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Yang X, Yu Y, Wu P, Liu J, Li Y, Tao L, Tan R, Hao X, Yuan C, Yi P. Phenolic and bisamide derivatives from Aglaia odorata and their biological activities. Nat Prod Res 2023; 37:3923-3934. [PMID: 36580570 DOI: 10.1080/14786419.2022.2162514] [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: 09/23/2022] [Revised: 12/07/2022] [Accepted: 12/16/2022] [Indexed: 12/31/2022]
Abstract
Three new compounds (1-3), including two bisamide derivatives (1 and 2) and a lignin (3), along with 15 known compounds were isolated from Aglaia odorata. Compound 2 was a pair of enantiomers and successfully resolved into the anticipated enantiomers. Their structures were elucidated by extensive spectroscopic analysis, electronic circular dichroism (ECD) calculations, and X-ray crystallography. Three compounds showed excellent inhibitory activities on α-glucosidase with IC50 values ranging from 54.48 to 240.88 μM, better than that of the positive control (acarbose, IC50 = 590.94 μM). Moreover, compounds 3, 13, and 15 presented moderate inhibitory activities against butyrylcholinesterase. Compound 17 exhibited potent PTP1B inhibitory activity with an IC50 value of 179.45 μM. Representative active compounds were performed for the molecular docking study. Herein, we described the isolation, structure elucidation, the inhibitory effects on three enzymes, and molecular docking of the isolates from the title plant.
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Affiliation(s)
- Xiaomeng Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang, PR China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, PR China
| | - Yan Yu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang, PR China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, PR China
| | - Panfeng Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang, PR China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, PR China
| | - Juan Liu
- Graduate School, Guizhou Medical University, Guiyang, PR China
| | - Yanan Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang, PR China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, PR China
| | - Linlan Tao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang, PR China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, PR China
| | - Rong Tan
- Pharmacy Affiliated Hospital of Guizhou Medical University, Guiyang, PR China
| | - Xiaojiang Hao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang, PR China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, PR China
| | - Chunmao Yuan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang, PR China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, PR China
| | - Ping Yi
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang, PR China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, PR China
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Wu J, Fu YS, Lin K, Huang X, Chen YJ, Lai D, Kang N, Huang L, Weng CF. A narrative review: The pharmaceutical evolution of phenolic syringaldehyde. Biomed Pharmacother 2022; 153:113339. [PMID: 35780614 DOI: 10.1016/j.biopha.2022.113339] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/15/2022] [Accepted: 06/24/2022] [Indexed: 12/11/2022] Open
Abstract
To better understand the pharmacological characters of syringaldehyde (SA), which is a key-odorant compound of whisky and brandy, this review article is the first to compile the published literature for molecular docking that were subsequently validated by in vitro and in vivo assays to predict and develop insights into the medicinal properties of SA in terms of anti-oxidation, anti-inflammation, and anti-diabetes. The molecular docking displayed significantly binding affinity for SA towards tumor necrosis factor-α, interleukin-6, and antioxidant enzymes when inflammation from myocardial infarction and spinal cord ischemia. Moreover, SA nicely docked with dipeptidyl peptidase-IV, glucagon-like peptide 1 receptor, peroxisome proliferator-activated receptor, acetylcholine M2 receptor, and acetylcholinesterase in anti-diabetes investigations. These are associated with (1) an increase glucose utilization and insulin sensitivity to an anti-hyperglycemic effect; and (2) to potentiate intestinal contractility to abolish the α-amylase reaction when concurrently reducing retention time and glucose absorption of the intestinal tract to achieve a glucose-lowering effect. In silico screening of multi-targets concomitantly with preclinical tests could provide a potential exploration for new indications for drug discovery and development.
