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Li T, Li H, Zhong L, Qin Y, Guo G, Liu Z, Hao N, Ouyang P. Analysis of heterologous expression of phaCBA promotes the acetoin stress response mechanism in Bacillus subtilis using transcriptomics and metabolomics approaches. Microb Cell Fact 2024; 23:58. [PMID: 38383407 PMCID: PMC10880289 DOI: 10.1186/s12934-024-02334-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 02/12/2024] [Indexed: 02/23/2024] Open
Abstract
Acetoin, a versatile platform chemical and popular food additive, poses a challenge to the biosafety strain Bacillus subtilis when produced in high concentrations due to its intrinsic toxicity. Incorporating the PHB synthesis pathway into Bacillus subtilis 168 has been shown to significantly enhance the strain's acetoin tolerance. This study aims to elucidate the molecular mechanisms underlying the response of B. subtilis 168-phaCBA to acetoin stress, employing transcriptomic and metabolomic analyses. Acetoin stress induces fatty acid degradation and disrupts amino acid synthesis. In response, B. subtilis 168-phaCBA down-regulates genes associated with flagellum assembly and bacterial chemotaxis, while up-regulating genes related to the ABC transport system encoding amino acid transport proteins. Notably, genes coding for cysteine and D-methionine transport proteins (tcyB, tcyC and metQ) and the biotin transporter protein bioY, are up-regulated, enhancing cellular tolerance. Our findings highlight that the expression of phaCBA significantly increases the ratio of long-chain unsaturated fatty acids and modulates intracellular concentrations of amino acids, including L-tryptophan, L-tyrosine, L-leucine, L-threonine, L-methionine, L-glutamic acid, L-proline, D-phenylalanine, L-arginine, and membrane fatty acids, thereby imparting acetoin tolerance. Furthermore, the supplementation with specific exogenous amino acids (L-alanine, L-proline, L-cysteine, L-arginine, L-glutamic acid, and L-isoleucine) alleviates acetoin's detrimental effects on the bacterium. Simultaneously, the introduction of phaCBA into the acetoin-producing strain BS03 addressed the issue of insufficient intracellular cofactors in the fermentation strain, resulting in the successful production of 70.14 g/L of acetoin through fed-batch fermentation. This study enhances our understanding of Bacillus's cellular response to acetoin-induced stress and provides valuable insights for the development of acetoin-resistant Bacillus strains.
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Affiliation(s)
- Tao Li
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211816, China
| | - Haixiang Li
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211816, China
| | - Lei Zhong
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211816, China
| | - Yufei Qin
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211816, China
| | - Gege Guo
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211816, China
| | - Zhaoxing Liu
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211816, China
| | - Ning Hao
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211816, China.
| | - Pingkai Ouyang
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211816, China
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2
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Ramalingam S, Chandrasekar MJN, Krishnan GGN, Nanjan MJ. Plant-based Natural Products as inhibitors for Efflux Pumps to Reverse Multidrug Resistance in Staphylococcus aureus: A Mini Review. Mini Rev Med Chem 2024; 24:272-288. [PMID: 37038687 DOI: 10.2174/1389557523666230406092128] [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: 11/24/2022] [Revised: 02/09/2023] [Accepted: 02/22/2023] [Indexed: 04/12/2023]
Abstract
Wounds provide a favourable site for microbial infection. Wound infection makes the healing more complex and does not proceed in an orchestrated manner leading to the chronic wound. Clinically infected wounds require proper antimicrobial therapy. Broad-spectrum antibiotics are usually prescribed first before going to targeted therapy. The current conventional mode of therapy mainly depends on the use of antibiotics topically or systemically. Repeated and prolonged use of antibiotics, however, leads to multidrug resistance. Staphylococcus aureus is the most common multidrugresistant microorganism found in wounds. It effectively colonizes the wound and produces many toxins, thereby reducing the host immune response and causing recurrent infection, thus making the wound more complex. The overexpression of efflux pumps is one of the major reasons for the emergence of multidrug resistance. Inhibition of efflux pumps is, therefore, a potential strategy to reverse this resistance. The effective therapy to overcome this antibiotic resistance is to use combination therapy, namely the combination of an inhibitor, and a non-antibiotic compound with an antibiotic for their dual function. Many synthetic efflux pump inhibitors to treat wound infections are still under clinical trials. In this connection, several investigations have been carried out on plant-based natural products as multidrug resistance-modifying agents as they are believed to be safe, inexpensive and suitable for chronic wound infections.
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Affiliation(s)
- Shalini Ramalingam
- Department of Pharmaceutical Chemistry, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu, 643001, India
| | - Moola Joghee Nanjan Chandrasekar
- School of Life Sciences, JSS Academy of Higher Education & Research (Ooty Campus), Longwood, Mysuru Road, Ooty, The Nilgiris, Tamil Nadu, 643001, India
| | - Ganesh G N Krishnan
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu, 643001, India
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3
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de Sousa Ferreira F, de Araújo Neto JB, de Morais Oliveira-Tintino CD, de Araújo ACJ, Ribeiro-Filho J, Freitas PR, Araújo IM, Lima MA, de Azevedo FR, Tintino SR, Coutinho HDM, Navarro DMDAF. Chemical composition and antibacterial effects of Etlingera elatior (Jack) R.M. Smith against Staphylococcus aureus efflux pumps. Chem Biol Interact 2023; 386:110751. [PMID: 37821044 DOI: 10.1016/j.cbi.2023.110751] [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: 06/20/2023] [Revised: 10/04/2023] [Accepted: 10/06/2023] [Indexed: 10/13/2023]
Abstract
Multidrug resistance is a significant health problem worldwide, with increasing mortality rates, especially in the last few years. In this context, a consistent effort has been made to discover new antibacterial agents, and evidence points to natural products as the most promising source of bioactive compounds. This research aimed to characterize the antibacterial effect of the essential oil of Etlingera elatior (EOEE) and its major constituents against efflux pump-carrying Staphylococcus aureus strains. The essential oil was extracted from fresh inflorescences by hydrodistillation. Chemical analysis was performed using gas chromatography coupled to mass spectrometry (GC-MS) and gas chromatography equipped with a flame ionization detector (GC-FID). The strains RN-4220, 1199B, IS-58, and 1199 of S. aureus were used to evaluate the antibacterial activity and the inhibition of efflux pumps. A total of 23 compounds were identified, including dodecanal and 1-dodecanol as major compounds. EOEE and dodecanal showed weak activity against the strains, while 1-dodecanol inhibited bacterial growth at low concentrations, indicating strong antibacterial activity. In addition, this compound potentiated the activity of norfloxacin against S. aureus 1199. In conclusion, 1-dodecanol was identified as the most effective compound of EOEE, showing significant potential to be used in antibacterial drug development.
