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Liang Z, Zhang P, Ma W, Zeng XA, Fang Z. Physicochemical properties, antioxidant activities and comprehensive phenolic profiles of tea-macerated Chardonnay wine and model wine. Food Chem 2024; 436:137748. [PMID: 37862991 DOI: 10.1016/j.foodchem.2023.137748] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/22/2023]
Abstract
A new type of flavored wine was produced by macerating either green tea or black tea into Chardonnay wine and model wine respectively, where the physicochemical properties (pH, titratable acidity, color) were modulated. Significant (p < 0.05) increases of total phenolic content and antioxidant activity (assessed by DPPH, FRAP and ABTS assays) were also observed in the tea macerated wines. A total of 160 phenolic and non-phenolic compounds were identified by HPLC-DAD-ESI-QTOF-MS/MS, where 55 phenolics were newly found in the tea macerated Chardonnay wine. The interaction between wine and tea phenolics led to additional 29 phenolic compounds and 4 non-phenolic compounds that were not found in either Chardonnay wine or tea. Catechin and epigallocatechin gallate were the most abundant phenolic compounds and contributed to the improved antioxidant activities. This study provided a promising prospect of tea as a novel additive in the production of flavored wine with enhanced functionalities.
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Affiliation(s)
- Zijian Liang
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC 3010, Australia
| | - Pangzhen Zhang
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC 3010, Australia
| | - Wen Ma
- School of Food and Wine, Ningxia University, Yinchuan, China
| | - Xin-An Zeng
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China.
| | - Zhongxiang Fang
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC 3010, Australia.
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2
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Bakun P, Mlynarczyk DT, Koczorowski T, Cerbin-Koczorowska M, Piwowarczyk L, Kolasiński E, Stawny M, Kuźmińska J, Jelińska A, Goslinski T. Tea-break with epigallocatechin gallate derivatives - Powerful polyphenols of great potential for medicine. Eur J Med Chem 2023; 261:115820. [PMID: 37776575 DOI: 10.1016/j.ejmech.2023.115820] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/09/2023] [Accepted: 09/12/2023] [Indexed: 10/02/2023]
Abstract
Epigallocatechin gallate (EGCG) is a polyphenol present in green tea (Camellia sinensis), which has revealed anti-cancer effects toward a variety of cancer cells in vitro and protective potential against neurodegenerative diseases such as Alzheimer's and Parkinson's. Unfortunately, EGCG presents disappointing bioavailability after oral administration, primarily due to its chemical instability and poor absorption. Due to these limitations, EGCG is currently not used in medication, but only as a dietary supplement in the form of green tea extract. Therefore, it needs further modifications before being considered suitable for extensive medical applications. In this article, we review the scientific literature about EGCG derivatives focusing on their biological properties and potential medical applications. The most common chemical modifications of epigallocatechin gallate rely on introducing fatty acid chains or sugar molecules to its chemical structure to modify solubility. Another frequently employed procedure is based on blocking EGCG's hydroxyl groups with various substituents. Novel derivatives reveal interesting properties, of which, antioxidant, anti-inflammatory, antitumor and antimicrobial, are especially important. It is worth noting that the most promising EGCG derivatives present higher stability and activity than base EGCG.
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Affiliation(s)
- Paweł Bakun
- Chair and Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwaldzka 6, Poznań, 60-780, Poland.
| | - Dariusz T Mlynarczyk
- Chair and Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwaldzka 6, Poznań, 60-780, Poland
| | - Tomasz Koczorowski
- Chair and Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwaldzka 6, Poznań, 60-780, Poland
| | - Magdalena Cerbin-Koczorowska
- Chair and Department of Medical Education, Poznan University of Medical Sciences, Rokietnicka 7, Poznań, 60-806, Poland; Edinburgh Medical School: Medical Education, University of Edinburgh, Chancellor's Building, EH16 4SB, Edinburgh, Scotland, United Kingdom
| | - Ludwika Piwowarczyk
- Chair and Department of Pharmaceutical Chemistry, Poznan University of Medical Sciences, Grunwaldzka 6, Poznań, 60-780, Poland
| | - Emil Kolasiński
- Chair and Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwaldzka 6, Poznań, 60-780, Poland
| | - Maciej Stawny
- Chair and Department of Pharmaceutical Chemistry, Poznan University of Medical Sciences, Grunwaldzka 6, Poznań, 60-780, Poland
| | - Joanna Kuźmińska
- Chair and Department of Pharmaceutical Chemistry, Poznan University of Medical Sciences, Grunwaldzka 6, Poznań, 60-780, Poland
| | - Anna Jelińska
- Chair and Department of Pharmaceutical Chemistry, Poznan University of Medical Sciences, Grunwaldzka 6, Poznań, 60-780, Poland
| | - Tomasz Goslinski
- Chair and Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwaldzka 6, Poznań, 60-780, Poland.
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3
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Liu C, Lv N, Xu YQ, Tong H, Sun Y, Huang M, Ren G, Shen Q, Wu R, Wang B, Cao Z, Xie H. pH-dependent interaction mechanisms between β-lactoglobulin and EGCG: Insights from multi-spectroscopy and molecular dynamics simulation methods. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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4
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The gel mechanism and carrier quality of fibrous and granular whey protein self-assembly. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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5
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Green Tea Polyphenol (-)-Epigallocatechin-3-Gallate (EGCG): A Time for a New Player in the Treatment of Respiratory Diseases? Antioxidants (Basel) 2022; 11:antiox11081566. [PMID: 36009285 PMCID: PMC9405266 DOI: 10.3390/antiox11081566] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/03/2022] [Accepted: 08/11/2022] [Indexed: 12/13/2022] Open
Abstract
(-)-Epigallocatechin-3-gallate (EGCG) is a major polyphenol of green tea that possesses a wide variety of actions. EGCG acts as a strong antioxidant which effectively scavenges reactive oxygen species (ROS), inhibits pro-oxidant enzymes including NADPH oxidase, activates antioxidant systems including superoxide dismutase, catalase, or glutathione, and reduces abundant production of nitric oxide metabolites by inducible nitric oxide synthase. ECGC also exerts potent anti-inflammatory, anti-fibrotic, pro-apoptotic, anti-tumorous, and metabolic effects via modulation of a variety of intracellular signaling cascades. Based on this knowledge, the use of EGCG could be of benefit in respiratory diseases with acute or chronic inflammatory, oxidative, and fibrotizing processes in their pathogenesis. This article reviews current information on the biological effects of EGCG in those respiratory diseases or animal models in which EGCG has been administered, i.e., acute respiratory distress syndrome, respiratory infections, COVID-19, bronchial asthma, chronic obstructive pulmonary disease, lung fibrosis, silicosis, lung cancer, pulmonary hypertension, and lung embolism, and critically discusses effectiveness of EGCG administration in these respiratory disorders. For this review, articles in English language from the PubMed database were used.
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6
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Méndez-Líter JA, Pozo-Rodríguez A, Madruga E, Rubert M, Santana AG, de Eugenio LI, Sánchez C, Martínez A, Prieto A, Martínez MJ. Glycosylation of Epigallocatechin Gallate by Engineered Glycoside Hydrolases from Talaromyces amestolkiae: Potential Antiproliferative and Neuroprotective Effect of These Molecules. Antioxidants (Basel) 2022; 11:antiox11071325. [PMID: 35883816 PMCID: PMC9312355 DOI: 10.3390/antiox11071325] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/24/2022] [Accepted: 06/30/2022] [Indexed: 02/04/2023] Open
Abstract
Glycoside hydrolases (GHs) are enzymes that hydrolyze glycosidic bonds, but some of them can also catalyze the synthesis of glycosides by transglycosylation. However, the yields of this reaction are generally low since the glycosides formed end up being hydrolyzed by these same enzymes. For this reason, mutagenic variants with null or drastically reduced hydrolytic activity have been developed, thus enhancing their synthetic ability. Two mutagenic variants, a glycosynthase engineered from a β-glucosidase (BGL-1-E521G) and a thioglycoligase from a β-xylosidase (BxTW1-E495A), both from the ascomycete Talaromyces amestolkiae, were used to synthesize three novel epigallocatechin gallate (EGCG) glycosides. EGCG is a phenolic compound from green tea known for its antioxidant effects and therapeutic benefits, whose glycosylation could increase its bioavailability and improve its bioactive properties. The glycosynthase BGL-1-E521G produced a β-glucoside and a β-sophoroside of EGCG, while the thioglycoligase BxTW1-E495A formed the β-xyloside of EGCG. Glycosylation occurred in the 5″ and 4″ positions of EGCG, respectively. In this work, the reaction conditions for glycosides’ production were optimized, achieving around 90% conversion of EGCG with BGL-1-E521G and 60% with BxTW1-E495A. The glycosylation of EGCG caused a slight loss of its antioxidant capacity but notably increased its solubility (between 23 and 44 times) and, in the case of glucoside, also improved its thermal stability. All three glycosides showed better antiproliferative properties on breast adenocarcinoma cell line MDA-MB-231 than EGCG, and the glucosylated and sophorylated derivatives induced higher neuroprotection, increasing the viability of SH-S5Y5 neurons exposed to okadaic acid.
