1
|
Zhang ZY, Li Y, Yu JH, Zhao JX, Yue JM. Lauinoids A-X: Labdane-type diterpenoids with anti-inflammatory activity from Croton laui. PHYTOCHEMISTRY 2024; 223:114138. [PMID: 38762154 DOI: 10.1016/j.phytochem.2024.114138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 05/08/2024] [Accepted: 05/12/2024] [Indexed: 05/20/2024]
Abstract
Croton laui (Euphorbiaceae) is a traditional medicinal plant used by the Li ethnic group in China to treat headaches, stomachaches, and diphtheria. To understand the pharmacological basis of its medicinal use, an extensive investigation of the ethanolic extract of the bark of C. laui was performed. After repeated chromatography, twenty-four undescribed labdane-type diterpenoids, lauinoids A-X (1-24), and five known analogs (25-29) were isolated. Their structures and absolute configurations were established using a combination of spectroscopic analyses, electronic circular dichroism, nuclear magnetic resonance calculations, and single-crystal X-ray diffraction. Among them, compounds 1-3 exhibited an 11(12 → 13)-abeo-16-nor-labdane skeleton, which originated putatively from 9 through a plausible pathway that involves a semipinacol rearrangement process. Compounds 11 and 12 belong to the rare class of 14,15-dinor-labdane diterpenoids. Compounds 18 and 28 exhibited substantial inhibitory effects by suppressing lipopolysaccharide-induced NO production in RAW 264.7 macrophages, with IC50 values of 3.37 ± 0.23 and 5.82 ± 0.28 μM, respectively. This study has greatly expanded the chemical diversity of labdane diterpenoids from C. laui and will guide future research on this ethnomedicinal plant.
Collapse
Affiliation(s)
- Zong-Yi Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China
| | - Ying Li
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 198 East Binhai Road, Yantai, Shandong, 264117, People's Republic of China
| | - Jin-Hai Yu
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 198 East Binhai Road, Yantai, Shandong, 264117, People's Republic of China
| | - Jin-Xin Zhao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China; Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 198 East Binhai Road, Yantai, Shandong, 264117, People's Republic of China.
| | - Jian-Min Yue
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China; Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 198 East Binhai Road, Yantai, Shandong, 264117, People's Republic of China.
| |
Collapse
|
2
|
Antimicrobial diterpenoids from the leaves and twigs of Croton kongensis Gagnepain. Fitoterapia 2023; 164:105350. [PMID: 36375687 DOI: 10.1016/j.fitote.2022.105350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022]
Abstract
Croton kongensis Gagnepain. belongs to the genus Croton, the Euphorbiaceae family, mainly distributed in Hainan and southern Yunnan, China. The aim of present study was to acquire secondary metabolites of the ethanol extract obtained from the leaves and twigs of C. kongensis. Three new abietane-type diterpenoids, crokongenolides A-C (1-3), together with seven known diterpenoids (4-10), were isolated from the leaves and twigs of C. kongensis. The structures of the new compounds were determined by extensive spectroscopic methods (1D and 2D NMR, IR, and HRESIMS), and their absolute configurations were confirmed by single-crystal X-ray diffraction analysis or electronic circular dichroism (ECD) calculations. The absolute configuration of 4 was determined for the first time by single-crystal X-ray diffraction analysis with Cu-Kα irradiation. Some compounds were evaluated for their antimicrobial properties by assessing their inhibitory effects on Staphylococcus aureus, Candida albicans, and Escherichia coli. Compound 10 showed significant antimicrobial activity against S. aureus with MIC value of 1.56 μg/ml.
