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Barta A, Salusso A, Kúsz N, Berkecz R, Schlauer J, Purger D, Hohmann J, Carpinella MC, Vasas A. Phenanthrenes from Juncus articulatus with Antibacterial and Biofilm Formation Inhibitory Activity. JOURNAL OF NATURAL PRODUCTS 2024. [PMID: 39121346 DOI: 10.1021/acs.jnatprod.4c00577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/11/2024]
Abstract
Continuing our search for bioactive compounds in species from the Juncaceae family, Juncus articulatus was investigated. Ten previously undescribed phenanthrenes─articulins A-J (1-10)─and ten known compounds─juncuenin B, dehydrojuncuenin B, juncatrin B, ensifolins E, F, H, I, K, juncuenin D, and luzulin A (11-20)─along with other compounds, have been isolated and identified. The isolated compounds were evaluated for antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, methicillin-susceptible Staphylococcus aureus (MSSA), and methicillin-resistant Staphylococcus aureus (MRSA). Compounds 12 and 14 exhibited the most potent activity against planktonic and sessile MSSA and MRSA with minimum inhibitory concentration (MIC) values of 15.1 μM (12 for both bacterial strains) and 15.3 μM (14 for both bacterial strains). Compounds 15, 17, and 18 also exhibited activity against both strains, although to a lower extent, with MIC values ranging from 30.0 to 56.8 μM. The inhibition of biofilm formation of these compounds was observed at 15.1-114.3 μM. This study elucidates the phenanthrene composition of J. articulatus and the antibacterial effect of these compounds.
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Affiliation(s)
- Anita Barta
- Institute of Pharmacognosy, University of Szeged, Szeged 6720, Hungary
- HUN-REN-USZ Biologically Active Natural Products Research Group, University of Szeged, Szeged 6720, Hungary
| | - Agostina Salusso
- Fine Chemical and Natural Products Laboratory, CIDIE CONICET-UCC, Universidad Católica de Córdoba, Córdoba X5016DHK, Argentina
| | - Norbert Kúsz
- Institute of Pharmacognosy, University of Szeged, Szeged 6720, Hungary
| | - Róbert Berkecz
- Institute of Pharmaceutical Analysis, University of Szeged, Szeged 6720, Hungary
| | - Jan Schlauer
- The Center for Plant Molecular Biology, University of Tubingen, Tubingen 72076, Germany
| | - Dragica Purger
- Department of Pharmacognosy, University of Pécs, Pécs 7624, Hungary
| | - Judit Hohmann
- Institute of Pharmacognosy, University of Szeged, Szeged 6720, Hungary
- HUN-REN-USZ Biologically Active Natural Products Research Group, University of Szeged, Szeged 6720, Hungary
| | - Maria Cecilia Carpinella
- Fine Chemical and Natural Products Laboratory, CIDIE CONICET-UCC, Universidad Católica de Córdoba, Córdoba X5016DHK, Argentina
| | - Andrea Vasas
- Institute of Pharmacognosy, University of Szeged, Szeged 6720, Hungary
- HUN-REN-USZ Biologically Active Natural Products Research Group, University of Szeged, Szeged 6720, Hungary
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2
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Dhamodiran M, Chinnaperumal K, J D, Venkatesan G, A Alshiekheid M, Suseem SR. Isolation, structural elucidation of bioactive compounds and their wound-healing ability, antibacterial and In silico molecular docking applications. ENVIRONMENTAL RESEARCH 2024; 252:119023. [PMID: 38685295 DOI: 10.1016/j.envres.2024.119023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/13/2024] [Accepted: 04/24/2024] [Indexed: 05/02/2024]
Abstract
Andrographis echioides has been extensively utilized in traditional Indian folk medicines for several skin disorders and other biological actions such as diuretic, antimicrobial, anthelmintic, anti-ulcer, and hepatoprotective properties. Different crude extracts were extracted from A. echioides leaves using various solvents such as methanol and water. The prepared crude extracts were utilized to formulate different herbal ointments. Further, the prepared ointments were examined against wounds and bacterial pathogens. The wound healing ability of the prepared formulations was observed for F1, F2, and F3, to be (89.84%, 95.11%, and 95.75%) respectively. Moreover, wound healing capabilities were compared with standard Betadine which exhibits 98.12%, those results indicating that the prepared herbal ointment also has a promising wound healing ability. The F2 formulations outperform the other two formulations (F1 and F2) in terms of their antibacterial ability to combat Staphylococcus aureus, Klebsiella pneumoniae Bacillus subtilis, and Escherichia coli. Moreover, there are two compounds were successfully isolated and identified from methanolic extract, which are 2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol and 3-(3,4-Dihydroxyphenyl)-2-propenoic acid. Meanwhile, the molecular docking investigation exposed high binding energy Staphylococcus aureus TyrRS (-8.9 kcal/mol), Isoleucyl-tRNA synthetase (-7.5 kcal/mol), Penicillin-binding protein 2a (-8.0 kcal/mol), S. aureus DNA Gyrase (-7.2 kcal/mol), GSK-3beta (Glycogen synthase kinase-3 beta) (-8.3 kcal/mol) and TGF - Beta Receptor Type 1 Kinase Domain (-8.7 kcal/mol) indicating high degree of interaction between Compound-1 2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol (DHPDHC) and 7 clinically important skin infective pathogen Staphylococcus aureus proteins at the active sites. Additionally, the standard drug Povidone iodine, Sulphothiazole, and Nitrofurazone (<-8 kcal/mol), displayed low binding affinity on targeted proteins. A molecular dynamics simulation research with high free energy showed stable interaction between the ligand and protein. Which endorses the capabilities of A. echioides derived compounds as a potential wound healer and antibacterial therapeutic candidate for drug development in the future.
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Affiliation(s)
- Mathivanan Dhamodiran
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore, 632014, Tamil Nadu, India
| | - Kamaraj Chinnaperumal
- Interdisciplinary Institute of Indian System of Medicine (IIISM), Directorate of Research, SRM Institute of Science and Technology (SRMIST), Chengalpattu District, Kattankulathur, 603203, Tamil Nadu, India.
| | - Dhanish J
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore, 632014, Tamil Nadu, India
| | - Geetha Venkatesan
- Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600 077, India
| | - Maha A Alshiekheid
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box -2455, Riyadh - 11451, Saudi Arabia
| | - S R Suseem
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore, 632014, Tamil Nadu, India.
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Zurita A, Vega Hissi E, Cianci Romero A, Luján AM, Salido S, Yaneff A, Davio C, Cobo J, Carpinella MC, Enriz RD. Rosmarinic Acid Present in Lepechinia floribunda and Lepechinia meyenii as a Potent Inhibitor of the Adenylyl Cyclase gNC1 from Giardia lamblia. PLANTS (BASEL, SWITZERLAND) 2024; 13:646. [PMID: 38475493 DOI: 10.3390/plants13050646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024]
Abstract
Giardiasis is a parasitosis caused by Giardia lamblia with significant epidemiological and clinical importance due to its high prevalence and pathogenicity. The lack of optimal therapies for treating this parasite makes the development of new effective chemical entities an urgent need. In the search for new inhibitors of the adenylyl cyclase gNC1 obtained from G. lamblia, 14 extracts from Argentinian native plants were screened. Lepechinia floribunda and L. meyenii extracts exhibited the highest gNC1 inhibitory activity, with IC50 values of 9 and 31 µg/mL, respectively. In silico studies showed rosmarinic acid, a hydroxycinnamic acid present in both mentioned species, to be a promising anti-gNC1 compound. This result was confirmed experimentally, with rosmarinic acid showing an IC50 value of 10.1 µM. Theoretical and experimental findings elucidate the molecular-level mechanism of rosmarinic acid, pinpointing the key interactions stabilizing the compound-enzyme complex and the binding site. These results strongly support that rosmarinic acid is a promising scaffold for developing novel compounds with inhibitory activity against gNC1, which could serve as potential therapeutic agents to treat giardiasis.