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Affiliation(s)
- Juan A. Méndez-Líter
- Centro de Investigaciones Biológicas Margarita Salas, Department of Microbial and Plant Biotechnology, Spanish National Research Council (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain; (J.A.M.-L.); (A.P.-R.); (L.I.d.E.); (A.P.)
| | - Ana Pozo-Rodríguez
- Centro de Investigaciones Biológicas Margarita Salas, Department of Microbial and Plant Biotechnology, Spanish National Research Council (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain; (J.A.M.-L.); (A.P.-R.); (L.I.d.E.); (A.P.)
| | - Enrique Madruga
- Centro de Investigaciones Biológicas Margarita Salas, Department of Structural and Chemical Biology, Spanish National Research Council (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain; (E.M.); (A.M.)
| | - María Rubert
- Department of Biochemistry and Molecular Biology, School of Biology, Instituto de Investigación Hospital 12 de Octubre, Universidad Complutense de Madrid, C/de José Antonio Nováis 12, 28040 Madrid, Spain; (M.R.); (C.S.)
| | - Andrés G. Santana
- Department of Bioorganic Chemistry, Instituto de Química Orgánica General, Spanish National Research Council (CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain;
| | - Laura I. de Eugenio
- Centro de Investigaciones Biológicas Margarita Salas, Department of Microbial and Plant Biotechnology, Spanish National Research Council (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain; (J.A.M.-L.); (A.P.-R.); (L.I.d.E.); (A.P.)
| | - Cristina Sánchez
- Department of Biochemistry and Molecular Biology, School of Biology, Instituto de Investigación Hospital 12 de Octubre, Universidad Complutense de Madrid, C/de José Antonio Nováis 12, 28040 Madrid, Spain; (M.R.); (C.S.)
| | - Ana Martínez
- Centro de Investigaciones Biológicas Margarita Salas, Department of Structural and Chemical Biology, Spanish National Research Council (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain; (E.M.); (A.M.)
| | - Alicia Prieto
- Centro de Investigaciones Biológicas Margarita Salas, Department of Microbial and Plant Biotechnology, Spanish National Research Council (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain; (J.A.M.-L.); (A.P.-R.); (L.I.d.E.); (A.P.)
| | - María Jesús Martínez
- Centro de Investigaciones Biológicas Margarita Salas, Department of Microbial and Plant Biotechnology, Spanish National Research Council (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain; (J.A.M.-L.); (A.P.-R.); (L.I.d.E.); (A.P.)
- Correspondence:
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Bae KH, Chan KH, Kurisawa M. Autoxidation-Resistant, ROS-Scavenging, and Anti-Inflammatory Micellar Nanoparticles Self-Assembled from Poly(acrylic acid)-Green Tea Catechin Conjugates. ACS Macro Lett 2022; 11:835-840. [PMID: 35713474 DOI: 10.1021/acsmacrolett.2c00239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
(-)-Epigallocatechin-3-O-gallate (EGCG), the most bioactive catechin in green tea, has drawn significant interest as a potent antioxidant and anti-inflammatory compound. However, the application of EGCG has been limited by its rapid autoxidation at physiological pH, which generates cytotoxic levels of reactive oxygen species (ROS). Herein, we report the synthesis of poly(acrylic acid)-EGCG conjugates with tunable degrees of substitution and their spontaneous self-assembly into micellar nanoparticles with enhanced resistance against autoxidation. These nanoparticles not only exhibited superior oxidative stability and cytocompatibility over native EGCG, but also showed excellent ROS-scavenging and anti-inflammatory effects. This work presents a potential strategy to overcome the stability and cytotoxicity issues of EGCG, making it one step closer toward its widespread application.
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Affiliation(s)
- Ki Hyun Bae
- Institute of Bioengineering and Bioimaging, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Kiat Hwa Chan
- Division of Science, Yale-NUS College, 16 College Avenue West, Singapore 138527, Singapore
| | - Motoichi Kurisawa
- Institute of Bioengineering and Bioimaging, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
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8
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Singh S, Sahadevan R, Roy R, Biswas M, Ghosh P, Kar P, Sonawane A, Sadhukhan S. Structure-based design and synthesis of a novel long-chain 4''-alkyl ether derivative of EGCG as potent EGFR inhibitor: in vitro and in silico studies. RSC Adv 2022; 12:17821-17836. [PMID: 35765335 PMCID: PMC9201511 DOI: 10.1039/d2ra01919a] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 06/07/2022] [Indexed: 11/27/2022] Open
Abstract
Herein, we report the discovery of a novel long-chain ether derivative of (−)-epigallocatechin-3-gallate (EGCG), a major green tea polyphenol as a potent EGFR inhibitor. A series of 4′′-alkyl EGCG derivatives have been synthesized via regio-selectively alkylating the 4′′ hydroxyl group in the D-ring of EGCG and tested for their antiproliferative activities against high (A431), moderate (HeLa), and low (MCF-7) EGFR-expressing cancer cell lines. The most potent compound, 4′′-C14 EGCG showed the lowest IC50 values across all the tested cell lines. 4′′-C14 EGCG was also found to be significantly more stable than EGCG under physiological conditions (PBS at pH 7.4). Further western blot analysis and imaging data revealed that 4′′-C14 EGCG induced cell death in A431 cells with shrunken nuclei, nuclear fragmentation, membrane blebbing, and increased population of apoptotic cells where BAX upregulation and BCLXL downregulation were observed. In addition, autophosphorylation of EGFR and its downstream signalling proteins Akt and ERK were markedly inhibited by 4′′-C14 EGCG. MD simulation and the MM/PBSA analysis disclosed the binding mode of 4′′-C14 EGCG in the ATP-binding site of EGFR kinase domain. Taken together, our findings demonstrate that 4′′-C14 EGCG can act as a promising potent EGFR inhibitor with enhanced stability. Among the synthesized 4′′-alkyl EGCG derivatives, 4′′-C14 EGCG inhibited EGF stimulated phosphorylation of EGFR and its downstream signaling pathways, ERK and Akt. 4′′-C14 EGCG showed significantly improved stability than EGCG and induced apoptosis.![]()
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Affiliation(s)
- Satyam Singh
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore Madhya Pradesh 453 552 India
| | - Revathy Sahadevan
- Department of Chemistry, Indian Institute of Technology Palakkad Kerala 678 623 India
| | - Rajarshi Roy
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore Madhya Pradesh 453 552 India
| | - Mainak Biswas
- School of Biotechnology, KIIT Deemed to be University Bhubaneswar Orissa 751 024 India
| | - Priya Ghosh
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore Madhya Pradesh 453 552 India
| | - Parimal Kar
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore Madhya Pradesh 453 552 India
| | - Avinash Sonawane
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore Madhya Pradesh 453 552 India
| | - Sushabhan Sadhukhan
- Department of Chemistry, Indian Institute of Technology Palakkad Kerala 678 623 India .,Physical & Chemical Biology Laboratory, Indian Institute of Technology Palakkad Kerala 678 623 India.,Department of Biological Sciences & Engineering, Indian Institute of Technology Palakkad Kerala 678 623 India
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9
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Sahadevan R, Singh S, Binoy A, Sadhukhan S. Chemico-biological aspects of (-)-epigallocatechin- 3-gallate (EGCG) to improve its stability, bioavailability and membrane permeability: Current status and future prospects. Crit Rev Food Sci Nutr 2022; 63:10382-10411. [PMID: 35491671 DOI: 10.1080/10408398.2022.2068500] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Natural products have been a bedrock for drug discovery for decades. (-)-Epigallocatechin-3-gallate (EGCG) is one of the widely studied natural polyphenolic compounds derived from green tea. It is the key component believed to be responsible for the medicinal value of green tea. Significant studies implemented in in vitro, in cellulo, and in vivo models have suggested its anti-oxidant, anti-cancer, anti-diabetic, anti-inflammatory, anti-microbial, neuroprotective activities etc. Despite having such a wide array of therapeutic potential and promising results in preclinical studies, its applicability to humans has encountered with rather limited success largely due to the poor bioavailability, poor membrane permeability, rapid metabolic clearance and lack of stability of EGCG. Therefore, novel techniques are warranted to address those limitations so that EGCG or its modified analogs can be used in the clinical setup. This review comprehensively covers different strategies such as structural modifications, nano-carriers as efficient drug delivery systems, synergistic studies with other bioactivities to improve the chemico-biological aspects (e.g., stability, bioavailability, permeability, etc.) of EGCG for its enhanced pharmacokinetics and pharmacological properties, eventually enhancing its therapeutic potentials. We think this review article will serve as a strong platform with comprehensive literature on the development of novel techniques to improve the bioavailability of EGCG so that it can be translated to the clinical applications.
