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Roy CP, Karmakar S, Dash J. Synthesis of Phenanthrenes and 1-Hydroxyphenanthrenes via Aromatization-Assisted Ring-Closing Metathesis: toward Polynuclear Aromatic Hydrocarbons. J Org Chem 2024; 89:10511-10523. [PMID: 39007427 DOI: 10.1021/acs.joc.4c00723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
This study presents an efficient synthetic strategy for phenanthrenes and 1-hydroxyphenanthrenes through aromatization-assisted ring-closing metathesis (RCM). It involves vinylation of 1-bromo-2-naphthaldehyde derivatives, Barbier allylation, and subsequent one-pot RCM/dehydration of the diene precursors to yield phenanthrene derivatives. Further, the corresponding keto analogues of diene precursors produce 1-hydroxyphenanthrenes through RCM and aromatization-driven keto-enol tautomerism. This pathway enables rapid access to a diverse array of functionalized phenanthrenes and 1-hydroxyphenanthrenes, including synthetically challenging derivatives containing both -OH and -OMe groups via the sequential construction of the terminal phenanthrene ring.
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Affiliation(s)
- Charles Patriot Roy
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Shilpi Karmakar
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Jyotirmayee Dash
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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2
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Tong W, Yu D, Zhu X, Le Z, Chen H, Hu F, Wu S. The Whole Mitochondrial Genome Sequence of Dendrobium loddigesii Rolfe, an Endangered Orchid Species in China, Reveals a Complex Multi-Chromosome Structure. Genes (Basel) 2024; 15:834. [PMID: 39062613 PMCID: PMC11275824 DOI: 10.3390/genes15070834] [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: 05/28/2024] [Revised: 06/18/2024] [Accepted: 06/19/2024] [Indexed: 07/28/2024] Open
Abstract
Dendrobium loddigesii is a precious traditional Chinese medicine with high medicinal and ornamental value. However, the characterization of its mitochondrial genome is still pending. Here, we assembled the complete mitochondrial genome of D. loddigesii and discovered that its genome possessed a complex multi-chromosome structure. The mitogenome of D. loddigesii consisted of 17 circular subgenomes, ranging in size from 16,323 bp to 56,781 bp. The total length of the mitogenome was 513,356 bp, with a GC content of 43.41%. The mitogenome contained 70 genes, comprising 36 protein-coding genes (PCGs), 31 tRNA genes, and 3 rRNA genes. Furthermore, we detected 403 repeat sequences as well as identified 482 RNA-editing sites and 8154 codons across all PCGs. Following the sequence similarity analysis, 27 fragments exhibiting homology to both the mitogenome and chloroplast genome were discovered, accounting for 9.86% mitogenome of D. loddigesii. Synteny analysis revealed numerous sequence rearrangements in D. loddigesii and the mitogenomes of related species. Phylogenetic analysis strongly supported that D. loddigesii and D. Amplum formed a single clade with 100% bootstrap support. The outcomes will significantly augment the orchid mitochondrial genome database, offering profound insights into Dendrobium's intricate mitochondrial genome architecture.
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Affiliation(s)
| | | | | | | | | | | | - Shengmin Wu
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China; (W.T.); (D.Y.); (X.Z.); (Z.L.); (H.C.); (F.H.)
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3
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Zhu HQ, Feng S, Xie RK, Zhu ZT, Lou YH, Zhou XM, Song XM. New Indole Alkaloids from the Fungus Talaromyces assiutensis JTY2. Chem Biodivers 2024:e202400937. [PMID: 38682724 DOI: 10.1002/cbdv.202400937] [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: 04/16/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/01/2024]
Abstract
Three new indole alkaloids, named talatensindoids A-C (1-3), together with two known biogenetically related indole alkaloids tryptamine (4) and L-tryptophan (5) were isolated from the Talaromyces assiutensis JTY2 based on the guidance of OSMAC approach. The structures of these indole alkaloids were determined by comprehensive spectroscopic analyses. The absolute configuration of 3 was confirmed by X-ray crystallographic analysis. Compound 1 represent the rare example of a chlorine-substituted indole alkaloid from natural products. The inhibitory activity of compounds 1-5 against two phytopathogenic fungi and three phytopathogenic bacteria was evaluated. Compound 1 exhibited broad spectrum antibacterial activities.
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Affiliation(s)
- Hong-Quan Zhu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan, Normal University, Haikou, Hainan, 571158, China Tel
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, China
| | - Shuo Feng
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan, Normal University, Haikou, Hainan, 571158, China Tel
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, China
| | - Rong-Kun Xie
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan, Normal University, Haikou, Hainan, 571158, China Tel
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, China
| | - Zheng-Tian Zhu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan, Normal University, Haikou, Hainan, 571158, China Tel
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, China
| | - Yong-Hao Lou
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan, Normal University, Haikou, Hainan, 571158, China Tel
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, China
| | - Xue-Ming Zhou
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan, Normal University, Haikou, Hainan, 571158, China Tel
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, China
| | - Xin-Ming Song
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan, Normal University, Haikou, Hainan, 571158, China Tel
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, China
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Li KL, Liang YM, Chen Z, Zheng PJ, Zhang GQ, Yan B, Elshikh MS, Rizwana H, Chen B, Xu Q. Genome-wide identification of the alkaloid synthesis gene family CYP450, gives new insights into alkaloid resource utilization in medicinal Dendrobium. Int J Biol Macromol 2024; 259:129229. [PMID: 38211913 DOI: 10.1016/j.ijbiomac.2024.129229] [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: 09/12/2023] [Revised: 12/22/2023] [Accepted: 01/02/2024] [Indexed: 01/13/2024]
Abstract
The medicinal Dendrobium species of Orchidaceae possess significant pharmaceutical value, and modern pharmacological research has shown that Dendrobium contains many important active ingredients. Alkaloids, the crucial components of medicinal Dendrobium, demonstrate beneficial healing properties in cardiovascular, cataract, gastrointestinal, and respiratory diseases. Members of the cytochrome P450 monooxygenase (CYP) gene family play essential roles in alkaloid synthesis, participating in alkaloid terpene skeleton construction and subsequent modifications. Although studies of the CYP family have been conducted in some species, genome-wide characterization and systematic analysis of the CYP family in medicinal Dendrobium remain underexplored. In this study, we identified CYP gene family members in the genomes of four medicinal Dendrobium species recorded in the Pharmacopoeia: D. nobile, D. chrysotoxum, D. catenatum, and D. huoshanense. Further, we analyzed the motif composition, gene replication events, and selection pressure of this family. Syntenic analysis revealed that members of the clan 710 were present on chromosome 18 in three medicinal Dendrobium species, except for D. nobile, indicating a loss of clan 710 occurring in D. nobile. We also conducted an initial screening of the CYP genes involved in alkaloid synthesis through transcriptome sequencing. Quantitative real-time reverse transcription PCR showed that the expression of DnoNew43 and DnoNew50, homologs of secologanin synthase involved in the alkaloid synthesis pathway, was significantly higher in the stems than in the leaves. This result coincided with the distribution of dendrobine content in Dendrobium stems and leaves, indicating that these two genes might be involved in the dendrobine synthesis pathway. Our results give insights into the CYP gene family evolution analysis in four medicinal Dendrobium species for the first time and identify two related genes that may be involved in alkaloid synthesis, providing a valuable resource for further investigations into alkaloid synthesis pathway in Dendrobium and other medicinal plants.
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Affiliation(s)
- Kang-Li Li
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Medical University, Guangzhou 511436, China
| | - Yu-Min Liang
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Medical University, Guangzhou 511436, China
| | - Zhi Chen
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Medical University, Guangzhou 511436, China
| | - Pei-Ji Zheng
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Medical University, Guangzhou 511436, China
| | - Guo-Qiang Zhang
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Binghua Yan
- College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Mohamed Soliman Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Humaira Rizwana
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - BingJie Chen
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Medical University, Guangzhou 511436, China.
| | - Qing Xu
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Medical University, Guangzhou 511436, China.
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Raji Reddy C, Fatima S, Kolgave DH, Sridhar B. Radical-mediated sulfonylative/thiolative cyclization of biaryl enones to phenanthrone derivatives. Org Biomol Chem 2023; 21:7327-7338. [PMID: 37646289 DOI: 10.1039/d3ob01068f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
An approach for the assembly of phenanthrone derivatives bearing all carbon quaternary centres has been developed through visible light-promoted tandem sulfonylation/intramolecular-arylation of biaryl enones with sulfonyl chlorides. A series of sulfonylated 10,10-dialkylphenanthrones were obtained in good yields. In addition, the approach has been extended to thiotrifluoromethyl (SCF3) and thiocyanato (SCN) radicals to obtain the corresponding phenanthrones under oxidative conditions. The synthetic utility was also illustrated by the scalability and further transformations of the product.
