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Bisaria I, Chauhan C, Muthu SA, Parvez S, Ahmad B. The effect of chrysin binding on the conformational dynamics and unfolding pathway of human serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 316:124332. [PMID: 38676982 DOI: 10.1016/j.saa.2024.124332] [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: 11/29/2023] [Revised: 03/20/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024]
Abstract
Studies on the interactions between ligands and proteins provide insights into how a possible medication alters the structures and activities of the target or carrier proteins. The natural flavonoid aglycone Chrysin (CHR) has demonstrated anti-inflammatory, antioxidant, antiapoptotic, neuroprotective, and antineoplastic effects, both in vitro and in vivo. In this work, we investigated the impact of CHR binding on the as-yet-unexplored conformation, dynamics, and unfolding mechanism of human serum albumin (HSA). We determined CHR binding to HSA domain-II with the association constant (Ka) of 2.70 ± 0.21 × 105 M-1. The urea-induced sequential unfolding mechanism of HSA was used to elucidate the debatable binding location of CHR. CHR binding induced both secondary and tertiary structural alterations in the protein as studied by far-UV circular dichroism and intrinsic fluorescence spectroscopy. Red edge excitation shift (REES) indicated a decrease in conformational dynamics of the protein on the complex formation. This suggested an ordered compact and spatial arrangement of the CHR-boundmolecule. The binding of CHR was found to significantly modulate the urea-induced unfolding pathway of HSA. Urea-induced unfolding pathway of HSA became a two-state process (N-U) from a three-state process (N-I-U). The interaction of CHR is found to increase the thermal stability of the protein by ∼4 °C. This study focuses on the fundamental sciences and demonstrates how prospective medication compounds can alter the dynamics and stability of protein structure.
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Affiliation(s)
- Ishita Bisaria
- Protein Assembly Laboratory, Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Chanchal Chauhan
- Protein Assembly Laboratory, Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India; Department of Molecular Medicine, School of Interdisciplinary Studies, Jamia Hamdard, New Delhi 110062, India
| | - Shivani A Muthu
- Protein Assembly Laboratory, Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India; Department of Molecular Medicine, School of Interdisciplinary Studies, Jamia Hamdard, New Delhi 110062, India
| | - Suhel Parvez
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Basir Ahmad
- Protein Assembly Laboratory, Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India.
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Chakraborty D, Chukwuka AV, Podder S, Sharma P, Bhowmick S, Mistri TK, Saha NC. Effects of α-olefin sulfonate (AOS) on Tubifex tubifex: toxicodynamic-toxicokinetic inferences from the general unified threshold (GUTS) model, biomarker responses and molecular docking predictions. ECOTOXICOLOGY (LONDON, ENGLAND) 2024:10.1007/s10646-024-02790-8. [PMID: 39020070 DOI: 10.1007/s10646-024-02790-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/08/2024] [Indexed: 07/19/2024]
Abstract
We investigated the potential ecological risks and harm to aquatic organisms posed by anionic surfactants such as α-olefin sulfonate (AOS), which are commonly found in industrial and consumer products, including detergents. This study assessed acute (96-h) and subchronic (14-day) responses using antioxidant activity, protein levels, and histopathological changes in Tubifex tubifex exposed to different AOS concentrations (10% of the LC50, 20% of the LC50, and a control). Molecular docking was used to investigate the potential interactions between the key stress biomarker enzymes (superoxide dismutase, catalase, and cytochrome c oxidase) of Tubifex tubifex. Acute AOS exposure showed a concentration-dependent decrease in survival, and the general unified threshold (GUTS) model revealed that survivorship is linked to individual response patterns rather than random (stochastic) fluctuations. The GUTS model also revealed dose-dependent toxicity patterns in Tubifex tubifex exposed to α-olefin sulfonate (AOS), with adaptive mechanisms at lower concentrations but significant increases in mortality beyond a certain threshold, emphasizing the role of the AOS concentration in shaping its toxicological impact. Exposure to AOS disrupted antioxidant activity, inducing oxidative stress, with GST and GPx showing positive associations with surfactant concentration and increased lipid peroxidation (elevated MDA levels); moreover, AOS exposure decreased protein concentration, signifying disturbances in vital cellular processes. Histopathological examinations revealed various tissue-level alterations, including cellular vacuolation, cytoplasmic swelling, inflammation, necrosis, and apoptosis. Molecular docking analysis demonstrated interactions between AOS and enzymes (-catalase, superoxide dismutase, and cytochrome c oxidase) in Tubifex tubifex, including hydrophobic and hydrogen bond interactions, with the potential to disrupt enzyme structures and activities, leading to cellular process disruptions, oxidative stress, and tissue damage. According to the species sensitivity distribution (SSD), the difference in toxicity between Tilapia melanopleura (higher sensitivity) and Daphnia magna (low sensitivity) to AOS suggests distinct toxicokinetic and toxicodynamic mechanisms attributable to more complex physiology in Tilapia and efficient detoxification in Daphnia due to its smaller size.
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Affiliation(s)
| | - Azubuike Victor Chukwuka
- Department of Environmental Quality Control (EQC), National Environmental Standards and Regulations Enforcement Agency, Abuja, Nigeria.
| | - Sanjoy Podder
- Department of Zoology, The University of Burdwan, Burdwan, West Bengal, India
| | - Pramita Sharma
- Department of Zoology, The University of Burdwan, Burdwan, West Bengal, India
| | - Shovonlal Bhowmick
- Department of Chemical Technology, University of Calcutta, Kolkata, India
| | - Tapan Kumar Mistri
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur Campus, Chennai, India
| | - Nimai Chandra Saha
- Department of Zoology, Bidhannagar College, Salt Lake City, West Bengal, India.
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Zhang Z, Dai L, Yang K, Luo J, Zhang Y, Ding P, Tian J, Tuo X, Chi B. Molecular insight on the binding of halogenated organic phosphate esters to human serum albumin and its effect on cytotoxicity of halogenated organic phosphate esters. Int J Biol Macromol 2024; 270:132383. [PMID: 38754667 DOI: 10.1016/j.ijbiomac.2024.132383] [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: 03/21/2024] [Revised: 04/25/2024] [Accepted: 05/13/2024] [Indexed: 05/18/2024]
Abstract
Halogenated Organic Phosphate Esters (OPEs) are commonly found in plasticizers and flame retardants. However, they are one kind of persistent contaminants that can pose a significant threat to human health and ecosystem as new environmental estrogen. In this study, two representative halogenated OPEs, tris(1,3-dichloro-2-propyl) phosphate (TDCP) and tris(2,3-dibromopropyl) phosphate (TDBP), were selected as experimental subjects to investigate their interaction with human serum albumin (HSA). Despite having similar structures, the two ligands exhibited contrasting effects on enzyme activity of HSA, TDCP inhibiting enzyme activity and TDBP activating it. Furthermore, both TDCP and TDBP could bind to HSA at site I, interacted with Arg222 and other residues, and made the conformation of HSA unfolded. Thermodynamic parameters indicated the main driving forces between TDBP and HSA were hydrogen bonding and van der Waals forces, while TDCP was mainly hydrophobic force. Molecular simulations found that more hydrogen bonds of HSA-TDBP formed during the binding process, and the larger charge area of TDBP than TDCP could partially account for the differences observed in their binding abilities to HSA. Notably, the cytotoxicity of TDBP/TDCP was inversely proportional to their binding ability to HSA, implying a new method for determining the cytotoxicity of halogenated OPEs in vitro.
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Affiliation(s)
- Zihang Zhang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Lulu Dai
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Kaiyu Yang
- School of Pharmacy, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Jiaqing Luo
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Yue Zhang
- School of Pharmacy, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Pei Ding
- School of Pharmacy, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Jianwen Tian
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Xun Tuo
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China.
| | - Baozhu Chi
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China.
