1
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Chemical Constituents of the Petroleum-Ether Fraction from Seeds of Saussurea Involucrata. Chem Nat Compd 2020. [DOI: 10.1007/s10600-020-03032-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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2
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Sanabria-Ríos DJ, Morales-Guzmán C, Mooney J, Medina S, Pereles-De-León T, Rivera-Román A, Ocasio-Malavé C, Díaz D, Chorna N, Carballeira NM. Antibacterial Activity of Hexadecynoic Acid Isomers toward Clinical Isolates of Multidrug-Resistant Staphylococcus aureus. Lipids 2020; 55:101-116. [PMID: 31975430 DOI: 10.1002/lipd.12213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 12/16/2019] [Accepted: 01/06/2020] [Indexed: 11/07/2022]
Abstract
In the present study, the structural characteristics that impart antibacterial activity to C16 alkynoic fatty acids (aFA) were further investigated. The syntheses of hexadecynoic acids (HDA) containing triple bonds at C-3, C-6, C-8, C-9, C-10, and C-12 were carried out in four steps and with an overall yield of 34-78%. In addition, HDA analogs containing a sulfur atom at either C-4 or C-5 were also prepared in 69-77% overall yields, respectively. Results from this study revealed that the triple bond at C-2 is pivotal for the antibacterial activity displayed by 2-HDA, while the farther the position of the triple bond from the carbonyl group, the lower its bactericidal activity against gram-positive bacteria, including clinical isolates of methicillin-resistant Staphylococcus aureus (CIMRSA) strains. The potential of 2-HDA as an antibacterial agent was also assessed in five CIMRSA strains that were resistant to Ciprofloxacin (Cipro) demonstrating that 2-HDA was the most effective treatment in inhibiting their growth when compared with either Cipro alone or equimolar combinations of Cipro and 2-HDA. Moreover, it was proved that the inhibition of S. aureus DNA gyrase can be linked to the antibacterial activity displayed by 2-HDA. Finally, it was determined that the ability of HDA analogs to form micelles can be linked to their decreased activity against gram-positive bacteria, since critical micellar concentrations (CMC) between 50 and 300 μg/mL were obtained.
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Affiliation(s)
- David J Sanabria-Ríos
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, San Juan, PR, 00919, USA
| | - Christian Morales-Guzmán
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, 17 Ave Universidad STE 1701, San Juan, PR, 00925, USA
| | - Joseph Mooney
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, San Juan, PR, 00919, USA
| | - Solymar Medina
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, San Juan, PR, 00919, USA
| | - Tomás Pereles-De-León
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, San Juan, PR, 00919, USA
| | - Ashley Rivera-Román
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, San Juan, PR, 00919, USA
| | - Carlimar Ocasio-Malavé
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, San Juan, PR, 00919, USA
| | - Damarith Díaz
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, San Juan, PR, 00919, USA
| | - Nataliya Chorna
- Department of Biochemistry, University of Puerto Rico, Medical Sciences, Campus, PO Box 365067, San Juan, PR, 00936, USA
| | - Néstor M Carballeira
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, 17 Ave Universidad STE 1701, San Juan, PR, 00925, USA
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3
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D’yakonov VA, Tuktarova RA, Dzhemilev UM. Ti-Catalyzed Cross-Cyclomagnesiation of 1,2-Dienes in the Total Z, Z, Z-Stereoselective Synthesis of Natural Acetogenin-Chatenaytrienin-1. ACS OMEGA 2019; 4:14085-14091. [PMID: 31497727 PMCID: PMC6714518 DOI: 10.1021/acsomega.9b01951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 08/08/2019] [Indexed: 06/10/2023]
Abstract
The first total synthesis of natural acetogenin, chatenaytrienin-1, was performed in 10 steps and in 41% overall yield using cross-cyclomagnesiation of (6Z)-heptadeca-1,2,6-triene and trideca-11,12-dien-1-ol tetrahydropyran acetal with EtMgBr in the presence of Mg metal and the Cp2TiCl2 catalyst (10 mol %) as the key step of the synthesis.