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Affiliation(s)
- Adolfo Zurita
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas (IMIBIO-SL), Ejército de los Andes 950, San Luis 5700, Argentina
| | - Esteban Vega Hissi
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas (IMIBIO-SL), Ejército de los Andes 950, San Luis 5700, Argentina
| | - Agostina Cianci Romero
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas (IMIBIO-SL), Ejército de los Andes 950, San Luis 5700, Argentina
| | - Adela María Luján
- Laboratorio de Química Fina y Productos Naturales, Centro de Investigación y Desarrollo en Inmunología y Enfermedades Infecciosas (CIDIE) CONICET-UCC, Universidad Católica de Córdoba, Avda. Armada Argentina 3555, Córdoba X5016DHK, Argentina
| | - Sofía Salido
- Departamento de Química Inorgánica y Orgánica, Universidad de Jaén, Campus Las Lagunillas s/n, 23071 Jaén, Spain
| | - Agustín Yaneff
- Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, Buenos Aires C1113AAD, Argentina
| | - Carlos Davio
- Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, Buenos Aires C1113AAD, Argentina
| | - Justo Cobo
- Departamento de Química Inorgánica y Orgánica, Universidad de Jaén, Campus Las Lagunillas s/n, 23071 Jaén, Spain
| | - María Cecilia Carpinella
- Laboratorio de Química Fina y Productos Naturales, Centro de Investigación y Desarrollo en Inmunología y Enfermedades Infecciosas (CIDIE) CONICET-UCC, Universidad Católica de Córdoba, Avda. Armada Argentina 3555, Córdoba X5016DHK, Argentina
| | - Ricardo Daniel Enriz
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas (IMIBIO-SL), Ejército de los Andes 950, San Luis 5700, Argentina
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4
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Moiketsi BN, Makale KPP, Rantong G, Rahube TO, Makhzoum A. Potential of Selected African Medicinal Plants as Alternative Therapeutics against Multi-Drug-Resistant Bacteria. Biomedicines 2023; 11:2605. [PMID: 37892979 PMCID: PMC10604549 DOI: 10.3390/biomedicines11102605] [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: 05/30/2023] [Revised: 09/04/2023] [Accepted: 09/18/2023] [Indexed: 10/29/2023] Open
Abstract
Antimicrobial resistance is considered a "One-Health" problem, impacting humans, animals, and the environment. The problem of the rapid development and spread of bacteria resistant to multiple antibiotics is a rising global health threat affecting both rich and poor nations. Low- and middle-income countries are at highest risk, in part due to the lack of innovative research on the surveillance and discovery of novel therapeutic options. Fast and effective drug discovery is crucial towards combatting antimicrobial resistance and reducing the burden of infectious diseases. African medicinal plants have been used for millennia in folk medicine to cure many diseases and ailments. Over 10% of the Southern African vegetation is applied in traditional medicine, with over 15 species being partially or fully commercialized. These include the genera Euclea, Ficus, Aloe, Lippia. And Artemisia, amongst many others. Bioactive compounds from indigenous medicinal plants, alone or in combination with existing antimicrobials, offer promising solutions towards overcoming multi-drug resistance. Secondary metabolites have different mechanisms and modes of action against bacteria, such as the inhibition and disruption of cell wall synthesis; inhibition of DNA replication and ATP synthesis; inhibition of quorum sensing; inhibition of AHL or oligopeptide signal generation, broadcasting, and reception; inhibition of the formation of biofilm; disruption of pathogenicity activities; and generation of reactive oxygen species. The aim of this review is to highlight some promising traditional medicinal plants found in Africa and provide insights into their secondary metabolites as alternative options in antibiotic therapy against multi-drug-resistant bacteria. Additionally, synergism between plant secondary metabolites and antibiotics has been discussed.
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Affiliation(s)
| | | | | | - Teddie O. Rahube
- Department of Biological Sciences and Biotechnology, Faculty of Science, Botswana International University of Science and Technology (BIUST), Private Bag 16, Palapye, Botswana; (B.N.M.); (K.P.P.M.); (G.R.)
| | - Abdullah Makhzoum
- Department of Biological Sciences and Biotechnology, Faculty of Science, Botswana International University of Science and Technology (BIUST), Private Bag 16, Palapye, Botswana; (B.N.M.); (K.P.P.M.); (G.R.)
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5
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Hassan S, Ahmad B, Khan MW, Shah ZA, Ullah A, Ullah S, Khan D, Rizwan M, Ahmad A, Ali Q, Kaushik P, Yilmaz S. Cytotoxic Activity of Phytoconstituents Isolated from Monotheca buxifolia against Hepatocellular Carcinoma Cell Line HepG2: In Vitro and Molecular Docking Studies. ACS OMEGA 2023; 8:33572-33579. [PMID: 37744864 PMCID: PMC10515345 DOI: 10.1021/acsomega.3c03705] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/23/2023] [Indexed: 09/26/2023]
Abstract
Natural products and conventional chemotherapeutic drugs are believed to enhance anticancer treatment efficacy while lowering toxicity. The current study investigates the cytotoxic and apoptogenic effects of Monotheca buxifolia bioactive compounds on HepG2 cell lines. MTT assay was used to assess the effect on the viability of HepG2 cells. Morphological changes were investigated. Annexin-V-FITC/PI was used to demonstrate apoptotic activity. A molecular dynamics simulation study was carried out to investigate the compound binding pattern in the active site of the PPRAδ protein. MTT and annexin V-FITC/PI assays revealed that the isolated compounds lauric acid, oleanolic acid, and bis(2-ethylhexyl) phthalate inhibited the growth of hepatocellular cancer cells. The IC50 value for lauric acid was 56.46 ± 1.20 μg/mL, 31.94 ± 1.03 μg/mL for oleanolic acid, and 83.80 ± 2.18 μg/mL for bis(2-ethylhexyl) phthalate. Apoptosis was observed in 29.5, 52.1 and 22.4% of HepG2 cells treated with lauric acid, oleanolic acid, and bis(2-ethylhexyl) phthalate, respectively, after 24 h of treatment. Morphological assays and Hoechst staining microscopy revealed that the treatment caused morphological changes in the cell membrane and nuclear condensation. The high fluctuation indicates that various interactions were highly potent and widely adopted, and vice versa. Oleanolic acid displayed high residue fluctuation, remaining stable in the active site of the PPRAδ protein and involved in various interactions while remaining locally fluctuating in the binding sites of the other two compounds. These findings concluded that lauric acid, oleanolic acid, and bis(2-ethylhexyl) phthalate have a significant apoptogenic effect against HepG2 cells in inducing apoptosis. Our findings suggest that these bioactive compounds could be used as adjuvant therapies.
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Affiliation(s)
- Said Hassan
- Institute
of Biotechnology and Microbiology, Bacha
Khan University Charsadda, Charsadda 24420, Pakistan
| | - Bashir Ahmad
- Center
of Biotechnology and Microbiology, University
of Peshawar, Peshawar 25120, Pakistan
| | - Muhammad Waseem Khan
- Institute
of Pharmaceutical Sciences, Khyber Medical
University, Peshawar 25001, Pakistan
| | - Zafar Abbass Shah
- Department
of Bioinformatics, Hazara University Mansehra, Mansehra 21300, Pakistan
| | - Amin Ullah
- Department
of Health & Biological Sciences, Abasyn
University, Peshawar 25120, Pakistan
| | - Sana Ullah
- Department
of Zoology, Division of Science and Technology, University of Education, Lahore 54000, Pakistan
| | - Dilfaraz Khan
- Institute
of Chemical Sciences, Gomal University Dera Ismail Khan 29050, Pakistan
| | - Muhammad Rizwan
- Center
for Biotechnology and Microbiology, Swat
University, Swat 19130, Pakistan
| | - Ajaz Ahmad
- Department
of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Qurban Ali
- Department
of Plant Breeding and Genetics, Faculty of Agricultural Sciences, University of the Punjab Lahore 54590, Pakistan
| | - Prashant Kaushik
- Instituto de Conservación y Mejora
de la Agrodiversidad Valenciana, Universitat
Politècnica de València, Valencia 46022, Spain
| | - Semih Yilmaz
- Department of Agriculture Biotechnology,
Division of Enzyme and Microbial
Biotechnology, Erciyes University, Talas 38280, Turkey
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6
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Woo S, Marquez L, Crandall WJ, Risener CJ, Quave CL. Recent advances in the discovery of plant-derived antimicrobial natural products to combat antimicrobial resistant pathogens: insights from 2018-2022. Nat Prod Rep 2023; 40:1271-1290. [PMID: 37439502 PMCID: PMC10472255 DOI: 10.1039/d2np00090c] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Covering: 2018 to 2022Antimicrobial resistance (AMR) poses a significant global health threat. There is a rising demand for innovative drug scaffolds and new targets to combat multidrug-resistant bacteria. Before the advent of antibiotics, infections were treated with plants chosen from traditional medicine practices. Of Earth's 374 000 plant species, approximately 9% have been used medicinally, but most species remain to be investigated. This review illuminates discoveries of antimicrobial natural products from plants covering 2018 to 2022. It highlights plant-derived natural products with antibacterial, antivirulence, and antibiofilm activity documented in lab studies. Additionally, this review examines the development of novel derivatives from well-studied parent natural products, as natural product derivatives have often served as scaffolds for anti-infective agents.
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Affiliation(s)
- Sunmin Woo
- Center for the Study of Human Health, Emory University, USA
| | - Lewis Marquez
- Molecular and Systems Pharmacology Program, Laney Graduate School, Emory University, USA
| | - William J Crandall
- Molecular and Systems Pharmacology Program, Laney Graduate School, Emory University, USA
| | - Caitlin J Risener
- Molecular and Systems Pharmacology Program, Laney Graduate School, Emory University, USA
| | - Cassandra L Quave
- Center for the Study of Human Health, Emory University, USA
- Department of Dermatology, Emory University School of Medicine, USA.
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7
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Serrano CA, Villena GK, Rodríguez EF, Calsino B, Ludeña MA, Ccana-Ccapatinta GV. Phytochemical analysis for ten Peruvian Mentheae (Lamiaceae) by liquid chromatography associated with high resolution mass spectrometry. Sci Rep 2023; 13:10714. [PMID: 37400603 DOI: 10.1038/s41598-023-37830-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 06/28/2023] [Indexed: 07/05/2023] Open
Abstract
The profile of secondary metabolites in ten members of tribe Mentheae (Nepetoideae, Lamiaceae) from Peru by liquid chromatography associated with high resolution mass spectrometry, is presented. Salvianolic acids and their precursors were found, particularly rosmarinic acid, caffeic acid ester derivatives, as well as a diversity of free and glycosylated flavonoids as main substances. At all, 111 structures were tentatively identified.
