1
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Bailly C. Covalent binding of withanolides to cysteines of protein targets. Biochem Pharmacol 2024; 226:116405. [PMID: 38969301 DOI: 10.1016/j.bcp.2024.116405] [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: 03/29/2024] [Revised: 05/26/2024] [Accepted: 07/01/2024] [Indexed: 07/07/2024]
Abstract
Withanolides represent an important category of natural products with a steroidal lactone core. Many of them contain an α,β-unsaturated carbonyl moiety with a high reactivity toward sulfhydryl groups, including protein cysteine thiols. Different withanolides endowed with marked antitumor and anti-inflammatory have been shown to form stable covalent complexes with exposed cysteines present in the active site of oncogenic kinases (BTK, IKKβ, Zap70), metabolism enzymes (Prdx-1/6, Pin1, PHGDH), transcription factors (Nrf2, NFκB, C/EBPβ) and other structural and signaling molecules (GFAP, β-tubulin, p97, Hsp90, vimentin, Mpro, IPO5, NEMO, …). The present review analyzed the covalent complexes formed through Michael addition alkylation reactions between six major withanolides (withaferin A, physalin A, withangulatin A, 4β-hydroxywithanolide E, withanone and tubocapsanolide A) and key cysteine residues of about 20 proteins and the resulting biological effects. The covalent conjugation of the α,β-unsaturated carbonyl system of withanolides with reactive protein thiols can occur with a large set of soluble and membrane proteins. It points to a general mechanism, well described with the leading natural product withaferin A, but likely valid for most withanolides harboring a reactive (electrophilic) enone moiety susceptible to react covalently with cysteinyl residues of proteins. The multiplicity of reactive proteins should be taken into account when studying the mechanism of action of new withanolides. Proteomic and network analyses shall be implemented to capture and compare the cysteine covalent-binding map for the major withanolides, so as to identify the protein targets at the origin of their activity and/or unwanted effects. Screening of the cysteinome will help understanding the mechanism of action and designing cysteine-reactive electrophilic drug candidates.
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Affiliation(s)
- Christian Bailly
- CNRS, Inserm, CHU Lille, UMR9020-U1277-CANTHER-Cancer Heterogeneity Plasticity and Resistance to Therapies, OncoLille Institute, University of Lille, F-59000 Lille, France; Institute of Pharmaceutical Chemistry Albert Lespagnol (ICPAL), Faculty of Pharmacy, University of Lille, F-59006 Lille, France; OncoWitan, Scientific Consulting Office, F-59290 Lille, France.
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2
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Geng Y, Liu X, Yu Y, Li W, Mou Y, Chen F, Hu X, Ji J, Ma L. From polyphenol to o-quinone: Occurrence, significance, and intervention strategies in foods and health implications. Compr Rev Food Sci Food Saf 2023; 22:3254-3291. [PMID: 37219415 DOI: 10.1111/1541-4337.13182] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 05/07/2023] [Accepted: 05/08/2023] [Indexed: 05/24/2023]
Abstract
Polyphenol oxidation is a chemical process impairing food freshness and other desirable qualities, which has become a serious problem in fruit and vegetable processing industry. It is crucial to understand the mechanisms involved in these detrimental alterations. o-Quinones are primarily generated by polyphenols with di/tri-phenolic groups through enzymatic oxidation and/or auto-oxidation. They are highly reactive species, which not only readily suffer the attack by nucleophiles but also powerfully oxidize other molecules presenting lower redox potentials via electron transfer reactions. These reactions and subsequent complicated reactions are capable of initiating quality losses in foods, such as browning, aroma loss, and nutritional decline. To attenuate these adverse influences, a variety of technologies have emerged to restrain polyphenol oxidation via governing different factors, especially polyphenol oxidases and oxygen. Despite tremendous efforts devoted, to date, the loss of food quality caused by quinones has remained a great challenge in the food processing industry. Furthermore, o-quinones are responsible for the chemopreventive effects and/or toxicity of the parent catechols on human health, the mechanisms by which are quite complex. Herein, this review focuses on the generation and reactivity of o-quinones, attempting to clarify mechanisms involved in the quality deterioration of foods and health implications for humans. Potential innovative inhibitors and technologies are also presented to intervene in o-quinone formation and subsequent reactions. In future, the feasibility of these inhibitory strategies should be evaluated, and further exploration on biological targets of o-quinones is of great necessity.
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Affiliation(s)
- Yaqian Geng
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Xinyu Liu
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Yiran Yu
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Wei Li
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Yao Mou
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Fang Chen
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Xiaosong Hu
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Junfu Ji
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Lingjun Ma
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
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3
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Prasad S, Kumar V, Singh C, Singh A. Crosstalk between phytochemicals and inflammatory signaling pathways. Inflammopharmacology 2023; 31:1117-1147. [PMID: 37022574 DOI: 10.1007/s10787-023-01206-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 03/21/2023] [Indexed: 04/07/2023]
Abstract
Novel bioactive constituents from natural sources are actively being investigated. The phytochemicals in these phenolic compounds are believed to have a variety of beneficial effects on human health. Several phenolic compounds have been found in plants. The antioxidant potential of phenols has been discussed in numerous studies along with their anti-inflammatory effects on pro-inflammatory cytokine, inducible cyclooxygenase-2, and nitric oxide synthase. Through current study, an attempt is made to outline and highlight a wide variety of inflammation-associated signaling pathways that have been modified by several natural compounds. These signaling pathways include nuclear factor-kappa B (NF-кB), activator protein (AP)-1, protein tyrosine kinases (PTKs), mitogen-activated protein kinases (MAPKs), nuclear factor erythroid 2-related factor 2 (Nrf2) transcription factors, tyrosine phosphatidylinositol 3-kinase (PI3K)/AKT, and the ubiquitin-proteasome system. In light of the influence of natural substances on signaling pathways, their impact on the production of inflammatory mediator is highlighted in this review.
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Affiliation(s)
- Sonima Prasad
- Department of Pharmacology, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Vishal Kumar
- Department of Pharmacology, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Charan Singh
- Department of Pharmaceutical Sciences, School of Pharmacy, H.N.B. Garhwal University, Srinagar, Garhwal, 246174, Uttarakhand, India
| | - Arti Singh
- Department of Pharmacology, ISF College of Pharmacy, Moga, 142001, Punjab, India.
- Affiliated to IK Gujral Punjab Technical University, Jalandhar, Punjab, 144603, India.
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Rakib A, Mandal M, Showkat A, Kiran S, Mazumdar S, Singla B, Bajwa A, Kumar S, Park F, Singh UP. Piceatannol induces regulatory T cells and modulates the inflammatory response and adipogenesis. Biomed Pharmacother 2023; 161:114514. [PMID: 36921534 PMCID: PMC10071559 DOI: 10.1016/j.biopha.2023.114514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023] Open
Abstract
The beneficial effects of the polyphenolic compound piceatannol (PC) has been reported for metabolic diseases, antiproliferative, antioxidant, and anti-cancer properties. Despite its beneficial effects on inflammatory diseases, little is known about how PC regulates inflammatory responses and adipogenesis. Therefore, this study was designed to determine the effects of PC on the inflammatory response and adipogenesis. The effect of PC on splenocytes, 3T3-L1 adipocytes, and RAW264.7 macrophages was analyzed by flow cytometry, qRT-PCR, morphometry, and western blot analysis. PC induced apoptosis in activated T cells in a dose-dependent manner using stimulated splenocytes and reduced the activation of T cells, altered T cell frequency, and interestingly induced the frequency of regulatory T (Treg) cells as compared to controls. PC suppressed the expression of TNF-α, iNOS, IL-6R, and NF-κB activation in RAW264.7 macrophages after lipopolysaccharides (LPS)-induction as compared to the control. Interestingly, PC altered the cell morphology of 3T3-L1 adipocytes with a concomitant decrease in cell volume, lipid deposition, and TNF-α expression, but upregulation of leptin and IL-1β. Our findings suggested that PC induced apoptosis in activated T cells, decreased immune cell activation and inflammatory response, and hindered adipogenesis. This new set of data provides promising hope as a new therapeutic to treat both inflammatory disease and obesity.
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Affiliation(s)
- Ahmed Rakib
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Mousumi Mandal
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Anaum Showkat
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Sonia Kiran
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Soumi Mazumdar
- Department of Physiology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Bhupesh Singla
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Aman Bajwa
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, USA; Department of Genetics, Genomics, and Informatics, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Santosh Kumar
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Frank Park
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Udai P Singh
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, USA.
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Kinoshita K, Nakabayashi S, Ishikura A, Fujihara K, Hirabayashi S, Koike S, Sasaki H, Ogasawara Y, Koyama K. Inhibition of Amyloid-β Aggregation by p-Terphenyls from the Mushroom Polyozellus multiplex and Their Neuroprotective Effects. HETEROCYCLES 2022. [DOI: 10.3987/com-22-14711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Kimura Y. Long-Term Oral Administration of Piceatannol (3,5,3',4'-Tetrahydroxystilbene) Attenuates Colon Tumor Growth Induced by Azoxymethane Plus Dextran Sulfate Sodium in C57BL/6J Mice. Nutr Cancer 2021; 74:2184-2195. [PMID: 34622729 DOI: 10.1080/01635581.2021.1985532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AIM The effects of 3,5,3',4'-tetrahydroxystilbene (piceatannol) on azoxymethane (AOM)/dextran sulfate sodium (DSS)-induced colon cancer growth and changes in IL-1β, IL-6, tumor necrosis factor-α (cytokines), MCP-1, vascular endothelial growth factor, and PD-1 colon levels were investigated herein. METHODS AOM (10 mg/kg, i.p.) on day 0 induced colorectal carcinogenesis. On day 3, mice were provided with water containing 1.5% (w/v) DSS ad libitum for 3 day, and this 3-day drinking protocol was repeated twice. Piceatannol (5 and 12.5 mg/kg, twice daily) was orally administered to mice for 7-, 7-, 7-, and 6-day and then discontinued for 14-, 15-, and 16-day. Cytokines, chemokine, and PD-1 colon levels were measured by the respective ELISA kits. RESULTS In mice administered piceatannol (12.5 mg/kg), the tumor number, tumor area, and Ki-67-positive cell numbers decreased by 30.1%, 57.2%, and 89.1%, respectively, colon MCP-1 and PD-1 levels showed reductions of 43.8% and 70.9%, respectively, and COX-2-positive cell numbers declined by 60.2%. CONCLUSIONS The inhibitory effects of piceatannol on AOM/DSS-induced colon tumor growth appear to be associated with reductions in colon MCP-1 and PD-1 levels through the downregulated expression of COX-2 in the tumor microenvironment.
