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Zhan X, Qiu T, Zhang H, Hou K, Liang X, Chen C, Wang Z, Wu Q, Wang X, Li XL, Wang M, Feng S, Zeng H, Yu C, Wang H, Shen C. Mass spectrometry imaging and single-cell transcriptional profiling reveal the tissue-specific regulation of bioactive ingredient biosynthesis in Taxus leaves. PLANT COMMUNICATIONS 2023; 4:100630. [PMID: 37231648 PMCID: PMC10504593 DOI: 10.1016/j.xplc.2023.100630] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 03/31/2023] [Accepted: 05/22/2023] [Indexed: 05/27/2023]
Abstract
Taxus leaves provide the raw industrial materials for taxol, a natural antineoplastic drug widely used in the treatment of various cancers. However, the precise distribution, biosynthesis, and transcriptional regulation of taxoids and other active components in Taxus leaves remain unknown. Matrix-assisted laser desorption/ionization-mass spectrometry imaging analysis was used to visualize various secondary metabolites in leaf sections of Taxus mairei, confirming the tissue-specific accumulation of different active metabolites. Single-cell sequencing was used to produce expression profiles of 8846 cells, with a median of 2352 genes per cell. Based on a series of cluster-specific markers, cells were grouped into 15 clusters, suggesting a high degree of cell heterogeneity in T. mairei leaves. Our data were used to create the first Taxus leaf metabolic single-cell atlas and to reveal spatial and temporal expression patterns of several secondary metabolic pathways. According to the cell-type annotation, most taxol biosynthesis genes are expressed mainly in leaf mesophyll cells; phenolic acid and flavonoid biosynthesis genes are highly expressed in leaf epidermal cells (including the stomatal complex and guard cells); and terpenoid and steroid biosynthesis genes are expressed specifically in leaf mesophyll cells. A number of novel and cell-specific transcription factors involved in secondary metabolite biosynthesis were identified, including MYB17, WRKY12, WRKY31, ERF13, GT_2, and bHLH46. Our research establishes the transcriptional landscape of major cell types in T. mairei leaves at a single-cell resolution and provides valuable resources for studying the basic principles of cell-type-specific regulation of secondary metabolism.
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Affiliation(s)
- Xiaori Zhan
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, China
| | - Tian Qiu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, China
| | - Hongshan Zhang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, China; Kharkiv Institute, Hangzhou Normal University, Hangzhou 311121, China
| | - Kailin Hou
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, China
| | - Xueshuang Liang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, China
| | - Cheng Chen
- College of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
| | - Zhijing Wang
- College of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
| | - Qicong Wu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, China
| | - Xiaojia Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Xiao-Lin Li
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Mingshuang Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, China
| | - Shangguo Feng
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, China
| | - Houqing Zeng
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Kharkiv Institute, Hangzhou Normal University, Hangzhou 311121, China
| | - Chunna Yu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, China
| | - Huizhong Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, China.
| | - Chenjia Shen
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 311121, China; Kharkiv Institute, Hangzhou Normal University, Hangzhou 311121, China.
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Dang PH, Nguyen HX, Le TH, Van Do TN, Nguyen MTT, Nguyen NT. A New abeo-Icetexane-Type Diterpenoid from the Stem Barks of Taxus wallichiana. Chem Biodivers 2022; 19:e202200520. [PMID: 36380709 DOI: 10.1002/cbdv.202200520] [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: 05/26/2022] [Accepted: 11/15/2022] [Indexed: 11/17/2022]
Abstract
From a CH2 Cl2 -soluble fraction of the stem barks of Taxus wallichiana, one new abeo-icetexane-type diterpenoid, taxamairin I (1), was isolated. Its absolute configuration was elucidated based on spectroscopic interpretation and time-dependent density functional theory (TD-DFT) calculation of optical rotation. In addition, the plausible biosynthesis pathway for the formation of the new abeo-icetexane-type diterpenoid was proposed. Taxamairin I (1), at a concentration of 100 μM, did not show cytotoxicity against Hep3B human liver cancer cell lines.
