cleavage study, and circular dichroism measurement revealed the groove binding of IPA to ctDNA and showed that the binding did not significantly change ctDNA confirmation. Furthermore, molecular docking found that IPA attached in the A-T rich minor groove region of the DNA. Molecular dynamics simulation showed that DNA and IPA formed a stable complex and IPA caused slight fluctuations for the residues at the binding site. Gel electrophoresis experiments showed that IPA did not significantly disrupt the DNA structure. These findings may provide useful information on the potential toxicological effects and environmental risk assessments of IPA residue in food at the molecular level.
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Affiliation(s)
| | | | | | | | - Guowen Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China; (Y.W.); (D.Z.); (J.P.); (D.G.)
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2
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Abdelaatti A, Buggy DJ, Wall TP. Local anaesthetics and chemotherapeutic agents: a systematic review of preclinical evidence of interactions and cancer biology. BJA OPEN 2024; 10:100284. [PMID: 38741694 PMCID: PMC11089318 DOI: 10.1016/j.bjao.2024.100284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 04/02/2024] [Indexed: 05/16/2024]
Abstract
Background Local anaesthetics are widely used for their analgesic and anaesthetic properties in the perioperative setting, including surgical procedures to excise malignant tumours. Simultaneously, chemotherapeutic agents remain a cornerstone of cancer treatment, targeting rapidly dividing cancer cells to inhibit tumour growth. The potential interactions between these two drug classes have drawn increasing attention and there are oncological surgical contexts where their combined use could be considered. This review examines existing evidence regarding the interactions between local anaesthetics and chemotherapeutic agents, including biological mechanisms and clinical implications. Methods A systematic search of electronic databases was performed as per Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines. Selection criteria were designed to capture in vitro, in vivo, and clinical studies assessing interactions between local anaesthetics and a wide variety of chemotherapeutic agents. Screening and data extraction were performed independently by two reviewers. The data were synthesised using a narrative approach because of the anticipated heterogeneity of included studies. Results Initial searches yielded 1225 relevant articles for screening, of which 43 met the inclusion criteria. The interactions between local anaesthetics and chemotherapeutic agents were diverse and multifaceted. In vitro studies frequently demonstrated altered cytotoxicity profiles when these agents were combined, with variations depending on the specific drug combination and cancer cell type. Mechanistically, some interactions were attributed to modifications in efflux pump activity, tumour suppressor gene expression, or alterations in cellular signalling pathways associated with tumour promotion. A large majority of in vitro studies report potentially beneficial effects of local anaesthetics in terms of enhancing the antineoplastic activity of chemotherapeutic agents. In animal models, the combined administration of local anaesthetics and chemotherapeutic agents showed largely beneficial effects on tumour growth, metastasis, and overall survival. Notably, no clinical study examining the possible interactions of local anaesthetics and chemotherapy on cancer outcomes has been reported. Conclusions Reported preclinical interactions between local anaesthetics and chemotherapeutic agents are complex and encompass a spectrum of effects which are largely, although not uniformly, additive or synergistic. The clinical implications of these interactions remain unclear because of the lack of prospective trials. Nonetheless, the modulation of chemotherapy effects by local anaesthetics warrants further clinical investigation in the context of cancer surgery where they could be used together. Clinical trial registration Open Science Framework (OSF, project link: https://osf.io/r2u4z).
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Affiliation(s)
- Ahmed Abdelaatti
- Department of Anaesthesiology & Perioperative Medicine, Mater Misericordiae University Hospital, School of Medicine, University College Dublin, Dublin, Ireland
| | - Donal J. Buggy
- Department of Anaesthesiology & Perioperative Medicine, Mater Misericordiae University Hospital, School of Medicine, University College Dublin, Dublin, Ireland
- EuroPeriscope, European Society of Anaesthesiology and Intensive Care - Onco-Anaesthesiology Research Group, Brussels, Belgium
- Outcomes Research Consortium, Cleveland Clinic, Cleveland, OH, USA
| | - Thomas P. Wall
- Department of Anaesthesiology & Perioperative Medicine, Mater Misericordiae University Hospital, School of Medicine, University College Dublin, Dublin, Ireland
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Zhao W, Wang C, Zhu Y, Wang Q, Xu X, Shao Z, Chen M, Feng Y, Meng X. Visualized Tracking and Multidimensional Assessing of Mitochondria-Associated Pyroptosis in Cancer Cells by a Small-Molecule Fluorescent Probe. Anal Chem 2024; 96:6381-6389. [PMID: 38593059 DOI: 10.1021/acs.analchem.4c00318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Pyroptosis is closely related to the development and treatment of various cancers; thus, comprehensive studies of the correlations between pyroptosis and its inductive or inhibitive factors can provide new ideas for the intervention and diagnosis of tumors. The dysfunction of mitochondria may induce pyroptosis in cancer cells, which can be reflected by the fluctuations of the microenvironmental parameters in mitochondria as well as the changes of mitochondrial DNA level and morphology, etc. To precisely track and assess the mitochondria-associated pyroptosis process, simultaneous visualization of changes in multiphysiological parameters in mitochondria is highly desirable. In this work, we reported a nonreaction-based, multifunctional small-molecule fluorescent probe Mito-DK with the capability of crosstalk-free response to polarity and mtDNA as well as mitochondrial morphology. Accurate assessment of mitochondria-associated pyroptosis induced by palmitic acid/H2O2 was achieved through monitoring changes in mitochondrial multiple parameters with the help of Mito-DK. In particular, the pyroptosis-inducing ability of an antibiotic doxorubicin and the pyroptosis-inhibiting capacity of an anticancer agent puerarin were evaluated by Mito-DK. These results provide new perspectives for visualizing mitochondria-associated pyroptosis and offer new approaches for screening pyroptosis-related anticancer agents.
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Affiliation(s)
- Wenhao Zhao
- School of Chemistry and Chemical Engineering & Institutes of Physical Science and Information Technology, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials & Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Chengyuan Wang
- School of Chemistry and Chemical Engineering & Institutes of Physical Science and Information Technology, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials & Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Yanzhe Zhu
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei 230022, P. R. China
| | - Qi Wang
- School of Chemistry and Chemical Engineering & Institutes of Physical Science and Information Technology, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials & Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Xianyun Xu
- School of Chemistry and Chemical Engineering & Institutes of Physical Science and Information Technology, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials & Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Zonglong Shao
- School of Chemistry and Chemical Engineering & Institutes of Physical Science and Information Technology, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials & Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Man Chen
- School of Chemistry and Chemical Engineering & Institutes of Physical Science and Information Technology, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials & Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Yan Feng
- School of Chemistry and Chemical Engineering & Institutes of Physical Science and Information Technology, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials & Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Xiangming Meng
- School of Chemistry and Chemical Engineering & Institutes of Physical Science and Information Technology, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials & Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, P. R. China
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Ali MS, Waseem M, Subbarao N, Alahamed AN, Al-Lohedan HA. Probing the interaction of cephalosporin antibiotic "cefoperazone" with lysozyme using spectroscopic and in silico methods: Effect of paracetamol on binding. Int J Biol Macromol 2023; 252:126568. [PMID: 37640184 DOI: 10.1016/j.ijbiomac.2023.126568] [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: 04/15/2023] [Revised: 08/16/2023] [Accepted: 08/25/2023] [Indexed: 08/31/2023]
Abstract
The interaction of lysozyme with cefoperazone was studied by means of spectroscopic and computational approaches. The change in the UV-visible spectrum of lysozyme in presence of cefoperazone was an indication of the complex formation between them. Fluorescence spectroscopy suggested that there was a fair interaction between the protein and drug which was taken place via dynamic quenching mechanism and the binding ratio was approximately 1:1. The binding was energetically feasible and principally supported by the hydrophobic forces. CD spectroscopic studies have shown that cefoperazone induced the secondary structure of lysozyme by increasing the α-helical contents of the latter. In silico studies revealed that the large nonpolar cavity was the preferred binding site of cefoperazone within lysozyme and the interaction was taken place mainly through hydrophobic forces with small involvement of hydrogen bonding and electrostatic interactions which is in good agreement with the experimental analyses. Effect of paracetamol was also seen on the binding and it was found that paracetamol had a negative influence on the binding between cefoperazone and lysozyme.
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Affiliation(s)
- Mohd Sajid Ali
- Surfactant Research Chair, Department of Chemistry, College of Science, King Saud University, P.O. Box-2455, Riyadh 11451, Saudi Arabia.
| | - Mohd Waseem
- School of Computational and Integrative Science, Jawaharlal Nehru University, New Delhi, India
| | - Naidu Subbarao
- School of Computational and Integrative Science, Jawaharlal Nehru University, New Delhi, India
| | - Abdullah Nasser Alahamed
- Surfactant Research Chair, Department of Chemistry, College of Science, King Saud University, P.O. Box-2455, Riyadh 11451, Saudi Arabia
| | - Hamad A Al-Lohedan
- Surfactant Research Chair, Department of Chemistry, College of Science, King Saud University, P.O. Box-2455, Riyadh 11451, Saudi Arabia
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5
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Ali MS, Muthukumaran J, Jain M, Tariq M, Al-Lohedan HA, Al-Sanea ASS. Detailed Experimental and In Silico Investigation of Indomethacin Binding with Human Serum Albumin Considering Primary and Secondary Binding Sites. Molecules 2023; 28:molecules28072979. [PMID: 37049745 PMCID: PMC10095894 DOI: 10.3390/molecules28072979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/19/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
The interaction of indomethacin with human serum albumin (HSA) has been studied here considering the primary and secondary binding sites. The Stern–Volmer plots were linear in the lower concentration range of indomethacin while a downward curvature was observed in the higher concentration range, suggesting the presence of more than one binding site for indomethacin inside HSA due to which the microenvironment of the fluorophore changed slightly and some of its fraction was not accessible to the quencher. The Stern–Volmer quenching constants (KSV) for the primary and secondary sites were calculated from the two linear portions of the Stern–Volmer plots. There was around a two-fold decrease in the quenching constants for the low-affinity site as compared to the primary binding site. The interaction takes place via a static quenching mechanism and the KSV decreases at both primary and secondary sites upon increasing the temperature. The binding constants were also evaluated, which show strong binding at the primary site and fair binding at the secondary site. The binding was thermodynamically favorable with the liberation of heat and the ordering of the system. In principle, hydrogen bonding and Van der Waals forces were involved in the binding at the primary site while the low-affinity site interacted through hydrophobic forces only. The competitive binding was also evaluated using warfarin, ibuprofen, hemin, and a warfarin + hemin combination as site markers. The binding profile remained unchanged in the presence of ibuprofen, whereas it decreased in the presence of both warfarin and hemin with a straight line in the Stern–Volmer plots. The reduction in the binding was at a maximum when both warfarin and hemin were present simultaneously with the downward curvature in the Stern–Volmer plots at higher concentrations of indomethacin. The secondary structure of HSA also changes slightly in the presence of higher concentrations of indomethacin. Molecular dynamics simulations were performed at the primary and secondary binding sites of HSA which are drug site 1 (located in the subdomain IIA of the protein) and the hemin binding site (located in subdomain IB), respectively. From the results obtained from molecular docking and MD simulation, the indomethacin molecule showed more binding affinity towards drug site 1 followed by the other two sites.
