1
|
Minic S, Velickovic L, Annighöfer B, Thureau A, Gligorijevic N, Jovanovic Z, Brûlet A, Combet S. Probing the structural stability of R-phycocyanin under pressure. Protein Sci 2024; 33:e5145. [PMID: 39150070 PMCID: PMC11328111 DOI: 10.1002/pro.5145] [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: 06/16/2024] [Revised: 07/26/2024] [Accepted: 07/30/2024] [Indexed: 08/17/2024]
Abstract
The red macroalgae Porphyra, commonly known as Nori, is widely used as food around the world due to its high nutrient content, including the significant abundance of colored phycobiliproteins (PBPs). Among these, R-phycocyanin (R-PC) stands out for its vibrant purple color and numerous bioactive properties, making it a valuable protein for the food industry. However, R-PC's limited thermal stability necessitates alternative processing methods to preserve its color and bioactive properties. Our study aimed to investigate the in-situ stability of oligomeric R-PC under high pressure (HP) conditions (up to 4000 bar) using a combination of absorption, fluorescence, and small-angle X-ray scattering (SAXS) techniques. The unfolding of R-PC is a multiphase process. Initially, low pressure induces conformational changes in the R-PC oligomeric form (trimers). As pressure increases above 1600 bar, these trimers dissociate into monomers, and at pressures above 3000 bar, the subunits begin to unfold. When returned to atmospheric pressure, R-PC partially refolds, retaining 50% of its original color absorbance. In contrast, heat treatment causes irreversible and detrimental effects on R-PC color, highlighting the advantages of HP treatment in preserving both the color and bioactive properties of R-PC compared to heat treatment.
Collapse
Affiliation(s)
- Simeon Minic
- Faculty of Chemistry, Center of Excellence for Molecular Food Sciences & Department of Biochemistry, University of Belgrade, Belgrade, Serbia
| | - Luka Velickovic
- Faculty of Chemistry, Center of Excellence for Molecular Food Sciences & Department of Biochemistry, University of Belgrade, Belgrade, Serbia
| | - Burkhard Annighöfer
- Laboratoire Léon-Brillouin (LLB), UMR12 CEA, CNRS, Université Paris-Saclay, CEA-Saclay, F-91191 Gif-sur-Yvette CEDEX, Gif-sur-Yvette, France
| | | | - Nikola Gligorijevic
- Department of Chemistry, University of Belgrade-Institute of Chemistry, Technology, and Metallurgy, National Institute of the Republic of Serbia, Belgrade, Serbia
| | - Zorana Jovanovic
- Faculty of Chemistry, Center of Excellence for Molecular Food Sciences & Department of Biochemistry, University of Belgrade, Belgrade, Serbia
- Laboratoire Léon-Brillouin (LLB), UMR12 CEA, CNRS, Université Paris-Saclay, CEA-Saclay, F-91191 Gif-sur-Yvette CEDEX, Gif-sur-Yvette, France
| | - Annie Brûlet
- Laboratoire Léon-Brillouin (LLB), UMR12 CEA, CNRS, Université Paris-Saclay, CEA-Saclay, F-91191 Gif-sur-Yvette CEDEX, Gif-sur-Yvette, France
| | - Sophie Combet
- Laboratoire Léon-Brillouin (LLB), UMR12 CEA, CNRS, Université Paris-Saclay, CEA-Saclay, F-91191 Gif-sur-Yvette CEDEX, Gif-sur-Yvette, France
| |
Collapse
|
2
|
Zeng Z, Guan X, Qin X, Chen Z, Liu X. Effects of konjac glucomannan with different degrees of deacetylation on the properties and structure of wheat gluten protein. Int J Biol Macromol 2024; 276:133780. [PMID: 38992525 DOI: 10.1016/j.ijbiomac.2024.133780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 06/20/2024] [Accepted: 07/08/2024] [Indexed: 07/13/2024]
Abstract
The properties and structure of gluten protein with different deacetylation degrees of konjac glucomannan (KGM) were investigated, in an attempt to improve the quality of gluten protein in flour products. Results showed that deacetylated KGM (DKGM) could improve the textural properties and enhance the thermal stability of gluten protein. DKGM increased the water holding capacity and shortened the T2 relaxation time of gluten after removing some acetyl groups. As the deacetylation degree increased, the hardness and adhesiveness of gluten gels gradually increased, while the springiness decreased. In addition, the presence of DKGM promoted the conversion from free sulfhydryl to disulfide bonds and increased the β-sheet content in gluten protein. The low-deacetylation KGM decreased the surface hydrophobicity and fluorescence intensity of gluten protein, and the microstructures of gluten gels became more compact. Compared with gluten protein-KGM complex gel, the degradation temperature of gluten protein-DKGM complex gels was observed to increase by >3 °C. Overall, the low-deacetylation KGM was beneficial for improving the physicochemical properties and maintaining the network structure of gluten protein. This study provides valuable references and practical insights to improve gluten quality in the flour industry.
