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Ngoc Toan V, Son Hai D, Thi Kim Van H, Minh Tri N, Ngoc Toan D, Thi Thanh Mai N, Dinh Thanh N. Design, synthesis, inhibitory activity, and molecular simulations study for d-glucose-conjugated thioureas containing pyrimidine ring as multitarget inhibitors against α-amylase, α-glucosidase, DDP-4, and PTP1B in Type 2 diabetes mellitus. RSC Med Chem 2024:d4md00334a. [PMID: 39185455 PMCID: PMC11342126 DOI: 10.1039/d4md00334a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Accepted: 06/24/2024] [Indexed: 08/27/2024] Open
Abstract
A series of tetra-O-acetyl-α-d-glucopyranosyl thioureas 8a-l of substituted 2-aminopyrimidines 4a-l have been designed and synthesized. The latter were prepared from corresponding chalcones 3a-l of p-bromoacetophenone and appropriate substituted benzaldehydes by their reaction with guanidine. The target thiourea compounds 8a-l exhibited significant inhibitory activity in vitro against enzymes that were related to type 2 diabetes mellitus, including α-amylase, α-glucosidase, DPP-4, and PTP1B. Amongst these thioureas, compound 8k with an ortho-methoxy group was the most potential enzyme inhibitor against α-amylase with an IC50 value of 9.72 ± 0.34 μM. Its meta-isomer 8j was the strongest inhibitor against α-glucosidase with IC50 = 9.73 ± 0.72 μM. In the inhibition against DPP-4, compound 8f with a para-bromo substituent exhibited the strongest activity with an IC50 value of 2.53 ± 0.03 nM. In the inhibition against PTP1B, compound 8h with a para-isopropyl substituent had the strongest inhibitory activity with an IC50 value of 2.74 ± 0.03 μM. The enzyme kinetics of the most active compounds, including 8j, 8f and 8h against α-glucosidase, DPP-4, and PTP1B, respectively, were studied. The obtained results showed that 8j was a competitive α-glucosidase inhibitor with an inhibitory constant K I value of 9.31 μM. Compound 8f was a non-competitive inhibitor for DDP-4 with an inhibitory constant K I value of 12.57 μM. Compound 8h was also a non-competitive inhibitor for DDP-4 with an inhibitory constant K I value of 12.41 μM. The cytotoxicity of the most active compounds, including 8f and 8k (against α-amylase), 8i and 8j (against α-glucosidase), 8a, 8f, and 8g (against DPP-4), and 8d, 8f, and 8h (against PTP1B) was screened. The obtained cytotoxicity showed that all tested inhibitors were noncytotoxic to human normal cell line 3T3. Induced fit docking simulations of all synthesized compounds 8a-l were performed on four enzymes 4W93 (for α-amylase), 3TOP (for α-glucosidase), 3W2T (for DPP-4), and 1NNY (for PTP1B). Key interactions of each of these ligands with residues in the active pocket of each studied enzyme have been shown.
