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Martínez-Casares RM, Hernández-Vázquez L, Mandujano A, Sánchez-Pérez L, Pérez-Gutiérrez S, Pérez-Ramos J. Anti-Inflammatory and Cytotoxic Activities of Clerodane-Type Diterpenes. Molecules 2023; 28:4744. [PMID: 37375299 DOI: 10.3390/molecules28124744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/02/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
The secondary metabolites of clerodane diterpenoids have been found in several plant species from various families and in other organisms. In this review, we included articles on clerodanes and neo-clerodanes with cytotoxic or anti-inflammatory activity from 2015 to February 2023. A search was conducted in the following databases: PubMed, Google Scholar and Science Direct, using the keywords clerodanes or neo-clerodanes with cytotoxicity or anti-inflammatory activity. In this work, we present studies on these diterpenes with anti-inflammatory effects from 18 species belonging to 7 families and those with cytotoxic activity from 25 species belonging to 9 families. These plants are mostly from the Lamiaceae, Salicaceae, Menispermaceae and Euphorbiaceae families. In summary, clerodane diterpenes have activity against different cell cancer lines. Specific antiproliferative mechanisms related to the wide range of clerodanes known today have been described, since many of these compounds have been identified, some of which we barely know their properties. It is very possible that there are even more compounds than those described today, in such a way that makes it an open field to discover. Furthermore, some diterpenes presented in this review have already-known therapeutic targets, and therefore, their potential adverse effects can be predicted in some way.
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Affiliation(s)
- Rubria Marlen Martínez-Casares
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Coyoacán 04960, CDMX, Mexico
| | - Liliana Hernández-Vázquez
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Coyoacán 04960, CDMX, Mexico
| | - Angelica Mandujano
- Departamento de Atención a la Salud, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Coyoacán 04960, CDMX, Mexico
| | - Leonor Sánchez-Pérez
- Departamento de Atención a la Salud, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Coyoacán 04960, CDMX, Mexico
| | - Salud Pérez-Gutiérrez
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Coyoacán 04960, CDMX, Mexico
| | - Julia Pérez-Ramos
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Coyoacán 04960, CDMX, Mexico
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Cheng WJ, Chiang CC, Lin CY, Chen YL, Leu YL, Sie JY, Chen WL, Hsu CY, Kuo JJ, Hwang TL. Astragalus mongholicus Bunge Water Extract Exhibits Anti-inflammatory Effects in Human Neutrophils and Alleviates Imiquimod-Induced Psoriasis-Like Skin Inflammation in Mice. Front Pharmacol 2021; 12:762829. [PMID: 34955833 PMCID: PMC8707293 DOI: 10.3389/fphar.2021.762829] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 11/16/2021] [Indexed: 12/17/2022] Open
Abstract
Neutrophils are the primary immune cells in innate immunity, which are related to various inflammatory diseases. Astragalus mongholicus Bunge is a Chinese medicinal herb used to treat various oxidative stress-related inflammatory diseases. However, there are limited studies that elucidate the effects of Astragalus mongholicus Bunge in human neutrophils. In this study, we used isolated human neutrophils activated by various stimulants to investigate the anti-inflammatory effects of Astragalus mongholicus Bunge water extract (AWE). Cell-free assays were used to examine free radicals scavenging capabilities on superoxide anion, reactive oxygen species (ROS), and nitrogen-centered radicals. Imiquimod (IMQ) induced psoriasis-like skin inflammation mouse model was used for investigating anti-psoriatic effects. We found that AWE inhibited superoxide anion production, ROS generation, and elastase release in human neutrophils, which exhibiting a direct anti-neutrophil effect. Moreover, AWE exerted a ROS scavenging ability in the 2,2’-Azobis (2-amidinopropane) dihydrochloride assay, but not superoxide anion in the xanthine/xanthine oxidase assay, suggesting that AWE exhibited anti-oxidation and anti-inflammatory capabilities by both scavenging ROS and by directly inhibiting neutrophil activation. AWE also reduced CD11b expression and adhesion to endothelial cells in activated human neutrophils. Meanwhile, in mice with psoriasis-like skin inflammation, administration of topical AWE reduced both the affected area and the severity index score. It inhibited neutrophil infiltration, myeloperoxidase release, ROS-induced damage, and skin proliferation. In summary, AWE exhibited direct anti-inflammatory effects by inhibiting neutrophil activation and anti-psoriatic effects in mice with IMQ-induced psoriasis-like skin inflammation. Therefore, AWE could potentially be a pharmaceutical Chinese herbal medicine to inhibit neutrophilic inflammation for anti-psoriasis.
