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Şimşek E, Kim K, Lu J, Silver A, Luo N, Lee CT, You L. A 'rich-get-richer' mechanism drives patchy dynamics and resistance evolution in antibiotic-treated bacteria. Mol Syst Biol 2024; 20:880-897. [PMID: 38877321 PMCID: PMC11297297 DOI: 10.1038/s44320-024-00046-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 05/21/2024] [Accepted: 05/23/2024] [Indexed: 06/16/2024] Open
Abstract
Bacteria in nature often form surface-attached communities that initially comprise distinct subpopulations, or patches. For pathogens, these patches can form at infection sites, persist during antibiotic treatment, and develop into mature biofilms. Evidence suggests that patches can emerge due to heterogeneity in the growth environment and bacterial seeding, as well as cell-cell signaling. However, it is unclear how these factors contribute to patch formation and how patch formation might affect bacterial survival and evolution. Here, we demonstrate that a 'rich-get-richer' mechanism drives patch formation in bacteria exhibiting collective survival (CS) during antibiotic treatment. Modeling predicts that the seeding heterogeneity of these bacteria is amplified by local CS and global resource competition, leading to patch formation. Increasing the dose of a non-eradicating antibiotic treatment increases the degree of patchiness. Experimentally, we first demonstrated the mechanism using engineered Escherichia coli and then demonstrated its applicability to a pathogen, Pseudomonas aeruginosa. We further showed that the formation of P. aeruginosa patches promoted the evolution of antibiotic resistance. Our work provides new insights into population dynamics and resistance evolution during surface-attached bacterial growth.
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Affiliation(s)
- Emrah Şimşek
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
- Center for Quantitative Biodesign, Duke University, Durham, NC, 27708, USA
| | - Kyeri Kim
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
- Center for Quantitative Biodesign, Duke University, Durham, NC, 27708, USA
| | - Jia Lu
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
- Center for Quantitative Biodesign, Duke University, Durham, NC, 27708, USA
| | - Anita Silver
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
- Center for Quantitative Biodesign, Duke University, Durham, NC, 27708, USA
| | - Nan Luo
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 518055, Shenzhen, China
| | - Charlotte T Lee
- Center for Quantitative Biodesign, Duke University, Durham, NC, 27708, USA
- Department of Biology, Duke University, Durham, NC, 27708, USA
| | - Lingchong You
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA.
- Center for Quantitative Biodesign, Duke University, Durham, NC, 27708, USA.
- Center for Genomic and Computational Biology, Duke University, Durham, NC, 27708, USA.
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, 27708, USA.
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2
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Glen KA, Lamont IL. Penicillin-binding protein 3 sequence variations reduce susceptibility of Pseudomonas aeruginosa to β-lactams but inhibit cell division. J Antimicrob Chemother 2024:dkae203. [PMID: 39001778 DOI: 10.1093/jac/dkae203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 06/03/2024] [Indexed: 07/15/2024] Open
Abstract
BACKGROUND β-lactam antibiotics, which inhibit penicillin-binding protein 3 (PBP3) that is required for cell division, play a key role in treating P. aeruginosa infections. Some sequence variations in PBP3 have been associated with β-lactam resistance but the effects of variations on antibiotic susceptibility and on cell division have not been quantified. Antibiotic efflux can also reduce susceptibility. OBJECTIVES To quantify the effects of PBP3 variations on β-lactam susceptibility and cell morphology in P. aeruginosa. METHODS Nineteen PBP3 variants were expressed from a plasmid in the reference strain P. aeruginosa PAO1 and genome engineering was used to construct five mutants expressing PBP3 variants from the chromosome. The effects of the variations on β-lactam minimum inhibitory concentration (MIC) and cell morphology were measured. RESULTS Some PBP3 variations reduced susceptibility to a variety of β-lactam antibiotics including meropenem, ceftazidime, cefepime and ticarcillin with different variations affecting different antibiotics. None of the tested variations reduced susceptibility to imipenem or piperacillin. Antibiotic susceptibility was further reduced when PBP3 variants were expressed in mutant bacteria overexpressing the MexAB-OprM efflux pump, with some variations conferring clinical levels of resistance. Some PBP3 variations, and sub-MIC levels of β-lactams, reduced bacterial growth rates and inhibited cell division, causing elongated cells. CONCLUSIONS PBP3 variations in P. aeruginosa can increase the MIC of multiple β-lactam antibiotics, although not imipenem or piperacillin. PBP3 variations, or the presence of sub-lethal levels of β-lactams, result in elongated cells indicating that variations reduce the activity of PBP3 and may reduce bacterial fitness.
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Affiliation(s)
- Karl A Glen
- Department of Biochemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Iain L Lamont
- Department of Biochemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand
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Michalski J, Cłapa T, Narożna D, Syguda A, van Oostrum P, Reimhult E. Morpholinium-based Ionic Liquids as Potent Antibiofilm and Sensitizing Agents for the Control of Pseudomonas aeruginosa. J Mol Biol 2024; 436:168627. [PMID: 38795768 DOI: 10.1016/j.jmb.2024.168627] [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: 01/10/2024] [Revised: 05/17/2024] [Accepted: 05/20/2024] [Indexed: 05/28/2024]
Abstract
Rising antimicrobial resistance is a critical threat to worldwide public health. To address the increasing antibiotic tolerance, diverse antimicrobial agents are examined for their ability to decrease bacterial resistance. One of the most relevant and persistent human pathogens is Pseudomonas aeruginosa. Our study investigates the anti-biofilm and sensitizing activity of 12 morpholinium-based ionic liquids with herbicidal anions on four clinically relevant P. aeruginosa strains. Among all tested compounds, four ionic liquids prevented biofilm formation at sub-minimum inhibitory concentrations for all investigated strains. For the first time, we established a hormetic effect on biofilm formation for P. aeruginosa strains subjected to an ionic liquid treatment. Interestingly, while ionic liquids with 4,4-didecylmorpholinium [Dec2Mor]+ are more efficient against planktonic bacteria, 4-decyl-4-ethylmorpholinium [DecEtMor]+ showed more potent inhibition of biofilm formation. Ionic liquids with 4,4-didecylmorpholinium ([Dec2Mor]+) cations even induced biofilm formation by strain 39016 at high concentrations due to flocculation. Morpholinium-based ionic liquids were also shown to enhance the efficacy of commonly used antibiotics from different chemical groups. We demonstrate that this synergy is associated with the mode of action of the antibiotics.
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Affiliation(s)
- Jakub Michalski
- Poznań University of Life Sciences, Department of Biochemistry and Biotechnology, Dojazd 11, 60-632 Poznan, Poland
| | - Tomasz Cłapa
- Poznań University of Life Sciences, Department of Biochemistry and Biotechnology, Dojazd 11, 60-632 Poznan, Poland.
| | - Dorota Narożna
- Poznań University of Life Sciences, Department of Biochemistry and Biotechnology, Dojazd 11, 60-632 Poznan, Poland
| | - Anna Syguda
- Poznan University of Technology, Department of Chemical Technology, Berdychowo 4, 60-965 Poznan, Poland
| | - Peter van Oostrum
- BOKU University, Department of Bionanosciences, Institute of Colloid and Biointerface Science, Muthgasse 11-II, A-1090 Vienna, Austria
| | - Erik Reimhult
- BOKU University, Department of Bionanosciences, Institute of Colloid and Biointerface Science, Muthgasse 11-II, A-1090 Vienna, Austria
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4
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Ferrando N, Pino-Otín MR, Terrado E, Ballestero D, Langa E. Bioactivity of Eugenol: A Potential Antibiotic Adjuvant with Minimal Ecotoxicological Impact. Int J Mol Sci 2024; 25:7069. [PMID: 39000177 PMCID: PMC11241589 DOI: 10.3390/ijms25137069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/12/2024] [Accepted: 06/21/2024] [Indexed: 07/16/2024] Open
Abstract
Combining commercial antibiotics with adjuvants to lower their minimum inhibitory concentration (MIC) is vital in combating antimicrobial resistance. Evaluating the ecotoxicity of such compounds is crucial due to environmental and health risks. Here, eugenol was assessed as an adjuvant for 7 commercial antibiotics against 14 pathogenic bacteria in vitro, also examining its acute ecotoxicity on various soil and water organisms (microbiota, Vibrio fischeri, Daphnia magna, Eisenia foetida, and Allium cepa). Using microdilution methods, checkerboard assays, and kinetic studies, the MICs for eugenol were determined together with the nature of its combinations with antibiotics against bacteria, some unexposed to eugenol previously. The lethal dose for the non-target organisms was also determined, as well as the Average Well Color Development and the Community-Level Physiological Profiling for soil and water microbiota. Our findings indicate that eugenol significantly reduces MICs by 75 to 98%, which means that it could be a potent adjuvant. Ecotoxicological assessments showed eugenol to be less harmful to water and soil microbiota compared to studied antibiotics. While Vibrio fischeri and Daphnia magna were susceptible, Allium cepa and Eisenia foetida were minimally affected. Given that only 0.1% of eugenol is excreted by humans without metabolism, its environmental risk when used with antibiotics appears minimal.
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Affiliation(s)
- Natalia Ferrando
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario, Autovía Mudéjar, km. 299, 50830 Villanueva de Gállego, Spain; (N.F.); (M.R.P.-O.); (D.B.)
| | - María Rosa Pino-Otín
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario, Autovía Mudéjar, km. 299, 50830 Villanueva de Gállego, Spain; (N.F.); (M.R.P.-O.); (D.B.)
| | - Eva Terrado
- Facultad de Educación, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain;
| | - Diego Ballestero
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario, Autovía Mudéjar, km. 299, 50830 Villanueva de Gállego, Spain; (N.F.); (M.R.P.-O.); (D.B.)
| | - Elisa Langa
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario, Autovía Mudéjar, km. 299, 50830 Villanueva de Gállego, Spain; (N.F.); (M.R.P.-O.); (D.B.)
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5
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Bon CG, Grigg JC, Lee J, Robb CS, Caveney NA, Eltis LD, Strynadka NCJ. Structural and kinetic analysis of the monofunctional Staphylococcus aureus PBP1. J Struct Biol 2024; 216:108086. [PMID: 38527711 DOI: 10.1016/j.jsb.2024.108086] [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: 02/02/2024] [Revised: 03/13/2024] [Accepted: 03/14/2024] [Indexed: 03/27/2024]
Abstract
Staphylococcus aureus, an ESKAPE pathogen, is a major clinical concern due to its pathogenicity and manifold antimicrobial resistance mechanisms. The commonly used β-lactam antibiotics target bacterial penicillin-binding proteins (PBPs) and inhibit crosslinking of peptidoglycan strands that comprise the bacterial cell wall mesh, initiating a cascade of effects leading to bacterial cell death. S. aureus PBP1 is involved in synthesis of the bacterial cell wall during division and its presence is essential for survival of both antibiotic susceptible and resistant S. aureus strains. Here, we present X-ray crystallographic data for S. aureus PBP1 in its apo form as well as acyl-enzyme structures with distinct classes of β-lactam antibiotics representing the penicillins, carbapenems, and cephalosporins, respectively: oxacillin, ertapenem and cephalexin. Our structural data suggest that the PBP1 active site is readily accessible for substrate, with little conformational change in key structural elements required for its covalent acylation of β-lactam inhibitors. Stopped-flow kinetic analysis and gel-based competition assays support the structural observations, with even the weakest performing β-lactams still having comparatively high acylation rates and affinities for PBP1. Our structural and kinetic analysis sheds insight into the ligand-PBP interactions that drive antibiotic efficacy against these historically useful antimicrobial targets and expands on current knowledge for future drug design and treatment of S. aureus infections.
