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Zhang L, Lu L, Jiang S, Yin Z, Tan G, Ning F, Qin Z, Huang J, Huang M, Jin J. Salvianolic acid extract prevents Tripterygium wilfordii polyglycosides-induced acute liver injury by modulating bile acid metabolism. JOURNAL OF ETHNOPHARMACOLOGY 2024; 327:117939. [PMID: 38382651 DOI: 10.1016/j.jep.2024.117939] [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: 12/17/2023] [Revised: 02/16/2024] [Accepted: 02/18/2024] [Indexed: 02/23/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tripterygium wilfordii polyglycosides (TWP) tablet is the most widely used traditional Chinese medicine preparation for the treatment of rheumatoid arthritis (RA), but the hepatotoxicity often limits its widespread application. In traditional use, Salvia miltiorrhiza has cardioprotective and hepatoprotective effects. Salvianolic acid extract (SA) is a hydrophilic component of Salvia miltiorrhiza and has significant antioxidant and hepatoprotective effects. AIM OF THE STUDY To investigate the protective effects of SA on the TWP-induced acute liver injury in rats and to explore the related mechanisms by integration of metabolomics and transcriptomics. MATERIALS AND METHODS SA and TWP extracts were identified by UPLC-Q/TOF-MS. SA (200 mg/kg) was administered for consecutive 7 days. On day 7, TWP (360 mg/kg) was administered by gavage to induce the acute liver injury in rats. Serum biochemical assay and H&E staining were used to evaluate liver damage. Liver metabolomics and transcriptomics were used to explore the potential mechanisms, and further molecular biological experiments such as qPCR and IHC were utilized to validate the relevant signaling pathways. RESULTS SA can prevent liver injury symptoms caused by TWP, such as elevated liver index, elevated ALT and AST, and pathological changes in liver tissue. Liver metabolomics studies showed that TWP can significantly alter the content of individual bile acid in the liver and SA had the most significant impact on the biosynthetic pathway of bile acids. The transcriptomics results of the liver indicated that the genes changed in the SA + TWP group were mainly involved in sterol metabolism, lipid regulation and bile acid homeostasis pathways. The gene expression of Nr1h4, which encodes farnesoid X receptor (FXR), an important regulator of bile acid homeostasis, was significantly changed. Further studies confirmed that SA can prevent the downregulation of FXR and its downstream signaling induced by TWP, thereby regulating bile acid metabolism, ultimately preventing acute liver injury caused by TWP. CONCLUSION Our results demonstrated that SA could protect the liver from TWP-induced hepatic injury by modulation of the bile acid metabolic pathway. SA may provide a new strategy for the protection against TWP-induced acute liver injury.
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Affiliation(s)
- Lei Zhang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Langqing Lu
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Shiqin Jiang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Zhaokun Yin
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Guoyao Tan
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Fangqing Ning
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Zhiyan Qin
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Junyuan Huang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Min Huang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jing Jin
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
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Tao W, Zhao C, Lin G, Wang Q, Lv Q, Wang S, Chen Y. UPLC-ESI-QTOF-MS/MS Analysis of the Phytochemical Compositions From Chaenomeles speciosa (Sweet) Nakai Fruits. J Chromatogr Sci 2022; 61:15-31. [PMID: 35134870 DOI: 10.1093/chromsci/bmac002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 11/27/2021] [Indexed: 02/05/2023]
Abstract
Chaenomeles speciosa (Sweet) Nakai (C. speciosa Nakai) is a popular fruit widely used in China for its health-promoting properties. The presences of phytochemical compositions in the plants play an important role in the health benefits. Nevertheless, the detailed information of these ingredients is still unknown. Therefore, in this work, an untargeted analytical method based on ultra-high-performance liquid chromatography-quadrupole-time of flight coupled to mass spectrometry in two different ionization modes was used to qualitative the phytochemicals in C. speciosa Nakai, meanwhile, the anti-inflammatory activity of these phytochemicals was researched through detecting the inhibition of nitric oxide (NO) that was induced by lipopolysaccharide in RAW 264.7 murine macrophage cells. The results showed that there were totally 175 primary and secondary metabolites were identified in the fruit of C. speciosa Nakai, including phenols, terpenoids, flavonoids and other phyto-constituents. Actually, most compounds were described in C. speciosa Nakai fruits for the first time. Besides, the anti-inflammatory activity was measured by the result of NO inhibition rate, the consequence showed that the value of half-inhibitory concentration (IC50) was 365.208 μg/mL. These results indicate that C. speciosa Nakai is an efficient medicinal fruit, which owns various bioactivities and has the potential to treat various diseases.
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Affiliation(s)
- Weili Tao
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Chuanyi Zhao
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Gengxue Lin
- Guangdong Weian Detection Technology Co., Ltd, Jieyang 515300, Guangdong, China
| | - Qiongjin Wang
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Qian Lv
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Shuyun Wang
- Center for Core Facilities, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Yicun Chen
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, Guangdong, China
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CHEN XC, LU Y, LIU Y, ZHOU JW, ZHANG YF, GAO HY, LI D, GAO W. Identification of a cytochrome P450 from Tripterygium hypoglaucum (Levl.) Hutch that catalyzes polpunonic acid formation in celastrol biosynthesis. Chin J Nat Med 2022; 20:691-700. [DOI: 10.1016/s1875-5364(22)60205-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Indexed: 11/03/2022]
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4
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Xun G, Tian Y, Gao Y, Zhang J, Liu X, Sun S, Qian Q, Liu F, Wang Q, Wang X. Identification and comparison of compounds in commercial Tripterygium wilfordii genus preparations with HPLC-QTOF/MS based on molecular networking and multivariate statistical analysis. J Pharm Biomed Anal 2022; 216:114811. [DOI: 10.1016/j.jpba.2022.114811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 04/25/2022] [Accepted: 04/30/2022] [Indexed: 10/18/2022]
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5
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Ou G, Jiang X, Gao A, Li X, Lin Z, Pei S. Celastrol Inhibits Canine Mammary Tumor Cells by Inducing Apoptosis via the Caspase Pathway. Front Vet Sci 2022; 8:801407. [PMID: 35187141 PMCID: PMC8854749 DOI: 10.3389/fvets.2021.801407] [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: 10/25/2021] [Accepted: 12/24/2021] [Indexed: 11/24/2022] Open
Abstract
Canine mammary tumor is a serious disease threatening the health of dogs and can be used as a research model for human breast cancer. The study of canine mammary tumor has a role in improving the welfare of dogs. Most common canine mammary tumor chemotherapy drugs have limited effects and drug resistance. Celastrol is an extract of Tripterygium wilfordii, which has a wide range of biological activities, including significant anti-tumor effects. At present, celastrol has not been used in the clinical treatment for canine mammary tumor. This study investigated the anti-tumor properties of celastrol through in vitro assay of cell proliferation inhibition, cell colony, cell migration, and invasion; flow cytometry, qPCR, and Western Blot methods were used to explore the anti-tumor mechanism of celastrol. The results showed that celastrol can inhibit the proliferation of canine mammary tumor cells in vitro, and decrease the migration and invasion ability of canine mammary tumor cells. We also found that celastrol can upregulate Cleaved Caspase-3 and Cleaved Caspase-9 protein expression levels to promote cell apoptosis, and can regulate cell cycle-related proteins to induce cell cycle arrest. In summary, celastrol may inhibit canine mammary tumor cells through the Caspase pathway, providing a new direction for anti-canine mammary tumor drugs, and is expected to become a new anti-cancer drug for canine mammary tumors.
