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Rubiano-Buitrago P, Pradhan S, Paetz C, Rowland HM. New Structures, Spectrometric Quantification, and Inhibitory Properties of Cardenolides from Asclepias curassavica Seeds. Molecules 2022; 28:molecules28010105. [PMID: 36615300 PMCID: PMC9822358 DOI: 10.3390/molecules28010105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/14/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022] Open
Abstract
Cardiac glycosides are a large class of secondary metabolites found in plants. In the genus Asclepias, cardenolides in milkweed plants have an established role in plant-herbivore and predator-prey interactions, based on their ability to inhibit the membrane-bound Na+/K+-ATPase enzyme. Milkweed seeds are eaten by specialist lygaeid bugs, which are the most cardenolide-tolerant insects known. These insects likely impose natural selection for the repeated derivatisation of cardenolides. A first step in investigating this hypothesis is to conduct a phytochemical profiling of the cardenolides in the seeds. Here, we report the concentrations of 10 purified cardenolides from the seeds of Asclepias curassavica. We report the structures of new compounds: 3-O-β-allopyranosyl coroglaucigenin (1), 3-[4'-O-β-glucopyranosyl-β-allopyranosyl] coroglaucigenin (2), 3'-O-β-glucopyranosyl-15-β-hydroxycalotropin (3), and 3-O-β-glucopyranosyl-12-β-hydroxyl coroglaucigenin (4), as well as six previously reported cardenolides (5-10). We test the in vitro inhibition of these compounds on the sensitive porcine Na+/K+-ATPase. The least inhibitory compound was also the most abundant in the seeds-4'-O-β-glucopyranosyl frugoside (5). Gofruside (9) was the most inhibitory. We found no direct correlation between the number of glycosides/sugar moieties in a cardenolide and its inhibitory effect. Our results enhance the literature on cardenolide diversity and concentration among tissues eaten by insects and provide an opportunity to uncover potential evolutionary relationships between tissue-specific defense expression and insect adaptations in plant-herbivore interactions.
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Affiliation(s)
- Paola Rubiano-Buitrago
- Research Group Predators and Toxic Prey, Max Planck Institute for Chemical Ecology, Hans Knöll Straße 8, 07745 Jena, Germany
- Research Group Biosynthesis/NMR, Max Planck Institute for Chemical Ecology, Hans Knöll Straße 8, 07745 Jena, Germany
- Correspondence: (P.R.-B.); (H.M.R.)
| | - Shrikant Pradhan
- Research Group Predators and Toxic Prey, Max Planck Institute for Chemical Ecology, Hans Knöll Straße 8, 07745 Jena, Germany
| | - Christian Paetz
- Research Group Biosynthesis/NMR, Max Planck Institute for Chemical Ecology, Hans Knöll Straße 8, 07745 Jena, Germany
| | - Hannah M. Rowland
- Research Group Predators and Toxic Prey, Max Planck Institute for Chemical Ecology, Hans Knöll Straße 8, 07745 Jena, Germany
- Correspondence: (P.R.-B.); (H.M.R.)
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Two cardenolide glycosides from the seed fairs of Asclepias curassavica and their cytotoxic activities. Chin J Nat Med 2022; 20:202-209. [DOI: 10.1016/s1875-5364(21)60098-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Indexed: 11/20/2022]
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Warashina T, Shirota O, Ohara K. C21 Steroidal Glycosides from the Roots of Oxypetalum caeruleum. Chem Pharm Bull (Tokyo) 2022; 70:580-588. [PMID: 35908924 DOI: 10.1248/cpb.c22-00079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
The MeOH extract from dried roots of Oxypetalum caeruleum (Apocynaceae) plants yielded seventeen new pregnane glycosides, some of which had the acylated-ramanone or -isoramanone type aglycone. The structures of these compounds were established using NMR, MS spectroscopic analysis and chemical evidence.