Collapse
Affiliation(s)
- Zhilong Zeng
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Xiaoyao Guan
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Xiaoli Qin
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Zhaojun Chen
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Xiong Liu
- College of Food Science, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China.
| |
Collapse
|
3
|
Kalaycıoğlu Z. The affinity of histamine to serum albumin: Capillary electrophoresis-frontal analysis and in-silico molecular docking approaches. J Sep Sci 2023; 46:e2300391. [PMID: 37688351 DOI: 10.1002/jssc.202300391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/27/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023]
Abstract
Histamine is a biogenic amine found in various body tissues and responsible for many critical vital activities. It is also responsible for allergic reactions in the body. Ingestion of foods containing high amounts of histamine can cause fatal allergic reactions. Albumin in plasma controls drugs and free concentrations of bioactive constituents taken to the body with food. Hence, this study aimed to characterise the interactions of histamine with bovine serum albumin. Capillary electrophoresis in the frontal analysis mode was employed in this study as a practical approach for assessing histamine-bovine serum albumin affinity. The plateau-shaped free histamine peak was well separated from the bovine serum albumin (BSA)-histamine complex peak. The free histamine concentration was obtained by following the height of the free histamine peak. Whereas the bound histamine concentrations were obtained by calculating the difference between the height of total and free histamine peaks. Histamine bound to BSA at one independent site with a Kb value of 2.50 × 103 L/mol. Moreover, an in-silico molecular docking method was performed, and it was revealed that the binding site of histamine was located closer to Lysine-131 in subdomain IIA of bovine serum albumin.
Collapse
|
4
|
Veličković L, Simović A, Gligorijević N, Thureau A, Obradović M, Vasović T, Sotiroudis G, Zoumpanioti M, Brûlet A, Ćirković Veličković T, Combet S, Nikolić M, Minić S. Exploring and strengthening the potential of R-phycocyanin from Nori flakes as a food colourant. Food Chem 2023; 426:136669. [PMID: 37352716 DOI: 10.1016/j.foodchem.2023.136669] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/07/2023] [Accepted: 06/17/2023] [Indexed: 06/25/2023]
Abstract
This study aimed to purify, characterise and stabilise the natural food colourant, R-phycocyanin (R-PC), from the red algae Porphyra spp. (Nori). We purified R-PC from dried Nori flakes with a high purity ratio (A618/A280 ≥ 3.4) in native form (α-helix content 53%). SAXS measurements revealed that R-PC is trimeric ((αβ)3) in solution. The thermal denaturation of α-helix revealed one transition (Tm at 52 °C), while the pH stability study showed R-PC is stable in the pH range 4-8. The thermal treatment of R-PC at 60 °C has detrimental and irreversible effects on R-PC colour and antioxidant capacity (22 % of residual capacity). However, immobilisation of R-PC within calcium alginate beads completely preserves R-PC colour and mainly retains its antioxidant ability (78 % of residual capacity). Results give new insights into the stability of R-PC and preservation of its purple colour and bioactivity by encapsulation in calcium alginate beads.
Collapse
Affiliation(s)
- Luka Veličković
- University of Belgrade - Faculty of Chemistry, Center of Excellence for Molecular Food Sciences & Department of Biochemistry, Studentski trg 12-16, 11000 Belgrade, Serbia.
| | - Ana Simović
- University of Belgrade - Faculty of Chemistry, Center of Excellence for Molecular Food Sciences & Department of Biochemistry, Studentski trg 12-16, 11000 Belgrade, Serbia.
| | - Nikola Gligorijević
- University of Belgrade - Institute of Chemistry, Technology, and Metallurgy, National Institute of the Republic of Serbia, Department of Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia.
| | - Aurélien Thureau
- SWING Beamline, Synchrotron SOLEIL, Saint-Aubin BP 48, 91192 Gif-sur-Yvette, France.
| | - Milica Obradović
- University of Belgrade - Faculty of Chemistry, Center of Excellence for Molecular Food Sciences & Department of Biochemistry, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Tamara Vasović
- University of Belgrade - Faculty of Chemistry, Center of Excellence for Molecular Food Sciences & Department of Biochemistry, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Georgios Sotiroudis
- National Hellenic Research Foundation (NHRF), Institute of Chemical Biology, 48 Vassileos Constantinou Ave., Athens 11635, Greece.
| | - Maria Zoumpanioti
- National Hellenic Research Foundation (NHRF), Institute of Chemical Biology, 48 Vassileos Constantinou Ave., Athens 11635, Greece.
| | - Annie Brûlet
- Université Paris-Saclay, Laboratoire Léon-Brillouin, UMR12 CEA-CNRS, CEA-Saclay, Gif-sur-Yvette CEDEX, France.
| | - Tanja Ćirković Veličković
- University of Belgrade - Faculty of Chemistry, Center of Excellence for Molecular Food Sciences & Department of Biochemistry, Studentski trg 12-16, 11000 Belgrade, Serbia; Centre for Food Chemistry and Technology, Ghent University Global Campus, Incheon, South Korea; Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, geb. A, B-9000 Ghent, Belgium; Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia.
| | - Sophie Combet
- Université Paris-Saclay, Laboratoire Léon-Brillouin, UMR12 CEA-CNRS, CEA-Saclay, Gif-sur-Yvette CEDEX, France.
| | - Milan Nikolić
- University of Belgrade - Faculty of Chemistry, Center of Excellence for Molecular Food Sciences & Department of Biochemistry, Studentski trg 12-16, 11000 Belgrade, Serbia.
| | - Simeon Minić
- University of Belgrade - Faculty of Chemistry, Center of Excellence for Molecular Food Sciences & Department of Biochemistry, Studentski trg 12-16, 11000 Belgrade, Serbia.
