1
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Duan X, Liu W, Liang J, Jing T, Liu Y, Wang X, Liu B. Modulation of protein-ligand interactions in the presence of ZIF-8: Spectroscopy and molecular dynamics simulation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 312:124053. [PMID: 38422930 DOI: 10.1016/j.saa.2024.124053] [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: 07/23/2023] [Revised: 12/17/2023] [Accepted: 02/17/2024] [Indexed: 03/02/2024]
Abstract
In this paper, we investigated the protein-ligand interactions in the presence of ZIF-8 using multi-spectroscopic approaches and molecular dynamics simulation. Fluorescence experiments and molecular docking results showed that ZIF-8 did not change the type of quenching and interaction force between ciprofloxacin (CIP) and human serum albumin (HSA), but made the binding constant of HSA-CIP to be smaller, suggesting that ZIF-8 maybe accelerate the dissociation of CIP from HSA-CIP complex. Moreover, the effect of ZIF-8 on the physiological function of HSA was explored. Multi-spectroscopic methods revealed that ZIF-8 did not significantly alter the microenvironment of amino acid groups, but cause a slight decrease in the content of α-helical conformation, and a sparse and flexible structure of the protein backbone. These peculiarities might lead to the diminution of HSA's ability to control drugs. In short, ZIF-8 might enhance drug effect due to affecting the binding of drugs to proteins. However, the present study is only a preliminary investigation of the suitability of ZIF-8 as a drug carrier in vitro, and subsequent in vivo experimental studies will be required to further confirm the idea.
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Affiliation(s)
- Xinyue Duan
- School of Pharmaceutical Sciences, Liaoning University, Shenyang 110036, China
| | - Wei Liu
- School of Pharmaceutical Sciences, Liaoning University, Shenyang 110036, China
| | - Jiaqi Liang
- School of Pharmaceutical Sciences, Liaoning University, Shenyang 110036, China
| | - Tingyu Jing
- School of Pharmaceutical Sciences, Liaoning University, Shenyang 110036, China
| | - Yu Liu
- School of Pharmaceutical Sciences, Liaoning University, Shenyang 110036, China
| | - Xiao Wang
- Department of Gastroenterology, Central Hospital Affiliated to Shenyang Medical College, Shenyang 110075, China.
| | - Bin Liu
- School of Pharmaceutical Sciences, Liaoning University, Shenyang 110036, China.
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2
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Gupta R, Paul K. Investigating the Serum Albumin Binding Behavior of Naphthalimide Based Fluorophore Conjugates: Spectroscopic and Molecular Docking Approach. ChemMedChem 2024:e202400114. [PMID: 38676621 DOI: 10.1002/cmdc.202400114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 04/29/2024]
Abstract
In the present study, naphthalimide-pyrazole-benzothiazole based fluorescent analogs were synthesized by substituting different primary and secondary amines on the naphthalimide nucleus and were evaluated for their sensitivity and selectivity towards serum albumin. Among various synthesized analogues compound 25 showed the most significant change with serum albumin and was further studied for selective detection and mode of interaction with serum albumin. Here, we compared the binding interaction of fluorescent probe 25 for variation/detection of two 76 % structurally resembling proteins HSA and BSA, by spectroscopic experiments. The compound shows more selectivity for HSA and BSA with a higher binding constant and evident visible change in the emission spectra of two serum albumins among different bioanalytes. The mode of interaction of 25 with human serum albumin and bovine serum albumin was investigated by FT-IR, circular dichroism, and DLS techniques to find out the change in the microenvironment and variation in the structure of serum albumin proteins. Higher binding affinity and specific selectivity of 25 with a limit of detection of 0.69 μM and 1.4 μM towards HSA and BSA compared to other bioanalytes make it a significant fluorescent probe for quantitatively detecting serum albumins at the very early stage of many fatal diseases.
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Affiliation(s)
- Rohini Gupta
- Department of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147001, India
| | - Kamaldeep Paul
- Department of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147001, India
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3
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Shahabadi N, Ghaffari L, Mardani Z, Hadidi S. Analysis of the binding mechanism for a water-soluble Pd(II) complex containing β-amino alcohols with HSA applying experimental and computational methods. J Biomol Struct Dyn 2024; 42:3790-3801. [PMID: 37243704 DOI: 10.1080/07391102.2023.2216281] [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: 09/07/2022] [Accepted: 05/12/2023] [Indexed: 05/29/2023]
Abstract
In the study ahead, the binding interactions of the [Pd (HEAC) Cl2] complex with human serum albumin (HSA) protein have been assayed in vitro (pH= 7.40) utilizing computational and experimental procedures. The mentioned complex was synthesized as a water-soluble complex from {2-((2-((2-hydroxyethyl)amino)ethyl)amino) cyclohexanol} ligand = HEAC. The results of electronic absorption and circular dichroism investigations illustrated that the hydrophobicity of the Tryptophan microenvironment in HSA undergoes the changes by binding to the Pd(II) complex without substantial perturbations on the protein secondary structure. The fluorescence emission spectroscopy analysis revealed that with rising temperature, the quenching constant (Ksv) in the Stern-Volmer's relation decreases; so, it can be said that the interaction process is along with a static quenching mechanism. The values of 2.88 × 105 M-1, and 1.26 represent the binding constant (Kb) and the number of the binding sites (n), respectively. The Job graph showed the maximum point at χ = 0.5, which means organizing a new set with 1:1 stoichiometry. Thermodynamic profile (ΔH < 0, ΔS < 0, and ΔG < 0) has affirmed that van der Waals forces and hydrogen bonds have a basic function in the Pd(II) complex-albumin bindings. The ligand-competitive displacement studies utilizing warfarin and ibuprofen have represented that Pd(II) complex interacts with albumin by site II (subdomain IIIA). The computational molecular docking theory approved the results of the site-competitive tests; also, it indicated the existence of hydrogen bonds and van der Waals forces in Pd(II) complex-albumin interactions.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Nahid Shahabadi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
| | - Lida Ghaffari
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
| | - Zahra Mardani
- Department of Inorganic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran
| | - Saba Hadidi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
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4
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Mohanty S, Mishra SS, Kuldeep, Maharana J, Subuddhi U. Insight into the Effect of Submicellar Concentrations of Sodium Deoxycholate on the Structure, Stability, and Activity of Bovine and Human Serum Albumin: An Interesting Comparison between Single and Double Tryptophan Proteins. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:5228-5244. [PMID: 38413419 DOI: 10.1021/acs.langmuir.3c03541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
The progressive escalation in the applications of bile salts in diverse fields has triggered research on their interaction with various biological macromolecules, especially with proteins. A proper understanding of the interaction process of bile salts, particularly in the lower concentrations range, with the serum albumin seems important since the normal serum concentration of bile salts is approximately in the micromolar range. The current study deals with a comprehensive and comparative analysis of the interaction of submicellar concentrations of sodium deoxycholate (NaDC) with two homologous transport proteins: bovine serum albumin (BSA) and human serum albumin (HSA). HSA and BSA with one and two tryptophans, respectively, provide the opportunity for an interesting comparison of tryptophan fluorescence behavior on interaction with NaDC. The study suggests a sequential interaction of NaDC in three discrete stages with the two proteins. A detailed study using warfarin and ibuprofen as site markers provides information about the sites of interaction, which is further confirmed by inclusive molecular dynamics simulation analysis. Moreover, the comparison of the thermodynamics and stability of the NaDC-serum albumin complexes confirms the stronger interaction of NaDC with BSA as compared to that with HSA. The differential interaction between the bile salt and the two serum albumins is further established from the difference in the extent of decrease in the esterase-like activity assay of the proteins in the presence of NaDC. Therefore, the present study provides important insight into the effect of submicellar concentrations of NaDC on the structure, stability, and activity of the two homologous serum albumins and thus can contribute not only to the general understanding of the complex nature of serum albumin-bile salt interactions but also to the design of more effective pharmaceutical formulations in the field of drug delivery and biomedical research.
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Affiliation(s)
- Subhrajit Mohanty
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Smruti Snigdha Mishra
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Kuldeep
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Jitendra Maharana
- Distributed Information Centre, Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat 785013, Assam, India
| | - Usharani Subuddhi
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
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5
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Asngari NJM, Bakar KA, Feroz SR, Razak FA, Halim AAA. Interaction mechanism of a cysteine protease inhibitor, odanacatib, with human serum albumin: In vitro and bioinformatics studies. Biophys Chem 2024; 305:107140. [PMID: 38118338 DOI: 10.1016/j.bpc.2023.107140] [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: 07/29/2023] [Revised: 10/04/2023] [Accepted: 11/07/2023] [Indexed: 12/22/2023]
Abstract
Odanacatib (ODN) is a selective cathepsin K inhibitor that acts as an anti-resorptive agent to treat osteoporosis. ODN is also found effective in reducing the effect of severe periodontitis. The interaction between ODN and human serum albumin (HSA) was investigated using spectroscopic, microscopic, and in silico approaches to characterize their binding. The fluorescence intensity of HSA increased upon the addition of increasing concentrations of ODN accompanied by blueshift in the fluorescence spectrum, which suggested hydrophobic formation around the microenvironment of the fluorophores upon ODN binding. A moderate binding affinity was obtained for ODN-HSA binding, with binding constant (Ka) values of ∼104 M-1. Circular dichroism results suggested that the overall secondary and tertiary structures of HSA were both only slightly altered upon ODN binding. The surface morphology of HSA was also affected upon ODN binding, showing aggregate formation. Drug displacement and molecular docking results revealed that ODN preferably binds to site III in subdomain IB of HSA, while molecular dynamics simulations indicated formation of a stable protein complex when site III was occupied by ODN. The ODN-HSA complex was mainly stabilized by a combination of hydrogen bonding, hydrophobic interactions, and van der Waals forces. These findings provide additional information to understand the interaction mechanism of ODN in blood circulation and may help in future improvements on the adverse effects of ODN.
