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Mai NT, Anh BTM, Xuan VT, Lan HTT, Yen DTH, Tai BH, Nhiem NX, Van Kiem P. Achyranbidens A-C: three new compounds from Achyranthes bidentata Blume. Nat Prod Res 2024; 38:2363-2372. [PMID: 36722288 DOI: 10.1080/14786419.2023.2174534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/30/2022] [Accepted: 01/22/2023] [Indexed: 02/02/2023]
Abstract
Phytochemical study on the roots of Achyranthes bidentata Blume led to the isolation of sixteen compounds including three new ones (1-3). Their chemical structures were determined as oleanolic acid 28-O-β-D-glucopyranoside-3-O-[β-D-glucopyranosyl-(1→3)-β-D-galactopyranoside) (1), methyl (8Z,11Z)-5,6,7-trihydroxytetradeca-8,11-dienoate (2), methyl (6E,11Z)-5,8,9-trihydroxytetradeca-6,11-dienoate (3), fulgidic acid (4), (9E,11E)-13-oxooctadeca-9,11-dienoic acid (5), (9Z,11E,15Z)-13-hydroxyoctadeca-9,11,15-trienoic acid (6), oleanolic acid 28-O-β-D-glucopyranoside-3-O-α-L-rhamnopyranosyl-(1→4)-β-D-glucuronopyranoside (7), oleanolic acid 28-O-β-D-glucopyranoside-3-O-β-D-glucopyranosyl-(1→2)-[α-L-rhamnopyranosyl-(1→3)]-β-D-glucuronopyranoside (8), oleanolic acid 3-O-β-D-glucopyranosyl-(1→2)-[α-L-rhamnopyranosyl-(1→3)]-β-D-glucuronopyranoside (9), oleanolic acid 3-O-α-L-rhamnopyranosyl-(1→3)-β-D-glucuronopyranoside (10), blumenol C glucoside (11), citroside A (12), 6S,9S-roseoside (13), ginsenoside Rg1 (14), 20-hydroxyecdysone (15), and benzyl α-L-rhamnopyranosyl-(1→6)]-β-D-glucopyranoside (16) by spectroscopic analysis. Compounds 1, 7 and 11-16 inhibited NO production in LPS-activated RAW264.7 cells with IC50 values in the range from 28.03 to 54.23 µM (positive control, L-NMMA: IC50 = 35.52 µM). Compounds 14 and 15 showed anti α-glucosidase activity with IC50 values of 176.24 and 156.92 µM, respectively, compared with the positive control, acarbose, IC50 = 160.99 μM.
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Affiliation(s)
- Nguyen Thi Mai
- Faculty of Basic Sciences, University of Transport and Communications, Hanoi, Vietnam
| | - Bui Thi Mai Anh
- Faculty of Basic Sciences, University of Transport and Communications, Hanoi, Vietnam
| | - Vu Thi Xuan
- Faculty of Basic Sciences, University of Transport and Communications, Hanoi, Vietnam
| | - Hoang Thi Tuyet Lan
- Faculty of Basic Sciences, University of Transport and Communications, Hanoi, Vietnam
| | - Duong Thi Hai Yen
- Department of Structural Research, Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Bui Huu Tai
- Department of Structural Research, Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Faculty of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nguyen Xuan Nhiem
- Department of Structural Research, Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Faculty of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Phan Van Kiem
- Department of Structural Research, Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Faculty of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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2
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Ashour A, Sherif AE, El-Sayed SM, Kim JY, Jang DS, Anvari A, Farahat AA, Ibrahim SRM, Mohamed GA, Ainousah BE, Aljohani RF, Al-Hejaili RR, Khoja RH, Hassan AHE, Zaki AA. Tetraenone A: A New β-Ionone Derivative from Tetraena aegyptia. Metabolites 2023; 13:1202. [PMID: 38132884 PMCID: PMC10744760 DOI: 10.3390/metabo13121202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 12/23/2023] Open
Abstract
In this study, the chemical investigation of Tetraena aegyptia (Zygophyllaceae) led to the identification of a new megastigmene derivative, tetraenone A ((2S, 5R, 6R, 7E)-2-hydroxy-5,6-dihydro-β-ionone) (1), along with (3S, 5R, 6S, 7E)-3-hydroxy-5,6-epoxy-5,6-dihydro-β-ionone- (2), 3,4-dihydroxy-cinnamyl alcohol-4-glucoside (3), 3β,19α-dihydroxy-ursan-28-oic acid (4), quinovic acid (5), p-coumaric acid (6), and ferulic acid (7), for the first time. The chemical structures of 1-7 were confirmed by analysis of their 1D and 2D NMR and HRESIMS spectra and by their comparison with the relevant literature. The absolute configurations of 1 and 2 were assigned based on NOESY interactions and ECD spectra. Conformational analysis showed that 1 existed exclusively in one of the two theoretically possible chair conformers with a predominant s-trans configuration for the 3-oxobut-1-en-1-yl group with the ring, while the half-chair conformer had a pseudo-axial hydroxy group that was predominant over the other half-chair conformation. Boat conformations were not among the most stable conformations, and the s-trans isomerism was in favor of s-cis configuration. In silico investigation revealed that 1 and 2 had more favorable binding interactions with Mpro rather than with TMPRSS2. Accordingly, molecular dynamic simulations were performed on the complexes of compounds 1 and 2 with Mpro to explore the stability of their interaction with the target protein structure. Compounds 1 and 2 might offer a possible starting point for developing covalent inhibitors of Mpro of SARS-CoV-2.
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Affiliation(s)
- Ahmed Ashour
- Department of Pharmacognosy, Faculty of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt;
| | - Asmaa E. Sherif
- Department of Pharmacognosy, Faculty of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt;
| | - Selwan M. El-Sayed
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt;
| | - Ji-Young Kim
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul 02447, Republic of Korea; (J.-Y.K.); (D.S.J.)
| | - Dae Sik Jang
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul 02447, Republic of Korea; (J.-Y.K.); (D.S.J.)
| | - Abtin Anvari
- Master of Pharmaceutical Sciences Program, California Northstate University, 9700 W Taron Dr., Elk Grove, CA 95757, USA; (A.A.); (A.A.F.)
| | - Abdelbasset A. Farahat
- Master of Pharmaceutical Sciences Program, California Northstate University, 9700 W Taron Dr., Elk Grove, CA 95757, USA; (A.A.); (A.A.F.)
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Sabrin R. M. Ibrahim
- Preparatory Year Program, Department of Chemistry, Batterjee Medical College, Jeddah 21442, Saudi Arabia;
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Gamal A. Mohamed
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Bayan E. Ainousah
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia;
| | - Raghad F. Aljohani
- College of Pharmacy, Taibah University, Medina 42353, Saudi Arabia; (R.F.A.); (R.R.A.-H.); (R.H.K.)
| | - Razan R. Al-Hejaili
- College of Pharmacy, Taibah University, Medina 42353, Saudi Arabia; (R.F.A.); (R.R.A.-H.); (R.H.K.)
| | - Rahaf H. Khoja
- College of Pharmacy, Taibah University, Medina 42353, Saudi Arabia; (R.F.A.); (R.R.A.-H.); (R.H.K.)
| | - Ahmed H. E. Hassan
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt;
| | - Ahmed A. Zaki
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt;
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA
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Thi Thu Ha T, Thi Cuc N, Tai BH, Trung KH, Dang Khanh T, Van Kiem P. Pelliolatifolias A-D, Four Undescribed Compounds from Pellionia latifolia Boerl. and Their Nitric Oxide Production Inhibitory Activity. Chem Biodivers 2023; 20:e202300731. [PMID: 37344361 DOI: 10.1002/cbdv.202300731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 06/23/2023]
Abstract
Four undescribed compounds (1-4) named pelliolatifolias A-D together with seven known compounds trans-clovamide (5), N-trans-caffeoyl-4-hydroxyphenylalanine methyl ester (6), N-trans-caffeoyl-3,4-dihydroxyphenylalanine methyl ester (7), luteolin 4'-O-β-D-glucopyrannoside (8), cis-syringin (9), trans-syringin (10), and citroside A (11) have been isolated from the methanol extract of the Pellionia latifolia leaves. Their chemical structures were elucidated based on extensive analyses of HR-ESI-MS, 1D and 2D NMR, and CD spectra. Compounds 1-7, 9 and 10 showed moderate inhibition of NO production in LPS-activated RAW264.7 cells with their IC50 values ranging from 39.27 to 75.42 μM, compared to that of the positive control compound, dexamethasone, IC50 value of 14.20 μM.
