1
|
Zhan XQ, Wu Q, Wang MJ, Liu L, Cui WB, An FL, Qi FM, Fei DQ, Zhang ZX. A new diterpenoid from the leaves and twigs of Croton lachnocarpus Benth. Nat Prod Res 2024; 38:1184-1190. [PMID: 36260069 DOI: 10.1080/14786419.2022.2135002] [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: 08/01/2022] [Revised: 09/28/2022] [Accepted: 10/05/2022] [Indexed: 10/24/2022]
Abstract
A new clerodane diterpenoid, crotolanin A (1), along with three known clerodane diterpenoids, crotoeurin B (2), teucvidin (3) and teucvin (4), was isolated from the ethanol extract of the leaves and twigs of Croton lachnocarpus Benth. Their structures were identified by extensive NMR spectroscopic and HRESIMS analyses. The dopaminergic neuroprotective activity of compounds 1-4 was tested by using transgenic Caenorhabditis elegans pathological model. Compound 2 alleviated dopaminergic neuron degeneration of worms induced by 6-hydroxydopamine (6-OHDA) that represented a potential therapy for Parkinson's disease (PD).
Collapse
Affiliation(s)
- Xiao-Qing Zhan
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, People's Republic of China
| | - Qian Wu
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, People's Republic of China
| | - Mei-Jie Wang
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, People's Republic of China
| | - Li Liu
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, People's Republic of China
| | - Wen-Bo Cui
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, People's Republic of China
| | - Feng-Li An
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, People's Republic of China
| | - Feng-Ming Qi
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, People's Republic of China
| | - Dong-Qing Fei
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, People's Republic of China
| | - Zhan-Xin Zhang
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, People's Republic of China
| |
Collapse
|
2
|
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.
Collapse
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.
| |
Collapse
|
3
|
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.
Collapse
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.
| |
Collapse
|
4
|
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.
Collapse
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
| |
Collapse
|
5
|
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.
Collapse
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.
| |
Collapse
|
6
|
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.
Collapse
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.
| |
Collapse
|
7
|
Oda FB, Carvalho FA, Yamamoto PA, de Oliveira JA, Peccinini RG, Zocolo GJ, Ribeiro PRV, de Moraes NV, Dos Santos AG. Metabolism Characterization and Chemical and Plasma Stability of Casearin B and Caseargrewiin F. Planta Med 2023; 89:1097-1105. [PMID: 37084791 DOI: 10.1055/a-2078-5920] [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] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Oral preparations of Casearia sylvestris (guacatonga) are used as antacid, analgesic, anti-inflammatory, and antiulcerogenic medicines. The clerodane diterpenes casearin B and caseargrewiin F are major active compounds in vitro and in vivo. The oral bioavailability and metabolism of casearin B and caseargrewiin F were not previously investigated. We aimed to assess the stability of casearin B and caseargrewiin F in physiological conditions and their metabolism in human liver microsomes. The compounds were identified by UHPLC-QTOF-MS/MS and quantified by validated LC-MS methods. The stability of casearin B and caseargrewiin F in physiological conditions was assessed in vitro. Both diterpenes showed a fast degradation (p < 0.05) in simulated gastric fluid. Their metabolism was not mediated by cytochrome P-450 enzymes, but the depletion was inhibited by the esterase inhibitor NaF. Both diterpenes and their dialdehydes showed a octanol/water partition coefficient in the range of 3.6 to 4.0, suggesting high permeability. Metabolism kinetic data were fitted to the Michaelis-Menten profile with KM values of 61.4 and 66.4 µM and Vmax values of 327 and 648 nmol/min/mg of protein for casearin B and caseargrewiin F, respectively. Metabolism parameters in human liver microsomes were extrapolated to predict human hepatic clearance, and suggest that caseargrewiin F and casearin B have a high hepatic extraction ratio. In conclusion, our data suggest that caseargrewiin F and casearin B present low oral bioavailability due to extensive gastric degradation and high hepatic extraction.
Collapse
Affiliation(s)
- Fernando Bombarda Oda
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (Unesp), Araraquara, SP, Brazil
| | - Flávio Alexandre Carvalho
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (Unesp), Araraquara, SP, Brazil
| | - Priscila Akemi Yamamoto
- Center of Pharmacometrics & Systems Pharmacology, Department of Pharmaceutics, College of Pharmacy, University of Florida, Orlando, FL, USA
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Palo (USP), Ribeirão Preto, SP, Brazil
| | - Jonata Augusto de Oliveira
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (Unesp), Araraquara, SP, Brazil
| | - Rosângela Gonçalves Peccinini
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (Unesp), Araraquara, SP, Brazil
| | - Guilherme Julião Zocolo
- Embrapa Agroindústria Tropical, Empresa Brasileira de Pesquisa Agropecuária (Embrapa), Fortaleza, CE, Brazil
| | | | - Natália Valadares de Moraes
- Center of Pharmacometrics & Systems Pharmacology, Department of Pharmaceutics, College of Pharmacy, University of Florida, Orlando, FL, USA
| | - André Gonzaga Dos Santos
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (Unesp), Araraquara, SP, Brazil
| |
Collapse
|
8
|
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.
Collapse
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
| |
Collapse
|
9
|
Li H, Wu S, Lin R, Xiao Y, Malaco Morotti AL, Wang Y, Galilee M, Qin H, Huang T, Zhao Y, Zhou X, Yang J, Zhao Q, Kanellis AK, Martin C, Tatsis EC. The genomes of medicinal skullcaps reveal the polyphyletic origins of clerodane diterpene biosynthesis in the family Lamiaceae. Mol Plant 2023; 16:549-570. [PMID: 36639870 DOI: 10.1016/j.molp.2023.01.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 11/21/2022] [Accepted: 01/09/2023] [Indexed: 06/09/2023]
Abstract
The presence of anticancer clerodane diterpenoids is a chemotaxonomic marker for the traditional Chinese medicinal plant Scutellaria barbata, although the molecular mechanisms behind clerodane biosynthesis are unknown. Here, we report a high-quality assembly of the 414.98 Mb genome of S. barbata into 13 pseudochromosomes. Using phylogenomic and biochemical data, we mapped the plastidial metabolism of kaurene (gibberellins), abietane, and clerodane diterpenes in three species of the family Lamiaceae (Scutellaria barbata, Scutellaria baicalensis, and Salvia splendens), facilitating the identification of genes involved in the biosynthesis of the clerodanes, kolavenol, and isokolavenol. We show that clerodane biosynthesis evolved through recruitment and neofunctionalization of genes from gibberellin and abietane metabolism. Despite the assumed monophyletic origin of clerodane biosynthesis, which is widespread in species of the Lamiaceae, our data show distinct evolutionary lineages and suggest polyphyletic origins of clerodane biosynthesis in the family Lamiaceae. Our study not only provides significant insights into the evolution of clerodane biosynthetic pathways in the mint family, Lamiaceae, but also will facilitate the production of anticancer clerodanes through future metabolic engineering efforts.
