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Zhao T, Nong X, Zhang X, Zhou X, Yu Z, Li X, Chen G. Four new diterpenoids from the aerial parts of Leucas zeylanica (L.) R. Br. Fitoterapia 2024; 175:105948. [PMID: 38588904 DOI: 10.1016/j.fitote.2024.105948] [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: 12/25/2023] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/10/2024]
Abstract
Four new undescribed halimane- and labdane-type diterpenoids, named zeylleucapenoids E-H (1-4), along with four known analogues (5-8), were isolated from the aerial parts of Leucas zeylanica (L.) R. Br. Their structures were determined by comprehensive spectroscopic analysis and computational calculations. Compounds 1 and 2 are the highly modified halimane diterpenoids featuring a 6/6/6-fused tricyclic system with an unusual six-membered 6,11-ether ring. Compound 8 exhibits nontoxic effects for zebrafish embryo, while it displays efficient reduction against NO production in a dose-dependent manner and strongly suppresses the secretion of LPS-induced TNF-α and IL-6 cytokines in RAW264.7 macrophages. In addition, marked reductions of iNOS and COX-2 expression were observed. Molecular docking analysis indicated that 8 has high affinities with the target amino acid residues on protein-binding sites, which may be a possible mechanism contributing to the anti-inflammatory potential of this molecule.
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Affiliation(s)
- Ting Zhao
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou, Hainan 571158, China; School of Pharmaceutical Sciences, Hubei University of Medicine, Shiyan, China; Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan 571158, China
| | - Xuhua Nong
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou, Hainan 571158, China; Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan 571158, China
| | - Xuan Zhang
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou, Hainan 571158, China; Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan 571158, China
| | - Xueming Zhou
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou, Hainan 571158, China; Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan 571158, China
| | - Zhangxin Yu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou, Hainan 571158, China; Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan 571158, China
| | - Xiaobao Li
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou, Hainan 571158, China; Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan 571158, China.
| | - Guangying Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou, Hainan 571158, China; Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan 571158, China.
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Zhao T, Zhang X, Nong XH, Zhou XM, Chai RR, Li XB, Chen GY. Zeylleucapenoids A-D, Highly Oxygenated Diterpenoids with Anti-Inflammatory Activity from Leucas zeylanica (L.) R. Br. Molecules 2023; 28:molecules28114472. [PMID: 37298948 DOI: 10.3390/molecules28114472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/21/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Four previously undescribed highly oxygenated diterpenoids (1-4), zeylleucapenoids A-D, characterized by halimane and labdane skeletons, were isolated from the aerial parts of Leucas zeylanica. Their structures were elucidated primarily via NMR experiments. The absolute configuration of 1 was established using theoretical ECD calculations and X-ray crystallographic analysis, whereas those for 2-4 were assigned using theoretical ORD calculations. Zeylleucapenoids A-D were tested for anti-inflammatory activity against nitric oxide (NO) production in RAW264.7 macrophages, of which only 4 showed significant efficacy with an IC50 value of 38.45 μM. Further, active compound 4 was also evaluated for the inhibition of the release of pro-inflammatory cytokines TNF-α and IL-6 and was found to have a dose-dependent inhibitory effect, while it showed nontoxic activity for zebrafish embryos. A subsequent Western blotting experiment revealed that 4 inhibited the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2). Furthermore, molecular docking analysis indicated that the possible mechanism of action for 4 may be bind to targets via hydrogen and hydrophobic bond interactions.