Collapse
|
3
|
Xie W, Zhang D, Wen X, Zhang Y, Zhang Z, Jin Y, Du Y. A practical technique for rapid characterisation of ent-kaurane diterpenoids in Isodon serra (Maxim.) Hara by UHPLC-Q-TOF-MS/MS. PHYTOCHEMICAL ANALYSIS : PCA 2022; 33:517-532. [PMID: 35144310 DOI: 10.1002/pca.3106] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
INTRODUCTION The diterpenoids are the most important active constituents that contribute to the pharmacological efficacy of Isodon serra (Maxim.) Hara. Clinical studies have revealed that diterpenoids possess multiple features, e.g. antitumour, antitubercular and anti-ischemic activities. Therefore, the identification and detection of diterpenoids may be equally important for understanding the pharmacological basis of diterpenoids and enhancing the product quality control of I. serra. OBJECTIVES The purpose of this study was to develop a practical analysis approach of rapid characterisation using ultrahigh-performance liquid chromatography quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF-MS) for the structure characterisation of the ent-kaurane diterpenoids from I. serra. METHODOLOGY The analytical strategy was as follows: first, ent-kaurane diterpenoids were detected by a novel on-line data acquisition approach, i.e. sequential window acquisition of all theoretical fragment-ion spectra (SWATH). Second, the MS of eight ent-kaurane diterpenoids was explored, and their mass spectrum cleavage pathways were summarised and determined. Finally, the methanol extract of I. serra was studied using SWATH and identified by extracted ion chromatography (XIC). RESULTS Compared to the traditional information-dependent acquisition (IDA) method, SWATH significantly improved the hit rate of ent-kaurane diterpenoids. With support from UHPLC separation and specific detection by tandem mass spectrometry (MS/MS), 48 ent-kaurane diterpenoids were successfully characterised and classified as ent-kaurane diterpenoids from a complex matrix. CONCLUSIONS These combined qualitative methods were used to provide a potential approach for the characterisation of traditional Chinese medicine (TCM) and its preparations. Meanwhile, the SWATH provided a novel and reliable method for the structural characterisation of ent-kaurane diterpenoids from other complicated TCMs.
Collapse
Affiliation(s)
- Weiwei Xie
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P. R. China
| | - Dedong Zhang
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P. R. China
| | - Xuqing Wen
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P. R. China
| | - Yuqian Zhang
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P. R. China
| | - Zhiqing Zhang
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P. R. China
| | - Yiran Jin
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P. R. China
| | - Yingfeng Du
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei, P. R. China
| |
Collapse
|
4
|
Li YQ, Hou BL, Wang MJ, Wang RY, Chen XH, Liu X, Fei DQ, Zhang ZX, Li EW. Diterpenoids and C 13 Nor-Isoprenoid Identified From the Leaves and Twigs of Croton yanhuii Activating Apoptosis and Pyroptosis. Front Chem 2022; 10:861278. [PMID: 35419345 PMCID: PMC8996330 DOI: 10.3389/fchem.2022.861278] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 02/17/2022] [Indexed: 11/13/2022] Open
Abstract
Croton yanhuii (Family Euphorbiaceae) is an annual aromatic plant endemic to Yunnan Province, China, which yields an aromatic, spicy oil used as a flavoring and fragrance. The aim of the present study was to acquire secondary metabolites from the leaves and twigs of C. yanhuii and to evaluate their cytotoxic activity. Five new diterpenoids, croyanhuins A–E (1–5), and one new C13 nor-isoprenoid, croyanhuin F (6), were isolated from the leaves and twigs of C. yanhuii. Their structures and absolute configurations were determined by extensive spectroscopic methods (1D and 2D NMR, IR, and HRESIMS) and confirmed by electronic circular dichroism (ECD) spectra or single-crystal X-ray diffraction analysis. Among the new terpenoids, compounds 1 and 3 inhibited cell proliferation and viability in a dose- and time-dependent manner, whereas both induced cleavage of either caspase-3 or PARP-1 in the SW480 cell line. Additionally, we observed that Z-YVAD-FMK and Z-VAD-FMK, two caspase inhibitors, inhibited the compound-dependent cell viability loss, suggesting that either of them can induce pyroptosis and caspase-dependent apoptosis. These biological assay results revealed that compounds 1 and 3 induce different kinds of programmed cell death in SW480 cells.
Collapse
Affiliation(s)
- Yue-Qian Li
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China.,State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,Institutional Center for Shared Technologies and Facilities, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Bo-Lin Hou
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Mei-Jie Wang
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China
| | - Ru-Yue Wang
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China
| | - Xiao-Han Chen
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China
| | - Xu Liu
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China
| | - Dong-Qing Fei
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China.,State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, China
| | - Zhan-Xin Zhang
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China
| | - Er-Wei Li
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,Institutional Center for Shared Technologies and Facilities, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
5
|
Li F, Zhang DB, Li JT, He FJ, Zhu HL, Li N, Xiao XC, Ren L, Zheng W. Bioactive terpenoids from Croton laui. Nat Prod Res 2019; 35:2849-2857. [PMID: 31596143 DOI: 10.1080/14786419.2019.1675062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Two new highly-oxygenated neo-clerodane diterpenoids, 3S-acetoxyl-mollotucin D dilactone ester (1) and 6S-crotoeurin C (2), and a new lupane-type triterpene, 16β-hydroxyl-3β-O-trans-coumaroyl-betulin (6), as well as three known analogues (3-5) were obtained from the leaves of Croton laui. The structures of the new compounds were determined by extensive spectroscopic methods, and their absolute configurations were determined by combination of single-crystal X-ray diffraction analysis, electronic circular dichroism (ECD) spectra, and literature data. Compounds 2 and 3 exhibited inhibitory activities of lipopolysaccharide (LPS)-induced nitric oxide (NO) production in RAW 264.7 macrophages with IC50 values of 1.2 and 1.6 μM, respectively. Additionally, compound 6 exhibited activity against Col205 and HepG2 cell lines with IC50 values of 12.9 and 17.7 μM, respectively.
