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Bailly C. A systematic review of spirostanol saponins and anticancer natural products isolated from Tacca plantaginea (Hance) Drenth. PHYTOCHEMISTRY 2024; 228:114252. [PMID: 39173698 DOI: 10.1016/j.phytochem.2024.114252] [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: 02/26/2024] [Revised: 08/12/2024] [Accepted: 08/14/2024] [Indexed: 08/24/2024]
Abstract
The plant genus Tacca comprises twenty species including Tacca plantaginea, essentially distributed in the Indo-China region. Medicinal preparations from the rhizomes are used traditionally to treat gastrointestinal ailments, stomach aches and inflammatory disorders. A variety of bioactive molecules have been isolated from T. plantaginea, including potent anticancer steroids such as the taccanolides which interfere with microtubules dynamic. Other efficient anticancer natural products have been isolated from the plant, in particular a series of diosgenin/yamogenin-type sapogenins including taccaoside (monodesmosidic) and taccaoside A (bidesmosidic). Taccaoside A displays marked anticancer properties through two complementary mechanisms: a direct action on cancer stem cells via HRas and Pi3K/Akt signaling and an indirect immunomodulatory action via activation of cytotoxic T cells. A similar mechanism of action has been invoked with a total saponin extract from Schizocapsa plantaginea Hance (synonym to T. plantaginea) and the saponin SSPH 1. This saponin reduced tumor growth in mice through stimulation of cytotoxic T lymphocytes. Other bioactive products have been isolated from T. plantaginea, including withanolide-type steroids (plantagiolides, chantriolides), diarylheptanoids (plantagineosides) and different saponins (diosbulbisides, lieguonins). The discussion centers around the mechanism of action of spirostanol saponins, with the objective to promote their study as immuno-active anticancer agents.
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Affiliation(s)
- Christian Bailly
- University of Lille, CNRS, Inserm, CHU Lille, UMR9020 - UMR1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, 59000, Lille, France; University of Lille, Faculty of Pharmacy, Institut de Chimie Pharmaceutique Albert Lespagnol (ICPAL), 3 rue du Professeur Laguesse, 59000, Lille, France; OncoWitan, Consulting Scientific Office, Lille, (Wasquehal), 59290, France.
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Kumar S, Mathew SO, Aharwal RP, Tulli HS, Mohan CD, Sethi G, Ahn KS, Webber K, Sandhu SS, Bishayee A. Withaferin A: A Pleiotropic Anticancer Agent from the Indian Medicinal Plant Withania somnifera (L.) Dunal. Pharmaceuticals (Basel) 2023; 16:160. [PMID: 37259311 PMCID: PMC9966696 DOI: 10.3390/ph16020160] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 08/04/2023] Open
Abstract
Cancer represents the second most deadly disease and one of the most important public health concerns worldwide. Surgery, chemotherapy, radiation therapy, and immune therapy are the major types of treatment strategies that have been implemented in cancer treatment. Unfortunately, these treatment options suffer from major limitations, such as drug-resistance and adverse effects, which may eventually result in disease recurrence. Many phytochemicals have been investigated for their antitumor efficacy in preclinical models and clinical studies to discover newer therapeutic agents with fewer adverse effects. Withaferin A, a natural bioactive molecule isolated from the Indian medicinal plant Withania somnifera (L.) Dunal, has been reported to impart anticancer activities against various cancer cell lines and preclinical cancer models by modulating the expression and activity of different oncogenic proteins. In this article, we have comprehensively discussed the biosynthesis of withaferin A as well as its antineoplastic activities and mode-of-action in in vitro and in vivo settings. We have also reviewed the effect of withaferin A on the expression of miRNAs, its combinational effect with other cytotoxic agents, withaferin A-based formulations, safety and toxicity profiles, and its clinical potential.
