1
|
Kciuk M, Alam M, Ali N, Rashid S, Głowacka P, Sundaraj R, Celik I, Yahya EB, Dubey A, Zerroug E, Kontek R. Epigallocatechin-3-Gallate Therapeutic Potential in Cancer: Mechanism of Action and Clinical Implications. Molecules 2023; 28:5246. [PMID: 37446908 DOI: 10.3390/molecules28135246] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Cellular signaling pathways involved in the maintenance of the equilibrium between cell proliferation and apoptosis have emerged as rational targets that can be exploited in the prevention and treatment of cancer. Epigallocatechin-3-gallate (EGCG) is the most abundant phenolic compound found in green tea. It has been shown to regulate multiple crucial cellular signaling pathways, including those mediated by EGFR, JAK-STAT, MAPKs, NF-κB, PI3K-AKT-mTOR, and others. Deregulation of the abovementioned pathways is involved in the pathophysiology of cancer. It has been demonstrated that EGCG may exert anti-proliferative, anti-inflammatory, and apoptosis-inducing effects or induce epigenetic changes. Furthermore, preclinical and clinical studies suggest that EGCG may be used in the treatment of numerous disorders, including cancer. This review aims to summarize the existing knowledge regarding the biological properties of EGCG, especially in the context of cancer treatment and prophylaxis.
Collapse
Affiliation(s)
- Mateusz Kciuk
- Department of Molecular Biotechnology and Genetics, University of Lodz, Banacha Street 12/16, 90-237 Lodz, Poland
- Doctoral School of Exact and Natural Sciences, University of Lodz, Banacha Street 12/16, 90-237 Lodz, Poland
| | - Manzar Alam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Nemat Ali
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Summya Rashid
- Department of Pharmacology & Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
| | - Pola Głowacka
- Department of Medical Biochemistry, Medical University of Lodz, Mazowiecka 6/8, 90-001 Lodz, Poland
- Doctoral School of Medical University of Lodz, Hallera 1 Square, 90-700 Lodz, Poland
| | - Rajamanikandan Sundaraj
- Department of Biochemistry, Centre for Drug Discovery, Karpagam Academy of Higher Education, Coimbatore 641021, India
| | - Ismail Celik
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Erciyes University, Kayseri 38280, Turkey
| | - Esam Bashir Yahya
- Bioprocess Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Amit Dubey
- Computational Chemistry and Drug Discovery Division, Quanta Calculus, Greater Noida 201310, India
- Department of Pharmacology, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College and Hospital, Chennai 600077, India
| | - Enfale Zerroug
- LMCE Laboratory, Group of Computational and Pharmaceutical Chemistry, University of Biskra, Biskra 07000, Algeria
| | - Renata Kontek
- Department of Molecular Biotechnology and Genetics, University of Lodz, Banacha Street 12/16, 90-237 Lodz, Poland
| |
Collapse
|
2
|
Jiang L, Wang F, Du M, Xie C, Xie X, Zhang H, Meng X, Li A, Deng T. Encapsulation of catechin into nano-cyclodextrin-metal-organic frameworks: Preparation, characterization, and evaluation of storage stability and bioavailability. Food Chem 2022; 394:133553. [PMID: 35753258 DOI: 10.1016/j.foodchem.2022.133553] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 05/22/2022] [Accepted: 06/19/2022] [Indexed: 11/04/2022]
Abstract
This study, nanoscale α-, β-, γ-cyclodextrin (CD)-metal-organic frameworks (MOFs) were successfully prepared using solvothermal assisted ultrasound method. CD-MOFs were used as nanocarriers to encapsulate catechin (CA), and their encapsulation capacities were evaluated. Encapsulation capacities of CD-MOFs to incorporate CA followed the order: β-CD-MOFs > γ-CD-MOFs > α-CD-MOFs. CA/CD-MOFs were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and differential scanning calorimetry (DSC). DSC and SEM results provided evidence for the formation of CA/CD-MOFs. XRD results indicated the new solid crystalline phases formed in CA/CD-MOFs complex. Results of FT-IR showed that CA was combined with CD-MOFs through hydrogen bonding and van der Waals forces. Current research demonstrated that encapsulation of CA within CD-MOFs provided it against light, oxygen and temperature. Moreover, encapsulation by CD-MOFs improved storage stability and bioavailability of CA. Thus, these CA/CD-MOFs have potential to be used as nutritional supplements and functional foods.
