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Liu X, Shen J, Zhu K. Antibacterial activities of plant-derived xanthones. RSC Med Chem 2022; 13:107-116. [PMID: 35308024 PMCID: PMC8864485 DOI: 10.1039/d1md00351h] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 12/20/2021] [Indexed: 07/26/2023] Open
Abstract
The increasing threat to global health posed by antibiotic resistance remains a serious concern. This troublesome scenario has steered a need for the discovery and evaluation of novel antibacterial agents. Natural products are the main sources of antimicrobials used in clinical practice, serving as a rich reservoir for the discovery of new antibiotics. Pharmaceutical phenolics especially xanthones widely exist in the plant kingdom, and are important plant metabolites. They possess versatile biological activities, including antiviral, antibacterial, neurotrophic, and anticancer. In the present study, we focus on the antibacterial activities of phytoxanthones and summarize their structures and sources, categories and drug-likeness evaluations, and antibacterial activities. A total of 226 different plant xanthones are identified through the NETs screening, and most of them are distributed in Clusiaceae family. These phytoxanthones are divided into four groups according to the intrinsic structural properties, including the most common simple xanthones and the majority of biprenylated ones. Moreover, their physicochemical parameters are calculated and the structure-activity relationships are discussed as well. These results indicate that the biprenylated xanthone derivatives may be promising antibacterial candidates and that the natural products of plants may be a poorly understood repository for the discovery of novel antibacterial agents.
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Affiliation(s)
- Xiaojia Liu
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University Beijing 00193 China
| | - Jianzhong Shen
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University Beijing 00193 China
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety and Beijing Laboratory for Food Quality and Safety, China Agricultural University Beijing 100193 China
| | - Kui Zhu
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University Beijing 00193 China
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety and Beijing Laboratory for Food Quality and Safety, China Agricultural University Beijing 100193 China
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2
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Mazur G, Skiba-Kurek I, Karczewska E, Pańczyk-Straszak K, Jaworska J, Waszkielewicz AM. Design, synthesis and activity against Staphylococcus epidermidis of 5-chloro-2- or 5-chloro-4-methyl-9H-xanthen-9-one and some of its derivatives. Chem Biol Drug Des 2020; 97:674-685. [PMID: 33031630 DOI: 10.1111/cbdd.13803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 09/26/2020] [Indexed: 11/30/2022]
Abstract
Ten new xanthone derivatives have been designed and synthesized for their potential antibacterial activity. All compounds have been screened against Staphylococcus epidermidis strains ATCC 12228 and clinical K/12/8915. The highest antibacterial activity was observed for compound 3: 5-chloro-2-((4-(2-hydroxyethyl)piperazin-1-yl)methyl)-9H-xanthen-9-one dihydrochloride, exhibiting MIC of 0.8 µg/ml against ATCC 12228 strain, compared to linezolid (0.8 µg/ml), ciprofloxacin (0.2 µg/ml) or trimethoprim and sulfamethoxazole (0.8 µg/ml). For the most active compound 3, genotoxicity assay with use of Salmonella enterica serovar Typhimurium revealed safety in terms of genotoxicity at concentration 75 µg/ml and antibacterial activity against Salmonella at all higher concentrations. A final in silico prediction of skin metabolism of compound 3 seems promising, indicating stability of the xanthone moiety in the metabolism process.