| |
Collapse
|
5
|
Platanić Arizanović L, Gligorijević N, Cvijetić I, Mijatović A, Ristivojević MK, Minić S, Kokić AN, Miljević Č, Nikolić M. Human Hemoglobin and Antipsychotics Clozapine, Ziprasidone and Sertindole: Friends or Foes? Int J Mol Sci 2023; 24:ijms24108921. [PMID: 37240267 DOI: 10.3390/ijms24108921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Packed with hemoglobin, an essential protein for oxygen transport, human erythrocytes are a suitable model system for testing the pleiotropic effects of lipophilic drugs. Our study investigated the interaction between antipsychotic drugs clozapine, ziprasidone, sertindole, and human hemoglobin under simulated physiological conditions. Analysis of protein fluorescence quenching at different temperatures and data obtained from the van't Hoff diagram and molecular docking indicate that the interactions are static and that the tetrameric human hemoglobin has one binding site for all drugs in the central cavity near αβ interfaces and is dominantly mediated through hydrophobic forces. The association constants were lower-moderate strength (~104 M-1), the highest observed for clozapine (2.2 × 104 M-1 at 25 °C). The clozapine binding showed "friendly" effects: increased α-helical content, a higher melting point, and protein protection from free radical-mediated oxidation. On the other hand, bound ziprasidone and sertindole had a slightly pro-oxidative effect, increasing ferrihemoglobin content, a possible "foe". Since the interaction of proteins with drugs plays a vital role in their pharmacokinetic and pharmacodynamic properties, the physiological significance of the obtained findings is briefly discussed.
Collapse
Affiliation(s)
| | - Nikola Gligorijević
- Institute of Chemistry, Technology, and Metallurgy, National Institute of the Republic of Serbia, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
| | - Ilija Cvijetić
- University of Belgrade-Faculty of Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Aleksandar Mijatović
- Faculty of Mining and Geology, University of Belgrade, Đušina 7, 11000 Belgrade, Serbia
| | | | - Simeon Minić
- University of Belgrade-Faculty of Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Aleksandra Nikolić Kokić
- Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia
| | - Čedo Miljević
- Institute of Mental Health, Palmotićeva 37, 11000 Belgrade, Serbia
| | - Milan Nikolić
- University of Belgrade-Faculty of Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia
| |
Collapse
|
6
|
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.
Collapse
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
| |
Collapse
|
7
|
Wilkinson IVL, Castro-Falcón G, Roda-Serrat MC, Purdy TN, Straetener J, Brauny MM, Maier L, Brötz-Oesterhelt H, Christensen LP, Sieber SA, Hughes CC. The Cyanobacterial "Nutraceutical" Phycocyanobilin Inhibits Cysteine Protease Legumain. Chembiochem 2023; 24:e202200455. [PMID: 36538283 DOI: 10.1002/cbic.202200455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 12/19/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
The blue biliprotein phycocyanin, produced by photo-autotrophic cyanobacteria including spirulina (Arthrospira) and marketed as a natural food supplement or "nutraceutical," is reported to have anti-inflammatory, antioxidant, immunomodulatory, and anticancer activity. These diverse biological activities have been specifically attributed to the phycocyanin chromophore, phycocyanobilin (PCB). However, the mechanism of action of PCB and the molecular targets responsible for the beneficial properties of PCB are not well understood. We have developed a procedure to rapidly cleave the PCB pigment from phycocyanin by ethanolysis and then characterized it as an electrophilic natural product that interacts covalently with thiol nucleophiles but lacks any appreciable cytotoxicity or antibacterial activity against common pathogens and gut microbes. We then designed alkyne-bearing PCB probes for use in chemical proteomics target deconvolution studies. Target identification and validation revealed the cysteine protease legumain (also known as asparaginyl endopeptidase, AEP) to be a target of PCB. Inhibition of this target may account for PCB's diverse reported biological activities.
Collapse
Affiliation(s)
- Isabel V L Wilkinson
- Center for Protein Assemblies (CPA), Department of Chemistry, Technical University of Munich, Ernst-Otto-Fischer-Str. 8, 85748, Garching, Germany
| | - Gabriel Castro-Falcón
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, CA 92093, USA
| | - Maria C Roda-Serrat
- Department of Green Technology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Trevor N Purdy
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, CA 92093, USA
| | - Jan Straetener
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, 72076, Tübingen, Germany
| | - Melanie M Brauny
- Cluster of Excellence EXC 2124, Controlling Microbes to Fight Infection, University of Tübingen, 72076, Tübingen, Germany
- Microbiome-Host-Interaction Lab, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, 72076, Tübingen, Germany
| | - Lisa Maier
- Cluster of Excellence EXC 2124, Controlling Microbes to Fight Infection, University of Tübingen, 72076, Tübingen, Germany
- Microbiome-Host-Interaction Lab, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, 72076, Tübingen, Germany
| | - Heike Brötz-Oesterhelt
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, 72076, Tübingen, Germany
- Cluster of Excellence EXC 2124, Controlling Microbes to Fight Infection, University of Tübingen, 72076, Tübingen, Germany
- German Center for Infection Research, Partner Site Tübingen, 72076, Tübingen, Germany
| | - Lars P Christensen
- Department of Green Technology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Stephan A Sieber
- Center for Protein Assemblies (CPA), Department of Chemistry, Technical University of Munich, Ernst-Otto-Fischer-Str. 8, 85748, Garching, Germany
| | - Chambers C Hughes
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, CA 92093, USA
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, 72076, Tübingen, Germany
- Cluster of Excellence EXC 2124, Controlling Microbes to Fight Infection, University of Tübingen, 72076, Tübingen, Germany
- German Center for Infection Research, Partner Site Tübingen, 72076, Tübingen, Germany
| |
Collapse
|
8
|
Curulli A. Recent Advances in Electrochemical Sensing Strategies for Food Allergen Detection. BIOSENSORS 2022; 12:bios12070503. [PMID: 35884306 PMCID: PMC9313194 DOI: 10.3390/bios12070503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 02/06/2023]
Abstract
Food allergy has been indicated as the most frequent adverse reaction to food ingredients over the past few years. Since the only way to avoid the occurrence of allergic phenomena is to eliminate allergenic foods, it is essential to have complete and accurate information on the components of foodstuff. In this framework, it is mandatory and crucial to provide fast, cost-effective, affordable, and reliable analysis methods for the screening of specific allergen content in food products. This review reports the research advancements concerning food allergen detection, involving electrochemical biosensors. It focuses on the sensing strategies evidencing different types of recognition elements such as antibodies, nucleic acids, and cells, among others, the nanomaterial role, the several electrochemical techniques involved and last, but not least, the ad hoc electrodic surface modification approaches. Moreover, a selection of the most recent electrochemical sensors for allergen detection are reported and critically analyzed in terms of the sensors’ analytical performances. Finally, advantages, limitations, and potentialities for practical applications of electrochemical biosensors for allergens are discussed.
