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Li P, Huang C, Niu T, Yang X, Guan H, Ding L, Yang L, Wang Z, Pu Z, Wang R. Characterization and protein engineering of a novel UDP-glycosyltransferase involved in pseudoginsenoside Rt5 biosynthesis from Panax japonicus. Int J Biol Macromol 2024; 277:134537. [PMID: 39111463 DOI: 10.1016/j.ijbiomac.2024.134537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 07/15/2024] [Accepted: 08/04/2024] [Indexed: 08/12/2024]
Abstract
As one of rare high-value ocotillol (OCT)-type ginsenosides, pseudoginsenoside Rt5 has been identified with significant pharmacological activities. UDP-glycosyltransferases (UGTs) play pivotal roles in catalyzing the transfer of a glycosyl moiety from a donor to an acceptor. In this study, the novel UGT, PjUGT10, was screened from the transcriptome database of Panax japonicus and identified with the enzymatic activity of transferring a glucosyl group on OCT to produce Rt5. The catalytic efficiency of PjUGT10 was further enhanced by employing site-directed mutation. Notably, the variant M7 exhibited a remarkable 6.16 × 103-fold increase in kcat/Km towards 20S,24R-ocotillol and a significant 2.02 × 103-fold increase to UDP-glucose, respectively. Moreover, molecular dynamics simulations illustrated a reduced distance between 20S,24R-ocotillol and the catalytic residue His15 or UDP-glucose, favoring conformation interactions between the enzyme and substrates. Subsequently, Rt5 was synthesized in an engineered Escherichia coli strain M7 coupled with a UDP-glucose synthetic system. This study not only shed light on the protein engineering that can enhance the catalytic activity of PjUGT10, but also established a whole-cell approach for the production of Rt5.
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Affiliation(s)
- Pengfei Li
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Chaokang Huang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Tengfei Niu
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xiaolin Yang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Huida Guan
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Lili Ding
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Li Yang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhengtao Wang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhongji Pu
- Xianghu laboratory, Hangzhou 311231, China
| | - Rufeng Wang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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Chen Q, Lei J, Li X, Zhang J, Liu D, Cui X, Ge F. Heterologous synthesis of ginsenoside F1 and its precursors in Nicotiana benthamiana. JOURNAL OF PLANT PHYSIOLOGY 2024; 299:154276. [PMID: 38801806 DOI: 10.1016/j.jplph.2024.154276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 05/15/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
Ginsenoside F1 has high medicinal values, which is a kind of rare triterpene saponin isolated from Panax plants. The extremely low content of ginsenoside F1 in herbs has limited its research and application in medical field. In this work, we constructed a pathway in tobacco for the biosynthesis of ginsenoside F1 by metabolic engineering. Four enzyme genes (PnDDS, CYP716A47, CYP716S1 and UGT71A56) isolated from Panax notoginseng were introduced into tobacco. Thus, a biosynthetic pathway for ginsenoside F1 synthesis was artificially constructed in tobacco cells; moreover, the four exogenous genes could be expressed in the roots, stems and leaves of transgenic plants. Consequently, ginsenoside F1 and its precursors were successfully synthesized in the transgenic tobacco, compared with Panax plants, the content of ginsenoside F1 in transgenic tobacco was doubled. In addition, accumulation of ginsenoside F1 and its precursors in transgenic tobacco shows organ specificity. Based on these results, a new approach was established to produce rare ginsenoside F1; meanwhile, such strategy could also be employed in plant hosts for the heterologous synthesis of other important or rare natural products.
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Affiliation(s)
- Qin Chen
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Jun Lei
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Xiaolei Li
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China; Analytical & Testing Research Center, Kunming University of Science and Technology, Kunming, 650500, China
| | - Jinyu Zhang
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, 650205, China
| | - Diqiu Liu
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Xiuming Cui
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Beijing, 100700, China.
| | - Feng Ge
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Beijing, 100700, China.
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Liu S, Chen X, Zhao T, Yu J, Chen P, Wang Y, Wang K, Zhao M, Jiang Y, Wang Y, Zhang M. Identification of PgRg1-3 Gene for Ginsenoside Rg1 Biosynthesis as Revealed by Combining Genome-Wide Association Study and Gene Co-Expression Network Analysis of Jilin Ginseng Core Collection. PLANTS (BASEL, SWITZERLAND) 2024; 13:1784. [PMID: 38999623 PMCID: PMC11244481 DOI: 10.3390/plants13131784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/21/2024] [Accepted: 06/22/2024] [Indexed: 07/14/2024]
Abstract
Ginseng, an important medicinal plant, is characterized by its main active component, ginsenosides. Among more than 40 ginsenosides, Rg1 is one of the ginsenosides used for measuring the quality of ginseng. Therefore, the identification and characterization of genes for Rg1 biosynthesis are important to elucidate the molecular basis of Rg1 biosynthesis. In this study, we utilized 39,327 SNPs and the corresponding Rg1 content from 344 core ginseng cultivars from Jilin Province. We conducted a genome-wide association study (GWAS) combining weighted gene co-expression network analysis (WGCNA), SNP-Rg1 content association analysis, and gene co-expression network analysis; three candidate Rg1 genes (PgRg1-1, PgRg1-2, and PgRg1-3) and one crucial candidate gene (PgRg1-3) were identified. Functional validation of PgRg1-3 was performed using methyl jasmonate (MeJA) regulation and RNAi, confirming that this gene regulates Rg1 biosynthesis. The spatial-temporal expression patterns of the PgRg1-3 gene and known key enzyme genes involved in ginsenoside biosynthesis differ. Furthermore, variations in their networks have a significant impact on Rg1 biosynthesis. This study established an accurate and efficient method for identifying candidate genes, cloned a novel gene controlling Rg1 biosynthesis, and identified 73 SNPs significantly associated with Rg1 content. This provides genetic resources and effective tools for further exploring the molecular mechanisms of Rg1 biosynthesis and molecular breeding.
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Affiliation(s)
- Sizhang Liu
- College of Life Science, Jilin Agricultural University, Changchun 130118, China
| | - Xiaxia Chen
- College of Life Science, Jilin Agricultural University, Changchun 130118, China
| | - Tianqi Zhao
- College of Life Science, Jilin Agricultural University, Changchun 130118, China
| | - Jinghui Yu
- College of Life Science, Jilin Agricultural University, Changchun 130118, China
| | - Ping Chen
- College of Life Science, Jilin Agricultural University, Changchun 130118, China
- Research Center for Ginseng Genetic Resources Development and Utilization, Jilin Province, Jilin Agricultural University, Changchun 130118, China
| | - Yanfang Wang
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Kangyu Wang
- College of Life Science, Jilin Agricultural University, Changchun 130118, China
- Research Center for Ginseng Genetic Resources Development and Utilization, Jilin Province, Jilin Agricultural University, Changchun 130118, China
| | - Mingzhu Zhao
- College of Life Science, Jilin Agricultural University, Changchun 130118, China
- Research Center for Ginseng Genetic Resources Development and Utilization, Jilin Province, Jilin Agricultural University, Changchun 130118, China
| | - Yue Jiang
- College of Life Science, Jilin Agricultural University, Changchun 130118, China
| | - Yi Wang
- College of Life Science, Jilin Agricultural University, Changchun 130118, China
- Research Center for Ginseng Genetic Resources Development and Utilization, Jilin Province, Jilin Agricultural University, Changchun 130118, China
| | - Meiping Zhang
- College of Life Science, Jilin Agricultural University, Changchun 130118, China
- Research Center for Ginseng Genetic Resources Development and Utilization, Jilin Province, Jilin Agricultural University, Changchun 130118, China
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Zhou M, Fan J, Gao Y, Zheng C, Xu Y, Jia L, An X, Chen Z. Identification and analysis of UGT genes associated with triterpenoid saponin in soapberry (Sapindus mukorossi Gaertn.). BMC PLANT BIOLOGY 2024; 24:588. [PMID: 38902602 PMCID: PMC11191301 DOI: 10.1186/s12870-024-05281-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 06/10/2024] [Indexed: 06/22/2024]
Abstract
BACKGROUND Soapberry (Sapindus mukorossi) is an economically important multifunctional tree species. Triterpenoid saponins have many functions in soapberry. However, the types of uridine diphosphate (UDP) glucosyltransferases (UGTs) involved in the synthesis of triterpenoid saponins in soapberry have not been clarified. RESULTS In this study, 42 SmUGTs were identified in soapberry, which were unevenly distributed on 12 chromosomes and had sequence lengths of 450 bp to 1638 bp, with an average of 1388 bp. The number of amino acids in SmUGTs was 149 to 545, with an average of 462. Most SmUGTs were acidic and hydrophilic unstable proteins, and their secondary structures were mainly α-helices and random coils. All had conserved UDPGT and PSPG-box domains. Phylogenetic analysis divided them into four subclasses, which glycosylated different carbon atoms. Prediction of cis-acting elements suggested roles of SmUGTs in plant development and responses to environmental stresses. The expression patterns of SmUGTs differed according to the developmental stage of fruits, as determined by transcriptomics and RT-qPCR. Co-expression network analysis of SmUGTs and related genes/transcription factors in the triterpenoid saponin synthesis pathway was also performed. The results indicated potential roles for many transcription factors, such as SmERFs, SmGATAs and SmMYBs. A correlation analysis showed that 42 SmUGTs were crucial in saponin synthesis in soapberry. CONCLUSIONS Our findings suggest optimal targets for manipulating glycosylation in soapberry triterpenoid saponin biosynthesis; they also provide a theoretical foundation for further evaluation of the functions of SmUGTs and analyses of their biosynthetic mechanisms.
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Affiliation(s)
- Mingzhu Zhou
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Jialin Fan
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Yuhan Gao
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Chunyuan Zheng
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Yuanyuan Xu
- College of Forestry, Guangxi University, Nanning, 530004, China
| | - Liming Jia
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Xinmin An
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Zhong Chen
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China.
