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Wei Z, Zuo Y, Wu E, Huang L, Qian Y, Wang J, Chen Z. Highly biocompatible, antioxidant and antibacterial gelatin methacrylate/alginate - Tannin hydrogels for wound healing. Int J Biol Macromol 2024; 279:135417. [PMID: 39265900 DOI: 10.1016/j.ijbiomac.2024.135417] [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: 04/04/2024] [Revised: 08/29/2024] [Accepted: 09/05/2024] [Indexed: 09/14/2024]
Abstract
Gelatin (Gel) hydrogels are widely utilized in various aspects of tissue engineering, such as wound repair, due to their abundance and biocompatibility. However, their low strength and limited functionality have constrained their development and scope of application. Tannic acid (TA), a naturally occurring polyphenol found in plants and fruits, has recently garnered interest as a crosslinking, anti-inflammatory, and antioxidant agent. In this study, we fabricated novel multifunctional gelatin methacrylate/alginate-tannin (GelMA/Alg-TA) hydrogels using chemical and physical crosslinking strategies with gelatin methacrylate (GelMA), alginate (Alg), and TA as the base materials. The GelMA/Alg-TA hydrogels maintained a stable three-dimensional porous structure with appropriate water content and exhibited excellent biocompatibility. Additionally, these hydrogels demonstrated significant antioxidant and antibacterial properties and substantially promoted wound healing in a mouse model of full-thickness skin defects by modulating inflammatory responses and enhancing granulation formation. Therefore, our study offers valuable insights into the design principles of novel multifunctional GelMA/Alg-TA hydrogels, highlighting their exceptional biocompatibility, antioxidant, and antibacterial properties. GelMA/Alg-TA hydrogels are promising candidates for wound healing applications.
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Affiliation(s)
- Zongyi Wei
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Yu Zuo
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Enguang Wu
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Lianghui Huang
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Yu Qian
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Jin Wang
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
| | - Zhenhua Chen
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
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Gonciarz W, Płoszaj P, Chmiela M. Mycobacterium bovis BCG reverses deleterious effects of H. pylori components towards gastric barrier cells in vitro. Biomed Pharmacother 2024; 178:117193. [PMID: 39067167 DOI: 10.1016/j.biopha.2024.117193] [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: 05/29/2024] [Revised: 07/05/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024] Open
Abstract
Mycobacterium bovis (M. bovis) Bacillus Calmette-Guerin (BCG) strain used in immunotherapy of bladder cancer (onco-BCG) due to its acid tolerance can be a candidate for prevention or reversion of deleterious effects towards gastric cell barrier initiated by gastric pathogen Helicobacter pylori (Hp) with high resistance to commonly used antibiotics. Colonization of gastric mucosa by Hp promotes oxidative stress, apoptosis resulting in the gastric barrier damage. The aim of this study was to examine the ability of onco-BCG bacilli to control the Hp driven gastric damage using the model of Cavia porcellus primary gastric epithelial cells or fibroblasts in vitro. These cells were treated with Hp surface antigens (glycine acid extract-GE or lipopolysaccharide-LPS) alone or with onco-BCG bacilli and evaluated for cell apoptosis and proliferation in conjunction with the level of soluble lipid peroxidation marker (s4HNE). The cell migration was determined by "wound healing assay", while cytokine response of cells, including interleukin (IL)-33, IL-1β, IL-8 and tumor necrosis factor alpha (TNF-α), by the ELISA. The apoptosis of cells pulsed in vitro with Hp surface components present in GE or with LPS was reduced after exposure of cells to mycobacteria. Similarly, the cell regeneration which was diminished by Hp LPS has been improved in response to mycobacteria. This study reveals that vaccine mycobacteria may reduce gastric barrier damage induced by Hp infection.
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Affiliation(s)
- Weronika Gonciarz
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland.
| | - Patrycja Płoszaj
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Magdalena Chmiela
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
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3
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Zhang Z, Li W, Chang D, Wei Z, Wang E, Yu J, Xu Y, Que Y, Chen Y, Fan C, Ma B, Zhou Y, Huan Z, Yang C, Guo F, Chang J. A combination therapy for androgenic alopecia based on quercetin and zinc/copper dual-doped mesoporous silica nanocomposite microneedle patch. Bioact Mater 2022; 24:81-95. [PMID: 36582348 PMCID: PMC9772573 DOI: 10.1016/j.bioactmat.2022.12.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/23/2022] [Accepted: 12/08/2022] [Indexed: 12/15/2022] Open
Abstract
A nanocomposite microneedle (ZCQ/MN) patch containing copper/zinc dual-doped mesoporous silica nanoparticles loaded with quercetin (ZCQ) was developed as a combination therapy for androgenic alopecia (AGA). The degradable microneedle gradually dissolves after penetration into the skin and releases the ZCQ nanoparticles. ZCQ nanoparticles release quercetin (Qu), copper (Cu2+) and zinc ions (Zn2+) subcutaneously to synergistically promote hair follicle regeneration. The mechanism of promoting hair follicle regeneration mainly includes the regulation of the main pathophysiological phenomena of AGA such as inhibition of dihydrotestosterone, inhibition of inflammation, promotion of angiogenesis and activation of hair follicle stem cells by the combination of Cu2+ and Zn2+ ions and Qu. This study demonstrates that the systematic intervention targeting different pathophysiological links of AGA by the combination of organic drug and bioactive metal ions is an effective treatment strategy for hair loss, which provides a theoretical basis for development of biomaterial based anti-hair loss therapy.
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Affiliation(s)
- Zhaowenbin Zhang
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China,Wenzhou Institute, University of Chinese Academy of Sciences, Zhejiang, 325000, PR China,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Wenbo Li
- Department of Plastic Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, 200025, PR China
| | - Di Chang
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China,Fudan University, Shanghai, 200433, PR China
| | - Ziqin Wei
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Endian Wang
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Jing Yu
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yuze Xu
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yumei Que
- Wenzhou Institute, University of Chinese Academy of Sciences, Zhejiang, 325000, PR China
| | - Yanxin Chen
- Wenzhou Institute, University of Chinese Academy of Sciences, Zhejiang, 325000, PR China
| | - Chen Fan
- Wenzhou Institute, University of Chinese Academy of Sciences, Zhejiang, 325000, PR China
| | - Bing Ma
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yanling Zhou
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Zhiguang Huan
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Chen Yang
- Wenzhou Institute, University of Chinese Academy of Sciences, Zhejiang, 325000, PR China,Corresponding author.
| | - Feng Guo
- Department of Plastic Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, 200025, PR China,Corresponding author.
| | - Jiang Chang
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China,Wenzhou Institute, University of Chinese Academy of Sciences, Zhejiang, 325000, PR China,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China,Corresponding author. State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China.
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Yamaguchi K, Itakura M, Kitazawa R, Lim SY, Nagata K, Shibata T, Akagawa M, Uchida K. Oxidative deamination of lysine residues by polyphenols generates an equilibrium of aldehyde and 2-piperidinol products. J Biol Chem 2021; 297:101035. [PMID: 34339739 PMCID: PMC8387773 DOI: 10.1016/j.jbc.2021.101035] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 12/04/2022] Open
Abstract
Polyphenols, especially catechol-type polyphenols, exhibit lysyl oxidase-like activity and mediate oxidative deamination of lysine residues in proteins. Previous studies have shown that polyphenol-mediated oxidative deamination of lysine residues can be associated with altered electrical properties of proteins and increased crossreactivity with natural immunoglobulin M antibodies. This interaction suggested that oxidized proteins could act as innate antigens and elicit an innate immune response. However, the structural basis for oxidatively deaminated lysine residues remains unclear. In the present study, to establish the chemistry of lysine oxidation, we characterized oxidation products obtained via incubation of the lysine analog N-biotinyl-5-aminopentylamine with eggshell membranes containing lysyl oxidase and identified a unique six-membered ring 2-piperidinol derivative equilibrated with a ring-open product (aldehyde) as the major product. By monitoring these aldehyde-2-piperidinol products, we evaluated the lysyl oxidase-like activity of polyphenols. We also observed that this reaction was mediated by some polyphenols, especially o-diphenolic-type polyphenols, in the presence of copper ions. Interestingly, the natural immunoglobulin M monoclonal antibody recognized these aldehyde-2-piperidinol products as an innate epitope. These findings establish the existence of a dynamic equilibrium of oxidized lysine and provide important insights into the chemopreventive function of dietary polyphenols for chronic diseases.