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Affiliation(s)
- Mohd Sajid Ali
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Correspondence:
| | - Jayaraman Muthukumaran
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida 201310, India
| | - Monika Jain
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida 201310, India
| | - Mohammad Tariq
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Hamad A. Al-Lohedan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abdullah Saad S. Al-Sanea
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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Shaver A, Arroyo-Currás N. Expanding the Monolayer Scope for Nucleic Acid-Based Electrochemical Sensors Beyond Thiols on Gold: Alkylphosphonic Acids on ITO. ECS SENSORS PLUS 2023; 2:010601. [PMID: 37006966 PMCID: PMC10053865 DOI: 10.1149/2754-2726/acc4d9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/15/2023] [Indexed: 03/18/2023]
Abstract
Electrochemical biosensors are a powerful and rapidly evolving molecular monitoring technology. Evidenced by the success of the continuous glucose monitor in managing Type 1 Diabetes, these sensors are capable of precise, accurate measurements in unprocessed biological environments. Nucleic acid-based electrochemical sensors (NBEs) are a specific type of biosensor that employs the target binding and conformational dynamics of nucleic acids for signal transduction. Currently, the vast majority of NBEs are fabricated via self-assembly of alkylthiols on Au electrodes. However, this architecture is limited in scope, as Au electrodes are not universally deployable for all potential NBE applications. Here, to expand the repertoire of materials on which NBEs can be made, we describe the multistep procedure for creating sensing monolayers of alkylphosphonic acids on a conductive oxide surface. Using such monolayers on indium tin oxide (ITO)-coated glass slides, we couple redox reporter-modified nucleic acids and demonstrate signaling of procaine-binding NBE sensors in buffer and human serum. We investigate the operational stability of these NBE sensors to reveal faster signal loss relative to benchmark thiol-on-gold sensing layers, a result that arises due to poor stability of the underlying ITO. Finally, we discuss future directions to continue expansion of NBE sensor materials and applications.
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Affiliation(s)
- Alexander Shaver
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21202, United States of America
| | - Netzahualcóyotl Arroyo-Currás
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21202, United States of America
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, Whiting School of Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States of America
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Rahman Y, Afrin S, Perwez A, Ansari MO, Sarwar T, Ahmed S, Rizvi MA, Shadab GGHA, Tabish M. Nizatidine interacts with ct-DNA causing genotoxicity and cytotoxicity: an assessment by in vitro, in vivo, and in silico studies. J Biomol Struct Dyn 2023; 41:538-549. [PMID: 34856883 DOI: 10.1080/07391102.2021.2008496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
H2 receptor antagonists are the medication given for treating stomach ulcers, but lately, reports have shown their role in healing several malignant ulcers. The present work entails the interaction of H2 blocker nizatidine with calf thymus (ct)-DNA for determining the binding mode and energetics of the interaction. Multi-spectroscopic, calorimetric, viscometric and bioinformatic analysis revealed that nizatidine interacted with ct-DNA via groove-binding mode and is characterised by exothermic reaction. Moreover, assessment of genotoxic potential of nizatidine in vitro was carried out in peripheral human lymphocytes by alkaline comet assay. DNA damage occurred at high concentrations of nizatidine. Genotoxicity of nizatidine was also evaluated in vivo by assessing cytogenetic biomarkers viz. micronuclei formation and chromosomal aberration test. Nizatidine was able to induce micronuclei formation and chromosomal damage at high dose. Additionally, cytotoxic activity of nizatidine was determined in cancer cell lines, namely HeLa and HCT-116 and compared with the normal human cell line HEK-293 employing MTT assay. It was observed that nizatidine was more toxic towards HeLa and HCT-116 than HEK-293. Cell morphology analysis by compound inverted microscopy further strengthens the finding obtained through MTT assay.
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Affiliation(s)
- Yusra Rahman
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, India
| | - Shumaila Afrin
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, India
| | - Ahmad Perwez
- Department of Biosciences, Jamia Millia Islamia, New Delhi
| | - Mohd Owais Ansari
- Department of Zoology, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Tarique Sarwar
- Department of Biosciences, Jamia Millia Islamia, New Delhi
| | - Shahbaz Ahmed
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, India
| | | | - G G Hammad A Shadab
- Department of Zoology, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Mohammad Tabish
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, India
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8
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Kumar P, Kumar U, Huang YC, Tsai PY, Liu CH, Wu CH, Huang WM, Chen KL. Photocatalytic activity of a hydrothermally synthesized γ-Fe2O3@Au/MoS2 heterostructure for organic dye degradation under green light. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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9
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Ahmadi Oskooei F, Mehrzad J, Asoodeh A, Motavalizadehkakhky A. Multi-spectroscopic characteristics of olive oil-based Quercetin nanoemulsion (QuNE) interactions with calf thymus DNA and its anticancer activity. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120317] [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]
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10
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Exploring the HSA/DNA/lung cancer cells binding behavior of p-Synephrine, a naturally occurring phenyl ethanol amine with anti-adipogenic activity: multi spectroscopic, molecular dynamic and cellular approaches. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Haroon M, Ashraf M, Ullah N, Nawaz Tahir M, Al-Saadi AA. SERS and EC-SERS detection of local anesthetic procaine using Pd loaded highly reduced graphene oxide nanocomposite substrate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 278:121381. [PMID: 35588604 DOI: 10.1016/j.saa.2022.121381] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 05/02/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
The localized surface plasmon resonance (LSPR) excitations are critical towards achieving sizable spectral enhancements of the Raman scattered light. Herein, the synthesis of palladium-based highly reduced graphene oxide (Pd-HRG) with LSPR properties as an effective surface-enhanced Raman scattering (SERS) substrate and its utility in the highly sensitive detection of procaine are reported. The concentration detection of procaine samples was optimized by applying a set of pre-concentration parameters. The Pd-HRG nanocomposite showed a remarkable LSPR response with a Raman enhancement factor of 8.7 × 102. The Pd-HRG is employed to modify fluorine doped tin oxide electrode (Pd-HRG/FTO), resulted with an enhancement factor of 7.5 × 104 corresponding to the EC-SERS technique. The electronic and surface properties of synthesized Pd-HRG and functionalized FTO electrode were evaluated using Raman, infrared, EIS, XRD, FESEM and EDX techniques. Quantum chemical calculations were carried out to elaborate on the nature of interaction of procaine molecules with a nanostructured surface model. Pd-HRG, with an efficient and cost-effective fabrication, can be considered as a promising EC-SERS substrate for the detection of organic therapeutic drugs.
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Affiliation(s)
- Muhammad Haroon
- Department of Chemistry, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Muhammad Ashraf
- Department of Chemistry, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Nisar Ullah
- Department of Chemistry, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Muhammad Nawaz Tahir
- Department of Chemistry, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia; Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia.
| | - Abdulaziz A Al-Saadi
- Department of Chemistry, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia; Interdisciplinary Research Center for Refining and Advanced Chemicals, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia.
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12
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Abdellattif MH, Elkamhawy A, Hagar M, Hadda TB, Shehab WS, Mansy W, Belal A, Arief MMH, Hussien MA. Novel saccharin analogs as promising antibacterial and anticancer agents: synthesis, DFT, POM analysis, molecular docking, molecular dynamic simulations, and cell-based assay. Front Pharmacol 2022; 13:958379. [PMID: 36267293 PMCID: PMC9577234 DOI: 10.3389/fphar.2022.958379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/04/2022] [Indexed: 11/27/2022] Open
Abstract
Saccharine is a pharmacologically significant active scaffold for various biological activities, including antibacterial and anticancer activities. Herein, saccharinyl hydrazide (1) was synthesized and converted into 2-[(2Z)-2-(1,1-dioxo-1,2-dihydro-3H-1λ6,2- benzothiazole-3-ylidene) hydrazinyl] acetohydrazide (5), which was employed as a key precursor for synthesizing a novel series of small molecules bearing different moieties of monosaccharides, aldehydes, and anhydrides. Potent biological activities were found against Staphylococcus and Escherichia coli, and the results indicated that compounds 6c and 10a were the most active analogs with an inhibition zone diameter of 30–35 mm. In cell-based anticancer assay over Ovcar-3 and M-14 cell lines, compound 10a was the most potent analog with IC50 values of 7.64 ± 0.01 and 8.66 ± 0.01 µM, respectively. The Petra Orisis Molinspiration (POM) theoretical method was used to calculate the drug score of tested compounds and compare them with their experimental screening data. Theoretical DFT calculations were carried out in a gas phase in a set of B3LYP 6-311G (d,p). Molecular docking studies utilizing the MOE indicated the best binding mode with the highest energy interaction within the binding sites. The molecular docking for Ovcar-3 was carried out on the ovarian cancer protein (3W2S), while the molecular docking for M-14 melanoma was carried out on the melanoma cancer protein (2OPZ). The MD performed about 2ns simulations to validate selected compounds’ theoretical studies.
