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Zhang Z, Wang H, Kuang Z, Liang H, Ju Y, Meng D. From Tea to Health: Exploring Abrus mollis for Liver Protection and Unraveling Its Potential Mechanisms. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:15145-15155. [PMID: 37800321 DOI: 10.1021/acs.jafc.3c04816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Abrus mollis Hance is a characteristic medicinal herb which is used in Guangdong and Guangxi provinces of China for making soup, medicinal meals, and herbal tea to treat dampheat jaundice and rib discomfort. Current phytochemical study on A. mollis led to the isolation of four new flavones, mollisone A-D (1-4), and thirty two known compounds (5-36). Their structures were characterized by an extensive analysis of spectroscopic data including IR, UV, HR-ESI-MS, and 1D and 2D NMR, as well as electronic circular dichroism calculation. In addition, in order to initially understand their biological activities for traditional applications, in vitro antioxidant and hepatoprotective tests were carried out, whose results illustrated that 25 compounds had significant free radical scavenging ability, and compounds 13 and 16 exhibited protective activities on D-GalN-induced LO2 cell damage than the positive control. Moreover, network pharmacological analysis revealed that the hepatoprotective activity of A. mollis involved multitargets and multipathways such as PI3K/Akt, MAPK, and JAK-STAT pathways and various biological processes such as positive regulation of phosphorylation and regulation of kinase activity. These results suggested that this species could serve as a potential hepatoprotective agent for functional food or medicinal use.
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Affiliation(s)
- Zhiqi Zhang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Hanchuan Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Zhulingzhi Kuang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Hui Liang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Yan Ju
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Dali Meng
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, PR China
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Manh Khoa N, Viet Phong N, Yang SY, Min BS, Kim JA. Spectroscopic analysis, kinetic mechanism, computational docking, and molecular dynamics of active metabolites from the aerial parts of Astragalus membranaceusBunge as tyrosinase inhibitors. Bioorg Chem 2023; 134:106464. [PMID: 36921361 DOI: 10.1016/j.bioorg.2023.106464] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/13/2023]
Abstract
A new isoflavane derivative (2), a new natural isoflavane (6), four new oleanane-type triterpenoid saponins (23, 25, 28, and 29), and twenty three known secondary metabolites (1, 3-5, 7-22, 24, 26, and 27) were isolated from the aerial parts of Astragalus membranaceus Bunge. The chemical structures of these compounds were elucidated through spectroscopic analysis and compared with those identified in previous studies. Tyrosinase inhibition ability of isolated compounds (1-29) was evaluated. Of these, compounds 3, 4, 6, and 14 exhibited inhibitory effects, with IC50 values ranging from 24.6 to 59.2 μM. According to kinetic analysis, compounds 3 and 4 were non-competitive inhibitors of tyrosinase, whereas compounds 6 and 14 inhibited tyrosinase in uncompetitive and competitive modes, respectively. Molecular docking analysis identified that compounds 3, 4, and 6 could bind to allosteric sites and compound 14 could bind to the catalytic site of tyrosinase, which is consistent with the results of kinetic studies. Molecular dynamics behaviors of the active compounds in complex with tyrosinase were investigated via 60 ns simulation which demonstrated their high stability. These findings indicate that the aerial parts of A. membranaceus are a potential source of natural tyrosinase inhibitors.
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Affiliation(s)
- Nguyen Manh Khoa
- Vessel-Organ Interaction Research Center, VOICE (MRC), College of Pharmacy, Kyungpook National University, Daegu 41566, Republic of Korea; BK21 FOUR Community-Based Intelligent Novel Drug Discovery Education Unit, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Nguyen Viet Phong
- Vessel-Organ Interaction Research Center, VOICE (MRC), College of Pharmacy, Kyungpook National University, Daegu 41566, Republic of Korea; BK21 FOUR Community-Based Intelligent Novel Drug Discovery Education Unit, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Seo Young Yang
- Department of Pharmaceutical Engineering, Sangji University, Wonju 26339, Republic of Korea
| | - Byung Sun Min
- College of Pharmacy, Drug Research and Development Center, Daegu Catholic University, Gyeongbuk 38430, Republic of Korea.
| | - Jeong Ah Kim
- Vessel-Organ Interaction Research Center, VOICE (MRC), College of Pharmacy, Kyungpook National University, Daegu 41566, Republic of Korea; BK21 FOUR Community-Based Intelligent Novel Drug Discovery Education Unit, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea.
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3
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Synthesis and neuroprotective activity of a (–)-cytisine-isoflavone conjugate. Chem Heterocycl Compd (N Y) 2023. [DOI: 10.1007/s10593-023-03160-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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Lou H, Liu H, Wang H, Zhao Y, Huang L, Fu J, Hao X, Pan W. Diverse flavonoids from the roots of Indigofera stachyodes. Chem Biodivers 2022; 19:e202200676. [PMID: 36069263 DOI: 10.1002/cbdv.202200676] [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: 07/20/2022] [Accepted: 09/06/2022] [Indexed: 11/06/2022]
Abstract
Three new flavonoids , 4'- O - β - D -glucopyranosyl-2 S ,3 R -3,7-dihydroxy-3'-methoxyflavan ( 1 ), (3 R )-7,4'-dihydroxy-5,3'-methoxychalcone ( 2 ), (3 S )-7,2',3'-trihydroxy-6,4'-dimethoxylisoflavan ( 3 ), and one new natural occurring product, (3 S )-6,2',3'-trihydroxy-7,4'-dimethoxylisoflavan ( 4 ), together with eleven known ones ( 5 - 15 ), were isolated from the roots of Indigofera stachyodes . The structures of these compounds were confirmed by UV, IR, MS, and NMR spectroscopic analysis. The absolute configurations of new compounds were elucidated by ECD spectra and chemical method. All the isolated flavonoids were screened for their antioxidant abilities to scavenge DPPH and ABTS + . As results, compounds 2 - 4 , 10 , and 15 exhibited remarkable scavenging activity against both ABTS + and DPPH, with the IC 50 values less than 20 μ M. In addition, compounds 1 , 6 - 9 , and 13 exhibited potential antioxidant scavenging activities, IC 50 values were in the rang of 17.96~85.91 μ M.
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Affiliation(s)
- Huayong Lou
- Guizhou Medical University, State key laboratory of functions and applications of medicinal plants, Baijing road 3491, 550014, Guiyang, CHINA
| | - Hanfei Liu
- Guizhou Medical University, State Key Laboratory of Functions and Applications of Medicinal Plants, Baijin road 3491, Guiyang, CHINA
| | - Huan Wang
- Guizhou Medical University, State Key Laboratory of Functions and Applications of Medicinal Plants, Baijin road 3491, Guiyang, CHINA
| | - Yumin Zhao
- Guizhou University Of Traditional Chinese Medicine, College of pharmacy, Baijin road 3491, Guiyang, CHINA
| | - Lei Huang
- Guizhou Medical University, State Key Laboratory of Functions and Applications of Medicinal Plants, Baijin road 3491, Guiyang, CHINA
| | - Jian Fu
- Guizhou University Of Traditional Chinese Medicine, College of pharmacy, Baijin road 3491, Guiyang, CHINA
| | - Xiaojiang Hao
- Guizhou Medical University, State Key Laboratory of Functions and Applications of Medicinal Plants, Baijin road 3491, Guiyang, CHINA
| | - Weidong Pan
- Guizhou University, School of Pharmaceutical Sciences, 2708 Huaxi avenue, 550025, Guiyang, CHINA
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Chemical Constituents of the Flowers of Pueraria lobata and Their Cytotoxic Properties. PLANTS 2022; 11:plants11131651. [PMID: 35807603 PMCID: PMC9269118 DOI: 10.3390/plants11131651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/20/2022] [Accepted: 06/20/2022] [Indexed: 11/17/2022]
Abstract
The flower of Pueraria lobata (Puerariae Flos) is a reddish-purple to violet-purple flower that blooms between July and September. In our preliminary study, Puerariae Flos extract exhibited significant activity against a human ovarian cancer cell line. This research aims to identify the active compounds in Pueraria Flos. By repeated chromatography, one new tryptophan derivative (1), two new flavanones (4 and 5), and 19 known compounds, including tryptophan derivatives (2 and 3), flavonoids (6–9), isoflavonoids (10–20), a flavonolignan (21), and a phenolic compound (22), were isolated from a methanol extract of Puerariae Flos. The structures of new compounds were elucidated as 13-N-benzoyl-l-tryptophan-1-N-β-d-glucopyranoside (1), 2-hydroxy-5-methoxy-naringenin (4), and 2-hydroxy-5-methoxy-naringenin 7-O-β-d-glucopyranoside (5). Among the isolates, afromosin (17), tectorigenin (11), apigenin (8), glycitein (16), (-)-hydnocarpin (21), irilin D (12), irisolidone 7-O-glucoside (14), and genistein (10) showed cytotoxicity against human ovarian cancer cell line A2780. Apigenin (8) and (-)-hydnocarpin (21) were the most active (IC50 values of 9.99 and 7.36 μM, respectively).