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Affiliation(s)
- Kosuke Yamaguchi
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masanori Itakura
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Roma Kitazawa
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Sei-Young Lim
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Koji Nagata
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Takahiro Shibata
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Mitsugu Akagawa
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Japan
| | - Koji Uchida
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan; Japan Agency for Medical Research and Development, CREST, Tokyo, Japan.
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5
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Akagawa M. Protein carbonylation: molecular mechanisms, biological implications, and analytical approaches. Free Radic Res 2021; 55:307-320. [DOI: 10.1080/10715762.2020.1851027] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mitsugu Akagawa
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Japan
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Oral Supplementation with Benzylamine Delays the Onset of Diabetes in Obese and Diabetic db-/- Mice. Nutrients 2021; 13:nu13082622. [PMID: 34444782 PMCID: PMC8401126 DOI: 10.3390/nu13082622] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/27/2021] [Accepted: 07/27/2021] [Indexed: 12/19/2022] Open
Abstract
Substrates of semicarbazide-sensitive amine oxidase (SSAO) exert insulin-like actions in adipocytes. One of them, benzylamine (Bza) exhibits antihyperglycemic properties in several rodent models of diabetes. To further study the antidiabetic potential of this naturally occurring amine, a model of severe type 2 diabetes, the obese db-/- mouse, was subjected to oral Bza administration. To this end, db-/- mice and their lean littermates were treated at 4 weeks of age by adding 0.5% Bza in drinking water for seven weeks. Body mass, fat content, blood glucose and urinary glucose output were followed while adipocyte insulin responsiveness and gene expression were checked at the end of supplementation, together with aorta nitrites. Bza supplementation delayed the appearance of hyperglycemia, abolished polydypsia and glycosuria in obese/diabetic mice without any detectable effect in lean control, except for a reduction in food intake observed in both genotypes. The improvement of glucose homeostasis was observed in db-/- mice at the expense of increased fat deposition, especially in the subcutaneous white adipose tissue (SCWAT), without sign of worsened inflammation or insulin responsiveness and with lowered circulating triglycerides and uric acid, while NO bioavailability was increased in aorta. The higher capacity of SSAO in oxidizing Bza in SCWAT, found in the obese mice, was unaltered by Bza supplementation and likely involved in the activation of glucose utilization by adipocytes. We propose that Bza oxidation in tissues, which produces hydrogen peroxide mainly in SCWAT, facilitates insulin-independent glucose utilization. Bza could be considered as a potential agent for dietary supplementation aiming at preventing diabetic complications.
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7
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The effect of polyacid on the physical and biological properties of chitosan based layer-by-layer films. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126313] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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8
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Iatridi Z, Evangelatou K, Theodorakis N, Angelopoulou A, Avgoustakis K, Tsitsilianis C. Multicompartmental Mesoporous Silica/Polymer Nanostructured Hybrids: Design Capabilities by Integrating Linear and Star-Shaped Block Copolymers. Polymers (Basel) 2019; 12:E51. [PMID: 31906238 PMCID: PMC7023666 DOI: 10.3390/polym12010051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 12/20/2019] [Accepted: 12/22/2019] [Indexed: 12/13/2022] Open
Abstract
Poly(2-vinyl pyridine)-b-poly(ethylene oxide) (P2VP-b-PEO) linear diblock copolymer and polystyrene-poly(ethylene oxide) (PS10PEO10) heteroarm star copolymer were used as building elements to prepare organic-inorganic hybrids. By using the layer-by-layer (LbL) methodology, these elements were integrated on mesoporous silica through non-covalent interactions, namely, ionic and H-bonding. For the latter, tannic acid (TA) was used as an intermediate layer. The deposition of the various layers was monitored by thermogravimetric analysis (TGA), electrophoretic measurements, and confocal microscopy. The final silica hybrid, bearing alternating P2VP-b-PEO and PS10PEO10 star layers was capable of carrying one hydrophilic and two hydrophobic chemical species in distinct compartments. These multicompartmental organic-inorganic hybrids could be used as nanostructured carriers for pH-responsive multiple drug delivery and potential theranostic applications.
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Affiliation(s)
- Zacharoula Iatridi
- Department of Chemical Engineering, University of Patras, 26504 Patras, Greece; (Z.I.); (K.E.); (N.T.)
| | - Kyriaki Evangelatou
- Department of Chemical Engineering, University of Patras, 26504 Patras, Greece; (Z.I.); (K.E.); (N.T.)
| | - Nikolaos Theodorakis
- Department of Chemical Engineering, University of Patras, 26504 Patras, Greece; (Z.I.); (K.E.); (N.T.)
| | - Athina Angelopoulou
- Department of Pharmacy, Medical School, University of Patras, 26504 Patras, Greece; (A.A.); (K.A.)
| | - Konstantinos Avgoustakis
- Department of Pharmacy, Medical School, University of Patras, 26504 Patras, Greece; (A.A.); (K.A.)
| | - Constantinos Tsitsilianis
- Department of Chemical Engineering, University of Patras, 26504 Patras, Greece; (Z.I.); (K.E.); (N.T.)
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9
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Akbar M, Cagli E, Erel-Göktepe I. Layer-By-Layer Modified Superparamagnetic Iron Oxide Nanoparticles with Stimuli-Responsive Drug Release Properties. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201800422] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Majid Akbar
- Department of Polymer Science and Technology; Middle East Technical University; 06800 Cankaya Ankara Turkey
| | - Eda Cagli
- Department of Chemistry; Middle East Technical University; 06800 Cankaya Ankara Turkey
| | - Irem Erel-Göktepe
- Department of Polymer Science and Technology; Middle East Technical University; 06800 Cankaya Ankara Turkey
- Department of Chemistry; Middle East Technical University; 06800 Cankaya Ankara Turkey
- Center of Excellence in Biomaterials and Tissue Engineering; Middle East Technical University; 06800 Cankaya Ankara Turkey
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10
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Ok S, Altun A. Interactions of poly (vinyl alcohol) and poly (N-isopropylacrylamide) with tannic acid and pyrazole derivatives: The identification of H-bonds for revealing a “Two-Molecules” carrier system. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.09.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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11
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Reitzer F, Allais M, Ball V, Meyer F. Polyphenols at interfaces. Adv Colloid Interface Sci 2018; 257:31-41. [PMID: 29937230 DOI: 10.1016/j.cis.2018.06.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 06/03/2018] [Accepted: 06/05/2018] [Indexed: 12/18/2022]
Abstract
Polyphenols are important molecules in living organisms, particularly in plants, where they serve as protectants against predators. They are also of fundamental importance in pharmacology for their antioxidant and antibacterial activities. Since a few years polyphenols are also used in surface functionalization mimicking the tannin deposition observed when tea or red wine are in contact with the surface of cups or glasses respectively. The interaction of polyphenols with proteins to yield colloids and of polyphenol with surfaces will be reviewed in this article to provide an overview of such particles and surface functionalization methods in modern surface science. Particular emphasis will be given to biological applications of polyphenols at interfaces.
