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Kotajima M, Choi JH, Kondo M, D’Alessandro-Gabazza CN, Toda M, Yasuma T, Gabazza EC, Miwa Y, Shoda C, Lee D, Nakai A, Kurihara T, Wu J, Hirai H, Kawagishi H. Axl, Immune Checkpoint Molecules and HIF Inhibitors from the Culture Broth of Lepista luscina. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248925. [PMID: 36558053 PMCID: PMC9781456 DOI: 10.3390/molecules27248925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Two compounds 1 and 2 were isolated from the culture broth of Lepista luscina. This is the first time that compound 1 was isolated from a natural source. The structure of compound 1 was identified via 1D and 2D NMR and HRESIMS data. Compounds 1 and 2 along with 8-nitrotryptanthrin (4) were evaluated for their biological activities using the A549 lung cancer cell line. As a result, 1 and 2 inhibited the expression of Axl and immune checkpoint molecules. In addition, compounds 1, 2 and 4 were tested for HIF inhibitory activity. Compound 2 demonstrated statistically significant HIF inhibitory effects on NIH3T3 cells and 1 and 2 against ARPE19 cells.
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Affiliation(s)
- Mihaya Kotajima
- Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Jae-Hoon Choi
- Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute for Mushroom Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Mitsuru Kondo
- Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | | | - Masaaki Toda
- Department of Immunology, Graduate School of Medicine, Mie University, Edobashi 2-174, Tsu 524-8507, Japan
| | - Taro Yasuma
- Department of Immunology, Graduate School of Medicine, Mie University, Edobashi 2-174, Tsu 524-8507, Japan
| | - Esteban C. Gabazza
- Department of Immunology, Graduate School of Medicine, Mie University, Edobashi 2-174, Tsu 524-8507, Japan
| | - Yukihiro Miwa
- Department of Ophthalmology, Keio University School of Medicine, 35 Shina-nomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Chiho Shoda
- Department of Ophthalmology, Keio University School of Medicine, 35 Shina-nomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Deokho Lee
- Department of Ophthalmology, Keio University School of Medicine, 35 Shina-nomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Ayaka Nakai
- Department of Ophthalmology, Keio University School of Medicine, 35 Shina-nomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Toshihide Kurihara
- Department of Ophthalmology, Keio University School of Medicine, 35 Shina-nomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Jing Wu
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute for Mushroom Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Hirofumi Hirai
- Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute for Mushroom Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Hirokazu Kawagishi
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute for Mushroom Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Correspondence:
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Sun Q, Leng J, Tang L, Wang L, Fu C. A Comprehensive Review of the Chemistry, Pharmacokinetics, Pharmacology, Clinical Applications, Adverse Events, and Quality Control of Indigo Naturalis. Front Pharmacol 2021; 12:664022. [PMID: 34135755 PMCID: PMC8200773 DOI: 10.3389/fphar.2021.664022] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/10/2021] [Indexed: 01/09/2023] Open
Abstract
Indigo naturalis (IN), which is derived from indigo plants such as Strobilanthes cusia (Nees) Kuntze, Persicaria tinctoria (Aiton) Spach, and Isatis tinctoria L., has been traditionally used in the treatment of hemoptysis, epistaxis, chest pain, aphtha, and infantile convulsion in China for thousands of years. Clinical trials have shown that the curative effect of IN for psoriasis and ulcerative colitis (UC) is remarkable. A total of sixty-three compounds, including indole alkaloids, terpenoids, organic acids, steroids, and nucleosides, have been isolated from IN, of which indole alkaloids are the most important. Indirubin, isolated from IN, was used as a new agent to treat leukemia in China in the 1970s. Indirubin is also an active ingredient in the treatment of psoriasis. Pharmacological studies have confirmed that IN has inhibitory effects on inflammation, tumors, bacteria, and psoriasis. Indigo, indirubin, tryptanthrin, isorhamnetin, indigodole A, and indigodole C are responsible for these activities. This review provides up-to-date and comprehensive information on IN with regard to its chemistry, pharmacokinetics, pharmacology, clinical applications, adverse events, and quality control. This review may also serve a reference for further research on IN.
