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Wu C, Wong AR, Chen Q, Yang S, Chen M, Sun X, Zhou L, Liu Y, Yang AWH, Bi J, Hung A, Li H, Zhao X. Identification of inhibitors from a functional food-based plant Perillae Folium against hyperuricemia via metabolomics profiling, network pharmacology and all-atom molecular dynamics simulations. Front Endocrinol (Lausanne) 2024; 15:1320092. [PMID: 38435751 PMCID: PMC10905266 DOI: 10.3389/fendo.2024.1320092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 01/17/2024] [Indexed: 03/05/2024] Open
Abstract
Introduction Hyperuricemia (HUA) is a metabolic disorder caused by purine metabolism dysfunction in which the increasing purine levels can be partially attributed to seafood consumption. Perillae Folium (PF), a widely used plant in functional food, has been historically used to mitigate seafood-induced diseases. However, its efficacy against HUA and the underlying mechanism remain unclear. Methods A network pharmacology analysis was performed to identify candidate targets and potential mechanisms involved in PF treating HUA. The candidate targets were determined based on TCMSP, SwissTargetPrediction, Open Targets Platform, GeneCards, Comparative Toxicogenomics Database, and DrugBank. The potential mechanisms were predicted via Gene Ontology (GO) and Kyoto Gene and Genome Encyclopedia (KEGG) analyses. Molecular docking in AutoDock Vina and PyRx were performed to predict the binding affinity and pose between herbal compounds and HUA-related targets. A chemical structure analysis of PF compounds was performed using OSIRIS DataWarrior and ClassyFire. We then conducted virtual pharmacokinetic and toxicity screening to filter potential inhibitors. We further performed verifications of these inhibitors' roles in HUA through molecular dynamics (MD) simulations, text-mining, and untargeted metabolomics analysis. Results We obtained 8200 predicted binding results between 328 herbal compounds and 25 potential targets, and xanthine dehydrogenase (XDH) exhibited the highest average binding affinity. We screened out five promising ligands (scutellarein, benzyl alpha-D-mannopyranoside, elemol, diisobutyl phthalate, and (3R)-hydroxy-beta-ionone) and performed MD simulations up to 50 ns for XDH complexed to them. The scutellarein-XDH complex exhibited the most satisfactory stability. Furthermore, the text-mining study provided laboratory evidence of scutellarein's function. The metabolomics approach identified 543 compounds and confirmed the presence of scutellarein. Extending MD simulations to 200 ns further indicated the sustained impact of scutellarein on XDH structure. Conclusion Our study provides a computational and biomedical basis for PF treating HUA and fully elucidates scutellarein's great potential as an XDH inhibitor at the molecular level, holding promise for future drug design and development.
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Affiliation(s)
- Chuanghai Wu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Ann Rann Wong
- School of Health and Biomedical Sciences, STEM College, RMIT University, Bundoora, VIC, Australia
| | - Qinghong Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Shuxuan Yang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Meilin Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Xiaomin Sun
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Lin Zhou
- Endocrinology Department, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yanyan Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Angela Wei Hong Yang
- School of Health and Biomedical Sciences, STEM College, RMIT University, Bundoora, VIC, Australia
| | - Jianlu Bi
- Endocrinology Department, Guangdong Second Traditional Chinese Medicine Hospital, Guangzhou, China
| | - Andrew Hung
- School of Science, STEM College, RMIT University, Melbourne, VIC, Australia
| | - Hong Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- School of Science, STEM College, RMIT University, Melbourne, VIC, Australia
| | - Xiaoshan Zhao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
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Ntalouka F, Tsirivakou A. Luteolin: A promising natural agent in management of pain in chronic conditions. FRONTIERS IN PAIN RESEARCH 2023; 4:1114428. [PMID: 36937566 PMCID: PMC10016360 DOI: 10.3389/fpain.2023.1114428] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/13/2023] [Indexed: 03/04/2023] Open
Abstract
Pain due to chronic conditions is a frequent and insufficiently addressed problem. Current drug options for pain management (either in cases of chronic inflammatory conditions or neuropathy) do not adequately treat pain. Moreover, they are associated with important adverse events in long term use. Luteolin is a flavonoid widely present in the plant kingdom and its sources have been assembled in a comprehensive list of this paper. Luteolin has shown in several research studies a range of pharmacological properties; anti-inflammatory, antioxidant, neuroprotective, and analgesic. In this article, we summarize the effects and potential benefits from introducing luteolin as an adjuvant agent in established protocols for pain management. We review the most indicative in vivo and in vitro evidence of how luteolin can target the molecular pathways involved in pathogenesis of chronic inflammatory and neuropathic pain. The data reviewed strongly support luteolin's promising benefits in pain management and raise the need for further clinical trials that can establish its role in clinical practice.
