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Aksoy M, Hamzalıoğlu A, Gökmen V. Investigating the Formation of In Vitro Immunogenic Gluten Peptides after Covalent Modification of Their Structure with Green Tea Phenolic Compounds under Alkaline Conditions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:13898-13905. [PMID: 38835329 PMCID: PMC11191684 DOI: 10.1021/acs.jafc.4c00334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 05/18/2024] [Accepted: 05/21/2024] [Indexed: 06/06/2024]
Abstract
Celiac disease is an autoimmune disorder triggered by immunogenic gluten peptides produced during gastrointestinal digestion. To prevent the production of immunogenic gluten peptides, the stimulation of covalent-type protein-polyphenol interactions may be promising. In this study, gluten interacted with green tea extract (GTE) at pH 9 to promote the covalent-type gluten-polyphenol interactions, and the number of immunogenic gluten peptides, 19-mer, 26-mer, and 33-mer, was monitored after in vitro digestion. Treatment of gluten with GTE provided an increased antioxidant capacity, decreased amino group content, and increased thermal properties. More importantly, there was a remarkable (up to 73%) elimination of immunogenic gluten peptide release after the treatment of gluten with 2% GTE at 50 °C and pH 9 for 2 h. All of these confirmed that gluten was efficiently modified by GTE polyphenols under the stated conditions. These findings are important in developing new strategies for the development of gluten-free or low-gluten food products with reduced immunogenicity.
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Affiliation(s)
- Merve Aksoy
- Food Quality and Safety (FoQuS)
Research Group, Department of Food Engineering, Hacettepe University, Beytepe 06800, Ankara, Turkey
| | - Aytül Hamzalıoğlu
- Food Quality and Safety (FoQuS)
Research Group, Department of Food Engineering, Hacettepe University, Beytepe 06800, Ankara, Turkey
| | - Vural Gökmen
- Food Quality and Safety (FoQuS)
Research Group, Department of Food Engineering, Hacettepe University, Beytepe 06800, Ankara, Turkey
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2
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Ebrahimi B, Mokhtari T, Ghaffari N, Adabi M, Hassanzadeh G. Acellular spinal cord scaffold containing quercetin-encapsulated nanoparticles plays an anti-inflammatory role in functional recovery from spinal cord injury in rats. Inflammopharmacology 2024:10.1007/s10787-024-01478-z. [PMID: 38702577 DOI: 10.1007/s10787-024-01478-z] [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: 01/23/2024] [Accepted: 04/09/2024] [Indexed: 05/06/2024]
Abstract
Inflammatory responses play a crucial role in the pathophysiology of spinal cord injury (SCI) and developing new approaches to establish an anti-inflammatory environment for the promotion of neuroregeneration holds promise as a potential approach. In this study, our aim was to investigate the potential of combining an acellular spinal cord scaffold (ASCS) with quercetin-loaded bovine serum albumin (Qu/BSA) nanoparticles (NPs) for the treatment of SCI. The ASCS was prepared using physical and chemical methods, while the Qu/BSA NPs were prepared through a desolvation technique. The NPs exhibited favorable characteristics, including a mean size of 203 nm, a zeta potential of -38, and an encapsulation efficiency of 96%. Microscopic evaluation confirmed the successful distribution of NPs on the walls of ASCS. Animal studies revealed that Qu/BSA NPs group exhibited a significant decrease in NLRP3, ASC, and Casp1 gene expression compared to the SCI group (p < 0.0001). The findings indicated a significant decrease in the NLRP3, ASC, and Casp1 protein level between the Qu/BSA/ASCS group and the SCI group (p < 0.0001). Moreover, treatment with ASCS containing either blank BSA (B/BSA) NPs or Qu/BSA NPs effectively promoted functional recovery via increasing the amount of nestin- and glial fibrillary acidic protein (GFAP)-positive cells in the site of injury. Notably, Qu/BSA/ASCS exhibited superior outcomes compared to B/BSA/ASCS. Overall, the combination of ASCS with the Qu delivery system presents a promising therapeutic approach for SCI by inhibiting inflammatory responses and promoting neuroregeneration, leading to the restoration of motor function in animals. This study demonstrates the potential of utilizing biomaterials and NPs to enhance the effectiveness of SCI treatment.
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Affiliation(s)
- Babak Ebrahimi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Tahmineh Mokhtari
- Department of Pharmacology, Hubei University of Medicine, Shiyan, China.