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Affiliation(s)
- Gabriela Mazur
- Department of Bioorganic Chemistry, Chair of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Iwona Skiba-Kurek
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Elżbieta Karczewska
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Katarzyna Pańczyk-Straszak
- Department of Bioorganic Chemistry, Chair of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Joanna Jaworska
- Department of Bioorganic Chemistry, Chair of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Anna M Waszkielewicz
- Department of Bioorganic Chemistry, Chair of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
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Maj P, Mori M, Sobich J, Markowicz J, Uram Ł, Zieliński Z, Quaglio D, Calcaterra A, Cau Y, Botta B, Rode W. Alvaxanthone, a Thymidylate Synthase Inhibitor with Nematocidal and Tumoricidal Activities. Molecules 2020; 25:molecules25122894. [PMID: 32586022 PMCID: PMC7356228 DOI: 10.3390/molecules25122894] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 06/15/2020] [Accepted: 06/19/2020] [Indexed: 11/16/2022] Open
Abstract
With the aim to identify novel inhibitors of parasitic nematode thymidylate synthase (TS), we screened in silico an in-house library of natural compounds, taking advantage of a model of nematode TS three-dimensional (3D) structure and choosing candidate compounds potentially capable of enzyme binding/inhibition. Selected compounds were tested as (i) inhibitors of the reaction catalyzed by TSs of different species, (ii) agents toxic to a nematode parasite model (C. elegans grown in vitro), (iii) inhibitors of normal human cell growth, and (iv) antitumor agents affecting human tumor cells grown in vitro. The results pointed to alvaxanthone as a relatively strong TS inhibitor that causes C. elegans population growth reduction with nematocidal potency similar to the anthelmintic drug mebendazole. Alvaxanthone also demonstrated an antiproliferative effect in tumor cells, associated with a selective toxicity against mitochondria observed in cancer cells compared to normal cells.
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Affiliation(s)
- Piotr Maj
- Nencki Institute of Experimental Biology, 3 Pasteur Street, 02-093 Warsaw, Poland; (P.M.); (J.S.); (Z.Z.)
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, UK
| | - Mattia Mori
- Department of Biotechnology, Chemistry and Pharmacy, Department of Excellence 2018-2022, via Aldo Moro 2, 53100 Siena, Italy; (M.M.); (Y.C.)
| | - Justyna Sobich
- Nencki Institute of Experimental Biology, 3 Pasteur Street, 02-093 Warsaw, Poland; (P.M.); (J.S.); (Z.Z.)
| | - Joanna Markowicz
- Faculty of Chemistry, Rzeszów University of Technology, 6 Powstańców Warszawy Ave, 35-959 Rzeszów, Poland; (J.M.); (Ł.U.)
| | - Łukasz Uram
- Faculty of Chemistry, Rzeszów University of Technology, 6 Powstańców Warszawy Ave, 35-959 Rzeszów, Poland; (J.M.); (Ł.U.)
| | - Zbigniew Zieliński
- Nencki Institute of Experimental Biology, 3 Pasteur Street, 02-093 Warsaw, Poland; (P.M.); (J.S.); (Z.Z.)
| | - Deborah Quaglio
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (D.Q.); (A.C.); (B.B.)
| | - Andrea Calcaterra
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (D.Q.); (A.C.); (B.B.)
| | - Ylenia Cau
- Department of Biotechnology, Chemistry and Pharmacy, Department of Excellence 2018-2022, via Aldo Moro 2, 53100 Siena, Italy; (M.M.); (Y.C.)
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (D.Q.); (A.C.); (B.B.)
| | - Wojciech Rode
- Nencki Institute of Experimental Biology, 3 Pasteur Street, 02-093 Warsaw, Poland; (P.M.); (J.S.); (Z.Z.)
- Correspondence: ; Tel.: +48-608-351-155; Fax: +48-22-822-5342
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Araújo J, Fernandes C, Pinto M, Tiritan ME. Chiral Derivatives of Xanthones with Antimicrobial Activity. Molecules 2019; 24:E314. [PMID: 30654546 PMCID: PMC6359477 DOI: 10.3390/molecules24020314] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 01/12/2019] [Accepted: 01/14/2019] [Indexed: 12/11/2022] Open
Abstract
According to the World Health Organization, the exacerbated use of antibiotics worldwide is increasing multi-resistant infections, especially in the last decade. Xanthones are a class of compounds receiving great interest in drug discovery and development that can be found as natural products or obtained by synthesis. Many derivatives of xanthones are chiral and associated with relevant biological activities, including antimicrobial. The aim of this review is to compile information about chiral derivatives of xanthones from natural sources and their synthesized examples with antimicrobial activity.
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Affiliation(s)
- Joana Araújo
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Carla Fernandes
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR), University of Porto, Edificio do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal.
| | - Madalena Pinto
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR), University of Porto, Edificio do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal.
| | - Maria Elizabeth Tiritan
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR), University of Porto, Edificio do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal.
