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Qian X, Qin Y, Sarasiya S, Chen J. Transcriptomic profiling of adding cobalt chloride to improve dendrobine-type total alkaloid production. Appl Microbiol Biotechnol 2024; 108:26. [PMID: 38170314 DOI: 10.1007/s00253-023-12869-7] [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: 06/08/2023] [Revised: 11/09/2023] [Accepted: 11/19/2023] [Indexed: 01/05/2024]
Abstract
Trichoderma longibrachiatum UN32 is known for its efficient production of dendrobine-type total alkaloids (DTTAs). This study aimed to determine the optimal medium composition for the UN32 strain using response surface methodology. Key factors, including glucose, beef extract, and CoCl2, were selected through the Plackett-Burman design. Subsequently, a factorial optimization approach was employed using the steepest ascent design, and 17 trial sets were completed via the Box-Behnken design. The optimal medium composition was found to consist of 29.4 g/L of glucose, 17.3 g/L of beef extract, and 0.28 mmol/L of CoCl2. This optimized medium resulted in an impressive 80.8% increase in mycelial dry weight (reaching 12.303 g/L) and a substantial 76.4% boost in DTTA production (reaching 541.63 ± 46.95 μg). Furthermore, the fermentation process was scaled up to a 5-L bioreactor, leading to a DTTA production approximately 1.95 times than the control. Transcriptome analysis of strain UN32 in response to CoCl2 supplementation revealed significant changes in the expression of critical genes associated with the TCA cycle and L-valine, L-leucine, and L-isoleucine biosynthesis changed. These alterations resulted in a heightened influx of acetyl-CoA into DTTA production. Additionally, the expression of genes related to antioxidant enzymes was modified to maintain homeostasis of reactive oxygen species (ROS). A potential mechanism for the accumulation of DTTAs based on ROS as a signal transduction was proposed. These findings provide valuable insights into the regulatory mechanisms of DTTA biosynthesis, potentially offering a method to enhance the production of secondary metabolites in the UN32 strain. KEY POINTS: • After the RSM optimization, there is a substantial increase of 80.8% in biomass production and a significant 76.4% rise in DTTA production. • Transcriptome analysis revealed that the inclusion of CoCl2 supplements resulted in an enhanced influx of acetyl-CoA. • Proposed a mechanism for the accumulation of DTTAs for the role of ROS as a signal transduction pathway.
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Affiliation(s)
- Xu Qian
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, Jiangsu, China
| | - Yitong Qin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, Jiangsu, China
| | - Surendra Sarasiya
- Bioresource Institute of Healthy Utilization, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Jishuang Chen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, Jiangsu, China.
- Bioresource Institute of Healthy Utilization, Zunyi Medical University, Zunyi, 563000, Guizhou, China.
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Jiao ZW, Liu HF, Lin KQ, Xie GT, Lou HY, Pan WD, Zhang MS. Synthesis and in vitro Anti-Inflammatory Activity of Novel Dendrobine Amide/Sulfonamide Derivatives. Chem Biodivers 2024; 21:e202400030. [PMID: 38511964 DOI: 10.1002/cbdv.202400030] [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: 01/06/2024] [Revised: 03/14/2024] [Accepted: 03/21/2024] [Indexed: 03/22/2024]
Abstract
A traditional Chinese medicine ingredient, dendrobine, has been demonstrated to have anti-inflammatory properties. However, due to its poor anti-inflammatory properties, its clinical use is limited. Consequently, we have designed and synthesized 32 new amide/sulfonamide dendrobine derivatives and screened their anti-inflammatory activities in vitro. Experiments showed that nitric oxide (NO) generation in lipopolysaccharide (LPS)-induced RAW264.7 cells was strongly reduced by derivative 14, with an IC50 of 2.96 μM. Western blot research revealed that 14 decreased the concentration-dependent expression of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (INOS). Molecular docking was used to predict the binding of the inflammation-associated proteins COX-2 and INOS to compound 14.