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Affiliation(s)
- Christopher G Bon
- Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Centre for Blood Research, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Jason C Grigg
- Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Microbiology and Immunology, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Jaeyong Lee
- Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Centre for Blood Research, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Craig S Robb
- Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Centre for Blood Research, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Nathanael A Caveney
- Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Centre for Blood Research, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Lindsay D Eltis
- Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Microbiology and Immunology, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Natalie C J Strynadka
- Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Centre for Blood Research, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
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Koothradan FF, Jayarani A, Sivasankar C. Synthesis of β-Lactams through Carbonylation of Diazo Compounds Followed by the [2 + 2] Cycloaddition Reaction. J Org Chem 2024; 89:4294-4308. [PMID: 36469500 DOI: 10.1021/acs.joc.2c01484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Reporting an efficient method for the synthesis of β-lactams by the carbonylation of diazo compounds, using [Co2(CO)8] to corresponding ketenes, followed by [2 + 2] cycloaddition with imines. The newly developed strategy was successfully applied to electronically and structurally diverse substrates to produce the corresponding β-lactams under mild reaction conditions. Fourier transform infrared spectroscopy was employed to monitor ketene formation and the transformation of ketene into β-lactam. All the products were fully characterized by using various analytical and spectroscopic techniques.
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Affiliation(s)
- Fathima Febin Koothradan
- Catalysis and Energy Laboratory, Department of Chemistry, Pondicherry University (A Central University), Puducherry605014, India
| | - Arumugam Jayarani
- Catalysis and Energy Laboratory, Department of Chemistry, Pondicherry University (A Central University), Puducherry605014, India
| | - Chinnappan Sivasankar
- Catalysis and Energy Laboratory, Department of Chemistry, Pondicherry University (A Central University), Puducherry605014, India
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7
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Sahoo R, Jadhav S, Nema V. Journey of technological advancements in the detection of antimicrobial resistance. J Formos Med Assoc 2024; 123:430-441. [PMID: 37598038 DOI: 10.1016/j.jfma.2023.08.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/19/2023] [Accepted: 08/07/2023] [Indexed: 08/21/2023] Open
Abstract
Increased uses rather an extensive misuse of antibiotics due to easy availability and easy access have resulted in antibiotic resistance as a global crisis. The speed of discovery of new antibiotics has slowed down recently. Therefore, there is a need to reduce the rate of increase in resistance against the presently available antibiotics, or else many infections may be left untreatable or difficult to be treated due to the high prevalence of resistance. The judicious use of broad-spectrum antibiotics can control the increase in resistance profile. Various techniques are presently being used for the detection of antibiotic resistance. Conventional phenotypic methods are preferred that are highly reliable but are much more time-consuming. The patients cannot spare more time as the infection keeps increasing. The results with genotypic methods are obtained within 24 h as compared to phenotypic methods. Hence, recent molecular methods like qPCR can be used for detection. In this review, we present an overview of various methods useful for the detection of antibiotic resistance, with emphasis on their advantages and limitations. The review also emphasizes qPCR to be the most preferred method out of all because of various advantageous factors.
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Affiliation(s)
- Rituparna Sahoo
- ICMR-National AIDS Research Institute, 73 G MIDC Bhosari, Pune, 411 026, India
| | - Sushama Jadhav
- ICMR-National AIDS Research Institute, 73 G MIDC Bhosari, Pune, 411 026, India
| | - Vijay Nema
- ICMR-National AIDS Research Institute, 73 G MIDC Bhosari, Pune, 411 026, India.
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8
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Krivovicheva V, Lyutin I, Kantin G, Dar'in D. Access to Spiro Bis-β-lactams via a Metal-Free Microwave-Assisted Wolff Rearrangement/Staudinger [2+2] Cycloaddition Cascade Involving 3-Diazotetramic Acids and Imines. J Org Chem 2024; 89:3585-3589. [PMID: 38363730 DOI: 10.1021/acs.joc.3c02494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
Herein, we report the study of the thermally promoted reaction of 3-diazotetramic acids with imines as a rapid route to a novel spiro heterocyclic scaffold, spiro bis-β-lactams (2,6-diazaspiro[3.3]heptane-1,5-diones). The transformation proceeds via metal-free microwave-assisted Wolff rearrangement of the diazo reagent followed by Staudinger [2+2] cycloaddition of the heterocyclic ketenes with Shiff bases. This methodology enables the preparation of diastereomerically pure spiro bis-β-lactams in high yields and provides an avenue for exploring new versions of the privileged β-lactam core for drug design.
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Affiliation(s)
| | - Ivan Lyutin
- Saint Petersburg State University, Saint Petersburg 199034, Russian Federation
| | - Grigory Kantin
- Saint Petersburg State University, Saint Petersburg 199034, Russian Federation
| | - Dmitry Dar'in
- Saint Petersburg State University, Saint Petersburg 199034, Russian Federation
- Saint Petersburg Research Institute of Phthisiopulmonology, Saint Petersburg 191036, Russian Federation
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9
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Perez-Bou L, Gonzalez-Martinez A, Gonzalez-Lopez J, Correa-Galeote D. Promising bioprocesses for the efficient removal of antibiotics and antibiotic-resistance genes from urban and hospital wastewaters: Potentialities of aerobic granular systems. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 342:123115. [PMID: 38086508 DOI: 10.1016/j.envpol.2023.123115] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 11/07/2023] [Accepted: 12/05/2023] [Indexed: 12/17/2023]
Abstract
The use, overuse, and improper use of antibiotics have resulted in higher levels of antibiotic-resistant bacteria (ARB) and antibiotic-resistance genes (ARGs), which have profoundly disturbed the equilibrium of the environment. Furthermore, once antibiotic agents are excreted in urine and feces, these substances often can reach wastewater treatment plants (WWTPs), in which improper treatments have been highlighted as the main reason for stronger dissemination of antibiotics, ARB, and ARGs to the receiving bodies. Hence, achieving better antibiotic removal capacities in WWTPs is proposed as an adequate approach to limit the spread of antibiotics, ARB, and ARGs into the environment. In this review, we highlight hospital wastewater (WW) as a critical hotspot for the dissemination of antibiotic resistance due to its high level of antibiotics and pathogens. Hence, monitoring the composition and structure of the bacterial communities related to hospital WW is a key factor in controlling the spread of ARGs. In addition, we discuss the advantages and drawbacks of the current biological WW treatments regarding the antibiotic-resistance phenomenon. Widely used conventional activated sludge technology has proved to be ineffective in mitigating the dissemination of ARB and ARGs to the environment. However, aerobic granular sludge (AGS) technology is a promising technology-with broad adaptability and excellent performance-that could successfully reduce antibiotics, ARB, and ARGs in the generated effluents. We also outline the main operational parameters involved in mitigating antibiotics, ARB, and ARGs in WWTPs. In this regard, WW operation under long hydraulic and solid retention times allows better removal of antibiotics, ARB, and ARGs independently of the WW technology employed. Finally, we address the current knowledge of the adsorption and degradation of antibiotics and their importance in removing ARB and ARGs. Notably, AGS can enhance the removal of antibiotics, ARB, and ARGs due to the complex microbial metabolism within the granular biomass.
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Affiliation(s)
- Lizandra Perez-Bou
- Microbiology Department, Faculty of Pharmacy, University of Granada, Granada, Andalucía, Spain; Microbiology and Environmental Technology Section, Institute of Water Research, University of Granada, Granada, Andalucía, Spain; Microbial Biotechnology Group, Microbiology and Virology Department, Faculty of Biology, University of Havana, Cuba
| | - Alejandro Gonzalez-Martinez
- Microbiology Department, Faculty of Pharmacy, University of Granada, Granada, Andalucía, Spain; Microbiology and Environmental Technology Section, Institute of Water Research, University of Granada, Granada, Andalucía, Spain
| | - Jesus Gonzalez-Lopez
- Microbiology Department, Faculty of Pharmacy, University of Granada, Granada, Andalucía, Spain; Microbiology and Environmental Technology Section, Institute of Water Research, University of Granada, Granada, Andalucía, Spain
| | - David Correa-Galeote
- Microbiology Department, Faculty of Pharmacy, University of Granada, Granada, Andalucía, Spain; Microbiology and Environmental Technology Section, Institute of Water Research, University of Granada, Granada, Andalucía, Spain.
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10
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Hasib FMY, Magouras I, St-Hilaire S, Paudel S, Kamali M, Lugsomya K, Lam HK, Elsohaby I, Butaye P, Nekouei O. Prevalence and characterization of antimicrobial-resistant Escherichia coli in chicken meat from wet markets in Hong Kong. Front Vet Sci 2024; 11:1340548. [PMID: 38288141 PMCID: PMC10822974 DOI: 10.3389/fvets.2024.1340548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 01/04/2024] [Indexed: 01/31/2024] Open
Abstract
Given the close contact between animals, animal products, and consumers in wet markets, fresh meat products are considered a potential source and disseminator of antimicrobial-resistant (AMR) bacteria near the end of the food chain. This cross-sectional study was conducted to estimate the prevalence of select AMR-E. coli in fresh chicken meat collected from wet markets in Hong Kong and to determine target genes associated with the observed resistance phenotypes. Following a stratified random sampling design, 180 fresh half-chickens were purchased from 29 wet markets across Hong Kong in 2022 and immediately processed. After incubation, selective isolation was performed for extended-spectrum β-lactamase producing (ESBL), carbapenem-resistant (CRE), and colistin-resistant (CSR) E. coli. The bacterial isolates were identified using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Disc Diffusion was used to determine the susceptibility of ESBL- and CRE-E. coli isolates. The broth microdilution method was used to determine the minimum inhibitory concentration of CSR-E. coli. Targeted resistance genes were then detected by PCR. The prevalence of ESBL-E. coli and CSR-E. coli were estimated at 88.8% (95% CI: 83.4-93.1%) and 6.7% (95% CI: 3.5-11.4%), respectively. No CRE-E. coli isolate was detected. The blaCTX-M-1 gene was the most common β-lactamase group in isolated E. coli (80%), followed by blaTEM (63.7%); no blaSHV gene was detected. Forty-five percent of the isolates had blaTEM and blaCTX-M-1 simultaneously. The mcr-1 gene was detected in all 12 CSR isolates. Of 180 meat samples, 59 were from Mainland China, and 121 were locally sourced. There was no statistically significant difference in the prevalence of ESBL- and CSR-E. coli between the two sources. Our findings can be used to inform food safety risk assessments and set the stage for adopting targeted control and mitigation measures tailored to the local wet markets.
