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Long J, Ouyang JC, Luo YH, Wu QJ, Liao XT, Chen ZL, Wang QL, Liang XY, Liu L, Yang XM, Li XS. Three new cardenolides from the fruits of Cascabela thevetia (L.) Lippold and their cytotoxic activities. Nat Prod Res 2024; 38:211-219. [PMID: 35983797 DOI: 10.1080/14786419.2022.2113876] [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: 03/17/2022] [Revised: 08/08/2022] [Accepted: 08/12/2022] [Indexed: 10/15/2022]
Abstract
Phytochemical investigations on the fruits of Cascabela thevetia (L.) Lippold led to obtain three new cardenolides (1-3) and five known analogues (4-7). Their structures were elucidated by means of UV, IR, HR-ESI-MS, 1D and 2D NMR spectroscopic data analysis. Compounds 1 and 2 represent the first examples of naturally occurring cardenolides with 19-nor-5(10)-ene group and α-l-3-demethyl-thevetose, respectively. Compound 3 is a rare C-nor-D-homocardenolide in nature. All isolated cardenolides (1-7) were evaluated for their cytotoxic activities against four human cancer cell lines (MCF-7, HCT-116, HeLa and HepG2), and the results indicated the compounds with sugar units (1, 2, 4, and 5) exhibited stronger cytotoxic activities with IC50 values ranging between 0.022 and 0.308 μM.
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Affiliation(s)
- Juan Long
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, Key Laboratory of Research and Development of New Medical Materials of Guangdong Medical University, School of Pharmacy, Guangdong Medical University, Dongguan, P.R. China
| | - Jia-Cheng Ouyang
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, Key Laboratory of Research and Development of New Medical Materials of Guangdong Medical University, School of Pharmacy, Guangdong Medical University, Dongguan, P.R. China
| | - Yu-Hao Luo
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, Key Laboratory of Research and Development of New Medical Materials of Guangdong Medical University, School of Pharmacy, Guangdong Medical University, Dongguan, P.R. China
| | - Qi-Jing Wu
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, Key Laboratory of Research and Development of New Medical Materials of Guangdong Medical University, School of Pharmacy, Guangdong Medical University, Dongguan, P.R. China
| | - Xiao-Tong Liao
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, Key Laboratory of Research and Development of New Medical Materials of Guangdong Medical University, School of Pharmacy, Guangdong Medical University, Dongguan, P.R. China
| | - Zhi-Le Chen
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, Key Laboratory of Research and Development of New Medical Materials of Guangdong Medical University, School of Pharmacy, Guangdong Medical University, Dongguan, P.R. China
| | - Qi-Lin Wang
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, Key Laboratory of Research and Development of New Medical Materials of Guangdong Medical University, School of Pharmacy, Guangdong Medical University, Dongguan, P.R. China
| | - Xiao-Yan Liang
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, Key Laboratory of Research and Development of New Medical Materials of Guangdong Medical University, School of Pharmacy, Guangdong Medical University, Dongguan, P.R. China
- Marine Biomedical Research Institute, The Key Lab of Zhanjiang for R&D Marine Microbial Resources in the Beibu Gulf Rim, Guangdong Medical University, Zhanjiang, P.R. China
| | - Li Liu
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, Key Laboratory of Research and Development of New Medical Materials of Guangdong Medical University, School of Pharmacy, Guangdong Medical University, Dongguan, P.R. China
| | - Xue-Mei Yang
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, Key Laboratory of Research and Development of New Medical Materials of Guangdong Medical University, School of Pharmacy, Guangdong Medical University, Dongguan, P.R. China
| | - Xiao-San Li
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, Key Laboratory of Research and Development of New Medical Materials of Guangdong Medical University, School of Pharmacy, Guangdong Medical University, Dongguan, P.R. China
- Marine Biomedical Research Institute, The Key Lab of Zhanjiang for R&D Marine Microbial Resources in the Beibu Gulf Rim, Guangdong Medical University, Zhanjiang, P.R. China