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Affiliation(s)
- François Reitzer
- Université de Strasbourg, INSERM, UMR_S 1121 Biomatériaux et bioingénierie, FMTS, 11 rue Humann, 67085 Strasbourg, Cedex, France
| | - Manon Allais
- Université de Strasbourg, INSERM, UMR_S 1121 Biomatériaux et bioingénierie, FMTS, 11 rue Humann, 67085 Strasbourg, Cedex, France
| | - Vincent Ball
- Université de Strasbourg, INSERM, UMR_S 1121 Biomatériaux et bioingénierie, FMTS, 11 rue Humann, 67085 Strasbourg, Cedex, France.
| | - Florent Meyer
- Université de Strasbourg, INSERM, UMR_S 1121 Biomatériaux et bioingénierie, FMTS, 11 rue Humann, 67085 Strasbourg, Cedex, France
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12
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Bioassay-guided isolation of triterpene from brown alga Padina boergesenii possess anti-inflammatory and anti-angiogenic potential with kinetic inhibition of β-carotene linoleate system. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2018.04.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Wang C, Li Y, Ma Y, Gao Y, Dong D, Fang J, Zhang N. Thermoresponsive polymeric nanoparticles based on poly(2-oxazoline)s and tannic acid. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Chunying Wang
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province; Changchun University of Science and Technology; Changchun 130022 China
- Key Laboratory of Synthetic Rubber; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
| | - Yunhui Li
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province; Changchun University of Science and Technology; Changchun 130022 China
| | - Yuqin Ma
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province; Changchun University of Science and Technology; Changchun 130022 China
| | - Ying Gao
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province; Changchun University of Science and Technology; Changchun 130022 China
| | - Dewen Dong
- Key Laboratory of Synthetic Rubber; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
- Changzhou Institute of Energy Storage Materials & Devices; Changzhou 213000 China
| | - Jianyong Fang
- Key Laboratory of Synthetic Rubber; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
- Changzhou Institute of Energy Storage Materials & Devices; Changzhou 213000 China
| | - Ning Zhang
- Key Laboratory of Synthetic Rubber; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
- Changzhou Institute of Energy Storage Materials & Devices; Changzhou 213000 China
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14
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Bakhshandeh S, Amin Yavari S. Electrophoretic deposition: a versatile tool against biomaterial associated infections. J Mater Chem B 2018; 6:1128-1148. [PMID: 32254176 DOI: 10.1039/c7tb02445b] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Biomaterial-associated infections (BAIs) are today considered as one of the most withering complications of orthopedic implant surgery. Even though BAIs occur relatively infrequently in primary joint replacement surgeries (incidence rates around 1-2%), revision arthroplasties carry up to 40% risk of infection recurrence, with devastating consequences for the patient and significant associated cost. Once the responsible pathogens, mainly bacteria, attach to the surface of the biomaterial, they start creating layers of extracellular matrix with complex architectures, called biofilms. These last mentioned, encapsulate and protect bacteria by hindering the immune response and impeding antibiotics from reaching the pathogens. To prevent such an outcome, the surface of the biomaterials, in particular implants, can be modified in order to play the role of inherent drug delivery devices or as substrates for antibacterial/multifunctional coating deposition. This paper presents an overview of novel electrochemically-triggered deposition strategies, with a focus on electrophoretic deposition (EPD), a versatile and cost-effective technique for organic and inorganic material deposition. Other than being a simple deposition tool, EPD has been recently employed to create novel micro/nanostructured surfaces for multi-purpose antibacterial approaches, presented in detail in this review. In addition, a thorough comparison and assessment of the latest antibacterial and multifunctional compounds deposited by means of EPD have been reported, followed by a critical reflection on current and future prospects of the topic. The relative simplicity of EPD's application, has, by some means, undermined the fundamental requirement of rationality of multifunctional coating design. The demanding practical needs for a successful clinical translation in the growing fields of tissue engineering and antibacterial/multifunctional implant coatings, calls for a more systematic in vitro experimental design rationale, in order to make amends for the scarcity of significant in vivo and clinical studies.
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Affiliation(s)
- Sadra Bakhshandeh
- Department of Orthopedics, University Medical Centre Utrecht, Utrecht, The Netherlands.
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15
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Multilayered films made from tannic acid and alkaline phosphatase with enzymatic activity and electrochemical behavior. J Colloid Interface Sci 2018; 512:722-729. [DOI: 10.1016/j.jcis.2017.10.101] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 10/26/2017] [Accepted: 10/26/2017] [Indexed: 10/18/2022]
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16
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Haktaniyan M, Atilla S, Cagli E, Erel-Goktepe I. pH- and temperature-induced release of doxorubicin from multilayers of poly(2-isopropyl-2-oxazoline) and tannic acid. POLYM INT 2017. [DOI: 10.1002/pi.5458] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Meltem Haktaniyan
- Department of Chemistry; Middle East Technical University; Cankaya Ankara Turkey
| | - Suleyman Atilla
- Department of Chemistry; Middle East Technical University; Cankaya Ankara Turkey
| | - Eda Cagli
- Department of Chemistry; Middle East Technical University; Cankaya Ankara Turkey
| | - Irem Erel-Goktepe
- Department of Chemistry; Middle East Technical University; Cankaya Ankara Turkey
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17
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Furuhashi M, Hatasa Y, Kawamura S, Shibata T, Akagawa M, Uchida K. Identification of Polyphenol-Specific Innate Epitopes That Originated from a Resveratrol Analogue. Biochemistry 2017; 56:4701-4712. [PMID: 28796948 DOI: 10.1021/acs.biochem.7b00409] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Polyphenols have received a significant amount of attention in disease prevention because of their unique chemical and biological properties. However, the underlying molecular mechanism for their beneficial effects remains unclear. We have now identified a polyphenol as a source of innate epitopes detected in natural IgM and established a unique gain-of-function mechanism in the formation of innate epitopes by polyphenol via the polymerization of proteins. Upon incubation with bovine serum albumin (BSA) under physiological conditions, several polyphenols converted the protein into the innate epitopes recognized by the IgM Abs. Interestingly, piceatannol, a naturally occurring hydroxylated analogue of a red wine polyphenol, resveratrol, mediated the modification of BSA, whose polymerized form was specifically recognized by the IgMs. The piceatannol-mediated polymerization of the protein was associated with the formation of a lysine-derived cross-link, dehydrolysinonorleucine. In addition, an oxidatively deaminated product, α-aminoadipic semialdehyde, was detected as a potential precursor for the cross-link in the piceatannol-treated BSA, suggesting that the polymerization of the protein might be mediated by the oxidation of a lysine residue by piceatannol followed by a Schiff base reaction with the ε-amino group of an unoxidized lysine residue. The results of this study established a novel mechanism for the formation of innate epitopes by small dietary molecules and support the notion that many of the beneficial effects of polyphenols could be attributed, at least in part, to their lysyl oxidase-like activity. They also suggest that resveratrol may have beneficial effects on human health because of its conversion to piceatannol.
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Affiliation(s)
- Mai Furuhashi
- Graduate School of Bioagricultural Sciences, Nagoya University , Nagoya 464-8601, Japan
| | - Yukinori Hatasa
- Graduate School of Bioagricultural Sciences, Nagoya University , Nagoya 464-8601, Japan
| | - Sae Kawamura
- Graduate School of Bioagricultural Sciences, Nagoya University , Nagoya 464-8601, Japan
| | - Takahiro Shibata
- Graduate School of Bioagricultural Sciences, Nagoya University , Nagoya 464-8601, Japan.,PRESTO, Japan Science and Technology Agency , Kawaguchi, Saitama 332-0012, Japan
| | - Mitsugu Akagawa
- Department of Biological Chemistry, Division of Applied Life Science, Graduate School of Life and Environmental Sciences, Osaka Prefecture University , Sakai 599-8531, Japan
| | - Koji Uchida
- Graduate School of Bioagricultural Sciences, Nagoya University , Nagoya 464-8601, Japan.,Laboratory of Food Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo , Tokyo 113-8657, Japan
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Wang X, Cao W, Xiang Q, Jin F, Peng X, Li Q, Jiang M, Hu B, Xing X. Silver nanoparticle and lysozyme/tannic acid layer-by-layer assembly antimicrobial multilayer on magnetic nanoparticle by an eco-friendly route. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:886-896. [DOI: 10.1016/j.msec.2017.03.192] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 01/19/2017] [Accepted: 03/21/2017] [Indexed: 02/07/2023]
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19
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Rysman T, Utrera M, Morcuende D, Van Royen G, Van Weyenberg S, De Smet S, Estévez M. Apple phenolics as inhibitors of the carbonylation pathway during in vitro metal-catalyzed oxidation of myofibrillar proteins. Food Chem 2016; 211:784-90. [PMID: 27283697 DOI: 10.1016/j.foodchem.2016.05.126] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 05/18/2016] [Accepted: 05/19/2016] [Indexed: 12/27/2022]
Abstract
The effect of apple phenolics on the oxidative damage caused to myofibrillar proteins by an in vitro metal-catalyzed oxidation system was investigated. Three pure phenolic compounds (chlorogenic acid, (-)-epicatechin and phloridzin) and an apple peel extract were added to myofibrillar proteins in three concentrations (50, 100 and 200μM), and a blank treatment was included as a control. All suspensions were subjected to Fe(3+)/H2O2 oxidation at 37°C during 10days, and protein oxidation was evaluated as carbonylation (α-amino adipic and γ-glutamic semialdehydes) and Schiff base cross-links. Significant inhibition by apple phenolics was found as compared to the control treatment, with (-)-epicatechin being the most efficient antioxidant and phloridzin showing the weakest antioxidant effect. The higher concentrations of apple extract showed effective antioxidant activity against protein oxidation in myofibrillar proteins, emphasizing the potential of apple by-products as natural inhibitors of protein oxidation in meat products.
