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Milijasevic M, Veskovic-Moracanin S, Babic Milijasevic J, Petrovic J, Nastasijevic I. Antimicrobial Resistance in Aquaculture: Risk Mitigation within the One Health Context. Foods 2024; 13:2448. [PMID: 39123639 PMCID: PMC11311770 DOI: 10.3390/foods13152448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/29/2024] [Accepted: 08/01/2024] [Indexed: 08/12/2024] Open
Abstract
The application of antimicrobials in aquaculture primarily aims to prevent and treat bacterial infections in fish, but their inappropriate use may result in the emergence of zoonotic antibiotic-resistant bacteria and the subsequent transmission of resistant strains to humans via food consumption. The aquatic environment serves as a potential reservoir for resistant bacteria, providing an ideal breeding ground for development of antimicrobial resistance (AMR). The mutual inter-connection of intensive fish-farming systems with terrestrial environments, the food processing industry and human population creates pathways for the transmission of resistant bacteria, exacerbating the problem further. The aim of this study was to provide an overview of the most effective and available risk mitigation strategies to tackle AMR in aquaculture, based on the One Health (OH) concept. The stringent antimicrobial use guidelines, promoting disease control methods like enhanced farm biosecurity measures and vaccinations, alternatives to antibiotics (ABs) (prebiotics, probiotics, immunostimulants, essential oils (EOs), peptides and phage therapy), feeding practices, genetics, monitoring water quality, and improving wastewater treatment, rather than applying excessive use of antimicrobials, can effectively prevent the development of AMR and release of resistant bacteria into the environment and food. The contribution of the environment to AMR development traditionally receives less attention, and, therefore, environmental aspects should be included more prominently in OH efforts to predict, detect and prevent the risks to health. This is of particular importance for low and middle-income countries with a lack of integration of the national AMR action plans (NAPs) with the aquaculture-producing environment. Integrated control of AMR in fisheries based on the OH approach can contribute to substantial decrease in resistance, and such is the case in Asia, where in aquaculture, the percentage of antimicrobial compounds with resistance exceeding 50% (P50) decreased from 52% to 22% within the period of the previous two decades.
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Affiliation(s)
- Milan Milijasevic
- Institute of Meat Hygiene and Technology, 11000 Belgrade, Serbia; (M.M.); (S.V.-M.); (J.B.M.)
| | | | | | - Jelena Petrovic
- Scientific Veterinary Institute ‘Novi Sad’, 21113 Novi Sad, Serbia;
| | - Ivan Nastasijevic
- Institute of Meat Hygiene and Technology, 11000 Belgrade, Serbia; (M.M.); (S.V.-M.); (J.B.M.)
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Abass S, Parveen R, Irfan M, Malik Z, Husain SA, Ahmad S. Mechanism of antibacterial phytoconstituents: an updated review. Arch Microbiol 2024; 206:325. [PMID: 38913205 DOI: 10.1007/s00203-024-04035-y] [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: 04/25/2024] [Accepted: 06/05/2024] [Indexed: 06/25/2024]
Abstract
The increase of multiple drug resistance bacteria significantly diminishes the effectiveness of antibiotic armory and subsequently exaggerates the level of therapeutic failure. Phytoconstituents are exceptional substitutes for resistance-modifying vehicles. The plants appear to be a deep well for the discovery of novel antibacterial compounds. This is owing to the numerous enticing characteristics of plants, they are easily accessible and inexpensive, extracts or chemicals derived from plants typically have significant levels of action against infections, and they rarely cause serious adverse effects. The enormous selection of phytochemicals offers very distinct chemical structures that may provide both novel mechanisms of antimicrobial activity and deliver us with different targets in the interior of the bacterial cell. They can directly affect bacteria or act together with the crucial events of pathogenicity, in this manner decreasing the aptitude of bacteria to create resistance. Abundant phytoconstituents demonstrate various mechanisms of action toward multi drug resistance bacteria. Overall, this comprehensive review will provide insights into the potential of phytoconstituents as alternative treatments for bacterial infections, particularly those caused by multi drug resistance strains. By examining the current state of research in this area, the review will shed light on potential future directions for the development of new antimicrobial therapies.
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Affiliation(s)
- Sageer Abass
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, 110025, India
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
- Centre of Excellence in Unani Medicine (Pharmacognosy and Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Rabea Parveen
- Centre of Excellence in Unani Medicine (Pharmacognosy and Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Mohammad Irfan
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, 110025, India
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Zoya Malik
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
- Centre of Excellence in Unani Medicine (Pharmacognosy and Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Syed Akhtar Husain
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Sayeed Ahmad
- Centre of Excellence in Unani Medicine (Pharmacognosy and Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India.
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Cruz-Martínez YR, Hernández-Delgado T, Valencia I, Nieto-Camacho A, Ramírez-Apan MT, Espinosa-García FJ, Delgado G. Evaluation of selected natural sesquiterpenes as sensitizing agents of β-lactam-resistant bacterial strains. J Appl Microbiol 2024; 135:lxad315. [PMID: 38140942 DOI: 10.1093/jambio/lxad315] [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: 08/24/2023] [Revised: 12/13/2023] [Accepted: 12/22/2023] [Indexed: 12/24/2023]
Abstract
AIMS To evaluate the capacity of fourteen sesquiterpenes to enhance the action of known antibiotics against two β-lactam resistant strains, and to determine a possible mechanism of antibiotic sensitization by assessing their ability to inhibit a β-lactamase enzyme. METHODS AND RESULTS The broth microdilution method was used to determine the minimum inhibitory concentration (MIC) of β-lactams cefuroxime (CEFM) and cefepime (CPM) against Staphylococcus aureus 23MR and Escherichia coli 82MR strains in the absence and presence of subinhibitory concentrations of fourteen natural sesquiterpenes. (1R,4R)-4H-1,2,3,4-tetrahydro-1-hydroxycadalen-15-oic acid (5), xerantolide (8), estafiatin (11), and ambrosin (12) exhibited the best sensitizing effects in both strains. These compounds were able to reduce the MIC of CEFM by 2-fold (from 15.0 to 7.5 µg/mL) and CPM by 15-fold (from 0.9 to 0.06 µg/mL) in S. aureus 23MR. For E. coli 82MR, the MIC of CEFM was reduced up to 8-fold (from 120.0 to 15.0 µg/mL). In this strain, the activity of 8 and 11 surpassed that of clavulanic acid (positive reference), which reduced the MIC of CEFM from 120.0 to 60.0 µg/mL. To elucidate a possible mechanism of antibiotic sensitization, molecular docking studies were conducted with β-lactamases. These studies revealed an affinity with the enzymes (energies > -4.93 kcal/mol) by the formation of hydrogen bonds with certain conserved amino acid residues within the active sites. However, the in vitro results indicated only marginal inhibition, with percentages <50%. CONCLUSIONS The bioevaluations indicate that nine of fourteen sesquiterpenes enhance the action of CEFM and CPM against the β-lactam resistant strains, and these compounds displayed moderate activity as inhibitors of β-lactamase.
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Affiliation(s)
- Yesica R Cruz-Martínez
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria,, Ciudad de México, Coyoacán 04510, México
| | - Tzasna Hernández-Delgado
- Unidad de Biotecnología y Prototipos, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla 54090, Estado de México, México
| | - Israel Valencia
- Unidad de Biotecnología y Prototipos, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla 54090, Estado de México, México
| | - Antonio Nieto-Camacho
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria,, Ciudad de México, Coyoacán 04510, México
| | - María Teresa Ramírez-Apan
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria,, Ciudad de México, Coyoacán 04510, México
| | - Francisco Javier Espinosa-García
- Laboratorio de Ecología Química y Agroecología, Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México., Ex Hacienda de San José de la Huerta, Morelia 58190, Michoacán, México
| | - Guillermo Delgado
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria,, Ciudad de México, Coyoacán 04510, México
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Zhang ZM, Zhang J, Cai Q. Enantioselective and collective total synthesis of pentacyclic 19- nor-clerodanes. Chem Sci 2023; 14:12598-12605. [PMID: 38020367 PMCID: PMC10646913 DOI: 10.1039/d3sc04335e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 10/22/2023] [Indexed: 12/01/2023] Open
Abstract
We report herein the collective asymmetric total synthesis of seven pentacyclic 19-nor-clerodane diterpenoids, namely (+)-teucvin (+)-cracroson A, (+)-cracroson E, (+)-montanin A, (+)-teucvisin C, (+)-teucrin A, and (+)-2-hydroxyteuscorolide. An ytterbium-catalyzed asymmetric inverse-electron-demand Diels-Alder reaction of 4-methyl-2-pyrone with a chiral C5-substituted cyclohexa-1,3-dienol silyl ether is the key feature of the synthesis, which provides the common cis-decalin intermediate with five continuous stereocenters in excellent yield and stereoselectivity. From this diversifiable intermediate, the total synthesis of (+)-teucvin and (+)-2-hydroxyteuscorolide was realized in thirteen and eighteen steps, respectively. From (+)-teucvin, five other pentacyclic 19-nor-clerodanes were divergently and concisely generated through late-stage oxidation state adjustments.