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Affiliation(s)
- Felipe de Sousa Ferreira
- Departamento de Química Fundamental, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, Recife, Brazil
| | - José Bezerra de Araújo Neto
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, URCA, Crato, CE, Brazil
| | | | - Ana Carolina Justino de Araújo
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, URCA, Crato, CE, Brazil
| | | | - Priscilla Ramos Freitas
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, URCA, Crato, CE, Brazil
| | - Isaac Moura Araújo
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, URCA, Crato, CE, Brazil
| | - Micheline Azevedo Lima
- Departamento de Biologia Molecular, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, João Pessoa, Brazil
| | | | - Saulo Relison Tintino
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, URCA, Crato, CE, Brazil
| | - Henrique Douglas Melo Coutinho
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, URCA, Crato, CE, Brazil.
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Rayane Correia de Oliveira M, Gabriely de Lima Silva M, Datiane de Morais Oliveira-Tintino C, Relison Tintino S, Esmeraldo Rocha J, Ernani Alves Magalhães F, Henrique Sousa da Costa R, Torres Pessoa R, Sousa Alcântara I, Oliveira Brito Pereira Bezerra Martins A, Douglas Melo Coutinho H, Raposo A, Carrascosa C, Raduan Jaber J, Aquino Saraiva R, Rose Alencar de Menezes I. Antibacterial effect, efflux pump inhibitory (NorA, TetK and MepA) of Staphylococcus aureus and in silico prediction of α, β and δ-damascone compounds. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2022.104482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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5
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Oliveira RC, Bandeira PN, Lemos TLG, Dos Santos HS, Scherf JR, Rocha JE, Pereira RLS, Freitas TS, Freitas PR, Pereira-Junior FN, Marinho MM, Marinho EM, Marinho ES, Nogueira CES, Coutinho HDM, Teixeira AMR. In silico and in vitro evaluation of efflux pumps inhibition of α,β-amyrin. J Biomol Struct Dyn 2022; 40:12785-12799. [PMID: 34528866 DOI: 10.1080/07391102.2021.1976277] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The use of the bacterial efflux pump mechanism to reduce the concentrations of antibiotics in the intracellular to the extracellular region is one of the main mechanisms by which bacteria acquire resistance to antibiotics. The present study aims to evaluate the antibacterial activity of the α,β-amyrin mixture isolated from Protium heptaphyllum against the multidrug-resistant strains of Escherichia coli 06 and Staphylococcus aureus 10, and to verify the inhibition of the efflux resistance mechanisms against the strains of S. aureus 1199B and K2068, carrying the NorA and MepA efflux pumps, respectively. The α,β-amyrin did not show clinically relevant direct bacterial activity. However, the α,β-amyrin when associated with the gentamicin antibiotic presented synergistic effect against the multidrug-resistant bacterial strain of S. aureus 10. In strains with efflux pumps, α,β-amyrin was able to inhibit the action of the efflux protein NorA against Ethidium Bromide. However, this inhibitory effect was not observed in the MepA efflux pump. In addition, when evaluating the effect of standard efflux pump inhibitors, clorptomazine and CCCP, α,β-amyrin showed a decrease in MIC, demonstrating the presence of the efflux mechanism through synergism. Docking studies indicate that α, β-amyrin have a higher affinity energy to MepA, and NorA than ciprofloxacin and norfloxacin. Also, α, β-amyrin bind to the same region of the binding site as these antibiotics. It was concluded that the α, β-amyrin has the potential to increase antibacterial activity with the association of antibiotics, together with the ability to be a strong candidate for an efflux pump inhibitor.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Raíssa C Oliveira
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Paulo N Bandeira
- Science and Technology Centre, Course of Chemistry, State University Vale do Acaraú, Sobral, CE, Brazil
| | - Telma L G Lemos
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Hélcio S Dos Santos
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil.,Science and Technology Centre, Course of Chemistry, State University Vale do Acaraú, Sobral, CE, Brazil
| | - Jackelyne R Scherf
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Janaina E Rocha
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Raimundo L S Pereira
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Thiago S Freitas
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Priscila R Freitas
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Francisco N Pereira-Junior
- Center of Agricultural Sciences and of the Biodiversity, Federal University of Cariri, Juazeiro do Norte, CE, Brazil
| | - Márcia M Marinho
- Faculty of Education, Sciences and Letters of Iguatu, State University of Ceará, Campus FECLI, Iguatu, CE, Brazil
| | - Emanuelle M Marinho
- Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Emmanuel S Marinho
- Group of Theoretical Chemistry and Electrochemistry, State University of Ceará, Campus FAFIDAM, Limoeiro do Norte, CE, Brazil
| | - Carlos E S Nogueira
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil.,Department of Physics, Regional University of Cariri, Juazeiro do Norte, CE, Brazil
| | - Henrique D M Coutinho
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Alexandre M R Teixeira
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil.,Department of Physics, Regional University of Cariri, Juazeiro do Norte, CE, Brazil
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6
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Dias KJSDO, Miranda GM, Bessa JR, Araújo ACJD, Freitas PR, Almeida RSD, Paulo CLR, Neto JBDA, Coutinho HDM, Ribeiro-Filho J. Terpenes as bacterial efflux pump inhibitors: A systematic review. Front Pharmacol 2022; 13:953982. [PMID: 36313340 PMCID: PMC9606600 DOI: 10.3389/fphar.2022.953982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 09/27/2022] [Indexed: 11/20/2022] Open
Abstract