- Department of Histology and Embryology, Faculty of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China.
| | - Neda Ghaffari
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Adabi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Hassanzadeh
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
- Department of Neurosciences and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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3
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Chahardoli A, Jalilian F, Shokoohinia Y, Fattahi A. The role of quercetin in the formation of titanium dioxide nanoparticles for nanomedical applications. Toxicol In Vitro 2023; 87:105538. [PMID: 36535556 DOI: 10.1016/j.tiv.2022.105538] [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: 08/21/2022] [Revised: 11/15/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
The current work aimed to synthesize and characterize titanium dioxide nanoparticles (TiO2NPs) using quercetin (QE) and evaluate their biological activities, i.e., anti-hemolytic, anti-inflammatory, and cytotoxicity effects. The crystallographic phase and morphology of biosynthesized QE-TiO2NPs were characterized by XRD (X-Ray Diffraction) and TEM/FE-SEM (Transmission/Field-Emission Scanning Electron Microscopy) micrographs. Functional groups involved in the synthesis process were determined by FTIR spectroscopy (Fourier Transform-Infrared Spectroscopy). Based on the characterization results, selected QE-TiO2NPs showed a rutile phase, spherical shape, and a size range of 7.3-39 nm. The QE-TiO2NPs did not show a hemolytic effect. They indicated 95.3% red blood cells (RBCs) membrane stabilization activity and 82.6% inhibition of bovine serum albumin (BSA) denaturation, similar to a standard drug, which proved their anti-inflammatory effects. The attained results from cytotoxicity studies revealed the toxic effects of QE-TiO2NPs with IC50 values below 100 and 50 μg/mL for human breast cancer cells of MCF-7 and melanoma cancer cells of A375, respectively. These NPs did not significantly affect normal skin fibroblast cells up to 50 μg/mL and only showed a 16% inhibition rate on the cell viability at 100 μg/mL. These NPs also induced excessive ROS generation. This work established the blood/biocompatibility and excellent nanomedical applications of biosynthesized QE-TiO2NPs.
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Affiliation(s)
- Azam Chahardoli
- Department of Biology, Faculty of Science, Razi University, Kermanshah, Iran.
| | - Fereshteh Jalilian
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Yalda Shokoohinia
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran; Ric Scalzo Institute for Botanical Research, Southwest College of Naturopathic Medicine, Tempe, AZ, USA.
| | - Ali Fattahi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran; Medical Biology Research Center, Health Technologies Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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4
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Alahmadi A, Dmello A. Detrimental Effects of Elevated Temperatures on the Structure and Activity of Phenylalanine Ammonia Lyase-Bovine Serum Albumin Mixtures and the Stabilizing Potential of Surfactant and Sugars. AAPS PharmSciTech 2022; 23:297. [DOI: 10.1208/s12249-022-02446-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/26/2022] [Indexed: 11/16/2022] Open
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Hu Y, Huang D, Li Y, Li Z, Cai X, Wang F. Investigation on Characterization of Novel Anti-bacterial Chitosan/Gelatin Composite Membranes Loaded with Quercetin via Electrophoretic Deposition. JOURNAL OF BIOMATERIALS SCIENCE, POLYMER EDITION 2022; 34:734-752. [PMID: 36369784 DOI: 10.1080/09205063.2022.2145701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Peri-implantitis is characterized by inflammation resulting from bacterial infections in peri-implant connective tissue. The purpose of this study was to prepare and characterize chitosan/gelatin (CSG)-based membranes with antibacterial agents to functionalize the surface of titanium (Ti) implants. CSG membranes were prepared on Ti substrates via electrophoretic deposition (EPD). Quercetin, an active flavonoid responsible for fulfilling various plant functions, was introduced as an antibacterial agent to be loaded into the membrane during preparation. The fabrication of quercetin-loaded CSG membranes via EPD was also investigated. Fluorescent microscope, Attenuated Total Reflection Fourier transform infrared spectroscopy, and X-ray diffraction results verified the entrapment of quercetin. The membranes swelled by 150% of mass after rehydration. The antibacterial effects of quercetin on Gram-positive bacteria, such as Staphylococcus aureus and methicillin-resistant Staphylococcus aureus, were verified by spread-plate, scanning electron microscopy, and live/dead staining. Cytological experiments showed that the biocompatibility of rat bone marrow mesenchymal stromal cells was promoted by quercetin-loaded membranes, exclusively in the group with the highest content of quercetin. The quercetin-loaded groups also enhanced the antineoplastic activity of MG-63 cells. These results suggested that quercetin-loaded CSG membranes were successfully fabricated via EPD. Thus, biocompatible and antibacterial membranes could be a potential strategy to functionalize Ti implants.
