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Jing S, Qu Z, Zhao C, Li X, Guo L, Liu Z, Zheng Y, Gao W. Dihydroisocoumarins and Dihydroisoflavones from the Rhizomes of Dioscorea collettii with Cytotoxic Activity and Structural Revision of 2,2'-Oxybis(1,4-di-tert-butylbenzene). Molecules 2021; 26:molecules26175381. [PMID: 34500814 PMCID: PMC8433754 DOI: 10.3390/molecules26175381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 08/26/2021] [Accepted: 09/02/2021] [Indexed: 11/30/2022] Open
Abstract
The investigation of the constituents of the rhizomes of Dioscorea collettii afforded one new dihydroisocoumarin, named (−)-montroumarin (1a), along with five known compounds—montroumarin (1b), 1,1′-oxybis(2,4-di-tert-butylbenzene) (2), (3R)-3′-O-methylviolanone (3a), (3S)-3′-O-methylviolanone (3b), and (RS)-sativanone (4). Their structures were elucidated using extensive spectroscopic methods. To the best of our knowledge, compound 1a is a new enantiomer of compound 1b. The NMR data of compound 2 had been reported but its structure was erroneous. The structure of compound 2 was revised on the basis of a reinterpretation of its NMR data (1D and 2D) and the assignment of the 1H and 13C NMR data was given rightly for the first time. Compounds 3a–4, three dihydroisoflavones, were reported from the Dioscoreaceae family for the first time. The cytotoxic activities of all the compounds were tested against the NCI-H460 cell line. Two dihydroisocoumarins, compounds 1a and 1b, displayed moderate cytotoxic activities, while the other compounds showed no cytotoxicity.
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Affiliation(s)
- Songsong Jing
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Hebei University of Chinese Medicine, Shijiazhuang 050200, China; (S.J.); (L.G.); (Z.L.)
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; (C.Z.); (X.L.)
| | - Zhuo Qu
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China;
| | - Chengcheng Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; (C.Z.); (X.L.)
| | - Xia Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; (C.Z.); (X.L.)
| | - Long Guo
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Hebei University of Chinese Medicine, Shijiazhuang 050200, China; (S.J.); (L.G.); (Z.L.)
| | - Zhao Liu
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Hebei University of Chinese Medicine, Shijiazhuang 050200, China; (S.J.); (L.G.); (Z.L.)
| | - Yuguang Zheng
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Hebei University of Chinese Medicine, Shijiazhuang 050200, China; (S.J.); (L.G.); (Z.L.)
- Hebei Chemical & Pharmaceutical College, Shijiazhuang 050200, China
- Correspondence: (Y.Z.); (W.G.); Tel.: +86-022-87401895 (W.G.)
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; (C.Z.); (X.L.)
- Correspondence: (Y.Z.); (W.G.); Tel.: +86-022-87401895 (W.G.)
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Li X, Wang Y, Sun J, Li X, Zhao C, Zhao P, Man S, Gao W. Chemotaxonomic studies of 12 Dioscorea species from China by UHPLC-QTOF-MS/MS analysis. PHYTOCHEMICAL ANALYSIS : PCA 2020; 31:164-182. [PMID: 31364208 DOI: 10.1002/pca.2876] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/20/2019] [Accepted: 06/24/2019] [Indexed: 06/10/2023]
Abstract
INTRODUCTION Dioscorea species, which contain abundant steroidal saponins, have been used as folk medicines or raw materials to synthesise steroid drugs. OBJECTIVE To establish a rapid chemotaxonomic method that will comprehensively resolve confusions about genetic relationships of genus Dioscorea. METHODS A comprehensive strategy using ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry (UHPLC-QTOF-MS/MS) was firstly proposed to evaluate the chemotaxonomy of 12 species (27 taxa) from China by hierarchical cluster analysis (HCA) based on the variations of the identified metabolites. RESULTS Twenty-eight secondary metabolites (mainly steroidal saponins) were identified. The MSn fragmentation patterns of DA (a new acetylated steroidal saponin at C-7 position) were firstly reported. Moreover, eight major steroidal saponins were further quantified simultaneously by UPLC-QTOF-MS method. According to HCA results, D. bulbifera L. was distinguished with species of sect. Stenophora Uline for pennogenin-type steroidal saponins. Dioscorea zingiberensis exhibited far distance from other members of sect. Stenophora Uline for two unique saponins. Dioscorea banzhuana may be reclassified into sect. Stenophora. Dioscorea nipponica subsp. rosthornii and D. collettii var. hypoglauca might be separated from their original subspecies/varieties as new species, respectively. CONCLUSION The chemotaxonomic method was successfully applied in the study of genetic relationships of Dioscorea species. This study not only enhanced the understanding of chemical constituents, but also laid basic theoretical foundations for the rational utilisation and chemotaxonomy of genus Dioscorea.
