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Li Y, Zhang Y, Li W, Wu Z, Chen N, Wang G, Li Y. Isopropylpyrone and Phenylpyrones from the Leaves of
Hypericum monogynum. ChemistrySelect 2020. [DOI: 10.1002/slct.201903815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ying‐Ying Li
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs ResearchJinan University Guangzhou 510632, P. R. China
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), School of PharmacyJinan University Guangzhou 510632, P. R. China
| | - Yu−Bo Zhang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs ResearchJinan University Guangzhou 510632, P. R. China
- Department of Pharmacology, School of MedicineJinan University Guangzhou 510632, P. R. China
| | - Wen Li
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs ResearchJinan University Guangzhou 510632, P. R. China
| | - Zhong‐Nan Wu
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs ResearchJinan University Guangzhou 510632, P. R. China
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), School of PharmacyJinan University Guangzhou 510632, P. R. China
| | - Neng‐Hua Chen
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs ResearchJinan University Guangzhou 510632, P. R. China
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), School of PharmacyJinan University Guangzhou 510632, P. R. China
| | - Guo‐Cai Wang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs ResearchJinan University Guangzhou 510632, P. R. China
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), School of PharmacyJinan University Guangzhou 510632, P. R. China
| | - Yao‐Lan Li
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs ResearchJinan University Guangzhou 510632, P. R. China
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), School of PharmacyJinan University Guangzhou 510632, P. R. China
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Nicolussi S, Drewe J, Butterweck V, Meyer Zu Schwabedissen HE. Clinical relevance of St. John's wort drug interactions revisited. Br J Pharmacol 2020; 177:1212-1226. [PMID: 31742659 PMCID: PMC7056460 DOI: 10.1111/bph.14936] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 11/01/2019] [Accepted: 11/10/2019] [Indexed: 12/22/2022] Open
Abstract
The first clinically relevant reports of preparations of St. John's wort (SJW), a herbal medicine with anti‐depressant effects, interacting with other drugs, altering their bioavailability and efficacy, were published about 20 years ago. In 2000, a pharmacokinetic interaction between SJW and cyclosporine caused acute rejection in two heart transplant patients. Since then, subsequent research has shown that SJW altered the pharmacokinetics of drugs such as digoxin, tacrolimus, indinavir, warfarin, alprazolam, simvastatin, or oral contraceptives. These interactions were caused by pregnane‐X‐receptor (PXR) activation. Preparations of SJW are potent activators of PXR and hence inducers of cytochrome P450 enzymes (most importantly CYP3A4) and P‐glycoprotein. The degree of CYP3A4 induction correlates significantly with the hyperforin content in the preparation. Twenty years after the first occurrence of clinically relevant pharmacokinetic drug interactions with SJW, this review revisits the current knowledge of the mechanisms of action and on how pharmacokinetic drug interactions with SJW could be avoided. Linked Articles This article is part of a themed section on The Pharmacology of Nutraceuticals. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v177.6/issuetoc
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Affiliation(s)
- Simon Nicolussi
- Medical Research, Max Zeller Söhne AG, Romanshorn, Switzerland
| | - Jürgen Drewe
- Medical Research, Max Zeller Söhne AG, Romanshorn, Switzerland
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Xiao CY, Mu Q, Gibbons S. The Phytochemistry and Pharmacology of Hypericum. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 112 2020; 112:85-182. [DOI: 10.1007/978-3-030-52966-6_2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Rizzo P, Altschmied L, Stark P, Rutten T, Gündel A, Scharfenberg S, Franke K, Bäumlein H, Wessjohann L, Koch M, Borisjuk L, Sharbel TF. Discovery of key regulators of dark gland development and hypericin biosynthesis in St. John's Wort (Hypericum perforatum). PLANT BIOTECHNOLOGY JOURNAL 2019; 17:2299-2312. [PMID: 31037808 PMCID: PMC6835128 DOI: 10.1111/pbi.13141] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/18/2019] [Accepted: 04/27/2019] [Indexed: 05/12/2023]
Abstract
Hypericin is a molecule of high pharmaceutical importance that is synthesized and stored in dark glands (DGs) of St. John's Wort (Hypericum perforatum). Understanding which genes are involved in dark gland development and hypericin biosynthesis is important for the development of new Hypericum extracts that are highly demanded for medical applications. We identified two transcription factors whose expression is strictly synchronized with the differentiation of DGs. We correlated the content of hypericin, pseudohypericin, endocrocin, skyrin glycosides and several flavonoids with gene expression and DG development to obtain a revised model for hypericin biosynthesis. Here, we report for the first time genotypes which are polymorphic for the presence/total absence (G+/G-) of DGs in their placental tissues (PTs). DG development was characterized in PTs using several microscopy techniques. Fourier transform infrared microscopy was established as a novel method to precisely locate polyaromatic compounds, such as hypericin, in plant tissues. In addition, we obtained transcriptome and metabolome profiles of unprecedented resolution in Hypericum. This study addresses for the first time the development of dark glands and identifies genes that constitute strong building blocks for the further elucidation of hypericin synthesis, its manipulation in plants, its engineering in microbial systems and its applications in medical research.