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Affiliation(s)
- Zhi-Mao Zhang
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis, Fudan University 220 Handan Rd. Shanghai 200433 China
| | - Junliang Zhang
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis, Fudan University 220 Handan Rd. Shanghai 200433 China
| | - Quan Cai
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis, Fudan University 220 Handan Rd. Shanghai 200433 China
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Otify AM, ElBanna SA, Eltanany BM, Pont L, Benavente F, Ibrahim RM. A comprehensive analytical framework integrating liquid chromatography-tandem mass spectrometry metabolomics with chemometrics for metabolite profiling of lettuce varieties and discovery of antibacterial agents. Food Res Int 2023; 172:113178. [PMID: 37689928 DOI: 10.1016/j.foodres.2023.113178] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/17/2023] [Accepted: 06/19/2023] [Indexed: 09/11/2023]
Abstract
This study comprehensively characterized the metabolite profiles of six lettuce varieties and established the correlation between the elucidated profiles and their antivirulence effects. A total of 195 metabolites were annotated using LC-QTOF-MS/MS metabolomics assisted by molecular networking and integrated with chemometrics. Red varieties (red longifolia and lolla rosa) demonstrated higher chlorogenic and chicoric acids suggesting their antioxidant properties. In parallel, amino acids and disaccharides were enriched in romaine longifolia rationalizing its palatable taste and nutritional potential, while crispa, capitata, and lolla bionda presented a high β-carboline alkaloid content. The antibacterial and antihemolytic potential of all varieties against methicillin-sensitive and methicillin-resistant Staphylococcus aureus was assessed and validated by prominent downregulation of α-hemolysin transcriptional levels in both strains. Moreover, correlation analysis revealed sesquiterpenes, β-carboline alkaloids, amino acids, and oxy-fatty acids as the main bioactives. Results emphasize lettuce significance as a functional food and nutraceutical source, and highlight varieties naturally rich in antibacterial agents to adapt breeding programs.
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Affiliation(s)
- Asmaa M Otify
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt.
| | - Shahira A ElBanna
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Basma M Eltanany
- Department of Analytical Chemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Laura Pont
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA·UB), University of Barcelona, Barcelona 08028, Spain; Serra Húnter Program, Generalitat de Catalunya, Barcelona 08007, Spain
| | - Fernando Benavente
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA·UB), University of Barcelona, Barcelona 08028, Spain.
| | - Rana M Ibrahim
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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Zarroug SHO, Bajaman JS, Hamza FN, Saleem RA, Abdalla HK. Caenorhabditis elegans as an In Vivo Model for the Discovery and Development of Natural Plant-Based Antimicrobial Compounds. Pharmaceuticals (Basel) 2023; 16:1070. [PMID: 37630985 PMCID: PMC10458014 DOI: 10.3390/ph16081070] [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: 06/19/2023] [Revised: 07/24/2023] [Accepted: 07/25/2023] [Indexed: 08/27/2023] Open
Abstract
Antimicrobial resistance (AMR) due to the prevalence of multidrug-resistant (MDR) pathogens is rapidly increasing worldwide, and the identification of new antimicrobial agents with innovative mechanisms of action is urgently required. Medicinal plants that have been utilised for centuries with minor side effects may hold great promise as sources of effective antimicrobial products. The free-living nematode Caenorhabditis elegans (C. elegans) is an excellent live infection model for the discovery and development of new antimicrobial compounds. However, while C. elegans has widely been utilised to explore the effectiveness and toxicity of synthetic antibiotics, it has not been used to a comparable extent for the analysis of natural products. By screening the PubMed database, we identified articles reporting the use of the C. elegans model for the identification of natural products endowed with antibacterial and antifungal potential, and we critically analysed their results. The studies discussed here provide important information regarding "in vivo" antimicrobial effectiveness and toxicity of natural products, as evaluated prior to testing in conventional vertebrate models, thereby supporting the relevance of C. elegans as a highly proficient model for their identification and functional assessment. However, their critical evaluation also underlines that the characterisation of active phytochemicals and of their chemical structure, and the unravelling of their mechanisms of action represent decisive challenges for future research in this area.
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Affiliation(s)
- Samah H. O. Zarroug
- Department of Pharmacology, College of Medicine, Alfaisal University, Takassusy Road, Riyadh 11533, Saudi Arabia
| | - Juhaina S. Bajaman
- Department of Pharmacology, College of Medicine, Alfaisal University, Takassusy Road, Riyadh 11533, Saudi Arabia
| | - Fatheia N. Hamza
- Department of Biochemistry, College of Medicine, Alfaisal University, Takassusy Road, Riyadh 11533, Saudi Arabia; (F.N.H.); (R.A.S.)
| | - Rimah A. Saleem
- Department of Biochemistry, College of Medicine, Alfaisal University, Takassusy Road, Riyadh 11533, Saudi Arabia; (F.N.H.); (R.A.S.)
| | - Hana K. Abdalla
- Department of Microbiology, College of Medicine, Alfaisal University, Takassusy Road, Riyadh 11533, Saudi Arabia;
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da Silva LYS, Paulo CLR, Moura TF, Alves DS, Pessoa RT, Araújo IM, de Morais Oliveira-Tintino CD, Tintino SR, Nonato CDFA, da Costa JGM, Ribeiro-Filho J, Coutinho HDM, Kowalska G, Mitura P, Bar M, Kowalski R, Menezes IRAD. Antibacterial Activity of the Essential Oil of Piper tuberculatum Jacq. Fruits against Multidrug-Resistant Strains: Inhibition of Efflux Pumps and β-Lactamase. PLANTS (BASEL, SWITZERLAND) 2023; 12:2377. [PMID: 37376002 DOI: 10.3390/plants12122377] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 06/10/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023]
Abstract
Antimicrobial resistance has become a growing public health concern in recent decades, demanding a search for new effective treatments. Therefore, this study aimed to elucidate the phytochemical composition and evaluate the antibacterial activity of the essential oil obtained from the fruits of Piper tuberculatum Jacq. (EOPT) against strains carrying different mechanisms of antibiotic resistance. Phytochemical analysis was performed using gas chromatography-mass spectrometry (GC/MS). The antibacterial activity of EOPT and its ability to inhibit antibiotic resistance was evaluated through the broth microdilution method. The GC-MS analysis identified 99.59% of the constituents, with β-pinene (31.51%), α-pinene (28.38%), and β-cis-ocimene (20.22%) being identified as major constituents. The minimum inhibitory concentration (MIC) of EOPT was determined to assess its antibacterial activity against multidrug-resistant strains of Staphylococcus aureus (IS-58, 1199B, K2068, and K4100). The compound showed a MIC of ≥ 1024 μg/mL, suggesting a lack of intrinsic antibacterial activity. However, when the EOPT was associated with antibiotics and EtBr, a significant decrease in antibiotic resistance was observed, indicating the modulation of efflux pump activity. This evidence was corroborated with the observation of increased fluorescent light emission by the bacterial strains, indicating the involvement of the NorA and MepA efflux pumps. Additionally, the significant potentiation of ampicillin activity against the S. aureus strain K4414 suggests the β-lactamase inhibitory activity of EOPT. These results suggest that the essential oil from P. tuberculatum fruits has antibiotic-enhancing properties, with a mechanism involving the inhibition of efflux pumps and β-lactamase in MDR S. aureus strains. These findings provide new perspectives on the potential use of EOPT against antibiotic resistance and highlight the importance of Piper species as sources of bioactive compounds with promising therapeutic activities against MDR bacteria. Nevertheless, further preclinical (in vivo) studies remain necessary to confirm these in vitro-observed results.
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Affiliation(s)
- Lucas Yure Santos da Silva
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemistry, Regional University of Cariri-URCA, Crato 63105-000, CE, Brazil
| | - Cicera Laura Roque Paulo
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri-URCA, Crato 63105-000, CE, Brazil
| | - Talysson Felismino Moura
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri-URCA, Crato 63105-000, CE, Brazil
| | - Daniel Sampaio Alves
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri-URCA, Crato 63105-000, CE, Brazil
| | - Renata Torres Pessoa
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemistry, Regional University of Cariri-URCA, Crato 63105-000, CE, Brazil
| | - Isaac Moura Araújo
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri-URCA, Crato 63105-000, CE, Brazil
| | | | - Saulo Relison Tintino
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri-URCA, Crato 63105-000, CE, Brazil
| | - Carla de Fatima Alves Nonato
- Laboratory Natural Products Research, Department of Biological Chemistry, Regional University of Cariri-URCA, Crato 63105-000, CE, Brazil
| | - José Galberto Martins da Costa
- Laboratory Natural Products Research, Department of Biological Chemistry, Regional University of Cariri-URCA, Crato 63105-000, CE, Brazil
| | - Jaime Ribeiro-Filho
- Oswaldo Cruz Foundation (FIOCRUZ), Fiocruz Ceará, R. São José, S/N-Precabura, Eusébio 21040-900, CE, Brazil
| | - Henrique Douglas Melo Coutinho
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri-URCA, Crato 63105-000, CE, Brazil
| | - Grażyna Kowalska
- Department of Tourism and Recreation, University of Life Sciences in Lublin, 15 Akademicka Str., 20-950 Lublin, Poland
| | - Przemysław Mitura
- Department of Urology and Oncological Urology, Medical University of Lublin, 8 Jaczewskiego Str., 20-954 Lublin, Poland
| | - Marek Bar
- Department of Urology and Oncological Urology, Medical University of Lublin, 8 Jaczewskiego Str., 20-954 Lublin, Poland
| | - Radosław Kowalski
- Department of Analysis and Food Quality Assessment, University of Life Sciences in Lublin, 8 Skromna Str., 20-704 Lublin, Poland
| | - Irwin Rose Alencar de Menezes
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemistry, Regional University of Cariri-URCA, Crato 63105-000, CE, Brazil
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Stojković D, Petrović J, Carević T, Soković M, Liaras K. Synthetic and Semisynthetic Compounds as Antibacterials Targeting Virulence Traits in Resistant Strains: A Narrative Updated Review. Antibiotics (Basel) 2023; 12:963. [PMID: 37370282 PMCID: PMC10295040 DOI: 10.3390/antibiotics12060963] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 05/24/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
This narrative review paper provides an up-to-date overview of the potential of novel synthetic and semisynthetic compounds as antibacterials that target virulence traits in resistant strains. The review focused on research conducted in the last five years and investigated a range of compounds including azoles, indoles, thiophenes, glycopeptides, pleuromutilin derivatives, lactone derivatives, and chalcones. The emergence and spread of antibiotic-resistant bacterial strains is a growing public health concern, and new approaches are urgently needed to combat this threat. One promising approach is to target virulence factors, which are essential for bacterial survival and pathogenesis, but not for bacterial growth. By targeting virulence factors, it may be possible to reduce the severity of bacterial infections without promoting the development of resistance. We discuss the mechanisms of action of the various compounds investigated and their potential as antibacterials. The review highlights the potential of targeting virulence factors as a promising strategy to combat antibiotic resistance and suggests that further research is needed to identify new compounds and optimize their efficacy. The findings of this review suggest that novel synthetic and semisynthetic compounds that target virulence factors have great potential as antibacterials in the fight against antibiotic resistance.