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Affiliation(s)
- Xuejiao Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Ying Wang
- Tianjin Key Laboratory of Chemistry and Analysis of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Jiachen Sun
- College of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, 300134, China
| | - Xia Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Chengcheng Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Ping Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Shuli Man
- Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
- Tianjin Key Laboratory of Chemistry and Analysis of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
- Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China
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Abstract
The first enantioselective total synthesis of diocollettines A was accomplished in only six steps from a known compound. A short and practical synthetic route was disclosed, featuring an intensive investigation of the stereoselective aldol reaction as a key step using an easily prepared aldehyde moiety and an enone derivative. The synthetic scheme also includes the efficient stereocontrolled construction of the tricyclic skeleton of diocollettines A by intramolecular acetal formation, stereoselective dihydroxylation, and intramolecular ether cyclization.
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Affiliation(s)
- Yuichiro Kawamoto
- School of Life Sciences , Tokyo University of Pharmacy and Life Sciences , 1432-1 Horinouchi , Hachioji , Tokyo 192-0392 , Japan
| | - Toyoharu Kobayashi
- School of Life Sciences , Tokyo University of Pharmacy and Life Sciences , 1432-1 Horinouchi , Hachioji , Tokyo 192-0392 , Japan
| | - Hisanaka Ito
- School of Life Sciences , Tokyo University of Pharmacy and Life Sciences , 1432-1 Horinouchi , Hachioji , Tokyo 192-0392 , Japan
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Li X, Qu Z, Jing S, Li X, Zhao C, Man S, Wang Y, Gao W. Dioscin-6'-O-acetate inhibits lung cancer cell proliferation via inducing cell cycle arrest and caspase-dependent apoptosis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 53:124-133. [PMID: 30668391 DOI: 10.1016/j.phymed.2018.09.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 07/21/2018] [Accepted: 09/03/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Lung cancer is the leading cause of global cancer-related mortality. Dioscin-6'-O-acetate (DA), a novel natural steroidal saponin, was firstly isolated from the rhizomes of Dioscorea althaeoides R. Knuth. Until now, there were no studies on its pharmacological activities. PURPOSE Here, we investigated the growth inhibitory effect and explored the underlying molecular mechanisms of DA against lung cancer cells. METHODS/STUDY DESIGNS NSCLC H460, H1299, H520 cells and SCLC H446 cells were treated with DA. To display the cytotoxic effects and possible mechanism of DA on these cells, MTT assay, flow cytometry and western blot analysis were carried out. RESULTS Our results showed that DA exerted strong anti-proliferative activity against lung cancer cells in a concentration- and time-dependent manner. Flow cytometry demonstrated DA induced the cell cycle arrest at S-phase (NCI-H460, NCI-H1299, NCI-H520) or G1-phase (NCI-H446), caused cellular apoptosis, generation of reactive oxygen species (ROS) and loss of mitochondrial membrane potential. Western blotting analysis showed DA treatment increased the levels of caspase 3, 8, 9, Bax, p21, p53, phosphorylated JNK and p38 MAPK and markedly decreased the expression of Bcl-2, p-ERK, p-PI3K, p-AKT and NF-κB. Blockade of caspases with Z-VAD-FMK converted apoptosis-related proteins. Suppression of p53 with pifithrin-α (PFT) attenuated cell cycle-related protein. Inhibition of ROS with N-acetyl-cysteine (NAC) adjusted apoptosis-related proteins and phosphorylated MAPK and PI3K, as well as NF-κB. CONCLUSION Overall, our study indicated that DA suppressed lung cancer cells proliferation via inducing cell-cycle arrest and enhancing caspase-dependent apoptosis, at least partly, through ROS-mediated PI3K/AKT, MAPK and NF-κB signaling pathways.
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Affiliation(s)
- Xuejiao Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Zhuo Qu
- School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan 750004, China
| | - Songsong Jing
- College of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
| | - Xia Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Chengcheng Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Shuli Man
- Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Ying Wang
- Tianjin Key Laboratory of Chemistry and Analysis of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; College of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang 050200, China; Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
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Dioscin-6’-O-acetate impairs migration of lung cancer cells through attenuations of MMP-2 and MMP-9 via NF-κB suppression. Med Chem Res 2018. [DOI: 10.1007/s00044-018-2257-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Li X, Zhao C, Jing S, Sun J, Li X, Man S, Wang Y, Gao W. Novel phenanthrene and isocoumarin from the rhizomes of Dioscorea nipponica Makino subsp. rosthornii (Prain et Burkill) C. T. Ting (Dioscoreaceae). Bioorg Med Chem Lett 2017; 27:3595-3601. [DOI: 10.1016/j.bmcl.2017.03.095] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 03/17/2017] [Accepted: 03/31/2017] [Indexed: 02/04/2023]
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Jing SS, Wang Y, Li XJ, Li X, Zhao WS, Zhou B, Zhao CC, Huang LQ, Gao WY. Phytochemical and chemotaxonomic studies on Dioscorea collettii. BIOCHEM SYST ECOL 2017. [DOI: 10.1016/j.bse.2017.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Diocollettines A, an unusual tricyclic diarylheptanoid derivative from the rhizomes of Dioscorea collettii. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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