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Affiliation(s)
- Wei-Jen Cheng
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chih-Chao Chiang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Puxin Fengze Chinese Medicine Clinic, Taoyuan, Taiwan
| | - Cheng-Yu Lin
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yu-Li Chen
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | - Yann-Lii Leu
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Jia-Yu Sie
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Wen-Ling Chen
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chung-Yuan Hsu
- Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Jong-Jen Kuo
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Graduate Institute of Traditional Chinese Medicine, School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan.,Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City, Taiwan
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Feng Z, Cao J, Zhang Q, Lin L. The drug likeness analysis of anti-inflammatory clerodane diterpenoids. Chin Med 2020; 15:126. [PMID: 33298100 PMCID: PMC7727157 DOI: 10.1186/s13020-020-00407-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 11/26/2020] [Indexed: 12/14/2022] Open
Abstract
Inflammation is an active defense response of the body against external stimuli. Long term low-grade inflammation has been considered as a deteriorated factor for aging, cancer, neurodegeneration and metabolic disorders. The clinically used glucocorticoids and non-steroidal anti-inflammatory drugs are not suitable for chronic inflammation. Therefore, it's urgent to discover and develop new effective and safe drugs to attenuate inflammation. Clerodane diterpenoids, a class of bicyclic diterpenoids, are widely distributed in plants of the Labiatae, Euphorbiaceae and Verbenaceae families, as well as fungi, bacteria, and marine sponges. Dozens of anti-inflammatory clerodane diterpenoids have been identified on different assays, both in vitro and in vivo. In the current review, the up-to-date research progresses of anti-inflammatory clerodane diterpenoids were summarized, and their druglikeness was analyzed, which provided the possibility for further development of anti-inflammatory drugs.
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Affiliation(s)
- Zheling Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau, 999078, People's Republic of China
| | - Jun Cao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau, 999078, People's Republic of China
| | - Qingwen Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau, 999078, People's Republic of China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau, 999078, People's Republic of China.
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Clerodane Diterpenoids from Callicarpa hypoleucophylla and Their Anti-Inflammatory Activity. Molecules 2020; 25:molecules25102288. [PMID: 32414033 PMCID: PMC7287842 DOI: 10.3390/molecules25102288] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/08/2020] [Accepted: 05/12/2020] [Indexed: 02/02/2023] Open
Abstract
Plants of the genus Callicarpa are known to possess several medicinal effects. The constituents of the Taiwan endemic plant Callicarpa hypoleucophylla have never been studied. Therefore, C. hypoleucophylla was selected for our phytochemical investigation. Two new clerodane-type diterpenoids, named callihypolins A (1) and B (2), along with seven known compounds were isolated from the leaves and twigs of the Lamiaceae plant C. hypoleucophylla and then characterized. The structures of compounds 1 and 2 were elucidated by spectroscopic data analysis, specifically, two-dimension nuclear magnetic resonance (NMR). The anti-inflammatory activity of compounds 1-9 based on the suppression of superoxide anion generation and elastase release was evaluated. Among the isolates, compounds 2-4 showed anti-inflammatory activity (9.52-32.48% inhibition at the concentration 10 μm) by suppressing superoxide anion generation and elastase release. Our findings not only expand the description of the structural diversity of the compounds present in plants of the genus Callicarpa but also highlight the possibility of developing anti-inflammatory agents from Callicarpa endemic species.
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Chiang CC, Cheng WJ, Lin CY, Lai KH, Ju SC, Lee C, Yang SH, Hwang TL. Kan-Lu-Hsiao-Tu-Tan, a traditional Chinese medicine formula, inhibits human neutrophil activation and ameliorates imiquimod-induced psoriasis-like skin inflammation. JOURNAL OF ETHNOPHARMACOLOGY 2020; 246:112246. [PMID: 31539577 DOI: 10.1016/j.jep.2019.112246] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 09/05/2019] [Accepted: 09/16/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Kan-Lu-Hsiao-Tu-Tan (KLHTT) is a popular traditional Chinese medicine for treating various inflammatory diseases. AIM OF THE STUDY The aim of the present study was to investigate the anti-inflammatory effects of KLHTT on human neutrophils and its therapeutic potential in treating imiquimod (IMQ)-induced psoriasis-like skin inflammation. MATERIALS AND METHODS Spectrophotometry, flow cytometry, and microscopy with immunohistochemical staining were used to evaluate superoxide anion generation, elastase release, CD11b expression, adhesion, and neutrophil extracellular trap (NET) formation in activated human neutrophils. Reactive oxygen species (ROS) and reactive nitrogen species in cell-free systems were measured using a multi-well fluorometer or a spectrophotometer. A psoriasis-like skin inflammation was induced in mice using the IMQ cream. RESULTS KLHTT suppressed superoxide anion generation, ROS production, CD11b expression, and adhesion in activated human neutrophils. In contrast, KLHTT failed to alter elastase release in activated human neutrophils. Additionally, KLHTT had an ROS-scavenging effect in the AAPH assay, but it did not scavenge superoxide anions directly in the xanthine/xanthine oxidase assay. Protein kinase C (PKC)-induced NET formation most commonly occurs through ROS-dependent mechanisms. KLHTT significantly inhibited phorbol 12-myristate 13-acetate, a PKC activator, inducing NET formation. Furthermore, topical KLHTT treatment reduced the area affected by psoriasis area and severity index (PASI) score and ameliorated neutrophil infiltration in IMQ-induced psoriasis-like skin inflammation in mice. CONCLUSIONS Our data show that KLHTT has anti-neutrophilic inflammatory effects in inhibiting ROS generation and cell adhesion. KLHTT also mitigated NET formation, mainly via an ROS-dependent pathway. In addition, KLHTT reduced neutrophil infiltration and improved the severity of IMQ-induced psoriasis-like skin inflammation in mice. Therefore, KLHTT may prove to be a safe and effective psoriasis therapy in the future.
