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Duan X, Bai W, Hu J, Wu J, Tan H, Wang F, Lang X, Wang B, Hu J. Inhibitory effect of flavonoids on multidrug and toxin extrusion protein 1 function: Implications for food/herb-drug interaction and drug-induced kidney injury. J Appl Toxicol 2024; 44:1388-1402. [PMID: 38760888 DOI: 10.1002/jat.4628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/20/2024]
Abstract
Multidrug and toxin extrusion protein 1 (MATE1), an efflux transporter mainly expressed in renal proximal tubules, mediates the renal secretion of organic cationic drugs. The inhibition of MATE1 will impair the excretion of drugs into the tubular lumen, leading to the accumulation of nephrotoxic drugs in the kidney and consequently potentiating nephrotoxicity. Screening and identifying potent MATE1 inhibitors can predict or minimize the risk of drug-induced kidney injury. Flavonoids, a group of polyphenols commonly found in foodstuffs and herbal products, have been reported to cause transporter-mediated food/herb-drug interactions. Our objective was to investigate the inhibitory effects of flavonoids on MATE1 in vitro and in vivo and to assess the effects of flavonoids on cisplatin-induced kidney injury. Thirteen flavonoids exhibited significant transport activity inhibition (>50%) on MATE1 in MATE1-MDCK cells. Among them, the six strongest flavonoid inhibitors, including irisflorentin, silymarin, isosilybin, sinensetin, tangeretin, and nobiletin, markedly increased cisplatin cytotoxicity in these cells. In cisplatin-induced in vivo renal injury models, irisflorentin, isosilybin, and sinensetin also increased serum creatinine and blood urea nitrogen levels to different degrees, especially irisflorentin, which exhibited the most potent nephrotoxicity with cisplatin. The pharmacophore model indicated that the hydrogen bond acceptors at the 3, 5, and 7 positions may play a critical role in the inhibitory effect of flavonoids on MATE1. Our findings provide helpful information for predicting the potential risks of flavonoid-containing food/herb-drug interactions and avoiding the exacerbation of drug-induced kidney injury via MATE1 mediation.
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Affiliation(s)
- Xiaoyan Duan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Wanting Bai
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jiahuan Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jinjin Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Huixin Tan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Fenghe Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xuli Lang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Baolian Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jinping Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Campanelli G, Francois E, Parupathi P, Devarakonda LS, Yang C, Kumar A, Levenson AS. The Therapeutic Efficacy and Mechanism of Action of Gnetin C, a Natural Compound from the Melinjo Plant, in a Preclinical Mouse Model of Advanced Prostate Cancer. Cancers (Basel) 2024; 16:1344. [PMID: 38611022 PMCID: PMC11010822 DOI: 10.3390/cancers16071344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/20/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
The metastasis-associated protein 1/protein kinase B (MTA1/AKT) signaling pathway has been shown to cooperate in promoting prostate tumor growth. Targeted interception strategies by plant-based polyphenols, specifically stilbenes, have shown great promise against MTA1-mediated prostate cancer progression. In this study, we employed a prostate-specific transgenic mouse model with MTA1 overexpression on the background of phosphatase and tensin homolog (Pten) null (R26MTA1; Ptenf/f) and PC3M prostate cancer cells which recapitulate altered molecular pathways in advanced prostate cancer. Mechanistically, the MTA1 knockdown or pharmacological inhibition of MTA1 by gnetin C (dimer resveratrol) in cultured PC3M cells resulted in the marked inactivation of mammalian target of rapamycin (mTOR) signaling. In vivo, mice tolerated a daily intraperitoneal treatment of gnetin C (7 mg/kg bw) for 12 weeks without any sign of toxicity. Treatment with gnetin C markedly reduced cell proliferation and angiogenesis and promoted apoptosis in mice with advanced prostate cancer. Further, in addition to decreasing MTA1 levels in prostate epithelial cells, gnetin C significantly reduced mTOR signaling activity in prostate tissues, including the activity of mTOR-target proteins: p70 ribosomal protein S6 kinase (S6K) and eukaryotic translational initiation factor 4E (elF4E)-binding protein 1 (4EBP1). Collectively, these findings established gnetin C as a new natural compound with anticancer properties against MTA1/AKT/mTOR-activated prostate cancer, with potential as monotherapy and as a possible adjunct to clinically approved mTOR pathway inhibitors in the future.
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Affiliation(s)
- Gisella Campanelli
- Department of Veterinary Biomedical Sciences, College of Veterinary Medicine, Long Island University, Brookville, NY 11548, USA; (G.C.); (C.Y.)
| | - Ekniel Francois
- Division of Pharmaceutical Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA; (E.F.); (P.P.); (L.S.D.)
| | - Prashanth Parupathi
- Division of Pharmaceutical Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA; (E.F.); (P.P.); (L.S.D.)
| | - Lakshmi Sirisha Devarakonda
- Division of Pharmaceutical Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA; (E.F.); (P.P.); (L.S.D.)
| | - Ching Yang
- Department of Veterinary Biomedical Sciences, College of Veterinary Medicine, Long Island University, Brookville, NY 11548, USA; (G.C.); (C.Y.)
| | - Avinash Kumar
- Division of Pharmaceutical Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA; (E.F.); (P.P.); (L.S.D.)
| | - Anait S. Levenson
- Department of Veterinary Biomedical Sciences, College of Veterinary Medicine, Long Island University, Brookville, NY 11548, USA; (G.C.); (C.Y.)
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3
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Pisoschi AM, Iordache F, Stanca L, Cimpeanu C, Furnaris F, Geicu OI, Bilteanu L, Serban AI. Comprehensive and critical view on the anti-inflammatory and immunomodulatory role of natural phenolic antioxidants. Eur J Med Chem 2024; 265:116075. [PMID: 38150963 DOI: 10.1016/j.ejmech.2023.116075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/17/2023] [Accepted: 12/18/2023] [Indexed: 12/29/2023]
Abstract
The immune response encompasses innate and adaptive immunity, each with distinct and specific activities. The innate immune system is constituted by phagocytic cells, macrophages, monocytes and neutrophils, the cascade system, and different classes of receptors such as toll-like receptors that are exploited by the innate immune cells. The adaptive immune system is antigen-specific, encompassing memory lymphocytes and the corresponding specific receptors. Inflammation is understood as an activation of different signaling pathways such as toll-like receptors or nuclear factor kappa-light-chain-enhancer of activated B cells, with an increase in nitric oxide, inflammatory cytokines and chemokines. Increased oxidative stress has been identified as main source of chronic inflammation. Phenolic antioxidants modulate the activities of lymphocytes and macrophages by impacting cytokines and nitric oxide release, exerting anti-inflammatory effect. The nuclear-factor kappa-light-chain-enhancer of activated B cells signaling pathway and the mitogen-activated protein kinase pathway are targeted, alongside an increase in nuclear factor erythroid 2-related factor mediated antioxidant response, triggering the activity of antioxidant enzymes. The inhibitive potential on phospholipase A2, cyclooxygenase and lipoxygenase in the arachidonic acid pathway, and the subsequent reduction in prostaglandin and leukotriene generation, reveals the potential of phenolics as inflammation antagonists. The immunomodulative potential encompasses the capacity to interfere with proinflammatory cytokine synthesis and with the expression of the corresponding genes. A diet rich in antioxidants can result in prevention of inflammation-related pathologies. More investigations are necessary to establish the role of these antioxidants in therapy. The appropriate delivery system and the prooxidant effects exhibited at large doses, or in the presence of heavy metal cations should be regarded.
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Affiliation(s)
- Aurelia Magdalena Pisoschi
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, Department Preclinical Sciences, 105 Splaiul Independentei, 050097, Bucharest, Romania.
| | - Florin Iordache
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, Department Preclinical Sciences, 105 Splaiul Independentei, 050097, Bucharest, Romania
| | - Loredana Stanca
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, Department Preclinical Sciences, 105 Splaiul Independentei, 050097, Bucharest, Romania
| | - Carmen Cimpeanu
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Land Reclamation and Environmental Engineering, 59 Marasti Blvd, 011464, Bucharest, Romania
| | - Florin Furnaris
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, Department Preclinical Sciences, 105 Splaiul Independentei, 050097, Bucharest, Romania
| | - Ovidiu Ionut Geicu
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, Department Preclinical Sciences, 105 Splaiul Independentei, 050097, Bucharest, Romania; University of Bucharest, Faculty of Biology, Department Biochemistry and Molecular Biology, 91-95 Splaiul Independentei, 050095, Bucharest, Romania
| | - Liviu Bilteanu
- Molecular Nanotechnology Laboratory, National Institute for Research and Development in Microtechnologies, 126A, Erou Iancu Nicolae Street, 077190, Bucharest, Romania
| | - Andreea Iren Serban
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, Department Preclinical Sciences, 105 Splaiul Independentei, 050097, Bucharest, Romania; University of Bucharest, Faculty of Biology, Department Biochemistry and Molecular Biology, 91-95 Splaiul Independentei, 050095, Bucharest, Romania
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Brown K, Theofanous D, Britton RG, Aburido G, Pepper C, Sri Undru S, Howells L. Resveratrol for the Management of Human Health: How Far Have We Come? A Systematic Review of Resveratrol Clinical Trials to Highlight Gaps and Opportunities. Int J Mol Sci 2024; 25:747. [PMID: 38255828 PMCID: PMC10815776 DOI: 10.3390/ijms25020747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/01/2024] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
Resveratrol has long been proposed as being beneficial to human health across multiple morbidities, yet there is currently no conclusive clinical evidence to advocate its recommendation in any healthcare setting. A large cohort with high-quality clinical data and clearly defined biomarkers or endpoints are required to draw meaningful conclusions. This systematic review compiles every clinical trial conducted using a defined dose of resveratrol in a purified form across multiple morbidities to highlight the current 'state-of-play' and knowledge gaps, informing future trial designs to facilitate the realisation of resveratrol's potential benefits to human health. Over the last 20 years, there have been almost 200 studies evaluating resveratrol across at least 24 indications, including cancer, menopause symptoms, diabetes, metabolic syndrome, and cardiovascular disease. There are currently no consensus treatment regimens for any given condition or endpoint, beyond the fact that resveratrol is generally well-tolerated at a dose of up to 1 g/day. Additionally, resveratrol consistently reduces inflammatory markers and improves aspects of a dysregulated metabolism. In conclusion, over the last 20 years, the increasing weight of clinical evidence suggests resveratrol can benefit human health, but more large, high-quality clinical trials are required to transition this intriguing compound from health food shops to the clinic.
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Affiliation(s)
- Karen Brown
- Leicester Cancer Research Centre, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester Royal Infirmary, Leicester LE2 7LX, UK; (D.T.); (R.G.B.); (G.A.); (S.S.U.); (L.H.)
| | - Despoina Theofanous
- Leicester Cancer Research Centre, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester Royal Infirmary, Leicester LE2 7LX, UK; (D.T.); (R.G.B.); (G.A.); (S.S.U.); (L.H.)
| | - Robert G. Britton
- Leicester Cancer Research Centre, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester Royal Infirmary, Leicester LE2 7LX, UK; (D.T.); (R.G.B.); (G.A.); (S.S.U.); (L.H.)
| | - Grandezza Aburido
- Leicester Cancer Research Centre, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester Royal Infirmary, Leicester LE2 7LX, UK; (D.T.); (R.G.B.); (G.A.); (S.S.U.); (L.H.)
| | - Coral Pepper
- Odames Library, Victoria Building, Leicester Royal Infirmary, Leicester LE1 5WW, UK
| | - Shanthi Sri Undru
- Leicester Cancer Research Centre, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester Royal Infirmary, Leicester LE2 7LX, UK; (D.T.); (R.G.B.); (G.A.); (S.S.U.); (L.H.)
| | - Lynne Howells
- Leicester Cancer Research Centre, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester Royal Infirmary, Leicester LE2 7LX, UK; (D.T.); (R.G.B.); (G.A.); (S.S.U.); (L.H.)