- Institute of Research and Advanced Training in Health Sciences and Technologies, Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra, 1317, 4585-116 Gandra PRD, Portugal.
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Chien TV, Anh NT, Thanh NT, Thao TTP, Loc TV, Sung TV. Two new prenylated isoflavones from Maclura cochinchinensis collected in Hoa Binh province Vietnam. Nat Prod Res 2018; 33:212-218. [DOI: 10.1080/14786419.2018.1443096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tran Van Chien
- Institute of Chemistry, Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen The Anh
- Institute of Chemistry, Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Tuan Thanh
- Institute of Chemistry, Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Tran Thi Phuong Thao
- Institute of Chemistry, Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Tran Van Loc
- Institute of Chemistry, Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Tran Van Sung
- Institute of Chemistry, Academy of Science and Technology (VAST), Hanoi, Vietnam
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Kinetics of Tyrosinase Inhibitory Activity Using Vitis vinifera Leaf Extracts. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5232680. [PMID: 28660210 PMCID: PMC5474274 DOI: 10.1155/2017/5232680] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 04/13/2017] [Accepted: 04/30/2017] [Indexed: 11/17/2022]
Abstract
Natural medical plant is considered as a good source of tyrosinase inhibitors. Red vine leaf extract (RVLE) can be applied to a wide variety of medical disciplines, such as treatments for chronic venous insufficiency over many decades. This study investigated the tyrosinase inhibitory activity of RVLE containing gallic acid, chlorogenic acid, epicatechin, rutin, and resveratrol which are effective for skin hyperpigmentation. The five components contents are 1.03, 0.2, 18.55, 6.45, and 0.48 mg/g for gallic acid, chlorogenic acid, epicatechin, rutin, and resveratrol. The kinetic study showed the tyrosinase inhibitory of RVLE via a competitive reaction mechanism. RVLE solution has an IC50 (the half inhibitory concentration) value of 3.84 mg/mL for tyrosinase inhibition, that is, an effective tyrosinase inhibitory activity, and can be used as a whitening agent for cosmetic formulations in the future.
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7
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A new exploration of licorice metabolome. Food Chem 2016; 221:959-968. [PMID: 27979300 DOI: 10.1016/j.foodchem.2016.11.068] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 10/25/2016] [Accepted: 11/16/2016] [Indexed: 12/14/2022]
Abstract
The roots and rhizomes of licorice plants (genus Glycyrrhiza L.) are commercially employed, after processing, in confectionery production or as sweetening and flavouring agents in the food, tobacco and beer industries. G. glabra, G. inflata and G. uralensis are the most significant licorice species, often indistinctly used for different productions. Licorice properties are directly related to its chemical composition, which determines the commercial values and the quality of the derived products. In order to better understand the characteristics and properties of each species, a chemical characterization of three species of licorice (G. glabra, G. inflata, G. uralensis) is proposed, through an untargeted metabolomic approach and using high-resolution mass spectrometry. The statistical analysis reveals new possible markers for the analyzed species, and provides a reliable identification of a high number of metabolites, contributing to the characterization of Glycyrrhiza metabolome.
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Abstract
Chemical investigation of the ethanol extract of the roots of Cudrania cochinchinensis led to the isolation of a new flavonoid, (6S,12S,13R)-1-methoxy cyanomaclurin (1), together with seven known compounds, 1,3,5-trihydroxy-4-(3'-hydroxy-3'-methylbutyl)xanthone (2), 1,3,6-trihydroxy-4-prenylxanthone (3), 1,3,6,7-tetrahydroxyxanthone (4), 1,3,5,6-tetrahydroxyxanthone (5), 1,3,6-trihydroxy-5-methoxyxanthone (6), resveratrol (7) and oxyresveratrol (8). The structure of compound 1 was elucidated on the basis of 1D and 2D NMR spectra and the HR-ESI-MS data. The absolute stereochemistry was deduced via Rh2(OCOCF3)4-induced CD and NOESY spectra.