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Affiliation(s)
- Yoshiyuki Kimura
- Department of Functional Biomedicine, Graduate School of Medicine, Ehime University, Toon City, Ehime, Japan
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Gerardi G, Cavia-Saiz M, Muñiz P. From winery by-product to healthy product: bioavailability, redox signaling and oxidative stress modulation by wine pomace product. Crit Rev Food Sci Nutr 2021; 62:7427-7448. [PMID: 33951976 DOI: 10.1080/10408398.2021.1914542] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The wine pomace is the main winery by-products that suppose an economic and environmental problem and their use as a functional ingredient are being increasingly recognized as a good and inexpensive source of bioactive compounds. In this sense, it is known the potential health properties of wine pomace products in the prevention of disorders associated with oxidative stress and inflammation such as endothelial dysfunction, hypertension, hyperglycemia, diabetes, obesity. Those effects are due to the bioactive compounds of wine pomace and the mechanisms concern especially modulation of antioxidant/prooxidant activity, improvement of nitric oxide bioavailability, reduction of pro-inflammatory cytokines and modulation of antioxidant/inflammatory signal pathways. This review mainly summarizes the mechanisms of wine pomace products as modulators of oxidative status involved in cell pathologies as well as their potential therapeutic use for cardiovascular diseases. For this purpose, the review provides an overview of the findings related to the wine pomace bioactive compounds profile, their bioavailability and the action mechanisms for maintaining the redox cell balance involved in health benefits. The review suggests an important role for wine pomace product in cardiovascular diseases prevention and their regular food intake may attenuate the development and progression of comorbidities associated with cardiovascular diseases.
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Affiliation(s)
- Gisela Gerardi
- Department of Biotechnology and Food Science, Faculty of Sciences, University of Burgos, Burgos, Spain
| | - Mónica Cavia-Saiz
- Department of Biotechnology and Food Science, Faculty of Sciences, University of Burgos, Burgos, Spain
| | - Pilar Muñiz
- Department of Biotechnology and Food Science, Faculty of Sciences, University of Burgos, Burgos, Spain
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Dai F, Du YT, Zheng YL, Zhou B. Inhibiting NF-κB-Mediated Inflammation by Catechol-Type Diphenylbutadiene via an Intracellular Copper- and Iron-Dependent Pro-Oxidative Role. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:10029-10035. [PMID: 32812423 DOI: 10.1021/acs.jafc.0c04399] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Chronic inflammation mediated by nuclear factor-κB (NF-κB) plays a crucial role in the development of cancer. As part of our continuous efforts placed on investigating anticancer mechanisms of dietary catechols, we further applied catechol-type diphenylbutadiene (3,4-DHB) as a model molecule to probe whether it inhibits inflammation by its pro-oxidative role. Employing lipopolysaccharide-stimulated RAW264.7 cells as a model of inflammation, we validated that benefiting from its catechol moiety, 3,4-DHB inhibited significantly the LPS-induced formation of NO (11.48 ± 0.39 μM) compared with the only LPS-stimulated group (31.8 ± 1.78 μM) with an inhibitory rate of 64% at 5 μM, expression of iNOS and COX-2 proteins, phosphorylation of IkB kinase and IkBα, and nuclear translocation of NF-κB. Noticeably, its inhibitory activity against the NF-κB-mediated inflammation can be obviously revised by pretreatment of the cells with dithiothreitol (a quencher of both electrophilic o-quinone and ROS), neocuproine (a specific chelating agent for copper ions), and deferoxamine (a specific chelating agent for iron ions). The above results support that depending on intracellular copper and iron ions, 3,4-DHB, a pro-electrophile, can be converted into its corresponding o-quinone electrophile together with the generation of ROS, a pro-oxidative event that mediates its inhibitory activity against NF-κB signaling and inflammation. The copper- and iron-dependent inhibition against inflammation supports that dietary catechols are probably pro-oxidative anti-inflammatory agents.
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Affiliation(s)
- Fang Dai
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu 730000, China
| | - Yu-Ting Du
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu 730000, China
- Department of Chemistry, Xinzhou Teachers University, Xinzhou, Shanxi 034000, China
| | - Ya-Long Zheng
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu 730000, China
| | - Bo Zhou
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu 730000, China
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9
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Impregnation of passion fruit bagasse extract in alginate aerogel microparticles. Int J Biol Macromol 2020; 155:1060-1068. [DOI: 10.1016/j.ijbiomac.2019.11.070] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 10/24/2019] [Accepted: 11/07/2019] [Indexed: 11/22/2022]
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10
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Banik K, Ranaware AM, Harsha C, Nitesh T, Girisa S, Deshpande V, Fan L, Nalawade SP, Sethi G, Kunnumakkara AB. Piceatannol: A natural stilbene for the prevention and treatment of cancer. Pharmacol Res 2020; 153:104635. [DOI: 10.1016/j.phrs.2020.104635] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/19/2019] [Accepted: 01/06/2020] [Indexed: 12/13/2022]
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Somu C, Mohan CD, Ambekar S, Dukanya, Rangappa S, Baburajeev CP, Sukhorukov A, Mishra S, Shanmugam MK, Chinnathambi A, Awad Alahmadi T, Alharbi SA, Basappa, Rangappa KS. Identification of a novel 1,2 oxazine that can induce apoptosis by targeting NF-κB in hepatocellular carcinoma cells. ACTA ACUST UNITED AC 2020; 25:e00438. [PMID: 32140443 PMCID: PMC7044713 DOI: 10.1016/j.btre.2020.e00438] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/21/2020] [Accepted: 02/17/2020] [Indexed: 02/07/2023]
Abstract
10 new 1,2-Oxazines were synthesized and evaluated for their anticancer activity. 3i is lead cytotoxic agent which increased SubG1 cell population of HCC cells. p65 siRNA transfection significantly reduced the 3i induced DNA fragmentation. 3i decreased DNA binding and NF-κB-dependent luciferase reporter gene expression.
Constitutive activation of NF-κB is associated with proinflammatory diseases and suppression of the NF-κB signaling pathway has been considered as an effective therapeutic strategy in the treatment of various cancers including hepatocellular carcinoma (HCC). Herein, we report the synthesis of 1,2 oxazines and their anticancer potential. The antiproliferative studies presented 3-((4-(1H-benzo[d]imidazol-2-yl)piperidin-1-yl)methyl)-4-phenyl-4,4a,5,6,7,7a-hexahydrocyclopenta [e][1,2]oxazine(3i) as a lead cytotoxic agent against HCC cells. Flow cytometric analysis showed that 3i caused a substantial increase in the subG1 cell population. Annexin-V-FITC-PI staining showed a significant increase in the percentage of apoptotic cells on treatment with 3i. Transfection with p65 siRNA significantly reduced the 3i induced DNA fragmentation indicating that 3i may primarily mediate its proapoptotic effects by abrogating the NF-κB signaling. In addition, treatment of HCC cells with 3i decreased the DNA binding ability of NF-κB and NF-κB-dependent luciferase expression. Taken together, this report introduces 1,2-oxazine that potently targets the NF-κB signaling pathway in HCC cells.
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Affiliation(s)
- Chaithanya Somu
- Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore 570006, India
| | | | - Sachin Ambekar
- Laboratory of Chemical Biology, Department of Chemistry, Bangalore University, Central College Campus, Palace Road, Bangalore 560001, India
| | - Dukanya
- Laboratory of Chemical Biology, Department of Studies in Organic Chemistry, University of Mysore, Manasagangotri, Mysore 570006, India
| | - Shobith Rangappa
- Adichunchanagiri Institute for Molecular Medicine, BG Nagara, Nagamangala Taluk, Mandya district-571448, India
| | - C P Baburajeev
- Laboratory of Chemical Biology, Department of Chemistry, Bangalore University, Central College Campus, Palace Road, Bangalore 560001, India
| | - Alexey Sukhorukov
- N.D. Zelinsky Institute of Organic Chemistry, Leninsky Prospect, Moscow 119991, Russia
| | - Srishti Mishra
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore 117600, Singapore
| | - Muthu K Shanmugam
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore 117600, Singapore
| | - Arunachalam Chinnathambi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh -11451, Saudi Arabia
| | - Tahani Awad Alahmadi
- Department of Pediatrics, College of Medicine and King Khalid University Hospital, King Saud University Medical City, Riyadh 11461, Saudi Arabia
| | - Sulaiman Ali Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh -11451, Saudi Arabia
| | - Basappa
- Laboratory of Chemical Biology, Department of Chemistry, Bangalore University, Central College Campus, Palace Road, Bangalore 560001, India.,Laboratory of Chemical Biology, Department of Studies in Organic Chemistry, University of Mysore, Manasagangotri, Mysore 570006, India
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Plant-Derived Bioactives and Oxidative Stress-Related Disorders: A Key Trend towards Healthy Aging and Longevity Promotion. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10030947] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Plants and their corresponding botanical preparations have been used for centuries due to their remarkable potential in both the treatment and prevention of oxidative stress-related disorders. Aging and aging-related diseases, like cardiovascular disease, cancer, diabetes, and neurodegenerative disorders, which have increased exponentially, are intrinsically related with redox imbalance and oxidative stress. Hundreds of biologically active constituents are present in each whole plant matrix, providing promissory bioactive effects for human beings. Indeed, the worldwide population has devoted increased attention and preference for the use of medicinal plants for healthy aging and longevity promotion. In fact, plant-derived bioactives present a broad spectrum of biological effects, and their antioxidant, anti-inflammatory, and, more recently, anti-aging effects, are considered to be a hot topic among the medical and scientific communities. Nonetheless, despite the numerous biological effects, it should not be forgotten that some bioactive molecules are prone to oxidation and can even exert pro-oxidant effects. In this sense, the objective of the present review is to provide a detailed overview of plant-derived bioactives in age-related disorders. Specifically, the role of phytochemicals as antioxidants and pro-oxidant agents is carefully addressed, as is their therapeutic relevance in longevity, aging-related disorders, and healthy-aging promotion. Finally, an eye-opening look into the overall evidence of plant compounds related to longevity is presented.
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13
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Hu X, Dong D, Xia M, Yang Y, Wang J, Su J, Sun L, Yu H. Oxidative stress and antioxidant capacity: development and prospects. NEW J CHEM 2020. [DOI: 10.1039/d0nj02041a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Signaling pathways regulating redox reactions are activated to balance the redox status and maintain the normal function of cells.