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5
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Ji Q, Liu Y, Chen C, Zhang H, Wang J, Mei K. Expression, purification, characterization and crystallization of Panax quinquefolius ginsenoside glycosyltransferase Pq3-O-UGT2. Protein Expr Purif 2024; 216:106430. [PMID: 38184160 DOI: 10.1016/j.pep.2024.106430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 01/01/2024] [Accepted: 01/03/2024] [Indexed: 01/08/2024]
Abstract
Pq3-O-UGT2, derived from Panax quinquefolius, functions as a ginsenoside glucosyltransferase, utilizing UDP-glucose (UDPG) as the sugar donor to catalyze the glycosylation of Rh2 and F2. An essential step in comprehending its catalytic mechanism involves structural analysis. In preparation for structural analysis, we expressed Pq3-O-UGT2 in the Escherichia coli (E. coli) strain Rosetta (DE3). The recombinant Pq3-O-UGT2 was purified through Ni-NTA affinity purification, a two-step ion exchange chromatography, and subsequently size-exclusion chromatography (SEC). Notably, the purified Pq3-O-UGT2 showed substantial activity toward Rh2 and F2, catalyzing the formation of Rg3 and Rd, respectively. This activity was discernible within a pH range of 4.0-9.0 and temperature range of 30-55 °C, with optimal conditions observed at pH 7.0-8.0 and 37 °C. The catalytic efficiency of Pq3-O-UGT2 toward Rh2 and F2 was 31.43 s-1 mΜ-1 and 169.31 s-1 mΜ-1, respectively. We further crystalized Pq3-O-UGT2 in both its apo form and co-crystalized forms with UDPG, Rh2 and F2, respectively. High-quality crystals were obtained and X-ray diffraction data was collected for all co-crystalized samples. Analysis of the diffraction data revealed that the crystal of Pq3-O-UGT2 co-crystalized with UDP-Glc belonged to space group P1, while the other two crystals belonged to space group P212121. Together, this study has laid a robust foundation for subsequent structural analysis of Pq3-O-UGT2.
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Affiliation(s)
- Qiushuang Ji
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China.
| | - Yirong Liu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China.
| | - Cheng Chen
- School of Life Sciences, Tianjin University, Tianjin, 300072, China.
| | - Huanyu Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China.
| | - Juan Wang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China.
| | - Kunrong Mei
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China.
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Yuan X, Li R, He W, Xu W, Xu W, Yan G, Xu S, Chen L, Feng Y, Li H. Progress in Identification of UDP-Glycosyltransferases for Ginsenoside Biosynthesis. JOURNAL OF NATURAL PRODUCTS 2024. [PMID: 38449105 DOI: 10.1021/acs.jnatprod.3c00630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Ginsenosides, the primary pharmacologically active constituents of the Panax genus, have demonstrated a variety of medicinal properties, including anticardiovascular disease, cytotoxic, antiaging, and antidiabetes effects. However, the low concentration of ginsenosides in plants and the challenges associated with their extraction impede the advancement and application of ginsenosides. Heterologous biosynthesis represents a promising strategy for the targeted production of these natural active compounds. As representative triterpenoids, the biosynthetic pathway of the aglycone skeletons of ginsenosides has been successfully decoded. While the sugar moiety is vital for the structural diversity and pharmacological activity of ginsenosides, the mining of uridine diphosphate-dependent glycosyltransferases (UGTs) involved in ginsenoside biosynthesis has attracted a lot of attention and made great progress in recent years. In this paper, we summarize the identification and functional study of UGTs responsible for ginsenoside synthesis in both plants, such as Panax ginseng and Gynostemma pentaphyllum, and microorganisms including Bacillus subtilis and Saccharomyces cerevisiae. The UGT-related microbial cell factories for large-scale ginsenoside production are also mentioned. Additionally, we delve into strategies for UGT mining, particularly potential rapid screening or identification methods, providing insights and prospects. This review provides insights into the study of other unknown glycosyltransferases as candidate genetic elements for the heterologous biosynthesis of rare ginsenosides.
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Affiliation(s)
- Xiaoxuan Yuan
- Institute of Structural Pharmacology & TCM Chemical Biology, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Ruiqiong Li
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Weishen He
- Department of Biology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Wei Xu
- Institute of Structural Pharmacology & TCM Chemical Biology, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Wen Xu
- Innovation and Transformation Center, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Guohong Yan
- Pharmacy Department, People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350004, China
| | - Shaohua Xu
- Institute of Structural Pharmacology & TCM Chemical Biology, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
- State Key Laboratory of Dao-di Herbs, Beijing 100700, China
| | - Lixia Chen
- Institute of Structural Pharmacology & TCM Chemical Biology, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Yaqian Feng
- Innovation and Transformation Center, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Hua Li
- Institute of Structural Pharmacology & TCM Chemical Biology, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
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Tian L, Gao R, Cai Y, Chen J, Dong H, Chen S, Yang Z, Wang Y, Huang L, Xu Z. A systematic review of ginsenoside biosynthesis, spatiotemporal distribution, and response to biotic and abiotic factors in American ginseng. Food Funct 2024; 15:2343-2365. [PMID: 38323507 DOI: 10.1039/d3fo03434h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
American ginseng (Panax quinquefolius) has gained recognition as a medicinal and functional food homologous product with several pharmaceutical, nutritional, and industrial applications. However, the key regulators involved in ginsenoside biosynthesis, the spatiotemporal distribution characteristics of ginsenosides, and factors influencing ginsenosides are largely unknown, which make it challenging to enhance the quality and chemical extraction processes of the cultivated American ginseng. This review presents an overview of the pharmacological effects, biosynthesis and spatiotemporal distribution of ginsenosides, with emphasis on the impacts of biotic and abiotic factors on ginsenosides in American ginseng. Modern pharmacological studies have demonstrated that American ginseng has neuroprotective, cardioprotective, antitumor, antidiabetic, and anti-obesity effects. Additionally, most genes involved in the upregulation of ginsenoside biosynthesis have been identified, while downstream regulators (OSCs, CYP450, and UGTs) require further investigation. Futhermore, limited knowledge exists regarding the molecular mechanisms of the impact of biotic and abiotic factors on ginsenosides. Notably, the nonmedicinal parts of American ginseng, particularly its flowers, fibrous roots, and leaves, exhibit higher ginsenoside content than its main roots and account for a considerable amount of weight in the whole plant, representing promising resources for ginsenosides. Herein, the prospects of molecular breeding and metabolic engineering based on multi-omics to improve the unstable quality of cultivated American ginseng and the shortage of ginsenosides are proposed. This review highlights the gaps in the current research on American ginseng and proposes solutions to address these limitations, providing a guide for future investigations into American ginseng ginsenosides.
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Affiliation(s)
- Lixia Tian
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Ranran Gao
- The Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100007, China
| | - Yuxiang Cai
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Junxian Chen
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Hongmei Dong
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Shanshan Chen
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, China Academy of Chinese Medical Sciences, Institute of Chinese Materia Medica, Beijing, 100700, China
| | - Zaichang Yang
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Yu Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China.
| | - Linfang Huang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China.
| | - Zhichao Xu
- College of Life Science, Northeast Forestry University, Harbin, 150006, China.
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8
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Zhang H, Che X, Jing H, Su Y, Yang W, Wang R, Zhang G, Meng J, Yuan W, Wang J, Gao W. A New Potent Inhibitor against α-Glucosidase Based on an In Vitro Enzymatic Synthesis Approach. Molecules 2024; 29:878. [PMID: 38398628 PMCID: PMC10893485 DOI: 10.3390/molecules29040878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Inhibiting the activity of intestinal α-glucosidase is considered an effective approach for treating type II diabetes mellitus (T2DM). In this study, we employed an in vitro enzymatic synthesis approach to synthesize four derivatives of natural products (NPs) for the discovery of therapeutic drugs for T2DM. Network pharmacology analysis revealed that the betulinic acid derivative P3 exerted its effects in the treatment of T2DM through multiple targets. Neuroactive ligand-receptor interaction and the calcium signaling pathway were identified as key signaling pathways involved in the therapeutic action of compound P3 in T2DM. The results of molecular docking, molecular dynamics (MD) simulations, and binding free energy calculations indicate that compound P3 exhibits a more stable binding interaction and lower binding energy (-41.237 kcal/mol) with α-glucosidase compared to acarbose. In addition, compound P3 demonstrates excellent characteristics in various pharmacokinetic prediction models. Therefore, P3 holds promise as a lead compound for the development of drugs for T2DM and warrants further exploration. Finally, we performed site-directed mutagenesis to achieve targeted synthesis of betulinic acid derivative. This work demonstrates a practical strategy of discovering novel anti-hyperglycemic drugs from derivatives of NPs synthesized through in vitro enzymatic synthesis technology, providing potential insights into compound P3 as a lead compound for anti-hyperglycemic drug development.
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Affiliation(s)
- Huanyu Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; (H.Z.); (Y.S.); (W.Y.); (R.W.); (G.Z.); (J.M.); (W.Y.)
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Xiance Che
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 301600, China; (X.C.); (H.J.)
| | - Hongyan Jing
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 301600, China; (X.C.); (H.J.)
| | - Yaowu Su
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; (H.Z.); (Y.S.); (W.Y.); (R.W.); (G.Z.); (J.M.); (W.Y.)
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Wenqi Yang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; (H.Z.); (Y.S.); (W.Y.); (R.W.); (G.Z.); (J.M.); (W.Y.)
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Rubing Wang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; (H.Z.); (Y.S.); (W.Y.); (R.W.); (G.Z.); (J.M.); (W.Y.)
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Guoqi Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; (H.Z.); (Y.S.); (W.Y.); (R.W.); (G.Z.); (J.M.); (W.Y.)
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Jie Meng
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; (H.Z.); (Y.S.); (W.Y.); (R.W.); (G.Z.); (J.M.); (W.Y.)
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Wei Yuan
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; (H.Z.); (Y.S.); (W.Y.); (R.W.); (G.Z.); (J.M.); (W.Y.)
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Juan Wang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; (H.Z.); (Y.S.); (W.Y.); (R.W.); (G.Z.); (J.M.); (W.Y.)
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Wenyuan Gao
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; (H.Z.); (Y.S.); (W.Y.); (R.W.); (G.Z.); (J.M.); (W.Y.)
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
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9
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Yang S, Zhu G. Phytotherapy of abnormality of fear memory: A narrative review of mechanisms. Fitoterapia 2023; 169:105618. [PMID: 37482307 DOI: 10.1016/j.fitote.2023.105618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 07/25/2023]
Abstract
It is generally believed that in post-traumatic stress disorder (PTSD), the high expression of fear memory is mainly determined by amygdala hyperactivity and hippocampus hypoactivity. In this review, we firstly updated the mechanisms of fear memory, and then searched the experimental evidence of phytotherapy for fear memory in the past five years. Based on the summary of those experimental studies, we further discussed the future research strategies of plant medicines, including the study of the mechanism of specific brain regions, the optimal time for the prevention and treatment of fear memory-related diseases such as PTSD, and the development of new drugs with active components of plant medicines. Accordingly, plant medicines play a clear role in improving fear memory abnormalities and have the drug development potential in the treatment of fear-related disorders.
