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Wei ZF, Li LL, Sun DD, Liu XY, Zhou X, Ma FY, Zhao M, Chen XD, Zhang LJ. Biotransformation of Bioactive Metabolites in Cassiae Semen by Endogenous Enzymes and Probiotics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:5293-5306. [PMID: 38441033 DOI: 10.1021/acs.jafc.3c06864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
The present study evaluated the potential of endogenous enzymes and probiotics in transforming bioactive metabolites to reduce the purgative effect and improve the functional activity of Cassiae Semen and verified and revealed the biotransformation effect of endogenous enzymes. Although probiotics, especially Lactobacillus rhamnosus, exerted the transformation effect, the endogenous enzymes proved to be more effective in transforming the components of Cassiae Semen. After biotransformation by endogenous enzymes for 12 h, the levels of six anthraquinones in Cassiae Semen increased by at least 2.98-fold, and free anthraquinones, total phenolics, and antioxidant activity also showed significant improvement, accompanied by an 82.2% reduction in combined anthraquinones responsible for the purgative effect of Cassiae Semen. Further metabolomic analysis revealed that the biotransformation effect of endogenous enzymes on the bioactive metabolites of Cassiae Semen was complex and diverse, and the biotransformation of quinones and flavonoids was particularly prominent and occurred by three primary mechanisms, hydrolyzation, methylation, and dimerization, might under the action of glycosyl hydrolases, SAM-dependent methyltransferases, and CYP450s. Accordingly, biotransformation by endogenous enzymes emerges as a mild, economical, food safety risk-free, and effective strategy to modify Cassiae Semen into an excellent functional food.
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Affiliation(s)
- Zuo-Fu Wei
- School of Life Science, Shanxi Normal University, Taiyuan 030006, China
| | - Ling-Ling Li
- School of Life Science, Shanxi Normal University, Taiyuan 030006, China
| | - Dan-Dan Sun
- School of Theater and Film and Television, Shanxi Normal University, Taiyuan 030006, China
| | - Xin-Yu Liu
- School of Life Science, Shanxi Normal University, Taiyuan 030006, China
| | - Xueyong Zhou
- School of Life Science, Shanxi Normal University, Taiyuan 030006, China
| | - Fei-Yue Ma
- National Oat Improvement Center, Baicheng Academy of Agricultural Sciences, Baicheng 137000, China
| | - Meng Zhao
- School of Life Science, Shanxi Normal University, Taiyuan 030006, China
| | - Xiao-Dan Chen
- School of Life Science, Shanxi Normal University, Taiyuan 030006, China
| | - Lin-Jing Zhang
- School of Life Science, Shanxi Normal University, Taiyuan 030006, China
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Nguengang RT, Tchegnitegni BT, Ateba JET, Tabekoueng GB, Awantu AF, Bankeu JJK, Chouna JR, Nkenfou CN, Sewald N, Lenta BN. Antibacterial constituents of Rumex nepalensis spreng and its emodin derivatives. Nat Prod Res 2023; 37:3935-3946. [PMID: 36584290 DOI: 10.1080/14786419.2022.2162894] [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: 06/21/2022] [Revised: 12/13/2022] [Accepted: 12/18/2022] [Indexed: 01/01/2023]
Abstract
The CH2Cl2-MeOH (1:1) extract of roots of Rumex nepalensis (Polygonaceae) displayed significant antibacterial activity against five bacterial strains with MICs (62.5-31.2 μg.mL-1). The EtOAc soluble fraction displayed a significant activity against the same strains with MICs (31.2-3.9 μg.mL-1). The purification of the EtOAc fraction yielded one new phenylisobenzofuranone derivative, berquaertiide (1), along with 19 known compounds (2-20). Their structures were elucidated based on the analysis of their NMR and MS data. All the isolated compounds were assessed for their antibacterial activity. Compound 2 was the most active against all the tested strains (15.7 to 1.9 μg.mL-1), while compounds 3-7 displayed good activities on at least one of the tested strains. In addition, seven analogues (21-27) of compound 2 were prepared and further assessed for their antibacterial activity. Compounds 26 and 27 were most active than 2 against Salmonella enterica and Klebsiella pneumoniae with MIC (125 and 15.6 μg.mL-1, respectively).
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Affiliation(s)
- Ruland Tchuinkeu Nguengang
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé 1, Yaoundé, Cameroon
- Department of Chemistry, Higher Teacher Training College, University of Yaoundé 1, Yaoundé, Cameroon
| | | | - Joel Eddy Terence Ateba
- Department of Process Engineering, National Polytechnique School, University of Douala, Douala, Cameroon
| | | | - Angelbert Fusi Awantu
- Department of Chemistry, Faculty of Science, The University of Bamenda, Bambili, Cameroon
| | | | - Jean Rodolphe Chouna
- Department of Chemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Celine Nguefeu Nkenfou
- Department of Biology, Higher Teacher Training College, University of Yaoundé 1, Yaoundé, Cameroon
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, Bielefeld, Germany
| | - Bruno Ndjakou Lenta
- Department of Chemistry, Higher Teacher Training College, University of Yaoundé 1, Yaoundé, Cameroon
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3
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Qun T, Zhou T, Hao J, Wang C, Zhang K, Xu J, Wang X, Zhou W. Antibacterial activities of anthraquinones: structure-activity relationships and action mechanisms. RSC Med Chem 2023; 14:1446-1471. [PMID: 37593578 PMCID: PMC10429894 DOI: 10.1039/d3md00116d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 05/24/2023] [Indexed: 08/19/2023] Open
Abstract
With the increasing prevalence of untreatable infections caused by antibiotic-resistant bacteria, the discovery of new drugs from natural products has become a hot research topic. The antibacterial activity of anthraquinones widely distributed in traditional Chinese medicine has attracted much attention. Herein, the structure and activity relationships (SARs) of anthraquinones as bacteriostatic agents are reviewed and elucidated. The substituents of anthraquinone and its derivatives are closely related to their antibacterial activities. The stronger the polarity of anthraquinone substituents is, the more potent the antibacterial effects appear. The presence of hydroxyl groups is not necessary for the antibacterial activity of hydroxyanthraquinone derivatives. Substitution of di-isopentenyl groups can improve the antibacterial activity of anthraquinone derivatives. The rigid plane structure of anthraquinone lowers its water solubility and results in the reduced activity. Meanwhile, the antibacterial mechanisms of anthraquinone and its analogs are explored, mainly including biofilm formation inhibition, destruction of the cell wall, endotoxin inhibition, inhibition of nucleic acid and protein synthesis, and blockage of energy metabolism and other substances.
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Affiliation(s)
- Tang Qun
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences 200241 Shanghai China
| | - Tiantian Zhou
- School of Chinese Materia Medica, Guangdong Pharmaceutical University 440113 Guangzhou China
| | - Jiongkai Hao
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences 200241 Shanghai China
| | - Chunmei Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences 200241 Shanghai China
- Key laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai Research Institute, Chinese Academy of Agricultural Sciences Shanghai 200241 China
| | - Keyu Zhang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences 200241 Shanghai China
- Key laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai Research Institute, Chinese Academy of Agricultural Sciences Shanghai 200241 China
| | - Jing Xu
- Huanghua Agricultural and Rural Development Bureau Bohai New Area 061100 Hebei China
| | - Xiaoyang Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences 200241 Shanghai China
- Key laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai Research Institute, Chinese Academy of Agricultural Sciences Shanghai 200241 China
| | - Wen Zhou
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences 200241 Shanghai China
- Key laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai Research Institute, Chinese Academy of Agricultural Sciences Shanghai 200241 China
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4
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Köseoğlu Yılmaz P, Kolak U. Development and Validation of a SPE-HPLC Method for Quantification of Rhein, Emodin, Chrysophanol and Physcion in Rhamnus petiolaris Boiss. & Balansa. J Chromatogr Sci 2023:bmad053. [PMID: 37501520 DOI: 10.1093/chromsci/bmad053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 06/19/2023] [Accepted: 07/12/2023] [Indexed: 07/29/2023]
Abstract
Anthraquinones exhibit a significant group of natural and synthetic quinone derivatives because of their biological activities and industrial applications. Rhamnaceae is one of the families known to contain different kinds of anthraquinones. In this study, it was aimed to quantify rhein, emodin, chrysophanol and physcion in fruits of Rhamnus petiolaris Boiss. & Balansa belonging to Rhamnaceae by solid phase extraction and high performance liquid chromatography with ultraviolet detection. The anthraquinones were separated using a C18 analytical column. Gradient elution was performed using a mobile phase consisted of 0.1% o-phosphoric acid solution and methanol. Analytes were detected at 254 nm. Calibration curves were prepared in the range of 0.25-5.00 μg/mL for rhein, chrysophanol, physcion, 1.00-50.00 μg/mL for emodin. Limits of detection and quantification were between 0.07-0.11 and 0.20-0.34 μg/mL, respectively. Relative standard deviations were ≤ 5.78% in repeatability and intermediate precision studies. Accuracy was determined as relative mean error (8.17-12.06%). Extraction was achieved by maceration with acetone and ethanol, followed by hydrophilic-lipophilic balance solid phase extraction. Recoveries were between 96.2 and 109.6%. The developed and validated method was successfully performed to quantify rhein, emodin, chrysophanol and physcion in R. petiolaris fruit extracts. Only physcion was not detected above limit of detection.