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Affiliation(s)
- Tran Thi Thu Ha
- Institute of Forestry and Sustainable Development (IFS), Thai Nguyen University of Agriculture and Forestry, Thai, Nguyen City (TUAF), Vietnam
| | - Nguyen Thi Cuc
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
| | - Bui Huu Tai
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Khuat Huu Trung
- Agricultural Genetic Institute, Pham Van Dong, Bac Tu Liem, Vietnam
| | - Tran Dang Khanh
- Agricultural Genetic Institute, Pham Van Dong, Bac Tu Liem, Vietnam
| | - Phan Van Kiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
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Taiwo OM, Olaoluwa OO, Aiyelaagbe OO, Schmidt TJ. Chemical Constituents from Ficus sagittifolia Stem Bark and Their Antimicrobial Activities. PLANTS (BASEL, SWITZERLAND) 2023; 12:2801. [PMID: 37570957 PMCID: PMC10420693 DOI: 10.3390/plants12152801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/07/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023]
Abstract
The phytochemical investigation of the ethylacetate fraction of an ethanolic extract obtained from the stem bark of Ficus sagittifolia (Moraceae) led to the isolation of four flavonoids: (2R)-eriodictyol (1), 2'- hydroxygenistein (2), erycibenin A (3), and genistein (4); a dihydrobenzofuran: moracin P (5); a coumarin: peucedanol (6); and an apocarotenoid terpenoid: dihydrophaseic acid (7). These were identified via 1D and 2D nuclear magnetic resonance spectroscopy (NMR) and ultra-high-resolution liquid chromatography-quadrupole time-of-flight mass spectroscopy (UHPLC-QTOF MS). Moracin P (5) is being reported for the first time in the genus Ficus, while the others are known compounds (1-4 and 6-7) isolated previously from the genus but being reported for the first time from the species F. sagittifolia. Their antimicrobial activity against various pathogens (five bacteria: Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Staphylococcus aureus, and Salmonella typhi; two fungi: Aspergillus niger and Candida albicans) was tested. The mixture of genistein and moracin P (4+5) exhibited strong activity against K. pneumoniae (MIC < 0.0039 mg/mL), whereas dihydrophaseic acid (7) was the most active against P. aeruginosa and A. niger (MIC = 0.0078 and <0.0039 mg/mL, respectively). These compounds might be considered potential antimicrobial agents with the potential to be starting points for the development of antimicrobial drugs.
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Affiliation(s)
- Olayombo M. Taiwo
- Department of Chemistry, University of Ibadan, Ibadan 200284, Nigeria; (O.O.O.); (O.O.A.)
- University of Münster, Institute of Pharmaceutical Biology and Phytochemistry (IPBP), PharmaCampus, Corrensstrasse 48, D-48149 Münster, Germany
| | - Olaoluwa O. Olaoluwa
- Department of Chemistry, University of Ibadan, Ibadan 200284, Nigeria; (O.O.O.); (O.O.A.)
| | - Olapeju O. Aiyelaagbe
- Department of Chemistry, University of Ibadan, Ibadan 200284, Nigeria; (O.O.O.); (O.O.A.)
| | - Thomas J. Schmidt
- University of Münster, Institute of Pharmaceutical Biology and Phytochemistry (IPBP), PharmaCampus, Corrensstrasse 48, D-48149 Münster, Germany
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5
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Ma T, Sun Y, Lin J, Wang J, Zhang X, Yan T, Jia Y. Chemical constituents and mechanisms from Hemerocallis citrina Baroni with anti-neuroinflammatory activity. J Funct Foods 2023. [DOI: 10.1016/j.jff.2023.105427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
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Zhang SS, Hou YF, Liu SJ, Guo S, Ho CT, Bai NS. Exploring Active Ingredients, Beneficial Effects, and Potential Mechanism of Allium tenuissimum L. Flower for Treating T2DM Mice Based on Network Pharmacology and Gut Microbiota. Nutrients 2022; 14:nu14193980. [PMID: 36235633 PMCID: PMC9571170 DOI: 10.3390/nu14193980] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/16/2022] [Accepted: 09/22/2022] [Indexed: 11/16/2022] Open
Abstract
Forty compounds were isolated and characterized from A. tenuissimum flower. Among them, twelve flavonoids showed higher α−glucosidase inhibition activities in vitro than acarbose, especially kaempferol. The molecular docking results showed that the binding of kaempferol to α−glucosidase (GAA) could reduce the hydrolysis of substrates by GAA and reduce the glucose produced by hydrolysis, thus exhibiting α−glucosidase inhibition activities. The in vivo experiment results showed that flavonoids−rich A. tenuissimum flower could decrease blood glucose and reduce lipid accumulation. The protein expression levels of RAC−alpha serine/threonine−protein kinase (AKT1), peroxisome proliferator activated receptor gamma (PPARG), and prostaglandin G/H synthase 2 (PTGS2) in liver tissue were increased. In addition, the Firmicutes/Bacteroidetes (F/B) ratio was increased, the level of gut probiotics Bifidobacterium was increased, and the levels of Enterobacteriaceae and Staphylococcus were decreased. The carbohydrate metabolism, lipid metabolism, and other pathways related to type 2 diabetes mellitus were activated. This study indicating flavonoids−rich A. tenuissimum flower could improve glycolipid metabolic disorders and inflammation in diabetic mice by modulating the protein expression and gut microbiota.
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Affiliation(s)
- Shan-Shan Zhang
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Northwest University, Xi’an 710069, China
| | - Yu-Fei Hou
- Department of Food Science, College of Food Science and Technology, Northwest University, Xi’an 710069, China
| | - Shao-Jing Liu
- Department of Medicinal Chemistry, College of Pharmacy, Xi’an Medical University, Xi’an 710021, China
| | - Sen Guo
- Department of Food Science, College of Food Science and Technology, Northwest University, Xi’an 710069, China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, NJ 08901, USA
| | - Nai-Sheng Bai
- Department of Food Science, College of Food Science and Technology, Northwest University, Xi’an 710069, China
- Correspondence: ; Tel.: +029-88305208
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Study on the anti-hyperuricemic bioactivity and chemical components of Sterculiae lychnophorae Semen. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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8
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Phenolic and sesquiterpene derivatives from Fissistigma retusum. BIOCHEM SYST ECOL 2022. [DOI: 10.1016/j.bse.2022.104417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Ha MT, Lee TH, Kim CS, Prajapati R, Kim JA, Choi JS, Min BS. PTP1B and α-glucosidase inhibitory activities of the chemical constituents from Hedera rhombea fruits: Kinetic analysis and molecular docking simulation. PHYTOCHEMISTRY 2022; 197:113100. [PMID: 35144153 DOI: 10.1016/j.phytochem.2022.113100] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
In this study, we present the first investigation of Hedera rhombea Bean fruit, which led to the isolation of six undescribed compounds including two megastigmane glucosides, two rare 1,4-dioxane neolignanes, and two quinic acid derivatives, together with 26 known compounds. Their structures and absolute configurations were elucidated by extensive analysis of NMR spectroscopic data, HRMS, and ECD calculations. This is the first report on the isolation of methyl 3-O-caffeoyl-5-O-p-coumaroylquinate from a natural source. Among the isolated compounds, falcarindiol and caffeoyltryptophan showed significant PTP1B inhibition with IC50 values of 7.32 and 16.99 μM, respectively, compared to those of the positive controls [sodium orthovanadate (IC50 = 17.96 μM) and ursolic acid (IC50 = 4.53 μM)]. These two compounds along with several other compounds displayed significant α-glucosidase inhibitions with IC50 values ranging from 12.88 to 91.89 μM, stronger than that of the positive control (acarbose, IC50 = 298.07 μM). Enzyme kinetic analysis indicated that caffeoyltryptophan and falcarindiol displayed competitive and mixed-type PTP1B inhibition, respectively, whereas the α-glucosidase inhibition type was mixed-type for caffeoyltryptophan and uncompetitive (rarely reported for a-glucosidase inhibitors) for falcarindiol. In addition, molecular docking results showed that these active compounds exhibited good binding affinities toward both PTP1B and α-glucosidase with negative binding energies. The results of the present study demonstrate that these active compounds might be beneficial in the treatment of type 2 diabetes.
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Affiliation(s)
- Manh Tuan Ha
- College of Pharmacy, Drug Research and Development Center, Daegu Catholic University, Gyeongbuk, 38430, Republic of Korea
| | - Tae Hyun Lee
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea; Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Chung Sub Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea; Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Ritu Prajapati
- Department of Food and Life Science, Pukyong National University, Busan, 48513, Republic of Korea
| | - Jeong Ah Kim
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Jae Sue Choi
- Department of Food and Life Science, Pukyong National University, Busan, 48513, Republic of Korea
| | - Byung Sun Min
- College of Pharmacy, Drug Research and Development Center, Daegu Catholic University, Gyeongbuk, 38430, Republic of Korea.
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Huang YP, Wang YS, Liu BW, Song Z, Liang XS, Teng Y, Zhang J, Yin ZQ, Pan K. Dammarane-type saponins with proprotein convertase subtilisin/kexin type 9 inhibitory activity from Gynostemma pentaphyllum. PHYTOCHEMISTRY 2022; 194:113005. [PMID: 34798409 DOI: 10.1016/j.phytochem.2021.113005] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 10/14/2021] [Accepted: 11/04/2021] [Indexed: 06/13/2023]
Abstract
Seven undescribed dammarane-type saponins, gypenosides LXXXI-LXXXVII, together with four known compounds, were isolated from the whole herb of Gynostemma pentaphyllum. The chemical structures of these undescribed compounds were elucidated on the basis of physical and spectroscopic analysis and comparison with literature data. All the isolates were evaluated for their proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitory activities in HepG2 cells. Among them, gypenosides LXXXII-LXXXVII, gynosaponin II, IV and VI suppressed the expression of PCSK9 in LPDS-induced HepG2 cells at 20 μM; gypenosides LXXXII, LXXXV and LXXXVII showed inhibitory activities against PCSK9 at 10 μM; notably, gypenoside LXXXII still exhibited inhibitory activity against PCSK9 at 5 μM.