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Affiliation(s)
- Shaojie Yang
- The Second Affiliation Hospital of Anhui University of Chinese Medicine, Hefei, Anhui 230061, China; Key Laboratory of Xin'an Medicine, The Ministry of Education and Key Laboratory of Molecular Biology (Brain diseases), Anhui University of Chinese Medicine, Hefei, Anhui 230012, China
| | - Guoqi Zhu
- Key Laboratory of Xin'an Medicine, The Ministry of Education and Key Laboratory of Molecular Biology (Brain diseases), Anhui University of Chinese Medicine, Hefei, Anhui 230012, China.
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10
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Ran Z, Chen X, Li R, Duan W, Zhang Y, Fang L, Guo L, Zhou J. Transcriptomics and metabolomics reveal the changes induced by arbuscular mycorrhizal fungi in Panax quinquefolius L. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:4919-4933. [PMID: 36942522 DOI: 10.1002/jsfa.12563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 03/11/2023] [Accepted: 03/21/2023] [Indexed: 06/08/2023]
Abstract
BACKGROUND Panax quinquefolius L. is one of the most important foods and herbs because of its high nutritional value and medicinal potential. In our previous study we found that the ginsenoside content in P. quinquefolius was improved by arbuscular mycorrhizal fungi (AMFs). However, little research has been conducted on the molecular mechanisms in P. quinquefolius roots induced by AMFs colonization. To identify the metabolomic and transcriptomic mechanisms of P. quinquefolius induced by AMFs, non-mycorrhized (control) and mycorrhized (AMF) P. quinquefolius were used as experimental materials for comparative analysis of the transcriptome and metabolome. RESULTS Compared with the control, 182 metabolites and 545 genes were significantly changed at the metabolic and transcriptional levels in AMFs treatment. The metabolic pattern of AMFs was changed, and the contents of ginsenosides (Rb1, Rg2), threonine, and glutaric acid were significantly increased. There were significant differences in the expression of genes involved in plant hormone signal transduction, glutathione metabolism, and the plant-pathogen interaction pathway. In addition, several transcription factors from the NAC, WRKY, and basic helix-loop-helix families were identified in AMFs versus the control. Furthermore, the combined analysis of 'transcriptomics-metabolomics' analysis showed that 'Plant hormone signal transduction', 'Amino sugar and nucleotide sugar metabolism' and 'Glutathione metabolism' pathways were the important enriched pathways in response to AMFs colonization. CONCLUSION Overall, these results provide new insights into P. quinquefolius response to AMFs, which improve our understanding of the molecular mechanisms of P. quinquefolius induced by AMFs. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Zhifang Ran
- School of Biological Science and Technology, University of Jinan, Jinan, People's Republic of China
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, People's Republic of China
| | - Xiaoli Chen
- School of Biological Science and Technology, University of Jinan, Jinan, People's Republic of China
| | - Rui Li
- School of Biological Science and Technology, University of Jinan, Jinan, People's Republic of China
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, People's Republic of China
| | - Wanying Duan
- School of Biological Science and Technology, University of Jinan, Jinan, People's Republic of China
| | - Yongqing Zhang
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, People's Republic of China
| | - Lei Fang
- School of Biological Science and Technology, University of Jinan, Jinan, People's Republic of China
| | - Lanping Guo
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Jie Zhou
- School of Biological Science and Technology, University of Jinan, Jinan, People's Republic of China
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11
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Kim J, Yun Y, Huh J, Um Y, Shim D. Comparative transcriptome analysis on wild-simulated ginseng of different age revealed possible mechanism of ginsenoside accumulation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107870. [PMID: 37442050 DOI: 10.1016/j.plaphy.2023.107870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 06/21/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023]
Abstract
Panax ginseng is one of the most famous pharmaceutical plants in Asia. Ginseng plants grown in mountain have longer longevity which ensures higher accumulation of ginsenoside components than those grown in farms. However, wild-simulated ginseng over certain age cannot be easily distinguished in morphology. To identify transcriptomic mechanism of ginsenoside accumulation in older wild-simulated ginseng without large phenotype change, we performed comparative transcriptome analysis for leaf, shoot, and root tissues of 7-yr-old and 13yr-old wild-simulated ginseng. Of 559 differentially expressed genes (DEGs) in comparison between 7-yr-old and 13yr-old wild-simulated ginseng, 280 leaf-, 103 shoot-, and 164 root-mainly expressing genes were found to be changed in transcript level according to age. Functional analysis revealed that pentose-phosphate shunt and abscisic acid responsive genes were up-regulated in leaf tissues of 7-yr-old ginseng while defense responsive genes were up-regulated in root tissues of 13-yr-old ginseng. Quantitative real-time PCR revealed that jasmonic acid responsive genes, ERDL6, and some UGTs were up-regulated in 13-yr-old ginseng in higher order lateral root tissues. These data suggest that bacterial stimulation in mountain region can enhance the expression of several genes which might support minor ginsenoside biosynthesis.
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Affiliation(s)
- Jaewook Kim
- Department of Biological Sciences, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Yeongbae Yun
- Forest Medicinal Resources Research Center, National Institute of Forest Science, Yeongju, Gyeongbuk 36040, Republic of Korea
| | - Jeonghoon Huh
- Forest Medicinal Resources Research Center, National Institute of Forest Science, Yeongju, Gyeongbuk 36040, Republic of Korea
| | - Yurry Um
- Forest Medicinal Resources Research Center, National Institute of Forest Science, Yeongju, Gyeongbuk 36040, Republic of Korea.
| | - Donghwan Shim
- Department of Biological Sciences, Chungnam National University, Daejeon, 34134, Republic of Korea; Center for Genome Engineering, Institute for Basic Science, Daejeon, 34126, Republic of Korea.
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12
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Zhu L, Hu J, Li R, Liu C, Jiang Y, Liu T, Liu M, Zhao M, Wang Y, Wang K, Zhang M. Transcriptome-Wide Integrated Analysis of the PgGT25-04 Gene in Controlling Ginsenoside Biosynthesis in Panax ginseng. PLANTS (BASEL, SWITZERLAND) 2023; 12:1980. [PMID: 37653897 PMCID: PMC10224475 DOI: 10.3390/plants12101980] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/10/2023] [Accepted: 05/10/2023] [Indexed: 08/13/2023]
Abstract
Panax ginseng is a valuable medicinal herb of the Araliaceae family with various pharmacological activities. The Trihelix transcription factors family is involved in growth and secondary metabolic processes in plants, but no studies have been reported on the involvement of Trihelix genes in secondary metabolic processes in ginseng. In this study, weighted co-expression network analysis, correlation analysis between PgGTs and ginsenosides and key enzyme genes, and interaction network analysis between PgGTs and key enzyme genes were used to screen out the PgGT25-04 gene, which was negatively correlated with ginsenoside synthesis. Using ABA treatment of ginseng hair roots, PgGT genes were found to respond to ABA signals. Analysis of the sequence characteristics and expression pattern of the PgGT25-04 gene in ginseng revealed that its expression is spatiotemporally specific. The interfering vector pBI121-PgGT25-04 containing the PgGT25-04 gene was constructed, and the ginseng adventitious roots were transformed using the Agrobacterium-mediated method to obtain the pBI121-PgGT25-04 positive hairy root monocot line. The saponin contents of positive ginseng hair roots were measured by HPLC, and the changes in PgGT25-04 and key enzyme genes in positive ginseng hair roots were detected via fluorescence quantitative RT-PCR. These results preliminarily identified the role of the PgGT25-04 gene in the secondary metabolism of ginseng in Jilin to provide a theoretical basis for the study of Trihelix transcription factors in Panax ginseng.
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Affiliation(s)
- Lei Zhu
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Jian Hu
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Ruiqi Li
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Chang Liu
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Yang Jiang
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Tao Liu
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Mingming Liu
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Mingzhu Zhao
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun 130118, China
| | - Yi Wang
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun 130118, China
| | - Kangyu Wang
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun 130118, China
| | - Meiping Zhang
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun 130118, China
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13
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Mohanan P, Yang TJ, Song YH. Genes and Regulatory Mechanisms for Ginsenoside Biosynthesis. JOURNAL OF PLANT BIOLOGY = SINGMUL HAKHOE CHI 2023; 66:87-97. [PMID: 36714200 PMCID: PMC9867542 DOI: 10.1007/s12374-023-09384-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 05/13/2023]
Abstract
Panax ginseng is a medicinal plant belonging to the Araliaceae family. Ginseng is known as the king of oriental medicine, which has been practiced since ancient times in East Asian countries and globally in the modern era. Ginseng is used as an adaptogen, and research shows that it has several pharmacological benefits for various ailments such as cancer, inflammation, diabetes, and neurological symptoms. The pharmacological benefits of ginseng are attributed to the triterpenoid saponin ginsenosides found throughout the Panax ginseng species, which are abundant in its root and are found exclusively in P. ginseng and Panax quinquefolius. Recently, with the completion of the entire ginseng genome sequencing and the construction of the ginseng genome database, it has become possible to access information about many genes newly predicted to be involved in ginsenoside biosynthesis. This review briefly summarizes the current progress in ginseng genome analysis and genes involved in ginsenoside biosynthesis, proposing directions for functional studies of the predicted genes related to ginsenoside production and its regulation.
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Affiliation(s)
- Padmanaban Mohanan
- Plant Genomics and Breeding Research Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826 Korea
| | - Tae-Jin Yang
- Plant Genomics and Breeding Research Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826 Korea
- Department of Agriculture, Forestry and Bioresources, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826 Korea
- Research Institute of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826 Korea
| | - Young Hun Song
- Plant Genomics and Breeding Research Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826 Korea
- Research Institute of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826 Korea
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826 Korea
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14
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Koo H, Lee YS, Nguyen VB, Giang VNL, Koo HJ, Park HS, Mohanan P, Song YH, Ryu B, Kang KB, Sung SH, Yang TJ. Comparative transcriptome and metabolome analyses of four Panax species explore the dynamics of metabolite biosynthesis. J Ginseng Res 2023; 47:44-53. [PMID: 36644396 PMCID: PMC9834023 DOI: 10.1016/j.jgr.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 01/31/2022] [Accepted: 07/11/2022] [Indexed: 01/18/2023] Open
Abstract
Background The genus Panax in the Araliaceae family has been used as traditional medicinal plants worldwide and is known to biosynthesize ginsenosides and phytosterols. However, genetic variation between Panax species has influenced their biosynthetic pathways is not fully understood. Methods Simultaneous analysis of transcriptomes and metabolomes obtained from adventitious roots of two tetraploid species (Panax ginseng and P. quinquefolius) and two diploid species (P. notoginseng and P. vietnamensis) revealed the diversity of their metabolites and related gene expression profiles. Results The transcriptome analysis showed that 2,3-OXIDOSQUALENE CYCLASEs (OSCs) involved in phytosterol biosynthesis are upregulated in the diploid species, while the expression of OSCs contributing to ginsenoside biosynthesis is higher in the tetraploid species. In agreement with these results, the contents of dammarenediol-type ginsenosides were higher in the tetraploid species relative to the diploid species. Conclusion These results suggest that a whole-genome duplication event has influenced the triterpene biosynthesis pathway in tetraploid Panax species during their evolution or ecological adaptation. This study provides a basis for further efforts to explore the genetic variation of the Panax genus.