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Jee HJ, Ryu D, Kim S, Yeon SH, Son RH, Hwang SH, Jung YS. Fermented Perilla frutescens Ameliorates Depression-like Behavior in Sleep-Deprivation-Induced Stress Model. Int J Mol Sci 2022; 24:ijms24010622. [PMID: 36614066 PMCID: PMC9820360 DOI: 10.3390/ijms24010622] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022] Open
Abstract
Excessive stress plays a critical role in the pathogenesis of mood disorders such as depression. Fermented natural products have recently attracted attention because of their health benefits. We evaluated the antidepressant-like efficacy of fermented Perilla frutescens (FPF), and its underlying mechanisms, in sleep deprivation (SD)-induced stress mice. SD-stressed mice revealed a remarkable increase in the immobility time in both forced swimming test and tail suspension test; this increase was ameliorated by treatment with FPF at doses of 100 and 150 mg/kg. FPF treatment also reduced the level of stress hormones such as corticosterone and adrenocorticotropic hormone. Additionally, FPF increased the levels of serotonin and dopamine which were significantly decreased in the brain tissues of SD-stressed mice. The increased expression of proinflammatory cytokines, such as TNF-α and IL1β, and the decreased expression of brain-derived neurotrophic factor (BDNF) in the stressed mice were significantly reversed by FPF treatment. Furthermore, FPF also increased phosphorylation of tropomyosin receptor kinase B (TrkB), extracellular regulated protein kinase (ERK), and cAMP response element binding protein (CREB). Among the six components isolated from FPF, protocatechuic acid and luteolin-7-O-glucuronide exhibited significant antidepressant-like effects, suggesting that they are major active components. These findings suggest that FPF has therapeutic potential for SD-induced stress, by correcting dysfunction of hypothalamic-pituitary-adrenal axis and modulating the BDNF/TrkB/ERK/CREB signaling pathway.
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Affiliation(s)
- Hye Jin Jee
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
- AI-Super Convergence KIURI Translational Research Center, School of Medicine, Ajou University, Suwon 16499, Republic of Korea
| | - Dajung Ryu
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Suyeon Kim
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Sung Hum Yeon
- R&D Center, Huons Co., Ltd., 55 Hanyangdaehak-ro, Ansan 15588, Republic of Korea
| | - Rak Ho Son
- R&D Center, Huons Co., Ltd., 55 Hanyangdaehak-ro, Ansan 15588, Republic of Korea
| | - Seung Hwan Hwang
- R&D Center, Huons Co., Ltd., 55 Hanyangdaehak-ro, Ansan 15588, Republic of Korea
| | - Yi-Sook Jung
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Republic of Korea
- Correspondence: ; Tel.: +82-31-219-3444
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Hou T, Netala VR, Zhang H, Xing Y, Li H, Zhang Z. Perilla frutescens: A Rich Source of Pharmacological Active Compounds. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27113578. [PMID: 35684514 PMCID: PMC9182122 DOI: 10.3390/molecules27113578] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 05/14/2022] [Accepted: 05/21/2022] [Indexed: 11/16/2022]
Abstract
Perilla frutescens (L.) Britton, an important pharmaceutical and nutraceutical crop, is widely cultivated in East Asian countries. In this review, we present the latest research findings on the phytochemistry and pharmacological activities of P. frutescens. Different databases, including PubMed, Scopus, CNKI, Agricola, Scifinder, Embase, ScienceDirect, DOAJ, and Web of Science, were searched to present the best review. In this review, we clearly represent the active constituents responsible for each and every pharmacological activity, plausible mechanism of action, and maximum inhibitory concentrations, as well as IC50 values. Approximately 400 different bioactive compounds, including alkaloids, terpenoids, quinines, phenylpropanoids, polyphenolic compounds, flavonoids, coumarins, anthocyanins, carotenoids, neolignans, fatty acids, polycosanols, tocopherols, and