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Affiliation(s)
- Revathy Sahadevan
- Department of Chemistry, Indian Institute of Technology Palakkad, Kerala, India
| | - Satyam Singh
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Madhya Pradesh, India
| | - Anupama Binoy
- Department of Chemistry, Indian Institute of Technology Palakkad, Kerala, India
| | - Sushabhan Sadhukhan
- Department of Chemistry, Indian Institute of Technology Palakkad, Kerala, India
- Department of Biological Sciences and Engineering, Indian Institute of Technology Palakkad, Kerala, India
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10
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Mehmood S, Maqsood M, Mahtab N, Khan MI, Sahar A, Zaib S, Gul S. Epigallocatechin gallate: Phytochemistry, bioavailability, utilization challenges, and strategies. J Food Biochem 2022; 46:e14189. [PMID: 35474461 DOI: 10.1111/jfbc.14189] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/05/2022] [Accepted: 03/29/2022] [Indexed: 12/17/2022]
Abstract
Epigallocatechin gallate (EGCG), a green tea catechin, has gained the attention of current study due to its excellent health-promoting effects. It possesses anti-obesity, antimicrobial, anticancer, anti-inflammatory activities, and is under extensive investigation in functional foods for improvement. It is susceptible to lower stability, lesser bioavailability, and lower absorption rate due to various environmental, processing, formulations, and gastrointestinal conditions of the human body. Therefore, it is the foremost concern for the researchers to enhance its bioactivity and make it the most suitable therapeutic compound for its clinical applications. In the current review, factors affecting the bioavailability of EGCG and the possible strategies to overcome these issues are reviewed and discussed. This review summarizes structural modifications and delivery through nanoparticle-based approaches including nano-emulsions, encapsulations, and silica-based nanoparticles for effective use of EGCG in functional foods. Moreover, recent advances to enhance EGCG therapeutic efficacy by specifically targeting its molecules to increase its bioavailability and stability are also described. PRACTICAL APPLICATIONS: The main green tea constituent EGCG possesses several health-promoting effects making EGCG a potential therapeutic compound to cure ailments. However, its low stability and bioavailability render its uses in many disorders. Synthesizing EGCG prodrugs by structural modifications helps against its low bioavailability and stability by overcoming premature degradation and lower absorption rate. This review paper summarizes various strategies that benefit EGCG under different physiological conditions. The esterification, nanoparticle approaches, silica-based EGCG-NPs, and EGCG formulations serve as ideal EGCG modification strategies to deliver superior concentrations with lesser toxicity for its efficient penetration and absorption across cells both in vitro and in vivo. As a result of EGCG modifications, its bioactivities would be highly improved at lower doses. The protected or modified EGCG molecule would have enhanced potential effects and stability that would contribute to the clinical applications and expand its use in various food and cosmetic industries.
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Affiliation(s)
- Shomaila Mehmood
- Anhui Key Laboratory of Modern Biomanufacturing, School of Life Sciences, Anhui University, Hefei, P. R. China
| | - Maria Maqsood
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Nazia Mahtab
- School of Resources and Environmental Engineering, Anhui University, Hefei, P. R. China
| | - Muhammad Issa Khan
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Amna Sahar
- Department of Food Engineering, University of Agriculture, Faisalabad, Pakistan
| | - Sania Zaib
- Department of Biochemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Shehla Gul
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, Pakistan
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11
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Xie Z, Wang M, Deng Y, Li J, Li J, Pang W, Xie L, Jiang D, Huang Z, He T, Yang G. Acute toxicity of eucalyptus leachate tannins to zebrafish and the mitigation effect of Fe 3+ on tannin toxicity. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 229:113077. [PMID: 34915221 DOI: 10.1016/j.ecoenv.2021.113077] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/06/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
Fish ponds polluted by the black water of eucalyptus forests (formed by the complexation of eucalyptus tannins with Fe3+) have experienced fish deaths. However, the toxicity of the components of black water is still unclear. To study the acute toxicities of eucalyptus leachate tannins to fish, their changes in the presence of Fe3+, and the underlying mechanisms, the static bioassay test method was adopted for acute exposure testing of zebrafish. Zebrafish were exposed to three kinds of tannins, namely, tannic acid (TA), epigallocatechin gallate (EGCG) and tannins from fresh eucalyptus leaf leacheate (TFL), and to solutions of these tannins with different molar ratios of Fe3+, under both no-aeration and aeration conditions. The results showed that the 48 h LC50 values of TA, EGCG and TFL were respectively 92, 47, and 186 mg·L-1, under no aeration, and 171, 86, and 452 mg·L-1 under aeration. When Fe3+ at 2, 1, and 6 times the molar amount of tannin was added to LC100 solutions of TA, EGCG and TFL, zebrafish mortality in 24 h was reduced to 0-33%. Acute fish death in eucalyptus plantation areas is related to high concentrations of eucalyptus tannins in the water. However, with increasing dissolved oxygen and Fe3+ levels, the acute toxicity of tannins to fish can be reduced. Thus, the black water in eucalyptus plantation areas reflects a water quality phenomenon that reduces the acute toxicity of eucalyptus tannins to fish. The mechanism of tannin toxicity to fish may be related to the impairment of oxygen delivery by fish blood, but the mechanism needs further study. These results provide a scientific basis for the prevention and control of fish suffering from acute eucalyptus tannin poisoning in eucalyptus plantation areas and for the protection of water resources.
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Affiliation(s)
- Zhifeng Xie
- Forestry College of Guangxi University, Guangxi Key Laboratory of Forest Ecology and Conservation, No. 100 Daxue Road, Nanning 530004, China
| | - Miaoling Wang
- Forestry College of Guangxi University, Guangxi Key Laboratory of Forest Ecology and Conservation, No. 100 Daxue Road, Nanning 530004, China
| | - Yusong Deng
- Forestry College of Guangxi University, Guangxi Key Laboratory of Forest Ecology and Conservation, No. 100 Daxue Road, Nanning 530004, China
| | - Jining Li
- Forestry College of Guangxi University, Guangxi Key Laboratory of Forest Ecology and Conservation, No. 100 Daxue Road, Nanning 530004, China
| | - Jiantao Li
- Forestry College of Guangxi University, Guangxi Key Laboratory of Forest Ecology and Conservation, No. 100 Daxue Road, Nanning 530004, China
| | - Wending Pang
- Forestry College of Guangxi University, Guangxi Key Laboratory of Forest Ecology and Conservation, No. 100 Daxue Road, Nanning 530004, China
| | - Liujun Xie
- Forestry College of Guangxi University, Guangxi Key Laboratory of Forest Ecology and Conservation, No. 100 Daxue Road, Nanning 530004, China
| | - Daihua Jiang
- Guangxi Key Laboratory of Agro-Environment and Agro-Product Safety, Guangxi University, Nanning 530004, China
| | - Zhigang Huang
- Guangxi Key Laboratory of Agro-Environment and Agro-Product Safety, Guangxi University, Nanning 530004, China
| | - Tieguang He
- Institute of Agricultural Resources and Environment, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Gairen Yang
- Forestry College of Guangxi University, Guangxi Key Laboratory of Forest Ecology and Conservation, No. 100 Daxue Road, Nanning 530004, China.