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Affiliation(s)
- Ting Zhao
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou 571158, China
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Xuan Zhang
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou 571158, China
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Xu-Hua Nong
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou 571158, China
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Xue-Ming Zhou
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou 571158, China
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Ru-Ru Chai
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou 571158, China
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Xiao-Bao Li
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou 571158, China
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Guang-Ying Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University, Haikou 571158, China
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
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Liu W, Wu P, Song Z, Nie F, Zhang L, Lee D, Nakajima A, Xu J, Guo Y. Iridoids from Patrinia heterophylla and their anti-inflammatory activity. PHYTOCHEMISTRY 2023; 212:113720. [PMID: 37187247 DOI: 10.1016/j.phytochem.2023.113720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/04/2023] [Accepted: 05/09/2023] [Indexed: 05/17/2023]
Abstract
A phytochemical investigation led to the isolation of five undescribed compounds (1-5) from the methanol extract of the rhizomes and roots of Patrinia heterophylla. The structures and configurations of these compounds were characterized by HRESIMS, ECD, and NMR data analyses. These compounds were assayed for their anti-inflammatory potential using LPS-stimulated BV-2 cells, of which compound 4 showed strong nitric oxide (NO) inhibitory effects with an IC50 of 6.48 μM. The potential anti-inflammatory mechanism was examined utilizing Western blotting and molecular docking. Further in vivo anti-inflammatory experiments revealed that compound 4 inhibited the production of NO and reactive oxygen species in the zebrafish model.
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Affiliation(s)
- Wenhui Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, And Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300350, PR China
| | - Peng Wu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, And Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300350, PR China
| | - Ziteng Song
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, And Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300350, PR China
| | - Fan Nie
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, And Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300350, PR China
| | - Liang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, PR China.
| | - Dongho Lee
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 136-713, Republic of Korea
| | - Akira Nakajima
- Department of Applied Biology and Food Sciences, Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, 036-8561, Japan
| | - Jing Xu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, And Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300350, PR China.
| | - Yuanqiang Guo
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, And Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300350, PR China; Department of Applied Biology and Food Sciences, Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, 036-8561, Japan.
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Çalhan SD, Meryemoğlu B, Eroğlu P, Saçlı B, Kalderis D. Subcritical Water Extraction of Onosma mutabilis: Process Optimization and Chemical Profile of the Extracts. Molecules 2023; 28:molecules28052314. [PMID: 36903560 PMCID: PMC10005700 DOI: 10.3390/molecules28052314] [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: 02/10/2023] [Revised: 03/01/2023] [Accepted: 03/01/2023] [Indexed: 03/06/2023] Open
Abstract
The aboveground and root parts of Onosma mutabilis were extracted using subcritical water and the process was optimized with response surface methodology. The composition of the extracts was determined by chromatographic methods and compared to that of conventional maceration of the plant. The optimum total phenolic contents for the aboveground part and the roots were 193.9 and 174.4 μg/g, respectively. These results were achieved at a subcritical water temperature of 150 °C, an extraction time of 180 min, and a water/plant ratio of 0.1, for both parts of the plant. Principal component analysis revealed that the roots contained mainly phenols, ketones, and diols, with the aboveground part mostly alkenes and pyrazines, whereas the extract from maceration contained mainly terpenes, esters, furans, and organic acids. The quantification of selected phenolic substances showed that subcritical water extraction compared favorably to maceration, especially with respect to pyrocatechol (1062 as compared to 10.2 μg/g) and epicatechin (1109 as compared to 23.4 μg/g). Furthermore, the roots of the plant contained twice as much of these two phenolics compared to the aboveground part. Subcritical water extraction of O. mutabilis is an environmentally friendly method that can extract selected phenolics at higher concentrations compared to maceration.
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Affiliation(s)
- Selda Doğan Çalhan
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Mersin University, Mersin 33169, Turkey
- Correspondence: (S.D.Ç.); (D.K.)
| | - Bahar Meryemoğlu
- Central Research Laboratory, Cukurova University, Adana 01330, Turkey
| | - Pelin Eroğlu
- Department of Chemistry, Science Faculty, Mersin University, Mersin 33110, Turkey
| | - Barış Saçlı
- Department of Chemistry, Science Faculty, Mersin University, Mersin 33110, Turkey
| | - Dimitrios Kalderis
- Department of Electronic Engineering, Hellenic Mediterranean University, 73100 Chania, Greece
- Correspondence: (S.D.Ç.); (D.K.)