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Affiliation(s)
- Chih-Chao Chiang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan; Supervisory Board, Taoyuan Chinese Medicine Association, Taoyuan, 338, Taiwan; Puxin Fengze Chinese Medicine Clinic, Taoyuan, 326, Taiwan.
| | - Wei-Jen Cheng
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan; Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan; School of Traditional Chinese Medicine, Chang Gung University, Taoyuan, 333, Taiwan.
| | - Cheng-Yu Lin
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan.
| | - Kuei-Hung Lai
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan, 333, Taiwan.
| | - Seanson-Chance Ju
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan.
| | - Chuan Lee
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan.
| | - Sien-Hung Yang
- Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan; School of Traditional Chinese Medicine, Chang Gung University, Taoyuan, 333, Taiwan.
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan; Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan, 333, Taiwan; Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan, 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan; Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City, 243, Taiwan.
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Yao LJ, Jalil J, Attiq A, Hui CC, Zakaria NA. The medicinal uses, toxicities and anti-inflammatory activity of Polyalthia species (Annonaceae). JOURNAL OF ETHNOPHARMACOLOGY 2019; 229:303-325. [PMID: 30316887 DOI: 10.1016/j.jep.2018.10.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 10/04/2018] [Accepted: 10/06/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Polyalthia is one of the largest and notable genera in Annonaceae family. Polyalthia species have been widely used in folklore medicine for the treatment of rheumatic fever, gastrointestinal ulcer and generalized body pain. Numerous in vitro and in vivo studies on Polyalthia Species have also corroborated the significant anti-inflammatory potential of its extracts and secondary metabolites. AIM OF THE STUDY This review is an attempt to assess the anti-inflammatory activity of Polyalthia species by giving critical appraisal and establishing evidences of their traditional uses. Moreover this review will highlight the lead compounds for future drug development that can serve as a potential anti-inflammatory drug with comparative efficacy and minimum side effects. MATERIALS AND METHODS An extensive literature review, focusing the anti-inflammatory potential of Polyalthia species was conducted using the following databases:PubMed, ScienceDirect, SpringerLink, Ovid, Scopus and ProQuest, as well as the locally available books, journals and relevant documents. The reference lists of retrieved papers were also searched for additional studies. RESULTS The Polyalthia species have shown significant anti-inflammatory activity through various mechanism of action. The most significant anti-inflammatory mechanism includes the inhibition of nuclear factor kappa B (NF-κB), prostaglandins (PGs), pro-inflammatory cytokines, inducible nitric oxide synthase (iNOS) and reactive oxygen species (ROS). The data suggests that hydroxycleroda-3,13-dien-15,16-olide and 16-oxocleroda-3,13-dien-15-oic acid, quercetin, rutin, spinasterol, α-spinasterol, goniothalamin and (-)-5-hydroxygoniothalamin are the most potent anti-inflammatory compounds from Polyalthia species with comparable IC50 with positive controls. CONCLUSIONS Numerous pharmacological studies have supported the use of Polyalthia species against pain, rheumatic fever, haemorrhages and inflammation in traditional medicine. Flavonoids, diterpenoids, sterols and styrylpyrones from genus Polyalthia are the most significant class of compounds with potent anti-inflammatory activity. Secondary metabolites from these classes should be brought into further research to fill the gaps of knowledge in pharmacokinetics, pharmacodynamics, bioavailability, and toxicity in order to convert the pre-clinical results into clinical data for further investigation.
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Affiliation(s)
- Lui Jin Yao
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Juriyati Jalil
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
| | - Ali Attiq
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Chiew Chia Hui
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nurul Aimi Zakaria
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Attiq A, Jalil J, Husain K. Annonaceae: Breaking the Wall of Inflammation. Front Pharmacol 2017; 8:752. [PMID: 29104539 PMCID: PMC5654839 DOI: 10.3389/fphar.2017.00752] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 10/03/2017] [Indexed: 12/12/2022] Open
Abstract
Inventories of tropical forests have listed Annonaceae as one of the most diverse plant families. For centuries, it is employed in traditional medicines to cure various pathological conditions including snakebite, analgesic, astringent, diarrhea, dysentery, arthritis pain, rheumatism, neuralgia, and weight loss etc. Phytochemical analysis of Annonaceae family have reported the occurrence of alkaloids, flavonoids, triterpenes, diterpenes and diterpene flavone glycosides, sterols, lignans, and annonaceous acetogenin characteristically affiliated with Annonaceae sp. Numerous past studies have underlined the pleotropic pharmacological activities of the crude extracts and isolated compounds from Annonaceae species. This review is an effort to abridge the ethnobotany, morphology, phytochemistry, toxicity, and particularly focusing on the anti-inflammatory activity of the Annonaceae species.
