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Xu W, Han S, Wang W, Luo Z, Wang X, Shi C, Shan J. Analysis of gut microbiota metabolites of platycodin D and activity verification. J Pharm Biomed Anal 2024; 242:116016. [PMID: 38367521 DOI: 10.1016/j.jpba.2024.116016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/01/2024] [Accepted: 02/04/2024] [Indexed: 02/19/2024]
Abstract
As the main saponin component of Platycodon grandiflorum A.DC, Platycodin D has been reported to have an anti-obesity effect. Due to poor oral absorption, the intestinal microflora usually transforms saponins into potential bioactive substances. In this study, we profiled the metabolic changes of platycodin D by incubating it with intestinal microflora extracted from mice feces subjected to either a standard control diet or a high-fat diet. A UPLC-LTQ-Orbitrap-MS method was used for rapid analysis of the metabolic profile of platycodin D. A total of 10 compounds were identified 9 of which were assessed to be metabolized by intestinal microflora. Dehydroxylation and deglycosylation were the major metabolic process of platycodin D. The metabolic profile of platycodin D biotransformed by intestinal microflora was elucidated based on the metabolite information. Platycodin D and its metabolites had anti-inflammatory effects in LPS-stimulated RAW 264.7 cells. Only platycodin D could alleviate lipid accumulation in FFA-treated HepG2 cells.
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Affiliation(s)
- Weichen Xu
- Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Shasha Han
- Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Wenying Wang
- Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Zichen Luo
- Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Xuan Wang
- Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Chen Shi
- Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China.
| | - Jinjun Shan
- Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China.
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Wang S, Meng D, Feng M, Li C, Wang Y. Efficient Plant Triterpenoids Synthesis in Saccharomyces cerevisiae: from Mechanisms to Engineering Strategies. ACS Synth Biol 2024; 13:1059-1076. [PMID: 38546129 DOI: 10.1021/acssynbio.4c00061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Triterpenoids possess a range of biological activities and are extensively utilized in the pharmaceutical, food, cosmetic, and chemical industries. Traditionally, they are acquired through chemical synthesis and plant extraction. However, these methods have drawbacks, including high energy consumption, environmental pollution, and being time-consuming. Recently, the de novo synthesis of triterpenoids in microbial cell factories has been achieved. This represents a promising and environmentally friendly alternative to traditional supply methods. Saccharomyces cerevisiae, known for its robustness, safety, and ample precursor supply, stands out as an ideal candidate for triterpenoid biosynthesis. However, challenges persist in industrial production and economic feasibility of triterpenoid biosynthesis. Consequently, metabolic engineering approaches have been applied to improve the triterpenoid yield, leading to substantial progress. This review explores triterpenoids biosynthesis mechanisms in S. cerevisiae and strategies for efficient production. Finally, the review also discusses current challenges and proposes potential solutions, offering insights for future engineering.
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Affiliation(s)
- Shuai Wang
- Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, Institute of Biochemical Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Dong Meng
- Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, Institute of Biochemical Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Meilin Feng
- Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, Institute of Biochemical Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Chun Li
- Key Laboratory for Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Ying Wang
- Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, Institute of Biochemical Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
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Han J, Wang L, Tang X, Liu R, Shi L, Zhu J, Zhao M. Glsirt1-mediated deacetylation of GlCAT regulates intracellular ROS levels, affecting ganoderic acid biosynthesis in Ganoderma lucidum. Free Radic Biol Med 2024; 216:1-11. [PMID: 38458391 DOI: 10.1016/j.freeradbiomed.2024.02.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/10/2024]
Abstract
Lysine acetylation is a reversible, dynamic protein modification regulated by lysine acetyltransferases and deacetylases. However, in Basidiomycetes, the extent of lysine acetylation of nonhistone proteins remains largely unknown. Recently, we identified the deacetylase Glsirt1 as a key regulator of the biosynthesis of ganoderic acid (GA), a key secondary metabolite of Ganoderma lucidum. To gain insight into the characteristics, extent, and biological function of Glsirt1-mediated lysine acetylation in G. lucidum, we aimed to identify additional Glsirt1 substrates via comparison of acetylomes between wild-type (WT) and Glsirt1-silenced mutants. A large amount of Glsirt1-dependent lysine acetylation occurs in G. lucidum according to the results of this omics analysis, involving energy metabolism, protein synthesis, the stress response and other pathways. Our results suggest that GlCAT is a direct target of Glsirt1 and that the deacetylation of GlCAT by Glsirt1 reduces catalase activity, thereby leading to the accumulation of intracellular reactive oxygen species (ROS) and positively regulating the biosynthesis of GA. Our findings provide evidence for the involvement of nonhistone lysine acetylation in the biological processes of G. lucidum and help elucidate the involvement of important ROS signaling molecules in regulating physiological and biochemical processes in this organism. In conclusion, this proteomic analysis reveals a striking breadth of cellular processes affected by lysine acetylation and provides new nodes of intervention in the biosynthesis of secondary metabolites in G. lucidum.
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Affiliation(s)
- Jing Han
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China.
| | - Lingshuai Wang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China.
| | - Xin Tang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China.
| | - Rui Liu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China.
| | - Liang Shi
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China.
| | - Jing Zhu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China.
| | - Mingwen Zhao
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China.
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Liu Y, Lu Z, Yan Z, Lin A, Han S, Li Y, Yang X, Li X, Yin X, Zhang R, Li K. Sea Cucumber Viscera Contains Novel Non-Holostane-Type Glycoside Toxins that Possess a Putative Chemical Defense Function. J Chem Ecol 2024; 50:185-196. [PMID: 38441803 DOI: 10.1007/s10886-024-01483-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/02/2024] [Accepted: 02/25/2024] [Indexed: 04/25/2024]
Abstract
Sea cucumbers frequently expel their guts in response to predators and an aversive environment, a behavior perceived as releasing repellents involved in chemical defense mechanisms. To investigate the chemical nature of the repellent, the viscera of stressed sea cucumbers (Apostichopus japonicus) in the Yellow Sea of China were collected and chemically analyzed. Two novel non-holostane triterpene glycosides were isolated, and the chemical structures were elucidated as 3ꞵ-O-[ꞵ-D-glucopyranosyl-(1→2)-ꞵ-D-xylopyranosyl]-(20S)-hydroxylanosta-7,25-diene-18(16)-lactone (1) and 3ꞵ-O-[ꞵ-D-quinovopyranosyl-(1→2)-ꞵ-D-xylopyranosyl]-(20S)-hydroxylanosta-7,25-diene-18(16)-lactone (2) by spectroscopic and mass-spectrometric analyses, exemplifying a triterpene glycoside constituent of an oligosaccharide containing two sugar-units and a non-holostane aglycone. Zebrafish embryos were exposed to various doses of 1 and 2 from 4 to 96 hpf. Compound 1 exposure showed 96 h-LC50 41.5 µM and an increased zebrafish mortality rates in roughly in a dose- and time-dependent manner. Compound 2, with different sugar substitution, exhibited no mortality and moderate teratogenic toxicity with a 96 h-EC50 of 173.5 µM. Zebrafish embryos exhibited teratogenic effects, such as reduced hatchability and total body length. The study found that triterpene saponin from A. japonicus viscera had acute toxicity in zebrafish embryos, indicating a potential chemical defense role in the marine ecosystem.
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Affiliation(s)
- Yanfang Liu
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhen Lu
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Zhi Yan
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- School of Ocean, Yantai University, Yantai, 264005, China
| | - Ainuo Lin
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shaoshuai Han
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai, 264209, China
| | - Yaxi Li
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao Yang
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaodong Li
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Xiuli Yin
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Ranran Zhang
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ke Li
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China.
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Yang C, Halitschke R, O'Connor SE. OXIDOSQUALENE CYCLASE 1 and 2 influence triterpene biosynthesis and defense in Nicotiana attenuata. Plant Physiol 2024; 194:2580-2599. [PMID: 38101922 PMCID: PMC10980520 DOI: 10.1093/plphys/kiad643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 11/07/2023] [Indexed: 12/17/2023]
Abstract
Triterpenes are a class of bioactive compounds with diverse biological functions, playing pivotal roles in plant defense against biotic stressors. Oxidosqualene cyclases (OSCs) serve as gatekeepers in the biosynthesis of triterpenes. In this study, we utilized a Nicotiana benthamiana heterologous expression system to characterize NaOSC1 from Nicotiana attenuata as a multifunctional enzyme capable of synthesizing lupeol, dammarenediol II, 3-alpha,20-lupanediol, and 7 other triterpene scaffolds. We also demonstrated that NaOSC2 is, in contrast, a selective enzyme, producing only the β-amyrin scaffold. Through virus-induced gene silencing and in vitro toxicity assays, we elucidated the roles of NaOSC1 and NaOSC2 in the defense of N. attenuata against Manduca sexta larvae. Metabolomic and feature-based molecular network analyses of leaves with silenced NaOSC1 and NaOSC2 unveiled 3 potential triterpene glycoside metabolite clusters. Interestingly, features identified as triterpenes within these clusters displayed a significant negative correlation with larval mass. Our study highlights the pivotal roles of NaOSC1 and NaOSC2 from N. attenuata in the initial steps of triterpene biosynthesis, subsequently influencing defense against M. sexta through the modulation of downstream triterpene glycoside compounds.
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Affiliation(s)
- Caiqiong Yang
- Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, Jena D-07745, Germany
| | - Rayko Halitschke
- Mass Spectrometry and Metabolomics, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, Jena D-07745, Germany
| | - Sarah E O'Connor
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, Jena D-07745, Germany
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Liu Y, Ma X, Mao F, Qiu J, Bi J, Li X, Gu X, Zheng Y, Zhao Y. HMGR and CHS gene cloning, characterizations and tissue-specific expressions in Polygala tenuifolia Willd. PLoS One 2024; 19:e0300895. [PMID: 38527035 PMCID: PMC10962832 DOI: 10.1371/journal.pone.0300895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 03/03/2024] [Indexed: 03/27/2024] Open
Abstract
Triterpenoid saponins and flavonoids have several pharmacological activities against P. tenuifolia. The 3-hydroxy-3-methylglutaryl-CoA reductase (HMGR) and chalcone synthase (CHS) are the rate-limiting enzymes of triterpenoid saponin and flavonoid biosynthesis, respectively. In this study, HMGR and CHS genes were cloned from P. tenuifolia, and their bioinformatics analyses and tissue-specific expression were investigated. The results showed that the HMGR and CHS genes were successfully cloned, separately named the PtHMGR gene (NCBI accession: MK424118) and PtCHS gene (NCBI accession: MK424117). The PtHMGR gene is 2323 bp long, has an open reading frame (ORF) of 1782 bp, and encods 593 amino acids. The PtCHS gene is 1633 bp long with an ORF of 1170 bp, encoding 389 amino acids. PtHMGR and PtCHS were both hydrophobic, not signal peptides or secreted proteins, containing 10 conserved motifs. PtHMGR and PtCHS separately showed high homology with HMGR and CHS proteins from other species, and their secondary structures mainly included α-helix and random curl. The tertiary structure of PtHMGR was highly similarity to that the template 7ULI in RCSB PDB with 92.0% coverage rate. The HMG-CoA-binding domain of PtHMGR is located at 173-572 amino acid residues, including five bound sites. The tertiary structure of PtCHS showed high consistency with the template 1I86 in RCSB PDB with 100% coverage rate, contained malonyl CoA and 4-coumaroyl-CoA linkers. The expression of PtHMGR and PtCHS is tissue-specific. PtHMGR transcripts were mainly accumulated in roots, followed by leaves, and least in stems, and were significantly positively correlated with the contents of total saponin and tenuifolin. PtCHS was highly expressed in the stems, followed by the leaves, with low expression in the roots. PtCHS transcripts showed a significant positive correlation with total flavonoids content, however, they were significantly negatively correlated with the content of polygalaxanthone III (a type of flavonoids). This study provided insight for further revealing the roles of PtHMGR and PtCHS.
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Affiliation(s)
- Yang Liu
- College of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei Province, China
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Shijiazhuang, Hebei Province, China
- International Joint Research Center on Resource Utilization and Quality Evaluation of Traditional Chinese Medicine of Hebei Province, Shijiazhuang, Hebei Province, China
| | - Xiaofang Ma
- Yinchuan Women and Children Health Care Hospital, Yinchuan, Ningxia, China
| | - Fuying Mao
- Experimental Center, Hebei University of Chinese Medicine, Shijiazhuang, Hebei Province, China
| | - Jinmiao Qiu
- College of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei Province, China
| | - Jingyi Bi
- College of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei Province, China
| | - Xiaowei Li
- College of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei Province, China
| | - Xian Gu
- College of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei Province, China
| | - Yuguang Zheng
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Shijiazhuang, Hebei Province, China
- Hebei Chemical and Pharmaceutical College, Shijiazhuang, Hebei Province, China
| | - Yunsheng Zhao
- College of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei Province, China
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Shijiazhuang, Hebei Province, China
- International Joint Research Center on Resource Utilization and Quality Evaluation of Traditional Chinese Medicine of Hebei Province, Shijiazhuang, Hebei Province, China
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Gallon ME, Silva-Junior EA, Gobbo-Neto L. GC-MS-based Metabolomics Unravels Metabolites across Larval Development and Diapause of a Specialist Insect. Chem Biodivers 2024; 21:e202301779. [PMID: 38426669 DOI: 10.1002/cbdv.202301779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 02/15/2024] [Indexed: 03/02/2024]
Abstract
Plant-insect interactions are a driving force into ecosystem evolution and community dynamics. Many insect herbivores enter diapause, a developmental arrest stage in anticipation of adverse conditions, to survive and thrive through seasonal changes. Herein, we investigated the roles of medium- to non-polar metabolites during larval development and diapause in a specialist insect herbivore, Chlosyne lacinia, reared on Aldama robusta leaves. Varying metabolites were determined using gas chromatography-mass spectrometry (GC-MS)-based metabolomics. Sesquiterpenes and steroids were the main metabolites putatively identified in A. robusta leaves, whereas C. lacinia caterpillars were characterized by triterpenes, steroids, fatty acids, and long-chain alkanes. We found out that C. lacinia caterpillars biosynthesized most of the identified steroids and fatty acids from plant-derived ingested metabolites, as well as all triterpenes and long-chain alkanes. Steroids, fatty acids, and long-chain alkanes were detected across all C. lacinia instars and in diapausing caterpillars. Sesquiterpenes and triterpenes were also detected across larval development, yet they were not detected in diapausing caterpillars, which suggested that these metabolites were converted to other molecules prior to the diapause stage. Our findings shed light on the chemical content variation across C. lacinia development and diapause, providing insights into the roles of metabolites in plant-insect interactions.
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Affiliation(s)
- Marília Elias Gallon
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos, Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. do Café s/n, Ribeirão Preto, SP, 14040-903, Brazil
| | | | - Leonardo Gobbo-Neto
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos, Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. do Café s/n, Ribeirão Preto, SP, 14040-903, Brazil
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Mishra B, Bansal S, Tripathi S, Mishra S, Yadav RK, Sangwan NS. Differential regulation of key triterpene synthase gene under abiotic stress in Withania somnifera L. Dunal and its co-relation to sterols and withanolides. Plant Physiol Biochem 2024; 208:108419. [PMID: 38377888 DOI: 10.1016/j.plaphy.2024.108419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 01/30/2024] [Accepted: 02/02/2024] [Indexed: 02/22/2024]
Abstract
Withania somnifera (Ashwagandha), is one of the most reputed Indian medicinal plants, having immense pharmacological activities due to the occurrence of withanolides. The withanolides are biosynthesized through triterpenoid biosynthetic pathway with the involvement of WsCAS leading to cyclization of 2, 3 oxidosqualene, which is a key metabolite to further diversify to a myriad of phytochemicals. In contrast to the available reports on the studies of WsCAS in withanolide biosynthesis, its involvement in phytosterol biosynthesis needs investigation. Present work deals with the understanding of role of WsCAS triterpenoid synthase gene in the regulation of biosynthesis of phytosterols & withanolides. Docking studies of WsCAS protein revealed Conserved amino acids, DCATE motif, and QW motif which are involved in efficient substrate binding, structure stabilization, and catalytic activity. Overexpression/silencing of WsCAS leading to increment/decline of phytosterols confers its stringent regulation in phytosterols biosynthesis. Differential regulation of WsCAS on the metabolic flux towards phytosterols and withanolide biosynthesis was observed under abiotic stress conditions. The preferential channelization of 2, 3 oxidosqualene towards withanolides and/or phytosterols occurred under heat/salt stress and cold/water stress, respectively. Stigmasterol and β-sitosterol showed major contribution in high/low temperature and salt stress, and campesterol in water stress management. Overexpression of WsCAS in Arabidopsis thaliana led to the increment in phytosterols in general. Thus, the WsCAS plays important regulatory role in the biosynthetic pathway of phytosterols and withanolides under abiotic stress conditions.