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Affiliation(s)
- Ya-Ping Huang
- Department of TCMs Pharmaceuticals & Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China; Cardiology Department, Nanjing Lishui District Hospital of Traditional Chinese Medicine, Nanjing, 211200, People's Republic of China; Laboratory of Translational Medicine, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, People's Republic of China
| | - Yun-Shan Wang
- Department of TCMs Pharmaceuticals & Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China; Laboratory of Translational Medicine, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, People's Republic of China
| | - Bi-Wen Liu
- Cardiology Department, Nanjing Lishui District Hospital of Traditional Chinese Medicine, Nanjing, 211200, People's Republic of China
| | - Zhe Song
- Instrumental Analysis Center of CPU, China Pharmaceutical University, Ministry of Education, Nanjing, 210009, People's Republic of China
| | - Xiao-Shuang Liang
- Department of TCMs Pharmaceuticals & Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China; Laboratory of Translational Medicine, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, People's Republic of China
| | - Yuan Teng
- Department of TCMs Pharmaceuticals & Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China; Laboratory of Translational Medicine, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, People's Republic of China
| | - Jian Zhang
- Laboratory of Translational Medicine, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, People's Republic of China.
| | - Zhi-Qi Yin
- Department of TCMs Pharmaceuticals & Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China.
| | - Ke Pan
- Department of TCMs Pharmaceuticals & Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China.
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11
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Yi P, Li B, Zafar S, Ali S, Sheng WB, Mao Y, Zhou F, Chen WM, Tang YR, Peng CY, Choudhary MI, Rahman AU, Wang W. Three new constituents from the Tujia ethnomedicine Swertia punicea Hemsl. Nat Prod Res 2021; 37:1444-1455. [PMID: 34886720 DOI: 10.1080/14786419.2021.2012669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Three new constituents: 1,5R-dihydroxy-3,8S-dimethoxy-5,6,7,8-tetrahydroxanthone (1), (3S,4R,16S,17R)-3,16,23-trihydroxyoleana-11,13(18)-dien-28-aldehyde-3-O-β-D-glucopyranoside (2), and new natural product (S)-gentiandiol (3), along with 41 known compounds were isolated from Tujia ethnomedicine Shuihuanglian, namely, the whole plant of Swertia punicea. Structures of all these compounds were established through extensive spectroscopic techniques, namely 1D, 2D-NMR spectroscopy, HRESIMS analysis, and the absolute configuration of the new compounds was discerned by circular dichroism (CD) spectroscopy. Antioxidative effects of these compounds were evaluated by using the DPPH radical scavenging method, compounds 7, 9 and 14 showed antioxidant activities with IC50 values of 68.9, 50.8 and 48.2 μM, respectively.
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Key Words
- (3S,4R,16S,17R)-3,16,23-trihydroxyoleana-11,13(18)-dien-28-aldehyde-3-O-β-D-glucopyranoside
- (S)-gentiandiol
- 1,5R-dihydroxy-3,8S-dimethoxy-5,6,7,8-tetrahydroxanthone
- Shuihuanglian
- Swertia punicea
- antioxidant
- gentianaceae
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Affiliation(s)
- Pan Yi
- TCM and Ethnomedicine Innovation & Development International Laboratory, Academician Atta-ur-Rahman Belt and Road Traditional Medicine Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China.,College of Traditional Chinese Medicine, Hunan Food and Drug Vocational College, Changsha, China
| | - Bin Li
- TCM and Ethnomedicine Innovation & Development International Laboratory, Academician Atta-ur-Rahman Belt and Road Traditional Medicine Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Salman Zafar
- TCM and Ethnomedicine Innovation & Development International Laboratory, Academician Atta-ur-Rahman Belt and Road Traditional Medicine Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China.,Institute of Chemical Sciences, University of Peshawar, Peshawar, Pakistan
| | - Sajjad Ali
- TCM and Ethnomedicine Innovation & Development International Laboratory, Academician Atta-ur-Rahman Belt and Road Traditional Medicine Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China.,Department of Chemistry, Karakoram International University, Gilgit, Pakistan
| | - Wen-Bing Sheng
- TCM and Ethnomedicine Innovation & Development International Laboratory, Academician Atta-ur-Rahman Belt and Road Traditional Medicine Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Yu Mao
- TCM and Ethnomedicine Innovation & Development International Laboratory, Academician Atta-ur-Rahman Belt and Road Traditional Medicine Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China.,College of Traditional Chinese Medicine, Hunan Food and Drug Vocational College, Changsha, China
| | - Fang Zhou
- TCM and Ethnomedicine Innovation & Development International Laboratory, Academician Atta-ur-Rahman Belt and Road Traditional Medicine Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China.,The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Wen-Ming Chen
- The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Yan-Ran Tang
- TCM and Ethnomedicine Innovation & Development International Laboratory, Academician Atta-ur-Rahman Belt and Road Traditional Medicine Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China.,College of Traditional Chinese Medicine, Hunan Food and Drug Vocational College, Changsha, China
| | - Cai-Yun Peng
- TCM and Ethnomedicine Innovation & Development International Laboratory, Academician Atta-ur-Rahman Belt and Road Traditional Medicine Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - M Iqbal Choudhary
- TCM and Ethnomedicine Innovation & Development International Laboratory, Academician Atta-ur-Rahman Belt and Road Traditional Medicine Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China.,H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Atta-Ur- Rahman
- TCM and Ethnomedicine Innovation & Development International Laboratory, Academician Atta-ur-Rahman Belt and Road Traditional Medicine Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China.,H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Wei Wang
- TCM and Ethnomedicine Innovation & Development International Laboratory, Academician Atta-ur-Rahman Belt and Road Traditional Medicine Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
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12
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Zhang Y, Chen Q, Huang Y, Zhao R, Sun J, Yuan X, Xu H, Liu H, Wu Y. Gene excavation and expression analysis of CYP and UGT related to the post modifying stage of gypenoside biosynthesis in Gynostemma pentaphyllum (Thunb.) Makino by comprehensive analysis of RNA and proteome sequencing. PLoS One 2021; 16:e0260027. [PMID: 34874937 PMCID: PMC8651138 DOI: 10.1371/journal.pone.0260027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 11/01/2021] [Indexed: 12/13/2022] Open
Abstract
Previous studies have revealed that gypenosides produced from Gynostemma pentaphyllum (Thunb.) Makino are mainly dammarane-type triterpenoid saponins with diverse structures and important biological activities, but the mechanism of diversity for gypenoside biosynthesis is still unclear. In this study, a combination of isobaric tags for relative and absolute quantification (iTRAQ) proteome analysis and RNA sequencing transcriptome analysis was performed to identify the proteins and genes related to gypenoside biosynthesis. A total of 3925 proteins were identified by proteomic sequencing, of which 2537 were quantified. Seventeen cytochrome P450 (CYP) and 11 uridine 5’-diphospho-glucuronosyltransferase (UDP-glucuronosyltransferase, UGT) candidate genes involved in the side chain synthesis and modification of gypenosides were found. Seven putative CYPs (CYP71B19, CYP77A3, CYP86A7, CYP86A8, CYP89A2, CYP90A1, CYP94A1) and five putative UGTs (UGT73B4, UGT76B1, UGT74F2, UGT91C1 and UGT91A1) were selected as candidate structural modifiers of triterpenoid saponins, which were cloned for gene expression analysis. Comprehensive analysis of RNA sequencing and proteome sequencing showed that some CYPs and UGTs were found at both the transcription and translation levels. In this study, an expression analysis of 7 CYPs and 5 UGTs that contributed to gypenoside biosynthesis and distribution in G. pentaphyllum was performed, providing consistent results that will inspire more future research on vital genes/proteins involved in gypenoside biosynthesis.
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Affiliation(s)
- Yangmei Zhang
- Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi province, China
- Department of Nursing, Sichuan Nursing Vocational College, Sichuan province, China
| | - Qicong Chen
- Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi province, China
- School of Biomedical Science and Engineering, South China University of Technology, Guangzhou, Guangdong province, China
| | - Yuanheng Huang
- Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi province, China
| | - Ruiqiang Zhao
- Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi province, China
| | - Jian Sun
- Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi province, China
| | - Xidong Yuan
- Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi province, China
| | - Huiming Xu
- Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi province, China
| | - Huiyu Liu
- Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi province, China
| | - Yaosheng Wu
- Key Laboratory of Biological Molecular Medicine Research of Guangxi Higher Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi province, China
- * E-mail:
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13
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Two new terpenes from the aerial parts of Clematis chinensis Osbeck. Nat Prod Res 2021; 36:3825-3832. [PMID: 33615918 DOI: 10.1080/14786419.2021.1889541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Two new acyclic sesquiterpenoids (1-2) and fourteen known monocyclic monoterpenoids (3-16) were isolated from the aerial parts of Clematis chinensis Osbeck. All compounds were isolated from C. chinensis for the first time. The structures of all compounds were characterized by spectroscopic methods (1 D, 2 D NMR and HRESIMS). In-vitro cytotoxic activity against two human cancer cell lines (MGC-803 and Ishikawa) of all the compounds were evaluated by CCK-8 assay.