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Affiliation(s)
- F. M. Yasir Hasib
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
- Department of Pathology and Parasitology, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Chittagong, Bangladesh
| | - Ioannis Magouras
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
- Veterinary Public Health Institute, Department of Clinical Research and Veterinary Public Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Sophie St-Hilaire
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
| | - Surya Paudel
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
| | - Maedeh Kamali
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
| | - Kittitat Lugsomya
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
| | - Hoi Kiu Lam
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
| | - Ibrahim Elsohaby
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
| | - Patrick Butaye
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Omid Nekouei
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
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11
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Halawa EM, Fadel M, Al-Rabia MW, Behairy A, Nouh NA, Abdo M, Olga R, Fericean L, Atwa AM, El-Nablaway M, Abdeen A. Antibiotic action and resistance: updated review of mechanisms, spread, influencing factors, and alternative approaches for combating resistance. Front Pharmacol 2024; 14:1305294. [PMID: 38283841 PMCID: PMC10820715 DOI: 10.3389/fphar.2023.1305294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Accepted: 12/18/2023] [Indexed: 01/30/2024] Open
Abstract
Antibiotics represent a frequently employed therapeutic modality for the management of bacterial infections across diverse domains, including human health, agriculture, livestock breeding, and fish farming. The efficacy of antibiotics relies on four distinct mechanisms of action, which are discussed in detail in this review, along with accompanying diagrammatic illustrations. Despite their effectiveness, antibiotic resistance has emerged as a significant challenge to treating bacterial infections. Bacteria have developed defense mechanisms against antibiotics, rendering them ineffective. This review delves into the specific mechanisms that bacteria have developed to resist antibiotics, with the help of diagrammatic illustrations. Antibiotic resistance can spread among bacteria through various routes, resulting in previously susceptible bacteria becoming antibiotic-resistant. Multiple factors contribute to the worsening crisis of antibiotic resistance, including human misuse of antibiotics. This review also emphasizes alternative solutions proposed to mitigate the exacerbation of antibiotic resistance.
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Affiliation(s)
- Esraa M. Halawa
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza, Egypt
| | - Mohamed Fadel
- Department of Microbial Chemistry, Biotechnology Research Institute, National Research Centre, Dokki, Cairo, Egypt
| | - Mohammed W. Al-Rabia
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Clinical Laboratories-Diagnostic Immunology Division, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Ali Behairy
- Department of Pharmacology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Nehal A. Nouh
- Department of Microbiology, Medicine Program, Batterjee Medical College, Jeddah, Saudi Arabia
- Inpatient Pharmacy, Mansoura University Hospitals, Mansoura, Egypt
| | - Mohamed Abdo
- Department of Animal Histology and Anatomy, School of Veterinary Medicine, Badr University in Cairo (BUC), Badr City, Egypt
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Egypt
| | - Rada Olga
- Department of Biology and Plant Protection, Faculty of Agriculture, University of Life Sciences “King Michael I” from Timișoara, Timișoara, Romania
| | - Liana Fericean
- Department of Biology and Plant Protection, Faculty of Agriculture, University of Life Sciences “King Michael I” from Timișoara, Timișoara, Romania
| | - Ahmed M. Atwa
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Egyptian Russian University, Cairo, Egypt
| | - Mohammad El-Nablaway
- Department of Medical Biochemistry, Faculty of Medicine, Mansoura University, Mansoura, Egypt
- Department of Basic Medical Sciences, College of Medicine, AlMaarefa University, Riyadh, Saudi Arabia
| | - Ahmed Abdeen
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Toukh, Egypt
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12
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Ferrando N, Pino-Otín MR, Ballestero D, Lorca G, Terrado EM, Langa E. Enhancing Commercial Antibiotics with Trans-Cinnamaldehyde in Gram-Positive and Gram-Negative Bacteria: An In Vitro Approach. PLANTS (BASEL, SWITZERLAND) 2024; 13:192. [PMID: 38256746 PMCID: PMC10820649 DOI: 10.3390/plants13020192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/21/2023] [Accepted: 01/05/2024] [Indexed: 01/24/2024]
Abstract
One strategy to mitigate the emergence of bacterial resistance involves reducing antibiotic doses by combining them with natural products, such as trans-cinnamaldehyde (CIN). The objective of this research was to identify in vitro combinations (CIN + commercial antibiotic (ABX)) that decrease the minimum inhibitory concentration (MIC) of seven antibiotics against 14 different Gram-positive and Gram-negative pathogenic bacteria, most of them classified as ESKAPE. MIC values were measured for all compounds using the broth microdilution method. The effect of the combinations on these microorganisms was analyzed through the checkboard assay to determine the type of activity (synergy, antagonism, or addition). This analysis was complemented with a kinetic study of the synergistic combinations. Fifteen synergistic combinations were characterized for nine of the tested bacteria. CIN demonstrated effectiveness in reducing the MIC of chloramphenicol, streptomycin, amoxicillin, and erythromycin (94-98%) when tested on Serratia marcescens, Staphylococcus aureus, Pasteurella aerogenes, and Salmonella enterica, respectively. The kinetic study revealed that when the substances were tested alone at the MIC concentration observed in the synergistic combination, bacterial growth was not inhibited. However, when CIN and the ABX, for which synergy was observed, were tested simultaneously in combination at these same concentrations, the bacterial growth inhibition was complete. This demonstrates the highly potent in vitro synergistic activity of CIN when combined with commercial ABXs. This finding could be particularly beneficial in livestock farming, as this sector witnesses the highest quantities of antimicrobial usage, contributing significantly to antimicrobial resistance issues. Further research focused on this natural compound is thus warranted for this reason.
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Affiliation(s)
- Natalia Ferrando
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario Villanueva de Gállego, Autovía A-23 Zaragoza-Huesca, km. 510, 50830 Villanueva de Gállego, Spain; (N.F.); (M.R.P.-O.); (D.B.); (G.L.)
| | - María Rosa Pino-Otín
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario Villanueva de Gállego, Autovía A-23 Zaragoza-Huesca, km. 510, 50830 Villanueva de Gállego, Spain; (N.F.); (M.R.P.-O.); (D.B.); (G.L.)
| | - Diego Ballestero
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario Villanueva de Gállego, Autovía A-23 Zaragoza-Huesca, km. 510, 50830 Villanueva de Gállego, Spain; (N.F.); (M.R.P.-O.); (D.B.); (G.L.)
| | - Guillermo Lorca
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario Villanueva de Gállego, Autovía A-23 Zaragoza-Huesca, km. 510, 50830 Villanueva de Gállego, Spain; (N.F.); (M.R.P.-O.); (D.B.); (G.L.)
| | - Eva María Terrado
- Departamento de Didácticas Específicas, Facultad de Educación, Universisad de Zaragoza, Calle Pedro Cerbuna 12, 50009 Zaragoza, Spain;
| | - Elisa Langa
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario Villanueva de Gállego, Autovía A-23 Zaragoza-Huesca, km. 510, 50830 Villanueva de Gállego, Spain; (N.F.); (M.R.P.-O.); (D.B.); (G.L.)
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13
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Khurana P, Pulicharla R, Brar SK. Imipenem-metal complexes: Computational analysis and toxicity studies with wastewater model microorganisms. ENVIRONMENTAL RESEARCH 2023; 239:117275. [PMID: 37827363 DOI: 10.1016/j.envres.2023.117275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/24/2023] [Accepted: 09/28/2023] [Indexed: 10/14/2023]
Abstract
The occurrence of antibiotic residues in diverse water sources has long been acknowledged as a potential health concern due to the emergence and spread of antibiotic-resistant bacteria and genes. However, there have been limited studies into the presence of antibiotic-metal complexes (AMCs) in real-time wastewater matrices, and their impact on wastewater microbial communities. The present work, in this regard, investigated the stability of Imipenem-metal complexes (Me = Mg (II), Ca (II), Fe (II), Cu (II), and Al (III)) with computational studies, stoichiometry with potentiometric measurements, and their antibacterial activity towards wastewater model microorganisms- Bacillus subtilis (B. subtilis) and Escherichia coli (E. Coli) by Colony Forming Unit (CFU) method. The lower energy of Imipenem-metal complexes than the parent antibiotic- Imipenem, during energy optimization using density functional (DFT) methods, revealed that metal interactions of Imipenem stabilize the drug by minimizing its energy. Further, CFU studies indicated that these complexes display higher antimicrobial activity than parent antibiotics. The electron delocalization over the entire chelated system (AMCs) reduces polarity and increases the lipophilicity of the complexes, thereby facilitating stronger interaction between AMCs and the bacterial cell membrane. Results indicate increased antibacterial activity of Imipenem-metal complexes for both E. coli and B. subtilis. The antibacterial activity, was however, more pronounced in B. subtilis, with >97% growth inhibition for metal complexes of Imipenem (at a Minimum Inhibitory Concentration of 20 nM or 6 ppb (i.e., MIC90)), for both the stoichiometric ratios (metal to ligand) ratios (M: L 1: 1 and 2: 1). All around, with increased stability and toxicity, AMCs are emerging as contaminants of concern and demand immediate attention to devise methods for their removal.
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Affiliation(s)
- Pratishtha Khurana
- Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto, Ontario M3J 1P3, Canada
| | - Rama Pulicharla
- Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto, Ontario M3J 1P3, Canada
| | - Satinder Kaur Brar
- Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto, Ontario M3J 1P3, Canada.
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14
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Feng C, Wu Y. Copper-Catalyzed Bifunctionalization/Annulation of Unactivated Alkene with Alkyl Bromides. J Org Chem 2023; 88:15249-15255. [PMID: 37862612 DOI: 10.1021/acs.joc.3c01746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
β-Lactam is a ubiquitous scaffold in bioactive compounds and pharmaceuticals. Herein, we disclose a streamlined method for the construction of β-lactams starting from unactivated alkenes and alkyl bromides via a Cu-catalyzed inter-/intramolecular carboamidation. This reaction proceeded smoothly under mild reaction conditions and exhibited a broad substrate scope and various functional groups. This protocol is not only compatible with 1, 2, and 3° alkyl bromides but also suitable for α-bromo nitrile as well as various benzyl bromides. The mechanism exploration indicated that sequential radical addition/reductive elimination was involved.
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Affiliation(s)
- Cancan Feng
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
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15
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Goodyear MC, Seidel L, Krieger JR, Geddes-McAlister J, Levesque RC, Khursigara CM. Quantitative proteomics reveals unique responses to antimicrobial treatments in clinical Pseudomonas aeruginosa isolates. mSystems 2023; 8:e0049123. [PMID: 37623324 PMCID: PMC10654054 DOI: 10.1128/msystems.00491-23] [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: 05/24/2023] [Accepted: 07/05/2023] [Indexed: 08/26/2023] Open
Abstract
IMPORTANCE Pseudomonas aeruginosa is an important pathogen often associated with hospital-acquired infections and chronic lung infections in people with cystic fibrosis. P. aeruginosa possesses a wide array of intrinsic and adaptive mechanisms of antibiotic resistance, and the regulation of these mechanisms is complex. Label-free quantitative proteomics is a powerful tool to compare susceptible and resistant strains of bacteria and their responses to antibiotic treatments. Here we compare the proteomes of three isolates of P. aeruginosa with different antibiotic resistance profiles in response to five challenge conditions. We uncover unique and shared proteome changes for the widely used laboratory strain PAO1 and two isolates of the Liverpool epidemic strain of P. aeruginosa, LESlike1 and LESB58. Our data set provides insight into antibiotic resistance in clinically relevant Pseudomonas isolates and highlights proteins, including those with uncharacterized functions, which can be further investigated for their role in adaptive responses to antibiotic treatments.