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Affiliation(s)
- Jingyi Wu
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Yaw-Syan Fu
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China; Institute of Respiratory Disease, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Kaihuang Lin
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Xin Huang
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Yi-Jing Chen
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Dong Lai
- Medical Research Center, the Second Affiliated Hospital of Xiamen Medical College, Xiamen 361021, Fujian, China.
| | - Ning Kang
- Department of Otorhinolaryngology, the Second Affiliated Hospital of Xiamen Medical College, Xiamen 361021, Fujian, China.
| | - Liyue Huang
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Ching-Feng Weng
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China; Institute of Respiratory Disease, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
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Li YX, Zhu JP, Zhang ZJ, Qu YS. Preparation of Syringaldehyde from Lignin by Catalytic Oxidation of Perovskite-Type Oxides. ACS OMEGA 2020; 5:2107-2113. [PMID: 32064371 PMCID: PMC7016912 DOI: 10.1021/acsomega.9b02379] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 01/16/2020] [Indexed: 05/08/2023]
Abstract
The influence of different reaction conditions on the yield of syringaldehyde was studied by using perovskite oxide as the catalyst. The optimal reaction conditions are as follows: 0.60 g of dealkali lignin, 0.60 g of 5 wt % theta ring-loaded LaFe0.2Cu0.8O3 catalyst, 30 mL of 1.0 mol/L NaOH solution, 160 °C reaction temperature, 0.80 MPa O2 pressure, and 2.5 h reaction time. Under these conditions, the highest syringaldehyde yield was 10.00%. The recycling performance of the catalyst was studied. It was found by XRD analysis that the catalyst maintained high catalytic activity after four times of use.
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Affiliation(s)
- Ying-xia Li
- Beijing
University of Chemical Technology, Beijing 100029, China
| | - Jun-peng Zhu
- Beijing
University of Chemical Technology, Beijing 100029, China
- State
Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhong-jun Zhang
- Beijing
University of Chemical Technology, Beijing 100029, China
- State
Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Yong-Shui Qu
- State
Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- E-mail: . Tel/Fax: +86 10 82544852
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Koubek EJ, Weissenrieder JS, Neighbors JD, Hohl RJ. Schweinfurthins: Lipid Modulators with Promising Anticancer Activity. Lipids 2018; 53:767-784. [DOI: 10.1002/lipd.12088] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 08/30/2018] [Accepted: 08/31/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Emily J. Koubek
- Departments of Medicine and Pharmacology, The Pennsylvania State Cancer Institute; The Pennsylvania State College of Medicine, 500 University Drive Hershey; Hershey PA 17033 USA
| | - Jillian S. Weissenrieder
- Departments of Medicine and Pharmacology; The Pennsylvania State College of Medicine, 500 University Drive Hershey; Hershey PA 17033 USA
| | - Jeffrey D. Neighbors
- Departments of Pharmacology and Medicine; The Pennsylvania State College of Medicine, 500 University Drive Hershey; Hershey PA 17033 USA
| | - Raymond J. Hohl
- Departments of Medicine and Pharmacology, The Pennsylvania State Cancer Institute; The Pennsylvania State College of Medicine, 500 University Drive Hershey; Hershey PA 17033 USA
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Murray V, Chen JK, Chung LH. The Interaction of the Metallo-Glycopeptide Anti-Tumour Drug Bleomycin with DNA. Int J Mol Sci 2018; 19:E1372. [PMID: 29734689 PMCID: PMC5983701 DOI: 10.3390/ijms19051372] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 04/24/2018] [Accepted: 04/24/2018] [Indexed: 11/17/2022] Open
Abstract
The cancer chemotherapeutic drug, bleomycin, is clinically used to treat several neoplasms including testicular and ovarian cancers. Bleomycin is a metallo-glycopeptide antibiotic that requires a transition metal ion, usually Fe(II), for activity. In this review, the properties of bleomycin are examined, especially the interaction of bleomycin with DNA. A Fe(II)-bleomycin complex is capable of DNA cleavage and this process is thought to be the major determinant for the cytotoxicity of bleomycin. The DNA sequence specificity of bleomycin cleavage is found to at 5′-GT* and 5′-GC* dinucleotides (where * indicates the cleaved nucleotide). Using next-generation DNA sequencing, over 200 million double-strand breaks were analysed, and an expanded bleomycin sequence specificity was found to be 5′-RTGT*AY (where R is G or A and Y is T or C) in cellular DNA and 5′-TGT*AT in purified DNA. The different environment of cellular DNA compared to purified DNA was proposed to be responsible for the difference. A number of bleomycin analogues have been examined and their interaction with DNA is also discussed. In particular, the production of bleomycin analogues via genetic manipulation of the modular non-ribosomal peptide synthetases and polyketide synthases in the bleomycin gene cluster is reviewed. The prospects for the synthesis of bleomycin analogues with increased effectiveness as cancer chemotherapeutic agents is also explored.