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Affiliation(s)
- Vu Ngoc Toan
- Faculty of Chemistry, University of Science (Vietnam National University, Hanoi) 19 Le Thanh Tong, Hoan Kiem Hanoi Vietnam
- Academy of Military Science and Technology, Ministry of Defence, Institute of New Technology 17 Hoang Sam, Cau Giay Hanoi Vietnam
| | - Do Son Hai
- Faculty of Chemistry, University of Science (Vietnam National University, Hanoi) 19 Le Thanh Tong, Hoan Kiem Hanoi Vietnam
- Ministry of Public Security of Vietnam, Institute of Science and Technology 47 Pham Van Dong, Cau Giay Hanoi Vietnam
| | - Hoang Thi Kim Van
- Faculty of Chemistry, University of Science (Vietnam National University, Hanoi) 19 Le Thanh Tong, Hoan Kiem Hanoi Vietnam
- Faculty of Chemical Technology, Viet Tri University of Industry Tien Kien, Lam Thao Phu Tho Vietnam
| | - Nguyen Minh Tri
- Faculty of Chemistry, University of Science (Vietnam National University, Hanoi) 19 Le Thanh Tong, Hoan Kiem Hanoi Vietnam
- Academy of Military Science and Technology, Ministry of Defence, Institute of New Technology 17 Hoang Sam, Cau Giay Hanoi Vietnam
| | - Duong Ngoc Toan
- Faculty of Chemistry, University of Science (Vietnam National University, Hanoi) 19 Le Thanh Tong, Hoan Kiem Hanoi Vietnam
- Faculty of Chemistry, Thai Nguyen University of Education 20 Luong Ngoc Quyen Thai Nguyen Vietnam
| | - Nguyen Thi Thanh Mai
- Faculty of Chemistry, University of Science (Vietnam National University, Hanoi) 19 Le Thanh Tong, Hoan Kiem Hanoi Vietnam
- Faculty of Chemical Technology, Ha Noi University of Industry 298 Cau Dien Road, North Tu Liem Hanoi Vietnam
| | - Nguyen Dinh Thanh
- Faculty of Chemistry, University of Science (Vietnam National University, Hanoi) 19 Le Thanh Tong, Hoan Kiem Hanoi Vietnam
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Ravishankar S, Baldelli V, Angeletti C, Raffaelli N, Landini P, Rossi E. Fluoropyrimidines affect de novo pyrimidine synthesis impairing biofilm formation in Escherichia coli. Biofilm 2024; 7:100180. [PMID: 38370152 PMCID: PMC10869245 DOI: 10.1016/j.bioflm.2024.100180] [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: 10/11/2023] [Revised: 01/24/2024] [Accepted: 01/29/2024] [Indexed: 02/20/2024] Open
Abstract
Antivirulence agents are considered a promising strategy to treat bacterial infections. Fluoropyrimidines possess antivirulence and antibiofilm activity against Gram-negative bacteria; however, their mechanism of action is yet unknown. Consistent with their known antibiofilm activity, fluoropyrimidines, particularly 5-fluorocytosine (5-FC), impair curli-dependent surface adhesion by Escherichia coli MG1655 via downregulation of curli fimbriae gene transcription. Curli inhibition requires fluoropyrimidine conversion into fluoronucleotides and is not mediated by c-di-GMP or the ymg-rcs envelope stress response axis, previously suggested as the target of fluorouracil antibiofilm activity in E. coli. In contrast, 5-FC hampered the transcription of curli activators RpoS and stimulated the expression of Fis, a curli repressor affected by nucleotide availability. This last observation suggested a possible perturbation of the de novo pyrimidine biosynthesis by 5-FC: indeed, exposure to 5-FC resulted in a ca. 2-fold reduction of UMP intracellular levels while not affecting ATP. Consistently, expression of the de novo pyrimidine biosynthesis genes carB and pyrB was upregulated in the presence of 5-FC. Our results suggest that the antibiofilm activity of fluoropyrimidines is mediated, at least in part, by perturbation of the pyrimidine nucleotide pool. We screened a genome library in search of additional determinants able to counteract the effects of 5-FC. We found that a DNA fragment encoding the unknown protein D8B36_18,480 and the N-terminal domain of the penicillin-binding protein 1b (PBP1b), involved in peptidoglycan synthesis, could restore curli production in the presence of 5-FC. Deletion of the PBP1b-encoding gene mrcB, induced csgBAC transcription, while overexpression of the gene encoding the D8B36_18,480 protein obliterated its expression, possibly as part of a coordinated response in curli regulation with PBP1b. While the two proteins do not appear to be direct targets of 5-FC, their involvement in curli regulation suggests a connection between peptidoglycan biosynthesis and curli production, which might become even more relevant upon pyrimidine starvation and reduced availability of UDP-sugars needed in cell wall biosynthesis. Overall, our findings link the antibiofilm activity of fluoropyrimidines to the redirection of at least two global regulators (RpoS, Fis) by induction of pyrimidine starvation. This highlights the importance of the de novo pyrimidines biosynthesis pathway in controlling virulence mechanisms in different bacteria and makes the pathway a potential target for antivirulence strategies.