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Zhou J, Hu T, Liu Y, Tu L, Song Y, Lu Y, Zhang Y, Tong Y, Zhao Y, Su P, Wu X, Huang L, Gao W. Cytochrome P450 catalyses the 29-carboxyl group formation of celastrol. PHYTOCHEMISTRY 2021; 190:112868. [PMID: 34273756 DOI: 10.1016/j.phytochem.2021.112868] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
Celastrol, a potent anticancer and anti-obesity drug, was first isolated from Tripterygium wilfordii Hook. f. and it is produced in small quantities in many members of the Celastraceae family. The heterologous reconstitution of celastrol biosynthesis could be a promising method for the efficient production of celastrol and natural and unnatural derivatives thereof, yet only part of the biosynthetic pathway is known. Here, we report a cytochrome P450 monooxygenase (TwCYP712K1) from T. wilfordii that performs the three-step oxidation of friedelin to polpunonic acid in the celastrol pathway. Heterologous expression of TwCYP712K1 showed that TwCYP712K1 catalyses not only the transformation of friedelin to polpunonic acid but also the oxidation of β-amyrin or α-amyrin. The role of TwCYP712K1 in the biosynthesis of celastrol was further revealed via RNA interference. Some key residues of TwCYP712K1 were also screened by molecular docking and site-directed mutagenesis. Our results lay a solid foundation for further elucidating the biosynthesis of celastrol and related triterpenoids.
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Affiliation(s)
- Jiawei Zhou
- Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China; College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China; School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Tianyuan Hu
- College of Pharmacy, School of Medicine, Hangzhou Normal University, Hangzhou, 311121, China
| | - Yuan Liu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Lichan Tu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Yadi Song
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Yun Lu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Yifeng Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Yuru Tong
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, 100069, China
| | - Yujun Zhao
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ping Su
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | - Xiaoyi Wu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Luqi Huang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Wei Gao
- Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China; School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
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Li F, Li X, Su J, Li Y, He X, Chen L, Zhang Y. A strategy of utilizing Cu 2+-mediating interaction to prepare magnetic imprinted polymers for the selective detection of celastrol in traditional Chinese medicines. Talanta 2021; 231:122339. [PMID: 33965017 DOI: 10.1016/j.talanta.2021.122339] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/10/2021] [Accepted: 03/18/2021] [Indexed: 01/19/2023]
Abstract
In this work, a novel strategy to prepare molecularly imprinted polymers (MIPs) functionalized magnetic carbon nanotubes (MCNTs) via a facile sol-gel polymerization by adopting Cu2+-mediating interaction was presented for selective recognition of celastrol (Cel), in the traditional Chinese medicines (TCM). Firstly, template Cel, 3-aminopropyltriethoxysilane (APTES) as monomer and Cu2+ (co-monomer) were mixed to form a self-assembled pre-complex, in which Cu2+ could coordinate with Cel. Meanwhile, APTES plays a role of bridge between APTES and Cel. Secondly, carboxyl modified MCNTs as substrate was added into the pre-complex solution. After that, a multi-step sol-gel polymerization process was occurred in the presence of tetraethylorthosilicate as cross-linker and acetic acid as catalyst. Finally, MIPs layer was formed on the surface of the MCNTs (Cel-MIPs@MCNTs) after the removal of template with methanol/acetic. The morphology and structure of Cel-MIPs@MCNTs was investigated by various characterization techniques. The adsorption performance of Cel-MIPs@MCNTs to Cel was illustrated by kinetic, isothermal and selective binding experiments. The results displayed that the Cel-MIPs@MCNTs possessed fast kinetic equilibrium time (40 s), high adsorption capacity (13.35 μg mg-1), good imprinting factor of 3.41, and high magnetic responsivity (44.38 emu·g-1), which can be used as an ideal adsorbent for rapid isolation and enrichment of target analytes. A selective and sensitive method based on Cel-MIPs@MCNTs coupling with HPLC was developed for Cel determination including a wide linear range (0.15-200 μg mL-1) with correlation coefficient of 0.9998, a low limit of detection (0.05 μg mL-1). Furthermore, the applicability of Cel-MIPs@MCNTs was demonstrated to isolate and determine Cel in TCM samples with satisfactory recoveries ranged from 84.47% to 91.5% (RSD<5.35%). The results revealed that Cel-MIPs@MCNTs offer great potential as an adsorbent for selective and efficient isolation of Cel from complex TCM samples.
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Affiliation(s)
- Fei Li
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China
| | - Xiaoxuan Li
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China
| | - Jie Su
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, China
| | - Yijun Li
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China; National Demonstration Center for Experimental Chemistry Education (Nankai University), Tianjin, 300071, China
| | - Xiwen He
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China
| | - Langxing Chen
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China.
| | - Yukui Zhang
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116011, China
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8
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Gao J, Zhang Y, Liu X, Wu X, Huang L, Gao W. Triptolide: pharmacological spectrum, biosynthesis, chemical synthesis and derivatives. Theranostics 2021; 11:7199-7221. [PMID: 34158845 PMCID: PMC8210588 DOI: 10.7150/thno.57745] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 04/29/2021] [Indexed: 12/16/2022] Open
Abstract
Triptolide, an abietane-type diterpenoid isolated from Tripterygium wilfordii Hook. F., has significant pharmacological activity. Research results show that triptolide has obvious inhibitory effects on many solid tumors. Therefore, triptolide has become one of the lead compounds candidates for being the next "blockbuster" drug, and multiple triptolide derivatives have entered clinical research. An increasing number of researchers have developed triptolide synthesis methods to meet the clinical need. To provide new ideas for researchers in different disciplines and connect different disciplines with researchers aiming to solve scientific problems more efficiently, this article reviews the research progress made with analyzes of triptolide pharmacological activity, biosynthetic pathways, and chemical synthesis pathways and reported in toxicological and clinical studies of derivatives over the past 20 years, which have laid the foundation for subsequent researchers to study triptolide in many ways.
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Affiliation(s)
- Jie Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yifeng Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
| | - Xihong Liu
- Basic Medical College, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Xiayi Wu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Luqi Huang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China
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9
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Jakubowski HV, Bock N, Busta L, Pearce M, Roston RL, Shomo ZD, Terrell CR. Introducing climate change into the biochemistry and molecular biology curriculum. BIOCHEMISTRY AND MOLECULAR BIOLOGY EDUCATION : A BIMONTHLY PUBLICATION OF THE INTERNATIONAL UNION OF BIOCHEMISTRY AND MOLECULAR BIOLOGY 2021; 49:167-188. [PMID: 32833339 DOI: 10.1002/bmb.21422] [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: 02/27/2020] [Revised: 07/09/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
Our climate is changing due to anthropogenic emissions of greenhouse gases from the production and use of fossil fuels. Present atmospheric levels of CO2 were last seen 3 million years ago, when planetary temperature sustained high Arctic camels. As scientists and educators, we should feel a professional responsibility to discuss major scientific issues like climate change, and its profound consequences for humanity, with students who look up to us for knowledge and leadership, and who will be most affected in the future. We offer simple to complex backgrounds and examples to enable and encourage biochemistry educators to routinely incorporate this most important topic into their classrooms.