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Affiliation(s)
- Paride Rizzo
- Leibniz‐Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK)GaterslebenGermany
| | - Lothar Altschmied
- Leibniz‐Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK)GaterslebenGermany
| | - Pauline Stark
- Leibniz‐Institut für Pflanzenbiochemie (IPB)Halle (Saale)Germany
| | - Twan Rutten
- Leibniz‐Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK)GaterslebenGermany
| | - André Gündel
- Leibniz‐Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK)GaterslebenGermany
| | | | - Katrin Franke
- Leibniz‐Institut für Pflanzenbiochemie (IPB)Halle (Saale)Germany
| | - Helmut Bäumlein
- Leibniz‐Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK)GaterslebenGermany
| | | | - Marcus Koch
- Ruprecht Karls Universität HeidelbergHeidelbergGermany
| | - Ljudmilla Borisjuk
- Leibniz‐Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK)GaterslebenGermany
| | - Timothy F. Sharbel
- Leibniz‐Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK)GaterslebenGermany
- Global Institute for Food Security (GIFS)University of SaskatchewanSaskatoonSKCanada
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Kimáková K, Kimáková A, Idkowiak J, Stobiecki M, Rodziewicz P, Marczak Ł, Čellárová E. Phenotyping the genus Hypericum by secondary metabolite profiling: emodin vs. skyrin, two possible key intermediates in hypericin biosynthesis. Anal Bioanal Chem 2018; 410:7689-7699. [PMID: 30291388 PMCID: PMC6244766 DOI: 10.1007/s00216-018-1384-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 09/11/2018] [Accepted: 09/17/2018] [Indexed: 11/13/2022]
Abstract
A wide range of compounds that occur in the genus Hypericum are listed as effective drugs of natural origin. The main biological activities of several Hypericum representatives are due to the presence of naphthodianthrones, phloroglucinols, and other diverse groups of secondary metabolites that synergistically contribute to their therapeutic effects. The regulation of biosynthesis of hypericin as the key bioactive naphthodianthrone remains uncertain. Here, we present liquid chromatography mass spectrometry-based phenotyping of 17 Hypericum species, the results of which suggest an important role for skyrin and its derivatives in the polyketide pathway that leads to hypericin formation. Moreover, we report for the first time the presence of new metabolites in the genus Hypericum that are related to classes of anthraquinones, their derivatives, and phloroglucinols. As skyrin and other species of anthraquinones are rarely found in higher plants but frequently occur in fungal microorganisms, the obtained results suggest that further research on the synthesis pathways of hypericin and the role of anthraquinone derivatives in plant metabolism should be carried out. The fact that these compounds are commonly synthesized in endophytic fungi and perhaps there is some similarity in the metabolic pathways between these organisms should also be investigated.
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Affiliation(s)
- Katarína Kimáková
- Faculty of Science, Institute of Biology and Ecology, Department of Genetics, P. J. Šafárik University in Košice, Mánesova 23, 040 01, Košice, Slovakia
| | - Andrea Kimáková
- Faculty of Science, Institute of Biology and Ecology, Department of Genetics, P. J. Šafárik University in Košice, Mánesova 23, 040 01, Košice, Slovakia
| | - Jakub Idkowiak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznań, Poland
| | - Maciej Stobiecki
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznań, Poland
| | - Paweł Rodziewicz
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznań, Poland
| | - Łukasz Marczak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznań, Poland.
| | - Eva Čellárová
- Faculty of Science, Institute of Biology and Ecology, Department of Genetics, P. J. Šafárik University in Košice, Mánesova 23, 040 01, Košice, Slovakia.