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Affiliation(s)
- Quan Sun
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Pharmacy, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Jing Leng
- Department of Pharmacy, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Ling Tang
- Department of Pharmacy, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Lijuan Wang
- Department of Pathology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Chaomei Fu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Yu H, Li TN, Ran Q, Huang QW, Wang J. Strobilanthes cusia (Nees) Kuntze, a multifunctional traditional Chinese medicinal plant, and its herbal medicines: A comprehensive review. JOURNAL OF ETHNOPHARMACOLOGY 2021; 265:113325. [PMID: 32889034 DOI: 10.1016/j.jep.2020.113325] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 08/16/2020] [Accepted: 08/24/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Strobilanthes cusia (Nees) Kuntze (SCK, Malan), a traditional Chinese medicinal plant, has long applied to detoxification, defervescence, detumescence and antiphlogosis. "Southern Banlangen" (Rhizoma et Radix Baphicacanthis Cusiae, RRBC), root and rhizome of SCK, is widely used for treatment of many epidemic diseases. Malanye (Southern Daqingye), stem and leaf of SCK, is an antipyretic-alexipharmic drug frequently-used in southern China. Qingdai (Indigo Naturalis, IN), a processed product of SCK, is always applied to dermatoses in the folk. AIM OF THE REVIEW In order to elucidate the historical uses, recent advances and pharmaceutical prospects of SCK, we summarized roundly in aspects of history, processing method, chemical constitution, quality control, pharmacological activity and toxicity. Some deficiencies in current studies and research directions in the future are also discussed. This is the first comprehensive review of SCK and its herbal medicines, which may be of some help for further research. METHODOLOGY Comprehensive analysis was conducted on the basis of academic papers, pharmaceutical monographs, ancient medicinal works, and drug standards of China. All available information on SCK and its herbal medicines was collected by using the keywords such as "Strobilanthes cusia", "Southern Banlangen", "indirubin", "tryptanthrin" through different electronic databases including NCBI Pubmed, Google Scholar, Chinese National Knowledge Infrastructure and so on. Pharmacopoeia of China and some ancient works were obtained from National Digital Library of China. RESULT Medicinal uses of SCK were already described by famous ancient researchers. Because of vague description, plant species in some works cannot be confirmed. Literature demonstrated that multiple components including total 36 alkaloids and 35 glycosides, the main bioactive components of SCK, were found in SCK and its herbal medicines. Modern studies indicated that SCK and some of its components had multiple pharmacological effects including resistance to cancer, remission of inflammation, suppression of microorganisms, relief of dermatoses, and so on. However, studies on pharmacology, pharmacokinetics, and quality control are still not enough. CONCLUSION A number of reports suggested that SCK and its processed medicines could be promising drug candidates for multiple diseases especially promyelocytic leukemia, ulcerative colitis (UC) and psoriasis. However, bioactive activities of most components, especially glycosides should still be explored further. It is crucial to elucidate the in-depth molecular mechanisms, and pharmacokinetic characteristics of main components in those herbal medicines. Moreover, to ensure the effectiveness of clinical medication, future studies should undoubtedly give the priority to clarifying the effective compositions of SCK, and then a measurement standard of those indicators should be protocolled to establish a comprehensive quality evaluation mode.
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Affiliation(s)
- Han Yu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, China.
| | - Ting-Na Li
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, China.
| | - Qian Ran
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, China.
| | - Qin-Wan Huang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, China.
| | - Jin Wang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, China.