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Affiliation(s)
- Henry V Jakubowski
- Department of Chemistry, College of St. Benedict/St. John's University, St. Joseph, Minnesota, USA
| | - Nicholas Bock
- Lamont-Doherty Earth Observatory, Biology and Paleo Environment, Columbia University, Palisades, New York, USA
| | - Lucas Busta
- Department of Biochemistry and Center for Plant Science Innovation, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Matthew Pearce
- NASA Goddard Space Flight Center, Office of Education, NASA Goddard Institute for Space Studies, New York, New York, USA
| | - Rebecca L Roston
- Department of Biochemistry and Center for Plant Science Innovation, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Zachery D Shomo
- Department of Biochemistry and Center for Plant Science Innovation, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Cassidy R Terrell
- Center for Learning Innovation, University of Minnesota Rochester, Rochester, Minnesota, USA
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Selective and sensitive determination of celastrol in traditional Chinese medicine based on molecularly imprinted polymers modified Mn-doped ZnS quantum dots optosensing materials. Colloids Surf B Biointerfaces 2020; 190:110929. [PMID: 32151911 DOI: 10.1016/j.colsurfb.2020.110929] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 01/08/2020] [Accepted: 03/01/2020] [Indexed: 12/16/2022]
Abstract
In this work, we proposed a facile strategy to prepare molecularly imprinted polymers (MIPs) modified Mn-doped ZnS quantum dots (QDs) as optosensing materials via sol-gel polymerization for specific recognition of celastrol (Cel) in traditional Chinese medicine (TCM). Firstly, L-Cysteine (L-Cys) modified Mn-doped ZnS QDs (L-Cys@Mn-ZnS) was used as imprinting substrate. The amino and carboxyl groups on the surface of Mn-ZnS QDs can provide more binding sites for imprinting polymerization. Then, the fluorescent MIPs was synthesized in the presence of L-Cys@Mn-ZnS QDs, template celastrol, 3-aminopropyl triethoxysilane (APTES) and ammonium hydroxide in the ethanol-water (9/1, v/v) solution. The morphology and structure of the products were characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffractometer (XRD) and X-ray photoelectron spectroscopy (XPS). The resulting MIPs functionalized Mn-doped ZnS QDs (denoted as MIPs@L-Cys@Mn-ZnS QDs) had higher imprinting factor of 14.19 and significant selectivity. The MIPs@L-Cys@Mn-ZnS QDs as fluorescent probe exhibited sensitive response to Cel in the linear range from 0.1 μM to 3.5 μM and the limit of detection was estimated to be 35.2 nM. The probe was also applied for the detection of Cel in traditional Chinese medicine with recovery ranged from 88.0%-105.0%. The results confirmed that MIPs@L-Cys@Mn-ZnS QDs could efficiently and specifically capture Cel from actual complex traditional Chinese medicine samples.
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11
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Tu L, Su P, Zhang Z, Gao L, Wang J, Hu T, Zhou J, Zhang Y, Zhao Y, Liu Y, Song Y, Tong Y, Lu Y, Yang J, Xu C, Jia M, Peters RJ, Huang L, Gao W. Genome of Tripterygium wilfordii and identification of cytochrome P450 involved in triptolide biosynthesis. Nat Commun 2020; 11:971. [PMID: 32080175 PMCID: PMC7033203 DOI: 10.1038/s41467-020-14776-1] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 02/01/2020] [Indexed: 11/23/2022] Open
Abstract
Triptolide is a trace natural product of Tripterygium wilfordii. It has antitumor activities, particularly against pancreatic cancer cells. Identification of genes and elucidation of the biosynthetic pathway leading to triptolide are the prerequisite for heterologous bioproduction. Here, we report a reference-grade genome of T. wilfordii with a contig N50 of 4.36 Mb. We show that copy numbers of triptolide biosynthetic pathway genes are impacted by a recent whole-genome triplication event. We further integrate genomic, transcriptomic, and metabolomic data to map a gene-to-metabolite network. This leads to the identification of a cytochrome P450 (CYP728B70) that can catalyze oxidation of a methyl to the acid moiety of dehydroabietic acid in triptolide biosynthesis. We think the genomic resource and the candidate genes reported here set the foundation to fully reveal triptolide biosynthetic pathway and consequently the heterologous bioproduction. Tripterygium wilfordii is a medical plant that can produce antitumor activity compound triptolide. Here, the authors assemble its genome and identify a cytochrome P450 that can catalyze oxidation of a methyl to the acid moiety of dehydroabietic acid in triptolide biosynthesis by integrating multi-omics data.
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Affiliation(s)
- Lichan Tu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China.,School of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Ping Su
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.,Department of Chemistry, The Scripps Research Institute, Jupiter, Florida, USA
| | | | - Linhui Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Jiadian Wang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Tianyuan Hu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Jiawei Zhou
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yifeng Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yujun Zhao
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuan Liu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yadi Song
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yuru Tong
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yun Lu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Jian Yang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Cao Xu
- University of Chinese Academy of Sciences, Beijing, China
| | - Meirong Jia
- Roy J. Carver Department of Biochemistry, Biophysics & Molecular Biology, Iowa State University, Ames, IA, USA
| | - Reuben J Peters
- Roy J. Carver Department of Biochemistry, Biophysics & Molecular Biology, Iowa State University, Ames, IA, USA
| | - Luqi Huang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China. .,School of Pharmaceutical Sciences, Capital Medical University, Beijing, China. .,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.
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12
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Tong YR, Zhang YF, Zhao YJ, Hu TY, Wang JD, Huang LQ, Gao W. Differential expression of the TwHMGS gene and its effect on triptolide biosynthesis in Tripterygium wilfordii. Chin J Nat Med 2020; 17:575-584. [PMID: 31472894 DOI: 10.1016/s1875-5364(19)30059-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Indexed: 01/15/2023]
Abstract
3-Hydroxy-3-methylglutaryl-CoA synthase (HMGS) is the first committed enzyme in the MVA pathway and involved in the biosynthesis of terpenes in Tripterygium wilfordii. The full-length cDNA and a 515 bp RNAi target fragment of TwHMGS were ligated into the pH7WG2D and pK7GWIWG2D vectors to respectively overexpress and silence, TwHMGS was overexpressed and silenced in T. wilfordii suspension cells using biolistic-gun mediated transformation, which resulted in 2-fold increase and a drop to 70% in the expression level compared to cells with empty vector controls. During TwHMGS overexpression, the expression of TwHMGR, TwDXR and TwTPS7v2 was significantly upregulated to the control. In the RNAi group, the expression of TwHMGR, TwDXS, TwDXR and TwMCT visibly displayed downregulation to the control. The cells with TwHMGS overexpressed produced twice higher than the control value. These results proved that differential expression of TwHMGS determined the production of triptolide in T. wilfordii and laterally caused different trends of relative gene expression in the terpene biosynthetic pathway. Finally, the substrate acetyl-CoA was docked into the active site of TwHMGS, suggesting the key residues including His247, Lys256 and Arg296 undergo electrostatic or H-bond interactions with acetyl-CoA.