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Affiliation(s)
- Tine Rysman
- Technology and Food Science Unit, Institute for Agricultural and Fisheries Research, Brusselsesteenweg 370, 9090 Melle, Belgium.
| | - Mariana Utrera
- IPROCAR Research Institute, University of Extremadura, Avda. Universidad, s/n, 10003 Cáceres, Spain.
| | - David Morcuende
- IPROCAR Research Institute, University of Extremadura, Avda. Universidad, s/n, 10003 Cáceres, Spain.
| | - Geert Van Royen
- Technology and Food Science Unit, Institute for Agricultural and Fisheries Research, Brusselsesteenweg 370, 9090 Melle, Belgium.
| | - Stephanie Van Weyenberg
- Technology and Food Science Unit, Institute for Agricultural and Fisheries Research, Brusselsesteenweg 370, 9090 Melle, Belgium.
| | - Stefaan De Smet
- Laboratory for Animal Nutrition and Animal Product Quality, Faculty of Bioscience Engineering, Ghent University, Proefhoevestraat 10, 9090 Melle, Belgium.
| | - Mario Estévez
- IPROCAR Research Institute, University of Extremadura, Avda. Universidad, s/n, 10003 Cáceres, Spain.
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20
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Hatasa Y, Chikazawa M, Furuhashi M, Nakashima F, Shibata T, Kondo T, Akagawa M, Hamagami H, Tanaka H, Tachibana H, Uchida K. Oxidative Deamination of Serum Albumins by (-)-Epigallocatechin-3-O-Gallate: A Potential Mechanism for the Formation of Innate Antigens by Antioxidants. PLoS One 2016; 11:e0153002. [PMID: 27046229 PMCID: PMC4821561 DOI: 10.1371/journal.pone.0153002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 03/22/2016] [Indexed: 11/18/2022] Open
Abstract
(-)-Epigallocatechin-3-O-gallate (EGCG), the most abundant polyphenol in green tea, mediates the oxidative modification of proteins, generating protein carbonyls. However, the underlying molecular mechanism remains unclear. Here we analyzed the EGCG-derived intermediates generated upon incubation with the human serum albumin (HSA) and established that EGCG selectively oxidized the lysine residues via its oxidative deamination activity. In addition, we characterized the EGCG-oxidized proteins and discovered that the EGCG could be an endogenous source of the electrically-transformed proteins that could be recognized by the natural antibodies. When HSA was incubated with EGCG in the phosphate-buffered saline (pH 7.4) at 37°C, the protein carbonylation was associated with the formation of EGCG-derived products, such as the protein-bound EGCG, oxidized EGCG, and aminated EGCG. The aminated EGCG was also detected in the sera from the mice treated with EGCG in vivo. EGCG selectively oxidized lysine residues at the EGCG-binding domains in HSA to generate an oxidatively deaminated product, aminoadipic semialdehyde. In addition, EGCG treatment results in the increased negative charge of the protein due to the oxidative deamination of the lysine residues. More strikingly, the formation of protein carbonyls by EGCG markedly increased its cross-reactivity with the natural IgM antibodies. These findings suggest that many of the beneficial effects of EGCG may be partly attributed to its oxidative deamination activity, generating the oxidized proteins as a target of natural antibodies.
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Affiliation(s)
- Yukinori Hatasa
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Miho Chikazawa
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Mai Furuhashi
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Fumie Nakashima
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Takahiro Shibata
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
- PRESTO, Japan Science and Technology Agency, Saitama, Japan
| | - Tatsuhiko Kondo
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Mitsugu Akagawa
- Department of Biological Chemistry, Division of Applied Life Science, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Japan
| | - Hiroki Hamagami
- Graduate School of Science and Engineering, Tokyo Institute of Technology, Tokyo, Japan
| | - Hiroshi Tanaka
- Graduate School of Science and Engineering, Tokyo Institute of Technology, Tokyo, Japan
| | | | - Koji Uchida
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
- * E-mail:
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21
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Zhao YN, Gu J, Jia S, Guan Y, Zhang Y. Zero-order release of polyphenolic drugs from dynamic, hydrogen-bonded LBL films. SOFT MATTER 2016; 12:1085-1092. [PMID: 26577014 DOI: 10.1039/c5sm02186c] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Drug carriers capable of releasing drugs at a constant rate, or following zero-order kinetics, can lead to the best control of plasma drug concentration. Here we demonstrated that zero-order release of polyphenolic drugs, including tannic acid, epigallocatechin gallate, proanthocyanidins, and theaflavin-3'-gallate, could be achieved using hydrogen-bonded layer-by-layer films as the drug carrier. The films were fabricated using the polyphenolic drugs as hydrogen donors and polyethylene glycol (PEG) as the hydrogen acceptor. Because the drugs and PEG are bonded with reversible, dynamic hydrogen bonds, the films disintegrate gradually in aqueous solutions, and thus release the drugs into the media. Furthermore, because the PEG polymers have a narrow molecular weight distribution, the films disintegrate and release the polyphenolic drugs at a constant rate. Besides allowing for zero-order release, the drug carrier developed here also provides various ways to tune the drug release rate. The drug release rate increases with decreasing molecular weight of PEG. More importantly, the release rate could be tuned using external stimuli. Increasing the pH or temperature results in accelerated drug release, while the addition of salt retards the drug release.
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Affiliation(s)
- Ya-Nan Zhao
- State Key Laboratory of Medicinal Chemical Biology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China.
| | - Jianjun Gu
- State Key Laboratory of Medicinal Chemical Biology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China.
| | - Siyu Jia
- State Key Laboratory of Medicinal Chemical Biology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China.
| | - Ying Guan
- State Key Laboratory of Medicinal Chemical Biology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China.
| | - Yongjun Zhang
- State Key Laboratory of Medicinal Chemical Biology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China.
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22
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Liang H, Pei Y, Li J, Xiong W, He Y, Liu S, Li Y, Li B. pH-Degradable antioxidant nanoparticles based on hydrogen-bonded tannic acid assembly. RSC Adv 2016. [DOI: 10.1039/c6ra02527g] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Hydrogen-bonded polyphenol-based assemblies have attracted increasing interest for biomedical applications.
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Affiliation(s)
- Hongshan Liang
- College of Food Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
| | - Yaqiong Pei
- College of Food Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
| | - Jing Li
- College of Food Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
| | - Wenfei Xiong
- College of Food Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
| | - Yun He
- College of Food Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
| | - Shilin Liu
- College of Food Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
| | - Yan Li
- College of Food Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
| | - Bin Li
- College of Food Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
- Hubei Collaborative Innovation Centre for Industrial Fermentation
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23
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24
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Jongberg S, Utrera M, Morcuende D, Lund MN, Skibsted LH, Estévez M. Influence of the Oxidation States of 4-Methylcatechol and Catechin on the Oxidative Stability of β-Lactoglobulin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:8501-8509. [PMID: 26348706 DOI: 10.1021/acs.jafc.5b02551] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Chemical interactions between proteins and phenols affect the overall oxidative stability of a given biological system. To investigate the effect of protein-phenol adduct formation on the oxidative stability of β-lactoglobulin (β-LG), the protein was left to react with an equimolar concentration of 4-methylcatechol (4MC), catechin (Cat), or their respective quinone forms, 4-methylbenzoquinone (4MBQ) and catechin-quinone (CatQ), and subsequently subjected to metal-catalyzed oxidation by Fe(II)/H2O2 for 20 days at 37 °C. The reaction with 4MBQ resulted in 60% thiol loss and 22% loss of amino groups, whereas the addition of 4MC resulted in 12% thiol loss. The reaction with Cat or CatQ resulted in no apparent modification of β-LG. The oxidative stability of β-LG after reaction with each of 4MC, 4MBQ, Cat, or CatQ was impaired. Especially 4MC and 4MBQ were found to be pro-oxidative toward α-aminoadipic semialdehyde and γ-glutamic semialdehyde formation as well as the generation of fluorescent Schiff base products. The changes observed were ascribed to the redirection of oxidation as a result of the blocking of thiol groups but also to the oxidative deamination pathway, accelerating the production of semialdehydes and subsequently Schiff base structures.