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Metabolic Profile, Biotransformation, Docking Studies and Molecular Dynamics Simulations of Bioactive Compounds Secreted by CG3 Strain. Antibiotics (Basel) 2022; 11:antibiotics11050657. [PMID: 35625301 PMCID: PMC9137728 DOI: 10.3390/antibiotics11050657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/09/2022] [Accepted: 05/10/2022] [Indexed: 02/01/2023] Open
Abstract
Actinobacteria isolated from untapped environments and exposed to extreme conditions such as saltpans are a promising source of novel bioactive compounds. These microorganisms can provide new molecules through either the biosynthetic pathway or the biotransformation of organic molecules. In the present study, we performed a chemical metabolic screening of secondary metabolites secreted by the new strain CG3, which was isolated from a saltpan located in the Sahara of Algeria, via high-performance liquid chromatography coupled with high-resolution mass spectrometry (HPLC-ESI-HRMS). The results indicated that this strain produced five new polyene macrolactams, kenalactams A–E, along with two known compounds, mitomycin C and 6″-hydroxy-4,2′,3′,4″ tetramethoxy-p-terphenyl. Furthermore, the CG3 isolate could have excellent properties for converting the aglycone isoflavone glycitein to the compounds 6,7-dimethoxy-3-(4-methoxyphenyl)chromen-4-one (50) and 6,7-dimethoxy-3-phenylchromen-4-one (54), and the isoflavone genistein can be converted to 5,7-dimethoxy-3-(4-methoxyphenyl)chromen-4-one (52). Docking studies and molecular dynamics simulations indicated that these three isoflavones, generated via biotransformation, are potent inhibitors of the target protein aromatase (CYP19A1); consequently, they can be used to prevent breast cancer risk in postmenopausal women.
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Lin D, Jiang S, Zhang A, Wu T, Qian Y, Shao Q. Structural derivatization strategies of natural phenols by semi-synthesis and total-synthesis. NATURAL PRODUCTS AND BIOPROSPECTING 2022; 12:8. [PMID: 35254538 PMCID: PMC8901917 DOI: 10.1007/s13659-022-00331-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/15/2022] [Indexed: 05/08/2023]
Abstract
Structural derivatization of natural products has been a continuing and irreplaceable source of novel drug leads. Natural phenols are a broad category of natural products with wide pharmacological activity and have offered plenty of clinical drugs. However, the structural complexity and wide variety of natural phenols leads to the difficulty of structural derivatization. Skeleton analysis indicated most types of natural phenols can be structured by the combination and extension of three common fragments containing phenol, phenylpropanoid and benzoyl. Based on these fragments, the derivatization strategies of natural phenols were unified and comprehensively analyzed in this review. In addition to classical methods, advanced strategies with high selectivity, efficiency and practicality were emphasized. Total synthesis strategies of typical fragments such as stilbenes, chalcones and flavonoids were also covered and analyzed as the supplementary for supporting the diversity-oriented derivatization of natural phenols.
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Affiliation(s)
- Ding Lin
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China.
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China.
| | - Senze Jiang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China
| | - Ailian Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China
| | - Tong Wu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China
| | - Yongchang Qian
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China
| | - Qingsong Shao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China.
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China.
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Tseng CH, Lin CF, Aljuffali IA, Huang JR, Yang SH, Fang JY. The effectiveness of synthetic methoxylated isoflavones in delivering to the skin and alleviating psoriasiform lesions via topical absorption. Int J Pharm 2022; 617:121629. [PMID: 35245633 DOI: 10.1016/j.ijpharm.2022.121629] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 02/22/2022] [Accepted: 02/27/2022] [Indexed: 11/28/2022]
Abstract
This study was conducted to appraise the possible potential of synthetic isoflavones (SIFs) on psoriasis treatment. A practical and easy-to-operate approach was employed in synthesizing a series of SIFs, considering that acquiring flavonoids from natural resources is usually expensive, time-consuming, and non-eco-friendly. Seven SIFs derived from daidzein were produced with differences in the location of the hydroxyl groups and degree of methoxylation. The in vitro and in vivo skin absorption of topically applied SIFs was estimated. Further, keratinocytes (HaCaT) were employed as the model to investigate the anti-inflammatory activity of the isoflavones. The lipophilicity was increased from SIF-1 to -7. Noteworthily, there was a parabolic relationship between lipophilicity and skin absorption, with SIF-5 (4',7-dihydroxyisoflavone, daidzein) and SIF-6 (7-hydroxy-3',4'-dimethoxyisoflavone, cladrin) demonstrating the highest retention in pig skin. The methoxylated isoflavone SIF-5 showed the greatest permeation into barrier-deficient skin among the compounds tested, with a 6- and 8-fold increase after lipid and protein removal. The cell-based study exhibited the capability of SIFs to restrain the overexpressed IL-6, IL-8, and CXCL1 in stimulated HaCaT. The therapeutic index (TI) predicted the potential candidates of SIF-5 and SIF-6 for topical application to treat psoriatic inflammation. The imiquimod (IMQ)-driven psoriasiform murine model manifested the inhibition of hyperplasia and immune cell infiltration by topically administered SIF-5 and SIF-6. The epidermal thickness of IMQ-treated skin was decreased from 172 to 40 μm by both isoflavones. This effect was comparable with that of betamethasone, the positive control. The topical treatment of SIF-6 significantly reduced cytokine/chemokine upregulation by IMQ. The methoxylated isoflavone with dramatic anti-inflammatory activity is promising for the development of an antipsoriatic agent.
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Affiliation(s)
- Chih-Hua Tseng
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan; Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Pharmacy, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Chwan-Fwu Lin
- Department of Cosmetic Science, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan; Research Center for Food and Cosmetic Safety and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan
| | - Ibrahim A Aljuffali
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Jhao-Rong Huang
- Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, Kweishan, Taoyuan, Taiwan
| | - Sien-Hung Yang
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Kweishan, Taoyuan, Taiwan; Division of Chinese Internal Medicine, Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan.
| | - Jia-You Fang
- Research Center for Food and Cosmetic Safety and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan; Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, Kweishan, Taoyuan, Taiwan.