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Affiliation(s)
- Yu-Ru Tong
- School of Pharmacy Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China; National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; School of Pharmaceutical Science, Capital Medical University, Beijing 100069, China
| | - Yi-Feng Zhang
- School of Pharmaceutical Science, Capital Medical University, Beijing 100069, China; School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Yu-Jun Zhao
- National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Tian-Yuan Hu
- School of Pharmaceutical Science, Capital Medical University, Beijing 100069, China; School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Jia-Dian Wang
- School of Pharmaceutical Science, Capital Medical University, Beijing 100069, China; School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Lu-Qi Huang
- School of Pharmacy Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China; National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Wei Gao
- School of Pharmaceutical Science, Capital Medical University, Beijing 100069, China; School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China.
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Wang Q, Wu Y, Xiang F, Feng Y, Li Z, Ding Y. Effects of puerarin on the pharmacokinetics of triptolide in rats. PHARMACEUTICAL BIOLOGY 2019; 57:407-411. [PMID: 31230510 PMCID: PMC6598480 DOI: 10.1080/13880209.2019.1626448] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Context: Puerarin and triptolide are sometimes used together for the treatment of disease in Chinese clinics; however, the drug-drug interaction between puerarin and triptolide is still unknown. Objective: This study investigates the effects of puerarin on the pharmacokinetics of triptolide in rats and clarifies its main mechanism. Materials and methods: The pharmacokinetic profiles of oral administration of triptolide (1 mg/kg) in Sprague-Dawley rats with (test group, n = 6) or without pretreatment (control group, n = 6) with puerarin (100 mg/kg/day for seven days) were investigated. The effects of puerarin on the transport and metabolic stability of triptolide were also investigated using Caco-2 cell transwell model and rat liver microsomes. Results: The results showed that puerarin could significantly increase the peak plasma concentration (from 187.25 ± 15.36 to 219.67 ± 21.52 ng/mL), and decrease its oral clearance (from 4.92 ± 0.35 to 62.46 ± 3.75 ± 0.19 L/h/kg). The Caco-2 cell transwell experiments indicated that puerarin could decrease the efflux ratio of triptolide from 2.70 to 1.33, and the intrinsic clearance rate of triptolide was decreased by the pretreatment with puerarin (38.8 ± 4.7 vs. 32.9 ± 6.5 μL/min/mg protein). Discussion and conclusions: Puerarin could significantly change the pharmacokinetic profiles of triptolide in rats, and it might exert these effects through increasing the absorption of triptolide by inhibiting the activity of P-gp, or through inhibiting the metabolism of triptolide in rat liver. The results also showed that the dose of triptolide should be decreased when these drugs were co-administered.
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Affiliation(s)
- Qingfa Wang
- Department of Neonatology, Yidu Central Hospital of Weifang, Shandong, China
| | - Yanping Wu
- Department of Neonatology, Yidu Central Hospital of Weifang, Shandong, China
| | - Fengting Xiang
- Department of Neonatology, Yidu Central Hospital of Weifang, Shandong, China
| | - Yan Feng
- Department of Neonatology, Yidu Central Hospital of Weifang, Shandong, China
| | - Zhenghao Li
- Department of Neonatology, Yidu Central Hospital of Weifang, Shandong, China
| | - Yufeng Ding
- Department of Pharmacy, Yidu Central Hospital of Weifang, Shandong, China
- CONTACT Yufeng Ding Department of Pharmacy, Yidu Central Hospital of Weifang, No. 4138, South Linglongshan Road, Weifang262500, Shandong, China
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Zhang Y, Su P, Wu X, Zhou J, Zhao Y, Hu T, Tong Y, Huang L, Gao W. The gibberellin 13-oxidase that specifically converts gibberellin A 9 to A 20 in Tripterygium wilfordii is a 2-oxoglutarate-dependent dioxygenase. PLANTA 2019; 250:1613-1620. [PMID: 31388830 DOI: 10.1007/s00425-019-03240-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 07/15/2019] [Indexed: 05/06/2023]
Abstract
A novel GA13-oxidase ofTripterygium wilfordii, TwGA13ox, is a 2-oxoglutarate-dependent dioxygenase. It specifically catalyzes the conversion of GA9to GA20, but not GA4to GA1. Gibberellins (GAs) play essential roles in plant growth and development. Previous characterization of GA20- and GA3-oxidases yielded a large number of genetic elements that can interconvert different GAs. However, enzymes that catalyze the 13-hydroxylation step are rarely identified. Here, we report that the GA13-oxidase of Tripterygium wilfordii, TwGA13ox, is a 2-oxoglutarate-dependent dioxygenase instead of reported cytochrome P450 oxygenases, among 376 differential proteins in comparative proteomics. Phylogenetic analysis showed that the enzyme resides in its own independent branch in the DOXC class. Unexpectedly, it specifically catalyzes the conversion of GA9 to GA20, but not GA4 to GA1. Contrary to the previous research, TwGA13ox transcriptional expression was upregulated ~ 146 times by exogenous application of methyl jasmonate (MeJA). RNAi targeting of TwGA13ox in T. wilfordii led to an 89.9% decrease of triptolide, a diterpenoid epoxide with extensive anti-inflammatory and anti-tumor properties. In subsequent MeJA supplementation experiments, triptolide production increased 13.4-times. TwGA13ox displayed root-specific expression. Our results provide a new GA13-oxidase from plants and elucidate the metabolic associations within the diterpenoid biosynthetic pathway (GAs, triptolide) at the genetic level.
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Affiliation(s)
- Yifeng Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, 100069, China
| | - Ping Su
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Xiaoyi Wu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Jiawei Zhou
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, 100069, China
| | - Yujun Zhao
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Tianyuan Hu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, 100069, China
| | - Yuru Tong
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, 100700, China
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Luqi Huang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, 100069, China.
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China.
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Ma B, Liu X, Lu Y, Ma X, Wu X, Wang X, Jia M, Su P, Tong Y, Guan H, Jiang Z, Gao J, Huang L, Gao W. A specific UDP-glucosyltransferase catalyzes the formation of triptophenolide glucoside from Tripterygium wilfordii Hook. f. PHYTOCHEMISTRY 2019; 166:112062. [PMID: 31299395 DOI: 10.1016/j.phytochem.2019.112062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 06/25/2019] [Accepted: 06/30/2019] [Indexed: 06/10/2023]
Abstract
Tripterygium wilfordii Hook. f. is a perennial woody vine member of the Celastraceae family. As a traditional Chinese medicine, it contains complex chemical components and exerts various pharmacological activities. In the present study, we identified a glucosyltransferase, TwUGT1, that can catalyze the synthesis of an abietane-type diterpene glucoside, namely, triptophenolide14-O-beta-D-glucopyranoside, and investigated the pharmacological activity of triptophenolide glucoside in diverse cancer cells. Triptophenolide glucoside exhibited significant inhibitory effects on U87-MG, U251, C6, MCF-7, HeLa, K562, and RBL-2H3 cells as determined by pharmacological analysis. The triptophenolide glucoside content of T. wilfordii was analyzed using Agilent Technologies 6490 Triple Quad LC/MS. The glucosyltransferase TwUGT1 belongs to subfamily 88 and group E in family 1. Molecular docking and site-directed mutagenesis of TwUGT1 revealed that the His30, Asp132, Phe134, Thr154, Ala370, Leu376, Gly382, His387, Glu395 and Gln412 residues play crucial roles in the catalytic activity of triptophenolide 14-O-glucosyltransferase. In addition, TwUGT1 was also capable of glucosylating phenolic hydroxyl groups, such as those in liquiritigenin, pinocembrin, 4-methylumbelliferone, phloretin, and rhapontigenin.