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5
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Campanelli G, Deabel RA, Puaar A, Devarakonda LS, Parupathi P, Zhang J, Waxner N, Yang C, Kumar A, Levenson AS. Molecular Efficacy of Gnetin C as Dual-Targeted Therapy for Castrate-Resistant Prostate Cancer. Mol Nutr Food Res 2023; 67:e2300479. [PMID: 37863824 DOI: 10.1002/mnfr.202300479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/29/2023] [Indexed: 10/22/2023]
Abstract
SCOPE Resistance of castrate-resistant prostate cancer (CRPC) to enzalutamide (Enz) involves the expression of constitutively active androgen receptor splice variant (AR-V7). In addition to altered AR pathways, CRPC is characterized by "non-AR-driven" signaling, which includes an overexpression of metastasis-associated protein 1 (MTA1). Combining natural compounds with anticancer drugs may enhance drug effectiveness while reducing adverse effects. In this study, the in vitro and in vivo anticancer effects of Gnetin C (GnC) alone and in combination with Enz against CRPC are examined. METHODS AND RESULTS The effects of GnC alone and in combination with Enz are assessed by cell viability, clonogenic survival, cell migration, and AR and MTA1 expression using 22Rv1 cells. The tumor growth in vivo is assessed by bioluminescent imaging, western blots, RT-PCR, and IHC. GnC alone and in combined treatment inhibit cell viability, clonogenic survival and migration, and AR and MTA1 expression in 22Rv1 cells. The underlying AR- and MTA1-targeted anticancer mechanisms of treatments in vivo involve inhibition of proliferation and angiogenesis, and induction of apoptosis. CONCLUSION The findings demonstrate that GnC alone and GnC combined with Enz effectively inhibits AR- and MTA1-promoted tumor-progression in advanced CRPC, which indicates its potential as a novel therapeutic approach for CRPC.
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Affiliation(s)
- Gisella Campanelli
- Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY, USA
| | - Rabab Al Deabel
- School of Health Professions and Nursing, Long Island University, Brookville, NY, USA
| | - Anand Puaar
- Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY, USA
| | | | - Prashanth Parupathi
- Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY, USA
| | | | - Noah Waxner
- College of Veterinary Medicine, Long Island University, Brookville, NY, USA
| | - Ching Yang
- College of Veterinary Medicine, Long Island University, Brookville, NY, USA
| | - Avinash Kumar
- Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY, USA
| | - Anait S Levenson
- College of Veterinary Medicine, Long Island University, Brookville, NY, USA
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6
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Tan H, Wang F, Hu J, Duan X, Bai W, Wang X, Wang B, Su Y, Hu J. Inhibitory interaction of flavonoids with organic cation transporter 2 and their structure-activity relationships for predicting nephroprotective effects. J Appl Toxicol 2023; 43:1421-1435. [PMID: 37057715 DOI: 10.1002/jat.4474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/28/2023] [Accepted: 04/11/2023] [Indexed: 04/15/2023]
Abstract
Organic cation transporter 2 (OCT2) is mainly responsible for the renal secretion of various cationic drugs, closely associated with drug-induced acute kidney injury (AKI). Screening and identifying potent OCT2 inhibitors with little toxicity in natural products in reducing OCT2-mediated AKI is of great value. Flavonoids are enriched in various vegetables, fruits, and herbal products, and some were reported to produce transporter-mediated drug-drug interactions. This study aimed to screen potential inhibitors of OCT2 from 96 flavonoids, assess the nephroprotective effects on cisplatin-induced kidney injury, and clarify the structure-activity relationships of flavonoids with OCT2. Ten flavonoids exhibited significant inhibition (>50%) on OCT2 in OCT2-HEK293 cells. Among them, the six most potent flavonoid inhibitors, including pectolinarigenin, biochanin A, luteolin, chrysin, 6-hydroxyflavone, and 6-methylflavone markedly decreased cisplatin-induced cytotoxicity. Moreover, in cisplatin-induced renal injury models, they also reduced serum blood urea nitrogen (BUN) and creatinine levels to different degrees, the best of which was 6-methylflavone. The pharmacophore model clarified that the aromatic ring, hydrogen bond acceptors, and hydrogen bond donors might play a vital role in the inhibitory effect of flavonoids on OCT2. Thus, our findings would pave the way to predicting the potential risks of flavonoid-containing food/herb-drug interactions in humans and optimizing flavonoid structure to alleviate OCT2-related AKI.
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Affiliation(s)
- Huixin Tan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Fenghe Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Jiahuan Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Xiaoyan Duan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Wanting Bai
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Xinbo Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Baolian Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Yan Su
- Department of Health Management and Service, Cangzhou Medical College, Hebei, 061001, China
| | - Jinping Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Department of Drug Metabolism, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
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7
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Kabir T, Yoshiba H, Agista AZ, Sultana H, Ohsaki Y, Yeh CL, Hirakawa R, Tani H, Ikuta T, Nochi T, Yang SC, Shirakawa H. Protective Effects of Gnetin C from Melinjo Seed Extract against High-Fat Diet-Induced Hepatic Steatosis and Liver Fibrosis in NAFLD Mice Model. Nutrients 2023; 15:3888. [PMID: 37764672 PMCID: PMC10538079 DOI: 10.3390/nu15183888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD), the most common form of chronic liver disease, can progress to hepatic steatosis, inflammation, and advanced fibrosis, increasing the risk of cirrhosis. Resveratrol, a natural polyphenol with antioxidant and anti-inflammatory properties, is beneficial in treating multiple metabolic diseases. Gnetin C, a resveratrol derivative obtained from Melinjo seed extract (MSE), shares similar health-promoting properties. We investigated the role of gnetin C in preventing NAFLD in a mouse model and compared it with resveratrol. Male C57BL/6J mice were fed a control diet (10% calories from fat), a high-fat choline-deficient (HFCD) diet (46% calories from fat) and HFCD diet supplemented with gnetin C (150 mg/kg BW·day-1) or resveratrol (150 mg/kg BW·day-1) for 12 weeks. Gnetin C supplementation reduced body and liver weight, and improved blood glucose levels and insulin sensitivity. Both gnetin C- and resveratrol reduced hepatic steatosis, with gnetin C also decreasing liver lipid content. Gnetin C and resveratrol ameliorated HFCD diet-induced hepatic fibrosis. The mRNA expression results, and western blot analyses showed that gnetin C and, to some extent, resveratrol downregulated fibrosis markers in the TGF-β1 signaling pathway, indicating a possible safeguarding mechanism against NAFLD. These results suggest that gnetin C supplementation may protect against lipid deposition and hepatic fibrosis.
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Affiliation(s)
- Tohfa Kabir
- Laboratory of Nutrition, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Haruki Yoshiba
- Laboratory of Nutrition, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Afifah Zahra Agista
- Laboratory of Nutrition, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Halima Sultana
- Laboratory of Nutrition, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Yusuke Ohsaki
- Laboratory of Nutrition, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
- International Education and Research Center for Food Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Chiu-Li Yeh
- Laboratory of Nutrition, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 11031, Taiwan
| | - Ryota Hirakawa
- Laboratory of Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Hiroko Tani
- Institute for Bee Products and Health Science, Yamada Bee Company, Inc., Okayama 708-0393, Japan
| | - Tomoki Ikuta
- Institute for Bee Products and Health Science, Yamada Bee Company, Inc., Okayama 708-0393, Japan
| | - Tomonori Nochi
- International Education and Research Center for Food Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
- Laboratory of Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Suh-Ching Yang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 11031, Taiwan
| | - Hitoshi Shirakawa
- Laboratory of Nutrition, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
- International Education and Research Center for Food Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
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8
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Duta-Bratu CG, Nitulescu GM, Mihai DP, Olaru OT. Resveratrol and Other Natural Oligomeric Stilbenoid Compounds and Their Therapeutic Applications. PLANTS (BASEL, SWITZERLAND) 2023; 12:2935. [PMID: 37631147 PMCID: PMC10459741 DOI: 10.3390/plants12162935] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/01/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023]
Abstract
The use of natural compounds as an alternative to synthetic molecules has become a significant subject of interest in recent decades. Stilbenoids are a group of phenolic compounds found in many plant species and they have recently gained the focus of a multitude of studies in medicine and chemistry, resveratrol being the most representative molecule. In this review, we focused on the research that illustrates the therapeutic potential of this class of natural molecules considering various diseases with higher incidence rates. PubChem database was searched for bioactivities of natural stilbenoids, while several keywords (i.e., "stilbenoids", "stilbenoid anticancer") were used to query PubMed database for relevant studies. The diversity and the simplicity of stilbenes' chemical structures together with the numerous biological sources are key elements that can simplify both the isolation of these compounds and the drug design of novel bioactive molecules. Resveratrol and other related compounds are heterogeneously distributed in plants and are mainly found in grapes and wine. Natural stilbenes were shown to possess a wide range of biological activities, such as antioxidant, anti-inflammatory, antihyperglycemic, cardioprotective, neuroprotective, and antineoplastic properties. While resveratrol is widely investigated for its benefits in various disorders, further studies are warranted to properly harness the therapeutic potential of less popular stilbenoid compounds.
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Affiliation(s)
| | - George Mihai Nitulescu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania (O.T.O.)
| | - Dragos Paul Mihai
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania (O.T.O.)
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Parupathi P, Campanelli G, Deabel RA, Puaar A, Devarakonda LS, Kumar A, Levenson AS. Gnetin C Intercepts MTA1-Associated Neoplastic Progression in Prostate Cancer. Cancers (Basel) 2022; 14:cancers14246038. [PMID: 36551523 PMCID: PMC9775406 DOI: 10.3390/cancers14246038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 12/02/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022] Open
Abstract
Nutritional chemoprevention is particularly suitable for prostate cancer. Gnetin C, a resveratrol dimer found abundantly in the melinjo plant (Gnetum gnemon), may possess more potent biological properties compared to other stilbenes. We examined the effects of gnetin C in a high-risk premalignant transgenic mouse model overexpressing tumor-promoting metastasis-associated protein 1 (MTA1) on the background of Pten heterozygosity (R26MTA1; Pten+/f; Pb-Cre+). Mice were fed diets supplemented with the following compounds: pterostilbene (70 mg/kg diet); gnetin C, high dose (70 mg/kg diet); and gnetin C, low dose (35 mg/kg diet). Prostate tissues were isolated after 17 weeks and examined for histopathology and molecular markers. Serum was analyzed for cytokine expression. Gnetin C-supplemented diets substantially delayed the progression of preneoplastic lesions compared to other groups. Prostate tissues from gnetin C-fed mice showed favorable histopathology, with decreased severity and number of prostatic intraepithelial neoplasia (PIN) foci, reduced proliferation, and angiogenesis. A decreased level of MTA1, concurrent with the trend of increasing phosphatase and tensin homolog expression and reduced interleukin 2 (IL-2) levels in sera, were also detected in gnetin C-fed mice. Importantly, gnetin C did not exert any visible toxicity in mice. Our findings demonstrate that a gnetin C-supplemented diet effectively blocks MTA1-promoted tumor progression activity in high-risk premalignant prostate cancer, which indicates its potential as a novel form of nutritional interception for prostate cancer chemoprevention.