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Affiliation(s)
- Pelin Köseoğlu Yılmaz
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, 34116 Istanbul, Türkiye
| | - Ufuk Kolak
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, 34116 Istanbul, Türkiye
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5
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Wang P, Wei J, Hua X, Dong G, Dziedzic K, Wahab AT, Efferth T, Sun W, Ma P. Plant anthraquinones: Classification, distribution, biosynthesis, and regulation. J Cell Physiol 2023. [PMID: 37393608 DOI: 10.1002/jcp.31063] [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: 03/27/2023] [Revised: 05/10/2023] [Accepted: 05/22/2023] [Indexed: 07/04/2023]
Abstract
Anthraquinones are polycyclic compounds with an unsaturated diketone structure (quinoid moiety). As important secondary metabolites of plants, anthraquinones play an important role in the response of many biological processes and environmental factors. Anthraquinones are common in the human diet and have a variety of biological activities including anticancer, antibacterial, and antioxidant activities that reduce disease risk. The biological activity of anthraquinones depends on the substitution pattern of their hydroxyl groups on the anthraquinone ring structure. However, there is still a lack of systematic summary on the distribution, classification, and biosynthesis of plant anthraquinones. Therefore, this paper systematically reviews the research progress of the distribution, classification, biosynthesis, and regulation of plant anthraquinones. Additionally, we discuss future opportunities in anthraquinone research, including biotechnology, therapeutic products, and dietary anthraquinones.
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Affiliation(s)
- Peng Wang
- College of Life Sciences, Northwest A&F University, Yangling, China
| | - Jia Wei
- Jilin Provincial Key Laboratory of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Xin Hua
- College of Life Sciences, Northeast Forestry University, Harbin, China
| | | | - Krzysztof Dziedzic
- Department of Food Technology of Plant Origin, Poznan' University of Life Sciences, Poznań, Poland
| | - Atia-Tul Wahab
- Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Mainz, Germany
| | - Wei Sun
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Pengda Ma
- College of Life Sciences, Northwest A&F University, Yangling, China
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6
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Lee JW, Collins JE, Hulverson MA, Aguila LKT, Kim CM, Wendt KL, Chakrabarti D, Ojo KK, Wood GE, Van Voorhis WC, Cichewicz RH. Appraisal of Fungus-Derived Xanthoquinodins as Broad-Spectrum Anti-Infectives Targeting Phylogenetically Diverse Human Pathogens. JOURNAL OF NATURAL PRODUCTS 2023; 86:1596-1605. [PMID: 37276438 PMCID: PMC10797637 DOI: 10.1021/acs.jnatprod.3c00283] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Xanthoquinodins make up a distinctive class of xanthone-anthraquinone heterodimers reported as secondary metabolites from several fungal species. Through a collaborative multi-institutional screening program, a fungal extract prepared from a Trichocladium sp. was identified that exhibited strong inhibitory effects against several human pathogens (Mycoplasma genitalium, Plasmodium falciparum, Cryptosporidium parvum, and Trichomonas vaginalis). This report focuses on one of the unique samples that exhibited a desirable combination of biological effects: namely, it inhibited all four test pathogens and demonstrated low levels of toxicity toward HepG2 (human liver) cells. Fractionation and purification of the bioactive components and their congeners led to the identification of six new compounds [xanthoquinodins NPDG A1-A5 (1-5) and B1 (6)] as well as several previously reported natural products (7-14). The chemical structures of 1-14 were determined based on interpretation of their 1D and 2D NMR, HRESIMS, and electronic circular dichroism (ECD) data. Biological testing of the purified metabolites revealed that they possessed widely varying levels of inhibitory activity against a panel of human pathogens. Xanthoquinodins A1 (7) and A2 (8) exhibited the most promising broad-spectrum inhibitory effects against M. genitalium (EC50 values: 0.13 and 0.12 μM, respectively), C. parvum (EC50 values: 5.2 and 3.5 μM, respectively), T. vaginalis (EC50 values: 3.9 and 6.8 μM, respectively), and P. falciparum (EC50 values: 0.29 and 0.50 μM, respectively) with no cytotoxicity detected at the highest concentration tested (HepG2 EC50 > 25 μM).
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Affiliation(s)
- Jin Woo Lee
- Natural Products Discovery Group, Institute for Natural Products Applications and Research Technologies, Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Jennifer E Collins
- Division of Molecular Microbiology, Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida 32826, United States
| | - Matthew A Hulverson
- Center for Emerging and Re-emerging Infectious Diseases (CERID), Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, 358061, 750 Republican Street, Seattle, Washington 98109, United States
| | - Laarni Kendra T Aguila
- Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, Seattle, Washington 98104, United States
| | - Caroline M Kim
- Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, Seattle, Washington 98104, United States
| | - Karen L Wendt
- Natural Products Discovery Group, Institute for Natural Products Applications and Research Technologies, Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Debopam Chakrabarti
- Division of Molecular Microbiology, Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida 32826, United States
| | - Kayode K Ojo
- Center for Emerging and Re-emerging Infectious Diseases (CERID), Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, 358061, 750 Republican Street, Seattle, Washington 98109, United States
| | - Gwendolyn E Wood
- Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, Seattle, Washington 98104, United States
| | - Wesley C Van Voorhis
- Center for Emerging and Re-emerging Infectious Diseases (CERID), Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, 358061, 750 Republican Street, Seattle, Washington 98109, United States
| | - Robert H Cichewicz
- Natural Products Discovery Group, Institute for Natural Products Applications and Research Technologies, Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, Oklahoma 73019, United States
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7
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He SJ, Zhu S, Qiu SQ, Ding WY, Cheng JK, Xiang SH, Tan B. Phosphoric Acid-Catalyzed Enantioselective Synthesis of Axially Chiral Anthrone-based Compounds. Angew Chem Int Ed Engl 2023; 62:e202213914. [PMID: 36346195 DOI: 10.1002/anie.202213914] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Indexed: 11/11/2022]
Abstract
Anthrones and analogues are structural cores shared by diverse pharmacologically active natural and synthetic compounds. The sp2 -rich nature imposes inherent obstruction to introduce stereogenic element onto the tricyclic aromatic backbone. In our pursuit to expand the chemical space of axial chirality, a novel type of axially chiral anthrone-derived skeleton was discovered. This work establishes oxime ether as suitable functionality to furnish axial chirality on symmetric anthrone skeletons through stereoselective condensation of the carbonyl entity with long-range chirality control. The enantioenriched anthrones could be elaborated into dibenzo-fused seven-membered N-heterocycles containing well-defined stereogenic center via Beckmann rearrangement with axial-to-point chirality conversion.