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Affiliation(s)
- Bhawana Mishra
- CSIR-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Department of Metabolic and Structural Biology, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR) (An Institution of National Importance by an Act of Parliament), AcSIR Campus, CSIR-HRDC, Sector-19, Kamla Nehru Nagar, Ghaziabad, Ghaziabad, 201002, Uttar Pradesh, India
| | - Shilpi Bansal
- CSIR-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Department of Metabolic and Structural Biology, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR) (An Institution of National Importance by an Act of Parliament), AcSIR Campus, CSIR-HRDC, Sector-19, Kamla Nehru Nagar, Ghaziabad, Ghaziabad, 201002, Uttar Pradesh, India
| | - Sandhya Tripathi
- CSIR-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Department of Metabolic and Structural Biology, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR) (An Institution of National Importance by an Act of Parliament), AcSIR Campus, CSIR-HRDC, Sector-19, Kamla Nehru Nagar, Ghaziabad, Ghaziabad, 201002, Uttar Pradesh, India
| | - Smrati Mishra
- CSIR-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Department of Metabolic and Structural Biology, Uttar Pradesh, India
| | - Ritesh K Yadav
- CSIR-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Department of Metabolic and Structural Biology, Uttar Pradesh, India
| | - Neelam S Sangwan
- CSIR-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Department of Metabolic and Structural Biology, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR) (An Institution of National Importance by an Act of Parliament), AcSIR Campus, CSIR-HRDC, Sector-19, Kamla Nehru Nagar, Ghaziabad, Ghaziabad, 201002, Uttar Pradesh, India; School of Interdisciplinary and Applied Sciences, Department of Biochemistry, Central University of Haryana, Mahendergarh, Haryana 123031, India.
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Zhang J, Lu M, Li C, Yan B, Xu F, Wang H, Zhang Y, Yang Y. Astragaloside IV mitigates hypoxia-induced cardiac hypertrophy through calpain-1-mediated mTOR activation. Phytomedicine 2024; 125:155250. [PMID: 38295664 DOI: 10.1016/j.phymed.2023.155250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 11/22/2023] [Accepted: 11/25/2023] [Indexed: 02/13/2024]
Abstract
BACKGROUND Astragaloside IV (AsIV), a key functioning element of Astragalus membranaceus, has been recognized for its potential cardiovascular protective properties. However, there is a need to elucidate the impacts of AsIV on myocardial hypertrophy under hypoxia conditions and its root mechanisms. PURPOSE This study scrutinized the influence of AsIV on cardiac injury under hypoxia, with particular emphasis on the role of calpain-1 (CAPN1) in mediating mTOR pathways. METHODS Hypoxia-triggered cardiac hypertrophy was examined in vivo with CAPN1 knockout and wild-type C57BL/6 mice and in vitro with H9C2 cells. The impacts of AsIV, 3-methyladenine, and CAPN1 inhibition on hypertrophy, autophagy, apoptosis, [Ca2+]i, and CAPN1 and mTOR levels in cardiac tissues and H9C2 cells were investigated. RESULTS Both AsIV treatment and CAPN1 knockout mitigated hypoxia-induced cardiac hypertrophy, autophagy, and apoptosis in mice and H9C2 cells. Moreover, AsIV, 3-methyladenine, and CAPN1 inhibition augmented p-mTOR level but reduced [Ca2+]i and CAPN1 level. Additionally, lentivirus-mediated CAPN1 overexpression in H9C2 cells exacerbated myocardial hypertrophy, apoptosis, and p-mTOR inhibition under hypoxia. Specifically, AsIV treatment reversed the impacts of increased CAPN1 expression on cardiac injury and the inhibition of p-mTOR. CONCLUSION These findings suggest that AsIV may alleviate cardiac hypertrophy under hypoxia by attenuating apoptosis and autophagy through CAPN1-mediated mTOR activation.
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Affiliation(s)
- Jingliang Zhang
- Internal Medicine-Cardiovascular Department, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Meili Lu
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou, China
| | - Cong Li
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou, China
| | - Bingju Yan
- Internal Medicine-Cardiovascular Department, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Fang Xu
- Department of Pharmacy, The Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Hongxin Wang
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou, China.
| | - Yingjie Zhang
- Internal Medicine-Cardiovascular Department, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.
| | - Yuhong Yang
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou, China.
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10
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Lu Y, Liu Y, Zhang Y, Gao H, Chen X, Tu L, Luo Y, Jiang Z, Yin Y, Zhou J, Hu T, Wu X, Wang J, Gao W, Huang L. Characterization of the Cytochrome P450 CYP716C52 in Celastrol Biosynthesis and Its Applications in Engineered Saccharomyces cerevisiae. J Nat Prod 2024; 87:176-185. [PMID: 38277488 DOI: 10.1021/acs.jnatprod.3c00674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
Celastrol is a bioactive pentacyclic triterpenoid with promising therapeutic effects that is mainly distributed in Celastraceae plants. Although some enzymes involved in the celastrol biosynthesis pathway have been reported, many biosynthetic steps remain unknown. Herein, transcriptomics and metabolic profiles of multiple species in Celastraceae were integrated to screen for cytochrome P450s (CYPs) that are closely related to celastrol biosynthesis. The CYP716 enzyme, TwCYP716C52, was found to be able to oxidize the C-2 position of polpunonic acid, a precursor of celastrol, to form the wilforic acid C. RNAi-mediated repression of TwCYP716C52 in Tripterygium wilfordii suspension cells further confirmed its involvement in celastrol biosynthesis. The C-2 catalytic mechanisms of TwCYP716C52 were further explored by using molecular docking and site-directed mutagenesis experiments. Moreover, a modular optimization strategy was used to construct an engineered yeast to produce wilforic acid C at a titer of 5.8 mg·L-1. This study elucidates the celastrol biosynthetic pathway and provides important functional genes and sufficient precursors for further enzyme discovery.
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Affiliation(s)
- Yun Lu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
- Chengdu Second People's Hospital, Chengdu 610017, China
| | - Yuan Liu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - 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 100050, China
| | - Haiyun Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Xiaochao Chen
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Lichan Tu
- School of Medicine, Zhejiang University City College, Hangzhou 310027, China
| | - Yunfeng Luo
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Zhouqian Jiang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Yan Yin
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jiawei Zhou
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310027, China
| | - Tianyuan Hu
- School of Pharmacy, College of Medicine, Hangzhou Normal University, Hangzhou 310027, China
| | - Xiaoyi Wu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Jiadian Wang
- 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
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100050, China
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11
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Huang Y, Shi Y, Hu X, Zhang X, Wang X, Liu S, He G, An K, Guan F, Zheng Y, Wang X, Wei S. PnNAC2 promotes the biosynthesis of Panax notoginseng saponins and induces early flowering. Plant Cell Rep 2024; 43:73. [PMID: 38379012 DOI: 10.1007/s00299-024-03152-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 01/05/2024] [Indexed: 02/22/2024]
Abstract
KEY MESSAGE PnNAC2 positively regulates saponin biosynthesis by binding the promoters of key biosynthetic genes, including PnSS, PnSE, and PnDS. PnNAC2 accelerates flowering through directly associating with the promoters of FT genes. NAC transcription factors play an important regulatory role in both terpenoid biosynthesis and flowering. Saponins with multiple pharmacological activities are recognized as the major active components of Panax notoginseng. The P. notoginseng flower is crucial for growth and used for medicinal and food purposes. However, the precise function of the P. notoginseng NAC transcription factor in the regulation of saponin biosynthesis and flowering remains largely unknown. Here, we conducted a comprehensive characterization of a specific NAC transcription factor, designated as PnNAC2, from P. notoginseng. PnNAC2 was identified as a nuclear-localized protein with transcription activator activity. The expression profile of PnNAC2 across various tissues mirrored the accumulation pattern of total saponins. Knockdown experiments of PnNAC2 in P. notoginseng calli revealed a significant reduction in saponin content and the expression level of pivotal saponin biosynthetic genes, including PnSS, PnSE, and PnDS. Subsequently, Y1H assays, dual-LUC assays, and electrophoretic mobility shift assays (EMSAs) demonstrated that PnNAC2 exhibits binding affinity to the promoters of PnSS, PnSE and PnDS, thereby activating their transcription. Additionally, an overexpression assay of PnNAC2 in Arabidopsis thaliana witnessed the acceleration of flowering and the induction of the FLOWERING LOCUS T (FT) gene expression. Furthermore, PnNAC2 demonstrated the ability to bind to the promoters of AtFT and PnFT genes, further activating their transcription. In summary, these results revealed that PnNAC2 acts as a multifunctional regulator, intricately involved in the modulation of triterpenoid saponin biosynthesis and flowering processes.
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Affiliation(s)
- Yuying Huang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China
| | - Yue Shi
- School of Life and Science, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China
| | - Xiuhua Hu
- School of Life and Science, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China
| | - Xiaoqin Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China
| | - Xin Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China
| | - Shanhu Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China
| | - Gaojie He
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China
| | - Kelu An
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China
| | - Fanyuan Guan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China
| | - Yuyan Zheng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China
| | - Xiaohui Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China.
- Modern Research Center for Traditional Chinese Medicine, Beijing Institute of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China.
- Engineering Research Center of Good Agricultural Practice for Chinese Crude Drugs, Ministry of Education, Beijing, 102488, People's Republic of China.
| | - Shengli Wei
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China.
- Engineering Research Center of Good Agricultural Practice for Chinese Crude Drugs, Ministry of Education, Beijing, 102488, People's Republic of China.
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12
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Chiyo N, Seki H, Kanamoto T, Ueda H, Kojoma M, Muranaka T. Glycyrrhizin Production in Licorice Hairy Roots Based on Metabolic Redirection of Triterpenoid Biosynthetic Pathway by Genome Editing. Plant Cell Physiol 2024; 65:185-198. [PMID: 38153756 PMCID: PMC10873519 DOI: 10.1093/pcp/pcad161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/15/2023] [Accepted: 12/24/2023] [Indexed: 12/29/2023]
Abstract
Glycyrrhizin, a type of the triterpenoid saponin, is a major active ingredient contained in the roots of the medicinal plant licorice (Glycyrrhiza uralensis, G. glabra and G. inflata), and is used worldwide in diverse applications, such as herbal medicines and sweeteners. The growing demand for licorice threatens wild resources and therefore a sustainable method of supplying glycyrrhizin is required. With the goal of establishing an alternative glycyrrhizin supply method not dependent on wild plants, we attempted to produce glycyrrhizin using hairy root culture. We tried to promote glycyrrhizin production by blocking competing pathways using CRISPR/Cas9-based gene editing. CYP93E3 CYP72A566 double-knockout (KO) and CYP93E3 CYP72A566 CYP716A179 LUS1 quadruple-KO variants were generated, and a substantial amount of glycyrrhizin accumulation was confirmed in both types of hairy root. Furthermore, we evaluated the potential for promoting further glycyrrhizin production by simultaneous CYP93E3 CYP72A566 double-KO and CYP88D6-overexpression. This strategy resulted in a 3-fold increase (∼1.4 mg/g) in glycyrrhizin accumulation in double-KO/CYP88D6-overexpression hairy roots, on average, compared with that of double-KO hairy roots. These findings demonstrate that the combination of blocking competing pathways and overexpression of the biosynthetic gene is important for enhancing glycyrrhizin production in G. uralensis hairy roots. Our findings provide the foundation for sustainable glycyrrhizin production using hairy root culture. Given the widespread use of genome editing technology in hairy roots, this combined with gene knockout and overexpression could be widely applied to the production of valuable substances contained in various plant roots.
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Affiliation(s)
- Naoki Chiyo
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, 565-0871 Japan
| | - Hikaru Seki
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, 565-0871 Japan
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, 230-0045 Japan
- Institution for Open and Transdisciplinary Research Initiatives, Osaka University, 2-1 Yamadaoka, Suita, 565-0871 Japan
| | - Takuya Kanamoto
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, 565-0871 Japan
| | - Hiroshi Ueda
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, 565-0871 Japan
| | - Mareshige Kojoma
- School of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Tobetsu-cho, Ishikari-gun, 061-0293 Japan
| | - Toshiya Muranaka
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, 565-0871 Japan
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, 230-0045 Japan
- Institution for Open and Transdisciplinary Research Initiatives, Osaka University, 2-1 Yamadaoka, Suita, 565-0871 Japan
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13
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Huang Y, Liu H, Zhou Y, Lu Z, Pu Y, Zhang H. Cloning and functional characterization of the oxidative squalene cyclase gene in the deep-sea holothurian Chiridota sp. Gene 2024; 894:147971. [PMID: 37949417 DOI: 10.1016/j.gene.2023.147971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/10/2023] [Accepted: 11/06/2023] [Indexed: 11/12/2023]
Abstract
Saponins derived from holothurians have high potential medicinal value. However, the de novo synthesis of the derivatization of triterpenes is still unclear. Oxidative squalene cyclase (OSC) can catalyze 2,3-Oxidosqualene into diverse products that serve as important precursors for triterpene synthesis. However, the function of theOSCgene in Chiridotasp. hasnot been elucidated. In this study, an OSCgenederived from the deep-sea holothurianChiridota sp. was cloned and characterized functionally in a yeast system. The open reading frame of the OSC gene was 2086 bp, which encoded 695 amino acids. The Chiridota sp. OSC gene has a similarity of 66.89 % to the OSC of other holothurian species and 63.51 % to that of Acanthaster planci. The phylogenetic tree showed that the echinozoan OSCsclustered together, and then they formeda sister group to fungi and plant homologs. Chiridota sp. OSC catalyzed 2,3-Oxidosqualene into parkeol.Under high pressure, the relative enzymatic activity and stability of cyclase inChiridota sp. was higher than that in the shallow-sea holothurianStichopus horrens. The newly cloned OSC of Chiridota sp.provideskey information for the interpretation of the saponin synthesis pathway in deep-sea holothurians.
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Affiliation(s)
- Yanan Huang
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Helu Liu
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China
| | - Yang Zhou
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China
| | - Zaiqing Lu
- Ocean University of China, Qingdao 266100, China
| | - Yujin Pu
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haibin Zhang
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China.
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14
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Liu Z, Huang M, Chen H, Lu X, Tian Y, Hu P, Zhao Q, Li P, Li C, Ji X, Liu H. Metabolic engineering of Yarrowia lipolytica for high-level production of squalene. Bioresour Technol 2024; 394:130233. [PMID: 38141883 DOI: 10.1016/j.biortech.2023.130233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 12/25/2023]
Abstract
Squalene is an important triterpene with a wide range of applications. Given the growing market demand for squalene, the development of microbial cell factories capable of squalene production is considered a sustainable method. This study aimed to investigate the squalene production potential of Yarrowia lipolytica. First, HMG-CoA reductase from Saccharomyces cerevisiae and squalene synthase from Y. lipolytica was co-overexpressed in Y. lipolytica. Second, by enhancing the supply of NADPH in the squalene synthesis pathway, the production of squalene in Y. lipolytica was effectively increased. Furthermore, by constructing an isoprenol utilization pathway and overexpressing YlDGA1, the strain YLSQ9, capable of producing 868.1 mg/L squalene, was obtained. Finally, by optimizing the fermentation conditions, the highest squalene concentration of 1628.2 mg/L (81.0 mg/g DCW) in Y. lipolytica to date was achieved. This study demonstrated the potential for achieving high squalene production using Y. lipolytica.