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Affiliation(s)
| | - Osamu Shirota
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University
| | - Kazuaki Ohara
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University
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Taxonomic Implication of Integrated Chemical, Morphological, and Anatomical Attributes of Leaves of Eight Apocynaceae Taxa. DIVERSITY-BASEL 2020. [DOI: 10.3390/d12090334] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Up to now, the taxonomic conflict of the Apocynaceae family has attracted the attention of scientists and researchers worldwide. Recently, this family was divided into five subfamilies. The present study aims to investigate the implication of interlacing macro-, micro-morphological, anatomical, and chemical characteristics of the leaves of eight Apocynaceae plants (Adenium obesum, Dipladenia boliviensis, Carissacarandas, Nerium oleander, Asclepias curassavica, Calotropisprocera, Acokanthera oblongifolia, and Thevetia neriifolia), and to provide valuable taxonomic differentiation of these species. The macro-morphological investigation includes shape, apex, base, and venation of leaves, while the micro-morphological study includes leaf epidermal cells, stomata, and trichomes. The anatomical features of the leaf blade were studied by scanning electron microscope (SEM). Additionally, the chemical composition of the silylated methanolic extract was analyzed by Gas chromatography–mass spectroscopy (GC-MS). Sixty-three compounds were characterized from the silylated extracts of the eight plants, where quinic acid, sucrose, D-pinitol, and D-(−)-fructopyranose were determined as major compounds. The Principal Component Analysis (PCA) based on the chemical composition revealed a significant chemical correlation among all species with the presence of sugars and amino acids, as well as phenolic acids and iridoid glycosides. The cluster analysis, based on all merged characters, showed that the eight species can be categorized into three clusters. The first cluster comprises A.obesum, A. curassavica, and T. neriifolia, while the second cluster contains D. boliviensis, N. oleander, A. oblongifolia, and C. carandas, and the third cluster consists of C. procera alone. This cluster revealed some similarities to the recent classification of Apocynaceae, while it showed inconsistency regarding A.obesum, C. procera, and N. oleander. Due to the obtained inconsistent data and observed variation among the studied species, further study is recommended for more characterization of these species, based on additional parameters, including molecular characteristics, particularly A.obesum, C. procera, and N. oleander.
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Qamar H, Rehman S, Chauhan D. Current Status and Future Perspective for Research on Medicinal Plants with Anticancerous Activity and Minimum Cytotoxic Value. Curr Drug Targets 2019; 20:1227-1243. [DOI: 10.2174/1389450120666190429120314] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/18/2019] [Accepted: 04/18/2019] [Indexed: 12/14/2022]
Abstract
Cancer is the second leading cause of morbidity and mortality worldwide. Although chemotherapy
and radiotherapy enhance the survival rate of cancerous patients but they have several acute
toxic effects. Therefore, there is a need to search for new anticancer agents having better efficacy and
lesser side effects. In this regard, herbal treatment is found to be a safe method for treating and preventing
cancer. Here, an attempt has been made to screen some less explored medicinal plants like
Ammania baccifera, Asclepias curassavica, Azadarichta indica, Butea monosperma, Croton tiglium,
Hedera nepalensis, Jatropha curcas, Momordica charantia, Moringa oleifera, Psidium guajava, etc.
having potent anticancer activity with minimum cytotoxic value (IC50 >3μM) and lesser or negligible
toxicity. They are rich in active phytochemicals with a wide range of drug targets. In this study, these
medicinal plants were evaluated for dose-dependent cytotoxicological studies via in vitro MTT assay
and in vivo tumor models along with some more plants which are reported to have IC50 value in the
range of 0.019-0.528 mg/ml. The findings indicate that these plants inhibit tumor growth by their antiproliferative,
pro-apoptotic, anti-metastatic and anti-angiogenic molecular targets. They are widely
used because of their easy availability, affordable price and having no or sometimes minimal side effects.
This review provides a baseline for the discovery of anticancer drugs from medicinal plants having
minimum cytotoxic value with minimal side effects and establishment of their analogues for the
welfare of mankind.