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Affiliation(s)
- Shi-Jiang He
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Shuai Zhu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Sheng-Qi Qiu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Wei-Yi Ding
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jun Kee Cheng
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Shao-Hua Xiang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China.,Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Bin Tan
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
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Mahmoodi S, Taleghani A, Akbari R, Mokaber-Esfahani M. Rhamnus pallasii subsp. sintenisii fruit, leaf, bark and root: Phytochemical profiles and biological activities. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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9
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Xing L, Chang Y, Zhang X, Hou X, Han Y, Shah M, Zhu T, Peng J, Zhang G, Che Q, Li D. Dimeric Tetracenomycin Derivatives from a Taklamakan Desert-Derived Streptomyces sp. HDN154193. JOURNAL OF NATURAL PRODUCTS 2022; 85:301-305. [PMID: 34933562 DOI: 10.1021/acs.jnatprod.1c00735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Bitetracenomycin A (1) and its diastereomers [(±)-bitetracenomycin B, (±)-2] were discovered from the cultures of Streptomyces sp. HDN154193. Compounds 1 and (±)-2 were the first tetracenomycin dimers obtained from a natural source with sp3 methine protons at the bridge positions (C-12/12'), which also exhibited broad-spectrum antibacterial activity. The racemate (±)-2 was semisynthesized and separated into enantiomers (+)-2 and (-)-2, and the absolute configurations were determined by specific rotation and ECD data. These metabolites exhibited potent antibacterial activity especially against drug-resistant strains (MRSA and MRCNS) with MIC values ranging from 1.0 to 1.9 μg/mL.
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Affiliation(s)
- Li Xing
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Yimin Chang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Xiaoqian Zhang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Xuewen Hou
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Yaxin Han
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Mudassir Shah
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100125, People's Republic of China
- Department of Pharmacy, Abbottabad University of Science and Technology, Havellian, District Abbottabad 22010, KPK, Pakistan
| | - Tianjiao Zhu
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Jixing Peng
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, People's Republic of China
| | - Guojian Zhang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, People's Republic of China
| | - Qian Che
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Dehai Li
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, People's Republic of China
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Bo R, Wu J, Wu J, Bai L, Ye M, Huang L, Chen H, Rui W. Rapid analysis and identification of dianthrone glycosides in Polygoni Multiflori Caulis based on enrichment of macroporous absorbent resin and UPLC-Q-TOF-MS/MS. PHYTOCHEMICAL ANALYSIS : PCA 2021; 32:1082-1101. [PMID: 33928688 DOI: 10.1002/pca.3050] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 06/12/2023]
Abstract
INTRODUCTION Polygoni Multiflori Caulis (PMC) has been used as a traditional Chinese medicine for a long time in China. However, hepatotoxic events of PMC have been reported in recent years, but the potential toxic compounds have remained unclear. Dianthrones as the secondary plant metabolites were revealed to potential hepatotoxicity in a previous study. However, no reports focused on dianthrones in PMC. OBJECTIVE In the quest for exploring potential hepatotoxic compounds in PMC, the aim of this work was to undertake a comprehensive characterisation of dianthrones in PMC. METHODS A simple and effective macroporous absorbent resin column chromatography method was established in this study to enrich the minor dianthrones from PMC extracts. Exploration and characterisation of dianthrones in PMC was conducted by an ultra-high-performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry (UPLC-QTOF-MS/MS) method and information dependent acquisition (IDA) mode. The aglycones of dianthrone glycosides were further verified by acid hydrolysis method. RESULTS Seventy-two dianthrone glycosides and their five aglycones were discovered and tentatively characterised in PMC for the first time, of which 29 dianthrones were identified as potential new compounds. Dianthrone glycosides could be classified into three types according to their aglycone structures, and their fragmentation pathway rules and diagnosed ions were also summarised comprehensively. CONCLUSION This was the first comprehensive investigation on dianthrones in PMC. The result would help to fully understand the phytochemical constituents and toxic components in PMC, and highlight the need for further toxicological investigations of the dianthrones in PMC due to their potential hepatotoxicity correlation.
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Affiliation(s)
- Rui Bo
- The Centre for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, Guangdong, P. R. China
| | - Jian Wu
- The Centre for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, Guangdong, P. R. China
| | - Jiacai Wu
- The Centre for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, Guangdong, P. R. China
| | - Lisha Bai
- The Centre for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, Guangdong, P. R. China
| | - Mingzhu Ye
- The Centre for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, Guangdong, P. R. China
| | - Li Huang
- The Centre for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, Guangdong, P. R. China
| | - Hongyuan Chen
- Department of Immunology, School of Life Sciences and Biopharmaceuticals Engineering, Guangdong Pharmaceutical University, Guangzhou, Guangdong, P. R. China
- Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangzhou, Guangdong, P. R. China
- Guangdong Engineering & Technology Research Centre of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, Guangdong, P. R. China
- Guangdong Cosmetics Engineering & Technology Research Centre, Guangzhou, Guangdong, P. R. China
| | - Wen Rui
- The Centre for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, Guangdong, P. R. China
- Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangzhou, Guangdong, P. R. China
- Guangdong Engineering & Technology Research Centre of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, Guangdong, P. R. China
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11
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Han YB, Bai W, Ding CX, Liang J, Wu SH, Tan RX. Intertwined Biosynthesis of Skyrin and Rugulosin A Underlies the Formation of Cage-Structured Bisanthraquinones. J Am Chem Soc 2021; 143:14218-14226. [PMID: 34432466 DOI: 10.1021/jacs.1c05421] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Skyrin and rugulosin A are bioactive bisanthraquinones found in many fungi, with the former suggested as a precursor of hypericin (a diversely bioactive phytochemical) and the latter characterized by its distinct cage-like structure. However, their biosynthetic pathways remain mysterious, although they have been characterized for over six decades. Here, we present the rug gene cluster that governs simultaneously the biosynthesis of skyrin and rugulosin A in Talaromyces sp. YE3016, a fungal endophyte residing in Aconitum carmichaeli. A combination of genome sequencing, gene inactivation, heterologous expression, and biotransformation tests allowed the identification of the gene function, biosynthetic precursor, and enzymatic sets involved in their molecular architecture constructions. In particular, skyrin was demonstrated to form from the 5,5'-dimerization of emodin radicals catalyzed by RugG, a cytochrome P450 monooxygenase evidenced to be potentially applicable for the (chemo)enzymatic synthesis of dimeric polyphenols. The fungal aldo-keto reductase RugH was shown to be capable of hijacking the closest skyrin precursor (CSP) immediately after the emodin radical coupling, catalyzing the ketone reduction of CSP to inactivate its tautomerization into skyrin and thus allowing for the spontaneous intramolecular Michael addition to cyclize the ketone-reduced form of CSP into rugulosin A, a representative of diverse cage-structured bisanthraquinones. Collectively, the work updates our understanding of bisanthraquinone biosynthesis and paves the way for synthetic biology accesses to skyrin, rugulosin A, and their siblings.