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Affiliation(s)
- Baowei Ma
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Xihong Liu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Yun Lu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Xiaochi Ma
- College of Pharmacy, Key Laboratory of Pharmacokinetic and Drug Transport of Liaoning, Academy of Integrative Medicine, Dalian Medical University, Dalian, 116044, China
| | - Xiaoyi Wu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Xing Wang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Meirong Jia
- Roy J. Carver Department of Biochemistry, Biophysics & Molecular Biology, Iowa State University, Ames, IA, 50011, United States
| | - Ping Su
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yuru Tong
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Hongyu Guan
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Zhouqian Jiang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Jie Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Luqi Huang
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; School of Pharmaceutical Sciences, Capital Medical University, Beijing, 100069, China; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China.
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Zhou J, Hu T, Gao L, Su P, Zhang Y, Zhao Y, Chen S, Tu L, Song Y, Wang X, Huang L, Gao W. Friedelane-type triterpene cyclase in celastrol biosynthesis from Tripterygium wilfordii and its application for triterpenes biosynthesis in yeast. THE NEW PHYTOLOGIST 2019; 223:722-735. [PMID: 30895623 DOI: 10.1111/nph.15809] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 03/14/2019] [Indexed: 05/22/2023]
Abstract
Celastrol is a promising bioactive compound isolated from Tripterygium wilfordii and has been shown to possess many encouraging preclinical applications. However, the celastrol biosynthetic pathway is poorly understood, especially the key oxidosqualene cyclase (OSC) enzyme responsible for cyclisation of the main scaffold. Here, we report on the isolation and characterisation of three OSCs from T. wilfordii: TwOSC1, TwOSC2 and TwOSC3. Both TwOSC1 and TwOSC3 were multiproduct friedelin synthases, while TwOSC2 was a β-amyrin synthase. We further found that TwOSC1 and TwOSC3 were involved in the biosynthesis of celastrol and that their common product, friedelin, was a precursor of celastrol. We then reconstituted the biosynthetic pathway of friedelin in engineered yeast constructed by the CRISPR/Cas9 system, with protein modification and medium optimisation, leading to heterologous production of friedelin at 37.07 mg l-1 in a shake flask culture. Our study was the first to identify the genes responsible for biosynthesis of the main scaffold of celastrol and other triterpenes in T. wilfordii. As friedelin has been found in many plants, the results and approaches described here have laid a solid foundation for further explaining the biosynthesis of celastrol and related triterpenoids. Moreover, our results provide insights for metabolic engineering of friedelane-type triterpenes.
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Affiliation(s)
- Jiawei Zhou
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- School of Pharmaceutical Science, Capital Medical University, Beijing, 100069, China
| | - Tianyuan Hu
- School of Pharmaceutical Science, Capital Medical University, Beijing, 100069, China
| | - Linhui Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Ping Su
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yifeng Zhang
- School of Pharmaceutical Science, Capital Medical University, Beijing, 100069, China
| | - Yujun Zhao
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Shang Chen
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Lichan Tu
- School of Pharmaceutical Science, Capital Medical University, Beijing, 100069, China
| | - Yadi Song
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Xing Wang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Luqi Huang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- School of Pharmaceutical Science, Capital Medical University, Beijing, 100069, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China
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Simultaneous detection of Tripterygium wilfordii sesquiterpene alkaloids by microemulsion electrokinetic chromatography coupled with large volume sample stacking. Microchem J 2019. [DOI: 10.1016/j.microc.2019.04.073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Zhao Y, Zhang Y, Su P, Yang J, Huang L, Gao W. Genetic Transformation System for Woody Plant Tripterygium wilfordii and Its Application to Product Natural Celastrol. FRONTIERS IN PLANT SCIENCE 2018; 8:2221. [PMID: 29375599 PMCID: PMC5767223 DOI: 10.3389/fpls.2017.02221] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 12/18/2017] [Indexed: 05/22/2023]
Abstract
Tripterygium wilfordii is a perennial woody liana medicinal plant with several crucial biological activities. Although studies on tissue culture have previously been conducted, research on genetic transformation is much more challenging and therefore results in slower progress. In the present study, a highly efficient transformation system involving the particle bombardment of T. wilfordii with the reporter egfp gene using the PDS-1000/He system was established. A total of seven parameters affecting the genetic transformation were investigated using an L18 (6 × 36)-type orthogonal array. The result indicated that DNA delivery conditions of 3-cm target distance, 1100 psi helium pressure, 28 mmHg chamber vacuum pressure, three times number of bombardment, CaCl2 as precipitation agent, 2 μg plasmid DNA concentration and 48 h post-bombardment incubation time were optimal for T. wilfordii cell suspensions transformation. The average transformation efficiency was 19.17%. Based on this transformation system, the overexpression of two T. wilfordii farnesyl pyrophosphate synthase genes (TwFPSs) was performed in cell suspensions. Integration of the TwFPSs in the genome was verified by PCR analysis and also by Southern blotting using hygromycin gene as a probe. Real-time quantitative PCR analysis showed that the expression of TwFPS1&2 was highly up regulated in transgenic cell suspensions compared with control cells. The detection of metabolites showed that TwFPS1&2 could highly increase the celastrol content (973.60 μg/g) in transgenic cells. These results indicated that this transformation system is an effective protocol for characterizing the function of genes in the terpenoid biosynthetic pathway.
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Affiliation(s)
- Yujun Zhao
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yifeng Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Ping Su
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jian Yang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Luqi Huang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
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Su P, Guan H, Zhao Y, Tong Y, Xu M, Zhang Y, Hu T, Yang J, Cheng Q, Gao L, Liu Y, Zhou J, Peters RJ, Huang L, Gao W. Identification and functional characterization of diterpene synthases for triptolide biosynthesis from Tripterygium wilfordii. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 93:50-65. [PMID: 29086455 PMCID: PMC5848467 DOI: 10.1111/tpj.13756] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 10/12/2017] [Accepted: 10/23/2017] [Indexed: 05/09/2023]
Abstract
Tripterygium wilfordii, which has long been used as a medicinal plant, exhibits impressive and effective anti-inflammatory, immunosuppressive and anti-tumor activities. The main active ingredients are diterpenoids and triterpenoids, such as triptolide and celastrol, respectively. A major challenge to harnessing these natural products is that they are found in very low amounts in planta. Access has been further limited by the lack of knowledge regarding their underlying biosynthetic pathways, particularly for the abeo-abietane tri-epoxide lactone triptolide. Here suspension cell cultures of T. wilfordii were found to produce triptolide in an inducible fashion, with feeding studies indicating that miltiradiene is the relevant abietane olefin precursor. Subsequently, transcriptome data were used to identify eight putative (di)terpene synthases that were then characterized for their potential involvement in triptolide biosynthesis. This included not only biochemical studies which revealed the expected presence of class II diterpene cyclases that produce the intermediate copalyl diphosphate (CPP), along with the more surprising finding of an atypical class I (di)terpene synthase that acts on CPP to produce the abietane olefin miltiradiene, but also their subcellular localization and, critically, genetic analysis. In particular, RNA interference targeting either both of the CPP synthases, TwTPS7v2 and TwTPS9v2, or the subsequently acting miltiradiene synthase, TwTPS27v2, led to decreased production of triptolide. Importantly, these results then both confirm that miltiradiene is the relevant precursor and the relevance of the identified diterpene synthases, enabling future studies of the biosynthesis of this important bioactive natural product.