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Affiliation(s)
- Carlos A Serrano
- Laboratorio de Química Orgánica, Universidad Nacional de San Antonio Abad del Cusco, Cusco, Peru.
| | - Gretty K Villena
- Laboratorio de Micología y Biotecnología, Universidad Nacional Agraria La Molina, Lima, Peru
| | - Eric F Rodríguez
- Herbarium Truxillense (HUT), Universidad Nacional de Trujillo, Trujillo, Peru
| | | | - Michael A Ludeña
- Laboratorio de Química Orgánica, Universidad Nacional de San Antonio Abad del Cusco, Cusco, Peru
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8
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Tumpa NI, Chowdhury MHU, Asma AA. Deciphering the antimicrobial, antibiofilm and membrane stabilizing synergism of Mikania scandens (L.) Willd. leaves and stems substantiation through in vitro and in silico studies. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2023; 38:e00797. [PMID: 37124472 PMCID: PMC10131130 DOI: 10.1016/j.btre.2023.e00797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/23/2023] [Accepted: 04/15/2023] [Indexed: 05/02/2023]
Abstract
Considering the traditional application of Mikania scandens (L.) Willd. against wounds and itching. Leaves (MSL) and stems (MSS) were sequentially extracted using solvents petroleum-ether, carbon-tetrachloride, chloroform, ethyl-acetate and ethanol. Disk-diffusion assay revealed the ethyl acetate MSL and MSS extracts were the prominent against ten bacteria, five carbapenem-resistant bacteria and one fungal strains. Subsequent quantitative antimicrobial analysis specified MSL extractives more potent over MSS with lower 1500 and 3500µg/ml MIC and MBC value in both gram-negative and positive bacteria. These sturdiest ethyl-acetate MSL extractives antimicrobial efficiency also fostered fungicidal activity having lower 100µg/ml MFC. Whereat, almost homologous 160-180 min timing noted liken to standard ciprofloxacin susceptibility in both strains, 75% biofilm inhibition at 2×MIC concentration along with 92±0.2% membrane stabilizing activities over synthetic counterparts prospected in preceding standard extractives. Computational molecular docking of MSL compounds supported this findings therefore forego this valuable synergistic insight as antimicrobial agents to efficiently eradicate human infections.
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Affiliation(s)
- Nadia Islam Tumpa
- Department of Microbiology, University of Chittagong, Chattogram-4331, Bangladesh
| | - Md. Helal Uddin Chowdhury
- Ethnobotany and Pharmacognosy Lab, Department of Botany, University of Chittagong, Chattogram-4331, Bangladesh
- Corresponding author at: Research Assistant, Ethnobotany and Pharmacognosy Lab, Department of Botany, Faculty of Biological Sciences, University of Chittagong, Chattogram, 4331, Bangladesh.
| | - Ankhy Alamgir Asma
- Ethnobotany and Pharmacognosy Lab, Department of Botany, University of Chittagong, Chattogram-4331, Bangladesh
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9
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Reguigui A, Ott PG, Darcsi A, Bakonyi J, Romdhane M, Móricz ÁM. Nine-dimensional bioprofiles of Tunisian sages (Salvia officinalis, S. aegyptiaca and S. verbenaca) by high-performance thin-layer chromatography - effect-directed analyses. J Chromatogr A 2023; 1688:463704. [PMID: 36528897 DOI: 10.1016/j.chroma.2022.463704] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/05/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
Ethyl acetate extracts of Tunisian Salvia aegyptiaca and S. verbenaca aerial parts and S. officinalis leaves were examined via bioanalytical profiling using high-performance thin-layer chromatography (HPTLC) combined with nine bioactivity assays, namely antibacterial (Aliivibrio fischeri, Bacillus subtilis, and Rhodococcus fascians), antifungal (Bipolaris sorokiniana, and Fusarium avenaceum), radical scavenging (DPPH•), and enzyme inhibitory (α-glucosidase, acetylcholinesterase, and lipase) ones. The screening, using toluene - ethyl acetate - methanol 6:3:0.5 (V/V/V) as a mobile phase, revealed five bioactive zones (a-e) that were analyzed by HPTLC-electrospray ionization-mass spectrometry (ESI-MS). Zones b and c, observed exclusively in S. officinalis, were active in all assays except α-glucosidase, and only c inhibited F. avenaceum. Compounds in these zones were identified by HPLC-high resolution tandem MS (LC-HRMS/MS) as rosmanol/epi-rosmanol and methyl carnosate, respectively. In the bioactive zones a and e, corosolic/maslinic acid and ursolic/oleanolic acid isomer pairs were present, which could be identified in all three Salvia species after their HPTLC separation using pre-chromatographic derivatization with iodine and MS detection. The triterpenes inhibited B. subtilis and R. fascians bacteria and α-glucosidase enzyme. Linoleic and linolenic acids were detected in zone d, which showed strong lipase inhibition in all three sage species.
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Affiliation(s)
- Amira Reguigui
- Plant Protection Institute, Centre for Agricultural Research, Herman O. Str. 15, Budapest 1022, Hungary; Energy, Water, Environment and Process Laboratory, (LR18ES35), National Engineering School of Gabes, University of Gabes, Gabes 6072, Tunisia
| | - Péter G Ott
- Plant Protection Institute, Centre for Agricultural Research, Herman O. Str. 15, Budapest 1022, Hungary
| | - András Darcsi
- Pharmaceutical Chemistry and Technology Department, National Institute of Pharmacy and Nutrition, Szabolcs Str. 33, Budapest 1135, Hungary
| | - József Bakonyi
- Plant Protection Institute, Centre for Agricultural Research, Herman O. Str. 15, Budapest 1022, Hungary
| | - Mehrez Romdhane
- Energy, Water, Environment and Process Laboratory, (LR18ES35), National Engineering School of Gabes, University of Gabes, Gabes 6072, Tunisia
| | - Ágnes M Móricz
- Plant Protection Institute, Centre for Agricultural Research, Herman O. Str. 15, Budapest 1022, Hungary.
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10
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Gil F, Laiolo J, Bayona-Pacheco B, Cannon RD, Ferreira-Pereira A, Carpinella MC. Extracts from Argentinian native plants reverse fluconazole resistance in Candida species by inhibiting the efflux transporters Mdr1 and Cdr1. BMC Complement Med Ther 2022; 22:264. [PMID: 36224581 PMCID: PMC9555179 DOI: 10.1186/s12906-022-03745-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 09/26/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The development of multidrug resistance (MDR) associated with the overexpression of the efflux transporters Mdr1 and Cdr1 in Candida species impedes antifungal therapies. The urgent need for novel agents able to inhibit the function of both pumps, led us to evaluate this property in 137 extracts obtained from Argentinian plants. METHODS The ability of the extracts to reverse efflux pump-mediated MDR was determined with an agar chemosensitization assay using fluconazole (FCZ) resistant Mdr1- and Cdr1-overexpressing clinical isolates of Candida albicans and Candida glabrata as well as Saccharomyces cerevisiae strains selectively expressing Mdr1 (AD/CaMDR1) or Cdr1 (AD/CaCDR1). The resistance-reversing activity of the most potent extracts was further confirmed using a Nile Red accumulation assay. RESULTS Fifteen plant extracts overcame the FCZ resistance of Candida albicans 1114, which overexpresses CaMdr1 and CaCdr1, and AD/CaMDR1, with those from Acalypha communis and Solanum atriplicifolium being the most effective showing 4- to 16-fold reversal of resistance at concentrations ≥ 25 µg/mL. Both extracts, and to a lesser extent that from Pterocaulon alopecuroides, also restored FCZ sensitivity in CgCdr1-overexpressing C. glabrata 109 and in AD/CaCDR1 with fold reversal values ranging from 4 to 32 and therefore demonstrating a dual effect against Mdr1 and Cdr1. Both, A. communis and S. atriplicifolium extracts at concentrations ≥ 12.5 and ≥ 25 µg/mL, respectively, increased the intracellular Nile Red accumulation in all yeast strains overexpressing efflux pumps. CONCLUSIONS The non-toxic and highly active extracts from A. communis and S. atripicifolium, provide promising sources of compounds for potentiating the antifungal effect of FCZ by blocking the efflux function of Mdr1 and Cdr1 transporters.