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Affiliation(s)
- Dejan Stojković
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia; (D.S.); (J.P.); (T.C.); (M.S.)
| | - Jovana Petrović
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia; (D.S.); (J.P.); (T.C.); (M.S.)
| | - Tamara Carević
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia; (D.S.); (J.P.); (T.C.); (M.S.)
| | - Marina Soković
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia; (D.S.); (J.P.); (T.C.); (M.S.)
| | - Konstantinos Liaras
- Department of Life and Health Sciences, School of Sciences and Engineering, University of Nicosia, 2417 Nicosia, Cyprus
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Soto ER, Rus F, Mirza Z, Ostroff GR. Yeast Particles for Encapsulation of Terpenes and Essential Oils. Molecules 2023; 28:molecules28052273. [PMID: 36903519 PMCID: PMC10005402 DOI: 10.3390/molecules28052273] [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: 02/04/2023] [Revised: 02/22/2023] [Accepted: 02/25/2023] [Indexed: 03/05/2023] Open
Abstract
Terpenes and essential oils are materials of great commercial use due to their broad spectra of antibacterial, antifungal, membrane permeation enhancement and antioxidant biological properties, as well as for their use as flavors and fragrances. Yeast particles (YPs) are 3-5 µm hollow and porous microspheres, a byproduct of some food-grade yeast (Saccharomyces cerevisiae) extract manufacturing processes, that have been used for the encapsulation of terpenes and essential oils with high payload loading capacity (up to 500% weight) and efficiency, providing stability and sustained-release properties. This review focuses on encapsulation approaches for the preparation of YP-terpene and essential oil materials that have a wide range of potential agricultural, food and pharmaceutical applications.
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Sun J, Yan J, Dong H, Gao K, Yu K, He C, Mao X. Astaxanthin with different configurations: sources, activity, post-modification and application in foods. Curr Opin Food Sci 2022. [DOI: 10.1016/j.cofs.2022.100955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wang Y, Kong J, Zhang X, Liu Y, Huang Z, Yuan L, Zhang Y, Cao J, Chen L, Liu Y, Zhou T. Plumbagin resurrect colistin susceptible against colistin-resistant Pseudomonas aeruginosa in vitro and in vivo. Front Microbiol 2022; 13:1020652. [PMID: 36274701 PMCID: PMC9579824 DOI: 10.3389/fmicb.2022.1020652] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 09/08/2022] [Indexed: 11/22/2022] Open
Abstract
The global emergence and spread of multi-drug resistant (MDR) strains is becoming increasingly worrisome due to the overuse of broad-spectrum antibiotics. Colistin, the last resort for treating MDR strains infections, has once again returned to the clinician’s choice. However, with the widespread use of colistin, colistin-resistant gram-negative bacteria (GNB) have subsequently emerged, including colistin-resistant Pseudomonas aeruginosa (COL-R PA). Therefore, available solutions are urgently needed to respond to this situation. Here, we inspiringly found that the combination of plumbagin and colistin had an efficiently inhibitory effect for colistin-resistant P. aeruginosa in vitro through checkerboard assay and time-kill assay. The combinatorial inhibition of biofilm formation was clearly demonstrated by crystal violet staining and scanning electron microscopy (SEM), and this combination can not only inhibited biofilm formation but also eradicated the mature biofilm. Erythrocytes hemolysis test showed that plumbagin has negligible hemolysis ability. In addition, the increased survival rate of Galleria mellonella (G. mellonella) larva confirmed this combination as same as effective in vivo. As for the mechanism of this combination, propidium iodide (PI) staining showed colistin combined with plumbagin could significantly change the membrane permeability, thus exerting synergistic antibacterial activity. In conclusion, the combination of plumbagin and colistin shows a prominently synergistic antibacterial effect in vitro and in vivo, providing a promising option for the therapy of COL-R PA infection.
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Affiliation(s)
- Yue Wang
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jingchun Kong
- Department of Medical Lab Science, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaodong Zhang
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yan Liu
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zeyu Huang
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lu Yuan
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, China
| | - Ying Zhang
- Department of Medical Lab Science, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jianming Cao
- Department of Medical Lab Science, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lijiang Chen
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yong Liu
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, China
- Yong Liu,
| | - Tieli Zhou
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- *Correspondence: Tieli Zhou,
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12
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Yu X, Xu Q, Chen W, Mai Z, Mo L, Su X, Ou J, Lan Y, Zheng H, Xue Y. Rhein inhibits Chlamydia trachomatis infection by regulating pathogen-host cell. Front Public Health 2022; 10:1002029. [PMID: 36238249 PMCID: PMC9552556 DOI: 10.3389/fpubh.2022.1002029] [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: 07/24/2022] [Accepted: 09/07/2022] [Indexed: 01/27/2023] Open
Abstract
The global incidence of genital Chlamydia trachomatis infection increased rapidly as the primary available treatment of C. trachomatis infection being the use of antibiotics. However, the development of antibiotics resistant stain and other treatment failures are often observed in patients. Consequently, novel therapeutics are urgently required. Rhein is a monomer derivative of anthraquinone compounds with an anti-infection activity. This study investigated the effects of rhein on treating C. trachomatis infection. Rhein showed significant inhibitory effects on the growth of C. trachomatis in multiple serovars of C. trachomatis, including D, E, F and L1, and in various host cells, including HeLa, McCoy and Vero. Rhein could not directly inactivate C. trachomatis but could inhibit the growth of C. trachomatis by regulating pathogen-host cell interactions. Combined with azithromycin, the inhibitory effect of rehin was synergistic both in vitro and in vivo. Together these findings suggest that rhein could be developed for the treatment of C. trachomatis infections.
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Affiliation(s)
- Xueying Yu
- Department of Clinical Laboratory, Dermatology Hospital, Southern Medical University, Guangzhou, China,Department of Clinical Laboratory, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Qingqing Xu
- Department of Clinical Laboratory, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Wentao Chen
- Department of Clinical Laboratory, Dermatology Hospital, Southern Medical University, Guangzhou, China,Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Zhida Mai
- Department of Clinical Laboratory, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Lijun Mo
- Department of Clinical Laboratory, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Xin Su
- Department of Clinical Laboratory, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Jiangli Ou
- Department of Clinical Laboratory, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Yinyuan Lan
- Department of Clinical Laboratory, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Heping Zheng
- Department of Clinical Laboratory, Dermatology Hospital, Southern Medical University, Guangzhou, China,Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China,*Correspondence: Heping Zheng
| | - Yaohua Xue
- Department of Clinical Laboratory, Dermatology Hospital, Southern Medical University, Guangzhou, China,Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China,Yaohua Xue
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13
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Powell LC, Cullen JK, Boyle GM, De Ridder T, Yap PY, Xue W, Pierce CJ, Pritchard MF, Menzies GE, Abdulkarim M, Adams JYM, Stokniene J, Francis LW, Gumbleton M, Johns J, Hill KE, Jones AV, Parsons PG, Reddell P, Thomas DW. Topical, immunomodulatory epoxy-tiglianes induce biofilm disruption and healing in acute and chronic skin wounds. Sci Transl Med 2022; 14:eabn3758. [DOI: 10.1126/scitranslmed.abn3758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The management of antibiotic-resistant, bacterial biofilm infections in chronic skin wounds is an increasing clinical challenge. Despite advances in diagnosis, many patients do not derive benefit from current anti-infective/antibiotic therapies. Here, we report a novel class of naturally occurring and semisynthetic epoxy-tiglianes, derived from the Queensland blushwood tree (
Fontainea picrosperma)
, and demonstrate their antimicrobial activity (modifying bacterial growth and inducing biofilm disruption), with structure/activity relationships established against important human pathogens. In vitro, the lead candidate EBC-1013 stimulated protein kinase C (PKC)–dependent neutrophil reactive oxygen species (ROS) induction and NETosis and increased expression of wound healing–associated cytokines, chemokines, and antimicrobial peptides in keratinocytes and fibroblasts. In vivo, topical EBC-1013 induced rapid resolution of infection with increased matrix remodeling in acute thermal injuries in calves. In chronically infected diabetic mouse wounds, treatment induced cytokine/chemokine production, inflammatory cell recruitment, and complete healing (in six of seven wounds) with ordered keratinocyte differentiation. These results highlight a nonantibiotic approach involving contrasting, orthogonal mechanisms of action combining targeted biofilm disruption and innate immune induction in the treatment of chronic wounds.