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Affiliation(s)
- Ping Su
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Hongyu Guan
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yujun Zhao
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuru Tong
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Meimei Xu
- Roy J. Carver Department of Biochemistry, Biophysics & Molecular Biology, Iowa State University, Ames, IA, USA
| | - Yifeng Zhang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Tianyuan Hu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Jian Yang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qiqing Cheng
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
| | - Linhui Gao
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yujia Liu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Jiawei Zhou
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Reuben J. Peters
- Roy J. Carver Department of Biochemistry, Biophysics & Molecular Biology, Iowa State University, Ames, IA, USA
| | - Luqi Huang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- For correspondence: Luqi Huang (), Wei Gao ()
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University, Beijing, China
- For correspondence: Luqi Huang (), Wei Gao ()
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Development of triptolide-nanoemulsion gels for percutaneous administration: physicochemical, transport, pharmacokinetic and pharmacodynamic characteristics. J Nanobiotechnology 2017; 15:88. [PMID: 29202753 PMCID: PMC5715633 DOI: 10.1186/s12951-017-0323-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Accepted: 11/25/2017] [Indexed: 12/24/2022] Open
Abstract
Background This work aimed to provide useful information on the use of nanoemulsions for the percutaneous administration of triptolide. Lipid nanosystems have great potential for transdermal drug delivery. Nanoemulsions and nanoemulsion gels were prepared to enhance percutaneous permeation. Microstructure and in vitro/in vivo percutaneous delivery characteristics of triptolide (TPL)-nanoemulsions and TPL-nanoemulsion gels were compared. The integrity of the nanoemulsions and nanoemulsion gels during transdermal delivery and its effects on the surface of skin were also investigated. The penetration mechanisms of nanoemulsions and nanoemulsion gels were investigated by differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FTIR). The transport characteristics of fluorescence-labelled nanoemulsions were probed using laser scanning confocal microscopy. A chronic dermatitis/eczema model in mice ears and the pharmacodynamic of the TPL-nanoemulsion gels were also investigated. Results Compared to TPL gels, significantly greater cumulative amounts of TPL-nanoemulsion gels and TPL-nanoemulsions penetrated rat skin in vitro. The in vivo microdialysis showed the concentration–time curve AUC0–t for TPL-NPs is bigger than the TPL-gels. At the same time, TPL-NPs had a larger effect on the surface of skin. By hydrating keratin and changing the structure of both the stratum corneum lipids and keratin, nanoemulsions and nanoemulsion gels influence skin to promote percutaneous drug penetration. Both hairfollicles and the stratum corneum are also important in this transdermal drug delivery system. Moderate and high dosages of the TPL-nanoemulsion gels can significantly improve the symptoms of dermatitis/eczema inflammation and edema erythematic in mice ears and can reduce the expression of IFN-γ and IL-4. Moreover, the TPL-nanoemulsion gels cause less gastrointestinal damage than that of the Tripterygium wilfordii oral tablet does. Conclusions Nanoemulsions could be suitable for transdermal stably releasing drugs and maintaining the effective drug concentration. The TPL-nanoemulsion gels provided higher percutaneous amounts than other carriers did. These findings suggest that nanoemulsion gels could be promising percutaneous carriers for TPL. The TPL-nanoemulsion gels have a significant treatment effect on dermatitis/eczema in the mice model and is expected to provide a new, low-toxicity and long-term preparation for the clinical treatment of dermatitis/eczema in transdermal drug delivery systems. Electronic supplementary material The online version of this article (10.1186/s12951-017-0323-0) contains supplementary material, which is available to authorized users.
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Li P, Zhou X, Qu D, Guo M, Fan C, Zhou T, Ling Y. Preliminary study on fabrication, characterization and synergistic anti-lung cancer effects of self-assembled micelles of covalently conjugated celastrol-polyethylene glycol-ginsenoside Rh2. Drug Deliv 2017; 24:834-845. [PMID: 28532223 PMCID: PMC8241176 DOI: 10.1080/10717544.2017.1326540] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 05/01/2017] [Accepted: 05/02/2017] [Indexed: 01/26/2023] Open
Abstract
The aim of this study was to develop an amphipathic polyethylene glycol (PEG) derivative that was bi-terminally modified with celastrol and ginsenoside Rh2 (Celastrol-PEG-G Rh2). Such derivative was capable of forming novel, celastrol-loaded polymeric micelles (CG-M) for endo/lysosomal delivery and thereby synergistic treatment of lung cancer. Celastrol-PEG-G Rh2 with a yield of 55.6% was first synthesized and characterized. Its critical micellar concentration was 1 × 10-5 M, determined by pyrene entrapment method. CG-M had a small particle size of 121.53 ± 2.35 nm, a narrow polydispersity index of 0.214 ± 0.001 and a moderately negative zeta potential of -23.14 ± 3.15 mV. Celastrol and G Rh2 were rapidly released from CG-M under acidic and enzymatic conditions, but slowly released in normal physiological environments. In cellular studies, the internalization of celastrol and G Rh2 by human non-small cell lung cancer (A549) cells treated with CG-M was 5.8-fold and 1.8-fold higher than that of non-micelle control. Combinational therapy of celastrol and G Rh2 using CG-M exhibited synergistic anticancer activities in cell apoptosis and proliferation assays via rapid drug release within endo/lysosomes. Most importantly, the celastrol in CG-M exhibited a long elimination half-life of 445.3 ± 43.5 min and an improved area under the curve of 645060.8 ± 63640.7 ng/mL/h, that were 1.03-fold and 2.44-fold greater than those of non-micelle control, respectively. These findings suggest that CG-M is a promising vector for precisely releasing anticancer drugs within the tumor cells, and thereby exerts an improved synergistic anti-lung cancer effect.