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Affiliation(s)
- Magda H. Abdellattif
- Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia
- *Correspondence: Magda H. Abdellattif, ; M. M. H. Arief,
| | - Ahmed Elkamhawy
- College of Pharmacy, Dongguk University-Seoul, Goyang, South Korea
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Mohamed Hagar
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Taibi Ben Hadda
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
- Laboratory of Applied Chemistry and Environment, Faculty of Sciences, Mohammed Premier University, Oujda, Morocco
| | - Wesam S. Shehab
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig, Egypt
| | - Wael Mansy
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Amany Belal
- Department of Pharmaceutical Chemistry, College of Pharmacy Taif University, Taif, Saudi Arabia
| | - M. M. H. Arief
- Department of Chemistry, Faculty of Science, Benha University, Benha, Egypt
- *Correspondence: Magda H. Abdellattif, ; M. M. H. Arief,
| | - Mostafa A. Hussien
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Chemistry, Faculty of Science, Port Said University, Port Said, Egypt
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13
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Naki T, Matshe W, Ubanako P, Adeyemi SA, Balogun M, Sinha Ray S, Choonara YE, Aderibigbe BA. Dopamine-Loaded Polymer-Drug Conjugates for Potential Synergistic Anti-Cancer Treatment. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2022.2029895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Tobeka Naki
- Department of Chemistry, University of Fort Hare, Alice, South Africa
| | - W. Matshe
- Polymer and Composites, CSIR Materials Science and Manufacturing, Pretoria, South Africa
| | - Philemon Ubanako
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Science, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Samson A. Adeyemi
- DST/CSIR National Centre for Nanostructured Materials, Council for Scientific and Industrial Research, Pretoria, South Africa
| | - M.O. Balogun
- Polymer and Composites, CSIR Materials Science and Manufacturing, Pretoria, South Africa
| | - S. Sinha Ray
- DST/CSIR National Centre for Nanostructured Materials, Council for Scientific and Industrial Research, Pretoria, South Africa
| | - Yahya E. Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Science, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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SAXS Analysis and Characterization of Anticancer Activity of PNP-UDP Family Protein from Putranjiva roxburghii. Protein J 2022; 41:381-393. [PMID: 35674860 DOI: 10.1007/s10930-022-10060-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2022] [Indexed: 10/18/2022]
Abstract
A class of plant defense and storage proteins, including Putranjiva roxburghii PNP protein (PRpnp), belongs to PNP-UDP family. The PRpnp and related plant proteins contain a disrupted PNP-UDP domain as revealed in previous studies. In PRpnp, the insert disrupting the domain contains the trypsin inhibitory site. In the present work, we analyzed native PRpnp (nPRpnp) complex formation with trypsin and inosine using SAXS experiments and established its dual functionality. Results indicated a relatively compact nPRpnp:Inosine structure, whereas trypsin complex showed conformational changes/flexibility. nPRpnp also exhibited a strong anti-cancer activity toward breast cancer (MCF-7), prostate cancer (DU-145) and hepatocellular carcinoma (HepG2) cell lines. MCF-7 and DU-145 were more sensitive to nPRpnp treatment as compared to HepG2. However, nPRpnp treatment showed no effect on the viability of HEK293 cells indicating that nPRpnp is specific for targeting the viability of only cancer cells. Further, acridine orange, DAPI and DNA fragmentation studies showed that cytotoxic effect of nPRpnp is mediated through induction of apoptosis as evident from the apoptosis-associated morphological changes and nuclear fragmentation observed after PRpnp treatment of cancer cells. These results suggest that PRpnp has the potential to be used as an anticancer agent. This is first report of anticancer activity as well as SAXS-based analysis for a PNP enzyme with trypsin inhibitory activity.
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Nariya P, Kumar S, Seshadri S, Patel M, Thakore S. Novel Substituted Isoindolinones Derived from Lawsone: Synthesis, Characterization, Theoretical, Biological Activity and Docking Studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Shahabadi N, Ghaffari L, Mardani Z, Shiri F. Experimental and Molecular Docking Studies on the Interaction of a Water-Soluble Pd(II) Complex Containing β-Amino Alcohol with Calf Thymus DNA. Biol Trace Elem Res 2022; 200:1988-2000. [PMID: 34218426 DOI: 10.1007/s12011-021-02803-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 06/18/2021] [Indexed: 02/03/2023]
Abstract
The interaction of water-soluble and fluorescent [Pd (HEAC) Cl2] complex, in which HEAC is 2-((2-((2-hydroxyethyl)amino)ethyl)amino) cyclohexanol, with calf thymus DNA (ct-DNA) has been studied. This study was performed using electronic absorption and fluorescence emission spectroscopies, cyclic voltammetry and circular dichroism analyses, dynamic viscosity measurements, and molecular docking theory. From hypochromic effect observed in ct-DNA absorption spectra, it was found that the Pd(II) complex could form a conjugate with ct-DNA strands through the groove binding mode. The Kb values obtained from fluorescence measurements clearly assert the Pd(II) complex affinity to ct-DNA. The fluorescence quenching of the DNA-Hoechst compound following the successive additions of the Pd(II) complex to the solution revealed that the Pd(II) complex is located in the ct-DNA grooves, and Hoechst molecules have been released into solution; moreover, the resulting measurements from relative viscosity authenticate the Pd(II) complex binding to the grooves. Negative quantities of thermodynamic parameters imply that the Pd(II) complex binds to ct-DNA mainly by the hydrogen bonds and van der Waals forces; also, the Gibbs-free energy changes show the exothermic and spontaneous formation of the Pd(II) complex-DNA system. The electrochemical behavior of the Pd(II) complex in the attendance of ct-DNA was investigated using the cyclic voltammetry method (CV). Several quasi-reversible redox waves were observed along with increasing the anodic/cathodic peak currents, as well as a shift in anodic/cathodic peak potentials. Circular dichroism (CD) observations suggested that the Pd(II)-DNA interaction could alter ct-DNA conformation. The results of molecular modeling confirmed that groove mechanism is followed by the Pd(II) complex to interact with ct-DNA.
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Affiliation(s)
- Nahid Shahabadi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran.
- Center of Medical Biology Research (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Lida Ghaffari
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
| | - Zahra Mardani
- Department of Inorganic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran
| | - Farshad Shiri
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
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Ali MS, Al-Lohedan HA. Experimental and Computational Investigation on the Interaction of Anticancer Drug Gemcitabine with Human Plasma Protein: Effect of Copresence of Ibuprofen on the Binding. Molecules 2022; 27:1635. [PMID: 35268736 PMCID: PMC8912049 DOI: 10.3390/molecules27051635] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/25/2022] [Accepted: 02/26/2022] [Indexed: 12/24/2022] Open
Abstract
The interaction of common anticancer drug gemcitabine with human serum albumin (HSA) has been studied in detail. The effect of an omnipresent nonsteroidal anti-inflammatory drug ibuprofen was also seen on the binding of HSA and gemcitabine. A slight hyperchromic shift in the difference UV-visible absorption spectra of HSA on the addition of gemcitabine gave a primary idea of the possible complex formation between them. The inner filter effect, which happens due to the significant absorbance of the ligand at the excitation and/or emission wavelengths, played an important role in the observed fluorescence quenching of HSA by gemcitabine that can be understood by comparing the observed and corrected fluorescence intensities obtained at λex = 280 nm and 295 nm. Gemcitabine showed weak interaction with HSA, which took place via a dynamic quenching mechanism with 1:1 cooperative binding between them. Secondary structural analysis, based on circular dichroism (CD) spectroscopy, showed that low concentrations of gemcitabine did not affect the native structure of protein; however, higher concentrations affected it slightly with partial unfolding. For understanding the binding site of gemcitabine within HSA, both experimental (using site markers, warfarin and ibuprofen) as well as computational methods were employed, which revealed that the gemcitabine binding site is located between the interface of subdomain IIA and IIB within the close proximity of the warfarin site (drug site 1). The effect of ibuprofen on the binding was further elaborated because of the possibility of its coexistence with gemcitabine in the prescription given to the cancer patients, and it was noticed that, ibuprofen, even present in high amounts, did not affect the binding efficacy of gemcitabine with HSA. DFT analyses of various conformers of gemcitabine obtained from its docking with various structures of HSA (free and bounded with site markers), show that the stability of the gemcitabine molecule increased slightly after binding with ibuprofen-complexed HSA. Both experimental as well as computational results were in good agreement with each other.
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Affiliation(s)
- Mohd Sajid Ali
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
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18
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Action mode of cuminaldehyde against Staphylococcus aureus and its application in sauced beef. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112924] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Cytotoxic and genotoxic evaluation of dipyridamole and its alternative therapeutic potential in cancer therapy: an in vitro and in vivo approach. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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20
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Sochacka J, Pacholczyk M, Jeleń M, Morak-Młodawska B, Pluta K. Interaction of new tri-, tetra-, and pentacyclic azaphenothiazine derivatives with calf thymus DNA: Spectroscopic and molecular docking studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 262:120105. [PMID: 34245970 DOI: 10.1016/j.saa.2021.120105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/03/2021] [Accepted: 06/21/2021] [Indexed: 06/13/2023]
Abstract
Azaphenothiazines (AZA), modified phenothiazine derivatives, have been reported to exhibit a wide spectrum of biological activities, including anticancer activities, but the mechanisms of their interactions with biomolecules are not fully recognized. In this work, the mode of interaction of selected AZA with calf thymus DNA was investigated using UV-Vis absorption, fluorescence spectroscopy (competition experiment with ethidium bromide, quenching of fluorescence) and molecular docking. The investigated AZA represent dipyrido[3,4-b;3'4'-e][1,4]thiazine, quino[3,2-b]benzo[1,4]thiazine and diquino[3,2-b;2',3'-e][1,4]thiazine possessing tricyclic, tetracyclic and pentacyclic ring system with the additional N,N-dimethylaminopropyl group at the nitrogen atom in the 1,4 thiazine ring. The results obtained from spectroscopic studies showed that AZA bind to DNA by insertion of a fragment of the fused rings system between the base pair stack in the double helix of DNA. In addition, the number of rings in the AZA structures seemed to be related to the strength of the interaction, because pentacyclic AZA (binding constant Kb = 6.31 × 106 L/mol) demonstrated 10-fold higher affinity towards DNA than the tetracyclic AZA and about 100-fold higher affinity than that of tricyclic AZA. The molecular docking results showed that the binding mode of AZA to DNA helix was an intercalation mode with the partial insertion of one planar part of the AZA structure (the pyridine or quinoline ring) into the neighboring bases of one of the DNA chains with additional hydrogen bonding with the minor groove through the positively charged N,N-dimethylaminopropyl group. Chemical potential (μ), chemical hardness (ƞ), electronegativity (χ) and the value of electrons transferred from one system to another (ΔN) calculated from the HOMO and LUMO energies by the density functional theory method indicated that AZA acted as the electron acceptors to the DNA bases.