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14
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Hao ZY, Liu YF, Cao YG, Liang D, Luo H, Zhang CL, Wang Y, Chen RY, Yu DQ. Sesquiterpenoids of diverse types from the rhizomes of Acorus calamus. RSC Adv 2021. [DOI: 10.1039/d1ra00350j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Six new and fourteen known sesquiterpenoids of diverse types were isolated from the rhizomes of Acorus calamus.
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Affiliation(s)
- Zhi-You Hao
- School of Pharmacy
- Henan University of Chinese Medicine
- Zhengzhou 450046
- P. R. China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
| | - Yan-Fei Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Yan-Gang Cao
- School of Pharmacy
- Henan University of Chinese Medicine
- Zhengzhou 450046
- P. R. China
| | - Dong Liang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Huan Luo
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Chun-Lei Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Yan Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Ruo-Yun Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - De-Quan Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
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15
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Yang H, Gan C, Guo Y, Qu L, Ma S, Ren Y, Wang X, Wang L, Huang J, Wang J. Two novel compounds from green walnut husks ( Juglans mandshurica Maxim.). Nat Prod Res 2020; 36:3389-3395. [PMID: 33342293 DOI: 10.1080/14786419.2020.1860976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Phytochemical investigation on the ethanol extract of green walnut husks (Juglans mandshurica Maxim.) led to the isolation of two previously unknown compounds, including a macrolide compound (13S)-8-oxo-(9E, 11E)-8-oxo-octadeca-9,11-dien-13-olide (1) and a diarylheptanoid compound 1-(3'-methoxy-4'-hydroxyphenyl)-7-(3″,4″-dimethoxyphenyl)heptan-3-one (2), together with 19 known compounds. The structures of these 21 compounds were elucidated by extensive analyses of NMR and HR-MS data, and the basis of spectroscopic analysis.
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Affiliation(s)
- Hong Yang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, PR China
| | - Chunli Gan
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, PR China
| | - Yaping Guo
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, PR China
| | - Liyuan Qu
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, PR China
| | - Shuang Ma
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, PR China
| | - Yanbin Ren
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, PR China
| | - Xingwen Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, PR China
| | - Libo Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, PR China
| | - Jian Huang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, PR China
| | - Jinhui Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, PR China
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16
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Tan JY, Liu Y, Cheng YG, Sun YP, Li XM, Guan W, Pan J, Yang BY, Kuang HX. Seven new glycosides from the leaves of Datura metel L. Nat Prod Res 2020; 36:295-304. [DOI: 10.1080/14786419.2020.1779713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Jin-Yan Tan
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yan Liu
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yan-Gang Cheng
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yan-Ping Sun
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xiao-Mao Li
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Wei Guan
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Juan Pan
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Bing-You Yang
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Hai-Xue Kuang
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, China
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17
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Arai MA, Morita K, Kawano H, Makita Y, Hashimoto M, Suganami A, Tamura Y, Sadhu SK, Ahmed F, Ishibashi M. Target protein-oriented isolation of Hes1 dimer inhibitors using protein based methods. Sci Rep 2020; 10:1381. [PMID: 31992824 PMCID: PMC6987128 DOI: 10.1038/s41598-020-58451-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 01/15/2020] [Indexed: 12/14/2022] Open
Abstract
Natural products isolation using protein based methods is an attractive for obtaining bioactive compounds. To discover neural stem cell (NSC) differentiation activators, we isolated eight inhibitors of Hes1 dimer formation from Psidium guajava using the Hes1-Hes1 interaction fluorescent plate assay and one inhibitor from Terminalia chebula using the Hes1-immobilized beads method. Of the isolated compounds, gallic acid (8) and 4-O-(4”-O-galloyl-α-L-rhamnopyranosyl)ellagic acid (11) showed potent Hes1 dimer formation inhibitory activity, with IC50 values of 10.3 and 2.53 μM, respectively. Compound 11 accelerated the differentiation activity of C17.2 NSC cells dose dependently, increasing the number of neurons with a 125% increase (5 μM) compared to the control.
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Affiliation(s)
- Midori A Arai
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan.
| | - Kaori Morita
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Haruka Kawano
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Yuna Makita
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Manami Hashimoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Akiko Suganami
- Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Yutaka Tamura
- Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Samir K Sadhu
- Pharmacy Discipline, Khulna University, Khulna, 9208, Bangladesh
| | - Firoj Ahmed
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Masami Ishibashi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan.
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18
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Pan SP, Pirker T, Kunert O, Kretschmer N, Hummelbrunner S, Latkolik SL, Rappai J, Dirsch VM, Bochkov V, Bauer R. C13 Megastigmane Derivatives From Epipremnum pinnatum: β-Damascenone Inhibits the Expression of Pro-Inflammatory Cytokines and Leukocyte Adhesion Molecules as Well as NF-κB Signaling. Front Pharmacol 2019; 10:1351. [PMID: 31849641 PMCID: PMC6892967 DOI: 10.3389/fphar.2019.01351] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 10/25/2019] [Indexed: 12/05/2022] Open
Abstract
In order to identify active constituents and to gain some information regarding their mode of action, extracts from leaves of Epipremnum pinnatum were tested for their ability to inhibit inflammatory gene expression in endothelial- and monocyte-like cells (HUVECtert and THP-1, respectively). Bioactivity-guided fractionation using expression of PTGS2 (COX-2) mRNA as a readout resulted in the isolation of two C13 megastigmane glycosides, gusanlungionoside C (1) and citroside A (3), and the phenylalcohol glycoside phenylmethyl-2-O-(6-O-rhamnosyl)-ß-D-galactopyranoside (2). Further analysis identified six additional megastigmane glycosides and the aglycones β-damascenone (10), megastigmatrienone (11), 3-hydroxy-β-damascenone (12), and 3-oxo-7,8-dihydro-α-ionol (13). Pharmacological analysis demonstrated that 10 inhibits LPS-stimulated induction of mRNAs encoding for proinflammatory cytokines and leukocyte adhesion molecules, such as TNF-α, IL-1β, IL-8, COX-2, E-selectin, ICAM-1, and VCAM-1 in HUVECtert and THP-1 cells. 10 inhibited induction of inflammatory genes in HUVECtert and THP-1 cells treated with different agonists, such as TNF-α, IL-1β, and LPS. In addition to mRNA, also the upregulation of inflammatory proteins was inhibited by 10 as demonstrated by immune assays for cell surface E-selectin and secreted TNF-α. Finally, using a luciferase reporter construct, it was shown, that 10 inhibits NF-κB-dependent transcription. Therefore, we hypothesize that inhibition of NF-κB by β-damascenone (10) may represent one of the mechanisms underlying the in vitro anti-inflammatory activity of Epipremnum pinnatum extracts.
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Affiliation(s)
- San-Po Pan
- Department of Pharmacognosy, Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria
| | - Teresa Pirker
- Department of Pharmacognosy, Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria
| | - Olaf Kunert
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria
| | - Nadine Kretschmer
- Department of Pharmacognosy, Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria
| | - Scarlet Hummelbrunner
- Department of Pharmacognosy, Molecular Targets, University of Vienna, Vienna, Austria
| | - Simone L Latkolik
- Department of Pharmacognosy, Molecular Targets, University of Vienna, Vienna, Austria
| | - Julia Rappai
- Department of Pharmacognosy, Molecular Targets, University of Vienna, Vienna, Austria
| | - Verena M Dirsch
- Department of Pharmacognosy, Molecular Targets, University of Vienna, Vienna, Austria
| | - Valery Bochkov
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria
| | - Rudolf Bauer
- Department of Pharmacognosy, Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria
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19
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Li HX, Kang S, Yang SY, Kim YH, Li W. Chemical constituents from Dendropanax morbiferus H. Lév. Stems and leaves and their chemotaxonomic significance. BIOCHEM SYST ECOL 2019. [DOI: 10.1016/j.bse.2019.103936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Identification of anti-osteoclastogenic compounds from Cleistocalyx operculatus flower buds and their effects on RANKL-induced osteoclastogenesis. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.05.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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21
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Li F, Zhang J, Lin M, Su X, Li C, Wang H, Li B, Chen R, Kang J. Anti-inflammatory terpenes from Schefflera rubriflora C. J. Tseng & G. Hoo with their TNF-α and IL-6 inhibitory activities. PHYTOCHEMISTRY 2019; 163:23-32. [PMID: 30986687 DOI: 10.1016/j.phytochem.2019.03.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 03/19/2019] [Accepted: 03/22/2019] [Indexed: 06/09/2023]
Abstract
The 95% ethanol extract and its EtOAc and n-BuOH fractions obtained from the leaves and twigs of Schefflera rubriflora C. J. Tseng & G. Hoo showed significant inhibitory activities (33.6%, 35.7% and 40.6%, respectively) against croton oil-induced ear inflammation in mice. Bioactivity-guided isolation and separation gave eight previously undescribed terpenes or terpene glycosides. Structural elucidation was based on UV, IR, and NMR spectroscopy, MS, experimental and calculated ECD data, and Mosher's method. To identify anti-inflammatory components from the extract, all the compounds were evaluated for tumor necrosis factor-α (TNF-α) and interleukine-6 (IL-6) inhibitory activities. Four undescribed compounds inhibited mRNA expression of TNF-α and IL-6 with IC50 values of 15.3-52.4 μM.