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Affiliation(s)
- Yinghui Hu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Oral Implantology and Prosthodontics, Shenzhen Stomatology Hospital Affiliated to Shenzhen University, Shenzhen, China
| | - Dan Huang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yusang Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Zhiwen Li
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, China
| | - Xinjie Cai
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Prosthodontics, Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Fushi Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Cariology and Endodontics, Hospital of Stomatology, Wuhan University, Wuhan, China
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Naik R, Seetharamappa J. Elucidating the binding mechanism of an antimigraine agent with a model protein: insights from molecular spectroscopic, calorimetric and computational approaches. J Biomol Struct Dyn 2022; 41:3686-3701. [PMID: 35322751 DOI: 10.1080/07391102.2022.2053747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Sumatriptan (SUM), a serotonin activator used to treat migraines and cluster headaches. Molecular spectroscopic methods including fluorescence quenching, time dependent fluorescence, FRET, absorption, circular dichroism, differential scanning calorimetric and computational approaches were employed to unravel the interaction between sumatriptan and bovine serum albumin (BSA). The fluorescence quenching studies suggested the interaction between SUM and BSA with a moderate binding with the binding constant (Kb) in the order of 104. The findings of temperature and time dependent fluorescence quenching studies confirmed the role of static quenching mechanism. Thermodynamic parameters suggested the key role of electrostatic force in the interaction of SUM with BSA. Absorption and CD spectral studies revealed the bioenvironmental changes around the Trp in BSA upon binding of SUM. Calorimetric based thermal denaturation results confirmed that the thermal stability of BSA was improved in the presence of SUM. resulted in the this decreased flexibility of protein chain. Site competitive studies indicated SUM was located in the hydrophobic cavity of site I which was further confirmed by the docking and dynamic simulation studies. Additionally, molecular dynamics simulations inferred the microenvironmental condition around the SUM and the amino acids and forces involved in the binding of SUM with BSA.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Roopa Naik
- Department of Chemistry, Karnatak University, Dharwad, Karnataka, India
| | - J Seetharamappa
- Department of Chemistry, Karnatak University, Dharwad, Karnataka, India
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7
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Usacheva T, Gamov G, Bychkova A, Anufrikov Y, Shasherina A, Alister D, Kuranova N, Sharnin V. Binding of quercetin and curcumin to human serum albumin in aqueous dimethyl sulfoxide and in aqueous ethanol. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 2022; 147:5511-5518. [PMID: 35283663 PMCID: PMC8897738 DOI: 10.1007/s10973-022-11216-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
UNLABELLED The paper reports the spectrofluorimetric and calorimetric study of binding of two hydrophobic biologically active molecules with antioxidant ability, flavonoids quercetin, and curcumin, to human serum albumin (HSA) in water, aqueous DMSO (0.05 and 0.1 mol. fraction of DMSO), and aqueous ethanol (0.05 mol. fraction of EtOH). Both flavonoids induce the quenching of HSA fluorescence. The stability constants of associates, as well as the changes in enthalpy of the reaction between quercetin and protein, were evaluated. The influence of solvent composition and additions of hydroxypropyl-β-cyclodextrin as a solubilizer of hydrophobic molecules, on the association processes is discussed. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10973-022-11216-8.
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Affiliation(s)
- Tatyana Usacheva
- Ivanovo State University of Chemistry and Technology, Ivanovo, Russia
| | - George Gamov
- Ivanovo State University of Chemistry and Technology, Ivanovo, Russia
| | - Anna Bychkova
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - Yuriy Anufrikov
- Center for Thermogravimetric and Calorimetric Research, SPbSU Science Park, Saint Petersburg, Russia
| | - Anna Shasherina
- Center for Thermogravimetric and Calorimetric Research, SPbSU Science Park, Saint Petersburg, Russia
| | - Diana Alister
- Ivanovo State University of Chemistry and Technology, Ivanovo, Russia
| | - Natalya Kuranova
- Ivanovo State University of Chemistry and Technology, Ivanovo, Russia
| | - Valentin Sharnin
- Ivanovo State University of Chemistry and Technology, Ivanovo, Russia
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8
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Tunit P, Thammarat P, Okonogi S, Chittasupho C. Hydrogel Containing Borassus flabellifer L. Male Flower Extract for Antioxidant, Antimicrobial, and Anti-Inflammatory Activity. Gels 2022; 8:gels8020126. [PMID: 35200507 PMCID: PMC8871753 DOI: 10.3390/gels8020126] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/10/2022] [Accepted: 02/12/2022] [Indexed: 12/21/2022] Open
Abstract
Borassus flabellifer L. is a plant in Arecaceae family, widely distributed and cultivated in tropical Asian countries. The purpose of this study was to identify the bioactive compounds of B.flabellifer L. male flower ethanolic extract and investigate the antioxidant, anti-inflammatory, and antibacterial activities against Cutibacterium acnes. Total phenolic compounds and total flavonoids in B.flabellifer L. male flower ethanolic extract were determined by the Folin–Ciocalteu method and aluminum chloride colorimetric assay, respectively. Active substances in the extract and their quantities were analyzed by liquid chromatography and mass spectrometry (LC–MS/MS). The antioxidant evaluation was carried out using DPPH, ABTS free radical scavenging assays, and FRAP assay. C. acnes inhibitory activity was performed by the broth microdilution method. Anti-inflammatory activity was determined by the protein denaturation assay. In addition, gel containing different amounts of B.flabellifer L. male flower extract was formulated. The physical stability of the gel was observed by measuring viscosity and pH after six heating and cooling cycles, as well as 1-month storage at 4, 30, and 45 °C. The total phenolic content in the extract was 268.30 ± 12.84 mg gallic acid equivalent/g crude dry extract. The total flavonoid contents in the extract were 1886.38 ± 55.86 mg quercetin equivalent/g extract and 2884.88 ± 128.98 mg EGCG equivalent/g extract, respectively. The LC–MS/MS analysis revealed the presence of gallic acid, coumarin, and quercetin and the concentrations of quercetin, coumarin, and gallic acid in B. flabellifer male flower ethanolic extract were 0.912, 0.021, and 1.610 µg/mL, respectively. DPPH and ABTS antioxidant assays indicated that the B.flabellifer L. male flower extract had IC50 values of 31.54 ± 0.43 and 164.5 ± 14.3 µg/mL, respectively. FRAP assay revealed that the B.flabellifer male flower extract had high ferric ion reducing power. The extract was able to inhibit C.acnes bacteria with a minimum inhibitory concentration (MIC) of 250 mg/mL. At 250 and 500 µg/mL, the extract demonstrated the highest anti-inflammatory activity. The gel containing 31.25% w/w and 62.5% w/w showed good physical stability after six heating and cooling cycles, as well as 1-month storage.