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Affiliation(s)
- Jolanta Sochacka
- Department of General and Inorganic Chemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Marcin Pacholczyk
- Silesian University of Technology, Department of Systems Biology and Engineering, Faculty of Automatic Control, Electronics and Computer Science, Akademicka 16, 44-100 Gliwice, Poland
| | - Małgorzata Jeleń
- Department of Organic Chemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Jagiellońska 4, 41-200 Sosnowiec, Poland
| | - Beata Morak-Młodawska
- Department of Organic Chemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Jagiellońska 4, 41-200 Sosnowiec, Poland
| | - Krystian Pluta
- Department of Organic Chemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Jagiellońska 4, 41-200 Sosnowiec, Poland
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Shen B, Yang H, Chen J, Liu X, Zhou M. Study the interaction between juglone and calf thymus DNA by spectroscopic and molecular docking techniques. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 261:119998. [PMID: 34091358 DOI: 10.1016/j.saa.2021.119998] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 04/25/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
Juglone (Jug) is one of the main active substances of Cortex Juglandis Mandshuricae in a folk anti-cancer prescription. Previously, there were few studies on its interaction with DNA and mechanism of action. The present paper studied, the mechanism of action between Jug and calf thymus DNA (ctDNA) by fluorescence spectroscopy, together with ethidium bromide (EB) fluorescence probe, UV-vis absorption spectroscopy, salt effect and ctDNA melting point (Tm) experiment, resonance scattering spectroscopy and molecular docking under the simulated human physiological conditions. The experimental findings indicated that Jug quiescently quenched the fluorescence of EB-ctDNA system, characteristic absorption peak intensity of ctDNA presented a decolorization effect after the interaction of ctDNA and Jug, the interaction with ctDNA enhanced of Jug resonance scattering peak and generated new resonance scattering peak, the salt exerted less effect on the interaction between Jug and ctDNA molecules, and the interaction with Jug increased the Tm value of ctDNA by 5.0 °C The binding constant (KA) between Jug and ctDNA was 2.12 × 105 L/mol (310 K) and the number of binding sites (n) was about 1. The interaction between Jug and ctDNA was an entropically driven spontaneous and endothermic process. The results of molecular docking further showed that the naphthoquinone plane was embedded in the region between the two TA bases in the ctDNA groove, and the 5'-hydroxyl and 4-naphthoquinone groups extended to the outside of the ctDNA double helix.
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Affiliation(s)
- Bingjun Shen
- Department of Bioengineering, School of Life Science and Technology, Changchun University of Science and Technology, NO.7186 Weixing Road, Changchun City, Jilin Province 085238, PR China.
| | - Huiru Yang
- Department of Bioengineering, School of Life Science and Technology, Changchun University of Science and Technology, NO.7186 Weixing Road, Changchun City, Jilin Province 085238, PR China
| | - Jiaqi Chen
- Department of Bioengineering, School of Life Science and Technology, Changchun University of Science and Technology, NO.7186 Weixing Road, Changchun City, Jilin Province 085238, PR China
| | - Xiaoyun Liu
- Department of Bioengineering, School of Life Science and Technology, Changchun University of Science and Technology, NO.7186 Weixing Road, Changchun City, Jilin Province 085238, PR China
| | - Mingyue Zhou
- Department of Bioengineering, School of Life Science and Technology, Changchun University of Science and Technology, NO.7186 Weixing Road, Changchun City, Jilin Province 085238, PR China
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Hussain I, Fatima S, Siddiqui S, Ahmed S, Tabish M. Exploring the binding mechanism of β-resorcylic acid with calf thymus DNA: Insights from multi-spectroscopic, thermodynamic and bioinformatics approaches. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 260:119952. [PMID: 34052761 DOI: 10.1016/j.saa.2021.119952] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 05/06/2021] [Accepted: 05/09/2021] [Indexed: 06/12/2023]
Abstract
β-resorcylic acid (BR) is a phytochemical which is widely used in the food industry as a flavouring agent and preservative. It has also been found to exhibit antibacterial action against several types of food-borne bacteria. DNA is the main molecular target for many small molecules of therapeutic importance. Hence, the interest is rapidly growing among the researchers to elucidate the interaction between small molecules and DNA. Thus, paving the way to design novel DNA-specific drugs. In this study, an attempt was made to examine the mechanism of binding of BR with calf thymus DNA (ctDNA) with the help of various experiments based on spectroscopy and in silico studies. The spectroscopic studies like UV absorption and fluorescence affirmed the complex formation between BR and ctDNA. The observed binding constant was in the order of 103 M-1 which is indicative of the groove binding mechanism. These findings were further verified by dye-displacement assay, potassium iodide quenching, urea denaturation assay, the study of the effect of ssDNA, circular dichroism and DNA thermal denaturing studies. Different temperature-based fluorescence and isothermal titration calorimetry (ITC) experiments were employed to evaluate thermodynamic parameters. The analysis of thermodynamic parameters supports the enthalpically driven, exothermic and spontaneous nature of the reaction between BR and ctDNA. The forces involved in the binding process were mainly found to be hydrogen bonding, van der Waals and hydrophobic interactions. The results obtained from the molecular docking and molecular dynamics (MD) simulation were consistent with the in vitro experiments, which support the groove binding mode of BR with ctDNA.
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Affiliation(s)
- Irfan Hussain
- Department of Biochemistry, Faculty of Life Sciences, A.M.U, Aligarh, U.P. 202002, India
| | - Sana Fatima
- Department of Biochemistry, Faculty of Life Sciences, A.M.U, Aligarh, U.P. 202002, India
| | - Sharmin Siddiqui
- Department of Biochemistry, Faculty of Life Sciences, A.M.U, Aligarh, U.P. 202002, India
| | - Shahbaz Ahmed
- Department of Biochemistry, Faculty of Life Sciences, A.M.U, Aligarh, U.P. 202002, India
| | - Mohammad Tabish
- Department of Biochemistry, Faculty of Life Sciences, A.M.U, Aligarh, U.P. 202002, India.
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Haroon M, Abdulazeez I, Saleh TA, Al-Saadi AA. Electrochemically modulated SERS detection of procaine using FTO electrodes modified with silver-decorated carbon nanosphere. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138463] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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24
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Gradinaru D, Ungurianu A, Margina D, Moreno-Villanueva M, Bürkle A. Procaine-The Controversial Geroprotector Candidate: New Insights Regarding Its Molecular and Cellular Effects. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:3617042. [PMID: 34373764 PMCID: PMC8349289 DOI: 10.1155/2021/3617042] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/26/2021] [Accepted: 07/12/2021] [Indexed: 11/17/2022]
Abstract
Since its discovery in 1905 and its employment in everyday medical practice as a local anesthetic, to its highly controversial endorsement as an "anti-aging" molecule in the sixties and seventies, procaine is part of the history of medicine and gerontoprophylaxis. Procaine can be considered a "veteran" drug due to its long-time use in clinical practice, but is also a molecule which continues to incite interest, revealing new biological and pharmacological effects within novel experimental approaches. Therefore, this review is aimed at exploring and systematizing recent data on the biochemical, cellular, and molecular mechanisms involved in the antioxidant and potential geroprotective effects of procaine, focusing on the following aspects: (1) the research state-of-the-art, through an objective examination of scientific literature within the last 30 years, describing the positive, as well as the negative reports; (2) the experimental data supporting the beneficial effects of procaine in preventing or alleviating age-related pathology; and (3) the multifactorial pathways procaine impacts oxidative stress, inflammation, atherogenesis, cerebral age-related pathology, DNA damage, and methylation. According to reviewed data, procaine displayed antioxidant and cytoprotective actions in experimental models of myocardial ischemia/reperfusion injury, lipoprotein oxidation, endothelial-dependent vasorelaxation, inflammation, sepsis, intoxication, ionizing irradiation, cancer, and neurodegeneration. This analysis painted a complex pharmacological profile of procaine: a molecule that has not yet fully expressed its therapeutic potential in the treatment and prevention of aging-associated diseases. The numerous recent reports found demonstrate the rising interest in researching the multiple actions of procaine regulating key processes involved in cellular senescence. Its beneficial effects on cell/tissue functions and metabolism could designate procaine as a valuable candidate for the well-established Geroprotectors database.