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Affiliation(s)
- Nurul Jannah Mohd Asngari
- Department of Oral & Craniofacial Sciences, Faculty of Dentistry, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Khairul Azreena Bakar
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - Shevin Rizal Feroz
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - Fathilah Abdul Razak
- Department of Oral & Craniofacial Sciences, Faculty of Dentistry, Universiti Malaya, 50603 Kuala Lumpur, Malaysia; Adjunct Professor, Faculty of Dentistry, Universitas Padjadjaran, Bandung, Indonesia
| | - Adyani Azizah Abd Halim
- Department of Oral & Craniofacial Sciences, Faculty of Dentistry, Universiti Malaya, 50603 Kuala Lumpur, Malaysia.
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6
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Saraswat J, Firoz A, Kamli MR, Patel R. Improved Antibacterial Activity of Peptide Nisin with Pyrrole-Based Ionic Liquids Having Bis(trifluoromethylsulfonyl)imide as a Counterion: A Synergistic Approach to Combat Bacterial Infections. ACS OMEGA 2024; 9:2758-2769. [PMID: 38250392 PMCID: PMC10795159 DOI: 10.1021/acsomega.3c07824] [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: 10/08/2023] [Revised: 12/02/2023] [Accepted: 12/12/2023] [Indexed: 01/23/2024]
Abstract
Bacterial resistance against antimicrobial drugs is a forthcoming threat to the prevention and treatment of developing bacterial infections. Hence, the development of new antimicrobial therapy or therapeutic drugs is desperately needed. A combination of antibiotics exhibits synergistic antibacterial effects. As the combination approach of antibiotics has always shown better results against pathogens compared to monotherapy with an antibiotic, we focused on creating a new combination that may reduce the chances of strains attaining resistance, consequently lowering the toxicity factor associated with the consumption of high amounts of antibiotics. Nisin, a food preservative and potential antibiotic, shows antibacterial activity against Gram-positive strains. Since the past decade, ionic liquids (ILs) have proven to be an important class of potential antibacterial agents. In our study, we studied the effect of pyrrolidinium-based ILs and arrived at a noncovalent conjugate formed by combining nisin with ILs. The conjugates were tested against a couple of clinically relevant microorganisms, namely, Escherichia coli and Staphylococcus aureus. We reached a novel discovery that the combination of sodium/iodide symporter (NIS) and IL exhibited inhibitory effects against Gram-negative bacteria, which was not observed with NIS alone. The results showed remarkable improvement in the minimum inhibitory concentration (MIC) value of NIS in the presence of ILs targeted against both microorganisms. Further, flow cytometry and confocal microscopy results revealed the membrane disruption efficiency of the best combination obtained, leading to cell death. Additionally, the complexation of nisin and ILs was studied using various techniques, such as surface tension, dynamic light scattering, absorption spectroscopy, and molecular docking.
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Affiliation(s)
- Juhi Saraswat
- Biophysical
Chemistry Laboratory, Centre for Interdisciplinary Research in Basic
Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Ahmad Firoz
- Department
of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Princess
Dr. Najla Bint Saud Al-Saud Centre for Excellence Research in Biotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Majid Rasool Kamli
- Department
of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Rajan Patel
- Biophysical
Chemistry Laboratory, Centre for Interdisciplinary Research in Basic
Sciences, Jamia Millia Islamia, New Delhi 110025, India
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7
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Lan J, Wang Y, Li H, Guan R, Zhao Z, Bao Y, Du X, Hollert H, Zhao X. Binding divergence of polystyrene nanoparticles with serum albumin caused by surface functionalization. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 903:166578. [PMID: 37634731 DOI: 10.1016/j.scitotenv.2023.166578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/17/2023] [Accepted: 08/24/2023] [Indexed: 08/29/2023]
Abstract
Using a combination of spectroscopy, we devised an integrated structural strategy to comprehensively profile the molecular details of the impact of differently functionalized (plain, aminated, and carboxylated) polystyrene nanoparticles (PSNPs) on human serum albumin (HSA). The binding isotherms obtained from fluorescence and UV-vis absorption measurements demonstrate that surface functionalization can distinguish the interaction of PSNPs with HSA. Three-dimensional fluorescence and circular dichroism analysis of the effect of interaction with PSNPs on the native conformation and secondary structures of the protein reveals a diminution in the skeleton structure of HSA induced by the PSNPs. In accordance with this, it is discovered that the esterase activity of protein-PSNPs aggregates is diminished compared to that of the native protein. The carboxylated PSNPs exhibited the strongest protein binding and perturbation effects compared to other particles. Plain PSNPs exhibited significant hydrophobic interaction properties, as evidenced by spectral blue shifts and a diminished Stokes shift in the three-dimensional fluorescence assay. Our results exclusively highlight that the hydrophobic and surface charge characteristics of PSNPs govern the extent of interaction with the protein, which is beneficial to understanding microplastic toxicology.
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Affiliation(s)
- Jing Lan
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - 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
| | - Rui Guan
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Zongshan Zhao
- 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
- Department of Orthopedics, The Affiliated Hospital of Qingdao University, Qingdao 266000, 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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8
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Siddiquee A, Parray Z, Anand A, Tasneem S, Hasan N, Alamier WM, Ageeli AA, Wani FA, Singh P, Patel R. Binding Study of Antibacterial Drug Ciprofloxacin with Imidazolium-Based Ionic Liquids Having Different Halide Anions: A Spectroscopic and Density Functional Theory Analysis. ACS OMEGA 2023; 8:42699-42710. [PMID: 38024745 PMCID: PMC10653064 DOI: 10.1021/acsomega.3c05100] [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] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023]
Abstract
Herein, we have shown the interaction of an antibiotic drug ciprofloxacin (CIP) with three surface-active ionic liquids (ILs), having the same cation and different anions, namely, 1-decyl-3-methylimidazoliumtetrafluoroborate [C10mim][BF4], 1-decyl-3-methylimidazolium bromide [C10mim][Br], and 1-decyl-3-methylimidazolium chloride [C10mim][Cl]. This study has been performed by exploiting various spectroscopic techniques such as steady-state fluorescence, time-resolved fluorescence, and UV-visible spectroscopy. The fluorescence emission study of CIP with ILs was performed at various concentrations of all the three ILs. The emission spectra of CIP decreased in the presence of ILs, suggesting complex formation between CIP-IL. The effect of different concentrations of ILs on the emission spectra of CIP was exploited in terms of quenching and binding parameters. Further, fluorescence emission study was validated by the time-resolved fluorescence technique by measuring the average lifetime (τavg) of CIP in the presence of all the three ILs. The τavg value of the drug changed with the addition of ILs, which suggests complex formation between the drug and ILs. This complex formation was also confirmed by UV-visible spectroscopy results of CIP with all the three ILs. Further, for evaluating the thermodynamic parameters of the CIP-IL interactions, isothermal titration calorimetry (ITC) was performed. The ITC experiment yielded the thermodynamic parameters, ΔH (change in the enthalpy of association), ΔG (Gibbs free energy change), ΔS (entropy change), and binding constant (Ka). The binding parameters driven by ITC revealed that CIP-IL interactions are spontaneous in nature and enthalpy-driven, involving hydrophobic forces. Further, the classical density functional theory (DFT) calculations were performed, which provided deep insight for CIP-IL complex formation.
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Affiliation(s)
- Abrar Siddiquee
- Biophysical
Chemistry Laboratory, Centre for Interdisciplinary Research in Basic
Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Zahoor Parray
- Department
of Chemistry, IIT Delhi, Hauz Khaus Campus, New Delhi 110016, India
| | - Aashima Anand
- Biophysical
Chemistry Laboratory, Centre for Interdisciplinary Research in Basic
Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Shadma Tasneem
- Department
of Chemistry, Faculty of Science, Jazan
University, P.O. Box 2097, Jazan 45142, Saudi Arabia
| | - Nazim Hasan
- Department
of Chemistry, Faculty of Science, Jazan
University, P.O. Box 2097, Jazan 45142, Saudi Arabia
| | - Waleed M. Alamier
- Department
of Chemistry, Faculty of Science, Jazan
University, P.O. Box 2097, Jazan 45142, Saudi Arabia
| | - Abeer A. Ageeli
- Department
of Chemistry, Faculty of Science, Jazan
University, P.O. Box 2097, Jazan 45142, Saudi Arabia
| | - Farooq Ahmad Wani
- Biophysical
Chemistry Laboratory, Centre for Interdisciplinary Research in Basic
Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Prashant Singh
- Department
of Chemistry, ARSD College, Delhi University, New Delhi 110021, India
| | - Rajan Patel
- Biophysical
Chemistry Laboratory, Centre for Interdisciplinary Research in Basic
Sciences, Jamia Millia Islamia, New Delhi 110025, India
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9
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Mahanthappa M, Savanur MA, Ramu J, Tatagar A. Elucidating the significance of molecular interaction between sulphur doped zinc oxide nanoparticles and serum albumin using multispectroscopic approach. J Mol Recognit 2023; 36:e3054. [PMID: 37696651 DOI: 10.1002/jmr.3054] [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: 04/06/2023] [Revised: 07/14/2023] [Accepted: 08/08/2023] [Indexed: 09/13/2023]
Abstract
Ingenious nanomaterials with improved biocompatibility and multifunctional properties are gaining vital significance in biomedical applications, including advanced drug delivery and nanotheranostics. In a biological system, these nanoparticles interact with serum proteins forming a dynamic corona that affects their biological or toxicological properties producing undesirable effects. Thus, the current study focuses on the synthesis of sulphur-doped zinc oxide nanoparticles (ZnO/S NPs) and characterizing their mechanism of interaction with serum proteins using multispectroscopic approach. ZnO/S NPs were synthesized by employing a co-precipitation approach and characterized using various analytical techniques. The results of interaction studies demonstrated that ZnO/S NPs interact with serum albumins via the static quenching process. Analysis of thermodynamic parameters (ΔG, ΔH and ΔS) revealed that the binding process is spontaneous, exothermic and van der Waals force or hydrogen bonding plays a major role. The interaction of ZnO/S NPs with tyrosine residue in bovine serum albumin was established by synchronous fluorescence spectroscopy. In addition, the results of UV-visible, circular dichroism, Fourier transform infrared, Forster's resonance energy transfer theory and dynamic light scattering spectroscopic studies revealed that the ZnO/S NPs interact with albumin by inducing the conformational changes in secondary structure and reducing the α-helix content.
