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Kumar P, Singh P, Saren S, Sayala J, Sivakumar S, Patra AK. Quaternary Ru(II) complexes of terpyridines, saccharin and 1,2-azoles: effect of substituents on molecular structure, speciation, photoactivity, and photocytotoxicity. Dalton Trans 2022; 51:18416-18437. [PMID: 36416455 DOI: 10.1039/d2dt02203f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Six photoactive ruthenium quaternary complexes (a four-component system consisting of three different N-donor ligands and Ru(II)): trans-[Ru(R-tpy)(pyz/ind)(sac)2] (1-6) containing substituted terpyridine (R-tpy), saccharin (sac), and monodentate N-donor heterocycles were designed. Here, R-tpy = 4'-(2-furyl (1, 2); thienyl (3, 4); pyridyl (5, 6))-2,2':6',2'' terpyridines, pyz = 1H-pyrazole for 1, 3 and 5 and ind = 1H-indazole for 2, 4 and 6. The azoles are present in a large number of FDA-approved clinical drugs and bioactive molecules. The saccharin acting as a carbonic anhydrase inhibitor (CA-IX) could potentially target aggressive hypoxic tumors that overexpress CA-IX. Such multi-functional ligands bound to a Ru(II)-photocage provide ample scope to tune the electronic structures, photochemistry, and synergistic effect of the photolabile ligands in photoactivated chemotherapy (PACT). The complexes were characterized using various spectroscopic studies, and the molecular structures were determined from X-ray crystallography. They exhibit a distorted octahedral {RuN6} geometry with equatorial sites coordinated to the tridentate N3-donor R-tpy and N-donor pyz/ind, while two transoidal axial sites bound to the N-donor saccharinate (sac) ligands. The solvolysis kinetics showed these complexes undergo facile ligand-exchange reactions in equilibrium with varying rates reflecting the possible electronic effect of the R-groups in R-tpy. The photoreactivity of the complexes in green (λex = 530 nm) LED light indicates that the complexes undergo photodissociation of the monodentate N-donors (i.e., sac/pyz/ind) and showed an efficient generation of singlet oxygen (Φ1O2 = 0.29-0.47), signifying the potential of these complexes in PACT and/or PDT. All the complexes show good binding affinity with CT-DNA with possible intercalation from extended planar polypyridyl ligands with duplex DNA and BSA. The synchronous fluorescence study with BSA suggested preferential interaction at the tryptophan residue in the protein microenvironment. The confocal microscopy studies showed adequate permeability and localization in the cytosol and nucleus of cervical cancer (HeLa) and breast cancer (MCF7) cells. The dose-dependent cytotoxicity of the complexes for both HeLa and MCF7 cells increases upon low-energy (365 nm) photoirradiation. The mechanistic studies revealed that the complexes induce apoptosis and generate reactive oxygen species (ROS) upon green light (λex = 530 nm) irradiation. Overall, these quaternary Ru(II) complexes equipped with three different types of ligands with distinct roles could pave the way for designing multi-targeted chemotherapeutic metallodrugs with synergistic roles for each bioactive ligand.
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Affiliation(s)
- Priyaranjan Kumar
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India.
| | - Prerana Singh
- Department of Chemical Engineering, DST Thematic Unit of Excellence on Soft Nanofabrication, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India.,Department of Biological Sciences & Bioengineering, Indian Institute of Technology Kanpur, Uttar Pradesh 208016, India
| | - Sanjoy Saren
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India.
| | - Juhi Sayala
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India.
| | - Sri Sivakumar
- Department of Chemical Engineering, DST Thematic Unit of Excellence on Soft Nanofabrication, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Ashis K Patra
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India.
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52
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Albumin-binding properties of an aromatic N-acylhydrazone. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.121180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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53
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Triptolide and methotrexate binding competitively to bovine serum albumin: A study of spectroscopic experiments, molecular docking, and molecular dynamic simulation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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54
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Fatma I, Sharma V, Ahmad Malik N, Assad H, Cantero-López P, Sánchez J, López-Rendón R, Yañez O, Chand Thakur R, Kumar A. Influence of HSA on micellization of NLSS and BC: An experimental-theoretical approach of its binding characteristics. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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55
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Study of reactive dye/serum albumin interactions: thermodynamic parameters, protein alterations and computational analysis. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02561-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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56
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Sreedevi Sangeetha M, Merin Vinod S, Anju K, Tamizhdurai P, Raghupathi C, Kumaran R. Photophysical and molecular docking approach on the interaction of water-soluble simple keto sugar with Acridinedione dyes. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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57
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Dezhampanah H, Moghaddam Pour AM. Multi technique investigation on interaction between 5-(2-thiazolylazo)-2,4,6-triaminopyrimidine and HSA and BSA. J Biomol Struct Dyn 2022; 40:8143-8154. [PMID: 33797349 DOI: 10.1080/07391102.2021.1906751] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
In research laboratories and in various industries, azo compounds are among the most effective and commonly used organic dyes. The association between human (HSA) and bovine (BSA) serum albumins with 5-(2-thiazolylazo)-2,4,6-triaminopyrimidine (TTP) was investigated in this research using spectroscopy methods and molecular modeling study. The fluorescence quenching results showed that the quenching mechanisms were static and dynamic processes for HSA and BSA, respectively. From the thermodynamic observations, it is clear that the binding process is a spontaneous molecular interaction, in which van der Waals and hydrogen bonding interactions for HSA and hydrophobic interaction for BSA play the major roles. According to Förster energy transfer, non-radiative energy transferred from HSA and BSA to TTP, is provided by close distance (r0) between TTP and Trp residues of HSA and BSA. The synchronous fluorescence spectroscopy, FT-IR findings and UV-Vis absorption data confirm that TTP can induce conformational and micro environmental changes in both the proteins. Furthermore, docking results predicted the probable binding site of TTP in subdomain IIA of HSA and BSA molecules where Trp residues are located. Types of amino acid residues surrounding the TTP molecule supported that van der Waals forces, hydrophobic forces and electrostatic forces play important roles in stabilization of drug-protein complexes formed.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Hamid Dezhampanah
- Department of Chemistry, Faculty of Science, University of Guilan, Rasht, Iran
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58
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Huang ZY, Li XY, Hu LY, Bai AM, Hu YJ. Comparative study of two antipsychotic drugs binding to human serum albumin: By multispectroscopic and molecular docking methods. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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59
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Wang H, Ke L, Zhou J, Li G, Xu T, Rao P. Multi-spectroscopic, molecular docking and molecular dynamic simulation evaluation of hydroxychloroquine sulfate interaction with caseins and whey proteins. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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60
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Insight into the binding of alpha-linolenic acid (ALA) on Human Serum Albumin using spectroscopic and molecular dynamics (MD) studies. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.09.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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61
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Li W, Zhang X, Tan S, Li X, Gu M, Tang M, Zhao X, Wu Y. Zein enhanced the digestive stability of five citrus flavonoids via different binding interaction. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:4780-4790. [PMID: 35218206 DOI: 10.1002/jsfa.11838] [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: 10/17/2021] [Revised: 01/03/2022] [Accepted: 02/26/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Zein is commonly used to construct food flavonoid delivery systems. This study investigated the effect and mechanism of zein on the digestive stability of five citrus flavonoids, namely hesperetin (HET), hesperidin (HED), neohesperidin (NHD), naringenin (NEN), and naringin (NIN). RESULTS Zein enhanced the digestive stability of the five citrus flavonoids, especially that of HET and NEN, during digestion in the stomach and small intestine. Fluorescence spectroscopy results suggested that citrus flavonoids spontaneously quenched the endogenous fluorescence of zein in static quenching mode. The binding of HET, HED and NHD to zein was driven respectively by electrostatic, hydrophobic and electrostatic interaction. However, Van der Waals' force and hydrogen (H)-bond interaction represented the primary driving force for binding NEN, and NIN to zein to form complexes. The binding of the five citrus flavonoids to zein also caused a diverse bathochromic shift in ultraviolet absorbance. Analysis using Fourier-transform infrared and Raman spectroscopy revealed that the binding behavior of the five citrus flavonoids had different effects on changes in the secondary structures, disulfide bonds, and tyrosine exposure of zein. The results were also partially verified by molecular dynamic simulation. CONCLUSIONS Zein enhanced the digestive stability of the five citrus flavonoids via different binding interactions that was due to the difference in molecular structure of citrus flavonoids. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Wenfeng Li
- School of Life Science and Biotechnology, Yangtze Normal University, Chongqing, China
| | - Xiaohua Zhang
- School of Life Science and Biotechnology, Yangtze Normal University, Chongqing, China
| | - Si Tan
- School of Life Science and Biotechnology, Yangtze Normal University, Chongqing, China
| | - Xueping Li
- School of Life Science and Biotechnology, Yangtze Normal University, Chongqing, China
| | - Mengyuan Gu
- School of Life Science and Biotechnology, Yangtze Normal University, Chongqing, China
| | - Mengqi Tang
- School of Life Science and Biotechnology, Yangtze Normal University, Chongqing, China
| | - Xin Zhao
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China
| | - Yingmei Wu
- The Chongqing Engineering Laboratory for Green Cultivation and Deep Processing of the Three Gorges Reservoir Area's Medicinal Herbs, College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing, China
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62
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Interactions between stipuol enantiomers and human serum albumin. Food Chem 2022; 385:132686. [PMID: 35299022 DOI: 10.1016/j.foodchem.2022.132686] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 11/20/2022]
Abstract
Natural polyacetylenes occur in food and herbal plants, have a wide range of bioactivities, and are recognized as important nutraceuticals. Stipuol is a natural polyacetylene present in the edible plant Panax notoginseng. The present study was aimed to study interactions of rac-stipuol and its enantiomers with human serum albumin (HSA) using multi-spectroscopic, molecular modeling and microscale thermophoresis. Steady-state and time-resolved fluorescence spectra manifest that the fluorescence quenching mechanism is mainly static in type. The bindings of (S)-stipuol, (R)-stipuol, rac-stipuol lead to some microenvironmental and slight conformational changes of HSA. Competitive ligand displacement experiments and molecular modeling studies revealed that stipuol enantiomers bind to HSA at subdomain III (site IIA). The calculated values of Ka and Kd showed that (R)-stipuol had a stronger binding affinity than (S)-stipuol. The results are informative for use of stipuol as a nutraceutical to improve human health.