Managing antibiotic resistance is a significant challenge in modern pharmacotherapy. While molecular analyses have identified efflux pump expression as an essential mechanism underlying multidrug resistance, the targeted drug development has occurred slower. Thus, considering the verification that terpenes can enhance the activity of antibiotics against resistant bacteria, the present study gathered evidence pointing to these natural compounds as bacterial efflux pump inhibitors. A systematic search for manuscripts published between January 2007 and January 2022 was carried out using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol and the following search terms: “Terpene”; AND “Efflux pump”; and “Bacteria.” From a total of 101 articles found in the initial search, 41 were included in this review. Seventy-five different terpenes, 63 bacterial strains, and 22 different efflux pumps were reported, with carvacrol, Staphylococcus aureus SA-1199B, and NorA appearing most frequently mentioned terpene, bacterial strain, and efflux pump (EP), respectively. The Chi-Squared analysis indicated that terpenes are significantly effective EP inhibitors in Gram-positive and Gram-negative strains, with the inhibitory frequency significantly higher in Gram-positive strains. The results of the present review suggest that terpenes are significant efflux pump inhibitors and, as such, can be used in drug development targeting the combat of antibacterial resistance.
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Affiliation(s)
| | - Gustavo Marinho Miranda
- Laboratory of Genetics and Translational Hematology, Oswaldo Cruz Foundation (FIOCRUZ), Salvador, Bahia, Brazil
| | - Jonatas Reis Bessa
- Institute of Psychology, Federal University of Bahia (UFBA), Salvador, Bahia, Brazil
| | - Ana Carolina Justino De Araújo
- Laboratory of Microbiology and Molecular Biology, Department of Biological Sciences, Regional University of Cariri, Crato, Ceará, Brazil
| | - Priscilla Ramos Freitas
- Laboratory of Microbiology and Molecular Biology, Department of Biological Sciences, Regional University of Cariri, Crato, Ceará, Brazil
| | - Ray Silva De Almeida
- Laboratory of Microbiology and Molecular Biology, Department of Biological Sciences, Regional University of Cariri, Crato, Ceará, Brazil
| | - Cícera Laura Roque Paulo
- Laboratory of Microbiology and Molecular Biology, Department of Biological Sciences, Regional University of Cariri, Crato, Ceará, Brazil
| | - José Bezerra De Araújo Neto
- Laboratory of Microbiology and Molecular Biology, Department of Biological Sciences, Regional University of Cariri, Crato, Ceará, Brazil
| | - Henrique D. M. Coutinho
- Laboratory of Microbiology and Molecular Biology, Department of Biological Sciences, Regional University of Cariri, Crato, Ceará, Brazil
| | - Jaime Ribeiro-Filho
- Laboratory of Genetics and Translational Hematology, Oswaldo Cruz Foundation (FIOCRUZ), Salvador, Bahia, Brazil
- Fiocruz Ceará, Oswaldo Cruz Foundation (FIOCRUZ), Eusébio, Ceará, Brazil
- *Correspondence: Jaime Ribeiro-Filho,
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Alonso VPP, Furtado MM, Iwase CHT, Brondi-Mendes JZ, Nascimento MDS. Microbial resistance to sanitizers in the food industry: review. Crit Rev Food Sci Nutr 2022; 64:654-669. [PMID: 35950465 DOI: 10.1080/10408398.2022.2107996] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Hygiene programs which comprise the cleaning and sanitization steps are part of the Good Hygiene Practices (GHP) and are considered essential to ensure food safety and quality. Inadequate hygiene practices may contribute to the occurrence of foodborne diseases, development of microbial resistance to sanitizers, and economic losses. In general, the sanitizer resistance is classified as intrinsic or acquired. The former is an inherent characteristic, naturally present in some microorganisms, whereas the latter is linked to genetic modifications that can occur at random or after continuous exposure to a nonnormal condition. The resistance mechanisms can involve changes in membrane permeability or in the efflux pump, and enzymatic activity. The efflux pump mechanism is the most elucidated in relation to the resistance caused by the use of different types of sanitizers. In addition, microbial resistance to sanitizers can also be favored in the presence of biofilms due to the protection given by the glycocalyx matrix and genetic changes. Therefore, this review aimed to show the main microbial resistance mechanisms to sanitizers, including genetic modifications, biofilm formation, and permeability barrier.
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Affiliation(s)
| | - Marianna Miranda Furtado
- Department of Food Science and Nutrition, University of Campinas - UNICAMP, Campinas, SP, Brazil
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Phytochemical Analysis, Antibacterial Activity and Modulating Effect of Essential Oil from Syzygium cumini (L.) Skeels. Molecules 2022; 27:molecules27103281. [PMID: 35630757 PMCID: PMC9145283 DOI: 10.3390/molecules27103281] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/14/2022] [Accepted: 05/17/2022] [Indexed: 12/04/2022] Open
Abstract
One of the main global problems that affect human health is the development of bacterial resistance to different drugs. As a result, the growing number of multidrug-resistant pathogens has contributed to an increase in resistant infections and represents a public health problem. The present work seeks to investigate the chemical composition and antibacterial activity of the essential oil of Syzygium cumini leaves. To identify its chemical composition, gas chromatography coupled to mass spectrometry was used. The antibacterial activity test was performed with the standard strains Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 25853 and Staphylococcus aureus ATCC 25923 and multidrug-resistant clinical isolates E. coli 06, P. aeruginosa 24 and S. aureus 10. The minimum inhibitory concentration (MIC) was determined by serial microdilution as well as the verification of the modulating effect of the antibiotic effect. In this test, the oil was used in a subinhibitory concentration. The test reading was performed after 24 h of incubation at 37 °C. The results show that the major chemical constituent is α-pinene (53.21%). The oil showed moderate activity against E. coli ATCC 25922, with the MIC of 512 µg/mL; there was no activity against the other strains. The oil potentiated the effect of antibiotics demonstrating possible synergism when associated with gentamicin, erythromycin and norfloxacin against E. coli 06 and S. aureus 10.