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Affiliation(s)
- Xiaoqing Hu
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
| | - Delu Dong
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
| | - Meihui Xia
- The First Hospital of Jilin University
- Changchun 130021
- P. R. China
| | - Yimeng Yang
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
| | - Jiabin Wang
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
| | - Jing Su
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
| | - Liankun Sun
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
| | - Huimei Yu
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
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14
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Wen B, Gorycki P. Bioactivation of herbal constituents: mechanisms and toxicological relevance. Drug Metab Rev 2019; 51:453-497. [DOI: 10.1080/03602532.2019.1655570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Bo Wen
- Department of Drug Metabolism and Pharmacokinetics, GlaxoSmithKline, Collegeville, PA, USA
| | - Peter Gorycki
- Department of Drug Metabolism and Pharmacokinetics, GlaxoSmithKline, Collegeville, PA, USA
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15
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Gerardi G, Cavia-Saiz M, Rivero-Pérez MD, González-SanJosé ML, Muñiz P. Modulation of Akt-p38-MAPK/Nrf2/SIRT1 and NF-κB pathways by wine pomace product in hyperglycemic endothelial cell line. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.05.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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16
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Leláková V, Šmejkal K, Jakubczyk K, Veselý O, Landa P, Václavík J, Bobáľ P, Pížová H, Temml V, Steinacher T, Schuster D, Granica S, Hanáková Z, Hošek J. Parallel in vitro and in silico investigations into anti-inflammatory effects of non-prenylated stilbenoids. Food Chem 2019; 285:431-440. [PMID: 30797367 DOI: 10.1016/j.foodchem.2019.01.128] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 12/07/2018] [Accepted: 01/25/2019] [Indexed: 12/25/2022]
Abstract
Stilbenoids represent a large group of bioactive compounds, which occur in food and medicinal plants. Twenty-five stilbenoids were screened in vitro for their ability to inhibit COX-1, COX-2 and 5-LOX. Piceatannol and pinostilbene showed activity comparable to the zileuton and ibuprofen, respectively. The anti-inflammatory potential of stilbenoids was further evaluated using THP-1 human monocytic leukemia cell line. Tests of the cytotoxicity on the THP-1 and HCT116 cell lines showed very low toxic effects. The tested stilbenoids were evaluated for their ability to attenuate the LPS-stimulated activation of NF-κB/AP-1. Most of the tested substances reduced the activity of NF-κB/AP-1 and later attenuated the expression of TNF-α. The effects of selected stilbenoids were further investigated on inflammatory signaling pathways. Non-prenylated stilbenoids regulated attenuation of NF-ĸB/AP-1 activity upstream by inhibiting the phosphorylation of MAPKs. A docking study used to in silico analyze the tested compounds confirmed their interaction with NF-ĸB, COX-2 and 5-LOX.
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Affiliation(s)
- Veronika Leláková
- Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic; Department of Molecular Biology and Pharmaceutical Biotechnology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Karel Šmejkal
- Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic.
| | - Karolina Jakubczyk
- Laboratory of Plant Biotechnologies, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic
| | - Ondřej Veselý
- Laboratory of Plant Biotechnologies, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic; Department of Quality of Agricultural Products, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcka129, 165 21 Prague 6 - Suchdol, Czech Republic
| | - Přemysl Landa
- Laboratory of Plant Biotechnologies, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic
| | - Jiří Václavík
- Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Pavel Bobáľ
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Hana Pížová
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Veronika Temml
- Department of Pharmacy/Pharmacognosy and Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Theresa Steinacher
- Department of Pharmacy/Pharmaceutical Chemistry and Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Daniela Schuster
- Institute of Pharmacy, Department of Pharmaceutical and Medicinal Chemistry, Paracelsus Medical University Salzburg, Strubergasse 21, 5020 Salzburg, Austria
| | - Sebastian Granica
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Zuzana Hanáková
- Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Jan Hošek
- Department of Molecular Biology and Pharmaceutical Biotechnology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
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17
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Liu Y, Kim S, Kim YJ, Perumalsamy H, Lee S, Hwang E, Yi TH. Green synthesis of gold nanoparticles using Euphrasia officinalisleaf extract to inhibit lipopolysaccharide-induced inflammation through NF-κB and JAK/STAT pathways in RAW 264.7 macrophages. Int J Nanomedicine 2019; 14:2945-2959. [PMID: 31114201 PMCID: PMC6487898 DOI: 10.2147/ijn.s199781] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Gold nanoparticles (AuNPs) have potential applications in the treatment and diagnosis process, which are attributed to their biocompatibility and high efficiency of drug delivery. In the current study, we utilized an extract of Euphrasia officinalis, a traditional folk medicine, to synthesize gold nanoparticles (EO-AuNPs), and investigated their anti-inflammatory effects on lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. Materials and methods The AuNPs were synthesized from an ethanol extract of E. officinalis leaves and characterized using several analytical techniques. Anti-inflammatory activities of EO-AuNPs were detected by a model of LPS-induced upregulation of inflammatory mediators and cytokines including nitric oxide (NO), inducible nitric oxide synthase (iNOS), tumor necrosis factor-α (TNF-α), IL-1β, and IL-6 in RAW 264.7 cells. The activation of nuclear factor (NF)-κB and Janus kinase/signal transducer and activators of transcription (JAK/STAT) signaling pathways was investigated by Western blot. Results The results confirmed the successful synthesis of AuNPs by E. officinalis. Transmission electron microscopy images showed obvious uptake of EO-AuNPs and internalization into intracellular membrane–bound compartments, resembling endosomes and lysosomes by RAW 264.7 cells. Cell viability assays showed that EO-AuNPs exhibited little cytotoxicity in RAW 264.7 cells at 100 µg/mL concentration after 24 hours. EO-AuNPs significantly suppressed the LPS-induced release of NO, TNF-α, IL-1β, and IL-6 as well as the expression of the iNOS gene and protein in RAW 264.7 cells. Further experiments demonstrated that pretreatment with EO-AuNPs significantly reduced the phosphorylation and degradation of inhibitor kappa B-alpha and inhibited the nuclear translocation of NF-κB p65. In addition, EO-AuNPs suppressed LPS-stimulated inflammation by blocking the activation of JAK/STAT pathway. Conclusion The synthesized EO-AuNPs showed anti-inflammatory activity in LPS-induced RAW 264.7 cells, suggesting they may be potential candidates for treating inflammatory-mediated diseases.
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Affiliation(s)
- Ying Liu
- Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do, Republic of Korea, ;
| | - Senghyun Kim
- Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea, ;
| | - Yeon Ju Kim
- Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do, Republic of Korea, ; .,Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea, ;
| | - Haribalan Perumalsamy
- Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea, ;
| | - Seungah Lee
- Department of Applied Chemistry and Institute of Natural Sciences, College of Applied Science, Kyung Hee University, Yongin-si, Republic of Korea
| | - Eunson Hwang
- Snow White Factory Co., Ltd., Gangnamgu, Seoul, Republic of Korea
| | - Tae-Hoo Yi
- Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do, Republic of Korea, ; .,Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea, ;
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18
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Peng M, Qiang L, Xu Y, Li C, Li T, Wang J. Modification of Cysteine 179 in IKKβ by Ursolic Acid Inhibits Titanium-Wear-Particle-Induced Inflammation, Osteoclastogenesis, and Hydroxylapatite Resorption. Mol Pharm 2018; 15:5244-5251. [PMID: 30265541 DOI: 10.1021/acs.molpharmaceut.8b00747] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Aseptic loosening of artificial joints mainly accounts for the failure of arthroplasty. We previously reported that ursolic acid (UA) inhibited osteolysis caused by titanium (Ti) wear particles via suppression of NF-kB signaling. In the present study, that the suppressive effect of UA on Ti-particle-induced inflammation and osteoclastogenesis targets on IKKβ cys-179 was demonstrated. A retrovirus packaged IKKβC179A plasmid with a Cys-179 mutation replaced by Ala was constructed. qRT-PCR, immunoblot, and immunofluorescence were used to evaluate the gene expressions. Secreted inflammatory cytokines were detected by ELISA. Formation and function of osteoclastogenesis were evaluated by TRAP stain and hydroxylapatite resorption assays. As a result, a mutation of IKKβC179A rescued the therapeutic effect of UA on Ti-particle-induced inflammation, including morphological transforms, upregulation of iNOS and COX-2, increased secretions of TNF-α, IL-1β, and IL-6, and decreased secretion of IL-10. Meanwhile, inhibition of osteoclastogenesis and hydroxylapatite resorptions were restored by transfection of IKKβC179A. Phosphorylations of p65 and the IKKα/β complex and translocation of p65 into the nucleus were suppressed by UA but rescued by a mutation of IKKβC179A. Conclusively, UA inhibits Ti-wear-particle-induced inflammation, osteoclastogenesis, and hydroxylapatite resorption via modifying cysteine 179 of IKKβ.
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Affiliation(s)
- Mingzheng Peng
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital , Shanghai Jiao Tong University School of Medicine , 639 Zhizaoju Road , Shanghai 200011 , China
| | - Lei Qiang
- Southwest Jiaotong University College Of Medicine , No.111, North Section, Second Ring Road , Chengdu , Sichuan 610031 , P.R. China
| | - Yan Xu
- Southwest Jiaotong University College Of Medicine , No.111, North Section, Second Ring Road , Chengdu , Sichuan 610031 , P.R. China
| | - Cuidi Li
- Med-X Research Institute, School of Biomedical Engineering , Shanghai Jiao Tong University , 1804 Huashan Road , Shanghai 200030 , China
| | - Tao Li
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital , Shanghai Jiao Tong University School of Medicine , 639 Zhizaoju Road , Shanghai 200011 , China
| | - Jinwu Wang
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital , Shanghai Jiao Tong University School of Medicine , 639 Zhizaoju Road , Shanghai 200011 , China
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19
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Bolton JL, Dunlap TL, Dietz BM. Formation and biological targets of botanical o-quinones. Food Chem Toxicol 2018; 120:700-707. [PMID: 30063944 PMCID: PMC6643002 DOI: 10.1016/j.fct.2018.07.050] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/23/2018] [Accepted: 07/26/2018] [Indexed: 01/12/2023]
Abstract
The formation of o-quinones from direct 2-electron oxidation of catechols and/or two successive one electron oxidations could explain the cytotoxic/genotoxic and/or chemopreventive effects of several phenolic botanical extracts. For example, poison ivy contains urushiol, an oily mixture, which is oxidized to various o-quinones likely resulting in skin toxicity through oxidative stress and alkylation mechanisms resulting in immune responses. Green tea contains catechins which are directly oxidized to o-quinones by various oxidative enzymes. Alternatively, phenolic botanicals could be o-hydroxylated by P450 to form catechols in vivo which are oxidized to o-quinones. Examples include, resveratrol which is oxidized to piceatannol and further oxidized to the o-quinone. Finally, botanical o-quinones can be formed by O-dealkylation of O-alkoxy groups or methylenedioxy rings resulting in catechols which are further oxidized to o-quinones. Examples include safrole, eugenol, podophyllotoxin and etoposide, as well as methysticin. Once formed these o-quinones have a variety of biological targets in vivo resulting in various biological effects ranging from chemoprevention - > no effect - > toxicity. This U-shaped biological effect curve has been described for a number of reactive intermediates including o-quinones. The current review summarizes the latest data on the formation and biological targets of botanical o-quinones.