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Affiliation(s)
- Prakairat Tunit
- Thai Traditional Medicine Program, Faculty of Nursing and Allied Health Sciences, Phetchaburi Rajabhat University, Phetchaburi 76000, Thailand;
| | - Phanit Thammarat
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand; (P.T.); (S.O.)
| | - Siriporn Okonogi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand; (P.T.); (S.O.)
- Research Center of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chuda Chittasupho
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand; (P.T.); (S.O.)
- Research Center of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence:
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Wu J, Qi Y, Liu Z, Jia H, Hu Y, Feng F. Investigation on the Interaction of Dy(Ш)/Rutin Complexes with Bovine Serum Albumin by Spectroscopic Methods. J SOLUTION CHEM 2021. [DOI: 10.1007/s10953-021-01128-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Precupas A, Sandu R, Neculae AVF, Neacsu A, Popa VT. Calorimetric, spectroscopic and computational investigation of morin binding effect on bovine serum albumin stability. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115953] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Yang W, Qu X, Deng C, Dai L, Zhou H, Xu G, Li B, Yulia N, Liu C. Heat sensitive protein-heat stable protein interaction: Synergistic enhancement in the thermal co-aggregation and gelation of lactoferrin and α-lactalbumin. Food Res Int 2021; 142:110179. [DOI: 10.1016/j.foodres.2021.110179] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/20/2021] [Accepted: 01/24/2021] [Indexed: 11/15/2022]
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12
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Effects of serum matrix on molecular interactions between drugs and target proteins revealed by giant magneto-resistive bio-sensing techniques. J Pharm Biomed Anal 2021; 198:114015. [PMID: 33725588 DOI: 10.1016/j.jpba.2021.114015] [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: 11/26/2020] [Revised: 03/03/2021] [Accepted: 03/05/2021] [Indexed: 11/20/2022]
Abstract
We demonstrated that effects of serum matrix on molecular interactions between drugs and target proteins can be investigated in real time using magnetic bio-sensing techniques. A giant magneto-resistive (GMR) sensor was used on which target proteins were fixed and superparamagnetic nanoparticles (diameter: 50 nm) conjugated with drug were used in phosphate buffer, with and without serum. In this study, the following drug-protein pairs were investigated: quercetin and cAMP-dependent protein kinase A (PKA), Infliximab and tumor necrosis factor alpha (TNFα), and Bevacizumab and vascular endothelial growth factor (VEGF). For the quercetin and PKA pair, the time profile of the signal from the GMR sensor due to binding between quercetin and PKA clearly changed before and after the addition of serum. Moreover, it was revealed that not only the association process, but also the dissociation process was influenced by the addition of serum, suggesting that the quercetin and PKA complex may partially contain serum proteins, which affect the formation and stability of the complex. For antibody drugs, little effects of serum matrix were observed on both the association and dissociation processes. These clear differences may be attributed to the hydrophobic and electrostatic character of the drug molecule, target protein, and serum proteins. The real-time monitoring of molecular interactions in a biological matrix enabled by the GMR bio-sensing technique is a powerful tool to investigate such complicated molecular interactions. Understanding the molecular interactions that occur in a biological matrix is indispensable for determining the mechanism of action of the drugs and pharmacokinetics/pharmacodynamics inside the body. Additionally, this method can be applied for the analysis of the influence of any kind of third molecule that may have some interaction between two molecules, for example, an inhibitor drug against the interaction between two kinds of proteins.