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Affiliation(s)
- Hina Qamar
- Department of Zoology, Chaudhary Charan Singh University, Meerut, India
| | - Sumbul Rehman
- Department of Ilmul Advia (Unani Pharmacology), A.K. Tibbiya College, Aligarh Muslim University, Aligarh, India
| | - D.K. Chauhan
- Department of Zoology, Chaudhary Charan Singh University, Meerut, India
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Warashina T, Miyase T. New 8,12;8,20-diepoxy-8,14-secopregnane hexa- and hepta-glycosides from the roots of Asclepias tuberosa. J Nat Med 2017; 72:347-356. [PMID: 29177792 DOI: 10.1007/s11418-017-1155-9] [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: 09/29/2017] [Accepted: 11/12/2017] [Indexed: 11/26/2022]
Abstract
Previously, phytochemical investigation of the roots of Asclepias tuberosa (Asclepiadaceae) led to the isolation of some 8,12;8,20-diepoxy-8,14-secopregnane tri-, tetra-, and penta-glycosides. An additional eight new minor 8,12;8,20-diepoxy-8,14-secopregnane glycosides were afforded in the recent investigation of this plant. These glycosides consisted of six or seven 2,6-dideoxy-hexopyranoses together with the aglycone, tuberogenin. The structures of each of these compounds were established using NMR, mass spectroscopic analysis and chemical evidence. As 8,12;8,20-diepoxy-8,14-secopregnane-type glycosides were observed only in A. tuberosa, these compounds were considered to be characteristic phytochemicals of this plant.
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Affiliation(s)
- Tsutomu Warashina
- School of Food and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan.
| | - Toshio Miyase
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
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Qian X, Li B, Li P, Wang D, Dai W, Zhang M. C 21 steroidal glycosides from Cynanchum auriculatum and their neuroprotective effects against H 2O 2-induced damage in PC12 cells. PHYTOCHEMISTRY 2017; 140:1-15. [PMID: 28437621 DOI: 10.1016/j.phytochem.2017.04.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 04/13/2017] [Accepted: 04/18/2017] [Indexed: 06/07/2023]
Abstract
Twenty-three undescribed previously C21 steroidal glycosides, named saccatols D-K and cynsaccatols I-W, together with six known analogs were isolated from the roots of Cynanchum auriculatum Royle ex Wight (Apocynaceae). Their structures were elucidated by a variety of spectroscopic techniques, as well as HRESIMS and GC method. All isolated compounds were tested their neuroprotective effects on the model of H2O2-induced damage to PC12 cells. Except saccatols D-F, J, cynsaccatol V and wilfoside A, other twenty-three isolates produced significantly activities against H2O2-induced cell damage (P < 0.001). Furthermore, cynsaccatols I, N, O and S can obvious inhibition of damaged PC12 cell apoptosis at their dosages of 1 μM by Annexin V-FITC/PI double staining assay with flow cytometry.
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Affiliation(s)
- Xicheng Qian
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Baocai Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Peng Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China
| | - Dong Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Weifeng Dai
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Mi Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China.
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Ma LF, Miao CT, Qian HY, Wang PF, Wang FS, Zhan ZJ, Shan WG. New C21 Steroidal Glycosides, Cynotophyllosides M–O, from Cynanchum Otophyllum. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x14894997017414] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cynotophyllosides M–O, three new polyhydroxypregnane glycosides, were obtained from the roots of Cynanchum otophyllum, together with four known compounds, deacetylmetaplexignin, sarcostion, cynotophylloside J and kidjoranin 3-O-α-diginopyranosyl-(1→4)-β-cymaropyranoside. Their structures were elucidated using extensive spectroscopic methods (in particular, 2D-NMR techniques) and acid-catalysed hydrolysis.