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4
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Dzhemileva LU, D'yakonov VA, Makarov AA, Andreev EN, Yunusbaeva MM, Dzhemilev UM. The first total synthesis of the marine acetylenic alcohol, lembehyne B - a selective inducer of early apoptosis in leukemia cancer cells. Org Biomol Chem 2018; 15:470-476. [PMID: 27929178 DOI: 10.1039/c6ob02346k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The communication reports a new stereoselective method for the synthesis of a natural acetylenic alcohol, lembehyne B. The key stage of the process uses new cross-cyclomagnesiation reaction of aliphatic and oxygenated 1,2-dienes with Grignard reagents in the presence of a catalytic amount of Cp2TiCl2. A study of the cytotoxic properties of lembehyne B on tumor cell lines using flow cytometry demonstrated that this is a selective inducer of early apoptosis of the Jurkat, HL-60 and K562 cell cultures and hypodiploid (sub-G1) sub-population inducer in cell cycle studies for all cell lines used.
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Affiliation(s)
- Lilya U Dzhemileva
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, 450075, Ufa, Russian Federation. and Department of Immunology and Human Reproductive Health Bashkir State Medical University, Lenin Street, 3, 450003, Ufa, Russian Federation.
| | - Vladimir A D'yakonov
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, 450075, Ufa, Russian Federation.
| | - Aleksey A Makarov
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, 450075, Ufa, Russian Federation.
| | - Evgeny N Andreev
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, 450075, Ufa, Russian Federation.
| | - Milyausha M Yunusbaeva
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, 450075, Ufa, Russian Federation.
| | - Usein M Dzhemilev
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, 450075, Ufa, Russian Federation.
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5
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Orrù G, Demontis C, Mameli A, Tuveri E, Coni P, Pichiri G, Coghe F, Rosa A, Rossi P, D'hallewin G. The Selective Interaction of Pistacia lentiscus Oil vs. Human Streptococci, an Old Functional Food Revisited with New Tools. Front Microbiol 2017; 8:2067. [PMID: 29114245 PMCID: PMC5660700 DOI: 10.3389/fmicb.2017.02067] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 10/09/2017] [Indexed: 11/13/2022] Open
Abstract
Pistacia lentiscus berry oil (LBO) represents a typical vegetal product of the Mediterranean basin that has been formally used in traditional cuisine for 100s of years. In addition to its interesting alimentary properties, this product could represent an interesting candidate in the field of research on the study of new anti-infective agents. In fact, in Mediterranean countries, lentisk oil still continues to be widely used in folk medicine for oral and skin affections, in particular, acute gingivitis, pediatric skin infections such as impetigo and foot plaques, and biofilm related infections often associated with Streptococcus spp. Following these observations, we have hypothesized a “lentisk oil-bacteria” interaction, placing particular emphasis on the different Streptococcal species involved in these oral and skin diseases. In accordance with this hypothesis, the use of standard antimicrobial-antibiofilm methods (MIC, MBC, MBIC) allowed the interesting behavior of these bacteria to be observed and, in this context, the response to lentisk oil appears to be correlated with the pathogenic profile of the considered microorganism. Two probiotic strains of S. salivarius K12/M18 appeared to be non-sensitive to this product, while a set of five different pathogenic strains (S. agalactiae, S. intermedius, S. mitis, S. mutans, S. pyogenes) showed a response that was correlated to the fatty acid metabolic pathway of the considered species. In fact, at different times of bacteria development, selective High Performance Liquid Chromatography analysis of the growth medium containing LBO detected a significant increase in free unsaturated fatty acids (UFAs) in particular oleic, palmitic and linoleic acids, which are already known for their antibacterial activity. In this context, we have hypothesized that LBO could be able to modulate the pathogen/probiotic rate in a Streptococcal population using the fatty acid metabolic pathway to help the probiotic strain. This hypothesis was strengthened by performing antibacterial testing with oleic acid and an in silico evaluation of the Streptococcal MCRA protein, an enzyme involved in the production of saturated fatty acids from UFA. These results show that LBO may have been used in ancient times as a “natural microbial modulating extract” in the prevention of biofilm- associated diseases.
