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Su Z, Amin PM, Wang S. Gold(I)-Catalyzed Ring-Closing Alkyne-Carbonyl Metathesis for the Synthesis of Butenolides. Chemistry 2023; 29:e202302044. [PMID: 37652895 DOI: 10.1002/chem.202302044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/31/2023] [Accepted: 08/31/2023] [Indexed: 09/02/2023]
Abstract
Alkyne-carbonyl metathesis is a type of carbon-carbon forming reaction involving the construction a carbon-carbon double bond and a carbonyl group in one transformation. Herein, a Au(I)-catalyzed ring-closing alkyne-carbonyl metathesis protocol has been developed to make densely substituted γ-butenolides from propargyl α-ketoesters. It features 100 % atom economy, excellent substrate flexibility and benign functional group tolerance. Mechanistic studies demonstrate that the coordinative interaction between the gold catalyst and the alkyne might initiate the transfer of an oxygen atom and the formation of the carbon-carbon double bond. By using this gold-catalyzed ring-closing alkyne-carbonyl metathesis as a key step reaction, four naturally occurring butenolide-type compounds including decumbic acid (45 % yield for 3 steps), deoxyisosporothric acid (32 % yield for 5 steps), lichesterinic acid (34 % yield for 5 steps) and isomuronic acid (6 % yield for 8 steps) have been synthesized starting from commercially available starting materials.
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Affiliation(s)
- Zhenjie Su
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu, 210023, China
| | - Pathan Mosim Amin
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu, 210023, China
| | - Shaozhong Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu, 210023, China
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2
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Desmarets L, Millot M, Chollet-Krugler M, Boustie J, Camuzet C, François N, Rouillé Y, Belouzard S, Tomasi S, Mambu L, Séron K. Lichen or Associated Micro-Organism Compounds Are Active against Human Coronaviruses. Viruses 2023; 15:1859. [PMID: 37766264 PMCID: PMC10536056 DOI: 10.3390/v15091859] [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: 08/11/2023] [Revised: 08/27/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
(1) Background: Since the emergence of SARS-CoV-2, responsible for the COVID-19 pandemic, efforts have been made to identify antiviral compounds against human coronaviruses. With the aim of increasing the diversity of molecule scaffolds, 42 natural compounds, of which 28 were isolated from lichens and 14 from their associated microorganisms (bacteria and fungi), were screened against human coronavirus HCoV-229E. (2) Methods: Antiviral assays were performed using HCoV-229E in Huh-7 and Huh-7/TMPRSS2 cells and SARS-CoV-2 in a Vero-81-derived clone with a GFP reporter probe. (3) Results: Four lichen compounds, including chloroatranol, emodin, perlatolic acid and vulpinic acid, displayed high activities against HCoV-229E (IC50 = 68.86, 59.25, 16.42 and 14.58 μM, respectively) and no toxicity at active concentrations. Kinetics studies were performed to determine their mode of action. The four compounds were active when added at the replication step. Due to their significant activity, they were further tested on SARS-CoV-2. Perlatolic acid was shown to be active against SARS-CoV-2. (4) Conclusions: Taken together, these results show that lichens are a source of interesting antiviral agents against human coronaviruses. Moreover, perlatolic acid might be further studied for its pan-coronavirus antiviral activity.
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Affiliation(s)
- Lowiese Desmarets
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019—UMR9017—Center for Infection and Immunity of Lille (CIIL), F-59000 Lille, France; (L.D.); (Y.R.); (S.B.)
| | - Marion Millot
- Univ. Limoges, Laboratoire LABCiS, UR 22722, F-87000 Limoges, France; (M.M.); (L.M.)
| | - Marylène Chollet-Krugler
- Univ. Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226, F-35700 Rennes, France; (M.C.-K.); (J.B.); (S.T.)
| | - Joël Boustie
- Univ. Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226, F-35700 Rennes, France; (M.C.-K.); (J.B.); (S.T.)
| | - Charline Camuzet
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019—UMR9017—Center for Infection and Immunity of Lille (CIIL), F-59000 Lille, France; (L.D.); (Y.R.); (S.B.)
| | - Nathan François
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019—UMR9017—Center for Infection and Immunity of Lille (CIIL), F-59000 Lille, France; (L.D.); (Y.R.); (S.B.)
