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Nedić O, Penezić A, Minić S, Radomirović M, Nikolić M, Ćirković Veličković T, Gligorijević N. Food Antioxidants and Their Interaction with Human Proteins. Antioxidants (Basel) 2023; 12:antiox12040815. [PMID: 37107190 PMCID: PMC10135064 DOI: 10.3390/antiox12040815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/22/2023] [Accepted: 03/25/2023] [Indexed: 03/29/2023] Open
Abstract
Common to all biological systems and living organisms are molecular interactions, which may lead to specific physiological events. Most often, a cascade of events occurs, establishing an equilibrium between possibly competing and/or synergistic processes. Biochemical pathways that sustain life depend on multiple intrinsic and extrinsic factors contributing to aging and/or diseases. This article deals with food antioxidants and human proteins from the circulation, their interaction, their effect on the structure, properties, and function of antioxidant-bound proteins, and the possible impact of complex formation on antioxidants. An overview of studies examining interactions between individual antioxidant compounds and major blood proteins is presented with findings. Investigating antioxidant/protein interactions at the level of the human organism and determining antioxidant distribution between proteins and involvement in the particular physiological role is a very complex and challenging task. However, by knowing the role of a particular protein in certain pathology or aging, and the effect exerted by a particular antioxidant bound to it, it is possible to recommend specific food intake or resistance to it to improve the condition or slow down the process.
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Affiliation(s)
- Olgica Nedić
- Institute for the Application of Nuclear Energy, Department for Metabolism, University of Belgrade, Banatska 31b, 11080 Belgrade, Serbia
- Correspondence:
| | - Ana Penezić
- Institute for the Application of Nuclear Energy, Department for Metabolism, University of Belgrade, Banatska 31b, 11080 Belgrade, Serbia
| | - Simeon Minić
- Center of Excellence for Molecular Food Sciences, Department of Biochemistry, Faculty of Chemistry, University of Belgrade, 11000 Belgrade, Serbia
| | - Mirjana Radomirović
- Center of Excellence for Molecular Food Sciences, Department of Biochemistry, Faculty of Chemistry, University of Belgrade, 11000 Belgrade, Serbia
| | - Milan Nikolić
- Center of Excellence for Molecular Food Sciences, Department of Biochemistry, Faculty of Chemistry, University of Belgrade, 11000 Belgrade, Serbia
| | - Tanja Ćirković Veličković
- Center of Excellence for Molecular Food Sciences, Department of Biochemistry, Faculty of Chemistry, University of Belgrade, 11000 Belgrade, Serbia
- Serbian Academy of Sciences and Arts, Knez Mihailova 35, 11000 Belgrade, Serbia
| | - Nikola Gligorijević
- Institute for the Application of Nuclear Energy, Department for Metabolism, University of Belgrade, Banatska 31b, 11080 Belgrade, Serbia
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2
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Initiation and modulation of Tau protein phase separation by the drug suramin. Sci Rep 2023; 13:3963. [PMID: 36894559 PMCID: PMC9997437 DOI: 10.1038/s41598-023-29846-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 02/10/2023] [Indexed: 03/11/2023] Open
Abstract
Tau is an intrinsically disordered neuronal protein in the central nervous system. Aggregated Tau is the main component of neurofibrillary tangles observed in Alzheimer's disease. In vitro, Tau aggregation can be triggered by polyanionic co-factors, like RNA or heparin. At different concentration ratios, the same polyanions can induce Tau condensates via liquid-liquid phase separation (LLPS), which over time develop pathological aggregation seeding potential. Data obtained by time resolved Dynamic Light Scattering experiments (trDLS), light and electron microscopy show that intermolecular electrostatic interactions between Tau and the negatively charged drug suramin induce Tau condensation and compete with the interactions driving and stabilizing the formation of Tau:heparin and Tau:RNA coacervates, thus, reducing their potential to induce cellular Tau aggregation. Tau:suramin condensates do not seed Tau aggregation in a HEK cell model for Tau aggregation, even after extended incubation. These observations indicate that electrostatically driven Tau condensation can occur without pathological aggregation when initiated by small anionic molecules. Our results provide a novel avenue for therapeutic intervention of aberrant Tau phase separation, utilizing small anionic compounds.