sitosterols, have been reported in the leaves, seeds, roots, and aerial parts of P. frutescens. The bioactive constituents of P. frutescens exhibited different enzyme-inhibition properties, including antihyaluronidase effects and aldose reductase inhibitory, α-glucosidase inhibitory, xanthine oxidase inhibitory, and tyrosinase inhibitory properties. P. frutescens showed strong anti-inflammatory, antidepressant, anti-spasmodic, anticancer, antioxidant, antimicrobial, insecticidal, neuroprotective, and hepatoprotective effects. Hence, the active constituents of P. frutescens used in the treatment of diabetes and diabetic complications (retinopathy, neuropathy, and nephropathy), prevention of hyperuricemia in gout patients, hyper pigmentation, allergic conditions, skin inflammation, skin allergy, atopic dermatitis, periodontosis, androgenic alopecia, gastric inflammation, oesophagitis, carcinogenesis, cardiovascular, Alzheimer’s, Parkinson’s, and cerebral ischemic disorders. Furthermore, we revealed the most active constituents and possible mechanisms of the pharmacological properties of P. frutescens.
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Affiliation(s)
- Tianyu Hou
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China; (V.R.N.); (H.Z.); (H.L.)
- Jinzhong Institute of Industrial Technology and Innovation, North University of China, Jinzhong 030600, China
- Correspondence: or (T.H.); (Z.Z.)
| | - Vasudeva Reddy Netala
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China; (V.R.N.); (H.Z.); (H.L.)
| | - Hongjiao Zhang
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China; (V.R.N.); (H.Z.); (H.L.)
| | - Yun Xing
- Graduate School of Humanities, Nagoya University, Nagoya 4648601, Japan;
| | - Huizhen Li
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China; (V.R.N.); (H.Z.); (H.L.)
- Jinzhong Institute of Industrial Technology and Innovation, North University of China, Jinzhong 030600, China
| | - Zhijun Zhang
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China; (V.R.N.); (H.Z.); (H.L.)
- Jinzhong Institute of Industrial Technology and Innovation, North University of China, Jinzhong 030600, China
- Correspondence: or (T.H.); (Z.Z.)
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Kowalska I, Adach W, Stochmal A, Olas B. A comparison of the effects of apigenin and seven of its derivatives on selected biomarkers of oxidative stress and coagulation in vitro. Food Chem Toxicol 2019; 136:111016. [PMID: 31805303 DOI: 10.1016/j.fct.2019.111016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 11/30/2019] [Indexed: 01/10/2023]
Abstract
Apigenin is a phenolic compound widely present in many fruits, vegetables and herbs. Its name originates from Apium: a genus of the Apiaceae. The aim of the present study was to determine the antioxidant or pro-oxidant properties of apigenin and seven of its derivatives, isolated from the aerial parts of barrel medic (Medicago truncatula) and common wheat (Triticum aestivum), in human plasma treated with a hydroxyl radical donor (OH•) in vitro. It also examines their influence on the parameters of coagulation. The compounds were found to demonstrate different effects on oxidative stress and coagulation which may be related to differences in their structure. In particular, apigenin 7-O-{2'-O-feruloyl-[β-D-glucuronopyranosyl(1 → 3)]-β-D- glucuronopyranosyl(1 → 2)-O-β-D-glucopyranoside} demonstrates both antioxidant and anticoagulant activities, and may offer the most promise for the prevention and treatment of cardiovascular disorders of all the phenolic compounds tested so far.
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Affiliation(s)
- Iwona Kowalska
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, State Research Institute, 24-100, Puławy, Poland
| | - Weronika Adach
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Łódź, 90-236, Łódź, Poland
| | - Anna Stochmal
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, State Research Institute, 24-100, Puławy, Poland
| | - Beata Olas
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Łódź, 90-236, Łódź, Poland.