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Affiliation(s)
- Chada Raji Reddy
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Sana Fatima
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Dattahari H Kolgave
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Balasubramanian Sridhar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
- Centre for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
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6
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Li PY, Li L, Wang YZ. Traditional uses, chemical compositions and pharmacological activities of Dendrobium: A review. JOURNAL OF ETHNOPHARMACOLOGY 2023; 310:116382. [PMID: 36948262 DOI: 10.1016/j.jep.2023.116382] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/23/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dendrobium is a kind of medicine food homology plant. Dendrobium has long been used to strengthen "Yin" and tonify five viscera. AIM OF THIS REVIEW This paper presents a systematic review of the folk usage, chemical composition and pharmacological activity of Dendrobium, aiming to provide a reference for subsequent in-depth understanding and better exploitation of health food, medicine, and natural products. MATERIALS AND METHODS Available information about the genus Dendrobium was collected via Web of Science, PubMed, Science Direct, Scopus, APA-Psy Articles, Google Scholar, Connected Papers, Springer Search, and KNCI. The keywords for this article are Dendrobium, traditional use, chemical diversity and pharmacological activity. Use the "Dictionary of Chinese Ethnic Medicine" to provide 23 kinds of Dendrobium with medicinal value, the Latin name of Dendrobium is verified by the Flora of China (www.iplant.cn), and its species distribution and related information are collected. RESULTS There are 78 species of Dendrobium in China, 14 of which are endemic to China. At present, 450 compounds including sesquiterpenoids, lignans compounds, phenolic compounds, phenanthrene compounds, bibenzyls, polysaccharides and flavonoids have been isolated and identified from at least 50 species of Dendrobium. Among them, bibenzyls and polysaccharides are the main active components, phenolics and lignans are widely distributed, sesquiterpenes are the most common chemical constituents in genus Dendrobium plants. The most popular research objects are Dendrobium officinale and Dendrobium huoshanense. CONCLUSIONS Based on traditional folk uses, chemical composition and pharmacological studies, Dendrobium is considered a promising medicinal and edible plant with multiple pharmacological activities. In addition, a large number of clinical applications and further studies on single chemical components based on the diversity of chemical structures should be conducted, which will lay the foundation for the scientific utilization of genus Dendrobium.
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Affiliation(s)
- Pei-Yuan Li
- Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, 650223, China; College of Biological Resources and Environmental Sciences of Hunan Province, Jishou University, Jishou, 416000, China
| | - Li Li
- College of Biological Resources and Environmental Sciences of Hunan Province, Jishou University, Jishou, 416000, China.
| | - Yuan-Zhong Wang
- Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, 650223, 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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Di Fabio G, Zarrelli A. Dihydrophenanthrene Dimers: Why and Where It Is Possible to Isolate Their Precursors. Chem Biodivers 2023; 20:e202201068. [PMID: 36919925 DOI: 10.1002/cbdv.202201068] [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: 11/11/2022] [Accepted: 02/24/2023] [Indexed: 03/16/2023]
Abstract
An interesting class of compounds of natural origin is dihydrophenanthrene dimers, which are characterized by a series of remarkable biological properties. Considering the hypothesis that each dimer is obtained through a biosynthetic mechanism that involves the coupling of the corresponding radicals of the single dihydrophenanthrene unit, we identified 29 dihydrophenanthrenes. Of these dihydrophenanthrenes, 11 were new compounds that could be isolated from 10 different plant species; 11 had already been identified, but not yet isolated in the 17 different plant species from which the corresponding dimers had been isolated; and 7 were known and had been isolated in the same plant sources of the corresponding dimers. A targeted analysis of several natural extracts from specific plant sources would allow the identification of known or new molecules with potential and/or specific biological activities and, in a final analysis, would confirm the relative biosynthetic mechanism.
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Affiliation(s)
- Giovanni Di Fabio
- Department of Chemical Science, University of Naples FEDERICO II, Complesso Monte Sant'Angelo, 80126, Napoli, Italy
| | - Armando Zarrelli
- Department of Chemical Science, University of Naples FEDERICO II, Complesso Monte Sant'Angelo, 80126, Napoli, Italy
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Azpilcueta-Nicolas CR, Meng D, Edelmann S, Lumb JP. Dearomatization of Biaryls through Polarity Mismatched Radical Spirocyclization. Angew Chem Int Ed Engl 2023; 62:e202215422. [PMID: 36454656 DOI: 10.1002/anie.202215422] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/21/2022] [Accepted: 12/01/2022] [Indexed: 12/03/2022]
Abstract
Dearomatization reactions involving radical cyclizations can facilitate the synthesis of complex polycyclic systems that find applications in medicinal chemistry and natural product synthesis. Here we employ redox-neutral photocatalysis to affect a radical spirocyclization that transforms biaryls into spirocyclic cyclohexadienones under mild reaction conditions. In a departure from previously reported methods, our work demonstrates the polarity mismatched addition of a nucleophilic radical to an electron rich arene, and allows the regioselective synthesis of 2,4- or 2,5-cyclohexadienones with broad functional group tolerance. By transforming biaryls into spirocycles, our methodology accesses underexplored three-dimensional chemical space, and provides an efficient means of creating quaternary spirocenters that we apply to the first synthesis of the cytotoxic plant metabolite denobilone A.
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Affiliation(s)
| | - Derek Meng
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Simon Edelmann
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Jean-Philip Lumb
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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10
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Fu X, Chen S, Xian S, Wu Q, Shi J, Zhou S. Dendrobium and its active ingredients: Emerging role in liver protection. Biomed Pharmacother 2023; 157:114043. [PMID: 36462312 DOI: 10.1016/j.biopha.2022.114043] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/14/2022] [Accepted: 11/21/2022] [Indexed: 12/05/2022] Open
Abstract
Dendrobium is a traditional medicinal plant, which has a variety of clinical applications in China. It has been reported that Dendrobium contains various bioactive components, mainly including polysaccharides and alkaloids. Previous studies have shown that Dendrobium has pharmacological activities including antiviral, anti-inflammatory, and antioxidant effects, as well as immune regulation. Particularly, the anti-aging functions and neuroprotective effects of Dendrobium have been well characterized in a wide array of cell and animal models. In recent years, the effect of Dendrobium on the liver has emerged as a new direction to explore its therapeutic benefits and has received more and more attention. This review is focused on the beneficial effects of Dendrobium on liver toxicity and various liver disorders, which presumably are attributed to a consequence of an array of modes of action due to its multiple bioactive components, and largely lack mechanistic and pharmacokinetic characterization. A particular emphasis is placed on the potential action mechanisms related to Dendrobium's liver protection. Research perspectives in regard to the potential therapeutic application for Dendrobium are also discussed in this review.
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Affiliation(s)
- Xiaolong Fu
- 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, China
| | - Shu Chen
- Cell and Tissue Bank of Guizhou Province, Zunyi, Guizhou, China
| | - Siting Xian
- 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, China
| | - Qin Wu
- 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, China
| | - Jingshan Shi
- 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, China
| | - Shaoyu Zhou
- 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, China.
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11
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Zhang ZM, Liu S, Yang H, Wang N, Zou YH, Zhuang PY, Wang XX, Liu H. Chemical constituents from Dendrobium chrysanthum and their chemotaxonomic significance. BIOCHEM SYST ECOL 2022. [DOI: 10.1016/j.bse.2022.104522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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12
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Phenylpropanoid Derivatives from the Tuber of Asparagus cochinchinensis with Anti-Inflammatory Activities. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227676. [PMID: 36431777 PMCID: PMC9697020 DOI: 10.3390/molecules27227676] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/02/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022]
Abstract
Three undescribed phenylpropanoid derivatives, including two new bibenzyl constituents (1-2), one new stilbene constituent (3), together with five known compounds stilbostemin F (4), dihydropinosylvin (5), 2-(4-hydroxyphenyl)ethyl benzoate (6), 1-(4-hydroxybenzoyl)ethanone (7), and 4-hydroxy-3-prenylbenzoic acid (8), were isolated from the tuber of Asparagus cochinchinensis. The structures of 1-8 were elucidated according to UV, IR, HRMS, 1D and 2D-NMR methods together with the published literature. All of the isolated compounds were assessed for anti-inflammatory activity by acting on lipopolysaccharide (LPS)-induced RAW 264.7 macrophage cells in vitro. The results showed that compounds 2 and 5 were found to inhibit the production of nitric oxide (NO) with the IC50 value of 21.7 and 35.8 µM, respectively. In addition, further studies found that compound 2 demonstrated concentration-dependent suppression of the protein expression of iNOS and exerted anti-inflammatory activity via the NF-κB signalling pathway. The present data suggest that phenylpropanoid derivatives from the tuber of A. cochinchinensis might be used as a potential source of natural anti-inflammatory agents.
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13
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Zhai D, Lv X, Chen J, Peng M, Cai J. Recent Research Progress on Natural Stilbenes in Dendrobium Species. Molecules 2022; 27:molecules27217233. [PMID: 36364058 PMCID: PMC9654415 DOI: 10.3390/molecules27217233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/17/2022] [Accepted: 10/20/2022] [Indexed: 12/03/2022] Open
Abstract
Dendrobium is the second biggest genus in the Orchidaceae family, and many of them have been utilized as a traditional Chinese medicine (TCM) for thousands of years in China. In the last few decades, constituents with great chemical diversity were isolated from Dendrobium, and a wide range of biological activities were detected, either for crude extracts or for pure compounds. Stilbene compound is one of the primary active constituents in the genus Dendrobium. At present, 267 stilbene compounds with clarified molecular structures have been extracted and isolated from 52 species of Dendrobium, including 124 phenanthrenes and 143 bibenzyls. At the same time, activity studies have indicated that 157 compounds have pharmaceutical activity. Among them, most of the compounds showed antitumor activity, followed by antioxidant, anti-inflammatory and anti-α-glucosidase inhibitory activities. Additionally, 54 compounds have multiple pharmacological activities, such as confusarin (14), 2,4,7-trihydroxy-9,10-dihydro-phenanthrene (43), moscatilin (148), gigantol (150) and batatasin III (151). This review summarizes current knowledge about the chemical composition of stilbene, bioactivities and pharmacologic effects in 52 species of Dendrobium. We also expect to provide a reference for further research, development and utilization of stilbene constituents in the Dendrobium genus.