Collapse
Affiliation(s)
- Haixiu Li
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Song Wu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruoxi Lin
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yiren Xiao
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ana Luisa Malaco Morotti
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Ya Wang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meytal Galilee
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Haowen Qin
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Tao Huang
- Novogene Bioinformatics Institute, Beijing, China
| | - Yong Zhao
- Novogene Bioinformatics Institute, Beijing, China
| | - Xun Zhou
- Novogene Bioinformatics Institute, Beijing, China
| | - Jun Yang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai 201602, China
| | - Qing Zhao
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai 201602, China
| | - Angelos K Kanellis
- Group of Biotechnology of Pharmaceutical Plants, Lab. of Pharmacognosy, Department of Pharmaceutical Sciences, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | | | - Evangelos C Tatsis
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; CEPAMS - CAS-JIC Centre of Excellence for Plant and Microbial Sciences, Shanghai 200032, China.
| |
Collapse
|
10
|
Li W, Gan L, Yuan FY, Sang J, Huang D, Yin AP, Pu R, Tang GH, Guo D, Yin S. Biscroyunoid A, an Anti-Hepatic Fibrotic 19- nor-Clerodane Diterpenoid Dimer with a C-16-C-12' Linkage from Croton yunnanensis. J Nat Prod 2023; 86:434-439. [PMID: 36792549 DOI: 10.1021/acs.jnatprod.2c01054] [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: 06/18/2023]
Abstract
Biscroyunoid A (1), a 19-nor-clerodane diterpenoid dimer featuring a unique C-16-C-12' linkage and containing an unusual 4,7-dihydro-5H-spiro[benzofuran-6,1'-cyclohexane] motif, together with its biosynthetic precursor, croyunoid A (2), were isolated from Croton yunnanensis. Their structures were determined by spectroscopic, computational, and single-crystal X-ray diffraction methods. Compound 1 exerted an antihepatic fibrosis effect in LX-2 cells via inhibition of TGFβ-Smad2/3 signaling.
Collapse
Affiliation(s)
- Wei Li
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, People's Republic of China
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Lu Gan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Fang-Yu Yuan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Jun Sang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Dong Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Ai-Ping Yin
- Department of Clinical Laboratory, The Third People's Hospital of Dongguan, Dongguan 523326, People's Republic of China
| | - Rong Pu
- Department of Clinical Laboratory, The Third People's Hospital of Dongguan, Dongguan 523326, People's Republic of China
| | - Gui-Hua Tang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Dean Guo
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, People's Republic of China
| | - Sheng Yin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| |
Collapse
|
11
|
Jiang ZY, Liu CJ, Niu Q, Yan XY, Xiao D, Zhang HL, Huang CQ, Shi SL, Zuo AX, He HP. In Vitro Hypoglycemic Diterpenoids from the Roots of Croton yunnanensis. J Nat Prod 2023; 86:199-208. [PMID: 36635870 DOI: 10.1021/acs.jnatprod.2c00970] [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: 06/17/2023]
Abstract
Fifteen compounds including nine new diterpenes were isolated from the roots of Croton yunnanensis. By HRESIMS, NMR, ECD data, and X-ray diffraction analysis, the new compounds were characterized as eight neo-clerodane diterpenes (compounds 1-8) and one 15,16-dinor-ent-pimarane diterpene (9). All diterpenes were assayed for their hypoglycemic activities. Compounds 1-4, 6, 7, and 10 promoted glucose uptake activity in insulin-resistant 3T3-L1 adipocytes. Compounds 1 and 6 showed insulin sensitizing activity, potentiating conspicuously their glucose uptake activity at a concentration of 20 μM when treated synergistically with low-concentration insulin at 1 nM.
Collapse
Affiliation(s)
- Zhi-Yong Jiang
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
- Key Laboratory of Modern Research on Ethnic Medicine in Colleges of Yunnan Province, Kunming 650500, Yunnan, People's Republic of China
| | - Chun-Jiang Liu
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
| | - Qi Niu
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
| | - Xin-Yu Yan
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
| | - Die Xiao
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
| | - Hong-Lei Zhang
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
| | - Chun-Qiu Huang
- Yunnan Phytopharmaceutical Co. Ltd., Kunming 650505, Yunnan, People's Republic of China
| | - Sheng-Li Shi
- College of Chemical Biology & Enviromeny, Yuxi Normal University, Yuxi 653100, Yunnan, People's Republic of China
| | - Ai-Xue Zuo
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
| | - Hong-Ping He
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
- Key Laboratory of Modern Research on Ethnic Medicine in Colleges of Yunnan Province, Kunming 650500, Yunnan, People's Republic of China
| |
Collapse
|
12
|
Puls K, Wolber G. Solving an Old Puzzle: Elucidation and Evaluation of the Binding Mode of Salvinorin A at the Kappa Opioid Receptor. Molecules 2023; 28:molecules28020718. [PMID: 36677775 PMCID: PMC9861206 DOI: 10.3390/molecules28020718] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 10/26/2022] [Revised: 12/07/2022] [Accepted: 12/16/2022] [Indexed: 01/13/2023] Open
Abstract
The natural product Salvinorin A (SalA) was the first nitrogen-lacking agonist discovered for the opioid receptors and exhibits high selectivity for the kappa opioid receptor (KOR) turning SalA into a promising analgesic to overcome the current opioid crisis. Since SalA's suffers from poor pharmacokinetic properties, particularly the absence of gastrointestinal bioavailability, fast metabolic inactivation, and subsequent short duration of action, the rational design of new tailored analogs with improved clinical usability is highly desired. Despite being known for decades, the binding mode of SalA within the KOR remains elusive as several conflicting binding modes of SalA were proposed hindering the rational design of new analgesics. In this study, we rationally determined the binding mode of SalA to the active state KOR by in silico experiments (docking, molecular dynamics simulations, dynophores) in the context of all available mutagenesis studies and structure-activity relationship (SAR) data. To the best of our knowledge, this is the first comprehensive evaluation of SalA's binding mode since the determination of the active state KOR crystal structure. SalA binds above the morphinan binding site with its furan pointing toward the intracellular core while the C2-acetoxy group is oriented toward the extracellular loop 2 (ECL2). SalA is solely stabilized within the binding pocket by hydrogen bonds (C210ECL2, Y3127.35, Y3137.36) and hydrophobic contacts (V1182.63, I1393.33, I2946.55, I3167.39). With the disruption of this interaction pattern or the establishment of additional interactions within the binding site, we were able to rationalize the experimental data for selected analogs. We surmise the C2-substituent interactions as important for SalA and its analogs to be experimentally active, albeit with moderate frequency within MD simulations of SalA. We further identified the non-conserved residues 2.63, 7.35, and 7.36 responsible for the KOR subtype selectivity of SalA. We are confident that the elucidation of the SalA binding mode will promote the understanding of KOR activation and facilitate the development of novel analgesics that are urgently needed.