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Affiliation(s)
- Mallappa Mahanthappa
- Department of Chemistry, School of Applied Sciences, REVA University, Bangalore, India
| | - Mohammed Azharuddin Savanur
- Department of Immunology, MIGAL-Galilee Research Institute, Kiryat Shmona, Israel
- Department of Biochemistry, Indian Institute of Science, Bangalore, India
| | - Jagadish Ramu
- Department of Chemistry, Maharani's Science College for Women, Mysore, India
- Department of Chemistry, Government First Grade College, Chikkaballapur, India
| | - Asma Tatagar
- Department of Chemistry, SDM College of Engineering and Technology, Dharwad, India
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10
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Göktürk T, Sakallı Çetin E, Hökelek T, Pekel H, Şensoy Ö, Aksu EN, Güp R. Synthesis, Structural Investigations, DNA/BSA Interactions, Molecular Docking Studies, and Anticancer Activity of a New 1,4-Disubstituted 1,2,3-Triazole Derivative. ACS OMEGA 2023; 8:31839-31856. [PMID: 37692230 PMCID: PMC10483525 DOI: 10.1021/acsomega.3c03355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 08/09/2023] [Indexed: 09/12/2023]
Abstract
We report herein a new 1,2,3-triazole derivative, namely, 4-((1-(3,4-dichlorophenyl)-1H-1,2,3-triazol-4-yl)methoxy)-2-hydroxybenzaldehyde, which was synthesized by copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC). The structure of the compound was analyzed using Fourier transform infrared spectroscopy (FTIR), 1H NMR, 13C NMR, UV-vis, and elemental analyses. Moreover, X-ray crystallography studies demonstrated that the compound adapted a monoclinic crystal system with the P21/c space group. The dominant interactions formed in the crystal packing were found to be hydrogen bonding and van der Waals interactions according to Hirshfeld surface (HS) analysis. The volume of the crystal voids and the percentage of free spaces in the unit cell were calculated as 152.10 Å3 and 9.80%, respectively. The evaluation of energy frameworks showed that stabilization of the compound was dominated by dispersion energy contributions. Both in vitro and in silico investigations on the DNA/bovine serum albumin (BSA) binding activity of the compound showed that the CT-DNA binding activity of the compound was mediated via intercalation and BSA binding activity was mediated via both polar and hydrophobic interactions. The anticancer activity of the compound was also tested by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay using human cell lines including MDA-MB-231, LNCaP, Caco-2, and HEK-293. The compound exhibited more cytotoxic activity than cisplatin and etoposide on Caco-2 cancer cell lines with an IC50 value of 16.63 ± 0.27 μM after 48 h. Annexin V suggests the induction of cell death by apoptosis. Compound 3 significantly increased the loss of mitochondrial membrane potential (MMP) levels in Caco-2 cells, and the reactive oxygen species (ROS) assay proved that compound 3 could induce apoptosis by ROS generation.
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Affiliation(s)
- Tolga Göktürk
- Department
of Chemistry, Muğla Sıtkı
Koçman University, 48000 Muğla, Türkiye
| | - Esin Sakallı Çetin
- Department
of Medical Biology, Muğla Sıtkı
Koçman University, 48000 Muğla, Türkiye
| | - Tuncer Hökelek
- Department
of Physics, Hacettepe University, 06800 Ankara, Türkiye
| | - Hanife Pekel
- Department
of Pharmacy Services, Vocational School of Health Services, Istanbul Medipol University, 34810 Istanbul, Türkiye
| | - Özge Şensoy
- Department
of Computer Engineering, Istanbul Medipol
University, 34000 Istanbul, Türkiye
| | - Ebru Nur Aksu
- Department
of Medical Biology, Muğla Sıtkı
Koçman University, 48000 Muğla, Türkiye
| | - Ramazan Güp
- Department
of Chemistry, Muğla Sıtkı
Koçman University, 48000 Muğla, Türkiye
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11
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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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12
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Arabpour Shiraz Z, Sohrabi N, Eslami Moghadam M, Oftadeh M. Molecular docking and spectroscopic study of bovine serum albumin interaction with new anticancer Pt complex with isopentyl dithiocarbamate ligand. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2023; 43:65-85. [PMID: 37452787 DOI: 10.1080/15257770.2023.2233576] [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: 04/13/2023] [Revised: 06/20/2023] [Accepted: 07/01/2023] [Indexed: 07/18/2023]
Abstract
Although cisplatin is useful in the treatment of cancer, it has a series of side effects that limit its use. Dithiocarbamates reduce the toxicity of platinum due to their structure and the presence of S, and N donating groups. In this article, the interaction of [Pt(bpy)(isopentyl.dtc)]NO3, where bpy is bipyridine and isopentyl.dtc is isopentyl-dithiocarbamate, with BSA, bovine serum albumin has been studied. The molecular binding method, including UV-Vis and fluorescence titration, was carried out in conditions including pH = 7.4 and temperatures of 27 and 37 °C. The negative values of enthalpy (ΔH°b) and entropy (ΔS°b) show that the driving forces of this interaction are hydrogen and van der Waals, and the negative value of the Gibbs free energy, ΔG°b indicates that the interaction proceeds spontaneously. The fluorescence results showed that the quenching mechanism is the static type and the Stern Volmer constant, KSV, was also obtained. The fluorescence titration method data displayed that the quenching mechanism is static. Binding constant (Kb), binding point (n), Hill coefficients, nH, Hill constant, KH, number of binding sites, g, BSA melting temperature, Tm, were also obtained. Finally, the molecular docking method result shows the binding constant, Ki and binding free energy for the platinum complex are -6.53 and 16.39 kcal mol-1, respectively, and also the proper position of binding on BSA can be considered the site I in the subdomain IIA.
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Affiliation(s)
| | - Nasrin Sohrabi
- Chemistry Department, Payame Noor University, Tehran, I. R. Iran
| | | | - Mohsen Oftadeh
- Chemistry Department, Payame Noor University, Tehran, I. R. Iran
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Kumari K, Kumar A, Manjur AT, Rakshit S. Bioactives Promiscuity of Mucin: Insight from Multi-Spectroscopic, Thermodynamic, and Molecular Dynamic Simulation Analyses. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:4589-4600. [PMID: 36917549 DOI: 10.1021/acs.langmuir.2c03268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Mucosal drug delivery plays an increasing role in the clinical setting owing to mucin's advantageous biochemical and pharmacological properties. However, how this transport system recognizes different substrates remains unclear. In this study, we explore the mechanism of bioactive (quercetin and berberine) promiscuity of mucin using various spectroscopic techniques and molecular dynamics simulations. The UV-visible spectroscopy results and the decreased fluorescence intensity of mucin in the presence of the bioactive compounds via a static quenching mechanism confirmed ground-state complex formation between the bioactives and mucin. The binding constants (Kb) were evaluated at different temperatures to afford Kb values of ∼104 Lmol-1, demonstrating the moderate and reasonable affinity of the bioactives for mucin, yielding greater diffusion into the tissues. Thermodynamic analysis and molecular dynamics (MD) simulations demonstrate that mucin-bioactive complex formation occurs primarily because of electrostatic/ionic interactions, while hydrophobic interactions were also crucial in stabilizing the complex. Far-UV circular dichroism spectroscopy showed that bioactive binding induced secondary structural changes in mucin. Sitemap and MD simulation indicated the principal binding site of mucin for the bioactives. This study also provides insight into the bioactives promiscuity of mucin in the presence of a crowded environment, which is relevant to the biological activity of mucin in vivo. An in vitro drug release study revealed that crowding assisted drug release in an enhanced burst manner compared with that in a dilute buffer system. This work thus provides fresh insight into drug absorption and distribution in the native cellular environment and helps direct new drug design and use in pharmaceutical and pharmacological fields.
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Affiliation(s)
- Komal Kumari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Avinash Kumar
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, MAHE, Madhav Nagar, Manipal, Karnataka 576104, India
| | - Ahamad Tamanna Manjur
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Surajit Rakshit
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
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Povinelli APR, de Carvalho Bertozo L, Zazeri G, Ximenes VF. A flaw in applying the FRET technique to evaluate the distance between ligands and tryptophan residues in human serum albumin: Proposal of correction. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2023; 242:112693. [PMID: 36947916 DOI: 10.1016/j.jphotobiol.2023.112693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/23/2023] [Accepted: 03/08/2023] [Indexed: 03/15/2023]
Abstract
Due to its primordial function as a drug carrier, human serum albumin (HSA) is extensively studied regarding its binding affinity with developing drugs. Förster resonance energy transfer (FRET) is frequently applied as a spectroscopic molecular ruler to measure the distance between the binding site and the ligand. In this work, we have shown that most of the published results that use the FRET technique to estimate the distance from ligands to the binding sites do not corroborate the crystallography data. By comparing the binding affinity of dansyl-proline with HSA and ovotransferrin, we demonstrated that FRET explains the quenching provoked by the interaction of ligands in albumin. So, why does the distance calculation via FRET not corroborate the crystallography data? We have shown that this inconsistency is related to the fact that a one-to-one relationship between donor and acceptor is not present in most experiments. Hence, the quenching efficiency used for calculating energy transfer depends on distance and binding constant, which is inconsistent with the correct application of FRET as a molecular ruler. We have also shown that the indiscriminate attribution of 2/3 to the relative orientation of transition dipoles of the acceptor and donor (κ2) generates inconsistencies. We proposed corrections based on the experimental equilibrium constant and theoretical orientation of transition dipoles to correct the FRET results.
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Affiliation(s)
- Ana Paula Ribeiro Povinelli
- Federal Institute of Education, Science and Technology of Mato Grosso, Campo Novo do Parecis, 78360-000, MT, Brazil
| | - Luiza de Carvalho Bertozo
- Department of Chemistry, Faculty of Sciences, UNESP - São Paulo State University, 17033-360 Bauru, SP, Brazil
| | - Gabriel Zazeri
- Federal Institute of Education, Science and Technology of Mato Grosso, Campo Novo do Parecis, 78360-000, MT, Brazil
| | - Valdecir Farias Ximenes
- Department of Chemistry, Faculty of Sciences, UNESP - São Paulo State University, 17033-360 Bauru, SP, Brazil.