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3
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Zaki M, Hairat S, Kamaal S, Aljarba NH, AL–Johani NS, Alkahtani S. Synthesis, crystal structure elucidation and DNA/HSA binding profile of Ni(II) complex of Schiff base derived from 3–ethoxy salicylaldehyde and o–phenylenediamine. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Dzydzan O, Brodyak I, Strugała-Danak P, Strach A, Kucharska AZ, Gabrielska J, Sybirna N. Biological Activity of Extracts of Red and Yellow Fruits of Cornus mas L.-An In Vitro Evaluation of Antioxidant Activity, Inhibitory Activity against α-Glucosidase, Acetylcholinesterase, and Binding Capacity to Human Serum Albumin. Molecules 2022; 27:molecules27072244. [PMID: 35408646 PMCID: PMC9000679 DOI: 10.3390/molecules27072244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/26/2022] [Accepted: 03/27/2022] [Indexed: 12/24/2022] Open
Abstract
Although extracts are broadly used in order to support the treatment of numerous diseases, only in a limited number of cases is the process of applying and establishing their mechanisms of action scientifically analyzed. Fruits of Cornelian cherry are an abundant source of iridoids, anthocyanins, flavonols and phenolic acids. The aim of the present study was to evaluate the in vitro bioactivity of red and yellow Cornelian cherry fruits’ extracts. The biological potential of extracts, in a broad sense, involved antioxidant activity in relation to phosphatidylcholine liposomes, inhibitory ability against α-glucosidase and acetylcholinesterase enzymes, as well as interactions with human serum albumin. Studies showed that both extracts were more effective in protecting liposome membranes against free radicals produced by AAPH in an aqueous environment due to the fact that they can be better eliminated by the hydrophilic components of the extracts than those produced by UVB radiation. Extracts exhibited inhibitory activity against acetylcholinesterase and α-glucosidase, wherein loganic acid extract showed noncompetitive inhibition of the enzyme. Moreover, extracts binded to albumin mainly through hydrogen bonds and van der Waals forces. Taken together, red and yellow cherry fruits’ extracts exhibit diverse biological properties and can be exploited as a source of natural therapeutic agents.
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Affiliation(s)
- Olha Dzydzan
- Department of Biochemistry, Ivan Franko National University of Lviv, 4 Hrushevskyi St., 79005 Lviv, Ukraine; (O.D.); (I.B.); (N.S.)
| | - Iryna Brodyak
- Department of Biochemistry, Ivan Franko National University of Lviv, 4 Hrushevskyi St., 79005 Lviv, Ukraine; (O.D.); (I.B.); (N.S.)
| | - Paulina Strugała-Danak
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375 Wrocław, Poland; (A.S.); (J.G.)
- Correspondence: ; Tel.: +48-71-320-5461
| | - Angelika Strach
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375 Wrocław, Poland; (A.S.); (J.G.)
| | - Alicja Z. Kucharska
- Department of Fruit, Vegetable and Plant Nutraceutical Technology, Wrocław University of Environmental and Life Sciences, J. Chełmońskiego 37/41, 51-630 Wrocław, Poland;
| | - Janina Gabrielska
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375 Wrocław, Poland; (A.S.); (J.G.)
| | - Natalia Sybirna
- Department of Biochemistry, Ivan Franko National University of Lviv, 4 Hrushevskyi St., 79005 Lviv, Ukraine; (O.D.); (I.B.); (N.S.)