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63
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Gan N, Peng X, Wu D, Xiang H, Sun Q, Yi B, Suo Z, Zhang S, Wang X, Li H. Effects of microsize on the biocompatibility of UiO67 from protein-adsorption behavior, hemocompatibility, and histological toxicity. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:129042. [PMID: 35650723 DOI: 10.1016/j.jhazmat.2022.129042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/16/2022] [Accepted: 04/27/2022] [Indexed: 06/15/2023]
Abstract
The biocompatibility of metal-organic frameworks (MOFs) is necessary to humans but is far from being sufficiently addressed. This study focused on the effects of microsize on the biocompatibility of MOFs by selecting UiO67 with micron and submicron size as the MOFs models. Under the dose metric of surface area, the binding constant between UiO67 and human serum albumin (HSA) gradually increased with increased UiO67 size. Submicron UiO67 induced stronger conformational transformation and more greatly affected the protein surface hydrophobicity than micron UiO67. Micron UiO67 also inhibited the esterase-like activity of HSA through competitive inhibition mechanism, whereas submicron UiO67 inhibited it through noncompetitive inhibition mechanism. The size of UiO67 had little effect on hemocompatibility. A smaller size of UiO67, corresponded with a higher IC50 value for 293 T and LO2 cells, and the adsorption of HSA can effectively improve cytotoxicity. In vivo toxicity evaluations revealed that all UiO67 did not cause obvious distortion of organs, and they were metabolized primarily in the kidney. These results provided useful information about the toxicity of MOFs and experimental references for the development of MOFs-based engineering materials.
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Affiliation(s)
- Na Gan
- School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China
| | - Xu Peng
- Laboratory Animal Center, Sichuan University, Chengdu 610065, China
| | - Di Wu
- Meat Processing Key Laboratory of Sichuan Province, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Hongzhao Xiang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China
| | - Qiaomei Sun
- School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China.
| | - Bin Yi
- R&D Center of China Tobacco Yunnan Industrial Co., Ltd., No. 367, Hongjin Road, Kunming 650231, China
| | - Zili Suo
- School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China
| | - Shuangshuang Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China
| | - Xinlong Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China.
| | - Hui Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China
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64
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Lyndem S, Gazi R, Belwal VK, Bhatta A, Jana M, Roy AS. Binding of bioactive esculin and esculetin with hen egg white lysozyme: Spectroscopic and computational methods to comprehensively elucidate the binding affinities, interacting forces, and conformational alterations at molecular level. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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65
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Zhang Z, Zhu Q, Liang W, Han Z, Huang C, Liu A, Lu Y, Ma J, Yang M. Investigation on detoxication effects of 2-hydroxypropyl-β-cyclodextrin over two halogenated aromatic DBPs 2,4,6-trichlorophenol and 2,4,6-tribromophenol binding with human serum albumin. Food Chem 2022; 382:132349. [PMID: 35158266 DOI: 10.1016/j.foodchem.2022.132349] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 01/30/2022] [Accepted: 02/01/2022] [Indexed: 11/30/2022]
Abstract
The health effects of disinfection byproducts (DBPs) in drinking water drew great attention recently. Herein, by using in vitro (fluorescence quenching, UV absorbance, circular dichroism) and in silico (molecular docking) method, binding interactions of two halophenolic DBPs (2,4,6-trichlorophenol [TCP] and 2,4,6-tribromophenol [TBP]) with human serum albumin (HSA) and the influence of hydroxypropyl-beta-cyclodextrin (HPCD) on the interactions were investigated. TCP/TBP could form complexes with HSA mainly by hydrogen bonding, while changing its secondary structure, among which TBP showed more influential effect. Interestingly, the binding constants for halophenol-HSA complexes decreased obviously with the involvement of HPCD. Molecular docking results revealed that HPCD could include TCP/TBP into its cavity and change their original binding sites from subdomain IB to IIA, resulting in a more stable binding system. These findings are beneficial for understanding the toxicity of halophenols inside the human body and indicated that HPCD could be a promising detoxication agent for DBPs.
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Affiliation(s)
- Zhenxuan Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China; College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China
| | - Qingyao Zhu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Wenjie Liang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Zekun Han
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Cui Huang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - An Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Yujuan Lu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jiang Ma
- College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China
| | - Mengting Yang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China.
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An insight into the interaction between Indisulam and human serum albumin: Spectroscopic method, computer simulation and in vitro cytotoxicity assay. Bioorg Chem 2022; 127:106017. [PMID: 35841666 DOI: 10.1016/j.bioorg.2022.106017] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/24/2022] [Accepted: 07/07/2022] [Indexed: 11/24/2022]
Abstract
Indisulam (IDM) is a sulfanilamide anticancer agent and has been identified as a molecular glue recently. It shows potential for novel therapies development and brings more hope for curing human diseases. The affinity between molecular glues and plasma protein makes it significant to understand the characteristics of such substances. Therefore, the interaction between IDM and human serum albumin (HSA) was explored through solvent experiments, computer simulation experiments, enzyme kinetics experiments, and cell viability assay. The results revealed that IDM and HSA spontaneously formed stable binary complex with the binding constant of the order 105 M-1. IDM inserted in the site I of HSA, resulting the change in HSA secondary structure. And π electrons in IDM's benzene rings, as well as van der Waals forces and the H-bond, all helped to stabilize the HSA-IDM complex. The results of molecular dynamic simulation (MD) corresponded with the results from solvent experiment well. For instance, there were approximately 1-5 H-bonds between IDM and HSA. Lys199 and Arg218 were crucial energy contributors in the binding process. The esterase-like activity experiment confirmed that IDM inhibited the catalytic activity of HSA. In addition, cell experiment revealed that serum albumin can significantly reduce the cytotoxicity of IDM towards human embryonic kidney 293T (HEK293T) cells.
