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Yang M, Hao Z, Wang X, Zhou S, Xiao C, Zhu D, Yang Y, Wei J, Zheng X, Feng W. Four undescribed iridoid glycosides with antidiabetic activity from fruits of Cornus officinalis Sieb. Et Zucc. Fitoterapia 2023; 165:105393. [PMID: 36528150 DOI: 10.1016/j.fitote.2022.105393] [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: 09/28/2022] [Revised: 12/09/2022] [Accepted: 12/11/2022] [Indexed: 12/15/2022]
Abstract
Four novel iridoid glycosides neocornuside E-H (1-4), together with nine known ones (5-13), were isolated from fruits of Cornus officinalis. Their chemical structures were determined on the basis of spectroscopic analyses and comparing of the literature data. All of the isolated compounds were evaluated for their antidiabetic activity in insulin resistant HepG2 cells. Compounds 2, 4, 5, 8, and 12 exhibited antidiabetic activities with EC50 values of 40.12, 2.54, 70.43, 15.31, and 4.86 μM, respectively. Flow Sight cytometry analysis indicated that compounds 2, 4, 5, 8, and 12 improved the ability of 2-NBDG uptake of insulin-induced HepG2 cells.
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Affiliation(s)
- Meng Yang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou 450046, China
| | - Zhiyou Hao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou 450046, China
| | - Xiaolan Wang
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou 450046, China; Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Shiqi Zhou
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou 450046, China
| | - Chaoyuan Xiao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou 450046, China
| | - Denghui Zhu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou 450046, China
| | - Ying Yang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou 450046, China
| | - Junjun Wei
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou 450046, China
| | - Xiaoke Zheng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou 450046, China.
| | - Weisheng Feng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou 450046, China.
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Hao ZY, Wang XL, Yang M, Cao B, Zeng MN, Zhou SQ, Li M, Cao YG, Xie SS, Zheng XK, Feng WS. Minor iridoid glycosides from the fruits of Cornus officinalis Sieb. et Zucc. and their anti-diabetic bioactivities. PHYTOCHEMISTRY 2023; 205:113505. [PMID: 36347307 DOI: 10.1016/j.phytochem.2022.113505] [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: 07/07/2022] [Revised: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
Fifteen previously undescribed minor iridoid glycosides, including four monomers and eleven dimers, were isolated from the fruits of Cornus officinalis Sieb. et Zucc. Their chemical structures were determined on the basis of spectroscopic data and chemical evidence. All of the isolated compounds were evaluated for their effects of the glucose consumption on the insulin resistant HepG2 cells, and four compounds, named cornuofficinalisides F, H, L, and O, increased the glucose consumption significantly at 10 μM, the EC50 values of them were determined to be 0.898, 1.625, 0.923, and 8.589 μM, respectively. Moreover, the four compounds could improve the ability of glucose uptake significantly in insulin resistant HepG2 cells.
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Affiliation(s)
- Zhi-You Hao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, People's Republic of China.
| | - Xiao-Lan Wang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China; Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China
| | - Meng Yang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, People's Republic of China
| | - Bing Cao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, People's Republic of China
| | - Meng-Nan Zeng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, People's Republic of China
| | - Shi-Qi Zhou
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, People's Republic of China
| | - Meng Li
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, People's Republic of China
| | - Yan-Gang Cao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, People's Republic of China
| | - Shuang-Shuang Xie
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, People's Republic of China
| | - Xiao-Ke Zheng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, People's Republic of China.
| | - Wei-Sheng Feng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, 450046, People's Republic of China.
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Secondary Metabolites with Biomedical Applications from Plants of the Sarraceniaceae Family. Int J Mol Sci 2022; 23:ijms23179877. [PMID: 36077275 PMCID: PMC9456395 DOI: 10.3390/ijms23179877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/25/2022] [Accepted: 08/26/2022] [Indexed: 11/17/2022] Open
Abstract
Carnivorous plants have fascinated researchers and hobbyists for centuries because of their mode of nutrition which is unlike that of other plants. They are able to produce bioactive compounds used to attract, capture and digest prey but also as a defense mechanism against microorganisms and free radicals. The main purpose of this review is to provide an overview of the secondary metabolites with significant biological activity found in the Sarraceniaceae family. The review also underlines the necessity of future studies for the biochemical characterization of the less investigated species. Darlingtonia, Heliamphora and Sarracenia plants are rich in compounds with potential pharmaceutical and medical uses. These belong to several classes such as flavonoids, with flavonol glycosides being the most abundant, monoterpenes, triterpenes, sesquiterpenes, fatty acids, alkaloids and others. Some of them are well characterized in terms of chemical properties and biological activity and have widespread commercial applications. The review also discusses biological activity of whole extracts and commercially available products derived from Sarraceniaceae plants. In conclusion, this review underscores that Sarraceniaceae species contain numerous substances with the potential to advance health. Future perspectives should focus on the discovery of new molecules and increasing the production of known compounds using biotechnological methods.