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Affiliation(s)
- Germano Orrù
- Molecular Biology Service, Department of Surgical Sciences, University of Cagliari, Cagliari, Italy
| | - Cristina Demontis
- Molecular Biology Service, Department of Surgical Sciences, University of Cagliari, Cagliari, Italy
| | - Antonello Mameli
- Molecular Biology Service, Department of Surgical Sciences, University of Cagliari, Cagliari, Italy
| | - Enrica Tuveri
- Molecular Biology Service, Department of Surgical Sciences, University of Cagliari, Cagliari, Italy
| | - Pierpaolo Coni
- Department of Surgical Sciences, University of Cagliari, Cagliari, Italy
| | - Giuseppina Pichiri
- Department of Surgical Sciences, University of Cagliari, Cagliari, Italy
| | - Ferdinando Coghe
- University Hospital Laboratory Services, Azienda Ospedaliero-Universitaria di Cagliari, Cagliari, Italy
| | - Antonella Rosa
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Paola Rossi
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Pavia, Italy
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Carballeira NM, Montano N, Morales C, Mooney J, Torres X, Díaz D, Sanabria-Rios DJ. 2-Methoxylated FA Display Unusual Antibacterial Activity Towards Clinical Isolates of Methicillin-Resistant Staphylococcus aureus (CIMRSA) and Escherichia coli. Lipids 2017; 52:535-548. [PMID: 28523480 DOI: 10.1007/s11745-017-4262-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 04/30/2017] [Indexed: 01/28/2023]
Abstract
The naturally occurring (6Z)-(±)-2-methoxy-6-hexadecenoic acid (1) and (6Z)-(±)-2-methoxy-6-octadecenoic acid (2) were synthesized in 7-8 steps with 38 and 13% overall yields, respectively, by using an acetylide coupling approach, which made it possible to obtain a 100% cis-stereochemistry for the double bonds. In a similar fashion, the acetylenic analogs (±)-2-methoxy-6-hexadecynoic acid (3) and (±)-2-methoxy-6-octadecynoic acid (4) were also synthesized in 6-7 steps with 48 and 16% overall yields, respectively. The antibacterial activity of acids 1-4 was determined against clinical isolates of methicillin-resistant Staphylococcus aureus (ClMRSA) and Escherichia coli. Among the series of compounds, acid 4 was the most active bactericide towards CIMRSA displaying IC50s (half maximal inhibitory concentrations) between 17 and 37 μg/mL, in sharp contrast to the 6-octadecynoic acid, which was not bactericidal at all. On the other hand, acids 1 and 3 were the only acids that displayed antibacterial activity towards E. coli, but 1 stood out as the best candidate with an IC50 of 21 μg/mL. The critical micelle concentrations (CMCs) of acids 1-4 were also determined. The C18 acids 2 and 4 displayed a five-fold lower CMC (15-20 μg/mL) than the C16 analogs 1 and 3 (70-100 μg/mL), indicating that 4 exerts its antibacterial activity in a micellar state. None of the studied acids were inhibitory towards S. aureus DNA gyrase discounting this type of enzyme inhibition as a possible antibacterial mechanism. It was concluded that the combination of α-methoxylation and C-6 unsaturation increases the bactericidal activity of the C16 and C18 FA towards the studied bacterial strains. Acids 1 and 4 stand out as viable candidates to be used against E. coli and CIMRSA, respectively.