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Affiliation(s)
- Denghui Zhai
- Key Laboratory of Glucolipid Metabolic Disorder of Ministry of Education of China, Key Unit of Modulating Liver to Treat Hyperlipemia SATCM, Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Xiaofa Lv
- Key Laboratory of Glucolipid Metabolic Disorder of Ministry of Education of China, Key Unit of Modulating Liver to Treat Hyperlipemia SATCM, Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jingmei Chen
- Key Laboratory of Glucolipid Metabolic Disorder of Ministry of Education of China, Key Unit of Modulating Liver to Treat Hyperlipemia SATCM, Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Minwen Peng
- Key Laboratory of Glucolipid Metabolic Disorder of Ministry of Education of China, Key Unit of Modulating Liver to Treat Hyperlipemia SATCM, Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jinyan Cai
- Key Laboratory of Glucolipid Metabolic Disorder of Ministry of Education of China, Key Unit of Modulating Liver to Treat Hyperlipemia SATCM, Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Correspondence:
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Sulaiman M, Nissapatorn V, Rahmatullah M, Paul AK, Rajagopal M, Rusdi NA, Seelan JSS, Suleiman M, Zakaria ZA, Wiart C. Antimicrobial Secondary Metabolites from the Mangrove Plants of Asia and the Pacific. Mar Drugs 2022; 20:md20100643. [PMID: 36286466 PMCID: PMC9605323 DOI: 10.3390/md20100643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/20/2022] [Accepted: 09/26/2022] [Indexed: 11/07/2022] Open
Abstract
Microbes such as the White Spot Syndrome Virus account for severe losses in the shrimp farming industry globally. This review examines the literature on the mangrove plants of Asia and the Pacific with antibacterial, antifungal, or antiviral activities. All of the available data published on this subject were collected from Google Scholar, PubMed, Science Direct, Web of Science, ChemSpider, PubChem, and a library search from 1968 to 2022. Out of about 286 plant species, 119 exhibited antimicrobial effects, and a total of 114 antimicrobial natural products have been identified including 12 with MIC values below 1 µg/mL. Most of these plants are medicinal. The mangrove plants of Asia and the Pacific yield secondary metabolites with the potential to mitigate infectious diseases in shrimp aquaculture.
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Affiliation(s)
- Mazdida Sulaiman
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Veeranoot Nissapatorn
- School of Allied Health Sciences and World Union for Herbal Drug Discovery (WUHeDD), Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Mohammed Rahmatullah
- Department of Biotechnology & Genetic Engineering, University of Development Alternative, Dhaka 1207, Bangladesh
| | - Alok K. Paul
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia
| | - Mogana Rajagopal
- Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur 56000, Malaysia
| | - Nor Azizun Rusdi
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Jaya Seelan Sathya Seelan
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Monica Suleiman
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Zainul Amiruddin Zakaria
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Christophe Wiart
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
- Correspondence:
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Cai B, Cai X, Xu T, Wang J, Yu Y. Structures and Anti-Inflammatory Evaluation of Phenylpropanoid Derivatives from the Aerial Parts of Dioscorea polystachya. Int J Mol Sci 2022; 23:ijms231810954. [PMID: 36142867 PMCID: PMC9502174 DOI: 10.3390/ijms231810954] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 09/15/2022] [Accepted: 09/17/2022] [Indexed: 11/22/2022] Open
Abstract
Seven undescribed phenylpropanoid constituents, including three new bibenzyl derivatives (1–3) along with four new benzofuran stilbene derivatives (4–7), were isolated from the aerial parts of Dioscorea polystachya. The structures of these compounds were elucidated using a combination of spectroscopic analyses, including UV, IR, HRESIMS, 1D, and 2D NMR. Further, all the compounds were evaluated on the anti-inflammatory activity for their inhibition of nitric oxide (NO) production by RAW 264.7 macrophages cells, and some of them (1–3 and 6) displayed inhibitory activity with IC50 values in the range of 9.3–32.3 μM. Moreover, compound 3 decreased the expression of iNOS in Western blot analysis, suggesting compound 3 is mediated via the suppression of an LPS-induced NF-κB inflammasome pathway.
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Affiliation(s)
- Baixiang Cai
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
- Institute of Medicinal Chemistry, Anhui Academy of Chinese Medicine, Hefei 230012, China
| | - Xinyin Cai
- The MOE Key Laboratory of Standardization of Chinese Medicines and the SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Tao Xu
- Department of Biological and Pharmaceutical Engineering, West Anhui University, Luan 237012, China
| | - Jutao Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
- Institute of Medicinal Chemistry, Anhui Academy of Chinese Medicine, Hefei 230012, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei 230012, China
- Correspondence: (J.W.); or (Y.Y.)
| | - Yang Yu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
- Institute for Pharmacodynamics and Safety Evaluation of Chinese Medicine, Anhui Academy of Chinese Medicine, Hefei 230012, China
- Correspondence: (J.W.); or (Y.Y.)
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Li C, Sun X, Song Z, Sun J, Li Y, Wang N, Zhang D, Ye F, Dai J. Chemical constituents from the stems of Dendrobium gratiosissimum and their biological activities. PHYTOCHEMISTRY 2022; 201:113260. [PMID: 35667577 DOI: 10.1016/j.phytochem.2022.113260] [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: 12/23/2021] [Revised: 05/22/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
Eight C6-C3-based bibenzyl derivatives (dengraphenols A-G, K), three mono-bibenzyls (dengraphenols I, L-M), one bis-bibenzyl (dengraphenol H), one oxyneolignane (dengraphenol J), one phenanthrene (dengraphenol N), and one picrotoxane-type sesquiterpene (dengrasusane A) were isolated from the stems of Dendrobium gratiosissimum. The resolution of dengraphenols A-J by chiral HPLC afforded ten pairs of enantiomers [(±)-dengraphenols A-J]. Their structures with absolute configurations were elucidated on the basis of comprehensive spectroscopic analyses, computational calculation methods and single-crystal X-ray diffraction, among which twenty-four [(±)-dengraphenols A-E, (+)-dengraphenol F, (±)-dengraphenols G-J, dengraphenols K-N, dengrasusane A] were undescribed. Ten compounds [(±)-dengraphenol B, (±)-dengraphenols D-E, (±)-dengraphenol H, (-)-dengraphenol I and dengraphenol N)] showed potent cytotoxicity against eight human cancer cell lines (A431, A2780, H460, HCT8, BGC823, SW1990, Daoy, and HGC27) with IC50 values of 3.77-9.75 μM. At a concentration of 10 μM, (-)-dengraphenol C, (±)-dengraphenol F, and (±)-dengraphenol K exhibited remarkable hepatoprotective activity against APAP-induced toxicity with a cell survival rate of 65.8%, 70.6% and 73.5%, respectively; dengraphenol N displayed significant anti-inflammatory effects; and dengraphenol K showed strong inhibitory activity against α-glucosidase with IC50 values of 5.71 μM. These results would provide potential compounds for drug discovery.
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Affiliation(s)
- Changkang Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China
| | - Xincheng Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China
| | - Zhijun Song
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China
| | - Jiawei Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China
| | - Yan Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China
| | - Nan Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China
| | - Dan Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China
| | - Fei Ye
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China
| | - Jungui Dai
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China.
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Yu ZX, Wang CH, Nong XH, Chen DL, Xu ML, Li XB, Liu YY, Chen GY. Callnudoids A-H: Highly modified labdane diterpenoids with anti-inflammation from the leaves of Callicarpa nudiflora. PHYTOCHEMISTRY 2022; 201:113253. [PMID: 35644486 DOI: 10.1016/j.phytochem.2022.113253] [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: 01/23/2022] [Revised: 05/06/2022] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
Eight undescribed 3,4-seco-norlabdane diterpenoids, callnudoids A-H, as well as two known analogues were isolated from the leaves of Callicarpa nudiflora. The structures were elucidated using spectroscopic methods and were compared with published NMR spectroscopic data. The absolute configurations of callnudoids D and E were defined based on ECD data or single-crystal X-ray diffraction. Callnudoids A-C are the highly modified labdane diterpenoids featuring rearranged 3,4-seco-ring and the formation of an undescribed cyclohexene moiety via C2-C18 cyclization. They only contain 15 carbon atoms on the carbon skeleton. Callnudoid D represents the unusual 3,4-seco-15,16-norlabdane diterpenoid with C13-C17 cyclization, and a putative biosynthesis pathway for callnudoids A, B, D, and E was proposed. All compounds were evaluated for their anti-inflammatory activities by inhibiting the lipopolysaccharide (LPS)-induced nitric oxide (NO) released in RAW264.7 cells; callnudoids A-E and H, and methylcallicarpate obviously inhibited pro-inflammatory cytokines TNF-α and IL-1β in a dose-dependent manner.
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Affiliation(s)
- Zhang-Xin Yu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education & Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
| | - Can-Hong Wang
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, 570311, China
| | - Xu-Hua Nong
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education & Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
| | - De-Li Chen
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, 570311, China
| | - Meng-Ling Xu
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, 570311, China
| | - Xiao-Bao Li
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education & Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
| | - Yang-Yang Liu
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, 570311, China.
| | - Guang-Ying Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education & Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China.
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19
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Xu XF, Dai DC, Yan H, Zhang Y. Chemical constituents from the Dendrobium officinale and their chemotaxonomic significance. BIOCHEM SYST ECOL 2022. [DOI: 10.1016/j.bse.2022.104420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Yu JH, Yu ZP, Capon RJ, Zhang H. Natural Enantiomers: Occurrence, Biogenesis and Biological Properties. Molecules 2022; 27:molecules27041279. [PMID: 35209066 PMCID: PMC8880303 DOI: 10.3390/molecules27041279] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 02/01/2023] Open
Abstract
The knowledge that natural products (NPs) are potent and selective modulators of important biomacromolecules (e.g., DNA and proteins) has inspired some of the world’s most successful pharmaceuticals and agrochemicals. Notwithstanding these successes and despite a growing number of reports on naturally occurring pairs of enantiomers, this area of NP science still remains largely unexplored, consistent with the adage “If you don’t seek, you don’t find”. Statistically, a rapidly growing number of enantiomeric NPs have been reported in the last several years. The current review provides a comprehensive overview of recent records on natural enantiomers, with the aim of advancing awareness and providing a better understanding of the chemical diversity and biogenetic context, as well as the biological properties and therapeutic (drug discovery) potential, of enantiomeric NPs.