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Affiliation(s)
- Li Chen
- a Beijing Institute of Radiation Medicine , Beijing 100850 , P.R. China
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9
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Zhou Q, Chen L, Yin HJ, Li B, Tian Y, Chen HW, Xiao YH, He XH, Zeng YL, Dong JX. Two new flavonols from Cudrania cochinchinensis. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2014; 16:976-981. [PMID: 24954131 DOI: 10.1080/10286020.2014.923843] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 05/09/2014] [Accepted: 05/09/2014] [Indexed: 06/03/2023]
Abstract
Two new flavonols, 6-p-hydroxybenzyl kaempferol (1) and 6-p-hydroxybenzyl quercetin (2), together with six known compounds were isolated from the roots of Cudrania cochinchinensis and their structures elucidated on the basis of spectroscopic methods. Their antioxidant capacities were evaluated by 1,1-diphenyl-2-picryl-hydrazyl and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical-scavenging assays. The results suggested that compounds 2, 4, and 7 showed significant radical-scavenging activities.
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Affiliation(s)
- Qi Zhou
- a School of Pharmaceutical Science, Central South University , Changsha 410013 , China
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10
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Evaluation of Benzophenone-N-ethyl Morpholine Ethers as Antibacterial and Antifungal Activities. J CHEM-NY 2014. [DOI: 10.1155/2014/941074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Microorganisms are closely associated with the health and welfare of human beings. Whereas some microorganisms are beneficial, others are detrimental. Bacterial infections often produce inflammation and pains and in some instances, infections result in high mortality. Any subtle change in the drug molecule, which may not be detected by chemical methods, can be revealed by a change in the antimicrobial activity and hence microbiological assays are very useful. A series of substituted hydroxy benzophenones and benzophenone-N-ethyl morpholine ethers were screened for their antibacterial and antifungal activities. Antibacterial activity againstS. aureus,E. aerogenes,M. luteus,K. pneumonia, andS. typhimurium,S. paratyphi-BandP. vulgarisbacterial strains and antifungal activity againstC. albicans,B. cinerea,M. pachydermatis,C. kruseifungal strains were carried out. The bioassays indicated that most of the synthesized compounds showed potential antibacterial and antifungal agents.
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Das A, Shaikh MM, Jana S. Design, synthesis, and in vitro antibacterial screening of some novel 3-pentyloxy-1-hydroxyxanthone derivatives. Med Chem Res 2013. [DOI: 10.1007/s00044-013-0653-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Synthesis and evaluation of pharmacological properties of some new xanthone derivatives with piperazine moiety. Bioorg Med Chem Lett 2013; 23:4419-23. [PMID: 23787101 DOI: 10.1016/j.bmcl.2013.05.062] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 05/16/2013] [Accepted: 05/17/2013] [Indexed: 10/26/2022]
Abstract
A series of new xanthone derivatives with piperazine moiety [1-7] was synthesized and evaluated for their pharmacological properties. They were subject to binding assays for α₁ and β₁ adrenergic as well as 5-HT₁A, 5-HT₆ and 5-HT₇b serotoninergic receptors. Five of the tested compounds were also evaluated for their anticonvulsant properties. The compound 3a 3-methoxy-5-{[4-(2-methoxyphenyl)piperazin-1-yl]methyl}-9H-xanthen-9-one hydrochloride exhibited significantly higher affinity for serotoninergic 5-HT₁A receptors (Ki=24 nM) than other substances. In terms of anticonvulsant activity, 6-methoxy-2-{[4-(benzyl)piperazin-1-yl]methyl}-9H-xanthen-9-one (5) proved best properties. Its ED₅₀ determined in maximal electroshock (MES) seizure assay was 105 mg/kg b.w. (rats, p.o.). Combining of xanthone with piperazine moiety resulted in obtaining of compounds with increased bioavailability after oral administration.