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Affiliation(s)
- Ziying Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Mingkang Huang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Hong Chen
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Xiangyang Lu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Yun Tian
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, China; State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha, Hunan 410004, China
| | - Pengcheng Hu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Qiaoqin Zhao
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Peiwang Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha, Hunan 410004, China
| | - Changzhu Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha, Hunan 410004, China
| | - Xiaojun Ji
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Huhu Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, China.
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15
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Liu Y, Zhou J, Liu P, Hu T, Liu X, Gao J, Ma L, Lu Y, Li D, Jiang Z, Zhang X, Huang L, Gao W, Wu X, Zhang Y, Liu C. Gene identification and semisynthesis of the anti-inflammatory oleanane-type triterpenoid wilforlide A. New Phytol 2024; 241:1720-1731. [PMID: 38013483 DOI: 10.1111/nph.19427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/05/2023] [Indexed: 11/29/2023]
Abstract
Wilforlide A is one of the main active constituents produced in trace amounts in Tripterygium wilfordii Hook F, which has excellent anti-inflammatory and immune suppressive effects. Despite the seeming structural simplicity of the compound, the biosynthetic pathway of wilforlide A remains unknown. Gene-specific expression analysis and genome mining were used to identify the gene candidates, and their functions were studied in vitro and in vivo. A modularized two-step (M2S) technique and CRISPR-Cas9 methods were used to construct engineering yeast. Here, we identified a cytochrome P450, TwCYP82AS1, that catalyses C-22 hydroxylation during wilforlide A biosynthesis. We also found that TwCYP712K1 to K3 can further oxidize the C-29 carboxylation of oleanane-type triterpenes in addition to friedelane-type triterpenes. Reconstitution of the biosynthetic pathway in engineered yeast increased the precursor supply, and combining TwCYP82AS1 and TwCYP712Ks produced abrusgenic acid, which was briefly acidified to achieve the semisynthesis of wilforlide A. Our work presents an alternative metabolic engineering approach for obtaining wilforlide A without relying on extraction from plants.
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Affiliation(s)
- Yuan Liu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- National Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jiawei Zhou
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Panting Liu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Tianyuan Hu
- School of Pharmacy, College of Medicine, Hangzhou Normal University, Hangzhou, 311121, China
| | - Xuan Liu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Jie Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Lin Ma
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Yun Lu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Dan Li
- School of Pharmaceutical Science, Capital Medical University, Beijing, 100069, China
| | - Zhouqian Jiang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Xianan Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Luqi Huang
- National Key Laboratory for Quality Ensurance and Sustainable Use 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
| | - Xiaoyi Wu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Yifeng Zhang
- National Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Changli Liu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
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16
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Hao J, Zhou J, Hu S, Zhang P, Wu H, Yang J, Zhao B, Liu H, Lin H, Chi J, Lou D. RTA 408 ameliorates diabetic cardiomyopathy by activating Nrf2 to regulate mitochondrial fission and fusion and inhibiting NF-κB-mediated inflammation. Am J Physiol Cell Physiol 2024; 326:C331-C347. [PMID: 38047307 DOI: 10.1152/ajpcell.00467.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/28/2023] [Accepted: 11/28/2023] [Indexed: 12/05/2023]
Abstract
Diabetic cardiomyopathy (dCM) is a major complication of diabetes; however, specific treatments for dCM are currently lacking. RTA 408, a semisynthetic triterpenoid, has shown therapeutic potential against various diseases by activating the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway. We established in vitro and in vivo models using high glucose toxicity and db/db mice, respectively, to simulate dCM. Our results demonstrated that RTA 408 activated Nrf2 and alleviated various dCM-related cardiac dysfunctions, both in vivo and in vitro. Additionally, it was found that silencing the Nrf2 gene eliminated the cardioprotective effect of RTA 408. RTA 408 ameliorated oxidative stress in dCM mice and high glucose-exposed H9C2 cells by activating Nrf2, inhibiting mitochondrial fission, exerting anti-inflammatory effects through the Nrf2/NF-κB axis, and ultimately suppressing apoptosis, thereby providing cardiac protection against dCM. These findings provide valuable insights for potential dCM treatments.NEW & NOTEWORTHY We demonstrated first that the nuclear factor erythroid 2-related factor 2 (Nrf2) activator RTA 408 has a protective effect against diabetic cardiomyopathy. We found that RTA 408 could stimulate the nuclear entry of Nrf2 protein, regulate the mitochondrial fission-fusion balance, and redistribute p65, which significantly alleviated the oxidative stress level in cardiomyocytes, thereby reducing apoptosis and inflammation, and protecting the systolic and diastolic functions of the heart.
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Affiliation(s)
- Jinjin Hao
- Department of Endocrinology, Shaoxing People's Hospital, Shaoxing, China
| | - Jiedong Zhou
- College of Medicine, Shaoxing University, Shaoxing, China
| | - Songqing Hu
- Zhejiang University School of Medicine, Hangzhou, China
| | - Peipei Zhang
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Haowei Wu
- Zhejiang University School of Medicine, Hangzhou, China
| | - Juntao Yang
- College of Medicine, Shaoxing University, Shaoxing, China
| | - Bingjie Zhao
- College of Medicine, Shaoxing University, Shaoxing, China
| | - Hanxuan Liu
- College of Medicine, Shaoxing University, Shaoxing, China
| | - Hui Lin
- The Affiliated Lihuili Hospital of Ningbo University, Ningbo, China
| | - Jufang Chi
- Department of Cardiology, Zhuji People's Hospital, Shaoxing, China
| | - Dajun Lou
- Department of Endocrinology, Shaoxing People's Hospital, Shaoxing, China
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17
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Liu XL, Xie J, Xie ZN, Zhong C, Liu H, Zhang SH, Jin J. Identification of squalene epoxidase in triterpenes biosynthesis in Poria cocos by molecular docking and CRISPR-Cas9 gene editing. Microb Cell Fact 2024; 23:34. [PMID: 38273342 PMCID: PMC10809676 DOI: 10.1186/s12934-024-02306-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 01/14/2024] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND Squalene epoxidase is one of the rate-limiting enzymes in the biosynthetic pathway of membrane sterols and triterpenoids. The enzyme catalyzes the formation of oxidized squalene, which is a common precursor of sterols and triterpenoids. RESULT In this study, the squalene epoxidase gene (PcSE) was evaluated in Poria cocos. Molecular docking between PcSE and squalene was performed and the active amino acids were identified. The sgRNA were designed based on the active site residues. The effect on triterpene synthesis in P. cocos was consistent with the results from ultra-high-performance liquid chromatography-quadruplex time-of-flight-double mass spectrometry (UHPLC-QTOF-MS/MS) analysis. The results showed that deletion of PcSE inhibited triterpene synthesis. In vivo verification of PcSE function was performed using a PEG-mediated protoplast transformation approach. CONCLUSION The findings from this study provide a foundation for further studies on heterologous biosynthesis of P. cocos secondary metabolites.
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Affiliation(s)
- Xiao-Liu Liu
- Institute of Chinese Medicine Resources, Hunan Academy of Chinese Medicine, Changsha, 410013, China
- Hunan Academy of Chinese Medicine, Hunan University of Traditional Chinese Medicine, Changsha, 410208, China
| | - Jing Xie
- Institute of Chinese Medicine Resources, Hunan Academy of Chinese Medicine, Changsha, 410013, China
- Hunan Academy of Chinese Medicine, Hunan University of Traditional Chinese Medicine, Changsha, 410208, China
| | - Zhen-Ni Xie
- Institute of Chinese Medicine Resources, Hunan Academy of Chinese Medicine, Changsha, 410013, China
- Hunan Academy of Chinese Medicine, Hunan University of Traditional Chinese Medicine, Changsha, 410208, China
| | - Can Zhong
- Institute of Chinese Medicine Resources, Hunan Academy of Chinese Medicine, Changsha, 410013, China
| | - Hao Liu
- Institute of Chinese Medicine Resources, Hunan Academy of Chinese Medicine, Changsha, 410013, China.
| | - Shui-Han Zhang
- Institute of Chinese Medicine Resources, Hunan Academy of Chinese Medicine, Changsha, 410013, China
- Hunan Academy of Chinese Medicine, Hunan University of Traditional Chinese Medicine, Changsha, 410208, China
| | - Jian Jin
- Institute of Chinese Medicine Resources, Hunan Academy of Chinese Medicine, Changsha, 410013, China.
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18
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Zhou Q, Sun P, Xiong HM, Xie J, Zhu GY, Tantillo DJ, Huang AC. Insight into neofunctionalization of 2,3-oxidosqualene cyclases in B,C-ring-opened triterpene biosynthesis in quinoa. New Phytol 2024; 241:764-778. [PMID: 37904576 DOI: 10.1111/nph.19345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 10/04/2023] [Indexed: 11/01/2023]
Abstract
Bioactive triterpenes feature complex fused-ring structures, primarily shaped by the first-committed enzyme, 2,3-oxidosqualene cyclases (OSCs) in plant triterpene biosynthesis. Triterpenes with B,C-ring-opened skeletons are extremely rare with unknown formation mechanisms, harbouring unchartered chemistry and biology. Here, through mining the genome of Chenopodium quinoa followed by functional characterization, we identified a stress-responsive and neofunctionalized OSC capable of generating B,C-ring-opened triterpenes, including camelliol A and B and the novel (-)-quinoxide A as wax components of the specialized epidermal bladder cells, namely the quinoxide synthase (CqQS). Protein structure analysis followed by site-directed mutagenesis identified key variable amino acid sites underlying functional interconversion between pentacyclic β-amyrin synthase (CqbAS1) and B,C-ring-opened triterpene synthase CqQS. Mutation of one key residue (N612K) in even evolutionarily distant Arabidopsis β-amyrin synthase could generate quinoxides, indicating a conserved mechanism for B,C-ring-opened triterpene formation in plants. Quantum computation combined with docking experiments further suggests that conformations of conserved W613 and F413 of CqQS might be key to selectively stabilizing intermediate carbocations towards B,C-ring-opened triterpene formation. Our findings shed light on quinoa triterpene skeletal diversity and mechanisms underlying B,C-ring-opened triterpene biosynthesis, opening avenues towards accessing their chemistry and biology and paving the way for quinoa trait engineering and quality improvement.
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Affiliation(s)
- Qian Zhou
- Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, SUSTech-PKU Institute of Plant and Food Science, Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Peng Sun
- Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, SUSTech-PKU Institute of Plant and Food Science, Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Hao-Ming Xiong
- State Key Laboratory of Quality Research in Chinese Medicine, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, 999078, China
| | - Jiali Xie
- Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, SUSTech-PKU Institute of Plant and Food Science, Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Guo-Yuan Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, 999078, China
| | - Dean J Tantillo
- Department of Chemistry, University of California, Davis, CA, 95616, USA
| | - Ancheng C Huang
- Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, SUSTech-PKU Institute of Plant and Food Science, Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
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Liu D, Ding J, Li Z, Lu Y. Pachymic acid (PA) inhibits ferroptosis of cardiomyocytes via activation of the AMPK in mice with ischemia/reperfusion-induced myocardial injury. Cell Biol Int 2024; 48:46-59. [PMID: 37750505 DOI: 10.1002/cbin.12090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/02/2023] [Accepted: 09/02/2023] [Indexed: 09/27/2023]
Abstract
Pachymic acid (PA) is a lanostane-type triterpenoid with various pharmacological effects. However, little is known about the effect of PA on myocardial infarction (MI) induced by ischemia/reperfusion (I/R). In this study, we aimed to investigate the protective effect of PA and its underlying mechanism. A cellular MI model was established by oxygen-glucose deprivation and reperfusion (OGD/R) treatment in HL-1 cardiomyocytes, and we found that OGD/R treatment decreased cell viability and glutathione peroxide (GSH-Px) activity, increased Fe2+ concentration and lactate dehydrogenase (LDH) activity, promoted malondialdehyde (MDA) and reactive oxygen species (ROS) production, and inhibited the expression of ferroptosis marker proteins SLC7A11 and GPX4 in a time-dependent manner. OGD/R-induced HL-1 cells were pretreated with different concentrations of PA (0, 20, 40, 60 μg/mL) for 24 h, and toxicological experiments showed that 150 μg/mL PA decreased cell viability, while low concentrations of PA had no toxic effect on cells. 20 μg/mL PA reversed the inhibitory effect of OGD/R on cell viability, reduced MDA and ROS production, and Fe2+ accumulation, increased GSH-Px activity and the expression of SLC7A11 and GPX4, and decreased LDH activity, especially at 60 μg/mL PA. Meanwhile, PA promoted the phosphorylation of IRS-1, AKT, and AMPK proteins in a dose-dependent manner. AICAR, an AMPK activator, inhibited ferroptosis, while STO-609, an AMPK inhibitor, largely abolished the effect of PA on OGD/R-induced ferroptosis of HL-1 cells. In addition, PA inhibited ferroptosis and myocardial I/R injury in wild-type mice and AMPK knockout (AMPK-/- ) mice. Collectively, PA inhibited ferroptosis of cardiomyocytes through activating of the AMPK pathway, thereby alleviating myocardial I/R injury in mice.
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Affiliation(s)
- Dongmin Liu
- Cardiovascular Department I, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, China
| | - Jiru Ding
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhenzhen Li
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Youquan Lu
- Shaanxi University of Chinese Medicine, Xianyang, China
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Sakanishi M, Chung SY, Fujiwara K, Kojoma M, Muranaka T, Seki H. Disruption of a licorice cellulose synthase-derived glycosyltransferase gene demonstrates its in planta role in soyasaponin biosynthesis. Plant Cell Rep 2023; 43:15. [PMID: 38135741 PMCID: PMC10746781 DOI: 10.1007/s00299-023-03095-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 11/17/2023] [Indexed: 12/24/2023]
Abstract
KEY MESSAGE CRISPR-Cas9-mediated disruption of a licorice cellulose synthase-derived glycosyltransferase gene, GuCSyGT, demonstrated the in planta role of GuCSyGT as the enzyme catalyzing 3-O-glucuronosylation of triterpenoid aglycones in soyasaponin biosynthesis. Triterpenoid glycosides (saponins) are a large, structurally diverse group of specialized metabolites in plants, including the sweet saponin glycyrrhizin produced by licorice (Glycyrrhiza uralensis) and soyasaponins that occur widely in legumes, with various bioactivities. The triterpenoid saponin biosynthetic pathway involves the glycosylation of triterpenoid sapogenins (the non-sugar part of triterpenoid saponins) by glycosyltransferases (GTs), leading to diverse saponin structures. Previously, we identified a cellulose synthase-derived GT (CSyGT), as a newly discovered class of triterpenoid GT from G. uralensis. GuCSyGT expressed in yeast, which could transfer the sugar glucuronic acid to the C3 position of glycyrrhetinic acid and soyasapogenol B, which are the sapogenins of glycyrrhizin and soyasaponin I, respectively. This suggested that GuCSyGT is involved in the biosynthesis of glycyrrhizin and soyasaponin I. However, the in planta role of GuCSyGT in saponin biosynthesis remains unclear. In this study, we generated GuCSyGT-disrupted licorice hairy roots using CRISPR-Cas9-mediated genome editing and analyzed the saponin content. This revealed that soyasaponin I was completely absent in GuCSyGT-disrupted lines, demonstrating the in planta role of GuCSyGT in saponin biosynthesis.