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Li J, Wang R, Wang Y, Zeng J, Xu Z, Xu J, He X. Anti-Inflammatory Benzofuran Neolignans from the Fruits of Canarium album (Chinese Olive). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:1122-1133. [PMID: 35049305 DOI: 10.1021/acs.jafc.1c06457] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Chinese olive is a well-known fruit in China. In this study, we explored anti-inflammatory phytochemicals of Chinese olive fruit, which led to the isolation of nine pairs of new enantiomers of benzofuran neolignans (1a/1b-9a/9b). Among them, the planar structures of compounds 1-3 were undescribed previously, and the absolute configurations of all compounds were reported first. Their stereostructures were elucidated on the basis of the interpretation of NMR, HRESIMS, and electronic circular dichroism (ECD) data, as well as ECD calculation. All compounds exhibited pronounced inhibitory effects on lipopolysaccharide-induced nitric oxide (NO) production in RAW 264.7 macrophages with IC50 values ranging from 6.0 to 30.2 μM. Furthermore, compounds 6a and 6b exert anti-inflammatory effects by blocking the nuclear translocation of NF-κB, thereby reducing the expression of pro-inflammatory mediators COX-2, iNOS, IL-1β, and IL-6. This study could provide some guidance and evidence to the further development and utilization of the Chinese olive.
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Affiliation(s)
- Jiming Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
| | - Ru Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
| | - Yihai Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
| | - Jia Zeng
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Zeyong Xu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jingwen Xu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
| | - Xiangjiu He
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
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6
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Arumugham T, K R, Hasan SW, Show PL, Rinklebe J, Banat F. Supercritical carbon dioxide extraction of plant phytochemicals for biological and environmental applications - A review. CHEMOSPHERE 2021; 271:129525. [PMID: 33445028 DOI: 10.1016/j.chemosphere.2020.129525] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 11/17/2020] [Accepted: 12/29/2020] [Indexed: 06/12/2023]
Abstract
Recently, supercritical fluid CO2 extraction (SFE) has emerged as a promising and pervasive technology over conventional extraction techniques for various applications, especially for bioactive compounds extraction and environmental pollutants removal. In this context, temperature and pressure regulate the solvent density and thereby effects the yield, selectivity, and biological/therapeutic properties of the extracted components. However, the nature of plant matrices primarily determines the extraction mechanism based on either density or vapor pressure. The present review aims to cover the recent research and developments of SFE technique in the extraction of bioactive plant phytochemicals with high antioxidant, antibacterial, antimalarial, and anti-inflammatory activities, influencing parameters, process conditions, the investigations for improving the yield and selectivity. In another portion of this review focuses on the ecotoxicology and toxic metal recovery applications. Nonpolar properties of Sc-CO2 create strong solvent strength via distinct intermolecular interaction forces with micro-pollutants and toxic metal complexes. This results in efficient removal of these contaminants and makes SFE technology as a superior alternative for conventional solvent-based treatment methods. Moreover, a compelling assessment on the therapeutic, functional, and solvent properties of SFE is rarely focused, and hence this review would add significant value to the SFE based research studies. Furthermore, we mention the limitations and potential of future perspectives related to SFE applications.
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Affiliation(s)
- Thanigaivelan Arumugham
- Department of Chemical Engineering, Khalifa University, 127788, Abu Dhabi, United Arab Emirates.
| | - Rambabu K
- Department of Chemical Engineering, Khalifa University, 127788, Abu Dhabi, United Arab Emirates.
| | - Shadi W Hasan
- Department of Chemical Engineering, Khalifa University, 127788, Abu Dhabi, United Arab Emirates.
| | - Pau Loke Show
- Department of Chemical Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500, Selangor Darul Ehsan, Malaysia.
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, Seoul, 05006, Republic of Korea.
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University, 127788, Abu Dhabi, United Arab Emirates.
