1
|
Martin ALAR, Pereira RLS, Rocha JE, Farias PAM, Freitas TS, Caldas FRDL, Figueredo FG, Sampaio NFL, Oliveira-Tintino CDDM, Tintino SR, da Hora GCA, Lima MCP, de Menezes IRA, Carvalho DT, Coutinho HDM, Fonteles MMF. Unlocking bacterial defense: Exploring the potent inhibition of NorA efflux pump by coumarin derivatives in Staphylococcus aureus. Microb Pathog 2024; 190:106608. [PMID: 38503396 DOI: 10.1016/j.micpath.2024.106608] [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: 11/24/2023] [Revised: 02/27/2024] [Accepted: 03/03/2024] [Indexed: 03/21/2024]
Abstract
The occurrence of bacterial resistance has been increasing, compromising the treatment of various infections. The high virulence of Staphylococcus aureus allows for the maintenance of the infectious process, causing many deaths and hospitalizations. The MepA and NorA efflux pumps are transporter proteins responsible for expelling antimicrobial agents such as fluoroquinolones from the bacterial cell. Coumarins are phenolic compounds that have been studied for their diverse biological actions, including against bacteria. A pharmacokinetic in silico characterization of compounds C10, C11, C13, and C14 was carried out according to the principles of Lipinski's Rule of Five, in addition to searching for similarity in ChemBL and subsequent search for publications in CAS SciFinder. All compounds were evaluated for their in vitro antibacterial and modulatory activity against standard and multidrug-resistant Gram-positive and Gram-negative strains. The effect of coumarins C9, C10, C11, C13, and C14 as efflux pump inhibitors in Staphylococcus aureus strains was evaluated using the microdilution method (MepA or NorA) and fluorimetry (NorA). The behavior of coumarins regarding the efflux pump was determined from their interaction properties with the membrane and coumarin-protein using molecular docking and molecular dynamics simulations. Only the isolated coumarin compound C13 showed antibacterial activity against standard strains of Staphylococcus aureus and Escherichia coli. However, the other tested coumarins showed modulatory capacity for fluoroquinolone and aminoglycoside antibacterials. Compounds C10, C13, and C14 were effective in reducing the MIC of both antibiotics for both multidrug-resistant strains, while C11 potentiated the effect of norfloxacin and gentamicin for Gram-positive and Gram-negative bacteria and only norfloxacin for Gram-negative. Only coumarin C14 produced synergistic effects when associated with ciprofloxacin in MepA-carrying strains. All tested coumarins have the ability to inhibit the NorA efflux pump present in Staphylococcus aureus, both in reducing the MIC and inducing increased ethidium bromide fluorescence emission in fluorimetry. The findings of this study offer an atomistic perspective on the potential of coumarins as active inhibitors of the NorA pump, highlighting their specific mode of action mainly targeting protein inhibition. In molecular docking, it was observed that coumarins are capable of interacting with various amino acid residues of the NorA pump. The simulation showed that coumarin C10 can cross the bilayer; however, the other coumarins interacted with the membrane but were unable to cross it. Coumarins demonstrated their potentiating role in the effect of norfloxacin through a dual mechanism: efflux pump inhibition through direct interaction with the protein (C9, C10, C11, and C13) and increased interaction with the membrane (C10 and C13). In the context of pharmacokinetic prediction studies, the studied structures have a suitable chemical profile for possible oral use. We suggest that coumarin derivatives may be an interesting alternative in the future for the treatment of resistant bacterial infections, with the possibility of a synergistic effect with other antibacterials, although further studies are needed to characterize their therapeutic effects and toxicity.