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Affiliation(s)
- Fenghua Li
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing 100050, China.
| | - Jian Zhang
- Department of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, China.
| | - Mingbao Lin
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing 100050, China.
| | - Xianming Su
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing 100050, China.
| | - Changkang Li
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing 100050, China.
| | - Hongqing Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing 100050, China.
| | - Baoming Li
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing 100050, China.
| | - Ruoyun Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing 100050, China.
| | - Jie Kang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing 100050, China.
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Lv XJ, Li Y, Ma SG, Qu J, Liu YB, Li YH, Zhang D, Li L, Yu SS. Bioactive megastigmane glucosides and monoterpenes from Lyonia ovalifolia. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2019; 21:559-572. [PMID: 30585522 DOI: 10.1080/10286020.2018.1509313] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 07/29/2018] [Accepted: 08/04/2018] [Indexed: 06/09/2023]
Abstract
Three new megastigmane glucosides (1-3) and two new monoterpenes (4-5), together with 14 related known compounds (6-19) were isolated from the twigs and leaves of Lyonia ovalifolia. The structures of the new compounds were determined by extensive MS, NMR, CD experiments and chemical methods. Compounds 2, 6, and 18 displayed potent antiviral activity against Coxsackie B3, with IC50 values between 6.4 and 14.6 µM. Additionally, compounds 6, 10, and 11 exhibited noteworthy anti-inflammatory activities, with inhibition rates ranging from 54.55% to 83.33% under the concentration of 10-5 M.
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Affiliation(s)
- Xiao-Jing Lv
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Yong Li
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Shuang-Gang Ma
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Jing Qu
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Yun-Bao Liu
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Yu-Huan Li
- c Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Dan Zhang
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Li Li
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Shi-Shan Yu
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
- b Department of Pharmacy , Guangxi University of Chinese Medicine , Nanning 530001 , China
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Guo R, Liu Y, Pan J, Guan W, Yang BY, Kuang HX. A new sesquiterpenoid with cytotoxic and anti-inflammatory activity from the leaves of Datura metel L. Nat Prod Res 2019; 35:607-613. [PMID: 30919660 DOI: 10.1080/14786419.2019.1590715] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A new sesquiterpenoid glycoside, consisting of one vetispirane-type, dmetelisproside A (1), together with two known megastigmane sesquiterpenoids, citroside A (2) and staphylionoside D (3) were isolated from the leaves of Datura metel L. The structures were determined by analysis of their MS and NMR data as well as by comparison with literature values. All isolates were evaluated for cytotoxicity toward SGC-7901, Hepg2, HeLa, MCF-7, and MDA-MB-231 cancer cell lines, and anti-inflammatory activity against nitric oxide (NO) in RAW 264.7 cells in vitro. Compounds 1 and 2 exhibited pronounced cytotoxicity against SGC-7901 and HeLa cells with IC50 values in the range of 21.43 to 29.51 μm. All three compounds displayed potential effects against NO production with IC50 values of 31.10, 34.25, and 44.31 μm, respectively. Thus, these isolated compounds in the leaves of Datura metel L were subjected to bioactivity substances for future studies on medicinal application.
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Affiliation(s)
- Rui Guo
- Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, Shanxi University of Chinese Medicine, Jinzhong, China.,Hi-Tech Park, HKUST Shenzhen Research Institute, Nanshan, Shenzhen, China
| | - Yan Liu
- Key Laboratory of Chinese Materia Medica Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Juan Pan
- Key Laboratory of Chinese Materia Medica Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Wei Guan
- Key Laboratory of Chinese Materia Medica Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Bing-You Yang
- Key Laboratory of Chinese Materia Medica Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Hai-Xue Kuang
- Key Laboratory of Chinese Materia Medica Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, China
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Yang BY, Yin X, Liu Y, Sun Y, Guan W, Zhou YY, Kuang HX. Terpenes and lignans from the roots of Solanum melongena L. Nat Prod Res 2019; 34:359-368. [DOI: 10.1080/14786419.2018.1533828] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Bing-You Yang
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, P. R. China
| | - Xin Yin
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, P. R. China
| | - Yan Liu
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, P. R. China
| | - Yan Sun
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, P. R. China
| | - Wei Guan
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, P. R. China
| | - Yuan-Yuan Zhou
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, P. R. China
| | - Hai-Xue Kuang
- Key Laboratory of Chinese Materia Medica, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin, P. R. China
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Schwindl S, Kraus B, Heilmann J. Phytochemical study of Juglans regia L. leaves. PHYTOCHEMISTRY 2017; 144:58-70. [PMID: 28888783 DOI: 10.1016/j.phytochem.2017.08.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 08/16/2017] [Accepted: 08/20/2017] [Indexed: 06/07/2023]
Abstract
A methanolic extract of Juglans regia L. leaves was fractioned by various chromatographic techniques yielding a total of 40 metabolites belonging to megastigmane, tetralone, phenylpropanoid, neolignane and juglone glycosides. Ten unknown megastigmane glucoside derivatives (juglanionosides A-K, 1-10) and six unknown tetralone glucoside derivatives (juglanosides J-O, 11-16) together with 24 known compounds - among them 16 described for the first time in Juglans - were isolated. As characteristic structural feature, the previously undescribed compounds showed acylation of the sugar units with sinapic, ferulic, coumaric, benzoic or salicylic acid. Their chemical structures were elucidated on the basis of 1D and 2D NMR techniques, HRESIMS as well as CD spectroscopy. Absolute stereochemistry was revealed by mild alkaline hydrolysis and comparison of CD and polarimetric data to literature values.
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Affiliation(s)
- Sebastian Schwindl
- Institute of Pharmaceutical Biology, Universitätsstr. 31, Regensburg, D-93053, Germany
| | - Birgit Kraus
- Institute of Pharmaceutical Biology, Universitätsstr. 31, Regensburg, D-93053, Germany
| | - Jörg Heilmann
- Institute of Pharmaceutical Biology, Universitätsstr. 31, Regensburg, D-93053, Germany.
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Yan J, Shi X, Donkor PO, Zhu H, Gao X, Ding L, Qiu F. Nine pairs of megastigmane enantiomers from the leaves of Eucommia ulmoides Oliver. J Nat Med 2017. [PMID: 28634927 DOI: 10.1007/s11418-017-1102-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Nine pairs of megastigmane enantiomers (1a/1b-9a/9b), comprising two new compounds (6S,9R)-blumenol C (7b), (6S,9S)-blumenol C (8b), two pairs of enantiomers (+)-(6R)-eucomegastigmane A (1a), (-)-(6S)-eucomegastigmane A (1b), (+)-(3S,4S)-eucomegastigmane B (5a), (-)-(3R,4R)-eucomegastigmane B (5b) isolated by chiral resolution firstly, and twelve known compounds, were isolated from the leaves of Eucommia ulmoides Oliver. Their structures were elucidated based on extensive spectroscopic analysis. Absolute configurations of the megastigmane enantiomers were assigned by comparing experimental ECD and OR with calculated ECD and OR. Docking-based virtual screening of all compounds showed that megastigmane enantiomers have weak intermolecular interactions with the binding site residues of angiotensin-converting enzyme (ACE) and angiotensin II type 1 receptor (AT1R).
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Affiliation(s)
- Jiankun Yan
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, People's Republic of China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, #312 Anshanxi Road, Nankai District, Tianjin, 300193, People's Republic of China
- Department of Natural Products Chemistry, School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Xuliu Shi
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, People's Republic of China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, #312 Anshanxi Road, Nankai District, Tianjin, 300193, People's Republic of China
| | - Paul Owusu Donkor
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, People's Republic of China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, #312 Anshanxi Road, Nankai District, Tianjin, 300193, People's Republic of China
| | - Huajie Zhu
- College of Pharmacy, Hebei University, Baoding, 071002, People's Republic of China
| | - Xiumei Gao
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, #312 Anshanxi Road, Nankai District, Tianjin, 300193, People's Republic of China
| | - Liqin Ding
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, #312 Anshanxi Road, Nankai District, Tianjin, 300193, People's Republic of China.
| | - Feng Qiu
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, People's Republic of China.
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, #312 Anshanxi Road, Nankai District, Tianjin, 300193, People's Republic of China.
