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Mashrai A, Manea YK, Mahmood A. Insight into the interaction of 5,6 epoxy-cholesterols with human serum albumin. Arch Biochem Biophys 2024; 756:109993. [PMID: 38636691 DOI: 10.1016/j.abb.2024.109993] [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: 12/31/2023] [Revised: 03/15/2024] [Accepted: 04/12/2024] [Indexed: 04/20/2024]
Abstract
5,6-Epoxy-cholesterols has been recently revealed to control metabolic pathway in breast cancer, which makes investigating their binding interaction with human serum albumin (HSA) an attractive field of research. The main aim of this article is to examine the binding interaction of 5,6 α-epoxy-cholesterol (5,6 α EC) and 5,6 β-epoxy-cholesterol (5,6 β- EC) with HSA using different spectroscopic methods and molecular modeling. These compounds interact with HSA via hydrophobic interactions and hydrogen bonds with binding constants 6.3 × 105 M-1 for 5,6 α-epoxy-cholesterol and 6.9 × 105 M-1 for 5,6 β-epoxy-cholesterol besides, the mechanism of the interaction can be attributed to static quenching. Circular dichroism data indicated that the α-helical content of HSA increased from 50.5 to 59.8 and 61.1 % after the addition of 5,6 α-ECs and 5,6 β-EC, respectively, with a ratio of 1:2. Thermodynamic analysis revealed that binding between 5,6-epoxy-cholesterols and HSA is spontaneous and entropy-driven. The molecular docking and esterase-like activity experiments were performed to envision a link between the experimental and theoretical results. The optimal binding site of 5,6-epoxy-cholesterols with HSA was located in subdomain IIA. Moreover, theoretical calculations were performed using the B3LYP function with the 6-311++G (d,p) basis set, indicating the HOMO-LUMO energy gap of 7.874 eV for 5,6 α-epoxy-cholesterol and 7.873 eV for 5,6 β-epoxy-cholesterol. The obtained findings are assumed to provide basic data for understanding the binding interactions of HSA with oxysterol compounds, which could help explore the pharmacokinetics and pharmacodynamics of oxysterol compounds.
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Affiliation(s)
- Ashraf Mashrai
- Department of Pharmacy, University of Science and Technology, Ibb, Yemen
| | - Yahiya Kadaf Manea
- Department of Chemistry, Aligarh Muslim University, Aligarh, India; Department of Chemistry, University of Aden, Aden, Yemen.
| | - Ayyaz Mahmood
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
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2
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Gogoi NG, Rahman A, Dutta P, Saikia J, Baruah A, Handique JG. Design, Synthesis, Biological Evaluation and in Silico Studies of Curcumin Pyrrole Conjugates. Chem Biodivers 2024; 21:e202301605. [PMID: 38488861 DOI: 10.1002/cbdv.202301605] [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: 10/13/2023] [Accepted: 03/13/2024] [Indexed: 04/12/2024]
Abstract
Curcumin conjugated heterocyclic compounds are potent candidates with drug likeness against various bacterial pathogens. A set of curcumin-based pyrrole conjugates (CPs) were synthesized and characterized by FT-IR, 1H and 13C NMR and HR-MS techniques. The results of free radical scavenging activity of the synthesized CPs, evaluated by FRAP and CUPRAC assays, showed the potency of these compounds as effective antioxidants. CP3 exhibits the highest antioxidant activity amongst the CPs. The bactericidal efficacy of CPs was screened against ESKAP bacterial pathogens, and CPs were found to possess better antibacterial property than curcumin, specifically against staphylococcus aureus bacteria. In addition, serum albumin (BSA and HSA) binding interaction of these CPs were determined by UV-visible and fluorescence spectrophotometric techniques. In-silico molecular docking study was performed to determine the binding patterns of molecular targets against Staphylococcus aureus tyrosyl tRNA synthetase, and serum albumin proteins. The structure-activity relationship showed that the presence of multiple phenolic hydroxyl groups, and electron withdrawing groups on the structure of CP molecule, enhances its antioxidant and antibacterial activity, respectively.
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Affiliation(s)
- Nishi Gandha Gogoi
- Department of Chemistry, Dibrugarh University, Dibrugarh, 786004, Assam, India
- Department of Chemistry, Manohari Devi Kanoi Girls College, Dibrugarh, 786001, Assam, India
| | - Aziza Rahman
- Department of Chemistry, Dibrugarh University, Dibrugarh, 786004, Assam, India
| | - Pankaj Dutta
- Department of Physics, Dibrugarh University, Dibrugarh, 786004, Assam, India
| | - Jiban Saikia
- Department of Chemistry, Dibrugarh University, Dibrugarh, 786004, Assam, India
| | - Anupaul Baruah
- Department of Chemistry, Dibrugarh University, Dibrugarh, 786004, Assam, India
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Sonpasare K, Lalchandani DS, Chenkual L, Sathala PK, Khatoon R, Porwal PK. Effect of glycation-induced concentration-dependent change in albumin structure and alteration in its binding capacity. J Biomol Struct Dyn 2024:1-10. [PMID: 38381667 DOI: 10.1080/07391102.2024.2316783] [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: 11/20/2023] [Accepted: 02/03/2024] [Indexed: 02/23/2024]
Abstract
Reducing sugars causes confirmatory alterations in albumin structure by the nonenzymatic glycation of the amino group of serum albumin. In this study, glucose and its hazardous metabolic products like glyoxal and methylglyoxal were incubated with bovine serum albumin (BSA). The confirmational changes in BSA molecule's structure by glycating substances was investigated using a variety of spectroscopic methods, including deconvolutionFourier Transform Infra-red (FT-IR) spectroscopy, fluorescence spectroscopy, UV spectroscopy and circular dichroism (CD) spectroscopy. Dynamic fluorescence quenching was observed in the case of glucose, while static quenching was observed in the case of methyl glyoxal and glyoxal. Similarly, employing deconvolution FT-IR spectroscopy and CD spectroscopy for determination of change in secondary structures in terms signature of α-helix, β-turn, β-sheet and random coil modifications. Destabilization or unfolding of the albumin structure, due to the disruption of the hydrogen bonding pattern that stabilizes the albumin manifold, causes a 25-50% reduction in α-helix and a 2-fold increase in β-sheet and turns in glycated BSA. The competitive displacement interaction studies with warfarin were performed using the ultrafiltration technique and quantitative determination of free drug in ultrafiltrate using LC-MS/MS. The binding of carbamazepine (CBZ) or its active metabolite to proteins was unaffected by the glycation of BSA with glucose and methyl glyoxal. Nevertheless, with glyoxal-modified BSA, it changed the binding of selected analytes significantly. Based on in vitro observations and results, it could be anticipated that the serum CBZ concentration variation may be worsened in uncontrolled diabetes circumstances, with an overall variance of 30-40% possible.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Kailas Sonpasare
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Guwahati (NIPER-G), Guwahati, Assam, India
| | - Dimple S Lalchandani
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Guwahati (NIPER-G), Guwahati, Assam, India
| | - Laltanpuii Chenkual