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5
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Włoch A, Strugała-Danak P, Pruchnik H, Krawczyk-Łebek A, Szczecka K, Janeczko T, Kostrzewa-Susłow E. Interaction of 4'-methylflavonoids with biological membranes, liposomes, and human albumin. Sci Rep 2021; 11:16003. [PMID: 34362978 PMCID: PMC8346624 DOI: 10.1038/s41598-021-95430-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 07/26/2021] [Indexed: 02/07/2023] Open
Abstract
The aim of the study was to compare the impact of three synthesized chemical compounds from a group of methylated flavonoids, i.e. 2'-hydroxy-4-methylchalcone (3), 4'-methylflavanone (4), and 4'-methylflavone (5), on a red blood cell membranes (RBCMs), phosphatidylcholine model membranes (PC), and human serum albumin (HSA) in order to investigate their structure-activity relationships. In the first stage of the study, it was proved that all of the compounds tested do not cause hemolysis of red blood cells and, therefore, do not have a toxic effect. In biophysical studies, it was shown that flavonoids have an impact on the hydrophilic and hydrophobic regions of membranes (both RBCMs and PC) causing an increase in packing order of lipid heads and a decrease in fluidity, respectively. Whereas, on the one hand, the magnitude of these changes depends on the type of the compound tested, on the other hand, it also depends on the type of membrane. 4'-Methylflavanone and 4'-methylflavone are located mainly in the hydrophilic part of lipid membranes, while 2'-hydroxy-4-methylchalcone has a greater impact on the hydrophobic area. A fluorescence quenching study proved that compounds (3), (4) and (5) bind with HSA in a process of static quenching. The binding process is spontaneous whereas hydrogen bonding interactions and van der Waals forces play a major role in the interaction between the compounds and HSA.
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Affiliation(s)
- Aleksandra Włoch
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375, Wrocław, Poland
| | - Paulina Strugała-Danak
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375, Wrocław, Poland.
| | - Hanna Pruchnik
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375, Wrocław, Poland
| | - Agnieszka Krawczyk-Łebek
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375, Wrocław, Poland
| | - Karolina Szczecka
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375, Wrocław, Poland
| | - Tomasz Janeczko
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375, Wrocław, Poland
| | - Edyta Kostrzewa-Susłow
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, C. K. Norwida 25, 50-375, Wrocław, Poland
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Kim YM, Abas F, Park YS, Park YK, Ham KS, Kang SG, Lubinska-Szczygeł M, Ezra A, Gorinstein S. Bioactivities of Phenolic Compounds from Kiwifruit and Persimmon. Molecules 2021; 26:molecules26154405. [PMID: 34361562 PMCID: PMC8347458 DOI: 10.3390/molecules26154405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 01/04/2023] Open
Abstract
Fruit used in the common human diet in general, and kiwifruit and persimmon particularly, displays health properties in the prevention of heart disease. This study describes a combination of bioactivity, multivariate data analyses and fluorescence measurements for the differentiating of kiwifruit and persimmon, their quenching and antioxidant properties. The metabolic differences are shown, as well in the results of bioactivities and antioxidant capacities determined by ABTS, FRAP, CUPRAC and DPPH assays. To complement the bioactivity of these fruits, the quenching properties between extracted polyphenols and human serum proteins were determined by 3D-fluorescence spectroscopy studies. These properties of the extracted polyphenols in interaction with the main serum proteins in the human metabolism (human serum albumin (HSA), α-β-globulin (α-β G) and fibrinogen (Fgn)), showed that kiwifruit was more reactive than persimmon. There was a direct correlation between the quenching properties of the polyphenols of the investigated fruits with serum human proteins, their relative quantification and bioactivity. The results of metabolites and fluorescence quenching show that these fruits possess multiple properties that have a great potential to be used in industry with emphasis on the formulation of functional foods and in the pharmaceutical industry. Based on the quenching properties of human serum proteins with polyphenols and recent reports in vivo on human studies, we hypothesize that HSA, α-β G and Fgn will be predictors of coronary artery disease (CAD).
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Affiliation(s)
- Young-Mo Kim
- Industry Academic Collaboration Foundation, Kwangju Women’s University, Gwangsan-gu, Gwangju 62396, Korea;
| | - Faridah Abas
- Department of Food Science, Faculty of Food Science and Technology, University Putra Malaysia, Serdang 43400, Selangor, Malaysia;
- Laboratory of Natural Products, Institute of Bioscience, University Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Yong-Seo Park
- Department of Horticultural Science, Mokpo National University, Muan 534-729, Jeonnam, Korea;
| | - Yang-Kyun Park
- Department of Food Engineering, Mokpo National University, Muan 534-729, Jeonnam, Korea; (Y.-K.P.); (K.-S.H.); (S.-G.K.)
| | - Kyung-Sik Ham
- Department of Food Engineering, Mokpo National University, Muan 534-729, Jeonnam, Korea; (Y.-K.P.); (K.-S.H.); (S.-G.K.)