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15
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Wang J, Yang B, Yu X, Chen S, Li W, Hong X. The impact of Zn doping on CdTe quantum dots-protein corona formation and the subsequent toxicity at the molecular and cellular level. Chem Biol Interact 2023; 373:110370. [PMID: 36731594 DOI: 10.1016/j.cbi.2023.110370] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/21/2022] [Accepted: 01/26/2023] [Indexed: 01/31/2023]
Abstract
Understanding the formation of protein corona (PC) is of vital importance for exploring the toxicity of nanoparticles and promoting their safe applications. In this study, CdTe QDs doping with 0, 1%, 5% and 10% Zn were synthesized using one-pot hydrothermal methods. Afterwards, this study explored and compared the formation of pure and Zn doped-QDs PC as well as the subsequent molecular and cellular toxicity. Result found that Zn doping regulated the toxicity of Cd-QDs by controlling their ability to adsorb serum proteins. The adsorption to Cd-QDs induced the dispersion, unfolding, secondary structural changes and the activity loss of bovine serum albumin (BSA). Among the synthesized Cd-QDs, 10%Zn-QDs exhibited the highest fluorescence quantum yield and lowest molecular toxicity. The formations of pure QDs and 10%Zn-QDs with BSA corona are majorly driven by different forces with different patterns. The regulation of BSA on the cytotoxicity differences of pure QDs and 10%Zn-QDs was similar with fetal bovine serum, proving the significant contribution of BSA to the cytotoxicity of Cd-QDs PC. Compared with pure QDs PC, the higher cytotoxicity and oxidative stress level of 10%Zn-QDs PC were correlated with higher intracellular [Cd2+]. Both larger amount of BSA adsorption and higher level of intracellular reactive oxygen species could accelerate the dissolution rates of 10%Zn-QDs and thus result in higher intracellular [Cd2+].
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Affiliation(s)
- Jing Wang
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai, 264005, PR China.
| | - Bin Yang
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai, 264005, PR China
| | - Xinping Yu
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai, 264005, PR China
| | - Shuji Chen
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai, 264005, PR China
| | - Wenxin Li
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai, 264005, PR China
| | - Xu Hong
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai, 264005, PR China
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16
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New Insights into the Inhibition of Hesperetin on Polyphenol Oxidase: Inhibitory Kinetics, Binding Characteristics, Conformational Change and Computational Simulation. Foods 2023; 12:foods12040905. [PMID: 36832979 PMCID: PMC9957399 DOI: 10.3390/foods12040905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/07/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
The inhibitory activity of hesperetin on polyphenol oxidase (PPO) and their interaction characteristics were investigated using multiple spectroscopic methods and computational simulation. Hesperetin, a mixed inhibitor, reversibly inhibited PPO activity, and its half-maximum inhibitory concentration (IC50) values on monophenolase and diphenolase were 80.8 ± 1.4 μM and 776.0 ± 15.5 μM, respectively. Multivariate curve resolution-alternate least squares (MCR-ALS) analysis suggested PPO interacted with hesperetin and formed PPO-hesperetin complex. Hesperetin statically quenched PPO's endogenous fluorescence, and hydrophobic interactions mainly drove their binding. Hesperetin affected the polarity of the microenvironment around the Trp residues in PPO, but had no effect on that around Tyr residues. Circular dichroism (CD) results showed that hesperetin increased α-helix content and decreased β-fold and random coil contents, thus tightening PPO's structure. Molecular docking showed that hesperetin entered the hydrophobic cavity of PPO, bound near the dinuclear copper active center, interacted with Val283, Phe264, His85, Asn260, Val248, and His263 via hydrophobic interactions, formed hydrogen bonds with Met280, His89, and His259 residues and also interacted with Phe292, His61, Phe90, Glu256, His244, Asn260, Phe264, and Gly281 via van der Waals forces. The molecular dynamics simulation results also demonstrated that the addition of hesperetin reduced the stability and hydrophobicity of PPO and increased PPO's structural denseness. Thus, the inhibition of hesperetin on PPO may be because hesperetin bound near the active center of PPO, interacted with the surrounding residues, occupied the binding site for substrate, and induced the changes in PPO's secondary structure, thus inhibiting the catalytic activity of PPO. This study may provide novel views for the inhibition of hesperetin on PPO and theoretical guidance for developing flavonoids as new and efficient PPO inhibitors.
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Wang C, Zhao R, Liu J, Wang C. Towards understanding the interaction between ultrasound-pretreated β-lactoglobulin monomer with resveratrol. LUMINESCENCE 2023; 38:116-126. [PMID: 36563058 DOI: 10.1002/bio.4427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/06/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022]
Abstract
Increasingly, studies are using ultrasound to elevate the functional properties of proteins, so the interaction between phenolic compounds and proteins induced by ultrasound needs to be further understood. β-Lactoglobulin (β-LG) at pH 8.1, which exists mainly as monomers, was ultrasound treated at 20 kHz ultrasonic intensity and 30% amplitude for 0-5 min and subsequently interacted with resveratrol. Fluorescence data showed that ultrasound pretreatment improved binding constant (Ka ) from (1.62 ± 0.45) × 105 to (9.43 ± 0.55) × 105 M-1 and binding number from 1.13 ± 0.09 to 1.28 ± 0.11 in a static quenching mode. Fluorescence resonance energy transfer (FRET) analysis indicated that resveratrol bound to the surface hydrophobic pocket of native and treated proteins with no obvious changes in energy transfer efficiency (E) and Föster's distance (r). Thermodynamic parameters indicated that ultrasonication shifted the main driving force from the hydrophobic force for native and 1-min treated β-LG to van der Waals forces and hydrogen bonding for both 3-min and 5-min treated proteins. Ultrasonication and resveratrol addition generated significant differences in surface hydrophobicity and the surface charge of the protein (P < 0.05), whereas they had little influence on the secondary structure of β-LG. Compared with the native β-LG/resveratrol complex, ultrasound-treated protein complexes showed significantly stronger 2,2-azinobis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) scavenging capacity (P < 0.05), and kept relatively stable after 180-min irradiation. Data provided by this study can lead to a better comprehension of the structure and molecular events occurring during the complexing process between an ultrasound-pretreated protein with polyphenol.
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Affiliation(s)
- Cuina Wang
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, China
| | - Ru Zhao
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, China
| | - Jia Liu
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, China
| | - Ce Wang
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
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18
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Abrar Siddiquee M, Saraswat J, Ud Din Parray M, Singh P, Bargujar S, Patel R. Spectroscopic and DFT study of imidazolium based ionic liquids with broad spectrum antibacterial drug levofloxacin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 285:121803. [PMID: 36095856 DOI: 10.1016/j.saa.2022.121803] [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: 01/22/2022] [Revised: 08/14/2022] [Accepted: 08/27/2022] [Indexed: 06/15/2023]
Abstract
Herein, we have shown the interaction of levofloxacin (LVF) with two imidazolium based ionic liquids (ILs), 1-butly-3-methylimidazolium chloride ([Bmim][Cl]) and 1-decyl-3-methylimidazolium chloride ([Dmim][Cl]) by utilising spectroscopic techniques along with computational approach. Both [Bmim][Cl] and [Dmim][Cl] quenched the fluorescence emission of LVF suggesting complex formation between ILs and the drug. The steady-state and time-resolve fluorescence studies revealed that the quenching of fluorescence emission of LVF in the presence of [Bmim][Cl] and [Dmim][Cl], which signified the non-fluorescent complex formation between LVF and ILs. The complex formation between LVF and ILs were also validated by the UV-visible spectroscopy method. The cyclic voltammetry (CV) results further suggest the strong interaction between LVF and ILs. The estimated binding constant (Kb) and free energy change (ΔG) parameters shows the substantial binding of LVF with both the ILs and spontaneous in nature. The value suggested that LVF have stronger binding with [Dmim][Cl] than [Bmim][Cl]. Further, in order to support the results classical density functional theory (DFT) model was performed. The DFT calculations were utilized to explore the 3D structure and the molecular orbitals (HOMO and LUMO) of ILs, LVF and their complexes using Gaussian 09 software. The aggregate size (Dh) and zeta potential of ILs and IL-drug complexes were determined by dynamic light scattering (DLS) and zeta potential in aqueous medium.
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Affiliation(s)
- Md Abrar Siddiquee
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Juhi Saraswat
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Mehraj Ud Din Parray
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Prashant Singh
- Department of Chemistry, ARSD College, Delhi University, New Delhi 110021, India
| | - Savita Bargujar
- Department of Chemistry, Ramjas College, Delhi University, New Delhi 110007, India
| | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India.