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Affiliation(s)
- Néstor M Carballeira
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, PO Box 23346, 00931-3346, San Juan, PR, USA.
| | - Nashbly Montano
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, PO Box 23346, 00931-3346, San Juan, PR, USA
| | - Christian Morales
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, PO Box 23346, 00931-3346, San Juan, PR, USA
| | - Joseph Mooney
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, 00919, San Juan, PR, USA
| | - Xiomara Torres
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, 00919, San Juan, PR, USA
| | - Dakeishla Díaz
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, 00919, San Juan, PR, USA
| | - David J Sanabria-Rios
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, 00919, San Juan, PR, USA
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7
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Ti-catalyzed cross-cyclomagnesiation of 1,2-dienes in the stereoselective synthesis of insect pheromones. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.061] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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8
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D'yakonov VA, Makarov AA, Dzhemileva LU, Andreev PEN, Dzhemilev UM. Total Synthesis of Neuritogenic Alkynes: Lembehyne B and Key Intermediate of Lembehyne A. ChemistrySelect 2017. [DOI: 10.1002/slct.201601988] [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)
- Vladimir A. D'yakonov
- Laboratory of Catalytic Synthesis; Institute of Petrochemistry and Catalysis of Russian Academy of Sciences; 141 Prospekt Oktyabrya, Ufa 450075 Russian Federation
| | - Alexey A. Makarov
- Laboratory of Catalytic Synthesis; Institute of Petrochemistry and Catalysis of Russian Academy of Sciences; 141 Prospekt Oktyabrya, Ufa 450075 Russian Federation
| | - Lilya U. Dzhemileva
- Laboratory of Catalytic Synthesis; Institute of Petrochemistry and Catalysis of Russian Academy of Sciences; 141 Prospekt Oktyabrya, Ufa 450075 Russian Federation
- Department of Immunology and Human Reproductive Health; Bashkir State Medical University; Lenin Street, 3 450003 Ufa Russian Federation
| | - PhD Evgeny N. Andreev
- Laboratory of Catalytic Synthesis; Institute of Petrochemistry and Catalysis of Russian Academy of Sciences; 141 Prospekt Oktyabrya, Ufa 450075 Russian Federation
| | - Usein M. Dzhemilev
- Laboratory of Catalytic Synthesis; Institute of Petrochemistry and Catalysis of Russian Academy of Sciences; 141 Prospekt Oktyabrya, Ufa 450075 Russian Federation
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9
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Húmpola MV, Rey MC, Carballeira NM, Simonetta AC, Tonarelli GG. Biological and structural effects of the conjugation of an antimicrobial decapeptide with saturated, unsaturated, methoxylated and branched fatty acids. J Pept Sci 2016; 23:45-55. [PMID: 28025839 DOI: 10.1002/psc.2958] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 11/18/2016] [Accepted: 11/21/2016] [Indexed: 11/09/2022]
Abstract
The increasing bacterial resistance against conventional antibiotics has led to the search for new antimicrobial drugs with different modes of action. Cationic antimicrobial peptides (AMPs) and lipopeptides are promising candidates to treat infections because they act on bacterial membranes causing rapid destruction of sensitive bacteria. In this study, a decapeptide named A2 (IKQVKKLFKK) was conjugated at the N-terminus with saturated, unsaturated, methoxylated and methyl -branched fatty acids of different chain lengths (C8 - C20), the antimicrobial and structural properties of the lipopeptides being then investigated. The attachment of the fatty acid chain significantly improved the antimicrobial activity of A2 against bacteria, and so, endowed it with moderated antifungal activity against yeast strains belonging to genus Candida. Lipopeptides containing hydrocarbon chain lengths between C8 and C14 were the best antibacterial compounds (MIC = 0.7 to 5.8 μM), while the most active compounds against yeast were A2 conjugated with methoxylated and enoic fatty acids (11.1 to 83.3 μM). The improvement in