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Affiliation(s)
- Judy L Bolton
- Department of Medicinal Chemistry and Pharmacognosy (M/C 781), College of Pharmacy, University of Illinois at Chicago, 833S. Wood Street, Chicago, IL, 60612-7231, United States.
| | - Tareisha L Dunlap
- Department of Medicinal Chemistry and Pharmacognosy (M/C 781), College of Pharmacy, University of Illinois at Chicago, 833S. Wood Street, Chicago, IL, 60612-7231, United States
| | - Birgit M Dietz
- Department of Medicinal Chemistry and Pharmacognosy (M/C 781), College of Pharmacy, University of Illinois at Chicago, 833S. Wood Street, Chicago, IL, 60612-7231, United States
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20
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Takakura K, Takatou S, Tomiyama R, Le TM, Nguyen DT, Nakamura Y, Konishi T, Matsugo S, Hori O. Inhibition of nuclear factor-κB p65 phosphorylation by 3,4-dihydroxybenzalacetone and caffeic acid phenethyl ester. J Pharmacol Sci 2018; 137:248-255. [PMID: 30037569 DOI: 10.1016/j.jphs.2018.07.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 06/05/2018] [Accepted: 06/23/2018] [Indexed: 01/14/2023] Open
Abstract
3,4-Dihydroxybenzalacetone (DBL) and caffeic acid phenethyl ester (CAPE) are both catechol-containing phenylpropanoid derivatives with various bioactivities. In the present study, we compared the effects of these compounds and other phenylpropanoid derivatives on the activation of nuclear factor-κB (NF-κB) signaling, a major pathway in the inflammatory response, using RAW 264.7 cells. Lipopolysaccharide (LPS)- and interferon γ-induced production of nitrite was strongly suppressed by CAPE and, to a lesser extent, by DBL and caffeic acid ethyl ester. Consistent with these results, induction of NF-κB downstream genes, such as Nitric oxide synthase, interleukin 1 beta, and interleukin 6, and translocation of NF-κB p65 to the nucleus were reduced after LPS stimulation, to a greater extent with CAPE than with DBL. Interestingly, the phosphorylation of p65 was reduced by both compounds, especially by CAPE, even when the level of IκB was not altered. Furthermore, the thiol groups of p65 were modified by CAPE, and the inhibitory effects of CAPE and DBL on the p65 phosphorylation and nitrite production were reversed by pretreatment with thiol-containing reagents. These results suggest that CAPE has strong inhibitory effects on the NF-κB activation that are associated with the modification of thiol groups and phosphorylation of p65.
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Affiliation(s)
- Ken Takakura
- Graduate School of Natural Science and Technology, Division of Natural System, Kanazawa University, Kanazawa, Ishikawa, Japan; Graduate School of Medical Sciences, Department of Neuroanatomy, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Shouhei Takatou
- Graduate School of Natural Science and Technology, Division of Natural System, Kanazawa University, Kanazawa, Ishikawa, Japan; Graduate School of Medical Sciences, Department of Neuroanatomy, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Ryoichi Tomiyama
- Graduate School of Natural Science and Technology, Division of Natural System, Kanazawa University, Kanazawa, Ishikawa, Japan; Graduate School of Medical Sciences, Department of Neuroanatomy, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Thuong Manh Le
- Graduate School of Medical Sciences, Department of Neuroanatomy, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Dinh Thi Nguyen
- Graduate School of Medical Sciences, Department of Neuroanatomy, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Yutaka Nakamura
- Faculty of Applied Life Sciences, Niigata University of Pharmacy & Applied Life Sciences (NUPALS), Niigata, Niigata, Japan
| | - Tetsuya Konishi
- Niigata University of Pharmacy & Applied Life Sciences (NUPALS), LIAISON R/D Center, Niigata, Niigata, Japan
| | - Seiichi Matsugo
- Graduate School of Natural Science and Technology, Division of Natural System, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Osamu Hori
- Graduate School of Medical Sciences, Department of Neuroanatomy, Kanazawa University, Kanazawa, Ishikawa, Japan.
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21
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Wang L, Pan MH, Lo CY, Zhao H, Li S, Ho CT, Yang G. Anti-fibrotic activity of polyphenol-enriched sugarcane extract in rats via inhibition of p38 and JNK phosphorylation. Food Funct 2018; 9:951-958. [DOI: 10.1039/c7fo01617d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Sugarcane (Saccharum officinarum L.), which is one of the most important sources of sugar, is also rich in polyphenolic compounds.
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Affiliation(s)
- Liwen Wang
- Hubei Key Laboratory for Processing & Application of Catalytic Materials
- College of Chemistry & Chemical Engineering
- Huanggang Normal University
- China
- Tianjin Key Laboratory of Food and Biotechnology
| | - Min-Hsiung Pan
- Institute of Food Science and Technology
- National Taiwan University
- Taipei 10617
- Taiwan
- Department of Medical Research
| | - Chih-Yu Lo
- Department of Food Science
- National Chiayi University
- Chiayi 60004
- Taiwan
| | - Hui Zhao
- Tianjin Key Laboratory of Food and Biotechnology
- School of Biotechnology and Food Science
- Tianjin University of Commerce
- Tianjin
- China
| | - Shiming Li
- Hubei Key Laboratory for Processing & Application of Catalytic Materials
- College of Chemistry & Chemical Engineering
- Huanggang Normal University
- China
| | - Chi-Tang Ho
- Department of Food Science
- Rutgers University
- New Brunswick
- USA
| | - Guliang Yang
- Hubei Key Laboratory for Processing & Application of Catalytic Materials
- College of Chemistry & Chemical Engineering
- Huanggang Normal University
- China
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22
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Dvorakova M, Landa P. Anti-inflammatory activity of natural stilbenoids: A review. Pharmacol Res 2017; 124:126-145. [DOI: 10.1016/j.phrs.2017.08.002] [Citation(s) in RCA: 136] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 07/31/2017] [Accepted: 08/03/2017] [Indexed: 01/20/2023]
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23
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Kang S, Kim W, Jeong S, Lee Y, Nam J, Lee S, Jung Y. Oxidized 5-aminosalicylic acid activates Nrf2-HO-1 pathway by covalently binding to Keap1: Implication in anti-inflammatory actions of 5-aminosalicylic acid. Free Radic Biol Med 2017; 108:715-724. [PMID: 28473247 DOI: 10.1016/j.freeradbiomed.2017.04.366] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 03/23/2017] [Accepted: 04/27/2017] [Indexed: 10/19/2022]
Abstract
Mesalazine (5-aminosalicylic acid, 5-ASA), a currently used drug for anti-inflammatory bowel disease, is easily oxidized by HOCl, a strong oxidant generated in gut inflammation, to produce electrophilic quinones. We investigated whether this chemical feature has an implication in the anti-inflammatory pharmacology of 5-ASA. Human colon carcinoma HCT116 cells were treated with HOCl-reacted 5-ASA. Oxidized 5-ASA activated Nrf2 while 5-ASA itself was not effective. Activation of Nrf2 led to induction of hemeoxygenase (OH)-1, an anti-inflammatory enzyme. Western blot analysis of Keap1, a cytosolic repressor of Nrf2, following precipitation of biotin-labeled proteins in cell lysates treated with biotin-tagged 5-ASA, revealed a much greater amount of Keap1 when biotin-tagged 5-ASA was oxidized with HOCl. Precipitation of Keap1 was attenuated markedly by pretreatment with oxidized 5-ASA or a sulfhydryl donor. In addition, treatment with oxidized 5-ASA in cell lysates reduced the Keap1 amount that coimmunoprecipitated with Nrf2. In parallel, rectal administration of 5-ASA increased the level of HO-1 and nuclear Nrf2 in the inflamed colonic tissues, but not in normal colonic tissues. Moreover, oral gavage of sulfasalazine, a colon-specific prodrug of 5-ASA currently used clinically, activated the Nrf2-HO-1 pathway in the colonic tissues where inflammation was in progress, which was not observed when inflammation subsided. Collectively, our data suggest that Nrf2-HO-1 pathway is involved in the anti-inflammatory pharmacology of 5-ASA, which was likely being exerted exclusively in the inflammatory state.
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Affiliation(s)
- Sookjin Kang
- College of Pharmacy, Pusan National University, Busan 609-735, South Korea
| | - Wooseong Kim
- College of Pharmacy, Pusan National University, Busan 609-735, South Korea
| | - Seongkeun Jeong
- College of Pharmacy, Pusan National University, Busan 609-735, South Korea
| | - Yonghyun Lee
- KAIST Institute for the BioCentury, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Joon Nam
- College of Pharmacy, Pusan National University, Busan 609-735, South Korea
| | - Sunyoung Lee
- College of Pharmacy, Pusan National University, Busan 609-735, South Korea
| | - Yunjin Jung
- College of Pharmacy, Pusan National University, Busan 609-735, South Korea.
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24
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Measurement and Clinical Significance of Biomarkers of Oxidative Stress in Humans. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:6501046. [PMID: 28698768 PMCID: PMC5494111 DOI: 10.1155/2017/6501046] [Citation(s) in RCA: 432] [Impact Index Per Article: 61.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/26/2017] [Accepted: 05/21/2017] [Indexed: 12/11/2022]
Abstract
Oxidative stress is the result of the imbalance between reactive oxygen species (ROS) formation and enzymatic and nonenzymatic antioxidants. Biomarkers of oxidative stress are relevant in the evaluation of the disease status and of the health-enhancing effects of antioxidants. We aim to discuss the major methodological bias of methods used for the evaluation of oxidative stress in humans. There is a lack of consensus concerning the validation, standardization, and reproducibility of methods for the measurement of the following: (1) ROS in leukocytes and platelets by flow cytometry, (2) markers based on ROS-induced modifications of lipids, DNA, and proteins, (3) enzymatic players of redox status, and (4) total antioxidant capacity of human body fluids. It has been suggested that the bias of each method could be overcome by using indexes of oxidative stress that include more than one marker. However, the choice of the markers considered in the global index should be dictated by the aim of the study and its design, as well as by the clinical relevance in the selected subjects. In conclusion, the clinical significance of biomarkers of oxidative stress in humans must come from a critical analysis of the markers that should give an overall index of redox status in particular conditions.