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Affiliation(s)
- Hyunjin Koo
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Yun Sun Lee
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Van Binh Nguyen
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Vo Ngoc Linh Giang
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Hyun Jo Koo
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Hyun-Seung Park
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Padmanaban Mohanan
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea,Department of Agricultural Biotechnology, Plant Genomics and Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Young Hun Song
- Department of Agricultural Biotechnology, Plant Genomics and Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Byeol Ryu
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Kyo Bin Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea,Research Institute of Pharmaceutical Sciences, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Sang Hyun Sung
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Tae-Jin Yang
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea,Corresponding author. Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
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15
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March of molecular breeding techniques in the genetic enhancement of herbal medicinal plants: present and future prospects. THE NUCLEUS 2022. [DOI: 10.1007/s13237-022-00406-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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16
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Yao L, Zhang H, Liu Y, Ji Q, Xie J, Zhang R, Huang L, Mei K, Wang J, Gao W. Engineering of triterpene metabolism and overexpression of the lignin biosynthesis gene PAL promotes ginsenoside Rg 3 accumulation in ginseng plant chassis. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2022; 64:1739-1754. [PMID: 35731022 DOI: 10.1111/jipb.13315] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 06/20/2022] [Indexed: 05/28/2023]
Abstract
The ginsenoside Rg3 found in Panax species has extensive pharmacological properties, in particular anti-cancer effects. However, its natural yield in Panax plants is limited. Here, we report a multi-modular strategy to improve yields of Rg3 in a Panax ginseng chassis, combining engineering of triterpene metabolism and overexpression of a lignin biosynthesis gene, phenylalanine ammonia lyase (PAL). We first performed semi-rational design and site mutagenesis to improve the enzymatic efficiency of Pq3-O-UGT2, a glycosyltransferase that directly catalyzes the biosynthesis of Rg3 from Rh2 . Next, we used clustered regularly interspaced palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) gene editing to knock down the branch pathway of protopanaxatriol-type ginsenoside biosynthesis to enhance the metabolic flux of the protopanaxadiol-type ginsenoside Rg3 . Overexpression of PAL accelerated the formation of the xylem structure, significantly improving ginsenoside Rg3 accumulation (to 6.19-fold higher than in the control). We combined overexpression of the ginsenoside aglycon synthetic genes squalene epoxidase, Pq3-O-UGT2, and PAL with CRISPR/Cas9-based knockdown of CYP716A53v2 to improve ginsenoside Rg3 accumulation. Finally, we produced ginsenoside Rg3 at a yield of 83.6 mg/L in a shake flask (7.0 mg/g dry weight, 21.12-fold higher than with wild-type cultures). The high-production system established in this study could be a potential platform to produce the ginsenoside Rg3 commercially for pharmaceutical use.
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Affiliation(s)
- Lu Yao
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, 325000, China
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, 300072, China
| | - Huanyu Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, 325000, China
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, 300072, China
| | - Yirong Liu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Qiushuang Ji
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Jing Xie
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Ru Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Luqi Huang
- National Resource Center for Chinese Meteria Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Kunrong Mei
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Juan Wang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, 325000, China
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, 300072, China
| | - Wenyuan Gao
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, 325000, China
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, 300072, China
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17
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DI P, YAN Y, WANG P, YAN M, WANG YP, HUANG LQ. Integrative SMRT sequencing and ginsenoside profiling analysis provide insights into the biosynthesis of ginsenoside in Panax quinquefolium. Chin J Nat Med 2022; 20:614-626. [DOI: 10.1016/s1875-5364(22)60198-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Indexed: 11/28/2022]
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18
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Using genome and transcriptome analysis to elucidate biosynthetic pathways. Curr Opin Biotechnol 2022; 75:102708. [DOI: 10.1016/j.copbio.2022.102708] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 02/19/2022] [Accepted: 02/23/2022] [Indexed: 12/21/2022]
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19
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Jiang M, Li S, Zhao C, Zhao M, Xu S, Wen G. Identification and analysis of sucrose synthase gene family associated with polysaccharide biosynthesis in Dendrobium catenatum by transcriptomic analysis. PeerJ 2022; 10:e13222. [PMID: 35402092 PMCID: PMC8992646 DOI: 10.7717/peerj.13222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 03/14/2022] [Indexed: 01/12/2023] Open
Abstract
Background Dendrobium catenatum is a valuable traditional medicinal herb with high commercial value. D. catenatum stems contain abundant polysaccharides which are one of the main bioactive components. However, although some genes related to the synthesis of the polysaccharides have been reported, more key genes need to be further elucidated. Results In this study, the contents of polysaccharides and mannose in D. catenatum stems at four developmental stages were compared, and the stems' transcriptomes were analyzed to explore the synthesis mechanism of the polysaccharides. Many genes involved in starch and sucrose metabolisms were identified by KEGG pathway analysis. Further analysis found that sucrose synthase (SUS; EC 2.4.1.13) gene maybe participated in the polysaccharide synthesis. Hence, we further investigated the genomic characteristics and evolution relationships of the SUS family in plants. The result suggested that the SUS gene of D. catenatum (DcSUS) had undergone the expansion characterized by tandem duplication which might be related to the enrichment of the polysaccharides in D. catenatum stems. Moreover, expression analyses of the DcSUS displayed significant divergent patterns in different tissues and could be divided into two main groups in the stems with four developmental stages. Conclusion In general, our results revealed that DcSUS is likely involved in the metabolic process of the stem polysaccharides, providing crucial clues for exploiting the key genes associated with the polysaccharide synthesis.
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Affiliation(s)
- Min Jiang
- Research & Development Center for Heath Product, College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Eco-Chongming (IEC), School of Life Sciences, Fudan University, Shanghai, China
| | - Shangyun Li
- Research & Development Center for Heath Product, College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Changling Zhao
- Research & Development Center for Heath Product, College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Mingfu Zhao
- Research & Development Center for Heath Product, College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Shaozhong Xu
- Research & Development Center for Heath Product, College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Guosong Wen
- Research & Development Center for Heath Product, College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
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20
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He B, Bai X, Tan Y, Xie W, Feng Y, Yang GY. Glycosyltransferases: Mining, engineering and applications in biosynthesis of glycosylated plant natural products. Synth Syst Biotechnol 2022; 7:602-620. [PMID: 35261926 PMCID: PMC8883072 DOI: 10.1016/j.synbio.2022.01.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/10/2021] [Accepted: 01/02/2022] [Indexed: 12/14/2022] Open
Abstract
UDP-Glycosyltransferases (UGTs) catalyze the transfer of nucleotide-activated sugars to specific acceptors, among which the GT1 family enzymes are well-known for their function in biosynthesis of natural product glycosides. Elucidating GT function represents necessary step in metabolic engineering of aglycone glycosylation to produce drug leads, cosmetics, nutrients and sweeteners. In this review, we systematically summarize the phylogenetic distribution and catalytic diversity of plant GTs. We also discuss recent progress in the identification of novel GT candidates for synthesis of plant natural products (PNPs) using multi-omics technology and deep learning predicted models. We also highlight recent advances in rational design and directed evolution engineering strategies for new or improved GT functions. Finally, we cover recent breakthroughs in the application of GTs for microbial biosynthesis of some representative glycosylated PNPs, including flavonoid glycosides (fisetin 3-O-glycosides, astragalin, scutellarein 7-O-glucoside), terpenoid glycosides (rebaudioside A, ginsenosides) and polyketide glycosides (salidroside, polydatin).
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Li Y, Li J, Diao M, Peng L, Huang S, Xie N. Characterization of a Group of UDP-Glycosyltransferases Involved in the Biosynthesis of Triterpenoid Saponins of Panax notoginseng. ACS Synth Biol 2022; 11:770-779. [PMID: 35107265 DOI: 10.1021/acssynbio.1c00469] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
UDP-glycosyltransferase (UGT)-mediated glycosylation is a common modification in triterpene saponins, which exhibit a wide range of bioactivities and important pharmacological effects. However, few UGTs involved in saponin biosynthesis have been identified, limiting the biosynthesis of saponins. In this study, an efficient heterologous expression system was established for evaluating the UGT-mediated glycosylation process of triterpene saponins. Six UGTs (UGTPn17, UGTPn42, UGTPn35, UGTPn87, UGTPn19, and UGTPn12) from Panax notoginseng were predicted and found to be responsible for efficient and direct enzymatic biotransformation of 21 triterpenoid saponins via 26 various glycosylation reactions. Among them, UGTPn87 exhibited promiscuous sugar-donor specificity of UDP-glucose (UDP-Glc) and UDP-xylose (UDP-Xyl) by catalyzing the elongation of the second sugar chain at the C3 or/and C20 sites of protopanaxadiol-type saponins with a UDP-Glc or UDP-Xyl donor, as well as at the C20 site of protopanaxadiol-type saponins with a UDP-Glc donor. Two new saponins, Fd-Xyl and Fe-Xyl, were generated by catalyzing the C3-O-Glc xylosylations of notoginsenoside Fd and notoginsenoside Fe when incubated with UGTPn87. Moreover, the complete biosynthetic pathways of 17 saponins were elucidated, among which notoginsenoside L, vinaginsenoside R16, gypenoside LXXV, and gypenoside XVII were revealed in Panax for the first time. A yeast cell factory was constructed with a yield of Rh2 at 354.69 mg/L and a glycosylation ratio of 60.40% in flasks. Our results reveal the biosynthetic pathway of a group of saponins in P. notoginseng and provide a theoretical basis for producing rare and valuable saponins, promoting their industrial application in medicine and functional foods.
