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Natural green deep eutectic solvents-based eco-friendly and efficient extraction of flavonoids from Selaginella moellendorffii: Process optimization, composition identification and biological activity. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120203] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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2
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Thamnarak W, Eurtivong C, Pollawatn R, Ruchirawat S, Thasana N. Two new nor-lignans, siamensinols A and B, from Selaginella siamensis Hieron. and their biological activities. Nat Prod Res 2021; 36:5591-5599. [PMID: 34963379 DOI: 10.1080/14786419.2021.2022664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Two new nor-lignans siamensinols A-B (1-2) and seven known compounds agatharesinol (3), syringaresinol-glucoside (4), noreugenin (5), 8-methyleugenitol (6), melachromone (7), uncinoside A (8) and daucosterol (9) were isolated from Selaginella siamensis Hieron. The structures of the new compounds were elucidated on the basis of comprehensive spectroscopic methods, including 1 D, 2 D-NMR, HR-ESI-MS and CD spectrometry. Compounds 1-2 showed moderate inhibitory effect on MOLT-3 cells while 8-methyleugenitol (6) exhibited moderate inhibitory effect on three tumor cells (HepG2, A549 and HuCCA-1). Compounds 2-3 showed the potent cancer chemoprevention in DPPH, XXO, IXO and AIA assays.
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Affiliation(s)
- Wanlaya Thamnarak
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Laksi, Bangkok, Thailand
| | - Chatchakorn Eurtivong
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Laksi, Bangkok, Thailand
| | - Rossarin Pollawatn
- Plant of Thailand Research Unit, Department of Botany, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, Thailand
| | - Somsak Ruchirawat
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Laksi, Bangkok, Thailand.,Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Laksi, Bangkok, Thailand.,The Center of Excellence on Environmental Health and Toxicology, Commission on Higher Education, Ministry of Education, Bangkok, Thailand
| | - Nopporn Thasana
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Laksi, Bangkok, Thailand.,Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Laksi, Bangkok, Thailand.,The Center of Excellence on Environmental Health and Toxicology, Commission on Higher Education, Ministry of Education, Bangkok, Thailand
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3
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Secondary Metabolites with Anti-Inflammatory Activities from One Actinobacteria Amycolatopsis taiwanensis. Molecules 2021; 26:molecules26195765. [PMID: 34641311 PMCID: PMC8510368 DOI: 10.3390/molecules26195765] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 11/16/2022] Open
Abstract
Phytochemical investigation and chromatographic separation of extracts from one new actinobacteria strain Amycolatopsis taiwanensis that was isolated from soil of Yilan township, in the north of Taiwan, led to the isolation of nine new compounds, amycolataiwanensins A–I (1–9, resp.), and one new natural product, namely amycolataiwanensin J (10). The structures of the new compounds were unambiguously elucidated on the basis of extensive spectroscopic-data analysis (1D- and 2D-NMR, MS, and UV) and comparison with literature data. The effect of some isolates on the inhibition of NO production in lipopolysaccharide-activated RAW 264.7 murine macrophages was evaluated. Of the isolates, 3, 5, 7 and 8 exhibited potent anti-NO production activity, with IC50 values of 17.52, 12.31, 17.81 and 13.32 μM, respectively, compared to that of quercetin, an iNOS inhibitor with an IC50 value of 35.94 μM. This is the first report on indole metabolite from the genus Amycolatopsis.
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He J, Xu JK, Guo LB, Xia CY, Lian WW, Tian HY, Zhang J, Shi YX, Zhang WK. Fischdiabietane A, an Antitumoral Diterpenoid Dimer Featuring an Unprecedented Carbon Skeleton from Euphorbia fischeriana. J Org Chem 2021; 86:5894-5900. [PMID: 33793234 DOI: 10.1021/acs.joc.1c00305] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Fischdiabietane A (1), a novel asymmetric diterpenoid dimer with a unique nonacyclic 6/6/6/5/7/6/6/6/6 ring system possessing unprecedented 2-oxaspiro[4.5]decane-1-one and 2-oxabicyclo[3.2.2]nonane frameworks in D/E/F rings, was isolated from the roots of Euphorbia fischeriana. Its structure was determined by spectroscopic techniques, electronic circular dichroism calculations, and X-ray diffraction experiments. Notably, 1 is the first abietane-type [4 + 2] Diels-Alder dimer identified from nature. The IC50 of 1 against T47D cells was about sixfold higher than that of cisplatin (the positive control). Furthermore, 1 induced apoptosis in T47D cells through the activation of caspase-3 and the degradation of poly(ADP-ribose) polymerase.