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Affiliation(s)
- Jin-Hai Yu
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (J.-H.Y.); (Z.-P.Y.)
| | - Zhi-Pu Yu
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (J.-H.Y.); (Z.-P.Y.)
| | - Robert J. Capon
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
- Correspondence: (R.J.C.); (H.Z.)
| | - Hua Zhang
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
- Correspondence: (R.J.C.); (H.Z.)
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21
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WANG G, WANG J, DENG Y, QIN L, HE Y, TAN D. Chemical constituents and nutritional health functions of Dendrobium nobile: a review. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.84522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | | | - Lin QIN
- Zunyi Medical University, China
| | - Yuqi HE
- Zunyi Medical University, China
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22
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Zhang MS, Linghu L, Wang G, He YQ, Sun CX, Xiao SJ. Dendrobine-type alkaloids from Dendrobium nobile. Nat Prod Res 2021; 36:5393-5399. [PMID: 34930072 DOI: 10.1080/14786419.2021.2019731] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Six dendrobine-type alkaloids were isolated from the tubes of Dendrobium nobile by silica gel, Sephadex LH-20 gel column chromatography, and preparative HPLC. Compound 1 is a new alkaloid containing a pair of amide tautomers, whereas compound 2 is a new dendrobine-type alkaloid. By using spectroscopic techniques including 1 D and 2 D NMR, the structures of compounds 1‒6 were identified as N-methoxylcarbonyldendrobine (1), dendronboic acid (2), dendrobine (3), 6-hydroxyldendrobine (4), dendrobine N-oxide (5), and denrine (6). The cytotoxic effects of the isolated compounds on two human tumour cell lines (HCT-116 and SW1990) were evaluated using MTT assay.
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Affiliation(s)
| | - Lang Linghu
- School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Gang Wang
- School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Yu-Qi He
- School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Cheng-Xin Sun
- School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Shi-Ji Xiao
- School of Pharmacy, Zunyi Medical University, Zunyi, China.,State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 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, China
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Badalamenti N, Russi S, Bruno M, Maresca V, Vaglica A, Ilardi V, Zanfardino A, Di Napoli M, Varcamonti M, Cianciullo P, Calice G, Laurino S, Falco G, Basile A. Dihydrophenanthrenes from a Sicilian Accession of Himantoglossum robertianum (Loisel.) P. Delforge Showed Antioxidant, Antimicrobial, and Antiproliferative Activities. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10122776. [PMID: 34961247 PMCID: PMC8708532 DOI: 10.3390/plants10122776] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/08/2021] [Accepted: 12/13/2021] [Indexed: 05/02/2023]
Abstract
The peculiar aspect that emerges from the study of Orchidaceae is the presence of various molecules, which are particularly interesting for pharmaceutical chemistry due to their wide range of biological resources. The aim of our study was to investigate the properties of two dihydrophenanthrenes, isolated, for the first time, from Himantoglossum robertianum (Loisel.) P. Delforge (Orchidaceae) bulbs and roots. Chemical and spectroscopic study of the bulbs and roots of Himantoglossumrobertianum (Loisel.) P. Delforge resulted in the isolation of two known dihydrophenanthrenes-loroglossol and hircinol-never isolated from this plant species. The structures were evaluated based on 1H-NMR, 13C-NMR, and two-dimensional spectra, and by comparison with the literature. These two molecules have been tested for their possible antioxidant, antimicrobial, antiproliferative, and proapoptotic activities. In particular, it has been shown that these molecules cause an increase in the activity of superoxide dismutase (SOD), catalase (CAT), and glutathione S-transferase (GST) in polymorphonuclear leukocytes (PMN); show antimicrobial activity against Escherichia coli and Staphylococcus aureus, and have anti-proliferative effects on gastric cancer cell lines, inducing apoptosis effects. Therefore, these two molecules could be considered promising candidates for pharmaceutical and nutraceutical preparations.
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Affiliation(s)
- Natale Badalamenti
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy; (M.B.); (A.V.); (V.I.)
- Correspondence: (N.B.); (V.M.); (S.L.); Tel.: +39-081-2538508 (V.M.)
| | - Sabino Russi
- IRCCS CROB—Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, Italy; (S.R.); (G.C.)
| | - Maurizio Bruno
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy; (M.B.); (A.V.); (V.I.)
- Centro Interdipartimentale di Ricerca “Riutilizzo bio-based degli scarti da matrici agroalimentari” (RIVIVE), Università di Palermo, 90128 Palermo, Italy
| | - Viviana Maresca
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
- Correspondence: (N.B.); (V.M.); (S.L.); Tel.: +39-081-2538508 (V.M.)
| | - Alessandro Vaglica
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy; (M.B.); (A.V.); (V.I.)
| | - Vincenzo Ilardi
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy; (M.B.); (A.V.); (V.I.)
| | - Anna Zanfardino
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
| | - Michela Di Napoli
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
| | - Mario Varcamonti
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
| | - Piergiorgio Cianciullo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
| | - Giovanni Calice
- IRCCS CROB—Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, Italy; (S.R.); (G.C.)
| | - Simona Laurino
- IRCCS CROB—Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, Italy; (S.R.); (G.C.)
- Correspondence: (N.B.); (V.M.); (S.L.); Tel.: +39-081-2538508 (V.M.)
| | - Geppino Falco
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
| | - Adriana Basile
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
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Nam B, Jang HJ, Han AR, Kim YR, Jin CH, Jung CH, Kang KB, Kim SH, Hong MJ, Kim JB, Ryu HW. Chemical and Biological Profiles of Dendrobium in Two Different Species, Their Hybrid, and Gamma-Irradiated Mutant Lines of the Hybrid Based on LC-QToF MS and Cytotoxicity Analysis. PLANTS 2021; 10:plants10071376. [PMID: 34371579 PMCID: PMC8309310 DOI: 10.3390/plants10071376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 11/16/2022]
Abstract
The Dendrobium species (Orchidaceae) has been cultivated as an ornamental plant as well as used in traditional medicines. In this study, the chemical profiles of Dendrobii Herba, used as herbal medicine, Dendrobium in two different species, their hybrid, and the gamma-irradiated mutant lines of the hybrid, were systematically investigated via ultra-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-QToF MS). Among the numerous peaks detected, 17 peaks were unambiguously identified. Gigantol (1), (1R,2R)-1,7-hydroxy-2,8-methoxy-2,3-dihydrophenanthrene-4(1H)-one (2), tristin (3), (−)-syringaresinol (4), lusianthridin (5), 2,7-dihydroxy-phenanthrene-1,4-dione (6), densiflorol B (7), denthyrsinin (8), moscatilin (9), lusianthridin dimer (10), batatasin III (11), ephemeranthol A (12), thunalbene (13), dehydroorchinol (14), dendrobine (15), shihunine (16), and 1,5,7-trimethoxy-2-phenanthrenol (17), were detected in Dendrobii Herba, while 1, 2, and 16 were detected in D. candidum, 1, 11, and 16 in D. nobile, and 1, 2, and 16 in the hybrid, D. nobile × candidum. The methanol extract taken of them was also examined for cytotoxicity against FaDu human hypopharynx squamous carcinoma cells, where Dendrobii Herba showed the greatest cytotoxicity. In the untargeted metabolite analysis of 436 mutant lines of the hybrid, using UPLC-QToF MS and cytotoxicity measurements combined with multivariate analysis, two tentative flavonoids (M1 and M2) were evaluated as key markers among the analyzed metabolites, contributing to the distinction between active and inactive mutant lines.
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Affiliation(s)
- Bomi Nam
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
- Institute of Natural Cosmetic Industry for Namwon, Namwon-si 55801, Jeollabuk-do, Korea
| | - Hyun-Jae Jang
- Natural Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), Cheongju-si 28116, Chungbuk-do, Korea;
| | - Ah-Reum Han
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
| | - Ye-Ram Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
| | - Chang-Hyun Jin
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
| | - Chan-Hun Jung
- Jeonju AgroBio-Materials Institute, Jeonju-si 54810, Jeollabuk-do, Korea;
| | - Kyo-Bin Kang
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Sookmyung Women’s University, Seoul 04310, Korea;
| | - Sang-Hoon Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
| | - Min-Jeong Hong
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
| | - Jin-Baek Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Jeollabuk-do, Korea; (B.N.); (A.-R.H.); (Y.-R.K.); (C.-H.J.); (S.-H.K.); (M.-J.H.); (J.-B.K.)
| | - Hyung-Won Ryu
- Natural Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), Cheongju-si 28116, Chungbuk-do, Korea;
- Correspondence: ; Tel.: +82-43-240-6117
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Wang Y, Liao X, Zhou C, Hu L, Wei G, Huang Y, Lei Z, Ren Z, Liu Z, Liu Z. Identification of C-glycosyl flavones and quality assessment in Dendrobium nobile. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9012. [PMID: 33238063 DOI: 10.1002/rcm.9012] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 11/13/2020] [Accepted: 11/22/2020] [Indexed: 06/11/2023]
Abstract
RATIONALE Flavones are significant indicators of quality in traditional Chinese medicines (TCMs) and thus play a significant role in the quality control of TCMs in the pharmaceutical industry. Most flavones in Dendrobium nobile Lindl, a TCM with a long cultivation history and rich sources, have not been identified. This study was aimed at identifying the flavones in D. nobile from various habitats. METHODS High-performance liquid chromatography (HPLC) coupled with diode-array detection and HPLC multiple-stage tandem mass spectrometry was used to identify the chemical constituents of D. nobile from various habitats, and a method was established to determine the content of vicenin II, violanthin and isoviolanthin. Hierarchical cluster analysis, principal component analysis and orthogonal partial least-squares discriminant analysis were used to analyze the variations among 26 batches from different habitats. RESULTS A total of 33 flavones were tentatively identified. Twenty-five flavones, previously undescribed in D. nobile, were acylated by p-coumaroyl, feruloyl, sinapoyl or 3-hydroxy-3-methylglutaryl. The D. nobile habitats were distinguished by significant differences in their flavone content. The C-glycosyl flavones were demonstrated to be characteristic compounds for evaluating D. nobile from various habitats. In particular, flavones acylated with 3-hydroxy-3-methylglutaryl were specific compounds that were only detected in samples from Yunnan. CONCLUSIONS The results of this study could be used to improve the quality control of D. nobile and could provide references for the identification of acylated C-glycosyl flavones in other natural products.