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Affiliation(s)
- Lydia C. Powell
- Advanced Therapies Group, Cardiff University School of Dentistry, Cardiff CF14 4XY, UK
- Centre for Nanohealth, Swansea University Medical School, Swansea University, Swansea SA2 8PP, UK
| | - Jason K. Cullen
- Drug Discovery Group, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Glen M. Boyle
- Drug Discovery Group, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Tom De Ridder
- QBiotics Group Limited Yungaburra, Queensland 4884, Australia
| | - Pei-Yi Yap
- Drug Discovery Group, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia
| | - Wenya Xue
- Advanced Therapies Group, Cardiff University School of Dentistry, Cardiff CF14 4XY, UK
| | - Carly J. Pierce
- Drug Discovery Group, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia
| | - Manon F. Pritchard
- Advanced Therapies Group, Cardiff University School of Dentistry, Cardiff CF14 4XY, UK
| | | | - Muthanna Abdulkarim
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff CF10 3NB, UK
| | - Jennifer Y. M. Adams
- Advanced Therapies Group, Cardiff University School of Dentistry, Cardiff CF14 4XY, UK
| | - Joana Stokniene
- Advanced Therapies Group, Cardiff University School of Dentistry, Cardiff CF14 4XY, UK
| | - Lewis W. Francis
- Centre for Nanohealth, Swansea University Medical School, Swansea University, Swansea SA2 8PP, UK
| | - Mark Gumbleton
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff CF10 3NB, UK
| | - Jenny Johns
- Drug Discovery Group, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia
| | - Katja E. Hill
- Advanced Therapies Group, Cardiff University School of Dentistry, Cardiff CF14 4XY, UK
| | - Adam V. Jones
- Oral Pathology, Cardiff and Vale University Health Board , Cardiff CF14 4XY, UK
| | - Peter G. Parsons
- Drug Discovery Group, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia
| | - Paul Reddell
- QBiotics Group Limited Yungaburra, Queensland 4884, Australia
| | - David W. Thomas
- Advanced Therapies Group, Cardiff University School of Dentistry, Cardiff CF14 4XY, UK
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14
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Vlčko T, Rathod NB, Kulawik P, Ozogul Y, Ozogul F. The impact of aromatic plant-derived bioactive compounds on seafood quality and safety. ADVANCES IN FOOD AND NUTRITION RESEARCH 2022; 102:275-339. [PMID: 36064295 DOI: 10.1016/bs.afnr.2022.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Plant-derived bioactive compounds have been extensively studied and used within food industry for the last few decades. Those compounds have been used to extend the shelf-life and improve physico-chemical and sensory properties on food products. They have also been used as nutraceuticals due to broad range of potential health-promoting properties. Unlike the synthetic additives, the natural plant-derived compounds are more acceptable and often regarded as safer by the consumers. This chapter summarizes the extraction methods and sources of those plant-derived bioactives as well as recent findings in relation to their health-promoting properties, including cardio-protective, anti-diabetic, anti-inflammatory, anti-carcinogenic, immuno-modulatory and neuro-protective properties. In addition, the impact of applying those plant-derived compounds on seafood products is also investigated by reviewing the recent studies on their use as anti-microbial, anti-oxidant, coloring and flavoring agents as well as freshness indicators. Moreover, the current limitations of the use of plant-derived bioactive compounds as well as future prospects are discussed. The discoveries show high potential of those compounds and the possibility to apply on many different seafood. The compounds can be applied as individual while more and more studies are showing synergetic effect when those compounds are used in combination providing new important research possibilities.
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Affiliation(s)
- Tomáš Vlčko
- Institute of Food Sciences, Faculty of Biotechnology and Food Sciences, Slovak Agriculture University in Nitra, Nitra, Slovakia
| | - Nikheel Bhojraj Rathod
- Department of Post Harvest Management of Meat, Poultry and Fish, Post Graduate Institute of Post-Harvest Management, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Roha, Maharashtra, India
| | - Piotr Kulawik
- Department of Animal Products Technology, Faculty of Food Technology, University of Agriculture, Kraków, Poland
| | - Yesim Ozogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, Adana, Turkey
| | - Fatih Ozogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, Adana, Turkey.
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15
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Soto ER, Rus F, Ostroff GR. Yeast Particles Hyper-Loaded with Terpenes for Biocide Applications. Molecules 2022; 27:molecules27113580. [PMID: 35684516 PMCID: PMC9182042 DOI: 10.3390/molecules27113580] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/15/2022] [Accepted: 03/27/2022] [Indexed: 11/16/2022] Open
Abstract
Yeast particles (YPs) are 3−5 µm hollow and porous microspheres, a byproduct of some food grade yeast (Saccharomyces cerevisiae) extract manufacturing processes. Terpenes can be efficiently encapsulated inside YPs by passive diffusion through the porous cell walls. As previously published, this YP terpene encapsulation approach has been successfully implemented (1) to develop and commercialize fungicide and nematicide products for agricultural applications, (2) to co-load high potency agrochemical actives dissolved in terpenes or suitable solvents, and (3) to identify YP terpenes with broad-acting anthelmintic activity for potential pharmaceutical applications. These first-generation YP terpene materials were developed with a <2:1 terpene: YP weight ratio. Here we report methods to increase the terpene loading capacity in YPs up to 5:1 terpene: YP weight ratio. Hyper-loaded YP terpenes extend the kinetics of payload release up to three-fold compared to the commercialized YP terpene formulations. Hyper-loaded YP-terpene compositions were further optimized to achieve high terpene storage encapsulation stability from −20 °C to 54 °C. The development of hyper-loaded YP terpenes has a wide range of potential agricultural and pharmaceutical applications with terpenes and other compatible active substances that could benefit from a delivery system with a high payload loading capacity combined with increased payload stability and sustained release properties.
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16
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Unni V, Abishad P, Prasastha Ram V, Niveditha P, Yasur J, John L, Prejit N, Juliet S, Latha C, Vergis J, Kurkure NV, Barbuddhe SB, Rawool DB. Green synthesis, and characterization of zinc oxide nanoparticles using Piper longum catkin extract and its in vitro antimicrobial activity against multi-drug-resistant non-typhoidal Salmonella spp. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2078356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Varsha Unni
- Department of Veterinary Public Health, College of Veterinary and Animal Sciences, Pookode, Kerala Veterinary and Animal Sciences University, Wayanad, India
| | - Padikkamannil Abishad
- Department of Veterinary Public Health, College of Veterinary and Animal Sciences, Pookode, Kerala Veterinary and Animal Sciences University, Wayanad, India
| | | | | | | | - Lijo John
- Department of Veterinary Biochemistry, College of Veterinary and Animal Sciences, Pookode, Kerala Veterinary and Animal Sciences University, Wayanad, India
| | - Nambiar Prejit
- Department of Veterinary Public Health, College of Veterinary and Animal Sciences, Pookode, Kerala Veterinary and Animal Sciences University, Wayanad, India
| | - Sanis Juliet
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary and Animal Sciences, Pookode, Kerala Veterinary and Animal Sciences University, Wayanad, India
| | - C. Latha
- Department of Veterinary Public Health, College of Veterinary and Animal Sciences, Mannuthy, Kerala Veterinary and Animal Sciences University, Wayanad, India
| | - Jess Vergis
- Department of Veterinary Public Health, College of Veterinary and Animal Sciences, Pookode, Kerala Veterinary and Animal Sciences University, Wayanad, India
| | - Nitin Vasantrao Kurkure
- Department of Veterinary Pathology, Nagpur Veterinary College, Maharashtra Animal and Fishery Sciences University, Nagpur, India
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17
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Heliawati L, Lestari S, Hasanah U, Ajiati D, Kurnia D. Phytochemical Profile of Antibacterial Agents from Red Betel Leaf (Piper crocatum Ruiz and Pav) against Bacteria in Dental Caries. Molecules 2022; 27:molecules27092861. [PMID: 35566225 PMCID: PMC9101570 DOI: 10.3390/molecules27092861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 04/22/2022] [Accepted: 04/27/2022] [Indexed: 12/23/2022] Open
Abstract
Based on data from The Global Burden of Disease Study in 2016, dental and oral health problems, especially dental caries, are a disease experienced by almost half of the world’s population (3.58 billion people). One of the main causes of dental caries is the pathogenesis of Streptococcus mutans. Prevention can be achieved by controlling S. mutans using an antibacterial agent. The most commonly used antibacterial for the treatment of dental caries is chlorhexidine. However, long-term use of chlorhexidine has been reported to cause resistance and some side effects. Therefore, the discovery of a natural antibacterial agent is an urgent need. A natural antibacterial agent that can be used are herbal medicines derived from medicinal plants. Piper crocatum Ruiz and Pav has the potential to be used as a natural antibacterial agent for treating dental and oral health problems. Several studies reported that the leaves of P. crocatum Ruiz and Pav contain secondary metabolites such as essential oils, flavonoids, alkaloids, terpenoids, tannins, and phenolic compounds that are active against S. mutans. This review summarizes some information about P. crocatum Ruiz and Pav, various isolation methods, bioactivity, S. mutans bacteria that cause dental caries, biofilm formation mechanism, antibacterial properties, and the antibacterial mechanism of secondary metabolites in P. crocatum Ruiz and Pav.