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Khan H, Amin S, Patel S. Targeting BDNF modulation by plant glycosides as a novel therapeutic strategy in the treatment of depression. Life Sci 2018; 196:18-27. [DOI: 10.1016/j.lfs.2018.01.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 01/06/2018] [Accepted: 01/12/2018] [Indexed: 12/19/2022]
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7
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Fobofou SAT, Franke K, Porzel A, Brandt W, Wessjohann LA. Tricyclic Acylphloroglucinols from Hypericum lanceolatum and Regioselective Synthesis of Selancins A and B. JOURNAL OF NATURAL PRODUCTS 2016; 79:743-753. [PMID: 26950610 DOI: 10.1021/acs.jnatprod.5b00673] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The chemical investigation of the chloroform extract of Hypericum lanceolatum guided by (1)H NMR, ESIMS, and TLC profiles led to the isolation of 11 new tricyclic acylphloroglucinol derivatives, named selancins A-I (1-9) and hyperselancins A and B (10 and 11), along with the known compound 3-O-geranylemodin (12), which is described for a Hypericum species for the first time. Compounds 8 and 9 are the first examples of natural products with a 6-acyl-2,2-dimethylchroman-4-one core fused with a dimethylpyran unit. The new compounds 1-9 are rare acylphloroglucinol derivatives with two fused dimethylpyran units. Compounds 10 and 11 are derivatives of polycyclic polyprenylated acylphloroglucinols related to hyperforin, the active component of St. John's wort. Their structures were elucidated by UV, IR, extensive 1D and 2D NMR experiments, HRESIMS, and comparison with the literature data. The absolute configurations of 5, 8, 10, and 11 were determined by comparing experimental and calculated electronic circular dichroism spectra. Compounds 1 and 2 were synthesized regioselectively in two steps. The cytotoxicity of the crude extract (88% growth inhibition at 50 μg/mL) and of compounds 1-6, 8, 9, and 12 (no significant growth inhibition up to a concentration of 10 mM) against colon (HT-29) and prostate (PC-3) cancer cell lines was determined. No anthelmintic activity was observed for the crude extract.
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Affiliation(s)
- Serge A T Fobofou
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, 06120 Halle (Saale), Germany
| | - Katrin Franke
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, 06120 Halle (Saale), Germany
| | - Andrea Porzel
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, 06120 Halle (Saale), Germany
| | - Wolfgang Brandt
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, 06120 Halle (Saale), Germany
| | - Ludger A Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, 06120 Halle (Saale), Germany
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Fobofou SAT, Harmon CR, Lonfouo AHN, Franke K, Wright SM, Wessjohann LA. Prenylated phenyl polyketides and acylphloroglucinols from Hypericum peplidifolium. PHYTOCHEMISTRY 2016; 124:108-113. [PMID: 26880290 DOI: 10.1016/j.phytochem.2016.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 02/01/2016] [Accepted: 02/07/2016] [Indexed: 06/05/2023]
Abstract
In search for new or chemo-taxonomically relevant bioactive compounds from chemically unexplored Hypericum species, four previously undescribed natural products, named peplidiforones A-D were isolated and characterized from Hypericum peplidifolium A. Rich., together with six known compounds. The structures of all compounds were elucidated by extensive 1D- and 2D-NMR experiments, high resolution mass spectrometric analyses (HR-MS), and by comparison with data reported in the literature. Seven of these compounds are phenyl polyketides while three are acylphloroglucinol type compounds. Peplidiforone C, which possesses an unusual carbon skeleton consisting of a furan ring substituted by a 2,2-dimethylbut-3-enoyl moiety, is the first example of a prenylated furan derivative isolated from the genus Hypericum. The cytotoxicity, antifungal, and anti-herpes simplex virus type 1 (HSV-1) activities of extracts and compounds are described.
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Affiliation(s)
- Serge Alain Tanemossu Fobofou
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
| | - Chelsea Rebecca Harmon
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany; Department of Chemistry, Middle Tennessee State University, P.O. Box 68, Murfreesboro, TN 37132, USA
| | - Antoine Honoré Nkuete Lonfouo
- Laboratory of Natural Products Chemistry, Department of Chemistry, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Katrin Franke
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany.
| | - Stephen M Wright
- Department of Biology, Middle Tennessee State University, P.O. Box 60, Murfreesboro, TN 37132, USA
| | - Ludger A Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany.