Collapse
|
13
|
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.
Collapse
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
| |
Collapse
|
14
|
Udomputtimekakul P, Pompimon W, Chainok K, Jiajaroen S, Meepowpan P, Tata S, Tasit P, Rithchumpon P, Nuntasaen N. Krabasinolide A with anti-HIVs activity from the leaves and twigs of Croton krabas. J Asian Nat Prod Res 2022; 24:761-768. [PMID: 34592877 DOI: 10.1080/10286020.2021.1972979] [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: 01/18/2021] [Revised: 08/10/2021] [Accepted: 08/15/2021] [Indexed: 06/13/2023]
Abstract
One new clerodane-type diterpenoid, together with one known, was isolated from the leaves and twigs of C. krabas. The structures of these compounds were elucidated as krabasinolide A (1) and taraxerol (2) by spectroscopic methods (UV, IR, HRESIMS, 1 D, and 2 D NMR), and the relative stereochemistry was confirmed by X-ray diffraction analysis with graphite monochromated Mo-Kα (λ = 0.71073 Å) radiation at 296(2) K. Extracts and compounds 1-2 were evaluated for in vitro antiviral activity.
Collapse
Affiliation(s)
- Phansuang Udomputtimekakul
- Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Thailand
| | - Wilart Pompimon
- Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Thailand
| | - Kittipong Chainok
- Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Pathum Thani 12121, Thailand
| | - Suwadee Jiajaroen
- Division of Chemistry, Faculty of Science and Technology, Thammasat University, Pathum Thani 12121, Thailand
| | - Puttinan Meepowpan
- Department of Chemistry, and Center for Innovation in Chemistry, Faculty of Science, Chiang Mai 50300 University, Chiang Mai, Thailand
| | - Saranchana Tata
- Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Thailand
| | - Phatra Tasit
- Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Thailand
| | - Puracheth Rithchumpon
- Department of Chemistry, and Center for Innovation in Chemistry, Faculty of Science, Chiang Mai 50300 University, Chiang Mai, Thailand
| | - Narong Nuntasaen
- The Forest Herbarium, Department of National Park, Wildlife and Plant Conservation, Ministry of Natural Resources and Environment, Bangkok 10900, Thailand
| |
Collapse
|
15
|
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.
Collapse
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.)
| |
Collapse
|
16
|
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.
Collapse
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
| |
Collapse
|
17
|
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.
Collapse
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)
| |
Collapse
|
18
|
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.
Collapse
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
| |
Collapse
|
19
|
Gardner DR, Panter KE, Stegelmeier BL, Stonecipher CA. Hepatotoxicity in Cattle Associated with Salvia reflexa Diterpenes, including 7-Hydroxyrhyacophiline, a New Seco-Clerodane Diterpene. J Agric Food Chem 2021; 69:1251-1258. [PMID: 33476164 DOI: 10.1021/acs.jafc.0c06390] [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] [Indexed: 06/12/2023]
Abstract
A case of baled alfalfa hay contaminated with multiple weeds induced hepatotoxicity and death in cattle. The hepatotoxic compounds were isolated by bioassay-guided fractionation using a mouse model and identified as salviarin, salvianduline D, rhyacophiline, and 7-hydroxyrhyacophiline. The structure of 7-hydroxyrhyacophiline has not been previously reported. All compounds were found to induce severe acute hepatic necrosis within 24-48 h after a single oral dosage (260-280 mg/kg). The identified diterpenes are known to be found among different Salvia species which led to finding dried plant parts of Salvia reflexa within bales of weedy hay and subsequently a population of S. reflexa was found along the field edges and irrigation ditch banks of the alfalfa hay field. It was thus determined that S. reflexa was responsible for the hepatotoxicity observed in cattle fed the contaminated hay.
Collapse
Affiliation(s)
- Dale R Gardner
- U.S. Department of Agriculture, Agricultural Research Service, Poisonous Plant Research Laboratory, 1150 E 1400 N, Logan, Utah 84341, United States
| | - Kip E Panter
- U.S. Department of Agriculture, Agricultural Research Service, Poisonous Plant Research Laboratory, 1150 E 1400 N, Logan, Utah 84341, United States
| | - Bryan L Stegelmeier
- U.S. Department of Agriculture, Agricultural Research Service, Poisonous Plant Research Laboratory, 1150 E 1400 N, Logan, Utah 84341, United States
| | - Clinton A Stonecipher
- U.S. Department of Agriculture, Agricultural Research Service, Poisonous Plant Research Laboratory, 1150 E 1400 N, Logan, Utah 84341, United States
| |
Collapse
|
20
|
Zhang LT, Wang XL, Wang T, Zhang JS, Huang ZQ, Shen T, Lou HX, Ren DM, Wang XN. Dolabellane and Clerodane Diterpenoids from the Twigs and Leaves of Casearia kurzii. J Nat Prod 2020; 83:2817-2830. [PMID: 33001650 DOI: 10.1021/acs.jnatprod.9b00427] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
A pair of enantiomeric 15-nordolabellane diterpenoids, (-)- and (+)-caseadolabellols A (1a and 1b), three dolabellane diterpenoids, caseadolabellols B-D (2-4), two dolastane diterpenoids, caseadolastols A and B (5 and 6), 10 clerodane diterpenoids, caseakurzins A-J (7-16), and nine known diterpenoids (17-25) were isolated from the twigs and leaves of Casearia kurzii. The structures of the new compounds were established on the basis of extensive spectroscopic data, and those of compounds 1a, 1b, and 2 were verified by single-crystal X-ray crystallographic analysis. The enantiomers 1a and 1b were separated by chiral-phase HPLC. The absolute configurations were determined by experimental and calculated ECD data, the modified Mosher's method, or literature comparison. Compounds 1a and 5 showed significant quinone reductase-inducing activity in Hepa 1c1c7 cells, while 1b showed moderate activity. Molecular docking studies showed that 1a had greater binding affinity with Nrf2 protein (5FNQ) than 1b. The cytotoxic activity of compounds 1a, 1b, 2-12, 15, and 16 was evaluated, among which compounds 8 and 16 exhibited significant inhibitory activity against the A549 cell line. Compounds 8 and 16 induced the A549 cells to arrest at G2/M and S phases, respectively, and both compounds induced apoptosis in A549 cells.