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Affiliation(s)
- Manami Sakanishi
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Soo Yeon Chung
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kentaro Fujiwara
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Mareshige Kojoma
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, 1757, Kanazawa, Tobetsu, Hokkaido, 061-0293, Japan
| | - Toshiya Muranaka
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
- Industrial Biotechnology Initiative Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hikaru Seki
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
- Industrial Biotechnology Initiative Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
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21
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Mascuch SJ, Khatri Chhetri B, Mojib N, Kubanek J. Visualization of the chemical defense molecule formoside binding to sensory structures in a model fish predator. J Exp Biol 2023; 226:jeb246246. [PMID: 37975309 PMCID: PMC10753513 DOI: 10.1242/jeb.246246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 11/13/2023] [Indexed: 11/19/2023]
Abstract
Sensory perception of chemical threats coming from an organism's environment relies on the coordination of numerous receptors and cell types. In many cases, the physiological processes responsible for driving behavioral responses to chemical cues are poorly understood. Here, we investigated the physiological response of fish to an unpalatable compound, formoside, which is employed as a chemical defense by marine sponges. Construction of fluorescent probe derivatives of formoside allowed visualization of this chemical defense molecule in vivo, interacting with the cells and tissues of the early larvae of a model predator, the zebrafish (Danio rerio). This revealed the precise chemosensory structures targeted by formoside to be in the taste buds and olfactory epithelium of developing zebrafish. Mechanosensory neuromasts were also targeted. This study supports the involvement of a previously identified co-receptor in detection of the chemical defense and provides a springboard for the long-term goal of identification of the cellular receptor of formoside. Extension of this approach to other predators and chemical defenses may provide insight into common mechanisms of chemoreception by predators as well as common strategies of chemical defense employed by prey.
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Affiliation(s)
- Samantha J. Mascuch
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Bhuwan Khatri Chhetri
- School of Chemistry & Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Nazia Mojib
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
- Department of Biology, Spelman College, Atlanta, GA 30314, USA
| | - Julia Kubanek
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
- School of Chemistry & Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA
- Center for Microbial Dynamics and Infection, Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
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22
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Cui M, Zhao Y, Zhang X, Zhao W. Abscisic acid-mediated cytosolic Ca 2+ modulates triterpenoid accumulation of Ganoderma lucidum. J Zhejiang Univ Sci B 2023; 24:1174-1179. [PMID: 38057274 PMCID: PMC10710909 DOI: 10.1631/jzus.b2300279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 08/21/2023] [Indexed: 12/08/2023]
Abstract
Ganoderma lucidum is a mushroom widely used for its edible and medicinal properties. Primary bioactive constituents of G. lucidum are ganoderic triterpenoids (GTs), which exhibit important pharmacological activity. Abscisic acid (ABA), a plant hormone, is associated with plant growth, development, and stress responses. ABA can also affect the growth, metabolism, and physiological activities of different fungi and participates in the regulation of the tetracyclic triterpenes of some plants. Our findings indicated that ABA treatment promoted GT accumulation by regulating the gene expression levels (squalene synthase (sqs), 3-hydroxy-3-methylglutaryl-CoA reductase (hmgr), and lanosterol synthase (ls)), and also activated cytosolic Ca2+ channels. Furthermore, under ABA mediation, exogenous Ca2+ donors and inhibitors directly affected the cytosolic Ca2+ concentration and related gene expression in Ca2+ signaling. Our study also revealed that ABA-mediated cytosolic Ca2+ played a crucial regulatory role in GT biosynthesis, accompanied by antioxidant defense modulation with increasing superoxide dismutase (SOD) activity and ascorbate peroxidase (APX) activity, and the resistance ability of O2•- and glutathione (GSH) contents.
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Affiliation(s)
- Meilin Cui
- College of Food Science, Shanxi Normal University, Taiyuan 030031, China.
| | - Yitao Zhao
- College of Food Science, Shanxi Normal University, Taiyuan 030031, China
| | - Xiuhong Zhang
- College of Food Science, Shanxi Normal University, Taiyuan 030031, China
| | - Wei Zhao
- College of Food Science, Shanxi Normal University, Taiyuan 030031, China
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Shao S, Li R, Wang K, Xia W, Cui B, Li S. Ilexchinene, a new seco-ursane triterpenoid from the leaves of Ilex chinensis with therapeutic effect on neuroinflammation by attenuating the MAPK/NF-κB signaling pathway. Phytomedicine 2023; 121:155110. [PMID: 37776618 DOI: 10.1016/j.phymed.2023.155110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/15/2023] [Accepted: 09/19/2023] [Indexed: 10/02/2023]
Abstract
BACKGROUND Neuroinflammation is a vital factor participating in the whole pathogenetic process of diverse neurodegenerative disorders, but accessible clinical drugs are still insufficient due to their inefficacy and side effects. Triterpenoids are reported to possess potential anti-neuroinflammatory activities, and the leaves of Ilex chinensis are a commonly used herbal medicine containing many ursane-type and oleanane-type triterpenoids. However, the novel triterpenoids from I. chinensis and their underlying mechanisms are still elusive. PURPOSE To isolate novel seco-ursane triterpenoids with anti-neuroinflammatory effects from the leaves of I. chinensis and reveal their underlying mechanisms. STUDY DESIGN AND METHODS The novel compound was purified by column chromatography and identified by comprehensive spectroscopic experiments. The LPS-induced BV-2 cell model and LPS-induced acute murine brain inflammation model were used to assess the anti-neuroinflammatory effect of the structure and further understand its underlying mechanisms by cell viability, ELISA, Western blot analysis, qRT‒PCR analysis, behavior analysis, H&E staining, and immunofluorescence staining experiments. RESULTS Ilexchinene is a novel ursane-type triterpenoid with a rare 18,19-seco-ring skeleton that was first isolated and identified from I. chinensis. Ilexchinene evidently reduced the overexpression of inflammatory substances in vitro. A mechanistic study suggested that ilexchinene could decrease NF-κB activation to prevent the formation of the NLRP3 inflammasome in the early neuroinflammatory response; in addition, it could prevent the phosphorylation of ERK and JNK. In vivo, ilexchinene remarkably improved LPS-induced mouse behavioral deficits and diminished the number of overactivated microglial cells. Furthermore, ilexchinene evidently diminished the overexpression of inflammatory substances in mouse brains. A mechanistic study confirmed that ilexchinene markedly suppressed the MAPK/NF-κB pathway to relieve the neuroinflammatory response. CONCLUSION We identified a novel 18,19-seco-ursane triterpenoid from the leaves of I. chinensis and revealed its underlying mechanism of neuroinflammation for the first time. These findings suggest that ilexchinene might possess promising therapeutic effects in neuroinflammation.
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Affiliation(s)
- Siyuan Shao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Ruofei Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Kexin Wang
- Key Laboratory of Antibiotic Bioengineering, Ministry of Health, Laboratory of Oncology, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Wenqi Xia
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Baosong Cui
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Shuai Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
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Zhou C, Wang Y, Zhang Q, Zhou G, Ma X, Jiang X, Yu W. Acetyl-11-Keto-Beta-Boswellic Acid Activates the Nrf2/HO-1 Signaling Pathway in Schwann Cells to Reduce Oxidative Stress and Promote Sciatic Nerve Injury Repair. Planta Med 2023; 89:1468-1482. [PMID: 37541437 DOI: 10.1055/a-2148-7427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/06/2023]
Abstract
Boswellia is a traditional medicine for bruises and injuries. Its main active ingredient, acetyl-11-keto-beta-boswellic acid, has antioxidant and antiapoptotic effects. In this experiment, we used Sprague-Dawley rats to make a sciatic nerve injury model to detect the transcription factor NF-E2-related factor 2/heme oxygenase 1 signaling pathway and apoptosis, combined with clinical indicators, for testing whether acetyl-11-keto-beta-boswellic acid can reduce oxidative stress and promote sciatic nerve repair. Our results showed that acetyl-11-keto-beta-boswellic acid administration promoted myelin regeneration and functional recovery in the rat sciatic nerve, reduced lipid peroxidation levels, upregulated the expression of various antioxidant enzymes and enhanced enzyme activity, decreased the expression levels of apoptosis-related proteins, and promoted nuclear translocation of the transcription factor NF-E2-related factor 2 protein. In vitro studies revealed that acetyl-11-keto-beta-boswellic acid reduced H2O2-induced reactive oxygen species production, restored mitochondrial membrane potential, upregulated the expression of various antioxidant enzymes, and downregulated apoptosis-related indicators in Schwann cells, and these therapeutic effects of acetyl-11-keto-beta-boswellic acid were reversed after ML385 treatment in Schwann cells. In summary, acetyl-11-keto-beta-boswellic acid alleviates oxidative stress and apoptosis caused by sciatic nerve injury in rats by activating the transcription factor NF-E2-related factor 2/heme oxygenase 1 signaling pathway, promotes the recovery of sciatic nerve function in rats, and is a promising therapeutic agent to promote sciatic nerve repair by alleviating excessive oxidative stress.
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Affiliation(s)
- Chong Zhou
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang Province, China
| | - Yao Wang
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang Province, China
| | - Qiyuan Zhang
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang Province, China
| | - Guanghu Zhou
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang Province, China
| | - Xianglin Ma
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang Province, China
| | - Xiaowen Jiang
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang Province, China
| | - Wenhui Yu
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang Province, China
- Key Laboratory of Heilongjiang Education Department for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, Heilongjiang Province, China
- Institute of Chinese Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang Province, China
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25
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Jiang X, Yuan C, Ding R, Lu D, Peng X, Dong Z, Zhu C, Lin Y, Wu C, Xie Q. Toxic metabolites and metabolic soft spots of celastrol based on glutathione metabolic capture and high-resolution mass spectrometry. Expert Opin Drug Metab Toxicol 2023; 19:1023-1032. [PMID: 38145500 DOI: 10.1080/17425255.2023.2294042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 12/06/2023] [Indexed: 12/27/2023]
Abstract
BACKGROUND Celastrol is known as one of the most medicinally valuable compounds. However, the pharmaceutical application of celastrol is significantly limited due to high toxicity, while there are few reports on the mechanism of toxicity. METHODS This study searched for possible toxic metabolites through phase I in vitro metabolism and glutathione capture experiments. Then in vivo metabolism experiments in mice and rats were conducted to look for metabolites in vivo. Finally, mice in vivo toxicity experiment was conducted to verify the toxicity of different doses of celastrol to mice. RESULTS In the in vivo and in vitro metabolism experiments, we found 7 phase I metabolites in vitro, 9 glutathione conjugation metabolites in vitro, and 20 metabolites in vivo. The metabolic soft points of celastrol could be the quinone methyl structure at C3-OH and C6. In vivo toxicity experiments show that celastrol causes weight loss, diarrhea, gastrointestinal tract and liver inflammation in mice. CONCLUSIONS This study analyzed the metabolites and possible metabolic soft spots of celastrol, and its hepatotoxicity and gastrointestinal toxicity were demonstrated through in vivo studies for the first time. The results might provide an important basis for potential structural modification to increase the druggability of celastrol.
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Affiliation(s)
- Xiaojuan Jiang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Caixia Yuan
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Rong Ding
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Di Lu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Xiaoyu Peng
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Zhihao Dong
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Chunyan Zhu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Yihua Lin
- Department of Respiratory and Critical Care Medicine, The Third Clinical Medical College, Fujian Medical University, Fuzhou, China
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Caisheng Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Qiang Xie
- Department of Cardiology, The First Affiliated Hospital of Xiamen University, Xiamen, China
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Zhang M, Xing Y, Ma J, Zhang Y, Yu J, Wang X, Jia X. Investigation of the response of Platycodongrandiflorus (Jacq.) A. DC to salt stress using combined transcriptomics and metabolomics. BMC Plant Biol 2023; 23:589. [PMID: 38001405 PMCID: PMC10675982 DOI: 10.1186/s12870-023-04536-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 10/18/2023] [Indexed: 11/26/2023]
Abstract
BACKGROUND Platycodon grandiflorus (Jacq.) A. DC is a famous traditional Chinese medicine in China and an authentic medicine in Inner Mongolia. It has been traditionally used as an expectorant in cough and also has anti-inflammatory and other pharmacological effects. As a homologous plant of medicine and food, P. grandiflorus is widely planted in Northeast China. Soil salinity isa limiting factor for its cultivation. In this study, we comprehensively described the physiological characteristics of P. grandiflorus and combined transcriptomics and metabolomics to study the response of roots of P. grandiflorus to salt stress. RESULTS Overall, 8,988 differentially expressed genes were activated and significantly altered the metabolic processes. In total, 428 differentially abundant metabolites were affected by salt stress. After moderate and severe salt stress, most of the differentially abundant metabolites were enriched in the L-phenylalanine metabolic pathway. Through the comprehensive analysis of the interaction between key genes and metabolites, the main pathways such as lignin compound biosynthesis and triterpene saponin biosynthesis were completed. The relative content of compounds related to lignin biosynthesis, such as caffeic acid, coniferin, and syringing, increased under salt stress, and the related genes such as PAL, C4H, and the key enzyme gene UGT72E2 were activated to adapt to the salt stress. Platycodon saponin is one of the major triterpene saponins in P. grandiflorus, and Platycodin D is its most abundant major bioactive component. Under severe salt stress, Platycodin D level increased by nearly 1.77-fold compared with the control group. Most of the genes involved insynthetic pathway of Platycodin D, such as HMGCR, GGPS, SE, and LUP, were upregulated under salt stress. CONCLUSION Salt stress led to a decrease in the biomass and affected the activities of antioxidant enzymes and contents of osmotic regulators in the plant. These results provided not only novel insights into the underlying mechanisms of response of P. grandiflorus to salt stress but also a foundation for future studies on the function of genes related to salt tolerance in the triterpenoid saponin biosynthesis pathway.
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Affiliation(s)
- Meixi Zhang
- College of Pharmacy, Inner Mongolia Medical University, Hohhot, China
| | - Yushu Xing
- College of Pharmacy, Inner Mongolia Medical University, Hohhot, China
| | - Jiannan Ma
- College of Pharmacy, Inner Mongolia Medical University, Hohhot, China
| | - Ying Zhang
- College of Pharmacy, Inner Mongolia Medical University, Hohhot, China
| | - Juan Yu
- College of Pharmacy, Inner Mongolia Medical University, Hohhot, China
| | - Xiaoqin Wang
- College of Pharmacy, Inner Mongolia Medical University, Hohhot, China.
| | - Xin Jia
- College of Pharmacy, Inner Mongolia Medical University, Hohhot, China.
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Li X, Hu B. Improvement of Oleanolic Acid Production in Saccharomyces Cerevisiae Based on OptKnock Framework. Stud Health Technol Inform 2023; 308:111-122. [PMID: 38007732 DOI: 10.3233/shti230831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
Biosynthesis of plant-derived natural products in the eukaryotic microbe Saccharomyces cerevisiae often faces the issue of the inefficient production due to the poor compatibility between the heterologous genes and chassis cells. In order to improve the biosynthetic efficiency of heterologous production of plant secondary metabolites in S. cerevisiae, people usually do metabolic engineering in and around the heterologous metabolic pathways based on researchers' experience and mass of trials, which usually consumes a lot of manpower and financial resources. Herein, to further improve the heterologous production of oleanolic acid (OA), a pentacyclic triterpenoid in many plants with several promising pharmacological activities, in a genetically engineered, OA-producing strain S. cerevisiae OA07 effectively, a genome-scale metabolic model of the strain was developed, with the named as Yeast-OA07, and then OptKnock, a flux balance analysis-based pathway design algorithm with bilevel objectives, was utilized to develop in silico gene-knockout strategies to guide the molecular operations in S. cerevisiae OA07. Yeast8-OA07 contained 1133 genes, 2702 metabolites, and 3997 reactions. Five in silico gene-knockout strategies, which were expected to increase OA productivities, were obtained based on the metabolic flux analysis of Yeast8-OA07 through OptKnock. Afterwards, five mutant strains, named as LK1, LK2, LK3, LK4 and LK5, were constructed according to the in silico strategies. It was found that the mutant strain LK2, in which 2-amino-4-hydroxy-6-hydroxymethyl dihydropteridine diphosphokinase-encoding gene FOL1 and formate dehydrogenase-encoding gene FDH1 were deleted, had an OA yield of 125.04 mg·L-1, which was significantlyhigher than the original strain OA07 (89.50 mg·L-1), while the mutant strain LK5, which eliminated paminobenzoic acid synthase-encoding gene ABZ1 and glycine hydroxymethyl transferase-encoding gene SHM1, had an even higher OA yield of 207.37 mg·L-1. Nevertheless, strain LK6, which was developed by integrating the in silico gene-knockout strategies of LK2 and LK5, had a significant decrease of OA production than S. cerevisiae OA07, indicating that in silico knockout strategies do not fit to in vivo iteration directly. Our study provides a novel, efficient method to improve the heterologous production of plant metabolites in microbial cell factories.