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Affiliation(s)
- Jun He
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, People's Republic of China
| | - Jie-Kun Xu
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Lin-Bo Guo
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, People's Republic of China.,Institute of Traditional Chinese Medicine and Natural Products & College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China
| | - Cong-Yuan Xia
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, People's Republic of China
| | - Wen-Wen Lian
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, People's Republic of China
| | - Hai-Yan Tian
- Institute of Traditional Chinese Medicine and Natural Products & College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China
| | - Jia Zhang
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, People's Republic of China.,School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Ying-Xue Shi
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, People's Republic of China.,School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Wei-Ku Zhang
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, People's Republic of China
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5
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Comparison of Chemical Composition and Biological Activities of Eight Selaginella Species. Pharmaceuticals (Basel) 2020; 14:ph14010016. [PMID: 33375355 PMCID: PMC7823444 DOI: 10.3390/ph14010016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 12/19/2022] Open
Abstract
Selaginella P. Beauv. is a group of vascular plants in the family Selaginellaceae Willk., found worldwide and numbering more than 700 species, with some used as foods and medicines. The aim of this paper was to compare methanolic (MeOH) and dichloromethane (DCM) extracts of eight Selaginella species on the basis of their composition and biological activities. Six of these Selaginella species are underinvestigated. Using ultra-high performance liquid chromatography-high-resolution mass spectrometry (UHPLC-HRMS) analysis, we identified a total of 193 compounds among the tested Selaginella species, with flavonoids predominating. MeOH extracts recovered more constituents that were detected, including selaginellins, the occurrence of which is only typical for this plant genus. Of all the tested species, Selaginella
apoda contained the highest number of identified selaginellins. The majority of the compounds were identified in S. apoda, the fewest compounds in Selaginella
cupressina. All the tested species demonstrated antioxidant activity using oxygen radical absorption capacity (ORAC) assay, which showed that MeOH extracts had higher antioxidant capacity, with the half maximal effective concentration (EC50) ranging from 12 ± 1 (Selaginella
myosuroides) to 124 ± 2 (Selaginella
cupressina) mg/L. The antioxidant capacity was presumed to be correlated with the content of flavonoids, (neo)lignans, and selaginellins. Inhibition of acetylcholinesterase (AChE) was mostly discerned in DCM extracts and was only exhibited in S. myosuroides, S. cupressina, Selaginella
biformis, and S. apoda extracts with the half maximal inhibitory concentration (IC50) in the range of 19 ± 3 to 62 ± 1 mg/L. Substantial cytotoxicity against cancer cell lines was demonstrated by the MeOH extract of S. apoda, where the ratio of the IC50 HEK (human embryonic kidney) to IC50 HepG2 (hepatocellular carcinoma) was 7.9 ± 0.2. MeOH extracts inhibited the production of nitrate oxide and cytokines in a dose-dependent manner. Notably, S. biformis halved the production of NO, tumor necrosis factor (TNF)-α, and interleukin (IL)-6 at the following concentrations: 105 ± 9, 11 ± 1, and 10 ± 1 mg/L, respectively. Our data confirmed that extracts from Selaginella species exhibited cytotoxicity against cancer cell lines and AChE inhibition. The activity observed in S. apoda was the most promising and is worth further exploration.
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Wu W, Jia XH, Zhang S, Dong CM, Kang FH, Zou ZX, Xu KP. Two New Abietane Diterpenoids from Selaginella moellendorffii Hieron. Chem Biodivers 2020; 17:e2000111. [PMID: 32246527 DOI: 10.1002/cbdv.202000111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 04/03/2020] [Indexed: 11/09/2022]
Abstract
Two new abietane diterpenoids, (3S,5R,10S)-3-hydroxy-12-O-demethyl-11-deoxy-19(4→3)-abeo-cryptojaponol, 12,19-dihydroxyabieta-8,11,13-trien-7-one, were isolated from Selaginella moellendorffii Hieron., together with one known abietane diterpenoid and four known tetracyclic triterpenoids. Their structures were characterized by their 1D- and 2D-NMR, ECD and mass spectral studies. All compounds were tested for their inhibitory effects on proliferation of three human cancer cells (human non-small-cell lung carcinoma cell lines A549 and human breast adenocarcinoma cell lines MDA-MB-231 and MCF-7) in vitro. Among them, three compounds displayed modest cytotoxic activities against the above three human cancer cell lines with IC50 values ranging from 16.28 to 40.67 μM.
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Affiliation(s)
- Wei Wu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, P. R. China
| | - Xiao-Hui Jia
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001, P. R. China
| | - Sha Zhang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, P. R. China
| | - Chun-Mao Dong
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, P. R. China
| | - Feng-Hua Kang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, P. R. China
| | - Zhen-Xing Zou
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, P. R. China
| | - Kang-Ping Xu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, P. R. China
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Liu JQ, Xu Y, Xiao Q, Huang JD, Ma JJ, Lian CL, Huang MY, Du ZB, Wang CF. Dimericursones A and B: two unprecedented hexacyclic dimeric diterpenoids from the root barks of Jatropha curcas. Org Biomol Chem 2018; 16:8305-8310. [DOI: 10.1039/c8ob02082e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Two unprecedented hexacyclic dimeric diterpenoids from Jatropha curcas and 2 showed significant NO inhibitory activity with IC50 values of 5.65 μM.
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Affiliation(s)
- Jie-Qing Liu
- School of Medicine
- Huaqiao University
- Quanzhou 362021
- P. R. China
| | - Ying Xu
- School of Medicine
- Huaqiao University
- Quanzhou 362021
- P. R. China
| | - Qin Xiao
- School of Medicine
- Huaqiao University
- Quanzhou 362021
- P. R. China
| | - Jin-Di Huang
- School of Medicine
- Huaqiao University
- Quanzhou 362021
- P. R. China
| | - Jun-Jie Ma
- School of Medicine
- Huaqiao University
- Quanzhou 362021
- P. R. China
| | - Chen-Lei Lian
- School of Medicine
- Huaqiao University
- Quanzhou 362021
- P. R. China
| | - Mei-Ying Huang
- School of Medicine
- Huaqiao University
- Quanzhou 362021
- P. R. China
| | - Zhen-bo Du
- School of Materials Science and Engeering
- Huaqiao University
- Quanzhou 362021
- P. R. China
| | - Cui-Fang Wang
- College of Oceanology and Food Science
- Quanzhou Normal University
- Quanzhou 362000
- P. R. China
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