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Affiliation(s)
- Ali Attiq
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Juriyati Jalil
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Khairana Husain
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Kuo PC, Hung HY, Hwang TL, Du WK, Ku HC, Lee EJ, Tai SH, Chen FA, Wu TS. Anti-inflammatory Flavan-3-ol-dihydroretrochalcones from Daemonorops draco. JOURNAL OF NATURAL PRODUCTS 2017; 80:783-789. [PMID: 28398735 DOI: 10.1021/acs.jnatprod.7b00039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Four A-type flavan-3-ol-dihydroretrochalcone dimers, dragonins A-D (1-4), were characterized from the traditional Chinese medicine Sanguis Draconis. The structures of 1-4 were elucidated by spectroscopic and spectrometric analyses. Compounds 1 and 2 exhibited significant inhibition of fMLP/CB-induced superoxide anion and elastase. The signaling pathways accounting for the inhibitory effects of compound 2 were also elucidated. These purified A-type flavan-3-ol-dihydroretrochalcones are new potential leads for the development of anti-inflammatory drugs.
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Affiliation(s)
- Ping-Chung Kuo
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University , Tainan 701, Taiwan
| | - Hsin-Yi Hung
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University , Tainan 701, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University ; Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Wen-Ke Du
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University , Tainan 701, Taiwan
| | - Hsiang-Chih Ku
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University ; Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - E-Jian Lee
- Department of Surgery and Anesthesiology, and Institute of Biomedical Engineering, National Cheng Kung University, Medical Center and Medical School , Tainan 701, Taiwan
| | - Shih-Huang Tai
- Department of Surgery and Anesthesiology, and Institute of Biomedical Engineering, National Cheng Kung University, Medical Center and Medical School , Tainan 701, Taiwan
| | - Fu-An Chen
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University , Pingtung 907, Taiwan
| | - Tian-Shung Wu
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University , Tainan 701, Taiwan
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University , Pingtung 907, Taiwan
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Li R, Morris-Natschke SL, Lee KH. Clerodane diterpenes: sources, structures, and biological activities. Nat Prod Rep 2016; 33:1166-226. [PMID: 27433555 PMCID: PMC5154363 DOI: 10.1039/c5np00137d] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Covering: 1990 to 2015The clerodane diterpenoids are a widespread class of secondary metabolites and have been found in several hundreds of plant species from various families and in organisms from other taxonomic groups. These substances have attracted interest in recent years due to their notable biological activities, particularly insect antifeedant properties. In addition, the major active clerodanes of Salvia divinorum can be used as novel opioid receptor probes, allowing greater insight into opioid receptor-mediated phenomena, as well as opening additional areas for chemical investigation. This article provides extensive coverage of naturally occurring clerodane diterpenes discovered from 1990 until 2015, and follows up on the 1992 review by Merritt and Ley in this same journal. The distribution, chemotaxonomic significance, chemical structures, and biological activities of clerodane diterpenes are summarized. In the cases where sufficient information is available, structure activity relationship (SAR) correlations and mode of action of active clerodanes have been presented.
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Affiliation(s)
- Rongtao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, Yunnan, People's Republic of China
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, North Carolina 27599-7568, USA
| | - Susan L. Morris-Natschke
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, North Carolina 27599-7568, USA
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, North Carolina 27599-7568, USA
- Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan
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Schepetkin IA, Khlebnikov AI, Kirpotina LN, Quinn MT. Antagonism of human formyl peptide receptor 1 with natural compounds and their synthetic derivatives. Int Immunopharmacol 2015; 37:43-58. [PMID: 26382576 DOI: 10.1016/j.intimp.2015.08.036] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 08/25/2015] [Accepted: 08/28/2015] [Indexed: 12/18/2022]
Abstract
Formyl peptide receptor 1 (FPR1) regulates a wide variety of neutrophil functional responses and plays an important role in inflammation and the pathogenesis of various diseases. To date, a variety of natural and synthetic molecules have been identified as FPR1 ligands. Here, we review current knowledge on natural products and natural product-inspired small molecules reported to antagonize and/or inhibit the FPR1-mediated responses. Based on this literature, additional screening of selected commercially available natural compounds for their ability to inhibit fMLF-induced Ca(2+) mobilization in human neutrophils and FPR1 transfected HL-60 cells, and pharmacophore modeling, natural products with potential as FPR1 antagonists are considered and discussed in this review. The identification and characterization of natural products that antagonize FPR1 activity may have potential for the development of novel therapeutics to limit or alter the outcome of inflammatory processes.