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25
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Li Y, Yang P, Chang Q, Wang J, Liu J, Lv Y, Wang TTY, Gao B, Zhang Y, Yu LL. Inhibitory Effect of Piceatannol on TNF-α-Mediated Inflammation and Insulin Resistance in 3T3-L1 Adipocytes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:4634-4641. [PMID: 28535046 DOI: 10.1021/acs.jafc.7b01567] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Piceatannol, a bioactive component in grape and blueberry, was examined for its potential in decreasing the inflammatory activities in adipocytes using a cocultured adipocyte and macrophage system, and suppressing tumor necrosis factor-α (TNF-α)-mediated inflammation and the related insulin resistance using a 3T3-L1 adipocyte model. Piceatannol at 10 μM significantly reduced the release of inflammatory cytokines of TNF-α and monocyte chemoattractant protein-1 (MCP-1) by 19 and 31% in the cocultured system, respectively. Pretreatment with piceatannol also inhibited TNF-α-induced expression of interleukin-6 (IL-6) and MCP-1 at both mRNA and protein levels in the 3T3-L1 adipocytes. Piceatannol also partially improved the malfunction of insulin-stimulated glucose uptake, which was reduced by TNF-α in 3T3-L1 adipocytes. Furthermore, the inhibitions were mediated by significant blocking of IκBα phosphorylation and nuclear factor-κB (NF-κB) activation through suppressing nuclear translocation of NF-κB p65 along with c-Jun N-terminal kinase (JNK)-mitogen activated protein kinase (MAPK) activation. In addition, the Akt-dependent forkhead box O1 (FoxO1) signaling pathway was involved in the restoration of insulin-stimulated glucose uptake through suppressing the down-regulation of phosphorylation of Akt and FoxO1 expressions. These results suggested the potential of piceatannol in improving chronic inflammatory condition and insulin sensitivity in obese adipose tissues.
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Affiliation(s)
- Yanfang Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University , Beijing 100048, China
- Institute of Food and Nutraceutical Science, School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Puyu Yang
- Institute of Food and Nutraceutical Science, School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Qimeng Chang
- Department of Surgery, Fudan University Minhang Hospital , Shanghai 201199, China
| | - Jing Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University , Beijing 100048, China
| | - Jie Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University , Beijing 100048, China
| | - Yuan Lv
- Institute of Food and Nutraceutical Science, School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Thomas T Y Wang
- Diet, Genomics, and Immunology Laboratory, Agricultural Research Service (ARS), U.S. Department of Agriculture , Beltsville, Maryland 20705, United States
| | - Boyan Gao
- Department of Nutrition and Food Science, University of Maryland , College Park, Maryland 20742, United States
| | - Yaqiong Zhang
- Institute of Food and Nutraceutical Science, School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Liangli Lucy Yu
- Department of Nutrition and Food Science, University of Maryland , College Park, Maryland 20742, United States
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26
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Zhang AJ, Rimando AM, Mizuno CS, Mathews ST. α-Glucosidase inhibitory effect of resveratrol and piceatannol. J Nutr Biochem 2017; 47:86-93. [PMID: 28570943 DOI: 10.1016/j.jnutbio.2017.05.008] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 04/10/2017] [Accepted: 05/16/2017] [Indexed: 01/01/2023]
Abstract
Dietary polyphenols have been shown to inhibit α-glucosidase, an enzyme target of some antidiabetic drugs. Resveratrol, a polyphenol found in grapes and wine, has been reported to inhibit the activity of yeast α-glucosidase. This triggered our interest to synthesize analogs and determine their effect on mammalian α-glucosidase activity. Using either sucrose or maltose as substrate resveratrol, piceatannol and 3'-hydroxypterostilbene showed strong inhibition of mammalian α-glucosidase activity; pinostilbene, cis-desoxyrhapontigenin and trans-desoxyrhapontigenin had moderate inhibition. Compared to acarbose (IC50 3-13 μg/ml), piceatannol and resveratrol inhibited mammalian α-glucosidase to a lesser extent (IC50 14-84 and 111-120 μg/ml, respectively). 3'-Hydroxypterostilbene (IC50 105-302 μg/ml) was 23-35-fold less potent than acarbose. We investigated the effect of piceatannol and resveratrol on postprandial blood glucose response in high-fat-fed C57Bl/6 mice. Animals administered resveratrol (30 mg/kg body weight [BW]) or piceatannol (14 mg/kg BW) 60 min prior to sucrose or starch loading had a delayed absorption of carbohydrates, resulting in significant lowering of postprandial blood glucose concentrations, similar to the antidiabetic drug acarbose, while no significant effect was observed with the glucose-loaded animals. Our studies demonstrate that the dietary polyphenols resveratrol and piceatannol lower postprandial hyperglycemia and indicate that inhibition of intestinal α-glucosidase activity may be a potential mechanism contributing to their antidiabetic property.
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Affiliation(s)
- Albert J Zhang
- Department of Nutrition and Dietetics, Boshell Diabetes and Metabolic Diseases Research Program, Auburn University, Auburn, AL 36849
| | - Agnes M Rimando
- U.S. Department of Agriculture, Agricultural Research Service, Natural Products Utilization Research Unit, P.O. Box 1848, University, MS 38677
| | - Cassia S Mizuno
- U.S. Department of Agriculture, Agricultural Research Service, Natural Products Utilization Research Unit, P.O. Box 1848, University, MS 38677
| | - Suresh T Mathews
- Department of Nutrition and Dietetics, Boshell Diabetes and Metabolic Diseases Research Program, Auburn University, Auburn, AL 36849.
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Pterostilbene 4'- β-Glucoside Protects against DSS-Induced Colitis via Induction of Tristetraprolin. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:9427583. [PMID: 28607633 PMCID: PMC5451844 DOI: 10.1155/2017/9427583] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 03/27/2017] [Accepted: 04/11/2017] [Indexed: 11/18/2022]
Abstract
Pterostilbene, a dimethyl ester analog of resveratrol, has anti-inflammatory and antioxidative effects and alters cell proliferation. Tristetraprolin (TTP) promotes the degradation of proinflammatory mediators via binding to adenosine and uridine- (AU-) rich elements (ARE) located in the 3′-untranslated regions of mRNAs. Here, we utilized pterostilbene 4′-β-glucoside (4-PG), a compound derived from pterostilbene, to investigate whether it has anti-inflammatory effects on dextran sulfate sodium- (DSS-) induced colitis via TTP enhancement. TTP expression was increased in 4-PG dose- and time-dependent manners in RAW264.7 cells. The production of proinflammatory cytokine, such as TNF-α, was reduced by 4-PG in vitro. To investigate the role of TTP in the anti-inflammatory effects of 4-PG, we used DSS–induced colitis in TTP WT and KO mice as models. The expression levels of TTP and proinflammatory cytokines were determined in serum and colon tissue. 4-PG increased the expression of TTP while suppressing proinflammatory cytokines both in vitro and in vivo. These findings suggest that treatment with 4-PG mediates the anti-inflammatory effects of 4-PG on DSS-induced colitis via enhancing TTP expression.
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28
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Synthesis, Anti-inflammatory, and Arginase Inhibitory Activity of Piceatannol and Its Analogs. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Sawikr Y, Yarla NS, Peluso I, Kamal MA, Aliev G, Bishayee A. Neuroinflammation in Alzheimer's Disease. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2017; 108:33-57. [DOI: 10.1016/bs.apcsb.2017.02.001] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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30
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Han MH, Lee WS, Nagappan A, Hong SH, Jung JH, Park C, Kim HJ, Kim GY, Kim G, Jung JM, Ryu CH, Shin SC, Hong SC, Choi YH. Flavonoids Isolated from Flowers of Lonicera japonicaThunb. Inhibit Inflammatory Responses in BV2 Microglial Cells by Suppressing TNF-α and IL-β Through PI3K/Akt/NF-kb Signaling Pathways. Phytother Res 2016; 30:1824-1832. [DOI: 10.1002/ptr.5688] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Affiliation(s)
- Min Ho Han
- Natural Products Research Team; National Marine Biodiversity Institute of Korea; Seocheon 33662 Republic of Korea
| | - Won Sup Lee
- Departments of Internal Medicine; Gyeongsang National University School of Medicine; Jinju 660-702 Korea
| | - Arulkumar Nagappan
- Departments of Internal Medicine; Gyeongsang National University School of Medicine; Jinju 660-702 Korea
| | - Su Hyun Hong
- Department of Biochemistry; Dongeui University College of Oriental Medicine and anti-Aging Research Center & Blue-Bio Industry RIC; Dongeui University; Busan 614-052 South Korea
| | - Ji Hyun Jung
- Departments of Internal Medicine; Gyeongsang National University School of Medicine; Jinju 660-702 Korea
| | - Cheol Park
- Department of Molecular Biology, College of Natural Sciences; Dongeui University; Busan 614-714 Republic of Korea
| | - Hye Jung Kim
- Pharmacology; Gyeongsang National University School of Medicine; Jinju 660-702 Korea
| | - Gi-Young Kim
- Laboratory of Immunobiology, Department of Marine Life Sciences; Jeju National University; Jeju 690-756 South Korea
| | - GonSup Kim
- School of Veterinary Medicine Research Institute of Life Science; Gyeongsang National University; Jinju 660-701 South Korea
| | - Jin-Myung Jung
- Neurosurgery, Institute of Health Sciences; Gyeongsang National University School of Medicine; Jinju 660-702 Korea
| | - Chung Ho Ryu
- Division of Applied Life Science(BK 21 Program), Institute of Agriculture and Life Science; Gyeongsang National University; Jinju 660-701 South Korea
| | - Sung Chul Shin
- Department of Chemistry; Gyeongsang National University; Jinju 660-701 South Korea
| | - Soon Chan Hong
- Surgery, Institute of Health Sciences; Gyeongsang National University School of Medicine; Jinju 660-702 Korea
| | - Yung Hyun Choi
- Department of Biochemistry; Dongeui University College of Oriental Medicine and anti-Aging Research Center & Blue-Bio Industry RIC; Dongeui University; Busan 614-052 South Korea
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Rocha BS, Nunes C, Laranjinha J. Tuning constitutive and pathological inflammation in the gut via the interaction of dietary nitrate and polyphenols with host microbiome. Int J Biochem Cell Biol 2016; 81:393-402. [PMID: 27989963 DOI: 10.1016/j.biocel.2016.10.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/22/2016] [Accepted: 10/26/2016] [Indexed: 02/08/2023]
Abstract
Chronic inflammation is currently recognized as a critical process in modern-era epidemics such as diabetes, obesity and neurodegeneration. However, little attention is paid to the constitutive inflammatory pathways that operate in the gut and that are mandatory for local welfare and the prevention of such multi-organic diseases. Hence, the digestive system, while posing as a barrier between the external environment and the host, is crucial for the balance between constitutive and pathological inflammatory events. Gut microbiome, a recently discovered organ, is now known to govern the interaction between exogenous agents and the host with ensued impact on local and systemic homeostasis. Whereas gut microbiota may be modulated by a myriad of factors, diet constitutes one of its major determinants. Thus, dietary compounds that influence microbial flora may thereby impact on inflammatory pathways. One such example is the redox environment in the gut lumen which is highly dependent on the local generation of nitric oxide along the nitrate-nitrite-nitric oxide pathway and that is further enhanced by simultaneous consumption of polyphenols. In this paper, different pathways encompassing the interaction of dietary nitrate and polyphenols with gut microbiota will be presented and discussed in connection with local and systemic inflammatory events. Furthermore, it will be discussed how these interactive cycles (nitrate-polyphenols-microbiome) may pose as novel strategies to tackle inflammatory diseases.