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Gaspar FV, Caleffi GS, Costa‐Júnior PCT, Costa PRR. Enantioselective Synthesis of Isoflavanones and Pterocarpans through a Ru
II
‐Catalyzed ATH‐DKR of Isoflavones. ChemCatChem 2021. [DOI: 10.1002/cctc.202101252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Francisco V. Gaspar
- Laboratório de Química Bioorgânica (LQB) Instituto de Pesquisas de Produtos Naturais Universidade Federal do Rio de Janeiro Av. Carlos Chagas Filho 373, Bloco H Cidade Universitária 21941-902 Rio de Janeiro RJ Brasil
| | - Guilherme S. Caleffi
- Laboratório de Química Bioorgânica (LQB) Instituto de Pesquisas de Produtos Naturais Universidade Federal do Rio de Janeiro Av. Carlos Chagas Filho 373, Bloco H Cidade Universitária 21941-902 Rio de Janeiro RJ Brasil
| | - Paulo C. T. Costa‐Júnior
- Laboratório de Química Bioorgânica (LQB) Instituto de Pesquisas de Produtos Naturais Universidade Federal do Rio de Janeiro Av. Carlos Chagas Filho 373, Bloco H Cidade Universitária 21941-902 Rio de Janeiro RJ Brasil
| | - Paulo R. R. Costa
- Laboratório de Química Bioorgânica (LQB) Instituto de Pesquisas de Produtos Naturais Universidade Federal do Rio de Janeiro Av. Carlos Chagas Filho 373, Bloco H Cidade Universitária 21941-902 Rio de Janeiro RJ Brasil
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Chen FL, Zhang HS, Yang J, Chai L, Zhong M, Liu B, Yuan J, Jiang ZH, Zhu GY. Phytochemical and chemotaxonomic studies on Phyllodium pulchellum (Leguminosae). BIOCHEM SYST ECOL 2021. [DOI: 10.1016/j.bse.2021.104243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Cardullo N, Muccilli V, Pulvirenti L, Tringali C. Natural Isoflavones and Semisynthetic Derivatives as Pancreatic Lipase Inhibitors. JOURNAL OF NATURAL PRODUCTS 2021; 84:654-665. [PMID: 33646787 DOI: 10.1021/acs.jnatprod.0c01387] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Obesity, now widespread all over the world, is frequently associated with some chronic diseases. Thus, there is a growing interest in the prevention and treatment of obesity. To date, the only antiobesity drug is orlistat, a natural product-derived pancreatic lipase (PL) inhibitor with some undesired side effects. In the last decades, many natural compounds or derivatives have been evaluated as potential PL inhibitors, and natural polyphenols are among the most promising for possible exploitation as antiobesity agents. However, few studies have been devoted to isoflavones. In this work, we report a study on the PL inhibitory properties of a small library of semisynthetic isoflavone derivatives together with the natural leads daidzein (1), genistein (2), and formononetin (3). In vitro lipase inhibition assay showed that 2 is the most promising PL inhibitor. Among synthetic isoflavones, the hydroxylated and brominated derivatives were more potent than their natural leads. Detailed studies through fluorescence measurements and kinetics of lipase inhibition showed that 2 and the bromoderivatives 10 and 11 have the greatest affinity for PL. Docking studies corroborated these findings highlighting the interactions between isoflavones and the enzyme, confirming that hydroxylation and bromination are useful modifications.
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Affiliation(s)
- Nunzio Cardullo
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, V.le A. Doria 6, 95125 Catania, Italy
| | - Vera Muccilli
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, V.le A. Doria 6, 95125 Catania, Italy
| | - Luana Pulvirenti
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, V.le A. Doria 6, 95125 Catania, Italy
| | - Corrado Tringali
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, V.le A. Doria 6, 95125 Catania, Italy
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14
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Uemura T, Sonoda M, Tanimori S. Easy access to both enantiomers of 5-hydroxyequol and 3-(4-hydroxyphenyl)chroman-8-ol. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Assirey E, Alsaggaf A, Naqvi A, Moussa Z, Okasha RM, Afifi TH, Abd-El-Aziz AS. Synthesis, Biological Assessment, and Structure Activity Relationship Studies of New Flavanones Embodying Chromene Moieties. Molecules 2020; 25:molecules25030544. [PMID: 32012737 PMCID: PMC7037824 DOI: 10.3390/molecules25030544] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 01/15/2020] [Accepted: 01/26/2020] [Indexed: 02/04/2023] Open
Abstract
Novel flavanones that incorporate chromene motifs are synthesized via a one-step multicomponent reaction. The structures of the new chromenes are elucidated by using IR, 1H-NMR, 13C-NMR, 1H-1H COSY, HSQC, HMBC, and elemental analysis. The new compounds are screened for their in vitro antimicrobial and cytotoxic activities. The antimicrobial properties are investigated and established against seven human pathogens, employing the agar well diffusion method and the minimum inhibitory concentrations. A majority of the assessed derivatives are found to exhibit significant antimicrobial activities against most bacterial strains, in comparison to standard reference drugs. Moreover, their cytotoxicity is appraised against four different human carcinoma cell lines: human colon carcinoma (HCT-116), human hepatocellular carcinoma (HepG-2), human breast adenocarcinoma (MCF-7), and adenocarcinoma human alveolar basal epithelial cell (A-549). All the desired compounds are subjected to in-silico studies, forecasting their drug likeness, bioactivity, and the absorption, distribution, metabolism, and excretion (ADME) properties prior to their synthetic assembly. The in-silico molecular docking evaluation of all the targeted derivatives is undertaken on gyrase B and the cyclin-dependent kinase. The in-silico predicted outcomes were endorsed by the in vitro studies.
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Affiliation(s)
- Eman Assirey
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (E.A.); (A.A.); (A.N.); (R.M.O.)
- Department of Chemistry, University of Prince Edward Island, 550 University Avenue, Charlottetown, PEI C1A 4P3, Canada
| | - Azhaar Alsaggaf
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (E.A.); (A.A.); (A.N.); (R.M.O.)
- Department of Chemistry, University of Prince Edward Island, 550 University Avenue, Charlottetown, PEI C1A 4P3, Canada
| | - Arshi Naqvi
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (E.A.); (A.A.); (A.N.); (R.M.O.)
| | - Ziad Moussa
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain 15551, UAE;
| | - Rawda M. Okasha
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (E.A.); (A.A.); (A.N.); (R.M.O.)
| | - Tarek H. Afifi
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (E.A.); (A.A.); (A.N.); (R.M.O.)
| | - Alaa S. Abd-El-Aziz
- Department of Chemistry, University of Prince Edward Island, 550 University Avenue, Charlottetown, PEI C1A 4P3, Canada
- Correspondence: ; Tel.: +1-(902)-566-0400
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Gramec Skledar D, Tvrdý V, Kenda M, Zega A, Pour M, Horký P, Mladěnka P, Sollner Dolenc M, Peterlin Mašič L. Applicability of the OECD 455 in-vitro assay for determination of hERa agonistic activity of isoflavonoids. Toxicol Appl Pharmacol 2019; 386:114831. [PMID: 31756431 DOI: 10.1016/j.taap.2019.114831] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 09/30/2019] [Accepted: 11/16/2019] [Indexed: 12/12/2022]
Abstract
The Organisation for Economic Co-operation and Development (OECD)-validated transactivation assay using the human estrogen receptor alpha (hERα) Hela9903 cell line is used for activity evaluation of hERα agonists and antagonists. Due to many advantages, this assay is broadly used as an initial screening process. However, response significantly higher from that of 17-β estradiol (E2) was observed with phytoestrogens for concentrations commonly above 1 μM in previous studies. The main aim of this study was thus to ascertain the applicability of OECD protocol 455 for evaluation of estrogenic activity of natural flavonoids, including known phytoestrogens. The estrogenic activities of aglycones as well as of O-methylated and glycosylated flavonoids were evaluated. Supra-maximal luciferase activity was seen for most of the flavonoids tested at concentrations even below 1 μM. hERα-mediated luciferase expression was confirmed with the competition assay specified in OECD protocol 455. However, at concentrations above 1 μM, non-specific interactions were also observed. Instead of EC50 values, which could not be determined for most of the isoflavonoids tested, the concentrations corresponding to 10% (PC10) and 50% (PC50) of the maximum activity of the positive control, E2, were used for quantitative determination of estrogenic activities. Appropriate evaluation of the data obtained with the current OECD protocol 455 validated assay represents a valuable tool for initial screening of natural flavonoids for estrogenic activity.