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de Freitas MA, da Cruz RP, dos Santos ATL, Almeida-Bezerra JW, Machado AJT, dos Santos JFS, Rocha JE, Boligon AA, Bezerra CF, de Freitas TS, do Nascimento Silva MK, Mendonça ACAM, da Costa JGM, Coutinho HDM, da Cunha FAB, Filho JR, Morais-Braga MFB. HPLC-DAD analysis and antimicrobial activities of Spondias mombin L. (Anacardiaceae). 3 Biotech 2022; 12:61. [PMID: 35186658 PMCID: PMC8818589 DOI: 10.1007/s13205-022-03126-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 01/23/2022] [Indexed: 12/18/2022] Open
Abstract
Spondias mombin is used in the folk medicine for the treatment of diarrhea and dysentery, indicating that extracts obtained from this species may present pharmacological activities against pathogenic microorganisms. The purpose of this work was to investigate the chemical composition and evaluate the antimicrobial activity of extracts obtained from the leaves (aqueous) and bark (hydroethanolic) of S. mombin both as single treatments and in combination with conventional drugs. Following a qualitative chemical prospection, the extracts were analyzed by HPLC-DAD. The antimicrobial activities were evaluated by microdilution. The combined activity of drugs and extracts was verified by adding a subinhibitory concentration of the extract in the presence of variable drug concentrations. The Minimum Fungicidal Concentration (MFC) was determined by a subculture of the microdilution test, while the effect of the in vitro treatments on morphological transition was analyzed by subculture in moist chambers. While the qualitative analysis detected the presence of phenols and flavonoids, the HPLC analysis identified quercetin, caffeic acid, and catechin as major components in the leaf extract, whereas kaempferol and quercetin were found as major compounds in the bark extract. The extracts showed effective antibacterial activities only against the Gram-negative strains. With regard to the combined activity, the leaf extract potentiated the action of gentamicin and imipenem (against Staphylococcus aureus), while the bark extract potentiated the effect of norfloxacin (against S. aureus), imipenem (against Escherichia coli), and norfloxacin (against Pseudomonas aeruginosa). A more significant antifungal (fungistatic) effect was achieved with the bark extract (even though at high concentrations), which further enhanced the activity of fluconazole. The extracts also inhibited the emission of filaments by Candida albicans and Candida tropicalis. Together, these findings suggest that that the extract constituents may act by favoring the permeability of microbial cells to conventional drugs, as well as by affecting virulence mechanisms in Candida strains.
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Abstract
This work presents an overview of the modern approaches embracing advanced equipment and validation parameters of both liquid and gas chromatography techniques, including thin-layer chromatography (TLC), column liquid chromatography (CLC), and gas chromatography (GC), suitable for the identification and quantitative determination of various bioactive compounds occurring in pharmaceutical products and medicinal plants in the time from 2020 to 2021 (November). This review confirmed that HPLC is an incredibly universal tool, especially when combined with different detectors, such as UV-Visible spectroscopy, mass spectrometry (MS), and fluorescence detection for numerous active ingredients in different pharmaceutical formulations without interferences from other excipients. TLC, in combination with densitometry, is a very efficient tool for the determination of biologically active substances present in pharmaceutical preparations. In addition, TLC coupled to densitometry and mass spectrometry could be suitable for preliminary screening and determination of the biological activity (e.g., antioxidant properties, thin layer chromatography (TLC) by 2,2-diphenyl-1-picrylhydrazyl (DPPH) method) of plant materials. Gas chromatography, coupled with a mass spectrometer (GC-MS, GC-MS/MS), is of particular importance in the testing of any volatile substances, such as essential oils. LC, coupled to NMR and MS, is the best solution for identifying and studying the structure of unknown components from plant extracts, as well as degradation products (DPs). Thanks to size-exclusion chromatography, coupled to multi-angle light scattering, the quality control of biological pharmaceuticals is possible.
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Nie Y, Luo Y, Luo S, Cao X, Song G, Deng C. Amphiphilic copolymers grafted on monodisperse magnetic microspheres as an efficient adsorbent for the extraction of safrole in the plasma. J Chromatogr A 2021; 1662:462733. [PMID: 34902718 DOI: 10.1016/j.chroma.2021.462733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 11/27/2021] [Accepted: 12/02/2021] [Indexed: 01/03/2023]
Abstract
Polystyrene (PS) microsphere is a kind of attractive extracting medium due to its high stability in different matrices and its particle size can be controlled. The attachment of amphiphilic copolymers to the PS microsphere surface can overcome the drawback of PS relevant to its hydrophobic nature and low wettability. In our previous work, the magnetic composite based on PS microsphere (5 µm) and poly (divinylbenzene-co-N-vinylpyrrolidone, DVB-co-NVP) shell was successfully fabricated and applied for the extraction of safrole in cola drinks. However, the large size and ease of sedimentation limited its application in the enrichment of safrole from blood samples. Considering the adjustability of PS microsphere size, we synthesized the porous PS microspheres with the uniform size of 3 µm and then functionalized with Fe3O4 nanoparticles and poly (DVB-co-NVP) layer in this work. Using the proposed material as extraction sorbent, a simple and fast magnetic solid phase extraction (MSPE) method coupled with HPLC was developed for quantification of safrole in the plasma. Under the optimized conditions, the response to safrole was linear in the range of 0.02-12 µg mL-1, and the limit of detection (LOD) was 0.006 µg mL-1. Satisfactory recoveries were obtained between 85.67% and 97.74% (spiked at 0.05, 0.2, 2 µg mL-1) and the relative standard deviations (RSDs) for the above spiked levels of the analyte were below 3.9% (n = 6). The adsorbent can be reused for 6 cycles without a significant loss of extraction capability.