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Affiliation(s)
- Yun Bin Han
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Wei Bai
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.,State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Chun Xia Ding
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jie Liang
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Shao-Hua Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, and Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, School of Life Sciences, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, China
| | - Ren Xiang Tan
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.,State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University, Nanjing 210023, China
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NİGUSSİE G, MELAK H, ENDALE ANNİSA M. Traditional Medicinal Uses, Phytochemicals, and Pharmacological Activities of Genus Rhamnus: A review. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2021. [DOI: 10.18596/jotcsa.929188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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13
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Yang JB, Song YF, Liu Y, Gao HY, Wang Q, Wang Y, Cheng XL, Zuo TT, Hu XW, Wei F, Jin HT, Wang ST, Ma SC. UHPLC-QQQ-MS/MS assay for the quantification of dianthrones as potential toxic markers of Polygonum multiflorum Thunb: applications for the standardization of traditional Chinese medicines (TCMs) with endogenous toxicity. Chin Med 2021; 16:51. [PMID: 34217329 PMCID: PMC8254911 DOI: 10.1186/s13020-021-00463-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/27/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The raw and processed roots of Polygonum multiflorum Thunb (PM) are commonly used in clinical practice to treat diverse diseases; however, reports of hepatotoxicity induced by Polygoni Multiflori Radix (PMR) and Polygoni Multiflori Radix Praeparata (PMRP) have emerged worldwide. Thus, it is necessary for researchers to explore methods to improve quality standards to ensure their quality and treatment effects. METHODS In the present study, an ultra-high performance liquid chromatography triple quadrupole mass spectrometry (UHPLC-QQQ-MS/MS) method was optimized and validated for the determination of dianthrones in PMR and PMRP using bianthronyl as the internal standard. Chromatographic separation with a gradient mobile phase [A: acetonitrile and B: water containing 0.1% formic acid (v/v)] at a flow rate of 0.25 mL/min was achieved on an Agilent ZORBAX SB-C18 column (2.1 mm × 50 mm, 1.8 μm). The triple quadrupole mass spectrometer (TQMS) was operated in negative ionization mode with multiple reaction monitoring for the quantitative analysis of six dianthrones. Moreover, compounds 5 and 6 were further evaluated for their cytotoxicity in HepaRG cells by CCK-8 assay. RESULTS The UHPLC-QQQ-MS/MS method was first developed to simultaneously determine six dianthrones in PMR and PMRP, namely, polygonumnolides C1-C4 (1-4), trans-emodin dianthrones (5), and cis-emodin dianthrones (6). The contents of 1-6 in 90 batches of PMR were in the ranges of 0.027-19.04, 0.022-13.86, 0.073-15.53, 0.034-23.35, 0.38-83.67 and 0.29-67.00 µg/g, respectively. The contents of 1-6 in 86 batches of commercial PMRP were in the ranges of 0.020-13.03, 0.051-8.94, 0.022-7.23, 0.030-12.75, 0.098-28.54 and 0.14-27.79 µg/g, respectively. Compounds 1-4 were almost completely eliminated after reasonable processing for 24 h and the contents of compounds 5 and 6 significantly decreased. Additionally, compounds 5 and 6 showed inhibitory activity in HepaRG cells with IC50 values of 10.98 and 15.45 μM, respectively. Furthermore, a systematic five-step strategy to standardize TCMs with endogenous toxicity was proposed for the first time, which involved the establishment of determination methods, the identification of potentially toxic markers, the standardization of processing methods, the development of limit standards and a risk-benefit assessment. CONCLUSION The results of the cytotoxicity evaluation of the dianthrones indicated that trans-emodin dianthrones (5) and cis-emodin dianthrones (6) could be selected as toxic markers of PMRP. Taking PMR and PMRP as examples, we hope this study provides insight into the standardization and internationalization of endogenous toxic TCMs, with the main purpose of improving public health by scientifically using TCMs to treat diverse complex diseases in the future.
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Affiliation(s)
- Jian-Bo Yang
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, 100050, China
| | - Yun-Fei Song
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, 100050, China
| | - Yue Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Hui-Yu Gao
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, 100050, China
| | - Qi Wang
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, 100050, China
| | - Ying Wang
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, 100050, China
| | - Xian-Long Cheng
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, 100050, China
| | - Tian-Tian Zuo
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, 100050, China.
| | - Xiao-Wen Hu
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, 100050, China
| | - Feng Wei
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, 100050, China.
| | - Hong-Tao Jin
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Shu-Ting Wang
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Shuang-Cheng Ma
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, 100050, China.
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Nekkaa A, Benaissa A, Mutelet F, Canabady-Rochelle L. Rhamnusalaternus Plant: Extraction of Bioactive Fractions and Evaluation of Their Pharmacological and Phytochemical Properties. Antioxidants (Basel) 2021; 10:300. [PMID: 33669348 PMCID: PMC7920288 DOI: 10.3390/antiox10020300] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/09/2021] [Accepted: 02/11/2021] [Indexed: 12/18/2022] Open
Abstract
Rhamnus alaternus, is a wild-growing shrub, belonging to the Rhamnaceae family. Widely distributed in the Mediterranean basin, R. alaternus is used in the usual medicine in numerous countries, mostly Tunisia, Algeria, Morocco, Spain, France, Italy, and Croatia. A large number of disorders-including dermatological complications, diabetes, hepatitis, and goiter problems-can be treated by the various parts of R. alaternus (i.e., roots, bark, berries, and leaves). Several bioactive compounds were isolated from R. alaternus, including flavonoids, anthocyanins, and anthraquinones, and showed several effects such as antioxidant, antihyperlipidemic, antigenotoxic, antimutagenic, antimicrobial, and antiproliferative. This review summarizes the updated information concerning the botanical description, distribution, extraction processes applied on R. alaternus, and its ethnopharmacology, toxicity, phytochemistry, and pharmacological effects.
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Affiliation(s)
- Amine Nekkaa
- Process Engineering Laboratory for Sustainable Development and Health Products, Department of Process Engineering, National Polytechnic School of Constantine—Malek Bennabi, Constantine 25000, Algeria
- Laboratoire Réactions et Génie des Procédés, CNRS, Université de Lorraine, F-54000 Nancy, France;
| | - Akila Benaissa
- Laboratory of Process Engineering for the Environment (LIPE), Department of Pharmaceutical Engineering, Faculty of Process Engineering, Salah Boubnider University, Constantine 3, Constantine 25000, Algeria;
| | - Fabrice Mutelet
- Laboratoire Réactions et Génie des Procédés, CNRS, Université de Lorraine, F-54000 Nancy, France;
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Lagarde A, Mambu L, Mai PY, Champavier Y, Stigliani JL, Beniddir MA, Millot M. Chlorinated bianthrones from the cyanolichen Nephroma laevigatum. Fitoterapia 2021; 149:104811. [PMID: 33359429 DOI: 10.1016/j.fitote.2020.104811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 11/25/2022]
Abstract
While depsidones, depsides or dibenzofuran-like compounds dominate the chemical composition of lichens, the cyanolichen Nephroma laevigatum affords a diversity of quinoid pigments represented by chlorinated anthraquinones derived from emodin and new bianthrones resulting from the homo- or heterodimerization of monomers. Bianthrones were pointed out from the dichloromethane extract by MS/MS-based molecular networking, then isolated and characterized on the basis of extensive spectroscopic analyzes and GIAO NMR shift calculation followed by CP3 analyzes.
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Affiliation(s)
- Aurélie Lagarde
- Departement de Pharmacognosie, Faculté de Pharmacie, Université de Limoges, 2 rue du Dr Marcland, 87025 Limoges Cedex, France
| | - Lengo Mambu
- Departement de Pharmacognosie, Faculté de Pharmacie, Université de Limoges, 2 rue du Dr Marcland, 87025 Limoges Cedex, France.
| | - Phuong-Y Mai
- Departement de Pharmacognosie, Faculté de Pharmacie, Université de Limoges, 2 rue du Dr Marcland, 87025 Limoges Cedex, France
| | - Yves Champavier
- Plateforme BISCEm, Université de Limoges, 2 Rue du Pr Descottes, 87025 Limoges Cedex, France.
| | - Jean-Luc Stigliani
- Laboratoire de Chimie de Coordination, UPR CNRS 8241, Université de Toulouse UPS, France.
| | - Mehdi A Beniddir
- Équipe "Chimie des Substances Naturelles", Université Paris-Saclay, CNRS, BioCIS, 5, rue J.-B. Clément, 92290 Châtenay-Malabry, France.
| | - Marion Millot
- Departement de Pharmacognosie, Faculté de Pharmacie, Université de Limoges, 2 rue du Dr Marcland, 87025 Limoges Cedex, France.
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Hou SH, Prichina AY, Zhang M, Dong G. Asymmetric Total Syntheses of Di- and Sesquiterpenoids by Catalytic C-C Activation of Cyclopentanones. Angew Chem Int Ed Engl 2020; 59:7848-7856. [PMID: 32086872 PMCID: PMC7219654 DOI: 10.1002/anie.201915821] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Indexed: 11/06/2022]
Abstract
To show the synthetic utility of the catalytic C-C activation of less strained substrates, described here are the collective and concise syntheses of the natural products (-)-microthecaline A, (-)-leubehanol, (+)-pseudopteroxazole, (+)-seco-pseudopteroxazole, pseudopterosin A-F and G-J aglycones, and (+)-heritonin. The key step in these syntheses involve a Rh-catalyzed C-C/C-H activation cascade of 3-arylcyclopentanones, which provides a rapid and enantioselective route to access the polysubstituted tetrahydronaphthalene cores presented in these natural products. Other important features include 1) the direct C-H amination of the tetralone substrate in the synthesis of (-)-microthecaline A, 2) the use of phosphoric acid to enhance efficiency and regioselectivity for problematic cyclopentanone substrates in the C-C activation reactions, and 3) the direct conversion of serrulatane into amphilectane diterpenes by an allylic cyclodehydrogenation coupling.
