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Zhao X, Zheng Z, Chen C, Wang H, Liu H, Li J, Sun C, Lou H, Pan W. New clerodane diterpenoids from Callicarpa pseudorubella and their antitumor proliferative activity. Fitoterapia 2024; 174:105878. [PMID: 38417683 DOI: 10.1016/j.fitote.2024.105878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/19/2024] [Accepted: 02/25/2024] [Indexed: 03/01/2024]
Abstract
Six previously undescribed clerodane diterpenes, cardorubellas A-F (1-6), along with seven known ones (7-13), were isolated from the aerial parts of Callicarpa pseudorubella. Their chemical structures were established by analysis of 1D and 2D NMR, HR-ESI-MS, X-ray diffraction, and electronic circular dichroism (ECD) data. Notably, cardorubella B (2) represented the first examples of naturally occurring succinic anhydride-containing clerodane diterpenes derivatives. The anti-proliferative activities of these compounds were assessed. Remarkably, compound 2 exhibited comparable inhibitory activity against HEL cell lines, surpassing the positive control with an IC50 value of 14.01 ± 0.77 μM, compared to 17.02 ± 4.70 μM for 5-fluorouracil.
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Affiliation(s)
- Xing Zhao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
| | - Zhaopeng Zheng
- Department of Oncology, Guizhou Provincial People's Hospital, Guiyang 550005, China
| | - Chao Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; Natural Products Research Center of Guizhou Province, Guiyang 550014, China
| | - Huan Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
| | - Hanfei Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; Natural Products Research Center of Guizhou Province, Guiyang 550014, China
| | - Jinyu Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; Natural Products Research Center of Guizhou Province, Guiyang 550014, China
| | - Chao Sun
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; Natural Products Research Center of Guizhou Province, Guiyang 550014, China.
| | - Huayong Lou
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; Natural Products Research Center of Guizhou Province, Guiyang 550014, China.
| | - Weidong Pan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China.
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2
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Song JQ, Yang KC, Fan XZ, Deng L, Zhu YL, Zhou H, Huang YS, Kong XQ, Zhang LJ, Liao HB. Clerodane diterpenoids with in-vitro anti-neuroinflammatory activity from the tuberous root of Tinospora sagittata (Menispermaceae). Phytochemistry 2024; 218:113932. [PMID: 38056516 DOI: 10.1016/j.phytochem.2023.113932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 11/19/2023] [Accepted: 11/20/2023] [Indexed: 12/08/2023]
Abstract
Twenty-six clerodane diterpenoids have been isolated from T. sagittata, a plant species of traditional Chinese medicine Radix Tinosporae, also named as "Jin Guo Lan". Among them, there are eight previously undescribed clerodane diterpenoids (tinotanoids A-H: 1-8), and 18 known diterpenoids (9-26). The absolute configurations of compounds 1, 2, 5, 8, 13, 17 and 20 were determined by single-crystal X-ray diffraction. Compound 1 is the first example of rotameric clerodane diterpenoid with a γ-lactone ring which is constructed between C-11 and C-17; meanwhile, compounds 3 and 4 are two pairs of inseparable epimers. Compounds 2, 12 and 17 demonstrated excellent inhibitory activity on NO production against LPS-stimulated BV-2 cells with IC50 values of 9.56 ± 0.69, 9.11 ± 0.53 and 11.12 ± 0.70 μM, respectively. These activities were significantly higher than that of the positive control minocycline (IC50 = 23.57 ± 0.92 μM). Moreover, compounds 2, 12 and 17 dramatically reduced the LPS-induced upregulation of iNOS and COX-2 expression. Compounds 2 and 12 significantly inhibited the levels of pro-inflammatory cytokines TNF-α, IL-1β and IL-6 that were increased by LPS stimulation.
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Affiliation(s)
- Jia-Qi Song
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Kai-Cheng Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Xian-Zhe Fan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Li Deng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Yang-Li Zhu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Hong Zhou
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 563000, China
| | - Ya-Si Huang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 563000, China
| | - Xiang-Qian Kong
- GuangZhou Institutes of Biomedicine and Health, Chinese Academy of Science, Guangzhou, 510530, China
| | - Li-Jun Zhang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China.
| | - Hai-Bing Liao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China.
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Bozsó Z, Lapat V, Ott PG, Móricz ÁM. Disparate Effects of Two Clerodane Diterpenes of Giant Goldenrod ( Solidago gigantea Ait.) on Bacillus spizizenii. Int J Mol Sci 2024; 25:1531. [PMID: 38338810 PMCID: PMC10855248 DOI: 10.3390/ijms25031531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/21/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
New substances with antimicrobial properties are needed to successfully treat emerging human, animal, or plant pathogens. Seven clerodane diterpenes, previously isolated from giant goldenrod (Solidago gigantea) root, were tested against Gram-positive Bacillus subtilis, Bacillus spizizenii and Rhodococcus fascians by measuring minimal bactericidal concentration (MBC), minimal inhibitory concentration (MIC) and half-maximal inhibitory concentration (IC50). Two of them, Sg3a (a dialdehyde) and Sg6 (solidagoic acid B), were proved to be the most effective and were selected for further study. Bacillus spizizenii was incubated with the two diterpenes for shorter (1 h) or longer (5 h) periods and then subjected to genome-wide transcriptional analyses. Only a limited number of common genes (28 genes) were differentially regulated after each treatment, and these were mainly related to the restoration of cell membrane integrity and to membrane-related transports. Changes in gene activity indicated that, among other things, K+ and Na+ homeostasis, pH and membrane electron transport processes may have been affected. Activated export systems can be involved in the removal of harmful molecules from the bacterial cells. Inhibition of bacterial chemotaxis and flagellar assembly, as well as activation of genes for the biosynthesis of secondary metabolites, were observed as a general response. Depending on the diterpenes and the duration of the treatments, down-regulation of the protein synthesis-related, oxidative phosphorylation, signal transduction and transcription factor genes was found. In other cases, up-regulation of the genes of oxidation-reduction processes, sporulation and cell wall modification could be detected. Comparison of the effect of diterpenes with the changes induced by different environmental and nutritional conditions revealed several overlapping processes with stress responses. For example, the Sg6 treatment seems to have caused a starvation-like condition. In summary, there were both common and diterpene-specific changes in the transcriptome, and these changes were also dependent on the length of treatments. The results also indicated that Sg6 exerted its effect more slowly than Sg3a, but ultimately its effect was greater.
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Affiliation(s)
| | | | | | - Ágnes M. Móricz
- Plant Protection Institute, HUN-REN Centre for Agricultural Research, Herman Ottó Str. 15, H-1022 Budapest, Hungary; (Z.B.); (P.G.O.)
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Kabbashi AS, Sattar MA, Aamer M, Siddiqui NN, Kamran M, Fayaz A, Jahan H, Khan FA, Wang Y. Clerodane Furanoditerpenoids from Tinospora bakis (A.Rich.) Miers (Menispermaceae). Molecules 2023; 29:154. [PMID: 38202737 PMCID: PMC10780120 DOI: 10.3390/molecules29010154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/13/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Tinospora bakis (A.Rich.) Miers (Menispermaceae) has traditionally been used to alleviate headaches, rheumatism, mycetoma, and diabetes, among others. Despite its extensive use, the active components of the plant have never been investigated. In this work, a series of furanoditerpenoids (1-18) and five compounds from other classes (19-23) were isolated from T. bakis. Notably, two new compounds were discovered and named: tinobakisin (1) and tinobakiside (10). Their molecular structures were elucidated with NMR, MS, UV, IR, and ECD spectra. Additionally, known compounds (2-9 and 11-23) were corroboratively identified through spectral comparisons with previously reported data, while highlighting and addressing some inaccuracies in the prior literature. Remarkably, compounds 6, 7, 13, and 17 exhibited a superior anti-glycation effect, outperforming established agents like rutin and quercetin in a lab model of protein glycation with glucose. The overall findings suggest that furanoditerpenoids play a crucial role in the antidiabetic properties of T. bakis. This research marks the first comprehensive phytochemical investigation of T. bakis, opening the door for further investigation into furanoditerpenoids and their biological mechanisms.
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Affiliation(s)
- Ahmed Saeed Kabbashi
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
- Department of Microbiology, Faculty of Pure and Applied Sciences, International University of Africa, Khartoum 12223, Sudan
| | - Maazah Abdul Sattar
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
| | - Muhammad Aamer
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
| | - Nimra Naz Siddiqui
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (N.N.S.); (H.J.)
| | - Muhammad Kamran
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
| | - Aneela Fayaz
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
| | - Humera Jahan
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (N.N.S.); (H.J.)
| | - Farooq-Ahmad Khan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
- Third World Center (TWC) for Chemical Sciences, International Center for Chemical & Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Yan Wang
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
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5
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Linphosan C, Uk-At S, Setsuwan P, Srisupattanakul P, Boonyarat C, Poopasit K, Limtragool OA. A New Clerodane from the Leaves of Croton krabas and Its Cholinesterase Inhibitory Activities. Chem Biodivers 2023; 20:e202301309. [PMID: 37926685 DOI: 10.1002/cbdv.202301309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/30/2023] [Accepted: 11/04/2023] [Indexed: 11/07/2023]
Abstract
Chromatographic separation of the leaves of Croton krabas resulted in the isolation of one new clerodane, crotoeurin D (1), along with two known compounds, 6S-crotoeurin C (2) and blumenol A (3). Their structures were determined based on extensive nuclear magnetic resonance spectroscopic data analysis and mass spectrometry. The absolute configuration of the new clerodane was assigned by nuclear overhauser effect spectroscopy correlations and electronic circular dichroism calculations. Compound 1 exhibited significant acetylcholinesterase and butyrylcholinesterase inhibitory activities. Moreover, the binding modes of 1 revealed that its structure formed strong hydrogen bonds and hydrophobic interactions with the active sites of both enzymes.
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Affiliation(s)
- Chaiwat Linphosan
- Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham
| | - Sunita Uk-At
- Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham
| | - Phiraphon Setsuwan
- Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham
| | - Pattanasak Srisupattanakul
- Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham
| | - Chantana Boonyarat
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | - Kitisak Poopasit
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Oue-Artorn Limtragool
- Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham
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Zeb MA, Ding L, Wang MR, Tu WC, Li XL, Zhang XJ, Xiao WL. Three New Clerodane Diterpenoids and Their NLRP3 Inflammasome Activation Inhibitory Activity from Callicarpa arborea Roxb. Chem Biodivers 2023; 20:e202301676. [PMID: 37971960 DOI: 10.1002/cbdv.202301676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/14/2023] [Accepted: 11/16/2023] [Indexed: 11/19/2023]
Abstract
Three new compounds callicarpenoids A-C (1-3), were isolated from the stems of Callicarpa arborea Roxb together with fifteen known compounds (4-18). The structures of these compounds were elucidated using advanced spectroscopic techniques, including 1D and 2D NMR, UV, IR, HR-ESI-MS, ECD, ORD, and quantum chemical calculations. Compound 3, a rare rearranged diterpenoid with a fused 5/6-ring system demonstrated strong potential as an inhibitor of the NLRP3 inflammasome activation with an IC50 value of 3.153 μM. It effectively reduced GSDMD-NT production, inhibited caspase-1 activation, and suppressed IL-1β secretion, thereby mitigating NLRP3 inflammasome-induced pyroptosis in J774A.1 cells. These findings suggest that compound 3 warrants further research and development as a promising NLRP3 inflammasome inhibitor.
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Affiliation(s)
- Muhammad Aurang Zeb
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Centre for Natural Products, School of Chemical Science and Technology and School of Pharmacy, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, P. R. China
| | - Ling Ding
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Centre for Natural Products, School of Chemical Science and Technology and School of Pharmacy, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, P. R. China
| | - Meng-Ru Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Centre for Natural Products, School of Chemical Science and Technology and School of Pharmacy, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, P. R. China
| | - Wen-Chao Tu
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Centre for Natural Products, School of Chemical Science and Technology and School of Pharmacy, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, P. R. China
| | - Xiao-Li Li
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Centre for Natural Products, School of Chemical Science and Technology and School of Pharmacy, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, P. R. China
| | - Xing-Jie Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Centre for Natural Products, School of Chemical Science and Technology and School of Pharmacy, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, P. R. China
| | - Wei-Lie Xiao
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Centre for Natural Products, School of Chemical Science and Technology and School of Pharmacy, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, P. R. China
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Nhoek P, An CY, Son MG, Chae HS, Pel P, Kim YM, Khiev P, Choi WJ, Choi YH, Chin YW. Stereochemical assignment of clerodane-type diterpenes from the fruits of Casearia grewiifolia and their ability to inhibit PCSK9 expression. Phytochemistry 2023; 216:113864. [PMID: 37748701 DOI: 10.1016/j.phytochem.2023.113864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 09/14/2023] [Accepted: 09/16/2023] [Indexed: 09/27/2023]
Abstract
More than 20 natural products have been reported to modulate PCSK9-mediated cholesterol regulation, and small-molecule-derived proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors continue to be developed and identified. Here, twelve undescribed clerodane-type diterpenes (1-9 and 12-14) and two known compounds were isolated from the chloroform-soluble extract of the dried fruits of Casearia grewiifolia Vent. using a PCSK9 mRNA expression monitoring assay. Among the undescribed compounds, the stereochemistry of two diastereomeric grewiifolins A and B (1 and 2) were extensively elucidated using 2D Nuclear Overhauser Effect Spectroscopy (NOESY) experiments, excitation-sculptured indirect detection experiments (EXSIDE), interproton distance analyses, and computational calculations that included quantum chemical shift calculations combined with DP4+ analysis. All isolates were assessed for their inhibitory activity against PCSK9 and IDOL mRNA expression. Among the compounds tested, compound 3 inhibited PCSK9 and IDOL mRNA expression.
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Affiliation(s)
- Piseth Nhoek
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Chae-Yeong An
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Min-Gyung Son
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Hee-Sung Chae
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Pisey Pel
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Young-Mi Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Piseth Khiev
- Royal University of Phnom Penh, Department of Biology, Russian Federation Boulevard, Khan Toul Kork, Phnom Penh 12156, Cambodia
| | - Won Jun Choi
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Gyeonggi-do 10326, Republic of Korea
| | - Young Hee Choi
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Gyeonggi-do 10326, Republic of Korea
| | - Young-Won Chin
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea.