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Affiliation(s)
- Ying Nie
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu, Sichuan 611137, China
| | - Yuan Luo
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu, Sichuan 611137, China
| | - Shajie Luo
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu, Sichuan 611137, China
| | - Xiujun Cao
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu, Sichuan 611137, China; Research Center of Analysis and Measurement, Fudan University, 2005 Songhu Road, Shanghai 200438, China; Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, UK.
| | - Guoxin Song
- Research Center of Analysis and Measurement, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
| | - Chunhui Deng
- Department of Chemistry, Institutes of Biomedical Sciences, Fudan University, 2005 Songhu Road, Shanghai 200438, China
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Passos BG, de Albuquerque RDDG, Muñoz-Acevedo A, Echeverria J, Llaure-Mora AM, Ganoza-Yupanqui ML, Rocha L. Essential oils from Ocotea species: Chemical variety, biological activities and geographic availability. Fitoterapia 2021; 156:105065. [PMID: 34688821 DOI: 10.1016/j.fitote.2021.105065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 11/15/2022]
Abstract
This review describes the chemical composition and biological properties of essential oils from plants of the Ocotea genus, from different origin. This taxon belongs to the Laureaceae family, which in turn, is best known for medicinal use, often related to the essential oils. The text includes studies about Ocotea species distributed mainly on the South American continent, but also reporting species located in North America and Africa. Brazil, Colombia, Costa Rica and Ecuador are countries with highest number of species mentioned in the review. Also, the major components of each essential oil, its chemical structures, as well as the description and extent of biological activities related to essential oils are detailed in this review. Finally, the text discusses the chemical and biological aspects of these studies in a comparatively way, also informing additional data such as yield, biome of origin and pharmacobotanical location.
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Affiliation(s)
- Bruno Goulart Passos
- Laboratório de Tecnologia em Productos Naturais, Faculdade de Farmácia, Universidade Federal Fluminense, Niterói, Brazil
| | - Ricardo Diego Duarte Galhardo de Albuquerque
- Laboratório de Tecnologia em Productos Naturais, Faculdade de Farmácia, Universidade Federal Fluminense, Niterói, Brazil; Departamento de Farmacología, Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo, Peru.
| | - Amner Muñoz-Acevedo
- Departamento de Química y Biología, Universidad del Norte, Barranquilla, Colombia.
| | - Javier Echeverria
- Departamento de Ciencias Ambientales, Facultad de Química y Biología, Universidad Santiago de Chile, Chile.
| | - Alejandrina M Llaure-Mora
- Departamento de Farmacología, Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo, Peru.
| | - Mayar L Ganoza-Yupanqui
- Departamento de Farmacología, Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo, Peru.
| | - Leandro Rocha
- Laboratório de Tecnologia em Productos Naturais, Faculdade de Farmácia, Universidade Federal Fluminense, Niterói, Brazil
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de Almeida RS, Ribeiro-Filho J, Freitas PR, de Araújo ACJ, Dos Santos EL, Tintino SR, Moura TF, Ferreira VA, Ferreira BA, Juno Alencar Fonseca V, Leite PIP, Albuquerque da Silva AC, Everson da Silva L, do Amaral W, Deschamps C, Siyadatpanah A, Wilairatana P, Coutinho HDM. Enhancement of the antibiotic activity mediated by the essential oil of Ocotea odorifera (VELL) ROWHER and safrole association. J Infect Public Health 2021; 15:373-377. [PMID: 34656506 DOI: 10.1016/j.jiph.2021.09.028] [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: 08/02/2021] [Revised: 09/09/2021] [Accepted: 09/27/2021] [Indexed: 11/18/2022] Open
Abstract
In a recent study, our research group demonstrated that the essential oil of Ocotea odorifera (EOOO) and its major compound safrole potentiated the action fluoroquinolones, modulating bacterial resistance possibly due to direct inhibition of efflux pumps. Thus, in the present study, we investigated whether these treatments could enhance the activity of gentamicin and erythromycin against multidrug-resistant (MDR) bacteria. The EOOO was extracted by hydrodistillation, and the phytochemical analysis was performed by gas chromatography coupled to mass spectrometry (GC-MS). The antibiotic-enhancing effect of the EOOO and safrole against MDR strains of Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa was analyzed by the broth microdilution method. The chemical analysis confirmed the presence of safrole as a major component among the 16 compounds identified in the EOOO. Both the essential oil and the isolated compound showed clinically relevant antibacterial activities against S. aureus. Regarding the modulation of antibiotic resistance, the EOOO was found to enhance the activity of erythromycin against the strains of P. aeruginosa and S. aureus, as well as improving the action of gentamicin against S. aureus. On the other hand, safrole potentiated the activity of gentamicin against the S. aureus strain alone. It is concluded, therefore, that the EOOO and safrole can enhance the activity of macrolides and aminoglycosides, and as such are useful in the development of therapeutic tools to combat bacterial resistance against these classes of antibiotics.