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Affiliation(s)
- Yanting Li
- College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning 530004, China
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Biomass Engineering Technology Research Center, Guangxi Academy of Sciences, 98 Daling Road, Nanning 530007, China
| | - Jianxiu Li
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Biomass Engineering Technology Research Center, Guangxi Academy of Sciences, 98 Daling Road, Nanning 530007, China
| | - Mengxue Diao
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Biomass Engineering Technology Research Center, Guangxi Academy of Sciences, 98 Daling Road, Nanning 530007, China
| | - Longyun Peng
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Biomass Engineering Technology Research Center, Guangxi Academy of Sciences, 98 Daling Road, Nanning 530007, China
| | - Shihai Huang
- College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning 530004, China
| | - Nengzhong Xie
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Biomass Engineering Technology Research Center, Guangxi Academy of Sciences, 98 Daling Road, Nanning 530007, China
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Gao J, Xu Y, Hua C, Li C, Zhang Y. Molecular Cloning and Functional Characterization of a Sterol 3- O-Glucosyltransferase Involved in Biosynthesis of Steroidal Saponins in Trigonella foenum-graecum. FRONTIERS IN PLANT SCIENCE 2021; 12:809579. [PMID: 34966407 PMCID: PMC8710529 DOI: 10.3389/fpls.2021.809579] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 11/22/2021] [Indexed: 06/14/2023]
Abstract
Fenugreek (Trigonella foenum-graecum), a pharmacologically important herb, is widely known for its antidiabetic, hypolipidemic, and anticancer effects. The medicinal properties of this herb are accredited to the presence of bioactive steroidal saponins with one or more sugar moieties linked to the C-3 OH position of disogenin or its C25-epimer yamogenin. Despite intensive studies regarding pharmacology and phytochemical profiles of this plant, enzymes and/or genes involved in synthesizing the glycosidic part of fenugreek steroidal saponins are still missing so far. This study reports the molecular cloning and functional characterization of a key sterol-specific glucosyltransferase, designated as TfS3GT2 here, from fenugreek plant. The recombinant TfS3GT2 was purified via expression in Escherichia coli, and biochemical characterization of the recombinant enzyme suggested its role in transferring a glucose group onto the C-3 hydroxyl group of diosgenin or yamogenin. The functional role of TfS3GT2 in the steroidal saponin biosynthesis was also demonstrated by suppressing the gene in the transgenic fenugreek hairy roots via the RNA interference (RNAi) approach. Down-regulation of TfS3GT2 in fenugreek generally led to reduced levels of diosgenin or yamogenin-derived steroidal saponins. Thus, Tf3SGT2 was identified as a steroid-specific UDP-glucose 3-O-glucosyltransferase that appears to be involved in steroidal saponin biosynthesis in T. foenum-graecum.
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Xu XD, Liang WX, Yao L, Paek KY, Wang J, Gao WY. Production of ginsenoside by Chaetomium sp. and its effect on enhancing the contents of ginsenosides in Panax ginseng adventitious roots. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2021.108100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wang Q, Jin Q, Ma Y, Zhang S, Zhang L, Liu Z, Zhang Y. Iron toxicity-induced regulation of key secondary metabolic processes associated with the quality and resistance of Panax ginseng and Panax quinquefolius. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 224:112648. [PMID: 34450425 DOI: 10.1016/j.ecoenv.2021.112648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/07/2021] [Accepted: 08/11/2021] [Indexed: 05/27/2023]
Abstract
Panax ginseng and Panax quinquefolius can survive for long periods of time in iron toxicity-stressed environments, which cause rusty roots and reduced productivity. To reveal the proteomic changes in these two Panax species in response to iron toxicity stress, plants of these two species were divided into a control group and an iron toxicity-stress group. An isobaric tags for relative and absolute quantitation (iTRAQ) proteomics approach was used to explore the changes in protein accumulation and the potential mechanisms underlying the response to iron toxicity stress in the two Panax species. Proteomic analyses revealed approximately 725 differentially expressed proteins (DEPs) in the iron toxicity-stress and control groups, including 233 and 492 proteins whose expression was upregulated and downregulated, respectively. The expression of DEPs related to photosynthesis was significantly downregulated, and DEPs whose expression was significantly upregulated were associated with redox reactions. Many upregulated DEPs were also involved in pathways such as those involving phenylpropanoid, flavonoid, isoflavone and ginsenoside synthesis. The abundance of some ginsenoside monomers (Rg1 and Rb3) also significantly increased in P. ginseng and P. quinquefolius. Moreover, P. quinquefolius contained 455 DEPs whose expression was higher than that in P. ginseng, including many proteins related to the regulation of ion homeostasis, indicating that P. quinquefolius is more resistant to iron toxicity stress than P. ginseng is.
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Affiliation(s)
- Qiuxia Wang
- Institute of Special Wild Economic Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Jilin 130112, China.
| | - Qiao Jin
- Institute of Special Wild Economic Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Jilin 130112, China
| | - Yingying Ma
- Institute of Special Wild Economic Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Jilin 130112, China
| | - Shuna Zhang
- Institute of Special Wild Economic Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Jilin 130112, China
| | - Linlin Zhang
- Institute of Special Wild Economic Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Jilin 130112, China
| | - Zhengbo Liu
- Institute of Special Wild Economic Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Jilin 130112, China
| | - Yayu Zhang
- Institute of Special Wild Economic Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Jilin 130112, China; College of Pharmacy and biological Engineering, Chengdu University, Chengdu 610106, China.
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Hou M, Wang R, Zhao S, Wang Z. Ginsenosides in Panax genus and their biosynthesis. Acta Pharm Sin B 2021; 11:1813-1834. [PMID: 34386322 PMCID: PMC8343117 DOI: 10.1016/j.apsb.2020.12.017] [Citation(s) in RCA: 102] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/03/2020] [Accepted: 12/11/2020] [Indexed: 12/12/2022] Open
Abstract
Ginsenosides are a series of glycosylated triterpenoids which belong to protopanaxadiol (PPD)-, protopanaxatriol (PPT)-, ocotillol (OCT)- and oleanane (OA)-type saponins known as active compounds of Panax genus. They are accumulated in plant roots, stems, leaves, and flowers. The content and composition of ginsenosides are varied in different ginseng species, and in different parts of a certain plant. In this review, we summarized the representative saponins structures, their distributions and the contents in nearly 20 Panax species, and updated the biosynthetic pathways of ginsenosides focusing on enzymes responsible for structural diversified ginsenoside biosynthesis. We also emphasized the transcription factors in ginsenoside biosynthesis and non-coding RNAs in the growth of Panax genus plants, and highlighted the current three major biotechnological applications for ginsenosides production. This review covered advances in the past four decades, providing more clues for chemical discrimination and assessment on certain ginseng plants, new perspectives for rational evaluation and utilization of ginseng resource, and potential strategies for production of specific ginsenosides.
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Key Words
- ABA, abscisic acid
- ADP, adenosine diphosphate
- AtCPR (ATR), Arabidopsis thaliana cytochrome P450 reductase
- BARS, baruol synthase
- Biosynthetic pathway
- Biotechnological approach
- CAS, cycloartenol synthase
- CDP, cytidine diphosphate
- CPQ, cucurbitadienol synthase
- CYP, cytochrome P450
- DDS, dammarenediol synthase
- DM, dammarenediol-II
- DMAPP, dimethylallyl diphosphate
- FPP, farnesyl pyrophosphate
- FPPS (FPS), farnesyl diphosphate synthase
- GDP, guanosine diphosphate
- Ginsenoside
- HEJA, 2-hydroxyethyl jasmonate
- HMGR, HMG-CoA reductase
- IPP, isopentenyl diphosphate
- ITS, internal transcribed spacer
- JA, jasmonic acid
- JA-Ile, (+)-7-iso-jasmonoyl-l-isoleucine
- JAR, JA-amino acid synthetase
- JAZ, jasmonate ZIM-domain
- KcMS, Kandelia candel multifunctional triterpene synthases
- LAS, lanosterol synthase
- LUP, lupeol synthase
- MEP, methylerythritol phosphate
- MVA, mevalonate
- MVD, mevalonate diphosphate decarboxylase
- MeJA, methyl jasmonate
- NDP, nucleotide diphosphate
- Non-coding RNAs
- OA, oleanane or oleanic acid
- OAS, oleanolic acid synthase
- OCT, ocotillol
- OSC, oxidosqualene cyclase
- PPD, protopanaxadiol
- PPDS, PPD synthase
- PPT, protopanaxatriol
- PPTS, PPT synthase
- Panax species
- RNAi, RNA interference
- SA, salicylic acid
- SE (SQE), squalene epoxidase
- SPL, squamosa promoter-binding protein-like
- SS (SQS), squalene synthase
- SUS, sucrose synthase
- TDP, thymine diphosphate
- Transcription factors
- UDP, uridine diphosphate
- UGPase, UDP-glucose pyrophosphosphprylase
- UGT, UDP-dependent glycosyltransferase
- WGD, whole genome duplication
- α-AS, α-amyrin synthase
- β-AS, β-amyrin synthase
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Affiliation(s)
- Maoqi Hou
- The SATCM Key Laboratory for New Resources & Quality Evaluation of Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Rufeng Wang
- The SATCM Key Laboratory for New Resources & Quality Evaluation of Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Shujuan Zhao
- The SATCM Key Laboratory for New Resources & Quality Evaluation of Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhengtao Wang
- The SATCM Key Laboratory for New Resources & Quality Evaluation of Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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Zhao JN, Wang RF, Zhao SJ, Wang ZT. Advance in glycosyltransferases, the important bioparts for production of diversified ginsenosides. Chin J Nat Med 2021; 18:643-658. [PMID: 32928508 DOI: 10.1016/s1875-5364(20)60003-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Indexed: 12/14/2022]
Abstract
Ginsenosides are a series of glycosylated triterpenoids predominantly originated from Panax species with multiple pharmacological activities such as anti-aging, mediatory effect on the immune system and the nervous system. During the biosynthesis of ginsenosides, glycosyltransferases play essential roles by transferring various sugar moieties to the sapogenins in contributing to form structure and bioactivity diversified ginsenosides, which makes them important bioparts for synthetic biology-based production of these valuable ginsenosides. In this review, we summarized the functional elucidated glycosyltransferases responsible for ginsenoside biosynthesis, the advance in the protein engineering of UDP-glycosyltransferases (UGTs) and their application with the aim to provide in-depth understanding on ginsenoside-related UGTs for the production of rare ginsenosides applying synthetic biology-based microbial cell factories in the future.