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Affiliation(s)
- Florimar Gil
- grid.411954.c0000 0000 9878 4966Fine Chemical and Natural Products Laboratory, IRNASUS CONICET-UCC, Universidad Católica de Córdoba, Avda. Armada Argentina 3555, X5016DHK Córdoba, Argentina
| | - Jerónimo Laiolo
- grid.411954.c0000 0000 9878 4966Fine Chemical and Natural Products Laboratory, IRNASUS CONICET-UCC, Universidad Católica de Córdoba, Avda. Armada Argentina 3555, X5016DHK Córdoba, Argentina
| | - Brayan Bayona-Pacheco
- grid.412188.60000 0004 0486 8632Department of Medicine, Division of Health Science, Universidad del Norte, Km 5, Vía Puerto Colombia, Área Metropolitana de Barranquilla, 081007 Barranquilla, Colombia ,grid.8536.80000 0001 2294 473XLaboratory of Microbial Biochemistry, Institute of Microbiology Paulo de Góes, Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, Av. Carlos Chagas Filho, 373, Bloco I, Sala 44, Rio de Janeiro, RJ 21949-902 Brazil
| | - Richard D. Cannon
- grid.29980.3a0000 0004 1936 7830Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, PO Box 647, Dunedin, 9054 New Zealand
| | - Antonio Ferreira-Pereira
- grid.8536.80000 0001 2294 473XLaboratory of Microbial Biochemistry, Institute of Microbiology Paulo de Góes, Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, Av. Carlos Chagas Filho, 373, Bloco I, Sala 44, Rio de Janeiro, RJ 21949-902 Brazil
| | - María Cecilia Carpinella
- grid.411954.c0000 0000 9878 4966Fine Chemical and Natural Products Laboratory, IRNASUS CONICET-UCC, Universidad Católica de Córdoba, Avda. Armada Argentina 3555, X5016DHK Córdoba, Argentina
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11
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Llorens de los Ríos MC, Lanza PA, Barbieri CL, González ML, Chabán MF, Soria G, Vera DMA, Carpinella MC, Joray MB. The thiophene α-terthienylmethanol isolated from Tagetes minuta inhibits angiogenesis by targeting protein kinase C isozymes α and β2. Front Pharmacol 2022; 13:1007790. [PMID: 36313304 PMCID: PMC9597362 DOI: 10.3389/fphar.2022.1007790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 09/30/2022] [Indexed: 11/24/2022] Open
Abstract
Background: Tumor angiogenesis is considered as a crucial pathologic feature of cancer with a key role in multidrug resistance (MDR). Adverse effects of the currently available drugs and the development of resistance to these remain as the hardest obstacles to defeat. Objetive: This work explores flora from Argentina as a source of new chemical entities with antiangiogenic activity. Methods: Tube formation assay using bovine aortic endothelial cells (BAECs) was the experiment of choice to assess antiangiogenic activity. The effect of the pure compound in cell invasiveness was investigated through the trans-well migration assay. The inhibitory effect of the pure compound on VEGFR-2 and PKC isozymes α and β2 activation was studied by molecular and massive dynamic simulations. Cytotoxicity on peripheral blood mononuclear cells and erythrocyte cells was evaluated by means of MTT and hemolysis assay, respectively. In silico prediction of pharmacological properties (ADME) and evaluation of drug-likeness features were performed using the SwissADME online tool. Results: Among the plants screened, T. minuta, showed an outstanding effect with an IC50 of 33.6 ± 3.4 μg/ml. Bio-guided isolation yielded the terthiophene α-terthienylmethanol as its active metabolite. This compound inhibited VEGF-induced tube formation with an IC50 of 2.7 ± 0.4 μM and significantly impaired the invasiveness of bovine aortic endothelial cells (BAECs) as well as of the highly aggressive breast cancer cells, MDA-MB-231, when tested at 10 μM. Direct VEGFR-2 and PKC inhibition were both explored by means of massive molecular dynamics simulations. The results obtained validated the inhibitory effect on protein kinase C (PKC) isozymes α and β2 as the main mechanism underlying its antiangiogenic activity. α-terthienylmethanol showed no evidence of toxicity against peripheral blood mononuclear and erythrocyte cells. Conclusion: These findings support this thiophene as a promising antiangiogenic phytochemical to fight against several types of cancer mainly those with MDR phenotype.
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Affiliation(s)
| | - Priscila A. Lanza
- Department of Chemistry and Biochemistry, QUIAMM–INBIOTEC–CONICET, College of Exact and Natural Sciences, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Cecilia L. Barbieri
- Department of Chemistry and Biochemistry, QUIAMM–INBIOTEC–CONICET, College of Exact and Natural Sciences, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - María L. González
- Fine Chemical and Natural Products Laboratory, IRNASUS CONICET-UCC, School of Chemistry, Universidad Católica de Córdoba, Córdoba, Argentina
| | - Macarena Funes Chabán
- Fine Chemical and Natural Products Laboratory, IRNASUS CONICET-UCC, School of Chemistry, Universidad Católica de Córdoba, Córdoba, Argentina
| | - Gastón Soria
- CIBICI CONICET and Department of Clinical Biochemistry, Faculty of Chemical Science, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - D. Mariano A. Vera
- Department of Chemistry and Biochemistry, QUIAMM–INBIOTEC–CONICET, College of Exact and Natural Sciences, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- *Correspondence: D. Mariano A. Vera, ; María C. Carpinella, ; Mariana B. Joray,
| | - María C. Carpinella
- Fine Chemical and Natural Products Laboratory, IRNASUS CONICET-UCC, School of Chemistry, Universidad Católica de Córdoba, Córdoba, Argentina
- *Correspondence: D. Mariano A. Vera, ; María C. Carpinella, ; Mariana B. Joray,
| | - Mariana B. Joray
- Fine Chemical and Natural Products Laboratory, IRNASUS CONICET-UCC, School of Chemistry, Universidad Católica de Córdoba, Córdoba, Argentina
- *Correspondence: D. Mariano A. Vera, ; María C. Carpinella, ; Mariana B. Joray,
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12
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Martins SMA, Cavalcante KSB, Teles RDM, Brandão CM, Godinho AS, Silva LK, Holanda CA, da Rocha CQ. Chemical profiling of Dizygostemon riparius (Plantaginaceae) plant extracts and its application against larvae of Aedes aegypti L. (Diptera: Culicidae). Acta Trop 2022; 237:106706. [PMID: 36191628 DOI: 10.1016/j.actatropica.2022.106706] [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: 07/11/2022] [Revised: 09/28/2022] [Accepted: 09/29/2022] [Indexed: 11/16/2022]
Abstract
Dengue fever is a reemerging disease of global concern among health authorities due to its high rate of proliferation. In 2019, Brazil registered its second-highest dengue mortality rate since 1998, with approximately 754 deaths and 1.5 million probable cases. Brazilian Ministry of Health prevention and control strategies for Aedes include insecticides, eradication of breeding sites, and awareness campaigns. However, as new mosquito variants resistant to conventional insecticides emerge, there is an increasing demand for effective environment-friendly plant extracts and natural substances against adult mosquitos and/or larvae of Aedes aegypti L. with no negative impacts on human health. This study aimed to investigate the larvicidal activity of Dizygostemon riparius extracts and analyze its chemical profile for the first time. Dizygostemon is a Plantaginaceae bytipic genus and D. riparius is an aromatic plant recently identified in Maranhão, Brazil. The essential oil from its lilac morphotype already exhibited larvicidal potential against Aedes albopictus, but the still limited data on this new plant species require further chemical and biological studies on other species, such as Aedes aegypti. Ethyl acetate and methanol crude leaf extracts yielded, respectively, 17.60 and 25.96%. High-performance liquid chromatography (HPLC) with UV detection coupled with electrospray ionization mass spectrometry (HPLC-UV-ESI-IT/MS) analyses confirmed the presence of polymethoxyflavones and coumarins, such as isorhamnetin 3-galactoside-7-rhamnoside, 5,7-dihydroxy-3-(3-hydroxy-4,5-dimethoxyphenyl)-6-methoxy-4-benzopyrone and 3',5-dihydroxy-4',6,7-trimethoxyflavone. Ethyl acetate extract presented the best performance in larvicide bioassays (LC50 = 542.2±11.5 µg.mL-1). Our results highlight the chemical and biological potential of this new species found in the cerrado of eastern Maranhão and open perspectives for future studies focusing on isolating and identifying other active secondary metabolites of Dizygostemon riparius.
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Affiliation(s)
- Suzi Morais Aires Martins
- Laboratory of Biomass, Environmental Chemistry Graduate Program, Federal Institute of Education, Science and Technology of Maranhão, Campus São Luis-Monte Castelo, 65030-005, São Luís, MA, Brazil.
| | - Kiany Sirley Brandão Cavalcante
- Graduate Program in Chemistry, Federal Institute of Maranhão, Campus São Luis-Monte Castelo, 65030-005, São Luis, MA, Brazil.
| | - Rogério de Mesquita Teles
- Graduate Program in Chemistry, Federal Institute of Maranhão, Campus São Luis-Monte Castelo, 65030-005, São Luis, MA, Brazil.
| | - Clenilma Marques Brandão
- Graduate Program in Chemistry, Federal Institute of Maranhão, Campus São Luis-Monte Castelo, 65030-005, São Luis, MA, Brazil.
| | - Allan Sampaio Godinho
- Laboratory of Biomass, Environmental Chemistry Graduate Program, Federal Institute of Education, Science and Technology of Maranhão, Campus São Luis-Monte Castelo, 65030-005, São Luís, MA, Brazil.
| | - Lanna Karinny Silva
- Department of Chemistry, Federal Institute of Education, Science and Technology of Maranhão, Campus São Luis-Monte Castelo, 65030-005, São Luís, MA, Brazil.
| | - Carlos Alexandre Holanda
- Graduate Program in Chemistry, Federal University of Maranhão, Campus Imperatriz, 65900-410, Imperatriz, MA, Brazil.
| | - Cláudia Quintino da Rocha
- Institute of Biosciences, Coastal Campus of São Vicente, State University of Paulista- UNESP, 11330-900, São Vicente, SP, Brasil.