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Hou YZ, Chen KK, Deng XL, Fu ZL, Chen DF, Wang Q. Anti-complementary constituents of Anchusa italica. Nat Prod Res 2017; 31:2572-2574. [DOI: 10.1080/14786419.2017.1320789] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Yu-zhen Hou
- Key Laboratory of Xinjiang Endemic Phytomedicine Resources Ministry of Education, Shihezi University College of Pharmacy, Shihezi, P. R. China
| | - Kui-kui Chen
- Key Laboratory of Xinjiang Endemic Phytomedicine Resources Ministry of Education, Shihezi University College of Pharmacy, Shihezi, P. R. China
| | - Xi-ling Deng
- Key Laboratory of Xinjiang Endemic Phytomedicine Resources Ministry of Education, Shihezi University College of Pharmacy, Shihezi, P. R. China
| | - Ze-long Fu
- Department of Pharmacognosy, School of Pharmacy, Fudan University, Shanghai, P. R. China
| | - Dao-feng Chen
- Department of Pharmacognosy, School of Pharmacy, Fudan University, Shanghai, P. R. China
| | - Qi Wang
- Key Laboratory of Xinjiang Endemic Phytomedicine Resources Ministry of Education, Shihezi University College of Pharmacy, Shihezi, P. R. China
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Elnaggar MS, Ebada SS, Ashour ML, Ebrahim W, Singab A, Lin W, Liu Z, Proksch P. Two new triterpenoids and a new naphthoquinone derivative isolated from a hard coral-derived fungus Scopulariopsis sp. Fitoterapia 2017; 116:126-130. [DOI: 10.1016/j.fitote.2016.12.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 11/29/2016] [Accepted: 12/01/2016] [Indexed: 11/28/2022]
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Transcriptome Sequencing of Gynostemma pentaphyllum to Identify Genes and Enzymes Involved in Triterpenoid Biosynthesis. Int J Genomics 2016; 2016:7840914. [PMID: 28097124 PMCID: PMC5206855 DOI: 10.1155/2016/7840914] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 09/29/2016] [Accepted: 11/07/2016] [Indexed: 01/13/2023] Open
Abstract
G. pentaphyllum (Gynostemma pentaphyllum), a creeping herbaceous perennial with many important medicinal properties, is widely distributed in Asia. Gypenosides (triterpenoid saponins), the main effective components of G. pentaphyllum, are well studied. FPS (farnesyl pyrophosphate synthase), SS (squalene synthase), and SE (squalene epoxidase) are the main enzymes involved in the synthesis of triterpenoid saponins. Considering the important medicinal functions of G. pentaphyllum, it is necessary to investigate the transcriptomic information of G. pentaphyllum to facilitate future studies of transcriptional regulation. After sequencing G. pentaphyllum, we obtained 50,654,708 unigenes. Next, we used RPKM (reads per kilobases per million reads) to calculate expression of the unigenes and we performed comparison of our data to that contained in five common databases to annotate different aspects of the unigenes. Finally, we noticed that FPS, SS, and SE showed differential expression of enzymes in DESeq. Leaves showed the highest expression of FPS, SS, and SE relative to the other two tissues. Our research provides transcriptomic information of G. pentaphyllum in its natural environment and we found consistency in unigene expression, enzymes expression (FPS, SS, and SE), and the distribution of gypenosides content in G. pentaphyllum. Our results will enable future related studies of G. pentaphyllum.
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Chang JD, Mantri N, Sun B, Jiang L, Chen P, Jiang B, Jiang Z, Zhang J, Shen J, Lu H, Liang Z. Effects of elevated CO2 and temperature on Gynostemma pentaphyllum physiology and bioactive compounds. JOURNAL OF PLANT PHYSIOLOGY 2016; 196-197:41-52. [PMID: 27054772 DOI: 10.1016/j.jplph.2016.02.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 02/21/2016] [Accepted: 02/23/2016] [Indexed: 05/20/2023]
Abstract
Recently, an important topic of research has been how climate change is seriously threatening the sustainability of agricultural production. However, there is surprisingly little experimental data regarding how elevated temperature and CO2 will affect the growth of medicinal plants and production of bioactive compounds. Here, we comprehensively analyzed the effects of elevated CO2 and temperature on the photosynthetic process, biomass, total sugars, antioxidant compounds, antioxidant capacity, and bioactive compounds of Gynostemma pentaphyllum. Two different CO2 concentrations [360 and 720μmolmol(-1)] were imposed on plants grown at two different temperature regimes of 23/18 and 28/23°C (day/night) for 60days. Results show that elevated CO2 and temperature significantly increase the biomass, particularly in proportion to inflorescence total dry weight. The chlorophyll content in leaves increased under the elevated temperature and CO2. Further, electron transport rate (ETR), photochemical quenching (qP), actual photochemical quantum yield (Yield), instantaneous photosynthetic rate (Photo), transpiration rate (Trmmol) and stomatal conductance (Cond) also increased to different degrees under elevated CO2 and temperature. Moreover, elevated CO2 increased the level of total sugars and gypenoside A, but decreased the total antioxidant capacity and main antioxidant compounds in different organs of G. pentaphyllum. Accumulation of total phenolics and flavonoids also decreased in leaves, stems, and inflorescences under elevated CO2 and temperature. Overall, our data indicate that the predicted increase in atmospheric temperature and CO2 could improve the biomass of G. pentaphyllum, but they would reduce its health-promoting properties.
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Affiliation(s)
- Jia-Dong Chang
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China; Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, Hangzhou 310018, China
| | - Nitin Mantri
- School of Applied Sciences, Health Innovations Research Institute, RMIT University, Melbourne 3000, Victoria, Australia
| | - Bin Sun
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Li Jiang
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Ping Chen
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Bo Jiang
- College of Biological and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Zhengdong Jiang
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jialei Zhang
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jiahao Shen
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Hongfei Lu
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China; Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, Hangzhou 310018, China.
| | - Zongsuo Liang
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China; Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, Hangzhou 310018, China.
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Norsesquiterpenoids and triterpenoids from strawberry cv. Falandi. Food Chem 2016; 203:67-72. [PMID: 26948590 DOI: 10.1016/j.foodchem.2016.02.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 02/02/2016] [Accepted: 02/04/2016] [Indexed: 12/25/2022]
Abstract
Falandi is a common strawberry (Fragaria × ananassa Duch.) cultivar in southern China. Further study of the chemical constituents in Falandi fruit led to the isolation of nine norsesquiterpenoids and three triterpenoids. Falandioside D (1) and falandins A (2) and B (3) were new norsesquiterpenoids, and the others excluding tormentic acid (11) were found in strawberry for the first time. Compounds 1 and 11 exhibited potent α-glucosidase inhibitory activity with the half maximal inhibitory concentration (IC50) values of 565.0 and 27.4 μM in comparison to acarbose (619.9 μM). Compounds 3, 7 (blumenol C glucoside), and 11 showed cytotoxicity against human nasopharyngeal carcinoma cell line CNE1 with the IC50 values of 57.6, 56.4, and 36.0 μM, respectively. Among new compounds, 1 showed 2,2'-azinobis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) radical cation scavenging capacity (IC50=36.2 μM). These results suggested that non-phenolic constituents were also involved in the antidiabetic, antitumour, and antioxidant effects of strawberry fruit.
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Zhang L, Tu ZC, Yuan T, Ma H, Niesen DB, Wang H, Seeram NP. New Gallotannin and other Phytochemicals from Sycamore Maple (Acer pseudoplatanus) Leaves. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501001143] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The maple (Acer) genus is a reported source of bioactive (poly)phenols, including gallotannins, but several of its members, such as the sycamore maple (A. pseudoplatanus). remain uninvestigated. Herein, thirty-nine compounds, including a new gallotannin, 1,2,3-tri- O-galloyl-6- O-( p-hydroxybenzoyl)-β-D-glucopyranoside (1), and thirty-eight (2-39) known compounds, consisting of four gallotannins, one ellagitannin, thirteen flavonoids, eight hydroxycinnamic acids, ten benzoic acid derivatives, and two sesquiterpenoids, were isolated from sycamore maple leaves. Their structures were determined based on NMR and mass spectral analyses. The isolates were evaluated for α-glucosidase inhibitory and antioxidant activities. Among the isolates, the gallotannins were the most potent α-glucosidase inhibitors with thirteen-fold more potent activity compared with the clinical drug, acarbose (IC50 = 16–31 vs. 218 μM). Similarly, the gallotannins showed the highest antioxidant activities, followed by the other phenolic sub-classes, while the sesquiterpenoids were inactive.
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Affiliation(s)
- Lu Zhang
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China
| | - Zong-Cai Tu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China
| | - Tao Yuan
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
- The Key Laboratory of Plant Resources and Chemistry of Arid Zone, State Key Laboratory of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
| | - Hang Ma
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Daniel B. Niesen
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Hui Wang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China
| | - Navindra P. Seeram
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
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Kim KH, Kang HR, Eom HJ, Kim CS, Choi SU, Lee KR. A new aliphatic alcohol and cytotoxic chemical constituents from Acorus gramineus rhizomes. Biosci Biotechnol Biochem 2015; 79:1402-5. [DOI: 10.1080/09168451.2015.1031079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Abstract
A new aliphatic alcohol, (2R,6R)-oct-7-ene-2,6-diol (1), and seven other known compounds (2-8) were isolated from Acorus gramineus rhizomes. The structure of 1 was elucidated by a combination of extensive spectroscopic analyses, including 2D NMR, HR-MS, and the modified Mosher’s method. Compounds 3-8 displayed consistent antiproliferative activities against the cell lines tested with IC50 values ranging from 7 to 48 μm.