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Affiliation(s)
- Yawen Wang
- College of the First Clinical Medical, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Xian Liao
- First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Chujuan Zhou
- Guangzhou Medical University Second Affiliated Hospital, Guangzhou, Guangdong, 510260, China
| | - Li Hu
- College of the First Clinical Medical, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Gang Wei
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Yuechun Huang
- College of the First Clinical Medical, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
- First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China
| | - Zhouxi Lei
- Guangzhou Baiyunshan Chenliji Pharmaceutical Co. Ltd, Guangzhou, Guangdong, 510220, China
| | - Zhiyao Ren
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Zhixia Liu
- Chishui Zhilv Dendrobium Ecological Park Development Co. Ltd, Zunyi, Guizhou, 564700, China
| | - Zhihua Liu
- Chishui Zhilv Dendrobium Ecological Park Development Co. Ltd, Zunyi, Guizhou, 564700, China
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Comparative Cytotoxic Activity of Wild Harvested Stems and In Vitro-Raised Protocorms of Dendrobium chryseum Rolfe in Human Cervical Carcinoma and Glioblastoma Cell Lines. Adv Pharmacol Pharm Sci 2021; 2021:8839728. [PMID: 33506210 PMCID: PMC7808824 DOI: 10.1155/2021/8839728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/24/2020] [Accepted: 12/16/2020] [Indexed: 12/04/2022] Open
Abstract
From the medicinal orchid Dendrobium chryseum Rolfe, which is used in traditional and folk Chinese medicine, the protocorms were raised in Murashige and Skoog (MS) media in three strengths, full strength (FMS), half strength (1/2 MS), and quarter strength (1/4 MS), with or without the phytohormones 6-benzylaminopurine (BAP) and 1-naphthaleneacetic acid (NAA) and coconut water (CW). The comparative cytotoxic activities of the wild and in vitro-raised protocorms were evaluated in human cervical carcinoma (HeLa) and human glioblastoma (U251) cell lines by MTT assay. In in vivo and in vitro, the methanol extracts of D. chryseum showed significant cytotoxic activities. Significant growth inhibition (%) and potent IC50 values were demonstrated in HeLa cell lines (49.79% (210.5 μg/mL) for in vitro-raised Dendrobium chryseum (DCT) versus 46.97% (226.5 μg/mL) for wild Dendrobium chryseum (DCW)). Similarly, activities against U251 cell lines exhibited also significant inhibition (28.76% (612.54 μg/mL) for DCW and 17.15% (1059.92 μg/mL) for DCT). The cytotoxic activities of both, wild and tissue-cultured samples, were superior in HeLa cells. In U251 cells, the wild sample was more active than the tissue-cultured one with a moderate cytotoxic effect. Hence, protocorm culture may therefore be a promising future tool for producing pharmacologically bioactive compounds in medicinal orchids. Such sustainable technology approach will minimize the pressure on the natural population of threatened but commercially important medicinal orchids.
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Bisht R, Bhattacharyya A, Shrivastava A, Saxena P. An Overview of the Medicinally Important Plant Type III PKS Derived Polyketides. FRONTIERS IN PLANT SCIENCE 2021; 12:746908. [PMID: 34721474 PMCID: PMC8551677 DOI: 10.3389/fpls.2021.746908] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 09/08/2021] [Indexed: 05/06/2023]
Abstract
Plants produce interesting secondary metabolites that are a valuable source of both medicines for human use, along with significant advantages for the manufacturer species. The active compounds which lead to these instrumental effects are generally secondary metabolites produced during various plant growth phases, which provide the host survival advantages while affecting human health inadvertently. Different chemical classes of secondary metabolites are biosynthesized by the plant type III polyketide synthases (PKSs). They are simple homodimeric proteins with the unique mechanistic potential to produce a broad array of secondary metabolites by utilizing simpler starter and extender units. These PKS derived products are majorly the precursors of some important secondary metabolite pathways leading to products such as flavonoids, stilbenes, benzalacetones, chromones, acridones, xanthones, cannabinoids, aliphatic waxes, alkaloids, anthrones, and pyrones. These secondary metabolites have various pharmaceutical, medicinal and industrial applications which make biosynthesizing type III PKSs an important tool for bioengineering purposes. Because of their structural simplicity and ease of manipulation, these enzymes have garnered interest in recent years due to their application in the generation of unnatural natural polyketides and modified products in the search for newer drugs for a variety of health problems. The following review covers the biosynthesis of a variety of type III PKS-derived secondary metabolites, their biological relevance, the associated enzymes, and recent research.
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Liu Y, Lin F, Tan Y, Yang J, Zhang B, Zhou X, Song X. Three New Phenanthraquinones from the Root of Dendrobium nobile. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202012005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wang P, Chen X, Cai CH, Kong FD, Huang SZ, Yuan JZ, Xu XL, Mei WL, Dai HF. A new picrotoxane-type sesquiterpene from Dendrobium nobile Lindl. Nat Prod Res 2020; 36:2112-2117. [PMID: 33331167 DOI: 10.1080/14786419.2020.1851224] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
A picrotoxane-type sesquiterpene, dendroterpene E (1), together with five benzene derivatives (2-6), were isolated from the stems of Dendrobium nobile Lindl. Their structures were elucidated by spectroscopic analysis and X-ray diffraction analysis. Compound 1 was a new picrotoxane-type sesquiterpene with a C-9/C-1/O/C-11 oxetane ring, which was first encountered in this type of compounds. Compounds 1-3 exhibited inhibitory activities against α-glycosidase.
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Affiliation(s)
- Pei Wang
- Hainan Key Laboratory of Research and Development of Natural Product from Li Folk Medicine, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, PR China
| | - Xin Chen
- Hainan Key Laboratory of Research and Development of Natural Product from Li Folk Medicine, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, PR China.,Nanjing Agricultural University, Nanjing, PR China
| | - Cai-Hong Cai
- Hainan Key Laboratory of Research and Development of Natural Product from Li Folk Medicine, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, PR China
| | - Fan-Dong Kong
- Hainan Key Laboratory of Research and Development of Natural Product from Li Folk Medicine, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, PR China
| | - Sheng-Zhuo Huang
- Hainan Key Laboratory of Research and Development of Natural Product from Li Folk Medicine, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, PR China
| | - Jing-Zhe Yuan
- Hainan Key Laboratory of Research and Development of Natural Product from Li Folk Medicine, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, PR China
| | - Xing-Lian Xu
- Nanjing Agricultural University, Nanjing, PR China
| | - Wen-Li Mei
- Hainan Key Laboratory of Research and Development of Natural Product from Li Folk Medicine, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, PR China
| | - Hao-Fu Dai
- Hainan Key Laboratory of Research and Development of Natural Product from Li Folk Medicine, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, PR China
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Microbial Glycosylation of Phenanthrene and Bibenzyls by Mucor hiemalis. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20974508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Microbial transformation of denthyrsinin (1), gigantol (2), and batatasin III (3), the major constituents of Dendrobium species (Orchidaceae), was performed using the filamentous fungus Mucor hiemalis KCTC 26779. Three glycosylated metabolites were obtained in the biotransformation of 1-3, and their structures were identified as denthyrsinin-6- O-β-d-glucoside (4), gigantol-5- O-β-d-glucoside (5), and batatasin III-3- O-β-d-glucoside (6) by analyzing 1-dimensional and 2-dimensional-nuclear magnetic resonance spectra, as well as high-resolution electrospray ionization mass spectral data. Among them, metabolite 4 has not been previously reported. Mucor hiemalis was revealed to catalyze enzymatically glucosylation of the hydroxyl group of phenanthrenes and bibenzyls. This research provides an efficient approach for the glycosylation of phenanthrenes and bibenzyls and can expand the library of available phenanthrene and bibenzyl derivatives for further biological evaluations.