Collapse
Affiliation(s)
- Longwei Jiang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of Soybean Biology of Chinese Education Ministry, Northeast Agricultural University, Harbin 150030, China
| | - Fenghui Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Mengyu Du
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Cancan Xie
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Xinyan Xie
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Huajiang Zhang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Xiangyi Meng
- College of Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Anqi Li
- College of Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Tianyi Deng
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| |
Collapse
|
3
|
Roque-Borda CA, Pereira LP, Guastalli EAL, Soares NM, Mac-Lean PAB, Salgado DD, Meneguin AB, Chorilli M, Vicente EF. HPMCP-Coated Microcapsules Containing the Ctx(Ile 21)-Ha Antimicrobial Peptide Reduce the Mortality Rate Caused by Resistant Salmonella Enteritidis in Laying Hens. Antibiotics (Basel) 2021; 10:616. [PMID: 34064051 PMCID: PMC8224044 DOI: 10.3390/antibiotics10060616] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/14/2021] [Accepted: 05/19/2021] [Indexed: 12/13/2022] Open
Abstract
The constant use of synthetic antibiotics as growth promoters can cause bacterial resistance in chicks. Consequently, the use of these drugs has been restricted in different countries. In recent years, antimicrobial peptides have gained relevance due to their minimal capacity for bacterial resistance and does not generate toxic residues that harm the environment and human health. In this study, a Ctx(Ile21)-Ha antimicrobial peptide was employed, due to its previously reported great antimicrobial potential, to evaluate its application effects in laying chicks challenged with Salmonella Enteritidis, resistant to nalidixic acid and spectinomycin. For this, Ctx(Ile21)-Ha was synthesized, microencapsulated and coated with hypromellose phthalate (HPMCP) to be released in the intestine. Two different doses (20 and 40 mg of Ctx(Ile21)-Ha per kg of isoproteic and isoenergetic poultry feed) were included in the chick's food and administered for 28 days. Antimicrobial activity, effect and response as treatment were evaluated. Statistical results were analyzed in detail and indicate that the formulated Ctx(Ile21)-Ha peptide had a positive and significant effect in relation to the reduction of chick mortality in the first days of life. However, there was moderate evidence (p = 0.07), not considered statistically significant, in the differences in laying chick weight between the control and microencapsulation treatment groups as a function of time. Therefore, the microencapsulated Ctx(Ile21)-Ha antimicrobial peptide can be an interesting and promising option in the substitution of conventional antibiotics.
Collapse
Affiliation(s)
- Cesar Augusto Roque-Borda
- School of Agricultural and Veterinarian Sciences, São Paulo State University (Unesp), Jaboticabal, São Paulo 14884-900, Brazil;
| | - Larissa Pires Pereira
- School of Sciences and Engineering, São Paulo State University (Unesp), Tupã, São Paulo 17602-496, Brazil; (L.P.P.); (P.A.B.M.-L.); (D.D.S.)
| | | | - Nilce Maria Soares
- Poultry Health Specialized Laboratory, Biological Institute, Bastos, São Paulo 17690-000, Brazil; (E.A.L.G.); (N.M.S.)
| | - Priscilla Ayleen Bustos Mac-Lean
- School of Sciences and Engineering, São Paulo State University (Unesp), Tupã, São Paulo 17602-496, Brazil; (L.P.P.); (P.A.B.M.-L.); (D.D.S.)
| | - Douglas D’Alessandro Salgado
- School of Sciences and Engineering, São Paulo State University (Unesp), Tupã, São Paulo 17602-496, Brazil; (L.P.P.); (P.A.B.M.-L.); (D.D.S.)