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Amara R, Awad H, Chaker D, Bentabed‐Ababsa G, Lassagne F, Erb W, Chevallier F, Roisnel T, Dorcet V, Fajloun Z, Vidal J, Mongin F. Conversion of Isatins to Tryptanthrins, Heterocycles Endowed with a Myriad of Bioactivities. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900352] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Rim Amara
- Univ Rennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226 35000 Rennes France
- Laboratoire de Synthèse Organique Appliquée Faculté des Sciences Exactes et Appliquées Université Oran1 Ahmed Ben Bella BP 1524 El M'Naouer 31000 Oran Algeria
| | - Haçan Awad
- Faculty of Sciences 3 Lebanese University Campus El‐Kobbeh Tripoli Lebanon
| | - Diana Chaker
- Laboratory of Applied Biotechnology Azm Center for Research in Biotechnology and its Applications, EDST Lebanese University 1300 Tripoli Lebanon
| | - Ghenia Bentabed‐Ababsa
- Laboratoire de Synthèse Organique Appliquée Faculté des Sciences Exactes et Appliquées Université Oran1 Ahmed Ben Bella BP 1524 El M'Naouer 31000 Oran Algeria
| | - Frédéric Lassagne
- Univ Rennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226 35000 Rennes France
| | - William Erb
- Univ Rennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226 35000 Rennes France
| | - Floris Chevallier
- Univ Rennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226 35000 Rennes France
| | - Thierry Roisnel
- Univ Rennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226 35000 Rennes France
| | - Vincent Dorcet
- Univ Rennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226 35000 Rennes France
| | - Ziad Fajloun
- Faculty of Sciences 3 Lebanese University Campus El‐Kobbeh Tripoli Lebanon
- Laboratory of Applied Biotechnology Azm Center for Research in Biotechnology and its Applications, EDST Lebanese University 1300 Tripoli Lebanon
| | - Joëlle Vidal
- Univ Rennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226 35000 Rennes France
| | - Florence Mongin
- Univ Rennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226 35000 Rennes France
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Li Z, Zhang Y, Gao Y, Xiang Y, Zhang W, Lu C, Zhuang X. Atipamezole is a promising non-discriminative inhibitor against pan-CYP450 including diclofenac 4′-hydroxylation: A comparison with ABT for drug ADME optimization and mechanism study. Eur J Pharm Sci 2019; 130:156-165. [DOI: 10.1016/j.ejps.2019.01.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 12/18/2018] [Accepted: 01/09/2019] [Indexed: 12/27/2022]
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Onambele LA, Riepl H, Fischer R, Pradel G, Prokop A, Aminake MN. Synthesis and evaluation of the antiplasmodial activity of tryptanthrin derivatives. INTERNATIONAL JOURNAL FOR PARASITOLOGY-DRUGS AND DRUG RESISTANCE 2015; 5:48-57. [PMID: 25949928 PMCID: PMC4417838 DOI: 10.1016/j.ijpddr.2015.03.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 03/19/2015] [Accepted: 03/20/2015] [Indexed: 11/26/2022]
Abstract
We report the synthesis of tryptanthrin derivatives. We report the activity of tryptanthrin derivatives against Plasmodium falciparum. We discuss the potential of tryptanthrin derivatives as multi-stage drugs. We recommend the formulation and testing of tryptanthrins in in vivo studies.
Malaria remains one of the most deadly diseases threatening humankind and is still affecting a significant proportion of the world population, especially in Africa. Chemotherapy is a vital component of the fight against the disease and new antimalarial agents are urgently needed to curb the spread of malaria parasites that are resistant to existing drugs. The natural product tryptanthrin is known for its wide range of activities, including antiplasmodial activity, but its poor solubility has undermined its development as potent antimicrobial and antiprotozoan agent. The aim of this work was to synthesize analogues of tryptanthrin and to evaluate their antiplasmodial activity against the asexual and sexual blood stages of Plasmodium falciparum. Our results suggest that most tryptanthrin analogues retained their antiplasmodial activity against chloroquine-sensitive and chloroquine-resistant malaria parasites in the nanomolar range (30–100 nM). The antiplasmodial activity of the most active compound NT1 (IC50: 30 nM; SI: 155.9) was similar in both strains and close to that of chloroquine (IC50: 20 nM) on the sensitive strain. The antiplasmodial activity was improved with derivatization, thus pointing out the necessity to explore tryptanthrin using medicinal chemistry approaches. Ten (10) of the tested derivatives met the criteria, allowing for advancement to animal testing, i.e., SI > 100 and IC50 < 100 nM. In addition to their activity on the asexual stages, tryptanthrin and two selected derivatives (NT1 and T8) prevented the maturation of gametocytes at their IC90 concentrations, indicating a transmission-blocking potential. Moreover, NT1 was able to impair gametogenesis by reducing the exflagellation of microgametes by 20% at IC90, while tryptanthrin and T8 had no influence on exflagellation. The results of this study confirm that tryptanthrin and its derivatives are potential antimalarial candidates with abilities to kill the intraerythrocytic asexual stages and prevent the formation of sexual stages of the parasite.