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Affiliation(s)
- Mara C. Goodyear
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada
| | - Laura Seidel
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada
| | | | | | - Roger C. Levesque
- Institut de biologie integrative et des systems (IBIS), Département de microbiologie-infectiologie et d'immunologie, Université Laval, Laval, Quebec, Canada
| | - Cezar M. Khursigara
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada
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16
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Wang JM, Zhao Y, Li WP, Kong XJ, Yao CS, Zhang K. Synthesis of tetracyclic dibenzo[ b, f][1,4]oxazepine-fused β-lactams via visible-light-induced Staudinger annulation. Org Biomol Chem 2023; 21:7106-7114. [PMID: 37610712 DOI: 10.1039/d3ob01078c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
An efficient visible-light-induced Staudinger [2 + 2] annulation reaction between α-diazo ketones and dibenzo[b,f][1,4]oxazepine/thiazepine-imines under catalyst-free conditions has been developed. This protocol provides a facile method to synthesize tetracyclic dibenzo[b,f][1,4]oxazepine/thiazepine-fused β-lactams bearing a quaternary carbon center with a broad substrate scope and high efficiency (37 examples, up to >99% yield).
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Affiliation(s)
- Jiao-Mei Wang
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu 221018, P. R China
| | - Yu Zhao
- College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shanxi 716000, P. R. China
| | - Wen-Ping Li
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China.
| | - Xiang-Jun Kong
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu 221018, P. R China
| | - Chang-Sheng Yao
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China.
| | - Kai Zhang
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China.
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17
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Shi M, Niu G, Zhang T, Xu A, Zheng R, Yusuf A, Shi T, Hu W, Qian Y. Silver-catalyzed pyrazole migration and cycloaddition reaction of diazo pyrazoleamides with ketimines. Chem Commun (Camb) 2023; 59:10311-10314. [PMID: 37548265 DOI: 10.1039/d3cc03253a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
A novel pyrazole migration and cycloaddition process is well developed via AgOTf-catalyzed annulation reactions of α-diazo pyrazoleamides with ketimines. This protocol discloses efficient access to synthesize a series of spirooxindole-based β-lactams in good to excellent yields and the diastereoselectivity is switchable by tuning the substituents on the α-diazo pyrazoleamides.
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Affiliation(s)
- Maoqing Shi
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Gejun Niu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Tianyuan Zhang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Aimin Xu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Rimei Zheng
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Abdulla Yusuf
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
- College of Chemistry and Environmental Science, Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, Kashi University, Kashi 844000, China
| | - Taoda Shi
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Wenhao Hu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Yu Qian
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
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18
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Rosales-Hurtado M, Sannio F, Lari L, Verdirosa F, Feller G, Carretero E, Vo-Hoang Y, Licznar-Fajardo P, Docquier JD, Gavara L. Zidovudine-β-Lactam Pronucleoside Strategy for Selective Delivery into Gram-Negative Bacteria Triggered by β-Lactamases. ACS Infect Dis 2023; 9:1546-1557. [PMID: 37439673 DOI: 10.1021/acsinfecdis.3c00110] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Addressing antibacterial resistance is a major concern of the modern world. The development of new approaches to meet this deadly threat is a critical priority. In this article, we investigate a new approach to negate bacterial resistance: exploit the β-lactam bond cleavage by β-lactamases to selectively trigger antibacterial prodrugs into the bacterial periplasm. Indeed, multidrug-resistant Gram-negative pathogens commonly produce several β-lactamases that are able to inactivate β-lactam antibiotics, our most reliable and widely used therapeutic option. The chemical structure of these prodrugs is based on a monobactam promoiety, covalently attached to the active antibacterial substance, zidovudine (AZT). We describe the synthesis of 10 prodrug analogues (5a-h) in four to nine steps and their biological activity. Selective enzymatic activation by a panel of β-lactamases is demonstrated, and subsequent structure-activity relationships are discussed. The best compounds are further evaluated for their activity on both laboratory strains and clinical isolates, preliminary stability, and toxicity.
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Affiliation(s)
- Miyanou Rosales-Hurtado
- Institut des Biomolécules Max Mousseron, Univ Montpellier, CNRS, ENSCM, 34293 Montpellier, France
| | - Filomena Sannio
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Lindita Lari
- Institut des Biomolécules Max Mousseron, Univ Montpellier, CNRS, ENSCM, 34293 Montpellier, France
| | - Federica Verdirosa
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Georges Feller
- Laboratoire de Biochimie, Centre d'Ingénierie des Protéines-InBioS, Université de Liège, B-4000 Liège, Belgium
| | - Elodie Carretero
- Institut des Biomolécules Max Mousseron, Univ Montpellier, CNRS, ENSCM, 34293 Montpellier, France
| | - Yen Vo-Hoang
- HSM, Univ Montpellier, CNRS, IRD, CHU Montpellier, 34090 Montpellier, France
| | | | - Jean-Denis Docquier
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
- Laboratoire de Bactériologie Moléculaire, Centre d'Ingénierie des Protéines-InBioS, Université de Liège, B-4000 Liège, Belgium
| | - Laurent Gavara
- Institut des Biomolécules Max Mousseron, Univ Montpellier, CNRS, ENSCM, 34293 Montpellier, France
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19
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Dordevic D, Capikova J, Dordevic S, Tremlová B, Gajdács M, Kushkevych I. Sulfur content in foods and beverages and its role in human and animal metabolism: A scoping review of recent studies. Heliyon 2023; 9:e15452. [PMID: 37123936 PMCID: PMC10130226 DOI: 10.1016/j.heliyon.2023.e15452] [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: 02/08/2023] [Revised: 03/24/2023] [Accepted: 04/10/2023] [Indexed: 05/02/2023] Open
Abstract
Sulfur is a vital element that all living things require, being a component of proteins and other bio-organic substances. The various kinds and varieties of microbes in nature allow for the transformation of this element. It also should be emphasized that volatile sulfur compounds are typically present in food in trace amounts. Life cannot exist without sulfur, yet it also poses a potential health risk. The colon's sulfur metabolism, which is managed by eukaryotic cells, is much better understood than the S metabolism in gastrointestinal bacteria. Numerous additional microbial processes are anticipated to have an impact on the content and availability of sulfated compounds, as well as intestinal S metabolism. Hydrogen sulfide is the sulfur derivative that has attracted the most attention in relation to colonic health, but it is still unclear whether it is beneficial or harmful. Several lines of evidence suggest that sulfate-reducing bacteria or exogenous hydrogen sulfide may be the root cause of intestinal ailments, including inflammatory bowel diseases and colon cancer. Taurine serves a variety of biological and physiological purposes, including roles in inflammation and protection, additionally, low levels of taurine can be found in bodily fluids, and taurine is the primary sulfur component present in muscle tissue (serum and urine). The aim of this scoping review was to compile data from the most pertinent scientific works about S compounds' existence in food and their metabolic processes. The importance of S compounds in various food products and how these compounds can impact metabolic processes are both stressed in this paper.
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Affiliation(s)
- Dani Dordevic
- Department of Plant Origin Food Sciences, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
| | - Jana Capikova
- Department of Plant Origin Food Sciences, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
| | - Simona Dordevic
- Department of Plant Origin Food Sciences, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
| | - Bohuslava Tremlová
- Department of Plant Origin Food Sciences, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
| | - Márió Gajdács
- Department of Oral Biology and Experimental Dental Research, Faculty of Dentistry, University of Szeged, Tisza Lajos krt. 64-66, 6720, Szeged, Hungary
| | - Ivan Kushkevych
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 753/5, 62500, Brno, Czech Republic
- Corresponding author.
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20
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Bagińska N, Harhala MA, Cieślik M, Orwat F, Weber-Dąbrowska B, Dąbrowska K, Górski A, Jończyk-Matysiak E. Biological Properties of 12 Newly Isolated Acinetobacter baumannii-Specific Bacteriophages. Viruses 2023; 15:231. [PMID: 36680270 PMCID: PMC9866556 DOI: 10.3390/v15010231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
Infections with the opportunistic Gram-negative bacterium Acinetobacter baumannii pose a serious threat today, which is aggravated by the growing problem of multi-drug resistance among bacteria, caused by the overuse of antibiotics. Treatment of infections caused by antibiotic-resistant A. baumannii strains with the use of phage therapy is not only a promising alternative, but sometimes the only option. Therefore, phages specific for clinical multi-drug resistant A. baumannii were searched for in environmental, municipal, and hospital wastewater samples collected from different locations in Poland. The conducted research allowed us to determine the biological properties and morphology of the tested phages. As a result of our research, 12 phages specific for A. baumannii, 11 of which turned out to be temperate and only one lytic, were isolated. Their lytic spectra ranged from 11 to 75%. The plaques formed by most phages were small and transparent, while one of them formed relatively large plaques with a clearly marked 'halo' effect. Based on Transmission Electron Microscopy (TEM), most of our phages have been classified as siphoviruses (only one phage was classified as a podovirus). All phages have icosahedral capsid symmetry, and 11 of them have a long tail. Optimal multiplicity of infections (MOIs) and the adsorption rate were also determined. MOI values varied depending on the phage-from 0.001 to 10. Based on similarities to known bacteriophages, our A. baumannii-specific phages have been proposed to belong to the Beijerinckvirinae and Junivirinae subfamilies. This study provides an additional tool in the fight against this important pathogen and may boost the interest in phage therapy as an alternative and supplement to the current antibiotics.