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Abstract
The phytochemical investigation of polar extracts of Lippia alba led to the isolation of a new acetylated flavonoid, apigenin-7-O-[(3-O-acetyl)β-D-glucopyranuronyl(1→2)]-β-D-glucopyranuronide, and of seventeen known compounds: seven iridoids (theveside, geniposidic acid, shanzhiside methyl ester, caryoptoside, 8-epi-loganin, mussaenoside and geniposide), six phenylpropanoids (cistanoside F, forsythoside B, calceolarioside E, acteoside, isoacteoside and 2-acetylacteoside) and four flavonoids (apigenin-7-O-glucuronide, luteolin-7-O-glucuronide, apigenin-7-O-diglucuronide and luteolin-7-O-diglucuronide).
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Affiliation(s)
- Thierry Hennebelle
- Laboratoire de Pharmacognosie, EA 1043, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, BP 83, F-59006 Lille Cedex, France
| | - Sevser Sahpaz
- Laboratoire de Pharmacognosie, EA 1043, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, BP 83, F-59006 Lille Cedex, France
| | - Henry Joseph
- Association pour la promotion des PLAntes MEDicinales et AROMatiques (APLAMEDAROM) de Guadeloupe, F-97142 Les Abymes, Guadeloupe, France
| | - François Bailleul
- Laboratoire de Pharmacognosie, EA 1043, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, BP 83, F-59006 Lille Cedex, France
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Kim J, Kang H, Choi H, Jo A, Oh DR, Kim Y, Im S, Lee SG, Jeong KI, Ryu GC, Choi C. Aqueous Extract of Perilla frutescens var. acuta Relaxes the Ciliary Smooth Muscle by Increasing NO/cGMP Content In Vitro and In Vivo. Molecules 2018; 23:molecules23071777. [PMID: 30029520 PMCID: PMC6100439 DOI: 10.3390/molecules23071777] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 07/12/2018] [Accepted: 07/17/2018] [Indexed: 01/30/2023] Open
Abstract
The leaves of Perilla frutescens var. acuta (PFA) are commonly used as a traditional medicine in Korea, Japan, and China. We previously showed that PFA attenuates eye fatigue by improving visual accommodation through a clinical study. However, detailed mechanisms and chemical compounds have not been studied. In this study, we analyzed the active compounds in an aqueous extract of PFA involved in ciliary muscle relaxation in vitro and in vivo. NMR and MS analyses showed that the PFA extract contained mainly luteolin-7-O-diglucuronide and apigenin-7-O-diglucuronide. The composition after freeze-drying and spray-drying was similar. Freeze-dried PFA (50 µg/mL, 100 µg/mL, and 200 µg/mL) increased nitric oxide and cGMP levels in ciliary muscle cells isolated from the eyes of rats. [Ca2+]i decreased in a dose-dependent manner. Furthermore, Sprague-Dawley rats treated with freeze-dried PFA (200 mg/kg, orally) showed significantly increased cGMP levels compared with the control group and irradiated with white light. Our results suggest that PFA extract has the potential to reduce eye fatigue by relaxing ciliary muscles.
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Affiliation(s)
- Jaeyong Kim
- Jeonnam Institute of Natural Resources Research, Jangheung-gun, Jeollanamdo 59338, Korea.
| | - Huwon Kang
- Jeonnam Institute of Natural Resources Research, Jangheung-gun, Jeollanamdo 59338, Korea.
| | - Hakjoon Choi
- Jeonnam Institute of Natural Resources Research, Jangheung-gun, Jeollanamdo 59338, Korea.
| | - Ara Jo
- Jeonnam Institute of Natural Resources Research, Jangheung-gun, Jeollanamdo 59338, Korea.
| | - Dooi-Ri Oh
- Jeonnam Institute of Natural Resources Research, Jangheung-gun, Jeollanamdo 59338, Korea.
| | - Yujin Kim
- Jeonnam Institute of Natural Resources Research, Jangheung-gun, Jeollanamdo 59338, Korea.
| | - Sojeong Im
- Jeonnam Institute of Natural Resources Research, Jangheung-gun, Jeollanamdo 59338, Korea.
| | - Seul-Gi Lee
- Jeonnam Institute of Natural Resources Research, Jangheung-gun, Jeollanamdo 59338, Korea.
| | - Kyeong-In Jeong
- Department of Optometry and optic science Dong-Shin University, Naju 58245, Korea.
| | - Geun-Chang Ryu
- Department of Optometry and optic science Dong-Shin University, Naju 58245, Korea.
| | - Chulyung Choi
- Jeonnam Institute of Natural Resources Research, Jangheung-gun, Jeollanamdo 59338, Korea.