| | - Andréia Bagliotti Meneguin
- School of Pharmaceutical Sciences, São Paulo State University (Unesp), Araraquara, São Paulo 14801-902, Brazil; (A.B.M.); (M.C.)
| | - Marlus Chorilli
- School of Pharmaceutical Sciences, São Paulo State University (Unesp), Araraquara, São Paulo 14801-902, Brazil; (A.B.M.); (M.C.)
| | - Eduardo Festozo Vicente
- School of Sciences and Engineering, São Paulo State University (Unesp), Tupã, São Paulo 17602-496, Brazil; (L.P.P.); (P.A.B.M.-L.); (D.D.S.)
| |
Collapse
|
4
|
Roque-Borda CA, Silva HRL, Crusca Junior E, Serafim JA, Meneguin AB, Chorilli M, Macedo WC, Teixeira SR, Guastalli EAL, Soares NM, Blair JMA, Pikramenou Z, Vicente EF. Alginate-based microparticles coated with HPMCP/AS cellulose-derivatives enable the Ctx(Ile 21)-Ha antimicrobial peptide application as a feed additive. Int J Biol Macromol 2021; 183:1236-1247. [PMID: 33965488 DOI: 10.1016/j.ijbiomac.2021.05.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/26/2021] [Accepted: 05/02/2021] [Indexed: 12/20/2022]
Abstract
Microencapsulation is a potential biotechnological tool, which can overcome antimicrobial peptides (AMP) instabilities and reduce toxic side effects. Thus, this study evaluates the antibacterial activities of the Ctx(Ile21)-Ha AMP against multidrug-resistant (MDR) and non-resistant bacteria and develop and characterize peptide-loaded microparticles coated with the enteric polymers hydroxypropylmethylcellulose acetate succinate (HPMCAS) and hydroxypropylmethylcellulose phthalate (HPMCP). Ctx(Ile21)-Ha was obtained by solid phase peptide synthesis (SPPS) method, purified and characterized by HPLC and Mass Spectrometry. The peptide exhibited potent antibiotic activities against Salmonella enteritidis, Salmonella typhimurium, Pseudomonas aeruginosa (MDR), Acinetobacter baumannii (MDR), and Staphylococcus aureus (MDR). Ctx(Ile21)-Ha microencapsulation was performed by ionic gelation with high efficiency, maintaining the physical-chemical stability. Ctx(Ile21)-Ha coated-microparticles were characterized by DSC, TGA, FTIR-Raman, XRD and SEM. Hemolytic activity assay demonstrated that hemolysis was decreased up to 95% compared to single molecule. In addition, in vitro release control profile simulating different portions of gastrointestinal tract was performed and showed the microcapsules' ability to protect the peptide and release it in the intestine, aiming pathogen's location, mainly by Salmonella sp. Therefore, use of microencapsulated Ctx(Ile21)-Ha can be allowed as an antimicrobial controller in monogastric animal production as an oral feed additive (antimicrobial controller), being a valuable option for molecules with low therapeutic indexes or high hemolytic rates.
Collapse
Affiliation(s)
- Cesar Augusto Roque-Borda
- São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, São Paulo CEP 14884-900, Brazil
| | - Hanyeny Raiely Leite Silva
- São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, São Paulo CEP 14884-900, Brazil
| | - Edson Crusca Junior
- São Paulo State University (Unesp), Institute of Chemistry, Araraquara, São Paulo CEP 14800-900, Brazil
| | - Jéssica Aparecida Serafim
- São Paulo State University (Unesp), School of Sciences and Engineering, Tupã, São Paulo CEP 17602-496, Brazil
| | - Andréia Bagliotti Meneguin
- São Paulo State University (Unesp), School of Pharmaceutical Sciences, Araraquara, São Paulo CEP 14801-902, Brazil
| | - Marlus Chorilli
- São Paulo State University (Unesp), School of Pharmaceutical Sciences, Araraquara, São Paulo CEP 14801-902, Brazil
| | - Wagner Costa Macedo
- São Paulo State University (Unesp), School of Technology and Sciences, Presidente Prudente, São Paulo CEP 19060-900, Brazil
| | - Silvio Rainho Teixeira
- São Paulo State University (Unesp), School of Technology and Sciences, Presidente Prudente, São Paulo CEP 19060-900, Brazil
| | | | - Nilce Maria Soares
- Poultry Health Specialized Laboratory, Biological Institute, Bastos, São Paulo CEP 17690000, Brazil
| | - Jessica M A Blair
- Institute of Microbiology and Infection, University of Birmingham, Birmingham B15 2TT, UK
| | - Zoe Pikramenou
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, UK
| | - Eduardo Festozo Vicente
- São Paulo State University (Unesp), School of Sciences and Engineering, Tupã, São Paulo CEP 17602-496, Brazil.