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Patel PN, Talati KS, Deshmukh AG, Desai DH, Patel NC. Secondary Amine Catalysed Diastereoselective Cross Domino Reaction: Simple and Efficient Synthesis of Heteroaryl-Substituted Cyclohexanols. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222040107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lee JH, Austin JR, Burdette JE, Murphy BT. Secoiridoids from Dogwood ( Cornus officinalis) Potentiate Progesterone Signaling. JOURNAL OF NATURAL PRODUCTS 2021; 84:2612-2616. [PMID: 34411479 PMCID: PMC8906238 DOI: 10.1021/acs.jnatprod.1c00516] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The use of botanical dietary supplements for the alleviation of conditions such as hot flashes, premenstrual syndrome, and fertility is prolific worldwide. Estrogen and progesterone receptors (ER and PR) and their corresponding steroid hormones are critical for the relief of hot flashes and the treatment of patients who develop endometriosis, and these pathways can influence the development of endometrial, ovarian, and breast cancers. However, few studies have investigated or identified the natural product components in herbal supplements that act on the PR. In the current study, a new secoiridoid, demethoxy-cornuside (1), along with six known secoiridoids (2-7) were isolated from the twigs of dogwood (Cornus officinalis) by bioassay-guided isolation with a progesterone response element (PRE)/luciferase (Luc) reporter assay in Ishikawa cells. Four phytoprogestins (1, 2, 6, 7) potentiated the effect of progesterone in the PRE/Luc assay. This study demonstrates that C. officinalis components might potentiate progesterone signaling in the presence of progesterone, which could modify progesterone receptor action in hormone-responsive tissues such as the uterus and mammary gland.
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Affiliation(s)
- Jung-Ho Lee
- Department of Pharmaceutical Sciences: Center for Biomolecular Sciences: College of Pharmacy, 833 S. Wood St., University of Illinois at Chicago, Chicago, IL 60612 United States
| | - Julia R. Austin
- Department of Pharmaceutical Sciences: Center for Biomolecular Sciences: College of Pharmacy, 833 S. Wood St., University of Illinois at Chicago, Chicago, IL 60612 United States
| | - Joanna E. Burdette
- Department of Pharmaceutical Sciences: Center for Biomolecular Sciences: College of Pharmacy, 833 S. Wood St., University of Illinois at Chicago, Chicago, IL 60612 United States
| | - Brian T. Murphy
- Department of Pharmaceutical Sciences: Center for Biomolecular Sciences: College of Pharmacy, 833 S. Wood St., University of Illinois at Chicago, Chicago, IL 60612 United States
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Ye XS, He J, Cheng YC, Zhang L, Qiao HY, Pan XG, Zhang J, Liu SN, Zhang WK, Xu JK. Cornusides A-O, Bioactive Iridoid Glucoside Dimers from the Fruit of Cornus officinalis. JOURNAL OF NATURAL PRODUCTS 2017; 80:3103-3111. [PMID: 29140705 DOI: 10.1021/acs.jnatprod.6b01127] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Fifteen new and rare iridoid glucoside dimers, cornusides A-O (1-15), and 10 known iridoid glucosides (16-25) were isolated from the fruit of Cornus officinalis. These new chemical structures were established through spectroscopic analysis (UV, IR, HRESIMS, 1D and 2D NMR). Compounds 1-25 were tested for their inhibitory activities by measuring IL-6-induced STAT3 promoter activity in HepG2 cells, and 3, 12, 17, 22, and 23 showed inhibitory effects, with IC50 values of 11.9, 12.2, 14.0, 7.0, and 6.9 μM, respectively.