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Affiliation(s)
- Zi-Wei Jiao
- School of Pharmacy, Zunyi Medical University, Zunyi, 563000, PR China
| | - Han-Fei Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, PR China
- Natural Products Research Center of Guizhou Province, Guiyang, 550014, PR China
| | - Kai-Qin Lin
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, PR China
- Natural Products Research Center of Guizhou Province, Guiyang, 550014, PR China
| | - Guang-Tong Xie
- Natural Products Research Center of Guizhou Province, Guiyang, 550014, PR China
| | - Hua-Yong Lou
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, PR China
- Natural Products Research Center of Guizhou Province, Guiyang, 550014, PR China
| | - Wei-Dong Pan
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, PR China
| | - Mao-Sheng Zhang
- School of Pharmacy, Zunyi Medical University, Zunyi, 563000, PR China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, PR China
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Yang Z, Luo W, Yang Z, Zhang M, Dong M, Guo D, Gu J, Sun C, Xiao S. Diterpenoids from Torreya grandis and their cytotoxic activities. PHYTOCHEMISTRY 2024; 221:114036. [PMID: 38387724 DOI: 10.1016/j.phytochem.2024.114036] [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: 11/12/2023] [Revised: 02/18/2024] [Accepted: 02/19/2024] [Indexed: 02/24/2024]
Abstract
Eight previously undescribed diterpenoids, along with eleven previously reported analogues, were obtained from the supercritical CO2 extracts of Torreya grandis aril. The structures of these compounds were elucidated based on HRESIMS, NMR, ECD, and single-crystal X-ray diffraction data. In the MTT assay, compound 18 exhibited significant inhibitory effects on two human colon cancer cell lines, HT-29 and HCT 116 cells, with IC50 values of 7.37 μM and 6.55 μM, respectively. It was found that compound 18 induced apoptosis and significantly inhibited the migration of HCT 116 colon cancer cells in a concentration-dependent manner.
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Affiliation(s)
- Zongyu Yang
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China; SiChuan Vocational College of Health and Rehabilitation, Zigong, Sichuan, 643000, China
| | - Wanli Luo
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China
| | - Zaiwen Yang
- Guizhou Huiteng Extraction Technology Application Research Institute Co., Ltd. Zunyi, Guizhou, 563000, China
| | - Maosheng Zhang
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China; Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, 563000, China
| | - Minjian Dong
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China; Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, 563000, China
| | - Dale Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of, Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China
| | - Juan Gu
- Department of Pharmacy, Affiliated Hospital of Zunyi Medical University, Guizhou, 563003, China
| | - Chengxin Sun
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China; Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, 563000, China.
| | - Shiji Xiao
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China; Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, 563000, China.
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Li K, Wu F, Chen M, Xiao Z, Xu Y, Xu M, Liu J, Xu D. Identification, Biological Function Profiling and Biosynthesis of Secondary Metabolites in Medicinal Orchids. Metabolites 2023; 13:829. [PMID: 37512536 PMCID: PMC10385179 DOI: 10.3390/metabo13070829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/02/2023] [Accepted: 07/04/2023] [Indexed: 07/30/2023] Open
Abstract
The secondary metabolites present in medicinal orchids are diverse and possess a vast array of biological activities. They represent valuable raw materials for modern pharmaceuticals and clinical medicine and have tremendous potential for future development. A systematic collation of secondary metabolites' composition and a summary of the biological activities of medicinal orchids represent a crucial step in unlocking the potential of these valuable resources in drug development. Furthermore, such information can provide essential guidance for comprehensively analyzing the pharmacological and therapeutic mechanisms of these valuable herbs in traditional Chinese herbal medicine. This review article presents an overview of the types and main biological functions of the secondary metabolites found in medicinal orchids, as well as the conventional synthesis methods for these compounds. Our aim is to provide a useful reference for future research and the drug development of secondary metabolic products of medicinal orchids.