| | - Seong-Gook Kang
- Department of Food Engineering, Mokpo National University, Muan 534-729, Jeonnam, Korea; (Y.-K.P.); (K.-S.H.); (S.-G.K.)
| | - Martyna Lubinska-Szczygeł
- Department of Analytical Chemistry, Faculty of Chemistry, Gdansk University of Technology, 80-233 Gdansk, Poland;
| | - Aviva Ezra
- Faculty of Medicine, Institute for Drug Research, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel;
| | - Shela Gorinstein
- Faculty of Medicine, Institute for Drug Research, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel;
- Correspondence:
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7
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López-Yerena A, Perez M, Vallverdú-Queralt A, Escribano-Ferrer E. Insights into the Binding of Dietary Phenolic Compounds to Human Serum Albumin and Food-Drug Interactions. Pharmaceutics 2020; 12:E1123. [PMID: 33233356 PMCID: PMC7700232 DOI: 10.3390/pharmaceutics12111123] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 02/06/2023] Open
Abstract
The distribution of drugs and dietary phenolic compounds in the systemic circulation de-pends on, among other factors, unspecific/specific reversible binding to plasma proteins such as human serum albumin (HSA). Phenolic substances, present in plant-derived feeds, foods, beverages, herbal medicines, and dietary supplements, are of great interest due to their biological activity. Recently, considerable research has been directed at the formation of phenol-HSA complexes, focusing above all on structure-affinity relationships. The nucleophilicity and planarity of molecules can be altered by the number and position of hydroxyl groups on the aromatic ring and by hydrogenation. Binding affinities towards HSA may also differ between phenolic compounds in their native form and conjugates derived from phase II reactions. On the other hand, food-drug interactions may increase the concentration of free drugs in the blood, affecting their transport and/or disposition and in some cases provoking adverse or toxic effects. This is caused mainly by a decrease in drug binding affinities for HSA in the presence of flavonoids. Accordingly, to avoid the side effects arising from changes in plasma protein binding, the intake of flavonoid-rich food and beverages should be taken into consideration when treating certain pathologies.
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Affiliation(s)
- Anallely López-Yerena
- Department of Nutrition, Food Science and Gastronomy XaRTA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; (A.L.-Y.); (M.P.); (A.V.-Q.)
| | - Maria Perez
- Department of Nutrition, Food Science and Gastronomy XaRTA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; (A.L.-Y.); (M.P.); (A.V.-Q.)
- Laboratory of Organic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain
| | - Anna Vallverdú-Queralt
- Department of Nutrition, Food Science and Gastronomy XaRTA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; (A.L.-Y.); (M.P.); (A.V.-Q.)
- CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III, 28029 Madrid, Spain
| | - Elvira Escribano-Ferrer
- CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III, 28029 Madrid, Spain
- Pharmaceutical Nanotechnology Group I+D+I Associated Unit to CSIC, Biopharmaceutics and Pharmacokinetics Unit, Department of Pharmacy and Pharmaceutical Technology and Physical Chemistry, Institute of Nanoscience and Nanotechnology (IN2UB), Pharmacy and Food Sciences School, University of Barcelona, 08028 Barcelona, Spain
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8
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Rimac H, Tandarić T, Vianello R, Bojić M. Indomethacin Increases Quercetin Affinity for Human Serum Albumin: A Combined Experimental and Computational Study and Its Broader Implications. Int J Mol Sci 2020; 21:ijms21165740. [PMID: 32785199 PMCID: PMC7460863 DOI: 10.3390/ijms21165740] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/06/2020] [Accepted: 08/08/2020] [Indexed: 12/17/2022] Open
Abstract
Human serum albumin (HSA) is the most abundant carrier protein in the human body. Competition for the same binding site between different ligands can lead to an increased active concentration or a faster elimination of one or both ligands. Indomethacin and quercetin both bind to the binding site located in the IIA subdomain. To determine the nature of the HSA-indomethacin-quercetin interactions, spectrofluorometric, docking, molecular dynamics studies, and quantum chemical calculations were performed. The results show that the indomethacin and quercetin binding sites do not overlap. Moreover, the presence of quercetin does not influence the binding constant and position of indomethacin in the pocket. However, binding of quercetin is much more favorable in the presence of indomethacin, with its position and interactions with HSA significantly changed. These results provide a new insight into drug-drug interactions, which can be important in situations when displacement from HSA or other proteins is undesirable or even desirable. This principle could also be used to deliberately prolong or shorten the xenobiotics' half-life in the body, depending on the desired outcomes.