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19
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Saraswat J, Kumar S, Alzahrani KA, Malik MA, Patel R. Experimental and Computational Characterisation of the Molecular Interactions between 1‐Butyl‐1‐methyl‐pyrrolidin‐1‐ium bis(trifluoromethanesulphonyl)imide and Human Serum Albumin. ChemistrySelect 2023. [DOI: 10.1002/slct.202204159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Juhi Saraswat
- Biophysical Chemistry Laboratory Centre for Interdisciplinary Research in Basic Sciences Jamia Millia Islamia New Delhi 110025 India
| | - Shiv Kumar
- Department of Chemistry Kalindi College University of Delhi New Delhi 110008 India
| | - Khalid Ahmed Alzahrani
- Chemistry Department Faculty of Science King Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
| | - Maqsood Ahmad Malik
- Chemistry Department Faculty of Science King Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
| | - Rajan Patel
- Biophysical Chemistry Laboratory Centre for Interdisciplinary Research in Basic Sciences Jamia Millia Islamia New Delhi 110025 India
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Zhang G, Zhu M, Liao Y, Gong D, Hu X. Action mechanisms of two key xanthine oxidase inhibitors in tea polyphenols and their combined effect with allopurinol. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:7195-7208. [PMID: 35727856 DOI: 10.1002/jsfa.12085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/21/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Tea polyphenols have been reported to have the effect of lowering uric acid. However, there are few studies on the inhibitory effects and molecular mechanisms of specific catechins on the urate-metabolizing enzyme xanthine oxidase (XO). In this research, multiple spectroscopic methods and computer simulations were used to determine the inhibitory ability and mechanisms of epigallocatechin gallate (EGCG) and gallocatechin gallate (GCG) on XO. RESULTS Herein, EGCG and GCG reversibly inhibited XO activity in a mixed manner, with IC50 values of 40.50 ± 0.32 and 33.60 ± 0.53 μmol L-1 , and also decreased the superoxide anion radical (O2 - ) of the catalytic system by reducing the XO molecule and inhibiting the formation of uric acid. The combination of EGCG or GCG with allopurinol showed synergistic inhibition on XO. The binding of EGCG or GCG to XO with moderate affinity formed a stable complex by hydrogen bonds and van der Waals forces. The presence of EGCG and GCG made the structure of XO more stable and compact. The two inhibitors bound to the vicinity of flavin adenine dinucleotide (FAD) in XO, hindering the entry of substrate; thus the activity of XO was suppressed. CONCLUSION Both EGCG and GCG are excellent natural XO inhibitors, and inhibited the activity of XO by occupying the channel of the substrate to enter the active center and interfering with the dual substrate reaction catalyzed by XO. These findings provide a scientific basis for the application of catechins in dietary supplements and medicines with lowering uric acid effects. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Miao Zhu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Yijing Liao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Deming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
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21
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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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22
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Zhang S, Zhou B, Zhou L, Zhou H, Chen F, Yang S, Chen C, Tuo X. Alterations in the conformation and function of human serum albumin induced by the binding of methyl hydrogen phthalate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 278:121335. [PMID: 35526438 DOI: 10.1016/j.saa.2022.121335] [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: 01/07/2022] [Revised: 04/06/2022] [Accepted: 04/28/2022] [Indexed: 06/14/2023]
Abstract
Phthalate esters (PAEs) are widely used as plasticizer components in production. Methyl hydrogen phthalate (MHP) is a metabolite of dimethyl phthalate (DMP, a kind of PAEs), and its toxic residues accumulate in the nature and can enter the human body. Here, the interaction between MHP and human serum albumin (HSA) was probed by using multi-spectral, computer simulations, and biochemical techniques. The results showed that MHP was spontaneously embedded in site I of HSA to form a complex by H-bonds and van der Waals forces (ΔH < 0, ΔS < 0). The binding constant (Ka) of the HSA-MHP system was 1.136 ± 0.026 × 104 M-1 (298 K). The combination of MHP produced conformational variations of HSA, as shown by the 3D fluorescence spectrum, CD spectra, and molecular dynamics simulation. Additionally, molecular docking indicated that MHP was surrounded by multiple residues, such as Lys199, Leu203, Phe206, and Trp214. Specifically, Lys199 and Trp214 exerted a crucial effect on the interaction of HSA and MHP. The residues with important energy contribution were mostly located in site I. The ASA values of the aromatic amino acids of HSA changed after combining with MHP. The Rg and SASA values of HSA increased after adding MHP, suggesting that the structure of HSA was less compact. Moreover, the esterase-like activity of HSA increased after adding MHP to HSA, indicating that MHP may disturb the normal physiological activities in the human body. This study was helpful to understand the biological function of MHP and provided some insights for its side effect in the human body.
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Affiliation(s)
- Siyao Zhang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Bijia Zhou
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Like Zhou
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Hui Zhou
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Fengping Chen
- School of Pharmacy, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Shuling Yang
- 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
| | - Xun Tuo
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China.
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23
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Shahabadi N, Ghaffari L, Mardani Z, Shiri F. Multi‐Spectroscopic and Theoretical Analyses of Human Serum Albumin Binding to a Water‐Soluble Zinc(II) Complex including β‐Amino Alcohol. ChemistrySelect 2022. [DOI: 10.1002/slct.202200645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nahid Shahabadi
- Department of Inorganic Chemistry Faculty of Chemistry Razi University Kermanshah Iran
| | - Lida Ghaffari
- Department of Inorganic Chemistry Faculty of Chemistry Razi University Kermanshah Iran
| | - Zahra Mardani
- Department of Inorganic Chemistry Faculty of Chemistry Urmia University Urmia Iran
| | - Farshad Shiri
- Department of Inorganic Chemistry Faculty of Chemistry Razi University Kermanshah Iran
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PI3K/mTOR Dual Inhibitor Pictilisib Stably Binds to Site I of Human Serum Albumin as Observed by Computer Simulation, Multispectroscopic, and Microscopic Studies. Molecules 2022; 27:molecules27165071. [PMID: 36014303 PMCID: PMC9413508 DOI: 10.3390/molecules27165071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/02/2022] [Accepted: 08/06/2022] [Indexed: 11/17/2022] Open
Abstract
Pictilisib (GDC-0941) is a well-known dual inhibitor of class I PI3K and mTOR and is presently undergoing phase 2 clinical trials for cancer treatment. The present work investigated the dynamic behaviors and interaction mechanism between GDC-0941 and human serum albumin (HSA). Molecular docking and MD trajectory analyses revealed that GDC-0941 bound to HSA and that the binding site was positioned in subdomain IIA at Sudlow’s site I of HSA. The fluorescence intensity of HSA was strongly quenched by GDC-0941, and results showed that the HSA–GDC-0941 interaction was a static process caused by ground-state complex formation. The association constant of the HSA–GDC-0941 complex was approximately 105 M−1, reflecting moderate affinity. Thermodynamic analysis conclusions were identical with MD simulation results, which revealed that van der Waals interactions were the vital forces involved in the binding process. CD, synchronous, and 3D fluorescence spectroscopic results revealed that GDC-0941 induced the structural change in HSA. Moreover, the conformational change of HSA affected its molecular sizes, as evidenced by AFM. This work provides a useful research strategy for exploring the interaction of GDC-0941 with HSA, thus helping in the understanding of the transport and delivery of dual inhibitors in the blood circulation system.
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Azeem K, Ahmed M, Mohammad T, Uddin A, Shamsi A, Hassan MI, Singh S, Patel R, Abid M. A multi-spectroscopic and computational simulations study to delineate the interaction between antimalarial drug hydroxychloroquine and human serum albumin. J Biomol Struct Dyn 2022:1-17. [PMID: 35924780 DOI: 10.1080/07391102.2022.2107077] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Hydroxychloroquine (HCQ), a quinoline based medicine is commonly used to treat malaria and autoimmune diseases such as rheumatoid arthritis. Since, human serum albumin (HSA) serves as excipient for vaccines or therapeutic protein drugs, it is important to understand the effect of HCQ on the structural stability of HSA. In this study, the binding mechanism of HCQ and their effect on stability of HSA have been studied using various spectroscopic techniques and molecular dynamic simulation. The UV-VIS results confirmed the strong binding of HCQ with HSA. The calculated thermodynamics parameters confirmed that binding is spontaneous in nature and van der Waals forces and hydrogen bonding are involved in the binding system which is also confirmed by molecular docking results. The steady-state fluorescence confirms the static quenching mechanism in the interaction system, which was further validated by time-resolved fluorescence. The synchronous fluorescence confirmed the more abrupt binding of HCQ with tryptophan residue of HSA compared to Tyr residue of HSA. Isothermal titration calorimetry (ITC) was done to validate the thermodynamics parameters of HSA-HCQ complex in one experiment, supporting the values obtained from the spectroscopic techniques. The circular dichroism (CD) demonstrated that the HCQ affected the secondary structure of HSA protein by reducing their α-helical content. The docking and molecular dynamic simulation results further helped in understanding the effect of HCQ on conformational changes of HSA. Overall, present work defined the physicochemical properties and interaction mechanism of HCQ with HSA that have extensively been elucidated by both in vitro and in silico approaches.
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Affiliation(s)
- Kashish Azeem
- Department of Biosciences, Medicinal Chemistry Laboratory, New Delhi, India.,Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Mofieed Ahmed
- Department of Biosciences, Medicinal Chemistry Laboratory, New Delhi, India.,Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Taj Mohammad
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Amad Uddin
- Department of Biosciences, Medicinal Chemistry Laboratory, New Delhi, India.,Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, India
| | - Anas Shamsi
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Shailja Singh
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, India
| | - Rajan Patel
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Mohammad Abid
- Department of Biosciences, Medicinal Chemistry Laboratory, New Delhi, India
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26
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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: 0] [Impact Index Per Article: 0] [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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27
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Magnetic reduced graphene oxide (MrGO) nanocomposites as Nano carries for loading and transferring of 10-hydroxycamptothecin. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119680] [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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28
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Liu D, Zhang J, Chen L, Zhu Y, Zhang Y. Study on the Binding of Methylphenanthrene Isomers with Different Methylated Positions to Human Serum Albumin Employing Spectroscopic Techniques Combined with Molecular Docking. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2020.1852280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Dan Liu
- State Key Laboratory of Marine Environmental Sciences of China (Xiamen University), College of Environment and Ecology, Xiamen University, Xiamen, P.R. China
| | - Jing Zhang
- Key Laboratory of Estuarine Ecological Security and Environmental Health, Fujian Province University, Tan Kah Kee College, Xiamen University, Zhangzhou, P.R. China
| | - Linfeng Chen
- State Key Laboratory of Marine Environmental Sciences of China (Xiamen University), College of Environment and Ecology, Xiamen University, Xiamen, P.R. China
| | - Yaxian Zhu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, P.R. China
| | - Yong Zhang
- State Key Laboratory of Marine Environmental Sciences of China (Xiamen University), College of Environment and Ecology, Xiamen University, Xiamen, P.R. China
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29
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Sadeghi M, Miroliaei M, Taslimi P, Moradi M. In silico analysis of the molecular interaction and bioavailability properties between some alkaloids and human serum albumin. Struct Chem 2022. [DOI: 10.1007/s11224-022-01925-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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30
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Butnariu M, Quispe C, Herrera-Bravo J, Pentea M, Sarac I, Küşümler AS, Özçelik B, Painuli S, Semwal P, Imran M, Gondal TA, Emamzadeh-Yazdi S, Lapava N, Yousaf Z, Kumar M, Eid AH, Al-Dhaheri Y, Suleria HAR, del Mar Contreras M, Sharifi-Rad J, Cho WC. Papaver Plants: Current Insights on Phytochemical and Nutritional Composition Along with Biotechnological Applications. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2041769. [PMID: 36824615 PMCID: PMC9943628 DOI: 10.1155/2022/2041769] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/13/2021] [Accepted: 01/06/2022] [Indexed: 11/17/2022]
Abstract
The genus Papaver is highly esteemed in the pharmacy industry, in the culinary field, and as ornamental plants. These plants are also valued in traditional medicine. Among all Papaver species, Papaver somniferum L. (opium poppy) is the most important species in supplying phytochemicals for the formulation of drugs, mainly alkaloids like morphine, codeine, rhoeadine, thebaine, and papaverine. In addition, Papaver plants present other types of phytochemicals, which altogether are responsible for its biological activities. Therefore, this review covers the phytochemical composition of Papaver plants, including alkaloids, phenolic compounds, and essential oils. The traditional uses are reviewed along with their pharmacological activities. Moreover, safety aspects are reported to provide a deep overview of the pharmacology potential of this genus. An updated search was carried out in databases such as Google Scholar, ScienceDirect, and PubMed to retrieve the information. Overall, this genus is a rich source of alkaloids of different types and also contains interesting phenolic compounds, such as anthocyanins, flavonols, and the characteristic indole derivatives nudicaulins. Among other pharmacological properties, numerous preclinical studies have been published about the analgesic, anticancer, antimicrobial, antioxidant, and antidiabetic activities of Papaver plants. Although it highlights the significant impact of this genus for the treatment of a variety of diseases and conditions, as a future prospect, characterization works accompanying preclinical studies are required along with clinical and toxicology studies to establish a correlation between the scientific and traditional knowledge.