Collapse
Affiliation(s)
- Ana Luíza A R Martin
- Department of Physiology and Pharmacology, Federal University of Ceará - UFC, 60430-160, Fortaleza, Brazil; Department of Biological Chemistry, Regional University of Cariri - URCA. 63105-000, Crato, Brazil; School of Medicine, Medical Education Institute - IDOMED, 63048-080, Juazeiro do Norte, Brazil
| | | | - Janaína Esmeraldo Rocha
- Department of Biological Chemistry, Regional University of Cariri - URCA. 63105-000, Crato, Brazil
| | - Pablo A M Farias
- School of Medicine, Medical Education Institute - IDOMED, 63048-080, Juazeiro do Norte, Brazil; CECAPE College, 63024-015, Juazeiro do Norte, Brazil
| | - Thiago S Freitas
- Department of Biological Chemistry, Regional University of Cariri - URCA. 63105-000, Crato, Brazil
| | | | - Fernando G Figueredo
- Department of Biological Chemistry, Regional University of Cariri - URCA. 63105-000, Crato, Brazil; School of Medicine, Medical Education Institute - IDOMED, 63048-080, Juazeiro do Norte, Brazil
| | - Nadghia Figueiredo Leite Sampaio
- Department of Biological Chemistry, Regional University of Cariri - URCA. 63105-000, Crato, Brazil; School of Medicine, Medical Education Institute - IDOMED, 63048-080, Juazeiro do Norte, Brazil
| | | | - Saulo Relison Tintino
- Department of Biological Chemistry, Regional University of Cariri - URCA. 63105-000, Crato, Brazil
| | | | | | - Irwin Rose A de Menezes
- Department of Biological Chemistry, Regional University of Cariri - URCA. 63105-000, Crato, Brazil
| | - Diogo T Carvalho
- School of Pharmacy, Federal University of Alfenas - UNIFAL, 37130-001, Alfenas, Brazil
| | - Henrique D M Coutinho
- Department of Biological Chemistry, Regional University of Cariri - URCA. 63105-000, Crato, Brazil.
| | - Marta M F Fonteles
- Department of Physiology and Pharmacology, Federal University of Ceará - UFC, 60430-160, Fortaleza, Brazil
| |
Collapse
|
2
|
Leal ALAB, da Silva MC, Silva AKFE, de Souza Mesquita AB, Bezerra CF, Dotto ARF, do Amaral W, de Araujo Abi-chacra É, da Silva LE, Barreto HM, dos Santos HS. Chemical composition of Piper gaudichaudianum Kunth essential oil and evaluation of its antimicrobial and modulatory effects on antibiotic resistance, antibiofilm, and cell dimorphism inhibitory activities. 3 Biotech 2023; 13:255. [PMID: 37396469 PMCID: PMC10310684 DOI: 10.1007/s13205-023-03681-1] [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: 02/21/2023] [Accepted: 06/21/2023] [Indexed: 07/04/2023] Open
Abstract
Essential oils extracted from many plant species have different biological activities, among which microbial activity stands out. Species of the genus Piper have antimicrobial potential against different species of bacteria and fungi. In this sense, the present study aimed to determine the chemical composition of the essential oil from the leaves of Piper gaudichaudianum (EOPG), as well as to investigate their antimicrobial activity and their modulatory effect on the Norfloxacin resistance in the Staphylococcus aureus SA1199B strain overproducer of the NorA efflux pump. Furthermore, their inhibitory activities on the biofilm formation as well as on the cellular differentiation of C. albicans were evaluated. Gas chromatography analysis identified 24 compounds, such as hydrocarbon sesquiterpenes (54.8%) and oxygenated sesquiterpenes (28.5%). To investigate the antimicrobial potential of EOPG against S. aureus, E. coli, and C. albicans, a microdilution assay was performed, and no intrinsic antimicrobial activity was observed. On the other hand, the oil potentiated the activity of Norfloxacin against the SA1199B strain, indicating that EOPG could be used in association with Norfloxacin against S. aureus strains resistant to this antibiotic. EOPG also inhibited S. aureus biofilm formation, as evidenced by the crystal violet assay. In the dimorphism assay, EOPG was able to inhibit the cell differentiation process in C. albicans. Results indicate that EOPG could be used in association with Norfloxacin in the treatment of infections caused by resistant S. aureus strains overproducing the NorA efflux pump. Furthermore, its ability to inhibit the formation of hyphae by C. albicans suggests that EOPG could also be applied in the prevention and/or treatment of fungal infections.