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Affiliation(s)
- Prashanth Parupathi
- Division of Pharmaceutical Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA
| | - Gisella Campanelli
- Division of Pharmaceutical Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA
| | - Rabab Al Deabel
- Department of Biomedical Sciences, School of Health Professions and Nursing, Long Island University, Brookville, NY 11548, USA
| | - Anand Puaar
- Division of Pharmaceutical Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA
| | - Lakshmi Sirisha Devarakonda
- Division of Pharmaceutical Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA
| | - Avinash Kumar
- Division of Pharmaceutical Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA
| | - Anait S. Levenson
- Department of Biomedical Sciences, College of Veterinary Medicine, Long Island University, Brookville, NY 11548, USA
- Correspondence:
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10
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Oniki K. Multifaceted Clinical Research on Obesity-related Disease Prevention Focusing on the <i>DsbA-L</i> Gene. YAKUGAKU ZASSHI 2022; 142:1177-1183. [DOI: 10.1248/yakushi.22-00128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kentaro Oniki
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
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11
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Ikeda E, Tanaka D, Glogauer M, Tenenbaum HC, Ikeda Y. Healing effects of monomer and dimer resveratrol in a mouse periodontitis model. BMC Oral Health 2022; 22:460. [PMID: 36319994 PMCID: PMC9623911 DOI: 10.1186/s12903-022-02499-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
Abstract
Background The antioxidant and anti-inflammatory effects of resveratrol have been reported previously. Particularly, monomeric trans-resveratrol has been demonstrated to produce positive effects in various pathological processes. We reported previously that resveratrol dimer-rich melinjo extract, among others, caused bone healing, decreased local oxidative damage, and activated antioxidants nuclear factor erythroid 2-related factor 2 (Nrf2) pathways in a mouse model of experimentally induced periodontitis (EP). This study aimed to compare the bone-healing effects of the resveratrol monomer to the resveratrol dimer (gnetin C found in melinjo seed extract) in a model of EP and investigate the involvement of Nrf2 for effects of either form of resveratrol. Methods EP was induced experimentally in mice by placement of a 9 − 0 silk ligature around the left second molar. Mice received 10 mg/kg of either resveratrol monomer or dimer intraperitoneally on day 15 after induction of EP. The bone level around the ligated teeth was measured over time, and levels of proinflammatory cytokines and oxidative stress were measured in the periodontal tissues around the ligated teeth. Results Resveratrol dimer induced greater periodontal bone healing as compared to that related to use of the resveratrol monomer. It appears that healing of periodontal bone in either group was likely related to master regulation of antioxidant nuclear factor erythroid 2-related factor 2 (Nrf2) significantly. Downregulation of IL-1β, a proinflammatory cytokine was also demonstrated in the resveratrol dimer group. Conclusion Our results showed that administration of resveratrol in either dimer form or the monomeric form reduced periodontal bone loss with greater inhibition of bone loss being demonstrated in the dimer group as compared to the monomer group and that these effects were related in all likelihood to decreased oxidative stress and hence reduction in local inflammation.
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Affiliation(s)
- Eri Ikeda
- grid.265073.50000 0001 1014 9130Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, 113-8549 Bunkyo, Tokyo, Japan ,grid.265073.50000 0001 1014 9130Department of Molecular Immunology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, 113-8549 Bunkyo, Tokyo, Japan
| | - Daiki Tanaka
- grid.265073.50000 0001 1014 9130Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, 113-8549 Bunkyo, Tokyo, Japan
| | - Michael Glogauer
- grid.17063.330000 0001 2157 2938Faculty of Dentistry, University of Toronto, 124 Edward St, M5G 1G6 Toronto, ON Canada ,grid.415224.40000 0001 2150 066XDepartment of Dental Oncology and Maxillofacial Prosthetics University Health Network - Princess Margaret Cancer Centre, 610 University Avenue, M5G 2M9 Toronto, ON Canada
| | - Howard C Tenenbaum
- grid.17063.330000 0001 2157 2938Faculty of Dentistry, University of Toronto, 124 Edward St, M5G 1G6 Toronto, ON Canada ,grid.416166.20000 0004 0473 9881Centre for Advanced Dental Research and Care, Department of Dentistry, Mount Sinai Hospital, 600 University Avenue, M5G 1X5 Toronto, ON Canada
| | - Yuichi Ikeda
- grid.265073.50000 0001 1014 9130Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, 113-8549 Bunkyo, Tokyo, Japan
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12
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An Overview of Herbal-Based Antidiabetic Drug Delivery Systems: Focus on Lipid- and Inorganic-Based Nanoformulations. Pharmaceutics 2022; 14:pharmaceutics14102135. [PMID: 36297570 PMCID: PMC9610297 DOI: 10.3390/pharmaceutics14102135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/29/2022] [Accepted: 10/05/2022] [Indexed: 11/05/2022] Open
Abstract
Diabetes is a metabolic pathology with chronic high blood glucose levels that occurs when the pancreas does not produce enough insulin or the body does not properly use the insulin it produces. Diabetes management is a puzzle and focuses on a healthy lifestyle, physical exercise, and medication. Thus far, the condition remains incurable; management just helps to control it. Its medical treatment is expensive and is to be followed for the long term, which is why people, especially from low-income countries, resort to herbal medicines. However, many active compounds isolated from plants (phytocompounds) are poorly bioavailable due to their low solubility, low permeability, or rapid elimination. To overcome these impediments and to alleviate the cost burden on disadvantaged populations, plant nanomedicines are being studied. Nanoparticulate formulations containing antidiabetic plant extracts or phytocompounds have shown promising results. We herein aimed to provide an overview of the use of lipid- and inorganic-based nanoparticulate delivery systems with plant extracts or phytocompounds for the treatment of diabetes while highlighting their advantages and limitations for clinical application. The findings from the reviewed works showed that these nanoparticulate formulations resulted in high antidiabetic activity at low doses compared to the corresponding plant extracts or phytocompounds alone. Moreover, it was shown that nanoparticulate systems address the poor bioavailability of herbal medicines, but the lack of enough preclinical and clinical pharmacokinetic and/or pharmacodynamic trials still delays their use in diabetic patients.
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13
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Zhang Q, Xu S, Xu W, Zhou Y, Luan H, Wang D. Resveratrol decreases local inflammatory markers and systemic endotoxin in patients with aggressive periodontitis. Medicine (Baltimore) 2022; 101:e29393. [PMID: 35758374 PMCID: PMC9276133 DOI: 10.1097/md.0000000000029393] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 04/13/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Inflammation is hypothesized to contribute to the pathogenesis of periodontitis. Resveratrol (RV) is known for its anti-inflammatory properties. The purpose of this study was to investigate the inhibitory effect of RV on local inflammatory markers and systemic endotoxin in patients with periodontitis. METHODS A total of 160 patients with periodontitis were enrolled in this study. The selected patients were randomly divided into four groups and received placebo, high-dose (500 mg/d) of RV (HRV, n = 40), middle-dose (250 mg/d) of RV (middle dose RV (MRV), n = 40) and low-dose (125 mg/d) of RV (low dose RV (LRV), n = 40) with orally administration. All patients received an 8-week treatment. The periodontal status of patients with periodontitis was recorded by using clinical attachment level (CAL), bleeding index (BI), oral hygiene index-simplified (OHI-S), and probing pocket depth (PPD). The levels of inflammatory markers in serum and gingival crevicular fluid (GCF), and systemic levels of endotoxin were evaluated using high sensitivity enzyme-linked immuno sorbent assay. RESULTS Outcomes showed that symptoms of periodontitis determined by CAL, BI OHI-S and PPD were improved by RV compared to placebo. RV treatment decreased inflammatory markers in serum and GCF compared to placebo in patient with periodontitis. Systemic endotoxin declined more in the RV group than the placebo-treated group. CONCLUSION In conclusion, data in the current study indicate that RV is an efficient drug for the treatment of patients with periodontitis. The findings of the present study find that RV inhibits systemic local inflammatory markers and systemic endotoxin and suggest that 500 mg/d RV is the ideal dose for patients with periodontitis.
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Affiliation(s)
- Qiang Zhang
- Department of Stomatology, The Second People's Hospital of Changzhi, Changzhi, Shanxi, China
| | - Shuhan Xu
- Department of Stomatology, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Wenxiu Xu
- Department of Stomatology, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
- Department of Stomatology, Guangming District Maternal and child health hospital, Shenzhen, Guangdong, China
| | - Yang Zhou
- Department of Stomatology, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Hairong Luan
- Department of Stomatology, Guangming District Maternal and child health hospital, Shenzhen, Guangdong, China
- Center of Functional Experiment Teaching, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Deli Wang
- Department of Stomatology, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
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14
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Levenson AS. Metastasis-associated protein 1-mediated antitumor and anticancer activity of dietary stilbenes for prostate cancer chemoprevention and therapy. Semin Cancer Biol 2022; 80:107-117. [PMID: 32126261 PMCID: PMC7483334 DOI: 10.1016/j.semcancer.2020.02.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 02/17/2020] [Accepted: 02/18/2020] [Indexed: 02/07/2023]
Abstract
Dietary bioactive polyphenols that demonstrate beneficial biological functions including antioxidant, anti-inflammatory, and anticancer activity hold immense promise as effective and safe chemopreventive and chemosensitizing natural anticancer agents. The underlying molecular mechanisms of polyphenols' multiple effects are complex and these molecules are considered promising targets for chemoprevention and therapy. However, the development of novel personalized targeted chemopreventive and therapeutic strategies is essential for successful therapeutic outcomes. In this review, we highlight the potential of metastasis-associated protein 1 (MTA1)-targeted anticancer and antitumor effects of three dietary stilbenes, namely resveratrol, pterostilbene, and gnetin C, for prostate cancer management. MTA1, an epigenetic reader and master transcriptional regulator, plays a key role in all stages of prostate cancer progression and metastasis. Stilbenes inhibit MTA1 expression, disrupt the MTA1/histone deacetylase complex, modulate MTA1-associated Epi-miRNAs and reduce MTA1-dependent inflammation, cell survival, and metastasis in prostate cancer in vitro and in vivo. Overall, the MTA1-targeted strategies involving dietary stilbenes may be valuable for effective chemoprevention in selected subpopulations of early stage prostate cancer patients and for combinatorial strategies with conventional chemotherapeutic drugs against advanced metastatic prostate cancer.
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Affiliation(s)
- Anait S Levenson
- Department of Biomedical Sciences, School of Veterinary Medicine, Long Island University, Brookville, NY, 11548, USA.