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Hu ZY, Wang WJ, Hu L, Shi JH, Jiang SL. Comprehending the intermolecular interaction of dacomitinib with bovine serum albumin: experimental and theoretical approaches. J Biomol Struct Dyn 2024; 42:3579-3592. [PMID: 37288787 DOI: 10.1080/07391102.2023.2218926] [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: 01/30/2023] [Accepted: 05/08/2023] [Indexed: 06/09/2023]
Abstract
Dacomitinib (DAC), as a member of tyrosine kinase inhibitors is primarily used to treat non-small cell lung cancer. The intermolecular interaction between DAC and bovine serum albumin (BSA) was comprehended with the help of experiments and theoretical simulations. The outcomes indicated that DAC quenched the endogenous fluorescence of BSA through static quenching mode. In the binding process, DAC was preferentially inserted into the hydrophobic cavity of BSA subdomain IA (site III), and a fluorescence-free DAC-BSA complex with molar ratio of 1:1 was generated. The outcomes confirmed that DAC had a stronger affinity on BSA and the non-radiative energy transfer occurred in the combination process of two. And, it can be inferred from the outcomes of thermodynamic parameters and competition experiments with 8-aniline-1-naphthalenesulfonic acid (ANS) and D-(+)- sucrose that hydrogen bonds (H-bonds), van der Waals forces (vdW) and hydrophobic forces had a significant impact in inserting DAC into the hydrophobic cavity of BSA. The outcomes from multi-spectroscopic measurements that DAC could affect the secondary structure of BSA, that was, α-helix content decreased slightly from 51.0% to 49.7%. Moreover, the combination of DAC and BSA led to a reduction in the hydrophobicity of the microenvironment around tyrosine (Tyr) residues in BSA while had little influence on the microenvironment of around tryptophan (Trp) residues. The outcomes from molecular docking and molecular dynamics (MD) simulation further demonstrated the insertion of DAC into site III of BSA and hydrogen energy and van der Waals energy were the dominant energy of DAC-BSA stability. In addition, the influence of metal ions (Fe3+, Cu2+, Co2+, etc.) on the affinity of the system was explored.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Zhe-Ying Hu
- College of Pharmaceutic Science, Zhejiang University of Technology, Hangzhou, China
| | - Wan-Jun Wang
- College of Pharmaceutic Science, Zhejiang University of Technology, Hangzhou, China
| | - Lu Hu
- College of Pharmaceutic Science, Zhejiang University of Technology, Hangzhou, China
| | - Jie-Hua Shi
- College of Pharmaceutic Science, Zhejiang University of Technology, Hangzhou, China
| | - Shao-Liang Jiang
- College of Pharmaceutic Science, Zhejiang University of Technology, Hangzhou, China
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Erkmen C, Celik I. Interaction mechanism of a pesticide, Azoxystrobin with bovine serum albumin: Assessments through fluorescence, UV-Vis absorption, electrochemical and molecular docking simulation techniques. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123719. [PMID: 38064964 DOI: 10.1016/j.saa.2023.123719] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 01/13/2024]
Abstract
The current study's objective was to investigate how an antifungal pesticide Azoxystrobin (AZO) interacts with bovine serum albumin (BSA) under conditions that simulate a physiological medium (pH 7.4). This investigation was carried out using various experimental (UV-Vis absorption, steady-state fluorescence and 3-D fluorescence spectroscopies, and electrochemical) and theoretical (molecular docking and molecular dynamics simulations) methods. The fluorescence quenching data demonstrated that AZO caused fluorescence quenching in BSA, and this quenching process was attributed to the static quenching mechanism. By examining the fluorescence quenching of BSA at three different temperatures, it was determined that the binding constants for the AZO-BSA complexes were approximately 104 M-1 in magnitude, while the same magnitude of the binding constant was found by the electrochemical method. This indicates that the interaction between AZO and BSA was of moderate strength. This was further validated by the changes observed in the UV-Vis spectrum of BSA following the addition of AZO. The thermodynamic information, including ΔH and ΔS, revealed that the interaction forces primarily involved van der Waals forces as well as hydrogen bonds. The negative Gibbs free energy indicated that the reaction is spontaneous. In the theoretical investigation, the comparison highlights a remarkable consistency in how AZO interacts with the BSA active site over various time points. Hydrogen bonding and hydrophobic interactions consistently play a role in ensuring the stable and specific binding of the ligand. Moreover, the 3-D fluorescence spectral findings revealed alterations in the surrounding microenvironment of protein fluorophores when AZO binds. Upon analyzing the electrochemical data, it was observed that there was a consistent decrease in the peak currents of AZO when BSA was added to solutions containing AZO. The primary cause of this decrease in the peak currents was the reduction in the equilibrium concentration of AZO due to the addition of BSA. Furthermore, the formation of a non-electroactive complex between BSA and AZO, which impedes electron transport between AZO and the working electrode, accounts for these decreases. As a result, it can be said that the understanding of how AZO binds to BSA offers valuable insights that can be applied in the food, human health, and environment sectors.
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Affiliation(s)
- Cem Erkmen
- Hacettepe University, Faculty of Science, Department of Chemistry, Ankara 06800, Türkiye.
| | - Ismail Celik
- Erciyes University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Kayseri 38039, Türkiye.
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Wang Y, Li H, Lan J, Guan R, Bao Y, Du X, Zhao Z, Shi R, Hollert H, Zhao X. The weakened physiological functions of human serum albumin in presence of polystyrene nanoplastics. Int J Biol Macromol 2024; 261:129609. [PMID: 38253152 DOI: 10.1016/j.ijbiomac.2024.129609] [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: 09/11/2023] [Revised: 01/14/2024] [Accepted: 01/17/2024] [Indexed: 01/24/2024]
Abstract
Due to the widespread presence of nanoplastics (NPs) in daily essentials and drinking water, the potential adverse effects of NPs on human health have become a global concern. Human serum albumin (HSA), the most abundant and multi-functional protein in plasma, has been chosen to understand the biological effects of NPs after entering the blood. The esterase activity and the transport of bisphenol A in the presence of polystyrene nanoplastics (PSNPs) under physiological conditions (pH 4.0 and 7.4) have been investigated to evaluate the possible biological effects. The interactions between PSNPs and HSA have also been systematically studied by multispectral methods and dynamic light scattering techniques. The esterase activity of HSA presented a decreased trend with increasing PSNPs; conversely, higher permeabilities are accompanied by higher amounts of PSNPs. Compared with the unchanged hydrodynamic diameter and weaker interactions at pH 7.4, stronger binding between HSA and PSNPs at pH 4.0 led to a significant increase in the particle size of the PSNPs-HSA complex. The quenching mechanism belonged to the static quenching type. The electrostatic force is proposed to be the dominant factor for PSNPs binding to HSA. The work provides some information about the toxicity of NPs when exposed to humans.
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Affiliation(s)
- Yaoyao Wang
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Haimei Li
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Jing Lan
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China.
| | - Rui Guan
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Yan Bao
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Xianfa Du
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China; Department of Orthopedics, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Zongshan Zhao
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Rongguang Shi
- Ministry of Agriculture and Rural Affairs, Agro-Environmental Protection Institute, No. 31 Fukang Road, Nankai District, 300191 Tianjin, China
| | - Henner Hollert
- Department for Evolutionary Ecology and Environmental Toxicology, Goethe University, Frankfurt am Main 60438, Germany
| | - Xingchen Zhao
- Department for Evolutionary Ecology and Environmental Toxicology, Goethe University, Frankfurt am Main 60438, Germany
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Pani BSUL, Chandrasekaran N. Adsorption of clarithromycin on polystyrene nanoplastics surface and its combined adverse effect on serum albumin. Colloids Surf B Biointerfaces 2024; 234:113673. [PMID: 38086277 DOI: 10.1016/j.colsurfb.2023.113673] [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: 09/19/2023] [Revised: 11/20/2023] [Accepted: 11/24/2023] [Indexed: 02/09/2024]
Abstract
Emerging contaminants, such as antibiotics and nanoplastics, have garnered significant attention due to their potential adverse effects on diverse ecosystems. Antibiotic adsorption on the surface of nanoplastics potentially facilitates their long-range transport, leading to the synergistic effects of the complex. This research aims to examine the adsorption behavior of clarithromycin binding with polystyrene nanoplastics surface as well as their interaction between drug adsorbed polystyrene nanoplastics with serum albumin. Different spectroscopic methods were used to find out the interaction between clarithromycin and nanoplastics, under stimulated physiological conditions UV-vis spectroscopy showed a maximum of 22.8% percentage of the drug adsorbed with the polystyrene nanoplastics surface after 6 h of incubation. The fluorescence spectroscopic results demonstrated that the fluorescence intensity of serum albumin was quenched by the clarithromycin-polystyrene nanoplastics (CLA-PSNP) complex through static quenching. We calculated the number of binding stoichiometry, binding constants, and thermodynamic parameters. This study revealed that the CLA-PSNP binds to serum albumin spontaneously and its hydrophobic interactions played a significant role. The conformational changes in the structure of serum albumin were revealed from the findings of synchronous fluorescence spectra, CD spectra, and 3D fluorescence spectra, leading to the disturbance in functional activity. This study focuses valuable insights into the intermolecular interactions between clarithromycin-adsorbed polystyrene nanoplastics and serum albumin and its potential molecular-level biological toxicity.