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Affiliation(s)
- Daniela Gradinaru
- Department of Biochemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, RO-020956 Bucharest, Romania
| | - Anca Ungurianu
- Department of Biochemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, RO-020956 Bucharest, Romania
| | - Denisa Margina
- Department of Biochemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, RO-020956 Bucharest, Romania
| | - Maria Moreno-Villanueva
- Department of Sport Science, Human Performance Research Centre, University of Konstanz, D-78457 Konstanz, Germany
- Department of Biology, Molecular Toxicology Group, University of Konstanz, D-78457 Konstanz, Germany
| | - Alexander Bürkle
- Department of Biology, Molecular Toxicology Group, University of Konstanz, D-78457 Konstanz, Germany
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Javadian S, Najafi K, Sadrpoor SM, Ektefa F, Dalir N, Nikkhah M. Graphene quantum dots based magnetic nanoparticles as a promising delivery system for controlled doxorubicin release. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115746] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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26
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Zhang Y, Li YH, Jiang SB, Wang SL, Qian SS, Qin J, Ma JP, Li J. Syntheses, structures, and bioactivities evaluation of three transition metal complexes with 1,2,4-triazole carboxylic derivative. J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1900832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Yu Zhang
- School of Life Sciences, Shandong University of Technology, Zibo, Shandong, People’s Republic of China
| | - Yong-Hang Li
- School of Life Sciences, Shandong University of Technology, Zibo, Shandong, People’s Republic of China
| | - Shi-Bin Jiang
- School of Life Sciences, Shandong University of Technology, Zibo, Shandong, People’s Republic of China
| | - Shi-Ling Wang
- School of Life Sciences, Shandong University of Technology, Zibo, Shandong, People’s Republic of China
| | - Shao-Song Qian
- School of Life Sciences, Shandong University of Technology, Zibo, Shandong, People’s Republic of China
| | - Jie Qin
- School of Life Sciences, Shandong University of Technology, Zibo, Shandong, People’s Republic of China
| | - Jian-Ping Ma
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, People’s Republic of China
| | - Juan Li
- School of Medical, Pingdingshan University, Pingdingshan, People’s Republic of China
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Shaver A, Kundu N, Young BE, Vieira PA, Sczepanski JT, Arroyo-Currás N. Nuclease Hydrolysis Does Not Drive the Rapid Signaling Decay of DNA Aptamer-Based Electrochemical Sensors in Biological Fluids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:5213-5221. [PMID: 33876937 PMCID: PMC8176561 DOI: 10.1021/acs.langmuir.1c00166] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Electrochemical aptamer-based (E-AB) sensors are a technology capable of real-time monitoring of drug concentrations directly in the body. These sensors achieve their selectivity from surface-attached aptamers, which alter their conformation upon target binding, thereby causing a change in electron transfer kinetics between aptamer-bound redox reporters and the electrode surface. Because, in theory, aptamers can be selected for nearly any target of interest, E-AB sensors have far-reaching potential for diagnostic and biomedical applications. However, a remaining critical weakness in the platform lies in the time-dependent, spontaneous degradation of the bioelectronic interface. This progressive degradation-seen in part as a continuous drop in faradaic current from aptamer-attached redox reporters-limits the in vivo operational life of E-AB sensors to less than 12 h, prohibiting their long-term application for continuous molecular monitoring in humans. In this work, we study the effects of nuclease action on the signaling lifetime of E-AB sensors, to determine whether the progressive signal loss is caused by hydrolysis of DNA aptamers and thus the loss of signaling moieties from the sensor surface. We continuously interrogate sensors deployed in several undiluted biological fluids at 37 °C and inject nuclease to reach physiologically relevant concentrations. By employing both naturally occurring d-DNA and the nuclease-resistant enantiomer l-DNA, we determine that within the current lifespan of state-of-the-art E-AB sensors, nuclease hydrolysis is not the dominant cause of sensor signal loss under the conditions we tested. Instead, signal loss is driven primarily by the loss of monolayer elements-both blocking alkanethiol and aptamer monolayers-from the electrode surface. While use of l-DNA aptamers may extend the E-AB operational life in the long term, the critical issue of passive monolayer loss must be addressed before those effects can be seen.
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Affiliation(s)
- Alexander Shaver
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21202, United States
| | - Nandini Kundu
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| | - Brian E Young
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| | - Philip A Vieira
- Department of Psychology, California State University Dominguez Hills, Carson, California 90747, United States
| | - Jonathan T Sczepanski
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| | - Netzahualcóyotl Arroyo-Currás
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21202, United States
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, Whiting School of Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
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Ali MS, Waseem M, Subbarao N, Al-Lohedan HA. Noncovalent molecular interactions between antineoplastic drug gemcitabine and a carrier protein identified through spectroscopic and in silico methods. Int J Biol Macromol 2021; 182:993-1002. [PMID: 33857514 DOI: 10.1016/j.ijbiomac.2021.04.049] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/31/2021] [Accepted: 04/07/2021] [Indexed: 12/11/2022]
Abstract
Herein we have studied the noncovalent molecular interactions between hen egg white lysozyme (HEWL) and the commonly employed antineoplastic drug gemcitabine through the cumulative implementation of spectroscopic techniques and in silico approaches. The formation of a complex between HEWL and gemcitabine was made evident by the differences between the UV-visible spectra of the protein and protein-gemcitabine complex. Fluorescence quenching of HEWL by gemcitabine was hardly detectable at room temperature, but it became prominent at higher temperatures. Very low values for the bimolecular quenching constant and the non-reciprocal dependence of quenching on temperature indicated that dynamic quenching was taking place. Analysis of experimental data indicated that the interaction was dominated by hydrophobic forces, while the results of a computational investigation suggested the concomitant contribution of hydrogen bonding. Gemcitabine binding induced modifications of the secondary structure of HEWL by slightly increasing the α-helical content of the protein. Finally, gemcitabine binding site was inferred to be located in HEWL big hydrophobic cavity.
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Affiliation(s)
- Mohd Sajid Ali
- Department of Chemistry, King Saud University, P.O. Box-2455, Riyadh 11451, Saudi Arabia.
| | - Mohd Waseem
- School of Computational and Integrative Science, Jawaharlal Nehru University, New Delhi, India
| | - Naidu Subbarao
- School of Computational and Integrative Science, Jawaharlal Nehru University, New Delhi, India
| | - Hamad A Al-Lohedan
- Department of Chemistry, King Saud University, P.O. Box-2455, Riyadh 11451, Saudi Arabia
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Abd-El-Aziz AS, Alsaggaf A, Assirey E, Naqvi A, Okasha RM, Afifi TH, Hagar M. A New Family of Benzo[ h]Chromene Based Azo Dye: Synthesis, In-Silico and DFT Studies with In Vitro Antimicrobial and Antiproliferative Assessment. Int J Mol Sci 2021; 22:2807. [PMID: 33802075 PMCID: PMC7998172 DOI: 10.3390/ijms22062807] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/03/2021] [Accepted: 03/03/2021] [Indexed: 12/27/2022] Open
Abstract
The high biological activity of the chromene compounds coupled with the intriguing optical features of azo chromophores prompted our desire to construct novel derivatives of chromene incorporating azo moieties 4a-l, which have been prepared via a three-component reaction of 1-naphthalenol-4-[(4-ethoxyphenyl) azo], 1, with the benzaldehyde derivatives and malononitrile. The structural identities of the azo-chromene 4a-l were confirmed on the basis of their spectral data and elemental analysis, and a UV-visible study was performed in a Dimethylformamide (DMF) solution for these molecules. Additionally, the antimicrobial activity was investigated against four human pathogens (Gram-positive and Gram-negative bacteria) and four fungi, employing an agar well diffusion method, with their minimum inhibitory concentrations being reported. Molecules 4a, 4g, and 4h were discovered to be more efficacious against Syncephalastrum racemosum (RCMB 05922) in comparison to the reference drugs, while compounds 4b and 4h demonstrated the highest inhibitory activity against Escherichia coli (E. coli) in evaluation against the reference drugs. Moreover, their cytotoxicity was assessed against three different human cell lines, including human colon carcinoma (HCT-116), human hepatocellular carcinoma (HepG-2), and human breast adenocarcinoma (MCF-7) with a selection of molecules illustrating potency against the HCT-116 and MCF-7 cell lines. Furthermore, the molecular modeling results depicted the binding interactions of the synthesized compounds 3b and 3h in the active site of the E. coli DNA gyrase B enzyme with a clear SAR (structure-activity relationship) analysis. Lastly, the density functional theory's (DFTs) theoretical calculations were performed to quantify the energy levels of the Frontier Molecular Orbitals (FMOs) and their energy gaps, dipole moments, and molecular electrostatic potentials. These data were utilized in the chemical descriptor estimations to confirm the biological activity.
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Affiliation(s)
- Alaa S. Abd-El-Aziz
- Department of Chemistry, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada; (A.A.); (E.A.)
| | - Azhaar Alsaggaf
- Department of Chemistry, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada; (A.A.); (E.A.)
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (A.N.); (R.M.O.)
| | - Eman Assirey
- Department of Chemistry, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada; (A.A.); (E.A.)
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (A.N.); (R.M.O.)
| | - Arshi Naqvi
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (A.N.); (R.M.O.)
| | - Rawda M. Okasha
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (A.N.); (R.M.O.)
| | - Tarek H. Afifi
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (A.N.); (R.M.O.)
| | - Mohamed Hagar
- Department of Chemistry, College of Sciences, Taibah University, Yanbu 30799, Saudi Arabia;
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21321, Egypt
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Cuesta SA, Mora JR, Márquez EA. In Silico Screening of the DrugBank Database to Search for Possible Drugs against SARS-CoV-2. Molecules 2021; 26:1100. [PMID: 33669720 PMCID: PMC7923184 DOI: 10.3390/molecules26041100] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/11/2021] [Accepted: 02/16/2021] [Indexed: 12/29/2022] Open
Abstract
Coronavirus desease 2019 (COVID-19) is responsible for more than 1.80 M deaths worldwide. A Quantitative Structure-Activity Relationships (QSAR) model is developed based on experimental pIC50 values reported for a structurally diverse dataset. A robust model with only five descriptors is found, with values of R2 = 0.897, Q2LOO = 0.854, and Q2ext = 0.876 and complying with all the parameters established in the validation Tropsha's test. The analysis of the applicability domain (AD) reveals coverage of about 90% for the external test set. Docking and molecular dynamic analysis are performed on the three most relevant biological targets for SARS-CoV-2: main protease, papain-like protease, and RNA-dependent RNA polymerase. A screening of the DrugBank database is executed, predicting the pIC50 value of 6664 drugs, which are IN the AD of the model (coverage = 79%). Fifty-seven possible potent anti-COVID-19 candidates with pIC50 values > 6.6 are identified, and based on a pharmacophore modelling analysis, four compounds of this set can be suggested as potent candidates to be potential inhibitors of SARS-CoV-2. Finally, the biological activity of the compounds was related to the frontier molecular orbitals shapes.