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Chen T, Wang Q, Wang Q, La M, Li Y, He L, Zou D. Ab initio calculation based solvent system selection in silico for counter-current chromatography: separation of resibufogenin glycosylation products. J Chromatogr A 2022; 1686:463649. [DOI: 10.1016/j.chroma.2022.463649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 11/03/2022] [Accepted: 11/13/2022] [Indexed: 11/16/2022]
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Zou D, Wang Q, Chen T, Sang D, Yang T, Wang Y, Gao M, He F, Li Y, He L, Longzhu D. Bufadienolides originated from toad source and their anti-inflammatory activity. Front Pharmacol 2022; 13:1044027. [PMID: 36339575 PMCID: PMC9627299 DOI: 10.3389/fphar.2022.1044027] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 10/10/2022] [Indexed: 03/03/2024] Open
Abstract
Bufadienolide, an essential member of the C-24 steroid family, is characterized by an α-pyrone positioned at C-17. As the predominantly active constituent in traditional Chinese medicine of Chansu, bufadienolide has been prescribed in the treatment of numerous ailments. It is a specifically potent inhibitor of Na+/K+ ATPase with excellent anti-inflammatory activity. However, the severe side effects triggered by unbiased inhibition of the whole-body cells distributed α1-subtype of Na+/K+ ATPase, restrict its future applicability. Thus, researchers have paved the road for the structural alteration of desirable bufadienolide derivatives with minimal adverse effects via biotransformation. In this review, we give priority to the present evidence for structural diversity, MS fragmentation principles, anti-inflammatory efficacy, and structure modification of bufadienolides derived from toads to offer a scientific foundation for future in-depth investigations and views.
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Affiliation(s)
- Denglang Zou
- School of Life Science, Qinghai Normal University, Xining, China
- College of Pharmacy, Jinan University, Guangzhou, China
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Qiqi Wang
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Tao Chen
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Duocheng Sang
- School of Life Science, Qinghai Normal University, Xining, China
| | - Tingqin Yang
- School of Life Science, Qinghai Normal University, Xining, China
| | - Yuhan Wang
- School of Life Science, Qinghai Normal University, Xining, China
| | - Mengze Gao
- School of Life Science, Qinghai Normal University, Xining, China
| | - Fangfang He
- School of Life Science, Qinghai Normal University, Xining, China
| | - Yulin Li
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Liangliang He
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Duojie Longzhu
- School of Life Science, Qinghai Normal University, Xining, China
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Wang Q, Chen T, Cui Y, Li S, Jiang X, Zhao G, Li Y, Zou D. The applicability of pH-zone-refining counter-current chromatography for preparative separation of biosynthesis products: Glycosylation products as example. J Chromatogr A 2021; 1657:462582. [PMID: 34614468 DOI: 10.1016/j.chroma.2021.462582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/27/2021] [Accepted: 09/24/2021] [Indexed: 10/20/2022]
Abstract
Biosynthesis is a research hot-spot in recent years, however, the purification of its final products is a tough work. Liquid stationary phase and large-scale separation ability of PZRCCC could easily avoid the commonly disadvantages occurred in traditional column chromatography. These characteristics makes PZRCCC particularly applicable for final products separation in biosynthesis. In this study, the glycosylation products of ellagic acid by one-pot glycosylation were successfully purified by PZRCCC to show the applicability of PZRCCC for preparative separation of biosynthesis products. An optimized ethyl acetate/n-buthanol/water (3:3:5, v/v/v) system was applied in this study, where 5 mM trifluoroacetic acid (TFA) as the retainer and 30 mM triethylamine (TEA) as the eluter were added. As a result, four ellagic acid glycosylation products, including 51 mg of ellagic acid-4, 3'-O-β-D-diglucoside (EG-1), 24 mg of ellagic acid-4, 4'-O-β-D-diglucoside (EG-2), 11 mg of ellagic acid-4-O-β-D-glucosyl (1→2)-β-D-glucoside (EG-3) and 64 mg of ellagic acid-4-O-β-D-glucoside (EG-4) were simultaneously separated from 500 mg of glycosylation crude products, with the purity of 93.3%, 91.2%, 89.4% and 95.5%, respectively. Their structures were identified by spectroscopic analysis.