antimicrobial activity was mainly related to the amphipathic secondary structure adopted by A2 lipopeptides in the presence of vesicles that mimic bacterial membranes. Peptide conjugation with long hydrocarbon chains (C12 or more), regardless of their structure, significantly increased toxicity towards eukaryotic cells, resulting in a loss of selectivity. These findings suggest that A2-derived lipopeptides are potential good candidates for the treatment of infectious diseases caused by bacteria and opportunistic pathogenic yeast belonging to genus Candida. Copyright © 2016 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- María Verónica Húmpola
- Departamento de Química Orgánica, Facultad de Bioquímica y Cs. Biológicas, Universidad Nacional del Litoral, UNL. Ciudad Universitaria, Santa Fe, Argentina
| | - María Carolina Rey
- Departamento de Química Orgánica, Facultad de Bioquímica y Cs. Biológicas, Universidad Nacional del Litoral, UNL. Ciudad Universitaria, Santa Fe, Argentina
| | - Nestor M Carballeira
- Department of Chemistry, University of Puerto Rico, PO Box 23346, San Juan, 00931-3346, Puerto Rico
| | - Arturo Carlos Simonetta
- Cátedras de Microbiología y Biotecnología, Departamento de Ingeniería en Alimentos, Facultad de Ingeniería Química, UNL. Santiago del Estero, 2829, Santa Fe, Argentina
| | - Georgina Guadalupe Tonarelli
- Departamento de Química Orgánica, Facultad de Bioquímica y Cs. Biológicas, Universidad Nacional del Litoral, UNL. Ciudad Universitaria, Santa Fe, Argentina
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10
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Adrian J, Stark CBW. Flexible Approach to (5Z
,9Z
)-Dienoic Fatty Acids Relevant to the Synthesis of Demospongic Acids and Related Natural Products. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600746] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Juliane Adrian
- Fachbereich Chemie; Institut für Organische Chemie; Universität Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Christian B. W. Stark
- Fachbereich Chemie; Institut für Organische Chemie; Universität Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
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11
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Fatty Acid Profile, Sterol Composition of Lipids, and Antibacterial Study of the Marine Sponge Psammaplysilla purpurea Collected from the Bay of Bengal (Odisha Coast). Chem Nat Compd 2014. [DOI: 10.1007/s10600-014-1001-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Sanabria-Ríos DJ, Rivera-Torres Y, Maldonado-Domínguez G, Domínguez I, Ríos C, Díaz D, Rodríguez JW, Altieri-Rivera JS, Ríos-Olivares E, Cintrón G, Montano N, Carballeira NM. Antibacterial activity of 2-alkynoic fatty acids against multidrug-resistant bacteria. Chem Phys Lipids 2013; 178:84-91. [PMID: 24365283 DOI: 10.1016/j.chemphyslip.2013.12.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Revised: 12/10/2013] [Accepted: 12/12/2013] [Indexed: 10/25/2022]
Abstract
The first study aimed at determining the structural characteristics needed to prepare antibacterial 2-alkynoic fatty acids (2-AFAs) was accomplished by synthesizing several 2-AFAs and other analogs in 18-76% overall yields. Among all the compounds tested, the 2-hexadecynoic acid (2-HDA) displayed the best overall antibacterial activity against Gram-positive Staphylococcus aureus (MIC=15.6 μg/mL), Staphylococcus saprophyticus (MIC=15.5 μg/mL), and Bacillus cereus (MIC=31.3 μg/mL), as well as against the Gram-negative Klebsiella pneumoniae (7.8 μg/mL) and Pseudomonas aeruginosa (MIC=125 μg/mL). In addition, 2-HDA displayed significant antibacterial activity against methicillin-resistant S. aureus (MRSA) ATCC 43300 (MIC=15.6 μg/mL) and clinical isolates of MRSA (MIC=3.9 μg/mL). No direct relationship was found between the antibacterial activity of 2-AFAs and their critical micelle concentration (CMC) suggesting that the antibacterial properties of these fatty acids are not mediated by micelle formation. It was demonstrated that the presence of a triple bond at C-2 and the carboxylic acid moiety in 2-AFAs are important for their antibacterial activity. 2-HDA has the potential to be further evaluated for use in antibacterial formulations.