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Affiliation(s)
- Xiaohan Li
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Bing Hu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
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Chen X, Hudson GA, Mineo C, Amer B, Baidoo EEK, Crowe SA, Liu Y, Keasling JD, Scheller HV. Deciphering triterpenoid saponin biosynthesis by leveraging transcriptome response to methyl jasmonate elicitation in Saponaria vaccaria. Nat Commun 2023; 14:7101. [PMID: 37925486 PMCID: PMC10625584 DOI: 10.1038/s41467-023-42877-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 10/24/2023] [Indexed: 11/06/2023] Open
Abstract
Methyl jasmonate (MeJA) is a known elicitor of plant specialized metabolism, including triterpenoid saponins. Saponaria vaccaria is an annual herb used in traditional Chinese medicine, containing large quantities of oleanane-type triterpenoid saponins with anticancer properties and structural similarities to the vaccine adjuvant QS-21. Leveraging the MeJA-elicited saponin biosynthesis, we identify multiple enzymes catalyzing the oxidation and glycosylation of triterpenoids in S. vaccaria. This exploration is aided by Pacbio full-length transcriptome sequencing and gene expression analysis. A cellulose synthase-like enzyme can not only glucuronidate triterpenoid aglycones but also alter the product profile of a cytochrome P450 monooxygenase via preference for the aldehyde intermediate. Furthermore, the discovery of a UDP-glucose 4,6-dehydratase and a UDP-4-keto-6-deoxy-glucose reductase reveals the biosynthetic pathway for the rare nucleotide sugar UDP-D-fucose, a likely sugar donor for fucosylation of plant natural products. Our work enables the production and optimization of high-value saponins in microorganisms and plants through synthetic biology approaches.
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Affiliation(s)
- Xiaoyue Chen
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USA
- Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA, 94608, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA
| | - Graham A Hudson
- Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA, 94608, USA
- California Institute of Quantitative Biosciences (QB3), University of California, Berkeley, CA, 94720, USA
| | - Charlotte Mineo
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USA
- Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA, 94608, USA
| | - Bashar Amer
- Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA, 94608, USA
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA
| | - Edward E K Baidoo
- Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA, 94608, USA
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA
| | - Samantha A Crowe
- Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA, 94608, USA
- California Institute of Quantitative Biosciences (QB3), University of California, Berkeley, CA, 94720, USA
- Department of Chemical & Biomolecular Engineering, University of California, Berkeley, CA, 94720, USA
| | - Yuzhong Liu
- Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA, 94608, USA
- California Institute of Quantitative Biosciences (QB3), University of California, Berkeley, CA, 94720, USA
| | - Jay D Keasling
- Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA, 94608, USA
- California Institute of Quantitative Biosciences (QB3), University of California, Berkeley, CA, 94720, USA
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA
- Department of Chemical & Biomolecular Engineering, University of California, Berkeley, CA, 94720, USA
- Department of Bioengineering, University of California, Berkeley, CA, 94720, USA
- Technical University of Denmark, DK-2800, Kongens Lyngby, Denmark
- Center for Synthetic Biochemistry, Shenzhen Institutes for Advanced Technologies, Shenzhen, China
| | - Henrik V Scheller
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USA.
- Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA, 94608, USA.
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA.
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Song SE, Shin SK, Kim YW, Do YR, Lim AK, Bae JH, Jeong GS, Im SS, Song DK. Lupenone attenuates thapsigargin-induced endoplasmic reticulum stress and apoptosis in pancreatic beta cells possibly through inhibition of protein tyrosine kinase 2 activity. Life Sci 2023; 332:122107. [PMID: 37739164 DOI: 10.1016/j.lfs.2023.122107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 09/14/2023] [Accepted: 09/17/2023] [Indexed: 09/24/2023]
Abstract
AIMS Prolonged high levels of cytokines, glucose, or free fatty acids are associated with diabetes, elevation of cytosolic Ca2+ concentration ([Ca2+]C), and depletion of Ca2+ concentration in the endoplasmic reticulum (ER) of pancreatic beta cells. This Ca2+ imbalance induces ER stress and apoptosis. Lupenone, a lupan-type triterpenoid, is beneficial in diabetes; however, its mechanism of action is yet to be clarified. This study evaluated the protective mechanism of lupenone against thapsigargin-induced ER stress and apoptosis in pancreatic beta cells. MATERIALS AND METHODS MIN6, INS-1, and native mouse islet cells were used. Western blot for protein expressions, measurement of [Ca2+]C, and in vivo glucose tolerance test were mainly performed. KEY FINDINGS Thapsigargin increased the protein levels of cleaved caspase 3, cleaved PARP, and the phosphorylated form of JNK, ATF4, and CHOP. Thapsigargin increased the interaction between stromal interaction molecule1 (Stim1) and Orai1, enhancing store-operated calcium entry (SOCE). SOCE is further activated by protein tyrosine kinase 2 (Pyk2), which is Ca2+-dependent and phosphorylates the tyrosine residue at Y361 in Stim1. Lupenone inhibited thapsigargin-mediated Pyk2 activation, suppressed [Ca2+]C, ER stress, and apoptosis. Lupenone restored impaired glucose-stimulated insulin secretion effectuated by thapsigargin and glucose intolerance in a low-dose streptozotocin-induced diabetic mouse model. SIGNIFICANCE These results suggested that lupenone attenuated thapsigargin-induced ER stress and apoptosis by inhibiting SOCE; this may be due to the hindrance of Pyk2-mediated Stim1 tyrosine phosphorylation. In beta cells that are inevitably exposed to frequent [Ca2+]C elevation, the attenuation of abnormally high SOCE would be beneficial for their survival.
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Affiliation(s)
- Seung-Eun Song
- Department of Physiology & Obesity-mediated Disease Research Center, Keimyung University School of Medicine, Daegu, South Korea
| | - Su-Kyung Shin
- Department of Food Science and Nutrition, Kyungpook National University, Daegu, South Korea
| | - Yong-Woon Kim
- Department of Physiology, Yeungnam University School of Medicine, Daegu, South Korea
| | - Young Rok Do
- Department of Internal Medicine, Keimyung University Dongsan Medical Center, Daegu, South Korea
| | - Ae Kyoung Lim
- Department of Physiology & Obesity-mediated Disease Research Center, Keimyung University School of Medicine, Daegu, South Korea
| | - Jae-Hoon Bae
- Department of Physiology & Obesity-mediated Disease Research Center, Keimyung University School of Medicine, Daegu, South Korea
| | - Gil-Saeng Jeong
- Keimyung University, College of Pharmacy, Daegu, South Korea
| | - Seung-Soon Im
- Department of Physiology & Obesity-mediated Disease Research Center, Keimyung University School of Medicine, Daegu, South Korea
| | - Dae-Kyu Song
- Department of Physiology & Obesity-mediated Disease Research Center, Keimyung University School of Medicine, Daegu, South Korea.
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Shang FF, Lu Q, Lin T, Pu M, Xiao R, Liu W, Deng H, Guo H, Quan ZS, Ding C, Shen QK. Discovery of Triazolyl Derivatives of Cucurbitacin B Targeting IGF2BP1 against Non-Small Cell Lung Cancer. J Med Chem 2023; 66:12931-12949. [PMID: 37681508 DOI: 10.1021/acs.jmedchem.3c00872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
Cucurbitacin B (CuB) is a potent but toxic anticancer natural product. Herein, we designed and synthesized 2-OH- and 16-OH-modified CuB derivatives to improve their antitumor efficacy and reduce toxicity. Among them, derivative A11 had the most potent antiproliferative activity against A549 lung cancer cells (IC50 = 0.009 μM) and was approximately 10-fold more potent than CuB, while the cytotoxicity of A11 toward normal L02 cells was about 10-fold less potent, indicating a much wider therapeutic window than CuB. Derivative A11 directly binds to the insulin-like growth factor 2 mRNA-binding protein 1 (IGF2BP1) protein with a KD value of 2.88 nM, which is about 23-fold more potent than CuB, leading to the decreased expression of downstream apoptosis- and cell cycle-related proteins. More importantly, A11 exhibited much more potent anticancer efficacy in an A549 xenograft mouse model with a TGI rate of 80% and a superior in vivo safety profile than that of CuB.
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Affiliation(s)
- Fan-Fan Shang
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, China
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, National Key Laboratory of Innovative Immunotherapy, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qing Lu
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, National Key Laboratory of Innovative Immunotherapy, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Tailiang Lin
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, National Key Laboratory of Innovative Immunotherapy, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Miaoxia Pu
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Integration Science, Yanbian University, Yanji 133002, China
| | - Ruoxuan Xiao
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, National Key Laboratory of Innovative Immunotherapy, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wanmei Liu
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, National Key Laboratory of Innovative Immunotherapy, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hao Deng
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, China
| | - Hongyan Guo
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, China
| | - Zhe-Shan Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, China
| | - Chunyong Ding
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, National Key Laboratory of Innovative Immunotherapy, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qing-Kun Shen
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, China
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Zhao Y, Hansen NL, Duan YT, Prasad M, Motawia MS, Møller BL, Pateraki I, Staerk D, Bak S, Miettinen K, Kampranis SC. Biosynthesis and biotechnological production of the anti-obesity agent celastrol. Nat Chem 2023; 15:1236-1246. [PMID: 37365337 DOI: 10.1038/s41557-023-01245-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 05/19/2023] [Indexed: 06/28/2023]
Abstract
Obesity is a major health risk still lacking effective pharmacological treatment. A potent anti-obesity agent, celastrol, has been identified in the roots of Tripterygium wilfordii. However, an efficient synthetic method is required to better explore its biological utility. Here we elucidate the 11 missing steps for the celastrol biosynthetic route to enable its de novo biosynthesis in yeast. First, we reveal the cytochrome P450 enzymes that catalyse the four oxidation steps that produce the key intermediate celastrogenic acid. Subsequently, we show that non-enzymatic decarboxylation-triggered activation of celastrogenic acid leads to a cascade of tandem catechol oxidation-driven double-bond extension events that generate the characteristic quinone methide moiety of celastrol. Using this acquired knowledge, we have developed a method for producing celastrol starting from table sugar. This work highlights the effectiveness of combining plant biochemistry with metabolic engineering and chemistry for the scalable synthesis of complex specialized metabolites.
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Affiliation(s)
- Yong Zhao
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environment Sciences, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Nikolaj L Hansen
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environment Sciences, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Yao-Tao Duan
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environment Sciences, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Meera Prasad
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environment Sciences, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Mohammed S Motawia
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environment Sciences, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Birger L Møller
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environment Sciences, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Irini Pateraki
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environment Sciences, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Dan Staerk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Søren Bak
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environment Sciences, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark.
| | - Karel Miettinen
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environment Sciences, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark.
| | - Sotirios C Kampranis
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environment Sciences, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark.
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Sudheer WN, Thiruvengadam M, Nagella P. A comprehensive review on tissue culture studies and secondary metabolite production in Bacopa monnieri L. Pennell: a nootropic plant. Crit Rev Biotechnol 2023; 43:956-970. [PMID: 35819370 DOI: 10.1080/07388551.2022.2085544] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 04/20/2022] [Accepted: 05/24/2022] [Indexed: 11/03/2022]
Abstract
Bacopa monnieri L. Pennell, commonly known as Brahmi, is an important medicinal plant that belongs to the family Plantaginaceae. Brahmi is rich in innumerable bioactive secondary metabolites, especially bacosides that can be employed to reduce many health issues. This plant is used as a neuro-tonic and treatment for mental health, depression, and cognitive performance. Brahmi is also known for its antioxidant, anti-inflammatory, and anti-hepatotoxic activities. There is a huge demand for its raw materials, particularly for the extraction of bioactive molecules. The conventional mode of propagation could not meet the required commercial demand. To overcome this, biotechnological approaches, such as plant tissue culture techniques have been established for the production of important secondary metabolites through various culture techniques, such as callus and cell suspension cultures and organ cultures, to allow for rapid propagation and conservation of medicinally important plants with increased production of bioactive compounds. It has been found that a bioreactor-based technology can also enhance the multiplication rate of cell and organ cultures for commercial propagation of medicinally important bioactive molecules. The present review focuses on the propagation and production of bacoside A by cell and organ cultures of Bacopa monnieri, a nootropic plant. The review also focuses on the biosynthesis of bacoside A, different elicitation strategies, and the over-expression of genes for the production of bacoside-A. It also identifies research gaps that need to be addressed in future studies for the sustainable production of bioactive molecules from B. monnieri.
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Affiliation(s)
- W N Sudheer
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, India
| | - Muthu Thiruvengadam
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul, South Korea
| | - Praveen Nagella
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, India
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Pu X, Chen M, Lei M, Lin X, Zhang J, Ai Z, He J, Liu Y, Yang S, Wang H, Liao J, Zhang L, Huang Q. Discovery of unique CYP716C oxidase involved in pentacyclic triterpene biosynthesis from Camptotheca acuminata. Plant Physiol Biochem 2023; 202:107929. [PMID: 37542826 DOI: 10.1016/j.plaphy.2023.107929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/30/2023] [Accepted: 08/01/2023] [Indexed: 08/07/2023]
Abstract
Dozens of triterpenes have been isolated from Camptotheca acuminata, however, triterpene metabolism in this plant remains poorly understood. The common C28 carboxy located in the oleanane-type and ursane-type triterpenes indicates the existence of a functionally active triterpene, C28 oxidase, in this plant. Thorough mining and screening of the CYP716 genes were initiated using the multi-omics database for C. acuminata. Two CYP716A (CYP716A394 and CYP716A395) and three CYP716C (CYP716C80-CYP716C82) were identified based on conserved domain analyses and hierarchical cluster analyses. CYP716 microsomal proteins were prepared and their enzymatic activities were evaluated in vitro. The CYP716 classified into the CYP716C subfamily displays β-amyrin oxidation activity, and CYP716A displays α-amyrin and lupeol oxidation activity, based on gas chromatography-mass spectrometry analyses. The oxidation products were determined based on their mass and nuclear magnetic resonance spectrums. The optimum reaction conditions and kinetic parameters for CYP716C were determined, and functions were verified in Nicotiana benthaminana. Relative quantitative analyses revealed that these CYP716C genes were enriched in the leaves of C. acuminata plantlets after 60 d. These results indicate that CYP716C plays a dominant role in oleanane-type triterpene metabolism in the leaves of C. acuminata via a substrate-specific manner, and CYP716A is responsible for ursane- and lupane-type triterpene metabolism in fruit. This study provides valuable insights into the unique CYP716C-mediated oxidation step of pentacyclic triterpene biosynthesis in C. acuminata.