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Affiliation(s)
- Sisse Jongberg
- Department of Food Science, Faculty of Science, University of Copenhagen , Rolighedsvej 30, 1958 Frederiksberg, Denmark
| | - Mariana Utrera
- IPROCAR Research Institute, TECAL Research Group, University of Extremadura , 10003 Cáceres, Spain
| | - David Morcuende
- IPROCAR Research Institute, TECAL Research Group, University of Extremadura , 10003 Cáceres, Spain
| | - Marianne N Lund
- Department of Food Science, Faculty of Science, University of Copenhagen , Rolighedsvej 30, 1958 Frederiksberg, Denmark
| | - Leif H Skibsted
- Department of Food Science, Faculty of Science, University of Copenhagen , Rolighedsvej 30, 1958 Frederiksberg, Denmark
| | - Mario Estévez
- IPROCAR Research Institute, TECAL Research Group, University of Extremadura , 10003 Cáceres, Spain
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25
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Ringwald C, Ball V. Layer-by-layer deposition of tannic acid and Fe 3+ cations is of electrostatic nature but almost ionic strength independent at pH 5. J Colloid Interface Sci 2015; 450:119-126. [DOI: 10.1016/j.jcis.2015.03.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 03/05/2015] [Accepted: 03/06/2015] [Indexed: 11/30/2022]
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26
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Bag E, Begik O, Yusan P, Erel-Goktepe I. Hydrogen-Bonded Multilayers With Controllable pH-Induced Disintegration Kinetics for Controlled Release Applications From Surfaces. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2015. [DOI: 10.1080/10601325.2015.1007274] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Mangione MR, Palumbo Piccionello A, Marino C, Ortore MG, Picone P, Vilasi S, Di Carlo M, Buscemi S, Bulone D, San Biagio PL. Photo-inhibition of Aβ fibrillation mediated by a newly designed fluorinated oxadiazole. RSC Adv 2015. [DOI: 10.1039/c4ra13556c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The interaction of oxadiazole3photo-stimulated with Aβ1–40induces a structural modification responsible for fibrillogenesis inhibition.
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Affiliation(s)
- M. R. Mangione
- Institute of Biophysics
- National Research Council
- Palermo
- Italy
| | - A. Palumbo Piccionello
- Institute of Biophysics
- National Research Council
- Palermo
- Italy
- Department of Biological Chemical and Pharmaceutical Sciences and Technologies
| | - C. Marino
- Institute of Biophysics
- National Research Council
- Palermo
- Italy
- Department of Neurology
| | - M. G. Ortore
- Department of Life and Environmental Sciences
- National Interuniversity Consortium for the Physical Sciences of Matter
- Marche Polytechnic University
- Ancona
- Italy
| | - P. Picone
- Institute of Biomedicine and Molecular Immunology
- National Research Council
- Palermo
- Italy
| | - S. Vilasi
- Institute of Biophysics
- National Research Council
- Palermo
- Italy
| | - M. Di Carlo
- Institute of Biomedicine and Molecular Immunology
- National Research Council
- Palermo
- Italy
| | - S. Buscemi
- Institute of Biophysics
- National Research Council
- Palermo
- Italy
- Department of Biological Chemical and Pharmaceutical Sciences and Technologies
| | - D. Bulone
- Institute of Biophysics
- National Research Council
- Palermo
- Italy
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28
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Role of Phenolics Extracting from Rosa canina L. on Meat Protein Oxidation During Frozen Storage and Beef Patties Processing. FOOD BIOPROCESS TECH 2014. [DOI: 10.1007/s11947-014-1450-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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29
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Zhuk I, Jariwala F, Attygalle AB, Wu Y, Libera MR, Sukhishvili SA. Self-defensive layer-by-layer films with bacteria-triggered antibiotic release. ACS NANO 2014; 8:7733-45. [PMID: 25093948 DOI: 10.1021/nn500674g] [Citation(s) in RCA: 174] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We report on highly efficient, bioresponsive, controlled-release antibacterial coatings constructed by direct assembly of tannic acid (TA) with one of several cationic antibiotics (tobromycin, gentamicin, and polymyxin B) using the layer-by-layer (LbL) technique. These films exhibit a distinct “self-defense” behavior triggered by acidification of the immediate environment by pathogenic bacteria, such as Staphylococcus epidermidis (S. epidermidis) or Escherichia coli (E. coli). Films assembled using spin-assisted and dip-assisted techniques show drastically different morphology, thickness and pH-/bacteria-triggered antibiotic release characteristics. While dip-deposited films have rough surfaces with island-like, granular structures regardless of the film thickness, spin-assisted LbL assemblies demonstrate a transition from linear deposition of uniform 2D films to a highly developed 3D morphology for films thicker than ∼45 nm. Ellipsometry, UV–vis and mass spectrometry confirm that all coatings do not release antibiotics in phosphate buffered saline at pH 7.4 for as long as one month in the absence of bacteria and therefore do not contribute to the development of antibiotic resistance. These films do, however, release antibiotics upon pH lowering. The rate of triggered release can be controlled through the choice of assembled antibiotic and the assembly technique (spin- vs dip-deposition) and by the spinning rate used during deposition, which all affect the strength of TA–antibiotic binding. TA/antibiotic coatings as thin as 40 nm strongly inhibit S. epidermidis and E. coli bacterial growth both at surfaces and in surrounding medium, but support adhesion and proliferation of murine osteoblast cells. These coatings thus present a promising way to incorporate antibacterial agents at surfaces to prevent bacterial colonization of implanted biomedical devices.
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Sri Harsha PSC, Lavelli V, Scarafoni A. Protective ability of phenolics from white grape vinification by-products against structural damage of bovine serum albumin induced by glycation. Food Chem 2014; 156:220-6. [PMID: 24629961 DOI: 10.1016/j.foodchem.2014.01.104] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 12/17/2013] [Accepted: 01/27/2014] [Indexed: 10/25/2022]
Abstract
Grape skins recovered from white grape vinification processes were studied as possible anti-glycation agents. Total phenolics were characterised by the Folin Ciocalteu assay, proanthocyanidins by depolymerisation with n-butanol/HCl, flavonols by HPLC-DAD, reducing capacity by ferric ion reducing antioxidant power assay (FRAP) and anti-glycation activity by a bovine serum albumin (BSA)/fructose model system. Structural modifications of BSA were investigated by 2D isoelectric focusing sodium dodecyl sulfate polyacrylamide gel electrophoresis (IEF/SDS-PAGE) and fluorescence measurements. Both pI and Mr. of BSA were modified upon glycation reaction. These changes attributable to the involvement of free amino groups in Maillard-type reactions were inhibited by the white grape skin extracts. The anti-glycation activity ranged between 250 and 711mmol aminoguanidine Eq/kg. These results raise the interest in the potential health benefits of by-products of white grape vinification that could have a secondary use as an ingredient for new functional foods targeting wellbeing of diabetic and elderly people.