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Affiliation(s)
- Ray Silva de Almeida
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil.
| | | | - Priscilla Ramos Freitas
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil.
| | | | - Eduardo Lourenço Dos Santos
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil.
| | - Saulo Relison Tintino
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil.
| | - Talysson Felismino Moura
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil.
| | | | | | - Victor Juno Alencar Fonseca
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil
| | - Pedro Ivo Palacio Leite
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil
| | | | - Luiz Everson da Silva
- Post Graduate Programme in Sustainable Territorial Development, Federal University of Paraná - UFPR, Matinhos, Brazil.
| | - Wanderlei do Amaral
- Post Graduate Programme in Sustainable Territorial Development, Federal University of Paraná - UFPR, Matinhos, Brazil.
| | - Cícero Deschamps
- Post Graduate Programme in Agronomy, Federal University of Paraná - UFPR, Curitiba, Brazil.
| | - Abolghasem Siyadatpanah
- Ferdows School of Paramedical and Health, Birjand University of Medical Sciences, Birjand, Iran.
| | - Polrat Wilairatana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand.
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14
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Agreles MAA, Cavalcanti IDL, Cavalcanti IMF. The Role of Essential Oils in the Inhibition of Efflux Pumps and Reversion of Bacterial Resistance to Antimicrobials. Curr Microbiol 2021; 78:3609-3619. [PMID: 34432112 DOI: 10.1007/s00284-021-02635-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 08/17/2021] [Indexed: 01/09/2023]
Abstract
Due to the deaths from infections caused by multidrug-resistant microorganisms worldwide, the World Health Organization considers antibiotic resistance to be a critical global public health problem. Bacterial resistance mechanisms are diverse and can be acquired through the overexpression of transmembrane proteins that are called efflux pumps, which act by expelling drugs from the intracellular environment, thereby preventing their action and contributing to the severity of infections. Efflux pumps are one of the main mechanisms of bacterial resistance, and it is important to identify new molecules that are capable of inhibiting the action of efflux pumps and circumvent the problem of resistance linked to the expression of these transmembrane proteins. The plants are promising candidates for obtaining biologically active substances, such as essential oils, with antimicrobial activity and inhibitors of efflux pumps, which can help in the resensitization of bacterial strains resistant to antibiotics. Therefore, this review aims to present the recently reported inhibitory activity of essential oils against bacterial pathogens that produce efflux pumps.
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Affiliation(s)
- Maria Anndressa Alves Agreles
- Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife, Pernambuco, CEP: 50670-901, Brazil
| | - Iago Dillion Lima Cavalcanti
- Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife, Pernambuco, CEP: 50670-901, Brazil
| | - Isabella Macário Ferro Cavalcanti
- Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife, Pernambuco, CEP: 50670-901, Brazil.
- Laboratory of Microbiology and Immunology, Academic Center of Vitória (CAV), Federal University of Pernambuco (UFPE), Rua do Alto do Reservatório s/n, Bela Vista, Vitória de Santo Antão, Pernambuco, CEP: 55608-680, Brazil.
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Inhibition of the MepA efflux pump by limonene demonstrated by in vitro and in silico methods. Folia Microbiol (Praha) 2021; 67:15-20. [PMID: 34417720 DOI: 10.1007/s12223-021-00909-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 08/09/2021] [Indexed: 10/20/2022]
Abstract
Bacterial resistance is a natural process carried out by bacteria, which has been considered a public health problem in recent decades. This process can be triggered through the efflux mechanism, which has been extensively studied, mainly related to the use of natural products to inhibit this mechanism. To carry out the present study, the minimum inhibitory concentration (MIC) tests of the compound limonene were performed, through the microdilution methodology in sterile 96-well plates. Tests were also carried out with the association of the compound with ethidium bromide and ciprofloxacin, in addition to the ethidium bromide fluorimetry, and later the molecular docking. From the tests performed, it was possible to observe that the compound limonene presented significant results when associated with ethidium bromide and the antibiotic used. Through the fluorescence emission, it was observed that when associated with the compound limonene, a greater ethidium bromide fluorescence was emitted. Finally, when analyzing the in silico study, it demonstrated that limonene can efficiently fit into the MepA structure. In this way, it is possible to show that limonene can contribute to cases of bacterial resistance through an efflux pump, so that it is necessary to carry out more studies to prove its effects against bacteria carrying an efflux pump and assess the toxicity of the compound.
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de Araújo ACJ, Freitas PR, Dos Santos Barbosa CR, Muniz DF, de Almeida RS, Alencar de Menezes IR, Ribeiro-Filho J, Tintino SR, Coutinho HDM. In Vitro and In Silico Inhibition of Staphylococcus aureus Efflux Pump NorA by α-Pinene and Limonene. Curr Microbiol 2021; 78:3388-3393. [PMID: 34268598 DOI: 10.1007/s00284-021-02611-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 07/07/2021] [Indexed: 11/25/2022]
Abstract
Since the discovery of the first antibiotics, bacteria have acquired a variety of resistance mechanisms, with efflux pump (EP) being the most prominent mechanism for intracellular targeting drugs. These proteins have become efficient mechanisms of resistance to antibiotics in species such as Staphylococcus aureus and, therefore, have been identified as promising therapeutic targets in antibacterial drug development. Accordingly, evidence suggests that monoterpenes can act as EP inhibitors and can be useful in circumventing bacterial resistance. This study aimed to evaluate the effectiveness of monoterpenes α-pinene and limonene as EP inhibitors against a strain of S. aureus expressing NorA protein. The minimum inhibitory concentration (MIC) against the 1199B strain of S. aureus, which carries genes encoding efflux proteins associated with antibiotic resistance to norfloxacin, was assessed through the broth microdilution method. The results obtained served as a subsidy for the analysis of the NorA pump inhibition with norfloxacin and ethidium bromide. Docking techniques, in silico, were used to evaluate the interaction of monoterpenes with NorA. Both monoterpenes showed no clinically effective antibacterial activity. Nevertheless, these compounds were found to decrease the MICs of ethidium bromide and norfloxacin indicating EP inhibition, which was confirmed by molecular docking analyses. In conclusion, α-pinene and limonene showed promising antibiotic-enhancing properties in S. aureus 1199B strain, indicating that monoterpenes can be used in targeted drug development to combat antibiotic resistance associated with EP expression.