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67
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Xu M, Cui Z, Xiao Y, Liu C, Liu R, Zong W. Probing the potential toxicity by characterizing the binding mechanism of sodium dehydroacetate to human serum albumin. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:3655-3664. [PMID: 34882798 DOI: 10.1002/jsfa.11712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 11/03/2021] [Accepted: 12/09/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Sodium dehydroacetate (DHA-S) is a common food additive, which can combine with serum proteins in the plasma, but the interaction mechanism between DHA-S and human serum albumin (HSA) is unclear. In this study, multiple spectroscopy techniques, isothermal titration calorimetry (ITC), molecular docking and esterase activity test were employed to investigate the interaction mechanism of DHA-S and HSA. RESULTS A DHA-S-HSA complex was formed and the structure of HSA were altered by DHA-S. Since DHA-S changed the tight structure of the hydrophobic subdomain IIA where tryptophan (Trp) was placed, the hydrophobicity of the microenvironment of HSA was enhanced. With the addition of DHA-S, the skeleton structure of HSA became loose and the solvent shell on the HSA surface was destroyed. DHA-S altered the secondary structure of HSA, resulting in the decreased α-helix and increased β-sheet contents. The interaction was exothermic and spontaneous driven by van der Waals and hydrogen bonding. DHA-S inhibited the esterase activity of HSA. Molecular docking demonstrated that the binding site of DHA-S on HSA located at the cavity of subdomains IIA and IIIA, but the amino acids related to esterase activity of HSA were not in the binding pocket, indicating that the mechanism by which DHA-S inhibited HSA esterase activity was the change in protein structure. CONCLUSION This study illustrated that DHA-S interacted with HSA and the structure and function of HSA were affected by DHA-S. This research could help to understand the toxicity of DHA-S and provide basic data for safe use of food additives. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Mengchen Xu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, P. R. China
| | - Zhaohao Cui
- Qingdao Research Academy of Environmental Sciences, Qingdao, P. R. China
| | - Yihua Xiao
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, P. R. China
| | - Changqing Liu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, P. R. China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Qingdao, P. R. China
| | - Wansong Zong
- College of Population, Resources and Environment, Shandong Normal University, Jinan, P. R. China
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Du YB, Wang XF, Liu XJ, Li Y, Miao QF, Jiang M, Sheng WJ, Zhen YS. The recombinant defensin/HSA fusion protein that inhibits NF-κb associated with intensive macropinocytosis shows potent efficacy against pancreatic cancer. Biochem Pharmacol 2022; 201:115057. [PMID: 35489393 DOI: 10.1016/j.bcp.2022.115057] [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: 02/04/2022] [Revised: 04/11/2022] [Accepted: 04/19/2022] [Indexed: 11/29/2022]
Abstract
KRAS mutation and NF-κB both play crucial role in pancreatic cancer; in addition, defensin, the peptide mediator in innate immunity, can inhibit NF-κB. Assuming a strategy that targets both NF-κB and concomitantly the mutated KRAS indirectly via intensive macropinocytosis, we designed and generated a recombinant protein DF2-HSA which consists of two molecules of human beta-defensin 2 (HBD2) and a moiety of human serum albumin (HSA). As shown, the recombinant protein DF2-HSA markedly down-regulated NF-κB in both KRAS mutant MIA PaCa-2 cells and wild type BxPC-3 cells. Determined by confocal microscopy, the uptake of DF2-HSA in MIA PaCa-2 cells was more intense than that in BxPC-3 cells. The uptake was blocked by the specific inhibitor EIPA, indicating that DF2-HSA internalized via macropinocytosis. DF2-HSA displayed more potent cytotoxicity to cancer cells than HBD2. DF2-HSA induced apoptosis in cancer cells. Notably, DF2-HSA inhibited tumor cell spheroid formation, an effect comparable to that of salinomycin. DF2-HSA inhibited tumor cell migration and invasion. As detected with scanning electron microscopy, DF2-HSA strongly depleted filopodia on cell surface; and salinomycin induced similar changes. By in vivo imaging, DF2-HSA displayed intense tumor-site accumulation and lasting retention for over 14 days; however, HBD2 showed much less tumor-site accumulation and a shorter retention time for only 24 h. DF2-HSA suppressed the growth of pancreatic cancer MIA PaCa-2 xenograft in athymic mice; and its combination with gemcitabine achieved higher antitumor efficacy. In summary, the recombinant defensin/HSA fusion protein that inhibits NF-κb associated with intensive macropinocytosis is highly effective against pancreatic cancer.
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Affiliation(s)
- Yi-Bo Du
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | | | - Xiu-Jun Liu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yi Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Qing-Fang Miao
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Min Jiang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Wei-Jin Sheng
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Yong-Su Zhen
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
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Rajendran D, Chandrasekaran N, Waychal Y, Mukherjee A. Nanoplastics alter the conformation and activity of human serum albumin. NANOIMPACT 2022; 27:100412. [PMID: 35934234 DOI: 10.1016/j.impact.2022.100412] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/07/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
Nanoplastics finds its presence in most of the consumer products. Their chance of coming in contact with human cells and components is rampant. This study focuses on the interaction of polystyrene nanoplastics (PSNPs) with human serum albumin (HSA), ultimately causing structural and functional properties of the protein. Fluorescence and UV-Visible spectroscopic studies reported that PSNPs form a spontaneous ground-state complex with HSA, by hydrogen bonding, van der waal's, and hydrophobic force of attraction. This causes changes in the environment around major aromatic amino acids, especially tryptophan-214, which has a strong affinity with PSNPs. Further docking analysis confirmed hydrophobic interactions between PSNPs and aromatic amino acids in subdomain IIA of HSA. A shift in amide bands in HSA, as determined by FTIR analysis confirmed the disturbances in its secondary structure followed by reordering which will lead to the unfolding of HSA. Besides, PSNPs reduce the esterase activity of HSA by competitive inhibition. This molecular-level information such as binding energy, binding site, binding forces, reversible or irreversible binding, and structural changes of protein will shed light on the extent of toxicity in humans. This study will emphasize the urgent need for regulation of the use of nanoplastics (NPs) in consumer products, as well as the need for more research to determine the fate of NPs in the biological system.
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Affiliation(s)
- Durgalakshmi Rajendran
- Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Natarajan Chandrasekaran
- Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India.
| | - Yojana Waychal
- Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Amitava Mukherjee
- Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
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70
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Inclusion complex of 20(S)-protopanaxatriol with modified β-cyclodextrin: Characterization, solubility, and interaction with bovine serum albumin. Anal Biochem 2022; 653:114753. [PMID: 35691377 DOI: 10.1016/j.ab.2022.114753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/16/2022] [Accepted: 05/25/2022] [Indexed: 11/22/2022]
Abstract
20(S)-protopanaxatriol (PPT) is one of the ginsenosides isolated from Panax ginseng which have many pharmaceutical activities. However, the poor water solubility of PPT restrict its applications. Herein, a novel bridged-bis-[6-(3,3'-(ethylenedioxy) bis (propylamine))-6-deoxy-β-cyclodextrin] (EDBA-bis-β-CD) was designed and synthesized, and the inclusion complex (IC) of EDBA-bis-β-CD with PPT was successfully prepared in the solid state, and characterized by UV, 1H NMR, 2D ROESY, FT-IR, XRD and SEM and molecular modelling methods. The continuous variation method analysis indicated that the stoichiometry of the IC was 1:1. UV-vis spectral analysis demonstrated the binding constant Ks was 995.94 M-1, and the solubility study showed that the solubility of PPT improved 290 times. The interaction of the IC with bovine serum albumin (BSA) was investigated via fluorescence spectroscopy. The results indicated that fluorescence quenching of BSA by IC was static quenching. Thermodynamic studies showed that van der Waals forces and hydrogen bonding play significant roles in interaction. The esterase-like activity of BSA in the presence of IC showed that it reduce the esterase activity of BSA in a competitive manner. Furthermore, molecular docking and molecular dynamics simulations for EDBA-bis-β-CD/PPT and BSA/IC systems were generated to provide information on the stability and the forces in the binding.
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71
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Liu B, Zeng C, Zheng D, Zhao X, Song C, Qin T, Xu Z. A near-infrared dicyanoisophorone-based fluorescent probe for discriminating HSA from BSA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 274:121081. [PMID: 35248852 DOI: 10.1016/j.saa.2022.121081] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
Despite the rapid development of fluorescent probe techniques for the detection of human serum albumin (HSA), a probe that discriminates between HSA and bovine serum albumin (BSA) is still a challenging task, since their similar chemical structures. As a continuation of our work, herein, a dicyanoisophorone-based fluorescent probe DCO2 is systematically studied for discrimination of HSA from BSA. The photophysical and sensing performances of DCO2, including basic spectroscopic properties, sensing sensitivity, and selectivity, exhibits that DCO2 could selectively bind with HSA and display remarkable fluorescence enhancement (∼254-fold) at 685 nm. The gap of the fluorescent response of DCO2 between HSA and BSA is an obvious increase from 21% to 73% compared to the previous probe DCO1. The sensing mechanism was elucidated by Job's plot, displacement experiment, and molecular docking, suggesting that the specific response to HSA originated from the rigid donor structure and steric hindrance. DCO2 could be buried in the DS1 pocket of HSA, and only partly wedged into the DS1 pocket of BSA with exposing twisted N,N-diethylamino group outside. Application studies indicated that DCO2 has well detective behavior for HSA in the biological fluids. This work could provide a new approach to design HSA-specific near-infrared fluorescence probes.