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Affiliation(s)
- Natalia Bagińska
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
| | - Marek Adam Harhala
- Laboratory of Phage Molecular Biology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
| | - Martyna Cieślik
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
| | - Filip Orwat
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
| | - Beata Weber-Dąbrowska
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
- Phage Therapy Unit, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
| | - Krystyna Dąbrowska
- Laboratory of Phage Molecular Biology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
| | - Andrzej Górski
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
- Phage Therapy Unit, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
- Infant Jesus Hospital, The Medical University of Warsaw, 02-006 Warsaw, Poland
| | - Ewa Jończyk-Matysiak
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
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21
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Khan A, Jabeen H, Ahmad T, Rehman NU, Khan SS, Shareef H, Sarwar R, Yahya S, Hussain N, Uddin J, Hussain J, Al-Harrasi A. Comparative efficacy of cephradine-loaded silver and gold nanoparticles against resistant human pathogens. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2022; 50:312-321. [DOI: 10.1080/21691401.2022.2144340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Ajmal Khan
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Sultanate of Oman
| | - Humera Jabeen
- Department of Chemistry, Sardar Bahadur Khan Women’s University, Quetta, Pakistan
| | - Touqeer Ahmad
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Sultanate of Oman
| | - Najeeb Ur Rehman
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Sultanate of Oman
| | - Saleha Suleman Khan
- Department of Chemistry, Sardar Bahadur Khan Women’s University, Quetta, Pakistan
| | - Huma Shareef
- Department of Pharmacognosy, Faculty of Pharmacy, Jinnah Sindh Medical University, Karachi, Pakistan
| | - Rizwana Sarwar
- Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad, Pakistan
| | - Saira Yahya
- Department of Biosciences, Shaheed Zulfikar Ali Bhutto Institute of Science and Technology, Karachi, Pakistan
| | - Nusrat Hussain
- Department of Chemistry, University of Baltistan Skardu, Skardu, Pakistan
| | - Jalal Uddin
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Javid Hussain
- Department of Biological Sciences and Chemistry, University of Nizwa, Nizwa, Sultanate of Oman
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Sultanate of Oman
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22
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Legru A, Verdirosa F, Vo-Hoang Y, Tassone G, Vascon F, Thomas CA, Sannio F, Corsica G, Benvenuti M, Feller G, Coulon R, Marcoccia F, Devente SR, Bouajila E, Piveteau C, Leroux F, Deprez-Poulain R, Deprez B, Licznar-Fajardo P, Crowder MW, Cendron L, Pozzi C, Mangani S, Docquier JD, Hernandez JF, Gavara L. Optimization of 1,2,4-Triazole-3-thiones toward Broad-Spectrum Metallo-β-lactamase Inhibitors Showing Potent Synergistic Activity on VIM- and NDM-1-Producing Clinical Isolates. J Med Chem 2022; 65:16392-16419. [PMID: 36450011 DOI: 10.1021/acs.jmedchem.2c01257] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Metallo-β-lactamases (MBLs) contribute to the resistance of Gram-negative bacteria to carbapenems, last-resort antibiotics at hospital, and MBL inhibitors are urgently needed to preserve these important antibacterial drugs. Here, we describe a series of 1,2,4-triazole-3-thione-based inhibitors displaying an α-amino acid substituent, which amine was mono- or disubstituted by (hetero)aryl groups. Compounds disubstituted by certain nitrogen-containing heterocycles showed submicromolar activities against VIM-type enzymes and strong NDM-1 inhibition (Ki = 10-30 nM). Equilibrium dialysis, native mass spectrometry, isothermal calorimetry (ITC), and X-ray crystallography showed that the compounds inhibited both VIM-2 and NDM-1 at least partially by stripping the catalytic zinc ions. These inhibitors also displayed a very potent synergistic activity with meropenem (16- to 1000-fold minimum inhibitory concentration (MIC) reduction) against VIM-type- and NDM-1-producing ultraresistant clinical isolates, including Enterobacterales and Pseudomonas aeruginosa. Furthermore, selected compounds exhibited no or moderate toxicity toward HeLa cells, favorable absorption, distribution, metabolism, excretion (ADME) properties, and no or modest inhibition of several mammalian metalloenzymes.
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Affiliation(s)
- Alice Legru
- IBMM, CNRS, Univ Montpellier, ENSCM, 34000 Montpellier, France
| | - Federica Verdirosa
- Dipartimento di Biotecnologie Mediche, Università di Siena, 53100 Siena, Italy
| | - Yen Vo-Hoang
- IBMM, CNRS, Univ Montpellier, ENSCM, 34000 Montpellier, France
| | - Giusy Tassone
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università di Siena, 53100 Siena, Italy
| | - Filippo Vascon
- Laboratory of Structural Biology, Department of Biology, University of Padua, 35121 Padova, Italy
| | - Caitlyn A Thomas
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Filomena Sannio
- Dipartimento di Biotecnologie Mediche, Università di Siena, 53100 Siena, Italy
| | - Giuseppina Corsica
- Dipartimento di Biotecnologie Mediche, Università di Siena, 53100 Siena, Italy
| | - Manuela Benvenuti
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università di Siena, 53100 Siena, Italy
| | - Georges Feller
- Laboratoire de Biochimie, Centre d'Ingénierie des Protéines-InBioS, Université de Liège, Allée du 6 août B6, Sart-Tilman, B-4000 Liège, Belgium
| | - Rémi Coulon
- IBMM, CNRS, Univ Montpellier, ENSCM, 34000 Montpellier, France
| | - Francesca Marcoccia
- Dipartimento di Biotecnologie Mediche, Università di Siena, 53100 Siena, Italy
| | | | | | - Catherine Piveteau
- Drugs and Molecules for Living System, U1177, Inserm, Université de Lille, Faculté de Pharmacie, 59006 Lille, France
| | - Florence Leroux
- Drugs and Molecules for Living System, U1177, Inserm, Université de Lille, Faculté de Pharmacie, 59006 Lille, France
| | - Rebecca Deprez-Poulain
- Drugs and Molecules for Living System, U1177, Inserm, Université de Lille, Faculté de Pharmacie, 59006 Lille, France
| | - Benoît Deprez
- Drugs and Molecules for Living System, U1177, Inserm, Université de Lille, Faculté de Pharmacie, 59006 Lille, France
| | - Patricia Licznar-Fajardo
- HydroSciences Montpellier, UMR5151, Univ Montpellier, CNRS, IRD, CHU Montpellier, 34000 Montpellier, France
| | - Michael W Crowder
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Laura Cendron
- Laboratory of Structural Biology, Department of Biology, University of Padua, 35121 Padova, Italy
| | - Cecilia Pozzi
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università di Siena, 53100 Siena, Italy
| | - Stefano Mangani
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università di Siena, 53100 Siena, Italy
| | - Jean-Denis Docquier
- Dipartimento di Biotecnologie Mediche, Università di Siena, 53100 Siena, Italy.,Centre d'Ingénierie des Protéines-InBioS, Université de Liège, B-4000 Liège, Belgium
| | | | - Laurent Gavara
- IBMM, CNRS, Univ Montpellier, ENSCM, 34000 Montpellier, France
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23
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Gehlot P, P H. Computational and data mining studies to understand the distribution and dynamics of Temoneria (TEM) β-lactamase and their interaction with β-lactam and β-lactamase inhibitors. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 314:120289. [PMID: 36180000 DOI: 10.1016/j.envpol.2022.120289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 09/07/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
β-lactams are large group of antibiotics widely used to suppress the bacterial growth by inhibiting cell wall synthesis. Bacterial resistance against β-lactam antibiotics is primarily mediated through the production of Temoneria (TEM) β-lactamase (BLs), with almost 474 variants identified in Lactamase Engineering Database (LacED). The present study aims to develop a model to track the evolution of TEM BLs and their interactions with β-lactam and BLs inhibitors through data mining and computational approaches. Further, the model will be used to predict the effective combinations of β-lactam and BLs inhibitors to treat the bacterial infection harbouring emerging variants of β-lactamase. The molecular docking study results demonstrated that most TEM mutants recorded the least binding energy to penicillin and cephalosporin (I/II/III/IV/V generations) class of antibiotics. On the contrary, the same mutants recorded higher binding energy to carbapenem and Monobactam class of antibiotics. Among the BLs inhibitors, tazobactam recorded the least binding energy against most of the TEM mutants, indicating that it can lower the catalytic activity of TEM BLs, thereby potentiating antibiotic action. Similarly, data mining work has assisted us in creating a database of TEM mutants that has comprehensive data on mutations, bacterial diversity, Km, MIC, and IRT types. It has been noted that earlier released antibiotics like amoxicillin and ampicillin had lower Km and higher MIC values, which indicates the prevalence of bacterial resistance. By analysing the differential binding energy (ΔBE) of the selected TEM mutants against β-lactam and BLs inhibitors, the most effective combination of β-lactam (carbapenem and monobactam class of antibiotics) and BLs inhibitors (tazobactam) was identified, to cure bacterial diseases/infections and to prevent similar antibiotic resistance outbreaks. Therefore, our study opens a new avenue in developing strategies to manage antibiotic resistance in bacteria.
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Affiliation(s)
- Priyanka Gehlot
- Environmental Biotechnology Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Hariprasad P
- Environmental Biotechnology Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
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24
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Substituted phenethylamine-based β-lactam derivatives: Antimicrobial, anticancer, and β-lactamase inhibitory properties. Bioorg Chem 2022; 129:106212. [DOI: 10.1016/j.bioorg.2022.106212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/21/2022] [Accepted: 10/13/2022] [Indexed: 11/19/2022]
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25
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Yang X, Wang Z, Liu M, Yu X, Zhong Y, Wang F, Xu Y. Cefazolin and imipenem enhance AmpC expression and resistance in NagZ-dependent manner in Enterobacter cloacae complex. BMC Microbiol 2022; 22:284. [PMID: 36443681 PMCID: PMC9706910 DOI: 10.1186/s12866-022-02707-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 11/15/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Enterobacter cloacae complex (ECC) is a common opportunistic pathogen and is responsible for causing various infections in humans. Owing to its inducible chromosomal AmpC β-lactamase (AmpC), ECC is inherently resistant to the 1st- and 2nd- generation cephalosporins. However, whether β-lactams antibiotics enhance ECC resistance remains unclear. RESULTS In this study, we found that subinhibitory concentrations (SICs) of cefazolin (CFZ) and imipenem (IMP) can advance the expression of AmpC and enhance its resistance towards β-lactams through NagZ in Enterobacter cloacae (EC). Further, AmpC manifested a substantial upregulation in EC in response to SICs of CFZ and IMP. In nagZ knockout EC (ΔnagZ), the resistance to β-lactam antibiotics was rather weakened and the effect of CFZ and IMP on AmpC induction was completely abrogated. NagZ ectopic expression can rescue the induction effects of CFZ and IMP on AmpC and increase ΔnagZ resistance. More importantly, CFZ and IMP have the potential to induce the expression of AmpR's target genes in a NagZ-dependent manner. CONCLUSIONS Our findings suggest that NagZ is a critical determinant for CFZ and IMP to promote AmpC expression and resistance and that CFZ and IMP should be used with caution since they may aggravate ECC resistance. At the same time, this study further improves our understanding of resistance mechanisms in ECC.