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Affiliation(s)
- Peng Li
- Department of Oncology, Changzhou Cancer Hospital of Soochow University, Changzhou, P.R. China
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, P.R. China
| | - XiaoYue Zhou
- Department of Oncology, Changzhou Cancer Hospital of Soochow University, Changzhou, P.R. China
| | - Ding Qu
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, P.R. China
- Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, P.R. China, and
| | - Mengfei Guo
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, P.R. China
- Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, P.R. China, and
| | - Chenyi Fan
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, P.R. China
- Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, P.R. China, and
| | - Tong Zhou
- Department of Oncology, Changzhou Cancer Hospital of Soochow University, Changzhou, P.R. China
| | - Yang Ling
- Department of Oncology, Changzhou Cancer Hospital of Soochow University, Changzhou, P.R. China
- Clinical Oncology Laboratory, Changzhou Cancer Hospital of Soochow University, Changzhou, P.R. China
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22
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Su P, Guan H, Zhang Y, Wang X, Gao L, Zhao Y, Hu T, Zhou J, Ma B, Tu L, Tong Y, Huang L, Gao W. Probing the Single Key Amino Acid Responsible for the Novel Catalytic Function of ent-Kaurene Oxidase Supported by NADPH-Cytochrome P450 Reductases in Tripterygium wilfordii. FRONTIERS IN PLANT SCIENCE 2017; 8:1756. [PMID: 29081786 PMCID: PMC5645531 DOI: 10.3389/fpls.2017.01756] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 09/25/2017] [Indexed: 05/07/2023]
Abstract
Tripterygium wilfordii produces not only ent-kaurene, which is an intermediate of gibberellin (GA) biosynthesis in flowering plants, but also 16α-hydroxy-ent-kaurane, whose physiological role has not been characterized. The two compounds are biosynthesized from the universal diterpenoid precursor (E,E,E)-geranylgeranyl diphosphate (GGPP) by diterpene synthases, which have been discovered and functionally characterized in T. wilfordii. Here, we described the functional characterization of four cytochrome P450 reductases (TwCPR) and one ent-kaurene oxidase (TwKO). Four TwCPRs were found to have relatively ubiquitous expression in T. wilfordii root, stem, leaf, and flower tissues. Co-expression of both a TwCPR and TwKO in yeast showed that TwCPR3 has a slightly better activity for providing the electrons required for these reactions, indicating that TwCPR3 is more suitable for use in the functional analysis of other cytochrome P450 monooxygenases. TwKO catalyzed the three-step oxidation of the C4α methyl of the tetracyclic diterpene intermediate ent-kaurene to form ent-kaurenoic acid as an early step in GA biosynthesis. Notably, TwKO could also convert 16α-hydroxy-ent-kaurane to 16α-hydroxy-ent-kaurenoic acid, indicating an important function of 16α-hydroxy-ent-kaurane in the anti-HIV principle tripterifordin biosynthetic pathway in planta. Homology modeling and molecular docking were used to investigate the unknown crucial active amino acid residue involved in the catalytic reaction of TwKO, and one key residue (Leu387) contributed to the formation of 16α-hydroxy-ent-kaurenoic acid, most likely by forming hydrogen bonds with the hydroxyl group (-OH) of 16α-hydroxy-ent-kaurane, which laid the basis for further investigation of the multifunctional nature of KO catalysis. Also, our findings paved the way for the complete biosynthesis of the anti-HIV principle tripterifordin.
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Affiliation(s)
- Ping Su
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Hongyu Guan
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, China
| | - Yifeng Zhang
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Xing Wang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Beijing Key Lab of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Linhui Gao
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yujun Zhao
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Tianyuan Hu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Jiawei Zhou
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Baowei Ma
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Lichan Tu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yuru Tong
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Luqi Huang
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- *Correspondence: Luqi Huang, Wei Gao,
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Beijing Key Lab of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- *Correspondence: Luqi Huang, Wei Gao,
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Pan Y, Zhang J, Zhao YL, Wang YZ, Huang HY. Investigation of metabolites accumulation in medical plant Gentiana rigescens during different growing stage using LC-MS/MS and FT-IR. BOTANICAL STUDIES 2015; 56:14. [PMID: 28510823 PMCID: PMC5434671 DOI: 10.1186/s40529-015-0094-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 05/18/2015] [Indexed: 06/07/2023]
Abstract
BACKGROUND Gentiana rigescens, an important medicinal plant in China, has been widely cultivated in Yunnan province, China. Previous studies were focused on analysis and determination of the metabolites isolated from this species, the accumulation of these metabolites during growth period are not yet clear. In this study, samples for the experiments were obtained by tissue culture. FT-IR and LC-MS/MS method were performed to distinguish the variation on the major metabolites in G. rigescens during growing stage when combined with chemometrics. RESULTS Methodology validations were all within the required limits. The metabolites were visually different in tissue culture samples and mature plants. The diversity of metabolites increased proportionally with plant growth. The quantitative analysis showed the content of gentiopicroside was significantly vary during different growing stage. The highest content of gentiopicroside (122.93 ± 7.01 mg/g) was detected in leaf of regenerated plantlet, whereas its content in root significantly increased along with underground parts growth. Moreover, flavonoids mainly distributed in aerial parts showed potential competitive relationship during plant growth. CONCLUSION The distribution and accumulation of metabolites are associated with different parts and plant growth, which provide potential evidences for the rational application and exploitation of G. rigescens.
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Affiliation(s)
- Yu Pan
- College of Traditional Chinese Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, China
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Ji Zhang
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Yan-Li Zhao
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Yuan-Zhong Wang
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Heng-Yu Huang
- College of Traditional Chinese Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, China
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Zhang M, Su P, Zhou YJ, Wang XJ, Zhao YJ, Liu YJ, Tong YR, Hu TY, Huang LQ, Gao W. Identification of geranylgeranyl diphosphate synthase genes from Tripterygium wilfordii. PLANT CELL REPORTS 2015; 34:2179-88. [PMID: 26449416 DOI: 10.1007/s00299-015-1860-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 08/27/2015] [Accepted: 08/31/2015] [Indexed: 05/22/2023]
Abstract
We found triptolide synthesis is correlated with the expressions of TwGGPPS1 and TwGGPPS4 . This lays the foundation for future studies of biosynthetic pathways for triptolide and other diterpenoids in T. wilfordii. Tripterygium wilfordii is a traditional Chinese medical plant commonly used to treat rheumatoid arthritis. One of its main bioactive compounds is triptolide, which is identified as an abietane-type diterpenoid natural product. Geranylgeranyl diphosphate synthase (GGPPS) catalyses the synthesis of GGPP (geranylgeranyl diphosphate), the common precursor of diterpenes, and is therefore a crucial enzyme in diterpene biosynthesis. A previous study showed that GGPP could be catalyzed by copalyl diphosphate synthase and kaurene synthase like of Salvia miltiorrhiza (SmCPS, SmKSL) to miltiradiene, a key intermediate in tanshinone biosynthesis. In this paper, five new full-length cDNAs (TwGGPPS) encoding GGPP synthases were cloned from T. wilfordii. Sequence comparisons revealed that all six TwGGPPSs (including TwGGPPS2 cloned previously) exhibit similarities to GGPPSs of other plants. Subsequent functional complement assays demonstrated that TwGGPPS1, TwGGPPS4 and TwGGPPS5 can participate in miltiradiene biosynthesis in the recombinant E. coli. Correlation analysis of gene expressions and secondary metabolite accumulation indicated that TwGGPPS1 and TwGGPPS4 are likely involved in the biosynthesis of triptolide. These findings lay the foundation for future studies of the biosynthetic pathways for triptolide and other diterpenoids in T. wilfordii.