| | - Yves Rouillé
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019—UMR9017—Center for Infection and Immunity of Lille (CIIL), F-59000 Lille, France; (L.D.); (Y.R.); (S.B.)
| | - Sandrine Belouzard
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019—UMR9017—Center for Infection and Immunity of Lille (CIIL), F-59000 Lille, France; (L.D.); (Y.R.); (S.B.)
| | - Sophie Tomasi
- Univ. Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226, F-35700 Rennes, France; (M.C.-K.); (J.B.); (S.T.)
| | - Lengo Mambu
- Univ. Limoges, Laboratoire LABCiS, UR 22722, F-87000 Limoges, France; (M.M.); (L.M.)
| | - Karin Séron
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019—UMR9017—Center for Infection and Immunity of Lille (CIIL), F-59000 Lille, France; (L.D.); (Y.R.); (S.B.)
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3
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Nunheim NF, Kaiser B, Thiel WR. Ruthenium(III) Chloride as an Efficient Catalyst for the Selective Oxidation of Fatty Alcohols to Aldehydes. ChemistrySelect 2023. [DOI: 10.1002/slct.202300346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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4
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González EV, Schwaiger S, Stuppner H. Two-step isolation of the two major paraconic acids of Cetraria islandica. J Sep Sci 2023; 46:e2200805. [PMID: 36630529 DOI: 10.1002/jssc.202200805] [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: 10/06/2022] [Revised: 11/17/2022] [Accepted: 12/23/2022] [Indexed: 01/13/2023]
Abstract
The lichen Cetraria islandica is traditionally used as a demulcent for the symptomatic treatment of irritations of the mouth and throat and associated dry cough, as well as for the treatment of temporary loss of appetite. In addition to depsides and depsidones, thalli contain paraconic acids, a group of secondary metabolites commonly found in lichens and fungi. Among those, protolichesterinic acid has shown promising pharmacological activities. However, the efficient isolation of paraconic acids is quite complex due to their very similar chemical structures and their weak ultraviolet absorption. In the present work, a two-step isolation protocol of protolichesterinic acid and lichesterinic acid from a complex paraconic acid mixture is described using Sephadex LH20 column chromatography and fast centrifugal partition chromatography. Final purities higher than 95% and recoveries above 50% are achieved. Additionally, reliable qualitative techniques for detecting and differentiating paraconic acids are described. Finally, some data on compound stability and enantiomeric purity are shown.
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Affiliation(s)
| | - Stefan Schwaiger
- Institute of Pharmacy/Pharmacognosy, CMBI, University of Innsbruck, Innsbruck, Austria
| | - Hermann Stuppner
- Institute of Pharmacy/Pharmacognosy, CMBI, University of Innsbruck, Innsbruck, Austria
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5
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Novel cytotoxic amphiphilic nitro-compounds derived from a synthetic route for paraconic acids. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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He L, Ahmed EAMA, Liu H, Hu X, Xiao HP, Li J, Jiang J. Asymmetric Construction of α-Substituted β-Hydroxy Lactones via Ni Catalyzed Decarboxylative Addition Reaction. J Org Chem 2021; 86:4825-4834. [PMID: 33635652 DOI: 10.1021/acs.joc.0c02854] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We described a Ni-bidentate oxazoline catalyzed highly enantio- and diastereoselective decarboxylative aldol reaction of 2-oxotetrahydrofuran-3-carboxylic acid/2-oxochromane-3-carboxylic acid derivatives with different kinds of carbonyls. Under optimal reaction conditions, α-substituted β-hydroxy butyrolactones and dihydrocoumarins with an all-carbon quaternary stereocenter have been generated with high levels of functional-group compatibility. Furthermore, proficient transformations of products were also described, in which an aliphatic tertiary alcohol and a multi-substituted 1,4-diol were smoothly constructed through hydrogenation and ring-opening reaction, respectively.