Collapse
Affiliation(s)
- Fei Li
- Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Dong-Bo Zhang
- Shaanxi University of Chinese Medicine, Xianyang, P.R. China.,Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Jing-Tao Li
- The Affiliated Hospital to Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Feng-Jie He
- Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Hong-Li Zhu
- The Affiliated Hospital to Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Nan Li
- Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Xin-Chun Xiao
- Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Li Ren
- Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Wei Zheng
- Xi'an Employees's University, Xi'an, P.R. China
| |
Collapse
|
6
|
Somteds A, Tantapakul C, Kanokmedhakul K, Laphookhieo S, Phukhatmuen P, Kanokmedhakul S. Inhibition of nitric oxide production by clerodane diterpenoids from leaves and stems of Croton poomae Esser. Nat Prod Res 2019; 35:2722-2729. [DOI: 10.1080/14786419.2019.1667350] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Apisara Somteds
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Cholpisut Tantapakul
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Kwanjai Kanokmedhakul
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Surat Laphookhieo
- Center of Chemical Innovation for Sustainability (CIS), School of Science, Mae Fah Luang University, Chiang Rai, Thailand
| | - Piyaporn Phukhatmuen
- Center of Chemical Innovation for Sustainability (CIS), School of Science, Mae Fah Luang University, Chiang Rai, Thailand
| | - Somdej Kanokmedhakul
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| |
Collapse
|
7
|
Jin Y, Tian T, Ma Y, Hou L, Guan S, Sun W, Du Y, Zhang L. Chemical profiling and total quality assessment of Isodon japonica using data-independent acquisition mode combined with superimposed multiple product ion UHPLC-Q-TOF-MS and chemometric analysis. RSC Adv 2019; 9:1403-1418. [PMID: 35518003 PMCID: PMC9059629 DOI: 10.1039/c8ra08732f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 12/21/2018] [Indexed: 11/21/2022] Open
Abstract
In this paper, an analytical strategy combined data acquisition with a practical mining strategy aimed at rapid characterization and quantitation of ent-kaurane diterpenoids in Isodon japonica using ultra high-performance liquid chromatography-triple time-of-flight mass spectrometry (UPLC-Q-TOF-MS/MS). First, an effective self-built filter template based on drug phase I/II metabolic reaction theory and a components library data set were established. Second, the mass spectra of ent-kaurane diterpenoid standards were studied and their mass spectrum cleavage pathways were summarized. Next, the methanol extract of this herb was studied by data-independent acquisition mode (DIA). With the aid of a self-built filter template, the peaks of ent-kaurane diterpenoids were easily picked out and rapidly classified as ent-kaurane diterpenoids from a complex matrix. A total of 24 ent-kaurane diterpenoids were structurally identified. Meanwhile, the self-built filter template provided a convenient and fast method for the structural characterization and Isodon japonica was used to illustrate this approach for the first time. Furthermore, eight major bioactive diterpenoids were simultaneously quantified by a newly developed superimposed multiple product ion (SMPI) with UPLC-Q-TOF-MS/MS method. Principal component analysis (PCA) revealed significant differences in different batches of samples. These combined qualitative and quantitative methods were used to provide a potential approach for the holistic quality evaluation of traditional Chinese medicine (TCM) and its preparations.