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Guwahati (NIPER-G), Guwahati, Assam, India
| | - Pavan Kumar Sathala
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Guwahati (NIPER-G), Guwahati, Assam, India
| | - Raheema Khatoon
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Guwahati (NIPER-G), Guwahati, Assam, India
| | - Pawan Kumar Porwal
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Guwahati (NIPER-G), Guwahati, Assam, India
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Kowalik M, Masternak J, Olszewski M, Maciejewska N, Kazimierczuk K, Sitkowski J, Dąbrowska AM, Chylewska A, Makowski M. Anticancer Study on Ir III and Rh III Half-Sandwich Complexes with the Bipyridylsulfonamide Ligand. Inorg Chem 2024; 63:1296-1316. [PMID: 38174357 DOI: 10.1021/acs.inorgchem.3c03801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Organometallic half-sandwich complexes [(η5-Cp)IrCl(L)]PF6 (1) and [(η5-Cp)RhCl(L)]PF6 (2) were prepared using pentamethylcyclopentadienyl chloride dimers of iridium(III) or rhodium(III) with the 4-amino-N-(2,2'-bipyridin-5-yl)benzenesulfonamide ligand (L) and ammonium hexafluorophosphate. The crystal structures of L, 1, and 2 were analyzed in detail. The coordination reactions of the ligand with the central ions were confirmed using various spectroscopic techniques. Additionally, the interactions between sulfaligand, Ir(III), and Rh(III) complexes with carbonic anhydrase (CA), human serum albumin (HSA), and CT-DNA were investigated. The iridium(III) complex (1) did not show any antiproliferative properties against four different cancer cell lines, i.e., nonsmall cell lung cancer A549, colon cancer HCT-116, breast cancer MCF7, lymphoblastic leukemia Nalm-6, and a nonmalignant human embryonic kidney cell line HEK293, due to high binding affinity to GSH. The sulfonamide ligand (L) and rhodium(III) complex (2) were further studied. L showed competitive inhibition toward CA, while complexes 1 and 2, uncompetitive. All compounds interacted with HSA, causing a conformational change in the protein's α-helical structure, suggesting the induction of a more open conformation in HSA, reducing its biological activity. Both L and 2 were found to induce cell death through a caspase-dependent pathway. These findings position L and 2 as potential starting compounds for pharmaceutical, therapeutic, or medicinal research.
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Affiliation(s)
- Mateusz Kowalik
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Joanna Masternak
- Institute of Chemistry, Jan Kochanowski University in Kielce, Uniwersytecka 7, 25-406 Kielce, Poland
| | - Mateusz Olszewski
- Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Natalia Maciejewska
- Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Katarzyna Kazimierczuk
- Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Jerzy Sitkowski
- Institute of Organic Chemistry, Polish Academic of Science, Marcina Kasprzaka 44/52, 01-224 Warszawa, Poland
- National Medicines Institute, Chełmska 30/34, 00-725 Warszawa, Poland
| | | | - Agnieszka Chylewska
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Mariusz Makowski
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
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Gao Y, Bian C, Li N, Yao K, Xiao L, Yang Z, Guan T. Exploring the binding mechanism and adverse toxic effects of chiral phenothrin to human serum albumin: Based on multi-spectroscopy, biochemical and computational approach. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 282:121659. [PMID: 35930945 DOI: 10.1016/j.saa.2022.121659] [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: 06/11/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
To understand the binding mechanism of a mixture of chiral phenothrin with human serum albumin (HSA), we used multi-spectroscopy, including steady-state fluorescence spectroscopic titration, three-dimensional fluorescence spectroscopy, circular dichroism, and FTIR spectra to explore the precise interactions between the complex. Based on the modified Stern-Volmer equation, the binding constant (Ka) was calculated under three temperatures, which revealed that phenothrin interacts with HSA through a static quenching mechanism. The thermodynamic parameters including enthalpy change (ΔH) and entropy change (ΔS) were determined by fitting the experimental data with van't Hoff equation, which indicates that electrostatic force and hydrogen bonds dominate the interplay in the phenothrin-HSA complex. Circular dichroism and FTIR showed the addition of phenothrin changed the secondary structure of proteins, in which the α-helicity decreased from 52.37% in free HSA to 50.02%. The esterase-like activity was reduced with the increase of phenothrin concentration, which may be attributed to the perturbated senior structure of HSA. Competitive displacement experiments confirmed that phenothrin inserted into the subdomain IIA (site I) of HSA. Several computational approaches such as molecular docking, frontier molecular orbital analysis, and electrostatic potential analysis were utilized to probe into the binding mode of the phenothrin-HSA complex. The binding behaviors of the chiral phenothrin mixture differed during the complexation. In conclusion, both the experimental and theoretical investigations provide useful information for better understanding and reducing the potential deleterious effects of the chiral phenothrin mixture on human long-term physio-pathological status.
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Affiliation(s)
- Ya Gao
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Canfeng Bian
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Ning Li
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Kun Yao
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Lixia Xiao
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Zhenquan Yang
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China.
| | - Tianzhu Guan
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China.
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Hu L, Cao H, He B, Zheng L, Li R. Exploring the interaction of sesamol as an antilung cancer compound with albumin through spectroscopic and bioinformatic analyses and the mechanism of anticancer effect. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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7
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Masternak J, Gilewska A, Kowalik M, Kazimierczuk K, Sitkowski J, Okła K, Wietrzyk J, Barszcz B. Synthesis, crystal structure and spectroscopic characterization of new anionic iridium(III) complexes and their interaction with biological targets. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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8
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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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de Barros WA, Silva MDM, Dantas MDDA, Santos JCC, Figueiredo IM, Chaves OA, Sant’Anna CMR, de Fátima Â. Recreational drugs 25I-NBOH and 25I-NBOMe bind to both Sudlow's sites I and II of human serum albumin (HSA): biophysical and molecular modeling studies. NEW J CHEM 2021. [DOI: 10.1039/d1nj00806d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
25I-NBOH and 25I-NBOMe simultaneously bind to sites I and II of HSA, which may affect their distribution and effects.