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López J, de la Cruz F, Alcaraz Y, Delgado F, Vázquez MA. Quinoid systems in chemistry and pharmacology. Med Chem Res 2015. [DOI: 10.1007/s00044-015-1412-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Zhao J, Liu W, Wang JC. Recent Advances Regarding Constituents and Bioactivities of Plants from the GenusHypericum. Chem Biodivers 2015; 12:309-49. [DOI: 10.1002/cbdv.201300304] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Indexed: 11/08/2022]
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Hussain H, Al-Harrasi A, Green IR, Abbas G, Ahmed I. Recent Advances in the Chemistry and Biology of Natural Dimeric Quinones. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2015. [DOI: 10.1016/b978-0-444-63462-7.00010-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Chen JJ, Chen HJ, Lin YL. Novel polyprenylated phloroglucinols from Hypericum sampsonii. Molecules 2014; 19:19836-44. [PMID: 25460308 PMCID: PMC6271684 DOI: 10.3390/molecules191219836] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 11/25/2014] [Accepted: 11/25/2014] [Indexed: 11/16/2022] Open
Abstract
Hypericum sampsonii Hance (Clusiaceae) is a folk medicine used in Taiwan to treat blood stasis, relieve swelling, and as an anti-hepatitis drug. Two new polyprenylated phloroglucinol derivatives, hypersampsone R (1) and hypersampsone S (2), and a known prenylated benzophenone, hyperibone K (3) were isolated from the aerial parts of H. sampsonii. Their structures were determined by extensive 1D and 2D NMR, and MS spectral analyses.
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Affiliation(s)
- Jih-Jung Chen
- Department of Pharmacy, Tajen University, Pingtung 907, Taiwan.
| | - Hong-Jhang Chen
- National Research Institute of Chinese Medicine, Taipei 112, Taiwan.
| | - Yun-Lian Lin
- National Research Institute of Chinese Medicine, Taipei 112, Taiwan.
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Tanemossu SAF, Franke K, Arnold N, Schmidt J, Wabo HK, Tane P, Wessjohann LA. Rare biscoumarin derivatives and flavonoids from Hypericum riparium. PHYTOCHEMISTRY 2014; 105:171-177. [PMID: 24930002 DOI: 10.1016/j.phytochem.2014.05.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 03/05/2014] [Accepted: 05/05/2014] [Indexed: 06/03/2023]
Abstract
Hypericum riparium A. Chev. is a Cameroonian medicinal plant belonging to the family Guttiferae. Chemical investigation of the methanol extract of the stem bark of H. riparium led to the isolation of four natural products, 7,7'-dihydroxy-6,6'-biscoumarin (1), 7,7'-dihydroxy-8,8'-biscoumarin (2), 7-methoxy-6,7'-dicoumarinyl ether (3), 2'-hydroxy-5'-(7″-methoxycoumarin-6″-yl)-4'-methoxyphenylpropanoic acid (4), together with one known 7,7'-dimethoxy-6,6'-biscoumarin (5), two flavones, 2'-methoxyflavone (6) and 3'-methoxy flavone (7), and two steroids, stigmast-4-en-3-one (8) and ergosta-4,6,8,22-tetraen-3-one (9). In addition, tetradecanoic acid (10), n-pentadecanoic acid (11), hexadecanoic acid (12), cis-10-heptadecenoic acid (13), octadecanoic acid (14) campesterol (15), stigmasterol (16), β-sitosterol (17), stigmastanol (18), β-eudesmol (19), 1-hexadecanol (20), and 1-octadecanol (21) were identified by GC-MS analysis. Compound 4 consists of a phenylpropanoic acid derivative fused with a coumarin unit, while compounds 2 and 3 are rare members of C8-C8' and C7-O-C6 linked biscoumarins. Their structures were elucidated by UV, IR, extensive 1D- and 2D-NMR experiments and electrospray (ESI) high resolution mass spectrometry (MS) including detailed MS/MS studies. This is the first report on the isolation of biscoumarins from the genus Hypericum, although simple coumarin derivatives have been reported from this genus in the literature. The cytotoxic activities of compounds 2-5 were evaluated against the human prostate cancer cell line PC-3 and the colon cancer cell line HT-29. They do not exhibit any significant cytotoxic activity.
