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Anticancer Secondary Metabolites: From Ethnopharmacology and Identification in Native Complexes to Biotechnological Studies in Species of Genus Astragalus L. and Gloriosa L. Curr Issues Mol Biol 2022; 44:3884-3904. [PMID: 36135179 PMCID: PMC9498292 DOI: 10.3390/cimb44090267] [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: 06/27/2022] [Revised: 07/21/2022] [Accepted: 08/21/2022] [Indexed: 11/24/2022] Open
Abstract
Some of the most effective anticancer compounds are still derived from plants since the chemical synthesis of chiral molecules is not economically efficient. Rapid discovery of lead compounds with pronounced biological activity is essential for the successful development of novel drug candidates. This work aims to present the chemical diversity of antitumor bioactive compounds and biotechnological approaches as alternative production and sustainable plant biodiversity conservation. Astragalus spp., (Fabaceae) and Gloriosa spp. (Liliaceae) are selected as research objects within this review because they are known for their anticancer activity, because they represent two of the largest families respectively in dicots and monocots, and also because many of the medicinally important plants are rare and endangered. We summarized the ethnobotanical data concerning their anticancer application, highlighted the diversity of their secondary metabolites possessing anticancer properties such as saponins, flavonoids, and alkaloids, and revealed the potential of the in vitro cultures as an alternative way of their production. Since the natural supply is limited, it is important to explore the possibility of employing plant cell or organ in vitro cultures for the biotechnological production of these compounds as an alternative.
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Georgieva A, Popov G, Shkondrov A, Toshkova R, Krasteva I, Kondeva-Burdina M, Manov V. Antiproliferative and antitumour activity of saponins from Astragalus glycyphyllos on myeloid Graffi tumour. JOURNAL OF ETHNOPHARMACOLOGY 2021; 267:113519. [PMID: 33137432 DOI: 10.1016/j.jep.2020.113519] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Astragalus glycyphyllos L. has been extensively used in Bulgarian folk medicine as an antihypertensive, diuretic, anti-inflammatory, anti-tumour, in cases of cardiac insufficiency, renal inflammation, calculosis, etc. AIM OF THE STUDY: To evaluate the possible in vitro/in vivo anti-proliferative/anti-tumour activity of a purified saponins' mixture (PSM) obtained from the plant. MATERIALS AND METHODS Viability and proliferative activity of the Graffi myeloid tumour cells was assessed by MTT test. The morphological alterations were visualized and analysed by fluorescent microscopy after intravital double staining. An in vivo model of Graffi tumour bearing hamsters was used to examine the influence of PSM on transplantability, tumour growth, survival and mortality as well as to observe pathomorphological changes. RESULTS Graffi tumour cells were sensitive to purified saponins' mixture after 24 and 48 h treatment. The treatment induced a statistically significant decrease of the viability/proliferation of the Graffi tumour cells. These effects were concentration- and time-dependent. Fluorescent microscopy studies showed that these antiproliferative effects were connected to the induction of apoptosis. The in vivo study showed the presence of a stromal component, single mononuclear cells in the stroma. Multiple incorrect mitotic figures were observed in the tumour tissue from the control group. Well-formed stroma with accumulation of mononuclear cells and mitotic cells were found in the group, treated with PSM. The tumour weight was decreased in the group, treated with PMS. CONCLUSION The results indicate that PSM exhibited in vitro/in vivo antiproliferative/anti-tumour effects.
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Affiliation(s)
- Ani Georgieva
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Bl. 25, 1113, Sofia, Bulgaria.
| | - Georgi Popov
- Department of Internal Non-communicable Diseases, Pathology and Pharmacology, Faculty of Veterinary Medicine, University of Forestry, 10 St. Kliment Ohridski Blvd., 1797, Sofia, Bulgaria.
| | - Aleksandar Shkondrov
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., 1000, Sofia, Bulgaria.
| | - Reneta Toshkova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Bl. 25, 1113, Sofia, Bulgaria.
| | - Ilina Krasteva
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., 1000, Sofia, Bulgaria.
| | - Magdalena Kondeva-Burdina
- Laboratory of Drug Metabolism and Drug Toxicity, Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., 1000, Sofia, Bulgaria.
| | - Vasil Manov
- Department of Internal Non-communicable Diseases, Pathology and Pharmacology, Faculty of Veterinary Medicine, University of Forestry, 10 St. Kliment Ohridski Blvd., 1797, Sofia, Bulgaria.