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Affiliation(s)
- Ki Hyun Kim
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon, Korea
| | - Hee Rae Kang
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon, Korea
| | - Hee Jeong Eom
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon, Korea
| | - Chung Sub Kim
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon, Korea
| | - Sang Un Choi
- Korea Research Institute of Chemical Technology, Daejeon, Korea
| | - Kang Ro Lee
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon, Korea
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Thao NP, Luyen BTT, Tai BH, Cuong NM, Kim YC, Minh CV, Kim YH. Chemical constituents of Miliusa balansae leaves and inhibition of nitric oxide production in lipopolysaccharide-induced RAW 264.7 cells. Bioorg Med Chem Lett 2015; 25:3859-63. [PMID: 26238320 DOI: 10.1016/j.bmcl.2015.07.056] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 07/09/2015] [Accepted: 07/18/2015] [Indexed: 12/17/2022]
Abstract
Methanolic extract of Miliusa balansae Finet et Gagnep exerts an anti-inflammatory effect via inhibition of nitric oxide (NO) production in lipopolysaccharide (LPS)-stimulated murine RAW 264.7 macrophage cells. Three new megastigmane glycosides, milbasides A-C (1-3), together with fifteen known compounds (4-18), were isolated from the active fraction. Their chemical structures were elucidated using extensive spectroscopic analyses, including 1D and 2D NMR, HR ESI MS, and CD analysis, as well as comparison with previously reported data. Compounds 1-3, 11 and 14 (20.0 μM) showed potent inhibitory activities with inhibition values of 98.5 ± 1.6%, 90.9 ± 7.8%, 84.8 ± 3.5%, 91.5 ± 8.7%, and 91.8 ± 2.7%, respectively. Our results suggest that megastigmane glycosides from M. balansae leaves may be used to treat inflammatory diseases.
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Affiliation(s)
- Nguyen Phuong Thao
- College of Pharmacy, Chungnam National University, Daejeon 305-764, Republic of Korea; Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Bui Thi Thuy Luyen
- College of Pharmacy, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Bui Huu Tai
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Nguyen Manh Cuong
- Institute of Natural Products Chemistry (INPC), VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Youn Chul Kim
- College of Pharmacy, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Chau Van Minh
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Daejeon 305-764, Republic of Korea.
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Wang LJ, Xiong J, Liu ST, Pan LL, Yang GX, Hu JF. ent-Abietane-Type and Related Seco-/Nor-diterpenoids from the Rare Chloranthaceae Plant Chloranthus sessilifolius and Their Antineuroinflammatory Activities. JOURNAL OF NATURAL PRODUCTS 2015; 78:1635-1646. [PMID: 26126961 DOI: 10.1021/acs.jnatprod.5b00195] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Fourteen new ent-abietane-type diterpenoids, sessilifols A-N (1-14), and three related new norditerpenoids (15-17) were isolated from Chloranthus sessilifolius. The absolute configurations were determined by single-crystal X-ray diffraction analysis, the modified Mosher's method, and/or the observed Cotton effects in their electronic circular dichroism spectra. Sessilifols A (1) and B (2) possess an uncommon five-membered C-ring rearranged by oxidative cleavage of the C-13/C-14 bond in abieta-7,13-diene followed by the formation of a new C-C bond between C-12 and C-14. Sessilifol C (3) is a rare 7,8-seco-9-spiro-fused ent-abietane, whereas sessilifol O (15) represents the first example of a naturally occurring 14-norabietane-type diterpenoid. Compounds 6 and 9 were found to have moderate antineuroinflammatory activities by inhibiting the nitric oxide production in lipopolysaccharide-stimulated murine BV-2 microglial cells, with IC50 values of 8.3 and 7.4 μM, respectively.
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Affiliation(s)
- Li-Jun Wang
- †Department of Natural Products Chemistry and ‡Department of Pharmacology, School of Pharmacy, Fudan University, No. 826 Zhangheng Road, Shanghai 201203, People's Republic of China
| | - Juan Xiong
- †Department of Natural Products Chemistry and ‡Department of Pharmacology, School of Pharmacy, Fudan University, No. 826 Zhangheng Road, Shanghai 201203, People's Republic of China
| | - Shu-Ting Liu
- †Department of Natural Products Chemistry and ‡Department of Pharmacology, School of Pharmacy, Fudan University, No. 826 Zhangheng Road, Shanghai 201203, People's Republic of China
| | - Li-Long Pan
- †Department of Natural Products Chemistry and ‡Department of Pharmacology, School of Pharmacy, Fudan University, No. 826 Zhangheng Road, Shanghai 201203, People's Republic of China
| | - Guo-Xun Yang
- †Department of Natural Products Chemistry and ‡Department of Pharmacology, School of Pharmacy, Fudan University, No. 826 Zhangheng Road, Shanghai 201203, People's Republic of China
| | - Jin-Feng Hu
- †Department of Natural Products Chemistry and ‡Department of Pharmacology, School of Pharmacy, Fudan University, No. 826 Zhangheng Road, Shanghai 201203, People's Republic of China
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Metabolites from Combretum dolichopetalum and its associated endophytic fungus Nigrospora oryzae--Evidence for a metabolic partnership. Fitoterapia 2015; 105:147-50. [PMID: 26136060 DOI: 10.1016/j.fitote.2015.06.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 06/23/2015] [Accepted: 06/24/2015] [Indexed: 11/24/2022]
Abstract
A new altersolanol derivative, 4-dehydroxyaltersolanol A (9), along with two known sesquiterpenoids, (S)-7'-hydroxyabscisic acid (7) and (S)-abscisic acid (8) were obtained from the endophytic fungus, Nigrospora oryzae, isolated from leaves of Combretum dolichopetalum. The host plant yielded six known compounds including ellagic acid (1), 3, 3', 4-tri-O-methylellagic acid (2), arjunolic acid (3), 4'-dihydrophaseic acid (4), echinulin (5) and arestrictin B (6). Close structural similarities with regard to compounds 4, 7 and 8 were observed between the metabolites from the host plant and those of the endophytic fungus. Furthermore compounds 5 and 6 are related to alkaloids isolated from N. oryzae previously thus stressing the notion that some of the isolated plant metabolites may actually be of fungal origin. The structures of the isolated compounds were established by spectroscopic methods including 1D, 2D NMR, MS, and by comparison with the literature. 4-Dehydroxyaltersolanol A (9) and 3, 3', 4-tri-O-methylellagic acid (2) showed cytotoxicity against L5178Y mouse lymphoma cells with IC50 values of 9.4 and 29.0 μM, respectively.
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Li N, Tuo ZD, Xing SS, Qi SZ, Lee HS, Cui L. A New Dammarane-type Triterpene with PTP1B Inhibitory Activity from Gynostemma pentaphyllum. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.10.3122] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ma QG, Wang YG, Liu WM, Wei RR, Yang JB, Wang AG, Ji TF, Tian J, Su YL. Hepatoprotective sesquiterpenes and rutinosides from Murraya koenigii (L.) Spreng. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:4145-4151. [PMID: 24749720 DOI: 10.1021/jf5005034] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Three new sesquiterpenes (1-3) and two new rutinosides (4 and 5) along with 17 known compounds (6-22) were isolated from the leaves of Murraya koenigii (L.) Spreng. The new compounds were elucidated as (3R,5S,6R)-3,5,6-trihydroxy-1,1,5-trimethylcyclohexyl-8-butyn-9-one (1), (8E,9R)-ethyl-7-(3S,5R,6S)-3,6-dihydroxy-1,1,5-trimethylcyclohexyl-9-hydroxybut-8-enoate (2), (3R)-3-O-β-D-glucoside-6'-D-apiose-β-ionone (3), 4-O-β-D-rutinosyl-3-methoxyphenyl-1-propanone (4), and 1-O-β-D-rutinosyl-2(R)-ethyl-1-pentanol (5) based on their spectroscopic data. Compounds 1, 4, 5, 18, and 21 (10 μM) exhibited moderate hepatoprotective activities.
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Affiliation(s)
- Qin-Ge Ma
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University , Nanyan 473061, People's Republic of China
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Masi M, Meyer S, Cimmino A, Andolfi A, Evidente A. Pyrenophoric acid, a phytotoxic sesquiterpenoid penta-2,4-dienoic acid produced by a potential mycoherbicide, Pyrenophora semeniperda. JOURNAL OF NATURAL PRODUCTS 2014; 77:925-930. [PMID: 24641210 DOI: 10.1021/np4009915] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A new phytotoxic sesquiterpenoid penta-2,4-dienoic acid, named pyrenophoric acid, was isolated from solid wheat seed culture of Pyrenophora semeniperda, a fungal pathogen proposed as a mycoherbicide for biocontrol of cheatgrass (Bromus tectorum) and other annual bromes. These bromes are serious weeds in winter cereals and also on temperate semiarid rangelands. Pyrenophoric acid was characterized as (2Z,4E)-5-[(7S,9S,10R,12R)-3,4-dihydroxy-2,2,6-trimethylcyclohexyl)]-3-methylpenta-2,4-dienoic acid by spectroscopic and chemical methods. The relative stereochemistry of pyrenophoric acid was assigned using 1H,1H couplings and NOESY experiments, while its absolute configuration was determined by applying the advanced Mosher's method. Pyrenophoric acid is structurally quite closely related to the plant growth regulator abscisic acid. When bioassayed in a cheatgrass coleoptile elongation test at 10(-3) M, pyrenophoric acid showed strong phytotoxicity, reducing coleoptile elongation by 51% relative to the control. In a mixture at 10(-4) M, its negative effect on coleoptile elongation was additive with that of cytochalasin B, another phytotoxic compound found in the wheat seed culture extract of this fungus, demonstrating that the extract toxicity observed in earlier studies was due to the combined action of multiple phytotoxic compounds.