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Affiliation(s)
| | | | - Carlo Angeletti
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, Italy
| | - Nadia Raffaelli
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, Italy
| | - Paolo Landini
- Department of Biosciences, University of Milan, Milan, Italy
| | - Elio Rossi
- Department of Biosciences, University of Milan, Milan, Italy
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Kumar M, Parveen, Raj N, Khatoon S, Fakhri KU, Kumar P, Alamri MA, Kamal M, Manzoor N, Harsha, Solanki R, Elossaily GM, Asiri YI, Hassan MZ, Kapur MK. In-silico and in-vitro evaluation of antifungal bioactive compounds from Streptomyces sp. strain 130 against Aspergillus flavus. J Biomol Struct Dyn 2024:1-19. [PMID: 38319066 DOI: 10.1080/07391102.2024.2313167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 01/25/2024] [Indexed: 02/07/2024]
Abstract
Streptomyces spp. are considered excellent reservoirs of natural bioactive compounds. The study evaluated the bioactive potential of secondary metabolites from Streptomyces sp. strain 130 through PKS-I and NRPS gene-clusters screening. GC-MS analysis was done for metabolic profiling of bioactive compounds from strain 130 in the next set of experiments. Identified antifungal compounds underwent ADMET analyses to screen their toxicity. All compounds' molecular docking was done with the structural gene products of the aflatoxin biosynthetic pathway of Aspergillus flavus. MD simulations were utilized to evaluate the stability of protein-ligand complexes under physiological conditions. Based on the in-silico studies, compound 2,4-di-tert butyl-phenol (DTBP) was selected for in-vitro studies against Aspergillus flavus. Simultaneously, bioactive compounds were extracted from strain 130 in two different solvents (ethyl-acetate and methanol) and used for similar assays. The MIC value of DTBP was found to be 314 µg/mL, whereas in ethyl-acetate extract and methanol-extract, it was 250 and 350 µg/mL, respectively. A mycelium growth assay was done to analyze the effect of compounds/extracts on the mycelium formation of Aspergillus flavus. In agar diffusion assay, zone of inhibitions in DTBP, ethyl-acetate extract, and methanol extract were observed with diameters of 11.3, 13.3, and 7.6 mm, respectively. In the growth curve assay, treated samples have delayed the growth of fungi, which signified that the compounds have a fungistatic nature. Spot assay has determined the fungal sensitivity to a sub-minimum inhibitory concentration of antifungal compounds. The study's results suggested that DTBP can be exploited for antifungal-drug development.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Munendra Kumar
- Department of Zoology, Rajiv Gandhi University, Doimukh, India
| | - Parveen
- Medical Mycology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Nafis Raj
- Medical Mycology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Shabana Khatoon
- Medical Mycology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | | | - Prateek Kumar
- Department of Zoology, University of Allahabad, Prayagraj, India
| | - Mubarak A Alamri
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Mehnaz Kamal
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Nikhat Manzoor
- Medical Mycology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Harsha
- Microbial Technology Lab, Acharya Narendra Dev College, University of Delhi, Govindpuri, Kalkaji, India New Delhi
| | - Renu Solanki
- Deen Dayal Upadhyaya College, University of Delhi, New Delhi, India
| | - Gehan M Elossaily
- Department of Basic Medical Sciences, College of Medicine, AlMaarefa University, Riyadh, Saudi Arabia
| | - Yahya I Asiri
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Mohd Zaheen Hassan
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Monisha Khanna Kapur
- Microbial Technology Lab, Acharya Narendra Dev College, University of Delhi, Govindpuri, Kalkaji, India New Delhi
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Zore M, San-Martin-Galindo P, Reigada I, Hanski L, Fallarero A, Yli-Kauhaluoma J, Patel JZ. Design and synthesis of etrasimod derivatives as potent antibacterial agents against Gram-positive bacteria. Eur J Med Chem 2024; 263:115921. [PMID: 37948883 DOI: 10.1016/j.ejmech.2023.115921] [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: 09/14/2023] [Revised: 10/19/2023] [Accepted: 10/27/2023] [Indexed: 11/12/2023]