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Affiliation(s)
- Suneel Kumar
- Bio-Design Innovation Centre, Rani Durgavati University, Jabalpur 482 001, India
| | - Stephen O. Mathew
- Department of Microbiology, Immunology, and Genetics, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | | | - Hardeep Singh Tulli
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala 133 207, India
| | | | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
| | - Kwang-Seok Ahn
- Department of Science in Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Kassidy Webber
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA
| | - Sardul Singh Sandhu
- Bio-Design Innovation Centre, Rani Durgavati University, Jabalpur 482 001, India
| | - Anupam Bishayee
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA
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Chantriolides F-P, Highly Oxidized Withanolides with Hepatoprotective Activity from Tacca chantrieri. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238197. [PMID: 36500291 PMCID: PMC9739516 DOI: 10.3390/molecules27238197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022]
Abstract
Eleven highly oxidized withanolides, chantriolides F-P (1-11), together with six known analogues (12-17), were isolated from the rhizomes of Tacca chantrieri. Their structures were established on the basis of comprehensive spectroscopic data analysis and comparison with published NMR data, and their absolute configurations were further confirmed by experimental ECD data and single crystal X-ray diffraction analysis. The structures of compounds 5-8 contained a chlorine atom substituted at C-3. Compounds 1 and 12 are a pair of epimers isomerized at C-24 and C-25, while compounds 9 and 16 are isomerized at C-1, C-7, C-24, and C-25. Next, the hepatoprotective effect of all the isolates was evaluated on tert-butyl hydroperoxide (t-BHP)-injured AML12 hepatocytes. Compounds 5-11 and 16 significantly enhanced cell viability. Compound 8 decreased reactive oxygen species accumulation and increased glutathione level in t-BHP injured AML12 hepatocytes through promoting nuclear translocation of nuclear factor erythroid 2-related factor 2 (Nrf2).
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Li Y, Du YF, Gao F, Xu JB, Zheng LL, Liu G, Lei Y. Taccalonolides: Structure, semi-synthesis, and biological activity. Front Pharmacol 2022; 13:968061. [PMID: 36034793 PMCID: PMC9407980 DOI: 10.3389/fphar.2022.968061] [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: 06/13/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
Microtubules are the fundamental part of the cell cytoskeleton intimately involving in cell proliferation and are superb targets in clinical cancer therapy today. Microtubule stabilizers have become one of the effectively main agents in the last decades for the treatment of diverse cancers. Taccalonolides, the highly oxygenated pentacyclic steroids isolated from the genus of Tacca, are considered a class of novel microtubule-stabilizing agents. Taccalonolides not only possess a similar microtubule-stabilizing activity as the famous drug paclitaxel but also reverse the multi-drug resistance of paclitaxel and epothilone in cellular and animal models. Taccalonolides have captured numerous attention in the field of medicinal chemistry due to their variety of structures, unique mechanism of action, and low toxicity. This review focuses on the structural diversity, semi-synthesis, modification, and pharmacological activities of taccalonolides, providing bright thoughts for the discovery of microtubule-stabilizing drugs.
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Affiliation(s)
- Yan Li
- Department of Pharmacy, The First Afflicted Hospital of Chengdu Medical College, Chengdu, China
| | - Yu-Feng Du
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Feng Gao
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Jin-Bu Xu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Ling-Li Zheng
- Department of Pharmacy, The First Afflicted Hospital of Chengdu Medical College, Chengdu, China
- *Correspondence: Ling-Li Zheng, ; Gang Liu, ; Yu Lei,
| | - Gang Liu
- Department of Pharmacy, The First Afflicted Hospital of Chengdu Medical College, Chengdu, China
- *Correspondence: Ling-Li Zheng, ; Gang Liu, ; Yu Lei,
| | - Yu Lei
- Department of Pharmacy, The First Afflicted Hospital of Chengdu Medical College, Chengdu, China
- *Correspondence: Ling-Li Zheng, ; Gang Liu, ; Yu Lei,
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Abstract
Covering: March 2010 to December 2020. Previous review: Nat. Prod. Rep., 2011, 28, 705This review summarizes the latest progress and perspectives on the structural classification, biological activities and mechanisms, metabolism and pharmacokinetic investigations, biosynthesis, chemical synthesis and structural modifications, as well as future research directions of the promising natural withanolides. The literature from March 2010 to December 2020 is reviewed, and 287 references are cited.
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Affiliation(s)
- Gui-Yang Xia
- School of Chinese Materia Medica, State Key Laboratory of Component-Based Chinese Medicine, Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin, 301617, China. .,Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Shi-Jie Cao
- School of Chinese Materia Medica, State Key Laboratory of Component-Based Chinese Medicine, Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin, 301617, China.
| | - Li-Xia Chen
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Feng Qiu
- School of Chinese Materia Medica, State Key Laboratory of Component-Based Chinese Medicine, Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin, 301617, China.