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Affiliation(s)
- Meng Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Ping Su
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yong-Jin Zhou
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Kemivägen 10, 41296, Göteborg, Sweden
| | - Xiu-Juan Wang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Yu-Jun Zhao
- National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yu-Jia Liu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Yu-Ru Tong
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Tian-Yuan Hu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Lu-Qi Huang
- National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
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Tong Y, Su P, Zhao Y, Zhang M, Wang X, Liu Y, Zhang X, Gao W, Huang L. Molecular Cloning and Characterization of DXS and DXR Genes in the Terpenoid Biosynthetic Pathway of Tripterygium wilfordii. Int J Mol Sci 2015; 16:25516-35. [PMID: 26512659 PMCID: PMC4632813 DOI: 10.3390/ijms161025516] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 10/08/2015] [Accepted: 10/13/2015] [Indexed: 11/18/2022] Open
Abstract
1-Deoxy-d-xylulose-5-phosphate synthase (DXS) and 1-deoxy-d-xylulose-5-phosphate reductoisomerase (DXR) genes are the key enzyme genes of terpenoid biosynthesis but still unknown in Tripterygium wilfordii Hook. f. Here, three full-length cDNA encoding DXS1, DXS2 and DXR were cloned from suspension cells of T. wilfordii with ORF sizes of 2154 bp (TwDXS1, GenBank accession no.KM879187), 2148 bp (TwDXS2, GenBank accession no.KM879186), 1410 bp (TwDXR, GenBank accession no.KM879185). And, the TwDXS1, TwDXS2 and TwDXR were characterized by color complementation in lycopene accumulating strains of Escherichia coli, which indicated that they encoded functional proteins and promoted lycopene pathway flux. TwDXS1 and TwDXS2 are constitutively expressed in the roots, stems and leaves and the expression level showed an order of roots > stems > leaves. After the suspension cells were induced by methyl jasmonate, the mRNA expression level of TwDXS1, TwDXS2, and TwDXR increased, and triptophenolide was rapidly accumulated to 149.52 µg·g−1, a 5.88-fold increase compared with the control. So the TwDXS1, TwDXS2, and TwDXR could be important genes involved in terpenoid biosynthesis in Tripterygium wilfordii Hook. f.
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Affiliation(s)
- Yuru Tong
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China.
| | - Ping Su
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China.
| | - Yujun Zhao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China.
| | - Meng Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China.
| | - Xiujuan Wang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China.
| | - Yujia Liu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China.
| | - Xianan Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China.
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China.
| | - Luqi Huang
- National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
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26
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Luo H, Wu X, Huang H, Chen S, Yang W, Zhang L, Cui H, Yang J, Yang A. Simultaneous determination of triptolide, tripterifordin, celastrol and nine sesquiterpene alkaloids in Tripterygium preparations using high-performance liquid chromatography-triple quadrupole mass spectrometry. J Pharm Biomed Anal 2015; 117:195-204. [PMID: 26363489 DOI: 10.1016/j.jpba.2015.08.043] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 08/30/2015] [Accepted: 08/31/2015] [Indexed: 10/23/2022]
Abstract
Tripterygium wilfordii tablet (TWT) and Tripterygium hypoglaucum tablet (THT), the preparations of the two Tripterygium herbs, are well known for the treatment of rheumatoid arthritis and other related inflammatory diseases clinically. In the present study, a high performance liquid chromatography (HPLC) coupled with electrospray ionization (ESI) tandem triple quadrupole mass spectrometry (QQQ/MS) method was developed for simultaneous quantification of 12 chemical components in Tripterygium preparations. The fragmentation patterns of analytes using ESI and collision-induced dissociation (CID) techniques were reported. This assay method was validated with respect to linearity (r(2)>0.9991), precision, repeatability, and accuracy (recovery rate between 97.2 and 104.2%). The proposed method was successfully applied for simultaneous quantification of the 12 compounds in Tripterygium preparations from the different manufactures. In addition, to evaluate the quality of Tripterygium preparations, partial least square discrimination analysis (PLS-DA) was performed to differentiate the contents of 12 compounds. In conclusion, the established HPLC/QQQ/MS method was proven to be useful and efficient for quality control of Tripterygium preparations.
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Affiliation(s)
- Heng Luo
- Center of Instrumental Analysis, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China
| | - Xia Wu
- Sichuan Key Laboratory of Quality and Innovation Research of Chinese Materia Medica, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China
| | - Hao Huang
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China; State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau
| | - Shuiying Chen
- Funan Jinsha Community Health Service Center of Qingyang District, Chengdu 610072, PR China
| | - Wei Yang
- Sichuan Key Laboratory of Quality and Innovation Research of Chinese Materia Medica, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China
| | - Lei Zhang
- Sichuan Key Laboratory of Quality and Innovation Research of Chinese Materia Medica, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China
| | - Hongmei Cui
- Center of Instrumental Analysis, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China
| | - Jun Yang
- Center of Instrumental Analysis, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China
| | - Andong Yang
- Center of Instrumental Analysis, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China.
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Gong X, Chen Y, Wu Y. Absorption and Metabolism Characteristics of Triptolide as Determined by a Sensitive and Reliable LC-MS/MS Method. Molecules 2015; 20:8928-40. [PMID: 25993421 PMCID: PMC6272403 DOI: 10.3390/molecules20058928] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 05/07/2015] [Accepted: 05/12/2015] [Indexed: 11/17/2022] Open
Abstract
In this research, a sensitive and reliable LC-MS/MS method was developed and applied to determine the concentration of triptolide in rat plasma, microsomes, and cell incubation media. The absolute oral bioavailability of triptolide is 63.9% at a dose of 1 mg·kg−1. In vitro, the bidirectional transport of triptolide across Caco-2 cells was studied. A markedly higher transport of triptolide across Caco-2 cells was observed in the basolateral-to-apical direction and was abrogated in the presence of the P-gp inhibitor, verapamil. The result indicated that P-gp might be involved in the absorption of triptolide in intestinal. The metabolic stability was also investigated using human liver microsome incubation systems in vitro. In HLMs, incubations with an initial triptolide concentration of 1 μM resulted in an 82.4% loss of substrate over 60 min, and the t1/2 was 38 min, which indicated that triptolide was easily metabolized in human liver microsomes. In conclusion, the absolute oral bioavailability of triptolide in plasma, transport across Caco-2 cell monolayers, and metabolic stability in human liver microsomes were systematically investigated by using a sensitive and reliable LC-MS/MS method.
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Affiliation(s)
- Xiaomei Gong
- Department of Radiatin Oncology, Shanghai Pulmonary Hospital, Tongji University, 507 Zhengmin Road, Shanghai 200433, China.
| | - Yan Chen
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai 200433, China.
| | - Yi Wu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, 1# Weigang, Nanjing 210095, Jiangsu, China.
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Cloning and characterisation of the gene encoding 3-hydroxy-3-methylglutaryl-CoA synthase in Tripterygium wilfordii. Molecules 2014; 19:19696-707. [PMID: 25438080 PMCID: PMC6271793 DOI: 10.3390/molecules191219696] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 11/19/2014] [Accepted: 11/20/2014] [Indexed: 11/28/2022] Open
Abstract
Tripterygium wilfordii is a traditional Chinese medical plant used to treat rheumatoid arthritis and cancer. The main bioactive compounds of the plant are diterpenoids and triterpenoids. 3-Hydroxy-3-methylglutaryl-CoA synthase (HMGS) catalyses the reaction of acetoacetyl-CoA to 3-hydroxy-3-methylglutaryl-CoA, which is the first committed enzyme in the mevalonate (MVA) pathway. The sequence information of HMGS in Tripterygium wilfordii is a basic resource necessary for studying the terpenoids in the plant. In this paper, full-length cDNA encoding HMGS was isolated from Tripterygium wilfordii (abbreviated TwHMGS, GenBank accession number: KM978213). The full length of TwHMGS is 1814 bp, and the gene encodes a protein with 465 amino acids. Sequence comparison revealed that TwHMGS exhibits high similarity to HMGSs of other plants. The tissue expression patterns revealed that the expression level of TwHMGS is highest in the stems and lowest in the roots. Induced expression of TwHMGS can be induced by MeJA, and the expression level is highest 4 h after induction. The functional complement assays in the YML126C knockout yeast demonstrated that TwHMGS participates in yeast terpenoid biosynthesis.
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