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Affiliation(s)
- Bin Liu
- Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Conghui Zeng
- Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Danna Zheng
- Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Xiongfei Zhao
- Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Chao Song
- Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Tianyi Qin
- Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Zhongyong Xu
- Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China.
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Wang L, Liang YS, Wu ZB, Liu YS, Xiao YH, Hu T, Gao R, Fang J, Liu J, Wu AP. Exploring the interaction between Cry1Ac protein and Zn 2+, Cd 2+ metal ions by fluorescence quenching and molecular docking approaches. CHEMOSPHERE 2022; 297:134105. [PMID: 35245590 DOI: 10.1016/j.chemosphere.2022.134105] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 02/19/2022] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
Bacillus Thuringiensis (Bt) protein has a strong ability to complex with metal ions, which may increase the transport of metal ions in the soil multi-media system. In this study, the interactions between Cry1Ac protein and metal ions (Zn2+ and Cd2+) were investigated through spectroscopies and molecular docking methods. The spectra results showed that both Zn2+ and Cd2+ quenched the fluorescence intensity of Cry1Ac protein through the static quenching. The binding constants with 4-5 orders of magnitude also indicated the interactions between the ions and the Cry1Ac protein. The thermodynamic analysis showed that hydrogen bonds and van der Waals forces were predominant during the processes. In terms of the Förster non-radiation energy transfer theory, the binding distances between metal ions and Cry1Ac protein were approximately 0.21-0.24 nm, indicating the existence of a non-radiative energy transfer between them. Furthermore, molecular docking revealed that the metal ions participated in ligand binding with the Cry1Ac at the locations Asp569, Thr560, Asn564 and Gln566. The present work provided reasonable models helping us further understand the transport effect of heavy metals in the presence of Cry1Ac. The results could provide mechanistic insights into the nature of metal ions-Cry1Ac interactions and offer important information on the toxicity risk of metal ions-Cry1Ac binding interactions.
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Affiliation(s)
- Li Wang
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China
| | - Yun-Shan Liang
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China.
| | - Zhi-Bin Wu
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China
| | - Yi-Song Liu
- College of Veterinary Medicine, Hunan Agricultural University and National and Local Union Engineering Research Center of Veterinary Herbal Medicine Resource and Initiative, Changsha, 410128, PR China
| | - Yun-Hua Xiao
- College of Bioscience and Biotechnology, Hunan Agricultural University and Hunan Engineering Laboratory for Pollution Control and Waste Utilization in Swine Production, Changsha, 410128, PR China
| | - Teng Hu
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China
| | - Rong Gao
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China
| | - Jun Fang
- College of Bioscience and Biotechnology, Hunan Agricultural University and Hunan Engineering Laboratory for Pollution Control and Waste Utilization in Swine Production, Changsha, 410128, PR China
| | - Jiao Liu
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China
| | - Ai Ping Wu
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China
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73
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Vinod SM, Sangeetha MS, Thamarai Selvan R, Shoba G, Tamizhdurai P, Kumaran R. Molecular docking approach on the molecular interactions involving beta-lactoglobulin (βLG)-4-Dicyanomethylene2,6-Dimethyl-4-Hpyran (DDP) dye in the presence of an antibiotic, norfloxacin. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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74
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Khashkhashi-Moghadam S, Ezazi-Toroghi S, Kamkar-Vatanparast M, Jouyaeian P, Mokaberi P, Yazdyani H, Amiri-Tehranizadeh Z, Reza Saberi M, Chamani J. Novel perspective into the interaction behavior study of the cyanidin with human serum albumin-holo transferrin complex: Spectroscopic, calorimetric and molecular modeling approaches. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119042] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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75
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Belal F, Mabrouk M, Hammad S, Barseem A, Ahmed H. Multi-Spectroscopic, thermodynamic and molecular docking studies to investigate the interaction of eplerenone with human serum albumin. LUMINESCENCE 2022; 37:1162-1173. [PMID: 35489089 DOI: 10.1002/bio.4270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 04/20/2022] [Accepted: 04/26/2022] [Indexed: 11/07/2022]
Abstract
The binding of small molecular drugs with human serum albumin (HSA) has a crucial influence on their pharmacokinetics. The binding interaction between the antihypertensive Eplerenone (EPL)and HSA was investigated using multi-spectroscopic techniques for the first time. These techniques include UV-Vis spectroscopy, Fourier Transform Infrared (FT-IR), native fluorescence spectroscopy, synchronous fluorescence spectroscopy and molecular docking approach. The fluorescence spectroscopic study showed that EPL quenched HSA inherent fluorescence. The mechanism for quenching of HSA by EPL has been determined to be static in nature and confirmed by UV absorption and fluorescence spectroscopy. The modified Stern-Volmer equation was used to estimate the binding constant (Kb ) as well as the number of bindings (n). The results indicated that the binding occurs at a single site (Kb;2.238 x 103 L mol-1 at 298 K). The enthalpy and entropy changes (∆H and ∆S) were 58.061 and 0.258 K J mol-1 , respectively, illustrating that the principal intermolecular interactions stabilizing the EPL-HSA system are hydrophobic forces. Synchronous fluorescence spectroscopy revealed that EPL binding to HSA occurred around the tyrosine residue (Tyr) and this agreed with the molecular docking study. The FRET analysis confirmed the static quenching mechanism. The esterase enzyme activity of HSA was also evaluated showing its decrease in the presence of EPL. Furthermore, docking analysis and site-specific markers experiment revealed that EPL binds with HSA at subdomain IB (site III).
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Affiliation(s)
- Fathalla Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Mokhtar Mabrouk
- Department of pharmaceutical analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Sherin Hammad
- Department of pharmaceutical analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Aya Barseem
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt
| | - Hytham Ahmed
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt
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76
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Russi M, Cavalieri G, Marson D, Laurini E, Pricl S. Binding of the B-Raf Inhibitors Dabrafenib and Vemurafenib to Human Serum Albumin: A Biophysical and Molecular Simulation Study. Mol Pharm 2022; 19:1619-1634. [PMID: 35436118 DOI: 10.1021/acs.molpharmaceut.2c00100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Drug binding to human serum albumin (HSA) significantly affects in vivo drug transport and biological activity. To gain insight into the binding mechanism of the two B-Raf tyrosine kinase inhibitors dabrafenib and vemurafenib to HSA, in this work, we adopted a combined strategy based on fluorescence spectroscopy, isothermal titration calorimetry (ITC), circular dichroism (CD), and molecular simulations. Both anticancer drugs are found to bind spontaneously and with a 1:1 stoichiometry within the same binding pocket, located in Sudlow's site II (subdomain IIIA) of the protein with comparable affinity and without substantially perturbing the protein secondary structure. However, the nature of each drug-protein interactions is distinct: whereas the formation of the dabrafenib/HSA complex is more entropically driven, the formation of the alternative vemurafenib/HSA assembly is prevalently enthalpic in nature. Kinetic analysis also indicates that the association rate is similar for the two drugs, whereas the residence time of vemurafenib within the HSA binding pocket is somewhat higher than that determined for the alternative B-Raf inhibitor.