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Zhu YL, Deng L, Dai XY, Song JQ, Zhu Y, Liu T, Kong XQ, Zhang LJ, Liao HB. Tinopanoids K-T, clerodane diterpenoids with anti-inflammatory activity from Tinospora crispa. Bioorg Chem 2023; 140:106812. [PMID: 37651894 DOI: 10.1016/j.bioorg.2023.106812] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/20/2023] [Accepted: 08/22/2023] [Indexed: 09/02/2023]
Abstract
A total of 17 structurally diverse clerodane diterpenoids, including ten undescribed clerodane diterpenoids (tinopanoids K-T, 1-10) and seven known compounds (11-17), were isolated from the vines and leaves of Tinospora crispa. Compound 3 has not only bear the dominant substituents of γ-hydroxy-α, β-unsaturated-γ-lactone with anti-inflammatory activity, but also a ternary epoxy structure at C-3/C-4. The planar structures and relative configurations of the clerodane diterpenoids were elucidated by spectroscopic data interpretation. The absolute configurations of compounds 1, 4, 8 and 13 were determined by single-crystal X-ray crystallographic, while that of compound 3 was determined using computed ECD data and single crystal X-ray diffraction of related p-bromobenzoate ester (3a). Subsequently, all compounds were evaluated for their inhibitory effect on nitric oxide (NO) production of LPS-activated BV-2 cells, and compounds 3 and 8 exhibited better NO inhibitory potency, with IC50 values of 5.6 and 13.8 μM than the positive control minocycline (Mino, IC50 = 22.9 μM). The corresponding results of western blot analysis and qRT-PCR revealed that compound 3 can significantly inhibit the inducible nitric oxide synthase (iNOS) and cyclooxygenase 2 (COX-2) protein expressions, mRNA levels of pro-inflammatory cytokins of tumor necrosis factor-α (TNF-α), interleukin 6 (IL-6) and interleukin 1β (IL-1β). The underlying mechanism by which compound 3 exerted anti-neuroinflammatory effects was investigated by western blot and immunofluorescence assay, which suggested compound 3 inhibited LPS induced neuroinflammation via the suppression of toll-like receptor 4 (TLR4) dependent Signal Transducer and Activator of Transcription 3 (Stat3) and mitogen-activated protein kinase (MAPK) signaling pathways, and the activation of Heme Oxygenase-1 (HO-1) mediated signals.
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Affiliation(s)
- Yang-Li Zhu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Li Deng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Xin-Yan Dai
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Jia-Qi Song
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Yan Zhu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Ting Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Xiang-Qian Kong
- GuangZhou Institutes of Biomedicine and Health, Chinese Academy of Science, Guangzhou 510530, China
| | - Li-Jun Zhang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
| | - Hai-Bing Liao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
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Ren X, Yuan X, Jiao SS, He XP, Hu H, Kang JJ, Luo SH, Liu Y, Guo K, Li SH. Clerodane diterpenoids from the Uygur medicine Salvia deserta with immunosuppressive activity. Phytochemistry 2023; 214:113823. [PMID: 37579813 DOI: 10.1016/j.phytochem.2023.113823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/22/2023] [Accepted: 08/10/2023] [Indexed: 08/16/2023]
Abstract
Six undescribed clerodane diterpenoids along with five known ones were isolated from the aerial parts of Salvia deserta, a traditional Uygur medicine. Their chemical structures including absolute configurations were elucidated by extensive spectroscopic analysis (including 1D and 2D NMR, HRESIMS, and IR), combined with calculated ECD method and single-crystal X-ray diffraction analysis. All the compounds possessed a terminal α,β-unsaturated-γ-lactone moiety, and were assayed for their immunosuppressive activity via inhibiting the secretion of cytokines TNF-α and IL-6 in macrophages RAW264.7. Among them, (5R,8R,9S,10R)-18-nor-cleroda-2,13-dien-16,15-olide-4-one obviously suppressed the secretion of TNF-α and IL-6 with IC50 values of 8.55 and 13.65 μM, respectively.
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Affiliation(s)
- Xue Ren
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Xin Yuan
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Shan-Shan Jiao
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Xiao-Ping He
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Hong Hu
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Juan-Juan Kang
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Shi-Hong Luo
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Yan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Kai Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China.
| | - Sheng-Hong Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China.
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10
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Peng X, Tan Q, Zhang Z, Wu D, Xu J, Zhou H, Gu Q. Discovery of neo-Clerodane Diterpenoids from Ajuga campylantha as Neuroprotective Agents against Ferroptosis and Neuroinflammation. J Nat Prod 2023; 86:2006-2021. [PMID: 37566645 DOI: 10.1021/acs.jnatprod.3c00447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/13/2023]
Abstract
Twelve new neo-clerodane diterpenoids, eight undescribed methoxy/ethoxy acetal analogues, and one new nor-iridane monoterpenoid were isolated from Ajuga campylantha. Their structures were elucidated using a combination of spectroscopic data, quantum chemical calculations, and X-ray crystallography. This research reveals the distinctive structural features of A. campylantha diterpenes, including distinct C rings and 4,18-double bonds, distinguishing them from diterpenes of other plants in the Ajuga genus. Compound 2 represents the first example of a 19(5→6)-abeo-clerodane formed through a Wagner-Meerwein rearrangement. The isolated compounds were assessed for their neuroprotective effects against RSL3-induced ferroptosis in HT22 cells and LPS-induced neuroinflammation in BV-2 cells. Notably, compound 7 inhibits ferroptosis (EC50 = 10 μM) with a potentially new mechanism of action. The preliminary structure-activity relationship studies revealed that the furan-clerodane diterpenoids possess potential ferroptosis inhibitory activity, while the lactone-clerodanes do not. This study represents the first report of furan-containing clerodanes within the Ajuga genus, providing fresh insights into the phytochemistry and pharmacological potential of A. campylantha.
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Affiliation(s)
- Xing Peng
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Qingyun Tan
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Zhikang Zhang
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Deyin Wu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Huihao Zhou
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
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11
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Ledoux A, Hamann C, Bonnet O, Jullien K, Quetin-Leclercq J, Tchinda A, Smadja J, Gauvin-Bialecki A, Maquoi E, Frédérich M. Bioactive Clerodane Diterpenoids from the Leaves of Casearia coriacea Vent. Molecules 2023; 28:molecules28031197. [PMID: 36770864 PMCID: PMC9918898 DOI: 10.3390/molecules28031197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 01/27/2023] Open
Abstract
Casearia coriacea Vent., an endemic plant from the Mascarene Islands, was investigated following its antiplasmodial potentialities highlighted during a previous screening. Three clerodane diterpene compounds were isolated and identified as being responsible for the antiplasmodial activity of the leaves of the plant: caseamembrin T (1), corybulosin I (2), and isocaseamembrin E (3), which exhibited half maximal inhibitory concentrations (IC50) of 0.25 to 0.51 µg/mL. These compounds were tested on two other parasites, Leishmania mexicana mexicana and Trypanosoma brucei brucei, to identify possible selectivity in one of them. Although these products possess both antileishmanial and antitrypanosomal properties, they displayed selectivity for the malaria parasite, with a selectivity index between 6 and 12 regarding antitrypanosomal activity and between 25 and 100 regarding antileishmanial activity. These compounds were tested on three cell lines, breast cancer cells MDA-MB-231, pulmonary adenocarcinoma cells A549, and pancreatic carcinoma cells PANC-1, to evaluate their selectivity towards Plasmodium. This has not enabled us to establish selectivity for Plasmodium, but has revealed the promising activity of compounds 1-3 (IC50 < 2 µg/mL), particularly against pancreatic carcinoma cells (IC50 < 1 µg/mL). The toxicity of the main compound, caseamembrin T (1), was then evaluated on zebrafish embryos to extend our cytotoxicity study to normal, non-cancerous cells. This highlighted the non-negligible toxicity of caseamembrin T (1).
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Affiliation(s)
- Allison Ledoux
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
- Correspondence: ; Tel.: +32-4366-43-90
| | - Carla Hamann
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
- Laboratory of Biology of Tumor and Development, GIGA/CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Olivier Bonnet
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Kateline Jullien
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Joëlle Quetin-Leclercq
- Pharmacognosy Research Group, Louvain Drug Research Institute, LDRI, Université Catholique de Louvain, UCLouvain, Avenue E. Mounier, B1 72.03, B-1200 Brussels, Belgium
| | - Alembert Tchinda
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Jacqueline Smadja
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Université de Réunion, Avenue René Cassin 15, BP 7151, 97715 Saint-Denis, La Réunion, France
| | - Anne Gauvin-Bialecki
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Université de Réunion, Avenue René Cassin 15, BP 7151, 97715 Saint-Denis, La Réunion, France
| | - Erik Maquoi
- Laboratory of Biology of Tumor and Development, GIGA/CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Michel Frédérich
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
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12
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Bi DW, Xiong F, Cheng B, Zhou YL, Zeb MA, Tang P, Pang WH, Zhang RH, Li XL, Zhang XJ, Xiao WL. Callintegers A and B, Unusual Tricyclo[4.4.0.0 9,10]tetradecane Clerodane Diterpenoids from Callicarpa integerrima with Inhibitory Effects on NLRP3 Inflammasome Activation. J Nat Prod 2022; 85:2675-2681. [PMID: 36286259 DOI: 10.1021/acs.jnatprod.2c00568] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Callintegers A (1) and B (2), unprecedented clerodane norditerpenoids based on a novel carbon skeleton, were isolated from Callicarpa integerrima. Compounds 1 and 2 possess a novel 6/6/6-fused tricyclic ring system. Their structures and absolute configurations were determined by quantum chemical calculations, spectroscopic analysis, and single-crystal X-ray diffraction methods. Biological evaluation showed that compound 2 inhibited IL-1β secretion in a dose-dependent manner with an IC50 value of 5.5 ± 3.2 μM. Caspase-1 maturation and IL-1β secretion were also reduced, indicating that compound 2 impaired NLRP3 inflammasome activation.
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Affiliation(s)
- De-Wen Bi
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology and School of Medicine, Yunnan University, Kunming 650500, People's Republic of China
| | - Feng Xiong
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology and School of Medicine, Yunnan University, Kunming 650500, People's Republic of China
| | - Bin Cheng
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology and School of Medicine, Yunnan University, Kunming 650500, People's Republic of China
| | - Ya-Ling Zhou
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology and School of Medicine, Yunnan University, Kunming 650500, People's Republic of China
| | - Muhammad Aurang Zeb
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology and School of Medicine, Yunnan University, Kunming 650500, People's Republic of China
| | - Peng Tang
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology and School of Medicine, Yunnan University, Kunming 650500, People's Republic of China
| | - Wen-Hui Pang
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology and School of Medicine, Yunnan University, Kunming 650500, People's Republic of China
| | - Rui-Han Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology and School of Medicine, Yunnan University, Kunming 650500, People's Republic of China
| | - Xiao-Li Li
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology and School of Medicine, Yunnan University, Kunming 650500, People's Republic of China
| | - Xing-Jie Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology and School of Medicine, Yunnan University, Kunming 650500, People's Republic of China
| | - Wei-Lie Xiao
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology and School of Medicine, Yunnan University, Kunming 650500, People's Republic of China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, People's Republic of China
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13
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Dai X, Sun F, Deng K, Lin G, Yin W, Chen H, Yang D, Liu K, Zhang Y, Huang L. Mallotucin D, a Clerodane Diterpenoid from Croton crassifolius, Suppresses HepG2 Cell Growth via Inducing Autophagic Cell Death and Pyroptosis. Int J Mol Sci 2022; 23:ijms232214217. [PMID: 36430694 PMCID: PMC9698996 DOI: 10.3390/ijms232214217] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/07/2022] [Accepted: 11/11/2022] [Indexed: 11/19/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a major subtype of primary liver cancer with a high mortality rate. Pyroptosis and autophagy are crucial processes in the pathophysiology of HCC. Searching for efficient drugs targeting pyroptosis and autophagy with lower toxicity is useful for HCC treatment. Mallotucin D (MLD), a clerodane diterpenoid from Croton crassifolius, has not been previously reported for its anticancer effects in HCC. This study aims to evaluate the inhibitory effects of MLD in HCC and explore the underlying mechanism. We found that the cell proliferation, DNA synthesis, and colony formation of HepG2 cells and the angiogenesis of HUVECs were all greatly inhibited by MLD. MLD caused mitochondrial damage and decreased the TOM20 expression and mitochondrial membrane potential, inducing ROS overproduction. Moreover, MLD promoted the cytochrome C from mitochondria into cytoplasm, leading to cleavage of caspase-9 and caspase-3 inducing GSDMD-related pyroptosis. In addition, we revealed that MLD activated mitophagy by inhibiting the PI3K/AKT/mTOR pathway. Using the ROS-scavenging reagent NAC, the activation effects of MLD on pyroptosis- and autophagy-related pathways were all inhibited. In the HepG2 xenograft model, MLD effectively inhibited tumor growth without detectable toxicities in normal tissue. In conclusion, MLD could be developed as a candidate drug for HCC treatment by inducing mitophagy and pyroptosis via promoting mitochondrial-related ROS production.
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Affiliation(s)
- Xiaoyong Dai
- Precision Medicine and Healthcare Research Center, Center for Biotechnology and Biomedicine, Shenzhen Key Laboratory of Gene and Antibody Therapy, State Key Laboratory of Chemical Oncogenomics, State Key Laboratory of Health Sciences and Technology, Tsinghua-Berkeley Shenzhen Institute (TBSI), Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Fen Sun
- Precision Medicine and Healthcare Research Center, Center for Biotechnology and Biomedicine, Shenzhen Key Laboratory of Gene and Antibody Therapy, State Key Laboratory of Chemical Oncogenomics, State Key Laboratory of Health Sciences and Technology, Tsinghua-Berkeley Shenzhen Institute (TBSI), Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Kexin Deng
- Precision Medicine and Healthcare Research Center, Center for Biotechnology and Biomedicine, Shenzhen Key Laboratory of Gene and Antibody Therapy, State Key Laboratory of Chemical Oncogenomics, State Key Laboratory of Health Sciences and Technology, Tsinghua-Berkeley Shenzhen Institute (TBSI), Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Gaoyang Lin
- Precision Medicine and Healthcare Research Center, Center for Biotechnology and Biomedicine, Shenzhen Key Laboratory of Gene and Antibody Therapy, State Key Laboratory of Chemical Oncogenomics, State Key Laboratory of Health Sciences and Technology, Tsinghua-Berkeley Shenzhen Institute (TBSI), Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Wenjing Yin
- Guangdong Clinical Translational Center for Targeted Drug, Department of Pharmacology, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Huaqing Chen
- Precision Medicine and Healthcare Research Center, Center for Biotechnology and Biomedicine, Shenzhen Key Laboratory of Gene and Antibody Therapy, State Key Laboratory of Chemical Oncogenomics, State Key Laboratory of Health Sciences and Technology, Tsinghua-Berkeley Shenzhen Institute (TBSI), Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Dongye Yang
- Division of Gastroenterology and Hepatology, The University of Hongkong-Shenzhen Hospital, Shenzhen 518055, China
| | - Kewei Liu
- Precision Medicine and Healthcare Research Center, Center for Biotechnology and Biomedicine, Shenzhen Key Laboratory of Gene and Antibody Therapy, State Key Laboratory of Chemical Oncogenomics, State Key Laboratory of Health Sciences and Technology, Tsinghua-Berkeley Shenzhen Institute (TBSI), Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Yubo Zhang
- Guangdong Clinical Translational Center for Targeted Drug, Department of Pharmacology, School of Medicine, Jinan University, Guangzhou 510632, China
- Correspondence: (Y.Z.); (L.H.)
| | - Laiqiang Huang
- Precision Medicine and Healthcare Research Center, Center for Biotechnology and Biomedicine, Shenzhen Key Laboratory of Gene and Antibody Therapy, State Key Laboratory of Chemical Oncogenomics, State Key Laboratory of Health Sciences and Technology, Tsinghua-Berkeley Shenzhen Institute (TBSI), Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- School of Life Sciences, Tsinghua University, Beijing 100084, China
- Department of Chemistry, Tsinghua University, Beijing 100084, China
- Correspondence: (Y.Z.); (L.H.)