Abstract
The emergence of multidrug-resistant bacteria along with a declining pipeline of clinically useful antibiotics has led to the urgent need for the development of more effective antibacterial agents. Inspired by our recent report on the antibacterial activity of etrasimod, an immunomodulating drug candidate, we prepared a series of etrasimod derivatives by varying substituents on the phenyl ring, altering the central tricyclic aromatic ring, and modifying the carboxyl group. From this series of compounds, indole derivative 24f was identified as the most potent antibacterial compound, with the minimum inhibitory concentration (MIC) values between 2.5 and 10 μM against various Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA), S. epidermidis and enterococci. Moreover, 24f exhibited rapid bactericidal activity against S. aureus, low toxicity and hemolytic activity, and a synergistic effect with gentamicin against S. aureus, MRSA, and Enterococcus faecalis. Furthermore, it was shown that neither etrasimod nor 24f affects S. aureus cell membranes. Importantly, 24f did not induce resistance in S. aureus, representing a significant improvement compared to etrasimod. Finally, the antibacterial activity of etrasimod and 24f against S. aureus and MRSA was confirmed in vivo in a Caenorhabditis elegans infection model. Taken together, our study highlights the value of etrasimod and its derivatives as potential antibacterial candidates for combating infections caused by Gram-positive bacteria.
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Affiliation(s)
- Matej Zore
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00014, Helsinki, Finland
| | - Paola San-Martin-Galindo
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00014, Helsinki, Finland
| | - Inés Reigada
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00014, Helsinki, Finland
| | - Leena Hanski
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00014, Helsinki, Finland
| | - Adyary Fallarero
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00014, Helsinki, Finland
| | - Jari Yli-Kauhaluoma
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00014, Helsinki, Finland
| | - Jayendra Z Patel
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00014, Helsinki, Finland.
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Faleye OS, Boya BR, Lee JH, Choi I, Lee J. Halogenated Antimicrobial Agents to Combat Drug-Resistant Pathogens. Pharmacol Rev 2023; 76:90-141. [PMID: 37845080 DOI: 10.1124/pharmrev.123.000863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 08/07/2023] [Accepted: 09/29/2023] [Indexed: 10/18/2023] Open
Abstract
Antimicrobial resistance presents us with a potential global crisis as it undermines the abilities of conventional antibiotics to combat pathogenic microbes. The history of antimicrobial agents is replete with examples of scaffolds containing halogens. In this review, we discuss the impacts of halogen atoms in various antibiotic types and antimicrobial scaffolds and their modes of action, structure-activity relationships, and the contributions of halogen atoms in antimicrobial activity and drug resistance. Other halogenated molecules, including carbohydrates, peptides, lipids, and polymeric complexes, are also reviewed, and the effects of halogenated scaffolds on pharmacokinetics, pharmacodynamics, and factors affecting antimicrobial and antivirulence activities are presented. Furthermore, the potential of halogenation to circumvent antimicrobial resistance and rejuvenate impotent antibiotics is addressed. This review provides an overview of the significance of halogenation, the abilities of halogens to interact in biomolecular settings and enhance pharmacological properties, and their potential therapeutic usages in preventing a postantibiotic era. SIGNIFICANCE STATEMENT: Antimicrobial resistance and the increasing impotence of antibiotics are critical threats to global health. The roles and importance of halogen atoms in antimicrobial drug scaffolds have been established, but comparatively little is known of their pharmacological impacts on drug resistance and antivirulence activities. This review is the first to extensively evaluate the roles of halogen atoms in various antibiotic classes and pharmacological scaffolds and to provide an overview of their ability to overcome antimicrobial resistance.