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Affiliation(s)
- Kunqian Li
- Department of Medical Instrumental Analysis, Zunyi Medical University, Zunyi 563099, China
- Department of Cell Biology, Zunyi Medical University, Zunyi 563099, China
| | - Fengju Wu
- Department of Medical Instrumental Analysis, Zunyi Medical University, Zunyi 563099, China
| | - Mengzhu Chen
- Department of Cell Biology, Zunyi Medical University, Zunyi 563099, China
| | - Zhihao Xiao
- Department of Cell Biology, Zunyi Medical University, Zunyi 563099, China
| | - Ya Xu
- Department of Cell Biology, Zunyi Medical University, Zunyi 563099, China
| | - Mengwei Xu
- Department of Medical Instrumental Analysis, Zunyi Medical University, Zunyi 563099, China
| | - Jingyi Liu
- Department of Cell Biology, Zunyi Medical University, Zunyi 563099, China
| | - Delin Xu
- Department of Medical Instrumental Analysis, Zunyi Medical University, Zunyi 563099, China
- Department of Cell Biology, Zunyi Medical University, Zunyi 563099, China
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Liu XQ, Qin CF, Chen ND, Hao JW, Ma ST, Zhang M, Song Y, Min YJ, Bu YQ, Li S. Simultaneous determination of phenols in the four main original plants of the famous traditional Chinese medicine Shihu by pressurized capillary electrochromatography. RSC Adv 2023; 13:19455-19463. [PMID: 37383692 PMCID: PMC10294287 DOI: 10.1039/d3ra00761h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 06/09/2023] [Indexed: 06/30/2023] Open
Abstract
A rapid pressurized capillary electrochromatography (pCEC) method has been established for the simultaneous analysis of 11 phenols in the four main original plants of the famous traditional Chinese medicine (TCM) Shihu. The effects of wavelength, mobile phase, flow rate, pH value, concentration of buffer, and applied voltage were systematically studied. The investigated 11 phenols could be isolated in 35 min on a reversed-phase EP-100-20/45-3-C18 capillary column using the established method. To apply the established pCEC method, all phenols except tristin (11) were detected in the four Dendrobium plants. A total of 10 components were detected in D. huoshanense, 6 components in D. nobile, 3 components in D. chrysotoxum, and 4 components in D. fimbriatum. The consistent evaluation revealed that the similarities among the four original plants of Shihu were 38.2-86.0% based on the 11 polyphenols and 92.5-97.7% based on the pCEC fingerprints. These further suggested that the components of the four original plants of TCM Shihu might be significantly different. Further investigation should be conducted to confirm and evaluate if the four species could be used as the same medicine with the same amount according to Chinese Pharmacopoeia (ChP).
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Affiliation(s)
- Xiao-Quan Liu
- College of Biotechnology and Pharmaceutical Engineering, West Anhui University Lu'an City 237012 Anhui Province P. R. China
- College of Pharmacy, Anhui University of Chinese Medicine No.1 Qianjian Road Hefei City 230012 Anhui Province P. R. China
| | - Chao-Feng Qin
- College of Biotechnology and Pharmaceutical Engineering, West Anhui University Lu'an City 237012 Anhui Province P. R. China
- College of Pharmacy, Anhui University of Chinese Medicine No.1 Qianjian Road Hefei City 230012 Anhui Province P. R. China
| | - Nai-Dong Chen
- College of Biotechnology and Pharmaceutical Engineering, West Anhui University Lu'an City 237012 Anhui Province P. R. China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resource Lu'an City 237012 Anhui Province P. R. China
- College of Pharmacy, Anhui University of Chinese Medicine No.1 Qianjian Road Hefei City 230012 Anhui Province P. R. China
| | - Jing-Wen Hao
- College of Biotechnology and Pharmaceutical Engineering, West Anhui University Lu'an City 237012 Anhui Province P. R. China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resource Lu'an City 237012 Anhui Province P. R. China
| | - Shi-Tang Ma
- College of Biotechnology and Pharmaceutical Engineering, West Anhui University Lu'an City 237012 Anhui Province P. R. China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resource Lu'an City 237012 Anhui Province P. R. China
| | - Min Zhang
- College of Biotechnology and Pharmaceutical Engineering, West Anhui University Lu'an City 237012 Anhui Province P. R. China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resource Lu'an City 237012 Anhui Province P. R. China
| | - Yu Song