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Affiliation(s)
- Xianggui Yang
- grid.414880.1Department of Laboratory Medicine, Clinical Medical College and the First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan China
| | - Zhenguo Wang
- grid.414880.1Department of Stomatology, Clinical Medical College and the First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan China
| | - Mingquan Liu
- grid.414880.1Department of Laboratory Medicine, Clinical Medical College and the First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan China
| | - Xuejing Yu
- grid.267313.20000 0000 9482 7121Department of Internal Medicine, Division of Cardiology, University of Texas Southwestern Medical Center, Dallas, TX USA
| | - Yuanxiu Zhong
- grid.413856.d0000 0004 1799 3643Department of Biotechnology, Chengdu Medical College, Chengdu, Sichuan China
| | - Fuying Wang
- grid.413856.d0000 0004 1799 3643Department of Biotechnology, Chengdu Medical College, Chengdu, Sichuan China
| | - Ying Xu
- grid.414880.1Department of Laboratory Medicine, Clinical Medical College and the First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan China
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26
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Diaba F, Sandor AG, Morán MDC. Cytotoxic Assessment of 3,3-Dichloro-β-Lactams Prepared through Microwave-Assisted Benzylic C-H Activation from Benzyl-Tethered Trichloroacetamides Catalyzed by RuCl2(PPh3)3. Molecules 2022; 27:molecules27185975. [PMID: 36144721 PMCID: PMC9500805 DOI: 10.3390/molecules27185975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/02/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022] Open
Abstract
Natural and synthetic β-lactam derivatives constitute an interesting class of compounds due to their diverse biological activity. Mostly used as antibiotics, they were also found to have antitubercular, anticancer and antidiabetic activities, among others. In this investigation, six new 3,3-dichloro-β-lactams prepared in a previous work were evaluated for their hemolytic and cytotoxic properties. The results showed that the proposed compounds have non-hemolytic properties and exhibited an interesting cytotoxic activity toward squamous cell carcinoma (A431 cell line), which was highly dependent on the structure and concentration of these β-lactams. Among the molecules tested, 2b was the most cytotoxic, with the lowest IC50 values (30–47 µg/mL) and a promising selectivity against the tumor cells compared with non-tumoral cells.
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Affiliation(s)
- Faïza Diaba
- Laboratori de Química Orgánica, Facultat de Farmàcia i Ciències de l’Alimentació, IBUB, Universitat de Barcelona, Avda. Joan XXIII 27-31, 08028 Barcelona, Spain
- Correspondence: ; Tel.: +34-934035849
| | - Alexandra G. Sandor
- Laboratori de Química Orgánica, Facultat de Farmàcia i Ciències de l’Alimentació, IBUB, Universitat de Barcelona, Avda. Joan XXIII 27-31, 08028 Barcelona, Spain
| | - María del Carmen Morán
- Departament de Bioquímica i Fisiologia-Seccio de Fisiologia, Facultat de Farmàcia i Ciències de l’Alimentaciò, Universitat de Barcelona, Avda. Joan XXIII 27-31, 08028 Barcelona, Spain
- Institut de Nanociència i Nanotecnologia—IN2UB, Universitat de Barcelona, Avda. Diagonal, 645, 08028 Barcelona, Spain
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27
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Degradation of Antibiotics via UV-Activated Peroxodisulfate or Peroxymonosulfate: A Review. Catalysts 2022. [DOI: 10.3390/catal12091025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The ultraviolet (UV)/H2O2, UV/O3, UV/peroxodisulfate (PDS) and UV/peroxymonosulfate (PMS) methods are called UV-based advanced oxidation processes. In the UV/H2O2 and UV/O3 processes, the free radicals generated are hydroxyl radicals (•OH), while in the UV/PDS and UV/PMS processes, sulfate radicals (SO4•−) predominate, accompanied by •OH. SO4•− are considered to be more advantageous than •OH in degrading organic substances, so the researches on activation of PDS and PMS have become a hot spot in recent years. Especially the utilization of UV-activated PDS and PMS in removing antibiotics in water has received much attention. Some influencing factors and mechanisms are constantly investigated and discussed in the UV/PDS and UV/PMS systems toward antibiotics degradation. However, a systematic review about UV/PDS and UV/PMS in eliminating antibiotics is lacking up to now. Therefore, this review is intended to present the properties of UV sources, antibiotics, and PDS (PMS), to discuss the application of UV/PDS (PMS) in degrading antibiotics from the aspects of effect, influencing factors and mechanism, and to analyze and propose future research directions.
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28
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Akhmouch AA, Hriouech S, Mzabi A, Tanghort M, Chefchaou H, Remmal A, Chami N. Synergistic Action of AMX Associated with 1,8-Cineole and Its Effect on the ESBL Enzymatic Resistance Mechanism. Antibiotics (Basel) 2022; 11:antibiotics11081002. [PMID: 35892393 PMCID: PMC9331605 DOI: 10.3390/antibiotics11081002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/06/2022] [Accepted: 07/11/2022] [Indexed: 02/05/2023] Open
Abstract
The purpose of the present study is twofold. First, it aims to evaluate the synergistic action of the ß-lactam antibiotic; AMX is associated with 1,8-cineole on six clinical isolates of ESBL-producing Escherichia coli and Klebsiella pneumoniae strains. Second, it aims to determine the effect this association has on the ESBL enzymatic resistance mechanism. The synergistic action of AMX/1,8-cineole was evaluated using partial inhibitory concentrations (PIC), determined by a microplate, a checkerboard and time-kill assays. The effect of AMX/1,8-cineole associations on the ESBL enzymatic resistance mechanism was evaluated using a new optimized enzymatic assay. This assay was based on the determination of the AMX antibacterial activity when combined with 1,8-cineole (at subinhibitory concentrations) in the presence or absence of the ß-lactamase enzyme toward a sensitive E. coli strain. The results of both checkerboard and time-kill assays showed a strong synergistic action between AMX and 1,8-cineole. The results of the enzymatic assay showed that the combination of AMX with 1,8-cineole notably influences the enzymatic resistance of the reaction by decreasing the affinity of the β-lactam antibiotic, AMX, to the β-lactamase enzyme. All obtained results suggested that the AMX/1,8-cineole association could be employed in therapy to overcome bacterial resistance to AMX while reducing the prevalence of resistance.
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29
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Ben Ali Hassine C, Güngör Ö, Burç M, Özcan İ, Köytepe S, Titretir Duran S. Electrochemical determination of ceftriaxone using polyurethane-modified electrode containing caffeic acid and chitosan. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2021.2005092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Chedia Ben Ali Hassine
- Electrical and Electronics Engineering Department, Engineering Faculty, Özyeğin University, İstanbul, Turkey
| | - Öznur Güngör
- Chemistry Department, Arts and Sciences Faculty, Inönü University, Malatya, Turkey
| | - Muammer Burç
- Chemistry Department, Arts and Sciences Faculty, Inönü University, Malatya, Turkey
| | - İmren Özcan
- Chemistry Department, Arts and Sciences Faculty, Inönü University, Malatya, Turkey
| | - Süleyman Köytepe
- Chemistry Department, Arts and Sciences Faculty, Inönü University, Malatya, Turkey
| | - Serap Titretir Duran
- Chemistry Department, Arts and Sciences Faculty, Inönü University, Malatya, Turkey
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30
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Zeferino AS, Mira AR, Delgadinho M, Brito M, Ponte T, Ribeiro E. Drug Resistance and Epigenetic Modulatory Potential of Epigallocatechin-3-Gallate Against Staphylococcus aureus. Curr Microbiol 2022; 79:149. [PMID: 35397072 DOI: 10.1007/s00284-022-02841-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 03/14/2022] [Indexed: 01/26/2023]
Abstract
Antimicrobial resistance of human pathogens, such as methicillin-resistant Staphylococcus aureus, is described by the World Health Organization as a health global challenge and efforts must be made for the discovery of new effective and safe compounds. This work aims to evaluate epigallocatechin-3-gallate (EGCG) epigenetic and modulatory drug potential against S. aureus in vitro and in vivo. S. aureus strains were isolated from commensal flora of healthy volunteers. Antibiotic susceptibility and synergistic assay were assessed through disk diffusion accordingly to EUCAST guidelines with and without co-exposure to EGCG at final concentrations of 250 µg/ml, 100 µg/ml, 50 µg/ml, and 25 µg/ml. Transcriptional expression of orfx, spdC, and WalKR was performed through qRT-PCR. A 90-day interventional study was performed with daily consumption of 225 mg of EGCG. Obtained data revealed a high prevalence of S. aureus colonization in healthcare workers and clearly demonstrated the antimicrobial and synergistic potential of EGCG as well as divergent resistant phenotypes associated with altered transcriptional expression of epigenetic and drug response modulators genes. Here, we demonstrate the potential of EGCG for antimicrobial treatment and/or therapeutic adjuvant against antibiotic-resistant microorganisms and report divergent patterns of epigenetic modulators expression associated with phenotypic resistance profiles.
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Affiliation(s)
- Ana Sofia Zeferino
- Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Av. D. João II, lote 4.69.01, Parque das Nações, 1990-096, Lisbon, Portugal.,Centro Hospitalar de Lisboa Central; Hospital Curry Cabral, Rua Beneficência, 8, 1050-099, Lisbon, Portugal
| | - Ana Rita Mira
- H&TRC- Health & Technology Research Center, ESTeSL- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Av. D. João II, lote 4.69.01, Parque das Nações, 1990-096, Lisbon, Portugal.,Hospital do Espírito Santo de Évora, E.P.E., Évora, Portugal
| | - Mariana Delgadinho
- H&TRC- Health & Technology Research Center, ESTeSL- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Av. D. João II, lote 4.69.01, Parque das Nações, 1990-096, Lisbon, Portugal
| | - Miguel Brito
- H&TRC- Health & Technology Research Center, ESTeSL- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Av. D. João II, lote 4.69.01, Parque das Nações, 1990-096, Lisbon, Portugal
| | - Tomás Ponte
- H&TRC- Health & Technology Research Center, ESTeSL- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Av. D. João II, lote 4.69.01, Parque das Nações, 1990-096, Lisbon, Portugal.,Escola Superior de Saúde - Universidade do Algarve, Faro, Portugal
| | - Edna Ribeiro
- H&TRC- Health & Technology Research Center, ESTeSL- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Av. D. João II, lote 4.69.01, Parque das Nações, 1990-096, Lisbon, Portugal.
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31
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Kumar S, Mollo A, Kahne D, Ruiz N. The Bacterial Cell Wall: From Lipid II Flipping to Polymerization. Chem Rev 2022; 122:8884-8910. [PMID: 35274942 PMCID: PMC9098691 DOI: 10.1021/acs.chemrev.1c00773] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The peptidoglycan (PG) cell wall is an extra-cytoplasmic glycopeptide polymeric structure that protects bacteria from osmotic lysis and determines cellular shape. Since the cell wall surrounds the cytoplasmic membrane, bacteria must add new material to the PG matrix during cell elongation and division. The lipid-linked precursor for PG biogenesis, Lipid II, is synthesized in the inner leaflet of the cytoplasmic membrane and is subsequently translocated across the bilayer so that the PG building block can be polymerized and cross-linked by complex multiprotein machines. This review focuses on major discoveries that have significantly changed our understanding of PG biogenesis in the past decade. In particular, we highlight progress made toward understanding the translocation of Lipid II across the cytoplasmic membrane by the MurJ flippase, as well as the recent discovery of a novel class of PG polymerases, the SEDS (shape, elongation, division, and sporulation) glycosyltransferases RodA and FtsW. Since PG biogenesis is an effective target of antibiotics, these recent developments may lead to the discovery of much-needed new classes of antibiotics to fight bacterial resistance.