Collapse
Affiliation(s)
- Antonio Linkoln Alves Borges Leal
- Department of Biological Chemistry, Regional University of Cariri, Crato, CE Brazil
- Department of Parasitology and Microbiology, Laboratory of Research in Microbiology, Federal University of Piauí, Teresina, PI Brazil
| | - Matheus Carvalho da Silva
- Department of Parasitology and Microbiology, Laboratory of Research in Microbiology, Federal University of Piauí, Teresina, PI Brazil
| | - Andressa Kelly Ferreira e Silva
- Department of Parasitology and Microbiology, Laboratory of Research in Microbiology, Federal University of Piauí, Teresina, PI Brazil
| | - Avilnete Belem de Souza Mesquita
- Department of Parasitology and Microbiology, Laboratory of Research in Microbiology, Federal University of Piauí, Teresina, PI Brazil
| | - Camila Fonseca Bezerra
- Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife, PE Brazil
| | - Ana Rafaela Freitas Dotto
- Postgraduate Programme in Sustainable Territorial, Federal University of Paraná, Matinhos, PR Brazil
| | - Wanderlei do Amaral
- Department of Chemical Engineering, Federal University of Paraná, Curitiba, PR Brazil
| | - Érika de Araujo Abi-chacra
- Department of Parasitology and Microbiology, Laboratory of Research in Microbiology, Federal University of Piauí, Teresina, PI Brazil
| | - Luiz Everson da Silva
- Postgraduate Programme in Sustainable Territorial, Federal University of Paraná, Matinhos, PR Brazil
| | - Humberto Medeiros Barreto
- Department of Parasitology and Microbiology, Laboratory of Research in Microbiology, Federal University of Piauí, Teresina, PI Brazil
| | - Hélcio Silva dos Santos
- Department of Biological Chemistry, Regional University of Cariri, Crato, CE Brazil
- Center for Exact Sciences and Technology, Vale Do Acarau State University, Sobral, CE Brazil
- Graduate Program in Natural Sciences, Natural Products Chemistry Laboratory, State University of Ceará, Fortaleza, CE Brazil
| |
Collapse
|
3
|
Ribeiro FP, Santana de Oliveira M, de Oliveira Feitosa A, Santana Barbosa Marinho P, Moacir do Rosario Marinho A, de Aguiar Andrade EH, Favacho Ribeiro A. Chemical Composition and Antibacterial Activity of the Lippia origanoides Kunth Essential Oil from the Carajás National Forest, Brazil. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:9930336. [PMID: 34712353 PMCID: PMC8548111 DOI: 10.1155/2021/9930336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/23/2021] [Accepted: 10/07/2021] [Indexed: 11/24/2022]
Abstract
Species of the genus Lippia are rich in essential oils and have shown antibacterial properties, which may be related to oils' chemical composition. The present work aimed to evaluate the antimicrobial potential of Lippia origanoides Kunth against two bacteria strains: Escherichia coli and Staphylococcus aureus. Leaf essential oils were obtained by hydrodistillation in a modified Clevenger-type apparatus, and their chemical composition was determined by gas chromatography coupled to mass spectrometry (GC/MS) and flame ionization detection (GC/FID). We identified 28 compounds, representing 98.87% of the total concentration of the essential oil. The compounds identified at the highest concentrations were 1,8-cineole (35.04%), carvacrol (11.32%), p-cymene (8.53%), α-pinene (7.17%), and γ-terpinene (7.16%). The leaf essential oil of L. origanoides showed antibacterial action on biological isolates of Escherichia coli and Staphylococcus aureus. For Escherichia coli, the oil presented bactericidal action at concentrations of 5-20 μL/mL. Regarding Staphylococcus aureus, the bactericidal effect was noted at 20 μL/mL and the bacteriostatic action was noted around 2.5-10 μL/mL. Given the results obtained, L. origanoides essential oil showed promising biological potential against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria, thus encouraging further studies on substances isolated from this species to contribute to the development of new antimicrobial drugs.