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Affiliation(s)
- Igor A Schepetkin
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, United States
| | - Andrei I Khlebnikov
- Department of Biotechnology and Organic Chemistry, Tomsk Polytechnic University, Tomsk 634050, Russia; Department of Chemistry, Altai State Technical University, Barnaul, Russia
| | - Liliya N Kirpotina
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, United States
| | - Mark T Quinn
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, United States.
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Clerodane type diterpene as a novel antifungal agent from Polyalthia longifolia var. pendula. Eur J Med Chem 2015; 94:1-7. [DOI: 10.1016/j.ejmech.2015.02.054] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 02/26/2015] [Accepted: 02/27/2015] [Indexed: 01/24/2023]
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Yang SC, Sung PJ, Lin CF, Kuo J, Chen CY, Hwang TL. Anti-inflammatory effects of secondary metabolites of marine Pseudomonas sp. in human neutrophils are through inhibiting P38 MAPK, JNK, and calcium pathways. PLoS One 2014; 9:e114761. [PMID: 25474595 PMCID: PMC4256452 DOI: 10.1371/journal.pone.0114761] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 11/13/2014] [Indexed: 01/01/2023] Open
Abstract
Activated neutrophils play a significant role in the pathogenesis of many inflammatory diseases. The metabolites of marine microorganisms are increasingly employed as sources for developing new drugs; however, very few marine drugs have been studied in human neutrophils. Herein, we showed that secondary metabolites of marine Pseudomonas sp. (N11) significantly inhibited superoxide anion generation and elastase release in formyl-L-methionyl-L-leucyl-L-phenylalanine (FMLP)-activated human neutrophils, with IC50 values of 0.67±0.38 µg/ml and 0.84±0.12 µg/ml, respectively. In cell-free systems, neither superoxide anion-scavenging effect nor inhibition of elastase activity was associated with the suppressive effects of N11. N11 inhibited the phosphorylation of p38 MAP kinase and JNK, but not Erk and Akt, in FMLP-induced human neutrophils. Also, N11 dose-dependently attenuated the transient elevation of intracellular calcium concentration in activated neutrophils. In contrast, N11 failed to alter phorbol myristate acetate-induced superoxide anion generation, and the inhibitory effects of N11 were not reversed by protein kinase A inhibitor. In conclusion, the anti-inflammatory effects of N11 on superoxide anion generation and elastase release in activated human neutrophils are through inhibiting p38 MAP kinase, JNK, and calcium pathways. Our results suggest that N11 has the potential to be developed to treat neutrophil-mediated inflammatory diseases.
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Affiliation(s)
- Shun-Chin Yang
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Department of Anesthesiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ping-Jyun Sung
- Department of Life Science and Graduate Institute of Biotechnology, Graduate Institute of Marine Biotechnology, National Dong Hwa University, Pingtung, Taiwan
| | - Chwan-Fwu Lin
- Department of Cosmetic Science, and Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | - Jimmy Kuo
- National Museum of Marine Biology & Aquarium, Pingtung, Taiwan
| | - Chun-Yu Chen
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, School of Traditional Medicine, College of Medicine, and Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan
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13
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Lai WC, Tsui YT, Singab ANB, El-Shazly M, Du YC, Hwang TL, Wu CC, Yen MH, Lee CK, Hou MF, Wu YC, Chang FR. Phyto-SERM constitutes from Flemingia macrophylla. Int J Mol Sci 2013; 14:15578-94. [PMID: 23896592 PMCID: PMC3759874 DOI: 10.3390/ijms140815578] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 07/06/2013] [Accepted: 07/15/2013] [Indexed: 11/16/2022] Open
Abstract
The methanolic extract of Flemingia macrophylla roots exhibited significant estrogenic activity in the transgenic plant assay system which was comparable to the activity of soybean extract. Utilizing estrogenic activity-guided fractionation, one new compound, fleminigin, together with 23 known compounds were isolated from F. macrophylla roots' methanolic extract. The structure of the new compound was identified based on intensive spectroscopic analysis and the full spectral data for one of the isolated compounds, flemichin E, was introduced for the first time in the current investigation. The estrogenic and anti-estrogenic activities of the isolated compounds were evaluated revealing that the isolated isoflavonoids may act as partial estrogen agonists, as well as antagonists. Additionally, the anti-inflammatory and the cytotoxic activities of the isolated compounds were studied. These results suggested the potential applications of F. macrophylla extract and its isolated compounds as selective estrogen receptor modulators (SERMs).
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Affiliation(s)
- Wan-Chun Lai
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; E-Mails: (W.-C.L.); (Y.-T.T.); (Y.-C.D.); (C.-C.W.); (M.-H.Y.)
| | - Ya-Ting Tsui
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; E-Mails: (W.-C.L.); (Y.-T.T.); (Y.-C.D.); (C.-C.W.); (M.-H.Y.)
| | - Abdel Nasser B. Singab
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity Street, Abassia, Cairo 11566, Egypt; E-Mails: (A.N.B.S.); (M.E.-S.)
| | - Mohamed El-Shazly
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; E-Mails: (W.-C.L.); (Y.-T.T.); (Y.-C.D.); (C.-C.W.); (M.-H.Y.)