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Affiliation(s)
- Qiqi Wang
- College of Pharmacy, Jinan University, Guangzhou 510632, PR China
| | - Tao Chen
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, PR China
| | - Yunbin Cui
- Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of Qinghai-Tibetan Plateau in Qinghai Province, Academy of Plateau Science and Sustainability, School of Life Science, Qinghai Normal University, Xining 810000, PR China
| | - Si Li
- Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of Qinghai-Tibetan Plateau in Qinghai Province, Academy of Plateau Science and Sustainability, School of Life Science, Qinghai Normal University, Xining 810000, PR China
| | - Xinhao Jiang
- Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of Qinghai-Tibetan Plateau in Qinghai Province, Academy of Plateau Science and Sustainability, School of Life Science, Qinghai Normal University, Xining 810000, PR China
| | - Guodong Zhao
- Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of Qinghai-Tibetan Plateau in Qinghai Province, Academy of Plateau Science and Sustainability, School of Life Science, Qinghai Normal University, Xining 810000, PR China
| | - Yulin Li
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, PR China.
| | - Denglang Zou
- Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of Qinghai-Tibetan Plateau in Qinghai Province, Academy of Plateau Science and Sustainability, School of Life Science, Qinghai Normal University, Xining 810000, PR China.
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Zou D, Cui Y, Li S, Sang D, Liu W, Zhao T, Gu X, Chen T, Li Y. The applicability of high-speed counter-current chromatography for preparative separation of biosynthesis products: Glycosylation products as example. J Sep Sci 2021; 44:4368-4375. [PMID: 34687498 DOI: 10.1002/jssc.202100544] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 09/22/2021] [Accepted: 10/15/2021] [Indexed: 11/08/2022]
Abstract
Biosynthesis is a promising way to manufacture desired products, however, the purification of its final products is a tough work due to the huge amount of reaction matrix. Liquid stationary phase of high-speed counter-current chromatography could easily avoid the commonly disadvantages that occurred in traditional column chromatography in the field of biosynthesized products purification. This characteristic makes high-speed counter-current chromatography particularly applicable for final products separation in biosynthesis. In this study, the glycosylation products of Silybin B by one-pot glycosylation were successfully purified by high-speed counter-current chromatography to show the applicability of high-speed counter-current chromatography for preparative separation of biosynthesis products. An optimized n-hexane/ethyl acetate/methanol/water (2:5:2:3, v/v/v/v) system was applied in this study. As a result, four Silybin B glycosylation products, including 7 mg of Silybin B-5-O-β-D-glucoside (SG-1), 12 mg of Silybin B-3-O-β-D-glucoside (SG-2), 10 mg of Silybin B-7-O-β-D-glucoside (SG-3), and 24 mg of Silybin B-20-O-β-D-glucoside (SG-4), were simultaneously separated from 200 mg of glycosylation crude products, with the purity of 89.3, 95.2, 96.4, and 97.5%, respectively. Their structures were identified by spectroscopic analysis.
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Affiliation(s)
- Denglang Zou
- Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of Qinghai-Tibetan Plateau in Qinghai Province, Academy of Plateau Science and Sustainability, School of Life Science, Qinghai Normal University, Xining, P. R. China
| | - Yunbin Cui
- Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of Qinghai-Tibetan Plateau in Qinghai Province, Academy of Plateau Science and Sustainability, School of Life Science, Qinghai Normal University, Xining, P. R. China
| | - Si Li
- Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of Qinghai-Tibetan Plateau in Qinghai Province, Academy of Plateau Science and Sustainability, School of Life Science, Qinghai Normal University, Xining, P. R. China
| | - Duocheng Sang
- Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of Qinghai-Tibetan Plateau in Qinghai Province, Academy of Plateau Science and Sustainability, School of Life Science, Qinghai Normal University, Xining, P. R. China
| | - Weimeng Liu
- Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of Qinghai-Tibetan Plateau in Qinghai Province, Academy of Plateau Science and Sustainability, School of Life Science, Qinghai Normal University, Xining, P. R. China
| | - Tianshu Zhao
- Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of Qinghai-Tibetan Plateau in Qinghai Province, Academy of Plateau Science and Sustainability, School of Life Science, Qinghai Normal University, Xining, P. R. China
| | - Xueli Gu
- Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of Qinghai-Tibetan Plateau in Qinghai Province, Academy of Plateau Science and Sustainability, School of Life Science, Qinghai Normal University, Xining, P. R. China