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Affiliation(s)
- Wellington Alves de Barros
- Departamento de Química
- Instituto de Ciências Exatas
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
| | | | | | | | | | - Otávio Augusto Chaves
- Departamento de Química Fundamental
- Instituto de Química
- Universidade Federal Rural do Rio de Janeiro
- Seropédica
- Brazil
| | - Carlos Mauricio R. Sant’Anna
- Departamento de Química Fundamental
- Instituto de Química
- Universidade Federal Rural do Rio de Janeiro
- Seropédica
- Brazil
| | - Ângelo de Fátima
- Departamento de Química
- Instituto de Ciências Exatas
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
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9-N-substituted novel berberine derivative for selective and sensitive nanomolar level fluorometric detection of human hemoglobin: A synthesis, sensing and interaction study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Tang CH. Nanocomplexation of proteins with curcumin: From interaction to nanoencapsulation (A review). Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.106106] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Huang S, Luo H, Su W, Xiao Q, Xie J. Comparative study of binding interactions between three organometallic rhodium(III) complexes with curcuminoid ligands and human serum albumin. J Mol Recognit 2020; 34:e2876. [PMID: 32974948 DOI: 10.1002/jmr.2876] [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: 07/22/2020] [Revised: 08/21/2020] [Accepted: 09/02/2020] [Indexed: 11/06/2022]
Abstract
Organometallic rhodium(III) complexes with curcuminoid ligands attracted considerable attention in biological-related fields and the variation of curcuminoid ligands may regulate the biological activity of these organometallic rhodium(III) complexes. To deeply evaluate the biological influences of these complexes, the binding interactions between three rhodium(III) complexes with curcuminoid ligands and human serum albumin (HSA) were comparably investigated by spectroscopic and electrochemical techniques. The results suggested that the intrinsic fluorescence of HSA was quenched by three complexes through static fluorescence quenching mode. Three complexes bonded with Sudlow's site I of HSA to form ground-state compounds under the binding forces of van der Waals interactions, hydrogen bonds formation, and protonation. Finally, the native conformational structure and the thermal stability of HSA were all changed. Space steric hindrance of complexes took part in the differences of the fluorescence quenching processes, and the chemical polarity of the complexes played a vital role in the variations of the structure and biological activity of HSA. These results illustrated the molecular interactions between protein and organometallic rhodium(III) complexes with curcuminoid ligands, offering new insight about the prospective applications of analogical rhodium(III) complexes in biomedicine areas.
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Affiliation(s)
- Shan Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, P. R. China
| | - Huajian Luo
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, P. R. China
| | - Wei Su
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, P. R. China
| | - Qi Xiao
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, P. R. China
| | - Jiangning Xie
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, P. R. China
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Dezhampanah H, Shabanzade Z. Investigation of binding interaction between human serum albumin with zirconium complex of curcumin and curcumin. J Biomol Struct Dyn 2020; 40:722-732. [PMID: 32930062 DOI: 10.1080/07391102.2020.1819421] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The current study investigates the binding process of Zr(CUR) as a novel six-coordinate complex of zirconium with curcumin ligand and curcumin (CUR); as the main pharmacologically active ingredient of turmeric to human serum albumin (HSA); using fluorescence spectroscopy, infrared spectroscopy and molecular docking techniques. The fluorimetric results revealed that Zr(CUR) and CUR could effectively quench the endogenous fluorescence of HSA, formed a 1:1 complex, with a static quenching mechanism. The distance between donor (HSA) and acceptor (Zr(CUR) and CUR) were determined to be 3.15 nm for Zr(CUR) and 2.95 nm for CUR on the basis of the Forester's theory of non-radiative energy transfer. Results of the infrared absorption spectrum show that the secondary structure of HSA changes for both types. Molecular docking results indicated that for structure with minimum binding energy Zr(CUR) and CUR are in the position between IIA and IIIA. Also, a docking study showed that Zr(CUR) and CUR have several hydrogen bonds and Van der Waals contact with HSA.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Hamid Dezhampanah
- Department of Chemistry, Faculty of Science, University of Guilan, Rasht, Iran
| | - Zahra Shabanzade
- Department of Chemistry, Faculty of Science, University of Guilan, Rasht, Iran
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14
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Insights into protein-curcumin interactions: Kinetics and thermodynamics of curcumin and lactoferrin binding. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105825] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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15
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16
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Gao Y, Shi Y, Wang L, Kong S, Du J, Lin G, Feng Y. Advances in mathematical models of the active targeting of tumor cells by functional nanoparticles. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2020; 184:105106. [PMID: 31670178 DOI: 10.1016/j.cmpb.2019.105106] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 09/30/2019] [Accepted: 10/01/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND AND OBJECTIVE The process of nanoparticles (NPs) entering blood circulation to actively target tumor cells involves four stages-the transport of NPs in blood vessels, transvascular transport of NPs, transport of NPs in the tumor interstitial matrix and entry of NPs into tumor cells. These four stages are a complex process involving mechanical, physical, biochemical, and biophysical factors, the tumor microenvironment (TME) and properties of NPs play important roles in this process. Because this process involves a large number of factors and is very complex, it is difficult to study with conventional methods. METHODS Using mathematical models for simulation is suitable for addressing this complex situation and can describe the complexity well. RESULTS This work focuses on the theoretical simulation of NPs that target tumor cells to illustrate the effects of the abnormal microenvironment of tumors and properties of NPs on the transport process. Mathematical models constructed by different methods are enumerated. Through studying these mathematical models, different methods to overcome nanoparticle (NP) transport obstacles are illustrated. CONCLUSIONS It is necessary to construct a theoretical model of active targeting nanodrug delivery under the coupling of micro-flow field and specific binding force field, and to simulate and analyze the delivery process at mesoscopic scale using computational fluid dynamics (CFD) method, so as to reveal the law and characteristics of drug delivery and cell uptake in the micro-environment of tumors in vivo. The methods and techniques discussed can serve as the basis for systematic studies of active targeting of functional nanoparticles to tumor cells.