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Precupas A, Gheorghe D, Botea-Petcu A, Leonties AR, Sandu R, Popa VT, Mariussen E, Naouale EY, Rundén-Pran E, Dumit V, Xue Y, Cimpan MR, Dusinska M, Haase A, Tanasescu S. Thermodynamic Parameters at Bio-Nano Interface and Nanomaterial Toxicity: A Case Study on BSA Interaction with ZnO, SiO 2, and TiO 2. Chem Res Toxicol 2020; 33:2054-2071. [PMID: 32600046 DOI: 10.1021/acs.chemrestox.9b00468] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Understanding nanomaterial (NM)-protein interactions is a key issue in defining the bioreactivity of NMs with great impact for nanosafety. In the present work, the complex phenomena occurring at the bio/nano interface were evaluated in a simple case study focusing on NM-protein binding thermodynamics and protein stability for three representative metal oxide NMs, namely, zinc oxide (ZnO; NM-110), titanium dioxide (TiO2; NM-101), and silica (SiO2; NM-203). The thermodynamic signature associated with the NM interaction with an abundant protein occurring in most cell culture media, bovine serum albumin (BSA), has been investigated by isothermal titration and differential scanning calorimetry. Circular dichroism spectroscopy offers additional information concerning adsorption-induced protein conformational changes. The BSA adsorption onto NMs is enthalpy-controlled, with the enthalpic character (favorable interaction) decreasing as follows: ZnO (NM-110) > SiO2 (NM-203) > TiO2 (NM-101). The binding of BSA is spontaneous, as revealed by the negative free energy, ΔG, for all systems. The structural stability of the protein decreased as follows: TiO2 (NM-101) > SiO2 (NM-203) > ZnO (NM-110). As protein binding may alter NM reactivity and thus the toxicity, we furthermore assessed its putative influence on DNA damage, as well as on the expression of target genes for cell death (RIPK1, FAS) and oxidative stress (SOD1, SOD2, CAT, GSTK1) in the A549 human alveolar basal epithelial cell line. The enthalpic component of the BSA-NM interaction, corroborated with BSA structural stability, matched the ranking for the biological alterations, i.e., DNA strand breaks, oxidized DNA lesions, cell-death, and antioxidant gene expression in A549 cells. The relative and total content of BSA in the protein corona was determined using mass-spectrometry-based proteomics. For the present case study, the thermodynamic parameters at bio/nano interface emerge as key descriptors for the dominant contributions determining the adsorption processes and NMs toxicological effect.
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Affiliation(s)
- Aurica Precupas
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, Bucharest 060021, Romania
| | - Daniela Gheorghe
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, Bucharest 060021, Romania
| | - Alina Botea-Petcu
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, Bucharest 060021, Romania
| | - Anca Ruxandra Leonties
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, Bucharest 060021, Romania
| | - Romica Sandu
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, Bucharest 060021, Romania
| | - Vlad Tudor Popa
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, Bucharest 060021, Romania
| | - Espen Mariussen
- NILU-Norwegian Institute for Air Research, Kjeller 2027, Norway
| | | | | | - Veronica Dumit
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, Berlin 10589, Germany
| | - Ying Xue
- Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen 5020, Norway
| | - Mihaela Roxana Cimpan
- Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen 5020, Norway
| | - Maria Dusinska
- NILU-Norwegian Institute for Air Research, Kjeller 2027, Norway
| | - Andrea Haase
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, Berlin 10589, Germany
| | - Speranta Tanasescu
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, Bucharest 060021, Romania
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Pal S, Pyne P, Samanta N, Ebbinghaus S, Mitra RK. Thermal stability modulation of the native and chemically-unfolded state of bovine serum albumin by amino acids. Phys Chem Chem Phys 2020; 22:179-188. [DOI: 10.1039/c9cp04887a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cells are crowded with various cosolutes including salts, osmolytes, nucleic acids, peptides and proteins.