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Affiliation(s)
- Olajide Sunday Faleye
- School of Chemical Engineering (O.S.F., B.R.B., J.-H.L., J.L.) and Department of Medical Biotechnology (I.C.), Yeungnam University, Gyeongsan, Republic of Korea
| | - Bharath Reddy Boya
- School of Chemical Engineering (O.S.F., B.R.B., J.-H.L., J.L.) and Department of Medical Biotechnology (I.C.), Yeungnam University, Gyeongsan, Republic of Korea
| | - Jin-Hyung Lee
- School of Chemical Engineering (O.S.F., B.R.B., J.-H.L., J.L.) and Department of Medical Biotechnology (I.C.), Yeungnam University, Gyeongsan, Republic of Korea
| | - Inho Choi
- School of Chemical Engineering (O.S.F., B.R.B., J.-H.L., J.L.) and Department of Medical Biotechnology (I.C.), Yeungnam University, Gyeongsan, Republic of Korea
| | - Jintae Lee
- School of Chemical Engineering (O.S.F., B.R.B., J.-H.L., J.L.) and Department of Medical Biotechnology (I.C.), Yeungnam University, Gyeongsan, Republic of Korea
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Nicolosi RM, Bonincontro G, Imperia E, Badiali C, De Vita D, Sciubba F, Dugo L, Guarino MPL, Altomare A, Simonetti G, Pasqua G. Protective Effect of Procyanidin-Rich Grape Seed Extract against Gram-Negative Virulence Factors. Antibiotics (Basel) 2023; 12:1615. [PMID: 37998817 PMCID: PMC10668874 DOI: 10.3390/antibiotics12111615] [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: 10/08/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/25/2023] Open
Abstract
Biofilm formation and lipopolysaccharide (LPS) are implicated in the pathogenesis of gastrointestinal (GI) diseases caused by Gram-negative bacteria. Grape seeds, wine industry by-products, have antioxidant and antimicrobial activity. In the present study, the protective effect of procyanidin-rich grape seed extract (prGSE), from unfermented pomace of Vitis vinifera L. cv Bellone, on bacterial LPS-induced oxidative stress and epithelial barrier integrity damage has been studied in a model of Caco-2 cells. The prGSE was characterized at the molecular level using HPLC and NMR. The in vitro activity of prGSE against formation of biofilm of Salmonella enterica subsp. enterica serovar Typhimurium and Escherichia coli was investigated. In vivo, prGSE activity using infected Galleria mellonella larvae has been evaluated. The results show that the prGSE, if administered with LPS, can significantly reduce the LPS-induced permeability alteration. Moreover, the ability of the extract to prevent Reactive Oxygen Species (ROS) production induced by the LPS treatment of Caco-2 cells was demonstrated. prGSE inhibited the biofilm formation of E. coli and S. Typhimurium. In terms of in vivo activity, an increase in survival of infected G. mellonella larvae after treatment with prGSE was demonstrated. In conclusion, grape seed extracts could be used to reduce GI damage caused by bacterial endotoxin and biofilms of Gram-negative bacteria.
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Affiliation(s)
- Roberta Maria Nicolosi
- Department of Environmental Biology, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (R.M.N.); (G.B.); (C.B.); (D.D.V.); (F.S.); (G.P.)
| | - Graziana Bonincontro
- Department of Environmental Biology, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (R.M.N.); (G.B.); (C.B.); (D.D.V.); (F.S.); (G.P.)
| | - Elena Imperia
- Department of Science and Technology for Sustainable Development and One Health, University Campus Bio-Medico of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy; (E.I.); (L.D.)
| | - Camilla Badiali
- Department of Environmental Biology, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (R.M.N.); (G.B.); (C.B.); (D.D.V.); (F.S.); (G.P.)
| | - Daniela De Vita
- Department of Environmental Biology, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (R.M.N.); (G.B.); (C.B.); (D.D.V.); (F.S.); (G.P.)
| | - Fabio Sciubba
- Department of Environmental Biology, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (R.M.N.); (G.B.); (C.B.); (D.D.V.); (F.S.); (G.P.)