Collapse
Affiliation(s)
- Antonella Curulli
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), 00161 Rome, Italy
| |
Collapse
|
9
|
Beneficial Effects of Spirulina Consumption on Brain Health. Nutrients 2022; 14:nu14030676. [PMID: 35277035 PMCID: PMC8839264 DOI: 10.3390/nu14030676] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/29/2022] [Accepted: 02/02/2022] [Indexed: 12/10/2022] Open
Abstract
Spirulina is a microscopic, filamentous cyanobacterium that grows in alkaline water bodies. It is extensively utilized as a nutraceutical food supplement all over the world due to its high levels of functional compounds, such as phycocyanins, phenols and polysaccharides, with anti-inflammatory, antioxidant, immunomodulating properties both in vivo and in vitro. Several scientific publications have suggested its positive effects in various pathologies such as cardiovascular diseases, hypercholesterolemia, hyperglycemia, obesity, hypertension, tumors and inflammatory diseases. Lately, different studies have demonstrated the neuroprotective role of Spirulina on the development of the neural system, senility and a number of pathological conditions, including neurological and neurodegenerative diseases. This review focuses on the role of Spirulina in the brain, highlighting how it exerts its beneficial anti-inflammatory and antioxidant effects, acting on glial cell activation, and in the prevention and/or progression of neurodegenerative diseases, in particular Parkinson’s disease, Alzheimer’s disease and Multiple Sclerosis; due to these properties, Spirulina could be considered a potential natural drug.
Collapse
|
10
|
|
11
|
Antipsychotic clozapine binding to alpha-2-macroglobulin protects interacting partners against oxidation and preserves the anti-proteinase activity of the protein. Int J Biol Macromol 2021; 183:502-512. [PMID: 33930446 DOI: 10.1016/j.ijbiomac.2021.04.155] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/23/2021] [Accepted: 04/24/2021] [Indexed: 12/20/2022]
Abstract
In this study, the interaction between clozapine, an atypical antipsychotic drug, and alpha-2-macroglobulin (α2M), a multipurpose anti-proteinase, was investigated under simulated (patho) physiological conditions using multiple spectroscopic techniques and molecular modeling. It was found that α2M binds clozapine with a moderate affinity (the binding constant of 0.9 × 105 M-1 at 37 °C). The preferable binding site for both clozapine's atropisomers was revealed to be a large pocket at the interface of C and D monomer subunits of the protein. Hydrogen bonds and the hydrophobic effect were proposed as dominant forces in complex formation. The binding of clozapine did not induce significant conformational change of the protein, as confirmed by virtually unaltered α2M secondary structure and anti-proteinase activity. However, both clozapine and α2M shielded each other from the deleterious influence of strong oxidants: sodium hypochlorite and 2,2'-azobis-2-methyl-propanimidamide dihydrochloride (AAPH). Moreover, clozapine in a concentration range that is usually targeted in the plasma during patients' treatment effectively protected the anti-proteinase activity of α2M under AAPH-induced free radical overproduction. Our results suggest that the cooperation between α2M and clozapine may be a path by which these two molecules synergistically protect neural tissue against injury caused by disturbed proteostasis or oxidative stress.
Collapse
|
12
|
Gligorijević N, Minić S, Radibratović M, Papadimitriou V, Nedić O, Sotiroudis TG, Nikolić MR. Nutraceutical phycocyanobilin binding to catalase protects the pigment from oxidation without affecting catalytic activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 251:119483. [PMID: 33515920 DOI: 10.1016/j.saa.2021.119483] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/02/2021] [Accepted: 01/09/2021] [Indexed: 06/12/2023]
Abstract
Phycocyanobilin is a dark blue linear tetrapyrrole chromophore covalently attached to protein subunits of phycobiliproteins present in the light-harvesting complexes of the cyanobacteria Arthrospira platensis (Spirulina "superfood"). It shows exceptional health-promoting properties and emerging use in various fields of bioscience and industry. This study aims to examine the mutual impact of phycocyanobilin interactions with catalase, a life-essential antioxidant enzyme. Fluorescence quenching experiments demonstrated moderate binding (Ka of 3.9 × 104 M-1 at 25 °C; n = 0.89) (static type), while van't Hoff plot points to an enthalpically driven ligand binding (ΔG = -28.2 kJ mol-1; ΔH = -41.9 kJ mol-1). No significant changes in protein secondary structures (α-helix content ~22%) and thermal protein stability in terms of enzyme tetramer subunits (Tm ~ 64 °C) were detected upon ligand binding. Alterations in the tertiary catalase structure were found without adverse effects on enzyme activity (~2 × 106 IU/mL). The docking study results indicated that the ligand most likely binds to amino acid residues (Asn141, Arg 362, Tyr369 and Asn384) near the cavity between the enzyme homotetramer subunits not related to the active site. Finally, complex formation protects the pigment from free-radical induced oxidation (bleaching), suggesting possible prolongation of its half-life and bioactivity in vivo if bound to catalase.