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Affiliation(s)
- Leny Heliawati
- Study Program of Chemistry, Faculty of Mathematics and Natural Science, Universitas Pakuan, Bogor 16143, Indonesia; (S.L.); (U.H.)
- Correspondence: ; Tel.: +62-8521-615-0330
| | - Seftiana Lestari
- Study Program of Chemistry, Faculty of Mathematics and Natural Science, Universitas Pakuan, Bogor 16143, Indonesia; (S.L.); (U.H.)
| | - Uswatun Hasanah
- Study Program of Chemistry, Faculty of Mathematics and Natural Science, Universitas Pakuan, Bogor 16143, Indonesia; (S.L.); (U.H.)
| | - Dwipa Ajiati
- Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Sumedang 45363, Indonesia; (D.A.); (D.K.)
| | - Dikdik Kurnia
- Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Sumedang 45363, Indonesia; (D.A.); (D.K.)
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18
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Mingoia M, Conte C, Di Rienzo A, Dimmito MP, Marinucci L, Magi G, Turkez H, Cufaro MC, Del Boccio P, Di Stefano A, Cacciatore I. Synthesis and Biological Evaluation of Novel Cinnamic Acid-Based Antimicrobials. Pharmaceuticals (Basel) 2022; 15:ph15020228. [PMID: 35215340 PMCID: PMC8878811 DOI: 10.3390/ph15020228] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/11/2022] [Accepted: 02/12/2022] [Indexed: 12/15/2022] Open
Abstract
The main antimicrobial resistance (AMR) nosocomial strains (ESKAPE pathogens such as Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter spp.) are the most widespread bacteria in cutaneous infections. In this work we report the synthesis, in silico skin permeability prediction, antimicrobial, antibiofilm, and wound healing properties of novel cinnamic acid-based antimicrobials (DM1–11) as novel antibacterial drugs for the treatment of ESKAPE-related skin infections. Antimicrobial and wound healing scratch assays were performed to evaluate the antibacterial properties of DM1–11. In silico skin permeability capabilities of DM1–11 were evaluated using Swiss-ADME online database. Cytotoxicity assays were performed on keratinocytes and fibroblasts. DM2, bearing a catechol group on the aromatic ring of the cinnamic portion of the molecule, possesses a significant antibacterial activity against S. aureus (MIC range 16–64 mg/L) and contrasts the biofilm-mediated S. epidermidis infection at low concentrations. Wound healing assays showed that wound closure in 48 h was observed in DM2-treated keratinocytes with a better healing pattern at all the used concentrations (0.1, 1.0, and 10 µM). A potential good skin permeation for DM2, that could guarantee its effectiveness at the target site, was also observed. Cytotoxicity studies revealed that DM2 may be a safe compound for topical use. Taking together all these data confirm that DM2 could represent a safe wound-healing topical agent for the treatment of skin wound infections caused by two of main Gram-positive bacteria belonging to ESKAPE microorganisms.
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Affiliation(s)
- Marina Mingoia
- Department of Biomedical Sciences and Public Health, Medical School, Polytechnic University of Marche, 60121 Ancona, Italy; (M.M.); (G.M.)
| | - Carmela Conte
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti, 48, 06123 Perugia, Italy;
| | - Annalisa Di Rienzo
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti Scalo, Italy; (A.D.R.); (M.P.D.); (M.C.C.); (P.D.B.); (A.D.S.)
| | - Marilisa Pia Dimmito
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti Scalo, Italy; (A.D.R.); (M.P.D.); (M.C.C.); (P.D.B.); (A.D.S.)
| | - Lorella Marinucci
- Department of Medicine and Surgery, University of Perugia, S. Andrea Delle Fratte, 06156 Perugia, Italy;
| | - Gloria Magi
- Department of Biomedical Sciences and Public Health, Medical School, Polytechnic University of Marche, 60121 Ancona, Italy; (M.M.); (G.M.)
| | - Hasan Turkez
- Department of Medical Biology, Faculty of Medicine, Ataturk University, 25240 Erzurum, Turkey;
| | - Maria Concetta Cufaro
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti Scalo, Italy; (A.D.R.); (M.P.D.); (M.C.C.); (P.D.B.); (A.D.S.)
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti Scalo, Italy
| | - Piero Del Boccio
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti Scalo, Italy; (A.D.R.); (M.P.D.); (M.C.C.); (P.D.B.); (A.D.S.)
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti Scalo, Italy
| | - Antonio Di Stefano
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti Scalo, Italy; (A.D.R.); (M.P.D.); (M.C.C.); (P.D.B.); (A.D.S.)
| | - Ivana Cacciatore
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti Scalo, Italy; (A.D.R.); (M.P.D.); (M.C.C.); (P.D.B.); (A.D.S.)
- Correspondence: ; Tel.: +39-871-355-44-75
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19
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Khusnutdinova EF, Sinou V, Babkov DA, Kazakova O, Brunel JM. Development of New Antimicrobial Oleanonic Acid Polyamine Conjugates. Antibiotics (Basel) 2022; 11:antibiotics11010094. [PMID: 35052971 PMCID: PMC8772916 DOI: 10.3390/antibiotics11010094] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 11/16/2022] Open
Abstract
A series of oleanolic acid derivatives holding oxo- or 3-N-polyamino-3-deoxy-substituents at C3 as well as carboxamide function at C17 with different long chain polyamines have been synthesized and evaluated for antimicrobial activities. Almost all series presented good to moderate activity against Gram-positive S. aureus, S. faecalis and B. cereus bacteria with minimum inhibitory concentration (MIC) values from 3.125 to 200 µg/mL. Moreover, compounds possess important antimicrobial activities against Gram-negative E. coli, P. aeruginosa, S. enterica, and EA289 bacteria with MICs ranging from 6.25 to 200 µg/mL. The testing of ability to restore antibiotic activity of doxycycline and erythromycin at a 2 µg/mL concentration in a synergistic assay showed that oleanonic acid conjugate with spermine spacered through propargylamide led to a moderate improvement in terms of antimicrobial activities of the different selected combinations against both P. aeruginosa and E. coli. The study of mechanism of action of the lead conjugate 2i presenting a N-methyl norspermidine moiety showed the effect of disruption of the outer bacterial membrane of P. aeruginosa PA01 cells. Computational ADMET profiling renders this compound as a suitable starting point for pharmacokinetic optimization. These results give confidence to the successful outcome of bioconjugation of polyamines and oleanane-type triterpenoids in the development of antimicrobial agents.
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Affiliation(s)
- Elmira F. Khusnutdinova
- Ufa Institute of Chemistry UFRC RAS, 71 pr. Oktyabrya, 450054 Ufa, Russia;
- Aix Marseille Univ, INSERM, SSA, MCT, 13385 Marseille, France;
- Correspondence: (E.F.K.); (J.M.B.)
| | - Véronique Sinou
- Aix Marseille Univ, INSERM, SSA, MCT, 13385 Marseille, France;
| | - Denis A. Babkov
- Scientific Center for Innovative Drugs, Volgograd State Medical University, Novorossiyskaya st. 39, 400087 Volgograd, Russia;
| | - Oxana Kazakova
- Ufa Institute of Chemistry UFRC RAS, 71 pr. Oktyabrya, 450054 Ufa, Russia;
| | - Jean Michel Brunel
- Aix Marseille Univ, INSERM, SSA, MCT, 13385 Marseille, France;
- Correspondence: (E.F.K.); (J.M.B.)
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20
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Iobbi V, Brun P, Bernabé G, Dougué Kentsop RA, Donadio G, Ruffoni B, Fossa P, Bisio A, De Tommasi N. Labdane Diterpenoids from Salvia tingitana Etl. Synergize with Clindamycin against Methicillin-Resistant Staphylococcus aureus. Molecules 2021; 26:6681. [PMID: 34771089 PMCID: PMC8587691 DOI: 10.3390/molecules26216681] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 01/21/2023] Open
Abstract
Quorum-sensing (QS) is a regulatory mechanism in bacterial communication, important for pathogenesis control. The search for small molecules active as quorum-sensing inhibitors (QSI) that can synergize with antibiotics is considered a good strategy to counteract the problem of antibiotic resistance. Here the antimicrobial labdane diterpenoids sclareol (1) and manool (2) extracted from Salvia tingitana were considered as potential QSI against methicillin-resistant Staphylococcus aureus. Only sclareol showed synergistic activity with clindamycin. The quantification of these compounds by LC-MS analysis in the organs and in the calli of S. tingitana showed that sclareol is most abundant in the flower spikes and is produced by calli, while manool is the major labdane of the roots, and is abundant also in the leaves. Other metabolites of the roots were abietane diterpenoids, common in Salvia species, and pentacyclic triterpenoids, bearing a γ-lactone moiety, previously undescribed in Salvia. Docking simulations suggested that 1 and 2 bind to key residues, involved in direct interactions with DNA. They may prevent accessory gene regulator A (AgrA) binding to DNA or AgrA activation upon phosphorylation, to suppress virulence factor expression. The antimicrobial activity of these two compounds probably achieves preventing upregulation of the accessory gene regulator (agr)-regulated genes.
