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Huang W, Ke CQ, Feng Z, Yao S, Tang C, Ye Y. Germacrane-type sesquiterpenes from Pilea cavaleriei Levl. subsp. cavaleriei. Fitoterapia 2024; 177:106008. [PMID: 38844142 DOI: 10.1016/j.fitote.2024.106008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/10/2024] [Accepted: 05/11/2024] [Indexed: 06/20/2024]
Abstract
The first systematic investigation of germacrane-type sesquiterpenes from Pilea cavaleriei Levl. subsp. cavaleriei was conducted. Eleven undescribed germacrane analogues named cavalinols A-K were identified. Their planar structures were determined by extensive analysis of 1D and 2D NMR spectroscopic data, and the absolute configurations were further determined by X-ray single crystal diffraction, Mosher method, and time dependent density functional theory (TDDFT) electron circular dichroism (ECD) calculation, with the aid from DFT NMR calculation and NOESY experiment. Except for the common 10-memebered ring, ten new compounds contained a p-coumaroyl sidechain connected to C-8 of the nucleus skeleton. All the isolated compounds were screened for anti-inflammatory activity in LPS stimulated RAW 264.7 cells, and compounds 5 and 6 showed moderate activity.
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Affiliation(s)
- Wanyu Huang
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China; State Key Laboratory of Drug Research, and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Chang-Qiang Ke
- State Key Laboratory of Drug Research, and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Zheling Feng
- State Key Laboratory of Drug Research, and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Sheng Yao
- State Key Laboratory of Drug Research, and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China; Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
| | - Chunping Tang
- State Key Laboratory of Drug Research, and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yang Ye
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China; State Key Laboratory of Drug Research, and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China.
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Nguyen LTK, Vo HQ, Hoang HNT, Tran TVA, Minh Nguyen H, Pham TV, Ngo HPT, Pham T, Ho DV. Structure revision and absolute configuration of 5,7- diepi-2α-hydroxyoplopanone and anti-osteoporotic activities of sesquiterpenoids from the rhizomes of Homalomena pendula. Nat Prod Res 2024; 38:2453-2462. [PMID: 36803113 DOI: 10.1080/14786419.2023.2180505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 01/30/2023] [Accepted: 02/08/2023] [Indexed: 02/22/2023]
Abstract
Five sesquiterpenoids including 2α-hydroxyoplopanone (1), oplopanone (2), 1β,4β,6α-trihydroxy-eudesmane (3), 1β,4β,7α-trihydroxy-eudesmane (4) and bullatantriol (5) were isolated from Homalomena pendula. The structure of the previously reported compound, 5,7-diepi-2α-hydroxyoplopanone (1a), has been revised to 1 by the spectroscopic evidences (1D-/2D-NMR, IR, UV and HRESIMS) and by comparison between experimental and theoretical NMR data using DP4+ protocol. Furthermore, the absolute configuration of 1 was unambiguously assigned by ECD experiments. Compounds 2 and 4 displayed a potent ability to stimulate osteogenic differentiation of MC3T3-E1 cells at 4 µg/mL (by 123.74% and 131.07%, respectively) and 20 µg/mL (by 112.45% and 126.41%, respectively) whilst 3 and 5 did not show any activities. At 20 µg/mL, 4 and 5 significantly promoted the mineralization of MC3T3-E1 cells with values of 112.95% and 116.37%, respectively, whereas 2 and 3 were inactive. The results indicated that 4 could be an excellent component for anti-osteoporosis studies from the rhizomes of H. pendula.