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Affiliation(s)
- Xiang Pu
- College of Science, Sichuan Agricultural University, Ya'an, 625104, PR China.
| | - Menghan Chen
- College of Science, Sichuan Agricultural University, Ya'an, 625104, PR China
| | - Ming Lei
- College of Science, Sichuan Agricultural University, Ya'an, 625104, PR China
| | - Xinyu Lin
- College of Science, Sichuan Agricultural University, Ya'an, 625104, PR China
| | - Jiahua Zhang
- College of Science, Sichuan Agricultural University, Ya'an, 625104, PR China
| | - Zhihui Ai
- College of Science, Sichuan Agricultural University, Ya'an, 625104, PR China
| | - Jinwei He
- College of Science, Sichuan Agricultural University, Ya'an, 625104, PR China
| | - Yuke Liu
- College of Science, Sichuan Agricultural University, Ya'an, 625104, PR China
| | - Shengnan Yang
- College of Science, Sichuan Agricultural University, Ya'an, 625104, PR China
| | - Hanguang Wang
- College of Science, Sichuan Agricultural University, Ya'an, 625104, PR China
| | - Jinqiu Liao
- College of Life Science, Sichuan Agricultural University, Ya'an, 625104, PR China
| | - Li Zhang
- College of Science, Sichuan Agricultural University, Ya'an, 625104, PR China
| | - Qianming Huang
- College of Science, Sichuan Agricultural University, Ya'an, 625104, PR China.
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Gu J, Shi YN, Zhu N, Li HF, Zhang CJ, Qin L. Celastrol functions as an emerging manager of lipid metabolism: Mechanism and therapeutic potential. Biomed Pharmacother 2023; 164:114981. [PMID: 37285754 DOI: 10.1016/j.biopha.2023.114981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/27/2023] [Accepted: 06/01/2023] [Indexed: 06/09/2023] Open
Abstract
Lipid metabolism disorders are pivotal in the development of various lipid-related diseases, such as obesity, atherosclerosis, non-alcoholic fatty liver disease, type 2 diabetes, and cancer. Celastrol, a bioactive compound extracted from the Chinese herb Tripterygium wilfordii Hook F, has recently demonstrated potent lipid-regulating abilities and promising therapeutic effects for lipid-related diseases. There is substantial evidence indicating that celastrol can ameliorate lipid metabolism disorders by regulating lipid profiles and related metabolic processes, including lipid synthesis, catabolism, absorption, transport, and peroxidation. Even wild-type mice show augmented lipid metabolism after treatment with celastrol. This review aims to provide an overview of recent advancements in the lipid-regulating properties of celastrol, as well as to elucidate its underlying molecular mechanisms. Besides, potential strategies for targeted drug delivery and combination therapy are proposed to enhance the lipid-regulating effects of celastrol and avoid the limitations of its clinical application.
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Affiliation(s)
- Jia Gu
- Laboratory of Stem Cell Regulation with Chinese Medicine and Its Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, Hunan, China
| | - Ya-Ning Shi
- Laboratory of Stem Cell Regulation with Chinese Medicine and Its Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, Hunan, China; Science and Technology Innovation Center, Hunan University of Chinese Medicine, Changsha 410208, Hunan, China
| | - Neng Zhu
- Department of Urology, The First Hospital of Hunan University of Chinese Medicine, Changsha 410021, Hunan, China
| | - Hong-Fang Li
- Laboratory of Stem Cell Regulation with Chinese Medicine and Its Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, Hunan, China
| | - Chan-Juan Zhang
- Laboratory of Stem Cell Regulation with Chinese Medicine and Its Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, Hunan, China
| | - Li Qin
- Laboratory of Stem Cell Regulation with Chinese Medicine and Its Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, Hunan, China; Hunan Provincial Key Laboratory of Vascular Biology and Translational Medicine, Hunan University of Chinese Medicine, Changsha 410208, Hunan, China; Hunan Engineering Technology Research Center for Bioactive Substance Discovery of Chinese Medicine, Hunan University of Chinese Medicine, Changsha 410208, Hunan, China.
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Lacchini E, Venegas-Molina J, Goossens A. Structural and functional diversity in plant specialized metabolism signals and products: The case of oxylipins and triterpenes. Curr Opin Plant Biol 2023; 74:102371. [PMID: 37148672 DOI: 10.1016/j.pbi.2023.102371] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/03/2023] [Accepted: 04/03/2023] [Indexed: 05/08/2023]
Abstract
Metabolic enzymes tend to evolve towards catalytic efficacy, precision and speed. This seems particularly true for ancient and conserved enzymes involved in fundamental cellular processes that are present virtually in every cell and organism and converting and producing relatively limited metabolite numbers. Nevertheless, sessile organisms like plants have an astonishing repertoire of specific (specialized) metabolites that, by numbers and chemical complexity, by far exceed primary metabolites. Most theories agree that early gene duplication, subsequent positive selection and diversifying evolution have allowed relaxed selection of duplicated metabolic genes, thus facilitating the accumulation of mutations that could broaden substrate/product specificity and lower activation barriers and kinetics. Here, we use oxylipins, oxygenated fatty acids of plastidial origin to which the phytohormone jasmonate belongs, and triterpenes, a large group of specialized metabolites whose biosynthesis is often elicited by jasmonates, to showcase the structural and functional diversity of chemical signals and products in plant metabolism.
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Affiliation(s)
- Elia Lacchini
- Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052, Ghent, Belgium; VIB Center for Plant Systems Biology, B-9052, Ghent, Belgium
| | - Jhon Venegas-Molina
- Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052, Ghent, Belgium; VIB Center for Plant Systems Biology, B-9052, Ghent, Belgium
| | - Alain Goossens
- Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052, Ghent, Belgium; VIB Center for Plant Systems Biology, B-9052, Ghent, Belgium.
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36
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Averyanova EV, Shkolnikova MN, Chugunova OV, Mazko ON. [Effects of triterpenoids in fatty products on liver condition of laboratory animals with acute toxic hepatitis]. Vopr Pitan 2023; 92:81-91. [PMID: 37801458 DOI: 10.33029/0042-8833-2023-92-4-81-91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/30/2023] [Indexed: 10/08/2023]
Abstract
One of the principles of prevention and non-medicamentous treatment of liver diseases, including hepatitis of different etiology, is the normalization of the diet through the consumption of food with physiologically active ingredients, in particular betulin, which helps to eliminate the causes of metabolic and oxidative disorders within liver cells. The aim of the research was to assess in vivo the influence of triterpene alcohol betulin extracted from Betula pendula Roth. birch bark in fat-containing products (for example mayonnaise) on the blood biochemical parameters and liver morphological structure of rats with initiated acute toxic hepatitis. Material and methods. Hepatoprotective and antioxidant activities of betulin as part of mayonnaise samples has been investigated in vivo on the model of toxic hepatitis initiated by carbon tetrachloride in male Wistar rats weighing 210-265 g. The animals were divided into 4 groups of 10 animals each: CG-1 - intact, CG-2 and MG - with carbon tetrachloride initiated toxic hepatitis. rats of the main groups were orally administered mayonnaise once a day at a dosage of 1 ml for 21 days after the formation of the model pathology: OG-1 with the added betulin (1 mg per 1 kg of body weight), OG-2 without betulin. Disorders of metabolic and oxidative processes in liver cells of animals were evaluated by biochemical indicators of blood plasma: the level of glucose, albumin, total cholesterol, triglycerides and urea and the activity of alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase and γ-glutamyltransferase. Oxidative stress in rats was estimated by the activity of catalase and superoxide dismutase in blood hemolysate (at a dilution of 1:200 and 1:10, respectively); the total prooxidant (in blood plasma) and total antioxidant (in blood hemolysate at a dilution of 1:10) activity were determined spectrophotometrically (colored complexes of TWIN-80 oxidation products with thiobarbituric acid). The morphological structure of rats' liver was estimated by microscopy of prepared cuts of hepatic tissue. Results. Based on biochemical parameters of rat blood plasma, it has been established that the administration of mayonnaise with betulin prevents the development of cytolic syndrome and suppresses the process of peroxidation by directly neutralizing free radicals. Aspartate aminotransferase and alkaline phosphatase activity in blood plasma of the experimental animals of the main group MG-1 reduced by 20.7 and 35.2% compared with indicators of the rats of the main group MG-2. Glucose concentration normalized to the level of the control group CG-1. The concentration of bilirubin and triglycerides decreased by 22.9 and by 48.1%, which indicates a significant reduction in the indicators of cholestatic syndrome in the group of animals OG-1 compared to OG-2. The total prooxidant activity and the concentration of thiobarbiturate-reactive products decreased compared to the CG-2 and MG-2 groups, which indicates the suppression of oxidative stress and, as a result, an improvement in liver conditions of animals with toxic hepatitis even when taking a fat-containing product. In liver histopeparates of animals receiving mayonnaise with betulin, necrobotic changes were less pronounced in comparison with the group MG-2. They were estimated at 1 point: small-drip dystrophy spots were found, haemorrhages in the interregional septum with inflammatory infiltration in the course of hemorrhages against the presence of necrosis hepatocytes with pronounced adipose dystrophy in the centres of the lobules, step necrosis with signs of replacing the damaged hepatocytes of the connective tissue, accompanied by centrolobular hemorrhages in MG-2 rats. Conclusion. Introduced into the composition of mayonnaise betulin, reduces the development of cytolic syndrome in toxic hepatitis and suppresses the process of peroxidation, on the basis of which fat-containing foods with betulin can be recommended for clinical examination as specialized products in acute and chronic liver diseases, including complicated cholestasis.
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Affiliation(s)
- E V Averyanova
- I.M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), 119991, Moscow, Russian Federation
| | - M N Shkolnikova
- I.M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), 119991, Moscow, Russian Federation
| | - O V Chugunova
- I.M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), 119991, Moscow, Russian Federation
| | - O N Mazko
- I.M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), 119991, Moscow, Russian Federation
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Zhang T, Rao Q, Dai M, Wu ZE, Zhao Q, Li F. Tripterygium wilfordii protects against an animal model of autoimmune hepatitis. J Ethnopharmacol 2023; 309:116365. [PMID: 36907478 DOI: 10.1016/j.jep.2023.116365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/22/2023] [Accepted: 03/05/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tripterygium wilfordii tablets (TWT) is widely used to treat autoimmune diseases such as rheumatoid arthritis. Celastrol, one main active ingredient in TWT, has been shown to produce a variety of beneficial effects, including anti-inflammatory, anti-obesity, anti-cancer, and immunomodulatory. However, whether TWT could protect against Concanavalin A (Con A)-induced hepatitis remains unclear. THE AIM OF THE STUDY This study aims to investigate the protective effect of TWT against Con A-induced hepatitis and elucidate the underlying mechanism. MATERIALS AND METHODS Metabolomic analysis, pathological analysis, biochemical analysis, qPCR and Western blot analysis and the Pxr-null mice were used in this study. RESULTS The results indicated that TWT and its active ingredient celastrol could protect against Con A-induced acute hepatitis. Plasma metabolomics analysis revealed that metabolic perturbations related to bile acid and fatty acid metabolism induced by Con A were reversed by celastrol. The level of itaconate in the liver was increased by celastrol and speculated as an active endogenous compound mediating the protective effect of celastrol. Administration of 4-octanyl itaconate (4-OI) as a cell-permeable itaconate mimicker was found to attenuate Con A-induced liver injury through activation of the pregnane X receptor (PXR) and enhancement of the transcription factor EB (TFEB)-mediated autophagy. CONCLUSIONS Celastrol increased itaconate and 4-OI promoted activation of TFEB-mediated lysosomal autophagy to protect against Con A-induced liver injury in a PXR-dependent manner. Our study reported a protective effect of celastrol against Con A-induced AIH via an increased production of itaconate and upregulation of TFEB. The results highlighted that PXR and TFEB-mediated lysosomal autophagic pathway may offer promising therapeutic target for the treatment of autoimmune hepatitis.
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Affiliation(s)
- Ting Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Laboratory of Metabolomics and Drug-induced Liver Injury, Sichuan University-Oxford University Huaxi Gastrointestinal Cancer Centre, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Qianru Rao
- Laboratory of Metabolomics and Drug-induced Liver Injury, Sichuan University-Oxford University Huaxi Gastrointestinal Cancer Centre, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Manyun Dai
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Laboratory of Metabolomics and Drug-induced Liver Injury, Sichuan University-Oxford University Huaxi Gastrointestinal Cancer Centre, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhanxuan E Wu
- Laboratory of Metabolomics and Drug-induced Liver Injury, Sichuan University-Oxford University Huaxi Gastrointestinal Cancer Centre, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Qi Zhao
- Laboratory of Metabolomics and Drug-induced Liver Injury, Sichuan University-Oxford University Huaxi Gastrointestinal Cancer Centre, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Fei Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; Laboratory of Metabolomics and Drug-induced Liver Injury, Sichuan University-Oxford University Huaxi Gastrointestinal Cancer Centre, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China; Department of Pharmacy, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Alagna F, Reed J, Calderini O, Thimmappa R, Cultrera NGM, Cattivelli A, Tagliazucchi D, Mousavi S, Mariotti R, Osbourn A, Baldoni L. OeBAS and CYP716C67 catalyze the biosynthesis of health-beneficial triterpenoids in olive (Olea europaea) fruits. New Phytol 2023; 238:2047-2063. [PMID: 36880371 PMCID: PMC10952584 DOI: 10.1111/nph.18863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 02/28/2023] [Indexed: 05/04/2023]
Abstract
The bioactive properties of olive (Olea europaea) fruits and olive oil are largely attributed to terpenoid compounds, including diverse triterpenoids such as oleanolic, maslinic and ursolic acids, erythrodiol, and uvaol. They have applications in the agri-food, cosmetics, and pharmaceutical industries. Some key steps involved in the biosynthesis of these compounds are still unknown. Genome mining, biochemical analysis, and trait association studies have been used to identify major gene candidates controlling triterpenoid content of olive fruits. Here, we identify and functionally characterize an oxidosqualene cyclase (OeBAS) required for the production of the major triterpene scaffold β-amyrin, the precursor of erythrodiol, oleanolic and maslinic acids, and a cytochrome P450 (CYP716C67) that mediates 2α oxidation of the oleanane- and ursane-type triterpene scaffolds to produce maslinic and corosolic acids, respectively. To confirm the enzymatic functions of the entire pathway, we have reconstituted the olive biosynthetic pathway for oleanane- and ursane-type triterpenoids in the heterologous host, Nicotiana benthamiana. Finally, we have identified genetic markers associated with oleanolic and maslinic acid fruit content on the chromosomes carrying the OeBAS and CYP716C67 genes. Our results shed light on the biosynthesis of olive triterpenoids and provide new gene targets for germplasm screening and breeding for high triterpenoid content.