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Affiliation(s)
- Jia-Ning Zhao
- The SATCM Key Laboratory for New Resources & Quality Evaluation of Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ru-Feng Wang
- The SATCM Key Laboratory for New Resources & Quality Evaluation of Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Shu-Juan Zhao
- The SATCM Key Laboratory for New Resources & Quality Evaluation of Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Zheng-Tao Wang
- The SATCM Key Laboratory for New Resources & Quality Evaluation of Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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Tang JR, Chen G, Lu YC, Tang QY, Song WL, Lin Y, Li Y, Peng SF, Yang SC, Zhang GH, Hao B. Identification of two UDP-glycosyltransferases involved in the main oleanane-type ginsenosides in Panax japonicus var. major. PLANTA 2021; 253:91. [PMID: 33818668 DOI: 10.1007/s00425-021-03617-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 03/25/2021] [Indexed: 05/28/2023]
Abstract
Two UDP-glycosyltransferases from Panax japonicus var. major were identified, and the biosynthetic pathways of three oleanane-type ginsenosides (chikusetsusaponin IVa, ginsenoside Ro, zingibroside R1) were elucidated. Chikusetsusaponin IVa and ginsenoside Ro are primary active components formed by stepwise glycosylation of oleanolic acid in five medicinal plants of the genus Panax. However, the key UDP-glycosyltransferases (UGTs) in the biosynthetic pathway of chikusetsusaponin IVa and ginsenoside Ro are still unclear. In this study, two UGTs (PjmUGT1 and PjmUGT2) from Panax japonicus var. major involved in the biosynthesis of chikusetsusaponin IVa and ginsenoside Ro were identified based on bioinformatics analysis, heterologous expression and enzyme assays. The results show that PjmUGT1 can transfer a glucose moiety to the C-28 carboxyl groups of oleanolic acid 3-O-β-D-glucuronide and zingibroside R1 to form chikusetsusaponin IVa and ginsenoside Ro, respectively. Meanwhile, PjmUGT2 can transfer a glucose moiety to oleanolic acid 3-O-β-D-glucuronide and chikusetsusaponin IVa to form zingibroside R1 and ginsenoside Ro. This work uncovered the biosynthetic mechanism of chikusetsusaponin IVa and ginsenoside Ro, providing the rational production of valuable saponins through synthetic biology strategy.
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Affiliation(s)
- Jun-Rong Tang
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Gemplasm Utilization and Innovation of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
- Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Southwest China, Southwest Forestry University, Kunming, 650224, Yunnan, People's Republic of China
| | - Geng Chen
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Gemplasm Utilization and Innovation of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Ying-Chun Lu
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Gemplasm Utilization and Innovation of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Qing-Yan Tang
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Gemplasm Utilization and Innovation of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Wan-Ling Song
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Gemplasm Utilization and Innovation of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Yuan Lin
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Gemplasm Utilization and Innovation of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Ying Li
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Gemplasm Utilization and Innovation of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Su-Fang Peng
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Gemplasm Utilization and Innovation of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Sheng-Chao Yang
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Gemplasm Utilization and Innovation of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Guang-Hui Zhang
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Gemplasm Utilization and Innovation of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China
| | - Bing Hao
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Gemplasm Utilization and Innovation of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, Yunnan, People's Republic of China.
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28
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Yao L, Wang J, He J, Huang L, Gao W. Endophytes, biotransforming microorganisms, and engineering microbial factories for triterpenoid saponins production. Crit Rev Biotechnol 2021; 41:249-272. [PMID: 33472430 DOI: 10.1080/07388551.2020.1869691] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Triterpenoid saponins are structurally diverse secondary metabolites. They are the main active ingredient of many medicinal plants and have a wide range of pharmacological effects. Traditional production of triterpenoid saponins, directly extracted from cultivated plants, cannot meet the rapidly growing demand of pharmaceutical industry. Microorganisms with triterpenoid saponins production ability (especially Agrobacterium genus) and biotransformation ability, such as fungal species in Armillaria and Aspergillus genera and bacterial species in Bacillus and Intestinal microflora, represent a valuable source of active metabolites. With the development of synthetic biology, engineering microorganisms acquired more potential in terms of triterpenoid saponins production. This review focusses on potential mechanisms and the high yield strategies of microorganisms with inherent production or biotransformation ability of triterpenoid saponins. Advances in the engineering of microorganisms, such as Saccharomyces cerevisiae, Yarrowia lipolytica, and Escherichia coli, for the biosynthesis triterpenoid saponins de novo have also been reported. Strategies to increase the yield of triterpenoid saponins in engineering microorganisms are summarized following four aspects, that is, introduction of high efficient gene, optimization of enzyme activity, enhancement of metabolic flux to target compounds, and optimization of fermentation conditions. Furthermore, the challenges and future directions for improving the yield of triterpenoid saponins biosynthesis in engineering microorganisms are discussed.
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Affiliation(s)
- Lu Yao
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
| | - Juan Wang
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
| | - Junping He
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
| | - Luqi Huang
- National Resource Center for Chinese Meteria Medica, China Academy of Chinese Medical Sciences, Beijing China
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
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29
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Yao L, Lu J, Wang J, Gao WY. Advances in biosynthesis of triterpenoid saponins in medicinal plants. Chin J Nat Med 2020; 18:417-424. [PMID: 32503733 DOI: 10.1016/s1875-5364(20)30049-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Indexed: 12/13/2022]
Abstract
In recent years, biosynthesis of triterpenoid saponins in medicinal plants has been widely studied because of their active ingredients with diverse pharmacological activities. Various oxidosqualene cyclases, cytochrome P450 monooxygenases, uridine diphosphate glucuronosyltransferases, and transcription factors related to triterpenoid saponins biosynthesis have been explored and identified. In the biosynthesis of triterpenoid saponins, the progress of gene mining by omics-based sequencing, gene screening, gene function verification, catalyzing mechanism of key enzymes and gene regulation are summarized and discussed. By the progress of the biosynthesis pathway of triterpenoid saponins, the large-scale production of some triterpenoid saponins and aglycones has been achieved through plant tissue culture, transgenic plants and engineered yeast cells. However, the complex biosynthetic pathway and structural diversity limit the biosynthesis of triterpenoid saponins in different system. Special focus can further be placed on the systematic botany information of medicinal plants obtained from omics large dataset, and triterpenoid saponins produced by synthetic biology strategies, gene mutations and gene editing technology.
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Affiliation(s)
- Lu Yao
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Jun Lu
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Juan Wang
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China.
| | - Wen-Yuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China.
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Yang Y, Wang N, Zhao S. Functional characterization of a WRKY family gene involved in somatic embryogenesis in Panax ginseng. PROTOPLASMA 2020; 257:449-458. [PMID: 31760482 DOI: 10.1007/s00709-019-01455-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 10/29/2019] [Indexed: 06/10/2023]
Abstract
As a perennial herbaceous species, Panax ginseng is widely cultivated and used as traditional herbal medicine. The root of Panax ginseng commonly remains expensive as conventional breeding of Panax ginseng is difficult. Somatic embryogenesis (S.E.) is a useful tool for plant propagation and optimal model for understanding the mechanisms of plant embryogenesis. In Panax ginseng, increasing studies have been widely performed to optimize the technology of S.E., while the underlying mechanism remains unclear. In this paper, we cloned and identified a WRKY family gene named PgWRKY6 which is upregulated in response to 2,4-D (2,4-dichlorophenoxyacetic acid)-induced embryogenic callus development. The silencing of PgWRKY6 obviously reduces the induction rate of embryogenic callus, indicating its crucial role in S.E. of Panax ginseng hairy root. The expressions of several ROS-scavenging genes are also inducible during embryogenic callus development, and the transcriptions of PgGST, PgAPX1, and PgSOD are demonstrated to be regulated by PgWRKY6. Recombinant PgWRKY6, an approximate 40-KDa protein purified from Escherichia coli, shows a specific DNA-binding activity with a potential recognition site of TTGAC(C/T). This work demonstrated that as a conserved WRKY family transcription factor, PgWRKY6 functions upstream of PgGST, PgAPX1, and PgSOD, and potentially mediated auxins -ROS signaling pathway in the process of S.E. in Panax species.
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Affiliation(s)
- Yu Yang
- Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions, Jining Medical University, No. 133 Hehua Street, Jining, China
- School of Life Sciences, Jilin University, No. 5988, Renmin Street, Nanguan District, Changchun, China
| | - Ni Wang
- Changchun Vocational Institute of Technology, No. 3278 Weixing Street, Changchun, China
| | - Shoujing Zhao
- School of Life Sciences, Jilin University, No. 5988, Renmin Street, Nanguan District, Changchun, China.
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Li L, Wang K, Zhao M, Li S, Jiang Y, Zhu L, Chen J, Wang Y, Sun C, Chen P, Lei J, Zhang M, Wang Y. Selection and validation of reference genes desirable for gene expression analysis by qRT-PCR in MeJA-treated ginseng hairy roots. PLoS One 2019; 14:e0226168. [PMID: 31805178 PMCID: PMC6894815 DOI: 10.1371/journal.pone.0226168] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 11/20/2019] [Indexed: 11/28/2022] Open
Abstract
Ginseng is a valuable herb of traditional Chinese medicine and ginsenosides, the main bioactive components of ginseng, have been proven to have multiple functions in human therapies and health. Methyl jasmonate (MeJA) is an elicitor that has been demonstrated to have a vital influence on ginsenoside biosynthesis. Quantitative real-time polymerase chain reaction (qRT-PCR) has been widely used in quantification of gene expressions. Here, we report the selection and validation of reference genes desirable for normalization of gene expressions quantified by qRT-PCR in ginseng hairy roots treated with MeJA. Twelve reference genes were selected as candidate genes, and their expressions were quantified by qRT-PCR, and analyzed by geNorm, NormFinder and BestKeeper. CYP and EF-1α were shown to be the most stable reference genes in geNorm, CYP was the most stable reference gene in NormFinder, and 18S was the most stable reference gene in BestKeeper. On this basis, we further quantified the relative expression levels of four genes encoding key enzymes that are involved in ginsenoside biosynthesis using CYP and 18S as the reference genes, respectively. Moreover, correlation analysis was performed between the quantified expressions of four genes and the ginsenoside content in MeJA-treated ginseng hairy roots. The results of relative expressions of the four genes quantified using CYP as the reference gene and their significant correlations with the ginsenoside content were better than those using 18S as the reference gene. The CYP gene, hence, was concluded as the most desirable reference gene for quantification of the expressions of genes in MeJA-treated ginseng hairy roots. This finding, therefore, provides information useful for gene research in ginseng, particularly in MeJA-treated ginseng hairy roots, which includes identification and characterization of genes involved in ginsenoside biosynthesis.