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Affiliation(s)
- Vincent Murray
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia.
| | - Jon K Chen
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia.
| | - Long H Chung
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia.
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Chung LH, Murray V. The mitochondrial DNA sequence specificity of the anti-tumour drug bleomycin using end-labeled DNA and capillary electrophoresis and a comparison with genome-wide DNA sequencing. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1008:87-97. [DOI: 10.1016/j.jchromb.2015.11.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 11/17/2015] [Accepted: 11/17/2015] [Indexed: 11/30/2022]
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Kim KH, Moon E, Kim SY, Choi SU, Lee KR. Tiliabisflavan A, a New Flavan-3-ol Dimer from Tilia amurensiswith Cytotoxic and Anti-Inflammatory Effects. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ki Hyun Kim
- Natural Products Laboratory, School of Pharmacy; Sungkyunkwan University; Gyeonggi-do 440-746 Korea
| | - Eunjung Moon
- College of Pharmacy; Gachon University; Incheon 406-799 Korea
| | - Sun Yeou Kim
- College of Pharmacy; Gachon University; Incheon 406-799 Korea
| | - Sang Un Choi
- Korea Research Institute of Chemical Technology; Daejeon 305-600 Korea
| | - Kang Ro Lee
- Natural Products Laboratory, School of Pharmacy; Sungkyunkwan University; Gyeonggi-do 440-746 Korea
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8
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Andreoli M, Persico M, Kumar A, Orteca N, Kumar V, Pepe A, Mahalingam S, Alegria AE, Petrella L, Sevciunaite L, Camperchioli A, Mariani M, Di Dato A, Novellino E, Scambia G, Malhotra SV, Ferlini C, Fattorusso C. Identification of the first inhibitor of the GBP1:PIM1 interaction. Implications for the development of a new class of anticancer agents against paclitaxel resistant cancer cells. J Med Chem 2014; 57:7916-32. [PMID: 25211704 PMCID: PMC4191604 DOI: 10.1021/jm5009902] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Class III β-tubulin plays a prominent role in the development of drug resistance to paclitaxel by allowing the incorporation of the GBP1 GTPase into microtubules. Once in the cytoskeleton, GBP1 binds to prosurvival kinases such as PIM1 and initiates a signaling pathway that induces resistance to paclitaxel. Therefore, the inhibition of the GBP1:PIM1 interaction could potentially revert resistance to paclitaxel. A panel of 44 4-azapodophyllotoxin derivatives was screened in the NCI-60 cell panel. The result is that 31 are active and the comparative analysis demonstrated specific activity in paclitaxel-resistant cells. Using surface plasmon resonance, we were able to prove that NSC756093 is a potent in vitro inhibitor of the GBP1:PIM1 interaction and that this property is maintained in vivo in ovarian cancer cells resistant to paclitaxel. Through bioinformatics, molecular modeling, and mutagenesis studies, we identified the putative NSC756093 binding site at the interface between the helical and the LG domain of GBP1. According to our results by binding to this site, the NSC756093 compound is able to stabilize a conformation of GBP1 not suitable for binding to PIM1.