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15
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Matsui T. Polyphenols-absorption and occurrence in the body system. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2022. [DOI: 10.3136/fstr.fstr-d-21-00264] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Toshiro Matsui
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduated School of Kyushu University
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16
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Tamura Y, Morimoto C, Kuribayashi-Okuma E, Uchida S, Hosoyamada M, Nakagawa T, Shibata S. Melinjo seed extract stimulates intestinal ABCG2 expression to reduce serum uric acid levels in hyperuricemic rats. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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17
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Khoirunisa V, Rusydi F, Boli LSP, Saputro AG, Rachmawati H, Nakanishi H, Kasai H, Dipojono HK. Computational Investigation on the ∙OOH Scavenging Sites of Gnetin C. FOOD BIOPHYS 2021. [DOI: 10.1007/s11483-021-09666-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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18
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Incorporating natural anti-inflammatory compounds into yeast glucan particles increases their bioactivity in vitro. Int J Biol Macromol 2020; 169:443-451. [PMID: 33340625 DOI: 10.1016/j.ijbiomac.2020.12.107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/30/2020] [Accepted: 12/14/2020] [Indexed: 11/23/2022]
Abstract
Yeast glucan particles (GPs) are promising agents for the delivery of biologically active compounds as drugs. GPs possess their own biological activities and can act synergistically with their cargo. This study aimed to determine how incorporating artemisinin, ellagic acid, (-)-epigallocatechin gallate, morusin, or trans-resveratrol into GPs affects their anti-inflammatory and antioxidant potential in vitro. Two different methods - slurry evaporation and spray drying - were used to prepare composites (GPs + bioactive compound) and the anti-inflammatory and antioxidative properties of the resultant products were compared. Several of the natural compounds showed the beneficial effects of being combined with GPs. The materials prepared by spray drying showed greater activity than those made using a rotary evaporator. Natural compounds incorporated into yeast GPs showed greater anti-inflammatory potential in vitro than simple suspensions of these compounds as demonstrated by their inhibition of the activity of transcription factors NF-κB/AP-1 and the secretion of the pro-inflammatory cytokine TNF-α.
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19
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Therapeutic Potential of Gnetin C in Prostate Cancer: A Pre-Clinical Study. Nutrients 2020; 12:nu12123631. [PMID: 33255879 PMCID: PMC7760540 DOI: 10.3390/nu12123631] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/20/2020] [Accepted: 11/24/2020] [Indexed: 12/11/2022] Open
Abstract
Natural stilbenes have gained significant attention in the scientific community owing to their potential anticancer effects against prostate cancer. We recently reported that Gnetin C, a resveratrol (Res) dimer, demonstrated more potent inhibition of metastasis-associated protein 1/v-ets avian erythroblastosis virus E26 oncogene homolog 2 (MTA1/ETS2) axis in prostate cancer cell lines than other stilbenes. In this study, we investigated in vivo antitumor effects of Gnetin C in two doses (50 and 25 mg/kg, i.p.) using PC3M-Luc subcutaneous xenografts and compared these to Res and pterostilbene (Pter). We found that while vehicle-treated mice revealed rapid tumor progression, compounds-treated mice showed noticeable delay in tumor growth. Gnetin C in 50 mg/kg dose demonstrated the most potent tumor inhibitory effects. Gnetin C in 25 mg/kg dose exhibited tumor inhibitory effects comparable with Pter in 50 mg/kg dose. Consistent with the effective antitumor effects, Gnetin C-treated tumors showed reduced mitotic activity and angiogenesis and a significant increase in apoptosis compared to all the other groups. The data suggest that Gnetin C is more potent in slowing tumor progression in prostate cancer xenografts than Res or Pter. Taken together, we demonstrated, for the first time, that Gnetin C is a lead compound among stilbenes for effectively blocking prostate cancer progression in vivo.
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20
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Tani H, Koshino H, Taniguchi T, Yoshimatsu M, Hikami S, Takahashi S. Structural Studies on Stilbene Oligomers Isolated from the Seeds of Melinjo ( Gnetum gnemon L.). ACS OMEGA 2020; 5:12245-12250. [PMID: 32548407 PMCID: PMC7271399 DOI: 10.1021/acsomega.0c00910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 05/05/2020] [Indexed: 06/11/2023]
Abstract
This paper describes the isolation and structural determination of a new stilbene dimer, named 7a-epi-gnetin C, from melinjo (Gnetum gnemon L.) seed extract. The relative structure was elucidated based on NMR spectroscopic evidence, while the absolute configuration was assigned by a combination of NMR and electronic circular dichroism spectroscopic analysis and chemical conversion. 7a-epi-Gnetin C was evaluated as an antioxidant and was shown to have a comparable activity to the known stilbene oligomers. In addition, the structural revision of gnetin L, a known stilbene dimer, was also discussed.
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Affiliation(s)
- Hiroko Tani
- Institute
for Bee Products & Health Science, Yamada
Bee Company, Inc., 194
Ichiba, Kagamino, Okayama 708-0393, Japan
| | - Hiroyuki Koshino
- RIKEN
Center for Sustainable Resource Science, 2-1 Wako, Saitama 351-0198, Japan
| | - Tohru Taniguchi
- Graduate
School of Advanced Life Science, Frontier Research Center for Post-Genome
Science and Technology, Hokkaido University, N21W11, Sapporo 001-0021, Japan
| | - Maiko Yoshimatsu
- Institute
for Bee Products & Health Science, Yamada
Bee Company, Inc., 194
Ichiba, Kagamino, Okayama 708-0393, Japan
| | - Susumu Hikami
- Institute
for Bee Products & Health Science, Yamada
Bee Company, Inc., 194
Ichiba, Kagamino, Okayama 708-0393, Japan
| | - Shunya Takahashi
- RIKEN
Center for Sustainable Resource Science, 2-1 Wako, Saitama 351-0198, Japan
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21
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Wiciński M, Domanowska A, Wódkiewicz E, Malinowski B. Neuroprotective Properties of Resveratrol and Its Derivatives-Influence on Potential Mechanisms Leading to the Development of Alzheimer's Disease. Int J Mol Sci 2020; 21:ijms21082749. [PMID: 32326620 PMCID: PMC7215333 DOI: 10.3390/ijms21082749] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/03/2020] [Accepted: 04/11/2020] [Indexed: 12/13/2022] Open
Abstract
The lack of effective Alzheimer's disease treatment is becoming a challenge for researchers and prompts numerous attempts to search for and develop better therapeutic solutions. Compounds that affect several routes of the neurodegeneration cascade leading to the development of disease are of particular interest. An example of such substances is resveratrol and its synthetic and natural derivatives, which have gained popularity in recent years and show promise as a possible new therapeutic option in the approach to Alzheimer's disease treatment. In this article, the state of the art evidence on the role of resveratrol (RSV) in neuroprotection is presented; research results are summarized and the importance of resveratrol and its derivatives in the treatment of Alzheimer's disease are underlined. It also focuses on various modifications of the resveratrol molecule that should be taken into account in the design of future research on drugs against Alzheimer's disease.
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Fan X, Bai J, Hu M, Xu Y, Zhao S, Sun Y, Wang B, Hu J, Li Y. Drug interaction study of flavonoids toward OATP1B1 and their 3D structure activity relationship analysis for predicting hepatoprotective effects. Toxicology 2020; 437:152445. [PMID: 32259555 DOI: 10.1016/j.tox.2020.152445] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/14/2020] [Accepted: 03/25/2020] [Indexed: 12/22/2022]
Abstract
Organic anion transporting polypeptide 1B1 (OATP1B1), a liver-specific uptake transporter, was associated with drug induced liver injury (DILI). Screening and identifying potent OATP1B1 inhibitors with little toxicity is of great value in reducing OATP1B1-mediated DILI. Flavonoids are a group of polyphenols ubiquitously present in vegetables, fruits and herbal products, some of them were reported to produce transporter-mediated DDI. Our objective was to investigate potential inhibitors of OATP1B1 from 99 flavonoids, and to assess the hepatoprotective effects on bosentan induced liver injury. Eight flavonoids, including biochanin A, hispidulin, isoliquiritigenin, isosinensetin, kaempferol, licochalcone A, luteolin and sinensetin exhibited significant inhibition (>50 %) on OATP1B1 in OATP1B1-HEK293 cells, which reduced the OATP1B1-mediated influx of methotrexate, accordingly decreased its cytotoxicity in OATP1B1-HEK293 cells and increased its AUC0-t in different extents in rats, from 28.27%-82.71 %. In bosentan-induced rat liver injury models, 8 flavonoids reduced the levels of serum total bile acid (TBA) and the liver concentration of bosentan in different degrees. Among them, kaempferol decreased the concentration most significantly, by 54.17 %, which indicated that flavonoids may alleviate bosentan-induced liver injury by inhibiting OATP1B1-mediated bosentan uptake. Furthermore, the pharmacophore model indicated the hydrogen bond acceptors and hydrogen bond donors may play critical role in the potency of flavonoids inhibition on OATP1B1. Taken together, our findings would provide helpful information for predicting the potential risks of flavonoid-containing food/herb-drug interactions in humans and alleviating bosentan -induced liver injury by OATP1B1 regulation.
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Affiliation(s)
- Xiaoqing Fan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Jie Bai
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Minwan Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Yanxia Xu
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, 100069, China
| | - Shengyu Zhao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Yanhong Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Baolian Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Jinping Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China.
| | - Yan Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
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Resveratrol and its Related Polyphenols Contribute to the Maintenance of Genome Stability. Sci Rep 2020; 10:5388. [PMID: 32214146 PMCID: PMC7096489 DOI: 10.1038/s41598-020-62292-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 03/04/2020] [Indexed: 01/10/2023] Open
Abstract
Genomic destabilisation is associated with the induction of mutations, including those in cancer-driver genes, and subsequent clonal evolution of cells with abrogated defence systems. Such mutations are not induced when genome stability is maintained; however, the mechanisms involved in genome stability maintenance remain elusive. Here, resveratrol (and related polyphenols) is shown to enhance genome stability in mouse embryonic fibroblasts, ultimately protecting the cells against the induction of mutations in the ARF/p53 pathway. Replication stress-associated DNA double-strand breaks (DSBs) that accumulated with genomic destabilisation were effectively reduced by resveratrol treatment. In addition, resveratrol transiently stabilised the expression of histone H2AX, which is involved in DSB repair. Similar effects on the maintenance of genome stability were observed for related polyphenols. Accordingly, we propose that polyphenol consumption can contribute to the suppression of cancers that develop with genomic instability, as well as lifespan extension.
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Oniki K, Kawakami T, Nakashima A, Miyata K, Watanabe T, Fujikawa H, Nakashima R, Nasu A, Eto Y, Takahashi N, Nohara H, Suico MA, Kotani S, Obata Y, Sakamoto Y, Seguchi Y, Saruwatari J, Imafuku T, Watanabe H, Maruyama T, Kai H, Shuto T. Melinjo seed extract increases adiponectin multimerization in physiological and pathological conditions. Sci Rep 2020; 10:4313. [PMID: 32152335 PMCID: PMC7062855 DOI: 10.1038/s41598-020-61148-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 02/20/2020] [Indexed: 12/11/2022] Open
Abstract
Melinjo seed extract (MSE) contains large amounts of polyphenols, including dimers of trans-resveratrol (e.g. gnetin C, L, gnemonoside A, B and D), and has been shown to potentially improve obesity. However, there is no clinical evidence regarding the anti-obesity effects of MSE, and its mechanisms are also unclear. We investigated the hypothesis that MSE supplementation increases the adiponectin (APN) multimerization via the up-regulation of disulfide bond A oxidoreductase-like protein (DsbA-L) under either or both physiological and obese conditions. To investigate the effect of MSE on the physiological condition, 42 healthy young volunteers were enrolled in a randomized, double-blind placebo-controlled clinical trial for 14 days. The participants were randomly assigned to the MSE 150 mg/day, MSE 300 mg/day or placebo groups. Furthermore, in order to investigate the effect of MSE on APN levels under obese conditions, we administered MSE powder (500 or 1000 mg/kg/day) to control-diet- or high-fat-diet (HFD)-fed C57BL/6 mice for 4 weeks. All participants completed the clinical trial. The administration of MSE 300 mg/day was associated with an increase in the ratio of HMW/total APN in relation to the genes regulating APN multimerization, including DsbA-L. Furthermore, this effect of MSE was more pronounced in carriers of the DsbA-L rs191776 G/T or T/T genotype than in others. In addition, the administration of MSE to HFD mice suppressed their metabolic abnormalities (i.e. weight gain, increased blood glucose level and fat mass accumulation) and increased the levels of total and HMW APN in serum and the mRNA levels of ADIPOQ and DsbA-L in adipose tissue. The present study suggests that MSE may exert beneficial effects via APN multimerization in relation to the induction of DsbA-L under both physiological and obese conditions.