| |
Collapse
|
5
|
Applications of Catechins in the Treatment of Bacterial Infections. Pathogens 2021; 10:pathogens10050546. [PMID: 34062722 PMCID: PMC8147231 DOI: 10.3390/pathogens10050546] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 01/08/2023] Open
Abstract
Tea is the second most commonly consumed beverage worldwide. Along with its aromatic and delicate flavors that make it an enjoyable beverage, studies report numerous health advantages in tea consumption, including applications in antimicrobial therapy. The antimicrobial properties of tea are related to catechin and its derivatives, which are natural flavonoids that are abundant in tea. Increasing evidence from in vitro studies demonstrated antimicrobial effects of catechins on both gram-positive and gram-negative bacteria, and proposed direct and indirect therapeutic mechanisms. Additionally, catechins were reported to be effective anti-virulence agents. Furthermore, a number of studies presented evidence that catechins display synergistic effects with certain antibiotics, thus potentiating the activity of antibiotics in resistant bacteria. Despite their numerous beneficial properties, catechins face many challenges in their development as therapeutic agents, including poor absorption, low bioavailability, and rapid degradation. The introduction of nanobiotechnology provides target-based and stable delivery, which enhances catechin bioavailability and optimizes drug efficacy. As further research continues to focus on overcoming the unresolved challenges, catechins are likely to see additional promising applications in our continual fight against bacterial infections.
Collapse
|
6
|
Kamiloglu S, Tomas M, Ozdal T, Capanoglu E. Effect of food matrix on the content and bioavailability of flavonoids. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.10.030] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
7
|
Grgić J, Šelo G, Planinić M, Tišma M, Bucić-Kojić A. Role of the Encapsulation in Bioavailability of Phenolic Compounds. Antioxidants (Basel) 2020; 9:E923. [PMID: 32993196 PMCID: PMC7601682 DOI: 10.3390/antiox9100923] [Citation(s) in RCA: 117] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/19/2020] [Accepted: 09/23/2020] [Indexed: 12/12/2022] Open
Abstract
Plant-derived phenolic compounds have multiple positive health effects for humans attributed to their antioxidative, anti-inflammatory, and antitumor properties, etc. These effects strongly depend on their bioavailability in the organism. Bioaccessibility, and consequently bioavailability of phenolic compounds significantly depend on the structure and form in which they are introduced into the organism, e.g., through a complex food matrix or as purified isolates. Furthermore, phenolic compounds interact with other macromolecules (proteins, lipids, dietary fibers, polysaccharides) in food or during digestion, which significantly influences their bioaccessibility in the organism, but due to the complexity of the mechanisms through which phenolic compounds act in the organism this area has still not been examined sufficiently. Simulated gastrointestinal digestion is one of the commonly used in vitro test for the assessment of phenolic compounds bioaccessibility. Encapsulation is a method that can positively affect bioaccessibility and bioavailability as it ensures the coating of the active component and its targeted delivery to a specific part of the digestive tract and controlled release. This comprehensive review aims to present the role of encapsulation in bioavailability of phenolic compounds as well as recent advances in coating materials used in encapsulation processes. The review is based on 258 recent literature references.