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He J, Ma R, Li ZH, Feng T, Liu JK. Taccachatrones A-G, Highly Oxidized Steroids from the Rhizomes of Tacca chantrierii and Their Cytotoxicity Assessment. JOURNAL OF NATURAL PRODUCTS 2021; 84:2265-2271. [PMID: 34355562 DOI: 10.1021/acs.jnatprod.1c00342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Seven highly oxidized steroids, taccachatrones A-G (1-7), together with four known taccalonolides (8-11), were characterized from the rhizomes of Tacca chantrieri. The structures of 1-7 were established on the basis of spectroscopic data analysis, while the absolute configurations were determined by single-crystal X-ray diffraction. Compounds 1-4 may be derived from taccalonolide derivatives by the degradation of three carbon atoms. Compounds 7, 8, 10, and 11 exhibited cytotoxicity to human cancer cell lines, indicating that the presence of a lactone moiety, as well as a double bond between C-22 and C-23, might play key roles in mediating their cytotoxicity.
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Affiliation(s)
- Juan He
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, People's Republic of China
- National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, People's Republic of China
| | - Rui Ma
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, People's Republic of China
| | - Zheng-Hui Li
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, People's Republic of China
- National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, People's Republic of China
| | - Tao Feng
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, People's Republic of China
- National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, People's Republic of China
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, People's Republic of China
- National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, People's Republic of China
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Taccalonolides: A Novel Class of Microtubule-Stabilizing Anticancer Agents. Cancers (Basel) 2021; 13:cancers13040920. [PMID: 33671665 PMCID: PMC7926778 DOI: 10.3390/cancers13040920] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 02/17/2021] [Accepted: 02/19/2021] [Indexed: 01/24/2023] Open
Abstract
Simple Summary Natural products have continued to play an important role in new drug discovery with a considerable number of marketed drugs being derived from naturally occurring compounds, particularly in the area of cancer. Taccalonolides are a new class of microtube-stabilizing agents isolated from plants of the genus Tacca demonstrating effectiveness against drug-resistant tumors in cellular and animal models. This review article highlights the discovery history of taccalonolides and their microtubule-stabilizing activities, which summarizes the naturally derived and semi-synthesized structures that have been reported so far and the advances on the mechanism of action of taccalonolides. Abstract Microtubule stabilizing agents, such as paclitaxel, docetaxel, and cabazitaxel have been among the most used chemotherapeutic agents in the last decades for the treatment of a wide range of cancers in the clinic. One of the concerns that limit their use in clinical practice is their intrinsic and acquired drug resistance, which is common to most anti-cancer chemotherapeutics. Taccalonolides are a new class of microtubule stabilizers isolated from the roots of a few species in the genus of Tacca. In early studies, taccalonolides demonstrated different effects on interphase and mitotic microtubules from those of paclitaxel and laulimalide suggesting a unique mechanism of action. This prompts the exploration of new taccalonolides with various functionalities through the identification of minor constituents of natural origin and semi-synthesis. The experiments on the new highly potent taccalonolides indicated that taccalonolides possessed a unique mechanism of covalently binding to the microtubule. An X-ray diffraction analysis of a crystal of taccalonolides AJ binding to tubulin indicated that the covalent binding site is at β-tubulin D226. Taccalonolides circumvent all three mechanisms of taxane drug resistance both in vitro and in vivo. To improve the activity, the structure modification through semi-synthesis was conducted and the structure-activity relationships (SARs) was analyzed based on natural and semi-synthetical taccalonolides. The C22–C23 epoxide can significantly increase the antiproliferation potency of taccalonolides due to the covalent link of C22 and the carboxylic group of D226. Great progress has been seen in the last few years in the understanding of the mechanism of this class of microtube-stabilizing agents. This review summarizes the structure diversity, structure-activity relationships (SARs), mechanism of action, and in vivo activities of taccalonolides.