| | - Tao Chen
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P. R. China
| | - Yulin Li
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P. R. China
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Liu Y, Xu W, Huang ZH, Guo J, Jiang RW. An Efficient Strategy for the Chemo-Enzymatic Synthesis of Bufalin Glycosides with Improved Water Solubility and Inhibition against Na + , K + -ATPase. Chem Biodivers 2020; 17:e2000529. [PMID: 32939944 DOI: 10.1002/cbdv.202000529] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/16/2020] [Indexed: 12/13/2022]
Abstract
In this study, bufalin was glycosylated by an efficient chemo-enzymatic strategy. Firstly, 2-chloro-4-nitrophenyl-1-O-β-D-glucoside (sugar donors) was obtained by chemical synthesis. Then, the glycosylation of the bufalin was achieved with the synthesized sugar donor under the catalysis of two glycosyltransferases (Loki and ASP). Finally, two glycosides, i. e., bufalin-3-O-β-D-glucopyranoside and bufalin-3-O-[β-D-glucopyranosyl-(1→2)-β-D-glucopyranoside)], were obtained by preparative HPLC. Compared to our previously reported sole chemical (total yield 10 % in four steps) or enzymatic methods (30 %), our combined chemo-enzymatic strategy in this article greatly improves the yields of monoglycoside (68 %) and diglycoside (21 %) and decreased the experimental cost (90 %). Furthermore, we tested the water solubility of these glycosides and found that the water solubilities of the two glycosides were 13.1 and 53.7 times of bufalin, respectively. In addition, the inhibitory activity of these glycosides against Na+ , K+ -ATPase were evaluated. The mono-glycosylated compound showed more potent activity than bufalin, while the diglycosylated compound was less potent.
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Affiliation(s)
- Yan Liu
- Department of Cardiology, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, P. R. China.,Department of Cardiology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, P. R. China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education, Jinan University, Guangzhou, 510632, P. R. China
| | - Wei Xu
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education, Jinan University, Guangzhou, 510632, P. R. China
| | - Zhao-He Huang
- Department of Cardiology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, P. R. China
| | - Jun Guo
- Department of Cardiology, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, P. R. China
| | - Ren-Wang Jiang
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education, Jinan University, Guangzhou, 510632, P. R. China
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Xu YL, Kong JQ. OcUGT1-Catalyzing Glycodiversification of Steroids through Glucosylation and Transglucosylation Actions. Molecules 2020; 25:E475. [PMID: 31979165 PMCID: PMC7036888 DOI: 10.3390/molecules25030475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 02/07/2023] Open
Abstract
Steroidal glycosides are important sources of innovative drugs. The increased diversification of steroidal glycosides will expand the probability of discovering active molecules. It is an efficient approach to diversify steroidal glycosides by using steroidal glycosyltransferases. OcUGT1, a uridine diphosphate-d-glucose (UDP-Glc)-dependent glycosyltransferase from Ornithogalum caudatum, is a multifunctional enzyme, and its glycodiversification potential towards steroids has never been fully explored. Herein, the glycodiversification capability of OcUGT1 towards 25 steroids through glucosylation and transglucosylation reactions were explored. Firstly, each of 25 compounds was glucosylated with UDP-Glc. Under the action of OcUGT1, five steroids (testosterone, deoxycorticosterone, hydrocortisone, estradiol, and 4-androstenediol) were glucosylated to form corresponding mono-glucosides and biosides. Next, OcUGT1-mediated transglucosylation activity of these compounds with another sugar donor ortho-nitrophenyl-β-d-glucopyranoside (oNPGlc) was investigated. Results revealed that the same five steroids could be glucosylated to generate mono-glucosides and biosides by OcUGT1 through transglucosylation reactions. These data indicated that OcUGT1-assisted glycodiversification of steroids could be achieved through glucosylation and transglucosylation reactions. These results provide a way to diversify steroidal glycosides, which lays the foundation for the increase of the probability of obtaining active lead compounds.
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Affiliation(s)
| | - Jian-Qiang Kong
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College (State Key Laboratory of Bioactive Substance and Function of Natural Medicines & NHC Key Laboratory of Biosynthesis of Natural Products), Beijing 100050, China;
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