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Affiliation(s)
- Kentaro Oniki
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan.
| | - Taisei Kawakami
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Azusa Nakashima
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Keishi Miyata
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Takehisa Watanabe
- Departments of Gastroenterology and Hepatology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Haruka Fujikawa
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Ryunosuke Nakashima
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Aoi Nasu
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yuka Eto
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Noriki Takahashi
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hirofumi Nohara
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Mary Ann Suico
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Shunsuke Kotani
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yui Obata
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yuki Sakamoto
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yuri Seguchi
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Junji Saruwatari
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Tadashi Imafuku
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroshi Watanabe
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Toru Maruyama
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hirofumi Kai
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Tsuyoshi Shuto
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
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Kumar A, Dholakia K, Sikorska G, Martinez LA, Levenson AS. MTA1-Dependent Anticancer Activity of Gnetin C in Prostate Cancer. Nutrients 2019; 11:E2096. [PMID: 31487842 PMCID: PMC6770780 DOI: 10.3390/nu11092096] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/23/2019] [Accepted: 08/30/2019] [Indexed: 02/08/2023] Open
Abstract
The overexpression of metastasis-associated protein 1 (MTA1) in prostate cancer (PCa) contributes to tumor aggressiveness and metastasis. We have reported the inhibition of MTA1 by resveratrol and its potent analog pterostilbene in vitro and in vivo. We have demonstrated that pterostilbene treatment blocks the progression of prostatic intraepithelial neoplasia and adenocarcinoma in mouse models by inhibiting MTA1 expression and signaling. In the current study, we investigated the MTA1 targeted anticancer effects of Gnetin C, a resveratrol dimer, in comparison with resveratrol and pterostilbene. Using DU145 and PC3M PCa cells, we found that Gnetin C downregulates MTA1 more potently than resveratrol and pterostilbene. Further, Gnetin C demonstrated significant MTA1-mediated inhibitory effect on cell viability, colony formation, and migration, while showing a more potent induction of cell death than resveratrol or pterostilbene. In addition, we identified Gnetin C-induced substantial ETS2 (erythroblastosis E26 transformation-specific 2) downregulation, which is not only MTA1-dependent, but is also independent of MTA1 as a possible mechanism for the superior anticancer efficacy of Gnetin C in PCa. Together, these findings underscore the importance of novel potent resveratrol dimer, Gnetin C, as a clinically promising agent for the future development of chemopreventive and possibly combinatorial therapeutic approaches in PCa.
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Affiliation(s)
- Avinash Kumar
- Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA.
| | - Kshiti Dholakia
- Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA.
| | - Gabriela Sikorska
- Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA.
| | | | - Anait S Levenson
- School of Veterinary Medicine, Long Island University, Brookville, NY 11548, USA.
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Nakagami Y, Suzuki S, Espinoza JL, Vu Quang L, Enomoto M, Takasugi S, Nakamura A, Nakayama T, Tani H, Hanamura I, Takami A. Immunomodulatory and Metabolic Changes after Gnetin-C Supplementation in Humans. Nutrients 2019; 11:nu11061403. [PMID: 31234376 PMCID: PMC6628299 DOI: 10.3390/nu11061403] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/11/2019] [Accepted: 06/17/2019] [Indexed: 12/14/2022] Open
Abstract
Gnetin-C is a naturally occurring stilbene derived from the seeds of Gnetum gnemon L., an edible plant native to Southeast Asia that is called melinjo. Although the biological properties and safety of G. gnemon extract, which contains nearly 3% Gnetin-C, have been confirmed in various human studies, whether or not pure Gnetin-C is safe for humans is unclear at present. We conducted a randomized, double-blind, placebo-controlled trial. Healthy subjects were randomly divided into two groups. The interventional group (n = 6) was given Gnetin-C, and the control group (n = 6) was provided a placebo, for 14 days. Lipid profiles, biomarkers of oxidative stress and circulating blood cells were assessed before and after the intervention. All subjects completed the study, with no side effects reported across the study duration. Gnetin-C supplementation demonstrated a statistically significant increase in the absolute number of circulating natural killer (NK) cells expressing the activating receptors NKG2D and NKp46. NK cells derived from subjects who received Gnetin-C for two weeks showed higher cytotoxicity against K562 target cells than those before receiving Gnetin-C. In addition, Gnetin-C also resulted in a significant decrease in the absolute neutrophil count in the blood compared with the placebo. Furthermore, Gnetin-C significantly reduced the levels of uric acid, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, total adiponectin, and high-molecular-weight adiponectin. These data indicate that Gnetin-C has biological effects of enhancing the NK activity on circulating human immune cells. The immunomodulatory effects are consistent with a putative improvement in cancer immunosurveillance via the upregulation of the NKG2D receptor. The study was registered with UMIN-CTR, number 000030364, on 12 December 2017.
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Affiliation(s)
- Yuya Nakagami
- Department of Internal Medicine, Division of Hematology, Aichi Medical University School of Medicine, Nagakute, Aichi 480-1195, Japan.
- Department of Clinical Laboratory, Aichi Medical University Hospital, Nagakute, Aichi 480-1195, Japan.
| | - Susumu Suzuki
- Department of Tumor Immunology, Aichi Medical University School of Medicine, Nagakute, Aichi 480-1195, Japan.
- Research Creation Support Center, Aichi Medical University, Nagakute, Aichi 480-1195, Japan.
| | - J Luis Espinoza
- Department of Hematology and Rheumatology, Faculty of Medicine, Kindai University, Osakasayama 589-8511, Japan.
| | - Lam Vu Quang
- Department of Internal Medicine, Division of Hematology, Aichi Medical University School of Medicine, Nagakute, Aichi 480-1195, Japan.
| | - Megumi Enomoto
- Department of Clinical Laboratory, Aichi Medical University Hospital, Nagakute, Aichi 480-1195, Japan.
| | - Souichi Takasugi
- Department of Internal Medicine, Division of Hematology, Aichi Medical University School of Medicine, Nagakute, Aichi 480-1195, Japan.
| | - Ayano Nakamura
- Department of Internal Medicine, Division of Hematology, Aichi Medical University School of Medicine, Nagakute, Aichi 480-1195, Japan.
| | - Takayuki Nakayama
- Department of Internal Medicine, Division of Hematology, Aichi Medical University School of Medicine, Nagakute, Aichi 480-1195, Japan.
- Department of Clinical Laboratory, Aichi Medical University Hospital, Nagakute, Aichi 480-1195, Japan.
| | - Hiroya Tani
- Department of Clinical Laboratory, Aichi Medical University Hospital, Nagakute, Aichi 480-1195, Japan.
| | - Ichiro Hanamura
- Department of Internal Medicine, Division of Hematology, Aichi Medical University School of Medicine, Nagakute, Aichi 480-1195, Japan.
| | - Akiyoshi Takami
- Department of Internal Medicine, Division of Hematology, Aichi Medical University School of Medicine, Nagakute, Aichi 480-1195, Japan.
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Yoshida H, Imaizumi T, Matsumiya T, Seya K, Kawaguchi S, Tanaka H. Gnetin C suppresses double-stranded RNA-induced C-C motif chemokine ligand 2 (CCL2) and CCL5 production by inhibiting Toll-like receptor 3 signaling pathway. Biomed Res 2018; 39:231-240. [PMID: 30333430 DOI: 10.2220/biomedres.39.231] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The innate immune system is a prerequisite for biophylactic ability, but its dysregulation can cause inflammatory and autoimmune diseases. To determine a safe method of controlling inflammatory reactions in the brain, we examined the effects of gnetin C, a natural resveratrol dimer, on C-C motif chemokine ligand 2 (CCL2) and CCL5 (pro-inflammatory chemokines) production observed after treatment with polyinosinic-polycytidylic acid [poly IC; a synthetic analog of dsRNA as a Toll-like receptor 3 (TRL3) ligand, 30 μg/mL] in cultured human astrocytoma U373MG and neuroblastoma SH-SY5Y cells. The addition of gnetin C (10 μM) to the media moderately reduced the CCL2 production and markedly suppressed CCL5 production in both cells. In the TLR3-interferon (IFN)-β-phosphorylated-STAT1 (signal transducer and activator of transcription protein 1)RIG-I (retinoic acid-inducible gene-I) pathway that mediates CCL2 and CCL5 production, gnetin C first inhibits IFN-β expression in SH-SY5Y cells and primarily inhibits STAT1 phosphorylation in U373MG cells. In any case, gnetin C attenuated the dsRNA-activated TLR3 signaling resulting in CCL2 and CCL5 production, thus, may be useful for controlling TLR3-mediated inflammation in the brain.