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Affiliation(s)
- Bárbara S Rocha
- Faculty of Pharmacy and Center for Neurosciences and Cell Biology, University of Coimbra, Health Sciences Campus, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Carla Nunes
- Faculty of Pharmacy and Center for Neurosciences and Cell Biology, University of Coimbra, Health Sciences Campus, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - João Laranjinha
- Faculty of Pharmacy and Center for Neurosciences and Cell Biology, University of Coimbra, Health Sciences Campus, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal.
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Uesugi D, Hamada H, Shimoda K, Kubota N, Ozaki SI, Nagatani N. Synthesis, oxygen radical absorbance capacity, and tyrosinase inhibitory activity of glycosides of resveratrol, pterostilbene, and pinostilbene. Biosci Biotechnol Biochem 2016; 81:226-230. [PMID: 27756183 DOI: 10.1080/09168451.2016.1240606] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The stilbene compound resveratrol was glycosylated to give its 4'-O-β-D-glucoside as the major product in addition to its 3-O-β-D-glucoside by a plant glucosyltransferase from Phytolacca americana expressed in recombinant Escherichia coli. This enzyme transformed pterostilbene to its 4'-O-β-D-glucoside, and converted pinostilbene to its 4'-O-β-D-glucoside as a major product and its 3-O-β-D-glucoside as a minor product. An analysis of antioxidant capacity showed that the above stilbene glycosides had lower oxygen radical absorbance capacity (ORAC) values than those of the corresponding stilbene aglycones. The 3-O-β-D-glucoside of resveratrol showed the highest ORAC value among the stilbene glycosides tested, and pinostilbene had the highest value among the stilbene compounds. The tyrosinase inhibitory activities of the stilbene aglycones were improved by glycosylation; the stilbene glycosides had higher activities than the stilbene aglycones. Resveratrol 3-O-β-D-glucoside had the highest tyrosinase inhibitory activity among the stilbene compounds tested.
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Affiliation(s)
- Daisuke Uesugi
- a Faculty of Science, Department of Life Science , Okayama University of Science , Okayama , Japan
| | - Hiroki Hamada
- a Faculty of Science, Department of Life Science , Okayama University of Science , Okayama , Japan
| | - Kei Shimoda
- b Faculty of Medicine, Department of Biomedical Chemistry , Oita University , Oita , Japan
| | - Naoji Kubota
- b Faculty of Medicine, Department of Biomedical Chemistry , Oita University , Oita , Japan
| | - Shin-Ichi Ozaki
- c Faculty of Agriculture, Department of Biological Sciences , Yamaguchi University , Yamaguchi , Japan
| | - Naoki Nagatani
- d Department of Applied Chemistry , Graduate School of Engineering, Okayama University of Science , Okayama , Japan
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Bolton JL, Dunlap T. Formation and Biological Targets of Quinones: Cytotoxic versus Cytoprotective Effects. Chem Res Toxicol 2016; 30:13-37. [PMID: 27617882 PMCID: PMC5241708 DOI: 10.1021/acs.chemrestox.6b00256] [Citation(s) in RCA: 254] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Quinones represent a class of toxicological intermediates, which can create a variety of hazardous effects in vivo including, acute cytotoxicity, immunotoxicity, and carcinogenesis. In contrast, quinones can induce cytoprotection through the induction of detoxification enzymes, anti-inflammatory activities, and modification of redox status. The mechanisms by which quinones cause these effects can be quite complex. The various biological targets of quinones depend on their rate and site of formation and their reactivity. Quinones are formed through a variety of mechanisms from simple oxidation of catechols/hydroquinones catalyzed by a variety of oxidative enzymes and metal ions to more complex mechanisms involving initial P450-catalyzed hydroxylation reactions followed by two-electron oxidation. Quinones are Michael acceptors, and modification of cellular processes could occur through alkylation of crucial cellular proteins and/or DNA. Alternatively, quinones are highly redox active molecules which can redox cycle with their semiquinone radical anions leading to the formation of reactive oxygen species (ROS) including superoxide, hydrogen peroxide, and ultimately the hydroxyl radical. Production of ROS can alter redox balance within cells through the formation of oxidized cellular macromolecules including lipids, proteins, and DNA. This perspective explores the varied biological targets of quinones including GSH, NADPH, protein sulfhydryls [heat shock proteins, P450s, cyclooxygenase-2 (COX-2), glutathione S-transferase (GST), NAD(P)H:quinone oxidoreductase 1, (NQO1), kelch-like ECH-associated protein 1 (Keap1), IκB kinase (IKK), and arylhydrocarbon receptor (AhR)], and DNA. The evidence strongly suggests that the numerous mechanisms of quinone modulations (i.e., alkylation versus oxidative stress) can be correlated with the known pathology/cytoprotection of the parent compound(s) that is best described by an inverse U-shaped dose-response curve.
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Affiliation(s)
- Judy L Bolton
- Department of Medicinal Chemistry and Pharmacognosy (M/C 781), College of Pharmacy, University of Illinois at Chicago , 833 S. Wood Street, Chicago, Illinois 60612-7231, United States
| | - Tareisha Dunlap
- Department of Medicinal Chemistry and Pharmacognosy (M/C 781), College of Pharmacy, University of Illinois at Chicago , 833 S. Wood Street, Chicago, Illinois 60612-7231, United States
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Serafini M, Peluso I. Functional Foods for Health: The Interrelated Antioxidant and Anti-Inflammatory Role of Fruits, Vegetables, Herbs, Spices and Cocoa in Humans. Curr Pharm Des 2016; 22:6701-6715. [PMID: 27881064 PMCID: PMC5427773 DOI: 10.2174/1381612823666161123094235] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 11/15/2016] [Indexed: 01/18/2023]
Abstract
The health benefits of plant food-based diets could be related to both integrated antioxidant and antiinflammatory mechanisms exerted by a wide array of phytochemicals present in fruit, vegetables, herbs and spices. Therefore, there is mounting interest in identifying foods, food extracts and phytochemical formulations from plant sources which are able to efficiently modulate oxidative and inflammatory stress to prevent diet-related diseases. This paper reviews available evidence about the effect of supplementation with selected fruits, vegetables, herbs, spices and their extracts or galenic formulation on combined markers of redox and inflammatory status in humans.
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Affiliation(s)
- Mauro Serafini
- Functional Foods and Metabolic Stress Prevention Laboratory, Centre for Food and Nutrition, Council for Agricultural Research and Economics, Rome, Italy
| | - Ilaria Peluso
- Functional Foods and Metabolic Stress Prevention Laboratory, Centre for Food and Nutrition, Council for Agricultural Research and Economics, Rome, Italy
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35
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Chon SH, Yang EJ, Lee T, Song KS. β-Secretase (BACE1) inhibitory and neuroprotective effects of p-terphenyls from Polyozellus multiplex. Food Funct 2016; 7:3834-42. [DOI: 10.1039/c6fo00538a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Polyozellin, thelephoric acid, and polyozellic acid might be useful in the development of lead compounds for the prevention of neurodegenerative disorders, especially Alzheimer's disease (AD).
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Affiliation(s)
- So-Hyun Chon
- Research Institute of Pharmaceutical Sciences
- College of Pharmacy
- Kyungpook National University
- Daegu 41566
- Republic of Korea
| | - Eun-Ju Yang
- Research Institute of Pharmaceutical Sciences
- College of Pharmacy
- Kyungpook National University
- Daegu 41566
- Republic of Korea
| | - Taeho Lee
- Research Institute of Pharmaceutical Sciences
- College of Pharmacy
- Kyungpook National University
- Daegu 41566
- Republic of Korea
| | - Kyung-Sik Song
- Research Institute of Pharmaceutical Sciences
- College of Pharmacy
- Kyungpook National University
- Daegu 41566
- Republic of Korea
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36
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Llarena M, Andrade F, Hasnaoui M, Portillo MP, Pérez-Matute P, Arbones-Mainar JM, Hijona E, Villanueva-Millán MJ, Aguirre L, Carpéné C, Aldámiz-Echevarría L. Potential renoprotective effects of piceatannol in ameliorating the early-stage nephropathy associated with obesity in obese Zucker rats. J Physiol Biochem 2015; 72:555-66. [PMID: 26660756 DOI: 10.1007/s13105-015-0457-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Accepted: 11/26/2015] [Indexed: 11/24/2022]
Abstract
Obesity-associated nephropathy is considered to be a leading cause of end-stage renal disease. Resveratrol supplementation represents a promising therapy to attenuate kidney injury, but the poor solubility and limited bioavailability of this polyphenol limits its use in dietary intervention. Piceatannol, a resveratrol analogue, has been suggested as a better option. In this study, we aimed to provide evidence of a preventive action of piceatannol in very early stages of obesity-associated nephropathy. Thirty obese Zucker rats were divided into three experimental groups: one control and two groups orally treated for 6 weeks with 15 and 45 mg piceatannol/kg body weight/day. Enzyme-linked immunosorbent assays (ELISA) were used to determine renal and urinary kidney injury molecule-1 (Kim-1), renal fibrosis markers (transforming growth factor β1 and fibronectin) and renal sirtuin-1 protein. Oxidative stress was assessed in the kidney by measuring lipid peroxidation and nitrosative stress (thiobarbituric acid reactive substrates and 3-nitrotyrosine levels, respectively) together with the activity of the antioxidant enzyme superoxide dismutase. Renal fatty acids profile analysis was performed by thin-layer and gas chromatography. Piceatannol-treated rats displayed lower levels of urinary and renal Kim-1. Renal fibrosis biomarkers and lipid peroxidation exhibited a tendency to decrease in the piceatannol-treated groups. Piceatannol treatment did not modify superoxide dismutase activity or sirtuin-1 protein levels, while it seemed to increase the levels of polyunsaturated and omega-6 polyunsaturated fatty acids in the kidneys. Our findings suggest a mild renoprotective effect of piceatannol in obese Zucker rats and the need of intervention at early stages of renal damage.