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Affiliation(s)
- David J Sanabria-Ríos
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, San Juan, PR 00919, United States.
| | - Yaritza Rivera-Torres
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, San Juan, PR 00919, United States
| | - Gamalier Maldonado-Domínguez
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, San Juan, PR 00919, United States
| | - Idializ Domínguez
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, San Juan, PR 00919, United States
| | - Camille Ríos
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, San Juan, PR 00919, United States
| | - Damarith Díaz
- Faculty of Science and Technology, Inter American University of Puerto Rico, Metropolitan Campus, PO Box 191293, San Juan, PR 00919, United States
| | - José W Rodríguez
- Department of Microbiology and Immunology, Universidad Central del Caribe School of Medicine, PO Box 60327, Bayamón, PR 00960, United States
| | - Joanne S Altieri-Rivera
- Department of Microbiology and Immunology, Universidad Central del Caribe School of Medicine, PO Box 60327, Bayamón, PR 00960, United States
| | - Eddy Ríos-Olivares
- Department of Microbiology and Immunology, Universidad Central del Caribe School of Medicine, PO Box 60327, Bayamón, PR 00960, United States
| | - Gabriel Cintrón
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, PO Box 23346, San Juan, PR 00931-3346, United States
| | - Nashbly Montano
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, PO Box 23346, San Juan, PR 00931-3346, United States
| | - Néstor M Carballeira
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, PO Box 23346, San Juan, PR 00931-3346, United States
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13
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Řezanka T, Sigler K. Odd-numbered very-long-chain fatty acids from the microbial, animal and plant kingdoms. Prog Lipid Res 2009; 48:206-38. [DOI: 10.1016/j.plipres.2009.03.003] [Citation(s) in RCA: 128] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2009] [Revised: 03/17/2009] [Accepted: 03/23/2009] [Indexed: 10/21/2022]
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14
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Cho JY, Gyawali YP, Ahn SH, Khan MNA, Kong IS, Hong YK. A methoxylated fatty acid isolated from the brown seaweed Ishige okamurae inhibits bacterial phospholipase A2. Phytother Res 2008; 22:1070-4. [PMID: 18570268 DOI: 10.1002/ptr.2456] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A methoxylated fatty acid that inhibits phospholipase A(2) (PLA(2); EC 3.1.1.4) was purified from the brown seaweed Ishige okamurae. Approximately 8.1 mg of the inhibitory compound, 7-methoxy-9-methylhexadeca-4,8-dienoic acid, was isolated from 1 kg of I. okamurae powder. Recombinant PLA(2) derived from the pathogenic bacterium Vibrio mimicus was used as the target enzyme. The methoxylated fatty acid compound competitively inhibited PLA(2) with a Ki value of 3.9 microg/mL. The concentrations required for 50% inhibition of PLA(2), oedema and erythema were 1.0 microg/mL, 3.6 mg/mL and 4.6 mg/mL, respectively. The compound strongly inhibited PLA(2) activity in vitro and had potent antiinflammatory activity in vivo.
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Affiliation(s)
- Ji-Young Cho
- Department of Marine Biotechnology, Soonchunhyang University, Asan 336-745, Korea
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15
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Brown LJ, Spurr IB, Kemp SC, Camp NP, Gibson KR, Brown RCD. Total Synthesis of cis-Sylvaticin. Org Lett 2008; 10:2489-92. [DOI: 10.1021/ol800767e] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lynda J. Brown
- School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, United Kingdom, Lilly Research Centre, Erl Wood Manor, Sunninghill Road, Windlesham, Surrey, GU20 6PH, United Kingdom, and Pfizer Limited, Sandwich, Kent, CT13 9NJ, United Kingdom
| | - Ian B. Spurr
- School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, United Kingdom, Lilly Research Centre, Erl Wood Manor, Sunninghill Road, Windlesham, Surrey, GU20 6PH, United Kingdom, and Pfizer Limited, Sandwich, Kent, CT13 9NJ, United Kingdom
| | - Stephen C. Kemp