Collapse
Affiliation(s)
- Yiran Jin
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University 361 East Zhongshan Road Shijiazhuang Hebei 050017 P. R. China +86-311-86266419 +86-311-86265625.,The Second Hospital of Hebei Medical University Shijiazhuang Hebei 050000 P. R. China
| | - Tingting Tian
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University 361 East Zhongshan Road Shijiazhuang Hebei 050017 P. R. China +86-311-86266419 +86-311-86265625
| | - Yinghua Ma
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University 361 East Zhongshan Road Shijiazhuang Hebei 050017 P. R. China +86-311-86266419 +86-311-86265625
| | - Ludan Hou
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University 361 East Zhongshan Road Shijiazhuang Hebei 050017 P. R. China +86-311-86266419 +86-311-86265625
| | - Shuai Guan
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University 361 East Zhongshan Road Shijiazhuang Hebei 050017 P. R. China +86-311-86266419 +86-311-86265625
| | - Wenjing Sun
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University 361 East Zhongshan Road Shijiazhuang Hebei 050017 P. R. China +86-311-86266419 +86-311-86265625
| | - Yingfeng Du
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University 361 East Zhongshan Road Shijiazhuang Hebei 050017 P. R. China +86-311-86266419 +86-311-86265625
| | - Lantong Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University 361 East Zhongshan Road Shijiazhuang Hebei 050017 P. R. China +86-311-86266419 +86-311-86265625
| |
Collapse
|
8
|
Zhang ZX, Li HH, Zhi DJ, Wu PQ, Hu QL, Yu YF, Zhao Y, Yu CX, Fei DQ. Norcrocrassinone: A novel tetranorditerpenoid possessing a 6/6/5 fused ring system from Croton crassifolius. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
9
|
Shi SQ, Fan YY, Xu CH, Ding J, Wang GW, Yue JM. Cytotoxic 8,9-seco-ent-kaurane diterpenoids from Croton kongensis. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2018; 20:920-927. [PMID: 28895443 DOI: 10.1080/10286020.2017.1373100] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 08/19/2017] [Indexed: 06/07/2023]
Abstract
Chemical study on the ethanolic extract generated from the aerial parts of Croton kongensis led to the isolation of three new 8,9-seco-ent-kaurane diterpenoids, kongeniods A‒C (1‒3), together with seven known analogs (4-10). The structures of these compounds were assigned by spectroscopic data analysis. The vitro cytotoxic tests showed that compounds 1-3 exhibited strong activities against HL-60 cell lines with IC50 values of 0.47, 0.58, and 1.27 μM, respectively.
Collapse
Affiliation(s)
- Shu-Qin Shi
- a Nano Science and Technology Institute, University of Science and Technology of China , Suzhou 215123 , China
- b State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
| | - Yao-Yue Fan
- b State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
| | - Cheng-Hui Xu
- b State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
| | - Jian Ding
- b State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
| | - Guan-Wu Wang
- c CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at Microscale , Department of Chemistry , University of Science and Technology of China , Hefei 230026 , China
| | - Jian-Min Yue
- b State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
| |
Collapse
|
10
|
Liu MN, Zhang MM, Li JY, Li J, Fan YY, Yue JM. Six new diterpenoids from Croton laevigatus. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2018; 20:909-919. [PMID: 30129374 DOI: 10.1080/10286020.2018.1484455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 05/31/2018] [Indexed: 06/08/2023]
Abstract
Six new ent-labdane-type diterpeniods (1‒6), along with one known compound, were identified from the twigs and leaves of Croton laevigatus. Their structures were elucidated on the basis of extensive spectroscopic interpretation. Compounds 2 and 7 showed inhibitory activity against protein tyrosine phosphatase 1B (PTP1B) with IC50 values of 4.11 and 8.33 μg/ml, respectively.
Collapse
Affiliation(s)
- Mo-Nan Liu
- a State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
- b University of Chinese Academy of Science , Beijing 100049 , China
| | - Meng-Meng Zhang
- a State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
- b University of Chinese Academy of Science , Beijing 100049 , China
| | - Jing-Ya Li
- a State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
- b University of Chinese Academy of Science , Beijing 100049 , China
| | - Jia Li
- a State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
- b University of Chinese Academy of Science , Beijing 100049 , China
| | - Yao-Yue Fan
- a State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
- b University of Chinese Academy of Science , Beijing 100049 , China
| | - Jian-Min Yue
- a State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
- b University of Chinese Academy of Science , Beijing 100049 , China
| |
Collapse
|
11
|
Chemical Constituents from Croton Species and Their Biological Activities. Molecules 2018; 23:molecules23092333. [PMID: 30213129 PMCID: PMC6225158 DOI: 10.3390/molecules23092333] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/07/2018] [Accepted: 09/10/2018] [Indexed: 12/12/2022] Open
Abstract
The genus Croton belongs to the Euphorbiaceae family, which comprises approximately 1300 species. Many Croton species have been used as folk medicines. This review focuses on the chemical constituents from Croton species and their relevant biological activities, covering the period from 2006 to 2018. A total of 399 new compounds, including 339 diterpenoids, were reported. Diterpenoids are characteristic components of the Croton species. These isolated compounds exhibited a broad spectrum of bioactivities, including cytotoxic, anti-inflammatory, antifungal, acetylcholinesterase inhibitory, and neurite outgrowth-promoting properties. The present review provides a significant clue for further research of the chemical constituents from the Croton species as potential medicines.