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Affiliation(s)
- Serge Alain Fobofou Tanemossu
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany; Laboratory of Natural Products Chemistry, Department of Chemistry, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Katrin Franke
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
| | - Norbert Arnold
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
| | - Jürgen Schmidt
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
| | - Hippolyte Kamdem Wabo
- Laboratory of Natural Products Chemistry, Department of Chemistry, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Pierre Tane
- Laboratory of Natural Products Chemistry, Department of Chemistry, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Ludger A Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany.
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Rattanaburi S, Daus M, Watanapokasin R, Mahabusarakam W. A new bisanthraquinone and cytotoxic xanthones from Cratoxylum cochinchinense. Nat Prod Res 2014; 28:606-10. [PMID: 24571674 DOI: 10.1080/14786419.2014.886212] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Suthida Rattanaburi
- Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Mareena Daus
- Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Ramida Watanapokasin
- Department of Biochemistry, Faculty of Medicine, Srinakharinwirot University, Sukumvit 23, Bangkok 10110, Thailand
| | - Wilawan Mahabusarakam
- Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
- Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
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Podlesny EE, Kozlowski MC. Divergent approach to the bisanthraquinone natural products: total synthesis of (S)-bisoranjidiol and derivatives from binaphtho-para-quinones. J Org Chem 2013; 78:466-76. [PMID: 23249414 PMCID: PMC3560291 DOI: 10.1021/jo302364h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The development of the first asymmetric synthesis of a chiral anthraquinone dimer is outlined, resulting in the first total synthesis of (S)-bisoranjidiol. Rather than a biomimetic dimerization retrosynthetic disconnection, the anthracenyl ring systems are generated after formation of the axially chiral binaphthalene framework. This synthetic strategy has enabled the synthesis of several analogues. Key features of the synthesis include the enantioselective coupling of a hindered 2-naphthol containing substitution peri to the site of C-C bond formation, the regioselective oxidation of 8,8'-hydroxylated binaphthols to binaphtho-para-quinones, and a tandem regioselective Diels-Alder/aromatization reaction.
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Affiliation(s)
- Erin E. Podlesny
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Marisa C. Kozlowski
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
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Micioni Di Bonaventura MV, Vitale G, Massi M, Cifani C. Effect of Hypericum perforatum Extract in an Experimental Model of Binge Eating in Female Rats. J Obes 2012; 2012:956137. [PMID: 22997570 PMCID: PMC3444926 DOI: 10.1155/2012/956137] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Revised: 07/31/2012] [Accepted: 08/01/2012] [Indexed: 12/19/2022] Open
Abstract
Purpose. The present study evaluated the effect of Hypericum perforatum dry extract in an experimental model of binge eating (BE). Methods. BE for highly palatable food (HPF) was evoked in female rats by three 8-day cycles of food restriction/re-feeding and acute stress on the test day (day 25). Stress was induced by preventing access to HPF for 15 min, while rats were able to see and smell it. Hypericum perforatum dry extract was given by gavage. Results. Only rats exposed to both food restrictions and stress exhibited BE. The doses of 250 and 500 mg/kg of Hypericum perforatum extract significantly reduced the BE episode, while 125 mg/kg was ineffective. The same doses did not affect HPF intake in the absence of BE. The dose of 250 mg/kg did not significantly modify stress-induced increase in serum corticosterone levels, suggesting that the effect on BE is not due to suppression of the stress response The combined administration of 125 mg/kg of Hypericum perforatum together with Salidroside, active principle of Rhodiola rosea, produced a synergic effect on BE. Conclusions. The present results indicate for the first time that Hypericum perforatum extracts may have therapeutic properties in bingeing-related eating disorders.