Collapse
Affiliation(s)
- Fabiana Paiva Ribeiro
- Faculty of Chemistry, Federal University of Pará, Ananindeua Campus, Tv. We Vinte e Seis, 2, Coqueiro, Ananindeua, Portugal 67130-660, Brazil
| | - Mozaniel Santana de Oliveira
- Adolpho Ducke Laboratory, Botany Coordination, Emílio Goeldi Museum, Av. Perimetral, 1901, Terra Firme, Belém, Portugal 66077-830, Brazil
| | - André de Oliveira Feitosa
- Faculty of Chemistry, Federal University of Pará, R. Augusto Corrêa, 01-Guamá, Belém, Portugal 66075-110, Brazil
| | | | | | - Eloisa Helena de Aguiar Andrade
- Adolpho Ducke Laboratory, Botany Coordination, Emílio Goeldi Museum, Av. Perimetral, 1901, Terra Firme, Belém, Portugal 66077-830, Brazil
- Faculty of Chemistry, Federal University of Pará, R. Augusto Corrêa, 01-Guamá, Belém, Portugal 66075-110, Brazil
| | - Alcy Favacho Ribeiro
- Faculty of Chemistry, Federal University of Pará, Ananindeua Campus, Tv. We Vinte e Seis, 2, Coqueiro, Ananindeua, Portugal 67130-660, Brazil
| |
Collapse
|
4
|
Soulaimani B, Hidar NE, Ben El Fakir S, Mezrioui N, Hassani L, Abbad A. Combined antibacterial activity of essential oils extracted from Lavandula maroccana (Murb.), Thymus pallidus Batt. and Rosmarinus officinalis L. against antibiotic-resistant Gram-negative bacteria. Eur J Integr Med 2021. [DOI: 10.1016/j.eujim.2021.101312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
5
|
Pinto ÂV, de Oliveira JC, Costa de Medeiros CA, Silva SL, Pereira FO. Potentiation of antifungal activity of terbinafine by dihydrojasmone and terpinolene against dermatophytes. Lett Appl Microbiol 2020; 72:292-298. [PMID: 32790923 DOI: 10.1111/lam.13371] [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: 07/02/2020] [Revised: 07/24/2020] [Accepted: 08/10/2020] [Indexed: 11/30/2022]
Abstract
Dermatophytoses are infections that affect keratinized tissues. Their main etiologic agents are fungi of the genera Microsporum and Trichophyton. The emergence of resistant fungi and the clinical relevance of dermatophytosis have encouraged studies that aim to increase the arsenal of drugs or act on mechanisms that confer multiple drug resistance. This study investigated the modulating activity of terbinafine promoted by dihydrojasmone and terpinolene against Microsporum canis LM 216, Trichophyton interdigitale H6 and T. interdigitale Δmdr2. The minimum inhibitory concentration (MIC) of test drugs was determined by broth microdilution. The effect of the drugs tested on plasma membrane functionality was analysed. Terbinafine MIC was determined in sub-inhibitory concentrations of monoterpenes. Finally, it was performed an association study with terbinafine and monoterpenes. Dihydrojasmone presented lower MIC values than terpinolene. All fungi were sensitive to terbinafine, starting at 1 μg ml-1 . All tested drugs increased K+ release (P < 0·05), affecting the functionality of the plasma membrane. Dihydrojasmone modulated the sensitivity of all strains against terbinafine, and terpinolene modulated the sensitivity of M. canis LM 216 and T. interdigitale Δmdr2. The monoterpenes and terbinafine drug associations presented synergism. In conclusion, the results suggest that the dihydrojasmone and terpinolene are promising antifungal agents that potentiate the antifungal activity of terbinafine against dermatophytes.
Collapse
Affiliation(s)
- Â V Pinto
- Biochemistry Laboratory, Academic Unit of Health, Education and Health Center, Federal University of Campina Grande, Cuité, Brazil
| | - J C de Oliveira
- Biochemistry Laboratory, Academic Unit of Health, Education and Health Center, Federal University of Campina Grande, Cuité, Brazil
| | - C A Costa de Medeiros
- Biochemistry Laboratory, Academic Unit of Health, Education and Health Center, Federal University of Campina Grande, Cuité, Brazil
| | - S L Silva
- Graduate Program in Natural and Bioactive Synthetic Products, Pharmaceutical Sciences Department, Federal University of Paraiba, Paraíba, Brazil
| | - F O Pereira
- Biochemistry Laboratory, Academic Unit of Health, Education and Health Center, Federal University of Campina Grande, Cuité, Brazil
| |
Collapse
|
6
|
Pereira AV, Góis MB, Azevêdo TKB, Ferraz FN, Vieira SLV, Cavalcanti-Dantas VM, Pereira JV, Rodrigues OG, Pereira MDSV. Effects of associations of tannins from Anacardium occidentale and Anadenanthera colubrina with cephalosporin against bovine Staphylococcus aureus isolates. ARQUIVOS DO INSTITUTO BIOLÓGICO 2018. [DOI: 10.1590/1808-1657000582016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT: The association of natural compounds isolated from medicinal plants with conventional antibiotics, both with similar mechanisms of action, have become a viable alternative strategy to overcome the problem of drug resistance. This study aimed to evaluate the in vitro antimicrobial activity of tannic substances present in the bark of Anacardium occidentale and Anadenanthera colubrina against samples of Staphylococcus aureus when in combination with cephalexin. These combinations were evaluated by determining the minimum inhibitory concentration (MIC). For this purpose, tannins and cephalexin were serially dissolved in distilled water at concentrations ranging from 0.976 mg/mL to 500 mg/mL and 2 mg/mL to 512 mg/mL, respectively. When combined, the compounds inhibited S. aureus growth forming halos ranging from 0.9 to 46 mm with an MIC of 7.8 mg/mL (tannins) and 4 µg/mL (cephalexin). The resulting effect of the combination of natural and synthetic substances with similar mechanisms of action presented better results than when tested alone. Thus, the conclusion is that both the tannins and cephalexin had their antimicrobial action enhanced when used in combination, enabling the use of lower concentrations while maintaining their antibacterial effect against strains of S. aureus.