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Affiliation(s)
- Darja Gramec Skledar
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Václav Tvrdý
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Maša Kenda
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Anamarija Zega
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Milan Pour
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Pavel Horký
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Přemysl Mladěnka
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | | | - Lucija Peterlin Mašič
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia.
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Mendieta-Moctezuma A, Rugerio-Escalona C, Villa-Ruano N, Gutierrez RU, Jiménez-Montejo FE, Fragoso-Vázquez MJ, Correa-Basurto J, Cruz-López MC, Delgado F, Tamariz J. Synthesis and biological evaluation of novel chromonyl enaminones as α-glucosidase inhibitors. Med Chem Res 2019. [DOI: 10.1007/s00044-019-02320-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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18
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Promchai T, Janhom P, Maneerat W, Rattanajak R, Kamchonwongpaisan S, Pyne SG, Limtharakul T. Antibacterial and cytotoxic activities of phenolic constituents from the stem extracts of Spatholobus parviflorus. Nat Prod Res 2018; 34:1394-1398. [PMID: 30587032 DOI: 10.1080/14786419.2018.1512990] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A new 2-arylbenzofuran, spathobenzofuran (1), together with ten known compounds including a 2-arylbenzofuran, three pterocarpans and six isoflavones were isolated from the acetone crude extract of the stems of Spatholobus parviflorus. All compounds were characterised by spectroscopic methods. Compound 4 was active (MIC 8 µg/mL) against Gram-negative Pseudomonas aeruginosa TISTR 781 while compound 2 had modest activity against Gram-positive Staphylococcus aureus TISTR 1466 with a MIC value of 16 µg/mL. All isolated compounds showed no cytotoxicity against Vero and KB cells.
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Affiliation(s)
- Thanika Promchai
- Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science, Chiang Mai University, Chiang Mai, Thailand.,The Graduate School, Chiang Mai University, Chiang Mai, Thailand
| | - Pawinee Janhom
- Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
| | - Wisanu Maneerat
- School of Science, Mae Fah Luang University, Chiang Rai, Thailand
| | - Roonglawan Rattanajak
- Medical Molecular Biology Research Unit, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathumthani, Thailand
| | - Sumalee Kamchonwongpaisan
- Medical Molecular Biology Research Unit, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathumthani, Thailand
| | - Stephen G Pyne
- School of Chemistry, University of Wollongong, Wollongong, New South Wales, Australia
| | - Thunwadee Limtharakul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science, Chiang Mai University, Chiang Mai, Thailand.,Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Chiang Mai University, Chiang Mai, Thailand
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19
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New antibacterial and 5-lipoxygenase activities of synthetic benzyl phenyl ketones: Biological and docking studies. Bioorg Chem 2018; 82:385-392. [PMID: 30428417 DOI: 10.1016/j.bioorg.2018.10.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/15/2018] [Accepted: 10/23/2018] [Indexed: 12/16/2022]
Abstract
We investigated twelve benzyl phenyl ketone derivatives which are synthetic precursors of isoflavonoids that are shown be good 5-hLOX inhibitors, especially those that have the catechol group, but these precursors never have been assayed as 5-hLOX inhibitors being a novelty as inhibitors of the enzyme, due to sharing important structural characteristics. Screening assays, half maximal inhibitory concentration (IC50) and kinetic assays of all the studied molecules (5 µg/ml in media assay) showed that 1-(2,4-dihydroxy-3-methylphenyl)-2-(3-chlorophenyl)-ethanone (K205; IC50 = 3.5 µM; Ki = 4.8 µM) and 1-(2,4-dihydroxy-3-methylphenyl)-2-(2-nitrophenyl)-ethanone (K206; IC50 = 2.3 µM; Ki = 0.7 µM) were potent, selective, competitive and nonredox inhibitors of 5-hLOX. Antioxidant behavior was also assayed by DPPH, FRAP, and assessing ROS production, and those with antibacterial and antiproliferative properties relating to 1-(2,4-dihydroxy-3-methylphenyl)-2-(2-chlorophenyl)-ethanone (K208) established it as the most interesting and relevant compound studied, as it showed nearly 100% inhibition of bacterial growth of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). Finally, docking studies were done that helped to characterize how the inhibitor structures correlated to decreased 5-hLOX activity.
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20
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Mrug GP, Demydchuk BA, Bondarenko SP, Sviripa VM, Wyrebek P, Mohler JL, Fiandalo MV, Liu C, Frasinyuk MS, Watt DS. A Direct Synthesis of 2‐(ω‐Carboxyalkyl)isoflavones from
ortho
‐Hydroxylated Deoxybenzoins. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801171] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Galyna P. Mrug
- Institute of Bioorganic Chemistry and Petrochemistry National Academy of Science of Ukraine 02094 Kyiv Ukraine
| | - Bohdan A. Demydchuk
- Institute of Bioorganic Chemistry and Petrochemistry National Academy of Science of Ukraine 02094 Kyiv Ukraine
| | | | - Vitaliy M. Sviripa
- Center for Pharmaceutical Research and Innovation College of Pharmacy University of Kentucky 0509 Lexington KY 40536‐ USA
- Department of Pharmaceutical Sciences College of Pharmacy University of Kentucky 40536‐0509 Lexington KY USA
| | - Przemyslaw Wyrebek
- Center for Pharmaceutical Research and Innovation College of Pharmacy University of Kentucky 0509 Lexington KY 40536‐ USA
- Department of Molecular and Cellular Biochemistry College of Medicine University of Kentucky 40536‐0509 Lexington KY USA
| | - James L. Mohler
- Department of Urology Roswell Park Cancer Institute 14263 Buffalo NY USA
| | | | - Chunming Liu
- Department of Molecular and Cellular Biochemistry College of Medicine University of Kentucky 40536‐0509 Lexington KY USA
- Lucille Parker Markey Cancer Center University of Kentucky 40536‐0509 Lexington KY USA
| | - Mykhaylo S. Frasinyuk
- Institute of Bioorganic Chemistry and Petrochemistry National Academy of Science of Ukraine 02094 Kyiv Ukraine
- Center for Pharmaceutical Research and Innovation College of Pharmacy University of Kentucky 0509 Lexington KY 40536‐ USA
- Department of Molecular and Cellular Biochemistry College of Medicine University of Kentucky 40536‐0509 Lexington KY USA
| | - David S. Watt
- Center for Pharmaceutical Research and Innovation College of Pharmacy University of Kentucky 0509 Lexington KY 40536‐ USA
- Department of Molecular and Cellular Biochemistry College of Medicine University of Kentucky 40536‐0509 Lexington KY USA
- Lucille Parker Markey Cancer Center University of Kentucky 40536‐0509 Lexington KY USA
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21
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Park JW, Kang B, Dong VM. Catalytic Alkyne Arylation Using Traceless Directing Groups. Angew Chem Int Ed Engl 2018; 57:13598-13602. [PMID: 30066448 PMCID: PMC6661160 DOI: 10.1002/anie.201804955] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/01/2018] [Indexed: 12/12/2022]
Abstract
By using Pd0 /Mandyphos, we achieved a three-component aminoarylation of alkynes to generate enamines, which are then hydrolyzed to either α-arylphenones or α,α-diarylketones. This Pd-catalyzed method overcomes established known pathways to enable the use of amines as traceless directing groups for C-C bond formation.