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Marczak Ł, Znajdek-Awiżeń P, Bylka W. The Use of Mass Spectrometric Techniques to Differentiate Isobaric and Isomeric Flavonoid Conjugates from Axyris amaranthoides. Molecules 2016; 21:E1229. [PMID: 27657025 PMCID: PMC6273421 DOI: 10.3390/molecules21091229] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 09/01/2016] [Accepted: 09/08/2016] [Indexed: 11/30/2022] Open
Abstract
Flavonoids are a group of compounds that are commonly found in various plants, where they play important roles in many processes, including free radical scavenging and UV protection. These compounds can also act as chemical messengers, physiological regulators or protectants against pathogens in the defense reactions of plants. Flavonoid activity is regulated by the addition of various substituents, usually mono- or oligosaccharides of common sugars, such as glucose, rhamnose or galactose. In some plants, glucuronic acid is attached, and this sugar is often acylated by phenylpropanoic acids. Identification of these compounds and their derivatives is of great importance to understanding their role in plant metabolism and defense mechanisms; this research is important because flavonoids are frequently a significant constituent of the human diet. In this study, we identify the flavonoid conjugates present in Axyris amaranthoides L. extracts and demonstrate the usefulness of high-resolution mass spectrometry (HRMS) analyzers for the differentiation of isobaric compounds and the utility of fragmentation spectra for the differentiation of isomeric structures. According to our knowledge, some of the structures, especially dehydrodiferulated conjugates of tricin, whose structures are proposed here have been found for the first time in plant material.
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Affiliation(s)
- Łukasz Marczak
- European Centre for Bioinformatics and Genomics, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland.
| | - Paulina Znajdek-Awiżeń
- Department of Pharmacognosy, Poznan University of Medical Sciences, Świecickiego 4, 60-781 Poznan, Poland.
| | - Wiesława Bylka
- Department of Pharmacognosy, Poznan University of Medical Sciences, Świecickiego 4, 60-781 Poznan, Poland.
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Si CL, Xu GH, Huang XF, Du ZG, Wu L, Hu WC. Phytochemical Investigation of Hydroalcoholic Extractives from Branches of Fraxinus velutina. Chem Nat Compd 2016. [DOI: 10.1007/s10600-016-1569-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ono E, Ruike M, Iwashita T, Nomoto K, Fukui Y. Co-pigmentation and flavonoid glycosyltransferases in blue Veronica persica flowers. PHYTOCHEMISTRY 2010; 71:726-35. [PMID: 20223486 DOI: 10.1016/j.phytochem.2010.02.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2009] [Revised: 12/17/2009] [Accepted: 02/09/2010] [Indexed: 05/23/2023]
Abstract
Glycosylation is one of the key modification steps for plants to produce a broad spectrum of flavonoids with various structures and colors. A survey of flavonoids in the blue flowers of Veronica persica Poiret (Lamiales, Scrophulariaceae), which is native of Eurasia and now widespread worldwide, led to the identification of highly glycosylated flavonoids, namely delphinidin 3-O-(2-O-(6-O-p-coumaroyl-glucosyl)-6-O-p-coumaroyl-glucoside)-5-O-glucoside (1) and apigenin 7-O-(2-O-glucuronosyl)-glucuronide (2), as two of its main flavonoids. Interestingly, the latter flavone glucuronide (2) caused a bathochromic shift on the anthocyanin (1) toward a blue hue in a dose-dependent manner, showing an intermolecular co-pigment effect. In order to understand the molecular basis for the biosynthesis of this glucuronide, we isolated a cDNA encoding a UDP-dependent glycosyltransferase (UGT88D8), based on the structural similarity to flavonoid 7-O-glucuronosyltransferases (F7GAT) from Lamiales plants. Enzyme assays showed that the recombinant UGT88D8 protein catalyzes the 7-O-glucuronosylation of apigenin and its related flavonoids with preference to UDP-glucuronic acid as a sugar donor. Furthermore, we identified and functionally characterized a cDNA encoding another UGT, UGT94F1, as the anthocyanin 3-O-glucoside-2''-O-glucosyltransferase (A3Glc2''GlcT), according to the structural similarity to sugar-sugar glycosyltransferases classified to the cluster IV of flavonoid UGTs. Preferential expression of UGT88D8 and UGT94F1 genes in the petals supports the idea that these UGTs play an important role in the biosynthesis of key flavonoids responsible for the development of the blue color of V. persica flowers.