Collapse
Affiliation(s)
| | | | | | | | - Ana Bucić-Kojić
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, F. Kuhača 18, HR-31 000 Osijek, Croatia; (J.G.); (G.Š.); (M.P.); (M.T.)
| |
Collapse
|
8
|
Oketch-Rabah HA, Roe AL, Rider CV, Bonkovsky HL, Giancaspro GI, Navarro V, Paine MF, Betz JM, Marles RJ, Casper S, Gurley B, Jordan SA, He K, Kapoor MP, Rao TP, Sherker AH, Fontana RJ, Rossi S, Vuppalanchi R, Seeff LB, Stolz A, Ahmad J, Koh C, Serrano J, Low Dog T, Ko R. United States Pharmacopeia (USP) comprehensive review of the hepatotoxicity of green tea extracts. Toxicol Rep 2020; 7:386-402. [PMID: 32140423 PMCID: PMC7044683 DOI: 10.1016/j.toxrep.2020.02.008] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 02/04/2020] [Accepted: 02/12/2020] [Indexed: 02/07/2023] Open
Abstract
As part of the United States Pharmacopeia's ongoing review of dietary supplement safety data, a new comprehensive systematic review on green tea extracts (GTE) has been completed. GTEs may contain hepatotoxic solvent residues, pesticide residues, pyrrolizidine alkaloids and elemental impurities, but no evidence of their involvement in GTE-induced liver injury was found during this review. GTE catechin profiles vary significantly with manufacturing processes. Animal and human data indicate that repeated oral administration of bolus doses of GTE during fasting significantly increases bioavailability of catechins, specifically EGCG, possibly involving saturation of first-pass elimination mechanisms. Toxicological studies show a hepatocellular pattern of liver injury. Published adverse event case reports associate hepatotoxicity with EGCG intake amounts from 140 mg to ∼1000 mg/day and substantial inter-individual variability in susceptibility, possibly due to genetic factors. Based on these findings, USP included a cautionary labeling requirement in its Powdered Decaffeinated Green Tea Extract monograph that reads as follows: "Do not take on an empty stomach. Take with food. Do not use if you have a liver problem and discontinue use and consult a healthcare practitioner if you develop symptoms of liver trouble, such as abdominal pain, dark urine, or jaundice (yellowing of the skin or eyes)."
Collapse
Key Words
- ADME, Absorption, distribution, metabolism, and excretion
- ALP, alkaline phosphatase
- ALT, alanine aminotransferase
- AST, aspartate aminotransferase
- AUC, area under the curve
- Bw, body weight
- C, Catechin
- CAM, causality assessment method
- CG, (+)‐catechin‐3‐gallate
- CIH, Concanavalin A-induced hepatitis
- CMC, chemistry, manufacturing, and controls
- COMT, catechol‐O‐methyltransferase
- Camellia sinensis
- ConA, Concanavalin A
- DILI, drug‐induced liver injury
- DILIN, Drug‐Induced Liver Injury Network
- DO, Diversity Outbred
- DS, Dietary Supplement
- DSAE, JS3 USP Dietary Supplements Admission Evaluations Joint Standard-Setting Subcommittee
- Dietary supplements
- EC, (–)‐epicatechin
- ECG, (‐)‐epicatechin‐3‐gallate
- EFSA, European Food Safety Authority
- EGC, (–)‐epigallocatechin
- EGCG, (–)‐epigallocatechin‐3‐gallate
- FDA, United States Food and Drug Administration
- GC, (+)‐gallocatechin
- GCG, (–)‐gallocatechin‐3‐gallate
- GT(E), green tea or green tea extract
- GT, green tea
- GTE, green tea extract
- GTEH, EP Green Tea Extract Hepatotoxicity Expert Panel
- Green tea
- Green tea extract
- HDS, herbal dietary supplement
- HPMC, Hydroxypropyl methylcellulose
- Hepatotoxicity
- LD50, lethal dose, median
- LFT(s), liver function test(s)
- LT(s), Liver test(s)
- Liver injury
- MGTT, Minnesota Green Tea Trial
- MIDS, multi-ingredient dietary supplement
- MRL, maximum residue limit
- NAA, N-acetyl aspartate
- NIDDK, National Institute of Diabetes and Digestive and Kidney Diseases
- NIH, National Institutes of Health
- NOAEL, no observed adverse effect level
- NTP, National Toxicology Program
- OSM, online supplementary material
- PAs, Pyrrolizidine Alkaloids
- PD-1, Programmed death domain-1
- PDGTE, powdered decaffeinated green tea extract
- PK/PD, pharmacokinetics and pharmacodynamics
- RUCAM, Roussel Uclaf Causality Assessment Method
- SIDS, single-ingredient dietary supplement