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Affiliation(s)
- Jung-Woo Park
- Department of Chemistry, University of California, Irvine, 4403 Natural Sciences 1, Irvine, California, 92697, USA
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Bubwoong Kang
- Department of Chemistry, University of California, Irvine, 4403 Natural Sciences 1, Irvine, California, 92697, USA
| | - Vy M Dong
- Department of Chemistry, University of California, Irvine, 4403 Natural Sciences 1, Irvine, California, 92697, USA
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22
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Park J, Kang B, Dong VM. Catalytic Alkyne Arylation Using Traceless Directing Groups. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804955] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jung‐Woo Park
- Department of Chemistry University of California, Irvine 4403 Natural Sciences 1 Irvine California 92697 USA
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Bubwoong Kang
- Department of Chemistry University of California, Irvine 4403 Natural Sciences 1 Irvine California 92697 USA
| | - Vy M. Dong
- Department of Chemistry University of California, Irvine 4403 Natural Sciences 1 Irvine California 92697 USA
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23
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24
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Huang PH, Tseng CH, Lin CY, Lee CW, Yen FL. Preparation, characterizations and anti-pollutant activity of 7,3',4'-trihydroxyisoflavone nanoparticles in particulate matter-induced HaCaT keratinocytes. Int J Nanomedicine 2018; 13:3279-3293. [PMID: 29910615 PMCID: PMC5987860 DOI: 10.2147/ijn.s153323] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background 7,3',4'-Trihydroxyisoflavone (734THI), a secondary metabolite derived from daidzein in soybean, possesses several biological activities, including antioxidant, skin whitening and anti-atopic dermatitis properties, but the poor aqueous solubility of 734THI has limited its application in medicine and cosmetic industry. Methods The aim of the present study was to improve the physicochemical properties of 734THI using planetary ball mill preparation under a solvent-free process to improve its solubility and anti-pollutant activity. Results 734THI nanoparticle powder (734THIN) was successfully prepared by the planetary ball mill technique using polyvinylpyrrolidone K30 as the excipient. 734THIN effectively increased the aqueous solubility and cellular uptake of 734THI by improving its physicochemical properties, including particle size reduction, crystalline-amorphous transformation and intermolecular hydrogen bonding with polyvinylpyrrolidone K30. In addition, 734THIN inhibited the overexpression of COX-2 and MMP-9 by downregulating MAPK pathway signaling in particulate matter-exposed HaCaT keratinocytes, while raw 734THI in PBS with low aqueous solubility did not show any anti-inflammatory or antiaging activity. Conclusion 734THIN may be used as an additive in anti-pollutant skin care products for preventing particulate matter-induced inflammation and aging in skin.
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Affiliation(s)
| | | | - Chia-Yu Lin
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung
| | - Chiang-Wen Lee
- Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology, Kweishan, Taoyuan.,Department of Nursing, Division of Basic Medical Sciences.,Chronic Diseases and Health Promotion Research Center, Chang Gung University of Science and Technology, Chia-Yi
| | - Feng-Lin Yen
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung.,Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan, Republic of China
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25
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Wen R, Lv H, Jiang Y, Tu P. Anti-inflammatory isoflavones and isoflavanones from the roots of Pongamia pinnata (L.) Pierre. Bioorg Med Chem Lett 2018; 28:1050-1055. [DOI: 10.1016/j.bmcl.2018.02.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/30/2018] [Accepted: 02/13/2018] [Indexed: 11/17/2022]
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26
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Lee DH, Kim MJ, Song EJ, Kim JH, Ahn J, Nam YD, Jang YJ, Ha TY, Jung CH. Nutrikinetic study of genistein metabolites in ovariectomized mice. PLoS One 2017; 12:e0186320. [PMID: 29059247 PMCID: PMC5653299 DOI: 10.1371/journal.pone.0186320] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 09/28/2017] [Indexed: 11/18/2022] Open
Abstract
This study was designed to evaluate the effect of ovariectomy on nutrikinetics of genistein metabolites. To characterize the time-dependent changes in genistein metabolite concentrations, we identified 13 genistein metabolites using ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry. The nutrikinetics of the individual metabolites at different time points were analyzed. Nutrikinetic analysis showed that genistein, genistein 4'-glucuronide, genistein 7-glucuronide, 3-hydroxygenistein, and hippuric acid showed relatively high bioavailability in the sham group compared to that in the ovariectomy group, suggesting that ovariectomy likely results in lower genistein bioavailability. These results may be related to alteration of gut microbiota by ovariectomy. The relative abundance of species of the Parabacteroides, Dorea, and Butyricimonas genera, and Desulfovibrionaceae_unclassified, Lachnospiraceae_unclassified, and Rikenellaceae_unclassified families increased in the ovariectomy group while the relative abundance of 523_7_unclassified and Y52_unclassified_unclassified increased in the sham group. These results suggest that gut microbiota alteration by ovariectomy may affect genistein bioavailability.
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Affiliation(s)
- Da-Hye Lee
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Republic of Korea
- Department of Food Biotechnology, Korea University of Science and Technology, Seongnam, Republic of Korea
| | - Min Jung Kim
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Republic of Korea
| | - Eun-Ji Song
- Department of Food Biotechnology, Korea University of Science and Technology, Seongnam, Republic of Korea
- Research Group of Gut Microbiome, Korea Food Research Institute, Seongnam, Republic of Korea
| | - Jin Hee Kim
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Republic of Korea
| | - Jiyun Ahn
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Republic of Korea
- Department of Food Biotechnology, Korea University of Science and Technology, Seongnam, Republic of Korea
| | - Young-Do Nam
- Department of Food Biotechnology, Korea University of Science and Technology, Seongnam, Republic of Korea
- Research Group of Gut Microbiome, Korea Food Research Institute, Seongnam, Republic of Korea
| | - Young-Jin Jang
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Republic of Korea
| | - Tae-Youl Ha
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Republic of Korea
- Department of Food Biotechnology, Korea University of Science and Technology, Seongnam, Republic of Korea
| | - Chang Hwa Jung
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Republic of Korea
- Department of Food Biotechnology, Korea University of Science and Technology, Seongnam, Republic of Korea
- * E-mail:
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27
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Ganganna B, Lu TN, Hwang J, Hwang J, Mandava S, Jang Y, Samala M, Park H, Lee J. First Syntheses of (±)-Butesuperins A and B. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bogonda Ganganna
- College of Pharmacy; Kangwon National University; Chuncheon 24341 Republic of Korea
| | - Thien Nhan Lu
- College of Pharmacy; Kangwon National University; Chuncheon 24341 Republic of Korea
| | - Jiho Hwang
- College of Pharmacy; Kangwon National University; Chuncheon 24341 Republic of Korea
| | - Jungjoong Hwang
- College of Pharmacy; Kangwon National University; Chuncheon 24341 Republic of Korea
| | - Suresh Mandava
- College of Pharmacy; Kangwon National University; Chuncheon 24341 Republic of Korea
| | - Yoonchang Jang
- College of Pharmacy; Kangwon National University; Chuncheon 24341 Republic of Korea
| | - Mallesham Samala
- College of Pharmacy; Kangwon National University; Chuncheon 24341 Republic of Korea
| | - Haeil Park
- College of Pharmacy; Kangwon National University; Chuncheon 24341 Republic of Korea
| | - Jongkook Lee
- College of Pharmacy; Kangwon National University; Chuncheon 24341 Republic of Korea
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Liu C, Liu J, Hao Y, Gu Y, Yang Z, Li H, Li R. 6,7,3′,4′-Tetrahydroxyisoflavone improves the survival of whole-body-irradiated mice via restoration of hematopoietic function. Int J Radiat Biol 2017; 93:793-802. [DOI: 10.1080/09553002.2017.1321808] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Cong Liu
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Jing Liu
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Yuhui Hao
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Ying Gu
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Zhangyou Yang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Hong Li
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Rong Li
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
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29
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Lu TM, Ko HH, Ng LT, Hsieh YP. Free-Radical-Scavenging, Antityrosinase, and Cellular Melanogenesis Inhibitory Activities of Synthetic Isoflavones. Chem Biodivers 2016; 12:963-79. [PMID: 26080742 DOI: 10.1002/cbdv.201400208] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Indexed: 11/11/2022]
Abstract
In this study, we examined the potential of synthetic isoflavones for application in cosmeceuticals. Twenty-five isoflavones were synthesized and their capacities of free-radical-scavenging and mushroom tyrosinase inhibition, as well as their impact on cell viability of B16F10 murine melanoma cells and HaCaT human keratinocytes were evaluated. Isoflavones that showed significant mushroom tyrosinase inhibitory activities were further studied on reduction of cellular melanin formation and antityrosinase activities in B16F10 melanocytes in vitro. Among the isoflavones tested, 6-hydroxydaidzein (2) was the strongest scavenger of both ABTS(.+) and DPPH(.) radicals with SC50 values of 11.3 ± 0.3 and 9.4 ± 0.1 μM, respectively. Texasin (20) exhibited the most potent inhibition of mushroom tyrosinase (IC50 14.9 ± 4.5 μM), whereas retusin (17) showed the most efficient inhibition both of cellular melanin formation and antityrosinase activity in B16F10 melanocytes, respectively. In summary, both retusin (17) and texasin (20) exhibited potent free-radical-scavenging capacities as well as efficient inhibition of cellular melanogenesis, suggesting that they are valuable hit compounds with potential for advanced cosmeceutical development.