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Lavanya K, Saranya J, Bodapati ATS, Reddy RS, Madku SR, Sahoo BK. Biophysical insights on the interaction of anticoagulant drug dicoumarol with calf thymus-DNA: deciphering the binding mode and binding force with thermodynamics. J Biomol Struct Dyn 2024; 42:1392-1403. [PMID: 37038635 DOI: 10.1080/07391102.2023.2199872] [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: 09/13/2022] [Accepted: 03/31/2023] [Indexed: 04/12/2023]
Abstract
The biological activity of drugs is exhibited due to their interactions with bio-receptors. Dicoumarol (DIC) is a natural hydroxycoumarin and a well-known anticoagulant. DNA is the genetic material and one of the targets of numerous drugs. The interaction of DIC with calf-thymus DNA (ct-DNA) has been studied using different biophysical techniques and docking studies. The binding constant in the order of 103 to 104 M-1 was observed from spectroscopic studies. Thermodynamic studies at 4 different temperatures revealed the spontaneity of the interaction with the entropy-driven process. Marker displacement studies with competitive markers of intercalators (ethidium bromide) and groove binders (Hoechst 33258) confirmed the groove-binding nature of DIC in DNA. The groove-binding mode of DIC was complemented by different studies like viscosity measurements, DNA melting, and the effect of KI on the binding. A minor perturbation in the DNA viscosity and no significant change in the DNA melting temperature (Tm) after binding with DIC further confirms the groove binding mode. The effect of KI on the DIC and DIC-DNA system suggested the absence of DIC intercalation. The absence of significant electrostatic force was revealed from the ionic-strength effect study. Binding-induced conformational variation in ct-DNA was absent in circular dichroism studies. Molecular docking studies suggested the position of DIC within the minor groove of ct-DNA, covering three base pairs long. The outcome of this report may help in understanding the pharmacodynamics and pharmacokinetics of dicoumarol analogs and related molecules.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- K Lavanya
- Department of H&S (Chemistry), Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad, India
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, Hyderabad, India
| | - Jagadeesan Saranya
- Department of H&S (Chemistry), Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad, India
| | - Anna Tanuja Safala Bodapati
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, Hyderabad, India
- Chemistry Division, BS&H Department, BVRIT College of Engineering for Women, Hyderabad, India
| | - Ragaiahgari Srinivas Reddy
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, Hyderabad, India
- Department of Chemistry, B. V. Raju Institute of Technology (BVRIT), Narsapur, India
| | - Shravya Rao Madku
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, Hyderabad, India
- Department of Chemistry, St. Francis College for Women, Hyderabad, India
| | - Bijaya Ketan Sahoo
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, Hyderabad, India
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Vinod LA, Rajendran D, Shivashankar M, Chandrasekaran N. Surface interaction of vancomycin with polystyrene microplastics and its effect on human serum albumin. Int J Biol Macromol 2024; 256:128491. [PMID: 38043666 DOI: 10.1016/j.ijbiomac.2023.128491] [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: 08/08/2023] [Revised: 11/20/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023]
Abstract
Microplastics have a well-documented ability to adsorb various chemicals and contaminants found in the environment. By similar mechanisms, when medicines are stored in plastic packaging, the leaching of plastics into the contents poses the risk of possible toxicity and decreased drug efficacy. The work thus examines the presence of two categories of anthropogenic materials - microplastics (MPs) and medications - with their possible combined effects and fate in biological systems. A study on the kinetics and isotherm of the adsorption of vancomycin hydrochloride on the surface of polystyrene microspheres is performed, and the best-fitting models are obtained respectively as the pseudo-second-order model and the Temkin isotherm. Further, the interaction of each of, the drug, MPs and drug-adsorbed MPs with human serum albumin (HSA), the model protein chosen to validate the potential toxicity in humans, is determined by fluorescence spectroscopy. A thermodynamic analysis of this protein-ligand interaction shows that the process is spontaneous, endothermic and entropically favoured, and that hydrophobic forces operate between the interacting species. An unfolding of HSA is observed, disrupting its functions like the esterase activity. Competitive binding experiments with Warfarin and Ibuprofen as specific site markers on HSA reveal that all the studied ligands bind non-specifically to HSA.
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Affiliation(s)
- Lydia Ann Vinod
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Durgalakshmi Rajendran
- Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Murugesh Shivashankar
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Natarajan Chandrasekaran
- Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India.
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Rajendran D, Chandrasekaran N. Unveiling the Modification of Esterase-like Activity of Serum Albumin by Nanoplastics and Their Cocontaminants. ACS OMEGA 2023; 8:43719-43731. [PMID: 38027364 PMCID: PMC10666218 DOI: 10.1021/acsomega.3c05447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/29/2023] [Indexed: 12/01/2023]
Abstract
Nanoplastics and other cocontaminants have raised concerns due to their widespread presence in the environment and their potential to enter the food chain. The harmful effects of these particles depend on various factors, such as nanoparticle size, shape, surface charge, and the nature of the cocontaminants involved. On entering the human body, human serum albumin (HSA) molecules bind and transport these particles in the blood system. The esterase-like activity of HSA, which plays a role in metabolizing drug/toxic compounds, was taken as a representative to portray the effects of these particles on HSA. Polystyrene nanoplastics (PSNPs) with different surface functionalization (plain (PS), amine (PS-NH2), and carboxy (PS-COOH)), different sizes (100 and 500 nm), and PS with cocontaminant metformin hydrochloride (Met-HCl), a widely used antidiabetic drug, were investigated in this study. Fluorescence emission spectra of HSA revealed that PS-NH2 exhibits a greater effect on protein conformation, smaller NPs have a greater influence on protein structure than larger NPs, and Met-HCl lowers PSNPs' affinity for HSA by coating the surface of the NPs, which may result in direct NP distribution to the drug's target organs and toxicity. Circular dichroism spectra also supported these results in terms of secondary structural changes. Esterase activity of HSA was inhibited by all the particles (except Met-HCl) by competitive inhibition as concluded from constant Vmax and increasing Km. Greater reduction in enzyme activity was observed for PS-NH2 among functionalizations and for 100 nm PS among sizes. Furthermore, Met-HCl lowers the inhibitory impact of PSNPs on HSA since the drug binds weakly to HSA, and so they can serve as a vector delivering PSNPs to their target organs, resulting in serious implications.