- TGF-beta, Transforming growth factor beta
- USP, United States Pharmacopeia
- γ-GT, Gamma-glutamyl transferase
Collapse
Affiliation(s)
- Hellen A. Oketch-Rabah
- U.S. Pharmacopeial Convention, Rockville, MD, USA
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
| | - Amy L. Roe
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
- Vice Chair, (USP GTEH EP, 2015-2020 cycle)
| | - Cynthia V. Rider
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
| | - Herbert L. Bonkovsky
- U.S. FDA Liaison to the USP GTEH EP (2015-2020 cycle)
- Section on Gastroenterology & Hepatology, Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
| | - Gabriel I. Giancaspro
- U.S. Pharmacopeial Convention, Rockville, MD, USA
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
| | - Victor Navarro
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
- Expert Members of the Drug Induced Liver Injury Network (DILIN), USA
| | - Mary F. Paine
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA, USA
| | - Joseph M. Betz
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
| | - Robin J. Marles
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
| | - Steven Casper
- U.S. FDA Liaison to the USP GTEH EP (2015-2020 cycle)
| | - Bill Gurley
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
| | - Scott A. Jordan
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
| | - Kan He
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
| | - Mahendra P. Kapoor
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
| | - Theertham P. Rao
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
| | - Averell H. Sherker
- Expert Members of the Drug Induced Liver Injury Network (DILIN), USA
- Liver Diseases Research Branch National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 6707 Democracy Blvd., Bethesda, MD, USA
| | - Robert J. Fontana
- Expert Members of the Drug Induced Liver Injury Network (DILIN), USA
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Simona Rossi
- Expert Members of the Drug Induced Liver Injury Network (DILIN), USA
| | | | - Leonard B. Seeff
- Expert Members of the Drug Induced Liver Injury Network (DILIN), USA
| | - Andrew Stolz
- Expert Members of the Drug Induced Liver Injury Network (DILIN), USA
| | - Jawad Ahmad
- Expert Members of the Drug Induced Liver Injury Network (DILIN), USA
| | - Christopher Koh
- Expert Members of the Drug Induced Liver Injury Network (DILIN), USA
- Liver Diseases Branch, Intramural Research Program, National Institute of Diabetes and Digestive and Kidney Diseases, 10 Center Drive, Building 10, Rm 9B-16, Bethesda, MD, 20892,USA
| | - Jose Serrano
- Expert Members of the Drug Induced Liver Injury Network (DILIN), USA
- Liver Diseases Research Branch National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 6707 Democracy Blvd., Bethesda, MD, USA
| | - Tieraona Low Dog
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
| | - Richard Ko
- United States Pharmacopeia Green Tea Hepatotoxicity Expert Panel (USP GTEH EP, 2015-2020 cycle), Rockville, MD, USA
- Chair (USP GTEH EP, 2015-2020 cycle)
| |
Collapse
|
9
|
Cai ZY, Li XM, Liang JP, Xiang LP, Wang KR, Shi YL, Yang R, Shi M, Ye JH, Lu JL, Zheng XQ, Liang YR. Bioavailability of Tea Catechins and Its Improvement. Molecules 2018; 23:molecules23092346. [PMID: 30217074 PMCID: PMC6225109 DOI: 10.3390/molecules23092346] [Citation(s) in RCA: 138] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/02/2018] [Accepted: 09/12/2018] [Indexed: 02/06/2023] Open
Abstract
Many in vitro studies have shown that tea catechins had vevarious health beneficial effects. However, inconsistent results between in vitro and in vivo studies or between laboratory tests and epidemical studies are observed. Low bioavailability of tea catechins was an important factor leading to these inconsistencies. Research advances in bioavailability studies involving absorption and metabolic biotransformation of tea catechins were reviewed in the present paper. Related techniques for improving their bioavailability such as nanostructure-based drug delivery system, molecular modification, and co-administration of catechins with other bioactives were also discussed.