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Affiliation(s)
- Sebastián A. Cuesta
- Grupo de Química Computacional y Teórica (QCT-USFQ), Departamento de Ingeniería Química, Colegio Politécnico, Universidad San Francisco de Quito, Diego de Robles y Vía Interoceánica, Quito 170901, Ecuador;
| | - José R. Mora
- Grupo de Química Computacional y Teórica (QCT-USFQ), Departamento de Ingeniería Química, Colegio Politécnico, Universidad San Francisco de Quito, Diego de Robles y Vía Interoceánica, Quito 170901, Ecuador;
| | - Edgar A. Márquez
- Grupo de Investigaciones en Química y Biología, Departamento de Química y Biología, Facultad de Ciencias Exactas, Universidad del Norte, Carrera 51B, Km 5, vía Puerto Colombia, Barranquilla 081007, Colombia
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31
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Maurya N, Patel R. Comparative binding analysis of noscapine and piperine with tRNA: A structural perturbation and energetic study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 247:119089. [PMID: 33126137 DOI: 10.1016/j.saa.2020.119089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 10/05/2020] [Accepted: 10/10/2020] [Indexed: 06/11/2023]
Abstract
In this study, we have exploring the binding mechanisms of the two anticancer alkaloid noscapine (NOS) and piperine (PIP) with tRNA using different spectroscopy and computational method. Absorbance and emission spectra revealed that both the drugs show strong binding with tRNA, where NOS intercalate between the base pairs of tRNA and PIP binds in the groove of tRNA. Competitive binding study and steady state anisotropy further confirms the intercalative mode of binding between NOS and tRNA and groove binding in PIP-tRNA complex. The observed thermodynamic parameters suggested that NOS-tRNA complex formation is endothermic and entropy driven, however it was exothermic, and enthalpy driven in case of PIP-tRNA complex. CD and time resolved fluorescence studies show the structural perturbations and conformational change in tRNA structure with NOS as well as PIP. Molecular docking studies are comparable with experimental results and further confirmed that the hydrophobic interactions involved in the NOS-tRNA binding, whereas hydrogen binding and van der Waals interactions play important role in the PIP-tRNA complex formation. This study can be useful to understand the potential binding and resultant tRNA damage by alkaloids and deigned new target specific anticancer drug.
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Affiliation(s)
- Neha Maurya
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India.
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32
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Mohammad M, Al Rasid Gazi H, Pandav K, Pandya P, Islam MM. Evidence for Dual Site Binding of Nile Blue A toward DNA: Spectroscopic, Thermodynamic, and Molecular Modeling Studies. ACS OMEGA 2021; 6:2613-2625. [PMID: 33553879 PMCID: PMC7859944 DOI: 10.1021/acsomega.0c04775] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 01/04/2021] [Indexed: 05/31/2023]
Abstract
Binding of Nile Blue (NB) with calf thymus DNA has been studied using molecular modeling, spectroscopic, and thermodynamic techniques. Our study revealed that NB binds to the DNA helix by two types of modes (groove binding and intercalation) simultaneously. The thermodynamic study showed that the overall binding free energy is a combination of several negative and positive free energy changes. The binding was favored by negative enthalpy and positive entropy changes (due to the release of water from the DNA helix). The docking study validated all experimental evidence and showed that NB binds to a DNA minor groove at low concentrations and switches to intercalation mode at higher concentrations.
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Affiliation(s)
- Mukti Mohammad
- Department
of Chemistry, Aliah University, Action Area IIA/27, New Town, Kolkata, West Bengal 700 160, India
| | - Harun Al Rasid Gazi
- Department
of Chemistry, Aliah University, Action Area IIA/27, New Town, Kolkata, West Bengal 700 160, India
| | - Kumud Pandav
- Department
of Biotechnology, Indian Institute of Technology
Roorkee, Roorkee 247667, India
| | - Prateek Pandya
- Amity
Institute of Forensic Sciences, Amity University, Noida 201313, Uttar Pradesh, India
| | - Md. Maidul Islam
- Department
of Chemistry, Aliah University, Action Area IIA/27, New Town, Kolkata, West Bengal 700 160, India
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33
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Shahabadi N, Farhadi R. Multispectroscopic and molecular docking studies on DNA binding of guaifenesin drug. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2021; 40:317-335. [PMID: 33463400 DOI: 10.1080/15257770.2021.1872793] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The interaction mechanism of guaifenesin drug; (RS)-3-(2-methoxyphenoxy)propane-1,2-diol; and calf thymus DNA was characterized by multiple spectroscopic and molecular docking approaches. The changes in drug electronic absorption with increasing DNA concentration and also the observed significant quenching of guaifenesin emission in the presence of DNA proved the complex formation between guaifenesin and DNA during the interactions. Both the binding constant and thermodynamic parameters for the interaction have been calculated in 283, 298, and 310 K at pH 7.4. The results Δ H 0 = 17.87 kJ/mol and Δ S 0 = 143.31 J/mol.K confirmed the role of hydrophobic force in the guaifenesin-DNA interaction. Circular dichroism study showed that guaifenesin causes decrease in the negative band of CT-DNA and at the same time the positive band increases which indicated the transition of DNA conformation from B to A. KI quenching experiment specifies that guaifenesin binds to DNA via nonintercalative mode. The competitive studies based on known Hoechst 33258 and methylene blue probes proved the groove binding mode in guaifenesin-DNA adduct. Further, full agreement of molecular docking simulation with the experimental results of binding constant and interaction mode, support high accuracy of the results.
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Affiliation(s)
- Nahid Shahabadi
- Faculty of Chemistry, Department of Inorganic Chemistry, Razi University, Kermanshah, Iran.,Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Reza Farhadi
- Faculty of Chemistry, Department of Inorganic Chemistry, Razi University, Kermanshah, Iran
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Al Sheikh Ali A, Khan D, Naqvi A, Al-blewi FF, Rezki N, Aouad MR, Hagar M. Design, Synthesis, Molecular Modeling, Anticancer Studies, and Density Functional Theory Calculations of 4-(1,2,4-Triazol-3-ylsulfanylmethyl)-1,2,3-triazole Derivatives. ACS OMEGA 2021; 6:301-316. [PMID: 33458482 PMCID: PMC7807778 DOI: 10.1021/acsomega.0c04595] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 12/09/2020] [Indexed: 05/07/2023]
Abstract
New conjugates of substituted 1,2,3-triazoles linked to 1,2,4-triazoles were synthesized starting from the appropriate S-propargylated 1,2,4-triazoles 7 and 8. Ligation of 1,2,4-triazoles to the 1,2,3-triazole core was performed through Cu(I)-catalyzed cycloaddition of 1,2,4-triazole-based alkyne side chain 7 and/or 8 with several un/functionalized alkyl- and/or aryl-substituted azides 9-15 to afford the desired 1,4-disubstituted 1,2,3-triazoles 16-27, using both classical and microwave methods. After their spectroscopic characterization (infrared, 1H, 13C nuclear magnetic resonance, and elemental analyses), an anticancer screening was carried out against some cancer cell lines including human colon carcinoma (Caco-2 and HCT116), human cervical carcinoma (HeLa), and human breast adenocarcinoma (MCF-7). The outcomes of this exploration revealed that compounds 17, 22, and 25 had a significant anticancer activity against MCF-7 and Caco-2 cancer cell lines with IC50 values of 0.31 and 4.98 μM, respectively, in relation to the standard reference drug, doxorubicin. Enzyme-docking examination was executed onto cyclin-dependent kinase 2; a promising aim for cancer medication. Synthesized compounds acquiring highest potency showcased superior interactions with the active site residue of the target protein and exhibited minimum binding energy. Finally, the density functional theory (DFT) calculations were carried out to confirm the outcomes of the molecular docking and the experimental findings. The chemical reactivity descriptors such as softness (δ), global hardness (η), electronegativity (χ), and electrophilicity were calculated from the levels of the predicted frontier molecular orbitals and their energy gap. The DFT results and the molecular docking calculation results explained the activity of the most expectedly active compounds 17, 22, and 25.
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Affiliation(s)
- Adeeb Al Sheikh Ali
- Department
of Chemistry, Faculty of Science, Taibah
University, Al-Madinah
Al-Munawarah 30002, Saudi
Arabia
| | - Daoud Khan
- Department
of Chemistry, Faculty of Science, Taibah
University, Al-Madinah
Al-Munawarah 30002, Saudi
Arabia
| | - Arshi Naqvi
- Department
of Chemistry, Faculty of Science, Taibah
University, Al-Madinah
Al-Munawarah 30002, Saudi
Arabia
| | - Fawzia Faleh Al-blewi
- Department
of Chemistry, Faculty of Science, Taibah
University, Al-Madinah
Al-Munawarah 30002, Saudi
Arabia
| | - Nadjet Rezki
- Department
of Chemistry, Faculty of Science, Taibah
University, Al-Madinah
Al-Munawarah 30002, Saudi
Arabia
| | - Mohamed Reda Aouad
- Department
of Chemistry, Faculty of Science, Taibah
University, Al-Madinah
Al-Munawarah 30002, Saudi
Arabia
| | - Mohamed Hagar
- Chemistry
Department, College of Sciences, Yanbu, Taibah University, Yanbu 30799, Saudi Arabia
- Chemistry
Department, Faculty of Science, Alexandria
University, Alexandria 21321, Egypt
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Alves JEF, de Oliveira JF, de Lima Souza TRC, de Moura RO, de Carvalho Júnior LB, Alves de Lima MDC, de Almeida SMV. Novel indole-thiazole and indole-thiazolidinone derivatives as DNA groove binders. Int J Biol Macromol 2021; 170:622-635. [PMID: 33359805 DOI: 10.1016/j.ijbiomac.2020.12.153] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/18/2020] [Accepted: 12/19/2020] [Indexed: 10/22/2022]
Abstract
In this study, we report the synthesis of eight novel indole-thiazole and indole-thiazolidinone derivatives, as well as their ability to interact with DNA, analysed through the UV-vis absorption, fluorescence, circular dichroism (CD), viscosity techniques and molecular docking. The ctDNA interaction analysis demonstrated different spectroscopic effects and the affinity constants (Kb) calculated by the UV-vis absorption method were between 2.08 × 105 and 6.99 × 106 M-1, whereas in the fluorescence suppression constants (Ksv) ranged between 0.38 and 0.77 × 104 M-1 and 0.60-7.59 × 104 M-1 using Ethidium Bromide (EB) and 4',6-Diamidino-2-phenylindole (DAPI) as fluorescent probes, respectively. Most derivatives did not alter significantly the secondary structure of the ctDNA according to the CD results. None of the compounds was able to change the relative viscosity of the ctDNA. These results prove that compounds interact with ctDNA via groove binding, which was confirmed by A-T rich oligonucleotide sequence assay with compound JF-252, suggesting the importance of both the phenyl ring coupled to C-4 thiazole ring and the bromo-unsubstituted indole nucleus.