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Affiliation(s)
- Eiichiro Ono
- Institute for Health Care Science, Suntory Ltd., Mishima, Osaka, Japan
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Noguchi A, Horikawa M, Fukui Y, Fukuchi-Mizutani M, Iuchi-Okada A, Ishiguro M, Kiso Y, Nakayama T, Ono E. Local differentiation of sugar donor specificity of flavonoid glycosyltransferase in Lamiales. THE PLANT CELL 2009; 21:1556-72. [PMID: 19454730 PMCID: PMC2700533 DOI: 10.1105/tpc.108.063826] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2008] [Revised: 04/21/2009] [Accepted: 05/01/2009] [Indexed: 05/18/2023]
Abstract
Flavonoids are most commonly conjugated with various sugar moieties by UDP-sugar:glycosyltransferases (UGTs) in a lineage-specific manner. Generally, the phylogenetics and regiospecificity of flavonoid UGTs are correlated, indicating that the regiospecificity of UGT differentiated prior to speciation. By contrast, it is unclear how the sugar donor specificity of UGTs evolved. Here, we report the biochemical, homology-modeled, and phylogenetic characterization of flavonoid 7-O-glucuronosyltransferases (F7GAT), which is responsible for producing specialized metabolites in Lamiales plants. All of the Lamiales F7GATs were found to be members of the UGT88-related cluster and specifically used UDP-glucuronic acid (UDPGA). We identified an Arg residue that is specifically conserved in the PSPG box in the Lamiales F7GATs. Substitution of this Arg with Trp was sufficient to convert the sugar donor specificity of the Lamiales F7GATs from UDPGA to UDP-glucose. Homology modeling of the Lamiales F7GAT suggested that the Arg residue plays a critical role in the specific recognition of anionic carboxylate of the glucuronic acid moiety of UDPGA with its cationic guanidinium moiety. These results support the hypothesis that differentiation of sugar donor specificity of UGTs occurred locally, in specific plant lineages, after establishment of general regiospecificity for the sugar acceptor. Thus, the plasticity of sugar donor specificity explains, in part, the extraordinary structural diversification of phytochemicals.
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Affiliation(s)
- Akio Noguchi
- Institute for Health Care Science, Suntory Ltd., Suntory Research Center, Shimamoto, Mishima, Osaka 618-8503, Japan
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Wang Y, Xue X, Xiao Y, Zhang F, Xu Q, Liang X. Purification and preparation of compounds from an extract of Scutellaria barbata D. Don using preparative parallel high performance liquid chromatography. J Sep Sci 2008; 31:1669-76. [PMID: 18461642 DOI: 10.1002/jssc.200700609] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Preparative parallel high performance liquid chromatography combined with solvent partition and other pretreatments were adopted to separate and purify compounds from an extract of Scutellaria barbata D. Don. Mass-triggered fraction collection allowed the rapid and precise isolation of target compounds. Twelve compounds were isolated from the extract of S. barbata D. Don, their purity in area percent was determined by HPLC analysis, and the structures of seven compounds were further identified with HPLC/ESI-MS, (1)H NMR, and( 13)C NMR, among which 4-(3,4-dihydroxy-phenyl)-but-3-en-2-one, acacetin-7-diglucuronide, and luteolin-7-diglucuronide were the first to be identified from this plant. The results demonstrated that multi-channel parallel preparative HPLC/UV/MS is an efficient method for isolation and purification of compounds from natural products.