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Affiliation(s)
- Mirko Andreoli
- Danbury Hospital Research Institute , 24 Hospital Avenue, Danbury, Connecticut 06810, United States
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9
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Okokon JE, Okokon PJ, Dar Farooq A, Choudhary MI. Anti-inflammatory and antinociceptive activities of Homalium letestui. PHARMACEUTICAL BIOLOGY 2013; 51:1459-1466. [PMID: 23862982 DOI: 10.3109/13880209.2013.799707] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
CONTEXT Homalium letestui Pellegr (Flacourtiaceae) is used in various decoctions traditionally by the Ibibios of the Niger Delta of Nigeria to treat stomach ulcer, malaria and other inflammatory diseases, as well as an aphrodisiac. OBJECTIVE To investigate the anti-inflammatory and antinociceptive activities of the stem extract of the plant. MATERIALS AND METHODS The ethanol stem extract (500, 750, 1000 mg/kg, i.p.) of H. letestui was investigated for anti-inflammatory activity using carrageenan, egg albumin-induced and xylene-induced ear edema models and analgesic activity using acetic acid-induced writhing, formalin-induced paw licking and thermal-induced pain models. The ethanol extract was administered to the animals orally, 30 min to 1 h depending on the model, before induction of inflammation/pain. The LD50 was also determined. GC-MS analysis of dichloromethane fraction was carried out. RESULTS The extract caused a significant (p < 0.05-0.001) reduction of inflammation induced by carrageenan (8.3-70.0%), egg albumin (10.0-71.42%) and xylene (39.39-84.84%). The extract also reduced significantly (p < 0.05-0.001) pain induced by acetic acid (44.22-73.65%), formalin (55.89-79.21%) and hot plate (93.0-214.5%). The LD50 was determined to be 4.38 ± 35.72 g/kg. DISCUSSION AND CONCLUSION The results of this study suggest that the ethanol stem extract of H. letestui possesses anti-inflammatory and analgesic properties which may in part be mediated through the chemical constituents of the plant as revealed by the GC-MS.
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Affiliation(s)
- Jude E Okokon
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Uyo , Uyo , Nigeria and
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Lee SS, Monnappa AK, Mitchell RJ. Biological activities of lignin hydrolysate-related compounds. BMB Rep 2012; 45:265-74. [DOI: 10.5483/bmbrep.2012.45.5.265] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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11
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Wang F, Qu M, Chen F, Li L, Shi M. An unusual Me3SiI-promoted [4+2] annulation and reduction: an efficient approach to construct 4H-benzopyrans. Chem Commun (Camb) 2012; 48:437-9. [DOI: 10.1039/c1cc16028a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Fluorescent schweinfurthin B and F analogs with anti-proliferative activity. Bioorg Med Chem 2010; 18:6734-41. [PMID: 20724169 DOI: 10.1016/j.bmc.2010.07.056] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Revised: 07/21/2010] [Accepted: 07/23/2010] [Indexed: 11/23/2022]
Abstract
The natural tetracyclic schweinfurthins are potent and selective inhibitors of cell growth in the National Cancer Institute's 60 cell-line screen. At this time, the mechanism or cellular target that underlies this activity has not yet been identified, and efforts to illuminate the schweinfurthins' mode of action would benefit from development of potent fluorescent analogs that could be readily visualized within cells. This report describes the synthesis of fluorescent analogs of schweinfurthins B and F, and demonstrates that these compounds retain the potent and differentially toxic activities against select human cancer cells that are characteristic of the natural schweinfurthins. In addition, the synthesis of control compounds that maintain parallel fluorescent properties, but lack the potent activity of the natural schweinfurthin is described. Use of fluorescence microscopy shows differences between the localization of the active and relatively inactive schweinfurthin analogs. The active compounds localize in peripheral puncta which may identify the site(s) of activity.