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Affiliation(s)
| | - Giovanni Vitale
- Department of Biomedical Sciences, University of Modena and Reggio Emilia, 41100 Modena, Italy
| | - Maurizio Massi
- School of Pharmacy, Pharmacology Unit, University of Camerino, 62032 Camerino, Italy
| | - Carlo Cifani
- School of Pharmacy, Pharmacology Unit, University of Camerino, 62032 Camerino, Italy
- *Carlo Cifani:
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17
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Moncayo R. Reflections on the theory of "silver bullet" octreotide tracers: implications for ligand-receptor interactions in the age of peptides, heterodimers, receptor mosaics, truncated receptors, and multifractal analysis. EJNMMI Res 2011; 1:9. [PMID: 22214590 PMCID: PMC3251005 DOI: 10.1186/2191-219x-1-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Accepted: 07/26/2011] [Indexed: 12/25/2022] Open
Abstract
The classical attitude of Nuclear Medicine practitioners on matters of peptide-receptor interactions has maintained an intrinsic monogamic character since many years. New advances in the field of biochemistry and even in clinical Nuclear Medicine have challenged this type of thinking, which prompted me to work on this review. The central issue of this paper will be the use of somatostatin analogs, i.e., octreotide, in clinical imaging procedures as well as in relation to neuroendocirne tumors. Newly described characteristics of G-protein coupled receptors such as the formation of receptor mosaics will be discussed. A small section will enumerate the regulatory processes found in the cell membrane. Possible new interpretations, other than tumor detection, based on imaging procedures with somatostatin analogs will be presented. The readers will be taken to situations such as inflammation, nociception, mechanosensing, chemosensing, fibrosis, taste, and vascularity where somatostatin is involved. Thyroid-associated orbitopathy will be used as a model for the development of multi-agent therapeutics. The final graphical summary depicts the multifactorial properties of ligand binding.
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Affiliation(s)
- Roy Moncayo
- Department of Nuclear Medicine, Medical University of Innsbruck, Innsbruck, Austria.
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18
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Saddiqe Z, Naeem I, Maimoona A. A review of the antibacterial activity of Hypericum perforatum L. JOURNAL OF ETHNOPHARMACOLOGY 2010; 131:511-21. [PMID: 20659547 DOI: 10.1016/j.jep.2010.07.034] [Citation(s) in RCA: 166] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2009] [Revised: 07/16/2010] [Accepted: 07/16/2010] [Indexed: 05/19/2023]
Abstract
Hypericum perforatum L. (Hypericaceae) is a perennial herb that is commonly known as St. John's Wort. The plant has been valued for its important biological and chemical perspectives and its use in the treatment of infectious diseases has been documented in ethnobotanical reports. Most recent interest in H. perforatum has focused on its antidepressant effects, and only recently has its antimicrobial activity been evaluated against a number of bacterial and fungal strains. The present review gives a comprehensive summary of the ethnobotanical uses, chemical constituents and biological effects (antibacterial and antifungal) of this species. A comprehensive account of the chemical constituents including anthraquinone derivatives (naphthodianthrones), flavonoids, prenylated phloroglucinols, tannins and volatile oils is also included. Various types of preparations, ointments, creams and extracts prepared with and compounds isolated from this species have been found to possess a broad spectrum of biological and pharmacological effects such as antidepressant effects, wound-healing, antiviral and antimicrobial activity. The antibacterial activity of crude extracts can be related to the use of the herb as a wound healer in ancient times. The sole antibacterial principle isolated to date is a tetraketone, hyperforin, also thought to be responsible for the antidepressant activity of the herb. The available literature indicates that it has a higher antibacterial activity against Gram-positive than Gram-negative bacteria, and alcoholic extracts (methanolic/ethanolic) were shown to possess more pronounced activity than aqueous extracts. Based on the chemical and pharmacological characteristics of H. perforatum, we concluded that this species has beneficial therapeutic properties and has the potential for use as an effective adaptogenic herbal remedy.
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Affiliation(s)
- Zeb Saddiqe
- Department of Chemistry, Lahore College for Women University, Jail Road, Lahore 54600, Pakistan. zeb
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19
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Niu Y, Zhang L, Zhou ZY, Zhu YC, Liu JK. A new compound from Hypericum reptans. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2010; 12:719-722. [PMID: 20706911 DOI: 10.1080/10286020.2010.489509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A new compound, 2,7,4a-trimethoxy-1,4,4a,8b-tetrahydrodibenzo-p-dioxin-4-one (1), was isolated from the aerial parts of the Hypericum reptans. The structure of the new compound was elucidated on the basis of extensive analysis of 1D and 2D NMR spectroscopic data and further confirmed by single-crystal X-ray diffraction.
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Affiliation(s)
- Yun Niu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
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20
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Holstege CP, Mitchell K, Barlotta K, Furbee RB. Toxicity and drug interactions associated with herbal products: ephedra and St. John's Wort. Med Clin North Am 2005; 89:1225-57. [PMID: 16227061 DOI: 10.1016/j.mcna.2005.08.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Health care providers are being increasingly confronted with the use of herbal medications by their patients. It is imperative that patients be questioned regarding herbal preparation use and that health care providers become familiar with these agents. Research into the active components and mechanisms of action of various herbals is ongoing [350]. Long-range studies need to be performed to follow patients for efficacy or toxicity in chronic use [351,352]. Adverse reactions to herbal remedies should be reported to the FDA MedWatch at http://www.fda.gov/medwatch. As withany therapeutic agent, risk of use must always be weighed against potential benefits.