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Affiliation(s)
- P S C Sri Harsha
- DeFENS, Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, via Celoria 2, 20133 Milano, Italy
| | - V Lavelli
- DeFENS, Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, via Celoria 2, 20133 Milano, Italy.
| | - A Scarafoni
- DeFENS, Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, via Celoria 2, 20133 Milano, Italy
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31
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Utrera M, Estévez M. Impact of trolox, quercetin, genistein and gallic acid on the oxidative damage to myofibrillar proteins: The carbonylation pathway. Food Chem 2013; 141:4000-9. [DOI: 10.1016/j.foodchem.2013.06.107] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 06/17/2013] [Accepted: 06/25/2013] [Indexed: 01/02/2023]
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32
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Epicatechin and epigallocatechin gallate inhibit formation of intermediary radicals during heating of lysine and glucose. Food Chem 2013; 146:48-55. [PMID: 24176312 DOI: 10.1016/j.foodchem.2013.09.032] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 08/22/2013] [Accepted: 09/04/2013] [Indexed: 12/12/2022]
Abstract
High concentrations of the tea catechins epicatechin (EC) or epigallocatechin gallate (EGCG) inhibited formation of highly reactive intermediary radicals appearing during the Maillard reactions (MR), that take place during heating glucose and lysine at 70°C in EtOH/HEPES buffer at pH 7.0 and pH 8.0. Radicals were trapped by ethanol, which subsequently were converted into spin adducts of the spin trap α-(4-pyridyl N-oxide)-N-tert-butylnitrone (POBN). EGCG was found to be more efficient than EC as inhibitor of intermediary radicals during the MR. Based on UV/Vis-spectroscopy, measurement of oxygen consumption and LC-MS detection of intermediates, it is suggested that the quinone form of autoxidised EC reacts with lysine through either a Michael type addition or a "Strecker like" reaction and thereby influences the formation of intermediary MR products as well as radicals.
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33
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Zhou L, Chen M, Tian L, Guan Y, Zhang Y. Release of polyphenolic drugs from dynamically bonded layer-by-layer films. ACS APPLIED MATERIALS & INTERFACES 2013; 5:3541-3548. [PMID: 23547529 DOI: 10.1021/am4008787] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Layer-by-layer (LbL) assembled films have been exploited for surface-mediated drug delivery. The drugs loaded in the films were usually released via diffusion or the degradation of one of the film components. Here we demonstrate that drug release can also be achieved by exploiting the dynamic nature of hydrogen-bonded LbL films. The films were fabricated from tannic acid (TA), a model polyphenolic drug, and poly(vinyl pyrrolidone) (PVPON). The driving force for the film buildup is the hydrogen bonding between the two components, which was confirmed by Fourier transform infrared (FTIR) spectra. The film growth is linear, and the growth rate of the film decreases with increasing assembly temperature. Because of the reversible/dynamic nature of hydrogen bonding, when soaked in aqueous solutions, the PVPON/TA films disassemble gradually and thus release TA to the media. The release rate of TA increases with increasing pH and temperature but decreases with increasing ionic strength. Scanning electron microscopy (SEM) studies on the surface morphology of the film during TA release reveal that the film surface becomes smoother and then rougher again because of the dewetting of the film. The released TA can scavenge ABTS(+•) cation radicals, indicating it retains its antioxidant activity, a major biological activity of polyphenols.
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Affiliation(s)
- Lin Zhou
- State Key Laboratory of Medicinal Chemical Biology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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34
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Gomez-Zorita S, Tréguer K, Mercader J, Carpéné C. Resveratrol directly affects in vitro lipolysis and glucose transport in human fat cells. J Physiol Biochem 2013; 69:585-93. [PMID: 23315205 DOI: 10.1007/s13105-012-0229-0] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 12/21/2012] [Indexed: 02/07/2023]
Abstract
Resveratrol is a naturally occurring polyphenol found in many dietary sources and red wine. Recognized as a cancer chemoprevention agent, an anti-inflammatory factor and an antioxidant molecule, resveratrol has been proposed as a potential anti-obesity compound and to be beneficial in diabetes. Most of the studies demonstrating the anti-adipogenic action of resveratrol were performed as long-term treatments on cultured preadipocytes. The aim of this study was to analyse the acute effects of resveratrol on glucose uptake and lipolysis in human mature adipocytes. Samples of subcutaneous abdominal adipose tissue were obtained from overweight humans and immediately digested by liberase. Fat cells were incubated (from 45 min to 4 h) with resveratrol 1 μM-1 mM. Then, glycerol release or hexose uptake was determined. Regarding lipolysis, the significant effects of resveratrol were found at 100 μM, consisting in a facilitation of isoprenaline stimulation and an impairment of insulin antilipolytic action. At 1 and 10 μM, resveratrol only tended to limit glucose uptake. Resveratrol 100 μM did not change basal glucose uptake but impaired its activation by insulin or by benzylamine. This inhibition was not found with other antioxidants. Such impairment of glucose uptake activation in fat cells may led to a reduced availability of glycerol phosphate and then to a decreased triacylglycerol assembly. Therefore, resveratrol increased triacylglycerol breakdown triggered by β-adrenergic activation and impaired lipogenesis. Consequently, our data indicate that resveratrol can be considered as limiting fat accumulation in human fat cells and further support its use for the mitigation of obesity.
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Sgarbossa A, Monti S, Lenci F, Bramanti E, Bizzarri R, Barone V. The effects of ferulic acid on β-amyloid fibrillar structures investigated through experimental and computational techniques. Biochim Biophys Acta Gen Subj 2013; 1830:2924-37. [PMID: 23291428 DOI: 10.1016/j.bbagen.2012.12.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2012] [Revised: 11/29/2012] [Accepted: 12/21/2012] [Indexed: 01/01/2023]
Abstract
BACKGROUND Current research has indicated that small natural compounds could interfere with β-amyloid fibril growth and have the ability to disassemble preformed folded structures. Ferulic acid (FA), which possesses both hydrophilic and hydrophobic moieties and binds to peptides/proteins, is a potential candidate against amyloidogenesis. The molecular mechanisms connected to this action have not been elucidated in detail yet. METHODS Here the effects of FA on preformed fibrils are investigated by means of a concerted experimental-computational approach. Spectroscopic techniques, such as FTIR, fluorescence, size exclusion chromatography and confocal microscopy in combination with molecular dynamics simulations are used to identify those features which play a key role in the destabilization of the aggregates. RESULTS Experimental findings highlight that FA has disruptive effects on the fibrils. The computational analysis suggests that dissociation of peptides from the amyloid superstructures could take place along the fibril axis and be primarily determined by the cooperative rupture of the backbone hydrogen bonds and of the Asp-Lys salt bridges. CONCLUSION FA clusters could induce a sort of stabilization and tightening of the fibril structure in the short term and its disruption in the long term, inhibiting further fibril re-assembly through FA screening effects. GENERAL SIGNIFICANCE The combination of experimental and computational techniques could be successfully used to identify the disrupting action of FA on preformed Aβ fibrils in water solution.
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Affiliation(s)
- Antonella Sgarbossa
- Biophysics Institute, National Research Council, Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa, Italy
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Cao Y, He W. Water-soluble antioxidant derivative poly(triethylene glycol methyl acrylate-co-α-tocopheryl acrylate) as a potential prodrug to enable localized neuroprotection. Acta Biomater 2013; 9:4558-68. [PMID: 22939925 DOI: 10.1016/j.actbio.2012.08.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 07/30/2012] [Accepted: 08/26/2012] [Indexed: 11/28/2022]
Abstract
Implantable microelectrode arrays (MEA) hold enormous hope for individuals with sensory or motor deficits. However, long-term function of MEA remains a critical hurdle. The objective of this study was to synthesize an antioxidant prodrug that can be delivered to the neural tissue around the implant and present a pharmacological depot to combat the injurious oxidative stress around the MEA. In this report, monomers of triethylene glycol methyl acrylate and α-tocopheryl acrylate, a synthetic derivative of the antioxidant α-tocopherol (vitamin E, Ve), were copolymerized to obtain poly(triethylene glycol methyl acrylate-co-α-tocopheryl acrylate) (PVT) with different compositions. In contrast to the poor water solubility of Ve, solubility of the PVT prodrug in water can reach as high as 3.1 mg ml(-1) (equivalent to 500 μM Ve) by tuning the copolymer composition. To demonstrate the applicability of the prodrug for MEA implants, PVT was successfully deposited on silicon substrates with poly(acrylic acid) (PAA) or tannic acid (TA) using the layer-by-layer technique mediated by hydrogen bonding. Ellipsometry and quartz crystal microbalance data showed that the multilayers of PAA/PVT were destructible at physiological pH. In contrast, multilayers of TA/PVT were stable. The PVT prodrug was non-cytotoxic toward A172 human astrocytes. Furthermore, PVT was able to protect astrocytes against oxidative stress exerted by H(2)O(2) in vitro. Using a free radical scavenging assay, the protection mechanism was attributed to the hydrolysis of the labile ester linkage and release of the active Ve.