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14
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Maleki S, Akaberi T, Emami SA, Akaberi M. Diterpenes of Scutellaria spp.: Phytochemistry and pharmacology. Phytochemistry 2022; 201:113285. [PMID: 35728674 DOI: 10.1016/j.phytochem.2022.113285] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 06/12/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Scutellaria genus, a member of the Lamiaceae family, distributed worldwide and known as skullcaps, contains a wide range of pharmacologically active constituents including flavonoids and diterpenes. There are different classes of diterpenes in the plant kingdom, of which many have medicinal applications. Scutellaria spp. contain neo-clerodane diterpenes, a large group of naturally occurring specialized metabolites found in both plant species and in organisms from other taxonomic groups, such as fungi, bacteria, and marine sponges. Although many phytochemical studies have been established reporting interesting specialized diterpene structures from Scutellaria spp., there has not been a comprehensive study reviewing these compounds. Hence, the present review reports on natural diterpenoids from the Scutellaria genus and their pharmacological activities. For this purpose, the scientific databases including Scopus, PubMed, and Google Scholar were searched using the keywords "Scutellaria" and "Diterpenes" or "Diterpenoids". The literature review showed that up to now, more than 300 diterpenes have been isolated and reported from the Scutellaria genus, belonging to neo-clerodane scaffolds. Anticancer, antifeedant, phytotoxic, antimicrobial, and nitric oxide production inhibitory activities are the most reported properties for the diterpenoids from the Scutellaria genus. Diterpenes of Scutellaria spp. have therapeutic potentials to be used for the treatment of different diseases. Further phytochemical, pharmacological, and clinical studies are required in this regard.
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Affiliation(s)
- Sina Maleki
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Toktam Akaberi
- Department of Organic Chemistry, Ferdowsi University, Mashhad, Iran.
| | - Seyed Ahmad Emami
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Traditional Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Maryam Akaberi
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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15
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Acquaviva R, Malfa GA, Loizzo MR, Xiao J, Bianchi S, Tundis R. Advances on Natural Abietane, Labdane and Clerodane Diterpenes as Anti-Cancer Agents: Sources and Mechanisms of Action. Molecules 2022; 27:molecules27154791. [PMID: 35897965 PMCID: PMC9330018 DOI: 10.3390/molecules27154791] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/18/2022] [Accepted: 07/25/2022] [Indexed: 01/14/2023]
Abstract
Extensive research over the past decades has identified numerous phytochemicals that could represent an important source of anti-cancer compounds. There is an immediate need for less toxic and more effective preventive and therapeutic strategies for the treatment of cancer. Natural compounds are considered suitable candidates for the development of new anti-cancer drugs due to their pleiotropic actions on target events with multiple manners. This comprehensive review highlighted the most relevant findings achieved in the screening of phytochemicals for anticancer drug development, particularly focused on a promising class of phytochemicals such as diterpenes with abietane, clerodane, and labdane skeleton. The chemical structure of these compounds, their main natural sources, and mechanisms of action were critically discussed.
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Affiliation(s)
- Rosaria Acquaviva
- Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy; (R.A.); (S.B.)
- CERNUT, Research Centre on Nutraceuticals and Health Products, Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy
| | - Giuseppe A. Malfa
- Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy; (R.A.); (S.B.)
- CERNUT, Research Centre on Nutraceuticals and Health Products, Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy
- Correspondence:
| | - Monica R. Loizzo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy; (M.R.L.); (R.T.)
| | - Jianbo Xiao
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Sciences, Universidade de Vigo, 32004 Ourense, Spain;
| | - Simone Bianchi
- Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy; (R.A.); (S.B.)
| | - Rosa Tundis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy; (M.R.L.); (R.T.)
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16
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Syafni N, Faleschini MT, Garifulina A, Danton O, Gupta MP, Hering S, Hamburger M. Clerodane Diterpenes from Casearia corymbosa as Allosteric GABA A Receptor Modulators. J Nat Prod 2022; 85:1201-1210. [PMID: 35475609 PMCID: PMC9150179 DOI: 10.1021/acs.jnatprod.1c00840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Indexed: 06/14/2023]
Abstract
An EtOAc extract of Casearia corymbosa leaves led to an allosteric potentiation of the GABA signal in a fluorometric imaging plate reader (FLIPR) assay on Chinese hamster ovary (CHO) cells stably expressing GABAA receptors with an α1β2γ2 subunit composition. The activity was tracked by HPLC-based activity profiling, and four known (2, 3, 4, and 8) and five new clerodane-type diterpenoids (1, 5-7, and 9) were isolated. Compounds 1-8 were obtained from the active time window. The absolute configuration of all compounds was established by ECD. Compounds 3, 7, and 8 exhibited EC50 values of 0.5, 4.6, and 1.4 μM, respectively. To explore possible binding sites at the receptor, the most abundant diterpenoid 8 was tested in combination with diazepam, etazolate, and allopregnanolone. An additive potentiation of the GABA signal was observed with these compounds, while the effect of 8 was not inhibited by flumazenil, a negative allosteric modulator at the benzodiazepine binding site. Finally, the activity was validated in voltage clamp studies on Xenopus laevis oocytes transiently expressing GABAA receptors of the α1β2γ2S and α1β2 subtypes. Compound 8 potentiated GABA-induced currents with both receptor subunit compositions [EC50 (α1β2γ2S) = 43.6 μM; Emax = 809% and EC50 (α1β2) = 57.6 μM; Emax = 534%]. The positive modulation of GABA-induced currents was not inhibited by flumazenil, thereby confirming an allosteric modulation independent of the benzodiazepine binding site.
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Affiliation(s)
- Nova Syafni
- Pharmaceutical
Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
- Faculty
of Pharmacy and Sumatran Biota Laboratory, Andalas University, Kampus Limau Manis, Padang, West Sumatra 25175, Indonesia
| | - Maria Teresa Faleschini
- Pharmaceutical
Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Aleksandra Garifulina
- Division
of Pharmacology and Toxicology, Department of Pharmaceutical Sciences, University of Vienna, Pharmaziezentrum, Althanstrasse 14, 1090 Vienna, Austria
| | - Ombeline Danton
- Pharmaceutical
Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Mahabir P. Gupta
- Center
for Pharmacognostic Research on Panamanian Flora, Faculty of Pharmacy, University of Panama, Panama City 0801, Panama
| | - Steffen Hering
- Division
of Pharmacology and Toxicology, Department of Pharmaceutical Sciences, University of Vienna, Pharmaziezentrum, Althanstrasse 14, 1090 Vienna, Austria
| | - Matthias Hamburger
- Pharmaceutical
Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
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17
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Pu DB, Guo SQ, Ni DX, Lin J, Gao JB, Li XN, Zhang RH, Li XL, Luo C, Chen SJ, Xiao WL. Spiroarborin, an ent-Clerodane Homodimer from Callicarpa arborea as an Inhibitor of the Eleven-Nineteen Leukemia (ENL) Protein by Targeting the YEATS Domain. J Nat Prod 2022; 85:317-326. [PMID: 35029993 DOI: 10.1021/acs.jnatprod.1c00775] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A spiro ent-clerodane homodimer with a rare 6/6/6/6/6-fused pentacyclic scaffold, spiroarborin (1), together with four new monomeric analogues (2-5), were isolated from Callicarpa arborea. Their structures were elucidated by comprehensive spectroscopic data analysis, quantum-chemical calculations, and X-ray diffraction. A plausible biosynthetic pathway of 1 was proposed, and a biomimetic synthesis of its derivative was accomplished. Compound 1 showed a potent inhibitory effect by directly binding to the YEATS domain of the 11-19 leukemia (ENL) protein with an IC50 value of 7.3 μM. This gave a KD value of 5.0 μM, as recorded by a surface plasmon resonance binding assay.
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Affiliation(s)
- De-Bing Pu
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, People's Republic of China
| | - Si-Qi Guo
- The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
- School of Pharmacy, Nanchang University, Nanchang 330006, People's Republic of China
| | - Dong-Xuan Ni
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, People's Republic of China
| | - Jing Lin
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, People's Republic of China
| | - Jun-Bo Gao
- State Key Laboratory of CAD&CG, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Xiao-Ning Li
- School of Pharmaceutical Sciences, Yunnan University of Chinese Medicine, Kunming 650500, People's Republic of China
| | - Rui-Han Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, People's Republic of China
| | - Xiao-Li Li
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, People's Republic of China
| | - Cheng Luo
- The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Shi-Jie Chen
- The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Wei-Lie Xiao
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, People's Republic of China
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Nguyen MV, Han JW, Le Dang Q, Ryu SM, Lee D, Kim H, Choi GJ. Clerodane Diterpenoids Identified from Polyalthia longifolia Showing Antifungal Activity against Plant Pathogens. J Agric Food Chem 2021; 69:10527-10535. [PMID: 34469148 DOI: 10.1021/acs.jafc.1c02200] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In the search for new natural resources showing plant disease control effects, we found that the methanol extract of Polyalthia longifolia suppressed fungal disease development in plants. To identify the bioactive substances, the methanol extract of P. longifolia was extracted by organic solvents, and consequently, four new 2-oxo-clerodane diterpenes (1-4), a new 4(3 → 2)-abeo-clerodane diterpene (5), together with ten known compounds (6-16) were isolated and identified from the extracts. Of the new compounds, compound 2 showed a broad spectrum of antifungal activity with moderated minimum inhibitory concentration (MIC) values in a range of 50-100 μg/mL against tested fungal pathogens. Considering with the known compounds, compound 6 showed the most potent antifungal activity with an MIC value in the range of 6.3-12.5 μg/mL. When compound 6 was evaluated for an in vivo antifungal activity against rice blast, tomato late blight, and pepper anthracnose, compound 6 reduced the plant disease by at least 60% compared to the untreated control at concentrations of 250 and 500 μg/mL. Together, our results suggested that the methanol extract of twigs and leaves of P. longifolia and its major compound 6 could be used as a source for the development of eco-friendly plant protection agents.
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Affiliation(s)
- Minh Van Nguyen
- Center for Eco-Friendly New Materials, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
- Department of Medicinal Chemistry and Pharmacology, University of Science and Technology, Daejeon 34113, Korea
| | - Jae Woo Han
- Center for Eco-Friendly New Materials, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
| | - Quang Le Dang
- Research and Development Center of Bioactive Compounds, Vietnam Institute of Industrial Chemistry, Hanoi 100000, Vietnam
| | - Seung Mok Ryu
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju 58245, Korea
| | - Dongho Lee
- Department of Biosystems and Biotechnology, Korea University, Seoul 02841, Korea
| | - Hun Kim
- Center for Eco-Friendly New Materials, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
- Department of Medicinal Chemistry and Pharmacology, University of Science and Technology, Daejeon 34113, Korea
| | - Gyung Ja Choi
- Center for Eco-Friendly New Materials, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
- Department of Medicinal Chemistry and Pharmacology, University of Science and Technology, Daejeon 34113, Korea
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Nguyen HT, Vu TY, Dakal TC, Dhabhai B, Nguyen XHQ, Tatipamula VB. Cleroda-4(18),13-dien-15,16-olide as novel xanthine oxidase inhibitors: An integrated in silico and in vitro study. PLoS One 2021; 16:e0253572. [PMID: 34191831 PMCID: PMC8244894 DOI: 10.1371/journal.pone.0253572] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/08/2021] [Indexed: 11/18/2022] Open
Abstract
In the present study, in silico predictions and molecular docking were performed on five clerodane diterpenes (1-5) from Polyalthia longifolia seeds to evaluate their potential as xanthine oxidase (XO) inhibitors. The initial screening was conducted by target prediction using TargetNet web server application and only compounds 3 and 4 showed a potential interaction with XO. Compounds 3 and 4 were subsequently subjected to in silico analyses on XO protein structure (PDB: 1N5X) using Schrödinger Release 2020-3 followed by structural modeling & molecular simulation studies to confirm the initial prediction result and identify the binding mode of these compounds to the XO. Molecular docking results revealed that compounds 3 (-37.3 kcal/mol) and 4 (-32.0 kcal/mol) binds more stably to XO than the reference drug allopurinol (-27.0 kcal/mol). Interestingly, two residues Glu 802 and Thr 1010 were observed as the two main H-bond binding sites for both tested compounds and the allopurinol. The center scaffold of allopurinol was positioned by some π-π stacking with Phe 914 and Phe 1009, while that of compounds 3 and 4 were supported by many hydrophobic interactions mainly with Leu 648, Phe 649, Phe 1013, and Leu 1014. Additionally, the docking simulation predicted that the inhibitory effect of compounds 3 and 4 was mediated by creating H-bond with particularly Glu 802, which is a key amino acid for XO enzyme inhibition. Altogether, in vitro studies showed that compounds 3 and 4 had better inhibitory capacity against XO enzyme with IC50 values significantly (p < 0.001) lower than that of allopurinol. In short, the present study identified cleroda-4(18),13-dien-15,16-olide as novel potential XO inhibitors, which can be potentially used for the treatment of gout.