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Affiliation(s)
- Si-Hua Hou
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
| | | | - Mengxi Zhang
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
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Hou S, Prichina AY, Zhang M, Dong G. Asymmetric Total Syntheses of Di‐ and Sesquiterpenoids by Catalytic C−C Activation of Cyclopentanones. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915821] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Si‐Hua Hou
- Department of Chemistry University of Chicago Chicago IL 60637 USA
| | | | - Mengxi Zhang
- Department of Chemistry University of Chicago Chicago IL 60637 USA
| | - Guangbin Dong
- Department of Chemistry University of Chicago Chicago IL 60637 USA
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Yang J, Yan Z, Ren J, Dai Z, Ma S, Wang A, Su Y. Polygonumnolides A1-B3, minor dianthrone derivatives from the roots of Polygonum multiflorum Thunb. Arch Pharm Res 2018; 41:617-624. [PMID: 28681348 PMCID: PMC6028828 DOI: 10.1007/s12272-016-0816-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 08/10/2016] [Indexed: 11/30/2022]
Abstract
Seven new dianthrone glycosides, named polygonumnolides A1-B3 (1-7), were isolated from the 70 % EtOH extract of the dried roots of Polygonum multiflorum Thunb. using column chromatography and preparative high-performance liquid chromatography. Their structures were determined by 1D and 2D NMR and mass spectroscopy. The isolated compounds were evaluated for their cytotoxic effects against KB tumor cell lines and compounds 1-4 showed moderate cytotoxicity.
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Affiliation(s)
- Jianbo Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China
- Research and Inspection Center of Traditional Chinese Medicine and Ethnomedicine, National Institutes for Food and Drug Control, State Food and Drug Administration, Beijing, 100050, People's Republic of China
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 100102, People's Republic of China
| | - Zheng Yan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China
| | - Jin Ren
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China
| | - Zhong Dai
- Research and Inspection Center of Traditional Chinese Medicine and Ethnomedicine, National Institutes for Food and Drug Control, State Food and Drug Administration, Beijing, 100050, People's Republic of China
| | - Shuangcheng Ma
- Research and Inspection Center of Traditional Chinese Medicine and Ethnomedicine, National Institutes for Food and Drug Control, State Food and Drug Administration, Beijing, 100050, People's Republic of China.
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 100102, People's Republic of China.
| | - Aiguo Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China.
| | - Yalun Su
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China
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Chen G, Wu J, Li N, Guo M. Screening for anti-proliferative and anti-inflammatory components from Rhamnus davurica Pall. using bio-affinity ultrafiltration with multiple drug targets. Anal Bioanal Chem 2018; 410:3587-3595. [DOI: 10.1007/s00216-018-0953-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 01/09/2018] [Accepted: 02/07/2018] [Indexed: 11/29/2022]
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20
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Benamar H, Rarivoson E, Tomassini L, Frezza C, Marouf A, Bennaceur M, Nicoletti M. Phytochemical profiles, antioxidant and anti-acetylcholinesterasic activities of the leaf extracts of Rhamnus lycioides subsp. oleoides (L.) Jahand. & Maire in different solvents. Nat Prod Res 2018; 33:1456-1462. [PMID: 29304683 DOI: 10.1080/14786419.2017.1422182] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
In this work, the extracts obtained with different solvents from the leaves of Rhamnus lycioides subsp. oleoides (L.) Jahand. & Maire were studied for their phytochemical profile and then for their antioxidant and acetylcholinesterase inhibitory activities. The phytochemical profiles of the extracts in n-hexane, dichloromethane, ethyl acetate, methanol, anthraquinone rich and water, showed the presence of different compounds belonging to several classes of natural products such as flavonoids, anthraquinones, saccharides and fatty acids. For what concerns the biological tests, the ethyl acetate, methanol and anthraquinone rich extracts showed the highest activities in both assays due to the high amount of compounds possessing those properties such as flavonoids and anthraquinones. By consequence, these specific extracts of the species may be considered to be potential sources of natural antioxidant and anti-acetylcholinesterasic compounds.
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Affiliation(s)
- Houari Benamar
- a Department of Biology , University of Mostaganem Abdelhamid Ibn Badis , Mostaganem , Algeria.,b Department of Biology , University of Oran 1 Ahmed Benbella , Oran , Algeria
| | - Elonge Rarivoson
- b Department of Biology , University of Oran 1 Ahmed Benbella , Oran , Algeria
| | - Lamberto Tomassini
- c Department of Environmental Biology , University of Rome "La Sapienza" , Rome , Italy
| | - Claudio Frezza
- c Department of Environmental Biology , University of Rome "La Sapienza" , Rome , Italy
| | - Abderrazak Marouf
- b Department of Biology , University of Oran 1 Ahmed Benbella , Oran , Algeria.,d Department of Natural Sciences and Life , Ctr Univ Naama , Naama , Algeria
| | - Malika Bennaceur
- b Department of Biology , University of Oran 1 Ahmed Benbella , Oran , Algeria.,e Department of Biology and Physiology of Organisms , University of Science and Technology Houari Boumediene , Algiers , Algeria
| | - Marcello Nicoletti
- c Department of Environmental Biology , University of Rome "La Sapienza" , Rome , Italy
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Jibril S, Sirat HM, Basar N. A New Stilbene from the Root of Cassia sieberiana D.C. (Fabaceae). Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A new stilbene (1) was isolated from the root of Cassia sieberiana D. C. together with thirteen known compounds, one stilbene (2), three flavonoids (3–5), six anthraquinones (6–11), two triterpenes (12–13), and phytosterol (14). Their structures were identified using spectroscopic techniques and by comparison of the spectral data with those previously reported in the literature. Compounds 10 – 13 were isolated from C. sieberiana for the first time. Compounds 1, 2 and 3 exhibited significant inhibitory activity on 15-lipoxygenase with IC50 values of 2.62, 1.27 and 0.98 μM, respectively. Compounds 2 and 3 showed acetylcholinesterase inhibitory activity with IC50 values of 10.57 and 2.89 μM, respectively.
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Affiliation(s)
- Saidu Jibril
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
- Department of Chemical Sciences, Faculty of Science, Federal University Kashere, P. M. B. 0182, Gombe, Nigeria
| | - Hasnah Mohd Sirat
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Norazah Basar
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
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22
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Fei Y, Wang J, Peng B, Peng J, Hu JH, Zeng ZP, Chen J, Li QE, Gao ZP, Yan XL. Phenolic constituents from Rheum nobile and their antioxidant activity. Nat Prod Res 2017; 31:2842-2849. [PMID: 28301949 DOI: 10.1080/14786419.2017.1303691] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Although the rhizomes of Rheum nobile Hook. f. et Thoms (Polygonaceae) are widely used in Tibetan medicine, no previous investigations regarding the biological activities and rarely chemical constituents of this plant have been reported. As part of an ongoing search for novel bioactive agents, a phytochemical investigation of R. nobile led to the isolation of two new compounds Rheumone B (1) and piceatannol-4'-O-β-D-(6″-O-acetyl)-glucoside (2), together with 15 known compounds by gel filtration over Sephadex LH-20 and preparative HPLC. Their structures were determined by combined spectroscopic methods. Compounds 1-10 were evaluated for their ability to scavenge 2,2-diphenyl-1-picrylhydzyl (DPPH) radical and compounds 7-10 showed relatively strong scavenging abilities with IC50 values from 2.76 μM to 11.80 μM. In conclusion, naphthalene glycosides, stilbene glycosides, flavanols, especially anthraquinones are main chemical constituents of this plant. The ability to scavenge DPPH radical of compound 8 was the highest among compounds 1-10.