Collapse
Affiliation(s)
- Long-Teng Zhang
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wen-Hua Road, Jinan 250012, People's Republic of China
| | - Xiao-Ling Wang
- The Second Hospital, Cheeloo College of Medicine, Shandong University, 247 Bei-Yuan Street, Jinan 250033, People's Republic of China
| | - Tian Wang
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wen-Hua Road, Jinan 250012, People's Republic of China
| | - Jun-Sheng Zhang
- School of Biological Science and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, People's Republic of China
| | - Zhu-Qing Huang
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wen-Hua Road, Jinan 250012, People's Republic of China
| | - Tao Shen
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wen-Hua Road, Jinan 250012, People's Republic of China
| | - Hong-Xiang Lou
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wen-Hua Road, Jinan 250012, People's Republic of China
| | - Dong-Mei Ren
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wen-Hua Road, Jinan 250012, People's Republic of China
| | - Xiao-Ning Wang
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wen-Hua Road, Jinan 250012, People's Republic of China
| |
Collapse
|
21
|
Hanthanong S, Choodej S, Aree T, Pudhom K. Two new rearranged clerodane diterpenes from Thai Tinospora baenzigeri. J Nat Med 2020; 75:201-206. [PMID: 32970255 DOI: 10.1007/s11418-020-01450-5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 09/14/2020] [Indexed: 11/26/2022]
Abstract
A new rearranged clerodane-type diterpene (1), tinobaenzigeride, and a new rearranged clerodane glucoside (2) were isolated from the stems of Tinospora baenzigeri, along with four known compounds (3‒6). Their structures were elucidated by spectroscopic data analysis. In addition, the structure and configuration of 1 was confirmed by single-crystal X-ray diffraction analysis. Compound 1 are a rare example of rearranged clerodanes, since it contains a fully oxygenated tetrahydrofuran moiety. The isolated compounds were evaluated for their cytotoxicity against Hep-G2 and MCF-7 cancer cells, none of them did show any significant activity at 25 μM.
Collapse
Affiliation(s)
- Sujitra Hanthanong
- Graduate Program in Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Siwattra Choodej
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thammarat Aree
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Khanitha Pudhom
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.
| |
Collapse
|
22
|
Danuello A, de Castro RC, Pilon AC, Bueno PCP, Pivatto M, Vieira Júnior GM, Carvalho FA, Oda FB, Perez CJ, Lopes NP, Dos Santos AG, Ifa DR, Cavalheiro AJ. Fragmentation study of clerodane diterpenes from Casearia species by tandem mass spectrometry (quadrupole time-of-flight and ion trap). Rapid Commun Mass Spectrom 2020; 34 Suppl 3:e8781. [PMID: 32157723 DOI: 10.1002/rcm.8781] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 02/27/2020] [Accepted: 03/08/2020] [Indexed: 06/10/2023]
Abstract
RATIONALE Clerodane-type diterpenes from Casearia species show important pharmacological activites such as antitumor, antimicrobial and anti-inflamatory. There are several mass spectrometry (MS)-based methods for identification of diterpenes; however, there is still a lack of MS procedures capable of providing characteristic fragmentation pathways for a rapid and unambiguous elucidation of casearin-like compounds. METHODS Casearin-like compounds were investigated by electrospray ionization tandem mass spectrometry (ESI-MS/MS). The fragmentation studies were carried out by tandem mass spectrometry in space (quadrupole time-of-flight (QTOF)) using different collision energies and also by tandem mass spectrometry in time (QIT) by selective isolation of product ions. RESULTS Casearin-like compounds presented a predominance of sodium- and potassium-cationized precursor ions. Both QIT and QTOF techniques provided sequential neutral losses of esters related to the R1 to R5 substituents linked to the nucleus of the clerodane diterpenes. The fragmentation pathway is initiated with a cleavage of the ester moieties R2 followed by the elimination of the ester groups R3 , both losing neutral carboxylic acids. Using QIT, it was also possible to observe the cleavage of the ester groups R1 or R5 by MS4 experiments. CONCLUSIONS Through a rational analysis of the fragmentation mechanisms of Casearia diterpenes it was possible to suggest an annotation strategy based on the sequential cleavages of the ester groups related to the R2 , R3 and R5 substituents. These results will assist studies of the dereplication and metabolomics involving casearin-like compounds present in complex extracts of Casearia species.
Collapse
Affiliation(s)
- Amanda Danuello
- Ribeirão Preto School of Pharmaceutical Science, University of Sao Paulo, Ribeirão Preto, São Paulo, Brazil
- Institute of Chemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Rogério Cardoso de Castro
- Laboratory of Pharmacognosy, School of Pharmaceutical Sciences, São Paulo State University, Araraquara, São Paulo, Brazil
- Centre for Research in Mass Spectrometry, Department of Chemistry, York University, Toronto, Ontario, Canada
| | - Alan Cesar Pilon
- Ribeirão Preto School of Pharmaceutical Science, University of Sao Paulo, Ribeirão Preto, São Paulo, Brazil
- Institute of Chemistry, São Paulo State University, Araraquara, São Paulo, Brazil
- Department of Life Sciences, Imperial College London, Silwood Park Campus, Ascot, Berkshire, UK
| | - Paula Carolina Pires Bueno
- Ribeirão Preto School of Pharmaceutical Science, University of Sao Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Marcos Pivatto
- Institute of Chemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | | | - Flávio Alexandre Carvalho
- Laboratory of Pharmacognosy, School of Pharmaceutical Sciences, São Paulo State University, Araraquara, São Paulo, Brazil
| | - Fernando Bombarda Oda
- Laboratory of Pharmacognosy, School of Pharmaceutical Sciences, São Paulo State University, Araraquara, São Paulo, Brazil
| | - Consuelo Javiera Perez
- Centre for Research in Mass Spectrometry, Department of Chemistry, York University, Toronto, Ontario, Canada
| | - Norberto Peporine Lopes
- Ribeirão Preto School of Pharmaceutical Science, University of Sao Paulo, Ribeirão Preto, São Paulo, Brazil
| | - André Gonzaga Dos Santos
- Laboratory of Pharmacognosy, School of Pharmaceutical Sciences, São Paulo State University, Araraquara, São Paulo, Brazil
| | - Demian Rocha Ifa
- Centre for Research in Mass Spectrometry, Department of Chemistry, York University, Toronto, Ontario, Canada
| | | |
Collapse
|
23
|
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.
Collapse
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
| |
Collapse
|
24
|
Rivera-Chávez J, Bustos-Brito C, Aguilar-Ramírez E, Martínez-Otero D, Rosales-Vázquez LD, Dorazco-González A, Cano-Sánchez P. Hydroxy- neo-Clerodanes and 5,10- seco- neo-Clerodanes from Salvia decora. J Nat Prod 2020; 83:2212-2220. [PMID: 32597650 DOI: 10.1021/acs.jnatprod.0c00313] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Preliminary analysis of the mass spectrometric (MS) and NMR spectroscopic data of the primary fractions from the biologically active extract of Salvia decora revealed spectra that are characteristic for neo-clerodane-type diterpenoids. MS-guided isolation of the bioactive fractions led to the isolation of three new chemical entities, including two hydroxy-neo-clerodanes (1 and 2) and one acylated 5,10-seco-neo-clerodane (3), along with three known diterpenoids (4-6), ursolic acid (7), and eupatorin (8). The structures of the new compounds were established by analysis of the 1D and 2D NMR and MS data, whereas their absolute configuration was deduced using a combination of experimental and theoretical ECD data and confirmed by X-ray crystallography (1 and 4). Furthermore, compounds 1, 3, 4, and 6-8 were evaluated as hPTP1B1-400 (human protein tyrosine phosphatase) inhibitors, where 7 showed the best activity, with an IC50 value in the lower μM range. Additionally, compound 7 was evaluated as an α-glucosidase inhibitor. The affinity constant of the 7-hPTP1B1-400 complex was determined by quenching fluorescence experiments (ka = 1.3 × 104 M-1), while the stoichiometry ratio (1:1 protein-ligand) was determined by a continuous variation method.