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Affiliation(s)
- Saikat Pal
- Department of Chemical
- Biological and Macromolecular Sciences
- S N Bose National Centre for Basic Sciences
- Kolkata 700106
- India
| | - Partha Pyne
- Department of Chemical
- Biological and Macromolecular Sciences
- S N Bose National Centre for Basic Sciences
- Kolkata 700106
- India
| | - Nirnay Samanta
- Institute for Physical and Theoretical Chemistry
- TU Braunschweig
- BRICS
- 56 D-38106 Braunschweig
- Germany
| | - Simon Ebbinghaus
- Institute for Physical and Theoretical Chemistry
- TU Braunschweig
- BRICS
- 56 D-38106 Braunschweig
- Germany
| | - Rajib Kumar Mitra
- Department of Chemical
- Biological and Macromolecular Sciences
- S N Bose National Centre for Basic Sciences
- Kolkata 700106
- India
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15
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Iqbal Z, Ahmad A, Haque Z, Khan MS, Khan MS, Iqbal MS. RP-HPLC Estimation of Flavonol Derivatives and Phenolic Acids in Capsicum annuum L. and their Correlation with In Vitro Anti-Inflammatory Activity. Curr Pharm Biotechnol 2019; 21:149-157. [PMID: 31566132 DOI: 10.2174/1389201020666190930115035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 11/06/2018] [Accepted: 07/16/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Flavonol derivative and phenolic acids derived from the plants function as free radical scavengers, reducing agents, and quenchers for the formation of singlet oxygen. Flavonoids and phenolic constituents also play an important role in various human diseases and disorders primarily through modulation of inflammatory responses. OBJECTIVE To estimate the Flavonol Derivatives (FD) and phenolic acids (PA) in Capsicum annuum (CA) and other important phytochemicals having an anti-inflammatory effect. METHODS In the present study, FD and PA were estimated in CA and in vitro anti-inflammatory activity (pilot study) was determined and correlation was established. RESULTS The results were found to be significant using RP-HPLC. FD and PA were found to be 0.0659±0.0058 and 0.0862±0.0.0134 mg/gram dry weight, respectively. For in vitro anti-inflammatory activity, the inhibition of albumin denaturation and antiproteinase activity was found to be maximum in Quercetin (QE) with 98.230±1.589% and 59.906±1.529%, respectively. Heat-induced hemolysis of erythrocytes was found to be maximum in salicylic acid (SA) (71.830±2.838%). Hypotonicity-induced hemolysis showed significant activity with QE (76.770±3.475%). Lipoxygenase and cyclooxygenase inhibition was found to be maximum in QE with 56.930±4.069% and 61.660±3.135%, respectively. CONCLUSION A strong positive correlation of 0.9 was observed between the extract of CA and standard QE and SA against the anti-inflammatory activity. Therefore, the role of FD and PA has been postulated to be an active phytochemical of CA accountable for its anti-inflammatory activity. However further work is desirable to fully elucidate the phytochemicals responsible for their anti-inflammatory activity and to develop better herbal drug formulations.
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Affiliation(s)
- Zahra Iqbal
- Department of Botany, University of Lucknow, Uttar Pradesh 226007, India
| | - Ausaf Ahmad
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, 226028, India
| | - Ziyaul Haque
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, 226028, India
| | - Mohammed S Khan
- Department of Biosciences, Integral University, 226026, India
| | - Mohd S Khan
- Department of Biosciences, Integral University, 226026, India
| | - Mohammed S Iqbal
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, 226028, India
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16
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Aricov L, Angelescu DG, Băran A, Leontieş AR, Popa VT, Precupaş A, Sandu R, Stîngă G, Anghel DF. Interaction of piroxicam with bovine serum albumin investigated by spectroscopic, calorimetric and computational molecular methods. J Biomol Struct Dyn 2019; 38:2659-2671. [PMID: 31315508 DOI: 10.1080/07391102.2019.1645733] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The binding of drugs to serum proteins is governed by weak non-covalent forces. In this study, the nature and magnitude of the interactions between piroxicam (PRX) and bovine serum albumin (BSA) was assessed using spectroscopic, calorimetric and computational molecular methods. The fluorescence data revealed an atypical behavior during PRX and BSA interaction. The quenching process of tryptophan (Trp) by PRX is a dual one (approximately equal static and dynamic quenched components). The FRET results indicate that a non-radiative transfer of energy occurred. The association constant and the number of binding sites indicate moderate PRX and BSA binding. The competitive binding study indicates that PRX is bound to site I from the hydrophobic pocket of subdomain IIA of BSA. The synchronous spectra showed that the microenvironment around the BSA fluorophores and protein conformation do not change considerably. The Trp lifetimes revealed that PRX mainly quenches the fluorescence of Trp-213 situated in the hydrophobic domain. The CD and DSC investigation show that addition of PRX stabilizes the protein structure. ITC results revealed that BSA-PRX binding involves a combination of electrostatic, hydrophobic and hydrogen interactions. The analysis of the computational data is consistent with the experimental results. This thorough investigation of the PRX-BSA binding may provide support for other studies concerning moderate affinity drugs with serum protein.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Ludmila Aricov
- "Ilie Murgulescu" Institute of Physical Chemistry of the Romanian Academy, Bucharest, Romania
| | - Daniel George Angelescu
- "Ilie Murgulescu" Institute of Physical Chemistry of the Romanian Academy, Bucharest, Romania
| | - Adriana Băran
- "Ilie Murgulescu" Institute of Physical Chemistry of the Romanian Academy, Bucharest, Romania
| | - Anca Ruxandra Leontieş
- "Ilie Murgulescu" Institute of Physical Chemistry of the Romanian Academy, Bucharest, Romania
| | - Vlad Tudor Popa
- "Ilie Murgulescu" Institute of Physical Chemistry of the Romanian Academy, Bucharest, Romania
| | - Aurica Precupaş
- "Ilie Murgulescu" Institute of Physical Chemistry of the Romanian Academy, Bucharest, Romania
| | - Romică Sandu