Collapse
Affiliation(s)
- Nikola Gligorijević
- INEP Institute for Application of Nuclear Energy, University of Belgrade, Belgrade-Zemun, Serbia
| | - Simeon Minić
- Department of Biochemistry & Center of Excellence for Molecular Food Sciences, University of Belgrade - Faculty of Chemistry, Belgrade, Serbia
| | - Milica Radibratović
- Department of Chemistry, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
| | | | - Olgica Nedić
- INEP Institute for Application of Nuclear Energy, University of Belgrade, Belgrade-Zemun, Serbia
| | - Theodore G Sotiroudis
- National Hellenic Research Foundation, Institute of Chemical Biology, Athens, Greece
| | - Milan R Nikolić
- Department of Biochemistry & Center of Excellence for Molecular Food Sciences, University of Belgrade - Faculty of Chemistry, Belgrade, Serbia.
| |
Collapse
|
13
|
He X, Sui Y, Wang S. Application of a stepwise frontal analysis method in cell membrane chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1161:122436. [PMID: 33246282 DOI: 10.1016/j.jchromb.2020.122436] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 10/29/2020] [Accepted: 11/02/2020] [Indexed: 10/22/2022]
Abstract
Bio-affinity chromatography is used in the study of drug-receptor interactions. A stepwise frontal analysis (SFA) method was developed based on frontal analysis (FA). A high expression alpha 1A adrenergic receptor (α1A AR) cell membrane chromatography (CMC) method was then developed and combined with SFA to investigate the affinity of three model α1A AR-binding drugs towards α1A AR. Equilibrium dissociation constant (Kd) values for drug-receptor interactions were determined by FA and SFA; results showed that these methods were highly consistent. The results demonstrate that the CMC/SFA method is a time-saving and less wasteful method than traditional method for the evaluation of drug-receptor binding characteristics, and could be used to study the interactions between drugs and membrane receptors.
Collapse
Affiliation(s)
- Xiaoshuang He
- Department of Pharmacy, Ruijin Hospital Affiliated to School of Medicine, Shanghai Jiaotong University, Shanghai, 200025, China; School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Yue Sui
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Sicen Wang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China; Shaanxi Engineering Research Center of Cardiovascular DrugsScreening & Analysis, Xi'an, 710061, China.
| |
Collapse
|
14
|
Saikosaponin A-Induced Gut Microbiota Changes Attenuate Severe Acute Pancreatitis through the Activation of Keap1/Nrf2-ARE Antioxidant Signaling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:9217219. [PMID: 33204401 PMCID: PMC7652616 DOI: 10.1155/2020/9217219] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 07/11/2020] [Accepted: 07/21/2020] [Indexed: 12/16/2022]
Abstract
Objective Severe acute pancreatitis (SAP) is a serious and life-threatening disease associated with multiple organ failure and a high mortality rate and is accompanied by distinct oxidative stress and inflammatory responses. Saikosaponin A has strong antioxidant properties and can affect the composition of gut microbiota. We sought to determine the effects of Saikosaponin A interventions on SAP by investigating the changes of gut microbiota and related antioxidant signaling. Methods A SAP model was established in Sprague-Dawley (SD) rats through the injection of sodium taurocholate into the biliopancreatic duct and confirmed by elevated levels of serum lipase and amylase. The model was fed a standard diet either with saline solution or with Saikosaponin A. Fecal microbiota transplantation (FMT) from Saikosaponin A-induced rats into the rat model was performed to test the effects of gut microbiota. The composition of gut microbiota was analyzed by using 16S rRNA gene sequencing. We measured apoptotic status, inflammatory biomarkers, and Keap1-Nrf2-ARE ((Kelch-like ECH-associated protein 1) nuclear factor erythroid 2-related factor 2-antioxidant response element) antioxidant signaling. Results Saikosaponin A intervention attenuated SAP lesions and reduced the levels of serum amylase and lipase, oxidative stress, and inflammatory responses by reducing pathological scores and affecting the serum level of oxidative and inflammatory factors. Meanwhile, the expression of Keap1-Nrf2-ARE was increased. Saikosaponin A intervention improved microbiota composition by increasing the relative abundance of Lactobacillus and Prevotella species. FMT resulted in similar results as those caused by the Saikosaponin A intervention, suggesting Saikosaponin A may exert its function via the improvement of gut microbiota composition. Conclusions Saikosaponin A-induced gut microbiota changes attenuate SAP progression in the rat model and may be a potential natural drug for adjuvant treatment of SAP. Further work is needed to clear up the points.
Collapse
|
15
|
Prado JM, Veggi PC, Náthia-Neves G, Meireles MAA. Extraction Methods for Obtaining Natural Blue Colorants. CURR ANAL CHEM 2020. [DOI: 10.2174/1573411014666181115125740] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Background:
Blue is a color not often present in food. Even so, it is especially attractive
to children. Today, most blue coloring agents used by the food industry are synthetic. With increasing
health issues concern by the scientific community and the general population, there is a trend to look
for natural alternatives to most synthetic products. There only exist few natural blue colorants, which
are presented in a literature survey, along with the methods currently used for their recovery from
natural sources. The best extraction methods and process parameters for the extraction of blue anthocyanins,
iridoids and phycocyanin are discussed.
Methods:
A literature survey was conducted to detect the main sources of blue colorants found in nature.
The focus was on the extraction methods used to recover such molecules, with the objective of
finding efficient and environmentally safe techniques for application at industrial level, and, thus, allowing
the production of natural blue colorants at scale high enough for food industry consumption.
Results:
The main natural blue colorants found in literature are anthocyanins, phycocyanin, and genipin.