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13
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Kaomongkolgit R, Jamdee K, Pumklin J, Pavasant P. Laboratory evaluation of the antibacterial and cytotoxic effect of alpha-mangostin when used as a root canal irrigant. Indian J Dent 2013. [DOI: 10.1016/j.ijd.2012.12.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Hussain H, Hussain J, Al-Harrasi A, Saleem M, Green IR, van Ree T, Ghulam A. Chemistry and biology of genus Vismia. PHARMACEUTICAL BIOLOGY 2012; 50:1448-1462. [PMID: 22881063 DOI: 10.3109/13880209.2012.680972] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
CONTEXT Many herbal remedies have been employed in the treatment and management of various human ailments since the beginning of human civilization. Vismia is an extensive genus of the family Hypericaceae and consists of small trees inhabiting the tropical and subtropical regions of South and Central America. Within the framework of an International Cooperative Biodiversity Groups project, three Vismia species were studied for their potential anticancer activity. OBJECTIVES This review is an extensive study of the available scientific literature published and comprises of the ethnopharmacological, phytochemical and therapeutic potential of genus of plants under the umbrella Vismia. METHODS The present review includes 134 natural products with 47 references compiled from the major databases, viz., Chemical Abstracts, Science Direct, SciFinder, PubMed, Dr. Dukes Phytochemical and Ethnobotany, CIMER, and InteliHealth. RESULTS An exhaustive survey of the accessed literature revealed that flavonoids, flavanols, xanthones, anthraones, anthraquinones, benzophenones, lignans, steroids, monoterpenes and triterpenes constituted the major classes of phytoconstituents of this genus. Pharmacological reports revealed that it is used for skin diseases such as dermatitis, leprosy, syphilis, herpes, scabies and eczemas, and as an anticancer for human breast, CNS, and lung cancer cell lines. CONCLUSION Genus Vismia plants seem to hold great potential for an in-depth investigation towards discovering biological activities, especially for the treatment of cancers affecting our society. Through this review, the authors hope to attract the attention of natural product researchers throughout the world to focus on the unexplored potential of Vismia plants, with the view of developing new formulations with an improved therapeutic value.
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Affiliation(s)
- Hidayat Hussain
- Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, Birkat Al-Mouz, Sultanate of Oman, Nizwa, Oman.
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Chiou WF, Chen CC, Lin IH, Chiu JH, Chen YJ. 1,3,5-trihydroxy-4-prenylxanthone represses lipopolysaccharide-induced iNOS expression via impeding posttranslational modification of IRAK-1. Biochem Pharmacol 2011; 81:752-60. [PMID: 21232528 DOI: 10.1016/j.bcp.2010.12.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Revised: 12/20/2010] [Accepted: 12/21/2010] [Indexed: 12/30/2022]
Abstract
Both high level of nitric oxide (NO) and its generating enzyme, inducible NO synthase (iNOS), play important roles in pathophysiological conditions such as inflammatory processes. We previously found that 1,3,5-trihydroxy-4-prenylxanthone (TH-4-PX) isolated from Cudrania cochinchinensis repressed lipopolysaccharide (LPS)-induced NO production in RAW264.7 macrophages. Here we further examined the underlying mechanisms using RT-PCR and Western blot analyses. Consistent with NO inhibition, suppression of LPS-induced iNOS expression by TH-4-PX through abolishing IκB kinase (IKK) phosphorylation, IκB degradation and nuclear factor-κB (NF-κB) nuclear translocation was observed. After LPS stimulation, the increased nuclear level of c-Fos and c-Jun (major components of activator protein-1, AP-1) and the phosphorylated level of upstream signal molecules, such as c-Jun NH2-terminal kinase (JNK) and extracellular signal-regulated kinase, (ERK) were all significantly suppressed by TH-4-PX, while p38 remained unaffected. A further experiment revealed that TH-4-PX inhibited the phosphorylation of transforming growth factor-β (TGF-β)-activated kinase 1 (TAK1), an upstream signaling molecule required for IKK and mitogen-activated protein kinases (MAPKs) activation. Stimulation with LPS also triggered the modification (phosphorylation and ubiquitination) and eventually the proteasomal degradation of membrane-associated interleukin (IL)-1 receptor-associated serine/threonine kinase 1 (IRAK-1), an essential signaling component to toll-like receptor (TLR)-mediated TAK-1 activation. Interestingly, the modified pattern of IRAK-1 in the presence LPS was significantly attenuated by TH-4-PX treatment. In conclusion, TH-4-PX inhibited LPS-induced NF-κB and AP-1 activations by interfering with the posttranslational modification (phosphorylation and/or ubiquitinylation) of IRAK-1 in the cell membrane to impede TAK1-mediated activation of IKK and MAPKs signal transduction.