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Affiliation(s)
- Christopher P Holstege
- Division of Medical Toxicology, University of Virginia, Charlottesville, VA 22908-0774, USA.
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21
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Gamiotea-Turro D, Cuesta-Rubio O, Prieto-González S, De Simone F, Passi S, Rastrelli L. Antioxidative constituents from the leaves of Hypericum styphelioides. JOURNAL OF NATURAL PRODUCTS 2004; 67:869-871. [PMID: 15165152 DOI: 10.1021/np030364f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Two new compounds have been isolated from the leaves of Hypericum styphelioides. Their structures have been established on the basis of mass spectrometry and 2D NMR techniques as 1,3,5-trihydroxy-2-(2',2'-dimethyl-4'-isopropenyl)cyclopentanylxanthone (1) and 3,5-dihydroxybenzophenon-4-beta-d-glucoside (2). Known compounds 5-O-demethylpaxanthonin (3) and 3-geranyl-1-(3-methylbutanoyl)phloroglucinol (4) were also isolated and characterized. Compounds 1-4 were evaluated for their antioxidative properties in Trolox equivalent antioxidant activity (TEAC) and chemiluminescence (CL) assays.
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Affiliation(s)
- Daylin Gamiotea-Turro
- Center of Pharmaceutical Chemistry (CQF), 200 & 21, Atabey, Playa, PO Box 16042, Apartado 6990, La Habana, Cuba
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22
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Don MJ, Huang YJ, Huang RL, Lin YL. New Phenolic Principles from Hypericum sampsonii. Chem Pharm Bull (Tokyo) 2004; 52:866-9. [PMID: 15256712 DOI: 10.1248/cpb.52.866] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Using the anti-hepatitis B virus (HBV)-producing cell line MS-G2 in vitro cultural system-guided screening was performed, and two new benzophenones, 2,6-dihydroxy-4-[(E)-5-hydroxy-3,7-dimethylocta-2,7-dienyloxy]benzophenone (1) and 2,6-dihydroxy-4-[(E)-7-hydroxy-3,7-dimethylocta-2-enyloxy]benzophenone (2), a new xanthone, hyperxanthone (3), a new bisanthraquinone glycoside, R-(-)-skyrin-6-O-beta-D-xylopyranoside (4), and 2-caffeoyloxy-3-hydroxy-3-(3,4-dihydroxyphenyl)propyl alcohol (5), and 16 known compounds were isolated from the anti-HBV active fraction of the whole herbs of Hypericum sampsonii. Their structures were elucidated using spectroscopic methods, mainly 2D NMR and MS spectrometry. Circular dichroism was used to determine the stereochemistry of bisanthraquinone glycosides.
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Affiliation(s)
- Ming-Jaw Don
- National Research Institute of Chinese Medicine, Taipei, Taiwan
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Saunders J, Williams J. Antagonists of the corticotropin releasing factor receptor. PROGRESS IN MEDICINAL CHEMISTRY 2003; 41:195-247. [PMID: 12774695 DOI: 10.1016/s0079-6468(02)41006-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- John Saunders
- Department of Chemistry, Neurocrine Biosciences, 10555 Science Center Drive, San Diego, CA 92121, USA
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Cardellina JH. Challenges and opportunities confronting the botanical dietary supplement industry. JOURNAL OF NATURAL PRODUCTS 2002; 65:1073-1084. [PMID: 12141880 DOI: 10.1021/np0200515] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The intent of this review is to identify and characterize the scientific challenges confronting the botanical dietary supplements industry, explore opposing sides of some controversial issues, and outline an agenda for addressing the more acute problems. The issues posing the greatest challenge to the industry center on quality, safety, and benefit. A key conclusion is that development of the scientific base of the industry has not kept pace with the rapid expansion of the manufacturing and marketing components. Recommendations for addressing the existing challenges are offered.
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Affiliation(s)
- John H Cardellina
- Council for Responsible Nutrition, 1875 Eye Street NW, Suite 400, Washington, DC 20006-5409, USA.
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