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Affiliation(s)
- Sujeet Kumar
- Department of Microbiology, The Ohio State University, Columbus, Ohio 43210, United States
| | - Aurelio Mollo
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Daniel Kahne
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States.,Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts 02138, United States.,Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Natividad Ruiz
- Department of Microbiology, The Ohio State University, Columbus, Ohio 43210, United States
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32
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Mapipa Q, Digban TO, Nnolim NE, Nontongana N, Okoh AI, Nwodo UU. Molecular Characterization and Antibiotic Susceptibility Profile of Acinetobacter baumannii Recovered from Hospital Wastewater Effluents. Curr Microbiol 2022; 79:123. [PMID: 35258680 DOI: 10.1007/s00284-022-02815-7] [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: 08/29/2021] [Accepted: 02/17/2022] [Indexed: 11/25/2022]
Abstract
Acinetobacter baumannii (A. baumannii) plays a significant part in nosocomial infections world over and is re-emerging as a formidable pathogen due to the wide range of antibiotic resistance factors it acquires and environmental resilience. The high attendance of patients (outpatients and inpatients) into the health care facilities formed the basis for the selection of the hospitals. Consequently, this study profiled the antibiogram and antibiotic resistance genes of A. baumannii isolated from selected hospital wastewater effluents. A total of twenty-four (24) wastewater samples from three selected hospital drainages were collected and analysed presumptively by culture-dependent methods for A. baumannii. The identity confirmation of A. baumannii was done by the amplification of recA and blaoxa-51 genes. Virulence and antibiotic resistance markers were assessed using polymerase chain reaction. A total of 53 A. baumannii isolates were confirmed and the highest antibiotic resistance profile was 93% (piperacillin). Multiple antibiotic resistance index (MARI) showed a range of 0.23 and 0.46. FimH virulence gene was detected in 29 (55%) of the isolates. Tetracycline and beta-lactam resistance markers were found; 70% and 92% of the isolates possessed tetA and ampC genes. The isolates showed high level of resistance to antibiotics. The multiple antibiotic resistance index (MARI) of ≥ 0.2 indicates that some of the isolates harbour virulence and resistance traits emerging from high-risk source thereby projecting a threat to public health.
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Affiliation(s)
- Qaqamba Mapipa
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, 5700, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
| | - Tennison Onoriode Digban
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, 5700, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
| | - Nonso Emmanuel Nnolim
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, 5700, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
| | - Nolonwabo Nontongana
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, 5700, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
| | - Anthony Ifeanyi Okoh
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, 5700, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
- Department of Environmental Health Sciences, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Uchechukwu U Nwodo
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, 5700, South Africa.
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa.
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33
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Silver(I)-catalyzed Hydroamination of (3S,4R)-4-Acetoxy-3-[(R)-1-tert-butyldimethylsiloxy)ethyl]azetidine-2-one Derivatives for the Synthesis of Carbapenem Skeleton. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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34
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Mendonça J, Guedes C, Silva C, Sá S, Oliveira M, Accioly G, Baylina P, Barata P, Pereira C, Fernandes R. New CTX-M Group Conferring β-Lactam Resistance: A Compendium of Phylogenetic Insights from Biochemical, Molecular, and Structural Biology. BIOLOGY 2022; 11:biology11020256. [PMID: 35205122 PMCID: PMC8869216 DOI: 10.3390/biology11020256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/31/2022] [Accepted: 02/02/2022] [Indexed: 12/14/2022]
Abstract
The production of extended-spectrum β-lactamases (ESBLs) is the main defense mechanism found in Gram negative bacteria. Among all the ESBLs, the CTX-M enzymes appear as the most efficient in terms of dissemination in different epidemiological contexts. CTX-M enzymes exhibit a striking plasticity, with a large number of allelic variants distributed in several sublineages, which can be associated with functional heterogeneity of clinical relevance. This observational analytical study provides an update of this family, currently with more than 200 variants described, from a phylogenetic, molecular, and structural point of view through homology in amino acid sequences. Our data, combined with described literature, provide phylogenetic and structural evidence of a new group. Thus, herein, we propose six groups among CTX-M enzymes: the already stablished CTX-M-1, CTX-M-2, CTX-M-8, CTX-M-9, and CTX-M-25 clusters, as well as CTX-M-151 as the new cluster.
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Affiliation(s)
- Jacinta Mendonça
- LABMI—Laboratory of Medical and Industrial Biotechnology, 4200-374 Porto, Portugal; (J.M.); (C.G.); (C.S.); (S.S.); (M.O.); (R.F.)
- ESS—Escola Superior de Saúde, IPP—Porto Polytechnic Institute, 4200-072 Porto, Portugal;
| | - Carla Guedes
- LABMI—Laboratory of Medical and Industrial Biotechnology, 4200-374 Porto, Portugal; (J.M.); (C.G.); (C.S.); (S.S.); (M.O.); (R.F.)
- ESS—Escola Superior de Saúde, IPP—Porto Polytechnic Institute, 4200-072 Porto, Portugal;
- i3S—Metabesity Research Team, Instituto de Investigação e Inovação em Saúde, 4200-135 Porto, Portugal
- UVIGO—Facultade de Biología, Universidade de Vigo, 36310 Pontevedra, Spain
| | - Carina Silva
- LABMI—Laboratory of Medical and Industrial Biotechnology, 4200-374 Porto, Portugal; (J.M.); (C.G.); (C.S.); (S.S.); (M.O.); (R.F.)
- ESS—Escola Superior de Saúde, IPP—Porto Polytechnic Institute, 4200-072 Porto, Portugal;
- UVIGO—Facultade de Biología, Universidade de Vigo, 36310 Pontevedra, Spain
| | - Sara Sá
- LABMI—Laboratory of Medical and Industrial Biotechnology, 4200-374 Porto, Portugal; (J.M.); (C.G.); (C.S.); (S.S.); (M.O.); (R.F.)
- i3S—Metabesity Research Team, Instituto de Investigação e Inovação em Saúde, 4200-135 Porto, Portugal
- FMUP—Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal
| | - Marco Oliveira
- LABMI—Laboratory of Medical and Industrial Biotechnology, 4200-374 Porto, Portugal; (J.M.); (C.G.); (C.S.); (S.S.); (M.O.); (R.F.)
- i3S—Metabesity Research Team, Instituto de Investigação e Inovação em Saúde, 4200-135 Porto, Portugal
- ESB—Escola Superior de Biotecnologia, Universidade Católica Portuguesa, 4169-005 Porto, Portugal
| | - Gustavo Accioly
- ESS—Escola Superior de Saúde, IPP—Porto Polytechnic Institute, 4200-072 Porto, Portugal;
| | - Pilar Baylina
- LABMI—Laboratory of Medical and Industrial Biotechnology, 4200-374 Porto, Portugal; (J.M.); (C.G.); (C.S.); (S.S.); (M.O.); (R.F.)
- ESS—Escola Superior de Saúde, IPP—Porto Polytechnic Institute, 4200-072 Porto, Portugal;
- i3S—Metabesity Research Team, Instituto de Investigação e Inovação em Saúde, 4200-135 Porto, Portugal
- Correspondence: (P.B.); (P.B.); (C.P.)
| | - Pedro Barata
- LABMI—Laboratory of Medical and Industrial Biotechnology, 4200-374 Porto, Portugal; (J.M.); (C.G.); (C.S.); (S.S.); (M.O.); (R.F.)
- i3S—Metabesity Research Team, Instituto de Investigação e Inovação em Saúde, 4200-135 Porto, Portugal
- UFP—Faculdade de Ciências da Saúde, Universidade Fernando Pessoa, 4200-253 Porto, Portugal
- Correspondence: (P.B.); (P.B.); (C.P.)
| | - Cláudia Pereira
- LABMI—Laboratory of Medical and Industrial Biotechnology, 4200-374 Porto, Portugal; (J.M.); (C.G.); (C.S.); (S.S.); (M.O.); (R.F.)
- i3S—Metabesity Research Team, Instituto de Investigação e Inovação em Saúde, 4200-135 Porto, Portugal
- Correspondence: (P.B.); (P.B.); (C.P.)
| | - Ruben Fernandes
- LABMI—Laboratory of Medical and Industrial Biotechnology, 4200-374 Porto, Portugal; (J.M.); (C.G.); (C.S.); (S.S.); (M.O.); (R.F.)
- ESS—Escola Superior de Saúde, IPP—Porto Polytechnic Institute, 4200-072 Porto, Portugal;
- i3S—Metabesity Research Team, Instituto de Investigação e Inovação em Saúde, 4200-135 Porto, Portugal
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Nocchetti M, Boccalon E, Pica M, Giordano NMR, Finori F, Pietrella D, Cipiciani A. Overcoming Antibiotic Resistance: Playing the 'Silver Nanobullet' Card. MATERIALS 2022; 15:ma15030932. [PMID: 35160881 PMCID: PMC8839980 DOI: 10.3390/ma15030932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/17/2022] [Accepted: 01/22/2022] [Indexed: 12/10/2022]
Abstract
Enhancing the antibacterial activity of old antibiotics by a multitarget approach, such as combining antibiotics with metal nanoparticles, is a valuable strategy to overcome antibacterial resistance. In this work, the synergistic antimicrobial effect of silver nanoparticles and antibiotics, immobilized on a solid support, was investigated. Nanometric layered double hydroxides (LDH) based on Zn(II) and Al(III) were prepared by the double microemulsion technique. The dual function of LDH as an anionic exchanger and support for metal nanoparticles was exploited to immobilize both silver and antibiotics. Cefazolin (CFZ), a β-lactam, and nalidixic acid (NAL), a quinolone, were selected and intercalated into LDH obtaining ZnAl-CFZ and ZnAl-NAL samples. These samples were used for the growth of silver nanoparticles with dimension ranging from 2.5 to 8 nm. Silver and antibiotics release profiles, from LDH loaded with antibiotics and Ag/antibiotics, were evaluated in two different media: water and phosphate buffer. Interestingly, the release profiles are affected by both the acceptor media and the presence of silver. The synergistic antibacterial activity of LDH containing both silver and antibiotics were investigated on gram-positives (Staphylococcus aureus and Streptococcus pneumoniae) and gram-negatives (Pseudomonas aeruginosa) and compared with the plain antimicrobials and LDH containing only antibiotics or silver.
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Affiliation(s)
- Morena Nocchetti
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo, 1, 06123 Perugia, Italy; (M.P.); (N.M.R.G.)
- Correspondence:
| | - Elisa Boccalon
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Salerno, Italy;
| | - Monica Pica
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo, 1, 06123 Perugia, Italy; (M.P.); (N.M.R.G.)
| | | | - Francesco Finori
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto, 8, 06123 Perugia, Italy; (F.F.); (A.C.)
| | - Donatella Pietrella
- Microbiology and Clinical Microbiology, Department of Medicine and Surgery, University of Perugia, Piazzale Gambuli, 1, 06129 Perugia, Italy;
| | - Antonio Cipiciani
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto, 8, 06123 Perugia, Italy; (F.F.); (A.C.)