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Affiliation(s)
- Ha Thi Nguyen
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
- Faculty of Medicine, Duy Tan University, Da Nang, Vietnam
| | - Thien-Y Vu
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- * E-mail: (TYV); (VBT)
| | - Tikam Chand Dakal
- Genome and Computational Biology Lab, Department of Biotechnology, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Bhanupriya Dhabhai
- Genome and Computational Biology Lab, Department of Biotechnology, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | | | - Vinay Bharadwaj Tatipamula
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
- Faculty of Medicine, Duy Tan University, Da Nang, Vietnam
- * E-mail: (TYV); (VBT)
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Wang Y, Liu YC, Li WY, Guo K, Liu Y, Li SH. Antifeedant, cytotoxic, and anti-inflammatory neo-clerodane diterpenoids in the peltate glandular trichomes and fresh leaves of Ajuga forrestii. Phytochemistry 2021; 186:112731. [PMID: 33721797 DOI: 10.1016/j.phytochem.2021.112731] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 03/05/2021] [Accepted: 03/06/2021] [Indexed: 06/12/2023]
Abstract
The Lamiaceae plant Ajuga forrestii Diels is a traditional Chinese herbal medicine with abundant glandular trichomes (GTs), but their chemistry and biological functions remain uninvestigated. Here, a panel of six highly functionalized neo-clerodane diterpenoids was localized to the peltate GTs of A. forrestii using laser microdissection coupled with HPLC analysis, indicating that the GTs of A. forrestii are an excellent material for the elucidation of the yet unclear biosynthetic pathway of natural neo-clerodane diterpenoids. In addition, four undescribed neo-clerodane diterpenoids with an acyclic C-9 side chain including two pairs of 1:1 mixture of inseparable diastereomers, ajuforrestins D-G, were isolated from the fresh leaves of A. forrestii together with six known compounds. The structures of the undescribed compounds were elucidated by spectroscopic (including 1D and 2D NMR and HR-ESI-MS) analyses. Biological assays indicated that the major GT compound ajugacumbin B and undescribed ajuforrestins D/E showed antifeedant activity against Helicoverpa armigera, suggesting that neo-clerodanes in A. forrestii should be involved in plant defence against insects. Moreover, the abietane diterpenoid ajuforrestin B exhibited significant anti-inflammatory activity on the secretion of interleukin-2 (IL-2) and cytotoxicity against three cancer cell lines, NCI-H1975, HepG2 and MCF-7, suggesting that ajuforrestin B could positively contribute to the therapeutic effects of this traditional Chinese medicine.
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Affiliation(s)
- Ying Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yan-Chun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, PR China
| | - Wen-Yuan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Kai Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Yan Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, PR China.
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, PR China; State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
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21
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Abstract
Pain remains a very pervasive problem throughout medicine. Classical pain management is achieved through the use of opiates belonging to the mu opioid receptor (MOR) class, which have significant side effects that hinder their utility. Pharmacologists have been trying to develop opioids devoid of side effects since the isolation of morphine from papaver somniferum, more commonly known as opium by Sertürner in 1804. The natural products salvinorin A, mitragynine, and collybolide represent three nonmorphinan natural product-based targets, which are potent selective agonists of opioid receptors, and emerging next-generation analgesics. In this work, we review the phytochemistry and medicinal chemistry efforts on these templates and their effects on affinity, selectivity, analgesic actions, and a myriad of other opioid-receptor-related behavioral effects.
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Affiliation(s)
- Soumen Chakraborty
- Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, Missouri 63110, United States; Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri 63110, United States
| | - Susruta Majumdar
- Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, Missouri 63110, United States; Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri 63110, United States
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22
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Fernando MP, Alberto HL, María Guadalupe VD, Agustina CM, Fernando NG, Eva AH, Hermelinda SC, María Eva GT. Neo-clerodane diterpenic influence in the antinociceptive and anti-inflammatory properties of Salvia circinnata Cav. J Ethnopharmacol 2021; 268:113550. [PMID: 33152437 DOI: 10.1016/j.jep.2020.113550] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 10/27/2020] [Accepted: 10/30/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Mexico is considered an ancestral center of diversity of Salvia species, however many of them lack scientific information. Salvia circinnata Cav. (syn. Salvia amarissima Ortega) is an endemic species used in traditional medicine to treat disorders attributed to a cold state like anxiety in the central nervous system, as well as gastrointestinal ailments and pain relief. AIM OF THE STUDY To give preclinical evidence about the pharmacological properties of this species by investigating its antinociceptive and anti-inflammatory effects, the chemical nature of at least one metabolite, and a possible mechanism of action and adverse effects, using different experimental models of pain. MATERIAL AND METHODS Different crude extracts of Salvia circinnata Cav. aerial parts were prepared using increasing polarity and evaluated in the formalin test in mice. This screening allowed to select and evaluate an ethyl acetate extract (EtOAc), as the most bioactive extract, and a metabolite. Antinociceptive and anti-inflammatory activities were confirmed using the plantar test and carrageenan-induced edema. The antinociceptive effects of the extracts were compared to that observed with morphine (1 mg/kg), tramadol (20 mg/kg) or indomethacin (20 mg/kg) as reference drugs. Participation of opioids and TRPV1 receptors was investigated, as well as acute toxicity and adverse effects of sedation and gastric damage. RESULTS EtOAc (0.1-10 mg/kg) of S. circinnata Cav. showed a dose-dependent and significant antinociceptive activity, associated in part with the presence of a neo-clerodane glycoside amarisolide A (0.01-1 mg/kg), in the neurogenic and inflammatory phases of the formalin test. Central action of both treatments was corroborated in the plantar test, whereas anti-inflammatory effects were confirmed with the extract (1 and 10 mg/kg) and amarisolide A (1 mg/kg) in the carrageenan-induced edema test. An opioid mechanism in both treatments, and the TRPV1 receptor modulation in the extract were involved. No acute toxicity and adverse effects were noticed with the extract and pure compound in comparison to the reference drugs. CONCLUSION These results provide preclinical evidence of the ethnopharmacological antinociceptive S. circinnata Cav. properties, in which the neo-clerodane diterpene glycoside amarisolide A was partially responsible involving the participation of the opioid receptors, while TRPV1 receptor modulation was implicated in the anti-inflammatory activity may be because of the presence of other constituents. This information supports the use of this species in folk medicine for pain therapy.
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Affiliation(s)
- Moreno-Pérez Fernando
- Laboratorio de Neurofarmacología de Productos Naturales de La Dirección de Investigaciones en Neurociencias Del Instituto Nacional de Psiquiatría Ramón de La Fuente Muñiz, Ciudad de México, Mexico.
| | - Hernandez-Leon Alberto
- Laboratorio de Neurofarmacología de Productos Naturales de La Dirección de Investigaciones en Neurociencias Del Instituto Nacional de Psiquiatría Ramón de La Fuente Muñiz, Ciudad de México, Mexico.
| | - Valle-Dorado María Guadalupe
- Laboratorio de Neurofarmacología de Productos Naturales de La Dirección de Investigaciones en Neurociencias Del Instituto Nacional de Psiquiatría Ramón de La Fuente Muñiz, Ciudad de México, Mexico.
| | - Cano-Martínez Agustina
- Departamento de Fisiología, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, Mexico.
| | | | - Aguirre-Hernández Eva
- Laboratorio de Productos Naturales, Departamento de Ecología y Recursos Naturales. Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria Coyoacán, 04510, CDMX, Mexico.
| | - Salgado-Ceballos Hermelinda
- Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, IMSS, Mexico.
| | - González-Trujano María Eva
- Laboratorio de Neurofarmacología de Productos Naturales de La Dirección de Investigaciones en Neurociencias Del Instituto Nacional de Psiquiatría Ramón de La Fuente Muñiz, Ciudad de México, Mexico.
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23
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Lei C, Wang XH, Liu YN, Zhao T, Hu Z, Li JY, Hou AJ. Clerodane diterpenoids from Dodonaea viscosa and their inhibitory effects on ATP citrate lyase. Phytochemistry 2021; 183:112614. [PMID: 33360008 DOI: 10.1016/j.phytochem.2020.112614] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/12/2020] [Accepted: 12/03/2020] [Indexed: 06/12/2023]
Abstract
Six undescribed clerodane diterpenoids, dodovisins A-F, together with nine known ones, were isolated from the aerial parts of Dodonaea viscosa (L.) Jacq. Their structures were elucidated by extensive spectroscopic techniques, X-ray crystallographic analysis, and ECD calculation. Dodovisins A and B possess a rare carbon skeleton featuring a bicyclo[6.2.0]decane motif. Dodovisins C-E represent the first clerodane diterpenoids with a 4(5 → 19)-abeo-2,4,10(1)-triene moiety. Dodovisins A, E, and strictic acid showed potent inhibitory activities against ATP citrate lyase.
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Affiliation(s)
- Chun Lei
- School of Pharmacy, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 201203, China
| | - Xiao-Hang Wang
- School of Pharmacy, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 201203, China
| | - Yi-Nan Liu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Ting Zhao
- School of Pharmacy, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 201203, China
| | - Zhu Hu
- School of Pharmacy, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 201203, China
| | - Jing-Ya Li
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ai-Jun Hou
- School of Pharmacy, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 201203, China.
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Di Q, Zhao X, Zhang R, Ma X, Liang X, Li X, Gao J, Tang H, Chen W, Xiao W. Novel clerodane-type diterpenoid Cintelactone A suppresses lipopolysaccharide -induced inflammation by promoting ubiquitination, proteasomal degradation of TRAF6. Pharmacol Res 2021; 164:105386. [PMID: 33352228 DOI: 10.1016/j.phrs.2020.105386] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/13/2020] [Accepted: 12/14/2020] [Indexed: 12/29/2022]
Abstract
Cellular inflammation is the underlying cause of several diseases and development of a safe and effective anti-inflammatory drug is need-of-the hour for treatment of diseases like lung inflammation. Callicarpa integerrima Champ. is a well-known herbal medicine with hemostatic and anti-inflammatory functions. However, the exact ingredient exhibiting anti-inflammatory activity in C. integerrima Champ. is largely unknown. Here, we first isolated, purified and characterized a novel clerodane-type diterpenoid Cintelactone A (CA) from C. integerrima Champ. We demonstrated that CA could significantly inhibit lipopolysaccharide (LPS)-induced pro-inflammatory cytokines and mediators production both in mouse peritoneal macrophages and THP1 cells. Consistently, CA also relieved inflammation and reduced LPS-induced lung injury in mice. We systematically elucidated the mechanism of action as well. CA interacted with Arg78 of tumor necrosis factor receptor-associated factor 6 (TRAF6) by hydrogen bonding. It further promoted the K48-linked ubiquitination and proteasomal degradation of TRAF6, and suppressed the activation of NF-κB and MAPKs signaling pathways. Collectively, our study reveals that new clerodane-type diterpenoid CA suppresses LPS-induced inflammation by promoting TRAF6 degradation, suggesting that CA as the potential therapeutic candidate for the treatment of inflammation associated diseases.
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Affiliation(s)
- Qianqian Di
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, 518060, China
| | - Xibao Zhao
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, 518060, China
| | - Ruihan Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Xingyu Ma
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, 518060, China
| | - Xinxin Liang
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Xiaoli Li
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Junbo Gao
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Haimei Tang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, 518060, China
| | - Weilin Chen
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, 518060, China.
| | - Weilie Xiao
- Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
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Vázquez-León P, Arenas-Martínez U, Córdova-Maqueda D, Fregoso-Aguilar T, Juan ERS, Miranda-Páez A. Salvia divinorum increases alcohol intake and tonic immobility whilst decreasing food intake in Wistar rats. Acta Neurobiol Exp (Wars) 2021; 81:34-42. [PMID: 33949161 DOI: 10.21307/ane-2021-005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 01/13/2021] [Indexed: 11/11/2022]
Abstract
The kappa-opioid system (KOP) is the key in drug abuse. Of all the compounds isolated from Salvia divinorum (S. divinorum), salvinorin-A (Sal-A) is predominant. Further, Sal-A is the only compound within S. divinorum which is reported to have psychoactive properties as a powerful kappa-opioid receptor (KOPr) agonist. Based on the key role of the KOP system in the consumption of drugs, S. divinorum extract (SDE) and Sal-A may modify the alcohol intake in Wistar rats. Assessing voluntary alcohol intake as a drug consummatory behavior, food intake as natural reward behavior and tonic immobility as indicative of anxiety-like behavior, the present study sought to identify the role of both SDE and Sal-A in the Wistar rat model. Forty-eight adult male rats were randomly divided into six groups: control, alcohol naive and vehicle, alcohol-naive and SDE, alcohol-naive and Sal-A, alcohol-consumption and vehicle, alcohol-consumption and SDE, and alcohol-consumption and Sal-A. Alcohol and food intake were assessed for two weeks. In the middle of these two weeks, vehicle, SDE (containing ~1 mg/kg of Sal-A) or Sal-A was injected intraperitoneally once a day for a week. Tonic immobility testing was performed once. The administration of SDE produced a significant increase in voluntary alcohol intake especially in rats with a history of forced alcohol consumption from a juvenile age, Sal-A elicited an increase in alcohol intake in animals with or without previous alcohol exposure, SDE and Sal-A prolonged the tonic immobility duration and decreased food intake. In conclusion, S. divinorum or Sal-A stimulated alcohol consumption in rats with a history of alcohol intake and independent of previous exposure respectively, also SDE or Sal-A elicited an anorexigenic effect, and increased tonic immobility as indicative of anxious-like behavior. The kappa-opioid system (KOP) is the key in drug abuse. Of all the compounds isolated from Salvia divinorum (S. divinorum), salvinorin-A (Sal-A) is predominant. Further, Sal-A is the only compound within S. divinorum which is reported to have psychoactive properties as a powerful kappa-opioid receptor (KOPr) agonist. Based on the key role of the KOP system in the consumption of drugs, S. divinorum extract (SDE) and Sal-A may modify the alcohol intake in Wistar rats. Assessing voluntary alcohol intake as a drug consummatory behavior, food intake as natural reward behavior and tonic immobility as indicative of anxiety-like behavior, the present study sought to identify the role of both SDE and Sal-A in the Wistar rat model. Forty-eight adult male rats were randomly divided into six groups: control, alcohol naive and vehicle, alcohol-naive and SDE, alcohol-naive and Sal-A, alcohol-consumption and vehicle, alcohol-consumption and SDE, and alcohol-consumption and Sal-A. Alcohol and food intake were assessed for two weeks. In the middle of these two weeks, vehicle, SDE (containing ~1 mg/kg of Sal-A) or Sal-A was injected intraperitoneally once a day for a week. Tonic immobility testing was performed once. The administration of SDE produced a significant increase in voluntary alcohol intake especially in rats with a history of forced alcohol consumption from a juvenile age, Sal-A elicited an increase in alcohol intake in animals with or without previous alcohol exposure, SDE and Sal-A prolonged the tonic immobility duration and decreased food intake. In conclusion, S. divinorum or Sal-A stimulated alcohol consumption in rats with a history of alcohol intake and independent of previous exposure respectively, also SDE or Sal-A elicited an anorexigenic effect, and increased tonic immobility as indicative of anxious-like behavior.