While anthocyanins can be recovered from a variety of plants, the source of phycocyanin are
algae, and genipin can be obtained specifically from Gardenia jasminoides Ellis and Genipa americana
L. Several extraction techniques have been applied to recover blue colorants from such sources,
from classical methods using organic solvents, to more sophisticated technologies as ultrasoundassisted
extraction, supercritical fluid extraction, pressurized liquid extraction, high-pressure extraction,
and enzyme-assisted extraction.
Conclusion:
There is great potential for anthocyanins, phycocyanin and genipin use as natural food
additives with health benefits, besides imparting color. However, the technologies for the colorants
recovery and application are not mature enough. Therefore, this area is still developing, and it is necessary
to evaluate the economic feasibility of the proposed extraction processes, along with the safety
and acceptance of colored food using these additives.
Collapse
Affiliation(s)
- Juliana M. Prado
- Engineering, Modeling and Applied Social Sciences Center (CECS), Federal University of ABC (UFABC), Av. dos Estados, 5001, 09210-580, Santo Andre, SP, Brazil
| | - Priscilla C. Veggi
- Federal University of Sao Paulo (UNIFESP), School of Chemical Engineering, 210 Sao Nicolau Street, 09913-030, Diadema, SP, Brazil
| | - Grazielle Náthia-Neves
- LASEFI/DEA/FEA (College of Food Engineering)/ UNICAMP (University of Campinas), Rua Monteiro Lobato, 80; 13083-862, Campinas, SP, Brazil
| | - M. Angela A. Meireles
- LASEFI/DEA/FEA (College of Food Engineering)/ UNICAMP (University of Campinas), Rua Monteiro Lobato, 80; 13083-862, Campinas, SP, Brazil
| |
Collapse
|
16
|
Gligorijević N, Radomirović M, Rajković A, Nedić O, Ćirković Veličković T. Fibrinogen Increases Resveratrol Solubility and Prevents it from Oxidation. Foods 2020; 9:E780. [PMID: 32545422 PMCID: PMC7353596 DOI: 10.3390/foods9060780] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 05/26/2020] [Accepted: 06/04/2020] [Indexed: 12/13/2022] Open
Abstract
The French paradox describes a lower incidence of cardiovascular problems despite a high intake of saturated fats. This phenomenon was associated with higher consumption of red wine, as it was later discovered that the presence of antioxidants, including resveratrol, have beneficial effects. We hypothesized that resveratrol may have a more direct role in protection from harmful oxidation, presumably through binding to important proteins of the blood coagulation process. Spectrofluorimetry demonstrated that resveratrol is capable of binding to fibrinogen, the main protein in the coagulation process, which is also important as a food additive. Various spectroscopic methods determined that binding does not cause fibrinogen unfolding or destabilization since protein melting temperature remains unchanged. A mutually protective effect against the free radical-induced oxidation of polyphenol and fibrinogen was found. The presence of fibrinogen caused only a negligible masking effect of the antioxidative abilities of resveratrol, measured by a reduction of hexacyanoferrate (III), while greatly increasing its solubility in an aqueous environment, thus increasing its potential bioavailability. Due to its interaction with fibrinogen, resveratrol may serve as an antioxidant at the site of injury. The antioxidative effect of resveratrol may also protect and thus keep the desired characteristics of fibrinogen during the application of this protein as a food additive.
Collapse
Affiliation(s)
- Nikola Gligorijević
- Institute for the Application of Nuclear Energy, Department for Metabolism, University of Belgrade, Banatska 31b, 11080 Belgrade, Serbia; (N.G.); (O.N.)
| | - Mirjana Radomirović
- Center of Excellence for Molecular Food Sciences & Department of Biochemistry, Faculty of Chemistry, University of Belgrade, Studentski trg 12–16, 11000 Belgrade, Serbia;
| | - Andreja Rajković
- Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium;
- Department of Food Safety and Quality Management, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Zemun-Belgrade, Serbia
| | - Olgica Nedić
- Institute for the Application of Nuclear Energy, Department for Metabolism, University of Belgrade, Banatska 31b, 11080 Belgrade, Serbia; (N.G.); (O.N.)
| | - Tanja Ćirković Veličković
- Center of Excellence for Molecular Food Sciences & Department of Biochemistry, Faculty of Chemistry, University of Belgrade, Studentski trg 12–16, 11000 Belgrade, Serbia;
- Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium;
- Global Campus, Ghent University, Yeonsu-gu, Incheon 406-840, Korea
- Serbian Academy of Sciences and Arts, Knez Mihailova 35, 11000 Belgrade, Serbia
| |
Collapse
|
17
|
Atypical antipsychotic clozapine binds fibrinogen and affects fibrin formation. Int J Biol Macromol 2020; 154:142-149. [PMID: 32184141 DOI: 10.1016/j.ijbiomac.2020.03.119] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 12/18/2022]
Abstract
Clozapine is an atypical antipsychotic used for the treatment of schizophrenia. The prescribed target daily doses may reach 900 mg. Literature studies report a connection between clozapine usage and thrombosis development. Our in vitro study aimed to provide insight into molecular bases of this observation, investigating clozapine binding to fibrinogen, the main plasma protein involved in hemostasis. Fibrinogen/clozapine interaction was confirmed by protein fluorescence quenching, with an affinity constant of 1.7 × 105 M-1. Direct interactions did not affect the structure of fibrinogen, nor fibrinogen melting temperature. Clozapine binding affected fibrin formation by reducing coagulation speed and thickness of fibrin fibers suggesting that in the presence of clozapine, fibrinogen may acquire thrombogenic characteristics. Although no difference in fibrin gel porosity was detected, other factors present in the blood may act synergistically with altered fibrin formation to modify fibrin clot, thus increasing the risk for development of thrombosis in patients on clozapine treatment. ORAC and HORAC assays showed that clozapine reduced free radical-induced oxidation of fibrinogen. All observed effects of clozapine on fibrinogen are dose-dependent, with the effect on fibrin formation being more pronounced.