Collapse
Affiliation(s)
- Zhuo-Yu Cai
- Tea Research Institute, Zhejiang University, Hangzhou 310058, China.
| | - Xu-Min Li
- Tea Research Institute, Zhejiang University, Hangzhou 310058, China.
| | - Jin-Pei Liang
- Intellectual Property Office of Lanshan District, Rizhao 543003, China.
| | - Li-Ping Xiang
- National Tea and Tea Product Quality Supervision and Inspection Center (Guizhou), Zunyi 563100, China.
| | - Kai-Rong Wang
- Ningbo Extension Station of Forestry & Speciality Technology, Ningbo 315012, China.
| | - Yun-Long Shi
- Tea Research Institute, Zhejiang University, Hangzhou 310058, China.
| | - Rui Yang
- Tea Research Institute, Zhejiang University, Hangzhou 310058, China.
| | - Meng Shi
- Tea Research Institute, Zhejiang University, Hangzhou 310058, China.
| | - Jian-Hui Ye
- Tea Research Institute, Zhejiang University, Hangzhou 310058, China.
| | - Jian-Liang Lu
- Tea Research Institute, Zhejiang University, Hangzhou 310058, China.
| | - Xin-Qiang Zheng
- Tea Research Institute, Zhejiang University, Hangzhou 310058, China.
| | - Yue-Rong Liang
- Tea Research Institute, Zhejiang University, Hangzhou 310058, China.
| |
Collapse
|
10
|
Zhang G, Sun Y, Guo Y, Liu J, Wu L, Lin J. The application of pomelo peel as a carrier for adsorption of epigallocatechin-3-gallate. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:4135-4141. [PMID: 29393516 DOI: 10.1002/jsfa.8931] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 12/26/2017] [Accepted: 01/27/2018] [Indexed: 06/07/2023]
Abstract
BACKGROUND Pomelo (Citrus grandis) is the largest citrus fruit, the peel of which is a well-known agricultural wastes. Disposal of pomelo peel after consumption is a serious environment problem. As a natural, versatile bio-absorbent, pomelo peel has shown excellent adsorption capacity for several pollutants, attributed to its micro-pores; however, there is no relevant report on its adsorption capacity for natural products or food ingredients. The ability of pomelo peel to adsorb epigallocatechin-3-gallate (EGCG) was examined in this study. The physicochemical characterizations of pomelo peel were determined by Fourier transform infrared spectroscopy, scanning electron microscopy and high-performance liquid chromatography. The adsorption process of EGCG onto pomelo peel from aqueous solution was carried out at a range of concentrations (50-800 mg L-1 ) and temperatures (25, 40 and 55 °C). RESULTS The main components of pomelo peel are composed of dietary fiber, which provide sufficient adsorption sites during the adsorption process. The adsorption of EGCG onto pomelo peel showed excellent fitness with a pseudo-second-order model. Both Langmuir and Freundlich models were able to describe the isothermal adsorption of EGCG onto pomelo peel. The results of thermodynamic analysis suggested that adsorption is spontaneous and endothermic in nature, and that the process is likely to be dominated by a physisorption mechanism. CONCLUSION The results of this study indicate that pomelo peel has potential adsorption capacity for EGCG, which can be used as an effective, low-cost carrier for delivery of natural products in functional food and dietary supplement applications. © 2018 Society of Chemical Industry.