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Affiliation(s)
- Tzy-Ming Lu
- Department of Pharmacy, Tajen University, No. 20 Wei-Xin Rd., Yanpu, Pingtung 907, Taiwan, ROC, (phone: +886-8-7624002 ext. 2727; fax: +886-8-7625308). ,
| | - Horng-Huey Ko
- Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung 807, Taiwan, ROC
| | - Lean-Teik Ng
- Department of Agricultural Chemistry, National Taiwan University, Taipei 106, Taiwan, ROC
| | - Yen-Pin Hsieh
- Department of Pharmacy, Fooyin University Hospital, Pingtung 917, Taiwan, ROC
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30
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Feng KP, Chen RD, Li JH, Tao XY, Liu JM, Zhang M, Dai JG. Flavonoids from the cultured cells of Glycyrrhiza uralensis. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2015; 18:253-259. [PMID: 26465203 DOI: 10.1080/10286020.2015.1074573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Two new flavonoids (1 and 2), along with 14 known ones (3-16), were isolated from the cultured cells of Glycyrrhiza uralensis. Most of them were prenylated flavonoids. Their structures were elucidated on the basis of spectroscopic data analysis. All compounds showed non-cytotoxicity against five human tumor cell lines. The results suggest that plant cultured cells can yield the secondary metabolites that have not been found in parent plant.
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Affiliation(s)
- Ke-Ping Feng
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Beijing 100050 , China
| | - Ri-Dao Chen
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Beijing 100050 , China
- b Key Laboratory of Biosynthesis of Natural Products of National Health and Family Planning Commission , Beijing 100050 , China
- c Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study , Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100050 , China
| | - Jian-Hua Li
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Beijing 100050 , China
| | - Xiao-Yu Tao
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Beijing 100050 , China
| | - Ji-Mei Liu
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Beijing 100050 , China
| | - Min Zhang
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Beijing 100050 , China
| | - Jun-Gui Dai
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Beijing 100050 , China
- b Key Laboratory of Biosynthesis of Natural Products of National Health and Family Planning Commission , Beijing 100050 , China
- c Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study , Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100050 , China
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Cerezo AB, Winterbone MS, Moyle CWA, Needs PW, Kroon PA. Molecular structure-function relationship of dietary polyphenols for inhibiting VEGF-induced VEGFR-2 activity. Mol Nutr Food Res 2015; 59:2119-31. [PMID: 26250940 PMCID: PMC4973850 DOI: 10.1002/mnfr.201500407] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 07/20/2015] [Accepted: 07/23/2015] [Indexed: 02/05/2023]
Abstract
Scope We recently reported potent inhibition of VEGF signalling by two flavanols at sub‐micromolar concentrations, mediated by direct binding of the flavanols to VEGF. The aim of this study was to quantify the inhibitory potency and binding affinity of a wide range of dietary polyphenols and determine the structural requirements for VEGF inhibition. Methods and results The concentration of polyphenol required to cause 50% inhibition (IC50) of VEGF‐dependent VEGFR‐2 activation in HUVECS was determined after pretreating VEGF with polyphenols at various concentations. Binding affinities and binding sites on VEGF were predicted using in‐silico modelling. Ellagic acid and 15 flavonoids had IC50 values ≤10 μM while 28 other polyhenols were weak/non‐inhibitors. Structural features associated with potent inhibition included 3‐galloylation, C‐ring C2=C3, total OH, B‐ring catechol, C‐ring 3‐OH of flavonoids. Potency was not associated with polyphenol hydrophobicity. There was a strong correlation between potency of inhibition and binding affinities, and all polyphenols were predicted to bind to a region on VEGF involved in VEGFR‐2 binding. Conclusion Specific polyphenols bind directly to a discrete region of VEGF and inhibit VEGF signalling, and this potentially explains the associations between consumption of these polyphenols and CVD risk.
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Affiliation(s)
- Ana B Cerezo
- Food & Health Programme, Institute of Food Research, Norwich Research Park, Norwich, UK.,Nutrición y Bromatología, Facultad de Farmacia, Universidad de Sevilla, Sevilla, Spain
| | - Mark S Winterbone
- Food & Health Programme, Institute of Food Research, Norwich Research Park, Norwich, UK
| | - Christina W A Moyle
- Food & Health Programme, Institute of Food Research, Norwich Research Park, Norwich, UK
| | - Paul W Needs
- Food & Health Programme, Institute of Food Research, Norwich Research Park, Norwich, UK
| | - Paul A Kroon
- Food & Health Programme, Institute of Food Research, Norwich Research Park, Norwich, UK
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Castellano G, Torrens F. Quantitative Structure-Antioxidant Activity Models of Isoflavonoids: A Theoretical Study. Int J Mol Sci 2015; 16:12891-906. [PMID: 26062128 PMCID: PMC4490477 DOI: 10.3390/ijms160612891] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 06/01/2015] [Accepted: 06/03/2015] [Indexed: 11/25/2022] Open
Abstract
Seventeen isoflavonoids from isoflavone, isoflavanone and isoflavan classes are selected from Dalbergia parviflora. The ChEMBL database is representative from these molecules, most of which result highly drug-like. Binary rules appear risky for the selection of compounds with high antioxidant capacity in complementary xanthine/xanthine oxidase, ORAC, and DPPH model assays. Isoflavonoid structure-activity analysis shows the most important properties (log P, log D, pKa, QED, PSA, NH + OH ≈ HBD, N + O ≈ HBA). Some descriptors (PSA, HBD) are detected as more important than others (size measure Mw, HBA). Linear and nonlinear models of antioxidant potency are obtained. Weak nonlinear relationships appear between log P, etc. and antioxidant activity. The different capacity trends for the three complementary assays are explained. Isoflavonoids potency depends on the chemical form that determines their solubility. Results from isoflavonoids analysis will be useful for activity prediction of new sets of flavones and to design drugs with antioxidant capacity, which will prove beneficial for health with implications for antiageing therapy.