Collapse
|
7
|
de Souza RC, da Costa MM, Baldisserotto B, Heinzmann BM, Schmidt D, Caron BO, Copatti CE. Antimicrobial and synergistic activity of essential oils of Aloysia triphylla and Lippia alba against Aeromonas spp. Microb Pathog 2017; 113:29-33. [DOI: 10.1016/j.micpath.2017.10.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 09/29/2017] [Accepted: 10/12/2017] [Indexed: 10/18/2022]
|
8
|
da Silva AP, Silva NDF, Andrade EHA, Gratieri T, Setzer WN, Maia JGS, da Silva JKR. Tyrosinase inhibitory activity, molecular docking studies and antioxidant potential of chemotypes of Lippia origanoides (Verbenaceae) essential oils. PLoS One 2017; 12:e0175598. [PMID: 28459864 PMCID: PMC5411033 DOI: 10.1371/journal.pone.0175598] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Accepted: 03/28/2017] [Indexed: 11/19/2022] Open
Abstract
The essential oils (EOs) of the aerial parts of Lippia origanoides (LiOr), collected in different localities of the Amazon region, were obtained by hydrodistillation and analyzed by GC and CG-MS. Principle component analysis (PCA) based on chemical composition grouped the oils in four chemotypes rich in mono- and sesquiterpenoids. Group I was characterized by 1,8-cineole and α-terpineol (LiOr-1 and LiOr-4) and group II by thymol (LiOr-2). The oil LiOr-3 showed β-caryophyllene, α-phellandrene and β-phellandrene as predominant and LiOr-5 was rich in (E)-nerolidol and β-caryophyllene. All samples were evaluated for antioxidant activity and inhibition of tyrosinase in vitro and in silico. The highest antioxidant activity by the DPPH free radical method was observed in LiOr-2 and LiOr-5 oils (132.1 and 82.7 mg TE∙mL-1, respectively). The tyrosinase inhibition potential was performed using L-tyrosine and L-DOPA as substrates and all samples were more effective in the first step of oxidation. The inhibition by samples LiOr-2 and LiOr-4 were 84.7% and 62.6%, respectively. The samples LiOr-1, LiOr-4 and LiOr-5 displayed an interaction with copper (II) ion with bathochromic shift around 15 nm. In order to elucidate the mechanism of inhibition of the main compounds, a molecular docking study was carried out. All compounds displayed an interaction between an oxygen and Cu or histidine residues with distances less than 4 Å. The best docking energies were observed with thymol and (E)-nerolidol (-79.8 kcal.mol-1), which suggested H-bonding interactions with Met281 and His263 (thymol) and His259, His263 ((E)-nerolidol).