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Affiliation(s)
- Priscila Vázquez-León
- Departamento de Fisiología , Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Wilfrido Massieu esq. Manuel Stampa s/n , Col. Nueva Industrial Vallejo , Alcaldía Gustavo A. Madero , México City , Mexico ; Departamento de Fisiología y Farmacología , Centro de Ciencias Básicas , Universidad Autónoma de Aguascalientes , Ciudad Universitaria , Aguascalientes, Ags. , Mexico
| | - Ulises Arenas-Martínez
- Departamento de Fisiología , Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Wilfrido Massieu esq. Manuel Stampa s/n , Col. Nueva Industrial Vallejo , Alcaldía Gustavo A. Madero , México City , Mexico
| | - Dafne Córdova-Maqueda
- Laboratorio de Palinología , Departamento de Botánica , Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Plan de Ayala y Prolongación de Carpio s/n , Alcaldía Miguel Hidalgo , México City , Mexico
| | - Tomás Fregoso-Aguilar
- Departamento de Fisiología , Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Wilfrido Massieu esq. Manuel Stampa s/n , Col. Nueva Industrial Vallejo , Alcaldía Gustavo A. Madero , México City , Mexico
| | - Eduardo Ramírez-San Juan
- Departamento de Fisiología , Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Wilfrido Massieu esq. Manuel Stampa s/n , Col. Nueva Industrial Vallejo , Alcaldía Gustavo A. Madero , México City , Mexico
| | - Abraham Miranda-Páez
- Departamento de Fisiología , Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Wilfrido Massieu esq. Manuel Stampa s/n , Col. Nueva Industrial Vallejo , Alcaldía Gustavo A. Madero , México City , Mexico
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Velázquez-Domínguez JA, Hernández-Ramírez VI, Calzada F, Varela-Rodríguez L, Pichardo-Hernández DL, Bautista E, Herrera-Martínez M, Castellanos-Mijangos RD, Matus-Meza AS, Chávez-Munguía B, Talamás-Rohana P. Linearolactone and Kaempferol Disrupt the Actin Cytoskeleton in Entamoeba histolytica: Inhibition of Amoebic Liver Abscess Development. J Nat Prod 2020; 83:3671-3680. [PMID: 33231455 DOI: 10.1021/acs.jnatprod.0c00892] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Linearolactone (1) and kaempferol (2) have amebicidal activity in in vitro studies. The type of cell death induced by 1 and 2 and their effects on the virulence of E. histolytica were analyzed by transmission and confocal electron microscopy, reactive oxygen species (ROS) production, and apoptosis, detected by flow cytometry with dichlorofluorescein 2',7'-diacetate and annexin-V binding, respectively, and confirmed by TUNEL. The interaction of 1 and 2 with actin was analyzed by docking, and the in vivo amoebicidal activity was established with the Mesocricetus auratus model; amebic liver abscess (ALA) development was evaluated by magnetic resonance (MR) and validated post mortem. In vitro, compounds 1 and 2 caused chromatin condensation, intracellular ROS, and loss of actin structures. Coupling analysis showed that they bind to the allosteric and catalytic sites of actin with binding energies of -11.30 and -8.45 kcal/mol, respectively. Treatments with 1 and 2 induced a decrease in ALA formation without toxic effects on the liver and kidney. Thus, compound 1, but not 2, was able to induce apoptosis-like effects in E. histolytica trophozoites by intracellular production of ROS that affected the actin cytoskeleton structuration. In vivo, compound 1 was more active than compound 2 to reduce the development of ALA.
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Affiliation(s)
| | | | - Fernando Calzada
- Unidad de Investigación Médica en Farmacología, UMAE Hospital de Especialidades, CMN-Siglo XXI, Av. Cuauhtémoc 330, Col. Doctores, 06720, CDMX, México
| | - Luis Varela-Rodríguez
- Departamento de Infectómica y Patogénesis Molecular, CINVESTAV-IPN, Av. IPN 2508, San Pedro Zacatenco, 07360, CDMX, México
| | - Diana L Pichardo-Hernández
- Departamento de Infectómica y Patogénesis Molecular, CINVESTAV-IPN, Av. IPN 2508, San Pedro Zacatenco, 07360, CDMX, México
| | - Elihú Bautista
- Unidad de Ciencias Ambientales, IPICYT, Camino a la Presa San José, No. 2055, Lomas 4a. Sección, 78216, San Luis Potosí, S.L.P., México
| | - Mayra Herrera-Martínez
- Instituto de Farmacobiología, Universidad de la Cañada, Carretera Teotitlán San Antonio Nanahuatipán Km 1.7 s/n. Paraje Titlacuatitla, 68540, Teotitlán de Flores Magón, Oax., México
| | - Rodrigo D Castellanos-Mijangos
- Servicio de Imagenología Diagnóstica, Centro Médico ISSEMyM "Arturo Montiel Rojas", Av. Baja Velocidad No. 284, Carretera México-Toluca Km. 57.5, San Jerónimo Chicahualco, 52170, Metepec, Edo. Méx., México
| | - Audifas Salvador Matus-Meza
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, 04510, Mexico City, CDMX, México
| | - Bibiana Chávez-Munguía
- Departamento de Infectómica y Patogénesis Molecular, CINVESTAV-IPN, Av. IPN 2508, San Pedro Zacatenco, 07360, CDMX, México
| | - Patricia Talamás-Rohana
- Departamento de Infectómica y Patogénesis Molecular, CINVESTAV-IPN, Av. IPN 2508, San Pedro Zacatenco, 07360, CDMX, México
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Zeng S, Chen D, Liu G, Wu YX, Gao ZQ, Su Y, Yuan JN, Liu L, Shan JC, Pang QF, Zhu T. Salvinorin A protects against methicillin resistant staphylococcus aureus-induced acute lung injury via Nrf2 pathway. Int Immunopharmacol 2020; 90:107221. [PMID: 33293260 DOI: 10.1016/j.intimp.2020.107221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 02/05/2023]
Abstract
Salvinorin A (SA), a neoclerodane diterpene, is isolated from the dried leaves ofSalvia divinorum. SA has traditionally been used treatments for chronic pain diseases. Recent research has demonstrated that SA possesses the anti-inflammatory property. The present study aim to explore the effects and potentialmechanisms ofSA in protection against Methicillin Resistant Staphylococcus aureus (MRSA)-induced acute lung injury (ALI). Here, we firstly found that verylowdosesof SA (50 μg/kg) could markedly decrease the infiltration of pulmonary neutrophils, mRNA expression of pro-inflammatory cytokines (TNF-α, IL-1β and IL-6) and then attenuated ALI cause by MRSA infection in mice. In vitro findings revealed that SA attenuated lipoteichoicacid-induced apoptosis, inflammation and oxidative stress in RAW264.7 cells. Mechanism research revealed that SA increased both mRNA levels and protein levels of nuclear factor erythroid 2-related factor 2 (Nrf2) and up-regulated mRNA expression of its downstream genes (HO-1, Gclm, Trx-1, SOD1 and SOD2). Additionally, Nrf2 knockout mice abolished the inhibitory effect of SA on neutrophil accumulation and oxidative stress in MRSA-induced ALI. In conclusion, SA attenuates MRSA-induced ALI via Nrf2 signaling pathways.
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Affiliation(s)
- Si Zeng
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China; Department of Anesthesiology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610000, China
| | - Dan Chen
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Gang Liu
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Ya-Xian Wu
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Zhi-Qi Gao
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Ying Su
- Library, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jia-Ning Yuan
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Liu Liu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China; Department of Anesthesiology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610000, China
| | - Jia-Chen Shan
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qing-Feng Pang
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China.
| | - Tao Zhu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China.
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Ortiz-Mendoza N, Zavala-Ocampo LM, Martínez-Gordillo MJ, González-Trujano ME, Peña FAB, Bazany-Rodríguez IJ, Chávez JAR, Dorazco-González A, Aguirre-Hernández E. Antinociceptive and anxiolytic-like effects of a neo-clerodane diterpene from Salvia semiatrata aerial parts. Pharm Biol 2020; 58:620-629. [PMID: 32633180 PMCID: PMC7471977 DOI: 10.1080/13880209.2020.1784235] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
CONTEXT Salvia semiatrata Zucc. (Lamiaceae) is a species used as a tranquilizer and to relieve pain in folk medicine in Santiago Huauclilla, Oaxaca, Mexico. OBJECTIVE To evaluate the antinociceptive and anxiolytic-like effects of S. semiatrata extracts and identify a bioactive metabolite. MATERIALS AND METHODS The extracts were obtained by maceration of S. semiatrata aerial parts using solvents in increasing polarity (hexane, ethyl acetate and methanol). A neo-clerodane diterpene was extracted from the ethyl acetate fraction using open column chromatography. Identification of this metabolite was performed by crystallography, 1H NMR, 13C NMR, ATR-IR, ECD, MS and elemental analysis. The antinociceptive activity was explored using the writhing and formalin tests. Whereas, the anxiolytic-like responses were analysed in the open-field, hole-board and plus-maze tests. All the treatments were administered using oral gavage in male CD1 mice and explored 30 min after administration of the individual extracts (300 mg/kg) or the compound 1 (0.1, 1 or 10 mg/kg). RESULTS All the extracts produced significant reduction in the nociceptive and anxiety-like behaviour compared to mice treated with the vehicle (0.5% tween 80 in saline solution). The spectroscopic analysis corroborated the presence of the neo-clerodane diterpene 7-keto-neoclerodan-3,13-dien-18,19:15,16-diolide (1), as partial responsible of the antinociceptive and anxiolytic-like effects, which produced a dose-dependent response in the writhing test with an ED50=4.15 mg/kg. Discussion and conclusions: These results reinforce the medicinal properties of S. semiatrata in folk medicine, where participation of a neo-clerodane diterpene was evidenced in the inhibitory central nervous system activity of this species.
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Affiliation(s)
- Nancy Ortiz-Mendoza
- Laboratorio de Productos Naturales, Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, CDMX, México
| | - Lizeth M. Zavala-Ocampo
- Laboratorio de Productos Naturales, Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, CDMX, México
| | - Martha J. Martínez-Gordillo
- Herbario de la Facultad de Ciencias, Departamento de Biología Comparada, Facultad de Ciencias, Universidad Nacional Autónoma de México, CDMX, México
| | - María Eva González-Trujano
- Laboratorio de Neurofarmacología de Productos Naturales, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, CDMX, México
| | | | | | | | | | - Eva Aguirre-Hernández
- Laboratorio de Productos Naturales, Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, CDMX, México
- CONTACT Eva Aguirre-Hernández Laboratorio de Productos Naturales, Departamento de Ecología y Recursos Naturales, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, México04510
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Doss MK, May DG, Johnson MW, Clifton JM, Hedrick SL, Prisinzano TE, Griffiths RR, Barrett FS. The Acute Effects of the Atypical Dissociative Hallucinogen Salvinorin A on Functional Connectivity in the Human Brain. Sci Rep 2020; 10:16392. [PMID: 33009457 PMCID: PMC7532139 DOI: 10.1038/s41598-020-73216-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 09/11/2020] [Indexed: 12/23/2022] Open
Abstract
Salvinorin A (SA) is a κ-opioid receptor agonist and atypical dissociative hallucinogen found in Salvia divinorum. Despite the resurgence of hallucinogen studies, the effects of κ-opioid agonists on human brain function are not well-understood. This placebo-controlled, within-subject study used functional magnetic resonance imaging for the first time to explore the effects of inhaled SA on strength, variability, and entropy of functional connectivity (static, dynamic, and entropic functional connectivity, respectively, or sFC, dFC, and eFC). SA tended to decrease within-network sFC but increase between-network sFC, with the most prominent effect being attenuation of the default mode network (DMN) during the first half of a 20-min scan (i.e., during peak effects). SA reduced brainwide dFC but increased brainwide eFC, though only the former effect survived multiple comparison corrections. Finally, using connectome-based classification, most models trained on dFC network interactions could accurately classify the first half of SA scans. In contrast, few models trained on within- or between-network sFC and eFC performed above chance. Notably, models trained on within-DMN sFC and eFC performed better than models trained on other network interactions. This pattern of SA effects on human brain function is strikingly similar to that of other hallucinogens, necessitating studies of direct comparisons.
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Affiliation(s)
- Manoj K Doss
- Department of Psychiatry and Behavioral Sciences, Center for Psychedelic and Consciousness Research, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA.
| | - Darrick G May
- Department of Psychiatry and Behavioral Sciences, Center for Psychedelic and Consciousness Research, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA
| | - Matthew W Johnson
- Department of Psychiatry and Behavioral Sciences, Center for Psychedelic and Consciousness Research, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA
| | - John M Clifton
- Department of Psychiatry and Behavioral Sciences, Center for Psychedelic and Consciousness Research, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA
| | - Sidnee L Hedrick
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, USA
| | - Thomas E Prisinzano
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, USA
| | - Roland R Griffiths
- Department of Psychiatry and Behavioral Sciences, Center for Psychedelic and Consciousness Research, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Frederick S Barrett
- Department of Psychiatry and Behavioral Sciences, Center for Psychedelic and Consciousness Research, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA
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Chen YC, Wang PY, Huang BM, Chen YJ, Lee WC, Chen YC. 16-Hydroxycleroda-3,13-dien-15,16-olide Induces Apoptosis in Human Bladder Cancer Cells through Cell Cycle Arrest, Mitochondria ROS Overproduction, and Inactivation of EGFR-Related Signalling Pathways. Molecules 2020; 25:molecules25173958. [PMID: 32872665 PMCID: PMC7504739 DOI: 10.3390/molecules25173958] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/23/2020] [Accepted: 08/26/2020] [Indexed: 01/24/2023] Open
Abstract
A clerodane diterpene compound 16-hydroxycleroda-3,13-dien-15,16-olide (CD) is considered a therapeutic agent with pharmacological activities. The present study investigated the mechanisms of CD-induced apoptosis in T24 human bladder cancer cells. CD inhibited cell proliferation in a concentration and time-dependent manner. CD-induced overproduction of reactive oxygen species and reduced mitochondrial membrane potential, associated with reduced expression of Bcl-2 and increased levels of cytosolic cytochrome c, cleaved PARP-1 and caspase-3. In addition, CD treatment led to cell cycle arrest at the G0/G1 phase and inhibited expression of cyclin D1 and cyclin-dependent kinases 2 and 4 and led to increased levels of p21, p27Kip1 and p53. All of these events were accompanied with a reduction of pEGFR, pMEK1/2, pERK1/2, pAkt, pmTOR, pP70S6K1, HIF-1α, c-Myc and VEGF. RNAseq-based analysis revealed that CD-induced cell death was characterised by an increased expression of stress and apoptotic-related genes as well as inhibition of the cell cycle-related genes. In summary, CD induces apoptosis in T24 bladder cancer cells through targeting multiple intracellular signaling pathways as a result of oxidative stress and cell cycle arrest.