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Affiliation(s)
- Durgalakshmi Rajendran
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT University), Vellore 632014, Tamil Nadu, India
| | - Natarajan Chandrasekaran
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT University), Vellore 632014, Tamil Nadu, India
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11
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Wei S, Ye X, Lei H, Cao Z, Chen C, Zhang C, Zhang L, Chen C, Liu X, Zhang L, Chen X. Multiomics analyses reveal dose-dependent effects of dicofol exposure on host metabolic homeostasis and the gut microbiota in mice. CHEMOSPHERE 2023; 341:139997. [PMID: 37648173 DOI: 10.1016/j.chemosphere.2023.139997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/21/2023] [Accepted: 08/25/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND Environmental exposure to dicofol (DCF), one of common organochlorine pesticides (OCPs) widely used for controlling agricultural pests, elicits a potential risk for human health due to its toxicity. However, potential physiological hazards of oral DCF exposure remain largely unknown. METHODS Mice were exposed to relatively chronic and subacute DCF at different doses (5, 20 and 100 mg/kg) by gavage for 2 weeks. 1H NMR-based metabolomics was used to explore alterations of metabolic profiling induced by DCF exposure. Targeted metabolomics was subsequently employed to investigate the dose-dependent effects of oral DCF exposure on lipid metabolism and the gut microbiota-derived metabolites of mice. 16S rRNA gene sequencing was further employed to evaluate the changes of gut community of mice exposed to DCF. RESULTS Oral exposure to DCF dose-dependently induced liver injury, manifested by hepatic lipogenesis, inflammation and liver dysfunction of mice. Typically, DCF exposure disrupted host fatty acids metabolism that were confirmed by marked alteration in the levels of related genes. DCF exposure also dose-dependently caused dysbiosis of the gut bacteria and its metabolites including altered microbial composition accompanied by inhibition of bacterial fermentation. CONCLUSION These results provide metabolic evidence that DCF exposure dose-dependently induces liver lipidosis and disruption of the gut microbiota in mice, which enrich our views of molecular mechanism of DCF hepatoxicity.
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Affiliation(s)
- Shuilin Wei
- Department of Pharmacy, Guangxi Academy of Medical Sciences and the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, China
| | - Xi Ye
- Department of Pharmacy, Guangxi Academy of Medical Sciences and the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, China
| | - Hehua Lei
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan, 430071, China
| | - Zheng Cao
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chuan Chen
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Cui Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Li Zhang
- Department of Pharmacy, Guangxi Academy of Medical Sciences and the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, China
| | - Chunxia Chen
- Department of Pharmacy, Guangxi Academy of Medical Sciences and the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, China
| | - Xiaoxia Liu
- Department of Pharmacy, Guangxi Academy of Medical Sciences and the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, China.
| | - Limin Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Xiaoyu Chen
- Department of Pharmacy, Guangxi Academy of Medical Sciences and the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, China.
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12
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Jiang SL, Hu L, Wu M, Li L, Shi JH. Assessment on binding characteristics of ethiprole and a model protein bovine serum albumin (BSA) through various spectroscopic techniques integrated with computer simulation. J Biomol Struct Dyn 2023; 41:7862-7873. [PMID: 36152999 DOI: 10.1080/07391102.2022.2126398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 09/14/2022] [Indexed: 10/14/2022]
Abstract
To investigate the binding characteristics of pesticide ethiprole (ETP) with serum albumin is of great significance for pathological analysis of pesticide poisoning, gene mutation, and clinical detection. In present work, the binding characteristics of ETP with a model protein BSA has been estimated by means of multi-spectroscopic approaches integrated with computer simulation. The outcomes testified that the intrinsic fluorescence of BSA was mainly quenched by ETP in a static quenching mode and the stable ETP-BSA complex with the stoichiometry of 1:1 and the binding constant of 6.81 × 103 M-1 (298 K) was produced. The outcomes revealed that ETP combined preferentially to the subdomain IIA (Site I) of BSA and caused the decline in the content of α-helix of BSA and the enhancement in the hydrophobicity of environment centered on Trp residues. The outcomes of experimental and theoretical studies provide the sufficient evidence about the driving forces for the complexation of ETP with BSA, which included van der Waals forces (vdW), hydrogen bonding (H-bonding) interaction, and hydrophobicity. Simultaneously, the theoretical calculation results also confirmed the existence of the significant changes in the physicochemical natures of ETP including molecular conformation, dipole moment, frontier orbital energy, and the atomic charge distribution, which was a responsible for the complexation with BSA.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Shao-Liang Jiang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Lu Hu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Meng Wu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Li Li
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Jie-Hua Shi
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
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13
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Hu S, Xu M, Cui Z, Xiao Y, Liu C, Liu R, Zhang G. Probing the molecular mechanism of interaction between polystyrene nanoplastics and catalase by multispectroscopic techniques. Chem Biol Interact 2023; 382:110648. [PMID: 37495201 DOI: 10.1016/j.cbi.2023.110648] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/17/2023] [Accepted: 07/24/2023] [Indexed: 07/28/2023]
Abstract
Nanoplastics are emerging pollutants that pose a potential threat to the environment and organisms and are widely distributed in environmental samples and food chains. The accumulation of polystyrene nanoplastics (PS-NPs) in an organism can cause oxidative stress. Currently, toxicity studies of PS-NPs mainly focus on the individual and cellular levels, whereas few studies have been conducted on the molecular mechanisms of the interaction between PS-NPs and catalase (CAT). Based on this, CAT was chosen as the target receptor for molecular toxicity research to reveal the interaction mechanism at the molecular level between PS-NPs and CAT by using various spectroscopic means and enzyme activity detection methods. The results indicated that PS-NPs destroyed the secondary structure of CAT, causing its protein skeleton to loosen and unfold, increasing the content of α-helices, decreasing the content of β-sheets, and exposing the position of the heme group. After exposure to PS-NPs, the internal fluorophore of CAT underwent fluorescence sensitization, resulting in a micelle-like structure, which enhanced the hydrophobicity of aromatic amino acids but did not change their polarity. In addition, the aggregation state of CAT was altered upon binding to PS-NPs, and the volume was further increased. Finally, these structural changes led to a gradual decrease in CAT activity. This study presents a comprehensive assessment of the toxicity of PS-NPs at the molecular level, which can provide more experimental support for the study of the biotoxicological efficacy of PS-NPs.
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Affiliation(s)
- Shuncheng Hu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, PR China
| | - Mengchen Xu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, PR China.
| | - Zhaohao Cui
- Qingdao Ecological Environment Monitoring Center, Qingdao, 266003, PR China
| | - Yihua Xiao
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, PR China
| | - Changqing Liu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Guomin Zhang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, PR China
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14
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Cui Y, Sun Y, Yu H, Guo Y, Yao W, Xie Y, Yang F. Exploring the binding mechanism and adverse toxic effects of degradation metabolites of pyrethroid insecticides to human serum albumin: Multi-spectroscopy, calorimetric and molecular docking approaches. Food Chem Toxicol 2023; 179:113951. [PMID: 37479174 DOI: 10.1016/j.fct.2023.113951] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 06/12/2023] [Accepted: 07/17/2023] [Indexed: 07/23/2023]
Abstract
Pyrethroid insecticides (PIs), a class of structurally similar non-persistent organic pollutants, can be degraded and metabolized to more toxic, and longer half-life products. In this study, the binding interaction mechanisms between human serum albumin (HSA) and the main degradation metabolites of PIs, 3-phenoxybenzoic acid (3-PBA) and 4-fluoro-3-phenoxybenzoic acid (4-F-3-PBA), were studied by theoretical simulation and experimental verification. Steady state fluorescence spectra showed that the fluorescence quenching mechanism was static. According to the binding constant, 4-F-3-PBA (1.53 × 105 L mol-1) was bound more strongly to HSA than 3-PBA (1.42 × 105 L mol-1) in subdomain ⅡA (site I). It was found by isothermal titration calorimetry that the metabolites and HSA spontaneously combined mainly through hydrogen bond and van der Waals interaction. Ultraviolet absorption spectra and circular dichroism spectra showed that the metabolites caused slight changes in the microenvironment and conformation of HSA. The above results were proved by molecular docking. The toxicity properties of the metabolites were further analyzed by software, and 4-F-3-PBA was found to be more toxic than 3-PBA. Considering the high exposure level of these metabolites in food, the environment and human body, it is necessary to further explore the toxicity of PIs metabolites.
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Affiliation(s)
- Yiwen Cui
- State Key Laboratory of Food Science and Resources, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China
| | - Yingying Sun
- Research Institute, Centre Testing International Group Co., Ltd., Shenzhen, 518000, China
| | - Hang Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China
| | - Yahui Guo
- State Key Laboratory of Food Science and Resources, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China
| | - Weirong Yao
- State Key Laboratory of Food Science and Resources, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China
| | - Yunfei Xie
- State Key Laboratory of Food Science and Resources, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China.
| | - Fangwei Yang
- State Key Laboratory of Food Science and Resources, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China; School of Food and Health, Beijing Technology & Business University (BTBU), 33 Fucheng Road, Haidian District, Beijing, 100048, China.