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13
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Vaou N, Stavropoulou E, Voidarou C(C, Tsakris Z, Rozos G, Tsigalou C, Bezirtzoglou E. Interactions between Medical Plant-Derived Bioactive Compounds: Focus on Antimicrobial Combination Effects. Antibiotics (Basel) 2022; 11:antibiotics11081014. [PMID: 36009883 PMCID: PMC9404952 DOI: 10.3390/antibiotics11081014] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/24/2022] [Accepted: 07/25/2022] [Indexed: 11/24/2022] Open
Abstract
It is accepted that the medicinal use of complex mixtures of plant-derived bioactive compounds is more effective than purified bioactive compounds due to beneficial combination interactions. However, synergy and antagonism are very difficult to study in a meticulous fashion since most established methods were designed to reduce the complexity of mixtures and identify single bioactive compounds. This study represents a critical review of the current scientific literature on the combined effects of plant-derived extracts/bioactive compounds. A particular emphasis is provided on the identification of antimicrobial synergistic or antagonistic combinations using recent metabolomics methods and elucidation of approaches identifying potential mechanisms that underlie their interactions. Proven examples of synergistic/antagonistic antimicrobial activity of bioactive compounds are also discussed. The focus is also put on the current challenges, difficulties, and problems that need to be overcome and future perspectives surrounding combination effects. The utilization of bioactive compounds from medicinal plant extracts as appropriate antimicrobials is important and needs to be facilitated by means of new metabolomics technologies to discover the most effective combinations among them. Understanding the nature of the interactions between medicinal plant-derived bioactive compounds will result in the development of new combination antimicrobial therapies.
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Affiliation(s)
- Natalia Vaou
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece;
- Correspondence: (N.V.); or (E.S.)
| | - Elisavet Stavropoulou
- Centre Hospitalier Universitaire Vaudois (CHUV), 1101 Lausanne, Switzerland
- Correspondence: (N.V.); or (E.S.)
| | - Chrysoula (Chrysa) Voidarou
- Department of Agriculture, School of Agriculture, University of Ioannina, 47100 Arta, Greece; (C.V.); (G.R.)
| | - Zacharias Tsakris
- Laboratory of Microbiology, Department of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Georgios Rozos
- Department of Agriculture, School of Agriculture, University of Ioannina, 47100 Arta, Greece; (C.V.); (G.R.)
| | - Christina Tsigalou
- Laboratory of Microbiology, Department of Medicine, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece;
| | - Eugenia Bezirtzoglou
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece;
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14
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Zuo G, Je KH, Guillen Quispe YN, Shin KO, Kim HY, Kim KH, Arce PHG, Lim SS. Separation and Identification of Antioxidants and Aldose Reductase Inhibitors in Lepechinia meyenii (Walp.) Epling. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10122773. [PMID: 34961244 PMCID: PMC8707451 DOI: 10.3390/plants10122773] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/10/2021] [Accepted: 12/10/2021] [Indexed: 05/08/2023]
Abstract
We previously reported that Lepechinia meyenii (Walp.) Epling has antioxidant and aldose reductase (AR) inhibitory activities. In this study, L. meyenii was extracted in a 50% MeOH and CH2Cl2/MeOH system. The active extracts of MeOH and 50% MeOH were subjected to fractionation, followed by separation using high-speed counter-current chromatography (HSCCC) and preparative HPLC. Separation and identification revealed the presence of caffeic acid, hesperidin, rosmarinic acid, diosmin, methyl rosmarinate, diosmetin, and butyl rosmarinate. Of these, rosmarinic acid, methyl rosmarinate, and butyl rosmarinate possessed remarkable antioxidant and AR inhibitory activities. The other compounds were less active. In particular, rosmarinic acid is the key contributor to the antioxidant and AR inhibitory activities of L. meyenii; it is rich in the MeOH extract (333.84 mg/g) and 50% MeOH extract (135.41 mg/g) of L. meyenii and is especially abundant in the EtOAc and n-BuOH fractions (373.71-804.07 mg/g) of the MeOH and 50% MeOH extracts. The results clarified the basis of antioxidant and AR inhibitory activity of L. meyenii, adding scientific evidence supporting its traditional use as an anti-diabetic herbal medicine. The HSCCC separation method established in this study can be used for the preparative separation of rosmarinic acid from natural products.
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Affiliation(s)
- Guanglei Zuo
- Department of Food Science and Nutrition, Hallym University, 1 Hallymdeahak-gil, Chuncheon 24252, Korea; (G.Z.); (K.-O.S.); (H.Y.K.); (K.H.K.)
| | - Kang-Hoon Je
- Institute of Korean Nutrition, Hallym University, 1 Hallymdeahak-gil, Chuncheon 24252, Korea;
| | - Yanymee N. Guillen Quispe
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151742, Korea;
| | - Kyong-Oh Shin
- Department of Food Science and Nutrition, Hallym University, 1 Hallymdeahak-gil, Chuncheon 24252, Korea; (G.Z.); (K.-O.S.); (H.Y.K.); (K.H.K.)
| | - Hyun Yong Kim
- Department of Food Science and Nutrition, Hallym University, 1 Hallymdeahak-gil, Chuncheon 24252, Korea; (G.Z.); (K.-O.S.); (H.Y.K.); (K.H.K.)
| | - Kang Hyuk Kim
- Department of Food Science and Nutrition, Hallym University, 1 Hallymdeahak-gil, Chuncheon 24252, Korea; (G.Z.); (K.-O.S.); (H.Y.K.); (K.H.K.)
| | - Paul H. Gonzales Arce
- Laboratorio de Florística, Departamento de Dicotiledóneas, Museo de Historia Natural—Universidad Nacional Mayor de San Marcos, Avenida Arenales 1256, Lima 14-0434, Peru;
| | - Soon Sung Lim
- Department of Food Science and Nutrition, Hallym University, 1 Hallymdeahak-gil, Chuncheon 24252, Korea; (G.Z.); (K.-O.S.); (H.Y.K.); (K.H.K.)
- Institute of Korean Nutrition, Hallym University, 1 Hallymdeahak-gil, Chuncheon 24252, Korea;
- Institute of Natural Medicine, Hallym University, 1 Hallymdeahak-gil, Chuncheon 24252, Korea
- Correspondence: ; Tel.: +82-33-248-2133; Fax: +82-33-256-3420
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15
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Funes Chabán M, Hrast M, Frlan R, Graikioti DG, Athanassopoulos CM, Carpinella MC. Inhibition of MurA Enzyme from Escherichia coli and Staphylococcus aureus by Diterpenes from Lepechinia meyenii and Their Synthetic Analogs. Antibiotics (Basel) 2021; 10:1535. [PMID: 34943747 PMCID: PMC8698320 DOI: 10.3390/antibiotics10121535] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 12/11/2022] Open
Abstract
Enzymes MurA and MurF, involved in bacterial cell wall synthesis, have been validated as targets for the discovery of novel antibiotics. A panel of plant-origin antibacterial diterpenes and synthetic analogs derived therefrom were investigated for their inhibitory properties on these enzymes from Escherichia coli and Staphylococcus aureus. Six compounds were proven to be effective for inhibiting MurA from both bacteria, with IC50 values ranging from 1.1 to 25.1 µM. To further mechanistically investigate the nature of binding and to explain the activity, these compounds were docked into the active site of MurA from E. coli. The aromatic ring of the active compounds showed a T-shaped π-π interaction with the phenyl ring of Phe328, and at least one hydrogen bond was formed between the hydroxy groups and Arg120 and/or Arg91. The results disclosed here establish new chemical scaffolds for the development of novel entities targeting MurA as potential antibiotics to combat the threat of pathogenic bacteria, particularly resistant strains.