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Affiliation(s)
- Yan Gao
- School of Mechanical & Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Yanbin Shi
- School of Mechanical & Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Li Wang
- School of Mechanical & Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Shengli Kong
- School of Mechanical & Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Jian Du
- School of Mechanical & Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Guimei Lin
- School of Pharmaceutical Science, Shandong University, Jinan 250012, China
| | - Yihua Feng
- School of Mechanical & Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
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Naghdi T, Golmohammadi H, Vosough M, Atashi M, Saeedi I, Maghsoudi MT. Lab-on-nanopaper: An optical sensing bioplatform based on curcumin embedded in bacterial nanocellulose as an albumin assay kit. Anal Chim Acta 2019; 1070:104-111. [DOI: 10.1016/j.aca.2019.04.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 04/08/2019] [Accepted: 04/16/2019] [Indexed: 12/27/2022]
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18
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Usoltsev D, Sitnikova V, Kajava A, Uspenskaya M. Systematic FTIR Spectroscopy Study of the Secondary Structure Changes in Human Serum Albumin under Various Denaturation Conditions. Biomolecules 2019; 9:biom9080359. [PMID: 31409012 PMCID: PMC6723850 DOI: 10.3390/biom9080359] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/08/2019] [Accepted: 08/09/2019] [Indexed: 11/16/2022] Open
Abstract
Human serum albumin (HSA) is the most abundant protein in blood plasma. HSA is involved in the transport of hormones, fatty acids, and some other compounds, maintenance of blood pH, osmotic pressure, and many other functions. Although this protein is well studied, data about its conformational changes upon different denaturation factors are fragmentary and sometimes contradictory. This is especially true for FTIR spectroscopy data interpretation. Here, the effect of various denaturing agents on the structural state of HSA by using FTIR spectroscopy in the aqueous solutions was systematically studied. Our data suggest that the second derivative deconvolution method provides the most consistent interpretation of the obtained IR spectra. The secondary structure changes of HSA were studied depending on the concentration of the denaturing agent during acid, alkaline, and thermal denaturation. In general, the denaturation of HSA in different conditions is accompanied by a decrease in α-helical conformation and an increase in random coil conformation and the intermolecular β-strands. Meantime, some variation in the conformational changes depending on the type of the denaturation agent were also observed. The increase of β-structural conformation suggests that HSA may form amyloid-like aggregates upon the denaturation.
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Affiliation(s)
- Dmitrii Usoltsev
- Department of Applied Optics, ITMO University, 49 Kronverksky Pr., St.-Petersburg 197101, Russia
| | - Vera Sitnikova
- Department of Applied Optics, ITMO University, 49 Kronverksky Pr., St.-Petersburg 197101, Russia.
- International Research Institute of Bioengineering, ITMO University, 49 Kronverksky Pr., 197101 St.-Petersburg, Russia.
| | - Andrey Kajava
- International Research Institute of Bioengineering, ITMO University, 49 Kronverksky Pr., 197101 St.-Petersburg, Russia
- Centre de Recherche en Biologie cellulaire de Montpellier (CRBM), UMR 5237 CNRS, Universit Montpellier 1919 Route de Mende, CEDEX 5, 34293 Montpellier, France
| | - Mayya Uspenskaya
- Department of Applied Optics, ITMO University, 49 Kronverksky Pr., St.-Petersburg 197101, Russia
- International Research Institute of Bioengineering, ITMO University, 49 Kronverksky Pr., 197101 St.-Petersburg, Russia
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Paul S, Ghanti R, Sardar PS, Majhi A. Synthesis of a novel coumarin derivative and its binding interaction with serum albumins. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02505-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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20
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Similarities and differences in d 6 low-spin ruthenium, rhodium and iridium half-sandwich complexes: synthesis, structure, cytotoxicity and interaction with biological targets. J Biol Inorg Chem 2019; 24:591-606. [PMID: 31115765 PMCID: PMC6598960 DOI: 10.1007/s00775-019-01665-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 05/08/2019] [Indexed: 11/27/2022]
Abstract
In this paper, we discussed the similarities and differences in d6 low-spin half-sandwich ruthenium, rhodium and iridium complexes containing 2,2′-biimidazole (H2biim). Three new complexes, {[RuCl(H2biim)(η6-p-cymene)]PF6}2·H2O (1), [(η5-Cp)RhCl(H2biim)]PF6 (2), and [(η5-Cp)IrCl(H2biim)]PF6 (3), were fully characterized by CHN, X-ray diffraction analysis, UV–Vis, FTIR, and 1H, 13C and 15N NMR spectroscopies. The complexes exhibit a typical pseudooctahedral piano-stool geometry, in which the aromatic arene ring (p-cymene or Cp) forms the seat, while the bidentate 2,2′-biimidazole and chloride ion form the three legs of the piano stool. Moreover, the cytotoxic activities of the compounds were examined in the LoVo, HL-60, MV-4-11, MCF-7 human cancer cell lines and BALB/3T3 normal mouse fibroblasts. Notably, the investigated complexes showed no cytotoxic effects towards the normal BALB/3T3 cell line compared to cisplatin, which has an IC50 value of 2.20 µg. Importantly, 1 displayed the highest activity against HL-60 (IC50 4.35 µg). To predict a binding mode, we explored the potential interactions of the metal complexes with CT-DNA and protein using UV absorption and circular dichroism. The obtained data suggest that the complexes could interact with CT-DNA via an outside binding mode. Moreover, binding of the complexes with the GSH via UV–Vis and ESI mass spectra was determined. Comparative studies have shown that the rhodium complex (2) is the most GSH reactive, which is probably responsible for its deactivation towards LoVo and MCF-7 tumour cells. The influence of the metal ion on the biological activity of isostructural Rh(III) and Ir(III) complexes was an important goal of the presented investigation.
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Yang Y, Zhang N, Sun Y, Li J, Zhao R, Zheng Z, Ding Y, Zhang X, Geng D, Sun Y. Multispectroscopic and molecular modeling studies on the interaction of bile acids with bovine serum albumin (BSA). J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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22
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Mészáros JP, Poljarevic JM, Gál GT, May NV, Spengler G, Enyedy ÉA. Comparative solution and structural studies of half-sandwich rhodium and ruthenium complexes bearing curcumin and acetylacetone. J Inorg Biochem 2019; 195:91-100. [PMID: 30928657 DOI: 10.1016/j.jinorgbio.2019.02.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 02/15/2019] [Accepted: 02/26/2019] [Indexed: 01/29/2023]
Abstract
Half-sandwich organometallic complexes of curcumin are extensively investigated as anticancer compounds. Speciation studies were performed to explore the solution stability of curcumin complexes formed with [Rh(η5-C5Me5)(H2O)3]2+. Acetylacetone (Hacac), as the simplest β-diketone ligand bearing (O,O) donor set, was involved for comparison and its Ru(η6‑p‑cymene), Ru(η6‑toluene) complexes were also studied. 1H NMR, UV-visible and pH-potentiometric titrations revealed a clear trend of stability constants of the acac complexes: Ru(η6‑p‑cymene) > Ru(η6‑toluene) > Rh(η5-C5Me5). Despite this order, the highest extent of complex formation is seen for the Rh(η5-C5Me5) complexes at pH 7.4. Formation constant of [Rh(η5-C5Me5)(H2curcumin)(H2O)]+ reveals similar solution stability to that of the acac complex. Additionally, structures of two complexes were determined by X-ray crystallography. The in vitro cytotoxicity of curcumin was not improved by the complexation with these organometallic cations.