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Affiliation(s)
- Hidemi Yoshida
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Tadaatsu Imaizumi
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Tomoh Matsumiya
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Kazuhiko Seya
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Shogo Kawaguchi
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine
| | - Hiroshi Tanaka
- Department of Pediatrics, Hirosaki University Graduate School of Medicine.,Department of School Health Science, Faculty of Education
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28
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Trung LQ, An DTT. Is Resveratrol a Cancer Immunomodulatory Molecule? Front Pharmacol 2018; 9:1255. [PMID: 30459616 PMCID: PMC6232184 DOI: 10.3389/fphar.2018.01255] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 10/15/2018] [Indexed: 01/20/2023] Open
Affiliation(s)
- Ly Quoc Trung
- Soctrang Provincial Health Department, Soc Trang, Vietnam.,Phuong Chau International Hospital, Can Tho, Vietnam
| | - Dao T T An
- Pediatric Department, University of Medicine and Pharmacy, Ho Chi Minh City, Vietnam
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29
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30
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SEINO S, KIMOTO T, YOSHIDA H, TANJI K, MATSUMIYA T, HAYAKARI R, SEYA K, KAWAGUCHI S, TSURUGA K, TANAKA H, IMAIZUMI T. Gnetin C, a resveratrol dimer, reduces amyloid-β 1–42 (Aβ42) production and ameliorates Aβ42-lowered cell viability in cultured SH-SY5Y human neuroblastoma cells . Biomed Res 2018; 39:105-115. [DOI: 10.2220/biomedres.39.105] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Syota SEINO
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Takeru KIMOTO
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Hidemi YOSHIDA
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Kunikazu TANJI
- Department of Neuropathology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Tomoh MATSUMIYA
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Ryo HAYAKARI
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Kazuhiko SEYA
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Shogo KAWAGUCHI
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine
| | - Kazushi TSURUGA
- Department of Pediatrics, Hirosaki University Graduate School of Medicine
| | - Hiroshi TANAKA
- Department of Pediatrics, Hirosaki University Graduate School of Medicine
- Department of School Health Science, Faculty of Education, Hirosaki University
| | - Tadaatsu IMAIZUMI
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
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31
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Ikeda E, Ikeda Y, Wang Y, Fine N, Sheikh Z, Viniegra A, Barzilay O, Ganss B, Tenenbaum HC, Glogauer M. Resveratrol derivative-rich melinjo seed extract induces healing in a murine model of established periodontitis. J Periodontol 2018; 89:586-595. [DOI: 10.1002/jper.17-0352] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 10/10/2017] [Accepted: 10/23/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Eri Ikeda
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
- Department of Periodontology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - Yuichi Ikeda
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
- Department of Periodontology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - Yongqiang Wang
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
| | - Noah Fine
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
| | - Zeeshan Sheikh
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
- Lunenfeld-Tanenbaum Research Institute (Mt. Sinai Hospital); Toronto ON Canada
| | - Ana Viniegra
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
| | - Oriyah Barzilay
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
| | - Bernhard Ganss
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
| | - Howard C. Tenenbaum
- Department of Dentistry; Mount Sinai Hospital; Centre for Advanced Dental Research and Care Toronto; ON Canada
- Department of Laboratory Medicine and Pathobiology; Faculty of Medicine; Mount Sinai Hospital; Toronto ON Canada
- Department of periodontology; Faculty of Dentistry; University of Toronto; Toronto ON Canada
- Department of Periodontics; School of Dental Medicine; Tel Aviv University; Tel Aviv Israel
| | - Michael Glogauer
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
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32
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Nana AW, Chin YT, Lin CY, Ho Y, Bennett JA, Shih YJ, Chen YR, Changou CA, Pedersen JZ, Incerpi S, Liu LF, Whang-Peng J, Fu E, Li WS, Mousa SA, Lin HY, Davis PJ. Tetrac downregulates β-catenin and HMGA2 to promote the effect of resveratrol in colon cancer. Endocr Relat Cancer 2018; 25:279-293. [PMID: 29255096 DOI: 10.1530/erc-17-0450] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 12/18/2017] [Indexed: 12/13/2022]
Abstract
The molecular pathogenesis of colorectal cancer encompasses the activation of several oncogenic signaling pathways that include the Wnt/β-catenin pathway and the overexpression of high mobility group protein A2 (HMGA2). Resveratrol - the polyphenolic phytoalexin - binds to integrin αvβ3 to induce apoptosis in cancer cells via cyclooxygenase 2 (COX-2) nuclear accumulation and p53-dependent apoptosis. Tetraiodothyroacetic acid (tetrac) is a de-aminated derivative of l-thyroxine (T4), which - in contrast to the parental hormone - impairs cancer cell proliferation. In the current study, we found that tetrac promoted resveratrol-induced anti-proliferation in colon cancer cell lines, in primary cultures of colon cancer cells, and in vivo The mechanisms implicated in this action involved the downregulation of nuclear β-catenin and HMGA2, which are capable of compromising resveratrol-induced COX-2 nuclear translocation. Silencing of either β-catenin or HMGA2 promoted resveratrol-induced anti-proliferation and COX-2 nuclear accumulation which is essential for integrin αvβ3-mediated-resveratrol-induced apoptosis in cancer cells. Concurrently, tetrac enhanced nuclear abundance of chibby family member 1, the nuclear β-catenin antagonist, which may further compromise the nuclear β-catenin-dependent gene expression and proliferation. Taken together, these results suggest that tetrac targets β-catenin and HMGA2 to promote resveratrol-induced-anti-proliferation in colon cancers, highlighting its potential in anti-cancer combination therapy.
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Affiliation(s)
- André Wendindondé Nana
- PhD Program for Cancer Molecular Biology and Drug DiscoveryCollege of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei, Taiwan
| | - Yu-Tang Chin
- PhD Program for Cancer Molecular Biology and Drug DiscoveryCollege of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Taipei Cancer CenterTaipei Medical University, Taipei, Taiwan
| | - Chi-Yu Lin
- Center for Teeth Bank and Dental Stem Cell Technology and School of DentistryCollege of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yih Ho
- School of PharmacyCollege of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - James A Bennett
- Center for Immunology and Microbial DiseasesAlbany Medical College, Albany, New York, USA
| | - Ya-Jung Shih
- Taipei Cancer CenterTaipei Medical University, Taipei, Taiwan
| | - Yi-Ru Chen
- Taipei Cancer CenterTaipei Medical University, Taipei, Taiwan
| | - Chun A Changou
- PhD Program for Cancer Molecular Biology and Drug DiscoveryCollege of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei, Taiwan
- Integrated LaboratoryCenter of Translational Medicine, Core Facility, Taipei Medical University, Taipei, Taiwan
| | | | | | - Leroy F Liu
- Taipei Cancer CenterTaipei Medical University, Taipei, Taiwan
| | | | - Earl Fu
- Department of DentistryTaipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan
| | - Wen-Shan Li
- Laboratory of Chemical Biology and Medicinal ChemistryInstitute of Chemistry, Academia Sinica, Taipei, Taiwan
- Doctoral Degree Program in Marine BiotechnologyNational Sun Yat-Sen University, Taipei, Taiwan
| | - Shaker A Mousa
- Pharmaceutical Research InstituteAlbany College of Pharmacy and Health Sciences, Albany, New York, USA
| | - Hung-Yun Lin
- PhD Program for Cancer Molecular Biology and Drug DiscoveryCollege of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Taipei Cancer CenterTaipei Medical University, Taipei, Taiwan
- Pharmaceutical Research InstituteAlbany College of Pharmacy and Health Sciences, Albany, New York, USA
- Traditional Herbal Medicine Research Center of Taipei Medical University HospitalTaipei Medical University, Taipei, Taiwan
| | - Paul J Davis
- Pharmaceutical Research InstituteAlbany College of Pharmacy and Health Sciences, Albany, New York, USA
- Department of MedicineAlbany Medical College, Albany, New York, USA
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33
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Saifudin A, Suryadini H, Sujono TA, Suhendi A, Tanaka K, Tezuka Y. Serum uric acid concentration due to Gnetum gnemon
chip supplementation and quality changes analyses based on its chemical constituents in post-frying process. J FOOD PROCESS PRES 2017. [DOI: 10.1111/jfpp.13535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Azis Saifudin
- School of Pharmaceutical Sciences; Universitas Muhammadiyah Surakarta, Pabelan, KTS Solo; Jawa Tengah 57102 Indonesia
| | - Halida Suryadini
- School of Pharmaceutical Sciences; Universitas Muhammadiyah Surakarta, Pabelan, KTS Solo; Jawa Tengah 57102 Indonesia
| | - Tanti A. Sujono
- School of Pharmaceutical Sciences; Universitas Muhammadiyah Surakarta, Pabelan, KTS Solo; Jawa Tengah 57102 Indonesia
| | - Andi Suhendi
- School of Pharmaceutical Sciences; Universitas Muhammadiyah Surakarta, Pabelan, KTS Solo; Jawa Tengah 57102 Indonesia
| | - Ken Tanaka
- Department of Pharmacognosy, College of Pharmaceutical Science; Ritsumeikan University, 1-1-1 Nojihigashi; Kusatsu Shiga 525-8577 Japan
| | - Yasuhiro Tezuka
- Faculty of Pharmaceutical Sciences; Hokuriku University, Ho 3, Kanagawa-machi; Kanazawa 920-1181 Japan
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Espinoza JL, Inaoka PT. Gnetin-C and other resveratrol oligomers with cancer chemopreventive potential. Ann N Y Acad Sci 2017; 1403:5-14. [PMID: 28856688 DOI: 10.1111/nyas.13450] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 07/11/2017] [Accepted: 07/18/2017] [Indexed: 02/06/2023]
Abstract
Resveratrol has been extensively studied to investigate its biological effects, including its chemopreventive potential against cancer. Over the past decade, various resveratrol oligomers, both naturally occurring and synthetic, have been described. These resveratrol oligomers result from the polymerization of two or more resveratrol units to form dimers, trimers, tetramers, or even more complex derivatives. Some oligomers appear to have antitumor activities that are similar or superior to monomeric resveratrol. In this review, we discuss resveratrol oligomers with anticancer potential, with emphasis on well-characterized compounds, such as the dimer gnetin-C and other oligomers from Gnetum gnemon, whose safety, pharmacokinetic, and biological activities have been studied in humans.
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Affiliation(s)
- J Luis Espinoza
- Department of Hematology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Pleiades T Inaoka
- Department of Physical Therapy, School of Health Sciences, Kanazawa University, Kanazawa, Japan
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35
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Gao Y, He C. Anti-proliferative and anti-metastasis effects of ten oligostilbenes from the seeds of Paeonia suffruticosa on human cancer cells. Oncol Lett 2017; 13:4371-4377. [PMID: 28599439 DOI: 10.3892/ol.2017.5982] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Accepted: 11/21/2016] [Indexed: 01/21/2023] Open
Abstract
Paeonia suffruticosa from the section Moutan of the genus Paeonia is an important Chinese medicinal herb. In our previous study, 10 oligostilbenes from the seeds of P. suffruticosa, including trans-resveratrol and its dimers and trimers, were isolated and identified. In the present study, the anti-proliferative effects of these 10 oligostilbenes were systemically evaluated in a panel of human lung, breast and bone cancer cell lines, and their apoptotic effects were analyzed using a high-content multiplex apoptosis assay and a fluorescent caspase-3/7 assay. Furthermore, their anti-metastasis effects were examined in an invasive breast cancer cell line. Among the ten compounds, two resveratrol dimers, trans- and cis-gnetin H, showed the most potent anti-proliferative and anti-metastasis effects. All trans-oligostilbenes were more effective than their cis-forms, and trimers of resveratrol were more effective than dimers and the resveratrol isomer. The structure-activity relationships revealed that the polymerization degree, the double bond in the stilbene skeleton, and the steric arrangement and conformation of oligostilbenes obviously affected their antitumor potential. The results from this study provide valuable information for future semi-synthesis of resveratrol derivatives to develop novel cancer chemopreventive agents.