Collapse
|
18
|
Gligorijević N, Šukalović V, Penezić A, Nedić O. Characterisation of the binding of dihydro-alpha-lipoic acid to fibrinogen and the effects on fibrinogen oxidation and fibrin formation. Int J Biol Macromol 2020; 147:319-325. [DOI: 10.1016/j.ijbiomac.2020.01.098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/08/2020] [Accepted: 01/09/2020] [Indexed: 12/21/2022]
|
19
|
Shen Y, Zhu C, Wang Y, Xu J, Xue R, Ji F, Wu Y, Wu Z, Zhang W, Zheng Z, Ye Y. Evaluation the binding of chelerythrine, a potentially harmful toxin, with bovine serum albumin. Food Chem Toxicol 2019; 135:110933. [PMID: 31682930 DOI: 10.1016/j.fct.2019.110933] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 10/17/2019] [Accepted: 10/29/2019] [Indexed: 02/08/2023]
Abstract
Chelerythrine (CHE), a benzophenanthridine alkaloid, is usually used as a nutritional and functional additive in variety of health foods. However, it should be paid enough attention because of its potential toxicity to human health. In this work, the binding mechanism of CHE with bovine serum albumin (BSA) was systematically investigated with spectroscopic approaches. The results showed that the mixture of BSA with CHE could spontaneously cause the formation of BSA-CHE complex through electrostatic interaction under simulative physiological conditions (0.01 mol L-1 Tris-HCl, 0.015 mol L-1 NaCl, pH = 7.4). Site marker competitive displacement experiments exhibited that CHE was primarily bound to the hydrophobic pocket of the site II (subdomain IIIA) of BSA. It has been reported that the binding of small functional molecules to serum albumins remarkably impacts their absorption, distribution, metabolism, conformation, and excretion features. Therefore, this study might be helpful for human to have an in-depth understanding of the biological effect of CHE in vivo and guide human to take it safely and reasonably.
Collapse
Affiliation(s)
- Yizhong Shen
- Engineering Research Center of Bio-Process, Ministry of Education, School of Food & Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Chunlei Zhu
- Engineering Research Center of Bio-Process, Ministry of Education, School of Food & Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Yaping Wang
- Engineering Research Center of Bio-Process, Ministry of Education, School of Food & Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Jingjing Xu
- Engineering Research Center of Bio-Process, Ministry of Education, School of Food & Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Ruyu Xue
- Engineering Research Center of Bio-Process, Ministry of Education, School of Food & Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Fuyun Ji
- Engineering Research Center of Bio-Process, Ministry of Education, School of Food & Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Yiwei Wu
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, 435002, China
| | - Zeyu Wu
- Engineering Research Center of Bio-Process, Ministry of Education, School of Food & Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Wencheng Zhang
- Engineering Research Center of Bio-Process, Ministry of Education, School of Food & Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Zhi Zheng
- Engineering Research Center of Bio-Process, Ministry of Education, School of Food & Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
| | - Yingwang Ye
- Engineering Research Center of Bio-Process, Ministry of Education, School of Food & Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
| |
Collapse
|
20
|
Dong XB, Liu Y, Feng X, Shi D, Bian YB, Ibrahim SA, Huang W. Purification and Characterization of a Cadmium-Binding Protein from Lentinula edodes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:1261-1268. [PMID: 30623660 DOI: 10.1021/acs.jafc.8b05924] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Many organisms possess the ability to produce metal-binding proteins to absorb cadmium. Metallothioneins, an important family of cysteine-rich metal-binding proteins, have been isolated and well characterized. However, Lentinula edodes may have a different type of cadmium-binding protein that contains fewer cysteine residues. In the present study, we purified a cadmium-binding protein from L. edodes (LECBP) by gel filtration and anion exchange chromatography and then identified LECBP by LC-MS/MS. We found LECBP to be a novel cadmium-binding protein, which contained 220 amino acid residues but no cysteine residue. LECBP had a high binding affinity for Cd(II) with a Kd value of 97.3 μM. The percentages of α-helix, β-sheet, β-turn, and random coil in LECBP were 15.7%, 39.4%, 8.0%, and 37.1%, respectively. In addition, high temperatures and an acidic environment influenced the conformation of LECBP. Our results will thus provide a new perspective to understand the mechanism of cadmium accumulation in L. edodes.