- School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, United Kingdom, Lilly Research Centre, Erl Wood Manor, Sunninghill Road, Windlesham, Surrey, GU20 6PH, United Kingdom, and Pfizer Limited, Sandwich, Kent, CT13 9NJ, United Kingdom
| | - Nicholas P. Camp
- School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, United Kingdom, Lilly Research Centre, Erl Wood Manor, Sunninghill Road, Windlesham, Surrey, GU20 6PH, United Kingdom, and Pfizer Limited, Sandwich, Kent, CT13 9NJ, United Kingdom
| | - Karl R. Gibson
- School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, United Kingdom, Lilly Research Centre, Erl Wood Manor, Sunninghill Road, Windlesham, Surrey, GU20 6PH, United Kingdom, and Pfizer Limited, Sandwich, Kent, CT13 9NJ, United Kingdom
| | - Richard C. D. Brown
- School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, United Kingdom, Lilly Research Centre, Erl Wood Manor, Sunninghill Road, Windlesham, Surrey, GU20 6PH, United Kingdom, and Pfizer Limited, Sandwich, Kent, CT13 9NJ, United Kingdom
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Carballeira NM, Miranda C, Orellano EA, González FA. Synthesis of a novel series of 2-methylsulfanyl fatty acids and their toxicity on the human K-562 and U-937 leukemia cell lines. Lipids 2006; 40:1063-8. [PMID: 16382579 PMCID: PMC1618881 DOI: 10.1007/s11745-005-1470-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The hitherto unknown 2-methylsulfanyldecanoic acid and 2-methylsulfanyldodecanoic acid were synthesized from methyl decanoate and methyl dodecanoate, respectively, through the reaction of lithium diisopropylamide and dimethyldisulfide in THF followed by saponification with potassium hydroxide in ethanol. Both alpha-methylsulfanylated FA were cytotoxic to the human chronic myelogenous leukemia K-562 and the human histiocytic lymphoma U-937 cell lines with EC50 values in the 200-300 microM range, which makes them more cytotoxic to these cell lines than decanoic and/or dodecanoic acid. The cytotoxicity of the studied FA toward K-562 followed the order 2-SCH3-12:0 > 2-SCH3-10:0 > 10:0 > 12:0 > 2-OCH3-12:0, whereas toward U-937 the cytotoxicity was 2-SCH3-10:0 > 2-SCH3-12:0 > 12:0 > 10:0 > 2-OCH3-12:0. These results indicate that the alpha-methylsulfanyl substitution increases the cytotoxicity of the C10 and C12 FA toward the studied leukemia cell lines.
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Bergé JP, Barnathan G. Fatty acids from lipids of marine organisms: molecular biodiversity, roles as biomarkers, biologically active compounds, and economical aspects. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2005; 96:49-125. [PMID: 16566089 DOI: 10.1007/b135782] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Because of their characteristic living environments, marine organisms produce a variety of lipids. Fatty acids constitute the essential part of triglycerides and wax esters, which are the major components of fats and oils. Nevertheless, phospholipids and glycolipids have considerable importance and will be taken into account, especially the latter compounds that excite increasing interest regarding their promising biological activities. Thus, in addition to the major polyunsaturated fatty acids (PUFA) such as eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids, a great number of various fatty acids occur in marine organisms, e.g. saturated, mono- and diunsaturated, branched, halogenated, hydroxylated, methoxylated, non-methylene-interrupted. Various unprecedented chemical structures of fatty acids, and lipid-containing fatty acids, have recently been discovered, especially from the most primitive animals such as sponges and gorgonians. This review of marine lipidology deals with recent advances in the field of fatty acids since the end of the 1990s. Different approaches will be followed, mainly developing biomarkers of trophic chains in marine ecosystems and of chemotaxonomic interest, reporting new structures, especially those with biological activities or biosynthetic interest. An important part of this review will be devoted to the major PUFA, their relevance to health and nutrition, their biosynthesis, their sources (usual and promising) and market.
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Affiliation(s)
- Jean-Pascal Bergé
- Centre de Nantes, Laboratoire Génie Alimentaire, Département Valorisation des Produits, Institut Français pour l'Exploitation de la Mer (IFREMER), BP21105, 44311 Nantes 03, France.