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Affiliation(s)
- Ying Gao
- Tennessee Center for Botanical Medicine Research and the Department of Biology, Middle Tennessee State University, Murfreesboro, TN 37132, USA
| | - Chunnian He
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100193, P.R. China
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Su Y, Chen L, Su Y, Li Z, Zhang C, Mu T. Spectroscopic evidences of toxic trans-crotonaldehyde trapped and transformed by resveratrol to prevent the damage of mitochondrial DNA. IUBMB Life 2017; 69:500-509. [DOI: 10.1002/iub.1631] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Accepted: 03/20/2017] [Indexed: 01/16/2023]
Affiliation(s)
- Yanbin Su
- College of Chemical and Pharmaceutical Engineering; Jilin University of Chemical Technology; Jilin China
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences; Jilin University; Changchun China
| | - Lei Chen
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences; Jilin University; Changchun China
| | - Yanwen Su
- College of Chemical and Pharmaceutical Engineering; Jilin University of Chemical Technology; Jilin China
| | - Zhengqiang Li
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences; Jilin University; Changchun China
| | - Chuang Zhang
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences; Jilin University; Changchun China
| | - Tongxing Mu
- College of Chemical and Pharmaceutical Engineering; Jilin University of Chemical Technology; Jilin China
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Identification and quantification of thymol metabolites in plasma, liver and duodenal wall of broiler chickens using UHPLC-ESI-QTOF-MS. Biomed Chromatogr 2016; 31. [DOI: 10.1002/bmc.3881] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 10/07/2016] [Accepted: 10/28/2016] [Indexed: 01/19/2023]
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Park HS, Vick EJ, Gao Y, He C, Almosnid NM, Farone M, Farone AL. Cis- and Trans-gnetin H from Paeonia suffruticosa suppress inhibitor kappa B kinase phosphorylation in LPS-stimulated human THP-1 cells. JOURNAL OF ETHNOPHARMACOLOGY 2016; 189:202-209. [PMID: 27196294 DOI: 10.1016/j.jep.2016.05.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 05/12/2016] [Accepted: 05/16/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The inflammatory response is an important mechanism in host defense; however, overstimulation and chronic inflammation are involved in many important human diseases. Currently, tumor necrosis factor-alpha blockers such as infliximab and adalimumab along with methotrexate are used in cases of severe and chronic disease. However, there are severe side effects and limitations associated with these treatments. Cis- and trans-gnetin H are compounds isolated from the seeds of Paeonia suffruticosa, a medicinal plant used in traditional Chinese medicine for the treatment of many conditions, including inflammatory diseases. In this study, we investigated possible anti-inflammatory mechanisms of cis- and trans-gnetin H against LPS-stimulated human THP-1 cells. MATERIAL AND METHODS PMA-differentiated THP-1 cells were pretreated with increasing concentrations of cis- and trans-gnetin H with or without LPS. Following treatment, cytotoxicity and the TNF-α, IL-1β, and IL-8 response were measured. We also characterized the nuclear translocation of NF-κB subunit p65 (RelA) by immunofluorescence and then investigated NF-κB activation by measuring the phosphorylation of NF-κB mediators, IKK-β, IκB α, and p65 by western blotting. RESULTS We found that cis- and trans-gnetin H significantly inhibited the cytokine response in a concentration-dependent manner without affecting cell viability. Cis- and trans-gnetin H effectively inhibited nuclear translocation of p65 and phosphorylation of IKK-β, IκB α, and p65. While both compounds showed promising anti-inflammatory effects, trans-gnetin H was determined to be more effective in suppressing cytokine responses. CONCLUSION We demonstrated that cis- and trans-gnetin H suppress cytokine response in LPS-stimulated THP-1 cells by preventing activation of key signaling molecules, IKK-β, IκB α, and p65, involved in the NF-κB pathway and suggest the use of cis- and trans-gnetin H in potential therapies for conditions and diseases associated with chronic inflammation.
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Affiliation(s)
- Hyo S Park
- Middle Tennessee State University, 1301 East Main Street, Murfreesboro, Tennessee 37132, USA.
| | - Eric J Vick
- Middle Tennessee State University, 1301 East Main Street, Murfreesboro, Tennessee 37132, USA.
| | - Ying Gao
- Middle Tennessee State University, 1301 East Main Street, Murfreesboro, Tennessee 37132, USA.
| | - Chunnian He
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science, No. 151 Malianwa, North Road, Haidian District, Beijing 100193, PR China.
| | - Nadin Marwan Almosnid
- Middle Tennessee State University, 1301 East Main Street, Murfreesboro, Tennessee 37132, USA.
| | - Mary Farone
- Middle Tennessee State University, 1301 East Main Street, Murfreesboro, Tennessee 37132, USA.
| | - Anthony L Farone
- Middle Tennessee State University, 1301 East Main Street, Murfreesboro, Tennessee 37132, USA.
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Challenges in Analyzing the Biological Effects of Resveratrol. Nutrients 2016; 8:nu8060353. [PMID: 27294953 PMCID: PMC4924194 DOI: 10.3390/nu8060353] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 05/26/2016] [Accepted: 05/31/2016] [Indexed: 12/28/2022] Open
Abstract
The suggested health effects (e.g., disease prevention) of dietary bioactive compounds such as resveratrol are challenging to prove in comparison to man-made drugs developed for therapeutic purposes. Dietary bioactive compounds have multiple cellular targets and therefore have a variety of biological effects. Extrapolating the biological effects of dietary compounds from in vitro and in vivo animal experiments to humans may lead to over- or under-estimation of the effect and role of these compounds. The present paper will discuss a few of these challenges and suggest directions for future research. Questions we address include: (1) Is the combinatorial effect of resveratrol and other compounds real? (2) What are the real and relevant doses of resveratrol after administration? and (3) Is it possible to estimate the preventive effect of resveratrol by clinical trials using standard experimental designs? The examples concerning resveratrol taken from the scientific literature are mainly from 2010 and later. The challenges pointed out in this review are similar to most naturally occurring bioactive compounds.
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Chiba T, Kimura Y, Suzuki S, Tatefuji T, Umegaki K. Trans-Resveratrol Enhances the Anticoagulant Activity of Warfarin in a Mouse Model. J Atheroscler Thromb 2016; 23:1099-110. [PMID: 26947597 PMCID: PMC5090816 DOI: 10.5551/jat.31765] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Aim: Resveratrol is a popular ingredient in dietary supplements. Some patients concomitantly use dietary supplements and medicines in Japan. In the present study, we determined whether trans-resveratrol and melinjo (Gnetum gnemon L.) seed extract (MSE), which contains resveratrol dimers, interacted with drugs using a mouse model. Methods: Male C57BL/6J mice were fed experimental diets containing 0.005%, 0.05%, or 0.5% (w/w) trans-resveratrol or MSE for 1 or 12 weeks. The expression of liver cytochrome P-450 (CYP) mRNA and activity of liver microsomal CYP were measured. To determine the influence of resveratrol or MSE on drug efficacy, the anticoagulant activity of warfarin was examined in mice that were fed diets containing trans-resveratrol or MSE for 12 weeks. Results: When the mice were fed experimental diets for 1 week, none of the doses of trans-resveratrol and MSE affected body weight, liver weight, or plasma AST and ALT levels. Trans-resveratrol also did not affect CYP1A1, CYP1A2, CYP2C, or CYP3A activities. In contrast, 0.5% MSE slightly increased CYP1A1 activity. When the mice were fed experimental diets for 12 weeks, 0.05% trans-resveratrol increased CYP1A1, CYP2C, and CYP3A activities, whereas 0.5% MSE suppressed CYP3A activity. Under these conditions, 0.5% trans-resveratrol enhanced the anticoagulant activity of warfarin, although CYP2C activity increased. However, MSE did not affect the anticoagulant activity of warfarin. Conclusion: The 0.05% trans-resveratrol did not interact with warfarin in a mouse model, whereas 0.5% trans-resveratrol may have enhanced the anticoagulant activity of warfarin.
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Affiliation(s)
- Tsuyoshi Chiba
- Information Center, National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition
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Kataoka S, Mukai Y, Takebayashi M, Kudo M, Acuram UR, Kurasaki M, Sato S. Melinjo (Gnetum gnemon) extract intake during lactation stimulates hepatic AMP-activated protein kinase in offspring of excessive fructose-fed pregnant rats. Reprod Biol 2016; 16:165-73. [PMID: 27288341 DOI: 10.1016/j.repbio.2016.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 12/22/2015] [Accepted: 01/16/2016] [Indexed: 11/16/2022]
Abstract
Excessive maternal fructose intake during pregnancy and in early postnatal life has metabolic consequences for the offspring. We investigated the effects of melinjo (Gnetum gnemon) extract (MeE) intake during lactation on the expression and phosphorylation of adenosine monophosphate-activated protein kinase (AMPK) in the liver of offspring from excessive fructose-fed pregnant dams. Pregnant Wistar rats received a normal diet and 100g/L fructose solution during gestation ad libitum. At delivery, dams were divided into two groups: a control diet (FC) or a 0.1% MeE-containing diet (FM) fed during lactation. The dams that were not treated with fructose were fed a control diet (CC). At postnatal week 3, some pups were sacrificed, while the remaining continued to receive a normal diet and were sacrificed at week 17. Blood chemistry and phosphorylation levels of AMPK and acetyl-coenzyme A carboxylase (ACC) were evaluated. Plasma glucose levels in FC female offspring increased compared to that receiving CC at weeks 3 and 17; however, the levels in FM female offspring decreased at week 17. The insulin levels in FM female offspring decreased significantly compared to that in FC female offspring at week 3. Hepatic AMPK phosphorylation was upregulated in FM offspring at week 3 and in female, but not male, offspring at week 17. ACC phosphorylation in FM female offspring was upregulated at week 17. Our results suggest that maternal MeE intake during lactation may modulate the hepatic AMPK pathways in female offspring.
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Affiliation(s)
- Saori Kataoka
- Department of Nutrition, Faculty of Health Sciences, Aomori University of Health and Welfare, Aomori 030-8505, Japan
| | - Yuuka Mukai
- School of Nutrition and Dietetics, Faculty of Health and Social Work, Kanagawa University of Human Services, Kanagawa 238-8522, Japan
| | - Mihoko Takebayashi
- Department of Nutrition, Faculty of Health Sciences, Aomori University of Health and Welfare, Aomori 030-8505, Japan
| | - Megumi Kudo
- Department of Nutrition, Faculty of Health Sciences, Aomori University of Health and Welfare, Aomori 030-8505, Japan
| | - Uson Rachael Acuram
- Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Masaaki Kurasaki
- Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Shin Sato
- Department of Nutrition, Faculty of Health Sciences, Aomori University of Health and Welfare, Aomori 030-8505, Japan.
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Abstract
Testing the biological activities of a dietary compound like resveratrol presents various challenges, which are highlighted in this commentary, with some suggested direction for future research, focusing on five challenges: (1) many different cellular effects are observed for resveratrol, but it is not known whether they arise from one point of action (or a few) or whether resveratrol is non-specific in its action; (2) the health-promotion effect of dietary resveratrol is likely a combinatory effect of various bioactive components in the mixture (diet); (3) the known cell biological response to resveratrol is presently based on exposure to short-term high levels, and better in vitro analyses have to be developed; (4) the actual level of resveratrol and resveratrol metabolites present in vitro and in vivo during experiments may be over- and underestimated, respectively, because resveratrol is not very soluble in water; and (5) only a few small clinical studies have been published to date, focusing on the therapeutic effects of resveratrol. Further, clinical trials addressing the disease-preventive effects are especially challenging.