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Moeller PDR, Beauchesne KR, Huncik KM, Davis WC, Christopher SJ, Riggs-Gelasco P, Gelasco AK. Metal complexes and free radical toxins produced by Pfiesteria piscicida. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2007; 41:1166-72. [PMID: 17598275 DOI: 10.1021/es0617993] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Metal-containing organic toxins produced by Pfiesteria piscicida were characterized, for the first time, by corroborating data obtained from five distinct instrumental methods: nuclear magnetic resonance spectroscopy (NMR), inductively coupled plasma mass spectrometry (ICP-MS), liquid chromatography particle beam glow discharge mass spectrometry (LC/PB-G DMS), electron paramagnetic resonance spectroscopy (EPR), and X-ray absorption spectroscopy (XAS). The high toxicity of the metal-containing toxins is due to metal-mediated free radical production. This mode of activity explains the toxicity of Pfiesteria, as well as previously reported difficulty in observing the molecular target, due to the ephemeral nature of radical species. The toxins are highly labile in purified form, maintaining activity for only 2-5 days before all activity is lost. The multiple toxin congeners in active extracts are also susceptible to decomposition in the presence of white light, pH variations, and prolonged heat. These findings represent the first formal isolation and characterization of a radical forming toxic organic-ligated metal complex isolated from estuarine/marine dinoflagellates. These findings add to an increased understanding regarding the active role of metals interacting with biological systems in the estuarine environment, as well as their links and implications to human health.
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Affiliation(s)
- Peter D R Moeller
- Center for Coastal Environmental Health and Biomolecular Research, National Oceanic and Atmospheric Administration National Ocean Service, Hollings Marine Laboratory, Charleston, South Carolina 29412, USA.
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15
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Chen YG, Wu ZC, Gui SH, Lv YP, Liao XR, Halaweish F. Lignans from Schisandra hernyi with DNA cleaving activity and cytotoxic effect on leukemia and Hela cells in vitro. Fitoterapia 2005; 76:370-3. [PMID: 15893434 DOI: 10.1016/j.fitote.2005.03.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2003] [Accepted: 03/08/2005] [Indexed: 11/25/2022]
Abstract
The lignans, gomisin G (1), schisantherin A (2), benzoylgomisin Q (3) and isoanwulignan (4) were isolated from the stems of Schisandra henryi. Compound 1 showed moderate DNA strand scission activity and significant cytotoxic effect on leukemia and Hela cells in vitro. Compound 1 represents a new type of DNA strand scission agent.
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Affiliation(s)
- Ye-Gao Chen
- Department of Chemistry, Yunnan Normal University, Kunming, Yunnan 650092, China.
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16
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Ma J, Jones SH, Hecht SM. Phenolic acid amides: a new type of DNA strand scission agent from Piper caninum. Bioorg Med Chem 2004; 12:3885-9. [PMID: 15210155 DOI: 10.1016/j.bmc.2004.05.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2004] [Accepted: 05/01/2004] [Indexed: 10/26/2022]
Abstract
In a survey of the active components of crude plant extracts for their ability to cleave DNA, a crude extract prepared from Piper caninum was found to induce the relaxation of supercoiled pBR322 plasmid DNA in the presence of Cu(2+). Bioassay-guided fractionation was carried out on this extract, guided by an in vitro DNA strand scission assay. Three active principles were isolated and identified as N-cis-feruloyl tyramine (1),N-trans-feruloyl tyramine (2), and 1-cinnamoylpyrrolidine (3). Compounds 1-3 represent a structurally new type of DNA strand scission agent.