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Affiliation(s)
- Valeria Iobbi
- Department of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy; (V.I.); (R.A.D.K.); (P.F.)
| | - Paola Brun
- Department of Molecular Medicine, University of Padova, Via Gabelli 63, 35121 Padova, Italy; (P.B.); (G.B.)
| | - Giulia Bernabé
- Department of Molecular Medicine, University of Padova, Via Gabelli 63, 35121 Padova, Italy; (P.B.); (G.B.)
| | - Roméo Arago Dougué Kentsop
- Department of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy; (V.I.); (R.A.D.K.); (P.F.)
- Consiglio per la Ricerca e la Sperimentazione in Agricoltura–CREA Centro di ricerca Orticoltura e Florovivaismo, 18038 San Remo, Italy;
| | - Giuliana Donadio
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Salerno, Italy; (G.D.); (N.D.T.)
| | - Barbara Ruffoni
- Consiglio per la Ricerca e la Sperimentazione in Agricoltura–CREA Centro di ricerca Orticoltura e Florovivaismo, 18038 San Remo, Italy;
| | - Paola Fossa
- Department of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy; (V.I.); (R.A.D.K.); (P.F.)
| | - Angela Bisio
- Department of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy; (V.I.); (R.A.D.K.); (P.F.)
| | - Nunziatina De Tommasi
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Salerno, Italy; (G.D.); (N.D.T.)
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21
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Identification of Effective Anticancer G-Quadruplex-Targeting Chemotypes through the Exploration of a High Diversity Library of Natural Compounds. Pharmaceutics 2021; 13:pharmaceutics13101611. [PMID: 34683905 PMCID: PMC8537501 DOI: 10.3390/pharmaceutics13101611] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/21/2021] [Accepted: 09/26/2021] [Indexed: 12/14/2022] Open
Abstract
In the quest for selective G-quadruplex (G4)-targeting chemotypes, natural compounds have been thus far poorly explored, though representing appealing candidates due to the high structural diversity of their scaffolds. In this regard, a unique high diversity in-house library composed of ca. one thousand individual natural products was investigated. The combination of molecular docking-based virtual screening and the G4-CPG experimental screening assay proved to be useful to quickly and effectively identify-out of many natural compounds-five hit binders of telomeric and oncogenic G4s, i.e., Bulbocapnine, Chelidonine, Ibogaine, Rotenone and Vomicine. Biophysical studies unambiguously demonstrated the selective interaction of these compounds with G4s compared to duplex DNA. The rationale behind the G4 selective recognition was suggested by molecular dynamics simulations. Indeed, the selected ligands proved to specifically interact with G4 structures due to peculiar interaction patterns, while they were unable to firmly bind to a DNA duplex. From biological assays, Chelidonine and Rotenone emerged as the most active compounds of the series against cancer cells, also showing good selectivity over normal cells. Notably, the anticancer activity correlated well with the ability of the two compounds to target telomeric G4s.
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22
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Zhang D, Cao Y, Wang K, Shi Z, Wang R, Meng Q, Bi Y. Design, Synthesis, and Antibacterial Evaluation of Novel Ocotillol Derivatives and Their Synergistic Effects with Conventional Antibiotics. Molecules 2021; 26:molecules26195969. [PMID: 34641512 PMCID: PMC8512374 DOI: 10.3390/molecules26195969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/25/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022] Open
Abstract
The improper use of antibiotics has led to the development of bacterial resistance, resulting in fewer antibiotics for many bacterial infections. Especially, the drug resistance of hospital-acquired methicillin-resistant Staphylococcus aureus (HA-MRSA) is distinctly serious. This research designed and synthesized two series of 3-substituted ocotillol derivatives in order to improve their anti-HA-MRSA potency and synergistic antibacterial activity. Among the synthesized compounds, 20–31 showed minimum inhibitory concentration (MIC) values of 1–64 µg/mL in vitro against HA-MRSA 18–19, 18–20, and S. aureus ATCC29213. Compound 21 showed the best antibacterial activity, with an MIC of 1 μg/mL and had synergistic inhibitory effects. The fractional inhibitory concentration index (FICI) value was 0.375, when combined with chloramphenicol (CHL) or kanamycin (KAN). The structure–activity relationships (SARs) of ocotillol-type derivatives were also summarized. Compound 21 has the potential to be developed as a novel antibacterial agent or potentiator against HA-MRSA.
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Affiliation(s)
| | | | | | | | | | - Qingguo Meng
- Correspondence: (Q.M.); (Y.B.); Tel.: +86-0535-6706022 (Q.M.); +86-0535-6706285 (Y.B.)
| | - Yi Bi
- Correspondence: (Q.M.); (Y.B.); Tel.: +86-0535-6706022 (Q.M.); +86-0535-6706285 (Y.B.)
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23
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Prichula J, Primon-Barros M, Luz RCZ, Castro ÍMS, Paim TGS, Tavares M, Ligabue-Braun R, d’Azevedo PA, Frazzon J, Frazzon APG, Seixas A, Gilmore MS. Genome Mining for Antimicrobial Compounds in Wild Marine Animals-Associated Enterococci. Mar Drugs 2021; 19:328. [PMID: 34204046 PMCID: PMC8229437 DOI: 10.3390/md19060328] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/28/2021] [Accepted: 06/03/2021] [Indexed: 12/20/2022] Open
Abstract
New ecosystems are being actively mined for new bioactive compounds. Because of the large amount of unexplored biodiversity, bacteria from marine environments are especially promising. Further, host-associated microbes are of special interest because of their low toxicity and compatibility with host health. Here, we identified and characterized biosynthetic gene clusters encoding antimicrobial compounds in host-associated enterococci recovered from fecal samples of wild marine animals remote from human-affected ecosystems. Putative biosynthetic gene clusters in the genomes of 22 Enterococcus strains of marine origin were predicted using antiSMASH5 and Bagel4 bioinformatic software. At least one gene cluster encoding a putative bioactive compound precursor was identified in each genome. Collectively, 73 putative antimicrobial compounds were identified, including 61 bacteriocins (83.56%), 10 terpenes (13.70%), and 2 (2.74%) related to putative nonribosomal peptides (NRPs). Two of the species studied, Enterococcus avium and Enterococcus mundtti, are rare causes of human disease and were found to lack any known pathogenic determinants but yet possessed bacteriocin biosynthetic genes, suggesting possible additional utility as probiotics. Wild marine animal-associated enterococci from human-remote ecosystems provide a potentially rich source for new antimicrobial compounds of therapeutic and industrial value and potential probiotic application.
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Affiliation(s)
- Janira Prichula
- Gram-Positive Cocci Laboratory, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre 90050-170, RS, Brazil; (J.P.); (M.P.-B.); (R.C.Z.L.); (Í.M.S.C.); (T.G.S.P.); (P.A.d.)
| | - Muriel Primon-Barros
- Gram-Positive Cocci Laboratory, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre 90050-170, RS, Brazil; (J.P.); (M.P.-B.); (R.C.Z.L.); (Í.M.S.C.); (T.G.S.P.); (P.A.d.)
| | - Romeu C. Z. Luz
- Gram-Positive Cocci Laboratory, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre 90050-170, RS, Brazil; (J.P.); (M.P.-B.); (R.C.Z.L.); (Í.M.S.C.); (T.G.S.P.); (P.A.d.)
| | - Ícaro M. S. Castro
- Gram-Positive Cocci Laboratory, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre 90050-170, RS, Brazil; (J.P.); (M.P.-B.); (R.C.Z.L.); (Í.M.S.C.); (T.G.S.P.); (P.A.d.)
| | - Thiago G. S. Paim
- Gram-Positive Cocci Laboratory, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre 90050-170, RS, Brazil; (J.P.); (M.P.-B.); (R.C.Z.L.); (Í.M.S.C.); (T.G.S.P.); (P.A.d.)
| | - Maurício Tavares
- Centro de Estudos Costeiros, Limnológicos e Marinhos (CECLIMAR), Universidade Federal do Rio Grande do Sul (UFRGS), Campus Litoral Norte, Imbé 95625-000, RS, Brazil;
| | - Rodrigo Ligabue-Braun
- Department of Pharmacosciences, UFCSPA, Porto Alegre 90050-170, RS, Brazil; (R.L.-B.); (A.S.)
| | - Pedro A. d’Azevedo
- Gram-Positive Cocci Laboratory, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre 90050-170, RS, Brazil; (J.P.); (M.P.-B.); (R.C.Z.L.); (Í.M.S.C.); (T.G.S.P.); (P.A.d.)
| | - Jeverson Frazzon
- Food Science Institute, UFRGS, Porto Alegre 90035-003, RS, Brazil;
| | - Ana P. G. Frazzon
- Department of Microbiology, Immunology and Parasitology, UFRGS, Porto Alegre 90050-170, RS, Brazil;
| | - Adriana Seixas
- Department of Pharmacosciences, UFCSPA, Porto Alegre 90050-170, RS, Brazil; (R.L.-B.); (A.S.)
| | - Michael S. Gilmore
- Massachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA
- Department of Microbiology, Harvard Medical School, Boston, MA 02115, USA
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24
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Biological Activity of Selected Natural and Synthetic Terpenoid Lactones. Int J Mol Sci 2021; 22:ijms22095036. [PMID: 34068609 PMCID: PMC8126056 DOI: 10.3390/ijms22095036] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/06/2021] [Accepted: 05/06/2021] [Indexed: 01/23/2023] Open
Abstract
Terpenoids with lactone moieties have been indicated to possess high bioactivity. Certain terpenoid lactones exist in nature, in plants and animals, but they can also be obtained by chemical synthesis. Terpenoids possessing lactone moieties are known for their cytotoxic, anti-inflammatory, antimicrobial, anticancer, and antimalarial activities. Moreover, one terpenoid lactone, artemisinin, is used as a drug against malaria. Because of these abilities, there is constant interest in new terpenoid lactones that are both isolated and synthesized, and their biological activities have been verified. In some cases, the activity of the terpenoid lactone is specifically connected to the lactone moiety. Recent works have revealed that new terpenoid lactones can demonstrate such functions and are thus considered to be potential active agents against many diseases.