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Affiliation(s)
- Y Cao
- Department of Materials Science and Engineering, The University of Tennessee, Knoxville, TN 37996, USA
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Utrera M, Estévez M. Analysis of tryptophan oxidation by fluorescence spectroscopy: Effect of metal-catalyzed oxidation and selected phenolic compounds. Food Chem 2012. [DOI: 10.1016/j.foodchem.2012.04.101] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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38
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Estévez M. Protein carbonyls in meat systems: A review. Meat Sci 2011; 89:259-79. [DOI: 10.1016/j.meatsci.2011.04.025] [Citation(s) in RCA: 575] [Impact Index Per Article: 44.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 04/20/2011] [Accepted: 04/25/2011] [Indexed: 01/15/2023]
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Lomas H, Johnston APR, Such GK, Zhu Z, Liang K, van Koeverden MP, Alongkornchotikul S, Caruso F. Polymersome-loaded capsules for controlled release of DNA. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:2109-2119. [PMID: 21726043 DOI: 10.1002/smll.201100744] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2011] [Revised: 05/31/2011] [Indexed: 05/31/2023]
Abstract
The formation of a novel drug-delivery carrier for the controlled release of plasmid DNA that comprises layer-by-layer polymer capsules subcompartmentalized with pH-sensitive nanometer-sized polymersomes is reported. The amphiphilic diblock copolymer poly(oligoethylene glycol methacrylate)-block-poly(2-(diisopropylamino)ethyl methacrylate) forms polymersomes at physiological pH, but transitions to unimeric polymer chains upon acidification to cellular endocytic pH. These polymersomes can thus release an encapsulated payload in response to a change in pH from physiological to endocytic conditions. Multicomponent layer-by-layer capsules are formed by exploiting the ability of tannic acid to act as an efficient hydrogen-bond donor for both the polymersomes and poly(N-vinyl pyrrolidone) at physiological pH. These capsules show release of a plasmid DNA payload encapsulated within the polymersome subcompartments in response to changes in pH between physiological and endocytic conditions.
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Affiliation(s)
- Hannah Lomas
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria 3010, Australia
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Tanaka T, Ishii T, Mizuno D, Mori T, Yamaji R, Nakamura Y, Kumazawa S, Nakayama T, Akagawa M. (-)-Epigallocatechin-3-gallate suppresses growth of AZ521 human gastric cancer cells by targeting the DEAD-box RNA helicase p68. Free Radic Biol Med 2011; 50:1324-35. [PMID: 21277973 DOI: 10.1016/j.freeradbiomed.2011.01.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Revised: 12/13/2010] [Accepted: 01/17/2011] [Indexed: 02/05/2023]
Abstract
(-)-Epigallocatechin-3-gallate (EGCG), the most abundant and biologically active polyphenol in green tea, induces apoptosis and suppresses proliferation of cancer cells by modulating multiple signal transduction pathways. However, the fundamental mechanisms responsible for these cancer-preventive effects have not been clearly elucidated. Recently, we found that EGCG can covalently bind to cysteine residues in proteins through autoxidation and subsequently modulate protein function. In this study, we demonstrate the direct binding of EGCG to cellular proteins in AZ521 human gastric cancer cells by redox-cycle staining. We comprehensively explored the binding targets of EGCG from EGCG-treated AZ521 cells by proteomics techniques combined with the boronate-affinity pull-down method. The DEAD-box RNA helicase p68, which is overexpressed in a variety of tumor cells and plays an important role in cancer development and progression, was identified as a novel EGCG-binding target. Exposure of AZ521 cells to EGCG lowered the p68 level dose dependently. The present findings show that EGCG inhibits AZ521 cell proliferation by preventing β-catenin oncogenic signaling through proteasomal degradation of p68 and provide a new perspective on the molecular mechanism of EGCG action.
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Affiliation(s)
- Tomoko Tanaka
- Department of Biological Chemistry, Division of Applied Life Science, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka-ku, Sakai 599-8531, Japan
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Costa E, Coelho M, Ilharco LM, Aguiar-Ricardo A, Hammond PT. Tannic Acid Mediated Suppression of PNIPAAm Microgels Thermoresponsive Behavior. Macromolecules 2011. [DOI: 10.1021/ma1025016] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eunice Costa
- REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Margarida Coelho
- REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Laura M. Ilharco
- Centro de Química-Física Molecular and IN-Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal
| | - Ana Aguiar-Ricardo
- REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Paula T. Hammond
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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Human serum albumin as an antioxidant in the oxidation of (-)-epigallocatechin gallate: participation of reversible covalent binding for interaction and stabilization. Biosci Biotechnol Biochem 2011; 75:100-6. [PMID: 21228463 DOI: 10.1271/bbb.100600] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Human serum albumin (HSA) contributes to the stabilization of (-)-epigallocatechin gallate (EGCg) in serum. We characterize in the present study the mechanisms for preventing EGCg oxidation by HSA. EGCg was stable in human serum or buffers with HSA, but (-)-epigallocatechin (EGC) was unstable. We show by comparing EGCg and EGC in a neutral buffer that EGCg had a higher binding affinity than EGC. This indicates that the galloyl moiety participated in the interaction of EGCg with HSA and that this interaction was of critical importance in preventing EGCg oxidation. The binding affinity of EGCg for HSA and protein carbonyl formation in HSA were enhanced in an alkaline buffer. These results suggest the reversible covalent modification of EGCg via Schiff-base formation, and that the immobilization of EGCg to HSA, through the formation of a stable complex, prevented the polymerization and decomposition of EGCg in human serum.
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Lund MN, Heinonen M, Baron CP, Estévez M. Protein oxidation in muscle foods: A review. Mol Nutr Food Res 2010; 55:83-95. [DOI: 10.1002/mnfr.201000453] [Citation(s) in RCA: 648] [Impact Index Per Article: 46.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Revised: 11/09/2010] [Accepted: 11/09/2010] [Indexed: 12/30/2022]
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Estévez M, Heinonen M. Effect of phenolic compounds on the formation of alpha-aminoadipic and gamma-glutamic semialdehydes from myofibrillar proteins oxidized by copper, iron, and myoglobin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:4448-4455. [PMID: 20196602 DOI: 10.1021/jf903757h] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The effect of selected phenolic compounds, namely, gallic acid, chlorogenic acid, genistein, catechin, cyanidin-3-glucoside and rutin, on the formation of specific protein carbonyls, alpha-aminoadipic and gamma-glutamic semialdehydes (AAS and GGS, respectively), from oxidized myofibrillar proteins, was studied in the present article. Suspensions containing myofibrillar proteins (20 mg/mL) and the aforementioned phenolic compounds (1 mM) were oxidized (37 degrees C for 20 days) in the presence of copper acetate, iron (FeCl(3)), or myoglobin (10 microM) in combination with 1 mM H(2)O(2) and analyzed for AAS and GGS using liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI-MS). Suspensions with added alpha-tocopherol (1 mM) and a control group (with no phenolic compound) were also considered. In the presence of copper, the alpha-tocopherol and most phenolic compounds significantly inhibited the formation of AAS and GGS. In iron- and myoglobin-oxidized suspensions, however, some of those phenolic compounds (i.e., chlorogenic acid and genistein) promoted the formation of the semialdehydes. Besides the influence of the oxidation promoters, the overall effect of plant phenolics on protein oxidation is likely affected by the chemical structure of the phenolics and the result of the interactions between these compounds and myofibrillar proteins. Plausible mechanisms for the antioxidant and pro-oxidant effects of plant phenolics on myofibrillar proteins are proposed in the present article. This study highlights the complexity of redox reactions between plant phenolics and oxidizing myofibrillar proteins.