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Carballeira NM, Cruz H, Kwong CD, Wan B, Franzblau S. 2-Methoxylated fatty acids in marine sponges: Defense mechanism against mycobacteria? Lipids 2004; 39:675-80. [PMID: 15588025 DOI: 10.1007/s11745-004-1281-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
A series of saturated 2-methoxylated FA having even-numbered chains with 8-14 carbons were synthesized, and their spectroscopic data are presented for the first time. The 2-methoxylated C10-C14 acids were prepared from the corresponding 2-hydroxylated FA, whereas the 2-methoxyoctanoic acid was synthesized starting with heptaldehyde. All of the methoxylated FA displayed some degree of inhibition (between 2 and 99%) of Mycobacterium tuberculosis H(37)Rv at 6.25 microg/mL. The most inhibitory FA was 2-methoxydecanoic acid, with a minimum inhibitory concentration of 200-239 microM against M. tuberculosis H(37)Rv as determined by both the microplate Alamar Blue assay and the green fluorescent protein microplate assay. These results are discussed in terms of the possible role of the 2-methoxylated FA as antimicrobial lipids produced either by marine sponges, or the associated marine symbiotic bacteria, as a defense mechanism in a highly competitive environment.
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Abstract
Methoxylated lipids have been reviewed emphasizing the alkylglycerol ethers and fatty acids bearing the methoxy group in the alkyl chain. The literature on methoxylated lipids and their derivatives has been divided into four main groups, namely 2-methoxylated alkyl glycerols, omega-methoxylated fatty acids, mid-chain methoxylated fatty acids, and alpha-methoxylated fatty acids. The natural occurrence, biological activity, and synthesis of this interesting group of lipids are discussed. Most of these compounds have been isolated from either bacterial or marine sources, but others are mainly of synthetic origin. Among the interesting biological activities displayed by these compounds the most important are antibacterial, antifungal, antitumor, and antiviral.
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Affiliation(s)
- N M Carballeira
- Department of Chemistry, University of Puerto Rico, PO Box 23346, San Juan, Puerto Rico 00931-3346.
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Abstract
The delta6 monoenoic methoxylated FA (6Z)-2-methoxy-6-heptadecenoic acid and (6Z)-2-methoxy-6-octadecenoic acid were identified for the first time in nature in the phospholipids from the uncommon Caribbean sponge Spheciospongia cuspidifera. These findings expand the occurrence of A6 2-methoxylated FA to C17-C18 chain lengths and establish a new FA biosynthetic possibility for these marine organisms. The novel methoxylated FA also could have originated from the phospholipids of a bacterium in symbiosis with the sponge.
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Carballeira NM, Emiliano A, Guzmán A. Facile syntheses for (5Z,9Z)-5,9-hexadecadienoic acid, (5Z,9Z)-5,9-nonadecadienoic acid, and (5Z,9Z)-5,9-eicosadienoic acid through a common synthetic route. Chem Phys Lipids 1999; 100:33-40. [PMID: 10640193 DOI: 10.1016/s0009-3084(99)00034-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The delta 5,9 fatty acids (5Z,9Z)-5,9-hexadecadienoic acid, (5Z,9Z)-5,9-nonadecadienoic acid, and (5Z,9Z)-5,9-eicosadienoic acid were synthesized for the first time in four steps (9-12% overall yield) starting from commercially available 2-(2-bromoethyl)-1,3-dioxolane. The synthetic approach provided enough material to corroborate the structure and stereochemistry of (5Z,9Z)-5,9-nonadecadienoic acid which was recently identified in the flowers of Malvaviscus arboreus (Malvaceae). The novel phospholipids 1-hexadecanoyl-2-[(5Z,9Z)-5,9-eicosadienoyl]-sn-glycer o-3-phosphocholine and 1-octadecanoyl-2-[(5Z,9Z)-5,9-eicosadienoyl]-sn- glycero-3-phosphocholine were also synthesized from commercially available L-alpha-phosphatidylcholine (egg yolk) and characterized by positive ion electrospray mass spectrometry. These are the first examples of unsymmetrical phospholipids with saturated fatty acids at the sn-1 position and delta 5,9 fatty acids at the sn-2 position.
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Affiliation(s)
- N M Carballeira
- Department of Chemistry, University of Puerto Rico, San Juan, Puerto Rico.
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