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Affiliation(s)
| | | | | | - Ricardo Olímpio de Moura
- Departamento de Ciências Farmacêuticas, Centro de Ciências Biológicas e da Saúde, Universidade Estadual da Paraíba e Bodocongo, Campina Grande, PB 58429-500, Brazil
| | | | - Maria do Carmo Alves de Lima
- Laboratório de Química e Inovação Terapêutica (LQIT) - Departamento de Antibióticos, Universidade Federal de Pernambuco, 50670-901, Brazil
| | - Sinara Mônica Vitalino de Almeida
- Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, 50670-901, Brazil; Laboratório de Biologia Molecular, Universidade de Pernambuco (UPE), Multicampi Garanhuns, Garanhuns, PE 55290-000, Brazil.
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36
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Aderibigbe BA, Naki T, Steenkamp V, Nwamadi M, Ray SS, Balogun MO, Matshe WMR. Physicochemical and in vitro cytotoxicity evaluation of polymeric drugs for combination cancer therapy. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2019.1667802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | - Tobeka Naki
- Department of Chemistry, University of Fort Hare, Alice, South Africa
| | - Vanessa Steenkamp
- Department of Pharmacology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Mutshinyalo Nwamadi
- Department of Chemistry, Auckland Park Campus, University of Johannesburg, Johannesburg, South Africa
| | - Suprakas Sinha Ray
- DST/CSIR National Centre for Nanostructured Materials, Council for Scientific and Industrial Research, Pretoria, South Africa
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37
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Li N, Hu X, Pan J, Zhang Y, Gong D, Zhang G. Insights into the mechanism of groove binding between 4-octylphenol and calf thymus DNA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 238:118454. [PMID: 32413714 DOI: 10.1016/j.saa.2020.118454] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/04/2020] [Accepted: 05/05/2020] [Indexed: 06/11/2023]
Abstract
4-Octylphenol is an endocrine disruptor, belonging to environmental estrogens. It can be enriched in the human body through the food chain and may harm human health. Herein, we used a variety of spectroscopic techniques, molecular docking, and gel electrophoresis to study the interaction of 4-octylphenol and ctDNA. It was found that the mechanism of ctDNA quenching the endogenous fluorescence of 4-octylphenol was static quenching, and formed a complex. The negative enthalpy change (ΔH°), entropy change (ΔS°) and Gibbs free energy (ΔG°) have shown that 4-octylphenol and ctDNA spontaneously bind together under the action of hydrogen bonds and van der Waal's force. Viscosity, melting temperature and iodide quenching experiments showed that 4-octylphenol acted on the groove of ctDNA. Insignificant change in circular dichromism spectra further confirmed this binding mode. The binding sites and groups for 4-octylphenol and ctDNA interaction were identified by molecular docking. Gel electrophoresis found that 4-octylphenol at high concentrations caused DNA cleavage. Above findings may lay a theoretical foundation for understanding the toxicity mechanism of 4-octylphenol.
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Affiliation(s)
- Na Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Junhui Pan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Ying Zhang
- Division of Accounting, Nanchang University, Nanchang 330047, China
| | - Deming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Department of Biomedicine, New Zealand Institute of Natural Medicine Research, Auckland 2104, New Zealand
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
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Modelling the Anti-Methicillin-Resistant Staphylococcus Aureus (MRSA) Activity of Cannabinoids: A QSAR and Docking Study. CRYSTALS 2020. [DOI: 10.3390/cryst10080692] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Twenty-four cannabinoids active against MRSA SA1199B and XU212 were optimized at WB97XD/6-31G(d,p), and several molecular descriptors were obtained. Using a multiple linear regression method, several mathematical models with statistical significance were obtained. The robustness of the models was validated, employing the leave-one-out cross-validation and Y-scrambling methods. The entire data set was docked against penicillin-binding protein, iso-tyrosyl tRNA synthetase, and DNA gyrase. The most active cannabinoids had high affinity to penicillin-binding protein (PBP), whereas the least active compounds had low affinities for all of the targets. Among the cannabinoid compounds, Cannabinoid 2 was highlighted due to its suitable combination of both antimicrobial activity and higher scoring values against the selected target; therefore, its docking performance was compared to that of oxacillin, a commercial PBP inhibitor. The 2D figures reveal that both compounds hit the protein in the active site with a similar type of molecular interaction, where the hydroxyl groups in the aromatic ring of cannabinoids play a pivotal role in the biological activity. These results provide some evidence that the anti-Staphylococcus aureus activity of these cannabinoids may be related to the inhibition of the PBP protein; besides, the robustness of the models along with the docking and Quantitative Structure–Activity Relationship (QSAR) results allow the proposal of three new compounds; the predicted activity combined with the scoring values against PBP should encourage future synthesis and experimental testing.
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39
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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.
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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
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40
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Maurya N, Imtiyaz K, Alam Rizvi MM, Khedher KM, Singh P, Patel R. Comparative in vitro cytotoxicity and binding investigation of artemisinin and its biogenetic precursors with ctDNA. RSC Adv 2020; 10:24203-24214. [PMID: 35516214 PMCID: PMC9055135 DOI: 10.1039/d0ra02042g] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 05/22/2020] [Indexed: 12/16/2022] Open
Abstract
Artemisinin (ART) and its biogenetic precursors artemisinic acid (AA) and dihydroartemisinic acid (DHAA) are important traditional medicinal herb compounds with tumor growth inhibition properties. Herein, we have studied the cytotoxicity of ART, AA, and DHAA on different cancer cell lines (H1299, A431, and HCT 116) and investigated in detail their binding mechanisms with ctDNA by using spectroscopy, cyclic voltammetry, and computational methods. The UV absorbance, cyclic voltammetry, DNA helix melting, competition binding, and circular dichroism studies suggested that the complex formation of ART-ctDNA and AA-ctDNA occurs through groove binding. However, in the case of DHAA-ctDNA interaction, electrostatic interaction plays a major role. The thermodynamic parameters, viz., ΔG 0, ΔH 0, and ΔS 0 were calculated, which showed the involvement of hydrogen bonds and van der Waals interactions for drug-ctDNA interaction. FTIR and molecular docking results suggested that ART, AA, and DHAA were bound to the A-T rich region in the minor groove of ctDNA.
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Affiliation(s)
- Neha Maurya
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia New Delhi-110025 India +91 11 26983409 +91 8860634100
| | - Khalid Imtiyaz
- Department of Biosciences, Jamia Millia Islamia New Delhi-110025 India
| | | | - Khaled Mohamed Khedher
- Department of Civil Engineering, College of Engineering, King Khalid University Abha 6421 Saudi Arabia
- Department of Civil Engineering, ISET, DGET Nabeul Tunisia
| | - Prashant Singh
- Department of Chemistry, ARSD College, University of Delhi New Delhi-110021 India
| | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia New Delhi-110025 India +91 11 26983409 +91 8860634100
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41
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Ribeiro AG, Almeida SMVD, de Oliveira JF, Souza TRCDL, Santos KLD, Albuquerque APDB, Nogueira MCDBL, Carvalho Junior LBD, Moura ROD, da Silva AC, Pereira VRA, Castro MCABD, Lima MDCAD. Novel 4-quinoline-thiosemicarbazone derivatives: Synthesis, antiproliferative activity, in vitro and in silico biomacromolecule interaction studies and topoisomerase inhibition. Eur J Med Chem 2019; 182:111592. [DOI: 10.1016/j.ejmech.2019.111592] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/07/2019] [Accepted: 08/05/2019] [Indexed: 12/16/2022]
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42
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Abdulazeez I, Popoola SA, Saleh TA, Al-Saadi AA. Spectroscopic, DFT and trace detection study of procaine using surface-enhanced Raman scattering technique. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.06.067] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Shahabadi N, Shiri F, Hadidi S. Studies on the interaction of antibiotic drug rifampin with DNA and influence of bivalent metal ions on binding affinity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 219:195-201. [PMID: 31035130 DOI: 10.1016/j.saa.2019.04.059] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 04/21/2019] [Accepted: 04/21/2019] [Indexed: 06/09/2023]
Abstract
In this paper, the interaction between rifampin, a known antibiotic used against tuberculosis, and DNA helix is investigated by applying multiple biophysical and molecular modelling approaches in an aqueous solution at pH 7.4 and 5. It was proved that the fluorescence quenching of labeled probe DNA by rifampin is a result of the complex formation of rifampin in groove of DNA. Binding parameters were calculated using the logarithmic Hill equation to provide a quantitative term of the binding affinity between rifampin and DNA sites. The resulting ΔH0 = -122.76 ± 0.07 kJ/mol and ΔS0 = -308.19 ± 238.78 J/mol K confirms the role of the Van der Waals' forces and hydrogen bonding in the rifampin-DNA complexation. Furthermore, the influence of bivalent metal ions on the binding affinity was resulted in order of Cu(II) > Ca(II) > Co(II) > Zn(II).