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Natural iridoids from Patrinia heterophylla showing anti-inflammatory activities in vitro and in vivo. Bioorg Chem 2020; 104:104331. [PMID: 33142407 DOI: 10.1016/j.bioorg.2020.104331] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/13/2020] [Accepted: 09/28/2020] [Indexed: 01/19/2023]
Abstract
Inflammation, especially chronic inflammation, has been found to be closely related to the pathology of many diseases and the discovery of bioactive natural products to inhibit NO production is one of strategies to treat inflammation. In our continuous search for bioactive natural substances as potential anti-inflammatory agents, five new compounds (1-5) were extracted and purified from Patrinia heterophylla. The NMR and MS data analysis, along with electronic circular dichroism (ECD) calculations, led to the identification of these isolates, which were new iridoids. Using cell and zebrafish models, the in vitro and in vivo anti-inflammatory effects were conducted to evaluate the potency of anti-inflammation of these compounds. The preliminary mechanism was explored using molecular docking and Western blotting experiments.
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Wu P, Song Z, Wang X, Li Y, Li Y, Cui J, Tuerhong M, Jin DQ, Abudukeremu M, Lee D, Xu J, Guo Y. Bioactive triterpenoids from Lantana camara showing anti-inflammatory activities in vitro and in vivo. Bioorg Chem 2020; 101:104004. [DOI: 10.1016/j.bioorg.2020.104004] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 06/06/2020] [Accepted: 06/08/2020] [Indexed: 12/17/2022]
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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. JOURNAL OF NATURAL PRODUCTS 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] [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.
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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
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10
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Liang JH, Luan ZL, Tian XG, Zhao WY, Wang YL, Sun CP, Huo XK, Deng S, Zhang BJ, Zhang ZJ, Ma XC. Uncarialins A-I, Monoterpenoid Indole Alkaloids from Uncaria rhynchophylla as Natural Agonists of the 5-HT 1A Receptor. JOURNAL OF NATURAL PRODUCTS 2019; 82:3302-3310. [PMID: 31789520 DOI: 10.1021/acs.jnatprod.9b00532] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Nine new monoterpenoid indole alkaloids, uncarialins A-I (1-9), were isolated from Uncaria rhynchophylla as well as 14 known analogues (10-23). Their structures were determined by HRESIMS, 1D and 2D NMR, and experimental and calculated electronic circular dichroism data. Compounds 5, 7, 15, and 22 displayed significant agonistic effects against the 5-HT1A receptor with EC50 values of 2.2 ± 0.1, 0.1 ± 0.1, 1.6 ± 0.3, and 2.0 ± 0.5 μM, respectively. The mechanisms of action of these four compounds with the 5-HT1A receptor were investigated by molecular docking, and the results suggested that amino acid residues Asp116, Thr196, Asn386, and Tyr390 played critical roles in the observed activity of the above-mentioned compounds.
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Affiliation(s)
- Jia-Hao Liang
- College of Pharmacy, College of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease , Dalian Medical University , Dalian 116044 , People's Republic of China
| | - Zhi-Lin Luan
- College of Pharmacy, College of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease , Dalian Medical University , Dalian 116044 , People's Republic of China
| | - Xiang-Ge Tian
- College of Pharmacy, College of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease , Dalian Medical University , Dalian 116044 , People's Republic of China
| | - Wen-Yu Zhao
- College of Pharmacy, College of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease , Dalian Medical University , Dalian 116044 , People's Republic of China
| | - Ya-Li Wang
- College of Pharmacy, College of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease , Dalian Medical University , Dalian 116044 , People's Republic of China
| | - Cheng-Peng Sun
- College of Pharmacy, College of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease , Dalian Medical University , Dalian 116044 , People's Republic of China
| | - Xiao-Kui Huo
- College of Pharmacy, College of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease , Dalian Medical University , Dalian 116044 , People's Republic of China
| | - Sa Deng
- College of Pharmacy, College of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease , Dalian Medical University , Dalian 116044 , People's Republic of China
| | - Bao-Jing Zhang
- College of Pharmacy, College of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease , Dalian Medical University , Dalian 116044 , People's Republic of China
| | - Zhan-Jun Zhang
- State Key Laboratory of Cognitive Neuroscience and Learning , Beijing Normal University , Beijing 100875 , People's Republic of China
| | - Xiao-Chi Ma
- College of Pharmacy, College of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease , Dalian Medical University , Dalian 116044 , People's Republic of China
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy , Xuzhou Medical University , Xuzhou 221004 , People's Republic of China
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