- College of Pharmacy, Xinxiang Medical University Xinxiang City 453003 Henan Province P. R. China
| | - Yun-Jiang Min
- College of Biotechnology and Pharmaceutical Engineering, West Anhui University Lu'an City 237012 Anhui Province P. R. China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resource Lu'an City 237012 Anhui Province P. R. China
| | - Ya-Qin Bu
- College of Biotechnology and Pharmaceutical Engineering, West Anhui University Lu'an City 237012 Anhui Province P. R. China
- College of Pharmacy, Anhui University of Chinese Medicine No.1 Qianjian Road Hefei City 230012 Anhui Province P. R. China
| | - Sheng Li
- College of Biotechnology and Pharmaceutical Engineering, West Anhui University Lu'an City 237012 Anhui Province P. R. China
- College of Pharmacy, Anhui University of Chinese Medicine No.1 Qianjian Road Hefei City 230012 Anhui Province P. R. China
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Huang L, Meng YF, Wang G, Yang JW, Zhang MS, Dong MJ, Sun CX, Xiao SJ. Complete 1 H and 13 C assignments of two new sesquiterpenoids from Dendrobium aduncum. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2023; 61:386-391. [PMID: 36929032 DOI: 10.1002/mrc.5345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 05/11/2023]
Abstract
Two new sesquiterpenoids, dendroaduoid A (1) and dendroaduol (2), together with four known sesquiterpenoids were isolated from the stems of Dendrobium aduncum. Their structures were identified by HR-ESI-MS and NMR experiments, and the complete assignments of 1 H and 13 C NMR data for two new sesquiterpenoids were obtained by the aid of HSQC, HMBC, 1 H-1 H COSY, NOESY, and ECD techniques. The cytotoxic effects of the isolated compounds on four tumor cell lines (HCT-116, HepG2, A549, and SW1990) were evaluated using MTT assay. Otherwise, the inhibitory activity of these six sesquiterpenoids on glycosidase was also evaluated.
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Affiliation(s)
- Lang Huang
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China
| | - Yu-Fan Meng
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China
| | - Gang Wang
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China
| | - Jian-Wen Yang
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China
| | - Mao-Sheng Zhang
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China
| | - Min-Jian Dong
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 563000, China
| | - Cheng-Xin Sun
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 563000, China
| | - Shi-Ji Xiao
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 563000, China
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Meng Y, Zhang M, Fang Y, Yang J, Dong M, Sun C, Xiao S. Secondary Metabolites from Dendrobium nobile and Their Activities Induce Metabolites Apoptosis in OSC-19 Cells. Molecules 2023; 28:molecules28083423. [PMID: 37110660 PMCID: PMC10145760 DOI: 10.3390/molecules28083423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/09/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
To identify potential drug candidates, secondary metabolites of Dendrobium nobile were performed. As a result, two previously undescribed phenanthrene derivatives with a spirolactone ring (1 and 2), along with four known compounds, N-trans-cinnamoyltyramine (3), N-trans-p-coumaroyltyramine (4), N-trans-feruloyltyramine (5), and moscatilin (6), were isolated from Dendrobium nobile. The structures of the undescribed compounds were elucidated using NMR spectroscopy, electronic circular dichroism (ECD) calculations, and extensive spectroscopic data analysis. The cytotoxic effects of compounds on human tongue squamous cells OSC-19 were determined using MTT at concentrations of 2.5 μM, 5 μM, 10 μM, and 20 μM. Compound 6 exhibited potent inhibitory activity against OSC-19 cells with an IC50 of 1.32 μM. Migration assays and western blot assays demonstrated that compound 6 effectively inhibited migration by down-regulating MMP2 and MMP9 at concentrations of 0.5 μM and 1 μM. To investigate its effect on apoptosis, we performed AO/PI staining, flow cytometry, and WB experiments. The results showed that increasing concentrations led to increased red fluorescence, decreased green fluorescence, increased apoptosis rate, decreased expression of bcl-2, caspase 3, caspase 9, and parp proteins, and increased bax expression. Furthermore, the phosphorylation of JNK and P38 was activated, suggesting that compound 6 may induce apoptosis via the MAPK pathway.