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Affiliation(s)
- Lie-Feng Ma
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Cun-Tan Miao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Hao-Ying Qian
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Peng-Fei Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Fa-Song Wang
- Key Laboratory of Biologic Resources Protection and Utilization of Hubei Province and College of Chemistry and Environmental Engineering, Hubei University for Nationalities, Enshi 445000, P.R. China
| | - Zha-Jun Zhan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Wei-Guang Shan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P.R. China
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García VP. Acid epimerization of 20-keto pregnane glycosides is determined by 2D-NMR spectroscopy. JOURNAL OF BIOMOLECULAR NMR 2011; 50:91-7. [PMID: 21431831 PMCID: PMC3085064 DOI: 10.1007/s10858-011-9499-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2010] [Accepted: 02/22/2011] [Indexed: 05/03/2023]
Abstract
Carbohydrates influence many essential biological events such as apoptosis, differentiation, tumor metastasis, cancer, neurobiology, immunology, development, host-pathogen interactions, diabetes, signal transduction, protein folding, and many other contexts. We now report on the structure determination of pregnane glycosides isolated from the aerial parts of Ceropegia fusca Bolle (Asclepiadaceae). The observation of cicatrizant, vulnerary and cytostatic activities in some humans and animals of Ceropegia fusca Bolle, a species endemic to the Canary Islands, encouraged us to begin a pharmacological study to determine their exact therapeutic properties. High resolution (1)H-NMR spectra of pregnane glycosides very often display well-resolved signals that can be used as starting points in several selective NMR experiments to study scalar (J coupling), and dipolar (NOE) interactions. ROESY is especially suited for molecules such that ωτ(c) ~ 1, where τ(c) are the motional correlation times and ω is the angular frequency. In these cases the NOE is nearly zero, while the rotating-frame Overhauser effect spectroscopy (ROESY) is always positive and increases monotonically for increasing values of τ(c). The ROESY shows dipolar interactions cross peaks even in medium-sized molecules which are helpful in unambiguous assignment of all the interglycosidic linkages. Selective excitation was carried out using a double pulsed-field gradient spin-echo sequence (DPFGSE) in which 180° Gaussian pulses are sandwiched between sine shaped z-gradients. Scalar interactions were studied by homonuclear DPFGSE-COSY and DPFGSE-TOCSY experiments, while DPFGSE-ROESY was used to monitor the spatial environment of the selectively excited proton. Dipolar interactions between nuclei close in space can be detected by the 1D GROESY experiment, which is a one-dimensional counterpart of the 2D ROESY method. The C-12 and C-17 configurations were determined by ROESY experiments.
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Affiliation(s)
- Víctor P García
- Departamento de Química de Productos Naturales y Biotecnología, Instituto de Productos Naturales de Canarias, La Laguna, Tenerife, Canary Islands.
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Warashina T, Noro T. 8,12;8,20-Diepoxy-8,14-secopregnane Glycosides from the Aerial Parts of Asclepias tuberosa. Chem Pharm Bull (Tokyo) 2010; 58:172-9. [DOI: 10.1248/cpb.58.172] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Tadataka Noro
- Institute for Environmental Sciences, University of Shizuoka
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Warashina T, Noro T. 8,14-Secopregnane glycosides from the aerial parts of Asclepias tuberosa. PHYTOCHEMISTRY 2009; 70:1294-1304. [PMID: 19703695 DOI: 10.1016/j.phytochem.2009.07.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2009] [Revised: 05/11/2009] [Accepted: 07/28/2009] [Indexed: 05/28/2023]
Abstract
Twenty pregnane glycosides, tuberoside A(1)-L(5), were isolated from the diethyl ether-soluble fraction of the MeOH extract from the aerial parts of Asclepias tuberosa (Asclepiadaceae). The pregnane glycosides were composed of 8,12;8,20-diepoxy-8,14-secopregnane as aglycon, and D-cymarose, D-oleandrose, D-digitoxose and/or D-glucose as the component sugars. Their structures were established using NMR spectroscopic analysis and chemical methodologies.
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Affiliation(s)
- Tsutomu Warashina
- Institute for Environmental Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
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Li JZ, Qing C, Chen CX, Hao XJ, Liu HY. Cytotoxicity of cardenolides and cardenolide glycosides from Asclepias curassavica. Bioorg Med Chem Lett 2009; 19:1956-9. [DOI: 10.1016/j.bmcl.2009.02.045] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2009] [Revised: 02/10/2009] [Accepted: 02/11/2009] [Indexed: 11/16/2022]
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Warashina T, Noro T. Acylated-Oxypregnane Glycosides from the Roots of Asclepias syriaca. Chem Pharm Bull (Tokyo) 2009; 57:177-84. [DOI: 10.1248/cpb.57.177] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Tadataka Noro
- Institute for Environmental Sciences, University of Shizuoka
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Warashina T, Shikata K, Miyase T, Fujii S, Noro T. New Cardenolide and Acylated Lignan Glycosides from the Aerial Parts of Asclepias curassavica. Chem Pharm Bull (Tokyo) 2008; 56:1159-63. [DOI: 10.1248/cpb.56.1159] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Kimiko Shikata
- School of Pharmaceutical Sciences, University of Shizuoka
| | - Toshio Miyase
- School of Pharmaceutical Sciences, University of Shizuoka
| | - Satoshi Fujii
- School of Pharmaceutical Sciences, University of Shizuoka
| | - Tadataka Noro
- Institute for Environmental Sciences, University of Shizuoka
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