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Affiliation(s)
- Ana Carolina Justino de Araújo
- Department of Biological Chemistry, Regional University of Cariri - URCA, Rua Cel. Antonio Luis 1161, Pimenta, Crato, CE, 63105-000, Brazil
| | - Priscilla Ramos Freitas
- Department of Biological Chemistry, Regional University of Cariri - URCA, Rua Cel. Antonio Luis 1161, Pimenta, Crato, CE, 63105-000, Brazil
| | | | - Débora Feitosa Muniz
- Department of Biological Chemistry, Regional University of Cariri - URCA, Rua Cel. Antonio Luis 1161, Pimenta, Crato, CE, 63105-000, Brazil
| | - Ray Silva de Almeida
- Department of Biological Chemistry, Regional University of Cariri - URCA, Rua Cel. Antonio Luis 1161, Pimenta, Crato, CE, 63105-000, Brazil
| | - Irwin Rose Alencar de Menezes
- Department of Biological Chemistry, Regional University of Cariri - URCA, Rua Cel. Antonio Luis 1161, Pimenta, Crato, CE, 63105-000, Brazil
| | - Jaime Ribeiro-Filho
- Gonçalo Moniz Institute (IGM), Oswaldo Cruz Foundation (FIOCRUZ), Salvador, BA, Brazil
| | - Saulo Relison Tintino
- Department of Biological Chemistry, Regional University of Cariri - URCA, Rua Cel. Antonio Luis 1161, Pimenta, Crato, CE, 63105-000, Brazil
| | - Henrique Douglas Melo Coutinho
- Department of Biological Chemistry, Regional University of Cariri - URCA, Rua Cel. Antonio Luis 1161, Pimenta, Crato, CE, 63105-000, Brazil.
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Jhanji R, Singh A, Kumar A. Antibacterial potential of selected phytomolecules: An experimental study. Microbiol Immunol 2021; 65:325-332. [PMID: 33930208 DOI: 10.1111/1348-0421.12890] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 03/11/2021] [Accepted: 04/27/2021] [Indexed: 12/01/2022]
Abstract
Antibiotic resistance is a snowballing international threat. Some of the antibiotics have lost their effectiveness due to overuse and underuse. Thus, there is an urgent need to tackle this global challenge, either by inhibiting the resistance mechanisms or by the development of new chemical entities. Thus, in the current study, the antibacterial activity of selected phytomolecules was investigated against bacterial strains, alone and in combination, with standard drugs. The antibacterial potential of these phytomolecules was explored using in vitro assays (microtiter assay, bacterial growth kinetics, percentage retardation of growth, and antimicrobial synergy study) and in vivo studies (zebrafish infection model). In vitro and in vivo studies have shown promising antibacterial effects against, both, Gram-positive and Gram-negative bacteria. Moreover, a cell viability assay also indicated the cytoprotective effect of these phytomolecules in combination with standard antibiotics (SABX). Thus, these phytomolecules could be a promising broad-spectrum antibacterial agent in combination with standard antibiotics.
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Affiliation(s)
- Rishabh Jhanji
- Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India
| | - Arti Singh
- Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India
| | - Anoop Kumar
- Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India
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18
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Dos Santos Barbosa CR, Scherf JR, de Freitas TS, de Menezes IRA, Pereira RLS, Dos Santos JFS, de Jesus SSP, Lopes TP, de Sousa Silveira Z, de Morais Oliveira-Tintino CD, Júnior JPS, Coutinho HDM, Tintino SR, da Cunha FAB. Effect of Carvacrol and Thymol on NorA efflux pump inhibition in multidrug-resistant (MDR) Staphylococcus aureus strains. J Bioenerg Biomembr 2021; 53:489-498. [PMID: 34159523 DOI: 10.1007/s10863-021-09906-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 06/14/2021] [Indexed: 02/08/2023]
Abstract
Undue exposure to antimicrobials has led to the acquisition and development of sophisticated bacterial resistance mechanisms, such as efflux pumps, which are able to expel or reduce the intracellular concentration of various antibiotics, making them ineffective. Therefore, inhibiting this mechanism is a promising way to minimize the phenomenon of resistance in bacteria. In this sense, the present study sought to evaluate the activity of the Carvacrol (CAR) and Thymol (THY) terpenes as possible Efflux Pump Inhibitors (EPIs), by determining the Minimum Inhibitory Concentration (MIC) and the association of these compounds in subinhibitory concentrations with the antibiotic Norfloxacin and with Ethidium Bromide (EtBr) against strains SA-1199 (wild-type) and SA-1199B (overexpresses NorA) of Staphylococcus aureus. In order to verify the interaction of the terpenes with the NorA efflux protein, an in silico molecular modeling study was carried out. The assays used to obtain the MIC of CAR and THY were performed by broth microdilution, while the Efflux Pump inhibitory test was performed by the MIC modification method of the antibiotic Norfloxacin and EtBr. docking was performed using the Molegro Virtual Docker (MVD) program. The results of the study revealed that CAR and THY have moderate bacterial activity and are capable of reducing the MIC of Norfloxacin antibiotic and EtBr in strains of S. aureus carrying the NorA efflux pump. The docking results showed that these terpenes act as possible competitive NorA inhibitors and can be investigated as adjuvants in combined therapies aimed at reducing antibiotic resistance.