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Affiliation(s)
- Li Li
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
- Research Center of Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, China
| | - Kangyu Wang
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
- Research Center of Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, China
| | - Mingzhu Zhao
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
- Research Center of Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, China
| | - Shaokun Li
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
| | - Yue Jiang
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
- Research Center of Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, China
| | - Lei Zhu
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
- Research Center of Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, China
| | - Jing Chen
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
- Research Center of Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, China
| | - Yanfang Wang
- Research Center of Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, China
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
| | - Chunyu Sun
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
- Research Center of Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, China
| | - Ping Chen
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
- Research Center of Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, China
| | - Jun Lei
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
- Research Center of Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, China
| | - Meiping Zhang
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
- Research Center of Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, China
| | - Yi Wang
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
- Research Center of Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, China
- Key Laboratory of Natural Resources of Changbai Mountain & Functional Molecules (Yanbian University), Ministry of Education, Yanji, Jilin, China
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Liang T, Zou L, Sun S, Kuang X, Wei J, Wang L, Li Y, Sun C. Hybrid sequencing of the Gynostemma pentaphyllum transcriptome provides new insights into gypenoside biosynthesis. BMC Genomics 2019; 20:632. [PMID: 31382891 PMCID: PMC6683540 DOI: 10.1186/s12864-019-6000-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 07/26/2019] [Indexed: 01/03/2023] Open
Abstract
Background Gypenosides are a group of triterpene saponins from Gynostemma pentaphyllum that are the same as or very similar to ginsenosides from the Panax species. Several enzymes involved in ginsenoside biosynthesis have been characterized, which provide important clues for elucidating the gypenoside biosynthetic pathway. We suppose that gypenosides and ginsenosides may have a similar biosynthetic mechanism and that the corresponding enzymes in the two pathways may have considerable similarity in their sequences. To further understand gypenoside biosynthesis, we sequenced the G. pentaphyllum transcriptome with a hybrid sequencing-based strategy and then determined the candidate genes involved in this pathway using phylogenetic tree construction and gene expression analysis. Results Following the PacBio standard analysis pipeline, 66,046 polished consensus sequences were obtained, while Illumina data were assembled into 140,601 unigenes with Trinity software. Then, these output sequences from the two analytical routes were merged. After removing redundant data with CD-HIT software, a total of 140,157 final unigenes were obtained. After functional annotation, five 2,3-oxidosqualene cyclase genes, 145 cytochrome P450 genes and 254 UDP-glycosyltransferase genes were selected for the screening of genes involved in gypenoside biosynthesis. Using phylogenetic analysis, several genes were divided into the same subfamilies or closely related evolutionary branches with characterized enzymes involved in ginsenoside biosynthesis. Using real-time PCR technology, their expression patterns were investigated in different tissues and at different times after methyl jasmonate induction. Since the genes in the same biosynthetic pathway are generally coexpressed, we speculated that GpOSC1, GpCYP89, and GpUGT35 were the leading candidates for gypenoside biosynthesis. In addition, six GpWRKYs and one GpbHLH might play a possible role in regulating gypenoside biosynthesis. Conclusions We developed a hybrid sequencing strategy to obtain longer length transcriptomes with increased accuracy, which will greatly contribute to downstream gene screening and characterization, thus improving our ability to elucidate secondary metabolite biosynthetic pathways. With this strategy, we found several candidate genes that may be involved in gypenoside biosynthesis, which laid an important foundation for the elucidation of this biosynthetic pathway, thus greatly contributing to further research in metabolic regulation, synthetic biology and molecular breeding in this species. Electronic supplementary material The online version of this article (10.1186/s12864-019-6000-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tongtong Liang
- Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of, Medical Sciences, No.151, Malianwa North Road, Haidian District, Beijing, 100193, China
| | - Liqiu Zou
- Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of, Medical Sciences, No.151, Malianwa North Road, Haidian District, Beijing, 100193, China
| | - Sijie Sun
- Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of, Medical Sciences, No.151, Malianwa North Road, Haidian District, Beijing, 100193, China
| | - Xuejun Kuang
- Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of, Medical Sciences, No.151, Malianwa North Road, Haidian District, Beijing, 100193, China
| | - Jianhe Wei
- Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of, Medical Sciences, No.151, Malianwa North Road, Haidian District, Beijing, 100193, China
| | - Lizhi Wang
- Tianjin University of Traditional Chinese Medicine, No.10, Poyanghu Road, Jinghai District, Tianjin, 301617, China
| | - Ying Li
- Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of, Medical Sciences, No.151, Malianwa North Road, Haidian District, Beijing, 100193, China.
| | - Chao Sun
- Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of, Medical Sciences, No.151, Malianwa North Road, Haidian District, Beijing, 100193, China.
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Rahimi S, Kim J, Mijakovic I, Jung KH, Choi G, Kim SC, Kim YJ. Triterpenoid-biosynthetic UDP-glycosyltransferases from plants. Biotechnol Adv 2019; 37:107394. [PMID: 31078628 DOI: 10.1016/j.biotechadv.2019.04.016] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/20/2019] [Accepted: 04/30/2019] [Indexed: 01/22/2023]
Abstract
Triterpenoid saponins are naturally occurring structurally diverse glycosides of triterpenes that are widely distributed among plant species. Great interest has been expressed by pharmaceutical and agriculture industries for the glycosylation of triterpenes. Such modifications alter their taste and bio-absorbability, affect their intra-/extracellular transport and storage in plants, and induce novel biological activities in the human body. Uridine diphosphate (UDP)-glycosyltransferases (UGTs) catalyze glycosylation using UDP sugar donors. These enzymes belong to a multigene family and recognize diverse natural products, including triterpenes, as the acceptor molecules. For this review, we collected and analyzed all of the UGT sequences found in Arabidopsis thaliana as well as 31 other species of triterpene-producing plants. To identify potential UGTs with novel functions in triterpene glycosylation, we screened and classified those candidates based on similarity with UGTs from Panax ginseng, Glycine max, Medicago truncatula, Saponaria vaccaria, and Barbarea vulgaris that are known to function in glycosylate triterpenes. We highlight recent findings on UGT inducibility by methyl jasmonate, tissue-specific expression, and subcellular localization, while also describing their catalytic activity in terms of regioselectivity for potential key UGTs dedicated to triterpene glycosylation in plants. Discovering these new UGTs expands our capacity to manipulate the biological and physicochemical properties of such valuable molecules.
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Affiliation(s)
- Shadi Rahimi
- Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea; Intelligent Synthetic Biology Center, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea; Systems and Synthetic Biology, Chalmers University of Technology, Göteborg, Sweden.
| | - Jaewook Kim
- Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea; Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Ivan Mijakovic
- Systems and Synthetic Biology, Chalmers University of Technology, Göteborg, Sweden; The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Lyngby, Denmark
| | - Ki-Hong Jung
- Graduate School of Biotechnology & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Giltsu Choi
- Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea
| | - Sun-Chang Kim
- Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea; Intelligent Synthetic Biology Center, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Yu-Jin Kim
- Graduate School of Biotechnology & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea.
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Screening and evaluation of adventitious root lines of Panax notoginseng by morphology, gene expression, and metabolite profiles. Appl Microbiol Biotechnol 2019; 103:4405-4415. [DOI: 10.1007/s00253-019-09778-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 03/09/2019] [Accepted: 03/12/2019] [Indexed: 01/15/2023]
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Tang QY, Chen G, Song WL, Fan W, Wei KH, He SM, Zhang GH, Tang JR, Li Y, Lin Y, Yang SC. Transcriptome analysis of Panax zingiberensis identifies genes encoding oleanolic acid glucuronosyltransferase involved in the biosynthesis of oleanane-type ginsenosides. PLANTA 2019; 249:393-406. [PMID: 30219960 DOI: 10.1007/s00425-018-2995-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 08/28/2018] [Indexed: 05/26/2023]
Abstract
Oleanolic acid glucuronosyltransferase (OAGT) genes synthesizing the direct precursor of oleanane-type ginsenosides were discovered. The four recombinant proteins of OAGT were able to transfer glucuronic acid at C-3 of oleanolic acid that yields oleanolic acid 3-O-β-glucuronide. Ginsenosides are the primary active components in the genus Panax, and great efforts have been made to elucidate the mechanisms underlying dammarane-type ginsenoside biosynthesis. However, there is limited information on oleanane-type ginsenosides. Here, high-performance liquid chromatography analysis demonstrated that oleanane-type ginsenosides (particularly ginsenoside Ro and chikusetsusaponin IV and IVa) are the abundant ginsenosides in Panax zingiberensis, an extremely endangered Panax species in southwest China. These ginsenosides are derived from oleanolic acid 3-O-β-glucuronide, which may be formed from oleanolic acid catalyzed by an unknown oleanolic acid glucuronosyltransferase (OAGT). Transcriptomic analysis of leaves, stems, main roots, and fibrous roots of P. zingiberensis was performed, and a total of 46,098 unigenes were obtained, including all the identified homologous genes involved in ginsenoside biosynthesis. The most upstream genes were highly expressed in the leaves, and the UDP-glucosyltransferase genes were highly expressed in the roots. This finding indicated that the precursors of ginsenosides are mainly synthesized in the leaves and transported to different parts for the formation of particular ginsenosides. For the first time, enzyme activity assay characterized four genes (three from P. zingiberensis and one from P. japonicus var. major, another Panax species with oleanane-type ginsenosides) encoding OAGT, which particularly transfer glucuronic acid at C-3 of oleanolic acid to form oleanolic acid 3-O-β-glucuronide. Taken together, our study provides valuable genetic information for P. zingiberensis and the genes responsible for synthesizing the direct precursor of oleanane-type ginsenosides.
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Affiliation(s)
- Qing-Yan Tang
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, China
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, 650201, China
| | - Geng Chen
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, China
| | - Wan-Ling Song
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, China
| | - Wei Fan
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, China
| | - Kun-Hua Wei
- Guangxi Medicinal Resources Protection and Genetic Improvement Laboratory, Guangxi Botanical Garden of Medicinal Plant, Nanning, 530023, China
| | - Si-Mei He
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, China
| | - Guang-Hui Zhang
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, China
| | - Jun-Rong Tang
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, China
| | - Ying Li
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, China
| | - Yuan Lin
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, China
| | - Sheng-Chao Yang
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, 650201, China.
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Lu J, Yao L, Li JX, Liu SJ, Hu YY, Wang SH, Liang WX, Huang LQ, Dai YJ, Wang J, Gao WY. Characterization of UDP-Glycosyltransferase Involved in Biosynthesis of Ginsenosides Rg 1 and Rb 1 and Identification of Critical Conserved Amino Acid Residues for Its Function. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:9446-9455. [PMID: 30095259 DOI: 10.1021/acs.jafc.8b02544] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Ginsenosides attract great attention for their bioactivities. However, their contents are low, and many UDP-glycosyltransferases (UGTs) that play crucial roles in the ginsenoside biosynthesis pathways have not been identified, which hinders the biosynthesis of ginsenosides. In this study, we reported that one UDP-glycosyltransferase, UGTPg71A29, from Panax ginseng could glycosylate C20-OH of Rh1 and transfer a glucose moiety to Rd, producing ginsenosides Rg1 and Rb1, respectively. Ectopic expression of UGTPg71A29 in Saccharomyces cerevisiae stably generated Rg1 and Rb1 under its corresponding substrate. Overexpression of UGTPg71A29 in transgenic cells of P. ginseng could significantly enhance the accumulation of Rg1 and Rb1, with their contents of 3.2- and 3.5-fold higher than those in the control, respectively. Homology modeling, molecular dynamics, and mutational analysis revealed the key catalytic site, Gln283, which provided insights into the catalytic mechanism of UGTPg71A29. These results not only provide an efficient enzymatic tool for the synthesis of glycosides but also help achieve large-scale industrial production of glycosides.