Collapse
Affiliation(s)
- José Rivera-Chávez
- Departamento de Productos Naturales, Instituto de Quı́mica, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| | - Celia Bustos-Brito
- Departamento de Productos Naturales, Instituto de Quı́mica, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| | - Enrique Aguilar-Ramírez
- Departamento de Productos Naturales, Instituto de Quı́mica, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| | - Diego Martínez-Otero
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco, Toluca, 50200, Mexico
| | - Luis D Rosales-Vázquez
- Departamento de Quı́mica Inorgánica, Instituto de Quı́mica, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| | - Alejandro Dorazco-González
- Departamento de Quı́mica Inorgánica, Instituto de Quı́mica, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| | - Patricia Cano-Sánchez
- Departamento de Quı́mica de Biomacromoléculas, Instituto de Quı́mica, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| |
Collapse
|
25
|
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.
Collapse
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
| |
Collapse
|
26
|
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.
Collapse
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.
| |
Collapse
|
27
|
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.
Collapse
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.
| |
Collapse
|
28
|
Wang R, Fan RZ, Ni FQ, Sang J, Xie XL, Luo SY, Tang GH, Yin S. 19- nor-, 20- nor-, and tetranor-Halimane-Type Furanoditerpenoids from Croton crassifolius. J Nat Prod 2020; 83:255-267. [PMID: 32003565 DOI: 10.1021/acs.jnatprod.9b00634] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The phytochemical investigation of the roots of Croton crassifolius led to the isolation of 16 new halimane furanoditerpenoids, crohalifuranes A-P (1-16), along with 15 known analogues, 17-31. The new structures including their absolute configurations were elucidated by NMR and MS data analysis, comparison of experimental and calculated electronic circular dichroism data, single-crystal X-ray diffraction data, and chemical methods. Crohalifuranes A (1) and B (2) are tetranor- and 19-nor-halimane diterpenoids featuring a rare decahydroacenaphthene core, respectively, which might be derived from the accompanying crassifoliusin A by loss of the furan ring or the C-19 substituent. Crohalifurane C (3) represents the first example of a 20-nor-halimane diterpenoid, and crohalifurane D (4) is characterized by an unusual 6,20-δ-lactone moiety. All compounds were examined for their inhibitory effects on nitric oxide (NO) production induced by lipopolysaccharide in RAW264.7 cells, and 2 and 23 exhibited moderate inhibition on NO production with IC50 values of 17.2 ± 1.3 and 23.7 ± 1.4 μM, respectively.
Collapse
Affiliation(s)
- Rong Wang
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Run-Zhu Fan
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Fu-Qiang Ni
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Jun Sang
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Xing-Lin Xie
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Si-Yuan Luo
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Gui-Hua Tang
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Sheng Yin
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| |
Collapse
|
29
|
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.
Collapse
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
| |
Collapse
|
30
|
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.
Collapse
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.
| |
Collapse
|
31
|
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.
Collapse
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
| |
Collapse
|
32
|
Abstract
Four new rearranged clerodane-type diterpenoids (1-4), a new glucoside (5), and six known compounds (6-11) were obtained from the EtOAc crude extract of Tinospora baenzigeri stem. The structures of the new compounds were elucidated by interpreting their spectroscopic data, particularly 1D and 2D NMR. Single-crystal X-ray diffraction analysis was subsequently performed to confirm the structures and relative configurations of compounds 1-4. These compounds are rare examples of rearranged clerodanes, particularly compound 4, possessing a fully oxidized tetrahydrofuranyl ring. The isolated compounds were assayed for their protective effect against N-acetyl- p-aminophenol (APAP)-induced HepG2 cell damage. Compounds 8, 9, and 11 showed hepatoprotective activity at 10 μM with 17.0, 19.2, and 39.0% inhibition, respectively, whereas rearranged clerodanes (1-3 and 5) were weakly active.
Collapse
Affiliation(s)
| | | | - Thapong Teerawatananond
- Faculty of Science and Technology , Valaya Alongkorn Rajabhat University under Royal Patronage , Pathumtani 13138 , Thailand
| | | |
Collapse
|
33
|
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.
Collapse
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.
| |
Collapse
|
34
|
Moreira da Silva R, de Gaitani CM, Marques LMM, Fraige Baraco K, Cavalheiro AJ, de Moraes LAB, Lopes NP, de Oliveira ARM. Characterization of Casearin X Metabolism by Rat and Human Liver Microsomes. Planta Med 2019; 85:282-291. [PMID: 30372780 DOI: 10.1055/a-0765-9523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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
Casearin X (CAS X) is the major clerodane diterpene isolated from the leaves of Casearia sylvestris and has been extensively studied due to its powerful cytotoxic activity at low concentrations. Promising results for in vivo antitumor action have also been described when CAS X was administered intraperitoneally in mice. Conversely, loss of activity was observed when orally administered. Since the advancement of natural products as drug candidates requires satisfactory bioavailability for their pharmacological effect, this work aimed to characterize the CAS X metabolism by employing an in vitro microsomal model for the prediction of preclinical pharmacokinetic data. Rat and human liver microsomes were used to assess species differences. A high-performance liquid chromatography with diode-array detection (HPLC-DAD) method for the quantification of CAS X in microsomes was developed and validated according to European Medicines Agency guidelines. CAS X was demonstrated to be a substrate for carboxylesterases via hydrolysis reaction, with a Michaelis-Menten kinetic profile. The enzyme kinetic parameters were determined, and the intrinsic clearance was 1.7-fold higher in humans than in rats. The hepatic clearance was estimated by in vitro-in vivo extrapolation, resulting in more than 90% of the hepatic blood flow for both species. A qualitative study was also carried out for the metabolite identification by mass spectrometry and indicated the formation of the inactive metabolite CAS X dialdehyde. These findings demonstrate that CAS X is susceptible to first-pass metabolism and is a substrate for specific carboxylesterases expressed in liver, which may contribute to a reduction in antitumor activity when administered by the oral route.