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Affiliation(s)
- János P Mészáros
- Department of Inorganic and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - Jelena M Poljarevic
- Department of Inorganic and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary; University of Belgrade - Faculty of Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - G Tamás Gál
- Research Centre for Natural Sciences Hungarian Academy of Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary
| | - Nóra V May
- Research Centre for Natural Sciences Hungarian Academy of Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary
| | - Gabriella Spengler
- Department of Medical Microbiology and Immunobiology, University of Szeged, Dóm tér 10, H-6720 Szeged, Hungary
| | - Éva A Enyedy
- Department of Inorganic and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary.
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Upadhyay A, Yagnik B, Desai P, Dalvi SV. Microbubble-Mediated Enhanced Delivery of Curcumin to Cervical Cancer Cells. ACS OMEGA 2018; 3:12824-12831. [PMID: 30411020 PMCID: PMC6217580 DOI: 10.1021/acsomega.8b01737] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Accepted: 09/24/2018] [Indexed: 05/19/2023]
Abstract
The major bottleneck in the current chemotherapy treatment of cancer is the low bioavailability and high cytotoxicity. Targeted delivery of drug to the cancer cells can reduce the cytotoxicity and increase the bioavailability. In this context, microbubbles are currently being explored as drug-delivery vehicles to effectively deliver drug to the tumors or cancerous cells. Microbubbles when used along with ultrasound can enhance drug uptake and inhibit the growth of tumor cells. Several potential anticancer molecules exhibit poor water solubility, which limits their use in therapeutic applications. Such poorly water soluble molecules can be coadministered with microbubbles or encapsulated within or loaded on the microbubbles surface, to enhance the effectiveness of these molecules against cancer cells. Curcumin is one of such potential anticancer molecules obtained from the rhizome of herbal spice, turmeric. In this work, curcumin-loaded protein microbubbles were synthesized and examined for effective in vitro delivery of curcumin to HeLa cells. Microbubbles in the size range of 1-10 μm were produced using perfluorobutane as core gas and bovine serum albumin (BSA) as shell material and were loaded with curcumin. The amount of curcumin loaded on the microbubble surface was estimated using UV-vis spectroscopy, and the average curcumin loading was found to be ∼54 μM/108 microbubbles. Kinetics of in vitro curcumin release from microbubble surface was also estimated, where a 4-fold increase in the rate of curcumin release was obtained in the presence of ultrasound. Sonication and incubation of HeLa cells with curcumin-loaded BSA microbubbles enhanced the uptake of curcumin by ∼250 times. Further, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay confirmed ∼71% decrease in cell viability when HeLa cells were sonicated with curcumin-loaded microbubbles and incubated for 48 h.
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Affiliation(s)
- Awaneesh Upadhyay
- Chemical
Engineering, IIT Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India
| | - Bhrugu Yagnik
- B.V.
Patel Pharmaceutical Education and Research Development (PERD) Centre, Thaltej, Ahmedabad 380054, Gujarat, India
| | - Priti Desai
- B.V.
Patel Pharmaceutical Education and Research Development (PERD) Centre, Thaltej, Ahmedabad 380054, Gujarat, India
| | - Sameer V. Dalvi
- Chemical
Engineering, IIT Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India
- E-mail:
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24
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Liu Y, Cai Y, Ying D, Fu Y, Xiong Y, Le X. Ovalbumin as a carrier to significantly enhance the aqueous solubility and photostability of curcumin: Interaction and binding mechanism study. Int J Biol Macromol 2018; 116:893-900. [DOI: 10.1016/j.ijbiomac.2018.05.089] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 05/12/2018] [Accepted: 05/14/2018] [Indexed: 12/27/2022]
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25
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Shaikh SAM, Singh BG, Barik A, Ramani MV, Balaji NV, Subbaraju GV, Naik DB, Indira Priyadarsini K. Diketo modification of curcumin affects its interaction with human serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 199:394-402. [PMID: 29635184 DOI: 10.1016/j.saa.2018.03.085] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 03/26/2018] [Accepted: 03/30/2018] [Indexed: 06/08/2023]
Abstract
Curcumin isoxazole (CI) and Curcumin pyrazole (CP), the diketo modified derivatives of Curcumin (CU) are metabolically more stable and are being explored for pharmacological properties. One of the requirements in such activities is their interaction with circulatory proteins like human serum albumin (HSA). To understand this, the interactions of CI and CP with HSA have been investigated employing absorption and fluorescence spectroscopy and the results are compared with that of CU. The respective binding constants of CP, CI and CU with HSA were estimated to be 9.3×105, 8.4×105 and 2.5×105M-1, which decreased with increasing salt concentration in the medium. The extent of decrease in the binding constant was the highest in CP followed by CI and CU. This revealed that along with hydrophobic interaction other binding modes like electrostatic interactions operate between CP/CI/CU with HSA. Fluorescence quenching studies of HSA with these compounds suggested that both static and dynamic quenching mechanisms operate, where the contribution of static quenching is higher for CP and CI than that for CU. From fluorescence resonance energy transfer studies, the binding site of CU, CI and CP was found to be in domain IIA of HSA. CU was found to bind in closer proximity with Trp214 as compared to CI and CP and the same was responsible for efficient energy transfer and the same was also established by fluorescence anisotropy measurements. Furthermore docking simulation complemented the experimental observation, where both electrostatic as well as hydrophobic interactions were indicated between HSA and CP, CI and CU. This study is useful in designing more stable CU derivatives having suitable binding properties with proteins like HSA.