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Affiliation(s)
- Maria Russi
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS), DEA, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy
| | - Gabriele Cavalieri
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS), DEA, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy
| | - Domenico Marson
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS), DEA, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy
| | - Erik Laurini
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS), DEA, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy
| | - Sabrina Pricl
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS), DEA, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy.,Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, ul. Pomorska 141/143, 90-236 Łódź, Poland
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77
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Zargar S, Wani TA, Alsaif NA, Khayyat AIA. A Comprehensive Investigation of Interactions between Antipsychotic Drug Quetiapine and Human Serum Albumin Using Multi-Spectroscopic, Biochemical, and Molecular Modeling Approaches. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082589. [PMID: 35458787 PMCID: PMC9029314 DOI: 10.3390/molecules27082589] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/06/2022] [Accepted: 04/13/2022] [Indexed: 12/28/2022]
Abstract
Quetiapine (QTP) is a short-acting atypical antipsychotic drug that treats schizophrenia or manic episodes of bipolar disorder. Human serum albumin (HSA) is an essential transport protein that transports hormones and various other ligands to their intended site of action. The interactions of QTP with HSA and their binding mechanism in the HSA-QTP system was studied using spectroscopic and molecular docking techniques. The UV-Vis absorption study shows hyperchromicity in the spectra of HSA on the addition of QTP, suggesting the complex formation and interactions between QTP and HSA. The results of intrinsic fluorescence indicate that QTP quenched the fluorescence of HSA and confirmed the complex formation between HSA and QTP, and this quenching mechanism was a static one. Thermodynamic analysis of the HSA-QTP system confirms the involvement of hydrophobic forces, and this complex formation is spontaneous. The competitive displacement and molecular docking experiments demonstrated that QTP is preferentially bound to HSA subdomain IB. Furthermore, the CD experiment results showed conformational changes in the HSA-QTP system. Besides this, the addition of QTP does not affect the esterase-like activity of HSA. This study will help further understand the credible mechanism of transport and delivery of QTP via HSA and design new QTP-based derivatives with greater efficacy.
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Affiliation(s)
- Seema Zargar
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11451, Saudi Arabia; (S.Z.); (A.I.A.K.)
| | - Tanveer A. Wani
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia;
- Correspondence:
| | - Nawaf A. Alsaif
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia;
| | - Arwa Ishaq A. Khayyat
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11451, Saudi Arabia; (S.Z.); (A.I.A.K.)
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78
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Wang Z, Yang L, Xue S, Wang S, Zhu L, Ma T, Liu H, Li R. Molecular docking and dynamic insights on the adsorption effects of soy hull polysaccharides on bile acids. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Ziyi Wang
- College of Food Science and Technology Bohai University Jinzhou Liaoning 121013 China
| | - Lina Yang
- College of Food Science and Technology Bohai University Jinzhou Liaoning 121013 China
| | - Sen Xue
- College of Food Science and Technology Bohai University Jinzhou Liaoning 121013 China
| | - Shengnan Wang
- College of Food Science and Technology Bohai University Jinzhou Liaoning 121013 China
| | - Lijie Zhu
- College of Food Science and Technology Bohai University Jinzhou Liaoning 121013 China
| | - Tao Ma
- College of Food Science and Technology Bohai University Jinzhou Liaoning 121013 China
| | - He Liu
- College of Food Science and Technology Bohai University Jinzhou Liaoning 121013 China
| | - Ruren Li
- College of Food Science and Technology Bohai University Jinzhou Liaoning 121013 China
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79
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Yeggoni DP, Meti M, Subramanyam R. Chebulinic and chebulagic acid binding with serum proteins: biophysical and molecular docking approach. J Biomol Struct Dyn 2022; 41:4024-4039. [PMID: 35403561 DOI: 10.1080/07391102.2022.2060862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Chebulinic acid (CHN) and chebulagic acid (CHG) have been known for centuries for their anti-cancer, anti-diabetes, HIV and anti-inflammatory properties. In this study, the interaction of these phytochemicals CHN/CHG, with the two major transport proteins for various drugs, human serum albumin (HSA) and α-1-acid glycoprotein (AGP), was unraveled by using several spectroscopic techniques and computational methods. The binding of CHN/CHG quenches the HSA/AGP fluorescence intensities, and also these phytochemicals are bound strongly to HSA/AGP proteins. An apparent decrease in fluorescence intensities of CHN/CHG-HSA and CHN/CHG-AGP complex showed the static mode of fluorescence quenching. Furthermore, the intrinsic fluorescence and using site-specific markers ibuprofen competing with these molecules, thereby replacing it in the binding site of subdomain IIIA. The computational methods substantiated the experimental findings, revealing that CHN interacted with Lys414A, Glu492A, Glu492A and Lys413A residues of subdomain IIIA of HSA and for CHG showed the interaction with Lys545A and Lys413A residues of subdomain IIIA of HSA. Fluorescence and surface plasmon resonance data unveiled a previously unreported binding event between CHN/CHG and HSA; the determined binding affinities of both compounds were slightly higher for HSA than AGP. A change in functionality of protein confirmed the esterase-like activity of HSA in the presence of CHG/CHN upon binding with CHG/CHN. Displacement and circular dichroism (CD) experiments analysis showed that the two CHN/CHG and binding specifically to IIIA subdomain on HSA results in the conformational changes in the HSA. Thus, CD revealed a few conformational changes in HSA due to CHN/CHG. The binding of these two phytochemicals to the plasma proteins would give a path to develop new inspired drug molecules for chronic diseases.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | - Manjunath Meti
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | - Rajagopal Subramanyam
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, India
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80
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Sadeghi M, Miroliaei M, Taslimi P, Moradi M. In silico analysis of the molecular interaction and bioavailability properties between some alkaloids and human serum albumin. Struct Chem 2022. [DOI: 10.1007/s11224-022-01925-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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81
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Synthesis, characterization and investigating the binding mechanism of novel coumarin derivatives with human serum albumin: Spectroscopic and computational approach. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132366] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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82
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Evaluation of binding performance of bioactive compounds against main protease and mutant model spike receptor binding domain of SARS-CoV-2: Docking, ADMET properties and molecular dynamics simulation study. J INDIAN CHEM SOC 2022. [PMCID: PMC8900880 DOI: 10.1016/j.jics.2022.100417] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Phytochemicals present in medicinal plants have a variety of biological activities that help to combat against diseases. As part of efforts to study the binding performance of different phytochemicals derived from different plants like Zingiber officinale, Citrus limon, Syzygiumaromaticum, Ocimum tenuiflorum and Curcumin. We have screened 424 molecules. The binding affinity as well as physicochemical properties of the thebaine, acacetin, indomethacin, crinamineacetate, (S)-1-Piperideine-6-carboxylate, levamisole, melatonin, nicotinicacid, curcumin, methotrimeprazine, omeprazole, and methaqualone phytocompounds were analyzed through computational study. From the molecular docking study we found that, LEU50, ASN72, PRO96, TYR154, GLY170, ALA193, ARG222, and MET274 residues of main protease play a crucial role in binding with ligands. The present study revealed a noticeable interaction of GLY446, SER477, GLY482, THR500 and LEU518 residues with mutant of spike receptor binding domain SARS-CoV-2 protein were observed. Finally, 100 ns molecular dynamics simulation were used to study their dynamic properties as well as conformational flexibility. Free energy landscape analysis was performed of the 6LU7- acacetin and 6Y2E-acacetin systems and spike RBD-acacetin system. From molecular docking study and molecular dynamics study revealed that, the compound acacetin shows promising inhibitor towards both main protease as well as mutant spike RBD of SARS-CoV-2 protein.