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity Street, Abassia, Cairo 11566, Egypt; E-Mails: (A.N.B.S.); (M.E.-S.)
| | - Ying-Chi Du
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; E-Mails: (W.-C.L.); (Y.-T.T.); (Y.-C.D.); (C.-C.W.); (M.-H.Y.)
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan 333, Taiwan; E-Mail:
| | - Chin-Chung Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; E-Mails: (W.-C.L.); (Y.-T.T.); (Y.-C.D.); (C.-C.W.); (M.-H.Y.)
| | - Ming-Hong Yen
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; E-Mails: (W.-C.L.); (Y.-T.T.); (Y.-C.D.); (C.-C.W.); (M.-H.Y.)
| | - Ching-Kuo Lee
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei 110, Taiwan; E-Mail:
| | - Ming-Feng Hou
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan; E-Mail:
| | - Yang-Chang Wu
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung 404, Taiwan
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404, Taiwan
- Center for Molecular Medicine, China Medical University Hospital, Taichung 404, Taiwan
- Authors to whom correspondence should be addressed; E-Mails: (Y.-C.W.); (F.-R.C.); Tel.: +886-4-2205-3366-1012 (Y.-C.W.); +886-7-3121-101-2162 (F.-R.C.); Fax: +886-4-2206-0248 (Y.-C.W.); +886-7-3114-773 (F.-R.C.)
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; E-Mails: (W.-C.L.); (Y.-T.T.); (Y.-C.D.); (C.-C.W.); (M.-H.Y.)
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan; E-Mail:
- Authors to whom correspondence should be addressed; E-Mails: (Y.-C.W.); (F.-R.C.); Tel.: +886-4-2205-3366-1012 (Y.-C.W.); +886-7-3121-101-2162 (F.-R.C.); Fax: +886-4-2206-0248 (Y.-C.W.); +886-7-3114-773 (F.-R.C.)
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14
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Huang Y, Chen L, Feng L, Guo F, Li Y. Characterization of total phenolic constituents from the stems of Spatholobus suberectus using LC-DAD-MS(n) and their inhibitory effect on human neutrophil elastase activity. Molecules 2013; 18:7549-56. [PMID: 23807579 PMCID: PMC6269884 DOI: 10.3390/molecules18077549] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 06/25/2013] [Accepted: 06/26/2013] [Indexed: 11/16/2022] Open
Abstract
Spatholobus suberectus Dunn, belonging to the legume family (Fabaceae), has been used as a Traditional Chinese Medicine for the treatment of anemia, menoxenia and rheumatism. A limited number of studies report that various types of flavonoids are the main characteristic constituents of this herb. We have now found that S. suberectus contains about 2% phenolic components and characterized the major phenolic components as homogeneous B-type procyanidin conjugates using a liquid chromatography with diode-array detection-ESI mass spectrometry (LC-DAD/ESI-MS) method. This is the first report on occurrence of most B-type procyanidins in this herb. Moreover, the total phenolics extract was assayed for inhibitory activity on human neutrophil elastase and its IC₅₀ was found to be 1.33 μg/mL.
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Affiliation(s)
| | | | | | - Fujiang Guo
- Authors to whom correspondence should be addressed; E-Mail: (F.G.); (Y.L.); Tel.: +86-21-5132-2181 (F.G.); +86-21-5132-2191 (Y.L.)
| | - Yiming Li
- Authors to whom correspondence should be addressed; E-Mail: (F.G.); (Y.L.); Tel.: +86-21-5132-2181 (F.G.); +86-21-5132-2191 (Y.L.)
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15
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Lin CF, Hwang TL, Chien CC, Tu HY, Lay HL. A new hydroxychavicol dimer from the roots of Piper betle. Molecules 2013; 18:2563-70. [PMID: 23442932 PMCID: PMC6270560 DOI: 10.3390/molecules18032563] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 02/08/2013] [Accepted: 02/21/2013] [Indexed: 02/08/2023] Open
Abstract
A new hydroxychavicol dimer, 2-(g'-hydroxychavicol)-hydroxychavicol (1), was isolated from the roots of Piper betle Linn. along with five known compounds, hydroxychavicol (2), aristololactam A II (3), aristololactam B II (4), piperolactam A (5) and cepharadione A (6). The structures of these isolated compounds were elucidated by spectroscopic methods. Compounds 1 and 2 exhibited inhibitory effects on the generation of superoxide anion and the release of elastase by human neutrophils.