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Affiliation(s)
- Gloria Castellano
- Departamento de Ciencias Experimentales y Matemáticas, Facultad de Veterinaria y Ciencias Experimentales, Universidad Católica de Valencia San Vicente Mártir, Guillem de Castro-94, E 46001 València, Spain.
| | - Francisco Torrens
- Institut Universitari de Ciència Molecular, Universitat de València, Edifici d'Instituts de Paterna, P. O. Box 22085, E 46071 València, Spain.
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Frasinyuk MS, Bondarenko SP, Khilya VP, Liu C, Watt DS, Sviripa VM. Synthesis and tautomerization of hydroxylated isoflavones bearing heterocyclic hemi-aminals. Org Biomol Chem 2015; 13:1053-67. [PMID: 25412895 PMCID: PMC5571763 DOI: 10.1039/c4ob02137a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The aminomethylation of hydroxylated isoflavones with 2-aminoethanol, 3-amino-1-propanol, 4-amino-1-butanol, and 5-amino-1-pentanol in the presence of excess formaldehyde led principally to 9-(2-hydroalkyl)-9,10-dihydro-4H,8H-chromeno[8,7-e][1,3]-oxazin-4-ones 4 and/or the tautomeric 7-hydroxy-8-(1,3-oxazepan-3-ylmethyl)-4H-chromen-4-ones 5. The ratio of these tautomers was dependent on solvent polarity, electronic effects of aryl substituents in the isoflavone and the structure of the amino alcohol. NMR studies confirmed the interconversion of tautomeric forms.
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Affiliation(s)
- Mykhaylo S Frasinyuk
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY 40536-0509, USA.
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Analysis of Bovine Serum Albumin Ligands from Puerariae flosUsing Ultrafiltration Combined with HPLC-MS. J CHEM-NY 2015. [DOI: 10.1155/2015/648361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Rapid screening techniques for identification of active compounds from natural products are important not only for clarification of the therapeutic material basis, but also for supplying suitable chemical markers for quality control. In the present study, ultrafiltration combined with high performance liquid chromatography-mass spectrometry (HPLC-MS) was developed and conducted to screen and identify bovine serum albumin (BSA) bound ligands fromPuerariae flos. Fundamental parameters affecting the screening like incubation time, BSA concentration, pH, and temperature were studied and optimized. Under the optimum conditions, nine active compounds were identified by UV and MS data. The results indicated that this method was able to screen and identify BSA bound ligands form natural products without the need of preparative isolation techniques. Moreover, the method has more effective with easier operation procedures.
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Hong HJ, Lee JI. A Versatile Synthesis of O-Desmethylangolensin Analogues from Methoxy-Substituted Benzoic Acids. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2014. [DOI: 10.5012/jkcs.2014.58.6.569] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Zhang C, Wang YM, Zhao FC, Chen LM, Zhang QW, Gao HM, Wang ZM. Phenolic Metabolites from the Stems and Leaves ofSophora flavescens. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201400013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Liu J, Yang Z, Luo S, Hao Y, Ren J, Su Y, Wang W, Li R. Facile Method for the Large-Scale Synthesis of 6,7,4′-Trihydroxyisoflavanone. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.886331] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Engineering class I cytochrome P450 by gene fusion with NADPH-dependent reductase and S. avermitilis host development for daidzein biotransformation. Appl Microbiol Biotechnol 2014; 98:8191-200. [DOI: 10.1007/s00253-014-5706-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 03/10/2014] [Accepted: 03/17/2014] [Indexed: 11/25/2022]
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Chang TS. Isolation, bioactivity, and production of ortho-hydroxydaidzein and ortho-hydroxygenistein. Int J Mol Sci 2014; 15:5699-716. [PMID: 24705463 PMCID: PMC4013590 DOI: 10.3390/ijms15045699] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 03/18/2014] [Accepted: 03/27/2014] [Indexed: 12/18/2022] Open
Abstract
Daidzein and genistein are two major components of soy isoflavones. They exist abundantly in plants and possess multiple bioactivities. In contrast, ortho-hydroxydaidzein (OHD) and ortho-hydroxygenistein (OHG), including 6-hydroxydaidzein (6-OHD), 8-hydroxydaidzein (8-OHD), 3'-hydroxydaidzein (3'-OHD), 6-hydroxygenistein (6-OHG), 8-hydroxygenistein (8-OHG), and 3'-hydroxygenistein (3'-OHG), are rarely found in plants. Instead, they are usually isolated from fermented soybean foods or microbial fermentation broth feeding with soybean meal. Accordingly, the bioactivity of OHD and OHG has been investigated less compared to that of soy isoflavones. Recently, OHD and OHG were produced by genetically engineering microorganisms through gene cloning of cytochrome P450 (CYP) enzyme systems. This success opens up bioactivity investigation and industrial applications of OHD and OHG in the future. This article reviews isolation of OHD and OHG from non-synthetic sources and production of the compounds by genetically modified microorganisms. Several bioactivities, such as anticancer and antimelanogenesis-related activities, of OHD and OHG, are also discussed.
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Affiliation(s)
- Te-Sheng Chang
- Department of Biological Science and Technology, National University of Tainan, 33 Sec. 2 Su-Lin St., Tainan 702, Taiwan.
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Kim M, Han J. Chiroptical study and absolute configuration of (-)-O-DMA produced from daidzein metabolism. Chirality 2014; 26:434-7. [PMID: 24519947 DOI: 10.1002/chir.22295] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 12/11/2013] [Indexed: 11/07/2022]
Abstract
To elucidate the hitherto unknown absolute configuration of (-)-O-desmethylangolensin ((-)-O-DMA), an intestinal bacterial metabolite produced from daidzein, chiroptical study, including specific optical rotation and electronic circular dichroism (ECD), of (R)-O-DMA was carried out by Time-Dependent Density Functional Theory (TD-DFT) calculations. Intramolecular hydrogen bonding between 2'-OH and carbonyl oxygen at 1-C of O-DMA was a governing factor for O-DMA to form the stable conformations. Total energy values of four possible conformers were calculated in the framework of DFT using the B3LYP exchange correlation functional at the 6-31++G basis set level. The theoretical specific rotation and ECD spectra of all conformers in ethanol were obtained by TD-DFT calculation using B3LYP functional at the 6-311++G basis set level, and compared to the experimental data. Chiroptical properties of (R)-O-DMA showed a good agreement with the biological (-)-O-DMA. Therefore, the stereospecific biosynthetic pathway of (-)-O-DMA was proposed as daidzein → (R)-dihydrodaidzein ↔ (S)-dihydrodaizein → (R)-O-DMA.
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Affiliation(s)
- Mihyang Kim
- Metalloenzyme Research Group and Department of Systems Biotechnology, Chung-Ang University, Anseong, Republic of Korea
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Design, synthesis and inhibitory activities of naringenin derivatives on human colon cancer cells. Bioorg Med Chem Lett 2012. [PMID: 23177257 DOI: 10.1016/j.bmcl.2012.10.130] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Based on the previous result, several naringenin derivatives modified at position 7 with bulky substituents were designed and synthesized, and their inhibitory effects on HCT116 human colon cancer cells were tested using a clonogenic assay. The half maximal inhibitory concentrations (IC(50)) of five naringenin derivatives ranged between 1.20 μM and 20.01 μM which are much better than naringenin used as a control. In addition, new structural modification at C-4 of flavanone results in improving both the anti-cancer effect and anti-oxidative effect. In vitro cyclin dependent kinase 2 (CDK2) binding assay was carried out based on the previous results. To elucidate the possible interaction between naringenin derivatives and CDK2, in silico docking study was performed. This result demonstrates the rationale for the different inhibitory activities of the naringenin derivatives. These findings could be used for designing cancer therapeutic or preventive flavanone-derived agents.