Collapse
|
12
|
Zhang YB, Li W, Jiang L, Yang L, Chen NH, Wu ZN, Li YL, Wang GC. Cytotoxic and anti-inflammatory active phloroglucinol derivatives from Rhodomyrtus tomentosa. PHYTOCHEMISTRY 2018; 153:111-119. [PMID: 29906657 DOI: 10.1016/j.phytochem.2018.05.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 05/24/2018] [Accepted: 05/27/2018] [Indexed: 06/08/2023]
Abstract
Seven undescribed phloroglucinol derivatives, tomentodiones N-T, and eleven known ones were isolated from Rhodomyrtus tomentosa. Tomentodione N is the first example of a β-triketone unit coupled with an isoamyl alcohol through a furan fused-ring, and tomentodiones N, S, T were three racemates. The undescribed structures were elucidated by means of spectroscopic, X-ray diffraction, electronic circular dichroism calculation, and chemical methods. In addition, the isolated compounds were determined for the cytotoxic activities on HeLa cells and anti-inflammatory activities in LPS-stimulated RAW 264.7 cells.
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
- Cell Survival/drug effects
- Chlorocebus aethiops
- Crystallography, X-Ray
- Dose-Response Relationship, Drug
- Drug Screening Assays, Antitumor
- HeLa Cells
- Humans
- Lipopolysaccharides/antagonists & inhibitors
- Lipopolysaccharides/pharmacology
- Mice
- Models, Molecular
- Molecular Structure
- Myrtaceae/chemistry
- Nitric Oxide/antagonists & inhibitors
- Nitric Oxide/biosynthesis
- Phloroglucinol/analogs & derivatives
- Phloroglucinol/chemistry
- Phloroglucinol/pharmacology
- RAW 264.7 Cells
- Structure-Activity Relationship
- Vero Cells
Collapse
Affiliation(s)
- Yu-Bo Zhang
- Institute of Traditional Chinese Medicine & Natural Products, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou 510632, PR China
| | - Wen Li
- Institute of Traditional Chinese Medicine & Natural Products, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China
| | - Lin Jiang
- Institute of Traditional Chinese Medicine & Natural Products, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China
| | - Li Yang
- Institute of Traditional Chinese Medicine & Natural Products, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China
| | - Neng-Hua Chen
- Institute of Traditional Chinese Medicine & Natural Products, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China
| | - Zhong-Nan Wu
- Institute of Traditional Chinese Medicine & Natural Products, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China
| | - Yao-Lan Li
- Institute of Traditional Chinese Medicine & Natural Products, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China.
| | - Guo-Cai Wang
- Institute of Traditional Chinese Medicine & Natural Products, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou 510632, PR China.
| |
Collapse
|
13
|
Premprasert C, Tewtrakul S, Wungsintaweekul J. Plaunol A from Croton stellatopilosus Inhibits Inducible Nitric Oxide Synthase and Cyclooxygenase-2 in Macrophage RAW264.7 Cells. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A clerodane diterpene (plaunol A) and three flavonoids (vitexin; luteolin-7-O-β-D-glucoside and luteolin-4'-O-glucoside) were isolated from stems and leaves of Croton stellatoliosus Ohba, using series of chromatographic techniques. Evaluation for anti-inflammatory activity in LPS-induced RAW264.7 cells revealed that, only plaunol A exhibited the inhibitory activity on nitric oxide production with the IC50 of 11.69 μM. This was no cytotoxic effect to the cells at a concentration of 100 μM, by MTT assay. Determination of mRNA levels by qRT-PCR, indicated that plaunol A suppressed the expressions of inducible nitric oxide synthase and cyclooxygenase-2 in lipopolysaccharide-induced RAW264.7 cells.
Collapse
Affiliation(s)
- Charoenwong Premprasert
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Supinya Tewtrakul
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Juraithip Wungsintaweekul
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| |
Collapse
|
14
|
Abstract
This review covers the isolation and chemistry of diterpenoids from terrestrial as opposed to marine sources and includes labdanes, clerodanes, abietanes, pimaranes, kauranes, cembranes and their cyclization products. The literature from January to December, 2016 is reviewed.
Collapse
|