- NMR-Based Metabolomics Laboratory (NMLab), Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Laura Dugo
- Department of Science and Technology for Sustainable Development and One Health, University Campus Bio-Medico of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy; (E.I.); (L.D.)
| | - Michele Pier Luca Guarino
- Research Unit of Gastroenterology, Department of Medicine and Surgery, University Campus Bio-Medico of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy;
- Operative Research Unit of Gastroenterology, University Policlinico Foundation Campus Bio-Medico, Via Alvaro del Portillo 200, 00128 Rome, Italy
| | - Annamaria Altomare
- Department of Science and Technology for Sustainable Development and One Health, University Campus Bio-Medico of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy; (E.I.); (L.D.)
- Research Unit of Gastroenterology, Department of Medicine and Surgery, University Campus Bio-Medico of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy;
| | - Giovanna Simonetti
- Department of Environmental Biology, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (R.M.N.); (G.B.); (C.B.); (D.D.V.); (F.S.); (G.P.)
| | - Gabriella Pasqua
- Department of Environmental Biology, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (R.M.N.); (G.B.); (C.B.); (D.D.V.); (F.S.); (G.P.)
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Eghbalifam N, Shojaosadati SA, Hashemi-Najafabadi S. Role of bioactive magnetic nanoparticles in the prevention of wound pathogenic biofilm formation using smart nanocomposites. J Nanobiotechnology 2023; 21:161. [PMID: 37211593 DOI: 10.1186/s12951-023-01905-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 04/19/2023] [Indexed: 05/23/2023] Open
Abstract
BACKGROUND Biofilm formation and its resistance to various antibiotics is a serious health problem in the treatment of wound infections. An ideal wound dressing should have characteristics such as protection of wound from microbial infection, suitable porosity (to absorb wound exudates), proper permeability (to maintain wound moisture), nontoxicity, and biocompatibility. Although silver nanoparticles (AgNPs) have been investigated as antimicrobial agents, their limitations in penetrating into the biofilm, affecting their efficiency, have consistently been an area for further research. RESULTS Consequently, in this study, the optimal amounts of natural and synthetic polymers combination, along with AgNPs, accompanied by iron oxide nanoparticles (IONPs), were utilized to fabricate a smart bionanocomposite that meets all the requirements of an ideal wound dressing. Superparamagnetic IONPs (with the average size of 11.8 nm) were synthesized through co-precipitation method using oleic acid to improve their stability. It was found that the addition of IONPs to bionanocomposites had a synergistic effect on their antibacterial and antibiofilm properties. Cytotoxicity assay results showed that nanoparticles does not considerably affect eukaryotic cells compared to prokaryotic cells. Based on the images obtained by confocal laser scanning microscopy (CLSM), significant AgNPs release was observed when an external magnetic field (EMF) was applied to the bionanocomposites loaded with IONPs, which increased the antibacterial activity and inhibited the formation of biofilm significantly. CONCLUSION These finding indicated that the nanocomposite recommended can have an efficient properties for the management of wounds through prevention and treatment of antibiotic-resistant biofilm.
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Affiliation(s)
- Naeimeh Eghbalifam
- Biotechnology Department, Faculty of Chemical Engineering, Tarbiat Modares University, 14155-4838, Tehran, Iran
| | - Seyed Abbas Shojaosadati
- Biotechnology Department, Faculty of Chemical Engineering, Tarbiat Modares University, 14155-4838, Tehran, Iran.