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Affiliation(s)
- Yufan Meng
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Maosheng Zhang
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Yike Fang
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Jianwen Yang
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Minjian Dong
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, China
| | - Chengxin Sun
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, China
| | - Shiji Xiao
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, China
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Zhang CC, Kong YL, Zhang MS, Wu Q, Shi JS. Two new alkaloids from Dendrobium nobile Lindl. exhibited neuroprotective activity, and dendrobine alleviated Aβ 1-42 -induced apoptosis by inhibiting CDK5 activation in PC12 cells. Drug Dev Res 2023; 84:262-274. [PMID: 36658700 DOI: 10.1002/ddr.22030] [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: 08/10/2022] [Revised: 11/16/2022] [Accepted: 12/12/2022] [Indexed: 01/21/2023]
Abstract
Dendrobium nobile Lindl. is registered in the Chinese Pharmacopoeia as a traditional medicine. Phytochemical investigation of the ethanol extract of D. nobile Lindl. stems yielded three alkaloid compounds, including two new compounds dendroxine B (2) and denrine B (3) as well as one known compound dendrobine (1). Here, we identified the structure of these compounds using spectroscopic analyses and compared them with those described in previous studies. Compounds 1-3 were found to show protective effect against amyloid-β 1-42 (Aβ1-42 )-induced neurotoxicity in rat pheochromocytoma (PC12) cells, among which dendrobine exhibited the most significant neuroprotective effect. Hoechst 33342/propidium iodide staining indicated that dendrobine ameliorated Aβ1-42 -induced apoptosis. Moreover, quantitative real-time polymerase chain reaction and western blot analysis analysis demonstrated that dendrobine suppressed the activation of cyclin-dependent kinase 5 (CDK5), upregulated Bcl-2 expression, and downregulated Bax, cyto-c, and caspase-3 expression. Molecular docking analysis and surface plasmon resonance assay suggested that dendrobine directly bound to CDK5 protein with a KD value of 2.05 × 10-4 M. In summary, alkaloids are the neuroprotective constituents of D. nobile Lindl., and dendrobine protected PC12 cells against Aβ1-42 -induced apoptosis by inhibiting CDK5 activation.
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Affiliation(s)
- Cheng-Chen Zhang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi, China.,State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medcial University, Guiyang, China
| | - Yan-Li Kong
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Mao-Sheng Zhang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Qin Wu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Jing-Shan Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi, China
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Shi QQ, Tang JJ, Gao JM. Picrotoxane sesquiterpenoids: chemistry, chemo- and bio-syntheses and biological activities. Nat Prod Rep 2022; 39:2096-2131. [PMID: 36106498 DOI: 10.1039/d2np00049k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covering: up to December 2021Picrotoxane sesquiterpenoids are a special category of natural products known to have a picrotoxane skeleton and are characterised by a highly oxidised cis-hydrindene core, lactone rings, and epoxide functionalities. Ever since the first picrotoxane was isolated from Menispermum cocculus in the early 19th century, these compounds have long attracted the attention of natural product chemists, synthetic chemists, and pharmacologists for their particular structures and powerful biological activities. This review extensively summarizes a total of 132 naturally occurring picrotoxane sesquiterpenoids, taking into account their distributions, structural classifications, chemical and bio-synthetic researches, and bioactivities. It provides a comprehensive and in-depth perspective for further investigation on picrotoxane sesquiterpenoids.
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Affiliation(s)
- Qiang-Qiang Shi
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, People's Republic of China.
| | - Jiang-Jiang Tang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, People's Republic of China.
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, People's Republic of China.
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