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Affiliation(s)
- Xian-Sheng Ye
- School of Life Sciences & School of Chinese Medicine Sciences, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital , Beijing 100029, People's Republic of China
| | - Jun He
- Department of Pharmacy, China-Japan Friendship Hospital , Beijing 100029, People's Republic of China
| | - Yung-Chi Cheng
- Department of Pharmacology, Yale University School of Medicine , New Haven, Connecticut 06520, United States
| | - Lei Zhang
- Department of Pharmacy, Beijing Shijitan Hospital, Capital Medical University , Beijing 100038, People's Republic of China
| | - Hao-Yi Qiao
- School of Life Sciences & School of Chinese Medicine Sciences, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Xue-Ge Pan
- School of Life Sciences & School of Chinese Medicine Sciences, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Jia Zhang
- School of Life Sciences & School of Chinese Medicine Sciences, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Shu-Na Liu
- School of Life Sciences & School of Chinese Medicine Sciences, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Wei-Ku Zhang
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital , Beijing 100029, People's Republic of China
| | - Jie-Kun Xu
- School of Life Sciences & School of Chinese Medicine Sciences, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
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Hotti H, Gopalacharyulu P, Seppänen-Laakso T, Rischer H. Metabolite profiling of the carnivorous pitcher plants Darlingtonia and Sarracenia. PLoS One 2017; 12:e0171078. [PMID: 28222171 PMCID: PMC5319649 DOI: 10.1371/journal.pone.0171078] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 01/17/2017] [Indexed: 11/19/2022] Open
Abstract
Sarraceniaceae is a New World carnivorous plant family comprising three genera: Darlingtonia, Heliamphora, and Sarracenia. The plants occur in nutrient-poor environments and have developed insectivorous capability in order to supplement their nutrient uptake. Sarracenia flava contains the alkaloid coniine, otherwise only found in Conium maculatum, in which its biosynthesis has been studied, and several Aloe species. Its ecological role and biosynthetic origin in S. flava is speculative. The aim of the current research was to investigate the occurrence of coniine in Sarracenia and Darlingtonia and to identify common constituents of both genera, unique compounds for individual variants and floral scent chemicals. In this comprehensive metabolic profiling study, we looked for compound patterns that are associated with the taxonomy of Sarracenia species. In total, 57 different Sarracenia and D. californica accessions were used for metabolite content screening by gas chromatography-mass spectrometry. The resulting high-dimensional data were studied using a data mining approach. The two genera are characterized by a large number of metabolites and huge chemical diversity between different species. By applying feature selection for clustering and by integrating new biochemical data with existing phylogenetic data, we were able to demonstrate that the chemical composition of the species can be explained by their known classification. Although transcriptome analysis did not reveal a candidate gene for coniine biosynthesis, the use of a sensitive selected ion monitoring method enabled the detection of coniine in eight Sarracenia species, showing that it is more widespread in this genus than previously believed.
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Affiliation(s)
- Hannu Hotti
- VTT Technical Research Centre of Finland Ltd, Espoo, Finland
| | | | | | - Heiko Rischer
- VTT Technical Research Centre of Finland Ltd, Espoo, Finland
- * E-mail:
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Peng W, Liang S, Hu J, Chen Z, Zheng X. The cytotoxic and tyrosine kinase inhibitory properties of C21 steroids and iridoids from the tubers of Alocasia cucullata. J Nat Med 2016; 70:602-9. [DOI: 10.1007/s11418-016-0982-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Accepted: 02/28/2016] [Indexed: 01/17/2023]
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New cycloartane saponin and monoterpenoid glucoindole alkaloids from Mussaenda luteola. Fitoterapia 2016; 110:129-34. [PMID: 26969788 DOI: 10.1016/j.fitote.2016.03.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 03/05/2016] [Accepted: 03/07/2016] [Indexed: 11/21/2022]
Abstract
A new cycloartane-type saponin with unusual hydroxylation at C-17 and a unique side chain, 9 (R), 19, 22 (S), 24 (R) bicyclolanost-3β, 12α, 16β, 17α tetrol-25-one 3-O-β-d-glucopyranosyl-(1→2)-β-d-glucopyranoside (1) and two new monoterpenoid glucoindole alkaloids, 10-methoxy pumiloside (2) and the previously chemically synthesized, 10-methoxy strictosidine (3) along with other five known compounds, 7α-morroniside (4), 7-epi-loganin (5), (7β)-7-O-methylmorroniside (6), 5(S)-5-carboxystrictisidine (7) and apigenin-7-O-neohesperidoside (8) were isolated from the aerial parts of Mussaenda luteola (Rubiaceae). The structural elucidation of the isolates was accomplished by extensive (1D and 2D NMR) spectroscopic data analysis and HR-ESI-MS. Compounds 4-8 were reported for the first time from the genus Mussaenda. Interestingly, this is the first report for the occurrence of the monoterpenoid glucoindole-type alkaloids in the genus which might be useful for the chemotaxonomic evaluation of the genus Mussaenda. All isolates were evaluated for their antiprotozoal activities. Compound 7 showed good antitrypanosomal activity with IC50 and IC90 values of 13.7 and 16.6 μM compared to IC50 and IC90 values of 13.06 and 28.99 μM for the positive control DFMO, difluoromethylornithine.