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Affiliation(s)
- Fiammetta Alagna
- Department of Energy Technologies and Renewable SourcesNational Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Trisaia Research Centre75026RotondellaItaly
| | - James Reed
- Department of Biochemistry and MetabolismJohn Innes CentreNorwich Research ParkNorwichNR4 7UHUK
| | - Ornella Calderini
- Institute of Biosciences and BioresourcesNational Research Council (CNR)06128PerugiaItaly
| | - Ramesha Thimmappa
- Department of Biochemistry and MetabolismJohn Innes CentreNorwich Research ParkNorwichNR4 7UHUK
- Amity Institute of Genome EngineeringAmity University Uttar PradeshNoida201313India
| | - Nicolò G. M. Cultrera
- Institute of Biosciences and BioresourcesNational Research Council (CNR)06128PerugiaItaly
| | - Alice Cattivelli
- Department of Life SciencesUniversity of Modena and Reggio Emilia42100Reggio EmiliaItaly
| | - Davide Tagliazucchi
- Department of Life SciencesUniversity of Modena and Reggio Emilia42100Reggio EmiliaItaly
| | - Soraya Mousavi
- Institute of Biosciences and BioresourcesNational Research Council (CNR)06128PerugiaItaly
| | - Roberto Mariotti
- Institute of Biosciences and BioresourcesNational Research Council (CNR)06128PerugiaItaly
| | - Anne Osbourn
- Department of Biochemistry and MetabolismJohn Innes CentreNorwich Research ParkNorwichNR4 7UHUK
| | - Luciana Baldoni
- Institute of Biosciences and BioresourcesNational Research Council (CNR)06128PerugiaItaly
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Nguyen TH, Thiers L, Van Moerkercke A, Bai Y, Fernández-Calvo P, Minne M, Depuydt T, Colinas M, Verstaen K, Van Isterdael G, Nützmann HW, Osbourn A, Saeys Y, De Rybel B, Vandepoele K, Ritter A, Goossens A. A redundant transcription factor network steers spatiotemporal Arabidopsis triterpene synthesis. Nat Plants 2023; 9:926-937. [PMID: 37188853 DOI: 10.1038/s41477-023-01419-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 04/14/2023] [Indexed: 05/17/2023]
Abstract
Plant specialized metabolites modulate developmental and ecological functions and comprise many therapeutic and other high-value compounds. However, the mechanisms determining their cell-specific expression remain unknown. Here we describe the transcriptional regulatory network that underlies cell-specific biosynthesis of triterpenes in Arabidopsis thaliana root tips. Expression of thalianol and marneral biosynthesis pathway genes depends on the phytohormone jasmonate and is limited to outer tissues. We show that this is promoted by the activity of redundant bHLH-type transcription factors from two distinct clades and coactivated by homeodomain factors. Conversely, the DOF-type transcription factor DAG1 and other regulators prevent expression of the triterpene pathway genes in inner tissues. We thus show how precise expression of triterpene biosynthesis genes is determined by a robust network of transactivators, coactivators and counteracting repressors.
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Affiliation(s)
- Trang Hieu Nguyen
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Louis Thiers
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Plant Sciences Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Melle, Belgium
| | - Alex Van Moerkercke
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Yuechen Bai
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
- School of Life Sciences, Fudan University, Shanghai, P.R. China
| | - Patricia Fernández-Calvo
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Misión Biolóxica de Galicia, CSIC, Pontevedra, Spain
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, Madrid, Spain
| | - Max Minne
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Thomas Depuydt
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Maite Colinas
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Kevin Verstaen
- VIB Single Cell Core, Ghent-Leuven, Belgium
- VIB Center for Inflammation Research, Data Mining and Modelling for Biomedicine, Ghent, Belgium
| | - Gert Van Isterdael
- VIB Flow Core, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Hans-Wilhelm Nützmann
- Department of Biochemistry and Metabolism, John Innes Centre, Norwich, UK
- Department of Biology and Biochemistry, The Milner Centre for Evolution, University of Bath, Bath, UK
| | - Anne Osbourn
- Department of Biochemistry and Metabolism, John Innes Centre, Norwich, UK
| | - Yvan Saeys
- VIB Center for Inflammation Research, Data Mining and Modelling for Biomedicine, Ghent, Belgium
- Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Ghent, Belgium
| | - Bert De Rybel
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Klaas Vandepoele
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Bioinformatics Institute Ghent, Ghent University, Ghent, Belgium
| | - Andrés Ritter
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Alain Goossens
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium.
- VIB Center for Plant Systems Biology, Ghent, Belgium.
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Ma Y, Li D, Zhong Y, Wang X, Li L, Osbourn A, Lucas WJ, Huang S, Shang Y. Vacuolar MATE/DTX protein-mediated cucurbitacin C transport is co-regulated with bitterness biosynthesis in cucumber. New Phytol 2023; 238:995-1003. [PMID: 36732026 DOI: 10.1111/nph.18786] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Membrane-localized transporters constitute important components for specialized metabolism in plants. However, due to the vast array of specialized metabolites produced by plants, and the large families of transporter genes, knowledge about the intracellular and intercellular transport of plant metabolites is still in its infancy. Cucurbitacins are bitter and defensive triterpenoids produced mainly in the cucurbits. Using a comparative genomics and multi-omics approach, a MATE gene (CsMATE1), physically clustered with cucurbitacin C (CuC) biosynthetic genes, was identified and functionally shown to sequester CuC in cucumber leaf mesophyll cells. Notably, the CuC transport process is strictly co-regulated with CuC biosynthesis. CsMATE1 clustering with bitterness biosynthesis genes may provide benefits and a basis for this feedback regulation on CuC sequestration and biosynthesis. Identification of transport systems for plant-specialized metabolites can accelerate the metabolic engineering of high-value-added compounds by simplifying their purification process.
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Affiliation(s)
- Yongshuo Ma
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518116, China
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Dawei Li
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518116, China
| | - Yang Zhong
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518116, China
| | - Xiaohan Wang
- College of Life Science, Capital Normal University, Beijing, 100048, China
| | - Legong Li
- College of Life Science, Capital Normal University, Beijing, 100048, China
| | - Anne Osbourn
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - William J Lucas
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518116, China
- Department of Plant Biology, College of Biological Sciences, University of California, Davis, CA, 95616, USA
| | - Sanwen Huang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518116, China
| | - Yi Shang
- Yunnan Key Laboratory of Potato Biology, The CAAS-YNNU-YINMORE Joint Academy of Potato Sciences, Yunnan Normal University, Kunming, 650500, China
- Engineering Research Center of Sustainable Development and Utilization of Biomass Energy (Ministry of Education), Yunnan Normal University, Kunming, 650500, China
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Jin K, Shi X, Liu J, Yu W, Liu Y, Li J, Du G, Lv X, Liu L. Combinatorial metabolic engineering enables the efficient production of ursolic acid and oleanolic acid in Saccharomyces cerevisiae. Bioresour Technol 2023; 374:128819. [PMID: 36868430 DOI: 10.1016/j.biortech.2023.128819] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/26/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
Ursolic acid (UA) and oleanolic acid (OA) have been demonstrated to have promising therapeutic potential as anticancer and bacteriostasis agents. Herein, via the heterologous expression and optimization of CrAS, CrAO, and AtCPR1, the de novo syntheses of UA and OA were achieved with titers of 7.4 and 3.0 mg/L, respectively. Subsequently, metabolic flux was redirected by increasing the cytosolic acetyl-CoA level and tuning the copy numbers of ERG1 and CrAS, thereby affording 483.4 mg/L UA and 163.8 mg/L OA. Furthermore, the lipid droplet compartmentalization of CrAO and AtCPR1 alongside the strengthening of the NADPH regeneration system increased the UA and OA titers to 692.3 and 253.4 mg/L in a shake flask and to 1132.9 and 433.9 mg/L in a 3-L fermenter, which is the highest UA titer reported to date. Overall, this study provides a reference for constructing microbial cell factories that can efficiently synthesize terpenoids.
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Affiliation(s)
- Ke Jin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
| | - Xun Shi
- Haoxiangni Health Food Co., Ltd, Xinzheng 451100, China
| | - Jiaheng Liu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
| | - Wenwen Yu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
| | - Yanfeng Liu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
| | - Jianghua Li
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
| | - Guocheng Du
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
| | - Xueqin Lv
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
| | - Long Liu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China; Food Laboratory of Zhongyuan, Jiangnan University, Wuxi 214122, China.
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Chen K, Zhang M, Gao B, Hasan A, Li J, Bao Y, Fan J, Yu R, Yi Y, Ågren H, Wang Z, Liu H, Ye M, Qiao X. Characterization and protein engineering of glycosyltransferases for the biosynthesis of diverse hepatoprotective cycloartane-type saponins in Astragalus membranaceus. Plant Biotechnol J 2023; 21:698-710. [PMID: 36529909 PMCID: PMC10037152 DOI: 10.1111/pbi.13983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 11/15/2022] [Accepted: 12/04/2022] [Indexed: 06/17/2023]
Abstract
Although plant secondary metabolites are important source of new drugs, obtaining these compounds is challenging due to their high structural diversity and low abundance. The roots of Astragalus membranaceus are a popular herbal medicine worldwide. It contains a series of cycloartane-type saponins (astragalosides) as hepatoprotective and antivirus components. However, astragalosides exhibit complex sugar substitution patterns which hindered their purification and bioactivity investigation. In this work, glycosyltransferases (GT) from A. membranaceus were studied to synthesize structurally diverse astragalosides. Three new GTs, AmGT1/5 and AmGT9, were characterized as 3-O-glycosyltransferase and 25-O-glycosyltransferase of cycloastragenol respectively. AmGT1G146V/I variants were obtained as specific 3-O-xylosyltransferases by sequence alignment, molecular modelling and site-directed mutagenesis. A combinatorial synthesis system was established using AmGT1/5/9, AmGT1G146V/S and the reported AmGT8 and AmGT8A394F . The system allowed the synthesis of 13 astragalosides in Astragalus root with conversion rates from 22.6% to 98.7%, covering most of the sugar-substitution patterns for astragalosides. In addition, AmGT1 exhibited remarkable sugar donor promiscuity to use 10 different donors, and was used to synthesize three novel astragalosides and ginsenosides. Glycosylation remarkably improved the hepatoprotective and SARS-CoV-2 inhibition activities for triterpenoids. This is one of the first attempts to produce a series of herbal constituents via combinatorial synthesis. The results provided new biocatalytic tools for saponin biosynthesis.
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Affiliation(s)
- Kuan Chen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical SciencesPeking UniversityBeijingChina
- Beijing Institute of Clinical Pharmacy, Beijing Friendship HospitalCapital Medical UniversityBeijingChina
| | - Meng Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical SciencesPeking UniversityBeijingChina
| | - Baihan Gao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical SciencesPeking UniversityBeijingChina
| | - Aobulikasimu Hasan
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical SciencesPeking UniversityBeijingChina
| | - Junhao Li
- Department of Physics and AstronomyUppsala UniversityUppsalaSweden
| | - Yang'oujie Bao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical SciencesPeking UniversityBeijingChina
| | - Jingjing Fan
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical SciencesPeking UniversityBeijingChina
| | - Rong Yu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical SciencesPeking UniversityBeijingChina
| | - Yang Yi
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical SciencesPeking UniversityBeijingChina
| | - Hans Ågren
- Department of Physics and AstronomyUppsala UniversityUppsalaSweden
| | - Zilong Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical SciencesPeking UniversityBeijingChina
| | - Haiyang Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of BotanyChinese Academy of SciencesKunmingChina
| | - Min Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical SciencesPeking UniversityBeijingChina
| | - Xue Qiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical SciencesPeking UniversityBeijingChina
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Wen C, Zhang Z, Shi Q, Niu R, Duan X, Shen B, Li X. Transcription Factors ZjMYB39 and ZjMYB4 Regulate Farnesyl Diphosphate Synthase- and Squalene Synthase-Mediated Triterpenoid Biosynthesis in Jujube. J Agric Food Chem 2023; 71:4599-4614. [PMID: 36880571 DOI: 10.1021/acs.jafc.2c08679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Jujube (Ziziphus jujuba Mill.) is rich in valuable bioactive triterpenoids. However, the regulatory mechanism underlying triterpenoid biosynthesis in jujube remains poorly studied. Here, we characterized the triterpenoid content in wild jujube and cultivated jujube. The triterpenoid content was higher in wild jujube than in cultivated jujube, triterpenoids were most abundant in young leaves, buds, and later stages of development. The transcriptome analysis and correlation analysis showed that differentially expressed genes (DEGs) were enriched in the terpenoid synthesis pathways, and triterpenoids content was strongly correlated with farnesyl diphosphate synthase (ZjFPS), squalene synthase (ZjSQS), and transcription factors ZjMYB39 and ZjMYB4 expression. Gene overexpression and silencing analysis indicated that ZjFPS and ZjSQS were key genes in triterpenoid biosynthesis and transcription factors ZjMYB39 and ZjMYB4 regulated triterpenoid biosynthesis. Subcellular localization experiments showed that ZjFPS and ZjSQS were localized to the nucleus and endoplasmic reticulum and ZjMYB39 and ZjMYB4 were localized to the nucleus. Yeast one-hybrid, glucuronidase activity, and dual-luciferase activity assays suggested that ZjMYB39 and ZjMYB4 regulate triterpenoid biosynthesis by directly binding and activating the promoters of ZjFPS and ZjSQS. These findings provide insights into the underlying regulatory network of triterpenoids metabolism in jujube and lay theoretical and practical foundation for molecular breeding.
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Affiliation(s)
- Cuiping Wen
- College of Forestry, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China
| | - Zhong Zhang
- College of Forestry, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
| | - Qianqian Shi
- College of Forestry, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China
- Key Comprehensive Laboratory of Forestry of Shaanxi Province, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China
| | - Runzi Niu
- College of Forestry, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China
| | - Xiaoshan Duan
- College of Forestry, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China
- Key Comprehensive Laboratory of Forestry of Shaanxi Province, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China
| | - Bingqi Shen
- College of Forestry, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China
| | - Xingang Li
- College of Forestry, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China
- Key Comprehensive Laboratory of Forestry of Shaanxi Province, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China
- College of Horticulture and Forestry, Tarim University, Alar 843300, China
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Jiao Y, Li X, Huang X, Liu F, Zhang Z, Cao L. The Identification of SQS/ SQE/ OSC Gene Families in Regulating the Biosynthesis of Triterpenes in Potentilla anserina. Molecules 2023; 28:2782. [PMID: 36985754 PMCID: PMC10051230 DOI: 10.3390/molecules28062782] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
The tuberous roots of Potentilla anserina (Pan) are an edible and medicinal resource in Qinghai-Tibetan Plateau, China. The triterpenoids from tuberous roots have shown promising anti-cancer, hepatoprotective, and anti-inflammatory properties. In this study, we carried out phylogenetic analysis of squalene synthases (SQSs), squalene epoxidases (SQEs), and oxidosqualene cyclases (OSCs) in the pathway of triterpenes. In total, 6, 26, and 20 genes of SQSs, SQEs, and OSCs were retrieved from the genome of Pan, respectively. Moreover, 6 SQSs and 25 SQEs genes expressed in two sub-genomes (A and B) of Pan. SQSs were not expanded after whole-genome duplication (WGD), and the duplicated genes were detected in SQEs. Twenty OSCs were divided into two clades of cycloartenol synthases (CASs) and β-amyrin synthases (β-ASs) by a phylogenetic tree, characterized with gene duplication and evolutionary divergence. We speculated that β-ASs and CASs may participate in triterpenes synthesis. The data presented act as valuable references for future studies on the triterpene synthetic pathway of Pan.
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Affiliation(s)
- Yangmiao Jiao
- Hunan Provincial Key Laboratory of Dong Medicine, Ethnic Medicine Research Center, Hunan University of Medicine, Huaihua 418000, China; (Y.J.); (X.L.); (X.H.); (F.L.)
- Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, School of Pharmacy, Hunan University of Medicine, Huaihua 418000, China
| | - Xu Li
- Hunan Provincial Key Laboratory of Dong Medicine, Ethnic Medicine Research Center, Hunan University of Medicine, Huaihua 418000, China; (Y.J.); (X.L.); (X.H.); (F.L.)
| | - Xueshuang Huang
- Hunan Provincial Key Laboratory of Dong Medicine, Ethnic Medicine Research Center, Hunan University of Medicine, Huaihua 418000, China; (Y.J.); (X.L.); (X.H.); (F.L.)
- Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, School of Pharmacy, Hunan University of Medicine, Huaihua 418000, China
| | - Fan Liu
- Hunan Provincial Key Laboratory of Dong Medicine, Ethnic Medicine Research Center, Hunan University of Medicine, Huaihua 418000, China; (Y.J.); (X.L.); (X.H.); (F.L.)
| | - Zaiqi Zhang
- Hunan Provincial Key Laboratory of Dong Medicine, Ethnic Medicine Research Center, Hunan University of Medicine, Huaihua 418000, China; (Y.J.); (X.L.); (X.H.); (F.L.)
| | - Liang Cao
- Hunan Provincial Key Laboratory of Dong Medicine, Ethnic Medicine Research Center, Hunan University of Medicine, Huaihua 418000, China; (Y.J.); (X.L.); (X.H.); (F.L.)