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Affiliation(s)
- Lingchen He
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | | | - Hongxin Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xingen Hu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Hong-Ping Xiao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Juan Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Jun Jiang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
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7
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Affiliation(s)
- Ahmed Y. Nuriye
- Department of ChemistryThe Pennsylvania State University, Abington College Abington Pennsylvania USA
| | - Cristina V. Craescu
- Department of ChemistryThe Pennsylvania State University, Abington College Abington Pennsylvania USA
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8
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Drennhaus T, Öhler L, Djalali S, Höfmann S, Müller C, Pietruszka J, Worgull D. Enantioselective Ammonium Ylide Mediated One‐Pot Synthesis of Highly Substituted
γ
‐Butyrolactones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000039] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Till Drennhaus
- Institute of Bio- and Geosciences (IBG-1)Forschungszentrum Jülich 52426 Jülich Germany
| | - Laura Öhler
- Institute of Bioorganic ChemistryHeinrich Heine University Düsseldorf located at Forschungszentrum Jülich Stetternicher Forst, Building 15.8 52426 Jülich Germany
| | - Saveh Djalali
- Institute of Bioorganic ChemistryHeinrich Heine University Düsseldorf located at Forschungszentrum Jülich Stetternicher Forst, Building 15.8 52426 Jülich Germany
| | - Svenja Höfmann
- Institute of Bioorganic ChemistryHeinrich Heine University Düsseldorf located at Forschungszentrum Jülich Stetternicher Forst, Building 15.8 52426 Jülich Germany
| | - Clemens Müller
- Institute of Bioorganic ChemistryHeinrich Heine University Düsseldorf located at Forschungszentrum Jülich Stetternicher Forst, Building 15.8 52426 Jülich Germany
| | - Jörg Pietruszka
- Institute of Bioorganic ChemistryHeinrich Heine University Düsseldorf located at Forschungszentrum Jülich Stetternicher Forst, Building 15.8 52426 Jülich Germany
- Institute of Bio- and Geosciences (IBG-1)Forschungszentrum Jülich 52426 Jülich Germany
| | - Dennis Worgull
- Institute of Bioorganic ChemistryHeinrich Heine University Düsseldorf located at Forschungszentrum Jülich Stetternicher Forst, Building 15.8 52426 Jülich Germany
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9
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Nguyen SS, Ferreira AJ, Long ZG, Heiss TK, Dorn RS, Row RD, Prescher JA. Butenolide Synthesis from Functionalized Cyclopropenones. Org Lett 2019; 21:8695-8699. [PMID: 31622107 DOI: 10.1021/acs.orglett.9b03298] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A general method to synthesize substituted butenolides from hydroxymethylcyclopropenones is reported. Functionalized cyclopropenones undergo ring-opening reactions with catalytic amounts of phosphine, forming reactive ketene ylides. These intermediates can be trapped by pendant hydroxy groups to afford target butenolide scaffolds. The reaction proceeds efficiently in diverse solvents and with low catalyst loadings. Importantly, the cyclization is tolerant of a broad range of functional groups, yielding a variety of α- and γ-substituted butenolides.
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10
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Sweidan A, Smida I, Chollet-Krugler M, Sauvager A, Vallet J, Gouault N, Oliviero N, Tamanai-Shacoori Z, Burel A, van de Weghe P, Chokr A, Tomasi S, Bousarghin L. Lichen butyrolactone derivatives disrupt oral bacterial membrane. Fitoterapia 2019; 137:104274. [DOI: 10.1016/j.fitote.2019.104274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 07/20/2019] [Accepted: 07/21/2019] [Indexed: 02/06/2023]
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11
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Cao L, Yan W, Gu C, Wang Z, Zhao S, Kang S, Khan B, Zhu H, Li J, Ye Y. New Alkylitaconic Acid Derivatives from Nodulisporium sp. A21 and Their Auxin Herbicidal Activities on Weed Seeds. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:2811-2817. [PMID: 30789727 DOI: 10.1021/acs.jafc.8b04996] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Five alkylitaconic acid (AA) derivatives, including two novel compounds, epideoxysporothric acid (2) and sporochartine F (5), and three known compounds, deoxysporothric acid (1), deoxyisosporothric acid (3), and 1-undecen-2,3-dicarboxylic acid (4), were obtained from the fermentation culture of the endophytic fungus Nodulisporium sp. A21. The auxin herbicidal activities of compounds 1-4 against weed seeds were investigated under laboratory conditions. In general, the tested compounds displayed radicle growth promoting activity at low doses and inhibitory activity at higher doses. Compounds 1 and 2 could significantly inhibit the radicle growth of dicotyledon weeds, Eclipta prostrata and Veronica persica, at a concentration range from 50 to 200 μg mL-1, while 3 notably stimulated radicle growth at the same concentration range. The results suggested that these AA derivatives have the potential to be used as the lead scaffold for novel auxin herbicide development. In addition, the biosynthetic pathways of 1-4 were deduced based on 13C labeling experiment.