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Yang Y, Gong Q, Wang W, Mao YL, Wang XR, Yao S, Zhang HY, Tang C, Ye Y. Neuroprotective and Anti-inflammatory Ditetrahydrofuran-Containing Diarylheptanoids from Tacca chantrieri. JOURNAL OF NATURAL PRODUCTS 2020; 83:3681-3688. [PMID: 33253561 DOI: 10.1021/acs.jnatprod.0c00901] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Three new dimeric diarylheptanoids, taccachanfurans A-C (1-3), a new monomeric diarylheptanoid, taccachannoid A (4), and four known diarylheptanoids (5-8) were isolated from the EtOH extract of the rhizomes of Tacca chantrieri. Their structures were established on the basis of comprehensive spectroscopic data analysis. The absolute configuration of taccachanfuran A (1) was confirmed by single-crystal X-ray diffraction. All the diarylheptanoid dimers contain a ditetrahydrofuran moiety, which has not been described previously for diarylheptanoid compounds. A plausible biosynthetic pathway for the diarylheptanoid dimers is proposed. Compounds 2-4 showed significant neuroprotective activity against Aβ25-35-induced damage in SH-SY5Y cells at the concentrations of 10 and 1 μM. Compounds 3, 4, 6, 7, and 8 showed anti-inflammatory activity in LPS-stimulated murine microglial BV-2 cells at the concentrations of 10 and 1 μM.
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Affiliation(s)
- Yue Yang
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China
| | - Qi Gong
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Wei Wang
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Ying-Le Mao
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Xiao-Rong Wang
- Xishuangbanna Research Institute of Nationality Medicine, & Xishuangbanna Hospital of Traditional Dai Medicine, No. 8, Zhuangdong Western Road of Xishuangbanna Tourism and Resort Zone, Xishuangbanna Dai Autonomous Prefecture of Yunnan Province 666100, People's Republic of China
| | - Sheng Yao
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Hai-Yan Zhang
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Chunping Tang
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Yang Ye
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201203, People's Republic of China
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YANG GX, MA GL, LI H, HUANG T, XIONG J, HU JF. Advanced natural products chemistry research in China between 2015 and 2017. Chin J Nat Med 2018; 16:881-906. [DOI: 10.1016/s1875-5364(18)30131-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Indexed: 10/27/2022]
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Simoben CV, Ntie-Kang F, Akone SH, Sippl W. Compounds from African Medicinal Plants with Activities Against Selected Parasitic Diseases: Schistosomiasis, Trypanosomiasis and Leishmaniasis. NATURAL PRODUCTS AND BIOPROSPECTING 2018; 8:151-169. [PMID: 29744736 PMCID: PMC5971035 DOI: 10.1007/s13659-018-0165-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 04/26/2018] [Indexed: 05/10/2023]
Abstract
Parasitic diseases continue to represent a threat on a global scale, particularly among the poorest countries in the world. This is particularly because of the absence of vaccines, and in some cases, resistance against available drugs, currently being used for their treatment. In this review emphasis is laid on natural products and scaffolds from African medicinal plants (AMPs) for lead drug discovery and possible further development of drugs for the treatment of parasitic diseases. In the discussion, emphasis has been laid on alkaloids, terpenoids, quinones, flavonoids and narrower compound classes of compounds with micromolar range activities against Schistosoma, Trypanosoma and Leishmania species. In each subparagraph, emphasis is laid on the compound subclasses with most promising in vitro and/or in vivo activities of plant extracts and isolated compounds. Suggestions for future drug development from African medicinal plants have also been provided. This review covering 167 references, including 82 compounds, provides information published within two decades (1997-2017).
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Affiliation(s)
- Conrad V Simoben
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle (Saale), Germany
| | - Fidele Ntie-Kang
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle (Saale), Germany.
- Department of Chemistry, Faculty of Science, University of Buea, P.O. Box 63, Buea, 00237, Cameroon.
| | - Sergi H Akone
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University, Universitaetsstrasse1, Geb. 26.23, Duesseldorf, 40225, Germany
- Department of Chemistry, Faculty of Science, University of Douala, PO Box 24157, Douala, 00237, Cameroon
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle (Saale), Germany
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Maher S, Rasool S, Mehmood R, Perveen S, Tareen RB. Eburneolins A and B, new withanolide glucosides from Tricholepis eburnea. Nat Prod Res 2016; 30:2413-20. [PMID: 27320104 DOI: 10.1080/14786419.2016.1195377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Eburneolins A (1) and B (2), new withanolide glucosides, have been isolated from the n-butanolic fraction of the 75% methanolic extract of aerial parts of Tricholepis eburnea. Their structures were elucidated through spectroscopic analysis including ESI-MS, 2D NMR and acid hydrolysis.