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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.
| | - Farshad Shiri
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran; Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Saba Hadidi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran; Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
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Hassan AA, Aly AA, Mohamed NK, El Shaieb KM, Makhlouf MM, Abdelhafez ESMN, Bräse S, Nieger M, Dalby KN, Kaoud TS. Design, synthesis, and DNA interaction studies of furo-imidazo[3.3.3]propellane derivatives: Potential anticancer agents. Bioorg Chem 2019; 85:585-599. [PMID: 30878891 PMCID: PMC6543821 DOI: 10.1016/j.bioorg.2019.02.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 02/10/2019] [Accepted: 02/11/2019] [Indexed: 11/26/2022]
Abstract
A large number of natural products containing the propellane scaffold have been reported to exhibit cytotoxicity against several cancers; however, their mechanism of action is still unknown. Anticancer drugs targeting DNA are mainly composed of small planar molecule/s that can interact with the DNA helix, causing DNA malfunction and cell death. The aim of this study was to design and synthesize propellane derivatives that can act as DNA intercalators and/or groove binders. The unique structure of the propellane derivatives and their ability to display planar ligands with numerous possible geometries, renders them potential starting points to design new drugs targeting DNA in cancer cells. New substituted furo-imidazo[3.3.3]propellanes were synthesized via the reaction of substituted alkenylidene-hydrazinecarbothioamides with 2-(1,3-dioxo-2,3-dihydro-1H-2-ylidene)propanedinitrile in tetrahydrofuran at room temperature. The structures of the products were confirmed by a combination of elemental analysis, NMR, ESI-MS, IR and single crystal X-ray analysis. Interestingly, 5c, 5d and 5f showed an ability to interact with Calf Thymus DNA (CT-DNA). Their DNA-binding mode was investigated using a combination of absorption spectroscopy, DNA melting, viscosity, CD spectroscopy measurements, as well as competitive binding studies with several dyes. Their cytotoxicity was evaluated against the NCI-60 panel of cancer cell lines. 5c, 5d and 5f exhibited similar anti-proliferative activity against the A549 non-small cell lung cancer (NSCLC) cell line. Further mechanistic studies revealed their ability to induce DNA damage in the A549 cell line, as well as apoptosis, evidenced by elevated Annexin V expression, enhanced caspase 3/7 activation and PARP cleavage. In this study, we present the potential for designing novel propellanes to provoke cytotoxic activity, likely through DNA binding-induced DNA damage and apoptosis.
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Affiliation(s)
- Alaa A Hassan
- Chemistry Department, Faculty of Science, Minia University, El-Minia 61519, Egypt.
| | - Ashraf A Aly
- Chemistry Department, Faculty of Science, Minia University, El-Minia 61519, Egypt
| | - Nasr K Mohamed
- Chemistry Department, Faculty of Science, Minia University, El-Minia 61519, Egypt
| | - Kamal M El Shaieb
- Chemistry Department, Faculty of Science, Minia University, El-Minia 61519, Egypt
| | - Maysa M Makhlouf
- Chemistry Department, Faculty of Science, Minia University, El-Minia 61519, Egypt
| | | | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, Karlsruhe 76131, Germany; Institute of Toxicology and Genetics, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Martin Nieger
- Department of Chemistry, University of Helsinki, P.O. Box 55, A.I. Virtasen aukio I, Helsinki 00014, Finland
| | - Kevin N Dalby
- Division of Chemical Biology and Medicinal Chemistry, The University of Texas at Austin, Austin, TX 78712, USA
| | - Tamer S Kaoud
- Department of Medicinal Chemistry, Faculty of Pharmacy, Minia University, El-Minia 61519, Egypt; Division of Chemical Biology and Medicinal Chemistry, The University of Texas at Austin, Austin, TX 78712, USA.
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Pashah Z, Hekmat A, Hesami Tackallou S. Structural effects of Diamond nanoparticles and Paclitaxel combination on calf thymus DNA. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2019; 38:249-278. [PMID: 30922151 DOI: 10.1080/15257770.2018.1515440] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The combination effects of nanodiamonds (NDs) and Paclitaxel (PTX) on the DNA structure were examined. The UV-Visible, steady-state and time-resolved fluorescence spectroscopy, CD, viscosity and zeta potential results showed that PTX + NDs could form a complex via groove binding mechanism. The values of binding constants, ΔG° and ΔH° and ΔS° values showed that PTX + NDs interact strongly with DNA and the hydrophobic force plays main role in this interaction. The ΔG25ο and Tm study indicated the instability of DNA in presence of PTX + NDs. This study demonstrated that NDs could enhance the effect of PTX on DNA structure as well as its affinity and binding to DNA.
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Affiliation(s)
- Zahra Pashah
- a Department of Biology , Science and Research Branch, Islamic Azad University , Tehran , Iran
| | - Azadeh Hekmat
- a Department of Biology , Science and Research Branch, Islamic Azad University , Tehran , Iran
| | - Saeed Hesami Tackallou
- b Department of Biology , Central Tehran Branch, Islamic Azad University , Tehran , Iran
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Experimental and computational investigation on the molecular interactions of safranal with bovine serum albumin: Binding and anti-amyloidogenic efficacy of ligand. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ali MS, Tabassum S, Al-Lohedan HA, Farah MA, Al-Anazi KM, Usman M. Fluorescent delivery vehicle containing cobalt oxide–umbelliferone nanoconjugate: DNA/protein interaction studies and anticancer activity on MF7 cancer cell line. RSC Adv 2019; 9:26503-26518. [PMID: 35531044 PMCID: PMC9070427 DOI: 10.1039/c9ra02412c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 06/27/2019] [Indexed: 11/21/2022] Open
Abstract
Fluorescent labeling is limited to certain molecules and alters biomolecule functionality. A new class of nanomaterial with anticancer activity and fluorescence properties has been designed and prepared. This nanotherapeutic conjugate of natural molecules has a selective binding site in cancer cell lines. Natural drug umbelliferone was taken with cobalt metal ions in a one pot assembly in the presence of tannic acid which yields new fluorescent nanoparticles of umbelliferone cobalt oxide nanoconjugate. Umbelliferone has high fluorescent properties and also has coordination ability to bind with central metal ions. The nanoconjugate was synthesized and characterized by using TEM, EDX analysis, SEM, XRD, and FTIR spectroscopy. TEM shows that the average size of the particles formed with umbelliferone is ∼20 nm. The solubility of the drug nanoparticles in water showed compatibility with cancer cells and provided a favorable environment to investigate the mechanism of action on the MCF-7 cell line. The nanoconjugate is microcrystalline in nature and gives a clear suspension in water. The nanocobalt conjugate was loaded on TiO2 nanoparticles by ultrasonication, and the solution was digested overnight. The conjugate of the drug with a TiO2 drug carrier was stable in solution and maintained the nanostructure ∼34.6 nm. A comparative study with nano-vehicle TiO2 and the nanoconjugate was performed. TiO2 was used to compare the anti-cancer activity of the nanoconjugate at low dose in vitro. It was observed that the nanoconjugate with TiO2 is capable of reaching the specific target like the TiO2 nanoparticle and enhance the chemotherapeutic impact. Hence, the nanoconjugate can also be used like nano-TiO2, as the drug and carrier. The ct-DNA and HSA protein binding studies were done and validated by docking studies. Model of drug-nanoconjugate with DNA and HSA.![]()
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Affiliation(s)
- Mohd Sajid Ali
- Surfactant Research Chair
- Department of Chemistry
- College of Sciences
- King Saud University
- Riyadh 11451
| | - Sartaj Tabassum
- Surfactant Research Chair
- Department of Chemistry
- College of Sciences
- King Saud University
- Riyadh 11451
| | - Hamad A. Al-Lohedan
- Surfactant Research Chair
- Department of Chemistry
- College of Sciences
- King Saud University
- Riyadh 11451
| | - Mohammad Abul Farah
- Department of Zoology
- College of Sciences
- King Saud University
- Riyadh 11451
- Kingdom of Saudi Arabia
| | - Khalid Mashay Al-Anazi
- Department of Zoology
- College of Sciences
- King Saud University
- Riyadh 11451
- Kingdom of Saudi Arabia
| | - Mohammad Usman
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-2002
- India
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Ali MS, Al-Lohedan HA. Spectroscopic and computational evaluation on the binding of safranal with human serum albumin: Role of inner filter effect in fluorescence spectral correction. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 203:434-442. [PMID: 29894957 DOI: 10.1016/j.saa.2018.05.102] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 05/21/2018] [Accepted: 05/27/2018] [Indexed: 05/21/2023]
Abstract
For determining the pharmacological properties of medicinal compounds, their binding with serum albumins is very crucial. Herein, we have selected safranal, a major constituent of saffron which is known to retain a number of medicinal properties including antioxidant, anti-inflammatory, tumoricidal, anti-genotoxic, and anti-aging activities; and studied its mechanism of binding with human serum albumin at physiological pH using various spectroscopic methods along with computational approach using molecular docking. A change in the difference UV-visible spectrum of HSA in presence of safranal was found which is due to the complex formation. Owing to the strong absorption of safranal at the fluorescence excitation wavelength of HSA (295 nm) and in the whole range of emission, the fluorescence spectra of HSA in presence of safranal were corrected for the inner filter effect. After the correction the spectra were free from the safranal absorption effect and it was found that addition of safranal causes the quenching of HSA fluorescence and a blue shift of the emission maximum which are attributed to the binding of safranal to the protein and dominance of hydrophobic forces in the interaction, respectively. It was evident from the comparison of observed and corrected fluorescence spectra that before correction there was a large red shift while after correction appearance of blue shift was occurred. The involvement of hydrophobic interaction was also found from the extrinsic fluorescence measurements using ANS dye as well as from the analyzed thermodynamic parameters. Safranal was found to partially induce the secondary structure of HSA as construed from the CD measurements. The size of the HSA was also decreased as evident from the DLS and RLS measurements. Both site marker studies and molecular docking simulations suggested that the primary binding site of the safranal in the HSA is Sudlow's site 1 located in the subdomain IIA. Hydrophobic interaction provides the major contribution to the binding forces along with a little amount of hydrogen bonding.
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Affiliation(s)
- Mohd Sajid Ali
- Surfactant Research Chair, Department of Chemistry, College of Science, King Saud University, P.O. Box-2455, Riyadh 11451, Saudi Arabia.
| | - Hamad A Al-Lohedan
- Surfactant Research Chair, Department of Chemistry, College of Science, King Saud University, P.O. Box-2455, Riyadh 11451, Saudi Arabia
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