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Investigation of the Effects and Mechanisms of Dendrobium loddigesii Rolfe Extract on the Treatment of Gout. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:4367347. [PMID: 33062010 PMCID: PMC7547349 DOI: 10.1155/2020/4367347] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/15/2020] [Accepted: 09/19/2020] [Indexed: 11/18/2022]
Abstract
Objective Gout is a chronic disease that causes inflammatory arthritis, which is closely related to urate accumulation induced by a disorder of uric acid metabolism and the consequent deposition of monosodium urate crystals. Dendrobium loddigesii Rolfe is an herbal medicine that has been used in some traditional Chinese medicine formulae in the treatment of gout. This study aimed to explore and verify the antigout activity of Dendrobium loddigesii extract (DLE) on alleviating the hyperuricaemia of mice and the acute gouty arthritis of rats. Methods An animal model of hyperuricaemia was established using potassium oxonate (PO). We analysed the expression of uric acid transporter mRNA in the kidney in the hyperuricaemic mice after treatment with DLE. Simultaneously, a monosodium urate crystal-induced acute gouty arthritis rat model was used to evaluate the effects of DLE, according to the level of ankle swelling, as well as the protein levels of inflammatory receptors and cytokines, as assayed by WB and ELISA. Results DLE alleviated hyperuricaemia in mice and inhibited acute gouty arthritis in rats (P < 0.05). Meanwhile, DLE regulated the levels of uric acid transporters mRNA transcripts, including mouse organic anion transporter 1 (mOAT1), organic anion transporter 3 (mOAT3), urate transporter 1 (mURAT1), and glucose transporter 9 (mGLUT9) in the kidney (P < 0.05), suggesting that DLE promoted uric acid metabolism. Furthermore, DLE significantly suppressed the protein levels of TLRs, MyD88, and NF-κB in the ankle joint's synovium (P < 0.05), and the serum levels of IL-1β, IL-6, and TNF-α were also reduced, which demonstrated the anti-inflammatory effects of DLE. Conclusion DLE alleviates hyperuricaemia by regulating the transcription level of uric acid transporters in the kidney. It also inhibits acute gouty arthritis by inhibiting the pathway of TLRs/MyD88/NF-κB in the ankle joint's synovium. The findings of the present study imply that DLE alleviates gout by promoting uric acid metabolism and inhibiting inflammation related to the TLRs/MyD88/NF-κB pathway.
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Nie X, Chen Y, Li W, Lu Y. Anti-aging properties of Dendrobium nobile Lindl.: From molecular mechanisms to potential treatments. JOURNAL OF ETHNOPHARMACOLOGY 2020; 257:112839. [PMID: 32268205 DOI: 10.1016/j.jep.2020.112839] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 03/21/2020] [Accepted: 04/01/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dendrobium Nobile Lindl. (DNL) is one of the central herbs in traditional Chinese medicine which mainly distributes in Guizhou, Yunnan, Guangxi and other sub-tropical areas south of the Yangtze River. In the past decades, it has been used to treat tumors, hyperglycemia, hyperlipidemia, and diseases of the nervous system that may be caused by aging. AIM OF THE REVIEW The purpose of this review is to summarize the anti-aging information of DNL from the molecular mechanism level, including classic theories related to aging, main chemical components, pharmacological research and anti-aging theory based on traditional Chinese medicine theory, for exploring the future development and clinical treatment. MATERIALS AND METHODS The information in this paper has been collected from the scientific literature databases including PubMed, Google Scholar, Web of Science, Science Direct, Springer, China National Knowledge Infrastructure, published books, Ph.D. and M.S. dissertations systematically. RESULTS In this paper, we have reviewed the several mechanisms underlying the potential effects of DNL on the prevention of aging, including the scavenging of free radicals for oxidation, delaying of DNA impairment, inhibition of apoptosis, and alteration of DNA methylation. Together with the theory of telomeres, this review also has summarized recent research progress in the use of DNL and its traditional efficacy. CONCLUSIONS We conclude that "strengthening Yin and benefiting the spirit", "thickening the intestine and stomach", "lightning the body and prolonging the life-span", and delaying aging, are key effects of DNL that can be used to combat age-related diseases (ARDs) such as Alzheimer's disease, hyperlipidemia, and diabetes. This review provides a reference for future study of ARDs and the clinical application of DNL.
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Affiliation(s)
- Xuqiang Nie
- College of Pharmacy, Zunyi Medical University, Zunyi, 563000, China; Joint International Research Laboratory of Ethnomedicine of Chinese Ministry of Education, Zunyi Medical University, Zunyi, 563000, China.
| | - Yu Chen
- College of Pharmacy, Zunyi Medical University, Zunyi, 563000, China
| | - Wei Li
- College of Pharmacy, Zunyi Medical University, Zunyi, 563000, China
| | - Yanliu Lu
- Key Lab of the Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Zunyi, 563000, China
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He L, Su Q, Bai L, Li M, Liu J, Liu X, Zhang C, Jiang Z, He J, Shi J, Huang S, Guo L. Recent research progress on natural small molecule bibenzyls and its derivatives in Dendrobium species. Eur J Med Chem 2020; 204:112530. [PMID: 32711292 DOI: 10.1016/j.ejmech.2020.112530] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/14/2020] [Accepted: 05/30/2020] [Indexed: 02/05/2023]
Abstract
Orchidaceous plant Dendrobium genus is often used as a tonic, and its phenolic components have attracted attention for its anti-tumor and anti-diabetic complications. Bibenzyls is one of the essential phenolic active ingredients in the Dendrobium genus. At present, 89 bibenzyl derivatives have been extracted and identified from 46 Dendrobium species. The activity studies have shown that 42 compounds have pharmaceutical activity. Among them, 23 compounds showed antitumor activity; 7 compounds showed anti-diabetes and its complications activity; 10 compounds exhibited neuroprotective effects; 18 compounds showed antioxidant effects; 11 compounds had anti-inflammatory activity; 3 compounds had Antiplatelet aggregation effects; 3 compounds had antibacterial and antiviral effects. The Bibenzyls is small-molecular compounds of natural origin and widely sourced. Previous studies showed that the bibenzyls has good anti-tumor, anti-diabetes and its complications, and neuroprotective effects, and it has great potential for treating tumors, diabetes and its complications, Alzheimer's disease (AD) and Parkinson's disease (PD). Additionally, compounds such as moscatilin (1), gigantol (2) and chrysotoxine (3) have been further studied as lead compounds, and compounds exhibited therapeutical effects had been synthesized. Enough pieces of evidences have shown that the Bibenzyls have good development prospects. This article reviews the pharmacological effects of bibenzyls in Dendrobium species and provides an idea for its further development.
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Affiliation(s)
- Li He
- The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicines, State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Qian Su
- Health Management Center, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, 610072, China
| | - Lan Bai
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Meifeng Li
- The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicines, State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Juanru Liu
- The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicines, State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xiaomei Liu
- The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicines, State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Cunyan Zhang
- The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicines, State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Zhongliang Jiang
- Department of Hematology, Miller School of Medicine, University of Miami, Miami, USA
| | - Jun He
- State Key Laboratory of Biotherapy, Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Jianyou Shi
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China.
| | - Shan Huang
- Cancer Center, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China.
| | - Li Guo
- The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicines, State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
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Ci R, Zhang K, Zhu A, Zang W. Dendrobine attenuates isoniazid- and rifampicin-induced liver injury by inhibiting miR-295-5p. Hum Exp Toxicol 2020; 39:1671-1680. [PMID: 32633153 DOI: 10.1177/0960327120937047] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The present study aims to investigate the protective effects of Dendrobine and its underlying mechanisms on liver injury induced by isoniazid (INH) and rifampicin (RIF). A mouse model of liver injury was induced by intragastrically administration of 100 mg/kg INH and 100 mg/kg RIF for 14 days. The mice were intragastrically administrated with Dendrobine (50, 100, and 200 mg/kg) before the administration of INH and RIF. Serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were determined. Oxidative stress markers including glutathione, superoxide dismutase, and malondialdehyde in the liver were measured and liver histopathological examinations were performed. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) and Western blot were applied to determine the mRNA and protein expressions, respectively. Luciferase reporter assay was used to evaluate the interactions between miR-295-5p and CYP1A2. Dendrobine significantly decreased serum ALT and AST and inhibited the liver index and ameliorated the liver histological changes induced by INH and RIF. Besides, Dendrobine also regulated oxidative stress status in the liver by the regulation of CYP1A2. Moreover, mmu-miR-295-5p was identified to target CYP1A2 and to regulate the expression of CYP1A2. In summary, Dendrobine ameliorated INH and RIF induced mouse liver injury by miR-295-5p-mediated CYP1A2 expression.
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Affiliation(s)
- R Ci
- Department of Tuberculosis, Shijiazhuang No. 5 City Hospital, Shijiazhuang, Hebei, China
| | - K Zhang
- Department of Tuberculosis, Shijiazhuang No. 5 City Hospital, Shijiazhuang, Hebei, China
| | - A Zhu
- Department of Tuberculosis, Shijiazhuang No. 5 City Hospital, Shijiazhuang, Hebei, China
| | - W Zang
- Department of Tuberculosis, Shijiazhuang No. 5 City Hospital, Shijiazhuang, Hebei, China
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Zhang J, Ye Q, Yin C, Wu A, Xu X. xOPBE: A Specialized Functional for Accurate Prediction of 13C Chemical Shifts. J Phys Chem A 2020; 124:5824-5831. [PMID: 32579357 DOI: 10.1021/acs.jpca.0c02873] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In this study, we present a new hybrid functional denoted as xOPBE, which is optimized at the 6-311+G(2d,p) basis set and designed with a specific aim of providing accurate 13C chemical shifts. By mixing the Hartree-Fock exchange into the OPBE functional, xOPBE provides a significantly improved overall performance as compared to its parent OPBE functional, while OPBE was shown previously as an excellent functional for 13C chemical shifts. Even in the case of the 1-adamantyl cation, for which OPBE completely fails in reproducing the experimental results, xOPBE still performs very well with similar accuracy as the standard CCSD(T) method with a large basis set. Our results also demonstrate that xOPBE not only can improve quantitatively the description of the correct assignments given by OPBE but also can revert OPBE's incorrect assignments qualitatively. Thus, we would like to recommend the use of xOPBE for routine evaluations of 13C chemical shifts.