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Affiliation(s)
- Lingling Cao
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- Key Laboratory of Integrated Management of Crop Diseases and Pests , Ministry of Education , Nanjing 210095 , P. R. China
| | - Wei Yan
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- Key Laboratory of Integrated Management of Crop Diseases and Pests , Ministry of Education , Nanjing 210095 , P. R. China
| | - Chenguang Gu
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- Key Laboratory of Integrated Management of Crop Diseases and Pests , Ministry of Education , Nanjing 210095 , P. R. China
| | - Zhiyang Wang
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- Key Laboratory of Integrated Management of Crop Diseases and Pests , Ministry of Education , Nanjing 210095 , P. R. China
| | - Shuangshuang Zhao
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- Key Laboratory of Integrated Management of Crop Diseases and Pests , Ministry of Education , Nanjing 210095 , P. R. China
| | - Shuang Kang
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- Key Laboratory of Integrated Management of Crop Diseases and Pests , Ministry of Education , Nanjing 210095 , P. R. China
| | - Babar Khan
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- Key Laboratory of Integrated Management of Crop Diseases and Pests , Ministry of Education , Nanjing 210095 , P. R. China
| | - Hailiang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences , Nanjing University , Nanjing 210023 , P. R. China
| | - Jun Li
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- Key Laboratory of Integrated Management of Crop Diseases and Pests , Ministry of Education , Nanjing 210095 , P. R. China
| | - Yonghao Ye
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- Key Laboratory of Integrated Management of Crop Diseases and Pests , Ministry of Education , Nanjing 210095 , P. R. China
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12
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Xia MW, Yang Y, Xu R, Li CW, Cui CB. A new polyketide purpurogenic acid: the activated production of polyketides by the diethyl sulphate mutagenesis of marine-derived Penicillium purpurogenum G59. Nat Prod Res 2018; 33:89-94. [DOI: 10.1080/14786419.2018.1434644] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ming-Wen Xia
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Yu Yang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Rui Xu
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Chang-Wei Li
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Cheng-Bin Cui
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
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13
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Dai Y, Liu Y, Sun B, Yang S, Tian H. Enantioselective syntheses and sensory properties of 2-Alken-4-olides. FLAVOUR FRAG J 2017. [DOI: 10.1002/ffj.3415] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Yifeng Dai
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key laboratory of Flavor Chemistry; Beijing Technology and Business University; Beijing China 100048
- Guizhou University; Guizhou China 550025
| | - Yongguo Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key laboratory of Flavor Chemistry; Beijing Technology and Business University; Beijing China 100048
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key laboratory of Flavor Chemistry; Beijing Technology and Business University; Beijing China 100048
| | - Shaoxiang Yang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key laboratory of Flavor Chemistry; Beijing Technology and Business University; Beijing China 100048
| | - Hongyu Tian
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key laboratory of Flavor Chemistry; Beijing Technology and Business University; Beijing China 100048
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14
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Sweidan A, Chollet-Krugler M, Sauvager A, van de Weghe P, Chokr A, Bonnaure-Mallet M, Tomasi S, Bousarghin L. Antibacterial activities of natural lichen compounds against Streptococcus gordonii and Porphyromonas gingivalis. Fitoterapia 2017; 121:164-169. [PMID: 28736072 DOI: 10.1016/j.fitote.2017.07.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 07/17/2017] [Accepted: 07/19/2017] [Indexed: 12/18/2022]
Abstract
The oral bacteria not only infect the mouth and reside there, but also travel through the blood and reach distant body organs. If left untreated, the dental biofilm that can cause destructive inflammation in the oral cavity may result in serious medical complications. In dental biofilm, Streptococcus gordonii, a primary oral colonizer, constitutes the platform on which late pathogenic colonizers like Porphyromonas gingivalis, the causative agent of periodontal diseases, will bind. The aim of this study was to determine the antibacterial activity of eleven natural lichen compounds belonging to different chemical families and spanning from linear into cyclic and aromatic structures to uncover new antibiotics which can fight against the oral bacteria. The compounds were screened by broth microdilution assay. Three compounds were shown to have promising antibacterial activities where the depsidone core with certain functional groups constituted the best compound, psoromic acid, with the lowest MICs=11.72 and 5.86μg/mL against S. gordonii and P. gingivalis, respectively. The compounds screened had promising antibacterial activity which might be attributed to some important functional groups as discussed in our study. The best compounds did not induce the death of gingival epithelial carcinoma cells (Ca9-22). These results introduce new compounds having potent antibacterial activities against oral pathogens causing serious medical complications.