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Iridoid glycosides from the flower buds of Lonicera japonica and their nitric oxide production and α-glucosidase inhibitory activities. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.08.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Harris CS, Asim M, Saleem A, Haddad PS, Arnason JT, Bennett SAL. Characterizing the cytoprotective activity of Sarracenia purpurea L., a medicinal plant that inhibits glucotoxicity in PC12 cells. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 12:245. [PMID: 23216659 PMCID: PMC3556504 DOI: 10.1186/1472-6882-12-245] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Accepted: 11/30/2012] [Indexed: 11/10/2022]
Abstract
BACKGROUND The purple pitcher plant, Sarracenia purpurea L., is a widely distributed species in North America with a history of use as both a marketed pain therapy and a traditional medicine in many aboriginal communities. Among the Cree of Eeyou Istchee in northern Québec, the plant is employed to treat symptoms of diabetes and the leaf extract demonstrates multiple anti-diabetic activities including cytoprotection in an in vitro model of diabetic neuropathy. The current study aimed to further investigate this activity by identifying the plant parts and secondary metabolites that contribute to these cytoprotective effects. METHODS Ethanolic extracts of S. purpurea leaves and roots were separately administered to PC12 cells exposed to glucose toxicity with subsequent assessment by two cell viability assays. Assay-guided fractionation of the active extract and fractions was then conducted to identify active principles. Using high pressure liquid chromatography together with mass spectrometry, the presence of identified actives in both leaf and root extracts were determined. RESULTS The leaf extract, but not that of the root, prevented glucose-mediated cell loss in a concentration-dependent manner. Several fractions elicited protective effects, indicative of multiple active metabolites, and, following subfractionation of the polar fraction, hyperoside (quercetin-3-O-galactoside) and morroniside were isolated as active constituents. Phytochemical analysis confirmed the presence of hyperoside in the leaf but not root extract and, although morroniside was detected in both organs, its concentration was seven times higher in the leaf. CONCLUSION Our results not only support further study into the therapeutic potential and safety of S. purpurea as an alternative and complementary treatment for diabetic complications associated with glucose toxicity but also identify active principles that can be used for purposes of standardization and quality control.
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Li N, Di L, Gao WC, Wang KJ, Zu LB. Cytotoxic iridoids from the roots of Patrinia scabra. JOURNAL OF NATURAL PRODUCTS 2012; 75:1723-1728. [PMID: 23002924 DOI: 10.1021/np300286t] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Six new iridoid glucosides, patriridosides D-I (1-6), and one new iridoid, scabrol A (7), along with 12 known non-glycosidic and glycosidic iridoids (8-19), have been isolated from an ethanolic extract of the roots of Patrinia scabra. The cytotoxic activity of the isolated compounds against human cervical carcinoma HeLa cells and gastric carcinoma MNK-45 cells was evaluated using the MTT assay. Compounds 1, 4-6, 8, and 18 showed cytotoxic activities against the MNK-45 cell line with respective IC₅₀ values of 15.6, 8.7, 9.4, 30.9, 23.8, and 11.2 μM, while only compound 10 showed cytotoxicity against the HeLa cell line, with an IC₅₀ value of 24.5 μM.
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Affiliation(s)
- Ning Li
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, People's Republic of China.