Collapse
Affiliation(s)
- Alessandra P. da Silva
- Programa de Pós-Graduação em Biotecnologia, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Natália de F. Silva
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pará, Belém, Pará, Brazil
| | | | - Tais Gratieri
- Laboratory of Food, Drug and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, Brasília, Distrito Federal, Brazil
| | - William N. Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, Alabama, United States of America
| | - José Guilherme S. Maia
- Programa de Pós-Graduação em Recursos Naturais da Amazônia, Universidade Federal do Oeste do Pará, Santarém, Pará, Brazil
| | - Joyce Kelly R. da Silva
- Programa de Pós-Graduação em Biotecnologia, Universidade Federal do Pará, Belém, Pará, Brazil
- * E-mail:
| |
Collapse
|
9
|
Coêlho ML, Ferreira JHL, de Siqueira Júnior JP, Kaatz GW, Barreto HM, de Carvalho Melo Cavalcante AA. Inhibition of the NorA multi-drug transporter by oxygenated monoterpenes. Microb Pathog 2016; 99:173-177. [PMID: 27565089 DOI: 10.1016/j.micpath.2016.08.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 08/20/2016] [Accepted: 08/22/2016] [Indexed: 12/16/2022]
Abstract
The aim of this study was to investigate intrinsic antimicrobial activity of three monoterpenes nerol, dimethyl octanol and estragole, against bacteria and yeast strains, as well as, investigate if these compounds are able to inhibit the NorA efflux pump related to fluoroquinolone resistance in Staphylococcus aureus. Minimal inhibitory concentrations (MICs) of the monoterpenes against Staphylococcus aureus, Escherichia coli and Candida albicans strains were determined by micro-dilution assay. MICs of the norfloxacin against a S. aureus strain overexpressing the NorA protein were determined in the absence or in the presence of the monoterpenes at subinhibitory concentrations, aiming to verify the ability of this compounds act as efflux pump inhibitors. The monoterpenes were inactive against S. aureus however the nerol was active against E. coli and C. albicans. The addition of the compounds to growth media at sub-inhibitory concentrations enhanced the activity of norfloxacin against S. aureus SA1199-B. This result shows that bioactives tested, especially the nerol, are able to inhibit NorA efflux pump indicating a potential use as adjuvants of norfloxacin for therapy of infections caused by multi-drug resistant S. aureus strains.
Collapse
Affiliation(s)
- Mayara Ladeira Coêlho
- Laboratory of Toxicology Genetic Research, Federal University of Piauí, Teresina, Piauí, Brazil
| | | | | | - Glenn W Kaatz
- The John D. Dingell Department of Veteran's Affairs Medical Center, Detroit, MI, USA; Department of Internal Medicine, Division of Infectious Diseases, Wayne State University, Detroit, MI, USA
| | | | | |
Collapse
|
10
|
Borges A, Abreu AC, Dias C, Saavedra MJ, Borges F, Simões M. New Perspectives on the Use of Phytochemicals as an Emergent Strategy to Control Bacterial Infections Including Biofilms. Molecules 2016; 21:molecules21070877. [PMID: 27399652 PMCID: PMC6274140 DOI: 10.3390/molecules21070877] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 06/28/2016] [Accepted: 06/29/2016] [Indexed: 02/07/2023] Open
Abstract
The majority of current infectious diseases are almost untreatable by conventional antibiotic therapy given the advent of multidrug-resistant bacteria. The degree of severity and the persistence of infections are worsened when microorganisms form biofilms. Therefore, efforts are being applied to develop new drugs not as vulnerable as the current ones to bacterial resistance mechanisms, and also able to target bacteria in biofilms. Natural products, especially those obtained from plants, have proven to be outstanding compounds with unique properties, making them perfect candidates for these much-needed therapeutics. This review presents the current knowledge on the potentialities of plant products as antibiotic adjuvants to restore the therapeutic activity of drugs. Further, the difficulties associated with the use of the existing antibiotics in the treatment of biofilm-related infections are described. To counteract the biofilm resistance problems, innovative strategies are suggested based on literature data. Among the proposed strategies, the use of phytochemicals to inhibit or eradicate biofilms is highlighted. An overview on the use of phytochemicals to interfere with bacterial quorum sensing (QS) signaling pathways and underlying phenotypes is provided. The use of phytochemicals as chelating agents and efflux pump inhibitors is also reviewed.
Collapse
Affiliation(s)
- Anabela Borges
- LEPABE, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, Porto 4200-465, Portugal.
- CIQUP, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, Porto 4169-007, Portugal.
- CECAV-Veterinary and Animal Science Research Center, Department of Veterinary Science, University of Trás-os-Montes e Alto Douro, Apartado 1013, Vila Real 5001-801, Portugal.
| | - Ana Cristina Abreu
- LEPABE, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, Porto 4200-465, Portugal.
- CECAV-Veterinary and Animal Science Research Center, Department of Veterinary Science, University of Trás-os-Montes e Alto Douro, Apartado 1013, Vila Real 5001-801, Portugal.
| | - Carla Dias
- LEPABE, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, Porto 4200-465, Portugal.