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Affiliation(s)
- Linh Thuy Khanh Nguyen
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
- Faculty of Pharmacy, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh, Vietnam
| | - Hung Quoc Vo
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
| | - Hanh Nhu Thi Hoang
- Faculty of Engineering and Food Technology, Hue University of Agriculture and Forestry, Hue University, Hue City, Vietnam
| | - Thi Van Anh Tran
- Faculty of Pharmacy, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh, Vietnam
| | - Hien Minh Nguyen
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Ty Viet Pham
- Faculty of Chemistry, Hue University of Education, Hue University, Hue City, Vietnam
| | - Hang Phuong Thi Ngo
- Faculty of Biology, Hue University of Education, Hue University, Hue City, Vietnam
| | - Thanh Pham
- Faculty of Biology, Hue University of Education, Hue University, Hue City, Vietnam
| | - Duc Viet Ho
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
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Hu H, Tekin V, Hu B, Yaghoobi M, Khan A, Ghosh AK, Panda SK, Huang H, Luyten W. Metabolic profiling of Chimonanthus grammatus via UHPLC-HRMS-MS with computer-assisted structure elucidation and its antimicrobial activity. FRONTIERS IN PLANT SCIENCE 2023; 14:1138913. [PMID: 37229132 PMCID: PMC10205022 DOI: 10.3389/fpls.2023.1138913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 03/27/2023] [Indexed: 05/27/2023]
Abstract
Chimonanthus grammatus is used as Hakka traditional herb to treat cold, flu, etc. So far, the phytochemistry and antimicrobial compounds have not been well investigated. In this study, the orbitrap-ion trap MS was used to characterize its metabolites, combined with a computer-assisted structure elucidation method, and the antimicrobial activities were assessed by a broth dilution method against 21 human pathogens, as well as the bioassay-guided purification work to clarify its main antimicrobial compounds. A total of 83 compounds were identified with their fragmentation patterns, including terpenoids, coumarins, flavonoids, organic acids, alkaloids, and others. The plant extracts can strongly inhibit the growth of three Gram-positive and four Gram-negative bacteria, and nine active compounds were bioassay-guided isolated, including homalomenol C, jasmonic acid, isofraxidin, quercitrin, stigmasta-7,22-diene-3β,5α,6α-triol, quercetin, 4-hydroxy-1,10-secocadin-5-ene-1,10-dione, kaempferol, and E-4-(4,8-dimethylnona-3,7-dienyl)furan-2(5H)-one. Among them, isofraxidin, kaempferol, and quercitrin showed significant activity against planktonic Staphylococcus aureus (IC50 = 13.51, 18.08 and 15.86 µg/ml). Moreover, their antibiofilm activities of S. aureus (BIC50 = 15.43, 17.31, 18.86 µg/ml; BEC50 = 45.86, ≥62.50, and 57.62 µg/ml) are higher than ciprofloxacin. The results demonstrated that the isolated antimicrobial compounds played the key role of this herb in combating microbes and provided benefits for its development and quality control, and the computer-assisted structure elucidation method was a powerful tool for chemical analysis, especially for distinguishing isomers with similar structures, which can be used for other complex samples.
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Affiliation(s)
- Haibo Hu
- National Engineering Research Center for Modernization of Traditional Chinese Medicine - Hakka Medical Resources Branch, School of Pharmacy, Gannan Medical University, Ganzhou, China
- Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
| | - Volkan Tekin
- Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
| | - Bin Hu
- National Engineering Research Center for Modernization of Traditional Chinese Medicine - Hakka Medical Resources Branch, School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Mahdi Yaghoobi
- Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
- Department of Phytochemistry, Medicinal Plants and Drug Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Ajmal Khan
- Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
- Leishmania Diagnostic & Drug Delivery Research Laboratory, University of Peshawar, Peshawar, Pakistan
| | - Alokesh Kumar Ghosh
- Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
- Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna, Bangladesh
| | - Sujogya Kumar Panda
- Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
- Center of Environment Climate Change and Public Health, Utkal University, Vani Vihar, Bhubaneswar, Odisha, India
| | - Hao Huang
- National Engineering Research Center for Modernization of Traditional Chinese Medicine - Hakka Medical Resources Branch, School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Walter Luyten
- Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
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Nguyen LTK, Nguyen PQD, Nguyen CBH, Nguyen HT, Van Anh Tran T, Mai TT, Tran TS, Ho DV. Sesquiterpenoids from the rhizomes of Homalomena pendula (Blume) Bakh.f showing acetylcholinesterase inhibitory activity: in vitro and in silico studies. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02573-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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