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Affiliation(s)
- Shaukat Ali M Shaikh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Beena G Singh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - Atanu Barik
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | | | - Neduri V Balaji
- Natsol Laboratories, J.N. Pharmacity, Visakhapatnam 531019, India
| | | | - Devidas B Naik
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
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26
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Hudson EA, de Paula HMC, Ferreira GMD, Ferreira GMD, Hespanhol MDC, da Silva LHM, Pires ACDS. Thermodynamic and kinetic analyses of curcumin and bovine serum albumin binding. Food Chem 2018; 242:505-512. [DOI: 10.1016/j.foodchem.2017.09.092] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 08/11/2017] [Accepted: 09/18/2017] [Indexed: 10/18/2022]
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27
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Huang S, Xie J, Su W, Liu Y, Wang X, Hu B, Xiao Q. Comparative investigation of interactions between two ruthenium(II) arene PTA type complexes with curcuminoid ligands and human serum albumin. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.10.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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28
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Huang S, Xie J, Cui J, Liu L, Liang Y, Liu Y, Xiao Q. Comparative investigation of binding interactions between three steroidal compounds and human serum albumin: Multispectroscopic and molecular modeling techniques. Steroids 2017; 128:136-146. [PMID: 28962852 DOI: 10.1016/j.steroids.2017.09.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 09/10/2017] [Accepted: 09/23/2017] [Indexed: 02/06/2023]
Abstract
Steroidal compounds have attracted great attentions in biomedical and pharmacological areas. The investigation of structural influences during protein-compound interactions helps in understanding both the biological effects and the mechanism behind bioactivities of steroidal compounds. Herein, the structural influences of three steroidal complexes were investigated based on their binding interactions with human serum albumin (HSA) by multispectroscopic methods and molecular modeling techniques. Three steroidal compounds bonded with HSA to form three HSA-compound complexes, and van der Waals force and hydrogen bond played major roles in stabilizing these complexes. Detailed binding conformation of three steroidal compounds and HSA was further investigated by molecular modeling techniques. The changes of microenvironments and conformations of HSA were significant and the biological activity of HSA was weakened in the present of three steroidal compounds. The space steric hindrance was responsible for differences in the binding interactions between HSA and three steroidal compounds. These results provided the molecular understanding of binding interactions of protein with steroidal compounds and the strategy for research of structural influences.
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Affiliation(s)
- Shan Huang
- College of Chemistry and Materials Science, Guangxi Teachers Education University, Nanning 530001, PR China
| | - Jiangning Xie
- College of Chemistry and Materials Science, Guangxi Teachers Education University, Nanning 530001, PR China
| | - Jianguo Cui
- College of Chemistry and Materials Science, Guangxi Teachers Education University, Nanning 530001, PR China.
| | - Liang Liu
- College of Chemistry and Materials Science, Guangxi Teachers Education University, Nanning 530001, PR China
| | - Yu Liang
- College of Chemistry and Materials Science, Guangxi Teachers Education University, Nanning 530001, PR China
| | - Yi Liu
- College of Chemistry and Materials Science, Guangxi Teachers Education University, Nanning 530001, PR China
| | - Qi Xiao
- College of Chemistry and Materials Science, Guangxi Teachers Education University, Nanning 530001, PR China.
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29
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Spectroscopic and molecular modeling studies on the interactions of some benzofuran derivatives with BSA. MONATSHEFTE FUR CHEMIE 2017. [DOI: 10.1007/s00706-017-1975-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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30
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Chaves OA, Jesus CSH, Cruz PF, Sant'Anna CMR, Brito RMM, Serpa C. Evaluation by fluorescence, STD-NMR, docking and semi-empirical calculations of the o-NBA photo-acid interaction with BSA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 169:175-181. [PMID: 27376757 DOI: 10.1016/j.saa.2016.06.028] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 06/03/2016] [Accepted: 06/17/2016] [Indexed: 06/06/2023]
Abstract
Serum albumins present reversible pH dependent conformational transitions. A sudden laser induced pH-jump is a methodology that can provide new insights on localized protein (un)folding processes that occur within the nanosecond to microsecond time scale. To generate the fast pH jump needed to fast-trigger a protein conformational event, a photo-triggered acid generator as o-nitrobenzaldehyde (o-NBA) can be conveniently used. In order to detect potential specific or nonspecific interactions between o-NBA and BSA, we have performed ligand-binding studies using fluorescence spectroscopy, saturation transfer difference (STD) NMR, molecular docking and semi-empirical calculations. Fluorescence quenching indicates the formation of a non-fluorescent complex in the ground-state between the fluorophore and the quencher, but o-NBA does not bind much effectively to the protein (Ka~4.34×10(3)M(-1)) and thus can be considered a relatively weak binder. The corresponding thermodynamic parameters: ΔG°, ΔS° and ΔH° showed that the binding process is spontaneous and entropy driven. Results of (1)H STD-NMR confirm that the photo-acid and BSA interact, and the relative intensities of the signals in the STD spectra show that all o-NBA protons are equally involved in the binding process, which should correspond to a nonspecific interaction. Molecular docking and semi-empirical calculations suggest that the o-NBA binds preferentially to the Trp-212-containing site of BSA (FA7), interacting via hydrogen bonds with Arg-217 and Tyr-149 residues.
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Affiliation(s)
- Otávio A Chaves
- Departament of Chemistry, Universidade Federal Rural do Rio de Janeiro, BR 465, km 47, 23890-000 Seropédica, RJ, Brazil; CQC, Chemistry Department, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Catarina S H Jesus
- CQC, Chemistry Department, University of Coimbra, 3004-535 Coimbra, Portugal; Center for Neuroscience and Cell Biology, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Pedro F Cruz
- CQC, Chemistry Department, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Carlos M R Sant'Anna
- Departament of Chemistry, Universidade Federal Rural do Rio de Janeiro, BR 465, km 47, 23890-000 Seropédica, RJ, Brazil
| | - Rui M M Brito
- Departament of Chemistry, Universidade Federal Rural do Rio de Janeiro, BR 465, km 47, 23890-000 Seropédica, RJ, Brazil; CQC, Chemistry Department, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Carlos Serpa
- CQC, Chemistry Department, University of Coimbra, 3004-535 Coimbra, Portugal.