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12
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Sengupta P, Bose A, Sen K. Liposomal Encapsulation of Phenolic Compounds for Augmentation of Bio‐Efficacy: A Review. ChemistrySelect 2021. [DOI: 10.1002/slct.202101821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Priti Sengupta
- Department of Chemistry University of Calcutta 92, APC Road Kolkata 700009 India
- Department of Chemistry Presidency University 86/1 College Street Kolkata 700073 India
| | - Adity Bose
- Department of Chemistry Presidency University 86/1 College Street Kolkata 700073 India
| | - Kamalika Sen
- Department of Chemistry University of Calcutta 92, APC Road Kolkata 700009 India
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Xu FW, Lv YL, Zhong YF, Xue YN, Wang Y, Zhang LY, Hu X, Tan WQ. Beneficial Effects of Green Tea EGCG on Skin Wound Healing: A Comprehensive Review. Molecules 2021; 26:6123. [PMID: 34684703 PMCID: PMC8540743 DOI: 10.3390/molecules26206123] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/02/2021] [Accepted: 10/04/2021] [Indexed: 12/18/2022] Open
Abstract
Epigallocatechin gallate (EGCG) is associated with various health benefits. In this review, we searched current work about the effects of EGCG and its wound dressings on skin for wound healing. Hydrogels, nanoparticles, micro/nanofiber networks and microneedles are the major types of EGCG-containing wound dressings. The beneficial effects of EGCG and its wound dressings at different stages of skin wound healing (hemostasis, inflammation, proliferation and tissue remodeling) were summarized based on the underlying mechanisms of antioxidant, anti-inflammatory, antimicrobial, angiogenesis and antifibrotic properties. This review expatiates on the rationale of using EGCG to promote skin wound healing and prevent scar formation, which provides a future clinical application direction of EGCG.
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Affiliation(s)
- Fa-Wei Xu
- Department of Plastic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, China; (F.-W.X.); (Y.-F.Z.); (Y.-N.X.); (Y.W.); (L.-Y.Z.); (X.H.)
| | - Ying-Li Lv
- Tea Research Institute, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310013, China;
| | - Yu-Fan Zhong
- Department of Plastic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, China; (F.-W.X.); (Y.-F.Z.); (Y.-N.X.); (Y.W.); (L.-Y.Z.); (X.H.)
| | - Ya-Nan Xue
- Department of Plastic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, China; (F.-W.X.); (Y.-F.Z.); (Y.-N.X.); (Y.W.); (L.-Y.Z.); (X.H.)
| | - Yong Wang
- Department of Plastic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, China; (F.-W.X.); (Y.-F.Z.); (Y.-N.X.); (Y.W.); (L.-Y.Z.); (X.H.)
| | - Li-Yun Zhang
- Department of Plastic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, China; (F.-W.X.); (Y.-F.Z.); (Y.-N.X.); (Y.W.); (L.-Y.Z.); (X.H.)
| | - Xian Hu
- Department of Plastic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, China; (F.-W.X.); (Y.-F.Z.); (Y.-N.X.); (Y.W.); (L.-Y.Z.); (X.H.)
| | - Wei-Qiang Tan
- Department of Plastic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, China; (F.-W.X.); (Y.-F.Z.); (Y.-N.X.); (Y.W.); (L.-Y.Z.); (X.H.)
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Jiang Z, Han Z, Qin C, Lai G, Wen M, Ho CT, Zhang L, Wan X. Model Studies on the Reaction Products Formed at Roasting Temperatures from either Catechin or Tea Powder in the Presence of Glucose. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:11417-11426. [PMID: 34519500 DOI: 10.1021/acs.jafc.1c03771] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
During tea processing, roasting significantly affects the transformation pathway of catechins. When (-)-epigallocatechin gallate (EGCG) and glucose were roasted at different pH values, the degree of degradation and isomerization of EGCG was the lowest at pH 7 and the highest at pH 8. Thirty-five products were found in the model reaction of EGCG and glucose under high temperatures, of which four EGCG-glucose adducts were identified by liquid chromatography-tandem mass spectrometry (LC-MS/MS) and nuclear magnetic resonance (NMR). In addition, catechins, gallic acid, and theanine in tea with added glucose were significantly reduced during roasting. The contents of four EGCG-glucose adducts were increased significantly at 150 °C after 30 min and dropped gradually after 60 min. Therefore, based on the present study, EGCG could form crosslinks with glucose under high temperatures in a short time, which provides insight for tea processing and synthesis of catechin-sugar adducts.
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Affiliation(s)
- Zongde Jiang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China
- International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | - Zisheng Han
- Department of Food Science, Rutgers University, New Brunswick, New Jersey 08901, United States
| | - Chunyin Qin
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China
- International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | - Guoping Lai
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China
- International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | - Mingchun Wen
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China
- International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | - Chi-Tang Ho
- International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
- Department of Food Science, Rutgers University, New Brunswick, New Jersey 08901, United States
| | - Liang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China
- International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China
- International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
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15
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Mishra PM, Yadav A, Kaushik K, Jaiswal A, Nandi CK. Super-Resolution Microscopy Revealed the Lysosomal Expansion During Epigallocatechin Gallate-Mediated Apoptosis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:10818-10826. [PMID: 34470217 DOI: 10.1021/acs.langmuir.1c01742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Direct visualization of the dynamic events in lysosomes during drug-mediated programmed cell death (apoptosis) is a great challenge. This is due to the lack of resolving power of a conventional microscope and also the unavailability of a suitable multimodal probe that simultaneously can carry the drug with high loading capacity and ensure its specific internalization into lysosomes. In this work, using super-resolution microscopy, we observed the lysosomal expansion during apoptosis that was treated with epigallocatechin gallate (EGCG) conjugated to bovine serum albumin (BSA). Albumin protein is known to internalize into lysosomes via endocytosis, thus helping in the specific delivery of EGCG to the lysosomal compartment. The conjugation of EGCG to BSA not only helped in increasing the killing efficiency of cancer cells but it also reduces the side effects and produces minimal reactive oxygen species. The decrease in local viscosity helped in lysosomal expansion during apoptosis.
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Affiliation(s)
- Pushpendra M Mishra
- School of Basic Sciences, Indian Institute of Technology Mandi, Himachal Pradesh175001, India
- Advanced Materials Research Centre, Indian Institute of Technology Mandi, Himachal Pradesh 175001, India
- BioX Centre, Indian Institute of Technology Mandi, Himachal Pradesh 175001, India
| | - Aditya Yadav
- School of Basic Sciences, Indian Institute of Technology Mandi, Himachal Pradesh175001, India
- Advanced Materials Research Centre, Indian Institute of Technology Mandi, Himachal Pradesh 175001, India
| | - Kush Kaushik
- School of Basic Sciences, Indian Institute of Technology Mandi, Himachal Pradesh175001, India
- Advanced Materials Research Centre, Indian Institute of Technology Mandi, Himachal Pradesh 175001, India
| | - Amit Jaiswal
- School of Basic Sciences, Indian Institute of Technology Mandi, Himachal Pradesh175001, India
- BioX Centre, Indian Institute of Technology Mandi, Himachal Pradesh 175001, India
| | - Chayan K Nandi
- School of Basic Sciences, Indian Institute of Technology Mandi, Himachal Pradesh175001, India
- Advanced Materials Research Centre, Indian Institute of Technology Mandi, Himachal Pradesh 175001, India
- BioX Centre, Indian Institute of Technology Mandi, Himachal Pradesh 175001, India
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16
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Dermal Drug Delivery of Phytochemicals with Phenolic Structure via Lipid-Based Nanotechnologies. Pharmaceuticals (Basel) 2021; 14:ph14090837. [PMID: 34577536 PMCID: PMC8471500 DOI: 10.3390/ph14090837] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/17/2021] [Accepted: 08/20/2021] [Indexed: 12/11/2022] Open
Abstract
Phenolic compounds are a large, heterogeneous group of secondary metabolites found in various plants and herbal substances. From the perspective of dermatology, the most important benefits for human health are their pharmacological effects on oxidation processes, inflammation, vascular pathology, immune response, precancerous and oncological lesions or formations, and microbial growth. Because the nature of phenolic compounds is designed to fit the phytochemical needs of plants and not the biopharmaceutical requirements for a specific route of delivery (dermal or other), their utilization in cutaneous formulations sets challenges to drug development. These are encountered often due to insufficient water solubility, high molecular weight and low permeation and/or high reactivity (inherent for the set of representatives) and subsequent chemical/photochemical instability and ionizability. The inclusion of phenolic phytochemicals in lipid-based nanocarriers (such as nanoemulsions, liposomes and solid lipid nanoparticles) is so far recognized as a strategic physico-chemical approach to improve their in situ stability and introduction to the skin barriers, with a view to enhance bioavailability and therapeutic potency. This current review is focused on recent advances and achievements in this area.