Collapse
Affiliation(s)
- Rodrigo Moreira da Silva
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos (NPPNS), Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
- Departamento do Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Cristiane Masetto de Gaitani
- Departamento do Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Lucas Maciel Mauriz Marques
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos (NPPNS), Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Karina Fraige Baraco
- Núcleo de Bioensaios, Biossíntese e Ecofisiologia de Produtos Naturais (NuBBE), Departamento de Química Orgânica, Instituto de Química, Universidade do Estado de São Paulo, Araraquara, SP, Brazil
| | - Alberto José Cavalheiro
- Núcleo de Bioensaios, Biossíntese e Ecofisiologia de Produtos Naturais (NuBBE), Departamento de Química Orgânica, Instituto de Química, Universidade do Estado de São Paulo, Araraquara, SP, Brazil
| | - Luiz Alberto Beraldo de Moraes
- Departamento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Norberto Peporine Lopes
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos (NPPNS), Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | | |
Collapse
|
35
|
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.
Collapse
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.
| |
Collapse
|
36
|
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.
Collapse
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
Collapse
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
| |
Collapse
|
37
|
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.
Collapse
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.
| |
Collapse
|
38
|
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.
Collapse
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.
| |
Collapse
|
39
|
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.
Collapse
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.
| |
Collapse
|
40
|
Roach JJ, Shenvi RA. A review of salvinorin analogs and their kappa-opioid receptor activity. Bioorg Med Chem Lett 2018; 28:1436-1445. [PMID: 29615341 PMCID: PMC5912166 DOI: 10.1016/j.bmcl.2018.03.029] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [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: 01/17/2018] [Revised: 03/09/2018] [Accepted: 03/12/2018] [Indexed: 12/23/2022]
Abstract
The plant metabolite salvinorin A potently and selectively agonizes the human kappa-opioid receptor, an emerging target for next-generation analgesics. Here we review analogs of the salvinorin chemotype and their effects on selectivity, affinity and potency. Extensive peripheral modifications using isolated salvinorin A have delivered a trove of SAR information. More deep-seated changes are now possible by advances in chemical synthesis.
Collapse
Affiliation(s)
- Jeremy J Roach
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Ryan A Shenvi
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, USA.
| |
Collapse
|
41
|
Noman MAA, Hossain T, Ahsan M, Jamshidi S, Hasan CM, Rahman KM. Crispenes F and G, cis-Clerodane Furanoditerpenoids from Tinospora crispa, Inhibit STAT3 Dimerization. J Nat Prod 2018; 81:236-242. [PMID: 29397715 DOI: 10.1021/acs.jnatprod.7b00377] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Two new cis-clerodane-type furanoditerpenes, crispenes F and G (1 and 2), together with seven known compounds, were isolated from the stems of Tinospora crispa. Crispenes F and G (1 and 2) inhibited STAT3 dimerization in a cell-free fluorescent polarization assay and were found to have significant cytotoxicity against a STAT3-dependent MDA-MB 231 breast cancer cell line, while being inactive in a STAT3-null A4 cell line. These two compounds share structural similarities with a previously reported STAT3 inhibitor, crispene E, isolated from the same plant. Molecular docking studies suggested that the molecules inhibit STAT3 by interacting with its SH2 domain.
Collapse
Affiliation(s)
- Md Abdullah Al Noman
- Department of Pharmaceutical Chemistry, University of Dhaka , Dhaka-1000, Bangladesh
| | - Tasnova Hossain
- Department of Pharmaceutical Chemistry, University of Dhaka , Dhaka-1000, Bangladesh
| | - Monira Ahsan
- Department of Pharmaceutical Chemistry, University of Dhaka , Dhaka-1000, Bangladesh
| | - Shirin Jamshidi
- School of Cancer and Pharmaceutical Science, King's College London , 150 Stamford Street, London SE1 9NH, U.K
| | | | - Khondaker Miraz Rahman
- School of Cancer and Pharmaceutical Science, King's College London , 150 Stamford Street, London SE1 9NH, U.K
| |
Collapse
|
42
|
Guetchueng ST, Nahar L, Ritchie KJ, Ismail FMD, Evans AR, Sarker SD. Ent-Clerodane Diterpenes from the Bark of Croton oligandrus Pierre ex Hutch. and Assessment of Their Cytotoxicity against Human Cancer Cell Lines. Molecules 2018; 23:molecules23020410. [PMID: 29438356 PMCID: PMC6017299 DOI: 10.3390/molecules23020410] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 12/27/2017] [Revised: 02/09/2018] [Accepted: 02/09/2018] [Indexed: 12/02/2022] Open
Abstract
New clerodane diterpenes, 12-epi-megalocarpodolide D (2) and an epimeric mixture of crotonolins A (3) and B (4), were isolated from the bark of Croton oligandrus following a bioassay-guided isolation protocol. Known compounds, megalocarpodolide D (1), 12-epi-crotocorylifuran (5), cluytyl-ferulate (6), hexacosanoyl- ferulate (7), vanillin (8), acetyl-aleuritolic acid (9) and lupeol (10), were also isolated. The structures of the isolated compounds (1–10) were elucidated by spectroscopic means. The cytotoxicity of compounds 1–10 was assessed against A549, MCF7, PC3 and PNT2 cell lines using the MTT assay. Compounds 1 and 2 showed moderate levels of activity against both A549 and MCF7 cells with 1 being the most active with IC50 values of 63.8 ± 13.8 and 136.2 ± 22.7 µM against A549 and MCF7 cells, respectively. The epimeric mixture of 3 and 4 was moderately active against A549 and PC3 cells (IC50 = 128.6 ± 31.0 and 111.2 ± 2.9 µM, respectively).
Collapse
Affiliation(s)
- Stephanie Tamdem Guetchueng
- Medicinal Chemistry and Natural Products Research Group, School of Pharmacy and Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Liverpool L3 3AF, UK.
| | - Lutfun Nahar
- Medicinal Chemistry and Natural Products Research Group, School of Pharmacy and Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Liverpool L3 3AF, UK.
| | - Kenneth James Ritchie
- Medicinal Chemistry and Natural Products Research Group, School of Pharmacy and Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Liverpool L3 3AF, UK.
| | - Fyaz Mahmood Daud Ismail
- Medicinal Chemistry and Natural Products Research Group, School of Pharmacy and Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Liverpool L3 3AF, UK.
| | - Andrew Robert Evans
- Medicinal Chemistry and Natural Products Research Group, School of Pharmacy and Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Liverpool L3 3AF, UK.
| | - Satyajit Dey Sarker
- Medicinal Chemistry and Natural Products Research Group, School of Pharmacy and Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Liverpool L3 3AF, UK.
| |
Collapse
|
43
|
Chen X, Chen W, Chen G, Han C, He JJ, Zhou X, Yu Z, Dai C, Song X. Neo-clerodane diterpenoids from the whole plants of Scutellaria formosana. Phytochemistry 2018; 145:1-9. [PMID: 29031114 DOI: 10.1016/j.phytochem.2017.09.002] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 09/05/2017] [Accepted: 09/07/2017] [Indexed: 06/07/2023]
Abstract
Scuteformoids A-J, ten previously undescribed neo-clerodane diterpenoids along with one known analogue, were isolated from petroleum ether soluable fraction of the whole plants of Scutellaria formosana. The differences among these compounds are the substituents and stereochemistry at C-13. Their structures were elucidated by 1D and 2D NMR experiments, and the absolute configurations of Scuteformoids A, C, E, F, and I were further confirmed by single-crystal X-ray diffraction. Scuteformoids A, C, D, F, H, and I were evaluated for their inhibitory effects against HIV lytic replication and cytotoxic activities. All of them showed weak anti-HIV activities, with EC50 values ranging from 48.24 to 79.17 μg/mL.