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Muhammad A, Guerrero-Analco JA, Martineau LC, Musallam L, Madiraju P, Nachar A, Saleem A, Haddad PS, Arnason JT. Antidiabetic compounds from Sarracenia purpurea used traditionally by the Eeyou Istchee Cree First Nation. JOURNAL OF NATURAL PRODUCTS 2012; 75:1284-8. [PMID: 22738356 DOI: 10.1021/np3001317] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Through ethnobotanical surveys, the CIHR Team in Aboriginal Antidiabetic Medicines identified 17 boreal forest plants stemming from the pharmacopeia of the Cree First Nations of Eeyou Istchee (James Bay region of Northern Quebec) that were used traditionally against diabetes symptoms. The leaves of Sarracenia purpurea (pitcher plant), one of the identified Cree plants, exhibited marked antidiabetic activity in vitro by stimulating glucose uptake in C2C12 mouse muscle cells and by reducing glucose production in H4IIE rat liver cells. Fractionation guided by glucose uptake in C2C12 cells resulted in the isolation of 11 compounds from this plant extract, including a new phenolic glycoside, flavonoid glycosides, and iridoids. Compounds 6 (isorhamnetin-3-O-glucoside), 8 [kaempferol-3-O-(6″-caffeoylglucoside], and 11 (quercetin-3-O-galactoside) potentiated glucose uptake in vitro, which suggests they represent active principles of S. purpurea (EC(50) values of 18.5, 13.8, and 60.5 μM, respectively). This is the first report of potentiation of glucose uptake by compounds 6 and 8, while compound 11 (isolated from Vaccinium vitis) was previously shown to enhance glucose uptake. Treatment of H4IIE liver cells with the new compound 1, 6'-O-caffeoylgoodyeroside, decreased hepatic glucose production by reducing glucose-6-phosphatase enzymatic activity (IC(50) = 13.6 μM), which would contribute to lowering glycemia and to the antidiabetic potential of S. purpurea.
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Affiliation(s)
- Asim Muhammad
- Department of Biology, University of Ottawa , 20 Marie-Curie, Ottawa, ON, Canada, K1N 6N5
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Dinda B, Debnath S, Banik R. Naturally Occurring Iridoids and Secoiridoids. An Updated Review, Part 4. Chem Pharm Bull (Tokyo) 2011; 59:803-33. [DOI: 10.1248/cpb.59.803] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Sudhan Debnath
- Department of Chemistry, Maharaja Bir Bikram (M.B.B.) College
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Takeda Y, Tanigawa N, Sunghwa F, Ninomiya M, Hagiwara M, Matsushita K, Koketsu M. Morroniside cinnamic acid conjugate as an anti-inflammatory agent. Bioorg Med Chem Lett 2010; 20:4855-7. [PMID: 20621474 DOI: 10.1016/j.bmcl.2010.06.095] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2010] [Revised: 06/15/2010] [Accepted: 06/17/2010] [Indexed: 01/15/2023]
Abstract
A morroniside cinnamic acid conjugate was prepared and evaluated on E-selectin mediated cell-cell adhesion as an important role in inflammatory processes. 7-O-Cinnamoylmorroniside exhibited excellent anti-inflammatory activity (IC(50)=49.3 microM) by inhibiting the expression of E-selectin; further, it was more active than another cinnamic-acid-conjugated iridoid glycoside (harpagoside; IC(50)=88.2 microM), 7-O-methylmorroniside, and morroniside itself. As a result, 7-O-cinnamoylmorroniside was observed to be a potent inhibitor of TNF-alpha-induced E-selectin expression.
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Affiliation(s)
- Yoshinori Takeda
- Department of Chemistry, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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Gülcemal D, Masullo M, Alankuş-Calişkan O, Karayildirim T, Senol SG, Piacente S, Bedir E. Monoterpenoid glucoindole alkaloids and iridoids from Pterocephalus pinardii. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2010; 48:239-243. [PMID: 20049748 DOI: 10.1002/mrc.2559] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A new secondary metabolite, pterocephaline, along with the known cantleyoside, 7alpha-morroniside, 3beta,5alpha-tetrahydrodesoxycordifoline lactam, 5S-5-carboxyvincoside, sweroside, and loganin have been isolated from the aerial parts of P. pinardii (Dipsacaceae). Moreover, cantleyoside-methyl-hemiacetal and cantleyoside-dimethyl-acetal were obtained as seco-iridoid artifacts. The structures were elucidated by extensive spectroscopic methods including 1D-((1)H, (13)C and TOCSY) and 2D-NMR (DQF-COSY, HSQC and HMBC). Monoterpenoid glucoindole alkaloids were encountered for the first time in Dipsacaceae family.
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Affiliation(s)
- Derya Gülcemal
- Department of Chemistry, Faculty of Science, Ege University, Bornova, 35100 Izmir, Turkey
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