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Yang RY, Lan YS, Huang ZJ, Shao CL, Liang H, Chen ZF, Li J. Isoflavonoids from Sophora tonkinensis. Chem Nat Compd 2012. [DOI: 10.1007/s10600-012-0345-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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44
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Yang S, Zhu SF, Zhang CM, Song S, Yu YB, Li S, Zhou QL. Enantioselective iridium-catalyzed hydrogenation of α-arylcinnamic acids and synthesis of (S)-equol. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.03.118] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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45
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Ley JP, Dessoy M, Paetz S, Blings M, Hoffmann-Lücke P, Reichelt KV, Krammer GE, Pienkny S, Brandt W, Wessjohann L. Identification of enterodiol as a masker for caffeine bitterness by using a pharmacophore model based on structural analogues of homoeriodictyol. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:6303-6311. [PMID: 22670770 DOI: 10.1021/jf301335z] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Starting from previous structure-activity relationship studies of taste modifiers based on homoeriodictyol, dihydrochalcones, deoxybenzoins, and trans-3-hydroxyflavones as obvious analogues were investigated for their masking effect against caffeine. The most active compounds of the newly investigated taste modifiers were phloretin, the related dihydrochalcones 3-methoxy-2',4,4'-trihydroxydihydrochalcone and 2',4-dihydroxy-3-methoxydihydrochalcone, and the deoxybenzoin 2-(4-hydroxy-3-methoxyphenyl)-1-(4-hydroxyphenyl)ethanone. Starting with the whole set of compounds showing activity >22%, a (Q)SAR pharmacophore model for maskers of caffeine bitterness was calculated to explain the structural requirements. After docking of the pharmacophore into a structural model of the broadly tuned bitter receptor hTAS2R10 and docking of enterolactone and enterodiol as only very weakly related structures, it was possible to predict qualitatively their modulating activity. Enterodiol (25 mg L(-1)) reduced the bitterness of the 500 mg L(-1) caffeine solution by about 30%, whereas enterolactone showed no masking but a slight bitter-enhancing effect.
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Affiliation(s)
- Jakob P Ley
- Symrise AG , Flavor & Nutrition, Research & Technology, P.O. Box 1253, D-37601 Holzminden, Germany.
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46
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Liu L, Ma Y, Chen X, Xiong X, Shi S. Screening and identification of BSA bound ligands from Puerariae lobata flower by BSA functionalized Fe3O4 magnetic nanoparticles coupled with HPLC–MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 887-888:55-60. [DOI: 10.1016/j.jchromb.2012.01.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 01/10/2012] [Accepted: 01/14/2012] [Indexed: 11/16/2022]
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47
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Development of a new class of aromatase inhibitors: design, synthesis and inhibitory activity of 3-phenylchroman-4-one (isoflavanone) derivatives. Bioorg Med Chem 2012; 20:2603-13. [PMID: 22444875 DOI: 10.1016/j.bmc.2012.02.042] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2011] [Revised: 02/11/2012] [Accepted: 02/17/2012] [Indexed: 01/23/2023]
Abstract
Aromatase (CYP19) catalyzes the aromatization reaction of androgen substrates to estrogens, the last and rate-limiting step in estrogen biosynthesis. Inhibition of aromatase is a new and promising approach to treat hormone-dependent breast cancer. We present here the design and development of isoflavanone derivatives as potential aromatase inhibitors. Structural modifications were performed on the A and B rings of isoflavanones via microwave-assisted, gold-catalyzed annulation reactions of hydroxyaldehydes and alkynes. The in vitro aromatase inhibition of these compounds was determined by fluorescence-based assays utilizing recombinant human aromatase (baculovirus/insect cell-expressed). The compounds 3-(4-phenoxyphenyl)chroman-4-one (1h), 6-methoxy-3-phenylchroman-4-one (2a) and 3-(pyridin-3-yl)chroman-4-one (3b) exhibited potent inhibitory effects against aromatase with IC(50) values of 2.4 μM, 0.26 μM and 5.8 μM, respectively. Docking simulations were employed to investigate crucial enzyme/inhibitor interactions such as hydrophobic interactions, hydrogen bonding and heme iron coordination. This report provides useful information on aromatase inhibition and serves as a starting point for the development of new flavonoid aromatase inhibitors.
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Yanagisawa A, Taga M, Atsumi T, Nishimura K, Ando K, Taguchi T, Tsumuki H, Chujo I, Mohri SI. Process Development of the PDE4 Inhibitor K-34. Org Process Res Dev 2011. [DOI: 10.1021/op100291g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Arata Yanagisawa
- Chemical Process Research and Development Laboratories, Kyowa Hakko Kirin Co., Ltd., 1-1-53, Takasu-cho, Sakai-ku, Sakai, Osaka 590-8554, Japan
| | - Masashi Taga
- Chemical Process Research and Development Laboratories, Kyowa Hakko Kirin Co., Ltd., 1-1-53, Takasu-cho, Sakai-ku, Sakai, Osaka 590-8554, Japan
| | - Toshiyuki Atsumi
- Chemical Process Research and Development Laboratories, Kyowa Hakko Kirin Co., Ltd., 1-1-53, Takasu-cho, Sakai-ku, Sakai, Osaka 590-8554, Japan
| | - Koichiro Nishimura
- Chemical Process Research and Development Laboratories, Kyowa Hakko Kirin Co., Ltd., 1-1-53, Takasu-cho, Sakai-ku, Sakai, Osaka 590-8554, Japan
| | - Kyoji Ando
- Chemical Process Research and Development Laboratories, Kyowa Hakko Kirin Co., Ltd., 1-1-53, Takasu-cho, Sakai-ku, Sakai, Osaka 590-8554, Japan
| | - Tsuyoshi Taguchi
- Chemical Process Research and Development Laboratories, Kyowa Hakko Kirin Co., Ltd., 1-1-53, Takasu-cho, Sakai-ku, Sakai, Osaka 590-8554, Japan
| | - Hiroshi Tsumuki
- Chemical Process Research and Development Laboratories, Kyowa Hakko Kirin Co., Ltd., 1-1-53, Takasu-cho, Sakai-ku, Sakai, Osaka 590-8554, Japan
| | - Iwao Chujo
- Chemical Process Research and Development Laboratories, Kyowa Hakko Kirin Co., Ltd., 1-1-53, Takasu-cho, Sakai-ku, Sakai, Osaka 590-8554, Japan
| | - Shin-ichiro Mohri
- Chemical Process Research and Development Laboratories, Kyowa Hakko Kirin Co., Ltd., 1-1-53, Takasu-cho, Sakai-ku, Sakai, Osaka 590-8554, Japan
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50
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Liang XL, Wang XL, Li Z, Hao QH, Wang SY. Improved in vitro assays of superoxide anion and 1,1-diphenyl- 2-picrylhydrazyl (DPPH) radical-scavenging activity of isoflavones and isoflavone metabolites. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:11548-11552. [PMID: 20973535 DOI: 10.1021/jf102372t] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Free radical-scavenging activity of isoflavones and some isoflavone metabolites have been described previously, but the results are inconsistent. The objective of the present study was to find out the pivotal factors that influence an accurate detection of both superoxide anion and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging activity. We here showed for the first time that organic solvents, including methanol, ethanol and acetone, were of strong superoxide radical-scavenging activity at concentrations down to 0.1% (v/v), however, no such activity was observed with acetonitrile at concentrations up to 2.0% (v/v). In DPPH assay, we found that the DPPH radical-scavenging ratio increased together with the extended reaction time. Based on our findings, improved in vitro assays for the detection of radical-scavenging activity of both isoflavones (daidzein and genistein) and isoflavone metabolites, including dihydrodaidzein (DHD), dihydrogenistein (DHG), and O-desmethylangolensin (O-Dma), were established.
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Affiliation(s)
- Xiao-Lin Liang
- College of Life Sciences, Agricultural University of Hebei, Baoding, 071001, China
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