Collapse
Affiliation(s)
- Xin Chen
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China
| | - Wenhao Chen
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China
| | - Guangying Chen
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China
| | - Changri Han
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China; Key Laboratory of Medicinal and Edible Plants Resources of Hainan Province, School of Chemical and Material Engineering, Hainan Institute of Science and Technology, Haikou 571126, China.
| | - Johnny J He
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China
| | - Xueming Zhou
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China
| | - Zhangxin Yu
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China
| | - Chunyan Dai
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China
| | - Xiaoping Song
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China.
| |
Collapse
|
44
|
Wang P, Liu F, Yang X, Liang Y, Li S, Su G, Jin DQ, Ohizumi Y, Xu J, Guo Y. Clerodane diterpenoids from Scutellaria formosana with inhibitory effects on NO production and interactions with iNOS protein. Phytochemistry 2017; 144:141-150. [PMID: 28934646 DOI: 10.1016/j.phytochem.2017.09.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 07/05/2017] [Revised: 08/13/2017] [Accepted: 09/08/2017] [Indexed: 06/07/2023]
Abstract
A phytochemical study on Scutellaria formosana afforded five previously undescribed spiro-diterpenoids, scutellapenes A-E. The structures were elucidated on the basis of extensive 1D and 2D NMR spectroscopic data analysis, and the absolute configurations of these compounds were established by the time-dependent density functional theory (TDDFT) electronic circular dichroism (ECD) calculations. Scutellapenes B-E possess a spiro-diterpenoid skeleton. All of the compounds showed inhibitory effects on LPS-induced nitric oxide (NO) production in murine microglial BV-2 cells. The further molecular docking studies revealed that these bioactive compounds had strong interactions with the iNOS protein.
Collapse
Affiliation(s)
- Peixia Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Feng Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, 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 300071, People's Republic of China
| | - Yue Liang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Shen Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Guochen Su
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Da-Qing Jin
- School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Yasushi Ohizumi
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Jing Xu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Yuanqiang Guo
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China.
| |
Collapse
|
45
|
Bautista E, Ortiz-Pastrana N, Pastor-Palacios G, Montoya-Contreras A, Toscano RA, Morales-Jiménez J, Salazar-Olivo LA, Ortega A. neo-Clerodane Diterpenoids from Salvia polystachya Stimulate the Expression of Extracellular Matrix Components in Human Dermal Fibroblasts. J Nat Prod 2017; 80:3003-3009. [PMID: 29135252 DOI: 10.1021/acs.jnatprod.7b00591] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Eleven neo-clerodane diterpenoids (1-11) including the new analogues 1, 2, and 10, and 3',5,6,7-tetrahydroxy-4'-methoxyflavone (12) were isolated from the aerial parts of Salvia polystachya. Polystachyne G (1) and 15-epi-polystachyne G (2) were isolated as an epimeric mixture, containing a 5-hydroxyfuran-2(5H)-one unit in the side chain at C-12 of the neo-clerodane framework. Polystachyne H (10) contains a 1(10),2-diene moiety and a tertiary C-4 hydroxy group. The structures of these compounds were established by analysis of their NMR spectroscopic and MS spectrometric data. The absolute configurations of compounds 3, 4, and 10 were determined through single-crystal X-ray diffraction analysis. The antibacterial, antifungal, and phytotoxic activities of the diterpenoids were determined. In addition, the stimulatory effect of the expression of extracellular matrix components of nine of the isolates (1-8 and 11) was assayed. Compounds 1-4, 8, and 11 increased the expression of the genes codifying for type I, type III, and type V collagens and for elastin.
Collapse
Affiliation(s)
| | - Naytzé Ortiz-Pastrana
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria , Coyoacán 04510, México City, México
| | | | | | - Rubén A Toscano
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria , Coyoacán 04510, México City, México
| | | | | | - Alfredo Ortega
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria , Coyoacán 04510, México City, México
| |
Collapse
|
46
|
Abstract
Two dimeric clerodane diterpene glycosides, namely, bistinospinosides A (1) and B (2), were isolated from the roots of Tinospora sagittata. Their structures were elucidated by extensive spectroscopic data interpretation. The compounds feature an unusual 1,4-epoxycyclohexane ring in their structures and may be biosynthetically constructed via an intermolecular Diels-Alder [4+2] cycloaddition from the corresponding clerodane diterpene. The compounds were evaluated in a nitric oxide inhibitory assay using J774.1 macrophage-like cells.
Collapse
Affiliation(s)
- Wei Li
- Faculty of Pharmaceutical Sciences, Toho University , Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Chao Huang
- Faculty of Pharmaceutical Sciences, Toho University , Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Qingbo Liu
- Faculty of Pharmaceutical Sciences, Toho University , Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Kazuo Koike
- Faculty of Pharmaceutical Sciences, Toho University , Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| |
Collapse
|
47
|
Xu Y, Niu Y, Gao Y, Wang F, Qin W, Lu Y, Hu J, Peng L, Liu J, Xiong W. Borapetoside E, a Clerodane Diterpenoid Extracted from Tinospora crispa, Improves Hyperglycemia and Hyperlipidemia in High-Fat-Diet-Induced Type 2 Diabetes Mice. J Nat Prod 2017; 80:2319-2327. [PMID: 28742368 DOI: 10.1021/acs.jnatprod.7b00365] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An insidious increase in the incidence of obesity, insulin resistance, and hyperlipidemia has led to an epidemic of type 2 diabetes worldwide. Tinospora crispa (T. crispa) is a familiar plant traditionally used in herbal medicine for diabetes; however, the major active ingredients of this plant are still unclear. In this study, we identified the therapeutic effects of borapetoside E, a small molecule extracted from T. crispa, in high-fat-diet (HFD)-induced obesity in mice. The therapeutic effects of borapetoside E in HFD-induced obese mice were assessed physiologically, histologically, and biochemically following intraperitoneal injection. Furthermore, we analyzed the expression of glucose and lipid metabolism-related genes and proteins in borapetoside E-treated obese mice. Compared with vehicle-treated mice, borapetoside E markedly improved hyperglycemia, insulin resistance, hepatic steatosis, hyperlipidemia, and oxygen consumption in obese mice, and the effects were comparable to or better than the drug metformin. In addition, borapetoside E suppressed the expression of sterol regulatory element binding proteins (SREBPs) and their downstream target genes related to lipid synthesis in the liver and adipose tissue. Borapetoside E showed beneficial effects in vivo, demonstrating that borapetoside E may be a potential therapy for the treatment of diet-induced type 2 diabetes and related metabolic syndromes.