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Affiliation(s)
- Macarena Funes Chabán
- Fine Chemical and Natural Products Laboratory, IRNASUS CONICET-UCC, Universidad Católica de Córdoba, Córdoba 5016, Argentina;
| | - Martina Hrast
- Faculty of Pharmacy, University of Ljubljana, SI-1000 Ljubljana, Slovenia; (M.H.); (R.F.)
| | - Rok Frlan
- Faculty of Pharmacy, University of Ljubljana, SI-1000 Ljubljana, Slovenia; (M.H.); (R.F.)
| | - Dafni G. Graikioti
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, University of Patras, 26504 Patras, Greece; (D.G.G.); (C.M.A.)
| | - Constantinos M. Athanassopoulos
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, University of Patras, 26504 Patras, Greece; (D.G.G.); (C.M.A.)
| | - María Cecilia Carpinella
- Fine Chemical and Natural Products Laboratory, IRNASUS CONICET-UCC, Universidad Católica de Córdoba, Córdoba 5016, Argentina;
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16
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de Lima LB, da Silva WAV, Dos Santos ECF, Machado JCB, Procópio TF, de Moura MC, Napoleão TH, Ferreira MRA, Soares LAL. Evaluation of Antioxidant, Antibacterial and Enhancement of Antibiotic Action by Punica granatum Leaves Crude Extract and Enriched Fraction against Multidrug-Resistant Bacteria. Chem Biodivers 2021; 18:e2100538. [PMID: 34609784 DOI: 10.1002/cbdv.202100538] [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: 07/07/2021] [Accepted: 10/05/2021] [Indexed: 11/06/2022]
Abstract
The aim of this study was to evaluate the phytochemical composition, antioxidant, and antimicrobial potential of crude extract and fractions of Punica granatum leaves. The extract was produced by turbo extraction, after which hexanic, ethyl acetate, and aqueous fractions were obtained by partitioning. The chemical analyses were performed by thin layer chromatography and high-performance liquid chromatography, and the antioxidant activities were assayed by DPPH. and ABTS.+ . Minimal inhibitory and bactericidal concentrations (MIC/MBC) were applied to twenty-two bacteria. Most strains susceptible to extract/fractions and resistant to antibiotics were selected, and ampicillin, azithromycin, ciprofloxacin, and gentamicin were associated with the ethyl acetate fraction (EAF) against multidrug-resistant strains in modulatory and checkboard models. The data from chromatographic analyses showed flavonoids and tannins in the extract, as well as the enrichment of EAF in phenols, mainly flavonoids. The flavonoids were connected to the electron transfer activity demonstrated in the DPPH. and ABTS.+ assays. Gram-positive strains are more susceptible to EAF. The subinhibitory concentrations of P. granatum enhanced the antimicrobial activity of the agents and reduced the EAF individual MIC, and the combination of EAF and antibiotics demonstrated a synergistic effect. These results present a promising approach for developing a therapy in which antioxidant extracts and fractions can be used in combination with antibiotics.
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Affiliation(s)
- Liliane Bezerra de Lima
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Pernambuco, Av. da Engenharia, s/n, Cidade Universitária, 50740-600, Recife-PE, Brazil
| | - Wliana Alves Viturino da Silva
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Pernambuco, Av. da Engenharia, s/n, Cidade Universitária, 50740-600, Recife-PE, Brazil.,Laboratório de Farmacognosia, Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Rua Prof. Artur de Sá, s/n, Cidade Universitária, 50740-521, Recife-PE, Brazil
| | - Ewelyn Cintya Felipe Dos Santos
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Pernambuco, Av. da Engenharia, s/n, Cidade Universitária, 50740-600, Recife-PE, Brazil.,Laboratório de Farmacognosia, Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Rua Prof. Artur de Sá, s/n, Cidade Universitária, 50740-521, Recife-PE, Brazil
| | - Janaína Carla Barbosa Machado
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Pernambuco, Av. da Engenharia, s/n, Cidade Universitária, 50740-600, Recife-PE, Brazil.,Laboratório de Farmacognosia, Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Rua Prof. Artur de Sá, s/n, Cidade Universitária, 50740-521, Recife-PE, Brazil
| | - Thamara Figueiredo Procópio
- Laboratório de Bioquímica de Proteínas, Departamento de Bioquímica, Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, s/n, Cidade Universitária, 50670-420, Recife-PE, Brazil
| | - Maiara Celine de Moura
- Laboratório de Bioquímica de Proteínas, Departamento de Bioquímica, Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, s/n, Cidade Universitária, 50670-420, Recife-PE, Brazil
| | - Thiago Henrique Napoleão
- Laboratório de Bioquímica de Proteínas, Departamento de Bioquímica, Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, s/n, Cidade Universitária, 50670-420, Recife-PE, Brazil
| | - Magda Rhayanny Assunção Ferreira
- Laboratório de Farmacognosia, Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Rua Prof. Artur de Sá, s/n, Cidade Universitária, 50740-521, Recife-PE, Brazil
| | - Luiz Alberto Lira Soares
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Pernambuco, Av. da Engenharia, s/n, Cidade Universitária, 50740-600, Recife-PE, Brazil.,Laboratório de Farmacognosia, Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Rua Prof. Artur de Sá, s/n, Cidade Universitária, 50740-521, Recife-PE, Brazil
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17
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Félix G, Soto-Robles CA, Nava E, Lugo-Medina E. Principal Metabolites in Extracts of Different Plants Responsible for Antibacterial Effects. Chem Res Toxicol 2021; 34:1970-1983. [PMID: 34464103 DOI: 10.1021/acs.chemrestox.1c00161] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The increase in bacterial resistance and decreased effectiveness of antibacterial agents has forced researchers to look for new antibacterial agents from environmentally friendly sources such as essential oils and oil extracts. The functional group of the metabolites present in the essential oils or plant extract and the synergy effects between them play an important role in the biological activity and can be the principal factor affecting the antibacterial effect. All of these bioactive oils showed the same action mechanism, and the best way to implement them is by extracting them without changing their original properties, whereby the characterization and evaluation of the compounds are important steps. All of these themes are extensively reviewed, analyzed, and discussed in this work.
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Affiliation(s)
- Guillermo Félix
- Tecnológico Nacional de México/IT de Los Mochis, C.P. 81259 Los Mochis, Sinaloa México
| | - Carlos A Soto-Robles
- Tecnológico Nacional de México/IT de Los Mochis, C.P. 81259 Los Mochis, Sinaloa México
| | - Eusebio Nava
- Centro Interdisciplinario de Investigación y Desarrollo Regional - Instituto Politécnico Nacional, C.P. 81101 Guasave, Sinaloa México
| | - Eder Lugo-Medina
- Tecnológico Nacional de México/IT de Los Mochis, C.P. 81259 Los Mochis, Sinaloa México
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18
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Khumalo GP, Sadgrove NJ, Van Vuuren SF, Van Wyk BE. South Africa's Best BARK Medicines Prescribed at the Johannesburg Muthi Markets for Skin, Gut, and Lung Infections: MIC's and Brine Shrimp Lethality. Antibiotics (Basel) 2021; 10:681. [PMID: 34200286 PMCID: PMC8227155 DOI: 10.3390/antibiotics10060681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/03/2021] [Accepted: 06/05/2021] [Indexed: 12/03/2022] Open
Abstract
Indigenous trade of medicinal plants in South Africa is a multi-million-rand industry and is still highly relevant in terms of primary health care. The purpose of this study was to identify today's most traded medicinal barks, traditionally and contemporaneously used for dermatological, gastrointestinal, and respiratory tract infections; then, to investigate the antimicrobial activity and toxicity of the respective extracts and interpret outcomes in light of pharmacokinetics. Thirty-one popularly traded medicinal barks were purchased from the Faraday and Kwa Mai-Mai markets in Johannesburg, South Africa. Information on the medicinal uses of bark-based medicines in modern commerce was recorded from randomly selected traders. The minimum inhibitory concentration (MIC) method was used for antimicrobial screening, and brine shrimp lethality was used to determine toxicity. New medicinal uses were recorded for 14 bark species. Plants demonstrating some broad-spectrum activities against tested bacteria include Elaeodendron transvaalense, Erythrina lysistemon, Garcinia livingstonei, Pterocelastrus rostratus, Rapanea melanophloeos, Schotia brachypetala, Sclerocarya birrea, and Ziziphus mucronata. The lowest MIC value of 0.004 mg/mL was observed against Staphylococcus epidermidis for a dichloromethane bark extract of E. lysistemon. The tested medicinal barks were shown to be non-toxic against the Artemia nauplii (brine shrimp) bioassay, except for a methanol extract from Trichilia emetica (69.52% mortality). Bacterial inhibition of bark extracts with minimal associated toxicity is consistent with the safety and valuable use of medicinal barks for local muthi market customers. Antimicrobial outcomes against skin and gastrointestinal pathogens are feasible because mere contact-inhibition is required in vivo; however, MIC values against respiratory pathogens require further explaining from a pharmacokinetics or pharmacodynamics perspective, particularly for ingested rather than smoked therapies.