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Affiliation(s)
- Marta Llarena
- Unit of Metabolism, Cruces University Hospital - BioCruces Health Research Institute, GCV-CIBER de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Plaza de Cruces s/n, 48903, Barakaldo, Bizkaia, Spain
| | - Fernando Andrade
- Unit of Metabolism, Cruces University Hospital - BioCruces Health Research Institute, GCV-CIBER de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Plaza de Cruces s/n, 48903, Barakaldo, Bizkaia, Spain
| | - Mounia Hasnaoui
- Institut des Maladies Métaboliques et Cardiovasculaires, Institut National de la Santé et de la Recherche Médicale (INSERM U1048), Toulouse, France
| | - María P Portillo
- Nutrition and Obesity Group, Department of Nutrition and Food Science, University of Basque Country (UPV/EHU), Centro de Investigación Lucio Lascaray, Centro de Investigación Biomédica en Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, 01006, Vitoria, Spain
| | - Patricia Pérez-Matute
- HIV and Associated Metabolic Alterations Unit, Infectious Diseases Department, Center for Biomedical Research of La Rioja (CIBIR), Logroño, Spain
| | - Jose M Arbones-Mainar
- Adipocyte and Fat Biology Laboratory (AdipoFat), Unidad de Investigación Traslacional, Instituto Aragonés de Ciencias de la Salud (IACS), Hospital Universitario Miguel Servet, CIBER Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Zaragoza, Spain
| | - Elizabeth Hijona
- Department of Gastroenterology, University of the Basque Country (UPV/EHU), Donostia Hospital and Biodonostia Institute and Centro de Investigación Biomédica en Enfermedades Hepáticas (CIBERehd), Instituto de Salud Carlos III, 20014, San Sebastián, Spain
| | - María Jesús Villanueva-Millán
- HIV and Associated Metabolic Alterations Unit, Infectious Diseases Department, Center for Biomedical Research of La Rioja (CIBIR), Logroño, Spain
| | - Leixuri Aguirre
- Nutrition and Obesity Group, Department of Nutrition and Food Science, University of Basque Country (UPV/EHU), Centro de Investigación Lucio Lascaray, Centro de Investigación Biomédica en Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, 01006, Vitoria, Spain
| | - Christian Carpéné
- Institut des Maladies Métaboliques et Cardiovasculaires, Institut National de la Santé et de la Recherche Médicale (INSERM U1048), Toulouse, France
| | - Luis Aldámiz-Echevarría
- Unit of Metabolism, Cruces University Hospital - BioCruces Health Research Institute, GCV-CIBER de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Plaza de Cruces s/n, 48903, Barakaldo, Bizkaia, Spain.
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Yang EJ, Song KS. Polyozellin, a key constituent of the edible mushroom Polyozellus multiplex, attenuates glutamate-induced mouse hippocampal neuronal HT22 cell death. Food Funct 2015; 6:3678-86. [PMID: 26399743 DOI: 10.1039/c5fo00636h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
Polyozellus multiplex (PM), a Korean edible mushroom, has biological activities such as chemoprevention of stomach cancer, inhibition of lipid peroxidation, and reduction of prolyl endopeptidase activity. However, there are little reports on the protective effects of PM or its constituents against glutamate-induced mouse hippocampal neuronal cell (HT22) death. In this study, polyozellin (PZ), a key constituent of PM, was applied to glutamate-treated HT22 cells to evaluate its neuroprotective mechanisms. PZ (25 μM) dramatically increased the HT22 cell viability when the cell death was induced by 5 mM glutamate for 12 h, which was mediated by inhibition of Ca(2+) influx, intracellular reactive oxygen species (ROS) production, and lipid peroxidation. PZ also regulated expression of Bid, Bcl-2, and apoptosis-inducing factor (AIF), as well as phosphorylation of mitogen-activated protein kinases (MAPKs). These data suggest that PM and its constituent PZ might be useful for prevention and treatment of neurodegenerative disorders.
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Affiliation(s)
- Eun-Ju Yang
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Kyungpook National University, 80 Daehak-ro, Sankyuk-dong, Daegu 702-701, Republic of Korea.
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Lim YH, Kim KH, Kim JK. Source, Biosynthesis, Biological Activities and Pharmacokinetics of Oxyresveratrol. ACTA ACUST UNITED AC 2015. [DOI: 10.9721/kjfst.2015.47.5.545] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Shimoda K, Kubota N, Uesugi D, Hamada H, Tanigawa M, Hamada H. Synthesis and pharmacological evaluation of glycosides of resveratrol, pterostilbene, and piceatannol. Ann N Y Acad Sci 2015; 1348:141-9. [DOI: 10.1111/nyas.12836] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Kei Shimoda
- Department of Chemistry; Faculty of Medicine; Oita University; Oita Japan
| | - Naoji Kubota
- Department of Chemistry; Faculty of Medicine; Oita University; Oita Japan
| | - Daisuke Uesugi
- Department of Life Science; Faculty of Science; Okayama University of Science; Okayama Japan
| | | | - Masato Tanigawa
- Department of Physics; Faculty of Medicine; Oita University; Oita Japan
| | - Hiroki Hamada
- Department of Life Science; Faculty of Science; Okayama University of Science; Okayama Japan
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Yum S, Jeong S, Lee S, Nam J, Kim W, Yoo JW, Kim MS, Lee BL, Jung Y. Colon-targeted delivery of piceatannol enhances anti-colitic effects of the natural product: potential molecular mechanisms for therapeutic enhancement. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:4247-58. [PMID: 26273188 PMCID: PMC4532174 DOI: 10.2147/dddt.s88670] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Piceatannol (PCT), an anti-colitic natural product, undergoes extensive Phase II hepatic metabolism, resulting in very low bioavailability. We investigated whether colon-targeted delivery of PCT could enhance anti-colitic effects and how therapeutic enhancement occurred at the molecular level. Molecular effects of PCT were examined in human colon carcinoma cells and inflamed colons. The anti-colitic effects of PCT in a colon-targeted capsule (colon-targeted PCT) were compared with PCT in a gelatin capsule (conventional PCT) in a trinitrobenzene sulfonic acid-induced rat colitis model. Colon-targeted PCT elicited greatly enhanced recovery of the colonic inflammation. In HCT116 cells, PCT inhibited nuclear factor kappaB while activating anti-colitic transcription factors, nuclear factor-erythroid 2 (NF-E2) p45-related factor 2, and hypoxia-inducible factor-1. Colon-targeted PCT, but not conventional PCT, modulated production of the target gene products of the transcription factors in the inflamed colonic tissues. Rectal administration of PCT, which simulates the therapeutic action of colon-targeted PCT, also ameliorated rat colitis and reproduced the molecular effects in the inflamed colonic tissues. Colon-targeted delivery increased therapeutic efficacy of PCT against colitis, likely resulting from multitargeted effects exerted by colon-targeted PCT. The drug delivery technique may be useful for therapeutic optimization of anti-colitic lead compounds including natural products.
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Affiliation(s)
- Soohwan Yum
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Seongkeun Jeong
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Sunyoung Lee
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Joon Nam
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Wooseong Kim
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Jin-Wook Yoo
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Min-Soo Kim
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Bok Luel Lee
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Yunjin Jung
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
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Yang EJ, Ku SK, Lee W, Song KS, Bae JS. Inhibitory effects of polyozellin from Polyozellus multiplex on HMGB1-mediated septic responses. Inflamm Res 2015. [PMID: 26206236 DOI: 10.1007/s00011-015-0856-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
AIM AND OBJECTIVE The ubiquitous nuclear protein, high-mobility group box 1 (HMGB1), is released by activated macrophages and human umbilical vein endothelial cells (HUVECs) and functions as a late mediator of experimental sepsis. Polyozellin, which has been reported to have a variety of biological activities including antioxidant and anticancer activity, is the major active compound found in edible mushroom (Polyozellus multiplex). In this study, we investigated the antiseptic effects and underlying mechanisms of polyozellin against HMGB1-mediated septic responses in HUVECs and mice. METHODS The anti-inflammatory activities of polyozellin were determined by measuring permeability, human neutrophil adhesion and migration, and activation of proinflammatory proteins in HMGB1-activated HUVECs and mice. RESULTS According to the results, polyozellin effectively inhibited lipopolysaccharide (LPS)-induced release of HMGB1, and suppressed HMGB1-mediated septic responses, such as hyperpermeability, adhesion and migration of leukocytes, and expression of cell adhesion molecules. In addition, polyozellin suppressed the production of tumor necrosis factor-α and interleukin (IL)-6, and the activation of nuclear factor-κB and extracellular signal-regulated kinases 1/2 by HMGB1. CONCLUSION Collectively, these results indicate that P. multiplex containing polyozellin could be commercialized as functional food for preventing and treatment of various severe vascular inflammatory diseases via inhibition of the HMGB1 signaling pathway.
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Affiliation(s)
- Eun-Ju Yang
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, Kyungpook National University, 80 Dahak-ro, Buk-gu, Daegu, 702-701, Republic of Korea
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Accumulation of stilbene compounds and induction of related gene expression by hairy vetch and ryegrass extracts in grape berries. Biologia (Bratisl) 2015. [DOI: 10.2478/s11756-014-0488-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Liu L, Li J, Kundu JK, Surh YJ. Piceatannol inhibits phorbol ester-induced expression of COX-2 and iNOS in HR-1 hairless mouse skin by blocking the activation of NF-κB and AP-1. Inflamm Res 2014; 63:1013-21. [PMID: 25374129 DOI: 10.1007/s00011-014-0777-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 10/10/2014] [Accepted: 10/14/2014] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVES The present study was aimed at elucidating the molecular mechanisms of anti-inflammatory activity of piceatannol (trans-3,4,3',5'-tetrahydroxystilbene) in mouse skin in vivo. METHODS Female HR-1 hairless mice were topically treated with 12-O-tetradecanoylphorbol-13-acetate (TPA) with or without piceatannol pretreatment. Epidermal protein expression was assessed by Western blot analysis. The cyclooxygenase-2 (COX-2) expression was detected by immunohistochemistry. The DNA binding of nuclear factor-kappaB (NF-κB) and activator protein-1 (AP-1) was examined by the electrophoretic mobility gel shift assay. The catalytic activity of IκBα kinase-β (IKKβ) was measured by in vitro kinase assay. RESULTS Pretreatment with piceatannol attenuated TPA-induced expression of COX-2 and inducible nitric oxide synthase (iNOS) in mouse skin. Piceatannol diminished nuclear translocation and the DNA binding of NF-κB through the blockade of phosphorylation and subsequent degradation of IκBα. Piceatannol attenuated the catalytic activity of IKKβ and inhibited the phosphorylation of mitogen-activated protein (MAP) kinases in TPA-treated mouse skin. In addition, piceatannol decreased TPA-induced expression of c-Fos and the DNA binding of AP-1. CONCLUSION Piceatannol inhibits TPA-induced COX-2 and iNOS expression by blocking the activation of NF-κB and AP-1 via suppression of the IKKβ activity and phosphorylation of MAP kinases, which provides a mechanistic basis of its anti-inflammatory effects in mouse skin.