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Affiliation(s)
- Jinkun Zhang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen University, Xiamen 361005, China
| | - Qing Ye
- Department of Chemistry, College of Chemistry and Chemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen University, Xiamen 361005, China
| | - Chao Yin
- Department of Chemistry, College of Chemistry and Chemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen University, Xiamen 361005, China
| | - Anan Wu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen University, Xiamen 361005, China
| | - Xin Xu
- Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, MOE Key Laboratory of Computational Physical Sciences, Department of Chemistry, Fudan University, Shanghai 200438, China
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Cheng L, Guo DL, Zhang MS, Linghu L, Fu SB, Deng Y, He YQ, Xiao SJ. Dihydrophenanthrofurans and bisbibenzyl derivatives from the stems of Dendrobium nobile. Fitoterapia 2020; 143:104586. [DOI: 10.1016/j.fitote.2020.104586] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/29/2020] [Accepted: 03/30/2020] [Indexed: 01/16/2023]
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Yu Z, Wang C, Zheng W, Chen D, Liu Y, Yang Y, Wei J. Anti-inflammatory 5,6,7,8-tetrahydro-2-(2-phenylethyl)chromones from agarwood of Aquilaria sinensis. Bioorg Chem 2020; 99:103789. [PMID: 32229346 DOI: 10.1016/j.bioorg.2020.103789] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/17/2020] [Accepted: 03/21/2020] [Indexed: 11/17/2022]
Abstract
Four new 5,6,7,8-tetrahydro-2-(2-phenylethyl)chromones, aqulisinone A (1), (5S, 6R,7S,8S)-8-chloro-5,6,7-trihydroxy-2-[2-(4'-methoxyphenylethyl)]-5,6,7,8-tetrahydrochromone (2), (5S,6R,7S,8S)-8-chloro-5,6,7-trihydroxy-2-(2-phenylethyl)-5,6,7,8-tetrahydrochromone (3), (5S*,6R*,7R*,8S*)-8-chloro-5-ethoxy-6,7-dihydroxy-2-[2-(3'-hydroxy-4'-methoxy-phenylethyl)-5,6,7,8-tetrahydrochromone (4), and seven known analogues (5-11) were isolated from agarwood produced of Aquilaria sinensis. Among the new compounds, 4 is an artifact. The structures were elucidated using spectroscopic methods and by comparison with published NMR spectroscopic data. The absolute configurations of 1-3 were defined based on single-crystal X-ray diffraction and electronic circular dichroism (ECD) data. Compound 1 features a (5,5'')-carbon-carbon bond linkage connecting two 2-(2-phenylethyl)chromone monomeric units. All the new compounds were evaluated for their anti-inflammatory activities by inhibiting the lipopolysaccharide (LPS)-induced nitric oxide (NO) release in RAW264.7 cells, 2 with an IC50 value of 3.46 μM.
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Affiliation(s)
- Zhangxin Yu
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou 570311, PR China
| | - Canhong Wang
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou 570311, PR China
| | - Wei Zheng
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou 570311, PR China
| | - Deli Chen
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou 570311, PR China
| | - Yangyang Liu
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou 570311, PR China.
| | - Yun Yang
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou 570311, PR China
| | - Jianhe Wei
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou 570311, PR China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education & National Engineering Laboratory for Breeding of Endangered Medicinal Materials, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, PR China.
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Liu GY, Tan L, Cheng L, Ding LS, Zhou Y, Deng Y, He YQ, Guo DL, Xiao SJ. Dendrobine-type alkaloids and bibenzyl derivatives from Dendrobium findlayanum. Fitoterapia 2020; 142:104497. [DOI: 10.1016/j.fitote.2020.104497] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 01/26/2023]
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Lee E, Han AR, Nam B, Kim YR, Jin CH, Kim JB, Eun YG, Jung CH. Moscatilin Induces Apoptosis in Human Head and Neck Squamous Cell Carcinoma Cells via JNK Signaling Pathway. Molecules 2020; 25:molecules25040901. [PMID: 32085431 PMCID: PMC7071095 DOI: 10.3390/molecules25040901] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/14/2020] [Accepted: 02/18/2020] [Indexed: 12/21/2022] Open
Abstract
Dendrobii Herba is an herbal medicine that uses the stems of Dendrobium species (Orchidacea). It has been traditionally used to treat fever, hydrodipsomania, stomach disorders, and amyotrophia. In our previous study, a bibenzyl compound, moscatilin, which is isolated from Dendrobii Herba, showed potent cytotoxicity against a FaDu human pharyngeal squamous carcinoma cell line. Prompted by this finding, we performed additional studies in FaDu cells to investigate the mechanism of action. Moscatilin induced FaDu cell death by using 5 μM of concentration and by mediating apoptosis, whereas cell proliferation following treatment with 1 μM of moscatilin was not suppressed to the same levels as by the anti-cancer agent, cisplatin. Apoptosis-related protein expression (cleaved caspase-8, cleaved caspase-7, cytochrome c, cleaved caspase-9, cleaved caspase-3, and poly (ADP-ribose) polymerase (PARP) was increased by treating with 5 μM of moscatilin. This suggests that moscatilin-mediated apoptosis is associated with the extrinsic and intrinsic apoptotic signaling pathways. In addition, moscatilin-induced apoptosis was mediated by the c-Jun N-terminal kinase (JNK) signaling pathway. Overall, this study identified additional biological activity of moscatilin derived from natural products and suggested its potential application as a chemotherapeutic agent for the management of head and neck squamous cell carcinoma.
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Affiliation(s)
- Eunji Lee
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Kyung Hee University, Seoul 02447, Korea; (E.L.); (Y.-G.E.)
| | - Ah-Reum Han
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do 56212, Korea; (A.-R.H.); (B.N.); (Y.-R.K.); (C.H.J.); (J.-B.K.)
| | - Bomi Nam
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do 56212, Korea; (A.-R.H.); (B.N.); (Y.-R.K.); (C.H.J.); (J.-B.K.)
| | - Ye-Ram Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do 56212, Korea; (A.-R.H.); (B.N.); (Y.-R.K.); (C.H.J.); (J.-B.K.)
| | - Chang Hyun Jin
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do 56212, Korea; (A.-R.H.); (B.N.); (Y.-R.K.); (C.H.J.); (J.-B.K.)
| | - Jin-Baek Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do 56212, Korea; (A.-R.H.); (B.N.); (Y.-R.K.); (C.H.J.); (J.-B.K.)
| | - Young-Gyu Eun
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Kyung Hee University, Seoul 02447, Korea; (E.L.); (Y.-G.E.)
| | - Chan-Hun Jung
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Kyung Hee University, Seoul 02447, Korea; (E.L.); (Y.-G.E.)
- Jeonju AgroBio-Materials Institute, Jeonju-si, Jeollabuk-do 54810, Korea
- Correspondence: ; Tel.: +82-63-711-102
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Wang P, Chen X, Wang H, Huang S, Cai C, Yuan J, Zhu G, Xu X, Mei W, Dai H. Four New Picrotoxane-Type Sesquiterpenes From Dendrobium nobile Lindl. Front Chem 2019; 7:812. [PMID: 31850306 PMCID: PMC6895213 DOI: 10.3389/fchem.2019.00812] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/11/2019] [Indexed: 11/13/2022] Open
Abstract
Four picrotoxane-type sesquiterpenes, dendroterpene A–D (1–4), together with four known compounds (5–8), were isolated from the stems of Dendrobium nobile Lindl. Their structures were elucidated by spectroscopic analysis, X-ray diffraction analysis, analysis of the ECD data according to the Klyne's lactone sector rule, and quantum ECD calculation. Compounds 1 and 2 are two new picrotoxane-type sesquiterpenes with a new carbon skeleton containing a formamide group, which may be derived from the previously reported dendrobiumane B skeleton by the C(9)-C(11) carbon bond cleavage. Compounds 3, 5, 6, and 8 exhibited inhibitory activity against α-glycosidase. Compounds 5 and 6 were cytotoxic against SGC-7901, K562, A549, BEL-7402, and Hela cell lines.
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Affiliation(s)
- Pei Wang
- Hainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Xin Chen
- Hainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China.,Nanjing Agricultural University, Nanjing, China
| | - Hao Wang
- Hainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Shengzhuo Huang
- Hainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Caihong Cai
- Hainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Jingzhe Yuan
- Hainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Guoliang Zhu
- East China University of Science and Technology, Shanghai, China
| | - Xinglian Xu
- Nanjing Agricultural University, Nanjing, China
| | - Wenli Mei
- Hainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Haofu Dai
- Hainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
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Li Y, Li Y, Hu X, Pan G, Liu W, Zhang Y, Guo H. Iron-catalyzed synthesis of phenanthrenes via intramolecular hydroarylation of arene-alkynes. JOURNAL OF SAUDI CHEMICAL SOCIETY 2019. [DOI: 10.1016/j.jscs.2019.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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42
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Xu L, Liu K, Duan X. Iron‐Catalyzed Room Temperature Cross‐Couplings of Bromophenols with Aryl Grignard Reagents. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900839] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Li‐Chen Xu
- College of ChemistryBeijing Normal University Beijing 100875 People's Republic of China
| | - Kun‐Ming Liu
- College of ChemistryBeijing Normal University Beijing 100875 People's Republic of China
| | - Xin‐Fang Duan
- College of ChemistryBeijing Normal University Beijing 100875 People's Republic of China
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Wang D, Zhao J, Chen J, Xu Q, Li H. Intramolecular Arylative Ring Opening of Donor‐Acceptor Cyclopropanes in the Presence of Triflic Acid: Synthesis of 9
H
‐Fluorenes and 9,10‐Dihydrophenanthrenes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900523] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Dongyang Wang
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou, Zhejiang 325035 China
| | - Jing Zhao
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou, Zhejiang 325035 China
| | - Jun Chen
- Beijing Institute of Microchemistry No.15 Xinjiangongmen Road, Haidian District Beijing 100091 China
| | - Qing Xu
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou, Zhejiang 325035 China
| | - Huan Li
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou, Zhejiang 325035 China
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Ma RJ, Yang L, Bai X, Li JY, Yuan MY, Wang YQ, Xie Y, Hu JM, Zhou J. Phenolic Constituents with Antioxidative, Tyrosinase Inhibitory and Anti-aging Activities from Dendrobium loddigesii Rolfe. NATURAL PRODUCTS AND BIOPROSPECTING 2019; 9:329-336. [PMID: 31630376 PMCID: PMC6814690 DOI: 10.1007/s13659-019-00219-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 09/15/2019] [Indexed: 05/20/2023]
Abstract
Aqueous ethanol extracts of powdered stems of Dendrobium loddigesii afforded three new phenolics including threo-7-O-ethyl-9-O-(4-hydroxyphenyl)propionyl-guaiacylglycerol (1), (R)-4,5,4'-trihydroxy-3,3',α-trimethoxybibenzyl (2) and (S)-5,5',7-trihydroxy-3',4'-dimethoxyflavanone (3), together with eleven known analogues. Their structures were determined by extensive spectroscopic analysis. To identify natural antioxidants, whitening, and anti-aging agents, the abilities of these phenolics were assessed to scavenge the 1,2-diphenyl-2-picrylhydrazyl (DPPH) radical, their abilities to inhibit tyrosinase production, and their abilities to stimulate collagen production by human dermal fibroblasts-adult (HDFa) assay. It was found that compounds 1, 4-8, 13 and 14 exhibited significant DPPH radical scavenging activities, compound 10 exhibited tyrosinase inhibitory activity (IC50 37.904 μg/mL), and compound 9 showed significant collagen production with an EC50 value of 3.182 μg/mL. These results suggest that phenolic constituents from D. loddigesii may be candidate antioxidants, skin-whitening and/or anti-aging agents.