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31
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Tang B, Huang Y, Yang H, Tang P, Li H. Molecular mechanism of the binding of 3,4,5-tri-O-caffeoylquinic acid to human serum albumin: Saturation transfer difference NMR, multi-spectroscopy, and docking studies. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 165:24-33. [DOI: 10.1016/j.jphotobiol.2016.10.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 10/13/2016] [Accepted: 10/14/2016] [Indexed: 12/28/2022]
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32
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Li P, Tong Z, Jia Z, Su W. Preparation and characterization of hemoglobin-silver composites as biocompatible antiseptics. J Biomater Appl 2016; 31:773-783. [PMID: 27538749 DOI: 10.1177/0885328216665237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Microbial contamination has been a major challenge in a wide variety of fields such as biomedical and biomaterial applications. The development of biomaterials that possess excellent antibacterial ability and biocompatibility is of great importance to enhance the service life of biomaterials. In this study, the main protein component of red blood cells, hemoglobin (Hb), was employed to prepare Ag-Hb nanocomposites as novel biocompatible antiseptics. The formation of Ag-Hb nanocomposites on the titanium substrate are confirmed by field-emission scanning electron microscopy, Fourier transformed infrared spectroscopic, contact angles, and inductively coupled plasma atomic emission spectrometry analysis. The Ag-Hb titanium shows potent antibacterial ability against planktonic bacteria in the suspension and ability to prevent bacterial adhesion. Moreover, the Ag-Hb titanium shows excellent biocompatibility, which supports healthy osteoblast cellular activity and osteoblast differentiation. The results indicate that the Ag-Hb nanocomposites can be potentially useful for the fabrication of biomaterials for long-term applications.
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Affiliation(s)
- Peiyuan Li
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China Department of Chemistry, North Carolina State University, Raleigh, NC, USA
| | - Zhangfa Tong
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Zhiruo Jia
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Wei Su
- Key Laboratory of Environment Change and Resources Use in Beibu Gulf (Guangxi Teachers Education University), Ministry of Education, China
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33
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Wilcox KE, Blanch EW, Doig AJ. Determination of Protein Secondary Structure from Infrared Spectra Using Partial Least-Squares Regression. Biochemistry 2016; 55:3794-802. [DOI: 10.1021/acs.biochem.6b00403] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kieaibi E. Wilcox
- Manchester Institute of Biotechnology,
School of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
| | - Ewan W. Blanch
- Manchester Institute of Biotechnology,
School of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
| | - Andrew J. Doig
- Manchester Institute of Biotechnology,
School of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
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Liu BM, Zhang J, Hao AJ, Xu L, Wang D, Ji H, Sun SJ, Chen BQ, Liu B. The increased binding affinity of curcumin with human serum albumin in the presence of rutin and baicalin: A potential for drug delivery system. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 155:88-94. [PMID: 26583522 DOI: 10.1016/j.saa.2015.11.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 11/04/2015] [Accepted: 11/06/2015] [Indexed: 06/05/2023]
Abstract
The impacts of rutin and baicalin on the interaction of curcumin (CU) with human serum albumin (HSA) were investigated by fluorescence and circular dichroism (CD) spectroscopies under imitated physiological conditions. The results showed that the fluorescence quenching of HSA by CU was a simultaneous static and dynamic quenching process, irrespective of the presence or absence of flavonoids. The binding constants between CU and HSA in the absence and presence of rutin and baicalin were 2.268×10(5)M(-1), 3.062×10(5)M(-1), and 3.271×10(5)M(-1), indicating that the binding affinity was increased in the case of two flavonoids. Furthermore, the binding distance determined according to Förster's theory was decreased in the presence of flavonoids. Combined with the fact that flavonoids and CU have the same binding site (site I), it can be concluded that they may simultaneously bind in different regions in site I, and formed a ternary complex of flavonoid-HSA-CU. Meanwhile, the results of fluorescence quenching, CD and three-dimensional fluorescence spectra revealed that flavonoids further strengthened the microenvironmental and conformational changes of HSA induced by CU binding. Therefore, it is possible to develop a novel complex involving CU, flavonoid and HSA for CU delivery. The work may provide some valuable information in terms of improving the poor bioavailabiliy of CU.
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Affiliation(s)
- Bing-Mi Liu
- Department of Pharmacy, Liaoning University, Shenyang 110036, PR China.
| | - Jun Zhang
- Department of Pharmacy, Liaoning University, Shenyang 110036, PR China
| | - Ai-Jun Hao
- Department of Pharmacy, Liaoning University, Shenyang 110036, PR China
| | - Liang Xu
- Department of Pharmacy, Liaoning University, Shenyang 110036, PR China
| | - Dan Wang
- Department of Pharmacy, Liaoning University, Shenyang 110036, PR China
| | - Hui Ji
- Department of Pharmacy, Liaoning University, Shenyang 110036, PR China
| | - Shi-Jie Sun
- Department of Pharmacy, Liaoning University, Shenyang 110036, PR China
| | - Bo-Qi Chen
- Department of Pharmacy, Liaoning University, Shenyang 110036, PR China
| | - Bin Liu
- Department of Pharmacy, Liaoning University, Shenyang 110036, PR China.
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36
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Huang S, Peng S, Zhu F, Lei X, Xiao Q, Su W, Liu Y, Huang C, Zhang L. Multispectroscopic Investigation of the Interaction Between two Ruthenium(II) Arene Complexes of Curcumin Analogs and Human Serum Albumin. Biol Trace Elem Res 2016; 169:189-203. [PMID: 26170171 DOI: 10.1007/s12011-015-0416-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Accepted: 06/15/2015] [Indexed: 12/22/2022]
Abstract
The interaction between two ruthenium(II) arene complexes of curcumin analogs and human serum albumin (HSA) was systematically investigated by multispectroscopic techniques. The fluorescence spectral results indicated that two complexes quenched the intrinsic fluorescence of HSA through static quenching mode. The quenching constants and the corresponding thermodynamic parameters at different temperatures were calculated. The binding interactions of two complexes with HSA resulted in the complex formation of complex-HSA, and the van der Waals interactions and hydrogen bond interactions played major roles in the complex stabilization. The distances between HSA and two complexes were obtained according to fluorescence resonance energy transfer theory. The site competitive replacement experiments illustrated that two complexes mainly bounded with HSA on site I. The results of synchronous fluorescence spectra, three-dimensional fluorescence spectra, FT-IR spectra, and circular dichroism spectra indicated that the secondary structure of HSA was changed at the present of two complexes. The results of mass spectrometry further validated the binding interaction and the binding number between two complexes and HSA.
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Affiliation(s)
- Shan Huang
- College of Chemistry and Material Science, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China
- Collaborative Innovation Center of Southwest Ethnic Medicine, Guangxi Normal University, Guilin, 541004, People's Republic of China
| | - Shushu Peng
- College of Chemistry and Material Science, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China
| | - Fawei Zhu
- College of Chemistry and Material Science, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China
| | - Xiaolin Lei
- College of Chemistry and Material Science, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China
| | - Qi Xiao
- College of Chemistry and Material Science, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China.