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Affiliation(s)
- Lijia Liu
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, 151-742, South Korea
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Linnewiel-Hermoni K, Motro Y, Miller Y, Levy J, Sharoni Y. Carotenoid derivatives inhibit nuclear factor kappa B activity in bone and cancer cells by targeting key thiol groups. Free Radic Biol Med 2014; 75:105-20. [PMID: 25078119 DOI: 10.1016/j.freeradbiomed.2014.07.024] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 07/05/2014] [Accepted: 07/19/2014] [Indexed: 11/25/2022]
Abstract
Aberrant activation of the nuclear factor kappa B (NFkB) transcription system contributes to cancer progression, and has a harmful effect on bone health. Several major components of the NFkB pathway such as IkB Kinase (IKK) and the NFkB subunits contain cysteine residues that are critical for their activity. The interaction of electrophiles with these cysteine residues results in NFkB inhibition. Carotenoids, hydrophobic plant pigments, are devoid of electrophilic groups, and we have previously demonstrated that carotenoid derivatives, but not the native compounds activate the Nrf2 transcription system. The aim of the current study was to examine whether carotenoid derivatives inhibit NFkB, and, if so, to determine the molecular mechanism underpinning the inhibitory action. We report in the present study that a mixture of oxidized derivatives, prepared by ethanol extraction from partially oxidized lycopene preparation, inhibited NFkB reporter gene activity. In contrast, the intact carotenoid was inactive. A series of synthetic dialdehyde carotenoid derivatives inhibited reporter activity as well as several stages of the NFkB pathway in both cancer and bone cells. The activity of the carotenoid derivatives depended on the reactivity of the electrophilic groups in reactions such as Michael addition to sulfhydryl groups of proteins. Specifically, carotenoid derivatives directly interacted with two key proteins of the NFkB pathway: the IKKβ and the p65 subunit. Direct interaction with IKKβ was found in an in vitro kinase assay with a recombinant enzyme. The inhibition by carotenoid derivatives of p65 transcriptional activity was observed in a reporter gene assay performed in the presence of excess p65. This inhibition action resulted, at least in part, from direct interaction of the carotenoid derivative with p65 leading to reduced binding of the protein to DNA as evidenced by electrophoretic mobility shift assay (EMSA) experiments. Importantly, we found by using mutation in key cysteine residues of both p65 and IKK that specific thiol groups are essential for NFkB inhibition by carotenoid derivatives. In conclusion, we propose that electrophilic carotenoid derivatives contribute to cancer prevention as well as bone health maintenance via the inhibition of the NFkB transcription system. Pivotal thiol groups of both IKK and p65 play a key role in this process.
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Affiliation(s)
- Karin Linnewiel-Hermoni
- Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev and Soroka Medical Center, Beer Sheva, Israel.
| | - Yair Motro
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Yifat Miller
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Joseph Levy
- Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev and Soroka Medical Center, Beer Sheva, Israel
| | - Yoav Sharoni
- Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev and Soroka Medical Center, Beer Sheva, Israel
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Lai TNH, André CM, Chirinos R, Nguyen TBT, Larondelle Y, Rogez H. Optimisation of extraction of piceatannol from Rhodomyrtus tomentosa seeds using response surface methodology. Sep Purif Technol 2014. [DOI: 10.1016/j.seppur.2014.07.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Withaferin A inhibits NF-kappaB activation by targeting cysteine 179 in IKKβ. Biochem Pharmacol 2014; 91:501-9. [PMID: 25159986 DOI: 10.1016/j.bcp.2014.08.004] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 08/08/2014] [Accepted: 08/08/2014] [Indexed: 11/20/2022]
Abstract
The transcription factor NF-κB is one of the main players involved in inflammatory responses during which NF-κB becomes rapidly activated. However to maintain homeostasis, this NF-κB activation profile is only transient. Nevertheless deregulation of NF-κB activity is often observed and can lead to chronic inflammatory diseases as well as cancer. Therefore various research projects focus on the development of therapeutics that target the NF-κB activation pathway. One such compound is Withaferin A from the Ayurvedic plant Withania somnifera. Several reports already described the NF-κB inhibiting, anti-inflammatory capacity of WA, either in vitro as well as in vivo. However the underlying molecular mechanism remains largely unknown. In this paper we demonstrate a direct interaction of WA with the IKK-complex, more specifically with IKKβ, a kinase which is indispensable for the nuclear translocation of NF-κB. Hereby WA directly inhibits IKK catalytic activity. By mutation of Cys179 in IKKβ we could demonstrate loss of interaction between IKKβ and WA indicating that WA exerts its anti-inflammatory effects by targeting the crucial Cys179 residue located in the catalytic site of IKKβ. Upon docking of WA to a IKKβ homology structure model, WA was found to fit nicely into the groove of IKKβ where it can form hydrogen bond to stabilize its interaction with Cys179.
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Lai TNH, André C, Rogez H, Mignolet E, Nguyen TBT, Larondelle Y. Nutritional composition and antioxidant properties of the sim fruit (Rhodomyrtus tomentosa). Food Chem 2014; 168:410-6. [PMID: 25172728 DOI: 10.1016/j.foodchem.2014.07.081] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 07/13/2014] [Accepted: 07/15/2014] [Indexed: 11/19/2022]
Abstract
In this study, detailed chemical properties of sim (Rhodomyrtus tomentosa (Ait.) Hassk.) fruit including nutritional composition, phenolic content and antioxidant capacity were determined for the first time. A 150g serving of sim fruit contained high levels of dietary fibre (69.94-87.43% of Recommended Daily Intake (RDI)), α-tocopherol (38.90-51.87% RDI), manganese (>100% RDI), and copper (44.44% RDI) but low levels of protein (2.63% RDI), lipid (1.59-3.5% RDI), and sugars (5.65% RDI). The predominant fatty acid in the sim fruit sample was linoleic acid (75.36% of total fatty acids). Interestingly, total phenolics (49.21±0.35mg gallic acid equivalent (GAE)/g dry weight (DW)) were particularly high and resulted in a high antioxidant capacity (431.17±14.56μmol Trolox equivalent (TE)/g DW). These results, together with our recent discovery of high amount of piceatannol, a stilbene with potent biological activities, highlight the potential of sim, an under-utilised plant species from South-East Asia, as a new source of health-promoting compounds including dietary fibres, essential fatty acids, and phenolic compounds.
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Affiliation(s)
- Thi Ngoc Ha Lai
- Institut des Sciences de la Vie, UCLouvain, Belgium; Faculty of Food Sciences and Technology, Vietnam National University of Agriculture, Viet Nam
| | - Christelle André
- Centre de Recherche Public-Gabriel Lippmann, Department "Environment and Agro-biotechnologies", Luxembourg.
| | - Hervé Rogez
- Centre for Agro-food Valorisation of Amazonian Bioactive Compounds (CVACBA), Universidade Federal do Para, Brazil
| | | | - Thi Bich Thuy Nguyen
- Faculty of Food Sciences and Technology, Vietnam National University of Agriculture, Viet Nam
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Sato D, Shimizu N, Shimizu Y, Akagi M, Eshita Y, Ozaki SI, Nakajima N, Ishihara K, Masuoka N, Hamada H, Shimoda K, Kubota N. Synthesis of glycosides of resveratrol, pterostilbene, and piceatannol, and their anti-oxidant, anti-allergic, and neuroprotective activities. Biosci Biotechnol Biochem 2014; 78:1123-8. [PMID: 25229845 DOI: 10.1080/09168451.2014.921551] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Resveratrol was glucosylated to its 3- and 4'-β-glucosides by cultured cells of Phytolacca americana. On the other hand, cultured P. americana cells glucosylated pterostilbene to its 4'-β-glucoside. P. americana cells converted piceatannol into its 4'-β-glucoside. The 3- and 4'-β-glucosides of resveratrol were further glucosylated to 3- and 4'-β-maltosides of resveratrol, 4'-β-maltoside of which is a new compound, by cyclodextrin glucanotransferase. Resveratrol 3-β-glucoside and 3-β-maltoside showed low 2,2-diphenyl-1-picrylhydrazyl free-radical-scavenging activity, whereas other glucosides had no radical-scavenging activity. Piceatannol 4'-β-glucoside showed the strongest inhibitory activity among the stilbene glycosides towards histamine release from rat peritoneal mast cells. Pterostilbene 4'-β-glucoside showed high phosphodiesterase inhibitory activity.
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Affiliation(s)
- Daisuke Sato
- a Faculty of Medicine, Department of Chemistry , Oita University , Oita , Japan
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Zheng M, Jiang J, Tang YL, Liang XH. Oncogene and non-oncogene addiction in inflammation-associated cancers. Future Oncol 2013; 9:561-73. [PMID: 23560378 DOI: 10.2217/fon.12.202] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Many cancers originate in tissues that are chronically inflamed, and the inflammatory microenvironment is considered to promote the progression of malignancy, including initiation, growth, angiogenesis, invasion and metastasis. The molecular mechanism of inflammation-induced progression of cancers has been widely discussed. Oncogene and non-oncogene addiction have been proposed as two distinct but complementary theories to explain the initiation and development of cancers. Furthermore, they also play a role in cancer-associated inflammation. A solid understanding of oncogene and non-oncogene addiction in cancer-associated inflammatory microenvironments will help to exploit cancer drug targets for cancer prevention and clinical treatment.
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Affiliation(s)
- Min Zheng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, No. 14, Sec. 3, Renminnan Road, Chengdu Sichuan 610041, People's Republic of China
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Kalariya NM, Shoeb M, Reddy ABM, Sawhney R, Ramana KV. Piceatannol suppresses endotoxin-induced ocular inflammation in rats. Int Immunopharmacol 2013; 17:439-46. [PMID: 23892029 PMCID: PMC3786330 DOI: 10.1016/j.intimp.2013.07.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 07/05/2013] [Accepted: 07/08/2013] [Indexed: 12/29/2022]
Abstract
Anti-inflammatory effect of piceatannol, a naturally occurring polyphenol and a potent free radical scavenger, on ocular inflammation is not known. We examined the anti-inflammatory role of piceatannol in ocular inflammatory response due to endotoxin-induced uveitis (EIU) in rats. EIU was induced in Lewis rats by subcutaneous injection of lipopolysaccharide (LPS; 150 ug/rat). Piceatannol (30mg/kg body wt, i.p) was injected either 2h prior to or 1h post LPS induction. A significant increase in the number of infiltrating cells, total protein, and various cytokines and chemokines in AqH were observed in the EIU rat eyes as compared to control groups. However, pre- or post-treatment of piceatannol significantly blocked the LPS-induced changes. Further, piceatannol also suppressed the expression of cyclooxygenase-2 (Cox-2), inducible nitric oxide synthase (iNOS) and activation of NF-κB in the ciliary bodies as well as retina. Further, piceatannol also inhibited the expression of Cox-2, iNOS, and phosphorylation of NF-κB in primary human non-pigmented ciliary epithelial cells (HNPECs) treated with LPS. Similarly, piceatannol also diminished LPS-induced level of NO and prostaglandin E2 in HNPECs. Thus our results demonstrate an anti-inflammatory role of piceatannol in suppressing ocular inflammation induced by endotoxin in rats.
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Affiliation(s)
- Nilesh M. Kalariya
- Department of Ophthalmology & Visual Sciences, University of Texas Medical Branch, Galveston, Texas
- School of Nursing, University of Texas Medical Branch, Galveston, Texas
| | - Mohammad Shoeb
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas
| | - Aramati B. M. Reddy
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas
| | - Rahul Sawhney
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas
| | - Kota V. Ramana
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas
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