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15
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Ma X, Kuang L, Wang X, Zhang Z, Chen C, Ding P, Chi B, Xu J, Tuo X. Investigation on the interaction of aromatic organophosphate flame retardants with human serum albumin via computer simulations, multispectroscopic techniques and cytotoxicity assay. Int J Biol Macromol 2023; 247:125741. [PMID: 37423437 DOI: 10.1016/j.ijbiomac.2023.125741] [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: 05/28/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
Organophosphate flame retardants (OPFRs) are newly emerging estrogenic environmental pollutants, which attracted widespread public interest owing to their potential threats to human. Here, the interaction between two typical aromatic OPFRs, TPHP/EHDPP and HSA was researched by different experiments. Experimental results indicated that TPHP/EHDPP can insert the site I of HSA and be encircled by several amino acid residues, Asp451, Glu292, Lys195, Trp214 and Arg218 played vital roles in this binding process. At 298 K, the Ka value of TPHP-HSA complex was 5.098 × 104 M-1, and the Ka value of EHDPP-HSA was 1.912 × 104 M-1. Except H-bonds and van der Waals forces, the π-electrons on the phenyl ring of aromatic-based OPFRs played a pivotal role in maintaining the stability of the complexes. The content alterations of HSA were observed in the present of TPHP/EHDPP. The IC50 values of TPHP and EHDPP were 157.9 μM and 31.14 μM to GC-2spd cells, respectively. And the existence of HSA has a regulatory effect on the reproductive toxicity of TPHP/EHDPP. In addition, the results of present work implied Ka values of OPFRs and HSA are possible to be a useful parameter for evaluating their relative toxicity.
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Affiliation(s)
- Xiulan Ma
- School of Pharmacy, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Lin Kuang
- School of Pharmacy, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Xiaowei Wang
- School of Pharmacy, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Zihang Zhang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Chaolan Chen
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Pei Ding
- School of Pharmacy, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Baozhu Chi
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Junying Xu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Xun Tuo
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China.
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16
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Zhang H, Cai R, Chen C, Gao L, Ding P, Dai L, Chi B. Impacts of Halogen Substitutions on Bisphenol A Compounds Interaction with Human Serum Albumin: Exploring from Spectroscopic Techniques and Computer Simulations. Int J Mol Sci 2023; 24:13281. [PMID: 37686087 PMCID: PMC10487517 DOI: 10.3390/ijms241713281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/19/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
Bisphenol A (BPA) is an endocrine-disrupting compound, and the binding mechanism of BPA with carrier proteins has drawn widespread attention. Halogen substitutions can significantly impact the properties of BPA, resulting in various effects for human health. Here, we selected tetrabromobisphenol A (TBBPA) and tetrachlorobisphenol A (TCBPA) to investigate the interaction between different halogen-substituted BPAs and human serum albumin (HSA). TBBPA/TCBPA spontaneously occupied site I and formed stable binary complexes with HSA. Compared to TCBPA, TBBPA has higher binding affinity to HSA. The effect of different halogen substituents on the negatively charged surface area of BPA was an important reason for the higher binding affinity of TBBPA to HSA compared to TCBPA. Hydrogen bonds and van der Waals forces were crucial in the TCBPA-HSA complex, while the main driving factor for the formation of the TBBPA-HSA complex was hydrophobic interactions. Moreover, the presence of TBBPA/TCBPA changed the secondary structure of HSA. Amino acid residues such as Lys199, Lys195, Phe211, Arg218, His242, Leu481, and Trp214 were found to play crucial roles in the binding process between BPA compounds and HSA. Furthermore, the presence of halogen substituents facilitated the binding of BPA compounds with HSA.
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Affiliation(s)
- Huan Zhang
- School of Life Sciences, Nanchang University, Nanchang 330031, China;
| | - Ruirui Cai
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; (R.C.); (C.C.); (L.G.); (L.D.)
| | - Chaolan Chen
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; (R.C.); (C.C.); (L.G.); (L.D.)
| | - Linna Gao
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; (R.C.); (C.C.); (L.G.); (L.D.)
| | - Pei Ding
- School of Pharmacy, Nanchang University, Nanchang 330031, China;
| | - Lulu Dai
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; (R.C.); (C.C.); (L.G.); (L.D.)
| | - Baozhu Chi
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; (R.C.); (C.C.); (L.G.); (L.D.)
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17
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Lavanya K, Babu PV, Bodapati ATS, Reddy RS, Madku SR, Sahoo BK. Binding of dicoumarol analog with DNA and its antioxidant studies: A biophysical insight by in-vitro and in-silico approaches. Int J Biol Macromol 2023:125301. [PMID: 37315662 DOI: 10.1016/j.ijbiomac.2023.125301] [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: 04/16/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/16/2023]
Abstract
DNA is the major target for a number of pharmaceutical drugs. The interaction of drug molecules with DNA plays a major role in pharmacokinetics and pharmacodynamics. Bis-coumarin derivatives have diverse biological properties. Here, we have explored the antioxidant activity of 3,3'-Carbonylbis (7-diethylamino coumarin) (CDC) using DPPH, H2O2, and superoxide scavenging studies followed by its binding mode in calf thymus-DNA (CT-DNA) using several biophysical methods including molecular docking. CDC exhibited comparable antioxidant activity to standard ascorbic acid. The UV-Visible and fluorescence spectral variations indicate the CDC-DNA complex formation. The binding constant in the range of 104 M-1 was obtained from spectroscopic studies at room temperature. The fluorescence quenching of CDC by CT-DNA suggested a quenching constant (KSV) of 103 to 104 M-1 order. Thermodynamic studies at 303, 308, and 318 K revealed the observed quenching as a dynamic process besides the spontaneity of the interaction with negative free energy change. Competitive binding studies with site markers like ethidium bromide, methylene blue, and Hoechst 33258 reflect CDC's groove mode of interaction. The result was complemented by DNA melting study, viscosity measurement, and KI quenching studies. The ionic strength effect was studied to interpret the electrostatic interaction and found its insignificant role in the binding. Molecular docking studies suggested the binding location of CDC within the minor groove of CT-DNA, complementing the experimental result.
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Affiliation(s)
- K Lavanya
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India
| | - Pratap Veeresh Babu
- Department of Pharmacology, Gokaraju Rangaraju College of Pharmacy, Bachupally, Hyderabad, Telangana 500090, India
| | - Anna Tanuja Safala Bodapati
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India; Chemistry Division, BS&H Department, BVRIT College of Engineering for Women, Hyderabad 500090, India
| | - Ragaiahgari Srinivas Reddy
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India; Department of Chemistry, B V Raju Institute of Technology (BVRIT), Narsapur 502313, India
| | - Shravya Rao Madku
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India; Department of Chemistry, St. Francis College for Women, Hyderabad 500016, India
| | - Bijaya Ketan Sahoo
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India.
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18
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Zhang Q, Ma Y, Liu H, Gu J, Sun X. Comparison of the Effects on Bovine Serum Albumin Induced by Different Forms of Vanadium. Biol Trace Elem Res 2023; 201:3088-3098. [PMID: 35915278 DOI: 10.1007/s12011-022-03373-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/26/2022] [Indexed: 11/02/2022]
Abstract
Various forms of vanadium coexist in vivo, and the behavior mechanism is different. An investigation of the separate and simultaneous binding of three vanadium forms with bovine serum albumin (BSA) was performed. VO(acac)2/NaVO3/VOSO4 bound to site I of BSA, and their binding constants were 4.26 × 105, 9.18 × 103, and 4.31 × 102 L mol-1 at 298 K, respectively. VO(acac)2 had the strongest binding ability to BSA and had the most influence on the secondary structure of BSA and the microenvironment of around amino acid residues. The effect of NaVO3 and VOSO4 coexistence on the binding of VO(acac)2 to BSA was therefore further investigated. Both NaVO3 and VOSO4 had an effect on the binding of VO(acac)2 and BSA, with NaVO3 having the most noticeable effect. NaVO3 interfered with the binding process of VO(acac)2 and BSA, increased the binding constant, and changed the binding forces between them. Competition and allosteric effect may be responsible for the change of binding process between VO(acac)2 and BSA in the presence of NaVO3/VOSO4.