- Collaborative Innovation Center of Southwest Ethnic Medicine, Guangxi Normal University, Guilin, 541004, People's Republic of China.
- State Key Laboratory of Virology, Wuhan University, Wuhan, 430072, People's Republic of China.
| | - Wei Su
- College of Chemistry and Material Science, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China
| | - Yi Liu
- State Key Laboratory of Virology, Wuhan University, Wuhan, 430072, People's Republic of China
| | - Chusheng Huang
- College of Chemistry and Material Science, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China
- Collaborative Innovation Center of Southwest Ethnic Medicine, Guangxi Normal University, Guilin, 541004, People's Republic of China
| | - Lixia Zhang
- College of Chemistry and Material Science, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China
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37
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Huang S, Qiu H, Xie J, Huang C, Su W, Hu B, Xiao Q. Systematical investigation of in vitro molecular interaction between fluorescent carbon dots and human serum albumin. RSC Adv 2016. [DOI: 10.1039/c6ra01386d] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
In vitro molecular interaction between fluorescent CDs and HSA was systematically investigated by multispectroscopic and electrochemical techniques.
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Affiliation(s)
- Shan Huang
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University)
| | - Hangna Qiu
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Jiangning Xie
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Chusheng Huang
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Wei Su
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Baoqing Hu
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University)
- Ministry of Education
- P. R. China
| | - Qi Xiao
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University)
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38
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Huang S, Peng S, Su W, Tang Z, Cui J, Huang C, Xiao Q. In vitro interaction investigation between three Ru(ii) arene complexes and human serum albumin: structural influences. RSC Adv 2016. [DOI: 10.1039/c6ra05886h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
In vitro interactions between three Ru(ii) arene complexes and human serum albumin were systematically investigated by multi-spectroscopic techniques.
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Affiliation(s)
- Shan Huang
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Shushu Peng
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Wei Su
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Zhaofeng Tang
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Jianguo Cui
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
| | - Chusheng Huang
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
- Collaborative Innovation Center of Southwest Ethnic Medicine
| | - Qi Xiao
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001
- P. R. China
- Collaborative Innovation Center of Southwest Ethnic Medicine
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Huang S, Qiu H, Liu Y, Huang C, Sheng J, Su W, Xiao Q. Molecular interaction investigation between three CdTe:Zn 2+ quantum dots and human serum albumin: A comparative study. Colloids Surf B Biointerfaces 2015; 136:955-62. [DOI: 10.1016/j.colsurfb.2015.10.028] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 10/10/2015] [Accepted: 10/19/2015] [Indexed: 02/06/2023]
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40
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Hao J, Zhang Y, Wang X, Yan H, Liu E, Gao X. Interaction between the Natural Components in Danhong Injection (DHI) with Serum Albumin (SA) and the Influence of the Coexisting Multi-Components on the SaB-BSA Binding System: Fluorescence and Molecular Docking Studies. PLoS One 2015; 10:e0128919. [PMID: 26035712 PMCID: PMC4452768 DOI: 10.1371/journal.pone.0128919] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 05/01/2015] [Indexed: 01/19/2023] Open
Abstract
Danhong injection (DHI) is a widely used Chinese Materia Medica standardized product for the clinical treatment of ischemic encephalopathy and coronary heart disease. The bindings of eight natural components in DHI between bovine serum albumin (BSA) were studied by fluorescence spectroscopy technology and molecular docking. According to the results, the quenching process of salvianolic acid B and hydroxysafflor yellow A was a static quenching procedure through the analysis of quenching data by the Stern-Volmer equation, the modified Stern-Volmer equation, and the modified Scatchard equation. Meanwhile, syringin (Syr) enhanced the fluorescence of BSA, and the data were analyzed using the Lineweaver-Burk equation. Molecular docking suggested that all of these natural components bind to serum albumin at the site I location. Further competitive experiments of SaB confirmed the result of molecular docking studies duo to the displacement of warfarin by SaB. Base on these studies, we selected SaB as a research target because it presented the strongest binding ability to BSA and investigated the influence of the multi-components coexisting in DHI on the interaction between the components of the SaB-BSA binding system. The participation of these natural components in DHI affected the interaction between the components of the SaB-BSA system. Therefore, when DHI is used in mammals, SaB is released from serum albumin more quickly than it is used alone. This work would provide a new experiment basis for revealing the scientific principle of compatibility for Traditional Chinese Medicine.
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Affiliation(s)
- Jia Hao
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, PR China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, PR China
| | - Yingyue Zhang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, PR China
| | - Xingrui Wang
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, PR China
| | - Huo Yan
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, PR China
| | - Erwei Liu
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, PR China
- * E-mail:
| | - Xiumei Gao
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, PR China
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Xu D, Wang Q, Zhang W, Hu B, Zhou L, Zeng X, Sun Y. Inhibitory activities of caffeoylquinic acid derivatives from Ilex kudingcha C.J. Tseng on α-glucosidase from Saccharomyces cerevisiae. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:3694-703. [PMID: 25805337 DOI: 10.1021/acs.jafc.5b00420] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Polyphenols and caffeoylquinic acid (CQA) derivatives (3-CQA, 4-CQA, 5-CQA, 3,4-diCQA, 3,5-diCQA, and 4,5-diCQA) were prepared from Ilex kudingcha C.J. Tseng, and their effects and mechanisms on the activities of α-glucosidase from Saccharomyces cerevisiae were investigated in the present study. As results, the IC50 values for CQA derivatives were 0.16-0.39 mg/mL, and the inhibition mode of CQA derivatives was noncompetitive. On the basis of fluorescence spectroscopy and circular dichroism spectroscopy data, the binding constants and number of binding sites were calculated to be 10(6)-10(8) M(-1) and 1.42-1.87, respectively. CQA derivatives could bind to the enzyme mainly through hydrophobic interaction, altering the microenvironment and molecular conformation of the enzyme, thus decreasing the catalytic activity. To the authors' knowledge, this is the first report on α-glucosidase inhibitory mechanism by CQA derivatives from I. kudingcha, and the findings suggest a potential use of kudingcha as functional foods for the prevention and treatment of diabetes and related symptoms.
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Affiliation(s)
- Donglan Xu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Qingchuan Wang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Wenqin Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Bing Hu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Li Zhou
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Xiaoxiong Zeng
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Yi Sun
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
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42
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In vitro study on the interaction of Mn(II)-DiAmsar with human serum albumin (HSA) and bovine serum albumin (BSA) by spectroscopic and molecular docking methods. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2014. [DOI: 10.1007/s13738-014-0530-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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