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Affiliation(s)
- Monica Butnariu
- Banat's University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Timisoara, Romania
| | - Cristina Quispe
- Facultad de Ciencias de la Salud, Universidad Arturo Prat, Avda. Arturo Prat 2120, Iquique 1110939, Chile
| | - Jesús Herrera-Bravo
- Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad Santo Tomas, Chile
- Center of Molecular Biology and Pharmacogenetics, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco 4811230, Chile
| | - Marius Pentea
- Banat's University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Timisoara, Romania
| | - Ioan Sarac
- Banat's University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Timisoara, Romania
| | - Aylin Seylam Küşümler
- İstanbul Okan University, Nutrition and Dietetics Department, Tuzla, İstanbul, Turkey
| | - Beraat Özçelik
- Department Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey
- BIOACTIVE Research & Innovation Food Manufacturing Industry Trade LTD Co., Maslak, Istanbul 34469, Turkey
| | - Sakshi Painuli
- Department of Biotechnology, Graphic Era University, 248001, Dehradun, Uttarakhand, India
- Himalayan Environmental Studies and Conservation Organization, Prem Nagar, Dehradun, 248001 Uttarakhand, India
| | - Prabhakar Semwal
- Department of Biotechnology, Graphic Era University, 248001, Dehradun, Uttarakhand, India
- Department of Life Sciences, Graphic Era Deemed to be University, Dehradun-248002, Uttarakhand, India
| | - Muhammad Imran
- University Institute of Diet and Nutritional Sciences, Faculty of Allied Health Sciences, The University of Lahore-Lahore, Pakistan
| | | | - Simin Emamzadeh-Yazdi
- Department of Plant and Soil Sciences, University of Pretoria, Gauteng 0002, South Africa
| | - Natallia Lapava
- Medicine Standardization Department of Vitebsk State Medical University, Belarus
| | | | - Manoj Kumar
- Chemical and Biochemical Processing Division, ICAR-Central Institute for Research on Cotton Technology, 400019, Mumbai, India
| | - Ali Hussein Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, PO Box 2713, Doha, Qatar
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, PO Box 2713, Doha, Qatar
| | - Yusra Al-Dhaheri
- Department of Biology, College of Science, United Arab Emirates University, UAE
| | | | - María del Mar Contreras
- Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus las Lagunillas, s/n, 23071 Jaén, Spain
| | | | - William C. Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong
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31
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Hekmat A, Hatamie S, Saboury AA. The effects of synthesized silver nanowires on the structure and esterase-like activity of human serum albumin and their impacts on human endometrial stem cells. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2034859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Azadeh Hekmat
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shadie Hatamie
- Institute of NanoEngineering and MicroSystems, National Tsing Hua University, Hsinchu, Taiwan
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
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32
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A study of the interactions between ephedrine and human serum albumin based on spectroscopic, electrochemical and docking assessments. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Zheng S, Fang X, Li F, Sun Q, Zhao M, Wei H, Xu W, Li H. Characterization of interactions of montelukast sodium with human serum albumin: multi-spectroscopic techniques and computer simulation studies. NEW J CHEM 2022. [DOI: 10.1039/d2nj00419d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The interaction mechanism of montelukast sodium and HSA was characterized using spectroscopic and computer methods.
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Affiliation(s)
- Shoujun Zheng
- Medical College of Panzhihua University, Panzhihua, 617000, China
| | - Xinyi Fang
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Fan Li
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Qiaomei Sun
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Mu Zhao
- Medical College of Panzhihua University, Panzhihua, 617000, China
| | - Huiping Wei
- Medical College of Panzhihua University, Panzhihua, 617000, China
| | - Wanyu Xu
- Medical College of Panzhihua University, Panzhihua, 617000, China
| | - Hui Li
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
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34
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Sun X, Xin X, He W, Cao X, Shen J. Tandem Förster resonance energy transfer induced visual ratiometric fluorescence sensing of tetracyclines based on zeolitic imidazolate framework-8 incorporated with carbon dots and safranine T. Analyst 2022; 147:1152-1158. [DOI: 10.1039/d1an01994e] [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
With increasing TC concentration, tandem FRET1 from CDs to TC, then FRET2 from TC to safranine T were occurred. TC could be easily recognized by naked eye. Besides, we could perform on-site detection of TC with the help of a mobile phone.
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Affiliation(s)
- Xiangying Sun
- College of Materials Science and Engineering, Huaqiao University, Key Laboratory of Molecular Designing and Green Conversions (Fujian University), Xiamen 361021, China
| | - Xiaolin Xin
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Wei He
- College of Materials Science and Engineering, Huaqiao University, Key Laboratory of Molecular Designing and Green Conversions (Fujian University), Xiamen 361021, China
| | - Xuegong Cao
- College of Materials Science and Engineering, Huaqiao University, Key Laboratory of Molecular Designing and Green Conversions (Fujian University), Xiamen 361021, China
| | - Jiangshan Shen
- College of Materials Science and Engineering, Huaqiao University, Key Laboratory of Molecular Designing and Green Conversions (Fujian University), Xiamen 361021, China
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35
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Meira Menezes T, Assis C, Lacerda Cintra AJ, Silva dos Santos RC, Martins do Vale WK, Max Gomes Martins R, de Souza Bezerra R, Seabra GDM, Li C, Neves JL. Binding Mechanism between Acetylcholinesterase and Drugs Pazopanib and Lapatinib: Biochemical and Biophysical Studies. ACS Chem Neurosci 2021; 12:4500-4511. [PMID: 34808043 DOI: 10.1021/acschemneuro.1c00521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Tyrosine kinase inhibitors (TKIs) are antitumor compounds that prevent the phosphorylation of proteins in a biological environment. However, the multitarget performance of TKIs promotes them as possible candidates for drug repositioning. In this work, interaction and inhibition studies through spectroscopic and computational techniques to evaluate the binding effectiveness of lapatinib and pazopanib TKIs to acetylcholinesterase (AChE) are reported. The results indicated potent inhibition at the μM level. The types of inhibition were identified, with pazopanib acting through non-competitive inhibition and lapatinib through acompetitive inhibition. The fluorescence suppression studies indicate a static mechanism for lapatinib-AChE and pazopanib-AChE systems, with a binding constant in the order of 105 M-1. The obtained thermodynamic parameters reveal interactions driven by van der Waals forces and hydrogen bonds in the lapatinib-AChE system (ΔH° and ΔS° < 0). In contrast, the pazopanib-AChE system shows positive ΔH° and ΔS°, characteristic of hydrophobic interactions. The Foster resonance energy transfer study supports the fluorescence studies performed. The 3D fluorescence studies suggest changes in the microenvironment of the tryptophan and tyrosine residues of the protein in contact with lapatinib and pazopanib. The results suggest effective inhibition and moderate interaction of the drugs with AChE, making them interesting for conducting more in-depth repositioning studies as AChE inhibitors.
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Affiliation(s)
- Thaís Meira Menezes
- Fundamental Chemistry Department, Federal University of Pernambuco, Recife 50670-901, Brazil
| | - Caio Assis
- Department of Biochemistry and Physiology, Federal University of Pernambuco, Recife 50670-901, Brazil
| | | | | | | | - Regildo Max Gomes Martins
- Post-Graduate in Biotechnology Multi-Institutional Program, PPGBIOTEC, Federal University of Amazonas, Manaus 69067-005, Brazil
| | - Ranilson de Souza Bezerra
- Department of Biochemistry and Physiology, Federal University of Pernambuco, Recife 50670-901, Brazil
| | | | - Chenglong Li
- Department of Medicinal Chemistry, University of Florida, Gainesville, Florida 32610, United States
| | - Jorge Luiz Neves
- Fundamental Chemistry Department, Federal University of Pernambuco, Recife 50670-901, Brazil
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Zhou Z, Zhu M, Zhang G, Hu X, Pan J. Novel insights into the interaction mechanism of 5-hydroxymethyl-2-furaldehyde with β-casein and its effects on the structure and function of β-casein. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112360] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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37
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Huang ZY, Li XY, Wang ZH, Hu LY, Tu XC, Hu YJ. Synthesis of novel 3-fluorooxindoles and their affinity probing with serum albumin: Using multi-spectral, electrochemical, and molecular docking. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117615] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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38
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Alves JEF, Lucena MLC, de Souza Lucena AE, das Merces AAD, de Azevedo RDS, Sousa GLS, de Moura RO, Alves de Lima MDC, de Carvalho Júnior LB, de Almeida SMV. A simple method for obtaining human albumin and its use for in vitro interaction assays with indole-thiazole and indole-thiazolidinone derivatives. Int J Biol Macromol 2021; 192:126-137. [PMID: 34562539 DOI: 10.1016/j.ijbiomac.2021.09.109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 12/20/2022]
Abstract
This work aimed to develop a simple and low-cost method to obtain human serum albumin (HSA) and its consequent application for in vitro drug interaction assays. The HSA was purified by classic principles of plasma precipitation and thermocoagulation, using a multiple-stage fractionation. The quality of the final product was assessed by electrophoresis, protein dosage by the Lowry method and the pharmacopeial thermal stability. At the end, an isotonic solution of HSA with a total protein concentration of 2.7 mg·mL-1 was obtained, which was visualized as a single band corresponding to the molecular weight of 66 kDa. After the thermal stability test, there was no indication of turbidity or color change of the solution. Finally, the HSA was useful for interaction assays with indole-thiazole and indole-thiazolidinone derivatives through UV-vis absorption and fluorescence spectroscopic studies, as well as by docking molecular analysis. Derivatives quenched the intrinsic fluorescence of HSA, disrupted the tryptophan residues microenvironment, and probably bind at Sudlow's site I. Therefore, the simplified methodology developed in this work proved to be effective in obtaining HSA that can be applied to research goals including drug interaction assays.