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Affiliation(s)
| | | | | | - Shu-Jie Liu
- Key Laboratory of Industrial Fermentation Microbiology, College of Biotechnology, Ministry of Education , Tianjin University of Science and Technology , Tianjin 300457 , People's Republic of China
| | - Yan-Ying Hu
- Key Laboratory of Industrial Fermentation Microbiology, College of Biotechnology, Ministry of Education , Tianjin University of Science and Technology , Tianjin 300457 , People's Republic of China
| | - Shi-Hui Wang
- Key Laboratory of Industrial Fermentation Microbiology, College of Biotechnology, Ministry of Education , Tianjin University of Science and Technology , Tianjin 300457 , People's Republic of China
| | - Wen-Xia Liang
- Key Laboratory of Industrial Fermentation Microbiology, College of Biotechnology, Ministry of Education , Tianjin University of Science and Technology , Tianjin 300457 , People's Republic of China
| | - Lu-Qi Huang
- National Resource Center for Chinese Meteria Medica , China Academy of Chinese Medical Sciences , Beijing 100700 , People's Republic of China
| | - Yu-Jie Dai
- Key Laboratory of Industrial Fermentation Microbiology, College of Biotechnology, Ministry of Education , Tianjin University of Science and Technology , Tianjin 300457 , People's Republic of China
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Lu J, Li J, Wang S, Yao L, Liang W, Wang J, Gao W. Advances in ginsenoside biosynthesis and metabolic regulation. Biotechnol Appl Biochem 2018; 65:514-522. [DOI: 10.1002/bab.1649] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 01/24/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Jun Lu
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency; School of Pharmaceutical Science and Technology; Tianjin University; Tianjin People's Republic of China
- Key Laboratory of Systems Bioengineering; Ministry of Education; Tianjin University; Tianjin People's Republic of China
| | - Jinxin Li
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency; School of Pharmaceutical Science and Technology; Tianjin University; Tianjin People's Republic of China
- Key Laboratory of Systems Bioengineering; Ministry of Education; Tianjin University; Tianjin People's Republic of China
| | - Shihui Wang
- Key Laboratory of Industrial Fermentation Microbiology; Ministry of Education; Tianjin University of Science and Technology; Tianjin People's Republic of China
| | - Lu Yao
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency; School of Pharmaceutical Science and Technology; Tianjin University; Tianjin People's Republic of China
- Key Laboratory of Systems Bioengineering; Ministry of Education; Tianjin University; Tianjin People's Republic of China
| | - Wenxia Liang
- Key Laboratory of Industrial Fermentation Microbiology; Ministry of Education; Tianjin University of Science and Technology; Tianjin People's Republic of China
| | - Juan Wang
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency; School of Pharmaceutical Science and Technology; Tianjin University; Tianjin People's Republic of China
- Key Laboratory of Systems Bioengineering; Ministry of Education; Tianjin University; Tianjin People's Republic of China
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency; School of Pharmaceutical Science and Technology; Tianjin University; Tianjin People's Republic of China
- Key Laboratory of Systems Bioengineering; Ministry of Education; Tianjin University; Tianjin People's Republic of China
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Progress on the Studies of the Key Enzymes of Ginsenoside Biosynthesis. Molecules 2018; 23:molecules23030589. [PMID: 29509695 PMCID: PMC6017814 DOI: 10.3390/molecules23030589] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 03/01/2018] [Accepted: 03/02/2018] [Indexed: 12/31/2022] Open
Abstract
As the main bioactive constituents of Panax species, ginsenosides possess a wide range of notable medicinal effects such as anti-cancer, anti-oxidative, antiaging, anti-inflammatory, anti-apoptotic and neuroprotective activities. However, the increasing medical demand for ginsenosides cannot be met due to the limited resource of Panax species and the low contents of ginsenosides. In recent years, biotechnological approaches have been utilized to increase the production of ginsenosides by regulating the key enzymes of ginsenoside biosynthesis, while synthetic biology strategies have been adopted to produce ginsenosides by introducing these genes into yeast. This review summarizes the latest research progress on cloning and functional characterization of key genes dedicated to the production of ginsenosides, which not only lays the foundation for their application in plant engineering, but also provides the building blocks for the production of ginsenosides by synthetic biology.
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de Costa F, Barber CJS, Kim YB, Reed DW, Zhang H, Fett-Neto AG, Covello PS. Molecular cloning of an ester-forming triterpenoid: UDP-glucose 28-O-glucosyltransferase involved in saponin biosynthesis from the medicinal plant Centella asiatica. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2017; 262:9-17. [PMID: 28716424 DOI: 10.1016/j.plantsci.2017.05.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 05/12/2017] [Accepted: 05/17/2017] [Indexed: 06/07/2023]
Abstract
Triterpene saponins include bioactive compounds with structures consisting of triterpene aglycones (sapogenins) and one or more sugar moieties linked through acetal or ester glycosidic linkages at one or more sites. Centella asiatica (L.) Urban is a medicinal plant that contains bioactive ursane-type saponins, such as madecassoside and asiaticoside. In this work, glucosylation of triterpenoids in C. asiatica was investigated starting with plant extracts. An enzyme capable of glucosylating asiatic and madecassic acids was partially purified. Proteomics methods and cDNA sequence data were employed as tools to obtain a full-length cDNA clone encoding a glucosyltransferase. The recombinant gene product, UGT73AD1, was functionally expressed in Escherichia coli and purified by immobilized metal-affinity chromatography. Purified recombinant UGT73AD1 was found to have a narrow specificity, glucosylating asiatic and madecassic acids at the C28 carboxyl. mRNA accumulated in all tissues tested (leaves, stems, roots and flowers), with highest expression in leaves. Thus, UGT73AD1 was identified as a triterpenoid carboxylic acid: UDP-glucose 28-O-glucosyltransferase that appears to be involved in saponin biosynthesis in C. asiatica.
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Affiliation(s)
- Fernanda de Costa
- National Research Council of Canada, 110 Gymnasium Pl., Saskatoon, SK S7N 0W9, Canada; Plant Physiology Laboratory, Center for Biotechnology and Department of Botany, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Porto Alegre, RS 91501-970, Brazil.
| | - Carla J S Barber
- National Research Council of Canada, 110 Gymnasium Pl., Saskatoon, SK S7N 0W9, Canada.
| | - Yeon-Bok Kim
- National Research Council of Canada, 110 Gymnasium Pl., Saskatoon, SK S7N 0W9, Canada; Herbal Crop Research Division, Department of Herbal Crop Research, Bisanro 92, Eumseong, Chungbuk, 369-873, Korea.
| | - Darwin W Reed
- National Research Council of Canada, 110 Gymnasium Pl., Saskatoon, SK S7N 0W9, Canada.
| | - Haixia Zhang
- National Research Council of Canada, 110 Gymnasium Pl., Saskatoon, SK S7N 0W9, Canada.
| | - Arthur G Fett-Neto
- Plant Physiology Laboratory, Center for Biotechnology and Department of Botany, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Porto Alegre, RS 91501-970, Brazil.
| | - Patrick S Covello
- National Research Council of Canada, 110 Gymnasium Pl., Saskatoon, SK S7N 0W9, Canada.
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Xu XY, Hu JN, Liu Z, Zhang R, He YF, Hou W, Wang ZQ, Yang G, Li W. Saponins (Ginsenosides) from the Leaves of Panax quinquefolius Ameliorated Acetaminophen-Induced Hepatotoxicity in Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:3684-3692. [PMID: 28429935 DOI: 10.1021/acs.jafc.7b00610] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Acetaminophen (APAP) overdose is one of the most common inducements of drug-induced liver injury (DILI) in the world. The main purpose of this paper was to investigate the liver protection activity of saponins (ginsenosides) from the leaves of Panax quinquefolius (PQS) against APAP-induced hepatotoxicity, and the involved mechanisms were demonstrated for the first time. Mice were pretreated with PQS (150 and 300 mg/kg) by oral gavage for 7 days before being treated with 250 mg/kg APAP. Severe liver injury was exerted at 24 h post-APAP, and hepatotoxicity was assessed. Our results showed that pretreatment with PQS significantly decreased the serum alanine aminotransferase (ALT), aspartate transaminase (AST), tumor necrosis factor (TNF-α), and interleukin-1β (IL-1β) levels in a dose-dependent manner as compared to the APAP administration. Meanwhile, compared with that in the APAP group, PQS decreased hepatic malondialdehyde (MDA) contents and 4-hydroxynonenal (4-HNE) expression and restored reduced glutathione (GSH) content and superoxide dismutase (SOD) activity in livers of mice. PQS inhibited the overexpression of pro-inflammatory factors cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) in the liver tissues. Furthermore, Western blotting analysis revealed that PQS pretreatment inhibited the activation of apoptotic signaling pathways via increase of Bcl-2 and decrease of Bax and caspase-3 protein expression levels. Liver histopathological observation provided further evidence that PQS pretreatment significantly inhibited APAP-induced hepatocyte necrosis, inflammatory cell infiltration, and congestion. Biological indicators of nitrative stress such as 3-nitrotyrosine (3-NT) were inhibited after PQS pretreatment, compared to the APAP group. The present study clearly demonstrates that PQS exerts a protective effect against APAP-induced hepatic injury because of its antioxidant, anti-apoptotic, and anti-inflammatory activities. The findings from the present investigation show that PQS might be a promising candidate treatment agent against drug-induced ALI.
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Affiliation(s)
- Xing-Yue Xu
- College of Chinese Medicinal Materials, Jilin Agricultural University , Changchun 130118, China
| | - Jun-Nan Hu
- College of Chinese Medicinal Materials, Jilin Agricultural University , Changchun 130118, China
| | - Zhi Liu
- College of Chinese Medicinal Materials, Jilin Agricultural University , Changchun 130118, China
| | - Rui Zhang
- Institute of Special Wild Economic Animals and Plants, CAAS , Changchun 132109, China
| | - Yu-Fang He
- Jilin Academy of Chinese Medicine Sciences , Changchun 130012, China
| | - Wei Hou
- Institute of Special Wild Economic Animals and Plants, CAAS , Changchun 132109, China
| | - Zhi-Qing Wang
- Institute of Special Wild Economic Animals and Plants, CAAS , Changchun 132109, China
| | - Ge Yang
- College of Chinese Medicinal Materials, Jilin Agricultural University , Changchun 130118, China
| | - Wei Li
- College of Chinese Medicinal Materials, Jilin Agricultural University , Changchun 130118, China
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