| | - Sameereh Hashemi-Najafabadi
- Biomedical Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
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Toan DN, Thanh ND, Truong MX, Van DT, Thanh NN. Design, synthesis, molecular docking study and molecular dynamics simulation of new coumarin-pyrimidine hybrid compounds having anticancer and antidiabetic activity. Med Chem Res 2023; 32:1143-1162. [PMID: 37305206 PMCID: PMC10119543 DOI: 10.1007/s00044-023-03060-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 04/06/2023] [Indexed: 06/13/2023]
Abstract
Coumarin-pyrimidine hybrid compounds were synthesized by condensation reaction of α,β-unsaturated ketones of 6-acetyl-5-hydroxy-4-methylcoumarin with guanidine. The reaction yields were of 42-62%. The antidiabetic and anticancer activities of these compounds were examined. These compounds displayed low toxicity to two cancer cell lines (including KB and HepG2 ones), but exhibited remarkably active against α-amylase with IC50 values of 102.32 ± 1.15 μM to 249.52 ± 1.14 μM and against α-glucosidase with IC50 values of 52.16 ± 1.12 μM to 184.52 ± 1.15 μM. Amongst these compounds, 6c was the best inhibitory activity against α-amylase, and 6f had the highest activity against α-glucosidase. The kinetics of inhibitor 6f was competitive α-glucosidase inhibitor property. ADMET predictions showed that almost all synthesized compounds exhibited drug-like activity. IFD and MD simulations were carried out on enzymes 4W93 and 5NN8 to elucidate inhibitory potential of 6c and 6f against tested enzymes. The binding free energy calculation by MM-GBSA approach showed that Coulomb, lipophilic and van der Waals energy terms are major contributors for the inhibitor binding. Molecular dynamics simulations in water solvent system were carried out for the 6f/5NN8 complex to elucidate the variability of active interactions between ligand 6f and active pockets of this enzyme. Graphical Abstract
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Affiliation(s)
- Duong Ngoc Toan
- Faculty of Chemistry, Thai Nguyen University of Education, 20 Luong Ngoc Quyen, Thai Nguyen, Viet Nam
- Faculty of Chemistry, VNU University of Science, 19 Le Thanh Tong, Hoan Kiem, Ha Noi, Viet Nam
| | - Nguyen Dinh Thanh
- Faculty of Chemistry, VNU University of Science, 19 Le Thanh Tong, Hoan Kiem, Ha Noi, Viet Nam
| | - Mai Xuan Truong
- Faculty of Chemistry, Thai Nguyen University of Education, 20 Luong Ngoc Quyen, Thai Nguyen, Viet Nam
| | - Dinh Thuy Van
- Faculty of Chemistry, Thai Nguyen University of Education, 20 Luong Ngoc Quyen, Thai Nguyen, Viet Nam
| | - Nguyen Ngoc Thanh
- Faculty of Chemical Technology, Ha Noi University of Industry, 298 Cau Dien Road, North Tu Liem, Ha Noi, Viet Nam
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Shi LW, Zhuang QQ, Wang TQ, Jiang XD, Liu Y, Deng JW, Sun HH, Li Y, Li HH, Liu TB, Liu JZ. Synthetic Antibacterial Quaternary Phosphorus Salts Promote Methicillin-Resistant Staphylococcus aureus-Infected Wound Healing. Int J Nanomedicine 2023; 18:1145-1158. [PMID: 36915699 PMCID: PMC10007997 DOI: 10.2147/ijn.s398748] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/21/2023] [Indexed: 03/09/2023] Open
Abstract
Background Drug-resistant microbes pose a global health concern, requiring the urgent development of effective antibacterial agents and strategies in clinical practice. Therefore, there is an urgent need to explore novel antibacterial materials to effectively eliminate bacteria. The synthesis of quaternary phosphonium salt in haloargentate systems, wherein the phosphorus atom is represented in a cationic form, is a possible strategy for the development of antibacterial materials. Methods Using (triphenyl)phosphonium-based quaternary phosphorus salts with different spacer lengths (n=2, 4, 6) as a template, we designed three kinds of quaternary phosphorus salts as effective antibacterial agents against drug-resistant bacteria. Results The synthesized quaternary phosphorus salt of (1,4-DBTPP)Br2 effectively prevented the formation of the bacterial biofilms, and degraded bacterial membranes and cell walls by promoting the production of reactive oxygen species, which exhibited effective therapeutic effects in a rat model of a superficial wound infected with methicillin-resistant Staphylococcus aureus. Conclusion The quaternary phosphorus salt (1,4-DBTPP)Br2 demonstrated hemocompatibility and low toxicity, revealing its potential in the treatment of clinical infections.