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Affiliation(s)
- Hrvoje Rimac
- Department of Medicinal Chemistry, University of Zagreb Faculty of Pharmacy and Biochemistry, 10000 Zagreb, Croatia;
- Laboratory of Computational Modelling of Drugs, South Ural State University, 454008 Chelyabinsk, Russia
- Correspondence:
| | - Tana Tandarić
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (T.T.); (R.V.)
| | - Robert Vianello
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (T.T.); (R.V.)
| | - Mirza Bojić
- Department of Medicinal Chemistry, University of Zagreb Faculty of Pharmacy and Biochemistry, 10000 Zagreb, Croatia;
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9
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Crystal structure, Hirshfeld analysis and HSA interaction studies of N'-[(E)-(5-bromothiophen-2-yl)methylidene]-3-hydroxynaphthalene-2-carbohydrazide. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.070] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Binding assessment of methylene blue to human serum albumin and poly(acrylic acid): Experimental and computer-aided modeling studies. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.144] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Yuan M, Liu Y, Xiao A, Leng J, Liao L, Ma L, Liu L. The interaction of dietary flavonoids with xanthine oxidase in vitro: molecular property-binding affinity relationship aspects. RSC Adv 2019; 9:10781-10788. [PMID: 35515322 PMCID: PMC9062502 DOI: 10.1039/c8ra09926j] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/25/2019] [Indexed: 11/21/2022] Open
Abstract
The molecular property-affinity relationships of dietary flavonoids binding to xanthine oxidase were investigated in vitro by comparing the binding constants obtained from a fluorescence-quenching method. The inhibitions of dietary flavonoids on xanthine oxidase were also investigated and analyzed, revealing that the binding process was influenced by the structural differences of the flavonoids under investigation. For example, methylation and hydroxylation at the 7- and 5-positions weakened the binding affinities, while hydroxylation at the 3- and 3'-positions mostly improved binding affinities. Glycosylation and hydrogenation of the C2[double bond, length as m-dash]C3 double bond also increased affinities for xanthine oxidase. In addition, galloylated catechins showed higher binding affinities than non-galloylated catechins. Trends in the binding affinities and inhibition of flavonoids during structure modifications were summarized. Affinities for xanthine oxidase and inhibition on xanthine oxidase changed in the opposite direction during the methylation and hydroxylation of flavonoids in the A ring, and the glycosylation and hydrogenation of C2[double bond, length as m-dash]C3. However, affinities and inhibition for xanthine oxidase changed in the same direction during the methylation and hydroxylation of flavonoids in the B ring.
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Affiliation(s)
- Mengmeng Yuan
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences Changsha 410205 China
- College of Chemistry and Chemical Engineering, Central South University Changsha 410083 China
| | - Yi Liu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences Changsha 410205 China
| | - Aiping Xiao
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences Changsha 410205 China
| | - Juan Leng
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences Changsha 410205 China
| | - Liping Liao
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences Changsha 410205 China
| | - Lei Ma
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University China
| | - Liangliang Liu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences Changsha 410205 China
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12
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Rimac H, Dufour C, Debeljak Ž, Zorc B, Bojić M. Warfarin and Flavonoids Do Not Share the Same Binding Region in Binding to the IIA Subdomain of Human Serum Albumin. Molecules 2017; 22:molecules22071153. [PMID: 28696372 PMCID: PMC6152318 DOI: 10.3390/molecules22071153] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Accepted: 07/07/2017] [Indexed: 01/16/2023] Open
Abstract
Human serum albumin (HSA) binds a variety of xenobiotics, including flavonoids and warfarin. The binding of another ligand to the IIA binding site on HSA can cause warfarin displacement and potentially the elevation of its free concentration in blood. Studies dealing with flavonoid-induced warfarin displacement from HSA provided controversial results: estimated risk of displacement ranged from none to serious. To resolve these controversies, in vitro study of simultaneous binding of warfarin and eight different flavonoid aglycons and glycosides to HSA was carried out by fluorescence spectroscopy as well as molecular docking. Results show that warfarin and flavonoids do not share the same binding region in binding to HSA. Interactions were only observed at high warfarin concentrations not attainable under recommended dosing regimes. Docking experiments show that flavonoid aglycons and glycosides do not bind at warfarin high affinity sites, but rather to different regions within the IIA HSA subdomain. Thus, the risk of clinically significant warfarin-flavonoid interaction in binding to HSA should be regarded as negligible.