- CECAV-Veterinary and Animal Science Research Center, Department of Veterinary Science, University of Trás-os-Montes e Alto Douro, Apartado 1013, Vila Real 5001-801, Portugal.
| | - Maria José Saavedra
- CECAV-Veterinary and Animal Science Research Center, Department of Veterinary Science, University of Trás-os-Montes e Alto Douro, Apartado 1013, Vila Real 5001-801, Portugal.
| | - Fernanda Borges
- CIQUP, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, Porto 4169-007, Portugal.
| | - Manuel Simões
- LEPABE, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, Porto 4200-465, Portugal.
| |
Collapse
|
11
|
Chaves TP, Fernandes FHA, Santana CP, Santos JS, Medeiros FD, Felismino DC, Santos VL, Catão RMR, Coutinho HDM, Medeiros ACD. Evaluation of the Interaction between the Poincianella pyramidalis (Tul.) LP Queiroz Extract and Antimicrobials Using Biological and Analytical Models. PLoS One 2016; 11:e0155532. [PMID: 27192209 PMCID: PMC4871567 DOI: 10.1371/journal.pone.0155532] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 04/29/2016] [Indexed: 12/29/2022] Open
Abstract
Poincianella pyramidalis (Tul.) LP Queiroz (Fabaceae) is an endemic tree of northeastern Brazil, occurring mainly in the Caatinga. Its medicinal use is widespread and is an important therapeutic option against diarrhea, dysentery, and respiratory and urinary infections, among other diseases. In this study we determined the chemical marker and evaluated the interaction between P. pyramidalis extract and a commercial antimicrobial through the use of biological and analytical models. To obtain the extract, an ethanol-water mixture (50:50 v/v) was used as solvent. It was nebulized in a spray dryer using colloidal silicon dioxide as a drying adjuvant. The extract (ENPp) was subjected to HPLC analysis to verify the presence of certain secondary metabolites. The Minimum Inhibitory Concentration (MIC) of the extract against Gram-negative bacteria was determined by broth microdilution and the MIC of synthetic antimicrobial drugs in the presence and absence of the extract. The antioxidant activity of ENPp was evaluated by the DPPH method. The compatibility between the antimicrobial and the extract was evaluated by thermal analysis (TG/DTA). The acute toxicity of the extract was evaluated in vivo in rodents. The results indicate significant additive action of the extract on synthetic antibiotics, considerable antioxidant activity and absence of toxicity. This extract shows high potential for the development of formulations for antimicrobial therapy when used with a vegetable-active ingredient.
Collapse
Affiliation(s)
- Thiago P. Chaves
- Laboratory of drug assay and development, Universidade Estadual da Paraíba, Campina Grande, Paraíba, Brazil
- Department of Natural Sciences, Universidade Federal do Piauí, Bom Jesus, Piauí, Brazil
| | - Felipe Hugo A. Fernandes
- Laboratory of drug assay and development, Universidade Estadual da Paraíba, Campina Grande, Paraíba, Brazil
- School of Pharmaceutical Sciences, Universidade Estadual Paulista, Araraquara, São Paulo, Brazil
| | - Cleildo P. Santana
- Laboratory of drug assay and development, Universidade Estadual da Paraíba, Campina Grande, Paraíba, Brazil
| | - Jocimar S. Santos
- Laboratory of drug assay and development, Universidade Estadual da Paraíba, Campina Grande, Paraíba, Brazil
| | - Francinalva D. Medeiros
- Laboratory of drug assay and development, Universidade Estadual da Paraíba, Campina Grande, Paraíba, Brazil
| | - Délcio C. Felismino
- Laboratory of drug assay and development, Universidade Estadual da Paraíba, Campina Grande, Paraíba, Brazil
| | - Vanda L. Santos
- Laboratory of Pharmacology, Universidade Estadual da Paraíba, Campina Grande, Paraíba, Brazil
| | - Raïssa Mayer R. Catão
- Laboratory of Research in Microbiology, Universidade Estadual da Paraíba, Campina Grande, Paraíba, Brazil
| | | | - Ana Cláudia D. Medeiros
- Laboratory of drug assay and development, Universidade Estadual da Paraíba, Campina Grande, Paraíba, Brazil
| |
Collapse
|
12
|
Hoffman CJ, Mackereth PA, Robinson N. Research – Driving forward integrated medicine. Eur J Integr Med 2014. [DOI: 10.1016/j.eujim.2014.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|