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Affiliation(s)
- Gugulethu P. Khumalo
- Department of Botany and Plant Biotechnology, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa;
| | - Nicholas J. Sadgrove
- Department of Botany and Plant Biotechnology, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa;
- Jodrell Science Laboratory, Royal Botanic Gardens Kew, Richmond, Surrey TW9 3DS, UK
| | - Sandy F. Van Vuuren
- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Park Town 2193, South Africa;
| | - Ben-Erik Van Wyk
- Department of Botany and Plant Biotechnology, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa;
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19
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Khin M, Knowles SL, Crandall WJ, Jones DD, Oberlies NH, Cech NB, Houriet J. Capturing the antimicrobial profile of Rosmarinus officinalis against methicillin-resistant Staphylococcus aureus (MRSA) with bioassay-guided fractionation and bioinformatics. J Pharm Biomed Anal 2021; 197:113965. [PMID: 33640687 PMCID: PMC8191859 DOI: 10.1016/j.jpba.2021.113965] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 02/02/2021] [Accepted: 02/08/2021] [Indexed: 02/01/2023]
Abstract
Natural products have been a primary source of medicines throughout the history of human existence. It is estimated that close to 70 % of small molecule pharmaceuticals on the market are derived from natural products. With increasing antibiotic resistance, natural products remain an important source for the discovery of novel antimicrobial compounds. The plant rosemary (Rosmarinus officinalis), has been widely and commonly used as a food preservative due to its antimicrobial potential. To evaluate the antimicrobial profile of this plant, we used bioassay-guided fractionation and bioinformatics approaches. Through bioassay-guided fractionation, we tested in vitro activities of a R. officinalis extract and fractions thereof, as well as pure compounds micromeric acid (1), oleanolic acid (2), and ursolic acid (3) against methicillin-resistant Staphylococcus aureus (MRSA). Compounds 1 and 3 showed complete inhibition of MRSA (with MIC values of 32 μg/mL and 8 μg/mL, respectively) while compound 2 displayed only partial inhibition (MIC > 64 μg/mL). In addition, we utilized orthogonal partial least square-discriminant analysis (OPLS-DA) and selectivity ratio (SR) analysis to correlate the isolated compounds 1-3 with the observed antimicrobial activity, as well as to identify antimicrobials present in trace quantities. For mass spectrometry (MS) data collected in the negative ionization mode, compound 1 was the most positively correlated with activity, while for MS data collected in the positive ion mode, compounds 2-3 had the highest positive correlation. Using the bioinformatics approaches, we highlighted additional antimicrobials associated with the antimicrobial activity of R. officinalis, including genkwanin (4), rosmadial (5a) and/or 16-hydroxyrosmadial (5b), rosmanol (6), and hesperetin (7). Compounds 1-3 resulting from the bioassay-guided fractionation were identified by MS-MS fragmentation patterns and 1H NMR spectra. Among the compounds highlighted by the biochemical analysis, compound 6 was identified by comparison with its commercial standard by employed ultra-performance liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS), while 4, 5a-b and 7 were putatively identified based on MS data and in comparison with the literature. This is the first reported antimicrobial activity of micromeric acid (1) against MRSA.
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Affiliation(s)
- Manead Khin
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, 27402, United States; Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, 60612, United States
| | - Sonja L Knowles
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, 27402, United States
| | - William J Crandall
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, 27402, United States; Graduate Division of Biological and Biomedical Sciences, Emory University, Atlanta, GA, 30322, United States
| | - Derick D Jones
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, 27402, United States
| | - Nicholas H Oberlies
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, 27402, United States
| | - Nadja B Cech
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, 27402, United States
| | - Joëlle Houriet
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, 27402, United States.
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20
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Serrano CA, Villena GK, Rodríguez EF. Phytochemical profile and rosmarinic acid purification from two Peruvian Lepechinia Willd. species (Salviinae, Mentheae, Lamiaceae). Sci Rep 2021; 11:7260. [PMID: 33790349 PMCID: PMC8012630 DOI: 10.1038/s41598-021-86692-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 03/18/2021] [Indexed: 12/17/2022] Open
Abstract
The phytochemical profile of Lepechinia meyenii (Walp.) Epling and Lepechina floribunda (Benth.) Epling obtained by liquid chromatography associated with high-resolution mass spectrometry is presented. Forty eight compounds were detected exhibiting a variety of salvianolic acids and abietane phenolic diterpenoids. A simple procedure by cold evaporative crystallization to purify rosmarinic acid from these botanical species was also shown.
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Affiliation(s)
- Carlos A Serrano
- Laboratorio de Química Orgánica, Universidad Nacional de San Antonio Abad del Cusco, Cusco, Peru.
| | - Gretty K Villena
- Laboratorio de Micología y Biotecnología, Universidad Nacional Agraria La Molina, Lima, Peru
| | - Eric F Rodríguez
- Herbarium Truxillense (HUT), Universidad Nacional de Trujillo-Perú, Trujillo, Peru
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21
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Porras G, Chassagne F, Lyles JT, Marquez L, Dettweiler M, Salam AM, Samarakoon T, Shabih S, Farrokhi DR, Quave CL. Ethnobotany and the Role of Plant Natural Products in Antibiotic Drug Discovery. Chem Rev 2021; 121:3495-3560. [PMID: 33164487 PMCID: PMC8183567 DOI: 10.1021/acs.chemrev.0c00922] [Citation(s) in RCA: 138] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The crisis of antibiotic resistance necessitates creative and innovative approaches, from chemical identification and analysis to the assessment of bioactivity. Plant natural products (NPs) represent a promising source of antibacterial lead compounds that could help fill the drug discovery pipeline in response to the growing antibiotic resistance crisis. The major strength of plant NPs lies in their rich and unique chemodiversity, their worldwide distribution and ease of access, their various antibacterial modes of action, and the proven clinical effectiveness of plant extracts from which they are isolated. While many studies have tried to summarize NPs with antibacterial activities, a comprehensive review with rigorous selection criteria has never been performed. In this work, the literature from 2012 to 2019 was systematically reviewed to highlight plant-derived compounds with antibacterial activity by focusing on their growth inhibitory activity. A total of 459 compounds are included in this Review, of which 50.8% are phenolic derivatives, 26.6% are terpenoids, 5.7% are alkaloids, and 17% are classified as other metabolites. A selection of 183 compounds is further discussed regarding their antibacterial activity, biosynthesis, structure-activity relationship, mechanism of action, and potential as antibiotics. Emerging trends in the field of antibacterial drug discovery from plants are also discussed. This Review brings to the forefront key findings on the antibacterial potential of plant NPs for consideration in future antibiotic discovery and development efforts.
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Affiliation(s)
- Gina Porras
- Center for the Study of Human Health, Emory University, 1557 Dickey Dr., Atlanta, Georgia 30322
| | - François Chassagne
- Center for the Study of Human Health, Emory University, 1557 Dickey Dr., Atlanta, Georgia 30322
| | - James T. Lyles
- Center for the Study of Human Health, Emory University, 1557 Dickey Dr., Atlanta, Georgia 30322
| | - Lewis Marquez
- Molecular and Systems Pharmacology Program, Laney Graduate School, Emory University, 615 Michael St., Whitehead 115, Atlanta, Georgia 30322
| | - Micah Dettweiler
- Department of Dermatology, Emory University, 615 Michael St., Whitehead 105L, Atlanta, Georgia 30322
| | - Akram M. Salam
- Molecular and Systems Pharmacology Program, Laney Graduate School, Emory University, 615 Michael St., Whitehead 115, Atlanta, Georgia 30322
| | - Tharanga Samarakoon
- Emory University Herbarium, Emory University, 1462 Clifton Rd NE, Room 102, Atlanta, Georgia 30322
| | - Sarah Shabih
- Center for the Study of Human Health, Emory University, 1557 Dickey Dr., Atlanta, Georgia 30322
| | - Darya Raschid Farrokhi
- Center for the Study of Human Health, Emory University, 1557 Dickey Dr., Atlanta, Georgia 30322
| | - Cassandra L. Quave
- Center for the Study of Human Health, Emory University, 1557 Dickey Dr., Atlanta, Georgia 30322
- Emory University Herbarium, Emory University, 1462 Clifton Rd NE, Room 102, Atlanta, Georgia 30322
- Department of Dermatology, Emory University, 615 Michael St., Whitehead 105L, Atlanta, Georgia 30322
- Molecular and Systems Pharmacology Program, Laney Graduate School, Emory University, 615 Michael St., Whitehead 115, Atlanta, Georgia 30322
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22
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Rahim MA, Seo H, Kim S, Jeong YK, Tajdozian H, Kim M, Lee S, Song HY. A Clinical Trial to Evaluate the Efficacy of α-Viniferin in Staphylococcus aureus - Specific Decolonization without Depleting the Normal Microbiota of Nares. Pol J Microbiol 2021; 70:117-130. [PMID: 33815533 PMCID: PMC8008767 DOI: 10.33073/pjm-2021-011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/03/2021] [Accepted: 02/08/2021] [Indexed: 12/30/2022] Open
Abstract
Staphylococcus aureus is currently a significant multidrug-resistant bacterium, causing severe healthcare-associated and community-acquired infections worldwide. The current antibiotic regimen against this pathogen is becoming ineffective due to resistance, in addition, they disrupt the normal microbiota. It highlights the urgent need for a pathogen-specific drug with high antibacterial efficacy against S. aureus. α-Viniferin, a bioactive phytochemical compound, has been reported to have excellent anti-Staphylococcus efficacy as a topical agent. However, so far, there were no clinical trials that have been conducted to elucidate its efficacy. The present study aimed to investigate the antibacterial efficacy of α-viniferin against S. aureus in a ten-day clinical trial. Based on the results, α-viniferin showed 50% minimum inhibitory concentrations (MIC50 values) of 7.8 μg/ml in culture broth medium. α-Viniferin was administered in the nares three times a day for ten days using a sterile cotton swab stick. Nasal swab specimens were collected before (0 days) and after finishing the trial (10th day), and then analyzed. In the culture and RT-PCR-based analysis, S. ureus was reduced significantly: 0.01. In addition, 16S ribosomal RNA-based amplicon sequencing analysis showed that S. aureus reduced from 51.03% to 23.99% at the genus level. RNA-seq analysis was also done to gain insights into molecular mechanisms of α-viniferin against S. aureus, which revealed that some gene groups were reduced in 5-fold FC cutoff at two times MIC conditions. The study results demonstrate α-viniferin as a potential S. aureus-specific drug candidate.