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Affiliation(s)
- Yu-Chi Chen
- Department of Urology, E-Da Cancer Hospital, Kaohsiung 824410, Taiwan;
- School of Medicine, I-Shou University, Kaohsiung 824410, Taiwan
| | - Po-Yu Wang
- Department of Paediatric Emergency, Changhua Christian Children Hospital, Changhua 500209, Taiwan;
| | - Bu-Miin Huang
- Department of Anatomy, College of Medicine, National Cheng Kung University, Tainan 701401, Taiwan;
| | - Yu-Jen Chen
- Resen Biomedical Informatics, Inc., Taipei 100043, Taiwan;
| | - Wei-Chang Lee
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan;
| | - Yung-Chia Chen
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan;
- Department of Anatomy, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan
- Correspondence:
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Pu DB, Zhang XJ, Bi DW, Gao JB, Yang Y, Li XL, Lin J, Li XN, Zhang RH, Xiao WL. Callicarpins, Two Classes of Rearranged ent-Clerodane Diterpenoids from Callicarpa Plants Blocking NLRP3 Inflammasome-Induced Pyroptosis. J Nat Prod 2020; 83:2191-2199. [PMID: 32628479 DOI: 10.1021/acs.jnatprod.0c00288] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Callicarpins A-D (1-4), possessing an unprecedented A-homoent-clerodane scaffold with a bicyclo[5.4.0]undecane ring system, and callicarpins E-G (5-7), with 5/6-fused ent-clerodane diterpenoid skeletons, were isolated from Callicarpaarborea and C. integerrim. Their structures were elucidated by comprehensive spectroscopic data, X-ray crystal diffraction, chemical derivatization, and electronic circular dichroism (ECD) data. Putative biosynthetic pathways for these callicarpins are proposed. Compounds 2, 3b, and 6-8 showed potent inhibitory effects against the NLRP3 inflammasome with IC50 values from 1.4 to 5.3 μM, and 2 significantly blocked NLRP3 inflammasome-induced pyroptosis by inhibiting Casp-1 activation and IL-1β secretion in J774A.1 cells.
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Affiliation(s)
- De-Bing Pu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
| | - Xing-Jie Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
| | - De-Wen Bi
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
| | - Jun-Bo Gao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Yan Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Xiao-Li Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
| | - Jing Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Rui-Han Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
| | - Wei-Lie Xiao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
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Huskinson SL, Platt DM, Brasfield M, Follett ME, Prisinzano TE, Blough BE, Freeman KB. Quantification of observable behaviors induced by typical and atypical kappa-opioid receptor agonists in male rhesus monkeys. Psychopharmacology (Berl) 2020; 237:2075-2087. [PMID: 32372348 PMCID: PMC7308209 DOI: 10.1007/s00213-020-05519-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 04/01/2020] [Indexed: 12/20/2022]
Abstract
RATIONALE Kappa-opioid receptor (KOR) agonists are antinociceptive but have side effects that limit their therapeutic utility. New KOR agonists have been developed that are fully efficacious at the KOR but may produce fewer or reduced side effects that are typical of KOR agonists. OBJECTIVES We determined behavioral profiles for typical and atypical KOR agonists purported to differ in intracellular-signaling profiles as well as a mu-opioid receptor (MOR) agonist, oxycodone, using a behavioral scoring system based on Novak et al. (Am J Primatol 28:124-138, 1992, Am J Primatol 46:213-227, 1998) and modified to quantify drug-induced effects (e.g., Duke et al. J Pharmacol Exp Ther 366:145-157, 2018). METHODS Six adult male rhesus monkeys were administered a range of doses of the typical KOR agonists, U50-488H (0.0032-0.1 mg/kg) and salvinorin A (0.00032-0.01 mg/kg); the atypical KOR agonists, nalfurafine (0.0001-0.001 mg/kg) and triazole 1.1 (0.01-0.32 mg/kg); the MOR agonist, oxycodone (0.0032-0.32 mg/kg); and as controls, cocaine (0.032-0.32 mg/kg) and ketamine (0.32-10 mg/kg). For time-course determinations, the largest dose of each KOR agonist or MOR agonist was administered across timepoints (10-320 min). In mixture conditions, oxycodone (0.1 mg/kg) was followed by KOR-agonist administration. RESULTS Typical KOR agonists produced sedative-like and motor-impairing effects. Nalfurafine was similar to typical KOR agonists on most outcomes, and triazole 1.1 produced no effects on its own except for reducing scratch during time-course determinations. In the mixture, all KOR agonists reduced oxycodone-induced scratching, U50-488H and nalfurafine reduced species-typical activity, and U50-488H increased rest/sleep posture. CONCLUSIONS Atypical "biased" KOR agonists produce side-effect profiles that are relatively benign (triazole 1.1) or reduced (nalfurafine) compared to typical KOR agonists.
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MESH Headings
- 3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-Isomer/pharmacology
- Analgesics, Opioid/pharmacology
- Animals
- Behavior, Animal/drug effects
- Behavior, Animal/physiology
- Diterpenes, Clerodane/pharmacology
- Dose-Response Relationship, Drug
- Macaca mulatta
- Male
- Morphinans/pharmacology
- Motor Activity/drug effects
- Motor Activity/physiology
- Oxycodone/pharmacology
- Receptors, Opioid, kappa/agonists
- Receptors, Opioid, kappa/physiology
- Spiro Compounds/pharmacology
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Affiliation(s)
- S L Huskinson
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, 39216, USA.
| | - D M Platt
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - M Brasfield
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - M E Follett
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - T E Prisinzano
- Department of Pharmaceutical Sciences, University of Kentucky, Lexington, KY, 40536, USA
| | - B E Blough
- Research Triangle Institute, Research Triangle Park, NC, 27709, USA
| | - K B Freeman
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, 39216, USA
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Fan M, Luo D, Peng LY, Wu XD, Ji X, Zhao QS. Rearranged neoclerodane diterpenoids from the aerial parts of Salvia hispanica L. Fitoterapia 2020; 146:104672. [PMID: 32553887 DOI: 10.1016/j.fitote.2020.104672] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/11/2020] [Accepted: 06/11/2020] [Indexed: 11/16/2022]
Abstract
Six new rearranged neoclerodane diterpenoids (1-6), as well as three known ones, were obtained from the aerial part of Salvia hispanica L. Their structures were elucidated by extensive analysis of spectroscopic data (1D, 2D NMR, and HRESIMS) and Mosher's method. The absolute configurations of 1, 2, and 4 were determined by single-crystal X-ray diffraction analysis. All isolated compounds were evaluated for their cardioprotective effects against H2O2-induced cardiomyocytes injury, and compound 5 showed statistically significant cardioprotective effect in vitro assays.
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Affiliation(s)
- Min Fan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China; College of Pharmacy and Chemistry, Dali University, Dali 671000, PR China
| | - Dan Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China
| | - Li-Yan Peng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China
| | - Xing-De Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China
| | - Xu Ji
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China; Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan, PR China.
| | - Qin-Shi Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China.
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Wang L, Chen W, Li M, Zhang F, Chen K, Chen W. A review of the ethnopharmacology, phytochemistry, pharmacology, and quality control of Scutellaria barbata D. Don. J Ethnopharmacol 2020; 254:112260. [PMID: 31577937 DOI: 10.1016/j.jep.2019.112260] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 09/28/2019] [Accepted: 09/28/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Scutellaria barbata D. Don (S. barbata) is a well-known perennial herb that is used in traditional Chinese and Korean medicine. In China, it is known as Ban Zhi Lian, while in Korea, it is known as Banjiryun. In the Traditional Chinese Medicine (TCM) system, S. barbata has heat-clearing and detoxifying properties (Qingre Jiedu in Chinese). AIM OF THE REVIEW To provide a systematic review on current multifaceted understanding of S. barbata, with particular emphasis on the correlation between its traditional applications and pharmacological activities. MATERIALS AND METHODS All available S. barbata-related information from internet databases, including PubMed, Science Direct, Elsevier, China National Knowledge Internet, and Google Scholar (up to October 2018) were searched. Additional information was gathered from classical books on Chinese Herbals, Chinese Pharmacopoeia, and so on. RESULTS In the TCM system, S. barbata is mainly prescribed for its heat-clearing and detoxifying effects. More than 203 compounds have been isolated and identified from this herb, with neo-clerodane diterpenoids and flavonoids as the main compounds. Most neo-clerodanes have been demonstrated to have cytotoxic effects against different cancer cell types in vitro. The S. barbata extracts exhibited anti-inflammatory, anti-microbial, antitumor, and other pharmacological activities. To add, flavonoids, including wogonin, baicalein, apigenin, naringenin, and scutellarin, were identified as the key to quality control. CONCLUSIONS The heat-clearing effects of S. barbata could be attributed to its anti-inflammatory and hepatoprotective activities, whereas its detoxifying effects might be due to the anti-microbial functions of neo-clerodane diterpenoids and flavones. S. barbata may display anti-tumor effects and through active ingredient analysis, neo-clerodane diterpenoids are suggested to be its representative compounds. Overall, many pre-clinical studies have been conducted but very little concrete evidences are available on its specific effects, which are of therapeutic relevance.
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Affiliation(s)
- Liang Wang
- Institute of Chinese Materia Madica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Wei Chen
- Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Mingming Li
- Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Feng Zhang
- Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Kaixian Chen
- Institute of Chinese Materia Madica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Wansheng Chen
- Institute of Chinese Materia Madica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China.
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35
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Dong B, Yang X, Liu W, An L, Zhang X, Tuerhong M, Du Q, Wang C, Abudukeremu M, Xu J, Lee D, Shuai L, Lall N, Guo Y. Anti-inflammatory neo-Clerodane Diterpenoids from Ajuga pantantha. J Nat Prod 2020; 83:894-904. [PMID: 32216313 DOI: 10.1021/acs.jnatprod.9b00629] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Eight new neo-clerodane diterpenoids (1-8) were acquired from the aerial parts of Ajuga pantantha. Spectroscopic data analysis permitted the definition of their structures, and experimental and calculated electronic circular dichroism data were used to define their absolute configurations. Compounds 2 and 4-8 were found to have NO inhibitory effects with IC50 values of 20.2, 45.5, 34.0, 27.0, 45.0, and 25.8 μM, respectively. The more potent compounds 2, 6, and 8 were analyzed to establish their anti-inflammatory mechanism, including regulation of the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) proteins as well as their binding interactions with the two proteins.
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Affiliation(s)
- Bangjian Dong
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, People's Republic of China
| | - Xueyuan Yang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, People's Republic of China
| | - Wenpei Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, People's Republic of China
| | - Lijun An
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, People's Republic of China
| | - Xuke Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, People's Republic of China
| | - Muhetaer Tuerhong
- College of Chemistry and Environmental Sciences, Kashgar University, Kashgar 844000, People's Republic of China
| | - Qing Du
- Key Laboratory for Tibet Plateau Phytochemistry of Qinghai Province, College of Pharmacy, Qinghai Nationalities University, Xining 810007, People's Republic of China
| | - Chunyan Wang
- Tianjin Second People's Hospital, Tianjin 300192, People's Republic of China
| | - Munira Abudukeremu
- College of Chemistry and Environmental Sciences, Kashgar University, Kashgar 844000, People's Republic of China
| | - Jing Xu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, People's Republic of China
- Tianjin Second People's Hospital, Tianjin 300192, People's Republic of China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Dongho Lee
- College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Ling Shuai
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, People's Republic of China
| | - Namrita Lall
- Department of Plant and Soil Sciences, University of Pretoria, Pretoria 0002, South Africa
| | - Yuanqiang Guo
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, People's Republic of China
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36
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Socała K, Doboszewska U, Wlaź P. Salvinorin A Does Not Affect Seizure Threshold in Mice. Molecules 2020; 25:molecules25051204. [PMID: 32155979 PMCID: PMC7179429 DOI: 10.3390/molecules25051204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/04/2020] [Accepted: 03/05/2020] [Indexed: 11/16/2022] Open
Abstract
The κ-opioid receptor has recently gained attention as a new molecular target in the treatment of many psychiatric and neurological disorders including epilepsy. Salvinorin A is a potent plant-derived hallucinogen that acts as a highly selective κ-opioid receptor agonist. It has unique structure and pharmacological properties, but its influence on seizure susceptibility has not been studied so far. Therefore, the aim of the present study was to investigate the effect of salvinorin A on seizure thresholds in three acute seizure tests in mice. We also examined its effect on muscular strength and motor coordination. The obtained results showed that salvinorin A (0.1-10 mg/kg, i.p.) did not significantly affect the thresholds for the first myoclonic twitch, generalized clonic seizure, or forelimb tonus in the intravenous pentylenetetrazole seizure threshold test in mice. Likewise, it failed to affect the thresholds for tonic hindlimb extension and psychomotor seizures in the maximal electroshock- and 6 Hz-induced seizure threshold tests, respectively. Moreover, no changes in motor coordination (assessed in the chimney test) or muscular strength (assessed in the grip-strength test) were observed. This is a preliminary report only, and further studies are warranted to better characterize the effects of salvinorin A on seizure and epilepsy.
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37
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Li HY, Wei WJ, Ma KL, Zhang JY, Li Y, Gao K. Phytotoxic neo-clerodane diterpenoids from the aerial parts of Scutellaria barbata. Phytochemistry 2020; 171:112230. [PMID: 31923722 DOI: 10.1016/j.phytochem.2019.112230] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/29/2019] [Accepted: 12/17/2019] [Indexed: 06/10/2023]
Abstract
Bioactivity guided the isolation of extracts from the aerial parts Scutellaria barbata D. Don to discover neo-clerodane diterpenoids with potent phytotoxic activity. Of the 34 isolates, 13 neo-clerodane diterpenoids were described for the first time. The structures of these undescribed compounds were elucidated by extensive analysis of NMR spectroscopic data, and the absolute configurations of scutebarbolides A and L and scutebata W were determined by X-ray diffraction. The phytotoxic activity of all compounds against the growth of the roots and shoots of L. perenne and L. sativa seedlings were first reported, and some compounds showed considerable inhibitory effects, especially scutebarbolide K, whose inhibition rates were higher than those of the positive control at concentrations ranging from 25 to 200 μg/mL. When L. perenne and L. sativa seedlings were treated at a concentration of 200 μg/mL, scutebarbolide K caused wilting symptoms on and finally death of these two tested plant seedlings. In addition, the structure-activity relationships of these neo-clerodane diterpenoids were also discussed.