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83
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Naik R, Seetharamappa J. Elucidating the binding mechanism of an antimigraine agent with a model protein: insights from molecular spectroscopic, calorimetric and computational approaches. J Biomol Struct Dyn 2022; 41:3686-3701. [PMID: 35322751 DOI: 10.1080/07391102.2022.2053747] [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: 10/18/2022]
Abstract
Sumatriptan (SUM), a serotonin activator used to treat migraines and cluster headaches. Molecular spectroscopic methods including fluorescence quenching, time dependent fluorescence, FRET, absorption, circular dichroism, differential scanning calorimetric and computational approaches were employed to unravel the interaction between sumatriptan and bovine serum albumin (BSA). The fluorescence quenching studies suggested the interaction between SUM and BSA with a moderate binding with the binding constant (Kb) in the order of 104. The findings of temperature and time dependent fluorescence quenching studies confirmed the role of static quenching mechanism. Thermodynamic parameters suggested the key role of electrostatic force in the interaction of SUM with BSA. Absorption and CD spectral studies revealed the bioenvironmental changes around the Trp in BSA upon binding of SUM. Calorimetric based thermal denaturation results confirmed that the thermal stability of BSA was improved in the presence of SUM. resulted in the this decreased flexibility of protein chain. Site competitive studies indicated SUM was located in the hydrophobic cavity of site I which was further confirmed by the docking and dynamic simulation studies. Additionally, molecular dynamics simulations inferred the microenvironmental condition around the SUM and the amino acids and forces involved in the binding of SUM with BSA.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Roopa Naik
- Department of Chemistry, Karnatak University, Dharwad, Karnataka, India
| | - J Seetharamappa
- Department of Chemistry, Karnatak University, Dharwad, Karnataka, India
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84
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Yasmeen S, Qais FA, Rana M, Islam A, Rahisuddin. Binding and thermodynamic study of thalidomide with calf thymus DNA: Spectroscopic and computational approaches. Int J Biol Macromol 2022; 207:644-655. [PMID: 35278515 DOI: 10.1016/j.ijbiomac.2022.03.036] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 03/04/2022] [Accepted: 03/07/2022] [Indexed: 02/09/2023]
Abstract
The thalidomide-DNA interactions have been investigated in detail by numerous biophysical techniques such as UV-vis, dye displacement assay, viscosity, cyclic voltammetry, circular dichroism, molecular docking, molecular dynamic simulation, FT-IR and 1H NMR spectroscopy. CD spectroscopy, thermal denaturation and viscosity measurement explained that thalidomide is groove binder. Molecular docking analysis highlighted that thalidomide binds trough minor groove of calf thymus DNA which also confirmed from dye displacement experiment. To our knowledge, this is the first instance thalidomide was shown to binds with calf thymus DNA. Molecular dynamic simulation indicated that the thalidomide-DNA system was stabilized by electrostatic attraction as the main interaction and mode of binding is minor groove. Our study provides a better understanding to the DNA-thalidomide binding affinity and it mechanism. Overall, all these in formations can be used for further understanding the pharmacological effects of thalidomide.
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Affiliation(s)
- Shama Yasmeen
- Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Aligarh Muslim University, Aligarh, UP 202002, India
| | - Manish Rana
- Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Asimul Islam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Rahisuddin
- Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India.
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85
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Huang Y, Yang Z, Chen P, Zhao Z, Lin C, Zhu C, Wu A. Insights on the interactions of human serum albumin with three natural phenylethanoid glycosides that inhibit HeLa cells proliferation. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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86
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Yazdani F, Shareghi B, Farhadian S, Momeni L. Structural insights into the binding behavior of flavonoids naringenin with Human Serum Albumin. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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87
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Verma P, Kaur L, Aswal P, Singh A, Ojha H, Rahman AJ, Singhal R, Tiwari AK, Pathak M. Luminescence studies of binding affinity of vildagliptin with bovine serum albumin. J Biomol Struct Dyn 2022; 41:3002-3013. [PMID: 35220922 DOI: 10.1080/07391102.2022.2043939] [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: 10/19/2022]
Abstract
Vildagliptin (VDG)is a frontier drug for diabetes mellitus. It is prescribed both in the monotherapy as well as in an amalgamation with other antidiabetic drugs. Drug-serum protein binding is an essential parameter which influences ADME properties of the drug. In current study, binding of VDG with serum protein (bovine serum albumin: BSA) was investigated using multi-spectroscopic techniques. A computational approach was also employed to identify the binding affinity of VDG with BSA at both Sudlow I and II sites. An enzyme activity assay specific for esterase was also investigated to know the post-binding consequences of VDG with BSA. Fluorescence spectra of BSA samples treated with VDG shows static quenching with binding parameters for VDG-BSA complex show single class of equivalent binding stoichiometry(n = 1.331) and binding constant 1.1 x 104M-1 at 298.15 K. The binding constant indicates important role of non-polar interactions in the binding process. Fluorescence resonance energy transfer (FRET) analysis of VDG absorption spectra and emission spectrum of BSA confirmed no significant resonance in energy transfer. Synchronous fluorescence of BSA after binding with VDG show maximum changes in emission intensity at tryptophan (Trp) residues. Post binding with VDG, BSA conformation changes as suggested by circular dichorism (CD) spectra of BSA and this lead to enhanced protein stability as indicated by a thermal melting curve of BSA.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Piyush Verma
- CBRN Protection and Decontamination Research Group, Division of Radiological Nuclear and Imaging Sciences (RNAIS), Institute of Nuclear Medicine and Allied Sciences, Defence R&D Organisation, Timarpur, Delhi, India
| | - Lajpreet Kaur
- CBRN Protection and Decontamination Research Group, Division of Radiological Nuclear and Imaging Sciences (RNAIS), Institute of Nuclear Medicine and Allied Sciences, Defence R&D Organisation, Timarpur, Delhi, India
| | - Priyanka Aswal
- Department of Pharmaceutics, Veer Madho Singh Bhandari Uttarakhand Technical University, Dehradun, Uttarakhand, India
| | - Anju Singh
- Department of Chemistry, Ramjas College, University of Delhi, Delhi, India
| | - Himanshu Ojha
- CBRN Protection and Decontamination Research Group, Division of Radiological Nuclear and Imaging Sciences (RNAIS), Institute of Nuclear Medicine and Allied Sciences, Defence R&D Organisation, Timarpur, Delhi, India
| | - Afreen Jahan Rahman
- CBRN Protection and Decontamination Research Group, Division of Radiological Nuclear and Imaging Sciences (RNAIS), Institute of Nuclear Medicine and Allied Sciences, Defence R&D Organisation, Timarpur, Delhi, India
| | - Rahul Singhal
- Department of Chemistry, Shivaji College, University of Delhi, Delhi, India
| | - Anjani K Tiwari
- Department of Chemistry, Baba Bhim Rao Ambedkar University, Lucknow, India
| | - Mallika Pathak
- Department of Chemistry, Miranda House, University of Delhi, Delhi, India
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88
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Wani TA, Alanazi MM, Alsaif NA, Bakheit AH, Zargar S, Alsalami OM, Khan AA. Interaction Characterization of a Tyrosine Kinase Inhibitor Erlotinib with a Model Transport Protein in the Presence of Quercetin: A Drug-Protein and Drug-Drug Interaction Investigation Using Multi-Spectroscopic and Computational Approaches. Molecules 2022; 27:molecules27041265. [PMID: 35209054 PMCID: PMC8874853 DOI: 10.3390/molecules27041265] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/10/2022] [Accepted: 02/11/2022] [Indexed: 11/17/2022] Open
Abstract
The interaction between erlotinib (ERL) and bovine serum albumin (BSA) was studied in the presence of quercetin (QUR), a flavonoid with antioxidant properties. Ligands bind to the transport protein BSA resulting in competition between different ligands and displacing a bound ligand, resulting in higher plasma concentrations. Therefore, various spectroscopic experiments were conducted in addition to in silico studies to evaluate the interaction behavior of the BSA-ERL system in the presence and absence of QUR. The quenching curve and binding constants values suggest competition between QUR and ERL to bind to BSA. The binding constant for the BSA-ERL system decreased from 2.07 × 104 to 0.02 × 102 in the presence of QUR. The interaction of ERL with BSA at Site II is ruled out based on the site marker studies. The suggested Site on BSA for interaction with ERL is Site I. Stability of the BSA-ERL system was established with molecular dynamic simulation studies for both Site I and Site III interaction. In addition, the analysis can significantly help evaluate the effect of various quercetin-containing foods and supplements during the ERL-treatment regimen. In vitro binding evaluation provides a cheaper alternative approach to investigate ligand-protein interaction before clinical studies.