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Affiliation(s)
| | | | | | | | - Rafael David Souto de Azevedo
- Laboratório de Biologia Molecular, Universidade de Pernambuco (UPE), Multicampi Garanhuns, Garanhuns, PE 55290-000, Brazil
| | - Gleyton Leonel Silva Sousa
- Programa de Doutorado em Química, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ 23897-000, Brazil
| | - Ricardo Olimpio de Moura
- Departamento de Ciências Biológicas e da Saúde, Universidade Estadual da Paraíba, João Pessoa, PB 58429-500, Brazil
| | - Maria do Carmo Alves de Lima
- Laboratório de Química e Inovação Terapêutica (LQIT) - Departamento de Antibióticos, Universidade Federal de Pernambuco, Recife, PE 50670-901, Brazil
| | | | - Sinara Mônica Vitalino de Almeida
- Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, Recife, PE 50670-901, Brazil; Laboratório de Biologia Molecular, Universidade de Pernambuco (UPE), Multicampi Garanhuns, Garanhuns, PE 55290-000, Brazil.
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39
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Investigation of the interaction between Chrysoeriol and xanthine oxidase using computational and in vitro approaches. Int J Biol Macromol 2021; 190:463-473. [PMID: 34506859 DOI: 10.1016/j.ijbiomac.2021.08.231] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/25/2021] [Accepted: 08/31/2021] [Indexed: 01/13/2023]
Abstract
Xanthine oxidase (XO) plays a vital role in inducing hyperuricemia and increasing the level of superoxide free radicals in blood, and is proved as an important target for gout. Chrysoeriol (CHE) is a natural flavone with potent XO inhibitory activity (IC50 = 2.487 ± 0.213 μM), however, the mechanism of interaction is still unclear. Therefore, a comprehensive analysis of the interaction between CHE and XO was accomplished by enzyme kinetics, isothermal titration calorimetry (ITC), multi-spectroscopic methods, molecular simulation and ADMET. The results showed that CHE acted as a rapid reversible and competitive-type XO inhibitor and its binding to XO was driven by hydrogen bonding and hydrophobic interaction. Moreover, CHE exhibited a strong fluorescence quenching effect through a static quenching procedure and induced conformational changes of XO. Its binding pattern with XO was revealed by docking study and the binding affinity to XO was enhanced by the interactions with key amino acid residues in the active pocket of XO. Further, CHE showed good stability and pharmacokinetic behavior properties in molecule dynamic simulation and ADMET prediction. Overall, this study shed some light on the mechanism of interaction between CHE and XO, also provided some valuable information concerning the future therapeutic application of CHE as natural XO inhibitor.
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40
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Ali A, Hasan P, Irfan M, Uddin A, Khan A, Saraswat J, Maguire R, Kavanagh K, Patel R, Joshi MC, Azam A, Mohsin M, Haque QMR, Abid M. Development of Oxadiazole-Sulfonamide-Based Compounds as Potential Antibacterial Agents. ACS OMEGA 2021; 6:27798-27813. [PMID: 34722980 PMCID: PMC8552329 DOI: 10.1021/acsomega.1c03379] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
In this work, substituted 1,2,4-oxadiazoles (OX1-OX27) were screened against five bacterial strains, identified to be OX7 and OX11 as growth inhibitors with minimum inhibitory concentration (MIC) values of 31.25 and 15.75 μg/mL, respectively. The growth inhibitory property of OX7 and OX11 was further validated by disk diffusion, growth curve, and time kill curve assays. Both disrupted biofilm formation with 92-100% reduction examined by the XTT assay were further visualized by scanning electron microscopy analysis. These compounds in combination with ciprofloxacin also exhibit synergy against Escherichia coli cells. With insignificant cytotoxic behavior on HEK293 cells, human red blood cells, and Galleria mellonella larvae, OX11 was tested against 28 multidrug resistant environmental isolates of bacteria and showed inhibition of Kluyvera georgiana and Citrobacter werkmanii strains with 32 and 16 μg/mL MIC values, respectively. The synergistic behavior of OX11 with ampicillin showed many fold reductions in MIC values against K. georgiana and Klebsiella pneumoniae multidrug resistant strains. Further, transmission electron microscopy analysis of OX11-treated E. coli cells showed a significantly damaged cell wall, which resulted in the loss of integrity and cytosolic oozing. OX11 showed significant changes in the secondary structure of human serum albumin (HSA) in the presence of OX11, enhancing HSA stability. Overall, the study provided a suitable core for further synthetic alterations and development as an antibacterial agent.
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Affiliation(s)
- Asghar Ali
- Microbiology
Research Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Phool Hasan
- Medicinal
Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Mohammad Irfan
- Medicinal
Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Amad Uddin
- Medicinal
Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Ashba Khan
- Medicinal
Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Juhi Saraswat
- Biophysical
Chemistry Laboratory, Centre for Interdisciplinary Research in Basic
Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Ronan Maguire
- Department
of Biology, Maynooth University, Maynooth, Co. Kildare ABC127 Ireland
| | - Kevin Kavanagh
- Department
of Biology, Maynooth University, Maynooth, Co. Kildare ABC127 Ireland
| | - Rajan Patel
- Biophysical
Chemistry Laboratory, Centre for Interdisciplinary Research in Basic
Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Mukesh C. Joshi
- Motilal
Nehru College, University of Delhi, Benito Juarez Marg, South Campus, New Delhi 110021, India
| | - Amir Azam
- Department
of Chemistry, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Mohd. Mohsin
- Metabolic
Engineering Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Qazi Mohd. Rizwanul Haque
- Microbiology
Research Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Mohammad Abid
- Medicinal
Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
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41
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Patel R, Singh B, Sharma A, Saraswat J, Dohare N, Parray MUD, Siddiquee MA, Alanazi AM, Khan AA. Interaction and esterase activity of albumin serums with orphenadrine: A spectroscopic and computational approach. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130522] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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42
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Ribeiro AG, Alves JEF, Soares JCS, dos Santos KL, Jacob ÍTT, da Silva Ferreira CJ, dos Santos JC, de Azevedo RDS, de Almeida SMV, de Lima MDCA. Albumin roles in developing anticancer compounds. Med Chem Res 2021. [DOI: 10.1007/s00044-021-02748-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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43
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Larson MC, Gmitro AF, Utzinger U, Rouse AR, Woodhead GJ, Carlson Q, Hennemeyer CT, Barton JK. Using FDA-approved drugs as off-label fluorescent dyes for optical biopsies: from in silico design to ex vivoproof-of-concept. Methods Appl Fluoresc 2021; 9. [PMID: 34044380 DOI: 10.1088/2050-6120/ac0619] [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: 01/01/2021] [Accepted: 05/27/2021] [Indexed: 11/12/2022]
Abstract
Optical biopsies bring the microscope to the patient rather than the tissue to the microscope, and may complement or replace the tissue-harvesting component of the traditional biopsy process with its associated risks. In general, optical biopsies are limited by the lack of endogenous tissue contrast and the small number of clinically approvedin vivodyes. This study tests multiple FDA-approved drugs that have structural similarity to research dyes as off-labelin situfluorescent alternatives to standardex vivohematoxylin & eosin tissue stain. Numerous drug-dye combinations shown here may facilitate relatively safe and fastin situor possiblyin vivostaining of tissue, enabling real-time optical biopsies and other advanced microscopy technologies, which have implications for the speed and performance of tissue- and cellular-level diagnostics.
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Affiliation(s)
- Michael C Larson
- Medical Imaging, University of Arizona/Banner-University Medical Center, United States of America
| | - Arthur F Gmitro
- Medical Imaging, University of Arizona/Banner-University Medical Center, United States of America.,Biomedical Engineering Department, University of Arizona, United States of America.,College of Optical Sciences, University of Arizona, United States of America
| | - Urs Utzinger
- Biomedical Engineering Department, University of Arizona, United States of America.,College of Optical Sciences, University of Arizona, United States of America.,Electrical and Computer Engineering Department, University of Arizona, United States of America.,BIO5 Institute, University of Arizona, United States of America.,Obstetrics & Gynecology, University of Arizona/Banner-University Medical Center, United States of America
| | - Andrew R Rouse
- Medical Imaging, University of Arizona/Banner-University Medical Center, United States of America.,College of Optical Sciences, University of Arizona, United States of America.,Research, Innovation and Impact, University of Arizona, United States of America
| | - Gregory J Woodhead
- Medical Imaging, University of Arizona/Banner-University Medical Center, United States of America
| | - Quinlan Carlson
- Post-Sophomore Fellowship in Pathology, College of Medicine, University of Arizona, United States of America
| | - Charles T Hennemeyer
- Medical Imaging, University of Arizona/Banner-University Medical Center, United States of America
| | - Jennifer K Barton
- Medical Imaging, University of Arizona/Banner-University Medical Center, United States of America.,Biomedical Engineering Department, University of Arizona, United States of America.,College of Optical Sciences, University of Arizona, United States of America.,Electrical and Computer Engineering Department, University of Arizona, United States of America.,BIO5 Institute, University of Arizona, United States of America
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44
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Zhu Z, Zhang Q, Lay Yap P, Ni Y, Losic D. Magnetic reduced graphene oxide as a nano-vehicle for loading and delivery of curcumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 252:119471. [PMID: 33524822 DOI: 10.1016/j.saa.2021.119471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/20/2020] [Accepted: 01/10/2021] [Indexed: 06/12/2023]
Abstract
Magnetic nanoparticles have been widely used in the field of nanomedicine as drug delivery vehicles for targeted imaging-guided and controlled drug uptake and release actions. In this work, the loading of curcumin on Fe3O4/rGO nanocomposites and their interaction mechanism were investigated by multispectral methods including resonance light scattering (RLS), atomic force microscopy (AFM), circular dichroism (CD) and Fourier transform infrared (FT-IR). Results revealed that the drug loading was a complex process which is not governed by a simple adsorption. The interactions of vitro human serum albumin (HSA) with free curcumin and/or curcumin-Fe3O4/rGO complex have been studied. Outcomes from the fluorescence quenching showed that the binding constant of curcumin to HSA increased significantly in the presence of Fe3O4/rGO, confirming the enhanced effect of Fe3O4/rGO besides its low toxicity towards HSA. Findings from this work verified that Fe3O4/rGO nanocomposite has a promising potential as a good drug loading carrier that can be used and broad range of therapies.