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Affiliation(s)
- Hang-Ying Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Wen-Jun Wei
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Kai-Liang Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Jie-Yao Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Ya Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
| | - Kun Gao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
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38
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Queiroz SAS, Pinto MEF, Bobey AF, Russo HM, Batista ANL, Batista JM, Codo AC, Medeiros AI, Bolzani VS. Diterpenoids with inhibitory activity of nitrite production from Croton floribundus. J Ethnopharmacol 2020; 249:112320. [PMID: 31639485 DOI: 10.1016/j.jep.2019.112320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 10/16/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Croton floribundus Spreng. (Euphorbiaceae), popularly known as Capixinguí, stands out due to its widespread use in traditional medicine to treat wounds, syphilis, hemorrhoids, eye diseases and as a purgative. AIM OF THE STUDY To characterize clerodanes diterpenes from C. floribundus and to evaluate the effects of the fraction and diterpenes (1-5) on inhibition of nitrite production. MATERIALS AND METHODS The hydroethanolic root extract of C. floribundus was fractionated on a solid phase extraction column to obtain the fraction named Fr80%. From this, five compounds were obtained and characterized. The absolute configuration of compound 1 was determined by a combination of electronic and vibrational circular dichroism spectroscopies. Additionally, compounds 1-5 were evaluated for their inhibitory effects on nitrite production induced by lipopolysaccharide (LPS) in RAW 264 macrophage cell. RESULTS Five clerodane diterpenoids were characterized, and the absolute stereochemistry of 1 was established as 3R,4R,5R,8R,9R,10S,12S. The IC50 values obtained through inhibition of nitrite production were 28.52 ± 2.21 μM (1), 40.26 ± 2.79 μM (2), 25.47 ± 2.16 μM (3), 35.78 ± 2.93 μM (4) and 40.58 ± 4.78 μM (5). In the tested concentrations, the samples presented low toxicity in macrophages. CONCLUSIONS Four new diterpenes were characterized from C. floribundus, these being croflorins A-D (1-4) and a known halimane (5). These compounds exhibited inhibitory effect on nitrite production.
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Affiliation(s)
| | - Meri Emili F Pinto
- Institute of Chemistry, Sao Paulo State University, Araraquara, 14800-060, Sao Paulo, Brazil
| | - Antonio F Bobey
- Institute of Chemistry, Sao Paulo State University, Araraquara, 14800-060, Sao Paulo, Brazil
| | - Helena M Russo
- Institute of Chemistry, Sao Paulo State University, Araraquara, 14800-060, Sao Paulo, Brazil
| | - Andrea N L Batista
- Institute of Chemistry, Fluminense Federal University, Niteroi, 24020-141, Rio de Janeiro, Brazil
| | - Joao M Batista
- Institute of Science and Technology, Federal University of Sao Paulo, Sao Jose Dos Campos, 12231-280, Sao Paulo, Brazil
| | - Ana C Codo
- School of Pharmaceutical Sciences, Sao Paulo State University, Araraquara, 01049-010, Sao Paulo, Brazil
| | - Alexandra I Medeiros
- School of Pharmaceutical Sciences, Sao Paulo State University, Araraquara, 01049-010, Sao Paulo, Brazil
| | - Vanderlan S Bolzani
- Institute of Chemistry, Sao Paulo State University, Araraquara, 14800-060, Sao Paulo, Brazil.
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39
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Liu F, Ma J, Shi Z, Zhang Q, Wang H, Li D, Song Z, Wang C, Jin J, Xu J, Tuerhong M, Abudukeremu M, Shuai L, Lee D, Guo Y. Clerodane Diterpenoids Isolated from the Leaves of Casearia graveolens. J Nat Prod 2020; 83:36-44. [PMID: 31916761 DOI: 10.1021/acs.jnatprod.9b00515] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A phytochemical survey aiming to acquire pharmacologically active substances has resulted in the isolation of nine new clerodane diterpenoids, named graveospenes A-I (1-9), from the leaves of Casearia graveolens. Spectroscopic methods were employed to establish the structures with their absolute configurations being confirmed by ECD data analysis. A biological evaluation was performed, and compound 1 was found to be cytotoxic to both human lung cancer cells (A549) and human hepatocellular carcinoma cells (HepG2). A mechanism-of-action study on 1 revealed this compound to induce apoptosis of A549 cells and impede them at the G0/G1 stage.
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Affiliation(s)
- Feng Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300350 , People's Republic of China
| | - Jun Ma
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300350 , People's Republic of China
| | - Zhaoyu Shi
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300350 , People's Republic of China
| | - Qi Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300350 , People's Republic of China
| | - Huimei Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300350 , People's Republic of China
| | - Dihua Li
- Tianjin Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine , Nankai Hospital Affiliated to Nankai University , Tianjin 300100 , People's Republic of China
| | - Zhaohui Song
- State Key Laboratory of Core Technology in Innovative Chinese Medicine , Tasly Pharmaceutical Group Co., Ltd. , Tianjin 300410 , People's Republic of China
| | - Chunyan Wang
- Tianjin Second People's Hospital , Tianjin 300192 , People's Republic of China
| | - Jin Jin
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300350 , People's Republic of China
| | - Jing Xu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300350 , People's Republic of China
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , Guangxi Normal University , Guilin 541004 , People's Republic of China
| | - Muhetaer Tuerhong
- College of Chemistry and Environmental Sciences , Kashgar University , Kashgar 844000 , People's Republic of China
| | - Munira Abudukeremu
- College of Chemistry and Environmental Sciences , Kashgar University , Kashgar 844000 , People's Republic of China
| | - Ling Shuai
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300350 , People's Republic of China
| | - Dongho Lee
- College of Life Sciences and Biotechnology , Korea University , Seoul 02841 , Republic of Korea
| | - Yuanqiang Guo
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300350 , People's Republic of China
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40
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Zheng JH, Lin SR, Tseng FJ, Tsai MJ, Lue SI, Chia YC, Woon M, Fu YS, Weng CF. Clerodane Diterpene Ameliorates Inflammatory Bowel Disease and Potentiates Cell Apoptosis of Colorectal Cancer. Biomolecules 2019; 9:biom9120762. [PMID: 31766534 PMCID: PMC6995628 DOI: 10.3390/biom9120762] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 11/20/2019] [Accepted: 11/20/2019] [Indexed: 02/07/2023] Open
Abstract
Inflammatory bowel disease (IBD) is general term for ulcerative colitis and Crohn's disease, which is chronic intestinal and colorectal inflammation caused by microbial infiltration or immunocyte attack. IBD is not curable, and is highly susceptible to develop into colorectal cancer. Finding agents to alleviate these symptoms, as well as any progression of IBD, is a critical effort. This study evaluates the anti-inflammation and anti-tumor activity of 16-hydroxycleroda-3,13-dien-15,16-olide (HCD) in in vivo and in vitro assays. The result of an IBD mouse model induced using intraperitoneal chemical azoxymethane (AOM)/dextran sodium sulfate (DSS) injection showed that intraperitoneal HCD adminstration could ameliorate the inflammatory symptoms of IBD mice. In the in vitro assay, cytotoxic characteristics and retained signaling pathways of HCD treatment were analyzed by MTT assay, cell cycle analysis, and Western blotting. From cell viability determination, the IC50 of HCD in Caco-2 was significantly lower in 2.30 μM at 48 h when compared to 5-fluorouracil (5-FU) (66.79 μM). By cell cycle and Western blotting analysis, the cell death characteristics of HCD treatment in Caco-2 exhibited the involvement of extrinsic and intrinsic pathways in cell death, for which intrinsic apoptosis was predominantly activated via the reduction in growth factor signaling. These potential treatments against colon cancer demonstrate that HCD could provide a promising adjuvant as an alternative medicine in combating colorectal cancer and IBD.
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Affiliation(s)
- Jia-Huei Zheng
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 97401, Taiwan; (J.-H.Z.); (S.-R.L.); (F.-J.T.); (S.-I.L.)
| | - Shian-Ren Lin
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 97401, Taiwan; (J.-H.Z.); (S.-R.L.); (F.-J.T.); (S.-I.L.)
| | - Feng-Jen Tseng
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 97401, Taiwan; (J.-H.Z.); (S.-R.L.); (F.-J.T.); (S.-I.L.)
- Department of Orthopedics, Hualien Armed Force General Hospital, Hualien 97144, Taiwan
| | - May-Jywan Tsai
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei City 11217, Taiwan;
| | - Sheng-I Lue
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 97401, Taiwan; (J.-H.Z.); (S.-R.L.); (F.-J.T.); (S.-I.L.)
- Department of Physiology & Master’s Program, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yi-Chen Chia
- Department of Food Science & Technology, Tajen University, Pingtung 90741, Taiwan;
| | - Mindar Woon
- Department of Radiation Oncology, Yeezen Hospital, Taoyuan 32645, Taiwan;
| | - Yaw-Syan Fu
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Institute of Respiratory Disease, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, China
| | - Ching-Feng Weng
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Institute of Respiratory Disease, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, China
- Correspondence: or ; Tel.: +886-3-8903609
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41
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Fan M, Luo D, Peng LY, Li XN, Wu XD, Ji X, Zhao QS. Neo-clerodane diterpenoids from aerial parts of Salvia hispanica L. and their cardioprotective effects. Phytochemistry 2019; 166:112065. [PMID: 31362147 DOI: 10.1016/j.phytochem.2019.112065] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 07/09/2019] [Accepted: 07/11/2019] [Indexed: 06/10/2023]
Abstract
Ten undescribed neo-clerodane diterpenoids, named hispanins A-J, together with six known ones, were isolated from the aerial parts of Salvia hispanica L. Their structures were established by extensive spectroscopic analysis. The absolute configurations of the undescribed compounds were determined by the ECD data and single crystal X-ray diffraction analysis. Hispanins B and C represented the first neo-clerodane diterpenoids with a unique oxygen bridge between C-19 and C-20. All isolated compounds were evaluated for their protective effects against H2O2-induced cardiomyocyte injury. Five of these compounds showed significant cardioprotective effects.
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Affiliation(s)
- Min Fan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, PR China; College of Pharmaceutical Science, Dali University, Dali, 671000, PR China
| | - Dan Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, PR China
| | - Li-Yan Peng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, PR China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, PR China
| | - Xing-De Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, PR China.
| | - Xu Ji
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, PR China.
| | - Qin-Shi Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, PR China.
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42
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Li XR, Fu Q, Zhou M, Hu K, Du X, Li XN, Sun HD, Yue JB, Zhang HB, Puno PT. Isoscoparins R and S, two new ent-clerodane diterpenoids from Isodon scoparius. J Asian Nat Prod Res 2019; 21:977-984. [PMID: 29873248 DOI: 10.1080/10286020.2018.1481054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 05/22/2018] [Indexed: 06/08/2023]
Abstract
Two new ent-clerodane diterpenoids, named isoscoparins R and S (1 and 2), were isolated from the aerial parts of Isodon scoparius. Their structures were characterized mainly by analyzing the NMR and HRESIMS data, and the relative configuration of compound 1 was determined by single-crystal X-ray diffraction. Compound 2 showed weak activity as an autophagic inhibitor.
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Affiliation(s)
- Xing-Ren Li
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science and Technology, Yunnan University , Kunming 650091 , China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Qiang Fu
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon Tong , Hong Kong , China
| | - Min Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Kun Hu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Xue Du
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Han-Dong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Jian-Bo Yue
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon Tong , Hong Kong , China
- Shenzhen Research Institute of City University of Hong Kong , Shenzhen 518057 , China
| | - Hong-Bin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science and Technology, Yunnan University , Kunming 650091 , China
| | - Pema-Tenzin Puno
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
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Shuo Y, Zhang C, Yang X, Liu F, Zhang Q, Li A, Ma J, Lee D, Ohizumi Y, Guo Y. Clerodane diterpenoids from Casearia kurzii and their cytotoxic activities. J Nat Med 2019; 73:826-833. [PMID: 31183662 DOI: 10.1007/s11418-019-01324-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 05/23/2019] [Indexed: 11/26/2022]
Abstract
A search for bioactive natural products as anticancer lead compounds resulted in the isolation of one previously undescribed and three known clerodane diterpenoids (1-4) from Casearia kurzii. The structures of these compounds were established by analysis of their NMR, MS, and electronic circular dichroism data. The cytotoxic activities of four compounds against three human cancer cell lines were evaluated. Compound 2 was found to be the most active with an IC50 value of 4.1 μM against HeLa cells, and was selected to investigate the possible cytotoxic mechanism.
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Affiliation(s)
- Yuan Shuo
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Drug Research, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China
| | - Chenyue Zhang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Drug Research, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China
| | - Xueyuan Yang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Drug Research, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China
| | - Feng Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Drug Research, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China
| | - Qi Zhang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Drug Research, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China
| | - Annan Li
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Drug Research, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China
| | - Jun Ma
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Drug Research, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China
| | - Dongho Lee
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea
| | - Yasushi Ohizumi
- Kansei Fukushi Research Institute, Tohoku Fukushi University, Sendai, 989-3201, Japan
| | - Yuanqiang Guo
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Drug Research, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China.
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Huang PK, Lin SR, Riyaphan J, Fu YS, Weng CF. Polyalthia Clerodane Diterpene Potentiates Hypoglycemia via Inhibition of Dipeptidyl Peptidase 4. Int J Mol Sci 2019; 20:E530. [PMID: 30691220 PMCID: PMC6387447 DOI: 10.3390/ijms20030530] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 01/14/2019] [Accepted: 01/24/2019] [Indexed: 12/15/2022] Open
Abstract
Serine protease dipeptidyl peptidase 4 (DPP-4) is involved in self/non-self-recognition and insulin sensitivity. DPP-4 inhibitors are conventional choices for diabetic treatment; however, side effects such as headache, bronchus infection, and nasopharyngitis might affect the daily lives of diabetic patients. Notably, natural compounds are believed to have a similar efficacy with lower adverse effects. This study aimed to validate the DPP-4 inhibitory activity of clerodane diterpene 16-hydroxycleroda-3,13-dien-15,16-olide (HCD) from Polyalthia longifolia, rutin, quercetin, and berberine, previously selected through molecular docking. The inhibitory potency of natural DPP-4 candidates was further determined by enzymatic, in vitro Caco-2, and ERK/PKA activation in myocyte and pancreatic cells. The hypoglycemic efficacy of the natural compounds was consecutively analyzed by single-dose and multiple-dose administration in diet-induced obese diabetic mice. All the natural-compounds could directly inhibit DPP-4 activity in enzymatic assay and Caco-2 inhibition assay, and HCD showed the highest inhibition of the compounds. HCD down-regulated LPS-induced ERK phosphorylation in myocyte but blocked GLP-1 induced PKA expression. For in vivo tests, HCD showed hypoglycemic efficacy only in single-dose administration. After 28-days administration, HCD exhibited hypolipidemic and hepatoprotective efficacy. These results revealed that HCD performed potential antidiabetic activity via inhibition of single-dose and long-term administrations, and could be a new prospective anti-diabetic drug candidate.