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Affiliation(s)
- Tanveer A Wani
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Mohammed M Alanazi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Nawaf A Alsaif
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Ahmed H Bakheit
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Seema Zargar
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11451, Saudi Arabia
| | - Ommalhasan Mohammed Alsalami
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11451, Saudi Arabia
| | - Azmat Ali Khan
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
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89
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Hekmat A, Hatamie S, Saboury AA. The effects of synthesized silver nanowires on the structure and esterase-like activity of human serum albumin and their impacts on human endometrial stem cells. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2034859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Azadeh Hekmat
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shadie Hatamie
- Institute of NanoEngineering and MicroSystems, National Tsing Hua University, Hsinchu, Taiwan
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
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90
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Szymaszek P, Fiedor P, Chachaj-Brekiesz A, Tyszka-Czochara M, Świergosz T, Ortyl J. Molecular interactions of bovine serum albumin (BSA) with pyridine derivatives as candidates for non-covalent protein probes: a spectroscopic investigation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118262] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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91
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Chen R, He RJ, Guo D, Zhang ZF, Zhang WG, Fan J. Interactions of diclazuril enantiomers with serum albumins: Multi-spectroscopic and molecular docking approaches. J Mol Recognit 2022; 35:e2948. [PMID: 35094438 DOI: 10.1002/jmr.2948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 11/30/2021] [Accepted: 12/16/2021] [Indexed: 01/17/2023]
Abstract
In this work, multi-spectroscopic and molecular docking methods have been conducted in the investigation of enantioselective interactions between diclazuril enantiomers and human/bovine serum albumins (HSA/BSA). The binding constants between serum albumins (SAs) and diclazuril enantiomers revealed that SAs exhibited stronger binding affinity for (R)-diclazuril than (S)-enantiomer. In addition, the fluorescence quenching of SAs induced by diclazuril enantiomers was ascribed to static quenching mechanism, in which hydrogen bonds and Van der Waals forces were the main interactions. According to the thermodynamic study, binding of diclazuril enantiomers and SAs was an exothermic process driven by enthalpy change. Then, circular dichroism spectroscopy of SAs with diclazuril enantiomers revealed that the SAs conformation had changed in the presence of diclazuril. Moreover, molecular docking technology was applied in exploration of interactions between SAs and diclazuril enantiomers. The docking energy between SAs and (R)-diclazuril was larger than (S)-diclazuril, which indicated that the affinity of SAs with (R)-diclazuril was stronger than (S)-enantiomer. This work may provide valuable information for explaining differences in pharmacokinetics and residue elimination of diclazuril enantiomers in living organisms.
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Affiliation(s)
- Ran Chen
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou, China
| | - Ru-Jian He
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou, China
| | - Dong Guo
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou, China.,Guangzhou Research & Creativity Biotechnology Co. Ltd., Guangzhou, China
| | - Zhi-Feng Zhang
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou, China
| | - Wei-Guang Zhang
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou, China
| | - Jun Fan
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou, China
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92
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Biophysicochemical studies of a ruthenium (II) nitrosyl thioether‐thiolate complex binding to BSA: Mechanistic information, molecular docking, and relationship to antibacterial and cytotoxic activities. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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93
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Basu A, Bhowmick S, Mukherjee A. Flavonolignan silibinin abrogates SDS induced fibrillation of human serum albumin. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2021.100275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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94
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Meira Menezes T, Assis C, Lacerda Cintra AJ, Silva dos Santos RC, Martins do Vale WK, Max Gomes Martins R, de Souza Bezerra R, Seabra GDM, Li C, Neves JL. Binding Mechanism between Acetylcholinesterase and Drugs Pazopanib and Lapatinib: Biochemical and Biophysical Studies. ACS Chem Neurosci 2021; 12:4500-4511. [PMID: 34808043 DOI: 10.1021/acschemneuro.1c00521] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Tyrosine kinase inhibitors (TKIs) are antitumor compounds that prevent the phosphorylation of proteins in a biological environment. However, the multitarget performance of TKIs promotes them as possible candidates for drug repositioning. In this work, interaction and inhibition studies through spectroscopic and computational techniques to evaluate the binding effectiveness of lapatinib and pazopanib TKIs to acetylcholinesterase (AChE) are reported. The results indicated potent inhibition at the μM level. The types of inhibition were identified, with pazopanib acting through non-competitive inhibition and lapatinib through acompetitive inhibition. The fluorescence suppression studies indicate a static mechanism for lapatinib-AChE and pazopanib-AChE systems, with a binding constant in the order of 105 M-1. The obtained thermodynamic parameters reveal interactions driven by van der Waals forces and hydrogen bonds in the lapatinib-AChE system (ΔH° and ΔS° < 0). In contrast, the pazopanib-AChE system shows positive ΔH° and ΔS°, characteristic of hydrophobic interactions. The Foster resonance energy transfer study supports the fluorescence studies performed. The 3D fluorescence studies suggest changes in the microenvironment of the tryptophan and tyrosine residues of the protein in contact with lapatinib and pazopanib. The results suggest effective inhibition and moderate interaction of the drugs with AChE, making them interesting for conducting more in-depth repositioning studies as AChE inhibitors.
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Affiliation(s)
- Thaís Meira Menezes
- Fundamental Chemistry Department, Federal University of Pernambuco, Recife 50670-901, Brazil
| | - Caio Assis
- Department of Biochemistry and Physiology, Federal University of Pernambuco, Recife 50670-901, Brazil
| | | | | | | | - Regildo Max Gomes Martins
- Post-Graduate in Biotechnology Multi-Institutional Program, PPGBIOTEC, Federal University of Amazonas, Manaus 69067-005, Brazil
| | - Ranilson de Souza Bezerra
- Department of Biochemistry and Physiology, Federal University of Pernambuco, Recife 50670-901, Brazil
| | | | - Chenglong Li
- Department of Medicinal Chemistry, University of Florida, Gainesville, Florida 32610, United States
| | - Jorge Luiz Neves
- Fundamental Chemistry Department, Federal University of Pernambuco, Recife 50670-901, Brazil
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95
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Rabbani G, Ahn SN. Review: Roles of human serum albumin in prediction, diagnoses and treatment of COVID-19. Int J Biol Macromol 2021; 193:948-955. [PMID: 34673106 PMCID: PMC8520831 DOI: 10.1016/j.ijbiomac.2021.10.095] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 10/03/2021] [Accepted: 10/13/2021] [Indexed: 12/17/2022]
Abstract
The severe acute respiratory syndrome corona virus-2 (SARS-CoV-2) keeps on destroying normal social integrity worldwide, bringing about extraordinary medical services, cultural and financial interruption. Individuals with diabetes have been demonstrated to be at higher risk of complications and even death when exposed to SARS-CoV-2. Regardless of pandemic scale infection, there is presently limited comprehension on the potential impact of SARS-CoV-2 on individuals with diabetes. Human serum albumin (HSA) is the most abundant circulating plasma protein in human serum and attracted more interest from researchers because most susceptible to non-enzymatic glycation reactions. Albumin down-regulates the expression of ACE2 that is the target receptor of COVID-19. Hypoalbuminemia, coagulopathy, and vascular disease have been connected in COVID-19 and appear to predict outcomes independent of age and morbidity. This review discusses the most recent evidence that the ACE/ACE2 ratio could influence by human serum albumin both the susceptibility of individuals to SARS-CoV-2 infection and the outcome of the COVID-19 disease.
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Affiliation(s)
- Gulam Rabbani
- Nano Diagnostics & Devices (NDD), B-312 IT-Medical Fusion Center, 350-27 Gumidae-ro, Gumi-si, Gyeongbuk 39253, Republic of Korea.
| | - Saeyoung Nate Ahn
- Nano Diagnostics & Devices (NDD), B-312 IT-Medical Fusion Center, 350-27 Gumidae-ro, Gumi-si, Gyeongbuk 39253, Republic of Korea; Fuzbien Technology Institute, 13 Taft Court, Rockville, MD 20850, USA.
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96
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Rabbani G, Ahn SN, Kwon H, Ahmad K, Choi I. Penta-peptide ATN-161 based neutralization mechanism of SARS-CoV-2 spike protein. Biochem Biophys Rep 2021; 28:101170. [PMID: 34778573 PMCID: PMC8578017 DOI: 10.1016/j.bbrep.2021.101170] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 10/25/2021] [Accepted: 11/08/2021] [Indexed: 12/12/2022] Open
Abstract
SARS-CoV-2 has become a big challenge for the scientific community worldwide. SARS-CoV-2 enters into the host cell by the spike protein binding with an ACE2 receptor present on the host cell. Developing safe and effective inhibitor appears an urgent need to interrupt the binding of SARS-CoV-2 spike protein with ACE2 receptor in order to reduce the SARS-CoV-2 infection. We have examined the penta-peptide ATN-161 as potential inhibitor of ACE2 and SARS-CoV-2 spike protein binding, where ATN-161 has been commercially approved for the safety and possess high affinity and specificity towards the receptor binding domain (RBD) of S1 subunit in SARS-CoV-2 spike protein. We carried out experiments and confirmed these phenomena that the virus bindings were indeed minimized. ATN-161 peptide can be used as an inhibitor of protein-protein interaction (PPI) stands as a crucial interaction in biological systems. The molecular docking finding suggests that the binding energy of the ACE2-spike protein complex is reduced in the presence of ATN-161. Protein-protein docking binding energy (-40.50 kcal/mol) of the spike glycoprotein toward the human ACE2 and binding of ATN-161 at their binding interface reduced the biding energy (-26.25 kcal/mol). The finding of this study suggests that ATN-161 peptide can mask the RBD of the spike protein and be considered as a neutralizing candidate by binding with the ACE2 receptor. Peptide-based masking of spike S1 protein (RBD) and its neutralization is a highly promising strategy to prevent virus penetration into the host cell. Thus masking of the RBD leads to the loss of receptor recognition property which can reduce the chance of infection host cells.