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Affiliation(s)
- Ye Fei
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
| | - Juan Wang
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
| | - Bing Peng
- b Beijing Institute of Traditional Chinese Medicine, Beijing Hospital of Traditional Chinese Medicine , Affiliated to Capital Medical University , Beijing , China
| | - Jiangnan Peng
- c Department of Chemistry and Biochemistry , University of North Carolina at Wilmington , Wilmington , NC , USA
| | - Jing-Hong Hu
- d School of Basic Medical Science , Beijing University of Chinese Medicine , Beijing , China
| | - Zu-Ping Zeng
- b Beijing Institute of Traditional Chinese Medicine, Beijing Hospital of Traditional Chinese Medicine , Affiliated to Capital Medical University , Beijing , China
| | - Jing Chen
- e Department of Tibetan medicine , Tibetan Traditional Medical College , Lhasa , China
| | - Qi-En Li
- e Department of Tibetan medicine , Tibetan Traditional Medical College , Lhasa , China
| | - Zeng-Ping Gao
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
| | - Xing-Li Yan
- d School of Basic Medical Science , Beijing University of Chinese Medicine , Beijing , China
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Abstract
Rhamnus caroliniana (Rhamnaceae), or Carolina buckthorn, is a plant commonly found in the southeastern United States that was used in Cherokee traditional medicine. To date, there have been no reports on the phytochemical constituents of R. caroliniana. The bark of R. caroliniana was collected and extracted with chloroform. The crude chloroform extract was subjected to preparative column chromatography on silica gel leading to the isolation of two anthraquinones (chrysophanol and physcion), the bianthrone ararobinol, the dihydroxynaphthalene torachrysone, and the fatty alcohol 1-docosanol. The bark essential oil of R. caroliniana was obtained by hydrodistillation and analyzed by gas chromatography – mass spectrometry. The major bark volatiles were the anthrone chrysarobin (24.2%), the piperidine alkaloid piperine (15.4%), and the dibenzoxepin pacharin (7.5%).
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Affiliation(s)
- Amrutha Bindu Mekala
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
| | - Prabodh Satyal
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
| | - William N. Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
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a-Glucosidase inhibitors extracted from the roots of Polygonum multiflorum Thunb. Fitoterapia 2017; 117:65-70. [DOI: 10.1016/j.fitote.2016.11.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/14/2016] [Accepted: 11/15/2016] [Indexed: 11/17/2022]
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Chen G, Guo M. Screening for Natural Inhibitors of Topoisomerases I from Rhamnus davurica by Affinity Ultrafiltration and High-Performance Liquid Chromatography-Mass Spectrometry. FRONTIERS IN PLANT SCIENCE 2017; 8:1521. [PMID: 28919906 PMCID: PMC5585147 DOI: 10.3389/fpls.2017.01521] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 08/18/2017] [Indexed: 05/17/2023]
Abstract
Topoisomerase I (Topo I) catalyzes topological interconversion of duplex DNA during DNA replication and transcription, and has been deemed as important antineoplastic targets. In this study, the fraction R.d-60 from ethyl acetate extracts of Rhamnus davurica showed higher inhibitory rates against SGC-7901 and HT-29 compared with the R.d-30 fraction in vitro. However, the specific active components of R.d-60 fraction remain elusive. To this end, a method based on bio-affinity ultrafiltration and high performance liquid chromatography/electrospray mass spectrometry (HPLC- ESI-MS/MS) was developed to rapidly screen and identify the Topo I inhibitors in this fraction. The enrichment factors (EFs) were calculated to evaluate the binding affinities between the bioactive constituents and Topo I. As a result, eight ligands were identified and six of which with higher EFs showed more potential antitumor activity. Furthermore, antiproliferative assays in vitro (IC50 values) with two representative candidates (apigenin, quercetin) against SGC-7901, HT-29 and Hep G2 cells were conducted and further validated. Finally, the structure-activity relationships revealed that flavones contain a C2-C3 double bond of C ring exhibited higher bio-affinities to Topo I than those without it. This integrated method combining Topo I ultrafiltration with HPLC-MS/MS proved to be very efficient in rapid screening and identification of potential Topo I inhibitors from the complex extracts of medicinal plants, and could be further explored as a valuable high-throughput screening platform in the early drug discovery stage.
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Affiliation(s)
- Guilin Chen
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of SciencesWuhan, China
- Graduate University of Chinese Academy of SciencesBeijing, China
| | - Mingquan Guo
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of SciencesWuhan, China
- Sino-Africa Joint Research Center, Chinese Academy of SciencesWuhan, China
- *Correspondence: Mingquan Guo,
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Analysis of Flavonoids in Rhamnus davurica and Its Antiproliferative Activities. Molecules 2016; 21:molecules21101275. [PMID: 27669205 PMCID: PMC6273673 DOI: 10.3390/molecules21101275] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 09/18/2016] [Accepted: 09/21/2016] [Indexed: 01/12/2023] Open
Abstract
Rhamnus davurica Pall. (R. davurica) has been used as a traditional medicinal herb for many years in China and abroad. It has been well documented as a rich source of flavonoids with diversified structures, which in turn results in far-ranging biological activities, such as anti-inflammation, anticancer, antibacterial and antioxidant activities. In order to further correlate their anticancer potentials with the phytochemical components, the fingerprint profile of R. davurica herb from Dongbei was firstly investigated using HPLC-ESI-MS/MS. Thirty two peaks were detected and identified, 14 of which were found in R. davurica for the first time in this work. Furthermore, a total of 23 peaks were resolved as flavonoids, which are the major components found in R. davurica. Meanwhile, the antiproliferative activities against human cancer cells of HT-29 and SGC-7901 in vitro exhibited distinct inhibitory effects with IC50 values at 24.96 ± 0.74 and 89.53 ± 4.11 μg/mL, respectively. Finally, the general toxicity against L-O2 cells displayed a much higher IC50 at 229.19 ± 8.52 μg/mL, which suggested very low or no toxicity on hepatic cell viability. The current study revealed for the first time the correlations between the flavonoids of R. davurica with their antiproliferative activities, which indicated that the fingerprint profile of flavonoids and their anticancer activities could provide valuable information on the quality control for herbal medicines and their derived natural remedies from this valuable medicinal plant.
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Yang JB, Li L, Dai Z, Wu Y, Geng XC, Li B, Ma SC, Wang AG, Su YL. Polygonumnolides C1-C4; minor dianthrone glycosides from the roots of Polygonum multiflorum Thunb. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2016; 18:813-822. [PMID: 27139982 DOI: 10.1080/10286020.2016.1171758] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Accepted: 03/22/2016] [Indexed: 06/05/2023]
Abstract
Four new dianthrone glycosides, named polygonumnolides C1-C4 (1-4), were isolated from the dried roots of Polygonum multiflorum Thunb, together with two known emodin dianthrones (5-6). Their hepatotoxicities were evaluated against L-02 cell lines. Compounds 1-4 showed weak hepatotoxicity against L-02 cell lines with IC50 values of 313.05, 205.20, 294.20, and 207.35 μM, respectively.
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Affiliation(s)
- Jian-Bo Yang
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
- b National Institutes for Food and Drug Control, China Food and Drug Administration , Beijing 100050 , China
- c School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China
| | - Li Li
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Zhong Dai
- b National Institutes for Food and Drug Control, China Food and Drug Administration , Beijing 100050 , China
| | - Yu Wu
- b National Institutes for Food and Drug Control, China Food and Drug Administration , Beijing 100050 , China
| | - Xing-Chao Geng
- b National Institutes for Food and Drug Control, China Food and Drug Administration , Beijing 100050 , China
| | - Bo Li
- b National Institutes for Food and Drug Control, China Food and Drug Administration , Beijing 100050 , China
| | - Shuang-Cheng Ma
- b National Institutes for Food and Drug Control, China Food and Drug Administration , Beijing 100050 , China
- c School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China
| | - Ai-Guo Wang
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Ya-Lun Su
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
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Sun N, Xie X, Chen H, Liu Y. Gold-Catalyzed Cyclization of Furan-Ynes bearing a Propargyl Carbonate Group: Intramolecular Diels-Alder Reaction with In Situ Generated Allenes. Chemistry 2016; 22:14175-80. [PMID: 27535212 DOI: 10.1002/chem.201603055] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Indexed: 11/08/2022]
Abstract
Gold-catalyzed cyclization of various furan-ynes with a propargyl carbonate or ester moiety results in the formation of a series of polycyclic aromatic ring systems. The reactions can be rationalized through a tandem gold-catalyzed 3,3-rearrangement of the propargyl carboxylate moiety in furan-yne substrates to form an allenic intermediate, which is followed by an intramolecular Diels-Alder reaction of furan and subsequent ring-opening of the oxa-bridged cycloadduct. It was found that the steric and electronic properties of phosphine ligands on the gold catalyst had a significant impact on the reaction outcome. In the case of 1,5-furan-yne, the cleavage of the oxa-bridge in the cycloadduct with concomitant 1,2-migration of the R(1) group occurs to furnish anthracen-1(2H)-ones bearing a quaternary carbon center. For 1,4-furan-yne, a facile aromatization of the cycloadduct takes place to give 9-oxygenated anthracene derivatives.