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Affiliation(s)
- Yanping Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
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Murai T, Samata N, Iwabuchi H, Ikeda T. HUMAN UDP-GLUCURONOSYLTRANSFERASE, UGT1A8, GLUCURONIDATES DIHYDROTESTOSTERONE TO A MONOGLUCURONIDE AND FURTHER TO A STRUCTURALLY NOVEL DIGLUCURONIDE. Drug Metab Dispos 2006; 34:1102-8. [PMID: 16595710 DOI: 10.1124/dmd.106.009621] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We identified human UDP-glucuronosyltransferase (UGT) isoforms responsible for producing dihydrotestosterone (DHT) diglucuronide, a novel glucuronide in which the second glucuronosyl moiety is attached at the C2' position of the first glucuronosyl moiety, leading to diglucuronosyl conjugation of a single hydroxyl group of DHT at the C17 position. Incubation of the DHT monoglucuronide with 12 cDNA-expressed recombinant human UGT isoforms and uridine 5'-diphosphoglucuronic acid resulted in a low but measurable DHT diglucuronidation activity primarily with UGT1A8, a gastrointestinal UGT, and to a lesser extent with UGT1A1 and UGT1A9. In contrast, the activity of DHT monoglucuronidation was high and was found in UGT2B17, UGT2B15, UGT1A8, and UGT1A4 in descending order. Among the 12 UGT isoforms tested, only UGT1A8 was capable of producing DHT diglucuronide from DHT. The kinetics of DHT diglucuronidation by microsomes from human liver and intestine fitted the Michaelis-Menten model, and the V(max)/K(m) value for the intestinal microsomes was approximately 4 times greater than that for the liver microsomes.
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Affiliation(s)
- Takahiro Murai
- Drug Metabolism and Pharmacokinetics Research Laboratories, Sankyo Co., Ltd., Shinagawa-ku, Tokyo 140-8710, Japan.
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Luteolin diglucuronide from Perilla nankinensis. Chem Nat Compd 2006. [DOI: 10.1007/s10600-006-0049-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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16
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Frański R, Eitner K, Sikorska M, Matławska I, Stobiecki M. Electrospray mass spectrometric decomposition of some glucuronic acid-containing flavonoid diglycosides. PHYTOCHEMICAL ANALYSIS : PCA 2003; 14:170-175. [PMID: 12793465 DOI: 10.1002/pca.703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Mass spectrometric fragmentation patterns of herbacetin 3-O-glucopyranoside-8-O-glucuronopyranoside (1), gossypetin 3-O-glucopyranoside-8-O-glucuronopyranoside (2) and takakin 7-O-glucopyranoside-8-O-glucuronopyranoside (3) were elucidated from mass spectra obtained with electrospray ionisation. The usefulness of the fragmentation patterns observed in the positive and negative mode for structural elucidation of the studied compounds is discussed. The fragmentation of 3 was substantially different from 1 and 2, especially in the negative mode. In order to explain these differences, theoretical calculations were performed.
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Affiliation(s)
- Rafał Frański
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland
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Nakazawa T, Yasuda T, Ueda J, Ohsawa K. Antidepressant-like effects of apigenin and 2,4,5-trimethoxycinnamic acid from Perilla frutescens in the forced swimming test. Biol Pharm Bull 2003; 26:474-80. [PMID: 12673028 DOI: 10.1248/bpb.26.474] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We studied the effects of apigenin and 2,4,5-trimethoxycinnamic acid (TMCA) on the behavioral despair test (forced swimming test), and the central noradrenergic, dopaminergic and serotonergic activities in mice. Apigenin at intraperitoneal doses of 12.5 and 25 mg/kg significantly decreased the duration of immobility in the forced swimming test in mice. At 100 mg/kg, the duration of immobility was returned to the control level in the test. On the other hand, TMCA treatment (25-200 mg/kg, i.p.) failed to significantly alter the duration of immobility. Based on the behavioral data, we examined changes in the monoamine turnover in mice having been subjected to forced swimming for 40 min. The monoamine turnover was measured in seven brain regions. Forced swimming exposure induced a significant decrease in dihydroxyphenylacetic acid (DOPAC)/dopamine (DA) in the striatum and amygdala and in 5-hydroxyindoleacetic acid (5-HIAA)/5-hydroxytriptamine (5-HT) in the hypothalamus, and a significant increase in DOPAC/DA in the thalamus and hypothalamus and in 3-methoxy-4-hydroxyphenylethyleneglycol (MHPG)/norepinephrine (NE) in the amygdala, frontal cortex, hypothalamus, and midbrain. Apigenin (25 mg/kg) treatment produced attenuation of forced swim test-induced decrease of DA turnover in the amygdala and increase of DA turnover in the hypothalamus. Furthermore, intraperitoneal administration of haloperidol (0.2 mg/kg), a dopamine D(2) antagonist, blocked the apigenin (25 mg/kg)-induced decrease in immobility in the forced swimming test. These behavioral and biochemical results indicate the antidepressant properties of apigenin, which may be mediated by the dopaminergic mechanisms in the mouse brain.