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Affiliation(s)
- Hrvoje Rimac
- Department of Medicinal Chemistry, University of Zagreb, Faculty of Pharmacy and Biochemistry, Ante Kovačića 1, 10000 Zagreb, Croatia.
| | - Claire Dufour
- UMR408 SQPOV, Safety and Quality of Plant Products, INRA, Avignon University, 228 Route de l'Aérodrome, 84000 Avignon, France.
| | - Željko Debeljak
- Institute of Clinical Laboratory Diagnostics, Osijek University Hospital Center, Josipa Huttlera 4, 31000 Osijek, Croatia.
- Department of Pharmacology, School of Medicine, University of Osijek, Cara Hadrijana 10/E, 31000 Osijek, Croatia.
| | - Branka Zorc
- Department of Medicinal Chemistry, University of Zagreb, Faculty of Pharmacy and Biochemistry, Ante Kovačića 1, 10000 Zagreb, Croatia.
| | - Mirza Bojić
- Department of Medicinal Chemistry, University of Zagreb, Faculty of Pharmacy and Biochemistry, Ante Kovačića 1, 10000 Zagreb, Croatia.
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13
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Tang X, Tang P, Liu L. Molecular Structure-Affinity Relationship of Flavonoids in Lotus Leaf (Nelumbo nucifera Gaertn.) on Binding to Human Serum Albumin and Bovine Serum Albumin by Spectroscopic Method. Molecules 2017. [PMID: 28644391 PMCID: PMC6152052 DOI: 10.3390/molecules22071036] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Lotus leaf has gained growing popularity as an ingredient in herbal formulations due to its various activities. As main functional components of lotus leaf, the difference in structure of flavonoids affected their binding properties and activities. In this paper, the existence of 11 flavonoids in lotus leaf extract was confirmed by High Performance Liquid Chromatography (HPLC) analysis and 11 flavonoids showed various contents in lotus leaf. The interactions between lotus leaf extract and two kinds of serum albumins (human serum albumin (HSA) and bovine serum albumin (BSA)) were investigated by spectroscopic methods. Based on the fluorescence quenching, the interactions between these flavonoids and serum albumins were further checked in detail. The relationship between the molecular properties of flavonoids and their affinities for serum albumins were analyzed and compared. The hydroxylation on 3 and 3’ position increased the affinities for serum albumins. Moreover, both of the methylation on 3’ position of quercetin and the C2=C3 double bond of apigenin and quercetin decreased the affinities for HSA and BSA. The glycosylation lowered the affinities for HSA and BSA depending on the type of sugar moiety. It revealed that the hydrogen bond force played an important role in binding flavonoids to HSA and BSA.
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Affiliation(s)
- Xiaosheng Tang
- Hubei Key Laboratory of Edible Wild Plants Conservation and Utilization & National Demonstration Center for Experimental Biology Education & College of Life Sciences, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi 435002, China.
| | - Ping Tang
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China.
- School of Environmental Science and Engineering, Hubei Polytechnic University, Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation, Huangshi 435003, China.
| | - Liangliang Liu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China.
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Bartella L, Furia E, Di Donna L. Mass spectrometry and potentiometry studies of Al(iii)–naringin complexes. RSC Adv 2017. [DOI: 10.1039/c7ra12281k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Here we have studied the complexation of naringin with Al(iii) under physiological conditions (i.e., at 37 °C and in 0.16 mol L−1NaCl).
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Affiliation(s)
- L. Bartella
- Department of Chemistry and Chemical Technologies
- University of Calabria
- Arcavacata di Rende
- Italy
| | - E. Furia
- Department of Chemistry and Chemical Technologies
- University of Calabria
- Arcavacata di Rende
- Italy
| | - L. Di Donna
- Department of Chemistry and Chemical Technologies
- University of Calabria
- Arcavacata di Rende
- Italy
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