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Affiliation(s)
- Ning Sun
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People's Republic of China), Fax: (+86) 021-64166128
| | - Xin Xie
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People's Republic of China), Fax: (+86) 021-64166128
| | - Haoyi Chen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People's Republic of China), Fax: (+86) 021-64166128
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People's Republic of China), Fax: (+86) 021-64166128.
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Antitumor Effects and Mechanism of Novel Emodin Rhamnoside Derivatives against Human Cancer Cells In Vitro. PLoS One 2015; 10:e0144781. [PMID: 26682731 PMCID: PMC4684281 DOI: 10.1371/journal.pone.0144781] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 11/22/2015] [Indexed: 12/31/2022] Open
Abstract
A series of novel anthracene L-rhamnopyranosides compounds were designed and synthesized and their anti-proliferative activities on cancer cell lines were investigated. We found that one derivative S-8 (EM-d-Rha) strongly inhibited cell proliferation of a panel of different human cancer cell lines including A549, HepG2, OVCAR-3, HeLa and K562 and SGC-790 cell lines, and displayed IC50 values in low micro-molar ranges, which are ten folds more effective than emodin. In addition, we found EM-d-Rha (3-(2”,3”-Di-O-acetyl-α-L-rhamnopyranosyl-(1→4)-2’,3’-di-O-acetyl-α-L-rhamnopyranosyl)-emodin) substantially induced cellular apoptosis of HepG2 and OVCAR-3 cells in the early growth stage. Furthermore, EM-d-Rha led to the decrease of mitochondrial transmembrane potential, and up-regulated the express of cells apoptosis factors in a concentration- and time-dependent manner. The results indicated the EM-d-Rha may inhibit the growth and proliferation of HepG2 cells through the pathway of apoptosis induction, and the possible molecular mechanism may due to the activation of intrinsic apoptotic signal pathway.
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Piola F, Bellvert F, Meiffren G, Rouifed S, Walker V, Comte G, Bertrand C. InvasiveFallopia×bohemicainterspecific hybrids display different patterns in secondary metabolites. ECOSCIENCE 2015. [DOI: 10.2980/20-3-3597] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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31
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Boussahel S, Speciale A, Dahamna S, Amar Y, Bonaccorsi I, Cacciola F, Cimino F, Donato P, Ferlazzo G, Harzallah D, Cristani M. Flavonoid profile, antioxidant and cytotoxic activity of different extracts from Algerian Rhamnus alaternus L. bark. Pharmacogn Mag 2015; 11:S102-9. [PMID: 26109754 PMCID: PMC4461948 DOI: 10.4103/0973-1296.157707] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 09/18/2014] [Accepted: 05/27/2015] [Indexed: 01/24/2023] Open
Abstract
Background: Rhamnus alaternus (Rhamnaceae) L. has been traditionally used for treatment of many diseases. Objective: In this study, we determined the antioxidant/free radical scavenger properties, the flavonoid profile and the cytotoxicity of aqueous and methanolic extracts obtained by maceration from Algerian R. alaternus bark, like also of aqueous extract prepared by decoction according to the traditional method. This to estimate the usefulness of the drug traditional preparation and compare it with those made in the laboratory. Materials and Methods: The antioxidant activity of the extracts was evaluated using five different redox-based assays, all involving one redox reaction with the oxidant. High-performance liquid chromatography/diode array detection/electrospray ionization mass spectrometry analysis was used to identify and quantify the flavonoids content. Cytotoxicity on human monocytic leukemia cells (U937) was also carried out. Results: All the extracts tested showed a good antioxidant/free radical scavenger activity and a similar flavonoid fingerprint. However, the methanolic one presented the best antioxidant activity that can be due to the highest flavonoid amount and significantly reduced the proliferation of leukemia cells. The results confirm that the extract prepared by decoction contains efficient antioxidant compounds and this justifies in part the therapeutic and preventive usefulness. Moreover, the methanolic extract exerted excellent cytotoxicity on U937 that could be attributed to kaempferol and rhamnocitrin glycosides.
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Affiliation(s)
- Soulef Boussahel
- Laboratory of Phytotherapy Applied to Chronic Diseases, Department of Biology and Animal Physiology, Faculty of Nature Sciences and Life, University Setif 1, 19000, Algeria
| | - Antonio Speciale
- Department of Drug Sciences and Health Products, University of Messina, Viale Annunziata, 98168 Messina, Messina, Italy
| | - Saliha Dahamna
- Laboratory of Phytotherapy Applied to Chronic Diseases, Department of Biology and Animal Physiology, Faculty of Nature Sciences and Life, University Setif 1, 19000, Algeria
| | - Yacine Amar
- Department of Human Pathology, Laboratory of Immunology and Biotherapy, University of Messina, Messina, Italy
| | - Irene Bonaccorsi
- Department of Human Pathology, Laboratory of Immunology and Biotherapy, University of Messina, Messina, Italy
| | - Francesco Cacciola
- Department of Environmental Science, Territorial, Food and Health Security, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Francesco Cimino
- Department of Drug Sciences and Health Products, University of Messina, Viale Annunziata, 98168 Messina, Messina, Italy
| | - Paola Donato
- Department of Environmental Science, Territorial, Food and Health Security, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Guido Ferlazzo
- Department of Human Pathology, Laboratory of Immunology and Biotherapy, University of Messina, Messina, Italy
| | - Daoud Harzallah
- Laboratory of Phytotherapy Applied to Chronic Diseases, Department of Biology and Animal Physiology, Faculty of Nature Sciences and Life, University Setif 1, 19000, Algeria
| | - Mariateresa Cristani
- Department of Drug Sciences and Health Products, University of Messina, Viale Annunziata, 98168 Messina, Messina, Italy
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Song GP, Li SM, Si HZ, Li YB, Li YS, Fan JH, Liang QQ, He HB, Ye HM, Cui ZN. Synthesis and bioactivity of novel xanthone and thioxanthone l-rhamnopyranosides. RSC Adv 2015. [DOI: 10.1039/c5ra02846a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Xanthone l-rhamnopyranoside derivative 11 was discovered as one of novel topo-I inhibitors.
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33
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Yu J, Zhao H, Liang S, Bao X, Zhu C. A facile and regioselective synthesis of 1-tetralones via silver-catalyzed ring expansion. Org Biomol Chem 2015; 13:7924-7. [DOI: 10.1039/c5ob01222h] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A regioselective synthesis of 1-tetralones via silver-catalyzed ring expansion is described.
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Affiliation(s)
- Jiajia Yu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Huijun Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Shuguang Liang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Xiaoguang Bao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- People's Republic of China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
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34
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Ji NY, Liang XR, Sun RR, Miao FP. A rule to distinguish diastereomeric bianthrones by 1H NMR. RSC Adv 2014. [DOI: 10.1039/c3ra47055e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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35
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Wang J, Gan Y, Li S, Luo T, Zhang Y, Zhao J. Potent P-glycoprotein inhibition of emodin derivative: synthesis and biological evaluation. Med Chem Res 2013. [DOI: 10.1007/s00044-013-0805-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Computational design of a full-length model of HIV-1 integrase: modeling of new inhibitors and comparison of their calculated binding energies with those previously studied. J Mol Model 2013; 19:4349-68. [PMID: 23907552 DOI: 10.1007/s00894-013-1943-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2013] [Accepted: 07/11/2013] [Indexed: 12/28/2022]
Abstract
A full-length model of integrase (IN) of the human immunodeficiency virus type 1 (HIV-1) was constructed based on the distinctly resolved X-ray crystal structures of its three domains, named N-terminal, catalytic core and C-terminal. Thirty-one already known inhibitors with varieties of structural differences as well as nine newly tested ones were docked into the catalytic core. The molecular dynamic (MD) and binding properties of these complexes were obtained by MD calculations. The binding energies calculated by molecular mechanic/Poisson Boltzmann solvation area were significantly correlationed with available IC50. Four inhibitors including two newly designed were also docked into the full-length model and their MD behaviors and binding properties were calculated. It was found that one of the newly designed compounds forms a better complex with HIV-1 IN compared to the rest including raltegravir. MD calculations were performed with AMBER suite of programs using ff99SB force field for the proteins and the general Amber force field for the ligands. In conclusion, the results have produced a promising standpoint not only in the construction of the full-length model but also in development of new drugs against it. However, the role of multimer formation and the involvement of DNAs, and their subsequent effect on the complexation and inhibition, are required to arrive at a conclusive decision.