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Zi CT, Yang L, Hu Y, Zhang P, Tang H, Zhang BL, Shen XJ, Kong QH, Wang Y, Wang XJ, Sheng J. Synthesis, antitumor activity, and molecular docking of (-)-epigallocatechin-3-gallate-4β-triazolopodophyllotoxin conjugates. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2021; 23:772-780. [PMID: 32619100 DOI: 10.1080/10286020.2020.1786066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 06/17/2020] [Indexed: 06/11/2023]
Abstract
Two new (-)-epigallocatechin-3-gallate-4β-triazolopodophyllotoxin conjugates (7 and 8) were synthesized and evaluated for biological activity. Compound 8 showed highly potent anticancer activity against A-549 cell line with IC50 of 2.16 ± 1.02 μM, which displayed the highest selectivity index value (SI = 14.5) in A-549 cells. Molecular docking indicated that compound 8 could bind with the active site of Top-II. Therefore, compound 8 might be a promising candidate for further development.
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Affiliation(s)
- Cheng-Ting Zi
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
- College of Science, Yunnan Agricultural University, Kunming 650201, China
| | - Liu Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yue Hu
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
| | - Pan Zhang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
| | - Han Tang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
| | - Bang-Lei Zhang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
| | - Xiao-Jing Shen
- College of Science, Yunnan Agricultural University, Kunming 650201, China
| | - Qing-Hua Kong
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Ya Wang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
- College of Science, Yunnan Agricultural University, Kunming 650201, China
| | - Xuan-Jun Wang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
- College of Science, Yunnan Agricultural University, Kunming 650201, China
| | - Jun Sheng
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
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18
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Wang Y, Shen XJ, Su FW, Xie YR, Wang LX, Zhang N, Wu YL, Niu Y, Zhang DY, Zi CT, Wang XJ, Sheng J. Novel Perbutyrylated Glucose Derivatives of (-)-Epigallocatechin-3-Gallate Inhibit Cancer Cells Proliferation by Decreasing Phosphorylation of the EGFR: Synthesis, Cytotoxicity, and Molecular Docking. Molecules 2021; 26:4361. [PMID: 34299635 PMCID: PMC8306927 DOI: 10.3390/molecules26144361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/03/2021] [Accepted: 07/14/2021] [Indexed: 01/10/2023] Open
Abstract
Lung cancer is one of the most commonly occurring cancer mortality worldwide. The epidermal growth factor receptor (EGFR) plays an important role in cellular functions and has become the new promising target. Natural products and their derivatives with various structures, unique biological activities, and specific selectivity have served as lead compounds for EGFR. D-glucose and EGCG were used as starting materials. A series of glucoside derivatives of EGCG (7-12) were synthesized and evaluated for their in vitro anticancer activity against five human cancer cell lines, including HL-60, SMMC-7721, A-549, MCF-7, and SW480. In addition, we investigated the structure-activity relationship and physicochemical property-activity relationship of EGCG derivatives. Compounds 11 and 12 showed better growth inhibition than others in four cancer cell lines (HL-60, SMMC-7721, A-549, and MCF), with IC50 values in the range of 22.90-37.87 μM. Compounds 11 and 12 decreased phosphorylation of EGFR and downstream signaling protein, which also have more hydrophobic interactions than EGCG by docking study. The most active compounds 11 and 12, both having perbutyrylated glucose residue, we found that perbutyrylation of the glucose residue leads to increased cytotoxic activity and suggested that their potential as anticancer agents for further development.
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Affiliation(s)
- Ya Wang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, College of Science, Yunnan Agricultural University, Kunming 650201, China; (Y.W.); (Y.-R.X.); (L.-X.W.); (N.Z.); (Y.-L.W.); (Y.N.); (D.-Y.Z.)
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Xiao-Jing Shen
- Party Committee of Organ, Yunnan Agricultural University, Kunming 650201, China;
| | - Fa-Wu Su
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China;
| | - Yin-Rong Xie
- Key Laboratory of Pu-er Tea Science, Ministry of Education, College of Science, Yunnan Agricultural University, Kunming 650201, China; (Y.W.); (Y.-R.X.); (L.-X.W.); (N.Z.); (Y.-L.W.); (Y.N.); (D.-Y.Z.)
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Li-Xia Wang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, College of Science, Yunnan Agricultural University, Kunming 650201, China; (Y.W.); (Y.-R.X.); (L.-X.W.); (N.Z.); (Y.-L.W.); (Y.N.); (D.-Y.Z.)
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Ning Zhang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, College of Science, Yunnan Agricultural University, Kunming 650201, China; (Y.W.); (Y.-R.X.); (L.-X.W.); (N.Z.); (Y.-L.W.); (Y.N.); (D.-Y.Z.)
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Yi-Long Wu
- Key Laboratory of Pu-er Tea Science, Ministry of Education, College of Science, Yunnan Agricultural University, Kunming 650201, China; (Y.W.); (Y.-R.X.); (L.-X.W.); (N.Z.); (Y.-L.W.); (Y.N.); (D.-Y.Z.)
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Yun Niu
- Key Laboratory of Pu-er Tea Science, Ministry of Education, College of Science, Yunnan Agricultural University, Kunming 650201, China; (Y.W.); (Y.-R.X.); (L.-X.W.); (N.Z.); (Y.-L.W.); (Y.N.); (D.-Y.Z.)
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Dong-Ying Zhang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, College of Science, Yunnan Agricultural University, Kunming 650201, China; (Y.W.); (Y.-R.X.); (L.-X.W.); (N.Z.); (Y.-L.W.); (Y.N.); (D.-Y.Z.)
| | - Cheng-Ting Zi
- Key Laboratory of Pu-er Tea Science, Ministry of Education, College of Science, Yunnan Agricultural University, Kunming 650201, China; (Y.W.); (Y.-R.X.); (L.-X.W.); (N.Z.); (Y.-L.W.); (Y.N.); (D.-Y.Z.)
| | - Xuan-Jun Wang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, College of Science, Yunnan Agricultural University, Kunming 650201, China; (Y.W.); (Y.-R.X.); (L.-X.W.); (N.Z.); (Y.-L.W.); (Y.N.); (D.-Y.Z.)
| | - Jun Sheng
- Key Laboratory of Pu-er Tea Science, Ministry of Education, College of Science, Yunnan Agricultural University, Kunming 650201, China; (Y.W.); (Y.-R.X.); (L.-X.W.); (N.Z.); (Y.-L.W.); (Y.N.); (D.-Y.Z.)
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
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Yammine A, Namsi A, Vervandier-Fasseur D, Mackrill JJ, Lizard G, Latruffe N. Polyphenols of the Mediterranean Diet and Their Metabolites in the Prevention of Colorectal Cancer. Molecules 2021; 26:3483. [PMID: 34201125 PMCID: PMC8227701 DOI: 10.3390/molecules26123483] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 02/07/2023] Open
Abstract
The Mediterranean diet is a central element of a healthy lifestyle, where polyphenols play a key role due to their anti-oxidant properties, and for some of them, as nutripharmacological compounds capable of preventing a number of diseases, including cancer. Due to the high prevalence of intestinal cancer (ranking second in causing morbidity and mortality), this review is focused on the beneficial effects of selected dietary phytophenols, largely present in Mediterranean cooking: apigenin, curcumin, epigallocatechin gallate, quercetin-rutine, and resveratrol. The role of the Mediterranean diet in the prevention of colorectal cancer and future perspectives are discussed in terms of food polyphenol content, the effectiveness, the plasma level, and the importance of other factors, such as the polyphenol metabolites and the influence of the microbiome. Perspectives are discussed in terms of microbiome-dependency of the brain-second brain axis. The emergence of polyphenol formulations may strengthen the efficiency of the Mediterranean diet in the prevention of cancer.