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25
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Nanoformulations for Delivery of Pentacyclic Triterpenoids in Anticancer Therapies. Molecules 2021; 26:molecules26061764. [PMID: 33801096 PMCID: PMC8004206 DOI: 10.3390/molecules26061764] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/17/2021] [Accepted: 03/17/2021] [Indexed: 12/12/2022] Open
Abstract
The search for safe and effective anticancer therapies is one of the major challenges of the 21st century. The ineffective treatment of cancers, classified as civilization diseases, contributes to a decreased quality of life, health loss, and premature mortality in oncological patients. Many natural phytochemicals have anticancer potential. Pentacyclic triterpenoids, characterized by six- and five-membered ring structures, are one of the largest class of natural metabolites sourced from the plant kingdom. Among the known natural triterpenoids, we can distinguish lupane-, oleanane-, and ursane-types. Pentacyclic triterpenoids are known to have many biological activities, e.g., anti-inflammatory, antibacterial, hepatoprotective, immunomodulatory, antioxidant, and anticancer properties. Unfortunately, they are also characterized by poor water solubility and, hence, low bioavailability. These pharmacological properties may be improved by both introducing some modifications to their native structures and developing novel delivery systems based on the latest nanotechnological achievements. The development of nanocarrier-delivery systems is aimed at increasing the transport capacity of bioactive compounds by enhancing their solubility, bioavailability, stability in vivo and ensuring tumor-targeting while their toxicity and risk of side effects are significantly reduced. Nanocarriers may vary in sizes, constituents, shapes, and surface properties, all of which affect the ultimate efficacy and safety of a given anticancer therapy, as presented in this review. The presented results demonstrate the high antitumor potential of systems for delivery of pentacyclic triterpenoids.
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26
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Ghirga F, Quaglio D, Mori M, Cammarone S, Iazzetti A, Goggiamani A, Ingallina C, Botta B, Calcaterra A. A unique high-diversity natural product collection as a reservoir of new therapeutic leads. Org Chem Front 2021. [DOI: 10.1039/d0qo01210f] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We review the successful application of computer-aided methods to screen a unique and high-diversity in house collection library composed of around 1000 individual natural products.
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Affiliation(s)
- Francesca Ghirga
- Center For Life Nano Science@Sapienza
- Istituto Italiano di Tecnologia
- 00161 Rome
- Italy
| | - Deborah Quaglio
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
| | - Mattia Mori
- Department of Biotechnology
- Chemistry and Pharmacy
- “Department of Excellence 2018–2022”
- University of Siena
- 53100 Siena
| | - Silvia Cammarone
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
| | - Antonia Iazzetti
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
| | - Antonella Goggiamani
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
| | - Cinzia Ingallina
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
| | - Andrea Calcaterra
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
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27
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Kazakova O, Tret’yakova E, Baev D. Evaluation of A-azepano-triterpenoids and related derivatives as antimicrobial and antiviral agents. J Antibiot (Tokyo) 2021; 74:559-573. [PMID: 34253887 PMCID: PMC8273037 DOI: 10.1038/s41429-021-00448-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/17/2021] [Accepted: 06/24/2021] [Indexed: 02/06/2023]
Abstract
A series of semisynthetic triterpenoids with A-ring azepano- and A-seco-fragments as well as hydrazido/hydrazono-substituents at C3 and C28 has been synthesized and evaluated for antimicrobial activity against key ESKAPE pathogens and DNA viruses (HSV-1, HCMV, HPV-11). It was found that azepanouvaol 8, 3-amino-3,4-seco-4(23)-en derivatives of uvaol 21 and glycyrrhetol-dien 22 as well as azepano-glycyrrhetol-tosylate 32 showed strong antimicrobial activities against MRSA with MIC ≤ 0.15 μM that exceeds the effect of antibiotic vancomycin. Azepanobetulinic acid cyclohexyl amide 4 exhibited significant bacteriostatic effect against MRSA (MIC ≤ 0.15 μM) with low cytotoxicity to HEK-293 even at a maximum tested concentration of >20 μM (selectivity index SI 133) and may be considered a noncytotoxic anti-MRSA agent. Azepanobetulin 1, azepanouvaol 8, and azepano-glycyrrhetol 15 showed high potency towards HCMV (EC50 0.15; 0.11; 0.11 µM) with selectivity indexes SI50 115; 136; 172, respectively. The docking studies suggest the possible interactions of the leading compounds with the molecular targets.
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Affiliation(s)
- Oxana Kazakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation.
| | - Elena Tret’yakova
- grid.465349.9Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Dmitry Baev
- grid.419817.2N.N. Vorozhtzov Novosibirsk Institute of Organic Chemistry SB RAS, 9, Lavrent’ev Ave., Novosibirsk, 630090 Russian Federation
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28
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Galgowski C, Pavanelo Frare S, Rau M, Debiase Alberton M, Althoff S, Guedes A, Mendes de Cordova CM. Mollicute Anti-Adhesive and Growth Inhibition Properties of the Methanolic Extract of Propolis from the Brazilian Native Bee Melipona quadrifasciata. Chem Biodivers 2020; 18:e2000711. [PMID: 33200537 DOI: 10.1002/cbdv.202000711] [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: 08/26/2020] [Accepted: 11/13/2020] [Indexed: 11/07/2022]
Abstract
Hydroalcoholic propolis extracts from the bee species Melipona quadrifasciata have been shown to possess antimicrobial activity against different mollicute strains, but a methanolic extract (ME) could contain an increased diversity of nonpolar bioactive components with a potentially higher antimicrobial activity. The ME obtained by maceration of the propolis sample was fractionated with solvents of different polarities and then, purified by silica gel column chromatography through biomonitoring of its antimicrobial activity against mollicute strains. Analysis by gas chromatography-mass spectrometry (GC/MS) enabled the identification of compounds using the NIST library. Minimum inhibitory concentrations (MICs) of the samples were determined by broth microdilution. Anti-adhesive assays were performed with Mycoplasma pneumoniae cells. The hexane (MIC=62.5 mg/L) and dichloromethane (MIC=125 mg/L) fractions presented the most promising results against M. pneumoniae. They were fractionated into 74 subfractions, and even the best ones did not show better results (MIC>250 mg/L) than their original fractions, likely due to the loss of terpene compounds that seem to act in synergy. The dichloromethane subfraction FD4 was highlighted in the anti-adhesive assay with an inhibitory activity of 21.6 %. A synergistic effect of the nonpolar compounds in M. quadrifasciata propolis may be responsible for its antibacterial activity, but several purified components can improve its anti-adhesive properties.
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Affiliation(s)
- Caroline Galgowski
- Graduation Program in Chemistry, University of Blumenau, Rua Antonio da Veiga 140, 89030-903, Blumenau, SC, Brazil
| | - Sara Pavanelo Frare
- School of Biomedical Sciences, University of Blumenau, Rua São Paulo 2171, Campus 3, 89030-001, Blumenau, SC, Brazil
| | - Martinho Rau
- Graduation Program in Chemistry, University of Blumenau, Rua Antonio da Veiga 140, 89030-903, Blumenau, SC, Brazil.,Department of Chemistry, University of Blumenau, Rua Antonio da Veiga 140, 89030-903, Blumenau, SC, Brazil
| | - Michele Debiase Alberton
- Graduation Program in Chemistry, University of Blumenau, Rua Antonio da Veiga 140, 89030-903, Blumenau, SC, Brazil.,Department of Pharmaceutical Sciences, University of Blumenau, Rua São Paulo 2171, Campus 3, 89030-001, Blumenau, SC, Brazil
| | - Sérgio Althoff
- Department of Natural Sciences, University of Blumenau, Rua Antonio da Veiga 140, 89030-903, Blumenau, SC, Brazil
| | - Alessandro Guedes
- Department of Pharmaceutical Sciences, University of Blumenau, Rua São Paulo 2171, Campus 3, 89030-001, Blumenau, SC, Brazil
| | - Caio Mauricio Mendes de Cordova
- Graduation Program in Chemistry, University of Blumenau, Rua Antonio da Veiga 140, 89030-903, Blumenau, SC, Brazil.,Department of Pharmaceutical Sciences, University of Blumenau, Rua São Paulo 2171, Campus 3, 89030-001, Blumenau, SC, Brazil
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29
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Quaglio D, Mangoni ML, Stefanelli R, Corradi S, Casciaro B, Vergine V, Lucantoni F, Cavinato L, Cammarone S, Loffredo MR, Cappiello F, Calcaterra A, Erazo S, Ghirga F, Mori M, Imperi F, Ascenzioni F, Botta B. ent-Beyerane Diterpenes as a Key Platform for the Development of ArnT-Mediated Colistin Resistance Inhibitors. J Org Chem 2020; 85:10891-10901. [PMID: 32806095 PMCID: PMC8009527 DOI: 10.1021/acs.joc.0c01459] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Colistin is a last-resort antibiotic for the treatment of multidrug resistant Gram-negative bacterial infections. Recently, a natural ent-beyerene diterpene was identified as a promising inhibitor of the enzyme responsible for colistin resistance mediated by lipid A aminoarabinosylation in Gram-negative bacteria, namely, ArnT (undecaprenyl phosphate-alpha-4-amino-4-deoxy-l-arabinose arabinosyl transferase). Here, semisynthetic analogues of hit were designed, synthetized, and tested against colistin-resistant Pseudomonas aeruginosa strains including clinical isolates to exploit the versatility of the diterpene scaffold. Microbiological assays coupled with molecular modeling indicated that for a more efficient colistin adjuvant activity, likely resulting from inhibition of the ArnT activity by the selected compounds and therefore from their interaction with the catalytic site of ArnT, an ent-beyerane scaffold is required along with an oxalate-like group at C-18/C-19 or a sugar residue at C-19 to resemble L-Ara4N. The ent-beyerane skeleton is identified for the first time as a privileged scaffold for further cost-effective development of valuable colistin resistance inhibitors.