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Affiliation(s)
- Takahiro Nakazawa
- Department of Phytochemistry, Tohoku Pharmaceutical University, Komatsushima, Sendai, Japan
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Ueda H, Yamazaki C, Yamazaki M. Luteolin as an anti-inflammatory and anti-allergic constituent of Perilla frutescens. Biol Pharm Bull 2002; 25:1197-202. [PMID: 12230117 DOI: 10.1248/bpb.25.1197] [Citation(s) in RCA: 177] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Oral administration of the perilla leaf extract (PLE) to mice inhibits inflammation, allergic response, and tumor necrosis factor-alpha production. We also found that PLE suppressed the tumor necrosis factor-alpha (TNF-alpha) production in vitro. Using the inhibitory activity of TNF-alpha production in vitro as the index for isolation, we searched the active constituents from PLE and isolated luteolin, rosmarinic acid and caffeic acid as active components. Among the isolated compounds, only luteolin showed in vivo activity: inhibition of serum tumor necrosis factor-alpha production, inhibition of arachidonic acid-induced ear edema, inhibition of 12-O-tetradecanoylphorbol-13-acetate-induced ear edema and inhibition of oxazolone-induced allergic edema. These results suggest that luteolin is a genuinely active constituent which is accountable for the oral effects of perilla.
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Affiliation(s)
- Hiroshi Ueda
- Department of Medicinal Chemistry, Faculty of Pharmaceutical Sciences, Teikyo University, Tsukui-gun, Kanagawa, Japan
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Murai T, Tsuruta F, Terao T, Ikeda T, Iwabuchi H. Formation of a Structurally Novel, Serial Diglucuronide of 4-Hydroxybiphenyl by Further Glucuronidation of a Monoglucuronide in Dog Liver Microsomes. Drug Metab Pharmacokinet 2002; 17:457-66. [PMID: 15618697 DOI: 10.2133/dmpk.17.457] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Incubation of 4-hydroxybiphenyl (p-phenylphenol) in the presence of UDP-glucuronic acid (UDPGA) with liver microsomes from male and female dogs produced a more polar metabolite peak than a simultaneously produced peak of 4-hydroxybiphenyl monoglucuronide in the high performance liquid chromatography (HPLC) chromatogram. Tandem mass spectrometry (MS/MS) and two-dimensional nuclear magnetic resonance (NMR) analyses revealed this polar metabolite as a 4-hydroxybiphenyl diglucuronide having a beta-D-glucuronopyranosyl-(1-->2)-beta-D-glucuronopyranosyl moiety, where the two glucuronic acids are connected directly at the 1''-->2' position. Liver microsomes from Sprague-Dawley rat, cynomolgus monkey and human, converted 4-hydroxybiphenyl only to the monoglucuronide, suggesting that there is a dog UDP-glucuronosyltransferase (UGT), with a wider substrate specificity capable of glucuronidating 4-hydroxybiphenyl monoglucuronide to the diglucuronide.
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Affiliation(s)
- Takahiro Murai
- Pharmacokinetics and Drug Delivery Research Laboratories, Sankyo Co., Ltd., Tokyo, Japan.
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Dũng NX, Mõi LD, Cu' LD, Leclercq PA. Essential Oil Constituents from the Aerial Parts ofPerilla frutescens(L.) Britton. JOURNAL OF ESSENTIAL OIL RESEARCH 1995. [DOI: 10.1080/10412905.1995.9698555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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