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Affiliation(s)
- Po-Kai Huang
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 97401, Taiwan.
| | - Shian-Ren Lin
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 97401, Taiwan.
| | - Jirawat Riyaphan
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 97401, Taiwan.
| | - Yaw-Syan Fu
- Departmental of Biomedical Science and Environmental Biology, Kaoshiung Medical University, Kaoshiung 80708, Taiwan.
| | - Ching-Feng Weng
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 97401, Taiwan.
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45
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Lhullier C, de Oliveira Tabalipa E, Nienkötter Sardá F, Sandjo LP, Zanchett Schneider NF, Carraro JL, Oliveira Simões CM, Schenkel EP. Clerodane Diterpenes from the Marine Sponge Raspailia bouryesnaultae Collected in South Brazil. Mar Drugs 2019; 17:md17010057. [PMID: 30654553 PMCID: PMC6356680 DOI: 10.3390/md17010057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 12/31/2018] [Accepted: 01/12/2019] [Indexed: 01/27/2023] Open
Abstract
The marine sponge Raspailia bouryesnaultae, collected in South Brazil, was selected for detailed investigation considering the results of a screening that pointed to an in vitro antiproliferative effect against non-small cells of human lung cancer (A549) and anti-herpes activity against Herpes Simplexvirus type 1 (KOS and 29R strains) of ethanolic extracts. The fractionation and chemical investigation of the sponge’s hexanic fraction led to the isolation and structural elucidation of six clerodane diterpenes. The main component was identified as the already-reported raspailol (1), isolated from a sponge of the same genus collected in New Zealand. The structure of a new diterpene (2) with a rearranged skeleton was established by high-resolution mass spectrometry (HRMS) and 1D and 2D Nuclear magnetic resonance spectroscopy (NMR) experiments, and named here as raspadiene. Furthermore, four diterpenes were elucidated as isomers of clerodane diterpenes previously obtained from plants, namely kerlinic acid (3), kerlinic acid methyl ester (4), annonene (5), and 6-hydroxyannonene (6). They differ in their stereochemistry, since these diterpenes are characterized by a trans ring fusion at the decalin moiety and the relative configuration of the two methyl groups at C-8 and C-9 in a cis relationship (type trans/cis). The Raspailia diterpenes have a cis ring fusion at the decalin moiety, and the two methyl groups at C-8 and C-9 are in a trans relationship (type cis/trans). The isolated compounds were evaluated for their potential antiproliferative effects on human cancer cell line A549, and it was observed that the diterpenes bearing a hydroxyl group at C-6 exhibited moderate cytotoxic activity, with 50% inhibitory concentration (IC50) values lower than 25 μM. The evaluation of the potential anti-herpes activity against Herpes Simplex Virus type 1 (HSV-1, KOS and 29R strains) showed that the more promising results were observed for the new compound 2, since it inhibited HSV-1 (KOS and 29R strains) replication by 83% and 74%, respectively.
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Affiliation(s)
- Cintia Lhullier
- Laboratório de Produtos Naturais, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil.
| | - Eliane de Oliveira Tabalipa
- Laboratório de Produtos Naturais, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil.
| | - Fernanda Nienkötter Sardá
- Laboratório de Produtos Naturais, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil.
| | - Louis Pergaud Sandjo
- Laboratório de Farmacognosia, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil.
| | - Naira Fernanda Zanchett Schneider
- Laboratório de Virologia Aplicada, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil.
| | - João Luis Carraro
- Departamento de Invertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro 20940-040, RJ, Brazil.
| | - Cláudia Maria Oliveira Simões
- Laboratório de Virologia Aplicada, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil.
| | - Eloir Paulo Schenkel
- Laboratório de Produtos Naturais, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, SC, Brazil.
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46
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Aziz AN, Ismail NH, Halim SNA, Looi CY, Anouar EH, Langat MK, Mulholland D, Awang K. Laevifins A-G, clerodane diterpenoids from the Bark of Croton oblongus Burm.f. Phytochemistry 2018; 156:193-200. [PMID: 30316148 DOI: 10.1016/j.phytochem.2018.10.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 09/30/2018] [Accepted: 10/02/2018] [Indexed: 06/08/2023]
Abstract
A phytochemical investigation of the stem barks of the Malaysian Croton oblongus Burm.f. (Syn. Croton laevifolius Blume) (Euphorbiaceae) yielded seven previously undescribed ent-neo-clerodane diterpenoids, laevifins A - G and the known crovatin (3). Structures were established by a combination of spectroscopic methods including HRESIMS, NMR spectroscopy and X-ray crystallography. The absolute configuration of crovatin and laevifins A-G was established by comparison of experimental ECD and theoretical TDDFT ECD calculated spectra. This is the first report on the occurrence of the sesquiterpenoid cryptomeridiol in a Croton species. In vitro cytotoxicity assays on laevifins A, B and G showed moderate activities against the MCF-7 cancer cell line (IC50 102, 115 and 106 μM, respectively) while β-amyrin and acetyl aleuritolic acid showed good anti-inflammatory activity on the LPS-induced NF-κB translocation inhibition in RAW 264.7 cells assay with IC50 values of 23.5 and 35.4 μg/mL, respectively.
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MESH Headings
- Animals
- Anti-Inflammatory Agents, Non-Steroidal/chemistry
- Anti-Inflammatory Agents, Non-Steroidal/isolation & purification
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Cell Proliferation/drug effects
- Croton/chemistry
- Diterpenes, Clerodane/chemistry
- Diterpenes, Clerodane/isolation & purification
- Diterpenes, Clerodane/pharmacology
- Dose-Response Relationship, Drug
- Drug Screening Assays, Antitumor
- Humans
- Lipopolysaccharides/antagonists & inhibitors
- Lipopolysaccharides/pharmacology
- MCF-7 Cells
- Mice
- Molecular Conformation
- NF-kappa B/antagonists & inhibitors
- NF-kappa B/metabolism
- Plant Bark/chemistry
- Plant Extracts/chemistry
- Plant Extracts/isolation & purification
- Plant Extracts/pharmacology
- Quantum Theory
- RAW 264.7 Cells
- Structure-Activity Relationship
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Affiliation(s)
- Ahmad Nazif Aziz
- School of Fundamental Science, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia; Atta-ur-Rahman Institute for Natural Products Discovery, Level 9, FF3, Universiti Teknologi MARA Puncak Alam Campus, 42300, Bandar Puncak Alam, Selangor, Malaysia
| | - Nor Hadiani Ismail
- Atta-ur-Rahman Institute for Natural Products Discovery, Level 9, FF3, Universiti Teknologi MARA Puncak Alam Campus, 42300, Bandar Puncak Alam, Selangor, Malaysia.
| | - Siti Nadiah Abdul Halim
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Chung Yeng Looi
- Department of Pharmacology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia; Faculty of Health and Medical Sciences, School of Biosciences, Taylor's University Lakeside Campus, 47500, Subang Jaya, Malaysia
| | - El Hassane Anouar
- Chemistry Department, College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University, P.O. Box 83, 11942, Al Kharj, Saudi Arabia
| | - Moses K Langat
- Natural Products Research Group, Department of Chemistry, University of Surrey, Guildford, GU2 7XH, Surrey, United Kingdom; School of Chemistry and Physics, University of Natal, Durban, 4041, South Africa
| | - Dulcie Mulholland
- Natural Products Research Group, Department of Chemistry, University of Surrey, Guildford, GU2 7XH, Surrey, United Kingdom; School of Chemistry and Physics, University of Natal, Durban, 4041, South Africa
| | - Khalijah Awang
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
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47
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Yang GC, Hu JH, Li BL, Liu H, Wang JY, Sun LX. Six New neo-Clerodane Diterpenoids from Aerial Parts of Scutellaria barbata and Their Cytotoxic Activities. Planta Med 2018; 84:1292-1299. [PMID: 29925100 DOI: 10.1055/a-0638-8255] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Six new neo-clerodane diterpenoids (1: -6: ), scutebatas X - Z, A1-C1, along with twelve known ones (7: -18: ) were obtained via the phytochemical investigation of the aerial parts of Scutellaria barbata. Their structures were established by detailed spectroscopic analysis. The absolute configurations of 1: and 2: , as the representative members of this type, were identified based on a circular dichroic exciton chirality method. Moreover, in vitro cytotoxicity of compounds 1: -6: were evaluated against three human cancer cell lines (SGC-7901, MCF-7, and A-549) using the MTT method. Compound 6: showed cytotoxic activities against all the three cell lines with IC50 values of 17.9, 29.9, and 35.7 µM, respectively.
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Affiliation(s)
- Guo-Chun Yang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Jia-Hui Hu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Bing-Long Li
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
- School of Pharmacy, Taishan Medical University, Tai'an, P. R. China
| | - Huan Liu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Jia-Yue Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Li-Xin Sun
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
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48
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Li Y, Zhu R, Zhang J, Wu X, Shen T, Zhou J, Qiao Y, Gao Y, Lou H. Clerodane diterpenoids from the Chinese liverwort Jamesoniella autumnalis and their anti-inflammatory activity. Phytochemistry 2018; 154:85-93. [PMID: 30029024 DOI: 10.1016/j.phytochem.2018.06.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/26/2018] [Accepted: 06/18/2018] [Indexed: 06/08/2023]
Abstract
Nine previously undescribed clerodane-type diterpenoids, jamesoniellides M-T and one ent-labdane-type diterpenoid, as well as one known analogue, were isolated from the Chinese liverwort Jamesoniella autumnalis (DC.) Stephani. Their structures were determined using MS, NMR spectroscopy, and electronic circular dichroism (ECD) calculations. Inhibition on LPS-induced NO production in RAW 264.7 murine macrophages was investigated, and the results showed that jamesoniellides Q-S exhibited moderate anti-inflammatory activity, with 50-80% maximum inhibition rate of NO production under the nontoxic tested concentration.
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Affiliation(s)
- Yi Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Rongxiu Zhu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250010, People's Republic of China
| | - Jiaozhen Zhang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Xueyi Wu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Tao Shen
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Jinchuan Zhou
- School of Pharmacy, Linyi University, Linyi 276000, People's Republic of China
| | - Yanan Qiao
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Yun Gao
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Hongxiang Lou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China.
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49
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Ardiles A, Barrientos R, Simirgiotis MJ, Bórquez J, Sepúlveda B, Areche C. Gastroprotective Activity of Parastrephia quadrangularis (Meyen), Cabrera from the Atacama Desert. Molecules 2018; 23:molecules23092361. [PMID: 30223578 PMCID: PMC6225235 DOI: 10.3390/molecules23092361] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/07/2018] [Accepted: 09/14/2018] [Indexed: 12/19/2022] Open
Abstract
Forty-three metabolites including several methoxylated flavonoids, tremetones, and ent-clerodane diterpenes were accurately identified for the first time in the ethanolic extract of P. quadrangularis by means of hyphenated UHPLC-quadrupole Orbitrap mass spectrometry, and seven isolated compounds were tested regarding gastroprotective activity using the HCl/EtOH-induced lesion model in mice. A new tremetone (compound 6) is reported based on spectroscopic evidence. The isolated clerodanes and tremetones showed gastroprotective activity in a mouse model, evidenced by compound 7 (p-coumaroyloxytremetone), which showed the highest gastroprotective activity (76%), which was higher than the control drug lansoprazole (72%). Our findings revealed that several constituents of this plant have gastroprotective activity, and particularly, p-coumaroyloxytremetone could be considered as a lead molecule to explore new gastroprotective agents. This plant is a rich source of biologically active tremetones and terpenoids which can support the ethnobotanical use of the plant.
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Affiliation(s)
- Alejandro Ardiles
- Departamento de Química y Farmacia, Facultad de Ciencias, Universidad Católica del Norte, Angamos 0610, Antofagasta 1240000, Chile.
| | - Ruth Barrientos
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Casilla 567, Valdivia 5090000, Chile.
| | - Mario J Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Casilla 567, Valdivia 5090000, Chile.
- Center for Interdisciplinary Studies on the Nervous System (CISNe), Universidad Austral de Chile, Valdivia 5090000, Chile.
| | - Jorge Bórquez
- Laboratorio de Productos Naturales, Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta 1240000, Chile.
| | - Beatriz Sepúlveda
- Departamento de Ciencias Químicas, Universidad Andres Bello, Campus Viña del Mar, Quillota 980, Viña del Mar 2520000, Chile.
| | - Carlos Areche
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago 8320198, Chile.
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Hirasawa S, Cho M, Brust TF, Roach JJ, Bohn LM, Shenvi RA. O6C-20-nor-salvinorin A is a stable and potent KOR agonist. Bioorg Med Chem Lett 2018; 28:2770-2772. [PMID: 29426768 PMCID: PMC6067998 DOI: 10.1016/j.bmcl.2018.01.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 01/23/2018] [Accepted: 01/26/2018] [Indexed: 11/18/2022]
Abstract
Salvinorin A (SalA) is a potent and selective agonist of the kappa-opioid receptor (KOR), but its instability has frustrated medicinal chemistry efforts. Treatment of SalA with weak bases like DBU leads to C8 epimerization with loss of receptor affinity and signaling potency. Here we show that replacement of C20 with H and replacement of O6 with CH2 stabilizes the SalA scaffold relative to its C8 epimer, so much so that epimerization is completely supressed. This new compound, O6C-20-nor-SalA, retains high potency for agonism of KOR.
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Affiliation(s)
- Shun Hirasawa
- The Scripps Research Institute, Department of Chemistry, La Jolla, CA 92037, United States
| | - Min Cho
- The Scripps Research Institute, Department of Chemistry, La Jolla, CA 92037, United States
| | - Tarsis F Brust
- The Scripps Research Institute, Departments of Molecular Medicine and Neuroscience,Jupiter, FL 33458, United States
| | - Jeremy J Roach
- The Scripps Research Institute, Department of Chemistry, La Jolla, CA 92037, United States
| | - Laura M Bohn
- The Scripps Research Institute, Departments of Molecular Medicine and Neuroscience,Jupiter, FL 33458, United States
| | - Ryan A Shenvi
- The Scripps Research Institute, Department of Chemistry, La Jolla, CA 92037, United States.
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