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Affiliation(s)
- Chwan-Fwu Lin
- Department of Cosmetic Science, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan; E-Mail:
- Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan
| | - Tsong-Long Hwang
- Cell Pharmacology Laboratory, Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; E-Mail:
- Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 333, Taiwan
| | - Chun-Chien Chien
- Department of Dentistry, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; E-Mail:
| | - Huei-Yu Tu
- Department of Plant Industry, National Pingtung University of Science and Technolog, Pingtung 912, Taiwan; E-Mail:
| | - Horng-Liang Lay
- Department of Plant Industry, National Pingtung University of Science and Technolog, Pingtung 912, Taiwan; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +886-8-774-0365; Fax: +886-8-774-0415
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16
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Katkar KV, Suthar AC, Chauhan VS. The chemistry, pharmacologic, and therapeutic applications of Polyalthia longifolia. Pharmacogn Rev 2012; 4:62-8. [PMID: 22228943 PMCID: PMC3249904 DOI: 10.4103/0973-7847.65329] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2010] [Revised: 04/20/2010] [Accepted: 07/10/2010] [Indexed: 11/26/2022] Open
Abstract
Medicinal plants are nature's gift to human beings to lead a disease-free, healthy life. They play a vital role in preserving our health. India is one of the most medicoculturally diverse countries in the world, where the medicinal plant sector is part of a time-honored tradition that is respected even today. Medicinal plants are believed to be much safer and proved as elixir in the treatment of various ailments. In our country, more than 2000 medicinal plants are recognized. Polyalthia longifolia cv. pendula (Annonaceae) is native to the drier regions of India and is locally known as “Ashoka” and is commonly cultivated in Pakistan and Sri Lanka. This plant is used as an antipyretic agent in indigenous systems of medicine. Pharmacologic studies on the bark and leaves of this plant show effective antimicrobial activity, cytotoxic function, antiulcer activity, hypoglycemic activity, and hypotensive effect. The present article includes the detailed exploration of pharmacologic properties of P. longifolia in an attempt to provide a direction for further research.
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Affiliation(s)
- K V Katkar
- Department of Herbal, Piramal Life Sciences Limited, 1, Nirlon Complex, Off. Western Express Highway, Goregaon (E), Mumbai, Maharashtra, India
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17
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Wu SF, Chang FR, Wang SY, Hwang TL, Lee CL, Chen SL, Wu CC, Wu YC. Anti-inflammatory and cytotoxic neoflavonoids and benzofurans from Pterocarpus santalinus. JOURNAL OF NATURAL PRODUCTS 2011; 74:989-996. [PMID: 21488654 DOI: 10.1021/np100871g] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Five new benzofurans, pterolinuses A-E (1-5), six new neoflavonoids, pterolinuses F-J (8-13), and five known compounds (6, 7, 14-16) were isolated from an extract of Pterocarpus santalinus heartwood. All new structures were elucidated by spectroscopic methods, and configurations were confirmed by CD spectral data and optical rotation values. The isolates were evaluated for anti-inflammatory and cytotoxic activities. Six compounds (1, 2, 4, 6, 7, and 15) showed significant inhibition in at least one anti-inflammatory assay. Compound 2 showed the best selective effect against superoxide anion generation in human neutrophils with, an IC50 value of 0.19 μg/mL, and was 6.2-fold more potent than the positive control LY294002. Compound 14 showed the highest cytotoxicity against Ca9-22 cancer cells, with an IC50 value of 0.46 μg/mL.
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Affiliation(s)
- Shou-Fang Wu
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan, Republic of China
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18
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Yang ML, Kuo PC, Hwang TL, Chiou WF, Qian K, Lai CY, Lee KH, Wu TS. Synthesis, in vitro anti-inflammatory and cytotoxic evaluation, and mechanism of action studies of 1-benzoyl-β-carboline and 1-benzoyl-3-carboxy-β-carboline derivatives. Bioorg Med Chem 2011; 19:1674-82. [PMID: 21316977 DOI: 10.1016/j.bmc.2011.01.034] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Revised: 01/06/2011] [Accepted: 01/16/2011] [Indexed: 11/15/2022]
Abstract
In the present study, various 1-substituted and 1,3-disubstituted β-carboline derivatives were synthesized by a modified single-step Pictet-Spengler reaction. The compounds were examined for cytotoxicity and anti-inflammatory activity, as measured by the inhibition of prostaglandin E(2) (PGE(2)) production and nitric oxide (NO) production. While only two compounds (28 and 31) showed marginal cytotoxicity against four human cancer cell lines, most of the tested compounds exhibited potent inhibitory activity of both NO and PGE(2) production. Moreover, compounds 6 and 16 significantly reduced the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase 2 (COX2), suggesting that β-carboline analogs can inhibit NO and PGE(2) production at the translational level. In addition, several of the β-carboline derivatives (1, 2, 4-8, 11, 13, 22, 25, 27, 31, and 41-43) displayed significant inhibitory activity of superoxide anion (O(2)(·-)) generation or elastase release compared to the reference compound, with 6 being the most potent. N-Formyl-L-methionyl-phenylalanine (FMLP)-induced phosphorylation of c-JunN-terminal kinase (JNK) and protein kinase B (AKT) were also inhibited by 6, suggesting that it suppresses human neutrophil functions by inhibiting the activation of JNK and AKT signaling pathways. Therefore, the synthetic 1-benzoyl-3-carboxy β-carboline analogs may have great potential to be developed as anti-inflammatory agents.