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Affiliation(s)
- Alaa Sweidan
- U-1241 INSERM-INRA, Equipe CIMIAD, Univ. Rennes 1, Univ. Bretagne Loire, 2 Avenue du Pr. Léon Bernard, F-35043 Rennes, France; Laboratory of Microbiology, Department of Life and Earth Sciences, Faculty of Sciences I, Lebanese University, Hadath Campus, Beirut, Lebanon
| | - Marylène Chollet-Krugler
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes, Equipe CORINT, Univ. Rennes 1, Univ. Bretagne Loire, 2 Avenue du Pr. Léon Bernard, F-35043 Rennes, France
| | - Aurélie Sauvager
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes, Equipe CORINT, Univ. Rennes 1, Univ. Bretagne Loire, 2 Avenue du Pr. Léon Bernard, F-35043 Rennes, France
| | - Pierre van de Weghe
- Inserm U1242, Chemistry Oncogenesis Stress Signaling (COSS), Univ. Bretagne Loire, 2 Avenue du Pr. Léon Bernard, F-35043 Rennes, France
| | - Ali Chokr
- Laboratory of Microbiology, Department of Life and Earth Sciences, Faculty of Sciences I, Lebanese University, Hadath Campus, Beirut, Lebanon
| | - Martine Bonnaure-Mallet
- U-1241 INSERM-INRA, Equipe CIMIAD, Univ. Rennes 1, Univ. Bretagne Loire, 2 Avenue du Pr. Léon Bernard, F-35043 Rennes, France
| | - Sophie Tomasi
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes, Equipe CORINT, Univ. Rennes 1, Univ. Bretagne Loire, 2 Avenue du Pr. Léon Bernard, F-35043 Rennes, France
| | - Latifa Bousarghin
- U-1241 INSERM-INRA, Equipe CIMIAD, Univ. Rennes 1, Univ. Bretagne Loire, 2 Avenue du Pr. Léon Bernard, F-35043 Rennes, France.
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Abstract
Covering: 2010 up to 2017Life on Earth is characterized by a remarkable abundance of symbiotic and highly refined relationships among life forms. Defined as any kind of close, long-term association between two organisms, symbioses can be mutualistic, commensalistic or parasitic. Historically speaking, selective pressures have shaped symbioses in which one organism (typically a bacterium or fungus) generates bioactive small molecules that impact the host (and possibly other symbionts); the symbiosis is driven fundamentally by the genetic machineries available to the small molecule producer. The human microbiome is now integral to the most recent chapter in animal-microbe symbiosis studies and plant-microbe symbioses have significantly advanced our understanding of natural products biosynthesis; this also is the case for studies of fungal-microbe symbioses. However, much less is known about microbe-microbe systems involving interspecies interactions. Microbe-derived small molecules (i.e. antibiotics and quorum sensing molecules, etc.) have been shown to regulate transcription in microbes within the same environmental niche, suggesting interspecies interactions whereas, intraspecies interactions, such as those that exploit autoinducing small molecules, also modulate gene expression based on environmental cues. We, and others, contend that symbioses provide almost unlimited opportunities for the discovery of new bioactive compounds whose activities and applications have been evolutionarily optimized. Particularly intriguing is the possibility that environmental effectors can guide laboratory expression of secondary metabolites from "orphan", or silent, biosynthetic gene clusters (BGCs). Notably, many of the studies summarized here result from advances in "omics" technologies and highlight how symbioses have given rise to new anti-bacterial and antifungal natural products now being discovered.
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Affiliation(s)
- Navid Adnani
- University of Wisconsin Madison, School of Pharmacy, Div. of Pharmaceutical Sciences, 777 Highland Ave., Madison, WI 53705-2222, USA.
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