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Affiliation(s)
- Wen-Fei Chiou
- National Research Institute of Chinese Medicine, Taipei, Taiwan.
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16
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Crockett S, Eberhardt M, Kunert O, Schühly W. Hypericum species in the Páramos of Central and South America: a special focus upon H. irazuense Kuntze ex N. Robson. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2010; 9:255-269. [PMID: 21151765 PMCID: PMC3000602 DOI: 10.1007/s11101-009-9148-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Knowledge about members of the flowering plant family Clusiaceae occurring in the tropical mountain regions of the world is limited, in part due to endemism and restricted distributions. High altitude vegetation habitats (Páramos) in Central and South America are home to numerous native Hypericum species. Information related to the phytochemistry of páramo Hypericum, as well as ecological factors with the potential to influence chemical defenses in these plants, is briefly reviewed. Results of the phytochemical analysis of Hypericum irazuense, a species collected in the páramo of the Cordillera de Talamanca in Costa Rica, are presented. Lastly, guidelines for the viable and sustainable collections of plant material, to facilitate future investigations of these interesting plants, are given.
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Affiliation(s)
- Sara Crockett
- Institute Pharmaceutical Sciences, Pharmacognosy, Karl-Franzens-Universität Graz, Universitätsplatz 4, 8010 Graz, Austria
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Wang L, Kuang L, Pan X, Liu J, Wang Q, Du B, Li D, Luo J, Liu M, Hou A, Qian M. Isoalvaxanthone inhibits colon cancer cell proliferation, migration and invasion through inactivating Rac1 and AP-1. Int J Cancer 2009; 127:1220-9. [DOI: 10.1002/ijc.25119] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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18
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Pereira CG, Meireles MAA. Supercritical Fluid Extraction of Bioactive Compounds: Fundamentals, Applications and Economic Perspectives. FOOD BIOPROCESS TECH 2009. [DOI: 10.1007/s11947-009-0263-2] [Citation(s) in RCA: 394] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Tamokou JDD, Tala MF, Wabo HK, Kuiate JR, Tane P. Antimicrobial activities of methanol extract and compounds from stem bark of Vismia rubescens. JOURNAL OF ETHNOPHARMACOLOGY 2009; 124:571-575. [PMID: 19464353 DOI: 10.1016/j.jep.2009.04.062] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2009] [Revised: 04/28/2009] [Accepted: 04/29/2009] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The plant, Vismia rubescens (Guttiferae) is popularly used in Cameroon and in several parts of Africa as febrifugal and for the treatment of various microbial infections (skin diseases, diarrhoea and venereal diseases). AIM OF THE STUDY This study was mapped out to evaluate the antimicrobial activities of the methanol extract and compounds from the stem bark of Vismia rubescens. MATERIALS AND METHODS Structures of the compounds obtained after column chromatography of the methanol-soluble fraction were determined by spectroscopy and in comparison with published data. The broth micro-dilution method was used to evaluate the antimicrobial activities against three bacteria species (Salmonella typhi, Staphylococcus aureus and Pseudomonas aeruginosa) and four yeast species (Candida albicans, Candida tropicalis, Candida parapsilosis and Cryptococcus neoformans). RESULTS Chemical analysis of the methanol extract from the stem bark of Vismia rubescens yielded five known compounds 1,4,8-trihydroxyxanthone (1), 1,7-dihydroxyxanthone (2), physcion (3), friedelin (4) and friedelanol (5). The crude extract and compounds 1, 2 and 3 exhibited both antibacterial and antifungal activities that varied between the microbial species (MIC=3.12-1000 microg/ml). Compounds 2 and 3 were the most active (MIC=3.12-100 microg/ml) while Staphylococcus aureus and Pseudomonas aeruginosa were sensitive to all the tested compounds. The antimicrobial activity of this plant as well as that of compounds 1 and 2 is being reported here for the first time. CONCLUSION These results provide promising baseline information for the potential use of this plant as well as some of the isolated compounds in the treatment of skin diseases and diarrhoea.