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Affiliation(s)
| | - Jackelyne Roberta Scherf
- Laboratory of Semi-Arid Bioprospecting (LABSEMA), Regional University of Cariri-URCA, Crato, Brazil
| | - Thiago Sampaio de Freitas
- Laboratory of Simulations and Molecular Spectroscopy (Lasemol), Regional University of Cariri-URCA, Crato, Brazil
| | - Irwin Rose Alencar de Menezes
- Laboratory of Pharmacology and Molecular Chemistry (LFQM), Department of Biological Chemistry, Regional University of Cariri-URCA, Crato, Brazil
| | - Raimundo Luiz Silva Pereira
- Laboratory of Simulations and Molecular Spectroscopy (Lasemol), Regional University of Cariri-URCA, Crato, Brazil
| | | | | | - Thais Pereira Lopes
- Laboratory of Semi-Arid Bioprospecting (LABSEMA), Regional University of Cariri-URCA, Crato, Brazil
| | | | | | | | | | - Saulo Relison Tintino
- Laboratory of Microbiology and Molecular Biology (LMBM), Regional University of Cariri-URCA, Crato, Brazil
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Lunz K, Stappen I. Back to the Roots-An Overview of the Chemical Composition and Bioactivity of Selected Root-Essential Oils. Molecules 2021; 26:3155. [PMID: 34070487 PMCID: PMC8197530 DOI: 10.3390/molecules26113155] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/18/2021] [Accepted: 05/20/2021] [Indexed: 11/30/2022] Open
Abstract
Since ancient times, plant roots have been widely used in traditional medicine for treating various ailments and diseases due to their beneficial effects. A large number of studies have demonstrated that-besides their aromatic properties-their biological activity can often be attributed to volatile constituents. This review provides a comprehensive overview of investigations into the chemical composition of essential oils and volatile components obtained from selected aromatic roots, including Angelica archangelica, Armoracia rusticana, Carlina sp., Chrysopogon zizanioides, Coleus forskohlii, Inula helenium, Sassafras albidum, Saussurea costus, and Valeriana officinalis. Additionally, their most important associated biological impacts are reported, such as anticarcinogenic, antimicrobial, antioxidant, pesticidal, and other miscellaneous properties. Various literature and electronic databases-including PubMed, ScienceDirect, Springer, Scopus, Google Scholar, and Wiley-were screened and data was obtained accordingly. The results indicate the promising properties of root-essential oils and their potential as a source for natural biologically active products for flavor, pharmaceutical, agricultural, and fragrance industries. However, more research is required to further establish the mechanism of action mediating these bioactivities as well as essential oil standardization because the chemical composition often strongly varies depending on external factors.
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Affiliation(s)
| | - Iris Stappen
- Department of Pharmaceutical Sciences, University of Vienna, 1090 Vienna, Austria;
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20
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Nicault M, Zaiter A, Dumarcay S, Chaimbault P, Gelhaye E, Leblond P, Bontemps C. Elicitation of Antimicrobial Active Compounds by Streptomyces-Fungus Co-Cultures. Microorganisms 2021; 9:microorganisms9010178. [PMID: 33467607 PMCID: PMC7830452 DOI: 10.3390/microorganisms9010178] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 12/23/2020] [Accepted: 01/12/2021] [Indexed: 02/06/2023] Open
Abstract
The bacteria of the genus Streptomyces and Basidiomycete fungi harbor many biosynthetic gene clusters (BGCs) that are at the origin of many bioactive molecules with medical or industrial interests. Nevertheless, most BGCs do not express in standard lab growth conditions, preventing the full metabolic potential of these organisms from being exploited. Because it generates biotic cues encountered during natural growth conditions, co-culture is a means to elicit such cryptic compounds. In this study, we explored 72 different Streptomyces-fungus interaction zones (SFIZs) generated during the co-culture of eight Streptomyces and nine fungi. Two SFIZs were selected because they showed an elicitation of anti-bacterial activity compared to mono-cultures. The study of these SFIZs showed that co-culture had a strong impact on the metabolic expression of each partner and enabled the expression of specific compounds. These results show that mimicking the biotic interactions present in this ecological niche is a promising avenue of research to explore the metabolic capacities of Streptomyces and fungi.
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Affiliation(s)
- Matthieu Nicault
- Université de Lorraine, INRAE, DynAMic, F-54000 Nancy, France;
- Université de Lorraine, INRAE, IAM, F-54000 Nancy, France;
| | - Ali Zaiter
- Université de Lorraine, LCP-A2MC, F-57000 Metz, France; (A.Z.); (P.C.)
| | | | | | - Eric Gelhaye
- Université de Lorraine, INRAE, IAM, F-54000 Nancy, France;
| | - Pierre Leblond
- Université de Lorraine, INRAE, DynAMic, F-54000 Nancy, France;
- Correspondence: (P.L.); (C.B.)
| | - Cyril Bontemps
- Université de Lorraine, INRAE, DynAMic, F-54000 Nancy, France;
- Correspondence: (P.L.); (C.B.)
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21
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Tentori F, Brenna E, Ferrari C, Gatti FG, Ghezzi MC, Parmeggiani F. Chemo-enzymatic oxidative cleavage of isosafrole for the synthesis of piperonal. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00173f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Piperonal is a key feedstock for the fine chemical industry. A novel process for its production from isosafrole is described, based on lipase-mediated perhydrolysis in flow, followed by batch alkaline treatment and by MnO2 oxidation in flow.
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Affiliation(s)
- Francesca Tentori
- Dipartimento di Chimica, Materiali ed Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy
| | - Elisabetta Brenna
- Dipartimento di Chimica, Materiali ed Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy
| | - Chiara Ferrari
- Dipartimento di Chimica, Materiali ed Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy
| | - Francesco G. Gatti
- Dipartimento di Chimica, Materiali ed Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy
| | - Maria Chiara Ghezzi
- Dipartimento di Chimica, Materiali ed Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy
| | - Fabio Parmeggiani
- Dipartimento di Chimica, Materiali ed Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy
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22
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The effect of efflux pump inhibitors on in vitro and in vivo efficacy of solid lipid nanoparticles containing SN38. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101969] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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