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Affiliation(s)
- Qionghua Zhang
- College of Chemistry and Chemical Engineering, Bohai University, 19, Keji Rd., New Songshan District, Jinzhou, Liaoning Province, 121013, People's Republic of China
| | - Yanxuan Ma
- College of Chemistry and Chemical Engineering, Bohai University, 19, Keji Rd., New Songshan District, Jinzhou, Liaoning Province, 121013, People's Republic of China
| | - Hongrui Liu
- College of Chemistry and Chemical Engineering, Bohai University, 19, Keji Rd., New Songshan District, Jinzhou, Liaoning Province, 121013, People's Republic of China
| | - Jiali Gu
- College of Chemistry and Chemical Engineering, Bohai University, 19, Keji Rd., New Songshan District, Jinzhou, Liaoning Province, 121013, People's Republic of China.
| | - Xuekai Sun
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, People's Republic of China
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19
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Nagar N, Saxena H, Pathak A, Mishra A, Poluri KM. A review on structural mechanisms of protein-persistent organic pollutant (POP) interactions. CHEMOSPHERE 2023; 332:138877. [PMID: 37164191 DOI: 10.1016/j.chemosphere.2023.138877] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 04/20/2023] [Accepted: 05/06/2023] [Indexed: 05/12/2023]
Abstract
With the advent of the industrial revolution, the accumulation of persistent organic pollutants (POPs) in the environment has become ubiquitous. POPs are halogen-containing organic molecules that accumulate, and remain in the environment for a long time, thus causing toxic effects in living organisms. POPs exhibit a high affinity towards biological macromolecules such as nucleic acids, proteins and lipids, causing genotoxicity and impairment of homeostasis in living organisms. Proteins are essential members of the biological assembly, as they stipulate all necessary processes for the survival of an organism. Owing to their stereochemical features, POPs and their metabolites form energetically favourable complexes with proteins, as supported by biological and dose-dependent toxicological studies. Although individual studies have reported the biological aspects of protein-POP interactions, no comprehensive study summarizing the structural mechanisms, thermodynamics and kinetics of protein-POP complexes is available. The current review identifies and classifies protein-POP interaction according to the structural and functional basis of proteins into five major protein targets, including digestive and other enzymes, serum proteins, transcription factors, transporters, and G-protein coupled receptors. Further, analysis detailing the molecular interactions and structural mechanism evidenced that H-bonds, van der Waals, and hydrophobic interactions essentially mediate the formation of protein-POP complexes. Moreover, interaction of POPs alters the protein conformation through kinetic and thermodynamic processes like competitive inhibition and allostery to modulate the cellular signalling processes, resulting in various pathological conditions such as cancers and inflammations. In summary, the review provides a comprehensive insight into the critical structural/molecular aspects of protein-POP interactions.
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Affiliation(s)
- Nupur Nagar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Harshi Saxena
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Aakanksha Pathak
- Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Amit Mishra
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur, 342011, Rajasthan, India
| | - Krishna Mohan Poluri
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India; Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India.
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20
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Zhu M, Pang X, Wang K, Sun L, Wang Y, Hua R, Shi C, Yang X. Enantioselective effect of chiral prothioconazole on the conformation of bovine serum albumin. Int J Biol Macromol 2023; 240:124541. [PMID: 37086758 DOI: 10.1016/j.ijbiomac.2023.124541] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 04/24/2023]
Abstract
As a typical chiral triazole fungicide, the enantioselective toxicity of prothioconazole to environmental organisms is of increasing concern. Herein, the binding mechanism of chiral PTCs to BSA was investigated by multi-spectral technique and molecular docking. Fluorescence titration and fluorescence lifetime experiments fully established that quenching BSA fluorescence by chiral PTCs is static quenching and could spontaneously bind to BSA. Hydrophobic interactions dominate the binding process of chiral PTCs to BSA. Differently, although both chiral PTCs and BSA have a primary binding site, the difference in chiral isomerism leads to a stronger binding ability of S-PTC than R-PTC. Both configurations of PTC can change the conformation of BSA and induce changes in the microenvironment around its amino acid residues, and the effect of S-PTC is more significant. Overall, S-PTC exhibited a more substantial effect on BSA structure relative to R-PTC. That is, S-PTC may lead to more potent potential toxicological effects on environmental organisms. This study provides a comprehensive assessment of the environmental behavior of chiral pesticides and their potential toxicity to environmental organisms at the molecular level and provides a theoretical basis for the screening of highly effective and biologically less toxic enantiomers of chiral pesticides.
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Affiliation(s)
- Meiqing Zhu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
| | - Xiaohui Pang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Kangquan Wang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Long Sun
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Yi Wang
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China.
| | - Rimao Hua
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China
| | - Ce Shi
- College of Agronomy, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China
| | - Xiaofan Yang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
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21
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Wani TA, Zargar S. Molecular Spectroscopy Evidence of 1,3,5-Tris(4-carboxyphenyl)benzene Binding to DNA: Anticancer Potential along with the Comparative Binding Profile of Intercalation via Modeling Studies. Cells 2023; 12:cells12081120. [PMID: 37190029 DOI: 10.3390/cells12081120] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 05/17/2023] Open
Abstract
One of medicinal chemistry's top priorities is the discovery of new molecules with anticancer potential. Compounds that interact with DNA are an intriguing family of chemotherapeutic medications used to treat cancer. Studies in this area have uncovered a plethora of potential anticancer medicines, such as groove binding, alkylating, and intercalator compounds. The anticancer activity of DNA intercalators (molecules that intercalate between DNA base pairs) has drawn special interest. The current study investigated the promising anticancer drug 1,3,5-Tris(4-carboxyphenyl)benzene (H3BTB) against breast and cervical cancer cell lines. In addition, 1,3,5-Tris(4-carboxyphenyl)benzene binds to DNA by groove binding. The binding of H3BTB to DNA was found to be significant which unwinds the DNA helix. Considerable electrostatic and non-electrostatic contributions were present in the binding's free energy. The cytotoxic potential of H3BTB is effectively demonstrated by the computational study outcomes, which include molecular docking and molecular dynamics (MD) simulations. The minor groove binding for the H3BTB-DNA complex is supported by molecular docking research. This study will promote empirical investigation into the synthesis of metallic and non-metallic H3BTB derivatives and their potential use as bioactive molecules for the treatment of cancer.
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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
| | - Seema Zargar
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11451, Saudi Arabia
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22
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Tanuja Safala Bodapati A, Srinivas Reddy R, Lavanya K, Rao Madku S, Ketan Sahoo B. A comprehensive biophysical and theoretical study on the binding of dexlansoprazole with human serum albumin. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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23
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Xia H, Sun Q, Gan N, Ai P, Li H, Li Y. Unveiling the binding details and esterase-like activity effect of methyl yellow on human serum albumin: spectroscopic and simulation study. RSC Adv 2023; 13:8281-8290. [PMID: 36926008 PMCID: PMC10011880 DOI: 10.1039/d2ra07377c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 03/04/2023] [Indexed: 03/17/2023] Open
Abstract
The food sector uses methyl yellow (MY) extensively as a colorant. The primary transporter in vivo that influences MY absorption, metabolism, distribution, and excretion is human serum albumin (HSA). Exploring the binding process and looking at how HSA and MY work physiologically at the molecular level is therefore very important. Experiments using steady-state fluorescence and fluorescence lifetimes proved that HSA and MY's quenching mechanisms were static. The HSA-MY complex's binding constant was estimated using thermodynamic parameters to be around 104 M-1. The hydrophobic forces were a major factor in the binding process, as evidenced by the negative ΔG, positive ΔH, and ΔS, which suggested that this contact was spontaneous. Site tests showed that MY linked to HSA's site I. Circular dichroism and three-dimensional fluorescence analysis revealed that the 1.33% α-helix content dropped and the amino acid microenvironment altered. While HSA's protein surface hydrophobicity decreased when engaging MY, the binding of MY to HSA reduced in the presence of urea. The stability of the system was assessed using molecular modeling. Additionally, HSA's esterase-like activity decreased when MY was present, and Ibf/Phz affected the inhibition mechanism of MY on HSA. These findings offer a distinctive perspective for comprehending the structure and functioning of HSA and evaluating the safety of MY.