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Affiliation(s)
- Mario Estévez
- Department of Food and Environmental Sciences, Food Chemistry, University of Helsinki, Helsinki, Finland.
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45
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Ganhão R, Morcuende D, Estévez M. Tryptophan depletion and formation of alpha-aminoadipic and gamma-glutamic semialdehydes in porcine burger patties with added phenolic-rich fruit extracts. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:3541-3548. [PMID: 20170109 DOI: 10.1021/jf903356m] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The effect of added fruit extracts on the oxidation of muscle proteins in porcine burger patties subjected to cooking and chill storage was studied. Extracts from arbutus berries (Arbutus unedo L., AU), common hawthorns (Crataegus monogyna L., CM), dog roses (Rosa canina L., RC), and elm-leaf blackberries (Rubus ulmifolius Schott, RU) were prepared, characterized, added to burger patties (3% of total weight), and evaluated as inhibitors of protein oxidation. Negative (no added extract, C) and positive control (added quercetin, 230 mg/kg, Q) groups were also included in the design. Protein oxidation was assessed by means of tryptophan loss using fluorescence spectroscopy (FS) and formation of the specific protein carbonyls alpha-aminoadipic (AAS) and gamma-glutamic semialdehyde (GGS) using liquid chromatography and mass spectroscopy (LC-MS). Both advanced methodologies (FS and LC-MS) were found to be reliable and specific protein oxidation measurements that allow us to gain chemical insight into protein oxidation. The mechanisms likely involved in the oxidative reactions affecting proteins during cooking and storage of burger patties are profusely discussed. Phenolic-rich fruit extracts protected tryptophan residues against oxidation and inhibited the formation of both semialdehydes in burger patties during cooking and subsequent chill storage. In general, RC, RU, and AU were the most effective inhibitors of protein oxidation, with this effect being more intense than that of pure polyphenols like quercetin. These fruit extracts could be considered functional ingredients as their antioxidant actions contribute to the enhancement of the nutritional value of the meat products.
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Affiliation(s)
- Rui Ganhão
- Food Science Department, School of Maritime Technology, Polytechnic Institute of Leiria, Peniche, Portugal
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46
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Yang ZS, Long HY, Zhang XY, Wang Y. Autooxidative Activity of Chlorogenic Acid and Damage to DNA. ELECTROANAL 2008. [DOI: 10.1002/elan.200804271] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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47
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Erel-Unal I, Sukhishvili SA. Hydrogen-Bonded Multilayers of a Neutral Polymer and a Polyphenol. Macromolecules 2008. [DOI: 10.1021/ma800186q] [Citation(s) in RCA: 252] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Irem Erel-Unal
- Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030
| | - Svetlana A. Sukhishvili
- Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030
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48
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Eilstein J, Giménez-Arnau E, Duché D, Rousset F, Lepoittevin JP. Mechanistic studies on the lysine-induced N-formylation of 2,5-dimethyl-p-benzoquinonediimine. Chem Res Toxicol 2007; 20:1155-61. [PMID: 17630706 DOI: 10.1021/tx700040s] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
2,5-Dimethyl- p-benzoquinonediimine was used as a model to study the reactivity of p-benzoquinonediimines, the first oxidation intermediates of allergenic p-amino aromatic compounds, toward lysine, as it has been suggested that this amino acid could play a key role in the induction mechanism of allergic contact dermatitis for a number of chemicals. The use of 6-[ (13)C]lysine and Nalpha-acetyl-6-[ (13)C]lysine, in association with (13)C NMR and HPLC in tandem with mass spectrometry techniques, allowed the identification of 4-amino-2,5-dimethylformanilide, 4-amino-2,5-dimethyl[ (13)C]formanilide, and the derivative containing the amino acid covalently bound at the para position. While enzymatic N-acetylation of p-phenylenediamine (PPD) has been described in the literature, in human skin for example, to our knowledge this was the first time that N-formylation of a PPD derivative induced by the reaction with an amino acid such as lysine was observed in solution, together with the formation of an adduct with the amino acid. To afford an explanation for the lysine-induced N-formylation,we undertook mechanistic studies, and they showed that 2,5-dimethyl- p-benzoquinonediimine was involved in an oxido reduction process that is capable of deaminating the alpha-NH 2 group, even when N-acetylated, and the epsilon-NH 2 groups of lysine in an oxidative way, forming the real reactive intermediates for N-formylation. This initially unexpected behavior should be considered when investigating the reactivity of such compounds with lysine-containing peptides or proteins in the context of hapten-protein binding studies.
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Affiliation(s)
- Joan Eilstein
- Institut de Chimie de Strasbourg, Université Louis Pasteur (CNRS-ULP), Laboratoire de Dermatochimie, Clinique Dermatologique CHU, 67091 Strasbourg, France
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Nakagawa K, Kaku M, Abukawa T, Aratani K, Yamaguchi M, Uesato S. Copper(II) Ions Convert Catechins from Antioxidants to Prooxidants in Protein Carbonyl Formation. ACTA ACUST UNITED AC 2007. [DOI: 10.1248/jhs.53.591] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Kazuo Nakagawa
- Department of Food and Nutrition, Faculty of Home Economics, Kyoto Women's University
| | - Maiko Kaku
- Department of Food and Nutrition, Faculty of Home Economics, Kyoto Women's University
| | - Tomomi Abukawa
- Department of Food and Nutrition, Faculty of Home Economics, Kyoto Women's University
| | - Kanako Aratani
- Department of Food and Nutrition, Faculty of Home Economics, Kyoto Women's University
| | - Mariko Yamaguchi
- Department of Food and Nutrition, Faculty of Home Economics, Kyoto Women's University
| | - Shinichi Uesato
- Department of Biotechnology, Faculty of Engineering, Kansai University
- High Technology Research Center, Kansai University
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Gómez D, Lucas-Elío P, Sanchez-Amat A, Solano F. A novel type of lysine oxidase: L-lysine-epsilon-oxidase. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2006; 1764:1577-85. [PMID: 17030025 DOI: 10.1016/j.bbapap.2006.08.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2006] [Revised: 08/16/2006] [Accepted: 08/16/2006] [Indexed: 10/24/2022]
Abstract
The melanogenic marine bacterium M. mediterranea synthesizes marinocine, a protein with antibacterial activity. We cloned the gene coding for this protein and named it lodA [P. Lucas-Elío, P. Hernández, A. Sanchez-Amat, F. Solano, Purification and partial characterization of marinocine, a new broad-spectrum antibacterial protein produced by Marinomonas mediterranea. Biochim. Biophys. Acta 1721 (2005) 193-203; P. Lucas-Elío, D. Gómez, F. Solano, A. Sanchez-Amat, The antimicrobial activity of marinocine, synthesized by M. mediterranea, is due to the hydrogen peroxide generated by its lysine oxidase activity. J. Bacteriol. 188 (2006) 2493-2501]. Now, we show that this protein is a new type of lysine oxidase which catalyzes the oxidative deamination of free L-lysine into 6-semialdehyde 2-aminoadipic acid, ammonia and hydrogen peroxide. This new enzyme is compared to other enzymes related to lysine transformation. Two different groups have been used for comparison. Enzymes in the first group lead to 2-aminoadipic acid as a final product. The second one would be enzymes catalyzing the oxidative deamination of lysine releasing H2O2, namely lysine-alpha-oxidase (LalphaO) and lysyl oxidase (Lox). Kinetic properties, substrate specificity and inhibition pattern show clear differences with all above mentioned lysine-related enzymes. Thus, we propose to rename this enzyme lysine-epsilon-oxidase (lod for the gene) instead of marinocine. Lod shows high stereospecificity for free L-lysine, it is inhibited by substrate analogues, such as cadaverine and 6-aminocaproic acid, and also by beta-aminopropionitrile, suggesting the existence of a tyrosine-derived quinone cofactor at its active site.
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Affiliation(s)
- Daniel Gómez
- Department of Genetics and Microbiology, University of Murcia, 30100 Murcia, Spain
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