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Affiliation(s)
- Deborah Quaglio
- Department of Chemistry and Technology of Drugs, "Department of Excellence 2018-2022", Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Maria Luisa Mangoni
- Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Roberta Stefanelli
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Via dei Sardi 70, 00185 Rome, Italy.,Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, 00146 Rome, Italy
| | - Silvia Corradi
- Department of Chemistry and Technology of Drugs, "Department of Excellence 2018-2022", Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy.,Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161 Rome, Italy
| | - Bruno Casciaro
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161 Rome, Italy
| | - Valeria Vergine
- Department of Chemistry and Technology of Drugs, "Department of Excellence 2018-2022", Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Federica Lucantoni
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Via dei Sardi 70, 00185 Rome, Italy
| | - Luca Cavinato
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Via dei Sardi 70, 00185 Rome, Italy
| | - Silvia Cammarone
- Department of Chemistry and Technology of Drugs, "Department of Excellence 2018-2022", Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Maria Rosa Loffredo
- Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Floriana Cappiello
- Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Andrea Calcaterra
- Department of Chemistry and Technology of Drugs, "Department of Excellence 2018-2022", Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Silvia Erazo
- Department of Pharmacological and Toxicological Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, 1058 Santiago, Chile
| | - Francesca Ghirga
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161 Rome, Italy
| | - Mattia Mori
- Department of Biotechnology, Chemistry and Pharmacy, "Department of Excellence 2018-2022", University of Siena, via Aldo Moro 2, 53100 Siena, Italy
| | - Francesco Imperi
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, 00146 Rome, Italy
| | - Fiorentina Ascenzioni
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Via dei Sardi 70, 00185 Rome, Italy
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs, "Department of Excellence 2018-2022", Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
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30
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Casciaro B, Mangiardi L, Cappiello F, Romeo I, Loffredo MR, Iazzetti A, Calcaterra A, Goggiamani A, Ghirga F, Mangoni ML, Botta B, Quaglio D. Naturally-Occurring Alkaloids of Plant Origin as Potential Antimicrobials against Antibiotic-Resistant Infections. Molecules 2020; 25:molecules25163619. [PMID: 32784887 PMCID: PMC7466045 DOI: 10.3390/molecules25163619] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 07/29/2020] [Accepted: 08/08/2020] [Indexed: 02/06/2023] Open
Abstract
Antibiotic resistance is now considered a worldwide problem that puts public health at risk. The onset of bacterial strains resistant to conventional antibiotics and the scarcity of new drugs have prompted scientific research to re-evaluate natural products as molecules with high biological and chemical potential. A class of natural compounds of significant importance is represented by alkaloids derived from higher plants. In this review, we have collected data obtained from various research groups on the antimicrobial activities of these alkaloids against conventional antibiotic-resistant strains. In addition, the structure–function relationship was described and commented on, highlighting the high potential of alkaloids as antimicrobials.
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Affiliation(s)
- Bruno Casciaro
- Center For Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy; (B.C.); (L.M.); (I.R.)
| | - Laura Mangiardi
- Center For Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy; (B.C.); (L.M.); (I.R.)
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (A.I.); (A.C.); (A.G.); (D.Q.)
| | - Floriana Cappiello
- Laboratory affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (F.C.); (M.R.L.)
| | - Isabella Romeo
- Center For Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy; (B.C.); (L.M.); (I.R.)
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (A.I.); (A.C.); (A.G.); (D.Q.)
| | - Maria Rosa Loffredo
- Laboratory affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (F.C.); (M.R.L.)
| | - Antonia Iazzetti
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (A.I.); (A.C.); (A.G.); (D.Q.)
| | - Andrea Calcaterra
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (A.I.); (A.C.); (A.G.); (D.Q.)
| | - Antonella Goggiamani
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (A.I.); (A.C.); (A.G.); (D.Q.)
| | - Francesca Ghirga
- Center For Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy; (B.C.); (L.M.); (I.R.)
- Correspondence: (F.G.); (M.L.M.); (B.B.)
| | - Maria Luisa Mangoni
- Laboratory affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (F.C.); (M.R.L.)
- Correspondence: (F.G.); (M.L.M.); (B.B.)
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (A.I.); (A.C.); (A.G.); (D.Q.)
- Correspondence: (F.G.); (M.L.M.); (B.B.)
| | - Deborah Quaglio
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (A.I.); (A.C.); (A.G.); (D.Q.)
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Ferrera-Suanzes M, Prieto V, Medina-Olivera AJ, Botubol-Ares JM, Galán-Sánchez F, Rodríguez-Iglesias MA, Hernández-Galán R, Durán-Peña MJ. Synthesis of Degraded Limonoid Analogs as New Antibacterial Scaffolds against Staphylococcus aureus. Antibiotics (Basel) 2020; 9:antibiotics9080488. [PMID: 32781770 PMCID: PMC7459938 DOI: 10.3390/antibiotics9080488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/26/2020] [Accepted: 08/04/2020] [Indexed: 12/21/2022] Open
Abstract
Staphylococcus aureus and methicillin-resistant Staphylococcus aureus (MRSA) have become serious infections in humans and ruminants. S. aureus strains are showing rapid changes to develop resistance in traditional antibiotic-containing systems. In the continuous fierce fight against the emergent multi-drug resistant bacterial strains, straightforward and scalable synthetic procedures to produce new active molecules are in demand. Analysis of molecular properties points to degraded limonoids as promising candidates. In this article, we report a simple synthetic approach to obtain degraded limonoid analogs as scaffolds for new antibacterial molecules. The minimum inhibitory concentrations against S. aureus were evaluated for the stereoisomer mixtures by the broth microdilution method. Analysis of results showed that the acetylated derivatives were the most active of them all.
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Affiliation(s)
- Marta Ferrera-Suanzes
- Department of Organic Chemistry, Faculty of Sciences, Campus Universitario Río San Pedro s/n, Torre Sur, 4; planta, University of Cádiz, 11510 Puerto Real, 11009 Cádiz, Spain; (M.F.-S.); (A.J.M.-O.); (J.M.B.-A.); (R.H.-G.)
| | - Victoria Prieto
- Department of Biomedicine, Biotechnology and Public Health, Hospital Puerta del Mar, University of Cádiz, 11009 Cádiz, Spain; (V.P.); (F.G.-S.); (M.A.R.-I.)
| | - Antonio J. Medina-Olivera
- Department of Organic Chemistry, Faculty of Sciences, Campus Universitario Río San Pedro s/n, Torre Sur, 4; planta, University of Cádiz, 11510 Puerto Real, 11009 Cádiz, Spain; (M.F.-S.); (A.J.M.-O.); (J.M.B.-A.); (R.H.-G.)
| | - José Manuel Botubol-Ares
- Department of Organic Chemistry, Faculty of Sciences, Campus Universitario Río San Pedro s/n, Torre Sur, 4; planta, University of Cádiz, 11510 Puerto Real, 11009 Cádiz, Spain; (M.F.-S.); (A.J.M.-O.); (J.M.B.-A.); (R.H.-G.)
| | - Fátima Galán-Sánchez
- Department of Biomedicine, Biotechnology and Public Health, Hospital Puerta del Mar, University of Cádiz, 11009 Cádiz, Spain; (V.P.); (F.G.-S.); (M.A.R.-I.)
- Instituto de investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain
| | - Manuel A. Rodríguez-Iglesias
- Department of Biomedicine, Biotechnology and Public Health, Hospital Puerta del Mar, University of Cádiz, 11009 Cádiz, Spain; (V.P.); (F.G.-S.); (M.A.R.-I.)
- Instituto de investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain
| | - Rosario Hernández-Galán
- Department of Organic Chemistry, Faculty of Sciences, Campus Universitario Río San Pedro s/n, Torre Sur, 4; planta, University of Cádiz, 11510 Puerto Real, 11009 Cádiz, Spain; (M.F.-S.); (A.J.M.-O.); (J.M.B.-A.); (R.H.-G.)
- Instituto de investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain
| | - María Jesús Durán-Peña
- Department of Organic Chemistry, Faculty of Sciences, Campus Universitario Río San Pedro s/n, Torre Sur, 4; planta, University of Cádiz, 11510 Puerto Real, 11009 Cádiz, Spain; (M.F.-S.); (A.J.M.-O.); (J.M.B.-A.); (R.H.-G.)
- Correspondence: ; Tel.: +34-956-016-583
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