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Affiliation(s)
- Aline Yammine
- Team Bio-PeroxIL, “Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism” (EA7270), University of Bourgogne Franche-Comté, Inserm, 21000 Dijon, France; (A.Y.); (A.N.); (G.L.)
| | - Amira Namsi
- Team Bio-PeroxIL, “Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism” (EA7270), University of Bourgogne Franche-Comté, Inserm, 21000 Dijon, France; (A.Y.); (A.N.); (G.L.)
| | - Dominique Vervandier-Fasseur
- Team OCS, Institute of Molecular Chemistry of University of Burgundy (ICMUB UMR CNRS 6302), University of Bourgogne Franche-Comté, 21000 Dijon, France;
| | - John J. Mackrill
- Department of Physiology, University College Cork, BioScience Institute, College Road, T12 YT20 Cork, Ireland;
| | - Gérard Lizard
- Team Bio-PeroxIL, “Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism” (EA7270), University of Bourgogne Franche-Comté, Inserm, 21000 Dijon, France; (A.Y.); (A.N.); (G.L.)
| | - Norbert Latruffe
- Team Bio-PeroxIL, “Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism” (EA7270), University of Bourgogne Franche-Comté, Inserm, 21000 Dijon, France; (A.Y.); (A.N.); (G.L.)
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Shi BY, Wang ZH, Zhang N, Xie YR, Sun XL, Yang HN, Wu YL, Zi CT, Wang XJ, Sheng J. Syntheses and anticancer activities of novel glucosylated (−)-epigallocatechin-3-gallate derivatives linked via triazole rings. Med Chem Res 2021. [DOI: 10.1007/s00044-021-02726-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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21
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Zi CT, Sun PY, Zhang N, Tang H, Yang HN, Wang Q, Wang YN, Wang J, Wang XJ, Sheng J. Synthesis of (-)-epigallocatechin-3-gallate derivative containing a triazole ring and combined with cisplatin/paclitaxel inhibits NSCLC cancer cells by decreasing phosphorylation of the EGFR. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820910390] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Non-small-cell lung cancer is one of the principal causes of cancer-related death around the world. Chemotherapy is commonly used to treat wild type of epidermal growth factor receptor non-small-cell lung cancer. (-)-Epigallocatechin-3-gallate is the most abundant and active catechin. However, (-)-epigallocatechin-3-gallate has limited clinical application due to its poor stability and absorption. Herein, we report that a glycosylated azide undergoes a click reaction with the terminal alkyne of (-)-epigallocatechin-3-gallate to yield a triazole-linked glucose-(-)-epigallocatechin-3-gallate derivative and have evaluated its in vitro anticancer activity against human non-small-cell lung cancer cells using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. The product inhibits human non-small-cell lung cancer cell lines with wild type of epidermal growth factor receptor and in combination with cisplatin/paclitaxel results in more pronounced proliferation inhibition than when used alone. Stability investigations indicates that the conjugated glucose residue can improve the stability of the (-)-epigallocatechin-3-gallate scaffold. Our studies suggest that the combination of the glucose-(-)-epigallocatechin-3-gallate derivative and chemotherapeutic drugs may provide a novel strategy for the treatment of non-small-cell lung cancer.
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Affiliation(s)
- Cheng-Ting Zi
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P.R. China
- College of Science, Yunnan Agricultural University, Kunming, P.R. China
| | - Pei-Yuan Sun
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P.R. China
| | - Ning Zhang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P.R. China
| | - Han Tang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P.R. China
| | - Hao-Nang Yang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P.R. China
| | - Qi Wang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P.R. China
| | - Yu-Na Wang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P.R. China
| | - Jing Wang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P.R. China
| | - Xuan-Jun Wang
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P.R. China
- College of Science, Yunnan Agricultural University, Kunming, P.R. China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, P.R. China
| | - Jun Sheng
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P.R. China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, P.R. China
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22
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Lai WF, Baig MMFA, Wong WT, Zhu BT. Epigallocatechin-3-gallate in functional food development: From concept to reality. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.04.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Dai W, Ruan C, Zhang Y, Wang J, Han J, Shao Z, Sun Y, Liang J. Bioavailability enhancement of EGCG by structural modification and nano-delivery: A review. J Funct Foods 2020. [DOI: 10.1016/j.jff.2019.103732] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Wang YN, Wang J, Yang HN, Zhang BL, Zhang P, Sun PY, Zhang N, Wang Y, Sheng J, Wang XJ, Zi CT. The oxidation of (−)-epigallocatechin-3-gallate inhibits T-cell acute lymphoblastic leukemia cell line HPB-ALL via the regulation of Notch1 expression. RSC Adv 2020; 10:1679-1684. [PMID: 35494663 PMCID: PMC9047518 DOI: 10.1039/c9ra08459b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 12/23/2019] [Indexed: 01/05/2023] Open
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive hematological malignancy, and commonly associated with activating mutations in the Notch1 pathway. (−)-Epigallocatechin-3-gallate (EGCG) is the most abundant and active catechin and has been shown to regulate Notch signaling. Taking into account the highly oxidizable and unstable of EGCG, we proposed that EGCG oxides may have greater potential to regulate Notch signaling than EGCG. In this study, we isolated and identified EGCG oxides (compound 2–4), using a chemical oxidation strategy, and evaluated for cytotoxicity against T-cell acute lymphoblastic leukemia cell line (HPB-ALL) by using the MTS assay. We found compound 3 significantly induced cell proliferation inhibition (38.3858 ± 1.67106 μM), cell apoptosis and cell cycle arrest in a dose-dependent manner. Remarkably, compound 3 inhibited expression of Notch1 compared with EGCG in HPB-ALL cells. Meanwhile, we found that compound 3 significantly inhibited c-Myc and Hes1, which are downstream target genes of Notch1. The findings demonstrate for the first time that an oxidation product of EGCG (compound 3) inhibits T-cell acute lymphoblastic leukemia cell line (HPB-ALL) and is a promising agent for cancer therapy deserving further research. T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive hematological malignancy, and commonly associated with activating mutations in the Notch1 pathway.![]()
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Wang J, Sun P, Wang Q, Zhang P, Wang Y, Zi C, Wang X, Sheng J. (-)-Epigallocatechin-3-gallate derivatives combined with cisplatin exhibit synergistic inhibitory effects on non-small-cell lung cancer cells. Cancer Cell Int 2019; 19:266. [PMID: 31636509 PMCID: PMC6791019 DOI: 10.1186/s12935-019-0981-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 09/27/2019] [Indexed: 01/04/2023] Open
Abstract
Background Non-small-cell lung cancer (NSCLC) is the leading cause of cancer-related death worldwide. The inhibition of epidermal growth factor receptor (EGFR) signaling by tyrosine kinase inhibitors or monoclonal antibodies plays a key role in NSCLC treatment. Unfortunately, these treatment strategies are limited by eventual resistance and cell lines with differential EGFR status. Therefore, new therapeutic strategies for NSCLC are urgently required. Methods To improve the stability and absorption of (−)-epigallocatechin-3-gallate (EGCG), we synthesized a series of EGCG derivatives. The antitumor activities of EGCG derivatives with or without cisplatin were investigated in vitro and vivo. Cell proliferation, cell cycle distribution and apoptosis were measured in NSCLC cell lines and in vivo in a NCI-H441 xenograft model. Results We found that the EGCG derivatives inhibited cell viability and colony formation, caused cell cycle redistribution, and induced apoptosis. More importantly, the combination of the EGCG derivative and cisplatin led to increased growth inhibition, caused cell cycle redistribution, and enhanced the apoptosis rate compared to either compound alone. Consistent with the experiments in vitro, EGCG derivatives plus cisplatin significantly reduced tumor growth. Conclusions The combination treatment was found to inhibit the EGFR signaling pathway and decrease the expression of p-EGFR, p-AKT, and p-ERK in vitro and vivo. Our results suggest that compound 3 is a novel potential compound for NSCLC patients.