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Affiliation(s)
- Ole Vang
- Department of Science, Systems and Models, Roskilde University, Roskilde, Denmark
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Narayanan NK, Kunimasa K, Yamori Y, Mori M, Mori H, Nakamura K, Miller G, Manne U, Tiwari AK, Narayanan B. Antitumor activity of melinjo (Gnetum gnemon L.) seed extract in human and murine tumor models in vitro and in a colon-26 tumor-bearing mouse model in vivo. Cancer Med 2015; 4:1767-80. [PMID: 26408414 PMCID: PMC4674003 DOI: 10.1002/cam4.520] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 08/02/2015] [Accepted: 08/04/2015] [Indexed: 01/05/2023] Open
Abstract
Melinjo (Gnetum gnemon L.) seed extract (MSE) and its active ingredient gnetin C (GC), a resveratrol dimer, have been shown to possess a broad spectrum of pharmacological activities. In this study, we investigated the antitumor activity of MSE and GC using human and murine tumor cell culture models in vitro. The antitumor activity of GC was compared with trans-resveratrol (tRV), a stilbenoid polyphenol. Our results show that MSE and GC at clinically achievable concentrations significantly inhibited the proliferation of pancreatic, prostate, breast, and colon cancer cell types (P < 0.05), without affecting normal cells. Interestingly, GC exerts enhanced antitumor activity than that of tRV (P < 0.05). MSE and GC significantly induced apoptosis in all the cancer cells, indicating MSE and GC inhibit tumor cell growth by inducing apoptosis (P < 0.001). Our findings provide evidence that MSE might induce apoptosis in cancer cells via caspase-3/7-dependent and -independent mechanisms. However, GC might trigger both early and late stage apoptosis in cancer cells, at least in part by activating caspase 3/7-dependent mechanisms. Furthermore, the antitumor efficacy of MSE observed in vitro was also validated in a widely used colon-26 tumor-bearing mouse model. Oral administration of MSE at 50 and 100 mg/kg per day significantly inhibited tumor growth, intratumoral angiogenesis, and liver metastases in BALB/c mice bearing colon-26 tumors (P < 0.05). In conclusion, our findings provide evidence that MSE and GC have potent antitumor activity. Most importantly, we provide the first evidence that MSE inhibits tumor growth, intratumoral angiogenesis, and liver metastasis in a colon-26 tumor-bearing mice.
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Affiliation(s)
- Narayanan K Narayanan
- Department of Environmental Medicine, New York University School of Medicine, New York, New York
| | - Kazuhiro Kunimasa
- Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Koto-ku, Tokyo, Japan.,Institution for World Health Development, Mukogawa Women's University, Nishinomiya, Hyogo, Japan
| | - Yukio Yamori
- Institution for World Health Development, Mukogawa Women's University, Nishinomiya, Hyogo, Japan
| | - Mari Mori
- Institution for World Health Development, Mukogawa Women's University, Nishinomiya, Hyogo, Japan
| | - Hideki Mori
- Institution for World Health Development, Mukogawa Women's University, Nishinomiya, Hyogo, Japan
| | - Kazuki Nakamura
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya, Hyogo, Japan
| | - George Miller
- Departments of Surgery and Cell Biology, New York University School of Medicine, New York, New York
| | - Upender Manne
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Amit K Tiwari
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, Ohio
| | - Bhagavathi Narayanan
- Department of Environmental Medicine, New York University School of Medicine, New York, New York
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Ikuta T, Saito S, Tani H, Tatefuji T, Hashimoto K. Resveratrol derivative-rich melinjo (Gnetum gnemon L.) seed extract improves obesity and survival of C57BL/6 mice fed a high-fat diet. Biosci Biotechnol Biochem 2015; 79:2044-9. [PMID: 26103448 DOI: 10.1080/09168451.2015.1056510] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Melinjo (Gnetum gnemon L.) seed extracts (MSEs) are rich in resveratrol dimers (gnemonoside A, C, D, gnetin C), trans-resveratrol, and other resveratrol derivatives. trans-Resveratrol is a widely studied caloric restriction mimetic. In mice fed a high-fat diet (HFD), trans-resveratrol protects against obesity, type 2 diabetes, and premature death. Here, treatment of HFD-fed mice with 2.0% MSE significantly reduced body weight gain (p < 0.001), blood insulin (p < 0.01), and HOMA-IR (p < 0.05) after 8 weeks compared with untreated HFD-fed mice. Additionally, 0.2% MSE treatment of HFD-fed mice significantly improved physiological activity (p < 0.05) at 18 months of age and reduced risk of death due to HFD by 25% (hazard ratio = 0.75, p = 0.036). These data show that MSE can improve several aspects of metabolic syndrome and survival in mice and may have health benefits as a dietary supplement.
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Affiliation(s)
- Tomoki Ikuta
- a Institute for Bee Products and Health Science , Yamada Bee Company, Inc. , 194 Ichiba, Kagamino-cho, Tomata-gun 708-0393 , Japan
| | - Shinichiro Saito
- a Institute for Bee Products and Health Science , Yamada Bee Company, Inc. , 194 Ichiba, Kagamino-cho, Tomata-gun 708-0393 , Japan
| | - Hiroko Tani
- a Institute for Bee Products and Health Science , Yamada Bee Company, Inc. , 194 Ichiba, Kagamino-cho, Tomata-gun 708-0393 , Japan
| | - Tomoki Tatefuji
- a Institute for Bee Products and Health Science , Yamada Bee Company, Inc. , 194 Ichiba, Kagamino-cho, Tomata-gun 708-0393 , Japan
| | - Ken Hashimoto
- a Institute for Bee Products and Health Science , Yamada Bee Company, Inc. , 194 Ichiba, Kagamino-cho, Tomata-gun 708-0393 , Japan
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Resveratrol Derivative-Rich Melinjo Seed Extract Attenuates Skin Atrophy in Sod1-Deficient Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:391075. [PMID: 26180586 PMCID: PMC4477213 DOI: 10.1155/2015/391075] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 11/18/2014] [Indexed: 12/13/2022]
Abstract
The oxidative damages induced by a redox imbalance cause age-related changes in cells and tissues. Superoxide dismutase (SOD) enzymes play a pivotal role in the antioxidant system and they also catalyze superoxide radicals. Since the loss of cytoplasmic SOD (SOD1) resulted in aging-like phenotypes in several types of murine tissue, SOD1 is essential for the maintenance of tissue homeostasis. Melinjo (Gnetum gnemon Linn) seed extract (MSE) contains trans-resveratrol (RSV) and resveratrol derivatives, including gnetin C, gnemonoside A, and gnemonoside D. MSE intake also exerts no adverse events in human study. In the present studies, we investigated protective effects of MSE on age-related skin pathologies in mice. Orally MSE and RSV treatment reversed the skin thinning associated with increased oxidative damage in the Sod1−/− mice. Furthermore, MSE and RSV normalized gene expression of Col1a1 and p53 and upregulated gene expression of Sirt1 in skin tissues. In vitro experiments revealed that RSV significantly promoted the viability of Sod1−/− fibroblasts. These finding demonstrated that RSV in MSE stably suppressed an intrinsic superoxide generation in vivo and in vitro leading to protecting skin damages. RSV derivative-rich MSE may be a powerful food of treatment for age-related skin diseases caused by oxidative damages.
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MISHIMA K, SIREGAR YDI, KAWAMURA H, KAWAKAMI R, ITO S, INOUE Y, HIROTA T, HARADA T, KATO T, MISUMI M, SUETSUGU T, IRIE K, MISHIMA K, MUSTOFA S, HASANAH F, ZAHARO H, PUTRI LSE, SALIM A. Extraction of Resveratrol from Melinjo ( Gnetum gnemon L.) Seeds Using Mixtures of Liquid Carbon Dioxide and Ethanol. SOLVENT EXTRACTION RESEARCH AND DEVELOPMENT-JAPAN 2015. [DOI: 10.15261/serdj.22.69] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Kenji MISHIMA
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University
| | - Yusraini Dian Inayati SIREGAR
- Faculty of Science and Technology, Syarif Hidayatullah State Islamic University (UIN) Jakarta
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University
| | - Hirofumi KAWAMURA
- Department of Seasoning & Foods Division, San-Ei Gen F.F.I., Inc
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University
| | - Ryo KAWAKAMI
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University
| | - Shota ITO
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University
| | - Yuuta INOUE
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University
| | - Tetsuya HIROTA
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University
| | - Takunori HARADA
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University
| | - Takafumi KATO
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University
| | - Makoto MISUMI
- Department of Electronics Engineering and Computer Science, Faculty of Engineering, Fukuoka University
| | - Tadashi SUETSUGU
- Department of Electronics Engineering and Computer Science, Faculty of Engineering, Fukuoka University
| | - Keiichi IRIE
- Department of Neuropharmacology, Faculty of Pharmaceutical Sciences, Fukuoka University
| | - Kenichi MISHIMA
- Department of Neuropharmacology, Faculty of Pharmaceutical Sciences, Fukuoka University
| | - Salim MUSTOFA
- Research Center for Technology of Nuclear Industrial Material, Indonesia Nuclear Energy Agency
| | - Fauziyah HASANAH
- Faculty of Science and Technology, Syarif Hidayatullah State Islamic University (UIN) Jakarta
| | - Hilyatuz ZAHARO
- Faculty of Science and Technology, Syarif Hidayatullah State Islamic University (UIN) Jakarta
| | - Lily Surayya Eka PUTRI
- Faculty of Science and Technology, Syarif Hidayatullah State Islamic University (UIN) Jakarta
| | - Agus SALIM
- Faculty of Science and Technology, Syarif Hidayatullah State Islamic University (UIN) Jakarta
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Tamaki N, Cristina Orihuela-Campos R, Inagaki Y, Fukui M, Nagata T, Ito HO. Resveratrol improves oxidative stress and prevents the progression of periodontitis via the activation of the Sirt1/AMPK and the Nrf2/antioxidant defense pathways in a rat periodontitis model. Free Radic Biol Med 2014; 75:222-9. [PMID: 25091897 DOI: 10.1016/j.freeradbiomed.2014.07.034] [Citation(s) in RCA: 146] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 07/09/2014] [Accepted: 07/24/2014] [Indexed: 02/04/2023]
Abstract
Oxidative stress is a key factor regulating the systemic pathophysiological effects associated with periodontitis. Resveratrol is a phytochemical with antioxidant and anti-inflammatory properties that can reduce oxidative stress and inflammation. We hypothesized that resveratrol may prevent the progression of periodontitis and reduce systemic oxidative stress through the activation of the sirtuin 1 (Sirt1)/AMP-activated protein kinase (AMPK) and the nuclear factor E2-related factor 2 (Nrf2)/antioxidant defense pathways. Three groups of male Wistar rats (periodontitis treated with melinjo resveratrol, periodontitis without resveratrol, and control rats with no periodontitis or resveratrol treatment) were examined. A ligature was placed around the maxillary molars for 3 weeks to induce periodontitis, and the rats were then given drinking water with or without melinjo resveratrol. In rats with periodontitis, ligature placement induced alveolar bone resorption, quantified using three-dimensional images taken by micro-CT, and increased proinflammatory cytokine levels in gingival tissue. Melinjo resveratrol intake relieved alveolar bone resorption and activated the Sirt1/AMPK and the Nrf2/antioxidant defense pathways in inflamed gingival tissues. Further, melinjo resveratrol improved the systemic levels of 8-hydroxydeoxyguanosine, dityrosine, nitric oxide metabolism, nitrotyrosine, and proinflammatory cytokines. We conclude that oral administration of melinjo resveratrol may prevent the progression of ligature-induced periodontitis and improve systemic oxidative and nitrosative stress.
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Affiliation(s)
- Naofumi Tamaki
- Department of Preventive Dentistry and Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8504, Japan.
| | - Rita Cristina Orihuela-Campos
- Department of Preventive Dentistry and Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8504, Japan
| | - Yuji Inagaki
- Department of Periodontology and Endodontology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8504, Japan
| | - Makoto Fukui
- Department of Preventive Dentistry and Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8504, Japan
| | - Toshihiko Nagata
- Department of Periodontology and Endodontology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8504, Japan
| | - Hiro-O Ito
- Department of Preventive Dentistry and Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8504, Japan
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