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Affiliation(s)
- Liang-Wen Shi
- Department of Otorhinolaryngology, Fujian Medical University Union Hospital, Fuzhou, Fujian, People's Republic of China
| | - Quan-Quan Zhuang
- Department of Pharmacy, Affiliated Quanzhou First Hospital of Fujian Medical University, Quanzhou, Fujian, People's Republic of China
| | - Tai-Qin Wang
- Department of Otorhinolaryngology, Fujian Medical University Union Hospital, Fuzhou, Fujian, People's Republic of China
| | - Xian-Dong Jiang
- Department of laboratory medicine, the School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Yue Liu
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, People's Republic of China
| | - Jing-Wen Deng
- Department of Otorhinolaryngology, Fujian Medical University Union Hospital, Fuzhou, Fujian, People's Republic of China
| | - Huan-Huan Sun
- Department of Otolaryngology, Changji Region Hospital of Traditional Chinese Medicine, Changji, Xinjiang, People's Republic of China
| | - Yi Li
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, People's Republic of China
| | - Hao-Hong Li
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, People's Republic of China
| | - Ting-Bo Liu
- Fujian Institute of Hematology, Fujian Provincial Key Laboratory of Hematology, Fujian Medical University Union Hospital, Fuzhou, Fujian, People's Republic of China
| | - Jian-Zhi Liu
- Department of Otorhinolaryngology, Fujian Medical University Union Hospital, Fuzhou, Fujian, People's Republic of China
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10
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Zore M, Gilbert-Girard S, San-Martin-Galindo P, Reigada I, Hanski L, Savijoki K, Fallarero A, Yli-Kauhaluoma J, Patel JZ. Repurposing the Sphingosine-1-Phosphate Receptor Modulator Etrasimod as an Antibacterial Agent Against Gram-Positive Bacteria. Front Microbiol 2022; 13:926170. [PMID: 35733960 PMCID: PMC9207386 DOI: 10.3389/fmicb.2022.926170] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 05/17/2022] [Indexed: 11/13/2022] Open
Abstract
New classes of antibiotics are urgently needed in the fight against multidrug-resistant bacteria. Drug repurposing has emerged as an alternative approach to accelerate antimicrobial research and development. In this study, we screened a library of sphingosine-1-phosphate receptor (S1PR) modulators against Staphylococcus aureus and identified five active compounds. Among them, etrasimod (APD334), an investigational drug for the treatment of ulcerative colitis, displayed the best inhibitory activity against S. aureus when growing as free-floating planktonic cells and within biofilms. In follow-up studies, etrasimod showed bactericidal activity and drastic reduction of viable bacteria within 1 h of exposure. It also displayed a potent activity against other Gram-positive bacteria, including penicillin- and methicillin-resistant S. aureus strains, S. epidermidis, and Enterococcus faecalis, with a minimum inhibitory concentration (MIC) ranging from 5 to 10 μM (2.3–4.6 μg/mL). However, no inhibition of viability was observed against Gram-negative bacteria Acinetobacter baumannii, Escherichia coli, and Pseudomonas aeruginosa, showing that etrasimod preferably acts against Gram-positive bacteria. On the other hand, etrasimod was shown to inhibit quorum sensing (QS) signaling in Chromobacterium violaceum, suggesting that it may block the biofilm formation by targeting QS in certain Gram-negative bacteria. Furthermore, etrasimod displayed a synergistic effect with gentamicin against S. aureus, thus showing potential to be used in antibiotic combination therapy. Finally, no in vitro toxicity toward mammalian cells was observed. In conclusion, our study reports for the first time the potential of etrasimod as a repurposed antibacterial compound against Gram-positive bacteria.
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Affiliation(s)
- Matej Zore
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Shella Gilbert-Girard
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Paola San-Martin-Galindo
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Inés Reigada
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Leena Hanski
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Kirsi Savijoki
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Adyary Fallarero
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Jari Yli-Kauhaluoma
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Jayendra Z. Patel
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
- *Correspondence: Jayendra Z. Patel,
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