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Affiliation(s)
- Md Abdur Rahim
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Cheonan, Republic of Korea.,Probiotics Microbiome Convergence Center, Asan, Republic of Korea
| | - Hoonhee Seo
- Probiotics Microbiome Convergence Center, Asan, Republic of Korea
| | - Sukyung Kim
- Probiotics Microbiome Convergence Center, Asan, Republic of Korea
| | | | - Hanieh Tajdozian
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Cheonan, Republic of Korea.,Probiotics Microbiome Convergence Center, Asan, Republic of Korea
| | - Mijung Kim
- Probiotics Microbiome Convergence Center, Asan, Republic of Korea
| | - Saebim Lee
- Probiotics Microbiome Convergence Center, Asan, Republic of Korea
| | - Ho-Yeon Song
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Cheonan, Republic of Korea.,Probiotics Microbiome Convergence Center, Asan, Republic of Korea
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23
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Shen F, Ge C, Yuan P. Metabolomics Study Reveals Inhibition and Metabolic Dysregulation in Staphylococcus aureus Planktonic Cells and Biofilms Induced by Carnosol. Front Microbiol 2020; 11:538572. [PMID: 33072009 PMCID: PMC7530940 DOI: 10.3389/fmicb.2020.538572] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 08/27/2020] [Indexed: 02/05/2023] Open
Abstract
Staphylococcus aureus (S. aureus) is a global health threat accompanied by increasing in drug resistance. To combat this challenge, there is an urgent need to find alternative antimicrobial agents against S. aureus. This study investigated the antimicrobial efficacy of carnosol against S. aureus using an in vitro model. The effects of carnosol were determined based on the antimicrobial effects or formation and disruption of biofilms. Finally, metabolomics of S. aureus grown as planktonic cells and biofilms with carnosol treatment were analyzed using gas chromatography-mass spectrometry. The minimum inhibitory concentrations (MICs) of carnosol were 32 to 256 μg/mL against the sixteen tested S. aureus strains. Among the biofilms, we observed a reduction in bacterial motility of the S. aureus, biofilm development and preformed biofilm after carnosol treatment. Moreover, the significantly altered metabolic pathways upon carnosol treatment in S. aureus planktonic cells and biofilms were highly associated with the perturbation of glyoxylate and dicarboxylate metabolism, glycine, serine and threonine metabolism, arginine and proline metabolism, alanine, aspartate and glutamate metabolism, arginine biosynthesis, and aminoacyl-tRNA biosynthesis. In addition, glutathione metabolism, D-glutamine and D-glutamate metabolism were significantly changed in the biofilms. This study establishes the antibacterial and antibiofilm properties of carnosol, and will provide an alternative strategy for overcoming the drug resistance of S. aureus.
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Affiliation(s)
- Fengge Shen
- Xinxiang Key Laboratory of Molecular Neurology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Chunpo Ge
- Xinxiang Key Laboratory of Molecular Neurology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Peng Yuan
- School of Public Health, Xinxiang Medical University, Xinxiang, China
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24
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Synthesis and structure-activity relationships of novel abietane diterpenoids with activity against Staphylococcus aureus. Future Med Chem 2019; 11:3109-3124. [PMID: 31838897 DOI: 10.4155/fmc-2019-0192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Aim: To find alternative compounds against methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-susceptible S. aureus (MSSA), novel derivatives from dehydroabietic acid were synthesized. Methods & results: Compound 12 was the most effective against 15 MRSA and 11 MSSA with minimum inhibitory concentration values ranging from 3.9 to 15.6 μg/ml. Although less active than 12, compound 11, followed by 25 and 13, also exhibited anti-staphylococcal activity. Additional studies showed that compound 12 is devoid of toxic effect on non-target cells. A structure-activity relationship study revealed that an oxime at C-13 together with a hydroxyl at C-12 could play a key role in the activity. Conclusion: These structures, in particular compound 12, could arise as templates for the development of agents against MRSA and MSSA.
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25
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Bioguided Purification of Active Compounds from Leaves of Anadenanthera colubrina var. cebil (Griseb.) Altschul. Biomolecules 2019; 9:biom9100590. [PMID: 31597408 PMCID: PMC6843843 DOI: 10.3390/biom9100590] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/25/2019] [Accepted: 09/25/2019] [Indexed: 12/15/2022] Open
Abstract
Anadenanthera colubrina var cebil (Griseb.) Altschul is a medicinal plant found throughout the Brazilian semi-arid area. This work performed a bioguided purification of active substances present in ethyl acetate extract from A. colubrina leaves. The anti-Staphylococcus aureus and antioxidant actions were used as markers of bioactivity. The extract was subjected to flash chromatography resulting in five fractions (F1, F2, F3, F4, and F5). The fractions F2 and F4 presented the highest antimicrobial action, with a dose able to inhibit 50% of bacteria growth (IN50) of 19.53 μg/mL for S. aureus UFPEDA 02; whereas F4 showed higher inhibitory action towards DPPH radical (2,2-diphenyl-1-picryl-hydrazyl-hydrate) [dose able to inhibit 50% of the radical (IC50) = 133 ± 9 μg/mL]. F2 and F4 were then subjected to preparative high-performance liquid chromatography (HPLC) and nuclear magnetic resonance (NMR), resulting in the identification of p-hydroxybenzoic acid and hyperoside as the major compounds in F2 and F4, respectively. Hyperoside and p-hydroxybenzoic acid presented IN50 values of 250 μg/mL and 500 μg/mL against S. aureus UFPEDA 02, respectively. However, the hyperoside had an IN50 of 62.5 μg/mL against S. aureus UFPEDA 705, a clinical isolate with multidrug resistant phenotype. Among the purified compounds, the proanthocyanidins obtained from F2 exhibited the higher antioxidant potentials. Taken together, these results highlight the potential of A. colubrina leaves as an alternative source of biomolecules of interest for the pharmaceutical, food, and cosmetic industries.
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26
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Oldoni TLC, Merlin N, Karling M, Carpes ST, Alencar SMD, Morales RGF, Silva EAD, Pilau EJ. Bioguided extraction of phenolic compounds and UHPLC-ESI-Q-TOF-MS/MS characterization of extracts of Moringa oleifera leaves collected in Brazil. Food Res Int 2019; 125:108647. [PMID: 31554035 DOI: 10.1016/j.foodres.2019.108647] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 07/30/2019] [Accepted: 08/25/2019] [Indexed: 11/30/2022]
Abstract
Moringa oleifera leaves are used in Brazilian folk medicine for their hypoglycemic and nutritional properties. In this context, the chemical and biological characteristics were determined. Conventional successive solid-liquid extraction with simultaneous bioguided purification using solvents with different polarities was performed with M. oleifera leaves, yielding six fractions and extracts. The fractions showed better results for antioxidant activity than the extracts. All of them were evaluated by scavenging of synthetic free radicals and reactive oxygen species, and Fr-Ace and Fr-EtOAc showed >100 mg GAE g-1 of phenolic content, while for FRAP and ORAC assays the values were higher than 1600 μmol Fe2+ g-1 and 3500 mmol TEAC g-1 respectively. The UPLC-ESI-QTOF-MS analysis of hydroalcoholic extract (HE) allowed identifying 24 compounds, with flavonoid derivatives being the most abundant group. Furthermore, the alkaloid trigonelline and sesquiterpenoid abscisic acid were identified for the first time in M. oleifera leaves. Finally, gallic acid, caffeic acid, rutin and quercetin were found in concentrations of 16.5, 2129, 477.4 and 127.5 μg g-1 respectively in HE, all of which were higher in fractions and extracts. These results suggest that bioguided extraction is an important technique, due to its ability to concentrate active compounds in a logical and rational way. In addition, M. oleifera leaves grown in Brazil are an important source of phenolic compounds with antioxidant activity that can be used in food, nutraceutical and pharmaceutical products.
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Affiliation(s)
| | - Nathalie Merlin
- Department of Chemistry, Federal Technological University of Paraná (UTFPR), Pato Branco, PR 85503-390, Brazil
| | - Mariéli Karling
- Department of Chemistry, Federal Technological University of Paraná (UTFPR), Pato Branco, PR 85503-390, Brazil
| | - Solange Teresinha Carpes
- Department of Chemistry, Federal Technological University of Paraná (UTFPR), Pato Branco, PR 85503-390, Brazil
| | - Severino Matias de Alencar
- Department of Agri-Food Industry, Food and Nutrition, "Luiz de Queiroz" College of Agriculture, University of Sao Paulo (USP), 13418-900 Piracicaba, SP, Brazil
| | | | - Evandro Aparecido da Silva
- Department of Chemistry, State University of Maringa (UEM), Av. Colombo, 5790 - Jardim Universitário, CP 591, 87020-900 Maringá, Paraná, Brazil
| | - Eduardo Jorge Pilau
- Department of Chemistry, State University of Maringa (UEM), Av. Colombo, 5790 - Jardim Universitário, CP 591, 87020-900 Maringá, Paraná, Brazil
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