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Affiliation(s)
- Ji Ma
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22901, USA
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Subramanian M, Shadakshari U, Chattopadhyay S. A mechanistic study on the nuclease activities of some hydroxystilbenes. Bioorg Med Chem 2004; 12:1231-7. [PMID: 14980635 DOI: 10.1016/j.bmc.2003.10.062] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2003] [Accepted: 10/29/2003] [Indexed: 11/16/2022]
Abstract
The nuclease activities of a series of hydroxystilbeneoids have been studied so as to establish a structure-activity correlation and deduce the mechanistic pathway of the process. Although the test compounds could nick plasmid DNA, only three of these including resveratrol produced double strand breaks in DNA. Amongst these new stilbenes, compound 2e containing a partially methylated catechol and a C-4 hydroxy moieties was equally potent as resveratrol. The activities of the unprotected catechol-derivatives were less than those of the resorcinol-derivatives, which were, however, compensated by partial methylation of the former. The presence of Cu(2+) and O(2) and the participation of a Cu(+)-oxo intermediate were obligatory in the process which did not require addition of any external reducing agent. Overall, the differential nuclease activities of the compounds could be explained primarily with their superoxide anion generation abilities, and to a lesser extent with their DNA binding and Cu(2+) reducing capacities. The amount of superoxide anion produced by the compounds depended strongly on their Cu(+)-complexation abilities, which again, was decided by the pattern and nature of the oxygenated substituents in the aromatic rings.
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Affiliation(s)
- Mahesh Subramanian
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
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Xu YM, Deng JZ, Ma J, Chen SN, Marshall R, Jones SH, Johnson RK, Hecht SM. DNA damaging activity of ellagic acid derivatives. Bioorg Med Chem 2003; 11:1593-6. [PMID: 12628683 DOI: 10.1016/s0968-0896(02)00452-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A strain of yeast rendered repair deficient by the conditional expression of the RAD52 locus was used to search for natural products capable of damaging DNA. Four ellagic acid derivatives, namely 3,3'-dimethyl-4'-O-beta-D-glucopyranosyl ellagic acid (1), 3,3',4-trimethyl-4'-O-beta-D-glucopyranosyl ellagic acid (2), 3'-methyl-3,4-O,O-methylidene ellagic acid (3) and 3'-methyl-3,4-O,O-methylidene-4'-O-beta-D-glucopyranosyl ellagic acid (4), were identified by this assay as DNA damaging natural principles from several plants, including Alangium javanicum, Anisophyllea apetala, Crypteronia paniculata, Mouririi sp. and Scholtzia parviflora. Although none of the isolated principles mediated frank strand scission of DNA in vitro, all of them potently inhibited the growth of yeast in the absence of expression of RAD52.
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Affiliation(s)
- Ya-ming Xu
- Departments of Chemistry and Biology, University of Virginia, Charlottesville, VA 22901, USA.
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Melvin MS, Wooton KE, Rich CC, Saluta GR, Kucera GL, Lindquist N, Manderville RA. Copper-nuclease efficiency correlates with cytotoxicity for the 4-methoxypyrrolic natural products. J Inorg Biochem 2001; 87:129-35. [PMID: 11730894 DOI: 10.1016/s0162-0134(01)00338-5] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The DNA-targeting activities of the 4-methoxypyrrolic natural products, that include prodigiosin (1), tambjamine E (2), and the blue pigment (3), have been compared using fluorescence spectroscopy to study DNA binding and agarose gel electrophoresis to assess their ability to facilitate oxidative copper-promoted DNA cleavage. Fluorescence emission titration of 3 with calf-thymus DNA (CT-DNA) shows that the natural product occupies a site size (n) of ca. two base pairs and possesses an affinity constant (K) of approximately 6x10(5) x M(-1). Similar to prodigiosin (1), the blue pigment 3 was found to facilitate oxidative double-strand DNA (dsDNA) cleavage without the aid of an external reducing agent. Quantitation of ds- (n2) and ss- (n1) breaks provided n1:n2 ratios of approximately 8-12, which were significantly greater than the number expected from the accumulation of ss-breaks (approximately 120). This was contrasted by the nicking activity of tambjamine E (2), which only generates ss-breaks in the presence of copper. The superior copper-nuclease activity of 1 and 3 also correlated with their superior anticancer properties against leukemia (HL-60) cells. These results are discussed with respect to the mode of cytotoxicity by the 4-methoxypyrrolic natural products.
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Affiliation(s)
- M S Melvin
- Department of Chemistry, Wake Forest University, Winston-Salem, NC 27109-7486, USA
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