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37
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Bhouri W, Sghaier MB, Kilani S, Bouhlel I, Dijoux-Franca MG, Ghedira K, Ghedira LC. Evaluation of antioxidant and antigenotoxic activity of two flavonoids from Rhamnus alaternus L. (Rhamnaceae): kaempferol 3-O-β-isorhamninoside and rhamnocitrin 3-O-β-isorhamninoside. Food Chem Toxicol 2011; 49:1167-73. [PMID: 21338653 DOI: 10.1016/j.fct.2011.02.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Revised: 01/27/2011] [Accepted: 02/15/2011] [Indexed: 10/18/2022]
Abstract
The antioxidant activity of kaempferol 3-O-β-isorhamninoside (K3O-ir) and rhamnocitrin 3-O-β-isorhamninoside (R3O-ir), isolated from the leaves of Rhamnus alaternus L., was determined by the ability of each compound to inhibit NBT photoreduction and to scavenge the free radical ABTS(+)(.). Genotoxic and antigenotoxic activities were assessed using the SOS chromotest. At a concentration of 150 μg/assay the two compounds showed the most potent inhibitory activity against superoxide anion by respectively 80.4% and 85.6%. K3O-ir was a very potent radical scavenger with an IC(50) value of 18.75 μg/ml. Moreover, these two compounds exhibit an inhibitory activity against genotoxicity induced by nitrofurantoine and aflatoxine B1 using the SOS chromotest bacterial assay system in the presence of Escherichia coli PQ37 strain. In this study, we have also evaluated correlation between antigenotoxic and antioxidant effects of K3O-ir and R3O-ir. The highest correlation was showed with R3O-ir (r=0.999).
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Affiliation(s)
- Wissem Bhouri
- Laboratoire de Biologie Cellulaire et Moléculaire, Faculté de Medecine Dentaire Monastir, Rue Avicenne, Monastir 5000, Tunisia
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Song G, Liu H, Zhang W, Geng M, Li Y. Synthesis and biological evaluation of cytotoxic activity of novel anthracene L-rhamnopyranosides. Bioorg Med Chem 2010; 18:5183-93. [PMID: 20561793 DOI: 10.1016/j.bmc.2010.05.064] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Revised: 05/21/2010] [Accepted: 05/22/2010] [Indexed: 11/25/2022]
Abstract
A series of anthracene L-rhamnopyranosides were designed and synthesized in a practical way and their cytotoxic activity was examined in vitro. Most compounds exhibited both potent cytotoxicity against several tumor cell lines and high DNA binding capacity. The preliminary results showed that subtle modifications of rhamnosyl moiety in anthracene rhamnosides with acetyl group had a selective toxicity for different tumor cells and the displacement of C-10 carbonyl group in emodin by acetylmethylene group was helpful to improve the inhibitory activity. Lipophilicity of the anthracene glycosides was not a crucial factor for cytotoxicity and most molecules with good cytotoxicity could inhibit the catalytic activity of Top2alpha.
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Affiliation(s)
- Gaopeng Song
- College of Resources and Environment, South China Agricultural University, Guangzhou 510642, China
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39
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Abstract
On the basis of gene disruption and enzyme activity, hypC, an open reading frame in the region between the pksA (aflC) and nor-1 (aflD) genes in the aflatoxin biosynthesis gene cluster, encodes a 17-kDa oxidase that converts norsolorinic acid anthrone to norsolorinic acid.
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40
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Antioxidant and free radical-scavenging properties of three flavonoids isolated from the leaves of Rhamnus alaternus L. (Rhamnaceae) : A structure-activity relationship study. Food Chem 2009. [DOI: 10.1016/j.foodchem.2009.02.043] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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41
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Isaka M, Chinthanom P, Veeranondha S, Supothina S, Jennifer Luangsa-ard J. Novel cyclopropyl diketones and 14-membered macrolides from the soil fungus Hamigera avellanea BCC 17816. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.09.077] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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42
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Du L, Zhu T, Liu H, Fang Y, Zhu W, Gu Q. Cytotoxic polyketides from a marine-derived fungus Aspergillus glaucus. JOURNAL OF NATURAL PRODUCTS 2008; 71:1837-1842. [PMID: 18986198 DOI: 10.1021/np800303t] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Eight new aromatic polyketides (2, 4-6, 8, 14, 16, and 17) together with eight known analogues (3, 7, 9-13, and 15) were isolated from the marine-derived fungus Aspergillus glaucus. The structures and stereochemistry of the new compounds were elucidated by spectroscopic and chemical methods, and their cytotoxicities were evaluated against the HL-60 and A-549 cell lines.
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Affiliation(s)
- Lin Du
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
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SONG GP, WANG P, ZHANG ZH, SHI DK, LI YX. Synthesis of 2′,3′-Di-O-acetylfrangulin A and Prinoidin, Two Novel AnthraceneL-Rhamnopyranosides Isolated fromRhamnus nepalensis. CHINESE J CHEM 2008. [DOI: 10.1002/cjoc.200890310] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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44
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Schenk A, Xu Z, Pfeiffer C, Steinbeck C, Hertweck C. Geminal bismethylation prevents polyketide oxidation and dimerization in the benastatin pathway. Angew Chem Int Ed Engl 2008; 46:7035-8. [PMID: 17691088 DOI: 10.1002/anie.200702033] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Angéla Schenk
- Dept. of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstrasse 11a, 07745 Jena, Germany
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45
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Schenk A, Xu Z, Pfeiffer C, Steinbeck C, Hertweck C. Geminal Bismethylation Prevents Polyketide Oxidation and Dimerization in the Benastatin Pathway. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200702033] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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46
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Rezanka T, Dembitsky VM. The colleflaccinosides, two chiral bianthraquinone glycosides with antitumor activity from the lichen Collema flaccidum collected in Israel and Russia. Nat Prod Res 2006; 20:969-80. [PMID: 16854728 DOI: 10.1080/14786410500218674] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Colleflaccinosides A and B, two chiral bianthraquinone glycosides from the two geographical varieties of lichen Collema flaccidum collected in Russia and Israel have been isolated as new natural products. Their structures were elucidated using UV, CD, IR, MS, 1D and 2D NMR spectral data, and chemical degradation. The colleflaccinosides B had significant antitumor activity in the crown gall tumor inhibition test.
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Affiliation(s)
- Tomás Rezanka
- Institute of Microbiology, Czech Academy of Sciences, Vídenská 1083, 142 20 Prague, Czech Republic.
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47
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Tan JH, Zhang QX, Huang ZS, Chen Y, Wang XD, Gu LQ, Wu JY. Synthesis, DNA binding and cytotoxicity of new pyrazole emodin derivatives. Eur J Med Chem 2006; 41:1041-7. [PMID: 16716458 DOI: 10.1016/j.ejmech.2006.04.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 04/17/2006] [Accepted: 04/20/2006] [Indexed: 11/16/2022]
Abstract
A series of new anthrapyrazoles were derived from emodin by attaching various cationic alkyl amino side chains onto a pyrazole ring which had been incorporated into the anthraquinone chromophore. Compared with emodin, the derivatives had significantly higher DNA binding affinity based on interaction with calf thymus DNA, and much more potent cytotoxicity against different tumor cells. The derivatives with a mono-cationic alkyl side chain exhibited the highest DNA binding affinity and cytotoxicity.
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Affiliation(s)
- J-H Tan
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510080, China
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