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Affiliation(s)
- Zhi Zhu
- School of Chemistry, Nanchang University, Nanchang 330031, China
| | - Qiulan Zhang
- School of Chemistry, Nanchang University, Nanchang 330031, China; Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang 330031, China; State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.
| | - Pei Lay Yap
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Yongnian Ni
- School of Chemistry, Nanchang University, Nanchang 330031, China
| | - Dusan Losic
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, South Australia 5005, Australia
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45
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Xiang H, Sun Q, Wang W, Li S, Xiang X, Li Z, Liao X, Li H. Study of conformational and functional changes caused by binding of environmental pollutant tonalide to human serum albumin. CHEMOSPHERE 2021; 270:129431. [PMID: 33388505 DOI: 10.1016/j.chemosphere.2020.129431] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/09/2020] [Accepted: 12/22/2020] [Indexed: 06/12/2023]
Abstract
Tonalide (AHTN) is a new category of pollutants with a wide range of potential environmental and organismal hazards due to its persistence and lipophilicity, and the safety evaluation of this pollutant under physiological condition is a pressing issue. This study investigated the mechanism of interaction between AHTN and human serum albumin (HSA) that is an important transporter in plasma using multiple spectroscopic, molecular docking, and dynamics simulation methods. The steady-state fluorescence and fluorescence lifetime experiments showed that AHTN quenches the inherent fluorescence of HSA through a static quenching mechanism. Thermodynamic parameters exhibited that the binding constant of AHTN and HSA is of the order of 10^4 L/mol, and the binding is a spontaneous process of moderate strength with hydrophobic forces as the main driving force. Site competition revealed that AHTN binds to site I of HSA IIA subdomain, which was evidenced by the molecular docking results. AHTN altered the HSA amino acid microenvironment and conformation can be derived from three-dimensional fluorescence, circular dichroism spectroscopy, and molecular dynamics simulation. The computer simulations corroborate the experimental results positively. Moreover, AHTN acted as a competitive inhibitor to weaken the esterase-like activity of HSA, leading to impaired function of HSA. Results suggest that interactions between AHTN and HSA may affect the normal structure and activities of the protein, this insight will be helpful to provide some basic information to further explore the potential hazards of AHTN in humans.
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Affiliation(s)
- Hongzhao Xiang
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China.
| | - Qiaomei Sun
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China.
| | - Wenjing Wang
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China.
| | - Sai Li
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China.
| | - Xi Xiang
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China.
| | - Zhiqiang Li
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China; R&D Center, China Tobacco Yunnan Industrial Co., Ltd., Kunming, 650000, China.
| | - Xiaoxiang Liao
- R&D Center, China Tobacco Yunnan Industrial Co., Ltd., Kunming, 650000, China.
| | - Hui Li
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China.
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46
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Maalej A, Elloumi W, Angelov I, Kardaleva P, Dimitrov V, Chamkha M, Guncheva M, Sayadi S. Pistacia lentiscus by-product as a promising source of phenolic compounds and carotenoids: Purification, biological potential and binding properties. FOOD AND BIOPRODUCTS PROCESSING 2021. [DOI: 10.1016/j.fbp.2021.01.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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47
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Maurya N, Patel R. Comparative binding analysis of noscapine and piperine with tRNA: A structural perturbation and energetic study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 247:119089. [PMID: 33126137 DOI: 10.1016/j.saa.2020.119089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 10/05/2020] [Accepted: 10/10/2020] [Indexed: 06/11/2023]
Abstract
In this study, we have exploring the binding mechanisms of the two anticancer alkaloid noscapine (NOS) and piperine (PIP) with tRNA using different spectroscopy and computational method. Absorbance and emission spectra revealed that both the drugs show strong binding with tRNA, where NOS intercalate between the base pairs of tRNA and PIP binds in the groove of tRNA. Competitive binding study and steady state anisotropy further confirms the intercalative mode of binding between NOS and tRNA and groove binding in PIP-tRNA complex. The observed thermodynamic parameters suggested that NOS-tRNA complex formation is endothermic and entropy driven, however it was exothermic, and enthalpy driven in case of PIP-tRNA complex. CD and time resolved fluorescence studies show the structural perturbations and conformational change in tRNA structure with NOS as well as PIP. Molecular docking studies are comparable with experimental results and further confirmed that the hydrophobic interactions involved in the NOS-tRNA binding, whereas hydrogen binding and van der Waals interactions play important role in the PIP-tRNA complex formation. This study can be useful to understand the potential binding and resultant tRNA damage by alkaloids and deigned new target specific anticancer drug.
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Affiliation(s)
- Neha Maurya
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India.
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48
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Parray MUD, AlOmar SY, Alkhuriji A, Wani FA, Parray ZA, Patel R. Refolding of guanidinium hydrochloride denatured bovine serum albumin using pyridinium based ionic liquids as artificial chaperons. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125737] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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49
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Liu R, Wu L, Feng H, Tang F, Si H, Yao X, He W. The study on the interactions of two 1,2,3-triazoles with several biological macromolecules by multiple spectroscopic methodologies and molecular docking. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 243:118795. [PMID: 32814256 DOI: 10.1016/j.saa.2020.118795] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/18/2020] [Accepted: 07/26/2020] [Indexed: 06/11/2023]
Abstract
1-(4-chlorophenyl)-5-phenyl-1H-1,2,3-triazole (CPTC) and 5-(3-chlorophenyl) -1-phenyl-1H-1,2,3-triazole (PCTA) are two new derivatives of 1,2,3-triazole. Their structural and spectral properties were characterized by density functional theory calculations (DFT). The binding properties of CPTC or PCTA with several typical biomacromolecules such as human serum albumin (HSA), bovine hemoglobin (BHb), human immunoglobulin (HIgG) or DNA were investigated by molecular docking and multiple spectroscopic methodologies. The different parameters including binding constants and thermodynamic parameters for CPTC/PCTA-HSA/BHb/HIgG/DNA systems were obtained based on various fluorescence enhancement or quenching mechanisms. The results of binding constants indicated that there were the strong interactions between two triazoles and four biological macromolecules due to the higher order of magnitude between 103 and 105. The values of thermodynamic parameters revealed that the binding forces for these systems are mainly hydrophobic interactions, electrostatic force, or hydrogen bond, respectively, which are in agreement with the results of molecular docking to a certain extent. Moreover, the information from synchronous, 3D fluorescence and UV-Vis spectroscopies proved that two compounds CPTC and PCTA could affect the microenvironment of amino acids residues of three kinds of proteins. Based on the above experimental results, a comparison of the interaction mechanisms for CPTC/PCTA-proteins/DNA systems have been performed in view of their different molecular structures, which is beneficial for the further research in order to design them as the novel drugs.
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Affiliation(s)
- Rongqiang Liu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, 571158 Haikou, China
| | - Luyong Wu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, 571158 Haikou, China
| | - Huajie Feng
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, 571158 Haikou, China
| | - Fengqi Tang
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, 571158 Haikou, China
| | - Hongzong Si
- Institute for Computational Science and Engineering, Qingdao University, 266071 Qingdao, China
| | - Xiaojun Yao
- College of Chemical and Chemical Engineering, Lanzhou University, 730000 Lanzhou, China
| | - Wenying He
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, 571158 Haikou, China.
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50
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Badar A, Arif Z, Qais FA, Islam SN, Alam K. Carbamylation of human serum albumin generates high-molecular weight aggregates: fine characterization by multi-spectroscopic methods and electron microscopy. Int J Biol Macromol 2020; 164:2380-2388. [PMID: 32795577 DOI: 10.1016/j.ijbiomac.2020.08.083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/08/2020] [Accepted: 08/08/2020] [Indexed: 02/08/2023]
Abstract
Carbamylation is the non-enzymatic reaction between isocyanic acid and macromolecules (mainly proteins) which results in carbamylation-derived products (CDPs) generation, wherein the macromolecules show altered structure and function. In this study, we examined the modifications caused in human serum albumin (HSA) upon interaction with potassium cyanate (KCNO). HSA was incubated with varying concentrations of KCNO for 6 h at 37 °C. The resultant product was characterized by biochemical and biophysical techniques. Among other changes, the carbamylated-HSA showed homocitrulline generation (LC-MS), increase in mass (DLS), and amyloidogenic aggregate formation (Congo red, SEM, TEM). The Gibb's free energy was calculated to be -2.91 to -3.95 kcal mol-1, suggesting that the binding was spontaneous and energetically favourable. The results indicate that in chronic kidney disease patients, elevated levels of isocyanic acid (formed from urea) may modify the albumin structure and lead to its conversion into amyloidogenic aggregates, thus accelerating kidney damage.
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Affiliation(s)
- Asim Badar
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Zarina Arif
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Shireen Naaz Islam
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Khursheed Alam
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.
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