Collapse
Affiliation(s)
- Guoying Zhang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yun Sun
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yaling Guo
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Tea Science in Universities of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jianghong Liu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Liangyu Wu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jinke Lin
- College of Anxi Tea, Fujian Agriculture and Forestry University, Quanzhou, China
| |
Collapse
|
11
|
Huang H, Yu Y, Hu Y, He X, Usta OB, Yarmush ML. Generation and manipulation of hydrogel microcapsules by droplet-based microfluidics for mammalian cell culture. LAB ON A CHIP 2017; 17:1913-1932. [PMID: 28509918 PMCID: PMC5548188 DOI: 10.1039/c7lc00262a] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Hydrogel microcapsules provide miniaturized and biocompatible niches for three-dimensional (3D) in vitro cell culture. They can be easily generated by droplet-based microfluidics with tunable size, morphology, and biochemical properties. Therefore, microfluidic generation and manipulation of cell-laden microcapsules can be used for 3D cell culture to mimic the in vivo environment towards applications in tissue engineering and high throughput drug screening. In this review of recent advances mainly since 2010, we will first introduce general characteristics of droplet-based microfluidic devices for cell encapsulation with an emphasis on the fluid dynamics of droplet breakup and internal mixing as they directly influence microcapsule's size and structure. We will then discuss two on-chip manipulation strategies: sorting and extraction from oil into aqueous phase, which can be integrated into droplet-based microfluidics and significantly improve the qualities of cell-laden hydrogel microcapsules. Finally, we will review various applications of hydrogel microencapsulation for 3D in vitro culture on cell growth and proliferation, stem cell differentiation, tissue development, and co-culture of different types of cells.
Collapse
Affiliation(s)
- Haishui Huang
- Center for Engineering in Medicine, Massachusetts General Hospital,
Harvard Medical School and Shriners Hospitals for Children, Boston, Massachusetts
02114, United States
| | - Yin Yu
- Center for Engineering in Medicine, Massachusetts General Hospital,
Harvard Medical School and Shriners Hospitals for Children, Boston, Massachusetts
02114, United States
| | - Yong Hu
- Center for Engineering in Medicine, Massachusetts General Hospital,
Harvard Medical School and Shriners Hospitals for Children, Boston, Massachusetts
02114, United States
| | - Xiaoming He
- Department of Biomedical Engineering, The Ohio State University,
Columbus, USA
| | - O. Berk Usta
- Center for Engineering in Medicine, Massachusetts General Hospital,
Harvard Medical School and Shriners Hospitals for Children, Boston, Massachusetts
02114, United States
| | - Martin L. Yarmush
- Center for Engineering in Medicine, Massachusetts General Hospital,
Harvard Medical School and Shriners Hospitals for Children, Boston, Massachusetts
02114, United States
- Department of Biomedical Engineering, Rutgers University,
Piscataway, New Jersey 08854, United States
| |
Collapse
|
12
|
Xiang LP, Wang A, Ye JH, Zheng XQ, Polito CA, Lu JL, Li QS, Liang YR. Suppressive Effects of Tea Catechins on Breast Cancer. Nutrients 2016; 8:nu8080458. [PMID: 27483305 PMCID: PMC4997373 DOI: 10.3390/nu8080458] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 07/20/2016] [Accepted: 07/22/2016] [Indexed: 12/15/2022] Open
Abstract
Tea leaf (Camellia sinensis) is rich in catechins, which endow tea with various health benefits. There are more than ten catechin compounds in tea, among which epigallocatechingallate (EGCG) is the most abundant. Epidemiological studies on the association between tea consumption and the risk of breast cancer were summarized, and the inhibitory effects of tea catechins on breast cancer, with EGCG as a representative compound, were reviewed in the present paper. The controversial results regarding the role of tea in breast cancer and areas for further study were discussed.
Collapse
Affiliation(s)
- Li-Ping Xiang
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
- National Tea and Tea product Quality Supervision and Inspection Center (Guizhou), Zunyi 563100, China.
| | - Ao Wang
- National Tea and Tea product Quality Supervision and Inspection Center (Guizhou), Zunyi 563100, China.
| | - Jian-Hui Ye
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
| | - Xin-Qiang Zheng
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
| | - Curt Anthony Polito
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
| | - Jian-Liang Lu
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
| | - Qing-Sheng Li
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
| | - Yue-Rong Liang
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
- National Tea and Tea product Quality Supervision and Inspection Center (Guizhou), Zunyi 563100, China.
| |
Collapse
|