Collapse
Affiliation(s)
- Yuhui Xu
- 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
- University of the Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Yanfen Niu
- 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
- University of the Chinese Academy of Sciences , Beijing 100049, People's Republic of China
- Engineering Research Center, Kunming Medical University , Kunming 650500, People's Republic of China
| | - Yuan Gao
- BioBioPha Co., Ltd , Kunming 650201, People's Republic of China
- Deparment of Chemical Engineering, Yibin University , Yibin 644000, People's Republic of China
| | - Fang Wang
- 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
- University of the Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Wanying Qin
- 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
- University of the Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Yanting Lu
- 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
- University of the Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Jing Hu
- 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
- University of the Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Li Peng
- 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
- University of the Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Jikai Liu
- School of Pharmaceutical Sciences, South-Central University for Nationalities , Wuhan 430074, People's Republic of China
| | - Wenyong Xiong
- 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
- University of the Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| |
Collapse
|
48
|
Yilmaz A, Crowley RS, Sherwood AM, Prisinzano TE. Semisynthesis and Kappa-Opioid Receptor Activity of Derivatives of Columbin, a Furanolactone Diterpene. J Nat Prod 2017; 80:2094-2100. [PMID: 28718638 PMCID: PMC5665014 DOI: 10.1021/acs.jnatprod.7b00327] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Columbin (1) is a furanolactone diterpene isolated from the roots of Jateorhiza and Tinospora species. These species generally grow in Asia and Africa and have been used in folk medicine for their apparent analgesic and antipyretic activities. Columbin (1) is of particular interest due to its structural similarity to the known kappa-opioid receptor (KOR) agonist salvinorin A. Given that the KOR is of interest in the study of many serious diseases, such as anxiety, depression, and drug addiction, obtaining natural or semisynthetic molecules with KOR activity recently has gained much interest. For this reason, in the present study, derivatives of 1 were designed and synthesized using known structure-activity relationships of salvinorin A at KORs. The structures of the columbin analogues prepared were elucidated by NMR spectroscopy and mass spectroscopy, and their KOR activity was investigated in vitro by inhibition of forskolin-induced cAMP accumulation. Slight improvements in KOR activity were observed in columbin derivatives over their parent compound. However, despite the structural similarities to salvinorin A, neither columbin (1) nor its derivatives were potent KOR ligands. This work represents not only the first evaluation of columbin (1) at the KOR but also one of the first works to explore synthetic strategies that are tolerated on the columbin core.
Collapse
Affiliation(s)
- Anil Yilmaz
- Department of Chemistry, Faculty of Arts and Sciences, Istanbul Technical University, 34469 Maslak, İstanbul, Turkey
| | - Rachel Saylor Crowley
- Department of Medicinal Chemistry, School of Pharmacy, The University of Kansas, Lawrence, Kansas 66045, United States
| | - Alexander M. Sherwood
- Department of Medicinal Chemistry, School of Pharmacy, The University of Kansas, Lawrence, Kansas 66045, United States
| | - Thomas E. Prisinzano
- Department of Medicinal Chemistry, School of Pharmacy, The University of Kansas, Lawrence, Kansas 66045, United States
| |
Collapse
|
49
|
Kaplan HZ, Rendina VL, Kingsbury JS. General Methodologies Toward cis-Fused Quinone Sesquiterpenoids. Enantiospecific Synthesis of the epi-Ilimaquinone Core Featuring Sc-Catalyzed Ring Expansion. Molecules 2017; 22:molecules22071041. [PMID: 28672821 PMCID: PMC6152358 DOI: 10.3390/molecules22071041] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 06/21/2017] [Accepted: 06/21/2017] [Indexed: 11/28/2022] Open
Abstract
A stereocontrolled approach to the cis-decalin framework of clerodane diterpenes and biologically active quinone sesquiterpenes is reported. Starting from an inexpensive optically pure tetrahydroindanone, Birch reductive alkylation builds two new contiguous chiral centers—one of which is quaternary and all-carbon-substituted. Also featured is a highly regioselective diazoalkane—carbonyl homologation reaction to prepare the 6,6-bicyclic skeleton. Therein, the utility of Sc(OTf)3 as a mild catalyst for formal 1C insertion in complex settings is demonstrated.
Collapse
Affiliation(s)
- Hilan Z Kaplan
- Eugene F. Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, MA 02467, USA.
| | - Victor L Rendina
- Eugene F. Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, MA 02467, USA.
| | - Jason S Kingsbury
- Ahmanson Science Center, California Lutheran University, 60 West Olsen Rd., Thousand Oaks, CA 91360, USA.
| |
Collapse
|
50
|
Xu LL, Guo FX, Chi SS, Wang ZJ, Jiang YY, Liu B, Zhang JY. Rapid Screening and Identification of Diterpenoids in Tinospora sinensis Based on High-Performance Liquid Chromatography Coupled with Linear Ion Trap-Orbitrap Mass Spectrometry. Molecules 2017; 22:E912. [PMID: 28561755 PMCID: PMC6152629 DOI: 10.3390/molecules22060912] [Citation(s) in RCA: 7] [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: 02/20/2017] [Revised: 05/24/2017] [Accepted: 05/25/2017] [Indexed: 01/31/2023] Open
Abstract
Diterpenoids are considered the major active compounds in Tinospora sinensis in virtue of their special structures and activities. Herein, an analytical method was developed for rapid screening and identification of diterpenoids in T. sinensis using high-performmance liquid chromatography coupled with linear ion trap-Orbitrap mass spectrometry (HPLC-LTQ-Orbitrap) in negative ion mode. Two diterpenoid reference standards were first analyzed to obtain their characteristic ESI-MS/MS fragmentation patterns. Then, based on the extracted ion chromatogram (EIC) data-mining method and characteristic fragmentation pathways analysis, diterpenoids in T. sinensis were rapidly screened and identified. After that, an important parameter, Clog P, was adopted to discriminate between the isomers of diterpenoids. As a result, 63 diterpenoids were characterized from the extract of T. sinensis, including 10 diterpenoids and 53 diterpenoid glycosides. Among them, 15 compounds were tentatively identified as new compounds. Finally, target isolation of one diterpenoid glycoside named tinosineside A was performed based on the obtained results, which further confirmed the deduced fragmentation patterns and identified diterpenoid profile in T. sinensis. The results demonstrated that the established method could be a rapid, effective analytical tool for screening and characterization of diterpenoids in the complex systems of natural medicines.
Collapse
Affiliation(s)
- Lu-Lu Xu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Feng-Xia Guo
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Sen-Sen Chi
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Zi-Jian Wang
- Beijing Research Institution of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Yan-Yan Jiang
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Bin Liu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Jia-Yu Zhang
- Beijing Research Institution of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
| |
Collapse
|