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Affiliation(s)
- Rui-Jing Ma
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- College of Pharmacy, Guilin Medical University, Guilin, 541004, People's Republic of China
| | - Liu Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- R & D Center of Dr. Plant, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Xue Bai
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Jin-Yu Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Ming-Yan Yuan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- R & D Center of Dr. Plant, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Ya-Qin Wang
- R & D Center of Dr. Plant, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Yong Xie
- R & D Center of Dr. Plant, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Jiang-Miao Hu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
- R & D Center of Dr. Plant, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
| | - Jun Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
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Ma C, Meng CW, Zhou QM, Peng C, Liu F, Zhang JW, Zhou F, Xiong L. New sesquiterpenoids from the stems of Dendrobium nobile and their neuroprotective activities. Fitoterapia 2019; 138:104351. [DOI: 10.1016/j.fitote.2019.104351] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/27/2019] [Accepted: 08/29/2019] [Indexed: 01/31/2023]
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Zhang Y, Zhang Q, Xin W, Liu N, Zhang H. Nudol, a phenanthrene derivative from Dendrobium nobile, induces cell cycle arrest and apoptosis and inhibits migration in osteosarcoma cells. DRUG DESIGN DEVELOPMENT AND THERAPY 2019; 13:2591-2601. [PMID: 31551653 PMCID: PMC6677380 DOI: 10.2147/dddt.s180610] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 06/10/2019] [Indexed: 01/08/2023]
Abstract
Purpose: Osteosarcoma is the most common malignancy of the bone in children and adolescents. There is an urgent need for the development of novel drugs to treat it. Nudol(1), a phenanthrene compound from the traditional Chinese medicine, Dendrobium nobile, exhibited antiproliferative activity against osteosarcoma cells. Therefore, the aim of the present study was to investigate the role and underlying mechanism of nudol(1) as potential chemotherapy for osteosarcoma. Methods: Cell viability was determined by MTT assay. Cell-cycle phase distribution was analyzed by flow cytometry and Western blot. DAPI staining was used for morphology observation. Apoptosis was analysis via flow cytometry. The expression levels of mRNA and protein related to capase-mediated apoptotic pathway were detected by real-time PCR and western blotting. Migration was determined by wound healing assays. Results: Nudol(1) significantly decreased cell viability in several cancer cell lines. Moreover, nudol(1) caused cell cycle arrest at G2/M phase in U2OS cells, and it also induced cell apoptosis through the caspase-dependent pathway. In addition, treatment with nudol(1) suppressed the migration of U2OS cells. Conclusion: The present study, for the first time, demonstrated effects of nudol(1) on OS in vitro and the potential molecular mechanisms. Accordingly, nudol(1) might have the potential for further development as a lead compound against bone tumor.
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Affiliation(s)
- Yuying Zhang
- School of Biological Science and Technology, University of Jinan, Jinan, People's Republic of China
| | - Qianqian Zhang
- School of Biological Science and Technology, University of Jinan, Jinan, People's Republic of China
| | - Wei Xin
- Central Laboratory, Shandong Provincial Hospital, Shandong University, Jinan, People's Republic of China
| | - Na Liu
- School of Biological Science and Technology, University of Jinan, Jinan, People's Republic of China
| | - Hua Zhang
- School of Biological Science and Technology, University of Jinan, Jinan, People's Republic of China
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Nam B, Ryu SM, Lee D, Jung CH, Jin CH, Kim JB, Lee IS, Han AR. Identification of Two New Phenanthrenes from Dendrobii Herba and Their Cytotoxicity towards Human Hypopharynx Squamous Carcinoma Cell (FaDu). Molecules 2019; 24:molecules24122339. [PMID: 31242649 PMCID: PMC6631096 DOI: 10.3390/molecules24122339] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 06/19/2019] [Accepted: 06/25/2019] [Indexed: 02/08/2023] Open
Abstract
Two new phenanthrenes, (1R,2R)-1,7-hydroxy-2,8-methoxy-2,3-dihydrophenanthrene-4(1H)-one (1) and 2,7-dihydroxy-phenanthrene-1,4-dione (2), were isolated from the ethyl acetate-soluble fraction of Dendrobii Herba, together with seven known phenanthrenes (3–9), two bibenzyls (10–12), and a lignan (13). Structures of 1 and 2 were elucidated by analyzing one-dimensional (1D) and two-dimensional (2D)-NMR and High-resolution electrospray ionization mass spectra (HR-ESI-MS) data. The absolute configuration of compound 1 was confirmed by the circular dichroism (CD) spectroscopic method. In cytotoxicity assay using FaDu human hypopharynx squamous carcinoma cell line, compounds 3–6, 8, 10, and 12 showed activities, with IC50 values that ranged from 2.55 to 17.70 μM.
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Affiliation(s)
- Bomi Nam
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do 56212, Korea.
- College of Pharmacy, Chonnam National University, Gwangju 61186, Korea.
| | - Seung Mok Ryu
- Department of Biosystems and Biotechnology, Korea University, Seoul 02841, Korea.
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju-si, Jeollanam-do 58245, Korea.
| | - Dongho Lee
- Department of Biosystems and Biotechnology, Korea University, Seoul 02841, Korea.
| | - Chan-Hun Jung
- Department of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, Seoul 02447, Korea.
| | - Chang Hyun Jin
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do 56212, Korea.
| | - Jin-Baek Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do 56212, Korea.
| | - Ik-Soo Lee
- College of Pharmacy, Chonnam National University, Gwangju 61186, Korea.
| | - Ah-Reum Han
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do 56212, Korea.
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48
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Li Y, Yagi A, Itami K. Synthesis of sterically hindered 4,5-diarylphenanthrenes via acid-catalyzed bisannulation of benzenediacetaldehydes with alkynes. Chem Sci 2019; 10:5470-5475. [PMID: 31293729 PMCID: PMC6552489 DOI: 10.1039/c9sc00334g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 04/16/2019] [Indexed: 11/21/2022] Open
Abstract
The synthesis of sterically hindered phenanthrenes via acid-catalyzed bisannulation reaction is described. Treatment of 1,4-benzenediacetaldehyde with terminal aryl alkynes in the presence of B(C6F5)3 provides 4,5-diarylphenanthrenes in good yields with excellent regioselectivity. The use of internal alkyne substrates enabled the synthesis of sterically hindered 3,4,5,6-tetrasubstituted phenanthrenes displaying augmented backbone helicity. Furthermore, 1,5-disubstituted, 1,8-disubstituted, 1,2,5,6-tetrasubstituted, and 1,2,7,8-tetrasubstituted phenanthrenes can be obtained through the reaction of alkynes with 1,3-benzenediacetaldehyde or 1,2-benzenediacetaldehyde disilyl acetal.
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Affiliation(s)
- Yuanming Li
- Institute of Transformative Bio-Molecules (WPI-ITbM) , Nagoya University , Chikusa , Nagoya 464-8602 , Japan .
| | - Akiko Yagi
- Institute of Transformative Bio-Molecules (WPI-ITbM) , Nagoya University , Chikusa , Nagoya 464-8602 , Japan .
- Graduate School of Science , Nagoya University , Chikusa , Nagoya 464-8602 , Japan
| | - Kenichiro Itami
- Institute of Transformative Bio-Molecules (WPI-ITbM) , Nagoya University , Chikusa , Nagoya 464-8602 , Japan .
- Graduate School of Science , Nagoya University , Chikusa , Nagoya 464-8602 , Japan
- JST-ERATO , Itami Molecular Nanocarbon Project , Nagoya University , Chikusa , Nagoya 464-8602 , Japan
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Zhang M, Linghu L, Zhang J, Nie X, Li X, Guo D, Xiao S. Bibenzyl Derivatives from Dendrobium nobile. CHINESE J ORG CHEM 2019. [DOI: 10.6023/cjoc201903035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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YANG GX, MA GL, LI H, HUANG T, XIONG J, HU JF. Advanced natural products chemistry research in China between 2015 and 2017. Chin J Nat Med 2018; 16:881-906. [DOI: 10.1016/s1875-5364(18)30131-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Indexed: 10/27/2022]
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