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Affiliation(s)
- Jing Wang
- 1Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan China.,2College of Science, Yunnan Agricultural University, Kunming, 650201 Yunnan China.,3College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan China
| | - Peiyuan Sun
- 1Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan China.,3College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan China
| | - Qi Wang
- 1Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan China
| | - Pan Zhang
- 1Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan China
| | - Yuna Wang
- 1Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan China.,3College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan China
| | - Chengting Zi
- 1Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan China.,2College of Science, Yunnan Agricultural University, Kunming, 650201 Yunnan China
| | - Xuanjun Wang
- 1Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan China.,2College of Science, Yunnan Agricultural University, Kunming, 650201 Yunnan China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Kunming, Yunnan China
| | - Jun Sheng
- 1Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan China.,2College of Science, Yunnan Agricultural University, Kunming, 650201 Yunnan China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Kunming, Yunnan China
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Tuyen NT, Van Hieu T, Dien PG, Ninh T, Hung NT, Hoang VD. A New Sexangularetin Derivative From Camellia hakodae. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19876209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A new flavonoid, sexangularetin 3- O-(2″- O-( E) -p-coumaroyl-β -d-glucopyranoside) (1), together with 9 known flavonoid compounds (2-10), was isolated from flowers of Camellia hakodae Ninh. Their structures were established based on physicochemical and spectroscopic analyses. The new compound displayed moderate to weak cytotoxic activities against HepG2 (IC50 192.0 μg/mL), Lu (IC50 90.2 μg/mL), and KB (IC50 72.7 μg/mL) cell lines, and inactivity against MCF7 (IC50 256.0 μg/mL).
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Affiliation(s)
- Nguyen T. Tuyen
- Soc Son Cooperative of Conservation and Development of Medicinal Herbs, Ha Noi, Vietnam
| | - Tran Van Hieu
- Soc Son Cooperative of Conservation and Development of Medicinal Herbs, Ha Noi, Vietnam
| | - Pham G. Dien
- Institute of Chemistry, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Tran Ninh
- Ha Noi University of Science, Vietnam
| | | | - Vu D. Hoang
- School of Chemical Engineering, Ha Noi University of Science and Technology, Vietnam
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Klingel T, Hadamjetz M, Fischer A, Wefers D. Glucosylation of flavonoids and flavonoid glycosides by mutant dextransucrase from Lactobacillus reuteri TMW 1.106. Carbohydr Res 2019; 483:107741. [DOI: 10.1016/j.carres.2019.107741] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/09/2019] [Accepted: 07/09/2019] [Indexed: 02/08/2023]
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Su X, Wang W, Xia T, Gao L, Shen G, Pang Y. Characterization of a heat responsive UDP: Flavonoid glucosyltransferase gene in tea plant (Camellia sinensis). PLoS One 2018; 13:e0207212. [PMID: 30475819 PMCID: PMC6261043 DOI: 10.1371/journal.pone.0207212] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 10/27/2018] [Indexed: 12/11/2022] Open
Abstract
Tea plant (Camellia sinensis) accumulates abundant flavonoid glycosides that are the major bioactive ingredients in tea. Biosynthesis of flavonoid glycosides are catalyzed by UDP-glucosyltransferases (UGTs) that are widely present in plants. Among one hundred and seventy-eight UGTs genes that we have previously identified in tea plant, few of them have been functionally characterized. In the present study, we further identified UGT73A17 gene that is responsible for the biosynthesis of a broad range of flavonoid glycosides. Sequence analysis revealed that the deduced UGT73A17 protein showed high identity with 7-O-glycosyltransferases at amino acid level and it was clustered into the clade containing several 7-O-glycosyltransferases from other plant species. Enzymatic assays revealed that the recombinant UGT73A17 protein (rUGT73A17) exhibited activity toward flavonols (kaempferol, quercetin, and myricetin), flavones (apigenin, luteolin, and tricetin), flavanone (naringenin), isoflavones (genistein) and epicatechin gallate, yielding 7-O-glucosides as the major in vitro products. In particular, rUGT73A17 displayed higher activity at high temperatures (eg. 50°C) than at low temperatures, which was consistent with its relatively high expression level at high temperatures. Two amino acid substitutions at I296L and V466A improved the enzymatic activity of rUGT73A17. Our study demonstrated that UGT73A17 is responsible for the biosynthesis of a broad range of flavonoid glucosides, which is also involved in heat response and quality of tea plant.
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Affiliation(s)
- Xiaojia Su
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, China
- Institute of Botany, the Chinese Academy of Sciences, Beijing, China
| | - Wenzhao Wang
- School of Life Science, Anhui Agricultural University, Hefei, China
| | - Tao Xia
- School of Life Science, Anhui Agricultural University, Hefei, China
| | - Liping Gao
- School of Life Science, Anhui Agricultural University, Hefei, China
| | - Guoan Shen
- The Institute of Medicinal Plant Development, Beijing, China
| | - Yongzhen Pang
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, China
- * E-mail:
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Cytoprotective Effect of Epigallocatechin Gallate (EGCG)-5'-O-α-Glucopyranoside, a Novel EGCG Derivative. Int J Mol Sci 2018; 19:ijms19051466. [PMID: 29762498 PMCID: PMC5983637 DOI: 10.3390/ijms19051466] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 05/08/2018] [Accepted: 05/11/2018] [Indexed: 12/22/2022] Open
Abstract
Epigallocatechin gallate (EGCG) is a well-studied polyphenol with antioxidant effects. Since EGCG has low solubility and stability, many researchers have modified EGCG residues to ameliorate these problems. A novel EGCG derivative, EGCG-5′-O-α-glucopyranoside (EGCG-5′Glu), was synthesized, and its characteristics were investigated. EGCG-5′Glu showed antioxidant effects in cell and cell-free systems. Under SNP-derived radical exposure, EGCG-5′Glu decreased nitric oxide (NO) production, and recovered ROS-mediated cell viability. Moreover, EGCG-5′Glu regulated apoptotic pathways (caspases) and cell survival molecules (phosphoinositide 3-kinase (PI3K) and phosphoinositide-dependent kinase 1 (PDK1)). In another radical-induced condition, ultraviolet B (UVB) irradiation, EGCG-5′Glu protected cells from UVB and regulated the PI3K/PDK1/AKT pathway. Next, the proliferative effect of EGCG-5′Glu was examined. EGCG-5′Glu increased cell proliferation by modulating nuclear factor (NF)-κB activity. EGCG-5′Glu protects and repairs cells from external damage via its antioxidant effects. These results suggest that EGCG-5′Glu could be used as a cosmetics ingredient or dietary supplement.
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Bello M, Saldaña-Rivero L, Correa-Basurto J, García B, Sánchez-Espinosa VA. Structural and energetic basis for the molecular recognition of dual synthetic vs. natural inhibitors of EGFR/HER2. Int J Biol Macromol 2018; 111:569-586. [PMID: 29329808 DOI: 10.1016/j.ijbiomac.2017.12.162] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 12/12/2017] [Accepted: 12/30/2017] [Indexed: 12/17/2022]
Abstract
Activation of EGFR starts by ligand binding at the extracellular domain which results in homo and heterodimerization, leading to phosphorylation, activation of downstream signaling pathways which upregulate expression of genes, proliferation and angiogenesis. Abnormalities in the expression of EGFR play a critical role in the development of different types of cancer. HER2 is the preferred heterodimerization partner for EGFR; this biological characteristic together with the high percentage of structural homology has been exploited in the design of dual synthetic inhibitors against EGFR/HER2. Herein we combined structural data and molecular dynamics (MD) simulations coupled to an MMGBSA approach to provide insight into the binding mechanism between two dual synthetics (lapatinib and TAK-285) and one dual natural inhibitor (EGCG) which target EGFR/HER2. In addition, we proposed some EGCG derivatives which were filtered through in silico screening. Structural analysis demonstrated that the coupling of synthetic, natural or newly designed compounds impacts the conformational space of EGFR and HER2 differently. Energetic analysis points out that lapatinib and TAK-285 have better affinity for inactive EGFR than the active EGFR state or HER2, whereas some EGCG derivatives seem to form binding affinities similar to those observed for lapatinib or TAK-285.