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Chen H, Chen C, Huang S, Zhao M, Wang T, Jiang T, Wang C, Tao Z, Zhang Y, Wang Y, Wang W, Tang Q, Li P. Inactivation of RPX1 in Arabidopsis confers resistance to Plutella xylostella through the accumulation of the homoterpene DMNT. Plant Cell Environ 2023; 46:946-961. [PMID: 36582057 PMCID: PMC10107731 DOI: 10.1111/pce.14528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 12/19/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
The lepidopteran crop pest Plutella xylostella causes severe constraints on Brassica cultivation. Here, we report a novel role for RPX1 (resistance to P. xylostella) in resistance to this pest in Arabidopsis thaliana. The rpx1-1 mutant repels P. xylostella larvae, and feeding on the rpx1-1 mutant severely damages the peritrophic matrix structure in the midgut of the larvae, thereby negatively affecting larval growth and pupation. This resistance results from the accumulation of defence compounds, including the homoterpene (3E)-4,8-dimethyl-1,3,7-nonatriene (DMNT), due to the upregulation of PENTACYCLIC TRITERPENE SYNTHASE 1 (PEN1), which encodes a key DMNT biosynthetic enzyme. P. xylostella infestation and wounding induce RPX1 protein degradation, which may confer a rapid response to insect infestation. RPX1 inactivation and PEN1 overexpression are not associated with negative trade-offs for plant growth but have much higher seed production than the wild-type in the presence of P. xylostella infestation. This study offers a new strategy for plant molecular breeding against P. xylostella.
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Affiliation(s)
- Hongyi Chen
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life SciencesAnhui Agricultural UniversityHefeiChina
| | - Chen Chen
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life SciencesAnhui Agricultural UniversityHefeiChina
- Department of Microbiology, the Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoonoses of High Institutions in Anhui, School of Basic Medical SciencesAnhui Medical UniversityHefeiChina
| | - Shijie Huang
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life SciencesAnhui Agricultural UniversityHefeiChina
| | - Mengjie Zhao
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life SciencesAnhui Agricultural UniversityHefeiChina
| | - Tengyue Wang
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life SciencesAnhui Agricultural UniversityHefeiChina
| | - Taoshan Jiang
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life SciencesAnhui Agricultural UniversityHefeiChina
| | - Chuanhong Wang
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life SciencesAnhui Agricultural UniversityHefeiChina
| | - Zhen Tao
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life SciencesAnhui Agricultural UniversityHefeiChina
| | - Yan Zhang
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life SciencesAnhui Agricultural UniversityHefeiChina
| | - Yunhe Wang
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life SciencesAnhui Agricultural UniversityHefeiChina
| | - Wanyi Wang
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life SciencesAnhui Agricultural UniversityHefeiChina
| | - Qingfeng Tang
- Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, School of Plant ProtectionAnhui Agricultural UniversityHefeiChina
| | - Peijin Li
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life SciencesAnhui Agricultural UniversityHefeiChina
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Wen C, Zhang Z, Shi Q, Duan X, Du J, Wu C, Li X. Methyl Jasmonate- and Salicylic Acid-Induced Transcription Factor ZjWRKY18 Regulates Triterpenoid Accumulation and Salt Stress Tolerance in Jujube. Int J Mol Sci 2023; 24:ijms24043899. [PMID: 36835319 PMCID: PMC9965381 DOI: 10.3390/ijms24043899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/09/2023] [Accepted: 02/12/2023] [Indexed: 02/17/2023] Open
Abstract
Triterpenoids are important, pharmacologically active substances in jujube (Ziziphus jujuba Mill.), and play an important role in the plant's resistance to abiotic stress. However, regulation of their biosynthesis, and the underlying mechanism of their balance with stress resistance, remain poorly understood. In this study, we screened and functionally characterized the ZjWRKY18 transcription factor, which is associated with triterpenoid accumulation. The transcription factor is induced by methyl jasmonate and salicylic acid, and its activity was observed by gene overexpression and silencing experiments, combined with analyses of transcripts and metabolites. ZjWRKY18 gene silencing decreased the transcription of triterpenoid synthesis pathway genes and the corresponding triterpenoid content. Overexpression of the gene promoted the biosynthesis of jujube triterpenoids, as well as triterpenoids in tobacco and Arabidopsis thaliana. In addition, ZjWRKY18 binds to W-box sequences to activate promoters of 3-hydroxy-3-methyl glutaryl coenzyme A reductase and farnesyl pyrophosphate synthase, suggesting that ZjWRKY18 positively regulates the triterpenoid synthesis pathway. Overexpression of ZjWRKY18 also increased tolerance to salt stress in tobacco and Arabidopsis thaliana. These results highlight the potential use of ZjWRKY18 to improve triterpenoid biosynthesis and salt stress tolerance in plants, and provide a strong basis for metabolic engineering to improve the content of triterpenoids and breeding of jujube varieties that are resistant to stress.
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Affiliation(s)
- Cuiping Wen
- College of Forestry, Northwest Agriculture and Forestry University, Xianyang 712100, China
- Research Center for Jujube Engineering and Technology of National Forestry and Grassland Administration, Northwest Agriculture and Forestry University, Xianyang 712100, China
| | - Zhong Zhang
- College of Forestry, Northwest Agriculture and Forestry University, Xianyang 712100, China
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
| | - Qianqian Shi
- College of Forestry, Northwest Agriculture and Forestry University, Xianyang 712100, China
- Research Center for Jujube Engineering and Technology of National Forestry and Grassland Administration, Northwest Agriculture and Forestry University, Xianyang 712100, China
| | - Xiaoshan Duan
- College of Forestry, Northwest Agriculture and Forestry University, Xianyang 712100, China
- Research Center for Jujube Engineering and Technology of National Forestry and Grassland Administration, Northwest Agriculture and Forestry University, Xianyang 712100, China
| | - Jiangtao Du
- College of Forestry, Northwest Agriculture and Forestry University, Xianyang 712100, China
| | - Cuiyun Wu
- College of Horticulture and Forestry, Tarim University, Alar 843300, China
| | - Xingang Li
- College of Forestry, Northwest Agriculture and Forestry University, Xianyang 712100, China
- Research Center for Jujube Engineering and Technology of National Forestry and Grassland Administration, Northwest Agriculture and Forestry University, Xianyang 712100, China
- College of Horticulture and Forestry, Tarim University, Alar 843300, China
- Correspondence:
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Huang R, Wu D, Ji Z, Fan B, She Y, Zhang X, Duan L, Shen Q. Characterization of a Group of 2,3-Oxidosqualene Cyclase Genes Involved in the Biosynthesis of Diverse Triterpenoids of Perilla frutescens. J Agric Food Chem 2023; 71:2523-2531. [PMID: 36705014 DOI: 10.1021/acs.jafc.2c07716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Perilla frutescens (L.), a traditional edible and medicinal crop, contains diverse triterpenes with multiple pharmacological properties. However, the biosynthesis of triterpenes in perilla remains rarely revelation. In this study, nine putative 2,3-oxidosqualene cyclase (OSC) genes (PfOSC1-9) were screened from the P. frutescens genome and functionally characterized by heterologous expression. Camelliol C, a triterpenol with pharmacological effect, was first identified as abundant in perilla seeds, and the camelliol C synthase (PfOSC7) was first identified in P. frutescens utilizing a yeast system. In addition, PfOSC2, PfOSC4, and PfOSC9 were identified as cycloartenol, lupeol, and β-amyrin synthase, respectively. Molecular docking and site-directed mutagenesis revealed that changes in Leu253 of PfOSC4, Ala480 of PfOSC7, and Trp257 of PfOSC9 might lead to variations of catalytic specificity or efficiency. These results will provide key insights into the biosynthetic pathways of triterpenoids and have great significance for germplasm breeding in P. frutescens.
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Affiliation(s)
- Ruoshi Huang
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P. R. China
| | - Duan Wu
- Institute of Medical Plant Physiology and Ecology, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P. R. China
| | - Zhongju Ji
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P. R. China
| | - Baolian Fan
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P. R. China
| | - Yaru She
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P. R. China
| | - Xiande Zhang
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P. R. China
| | - Lixin Duan
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P. R. China
| | - Qi Shen
- Institute of Medical Plant Physiology and Ecology, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P. R. China
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Ma R, Yang P, Jing C, Fu B, Teng X, Zhao D, Sun L. Comparison of the metabolomic and proteomic profiles associated with triterpene and phytosterol accumulation between wild and cultivated ginseng. Plant Physiol Biochem 2023; 195:288-299. [PMID: 36652850 DOI: 10.1016/j.plaphy.2023.01.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 12/02/2022] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
Wild ginseng is thought to be superior in its medicinal quality to cultivated ginseng, potentially owing to the differences in active components. This study was designed accordingly to assess the differences in secondary metabolite components and their synthesis in wild and cultivated ginseng by using quantitative proteomics combined with secondary metabolomics approaches. A total of 72 secondary metabolites were found to be differentially abundant, of which dominant abundant in wild ginseng primarily included triterpenoid saponins (ginsenosides) and phytosterols. Ginsenoside diversity was increased in wild ginseng, particularly with respect to rare ginsenosides. Ginsenoside Rk1, F1, Rg5, Rh1, PPT, Rh2, and CK enriched in wild ginseng were validated by HPLC. In addition to ginsenosides, stigmasterol and β-sitosterol were accumulated in wild ginseng. 102 differentially expressed proteins between wild and cultivated ginseng were identified using iTRAQ labeling technique. Among them, 25 were related to secondary metabolism, mainly involved in sesquiterpene and triterpene biosynthesis, which was consistent with metabolomics results. Consistently, the activity levels of HMGR, FDPS, SS, SE, DS, CYP450, GT and CAS, which are key enzymes related to ginsenoside and phytosterol biosynthesis, were confirmed to be elevated in wild ginseng.The biosynthesis of ginsenosides and phytosterols in wild ginseng is higher than that in cultivated ginseng, which may be related to natural growth without artificial domestication. To some extent, this study explained the accumulation of pharmacodynamic components and overall quality of ginseng, which could provide reference for the germplasm improvement and planting of ginseng.
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Affiliation(s)
- Rui Ma
- Research Center of Traditional Chinese Medicine, Affiliated Hospital, Changchun University of Chinese Medicine, Changchun, Jilin Province, 130021, China
| | - Pengdi Yang
- Jilin Technology Innovation Center for Chinese Medicine Biotechnology, Beihua University, 15 Jilin Street, Jilin, Jilin Province, 132013, China
| | - Chenxu Jing
- Research Center of Traditional Chinese Medicine, Affiliated Hospital, Changchun University of Chinese Medicine, Changchun, Jilin Province, 130021, China
| | - Baoyu Fu
- Research Center of Traditional Chinese Medicine, Affiliated Hospital, Changchun University of Chinese Medicine, Changchun, Jilin Province, 130021, China
| | - Xiaoyu Teng
- Jilin Technology Innovation Center for Chinese Medicine Biotechnology, Beihua University, 15 Jilin Street, Jilin, Jilin Province, 132013, China
| | - Daqing Zhao
- Research Center of Traditional Chinese Medicine, Affiliated Hospital, Changchun University of Chinese Medicine, Changchun, Jilin Province, 130021, China; Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun, Jilin Province, 130021, China
| | - Liwei Sun
- Research Center of Traditional Chinese Medicine, Affiliated Hospital, Changchun University of Chinese Medicine, Changchun, Jilin Province, 130021, China; Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun, Jilin Province, 130021, China.
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Kumar A, Sharma S, Mishra S, Ojha S, Upadhyay P. ADME Prediction, Structure-activity Relationship of Boswellic Acid Scaffold for the Aspect of Anticancer & Anti-inflammatory Potency. Anticancer Agents Med Chem 2023; 23:1499-1505. [PMID: 37070442 DOI: 10.2174/1871520623666230417080437] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 01/12/2023] [Accepted: 02/09/2023] [Indexed: 04/19/2023]
Abstract
Nature is the chief source of various remedies which are used to cure various diseases. Boswellic acid (BA) is a secondary metabolite from the pentacyclic terpenoid compound groups that are derived from the plant genus Boswellia. The oleo gum resins of these plants are primarily composed of polysaccharides, with the remaining amounts of resin (30-60%) and essential oils (5-10%) soluble in organic solvents. BA and its analogs are also reported to exhibit various in vivo and biological responses for example anti-inflammatory, anti-tumor, free radical scavenging activity, etc. Among all analogs, 11-keto-β-boswellic acid (KBA) and 3-O-acetyl-11-keto-β-boswellic acid (AKBA) has been demonstrated to be the most effective at reducing cytokine production and inhibiting the inflammatory responsecausing enzymes. In this review, we summarized the computational ADME prediction via the SwissADME computational tool and the structure-activity relationship of the Boswellic acid scaffold for the aspect of anticancer and antiinflammatory potency. In addition to these research findings which are associated with the therapy of acute inflammation and some cancers, the potential of boswellic acids against other disorders was also discussed.
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Affiliation(s)
- Akhalesh Kumar
- Department of Pharmacy, Maharishi University of Information Technology, Lucknow, India
| | | | - Sudhanshu Mishra
- Department of Pharmaceutical Science & Technology, Madan Mohan Malaviya University of Technology, Gorakhpur, India
| | - Smriti Ojha
- Department of Pharmaceutical Science & Technology, Madan Mohan Malaviya University of Technology, Gorakhpur, India
| | - Pawan Upadhyay
- Department of Pharmacy, Maharishi University of Information Technology, Lucknow, India
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50
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Liu T, Liao J, Shi M, Li L, Liu Q, Cui X, Ning W, Kai G. A jasmonate-responsive bHLH transcription factor TaMYC2 positively regulates triterpenes biosynthesis in Taraxacum antungense Kitag. Plant Sci 2023; 326:111506. [PMID: 36283577 DOI: 10.1016/j.plantsci.2022.111506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 09/18/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Dandelion is a well-known traditional medical herb, also used as functional food. Dandelion possesses many medical properties, such as anti-bacterial and antioxidant activity and contains a variety of triterpenes, such as α-amyrin, β-amyrin, taraxerol and taraxasterol. In this study, we found that triterpenes biosynthesis was promoted by methyl jasmonate (MeJA), while the transcriptional mechanism underlying triterpenes biosynthesis was rarely investigated. Here, a MeJA-induced bHLH transcription factor TaMYC2 was identified. The content of taraxasterol and taraxerol in dandelion was obviously enhanced in overexpression TaMYC2 transgenic lines and expression level of the squalene synthase gene (TaSS) was elevated to about 3-5 folds compared with the control lines. Dual-LUC, Y1H and EMSA experiments revealed that TaMYC2 bound to the E-box motif in the promoter of TaSS and activated its transcription. Taken together, this study suggested that TaMYC2 acted as a positive regulator for bioengineering approaches to produce high content triterpenes-producing dandelions.
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Affiliation(s)
- Tingyao Liu
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Jingjing Liao
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, PR China
| | - Min Shi
- Laboratory for Core Technology of TCM Quality Improvement and Transformation, School of Pharmaceutical Sciences, The Third Affiliated Hospital, School of Pharmacy and Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou 311402, PR China
| | - Li Li
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Qun Liu
- Laboratory for Core Technology of TCM Quality Improvement and Transformation, School of Pharmaceutical Sciences, The Third Affiliated Hospital, School of Pharmacy and Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou 311402, PR China; Institute o f Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem.SunYat-Sen), Nanjing 210014, PR China
| | - Xin Cui
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Wei Ning
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, PR China.
| | - Guoyin Kai
- Laboratory for Core Technology of TCM Quality Improvement and Transformation, School of Pharmaceutical Sciences, The Third Affiliated Hospital, School of Pharmacy and Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou 311402, PR China.
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