- "Ilie Murgulescu" Institute of Physical Chemistry of the Romanian Academy, Bucharest, Romania
| | - Gabriela Stîngă
- "Ilie Murgulescu" Institute of Physical Chemistry of the Romanian Academy, Bucharest, Romania
| | - Dan-Florin Anghel
- "Ilie Murgulescu" Institute of Physical Chemistry of the Romanian Academy, Bucharest, Romania
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17
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A biophysical insight into structural and functional state of human serum albumin in uremia mimic milieu. Int J Biol Macromol 2019; 131:697-705. [DOI: 10.1016/j.ijbiomac.2019.03.123] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 03/19/2019] [Accepted: 03/19/2019] [Indexed: 02/06/2023]
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18
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Wang BL, Zhou KL, Lou YY, Pan DQ, Kou SB, Lin ZY, Shi JH. Assessment on the binding affinity between ritonavir with model transport protein: a combined multi-spectroscopic approaches with computer simulation. J Biomol Struct Dyn 2019; 38:744-755. [DOI: 10.1080/07391102.2019.1587515] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Bao-Li Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Kai-Li Zhou
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Yan-Yue Lou
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Dong-Qi Pan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Song-Bo Kou
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Zhen-Yi Lin
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Jie-Hua Shi
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
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19
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Baali N, Mezrag A, Bouheroum M, Benayache F, Benayache S, Souad A. Anti-inflammatory and Antioxidant Effects of Lotus corniculatus on Paracetamol-induced Hepatitis in Rats. Antiinflamm Antiallergy Agents Med Chem 2019; 19:128-139. [PMID: 30799800 PMCID: PMC7475933 DOI: 10.2174/1871523018666190222120752] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/11/2019] [Accepted: 02/14/2019] [Indexed: 12/23/2022]
Abstract
Background: Herbal medicines have been used in the treatment of liver diseases for a long time. The current study was elaborated to evaluate in vitro and in vivo antioxidant and anti-inflammatory effects of Lotus corniculatus (L. corniculatus) butanolic extract. Methods: The in vitro antioxidant and anti-inflammatory properties of L. corniculatus were investigated by employing DPPH radical scavenging, H2O2 scavenging and BSA denaturation assays. In vivo antioxidant and anti-inflammatory effects of L. corniculatus were evaluated against paracetamol (APAP)-induced hepatitis in rats. L.corniculatus at doses of 100 and 200 mg/kg was administered orally once daily for seven days. Serum transaminases (AST and ALT) and lactate dehydrogenase (LDH), total bilirubin levels, liver malondialdehyde (MDA), reduced glutathione (GSH), glutathione S- transferase (GST) and superoxide dismutase (SOD) levels and inflammatory markers, such as serum C-reactive protein (CRP), circulating and liver myeloperoxidase (MPO) levels were investigated. Further histopathological analysis of the liver sections was performed to support the effectiveness of L. corniculatus. Results:L. corniculatus exhibited strong antioxidant and anti-inflammatory effects in vitro. In the in vivo study, our findings demonstrate that L. corniculatus (100 and 200 mg/kg) administration led to an amelioration of APAP effects on liver histology, liver functions parameters (AST, ALT, LDH, and total bilirubin levels) and liver oxidative stress markers (MDA, GSH, GST and SOD levels). Furthermore, serum CRP, circulating MPO and liver MPO levels were declined by both doses of L. corniculatus extract. The best benefits were observed with 200 mg/kg of L. corniculatus extract. Conclusion: Antioxidant and anti-inflammatory effects of L. corniculatus extract may be due to the presence of active components.
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Affiliation(s)
- Nacera Baali
- Laboratory of Biology and Environment, Faculty of Nature and Life Sciences, University of Mentouri Brothers, Constantine, Algeria
| | - Abderahmane Mezrag
- VARENBIOMOL Research Unit, University of Mentouri Brothers, Constantine, Algeria.,Saad Dahleb University, Blida, Algeria
| | - Mohamed Bouheroum
- VARENBIOMOL Research Unit, University of Mentouri Brothers, Constantine, Algeria
| | - Fadila Benayache
- VARENBIOMOL Research Unit, University of Mentouri Brothers, Constantine, Algeria
| | - Samir Benayache
- VARENBIOMOL Research Unit, University of Mentouri Brothers, Constantine, Algeria
| | - Amedah Souad
- Laboratory of Biology and Environment, Faculty of Nature and Life Sciences, University of Mentouri Brothers, Constantine, Algeria
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20
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Precupas A, Leonties AR, Neacsu A, Sandu R, Popa VT. Gallic acid influence on bovine serum albumin thermal stability. NEW J CHEM 2019. [DOI: 10.1039/c9nj00115h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A thermoanalytical approach reveals the dual action of GA on BSA thermal stability.
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Affiliation(s)
- Aurica Precupas
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy
- 060021 – Bucharest
- Romania
| | - Anca Ruxandra Leonties
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy
- 060021 – Bucharest
- Romania
| | - Andreea Neacsu
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy
- 060021 – Bucharest
- Romania
| | - Romica Sandu
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy
- 060021 – Bucharest
- Romania
| | - Vlad Tudor Popa
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy
- 060021 – Bucharest
- Romania
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21
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Hu Y, Bao C, Li D, You L, Du Y, Liu B, Li X, Ren F, Li Y. The construction of enzymolyzed α-lactalbumin based micellar nanoassemblies for encapsulating various kinds of hydrophobic bioactive compounds. Food Funct 2019; 10:8263-8272. [DOI: 10.1039/c9fo02035g] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Protein-based nanoassemblies can encapsulate hydrophobic compounds into their hydrophobic region and effectively improve their aqueous solubility and stability.