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Affiliation(s)
- Martiniano Bello
- Laboratorio de Modelado Molecular, Bioinformática y Diseño de Fármacos de la Escuela Superior de Medicina, Instituto Politécnico Nacional, México, Plan de San Luis Y Diaz Mirón S/N, Col. Casco de Santo Tomas, Mexico City CP: 11340, Mexico.
| | - Lucia Saldaña-Rivero
- Laboratorio de Modelado Molecular, Bioinformática y Diseño de Fármacos de la Escuela Superior de Medicina, Instituto Politécnico Nacional, México, Plan de San Luis Y Diaz Mirón S/N, Col. Casco de Santo Tomas, Mexico City CP: 11340, Mexico
| | - José Correa-Basurto
- Laboratorio de Modelado Molecular, Bioinformática y Diseño de Fármacos de la Escuela Superior de Medicina, Instituto Politécnico Nacional, México, Plan de San Luis Y Diaz Mirón S/N, Col. Casco de Santo Tomas, Mexico City CP: 11340, Mexico
| | - Benjamín García
- Laboratorio de Modelado Molecular, Bioinformática y Diseño de Fármacos de la Escuela Superior de Medicina, Instituto Politécnico Nacional, México, Plan de San Luis Y Diaz Mirón S/N, Col. Casco de Santo Tomas, Mexico City CP: 11340, Mexico
| | - Victor Armando Sánchez-Espinosa
- Laboratorio de Modelado Molecular, Bioinformática y Diseño de Fármacos de la Escuela Superior de Medicina, Instituto Politécnico Nacional, México, Plan de San Luis Y Diaz Mirón S/N, Col. Casco de Santo Tomas, Mexico City CP: 11340, Mexico
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Su X, Shen G, Di S, Dixon RA, Pang Y. Characterization of UGT716A1 as a Multi-substrate UDP:Flavonoid Glucosyltransferase Gene in Ginkgo biloba. FRONTIERS IN PLANT SCIENCE 2017; 8:2085. [PMID: 29270187 PMCID: PMC5725826 DOI: 10.3389/fpls.2017.02085] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 11/22/2017] [Indexed: 05/10/2023]
Abstract
Ginkgo biloba L., a "living fossil" and medicinal plant, is a well-known rich source of bioactive flavonoids. The molecular mechanism underlying the biosynthesis of flavonoid glucosides, the predominant flavonoids in G. biloba, remains unclear. To better understand flavonoid glucosylation in G. biloba, we generated a transcriptomic dataset of G. biloba leaf tissue by high-throughput RNA sequencing. We identified 25 putative UDP-glycosyltransferase (UGT) unigenes that are potentially involved in the flavonoid glycosylation. Among them, we successfully isolated and expressed eight UGT genes in Escherichia coli, and found that recombinant UGT716A1 protein was active toward broad range of flavonoid/phenylpropanoid substrates. In particular, we discovered the first recombinant UGT protein, UGT716A1 from G. biloba, possessing unique activity toward flavanol gallates that have been extensively documented to have significant bioactivity relating to human health. UGT716A1 expression level paralleled the flavonoid distribution pattern in G. biloba. Ectopic over-expression of UGT716A1 in Arabidopsis thaliana led to increased accumulation of several flavonol glucosides. Identification and comparison of the in vitro enzymatic activity of UGT716A1 homologs revealed a UGT from the primitive land species Physcomitrella patens also showed broader substrate spectrum than those from higher plants A. thaliana, Vitis vinifera, and Medicago truncatula. The characterization of UGT716A1 from G. biloba bridges a gap in the evolutionary history of UGTs in gymnosperms. We also discuss the implication of UGT716A1 for biosynthesis, evolution, and bioengineering of diverse glucosylated flavonoids.
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Affiliation(s)
- Xiaojia Su
- Key Laboratory of Plant Resources and Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Guoan Shen
- Key Laboratory of Plant Resources and Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Shaokang Di
- Key Laboratory of Plant Resources and Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Richard A. Dixon
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton TX, United States
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, China
| | - Yongzhen Pang
- Key Laboratory of Plant Resources and Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
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Nguyen TTH, Kim NM, Yeom SC, Han S, Kwak SH, Kim SB, Park JS, Mok IK, Kim D. Biological characterization of epigallocatechin gallate complex with different steviol glucosides. BIOTECHNOL BIOPROC E 2017. [DOI: 10.1007/s12257-017-0286-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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33
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A Review of the Antiviral Role of Green Tea Catechins. Molecules 2017; 22:molecules22081337. [PMID: 28805687 PMCID: PMC6152177 DOI: 10.3390/molecules22081337] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 08/07/2017] [Accepted: 08/10/2017] [Indexed: 12/16/2022] Open
Abstract
Over the centuries, infectious diseases caused by viruses have seriously threatened human health globally. Viruses are responsible not only for acute infections but also many chronic infectious diseases. To prevent diseases caused by viruses, the discovery of effective antiviral drugs, in addition to vaccine development, is important. Green tea catechins (GTCs) are polyphenolic compounds from the leaves of Camelliasinensis. In recent decades, GTCs have been reported to provide various health benefits against numerous diseases. Studies have shown that GTCs, especially epigallocatechin-3-gallate (EGCG), have antiviral effects against diverse viruses. The aim of this review is to summarize the developments regarding the antiviral activities of GTCs, to discuss the mechanisms underlying these effects and to offer suggestions for future research directions and perspectives on the antiviral effects of EGCG.
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Liu T, Ding S, Yin D, Cuan X, Xie C, Xu H, Wang X, Sheng J. Pu-erh Tea Extract Ameliorates Ovariectomy-Induced Osteoporosis in Rats and Suppresses Osteoclastogenesis In Vitro. Front Pharmacol 2017; 8:324. [PMID: 28620304 PMCID: PMC5450042 DOI: 10.3389/fphar.2017.00324] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 05/15/2017] [Indexed: 01/19/2023] Open
Abstract
Background and Objective: Tea drinking is associated with positive effects on bone health and may protect against osteoporosis, especially in elderly women. Pu-erh tea has many beneficial effects on human health; however, whether Pu-erh tea has anti-osteoporotic potential remains unclear. Thus, we investigated the effects of Pu-erh tea extract (PTE) on ovariectomy-induced osteoporosis in rats and on osteoclastogenesis in vitro. Methods: Female Wistar rats were divided into six groups: the sham, model, and Xian-Ling-Gu-Bao capsule (XLGB) groups, and the low-, medium-, and high-dose PTE groups. Ovariectomized (OVX) rats were used as an animal model of osteoporosis. The animals were intragastrically administered distilled water, XLGB, or different concentrations of PTE for 13 weeks. Body weight, blood biochemical indicators, relative organ coefficients, femoral bone mineral density (BMD), bone biomechanical properties, and bone microarchitecture were examined and analyzed. Additionally, the in vitro effects of PTE on osteoclastic activities were investigated using the RAW 264.7 cell line as an osteoclast differentiation model. The effects of PTE on osteoclast differentiation and the expression of osteoclast-specific genes and proteins were determined. Results: PTE reduced OVX-induced body weight gain after 6 weeks of treatment, and the high-dose exerted a significant effect. High-dose PTE significantly ameliorated OVX-induced estradiol (E2) deficiency. PTE treatment maintained calcium and phosphorus homeostasis and improved other blood biochemical parameters to various degrees. In addition, PTE treatment improved organ coefficients of the femur, uterus, and vagina and improved femoral BMD and bone biomechanical properties. PTE treatment strikingly ameliorated bone microarchitecture. Moreover, in the in vitro studies, osteoclast differentiation using the differentiation cell model was significantly inhibited by PTE without cytotoxic effects. Additionally, PTE efficaciously suppressed the expression of key osteoclast-specific genes and proteins. Conclusion: PTE can ameliorate ovariectomy-induced osteoporosis in rats and suppress osteoclastogenesis in vitro.
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Affiliation(s)
- Titi Liu
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Shihua Ding
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Dan Yin
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Xiangdan Cuan
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Chuanqi Xie
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Huanhuan Xu
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Xuanjun Wang
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Longrun Pu-erh Tea, Yunnan Agricultural UniversityKunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanKunming, China
| | - Jun Sheng
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanKunming, China
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