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Affiliation(s)
- Saima Maher
- a International center for Chemical and Biological Sciences, H. E. J. Research Institute of Chemistry , University of Karachi , Karachi , Pakistan
| | - Shagufta Rasool
- a International center for Chemical and Biological Sciences, H. E. J. Research Institute of Chemistry , University of Karachi , Karachi , Pakistan
| | - Rashad Mehmood
- b Department of Chemistry , Hazara University , Mansehra , Pakistan
| | - Shagufta Perveen
- c Department of Pharmacognosy, College of Pharmacy , King Saud University , Riyadh , Saudi Arabia
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Dike VT, Vihiior B, Bosha JA, Yin TM, Ebiloma GU, de Koning HP, Igoli JO, Gray AI. Antitrypanosomal Activity of a Novel Taccalonolide from the Tubers of Tacca leontopetaloides. PHYTOCHEMICAL ANALYSIS : PCA 2016; 27:217-221. [PMID: 27313159 DOI: 10.1002/pca.2619] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 03/11/2016] [Accepted: 03/14/2016] [Indexed: 06/06/2023]
Abstract
INTRODUCTION Several taccalonolides with various bioactivities have been isolated from Tacca species but no studies to isolate taccalonolides with anti-trypanosomal activity from Tacca leontopetaloides have been reported. OBJECTIVES To analyse extracts of the roots of Tacca leontopetaloides, purify the extracts by column chromatography and identify isolated compounds by spectroscopic methods. The compounds and fractions will be tested for antitrypanosomal activity in vitro against Trypanosoma brucei brucei. MATERIAL AND METHODS Dried roots or tubers of Tacca leontopetaloides, chromatographic separation and spectroscopic identification. RESULTS A novel taccalonolide A propanoate and some known taccalonolides were isolated and their structures were determined by NMR and mass spectrometry CONCLUSION Several taccalonolides were isolated from Tacca leontopetaloides and were found to have in vitro antitrypanosomal activity against Trypanosoma brucei brucei and EC50 values for the isolated compounds were from 0.79 µg/mL. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Vivian T Dike
- Phytochemistry Research Group, Department of Chemistry, University of Agriculture PMB 2373, Makurdi, Benue State, Nigeria
| | - Burbwa Vihiior
- Phytochemistry Research Group, Department of Chemistry, University of Agriculture PMB 2373, Makurdi, Benue State, Nigeria
| | - Joel A Bosha
- Department of Veterinary Physiology, Pharmacology and Biochemistry, University of Agriculture, PMB 2373, Makurdi, Benue State, Nigeria
| | - Tung Mei Yin
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 27 Taylor Street, Glasgow, G4 0NR, UK
| | - Godwin Unekwuojo Ebiloma
- Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - Harry P de Koning
- Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - John O Igoli
- Phytochemistry Research Group, Department of Chemistry, University of Agriculture PMB 2373, Makurdi, Benue State, Nigeria
| | - Alexander I Gray
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 27 Taylor Street, Glasgow, G4 0NR, UK
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Abstract
Plant-based Ayurvedic medicine has been practiced in India for thousands of years for the treatment of a variety of disorders. They are rich sources of bioactive compounds potentially useful for prevention and treatment of cancer. Withania somnifera (commonly known as Ashwagandha in Ayurvedic medicine) is a widely used medicinal plant whose anticancer value was recognized after isolation of steroidal compounds withanolides from the leaves of this shrub. Withaferin A is the first member of withanolides to be isolated, and it is the most abundant withanolide present in W. somnifera. Its cancer-protective role has now been established using chemically induced and oncogene-driven rodent cancer models. The present review summarizes the key preclinical studies demonstrating anticancer effects of withaferin along with its molecular targets and mechanisms related to its anticancer effects. Anticancer potential of other withanolides is also discussed.
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