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Affiliation(s)
- Haobin Xia
- School of Chemical Engineering, Sichuan University Chengdu 610065 China
| | - Qiaomei Sun
- School of Chemical Engineering, Sichuan University Chengdu 610065 China
| | - Na Gan
- School of Chemical Engineering, Sichuan University Chengdu 610065 China
| | - Pu Ai
- School of Chemical Engineering, Sichuan University Chengdu 610065 China
| | - Hui Li
- School of Chemical Engineering, Sichuan University Chengdu 610065 China
| | - Yanfang Li
- School of Chemical Engineering, Sichuan University Chengdu 610065 China
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24
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Liang W, Zhang Z, Zhu Q, Han Z, Huang C, Liang X, Yang M. Molecular interactions between bovine serum albumin (BSA) and trihalophenol: Insights from spectroscopic, calorimetric and molecular modeling studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 287:122054. [PMID: 36334416 DOI: 10.1016/j.saa.2022.122054] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 10/13/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
The issue of disinfection byproducts (DBPs) in the water has received critical attention due to the health effects on humans. In the water environment, interactions between bovine serum albumins (BSA), the most abundant water-soluble protein, and DBPs unavoidably occur. In this study, comparative binding interactions of two aromatic DBPs - 2,4,6-trichlorophenol (TCP) and 2,4,6-tribromophenol (TBP) with BSA were investigated systematically utilizing fluorescence spectrometry, UV absorption spectrometry, isothermal titration calorimetry and molecular docking approach. The fluorescence quenching results indicated that TCP/TBP could quench the endogenous fluorescence of BSA through static quenching mechanisms, and TBP showed a more substantial quenching effect. The binding constants were determined for TCP-BSA (3.638 × 105 L/mol, 303 K) and TBP-BSA (6.394 × 105 L/mol, 303 K) complexes, with TBP showing higher binding affinity than TCP. The thermodynamic study and docking analysis suggested that hydrogen bonding and van der Waals forces were the primary interaction forces. Both of TCP and TBP were located in the subdomain IIIA of BSA, and TBP could form more stable complex than TCP. The results of the present study contributed valuable information on the environmental behaviors of halophenols in water environment from perspectives of binding with BSA.
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Affiliation(s)
- Wenjie Liang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Zhenxuan Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China; College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, 518060, PR China
| | - Qingyao Zhu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Zekun Han
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Cui Huang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Xiong Liang
- College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, 518060, PR China
| | - Mengting Yang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China.
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25
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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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26
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Lei Y, Zhang Z, Ma X, Cai R, Dai L, Guo Y, Tuo X. Deciphering the interaction of perampanel and calf thymus DNA: A multi-spectroscopic and computer modelling study. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Li W, Chen S, Hong X, Fang M, Zong W, Li X, Wang J. The molecular interaction of three haloacetic acids with bovine serum albumin and the underlying mechanisms. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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28
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Xiao Q, Tu X, Cao H, Luo H, Li B, Liu J, Liu Y, Huang S. Interaction thermodynamics investigation of bovine serum albumin with black phosphorus quantum dots via spectroscopic and molecular simulation techniques. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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29
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Exploring the HSA/DNA/lung cancer cells binding behavior of p-Synephrine, a naturally occurring phenyl ethanol amine with anti-adipogenic activity: multi spectroscopic, molecular dynamic and cellular approaches. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Zhu M, Pang X, Wan J, Xu X, Wei X, Hua R, Zhang X, Wang Y, Yang X. Potential toxic effects of sulfonamides antibiotics: Molecular modeling, multiple-spectroscopy techniques and density functional theory calculations. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 243:113979. [PMID: 35987082 DOI: 10.1016/j.ecoenv.2022.113979] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 07/25/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
Sulfonamide antibiotics (SAs) are widely used in medicine, animal husbandry and aquaculture, and excessive intake of SAs may pose potential toxicity to organisms. The toxicological mechanisms of two classical SAs, sulfamerazine (SMR) and sulfamethoxazole (SMT), were investigated by molecular docking, DFT and multi-spectroscopic techniques using HSA and BSA as model proteins. The quenching of HSA/BSA endogenous fluorescence by SMR was higher than that by SMT due to the stronger binding effect of the pyrimidine ring on HSA/BSA compared to the oxazole ring, and that result was consistent with that predicted by DFT calculations. Thermodynamic parameters show that the binding of SAs to HSA/BSA is an exothermic process that proceeds spontaneously (ΔG < 0). Marker competition experiments illustrate that the binding site of SMR/SMT on serum albumin is located in subdomain IIIA. The combination of SAs and HSA/BSA is mainly realized by hydrogen bond and hydrophobic interaction, and the concept is also supported by molecular modeling. The reduced α-helix content of HSA/BSA induced by SMR/SMT indicates a greater stretching of the protein α-helix structure of the SMR/SMT-HSA/BSA. The results could provide useful toxicological information on the hazards of SAs in response to growing concern that SAs may pose a toxic threat to organisms.
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Affiliation(s)
- Meiqing Zhu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China; Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China.
| | - Xiaohui Pang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Jie Wan
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Xiaoping Xu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Xueyu Wei
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Rimao Hua
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China
| | - Xiaoying Zhang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Yi Wang
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China; Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, CA 95616, USA
| | - Xiaofan Yang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
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31
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Rahman N, Khalil N. Effect of glycation of bovine serum albumin on the interaction with xanthine oxidase inhibitor allopurinol: Spectroscopic studies and molecular modeling. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Sehrawat H, Kumar N, Panchal S, Kumar L, Chandra R. Imperative persistent interaction analysis of anticancer noscapine-ionic liquid with calf thymus DNA. Int J Biol Macromol 2022; 220:415-425. [PMID: 35985396 DOI: 10.1016/j.ijbiomac.2022.08.106] [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: 04/21/2022] [Revised: 08/10/2022] [Accepted: 08/15/2022] [Indexed: 11/25/2022]
Abstract
In this study, we have shown the interaction between opium poppy alkaloid noscapine-based ionic liquid [Pip-Nos]OTf and ct-DNA using UV-visible absorption spectroscopy, fluorescence spectroscopy, CD, and computational studies. The absorption spectra showed a hypochromic shift with no shift in the absorption maxima suggesting groove or electrostatic binding. Fluorescence spectra showed an enhancement in fluorescence emission suggesting that the probable mode of binding should be groove binding. Ethidium bromide (EB) competitive and Ionic strength study showed the absence of intercalative and electrostatic modes of interaction. Further, CD analysis of ct-DNA suggested a groove binding mode of interaction of [Pip-Nos]OTf with ct-DNA. [Pip-Nos]OTf displayed a strong binding with the target ct-DNA with a molecular docking score of -41.47 kJ/mol with all 3D coordinates and full conformation. Also, molecular binding contact analyses depicted the stable binding of drug and ct-DNA with potential hydrogen bonds and hydrophobic interactions. The structural superimposition dynamics analysis showed the stable binding of [Pip-Nos]OTf with the ct-DNA model through RMSD statistics. Moreover, the ligand interaction calculations revealed the involvement of large binding energy along with a high static number of molecular forces including the hydrogen bonds and hydrophobic interactions in their complexation. These significant results report the potency of [Pip-Nos]OTf and its important futuristic role in cancer therapeutics.
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Affiliation(s)
- Hitesh Sehrawat
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India.
| | - Neeraj Kumar
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India; Northwestern University, Feinberg School of Medicine, Department of Neurology, Chicago, IL 60611, USA
| | - Sagar Panchal
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Loveneesh Kumar
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Ramesh Chandra
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India; Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India; Institute of Nano Medical Sciences (INMS), University of Delhi, Delhi 110007, India.