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Affiliation(s)
| | - Herbert Riepl
- HochschuleWeihenstephan-Triesdorf, Organic-analytical Chemistry, 94315 Straubing, Germany
| | - Rainer Fischer
- Institute of Molecular Biotechnology, RWTH Aachen University, 52074 Aachen, Germany
| | - Gabriele Pradel
- Institute of Molecular Biotechnology, RWTH Aachen University, 52074 Aachen, Germany
| | - Aram Prokop
- Department of Paediatric Oncology, Children's Hospital Cologne, 50735 Köln, Germany
| | - Makoah Nigel Aminake
- Institute of Molecular Biotechnology, RWTH Aachen University, 52074 Aachen, Germany ; Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
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Wang W, Li X, Chen Y, Hattori M. Structural elucidation of rat biliary metabolites of corynoxeine and their quantification using LC-MSn. Biomed Chromatogr 2014; 28:1219-28. [DOI: 10.1002/bmc.3149] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 12/20/2013] [Accepted: 01/08/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Wei Wang
- School of Pharmaceutical Sciences and Yunnan Provincial Key Laboratory of Pharmacology for Natural Products; Kunming Medical University; Chenggong Kunming Yunnan 650500 People's Republic of China
- Division of Metabolic Engineering, Institute of Natural Medicine; University of Toyama; Sugitani Toyama 930-0194 Japan
| | - Xinmei Li
- School of Pharmaceutical Sciences and Yunnan Provincial Key Laboratory of Pharmacology for Natural Products; Kunming Medical University; Chenggong Kunming Yunnan 650500 People's Republic of China
| | - Yaping Chen
- School of Pharmaceutical Sciences and Yunnan Provincial Key Laboratory of Pharmacology for Natural Products; Kunming Medical University; Chenggong Kunming Yunnan 650500 People's Republic of China
| | - Masao Hattori
- Division of Metabolic Engineering, Institute of Natural Medicine; University of Toyama; Sugitani Toyama 930-0194 Japan
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Song M, Do H, Kwon OK, Yang EJ, Bae JS, Jeong TC, Song KS, Lee S. A Comparison of the In Vitro Inhibitory Effects of Thelephoric Acid and SKF-525A on Human Cytochrome P450 Activity. Biomol Ther (Seoul) 2014; 22:155-60. [PMID: 24753822 PMCID: PMC3975472 DOI: 10.4062/biomolther.2013.107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/20/2014] [Accepted: 03/12/2014] [Indexed: 11/05/2022] Open
Abstract
Thelephoric acid is an antioxidant produced by the hydrolysis of polyozellin, which is isolated from Polyozellus multiplex. In the present study, the inhibitory effects of polyozellin and thelephoric acid on 9 cytochrome P450 (CYP) family members (CYP1A2, CYP2A6, CYP2B6, CYP2C8, CYP2C9, CYP2C19, CYP2D6, CYP2E1, and CYP3A4) were examined in pooled human liver microsomes (HLMs) using a cocktail probe assay. Polyozellin exhibited weak inhibitory effects on the activities of all 9 CYPs examined, whereas thelephoric acid exhibited dose- and time-dependent inhibition of all 9 CYP isoforms (IC50 values, 3.2-33.7 μM). Dixon plots of CYP inhibition indicated that thelephoric acid was a competitive inhibitor of CYP1A2 and CYP3A4. In contrast, thelephoric acid was a noncompetitive inhibitor of CYP2D6. Our findings indicate that thelephoric acid may be a novel, non-specific CYP inhibitor, suggesting that it could replace SKF-525A in inhibitory studies designed to investigate the effects of CYP enzymes on the metabolism of given compounds.