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Affiliation(s)
- Yulin Hu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Key Laboratory of Functional Dairy
- College of Food Science and Nutritional Engineering
- China Agricultural University
- China
| | - Cheng Bao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Key Laboratory of Functional Dairy
- College of Food Science and Nutritional Engineering
- China Agricultural University
- China
| | - Dan Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Key Laboratory of Functional Dairy
- College of Food Science and Nutritional Engineering
- China Agricultural University
- China
| | - Lingxin You
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Key Laboratory of Functional Dairy
- College of Food Science and Nutritional Engineering
- China Agricultural University
- China
| | - Yizheng Du
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Key Laboratory of Functional Dairy
- College of Food Science and Nutritional Engineering
- China Agricultural University
- China
| | - Bin Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Key Laboratory of Functional Dairy
- College of Food Science and Nutritional Engineering
- China Agricultural University
- China
| | - Xin Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Key Laboratory of Functional Dairy
- College of Food Science and Nutritional Engineering
- China Agricultural University
- China
| | - Fazheng Ren
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Key Laboratory of Functional Dairy
- College of Food Science and Nutritional Engineering
- China Agricultural University
- China
| | - Yuan Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Key Laboratory of Functional Dairy
- College of Food Science and Nutritional Engineering
- China Agricultural University
- China
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22
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Synthesis and characterization of two new trans palladium (II) complexes containing benzylamine ligand: DNA/BSA interactions, molecular docking and in vitro cytotoxic activity. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.02.027] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Chatziathanasiadou MV, Geromichalou EG, Sayyad N, Vrettos EI, Katsikoudi A, Stylos E, Bellou S, Geromichalos GD, Tzakos AG. Amplifying and broadening the cytotoxic profile of quercetin in cancer cell lines through bioconjugation. Amino Acids 2017; 50:279-291. [DOI: 10.1007/s00726-017-2514-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Accepted: 11/21/2017] [Indexed: 11/25/2022]
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24
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Dubey K, Anand BG, Shekhawat DS, Kar K. Eugenol prevents amyloid formation of proteins and inhibits amyloid-induced hemolysis. Sci Rep 2017; 7:40744. [PMID: 28145454 PMCID: PMC5286398 DOI: 10.1038/srep40744] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 12/05/2016] [Indexed: 01/01/2023] Open
Abstract
Eugenol has attracted considerable attention because of its potential for many pharmaceutical applications including anti-inflammatory, anti-tumorigenic and anti-oxidant properties. Here, we have investigated the effect of eugenol on amyloid formation of selected globular proteins. We find that both spontaneous and seed-induced aggregation processes of insulin and serum albumin (BSA) are significantly suppressed in the presence of eugenol. Isothermal titration calorimetric data predict a single binding site for eugenol-insulin complex confirming the affinity of eugenol for native soluble insulin species. We also find that eugenol suppresses amyloid-induced hemolysis. Our findings reveal the inherent ability of eugenol to stabilize native proteins and to delay the conversion of protein species of native conformation into β-sheet assembled mature fibrils, which seems to be crucial for its inhibitory effect.
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Affiliation(s)
- Kriti Dubey
- Department of Biology, Indian Institute of Technology Jodhpur, Rajasthan, 342011 India
| | - Bibin G Anand
- Department of Biology, Indian Institute of Technology Jodhpur, Rajasthan, 342011 India
| | - Dolat Singh Shekhawat
- Department of Biology, Indian Institute of Technology Jodhpur, Rajasthan, 342011 India
| | - Karunakar Kar
- Department of Biology, Indian Institute of Technology Jodhpur, Rajasthan, 342011 India.,School of Life Sciences, Jawaharlal Nehru University, New Delhi-110067, India
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25
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Precupas A, Sandu R, Leonties AR, Anghel DF, Popa VT. Complex interaction of caffeic acid with bovine serum albumin: calorimetric, spectroscopic and molecular docking evidence. NEW J CHEM 2017. [DOI: 10.1039/c7nj03410e] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Binding of caffeic acid at low concentrations to bovine serum albumin enhances the thermal stability of the protein.
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Affiliation(s)
- Aurica Precupas
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy
- 060021 – Bucharest
- Romania
| | - Romica Sandu
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy
- 060021 – Bucharest
- Romania
| | - Anca Ruxandra Leonties
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy
- 060021 – Bucharest
- Romania
| | - Dan-Florin Anghel
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy
- 060021 – Bucharest
- Romania
| | - Vlad Tudor Popa
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy
- 060021 – Bucharest
- Romania
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