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Affiliation(s)
- Mei-Lin Yang
- Department of Chemistry, National Cheng Kung University, Tainan, Taiwan, ROC
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19
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Modulation of gene expression by Polyalthia longifolia in postmenopausal women with coronary artery disease: an in vitro study. J Cardiovasc Transl Res 2009; 3:570-9. [PMID: 20559769 DOI: 10.1007/s12265-009-9162-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2009] [Accepted: 12/07/2009] [Indexed: 10/20/2022]
Abstract
Chronic underlying inflammation is involved in the pathophysiology of coronary artery disease (CAD). Polyalthia longifolia var. pendula bark extract (PLE) is known to exhibit anti-inflammatory activity and has high content of phytosteroids. Since phytosteroids mimic estrogen structurally, we postulated that PLE may provide protection in postmenopausal women against CAD. Thus the effect of PLE has been explored on expression of estrogen receptors (ERalpha and ERbeta) and inflammatory inducible nitric oxide synthase (iNOS) genes in vitro in peripheral blood mononuclear cells (PBMCs) obtained from postmenopausal women. A total of 20 postmenopausal women were included in the present study. Group I (N = 10) included women with angiographically proven CAD, and group II (N = 10) is composed of equal number of age-matched healthy postmenopausal females as controls. Significantly low levels of serum 17-beta estradiol were observed in subjects of group I as compared to group II (p < 0.01). A marked increase in L: -citrulline levels (p > 0.05) and significantly augmented levels of reactive nitrogen intermediates (p < 0.05) were observed in group I subjects. PLE significantly attenuated PMA-induced expression of both ERalpha and ERbeta receptors and inflammatory iNOS gene in vitro in a dose- and time-dependent manner and had an additive effect on these genes when compared with tamoxifen. Ours is the first report to demonstrate that PLE contains certain bioactive principles, which possess anti-inflammatory and estrogenic properties, and thereby hold the promise to be screened for their anti-atherogenic potential in experimental animals to favorably alter several other markers of cardiovascular risk.
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Antitumor agents. 271: total synthesis and evaluation of brazilein and analogs as anti-inflammatory and cytotoxic agents. Bioorg Med Chem Lett 2009; 20:1037-9. [PMID: 20036537 DOI: 10.1016/j.bmcl.2009.12.041] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Revised: 12/08/2009] [Accepted: 12/10/2009] [Indexed: 11/20/2022]
Abstract
The first total synthesis of the naturally occurring tetracyclic homoisoflavonoid brazilein (1) and 14 new analogs (1a-n) is reported. Target compounds and intermediates were assayed for anti-inflammatory effects on superoxide anion generation and elastase release by human neutrophils in response to fMLP/CB, and for cytotoxic activity against nasopharyngeal (KB), vincristine-resistant nasopharyngeal (KBvin), lung (A549) and prostate (DU-145) human cancer cell lines. The most active compound 1b showed potent effects on superoxide anion generation and elastase release with IC(50) values of 1.2 and 1.9 microM, respectively, and was 65 times more potent than phenylmethylsulfonyl fluoride (PMSF), the positive control, in the latter assay. Additionally, 1b exhibited broad spectrum in vitro anticancer activity with IC(50) values of 6-11 microM against the four tested cancer cell lines.
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Huang YC, Hwang TL, Chang CS, Yang YL, Shen CN, Liao WY, Chen SC, Liaw CC. Anti-inflammatory flavonoids from the rhizomes of Helminthostachys zeylanica. JOURNAL OF NATURAL PRODUCTS 2009; 72:1273-1278. [PMID: 19583252 DOI: 10.1021/np900148a] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Eight new prenylated flavonoids, ugonins M-T (1-8), together with five known compounds, ugonins J-L (9-11), 5,4'-dihydroxy-4'',4''-dimethyl-5''-methyl-5''H-dihydrofurano[2'',3'':6,7]flavanone, and quercetin, were isolated and purified from the rhizomes of Helminthostachys zeylanica. The structures of the new isolates were elucidated by spectroscopic and chemical methods. Compounds 1, 3, 5, 7, 8, and 11 showed inhibition of superoxide anion generation and elastase release by human neutrophils in response to formyl-l-methionyl-l-leucyl-l-phenylalanine/cytochalasin B (FMLP/CB).
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Affiliation(s)
- Yaun-Chao Huang
- Graduate Institute of Pharmaceutical Chemistry, College of Pharmacy, China Medical University, Taichung 404, Taiwan, Republic of China
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Hsieh PW, Hsu LC, Lai CH, Wu CC, Hwang TL, Lin YK, Wu YC. Evaluation of the bioactivities of extracts of endophytes isolated from Taiwanese herbal plants. World J Microbiol Biotechnol 2009. [DOI: 10.1007/s11274-009-0036-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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