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Affiliation(s)
- Gulam Rabbani
- Nano Diagnostics & Devices (NDD), IT-Medical Fusion Center, 350-27 Gumidae-ro, Gumi-si, Gyeongbuk, 39253, Republic of Korea
| | - Saeyoung Nate Ahn
- Nano Diagnostics & Devices (NDD), IT-Medical Fusion Center, 350-27 Gumidae-ro, Gumi-si, Gyeongbuk, 39253, Republic of Korea
- Fuzbien Technology Institute, 13 Taft Court, Rockville, MD, 20850, USA
| | - Hyunhwa Kwon
- Nano Diagnostics & Devices (NDD), IT-Medical Fusion Center, 350-27 Gumidae-ro, Gumi-si, Gyeongbuk, 39253, Republic of Korea
| | - Khurshid Ahmad
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Inho Choi
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, 38541, Republic of Korea
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97
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Alves JEF, Lucena MLC, de Souza Lucena AE, das Merces AAD, de Azevedo RDS, Sousa GLS, de Moura RO, Alves de Lima MDC, de Carvalho Júnior LB, de Almeida SMV. A simple method for obtaining human albumin and its use for in vitro interaction assays with indole-thiazole and indole-thiazolidinone derivatives. Int J Biol Macromol 2021; 192:126-137. [PMID: 34562539 DOI: 10.1016/j.ijbiomac.2021.09.109] [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] [Received: 08/03/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 12/20/2022]
Abstract
This work aimed to develop a simple and low-cost method to obtain human serum albumin (HSA) and its consequent application for in vitro drug interaction assays. The HSA was purified by classic principles of plasma precipitation and thermocoagulation, using a multiple-stage fractionation. The quality of the final product was assessed by electrophoresis, protein dosage by the Lowry method and the pharmacopeial thermal stability. At the end, an isotonic solution of HSA with a total protein concentration of 2.7 mg·mL-1 was obtained, which was visualized as a single band corresponding to the molecular weight of 66 kDa. After the thermal stability test, there was no indication of turbidity or color change of the solution. Finally, the HSA was useful for interaction assays with indole-thiazole and indole-thiazolidinone derivatives through UV-vis absorption and fluorescence spectroscopic studies, as well as by docking molecular analysis. Derivatives quenched the intrinsic fluorescence of HSA, disrupted the tryptophan residues microenvironment, and probably bind at Sudlow's site I. Therefore, the simplified methodology developed in this work proved to be effective in obtaining HSA that can be applied to research goals including drug interaction assays.
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Affiliation(s)
| | | | | | | | - Rafael David Souto de Azevedo
- Laboratório de Biologia Molecular, Universidade de Pernambuco (UPE), Multicampi Garanhuns, Garanhuns, PE 55290-000, Brazil
| | - Gleyton Leonel Silva Sousa
- Programa de Doutorado em Química, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ 23897-000, Brazil
| | - Ricardo Olimpio de Moura
- Departamento de Ciências Biológicas e da Saúde, Universidade Estadual da Paraíba, João Pessoa, PB 58429-500, Brazil
| | - Maria do Carmo Alves de Lima
- Laboratório de Química e Inovação Terapêutica (LQIT) - Departamento de Antibióticos, Universidade Federal de Pernambuco, Recife, PE 50670-901, Brazil
| | | | - Sinara Mônica Vitalino de Almeida
- Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, Recife, PE 50670-901, Brazil; Laboratório de Biologia Molecular, Universidade de Pernambuco (UPE), Multicampi Garanhuns, Garanhuns, PE 55290-000, Brazil.
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98
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Zargar S, Wani TA. Exploring the binding mechanism and adverse toxic effects of persistent organic pollutant (dicofol) to human serum albumin: A biophysical, biochemical and computational approach. Chem Biol Interact 2021; 350:109707. [PMID: 34656558 DOI: 10.1016/j.cbi.2021.109707] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/01/2021] [Accepted: 10/13/2021] [Indexed: 02/07/2023]
Abstract
The organochlorine pesticide dicofol (DCF), a persistent organic pollutant, is used as acaricide worldwide. Considering its large consumption in the agriculture sector and potential toxic effects such as endocrine disruption, carcinogenicity, and environmental persistence are detrimental to human health. To take an extensive evaluation of its potential toxicity, the current study was aimed to explore the binding mechanism and adverse effect of DCF on human serum albumin (HSA) by using an array of biophysical techniques (UV-visible, fluorescence, 3D fluorescence, and circular dichroism spectroscopy), isothermal titration calorimetric (ITC), computational methods and biochemical approaches. Fluorescence quenching and UV-Visible spectra of the HSA-DCF system confirmed static quenching mechanism and complex formation between HSA and DCF. The thermodynamics results from ITC revealed DCF-HSA interaction was exothermic and spontaneous and involved hydrophobic interactions and hydrogen bonding. The esterase activity of HSA displayed constant Vmax and elevated Km values confirming DCF-HSA competitive interaction. Circular dichroism spectra results revealed structural changes in HSA protein on interaction with DCF. Furthermore, molecular-specific site marker and molecular modelling results affirmed that the binding Site of DCF is Site I of HSA. A significant carbonyl content level in DCF-HSA system suggested protein structure damage. This work is likely to add a better understanding of DCF toxicity in human health and helpful in fortifying the check on food safety.
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Affiliation(s)
- Seema Zargar
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11451, Saudi Arabia
| | - Tanveer A Wani
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, 11451, Saudi Arabia.
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99
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Wani TA, Alsaif NA, Alanazi MM, Bakheit AH, Khan AA, Zargar S. Binding of colchicine and ascorbic acid (vitamin C) to bovine serum albumin: An in-vitro interaction study using multispectroscopic, molecular docking and molecular dynamics simulation study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117542] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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100
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Baranowska K, Mońka M, Bojarski P, Józefowicz M. Insight into Molecular Interactions of Two Methyl Benzoate Derivatives with Bovine Serum Albumin. Int J Mol Sci 2021; 22:11705. [PMID: 34769135 PMCID: PMC8584066 DOI: 10.3390/ijms222111705] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 11/16/2022] Open
Abstract
The nature and mechanisms of interaction between two selected methyl benzoate derivatives (methyl o-methoxy p-methylaminobenzoate-I and methyl o-hydroxy p-methylaminobenzoate-II) and model transport protein bovine serum albumin (BSA) was studied using steady-state and time-resolved spectroscopic techniques. In order to understand the role of Trp residue of BSA in the I-BSA and II-BSA interaction, the effect of free Trp amino acid on the both emission modes (LE-locally excited (I and II) and ESIPT-excited state intramolecular proton transfer (II)) was investigated as well. Experimental results show that the investigated interactions (with both BSA and Trp) are mostly conditioned by the ground and excited state complex formation processes. Both molecules form stable complexes with BSA and Trp (with 1:1 stoichiometry) in the ground and excited states. The binding constants were in the order of 104 M-1. The absorption- and fluorescence-titration experiments along with the time-resolved fluorescence measurements show that the binding of the I and II causes fluorescence quenching of BSA through the static mechanism, revealing a 1:1 interaction. The magnitude and the sign of the thermodynamic parameters, ΔH, ΔS, and ΔG, determined from van't Hoff relationship, confirm the predominance of the hydrogen-bonding interactions for the binding phenomenon. To improve and complete knowledge of methyl benzoate derivative-protein interactions in relation to supramolecular solvation dynamics, the time-dependent fluorescence Stokes' shifts, represented by the normalized spectral response function c(t), was studied. Our studies reveal that the solvation dynamics that occurs in subpicosecond time scale in neat solvents of different polarities is slowed down significantly when the organic molecule is transferred to BSA cavity.
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Affiliation(s)
| | | | | | - Marek Józefowicz
- Institute of Experimental Physics, Faculty of Mathematics, Physics and Informatics, University of Gdańsk, Wita Stwosza 57, 80-308 Gdańsk, Poland; (K.B.); (M.M.); (P.B.)
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