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Shkondrov A, Krasteva I. Liquid chromatography – high resolution mass spectrometry screening of Astragalus hamosus and Astragalus corniculatus. PHARMACIA 2021. [DOI: 10.3897/pharmacia.68.e60621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Astragalus hamosus and Astragalus corniculatus were examined for the presence of flavoalkaloids, acylated and highly glycosylated flavonoids. Non-purified extracts of the overground parts of the species were subjected to ultra-high performance liquid chromatography – high resolution electrospray ionisation mass spectrometry (UHPLC-HRESIMS) analysis and the results were compared to authentic reference substances. A flavoalkaloid of kaempferol was newly identified in an extract of A. hamosus. In addition, three compounds – quercetin and kaempferol flavonoids, acylated with hydroxymethylglutaric acid and alcesefoliside, were found in extracts of A. hamosus and A. corniculatus for the first time.
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Mihaylova R, Shkondrov A, Aluani D, Ionkova I, Tzankova V, Krasteva I. In vitro antitumour and immunomodulating activity of saponins from Astragalus glycyphyllos. BIOTECHNOL BIOTEC EQ 2021. [DOI: 10.1080/13102818.2022.2041485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Rositsa Mihaylova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Aleksandar Shkondrov
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Denitsa Aluani
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Iliana Ionkova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Virginia Tzankova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Ilina Krasteva
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
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Al Sharif M, Alov P, Diukendjieva A, Vitcheva V, Simeonova R, Krasteva I, Shkondrov A, Tsakovska I, Pajeva I. Molecular determinants of PPARγ partial agonism and related in silico/in vivo studies of natural saponins as potential type 2 diabetes modulators. Food Chem Toxicol 2017; 112:47-59. [PMID: 29247773 DOI: 10.1016/j.fct.2017.12.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 12/04/2017] [Accepted: 12/07/2017] [Indexed: 12/29/2022]
Abstract
The metabolic syndrome, which includes hypertension, type 2 diabetes (T2D) and obesity, has reached an epidemic-like scale. Saponins and sapogenins are considered as valuable natural products for ameliorating this pathology, possibly through the nuclear receptor PPARγ activation. The aims of this study were: to look for in vivo antidiabetic effects of a purified saponins' mixture (PSM) from Astragalus corniculatus Bieb; to reveal by in silico methods the molecular determinants of PPARγ partial agonism, and to investigate the potential PPARγ participation in the PSM effects. In the in vivo experiments spontaneously hypertensive rats (SHRs) with induced T2D were treated with PSM or pioglitazone as a referent PPARγ full agonist, and pathology-relevant biochemical markers were analysed. The results provided details on the PSM modulation of the glucose homeostasis and its potential mechanism. The in silico studies focused on analysis of the protein-ligand interactions in crystal structures of human PPARγ-partial agonist complexes, pharmacophore modelling and molecular docking. They outlined key pharmacophoric features, typical for the PPARγ partial agonists, which were used for pharmacophore-based docking of the main PSM sapogenin. The in silico studies, strongly suggest possible involvement of PPARγ-mediated mechanisms in the in vivo antidiabetic and antioxidant effects of PSM from A. corniculatus.
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Affiliation(s)
- Merilin Al Sharif
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 105, 1113 Sofia, Bulgaria.
| | - Petko Alov
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 105, 1113 Sofia, Bulgaria.
| | - Antonia Diukendjieva
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 105, 1113 Sofia, Bulgaria.
| | - Vessela Vitcheva
- Faculty of Pharmacy, Medical University of Sofia, Dunav 2 Str., 1000 Sofia, Bulgaria.
| | - Rumyana Simeonova
- Faculty of Pharmacy, Medical University of Sofia, Dunav 2 Str., 1000 Sofia, Bulgaria.
| | - Ilina Krasteva
- Faculty of Pharmacy, Medical University of Sofia, Dunav 2 Str., 1000 Sofia, Bulgaria.
| | - Aleksandar Shkondrov
- Faculty of Pharmacy, Medical University of Sofia, Dunav 2 Str., 1000 Sofia, Bulgaria.
| | - Ivanka Tsakovska
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 105, 1113 Sofia, Bulgaria.
| | - Ilza Pajeva
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 105, 1113 Sofia, Bulgaria.
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Yang LP, Shen JG, Xu WC, Li J, Jiang JQ. Secondary Metabolites of the GenusAstragalus:Structure and Biological-Activity Update. Chem Biodivers 2013; 10:1004-54. [DOI: 10.1002/cbdv.201100444] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Indexed: 01/22/2023]
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Antitumor activity of quaternized chitosan-based electrospun implants against Graffi myeloid tumor. Int J Pharm 2010; 400:221-33. [DOI: 10.1016/j.ijpharm.2010.08.039] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Revised: 08/12/2010] [Accepted: 08/25/2010] [Indexed: 11/18/2022]
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