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33
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Inhibition mechanism of baicalein against alcohol dehydrogenase in vitro via biological techniques, spectroscopy and computer simulation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Bodapati ATS, Sahoo BK, Reddy RS, Lavanya K, Madku SR. Deciphering the nature of binding of dexlansoprazole with DNA: Biophysical and docking approaches. Int J Biol Macromol 2022; 217:1027-1036. [PMID: 35907469 DOI: 10.1016/j.ijbiomac.2022.07.177] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 11/30/2022]
Abstract
Drugs, in general, exhibit their pharmacological activity in binding with intracellular targets. Numerous anticancer and antibacterial drugs target DNA as one of their primary intracellular targets. Dexlansoprazole (DLP) is a heterocyclic compound containing benzimidazole moiety and a proton pump inhibitor used to treat gastroesophageal reflux disease. The interaction of dexlansoprazole with calf thymus DNA (ct-DNA) has been studied using biophysical methods. The UV-Visible studies revealed a binding constant of 2.15 ± 0.3 × 104 M-1 which is close to the value of 2.44 ± 0.3 × 104 M-1 obtained from the fluorescence studies. Competitive displacement studies using the fluorescence spectroscopic method with ethidium bromide and Hoechst as DNA markers suggested the groove binding mode of DLP in ct-DNA. The groove binding mode of DLP in ct-DNA was complemented by the results of viscosity and DNA melting studies. Further studies on the effect of ionic strength and potassium iodide on DLP binding with ct-DNA supported the observed binding mode. Circular dichroism studies reflected no significant conformational variation in ct-DNA after the interaction. The binding mode obtained from the experimental studies was corroborated by the molecular docking studies that showed the position of DLP in the minor groove of ct-DNA along with the receptor interface restudies involved in the interaction.
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Affiliation(s)
- Anna Tanuja Safala Bodapati
- Chemistry Division, BS&H Department, BVRIT Hyderabad, College of Engineering for Women, Hyderabad 500090, India; Department of Chemistry, GITAM Deemed to be University, Hyderabad Campus 502329, India
| | - Bijaya Ketan Sahoo
- Department of Chemistry, GITAM Deemed to be University, Hyderabad Campus 502329, India.
| | - Ragaiahgari Srinivas Reddy
- Department of Chemistry, GITAM Deemed to be University, Hyderabad Campus 502329, India; Department of Chemistry, B V Raju Institute of Technology (BVRIT), Narsapur 502313, India
| | - Kandikonda Lavanya
- Department of Chemistry, GITAM Deemed to be University, Hyderabad Campus 502329, India; Department of Chemistry, Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad 500090, India
| | - Shravya Rao Madku
- Department of Chemistry, GITAM Deemed to be University, Hyderabad Campus 502329, India; Department of Chemistry, St. Francis College for Women, Hyderabad 500016, India
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35
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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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36
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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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37
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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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38
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Khayyat AIA, Zargar S, Wani TA, Rehman MU, Khan AA. Association Mechanism and Conformational Changes in Trypsin on Its Interaction with Atrazine: A Multi- Spectroscopic and Biochemical Study with Computational Approach. Int J Mol Sci 2022; 23:ijms23105636. [PMID: 35628445 PMCID: PMC9146720 DOI: 10.3390/ijms23105636] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/15/2022] [Accepted: 05/16/2022] [Indexed: 02/01/2023] Open
Abstract
Atrazine (ATR) is a herbicide globally used to eliminate undesired weeds. Herbicide usage leads to various adverse effects on human health and the environment. The primary source of herbicides in humans is the food laced with the herbicides. The ATR binding to trypsin (TYP) was investigated in this study to explore its binding potential and toxicity. In vitro interaction of ATR with TYP was studied using multi-spectroscopic methods, molecular docking, and enzyme kinetics to explore the mechanism of binding for the TYP-ATR system. The TYP-ATR complex revealed binding constants (103 M-1), suggesting a moderate binding. The free energy for the TYP-ATR complexes was negative, suggesting a spontaneous interaction. Thermodynamic parameters enthalpy (ΔH) and entropy (ΔS) obtained positive values for the TYP-ATR system suggesting hydrophobic interactions in the binding process. Micro-environmental and conformational changes in TYP molecules were induced on interaction with ATR. Reduced catalytic activity of TYP was observed after interaction with ATR owing to the changes in the secondary structure of the TYP.
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Affiliation(s)
- Arwa Ishaq A. Khayyat
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Seema Zargar
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
- Correspondence: (S.Z.); (T.A.W.)
| | - Tanveer A. Wani
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
- Correspondence: (S.Z.); (T.A.W.)
| | - Muneeb U. Rehman
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Azmat Ali Khan
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
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39
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Exploring binding interaction of baricitinib with bovine serum albumin (BSA): multi-spectroscopic approaches combined with theoretical calculation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118831] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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40
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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: 26] [Impact Index Per Article: 13.0] [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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Wani TA, Bakheit AH, Zargar S, Alamery S. Mechanistic competitive binding interaction study between olmutinib and colchicine with model transport protein using spectroscopic and computer simulation approaches. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113794] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Goswami S, Ghosh R, Prasanthan P, Kishore N. Mode of interaction of altretamine with calf thymus DNA: biophysical insights. J Biomol Struct Dyn 2022; 41:3728-3740. [PMID: 35343872 DOI: 10.1080/07391102.2022.2054472] [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
Insights into drug-DNA interactions have importance in medicinal chemistry as it has a major role in the evolution of new therapeutic drugs. Therefore, binding studies of small molecules with DNA are of significant interest. Spectroscopy, coupled with measurements of viscosity and molecular docking studies were employed to obtain mechanistic insights into the binding of altretamine with calf thymus DNA (CT-DNA). The UV-visible spectroscopic measurements study confirmed altretamine-CT-DNA complex formation with affinity constant ([15.68 ± 0.04] × 103 M-1), a value associated with groove binding phenomenon. The associated thermodynamic signatures suggest enthalpically driven interactions. The values of standard molar free energy change (ΔGmo) -(23.93 ± 0.23) kJ mol-1, enthalpy change (ΔvHHmo) -(50.84 ± 0.19) kJ mol-1 and entropy change (ΔSmo) -(90.29 ± 0.12) JK-1 mol-1 indicate the binding is thermodynamically favorable and an important role of the hydrogen bonds and Van der Waals interactions in the binding of altretamine with CT-DNA. Circular dichroism spectroscopy indicated insignificant conformational changes in the DNA backbone upon interaction with altretamine suggesting no distortion and/or unstacking of the base pairs in the DNA helix. UV-melting study suggested that the thermal stability of the DNA backbone is not affected by the binding of the drug. Competitive displacement assays with ethidium bromide, Hoechst-33258 and DAPI established the binding of altretamine with CT-DNA in the minor groove. The mode of binding was further confirmed by viscosity and molecular docking studies. Molecular docking further ascertained binding of altretamine in the minor groove of the CT-DNA, preferably with the A-T rich sequences.
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Affiliation(s)
- Sathi Goswami
- Department of Chemistry, Indian Institute of Technology Bombay, Maharashtra, India
| | - Ritutama Ghosh
- Department of Chemistry, Indian Institute of Technology Bombay, Maharashtra, India
| | - Pooja Prasanthan
- Department of Chemistry, Indian Institute of Technology Bombay, Maharashtra, India
| | - Nand Kishore
- Department of Chemistry, Indian Institute of Technology Bombay, Maharashtra, India
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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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Lin L, Xu X, Song S, Xu L, Zhu Y, Kuang H, Liu L, Xu C. Immunological quantitative detection of dicofol in medicinal materials. Analyst 2022; 147:3478-3485. [PMID: 35766970 DOI: 10.1039/d2an00462c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A quantitative immunochromatographic strip assay was developed for the rapid detection of dicofol in medicinal materials.
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Affiliation(s)
- Lu Lin
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Xinxin Xu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Shanshan Song
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Liguang Xu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Yingyue Zhu
- School of Biotechnology and Food Engineering, Changshu Institute of Technology, Changshu, Jiangsu 215500, China
| | - Hua Kuang
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Liqiang Liu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Chuanlai Xu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
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