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Affiliation(s)
- Phu Hoang Dang
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
- Research Lab for Drug Discovery and Development, University of Science, Ho Chi Minh City, Vietnam
| | - Hai Xuan Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
- Research Lab for Drug Discovery and Development, University of Science, Ho Chi Minh City, Vietnam
| | - Tho Huu Le
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
- Research Lab for Drug Discovery and Development, University of Science, Ho Chi Minh City, Vietnam
| | - Truong Nhat Van Do
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
- Research Lab for Drug Discovery and Development, University of Science, Ho Chi Minh City, Vietnam
| | - Mai Thanh Thi Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
- Research Lab for Drug Discovery and Development, University of Science, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, University of Science, Ho Chi Minh City, Vietnam
| | - Nhan Trung Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
- Research Lab for Drug Discovery and Development, University of Science, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, University of Science, Ho Chi Minh City, Vietnam
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Li LP, Han JQ, Yang F, Wu X, Xie JH, Zhou QL. Total Synthesis of the Alleged Structure of (+)-Fimbricalyxoid A. Org Lett 2022; 24:3477-3481. [PMID: 35522037 DOI: 10.1021/acs.orglett.2c01076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An enantioselective total synthesis of the alleged structure of (+)-fimbricalyxoid A is reported. The synthetic strategy features a pyridine-N-oxidate-mediated SN2' reaction to introduce an oxygen functionality at position C3 of the A-ring and a sequential three-step process via the cleavage of the C-O bonds and hemiketalization to form the 3,20-oxybridge. With this strategy, the target molecule was synthesized in 19% overall yield and 12 steps from our previously synthesized cis-fused octahydrophenanthrene (+)-6.
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Affiliation(s)
- Lin-Ping Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jia-Qi Han
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Fan Yang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiong Wu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jian-Hua Xie
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China.,Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300070, China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China.,Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300070, China
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Murata T, Ishikawa Y, Saruul E, Selenge E, Sasaki K, Umehara K, Yoshizaki F, Batkhuu J. Abietane-type diterpenoids from the roots of Caryopteris mongolica and their cholinesterase inhibitory activities. PHYTOCHEMISTRY 2016; 130:152-158. [PMID: 27298275 DOI: 10.1016/j.phytochem.2016.05.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 05/20/2016] [Accepted: 05/26/2016] [Indexed: 06/06/2023]
Abstract
Eleven abietane-type diterpenoids and two known abietanes were isolated from the roots of Caryopteris mongolica, and their structures were characterized. The absolute configurations at C-5 and C-10 were determined from the NMR data, including from the nuclear Overhauser effect and CD spectra, and the absolute configuration of C-16 in the hydroxypropyl group was determined via a modified Mosher's method. Furthermore, the previously unknown absolute configuration of the C-15 of cyrtophyllone B was determined to be in an R-configuration using X-ray crystallography. To estimate the preventive effects of the isolates for neurodegenerative disease development, their inhibitory activities against acetylcholinesterase (AChE) from human erythrocytes and butyrylcholinesterase (BChE) from horse serum were evaluated.
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Affiliation(s)
- Toshihiro Murata
- Department of Pharmacognosy, Tohoku Medical and Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai, 981-8558, Japan.
| | - Yoshinobu Ishikawa
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Erdenebileg Saruul
- School of Engineering and Applied Sciences, National University of Mongolia, POB-617, Ulaanbaatar-46A, 14201, Mongolia
| | - Erdenechimeg Selenge
- Department of Pharmacognosy, Tohoku Medical and Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai, 981-8558, Japan; Mongolian University of Pharmaceutical Sciences, Sonsgolon's Road, Street 4/A, 20th Khoroo, Songinokhairkhan District, Ulaanbaatar, Mongolia
| | - Kenroh Sasaki
- Department of Pharmacognosy, Tohoku Medical and Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai, 981-8558, Japan
| | - Kaoru Umehara
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Fumihiko Yoshizaki
- Department of Pharmacognosy, Tohoku Medical and Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai, 981-8558, Japan
| | - Javzan Batkhuu
- School of Engineering and Applied Sciences, National University of Mongolia, POB-617, Ulaanbaatar-46A, 14201, Mongolia
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6
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Affiliation(s)
- Qing-Wen Shi
- Department of Natural Product Chemistry, School of Pharmaceutical Sciences, Hebei Medicinal University, 336 Zhongshan East Road, 050017, Shijiazhuang, Hebei Province, PR China
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