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Affiliation(s)
- Marco Masi
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte Sant' Angelo , Via Cintia 4, 80126 Napoli, Italy
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The first cyclomegastigmane rhododendroside A from Rhododendron brachycarpum alleviates HMGB1-induced sepsis. Biochim Biophys Acta Gen Subj 2014; 1840:2042-9. [PMID: 24576671 DOI: 10.1016/j.bbagen.2014.02.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 02/12/2014] [Accepted: 02/18/2014] [Indexed: 01/15/2023]
Abstract
BACKGROUND Endangered plant species are a vital resource for exploring novel drug prototypes. A Korean endangered plant Rhododendron brachycarpum G. Don is a broad-leaved shrub native to northern Korea and central Japan. The high mobility group box 1 protein (HMGB1) could be a specific target for the discovery of novel antiseptic agents. METHODS Gauge-invariant atomic orbital (GIAO) NMR chemical shift calculations were applied for investigation of stereochemical details with accuracy improved by application of DP4 analysis. In vitro antiseptic mechanisms were investigated utilizing immunofluorescence staining, ELISA and cell-cell adhesion assay. Cecal ligation and puncture (CLP) operation was employed to evaluate in vivo potential alleviating severe sepsis and septic shock. RESULTS The first bicyclic megastigmane glucoside rhododendroside A (1) along with known megastigmane glucosides (2-5) were isolated from the leaves of R. brachycarpum. The structure of 1 was established by NMR analysis as well as comparison of the experimental chemical shifts with those of computed values employing DP4 application. In the CLP operation model that simulates severe sepsis, rhododendroside A (1) improved the survival rate up to 60%. CONCLUSIONS Our results exhibit that R. brachycarpum may produce a unique scaffold that is developed into a drug lead mitigating HMGB1-induced vascular pro-inflammatory stimuli and thus alleviating severe sepsis and related manifestations. GENERAL SIGNIFICANCE Discovery of new drug leads would warrant conservation efforts of endangered species.
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Yang F, Shi H, Zhang X, Yu LL. Two novel anti-inflammatory 21-nordammarane saponins from tetraploid Jiaogulan ( Gynostemma pentaphyllum ). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:12646-12652. [PMID: 24320209 DOI: 10.1021/jf404726z] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Two novel 20-oxo-21-nordammar-22, 24-diene saponins, 21-norgypenosides A (1) and B (2), were characterized from the aerial parts of tetraploid Jiaogulan ( Gynostemma pentaphyllum ), a popular tea ingredient. Their structures, including the absolute configurations, were comprehensively elucidated by HRESIMS, 1D and 2D NMR data, chemical degradation, and through comparison of the experimental and calculated electronic circular dichroism (ECD) spectra. The two compounds suppressed the expression of interleukin (IL)-1β, cyclooxygenase (COX)-2, and tumor necrosis factor (TNF)-α mRNAs in the lipopolysaccharide-induced RAW 264.7 mouse macrophage cells at 10 and 100 μg/mL, suggesting their potential anti-inflammatory effects.
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Affiliation(s)
- Fei Yang
- Institute of Food and Nutraceutical Science, SJTU-Rich Research Institute, School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai 200240, China
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Zeng Q, Guan B, Cheng X, Wang C, Jin HZ, Zhang WD. Chemical constituents from Metasequoia glyptostroboides Hu et Cheng. BIOCHEM SYST ECOL 2013. [DOI: 10.1016/j.bse.2013.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Chiranthanut N, Teekachunhatean S, Panthong A, Khonsung P, Kanjanapothi D, Lertprasertsuk N. Toxicity evaluation of standardized extract of Gynostemma pentaphyllum Makino. JOURNAL OF ETHNOPHARMACOLOGY 2013; 149:228-234. [PMID: 23796877 DOI: 10.1016/j.jep.2013.06.027] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 05/08/2013] [Accepted: 06/13/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE To evaluate the safety of standardized extract of Gynostemma pentaphyllum in rats. MATERIALS AND METHODS The water extract of Gynostemma pentaphyllum was prepared and standardized, the dry powder yielded 6% gypenosides. In the acute oral toxicity test, the single oral dose of 5000 mg/kg of Gynostemma pentaphyllum extract was given to female Sprague-Dawley rats. In subchronic toxicity test, the oral dose of 1000 mg/kg/day of the extract was given to rats in treatment and satellite groups for 90 days. Satellite groups of both sexes were kept for additional 28 days after 90-day treatment. Control rats received distilled water. RESULTS Standardized extract of Gynostemma pentaphyllum did not cause death or any toxic signs in rats. The daily administration of the extract for 90 days did not produce lethal or harmful effects. Although certain hematological and blood chemistry values (i.e., neutrophil, monocyte, glucose, and serum alkaline phosphatase levels) were found to be statistically different from the control group, however; these values were within the ranges of normal rats. CONCLUSION Standardized extract of Gynostemma pentaphyllum did not produce mortality or any abnormality in rats.
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Affiliation(s)
- Natthakarn Chiranthanut
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
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Tang Y, Fu Y, Xiong J, Li M, Ma GL, Yang GX, Wei BG, Zhao Y, Zhang HY, Hu JF. Casuarinines A-J, lycodine-type alkaloids from Lycopodiastrum casuarinoides. JOURNAL OF NATURAL PRODUCTS 2013; 76:1475-1484. [PMID: 23941108 DOI: 10.1021/np4003355] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Ten new lycodine-type alkaloids, named casuarinines A-J (1-10), along with eight known analogues (11-18), were isolated from the whole plant of Lycopodiastrum casuarinoides . The new structures were established by spectroscopic methods and chemical transformations. Casuarinines A-D (1-4) and J (10) are common lycodine alkaloids possessing four connected six-membered rings, while tricyclic casuarinines E-H (5-8) are the piperidine ring cleavage products. In particular, casuarinine I (9) has an unprecedented five-membered tetrahydropyrrole ring instead of the piperidine ring. A plausible biosynthetic pathway to 9 is proposed. Among the compounds reported, casuarinine H (8) exhibited significant neuroprotective effect against hydrogen peroxide (H₂O₂)-induced neuronal cell damage in human neuroblastoma SH-SY5Y cells, while casuarinines C (3) and I (9) showed moderate inhibitory activity against acetylcholinesterase (AChE).
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Affiliation(s)
- Yu Tang
- Department of Natural Products Chemistry, School of Pharmacy, Fudan University, No. 826 Zhangheng Road, Shanghai 201203, People's Republic of China
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Zang Y, Xiong J, Zhai WZ, Cao L, Zhang SP, Tang Y, Wang J, Su JJ, Yang GX, Zhao Y, Fan H, Xia G, Wang CG, Hu JF. Fomentarols A-D, sterols from the polypore macrofungus Fomes fomentarius. PHYTOCHEMISTRY 2013; 92:137-145. [PMID: 23747096 DOI: 10.1016/j.phytochem.2013.05.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 02/23/2013] [Accepted: 05/08/2013] [Indexed: 06/02/2023]
Abstract
Four (1-4) hitherto unknown and seven (5-11) known ergostane-type sterols were isolated from the EtOH extract of the dried fruiting bodies of the polypore macrofungus Fomes fomentarius. On the basis of spectroscopic analysis, the structures of polyhydroxylated sterols 1-4 were elucidated to be (22E,24R)-3β,5α,6β,14α-tetrahydroxyergosta-7,9(11),22-triene (fomentarol A, 1), (22E,24R)-3β,5β,6α,7α-tetrahydroxy-8α,9α-dihydroergosta-14,22-diene (fomentarol B, 2), (22E,24R)-3β,5α-dihydroxy-6β-ethoxyergosta-7,22-diene (fomentarol C, 3), and (22E,24S)-3β,25-dihydroxy-15α-O-β-D-glucopyranosylergosta-7,22-dien-6-one (fomentarol D, 4), respectively. Rings A/B and B/C are in turn cis-fused in compound 2, which is uncommon in natural ergostane-type sterols. The potential biogenetic relationship of 2 and other ergostane-type sterols isolated from F. fomentarius was briefly discussed. Moderate cytotoxic effects of the isolated sterols against a small panel of human cancer cell lines were also established.
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Affiliation(s)
- Yi Zang
- Department of Natural Products Chemistry, School of Pharmacy, Fudan University, No. 826 Zhangheng Road, Shanghai 201203, PR China
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Abstract
Nineteen compounds and an HPLC inseparable mixture, composed of compounds 20 and 21, were isolated from the leaves and twigs of Dendropanax dentiger (Harms ex Diels) Merr. Of these, syringin (1) is the most abundant, 6′- O-apiofuranosyl dendranthemoside A (16) is a new megastigmane glycoside, and 3-methoxy-D-mannono-1,4-lactone (21) is a new hexono-1,4-lactone. Their structures were elucidated based on NMR spectroscopic and MS analyses.
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Affiliation(s)
- Yi-Chun Lai
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei 10051, Taiwan, Republic of China
| | - Shoei-Sheng Lee
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei 10051, Taiwan, Republic of China
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