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Affiliation(s)
- Min Song
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - HyunHee Do
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Oh Kwang Kwon
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Eun-Ju Yang
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Jong-Sup Bae
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Tae Cheon Jeong
- College of Pharmacy, Yeungnam University, Gyeungsan 712-749, Republic of Korea
| | - Kyung-Sik Song
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Sangkyu Lee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Republic of Korea
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Moskovkina TV, Denisenko MV, Kalinovskii AI, Stonik VA. Synthesis of substituted tryptanthrins via oxidation of isatin and its derivatives. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2014. [DOI: 10.1134/s1070428013120051] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Jahng Y. Progress in the studies on tryptanthrin, an alkaloid of history. Arch Pharm Res 2013; 36:517-35. [DOI: 10.1007/s12272-013-0091-9] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Accepted: 03/11/2013] [Indexed: 11/28/2022]
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Pergola C, Jazzar B, Rossi A, Northoff H, Hamburger M, Sautebin L, Werz O. On the inhibition of 5-lipoxygenase product formation by tryptanthrin: mechanistic studies and efficacy in vivo. Br J Pharmacol 2012; 165:765-76. [PMID: 21797843 DOI: 10.1111/j.1476-5381.2011.01605.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND AND PURPOSE Leukotrienes (LTs) are pro-inflammatory mediators produced by 5-lipoxygenase (5-LO). Currently available 5-LO inhibitors either lack efficacy or are toxic and novel approaches are required to establish a successful anti-LT therapy. Here we provide a detailed evaluation of the effectiveness of the plant-derived alkaloid tryptanthrin as an inhibitor of LT biosynthesis. EXPERIMENTAL APPROACH We analysed LT formation and performed mechanistic studies in human neutrophils stimulated with pathophysiologically relevant stimuli (LPS and formyl peptide), as well as in cell-free assays (neutrophil homogenates or recombinant human 5-LO) and in human whole blood. The in vivo effectiveness of tryptanthrin was evaluated in the rat model of carrageenan-induced pleurisy. KEY RESULTS Tryptanthrin potently reduced LT-formation in human neutrophils (IC(50) = 0.6µM). However, tryptanthrin is not a redox-active compound and did not directly interfere with 5-LO activity in cell-free assays. Similarly, tryptanthrin did not inhibit the release of arachidonic acid, the activation of MAPKs, or the increase in [Ca(2+) ](i) , but it modified the subcellular localization of 5-LO. Moreover, tryptanthrin potently suppressed LT formation in human whole blood (IC(50) = 10µM) and reduced LTB(4) levels in the rat pleurisy model after a single oral dose of 10mg·kg(-1) . CONCLUSIONS AND IMPLICATIONS Our data reveal that tryptanthrin is a potent natural inhibitor of cellular LT biosynthesis with proven efficacy in whole blood and is effective in vivo after oral administration. Its unique pharmacological profile supports further analysis to exploit its pharmacological potential.
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Affiliation(s)
- C Pergola
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, University Jena, Jena, Germany.
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Wang W, Ma CM, Hattori M. Metabolism and Pharmacokinetics of Rhynchophylline in Rats. Biol Pharm Bull 2010; 33:669-76. [DOI: 10.1248/bpb.33.669] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Wei Wang
- Division of Metabolic Engineering, Institute of Natural Medicine, University of Toyama
| | - Chao-Mei Ma
- Division of Metabolic Engineering, Institute of Natural Medicine, University of Toyama
| | - Masao Hattori
- Division of Metabolic Engineering, Institute of Natural Medicine, University of Toyama
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Koyama J, Takeuchi A, Morita I, Nishino Y, Shimizu M, Inoue M, Kobayashi N. Characterization of emodin metabolites in Raji cells by LC–APCI-MS/MS. Bioorg Med Chem 2009; 17:7493-9. [DOI: 10.1016/j.bmc.2009.09.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2009] [Revised: 09/07/2009] [Accepted: 09/10/2009] [Indexed: 11/28/2022]
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Song R, Lin H, Zhang Z, Li Z, Xu L, Dong H, Tian Y. Profiling the metabolic differences of anthraquinone derivatives using liquid chromatography/tandem mass spectrometry with data-dependent acquisition. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2009; 23:537-547. [PMID: 19142847 DOI: 10.1002/rcm.3907] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This work concentrates on the in vitro metabolism of anthraquinone derivatives from rhubarb. Different metabolic reactions for anthraquinone derivatives were dependent on the substituent group in the skeleton. Monohydroxylation in the exocyclic methyl group was the major metabolic modification for emodin. Aloe-emodin containing a hydroxymethyl group was mainly metabolized through a methylation reaction. For rhein, both hydrogenation and methyl substitution on the benzene ring were the major metabolic reactions. Hydroxyl substitution on the benzene ring was the predominant metabolic reaction for chrysophanol. For physcion, demethylation of the exocyclic methoxy group was the most important metabolic reaction.
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Affiliation(s)
- Rui Song
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Nanjing 210009, PR China
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Song R, Xu F, Zhang Z, Liu Y, Dong H, Tian Y. Structural elucidation ofin vitrometabolites of emodin by liquid chromatography-tandem mass spectrometry. Biomed Chromatogr 2008; 22:1230-6. [DOI: 10.1002/bmc.1050] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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