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Affiliation(s)
- Jean De Dieu Tamokou
- Department of Biochemistry, Faculty of Science, University of Dschang, P.O. Box 67 Dschang, Cameroon
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Naldoni F, Claudino A, Cruz J, Chavasco J, e Silva PF, Veloso M, Santos MD. Antimicrobial Activity of Benzophenones and Extracts from the Fruits of Garcinia brasiliensis. J Med Food 2009; 12:403-7. [DOI: 10.1089/jmf.2007.0622] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- F.J. Naldoni
- Laboratório de Fitoquímica e Química Medicinal, Departamento de Farmácia, Universidade Federal de Alfenas, Alfenas, Minas Gerais, Brazil
| | - A.L.R. Claudino
- Laboratório de Microbiologia Básica e Imunologia, Departamento de Ciências Biológicas, Universidade Federal de Alfenas, Alfenas, Minas Gerais, Brazil
| | - J.W. Cruz
- Laboratório de Fitoquímica e Química Medicinal, Departamento de Farmácia, Universidade Federal de Alfenas, Alfenas, Minas Gerais, Brazil
| | - J.K. Chavasco
- Laboratório de Microbiologia Básica e Imunologia, Departamento de Ciências Biológicas, Universidade Federal de Alfenas, Alfenas, Minas Gerais, Brazil
| | - P.M. Faria e Silva
- Laboratório de Microbiologia Básica e Imunologia, Departamento de Ciências Biológicas, Universidade Federal de Alfenas, Alfenas, Minas Gerais, Brazil
| | - M.P. Veloso
- Laboratório de Fitoquímica e Química Medicinal, Departamento de Farmácia, Universidade Federal de Alfenas, Alfenas, Minas Gerais, Brazil
| | - M.H. Dos Santos
- Laboratório de Fitoquímica e Química Medicinal, Departamento de Farmácia, Universidade Federal de Alfenas, Alfenas, Minas Gerais, Brazil
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Niedziałkowski P, Ossowski T, Sikorski A. Methyl 7-methoxy-9-oxo-9 H-xanthene-2-carboxylate. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o484-5. [PMID: 21582153 PMCID: PMC2968451 DOI: 10.1107/s1600536809003602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2009] [Accepted: 01/29/2009] [Indexed: 11/11/2022]
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Marona H, Pekala E, Antkiewicz-Michaluk L, Walczak M, Szneler E. Anticonvulsant activity of some xanthone derivatives. Bioorg Med Chem 2008; 16:7234-44. [PMID: 18640843 DOI: 10.1016/j.bmc.2008.06.039] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2008] [Revised: 06/17/2008] [Accepted: 06/20/2008] [Indexed: 11/24/2022]
Abstract
A series of appropriate alkanolamine and amide derivatives of xanthone were prepared and evaluated for anticonvulsant activity using maximal electroshock (MES) and subcutaneous pentylenetetrazole (scMet) induced seizures, and for neurotoxicity (TOX) using the rotorod test on mice and rats. The most promising compounds seem to be the appropriate aminoalkanolic derivatives of 6-chloroxanthone, among which the R-(-) and S-(+)-2amino-1-propanol derivatives of 6-chloro-2-methylxanthone (2(a) and 2(b)) displayed anti-MES activity (in mice) with a protective index (TD(50)/ED(50)) of 6.23<6.85, corresponding to that of phenytoin, carbamazepine and valproate. The most active compound, 2(b), was determined to have an affinity to the benzodiazepine (BDZ) receptor and voltage-dependent Ca(2+) channel (VDCC) by using radioligand binding assays. The enantiomeric purities of 2(a) and 2(b) were determined using an analytical liquid chromatography-mass spectrometry method.
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Affiliation(s)
- Henryk Marona
- Jagiellonian University, Medical College, Faculty of Pharmacy, Department of Technology and Biotechnology of Drugs, Medyczna 9, 30-688 Cracow, Poland.
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