Collapse
Affiliation(s)
| | | | - Xi Feng
- Department of Nutrition, Food Science and Packaging , California State University , San Jose , California 95192 , United States
| | - Defang Shi
- Research Institute of Agricultural Products Processing and Nuclear-Agricultural Technology , Hubei Academy of Agricultural Sciences , Wuhan , Hubei 430064 , China
| | | | - Salam A Ibrahim
- Department of Family and Consumer Sciences , North Carolina A&T State University , 171 Carver Hall , Greensboro , North Carolina 27411 , United States
| | | |
Collapse
|
21
|
Minic S, Radomirovic M, Savkovic N, Radibratovic M, Mihailovic J, Vasovic T, Nikolic M, Milcic M, Stanic-Vucinic D, Cirkovic Velickovic T. Covalent binding of food-derived blue pigment phycocyanobilin to bovine β-lactoglobulin under physiological conditions. Food Chem 2018; 269:43-52. [DOI: 10.1016/j.foodchem.2018.06.138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 06/06/2018] [Accepted: 06/27/2018] [Indexed: 12/31/2022]
|
22
|
Ronzetti M, Baljinnyam B, Yasgar A, Simeonov A. Testing for drug-human serum albumin binding using fluorescent probes and other methods. Expert Opin Drug Discov 2018; 13:1005-1014. [PMID: 30320522 PMCID: PMC11369766 DOI: 10.1080/17460441.2018.1534824] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
INTRODUCTION Drug plasma protein binding remains highly relevant to research and drug development, making the assessment and profiling of compound affinity to plasma proteins essential to drug discovery efforts. Although there are a number of fully-characterized methods, they lack the throughput to handle large numbers of compounds. As the evaluation of adsorption, distribution, metabolism, and excretion is addressed earlier in the drug development timeline, the need for higher-throughput methods has grown. Areas Covered: This review will highlight recent developments on methods for profiling drug plasma binding, with an emphasis on fluorescent probes and emerging high-throughput methodologies. Expert Opinion: There have been a number of high-throughput assays developed in recent years to meet the scaled up demands for compound profiling. Ultimately, the selection of assay technology relies on a number of factors, such as capabilities of the laboratory and the breadth and amount of data required. Fluorescent probe displacement assays are highly flexible and amenable to high-throughput screening, easily scaling up to handle large compound libraries. Recent developments in fluorescence technologies, such as homogenous time-resolved fluorescence and probes utilizing the aggregation-induced emission effect, have improved the sensitivity of these assays. Other technologies, such as microscale thermophoresis and quantitative structure-activity relationship modeling, are gaining popularity as alternative techniques for drug plasma protein binding characterization.
Collapse
Affiliation(s)
- Michael Ronzetti
- a National Center for Advancing Translational Sciences , National Institutes of Health , Rockville , Maryland , USA
| | - Bolormaa Baljinnyam
- a National Center for Advancing Translational Sciences , National Institutes of Health , Rockville , Maryland , USA
| | - Adam Yasgar
- a National Center for Advancing Translational Sciences , National Institutes of Health , Rockville , Maryland , USA
| | - Anton Simeonov
- a National Center for Advancing Translational Sciences , National Institutes of Health , Rockville , Maryland , USA
| |
Collapse
|
23
|
Yue Y, Wang Z, Wang Z, Zhang Y, Liu J. A comparative study of binding properties of different coumarin-based compounds with human serum albumin. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.05.060] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
|
24
|
Mallakpour S, Darvishzadeh M. Ultrasonic treatment as recent and environmentally friendly route for the synthesis and characterization of polymer nanocomposite having PVA and biosafe BSA-modified ZnO nanoparticles. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4325] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Shadpour Mallakpour
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry; Isfahan University of Technology; Isfahan 84156-83111 Islamic Republic of Iran
- Research Institute for Nanotechnology and Advanced Materials; Isfahan University of Technology; Isfahan 84156-83111 Islamic Republic of Iran
| | - Marzieh Darvishzadeh
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry; Isfahan University of Technology; Isfahan 84156-83111 Islamic Republic of Iran
| |
Collapse
|
25
|
Effect of chain length on the interactions of sodium N-alkyl prolinates with bovine serum albumin: a spectroscopic investigation and molecular docking simulations. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-017-4251-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
26
|
Cao X, He Y, Liu D, He Y, Hou X, Cheng Y, Liu J. Characterization of interaction between scoparone and bovine serum albumin: spectroscopic and molecular docking methods. RSC Adv 2018; 8:25519-25525. [PMID: 35539773 PMCID: PMC9082657 DOI: 10.1039/c8ra04065f] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Accepted: 07/02/2018] [Indexed: 11/21/2022] Open
Abstract
Scoparone is a major biological active substance derived from the traditional Chinese herbal medicine called Artemisia capillaris. It has been confirmed that scoparone has anti-inflammatory, anti-tumor, hepatoprotective and antioxidant effects. However, the binding interaction of scoparone with bovine serum albumin (BSA) still remains unknown. Therefore, the present study was conducted to clarify the binding interaction of scoparone with BSA under simulated physiological conditions (pH = 7.4) by utilizing spectroscopic and molecular docking methods. The formation of the scoparone–BSA complex was identified by UV-vis absorption spectroscopy experiment results. The fluorescence experiment results revealed that the quenching mechanism was static quenching and the binding procedure was spontaneous mainly driven by hydrophobic interaction. At 310 K, the number of binding sites was approximately equal to 1 and the binding constant was 6.79 × 105 mol L−1. The binding distance (4.81 nm) between scoparone and BSA was determined by Förster's non-radiative energy transfer theory. Molecular docking and site marker competitive experiment results verified that scoparone was more likely to be located in site I of BSA. In addition, the results of synchronous fluorescence spectroscopy and circular dichroism spectroscopy experiments proved that scoparone slightly changed the conformation of BSA by binding interaction with BSA. These findings would be useful for understanding the pharmacokinetics of scoparone in vivo, including scoparone transport, distribution, metabolism and excretion. The interaction of scoparone with bovine serum albumin (BSA) was studied by utilizing spectroscopic and molecular docking methodologies.![]()
Collapse
Affiliation(s)
- Xiangyu Cao
- School of Life Science
- Liaoning University
- Shenyang
- P. R. China
| | - Yonglin He
- School of Life Science
- Liaoning University
- Shenyang
- P. R. China
| | - Dan Liu
- School of Life Science
- Liaoning University
- Shenyang
- P. R. China
| | - Yin He
- School of Life Science
- Liaoning University
- Shenyang
- P. R. China
| | - Xiao Hou
- School of Life Science
- Liaoning University
- Shenyang
- P. R. China
| | - Ye Cheng
- School of Life Science
- Liaoning University
- Shenyang
- P. R. China
| | - Jianli Liu
- School of Life Science
- Liaoning University
- Shenyang
- P. R. China
| |
Collapse
|