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Fan P, Ma Z, Partow AJ, Kim M, Shoemaker GM, Tan R, Tong Z, Nelson CD, Jang Y, Jeong KC. A novel combination therapy for multidrug resistant pathogens using chitosan nanoparticles loaded with β-lactam antibiotics and β-lactamase inhibitors. Int J Biol Macromol 2022; 195:506-514. [PMID: 34920071 DOI: 10.1016/j.ijbiomac.2021.12.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 11/24/2021] [Accepted: 12/05/2021] [Indexed: 12/20/2022]
Abstract
Antimicrobial resistance is one of the greatest global threats. Particularly, multidrug resistant extended-spectrum β-lactamase (ESBL)-producing pathogens confer resistance to many commonly used medically important antibiotics, especially beta-lactam antibiotics. Here, we developed an innovative combination approach to therapy for multidrug resistant pathogens by encapsulating cephalosporin antibiotics and β-lactamase inhibitors with chitosan nanoparticles (CNAIs). The four combinations of CNAIs including two cephalosporin antibiotics (cefotaxime and ceftiofur) with two β-lactamase inhibitors (tazobactam and clavulanate) were engineered as water-oil-water emulsions. Four combinations of CNAIs showed efficient antimicrobial activity against multidrug resistant ESBL-producing Enterobacteriaceae. The CNAIs showed enhanced antimicrobial activity compared to naïve chitosan nanoparticles and to the combination of cephalosporin antibiotics and β-lactamase inhibitors. Furthermore, CNAIs attached on the bacterial surface changed the permeability to the outer membrane, resulting in cell damage that leads to cell death. Taken together, CNAIs have provided promising potential for treatment of diseases caused by critically important ESBL-producing multidrug resistant pathogens.
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Affiliation(s)
- Peixin Fan
- Emerging Pathogens Institute, University of Florida, Gainesville, FL 32611, USA; Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Zhengxin Ma
- Emerging Pathogens Institute, University of Florida, Gainesville, FL 32611, USA; Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Arianna J Partow
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Miju Kim
- Emerging Pathogens Institute, University of Florida, Gainesville, FL 32611, USA; Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Grace M Shoemaker
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Ruwen Tan
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Zhaohui Tong
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Corwin D Nelson
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Yeongseon Jang
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Kwangcheol C Jeong
- Emerging Pathogens Institute, University of Florida, Gainesville, FL 32611, USA; Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA.
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37
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MIP-based extraction techniques for the determination of antibiotic residues in edible meat samples: Design, performance & recent developments. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2021.11.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Maris A, Melandri S, Evangelisti L, Vigorito A, Sigismondi S, Calabrese C, Usabiaga I. Structure and dynamics of methacrylamide, a computational and free-jet rotational spectroscopic study. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131391] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
The Pseudomonas aeruginosa is one of the bacteria that cause serious infections due to resistance to many antibiotics can be fatal in severe cases. Antimicrobial resistance is a global public health concern. To solve this problem, interest in phage therapy has revived; some studies are being developed to try to prove the effectiveness of this therapy. Thus, in this opinion article, several historical aspects are addressed as well some applications of phage therapy against P. aeruginosa.
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40
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Levashova E, Bakulina O, Dar'in D, Krasavin M. Catalyst‐Free Synthesis of Diastereomerically Pure 3‐Cyanoazetidin‐2‐ones via Thermally Promoted Tandem Wolff Rearrangement–Staudinger [2+2] Cycloaddition. ChemistrySelect 2021. [DOI: 10.1002/slct.202103446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ekaterina Levashova
- Saint Petersburg State University Saint Petersburg 199034 Russian Federation
| | - Olga Bakulina
- Saint Petersburg State University Saint Petersburg 199034 Russian Federation
| | - Dmitry Dar'in
- Saint Petersburg State University Saint Petersburg 199034 Russian Federation
| | - Mikhail Krasavin
- Saint Petersburg State University Saint Petersburg 199034 Russian Federation
- Immanuel Kant Baltic Federal University Kaliningrad 236041 Russian Federation
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41
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Abstract
In this contribution, we provide a comprehensive overview of acyclic twisted amides, covering the literature since 1993 (the year of the first recognized report on acyclic twisted amides) through June 2020. The review focuses on classes of acyclic twisted amides and their key structural properties, such as amide bond twist and nitrogen pyramidalization, which are primarily responsible for disrupting nN to π*C═O conjugation. Through discussing acyclic twisted amides in comparison with the classic bridged lactams and conformationally restricted cyclic fused amides, the reader is provided with an overview of amidic distortion that results in novel conformational features of acyclic amides that can be exploited in various fields of chemistry ranging from organic synthesis and polymers to biochemistry and structural chemistry and the current position of acyclic twisted amides in modern chemistry.
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Affiliation(s)
- Guangrong Meng
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Jin Zhang
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States.,College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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42
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Melenotte C, Pontarotti P, Pinault L, Mège JL, Devaux C, Raoult D. Could β-Lactam Antibiotics Block Humoral Immunity? Front Immunol 2021; 12:680146. [PMID: 34603278 PMCID: PMC8480522 DOI: 10.3389/fimmu.2021.680146] [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: 03/31/2021] [Accepted: 08/26/2021] [Indexed: 11/13/2022] Open
Abstract
It has been reported that treatment with β-lactam antibiotics induces leukopenia and candidemia, worsens the clinical response to anticancer immunotherapy and decreases immune response to vaccination. β-lactamases can cleave β-lactam antibiotics by blocking their activity. Two distincts superfamilies of β-lactamases are described, the serine β-lactamases and the zinc ion dependent metallo-β-lactamases. In human, 18 metallo-β-lactamases encoding genes (hMBLs) have been identified. While the physiological role of most of them remains unknown, it is well established that the SNM1A, B and C proteins are involved in DNA repair. The SNM1C/Artemis protein is precisely associated in the V(D)J segments rearrangement, that leads to immunoglobulin (Ig) and T-cell receptor variable regions, which have a crucial role in the immune response. Thus in humans, SNM1C/Artemis mutation is associated with severe combined immunodeficiency characterized by hypogammaglobulinemia deficient cellular immunity and opportunistic infections. While catalytic site of hMBLs and especially that of the SNM1 family is highly conserved, in vitro studies showed that some β-lactam antibiotics, and precisely third generation of cephalosporin and ampicillin, inhibit the metallo-β-lactamase proteins SNM1A & B and the SNM1C/Artemis protein complex. By analogy, the question arises as to whether β-lactam antibiotics can block the SNM1C/Artemis protein in humans inducing transient immunodeficiency. We reviewed here the literature data supporting this hypothesis based on in silico, in vitro and in vivo evidences. Understanding the impact of β-lactam antibiotics on the immune cell will offer new therapeutic clues and new clinical approaches in oncology, immunology, and infectious diseases.
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Affiliation(s)
- Cléa Melenotte
- Aix-Marseille Univ, Institut de Recherche et Développement (IRD), Assistance Publique des Hpitaux de Marseille (APHM), Microbes, Evolution, Phylogénie et Infection (MEPHI), Marseille, France.,Institut Hospitalo-Universitaire (IHU)-Méditerranée Infection, Marseille, France
| | - Pierre Pontarotti
- Aix-Marseille Univ, Institut de Recherche et Développement (IRD), Assistance Publique des Hpitaux de Marseille (APHM), Microbes, Evolution, Phylogénie et Infection (MEPHI), Marseille, France.,Institut Hospitalo-Universitaire (IHU)-Méditerranée Infection, Marseille, France.,Centre National de la Recherche Scientifique (CNRS), Marseille, France
| | - Lucile Pinault
- Aix-Marseille Univ, Institut de Recherche et Développement (IRD), Assistance Publique des Hpitaux de Marseille (APHM), Microbes, Evolution, Phylogénie et Infection (MEPHI), Marseille, France.,Institut Hospitalo-Universitaire (IHU)-Méditerranée Infection, Marseille, France
| | - Jean-Louis Mège
- Aix-Marseille Univ, Institut de Recherche et Développement (IRD), Assistance Publique des Hpitaux de Marseille (APHM), Microbes, Evolution, Phylogénie et Infection (MEPHI), Marseille, France.,Institut Hospitalo-Universitaire (IHU)-Méditerranée Infection, Marseille, France
| | - Christian Devaux
- Aix-Marseille Univ, Institut de Recherche et Développement (IRD), Assistance Publique des Hpitaux de Marseille (APHM), Microbes, Evolution, Phylogénie et Infection (MEPHI), Marseille, France.,Institut Hospitalo-Universitaire (IHU)-Méditerranée Infection, Marseille, France.,Centre National de la Recherche Scientifique (CNRS), Marseille, France
| | - Didier Raoult
- Aix-Marseille Univ, Institut de Recherche et Développement (IRD), Assistance Publique des Hpitaux de Marseille (APHM), Microbes, Evolution, Phylogénie et Infection (MEPHI), Marseille, France.,Institut Hospitalo-Universitaire (IHU)-Méditerranée Infection, Marseille, France
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Sapra R, Rajora AK, Kumar P, Maurya GP, Pant N, Haridas V. Chemical Biology of Sortase A Inhibition: A Gateway to Anti-infective Therapeutic Agents. J Med Chem 2021; 64:13097-13130. [PMID: 34516107 DOI: 10.1021/acs.jmedchem.1c00386] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Staphylococcus aureus is the leading cause of hospital-acquired infections. The enzyme sortase A, present on the cell surface of S. aureus, plays a key role in bacterial virulence without affecting the bacterial viability. Inhibition of sortase A activity offers a powerful but clinically less explored therapeutic strategy, as it offers the possibility of not inducing any selective pressure on the bacteria to evolve drug-resistant strains. In this Perspective, we offer a chemical space narrative for the design of sortase A inhibitors, as delineated into three broad domains: peptidomimetics, natural products, and synthetic small molecules. This provides immense opportunities for medicinal chemists to alleviate the ever-growing crisis of antibiotic resistance.
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Affiliation(s)
- Rachit Sapra
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi-110016, India
| | - Amit K Rajora
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi-110016, India
| | - Pushpendra Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi-110016, India
| | - Govind P Maurya
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi-110016, India
| | - Nalin Pant
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi-110016, India
| | - V Haridas
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi-110016, India
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44
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Zhang C, Zhang Q, Dong S, Zhou D. Could co-substrate sodium acetate simultaneously promote Chlorella to degrade amoxicillin and produce bioresources? JOURNAL OF HAZARDOUS MATERIALS 2021; 417:126147. [PMID: 34229410 DOI: 10.1016/j.jhazmat.2021.126147] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/11/2021] [Accepted: 05/14/2021] [Indexed: 06/13/2023]
Abstract
Integrating microalgae culture and wastewater purification is a promising technology for sustainable bioresource production. However, the challenge is that toxins in wastewater usually limit risk elimination and cause poor bioresource production. Easy-to-biodegrade substrates could alleviate the resistant stress on a bacterial community but we know little about how they function with microalgae. In this study, we tested if Easy-to-biodegrade substrates could simultaneously promote Chlorella to degrade antibiotic amoxicillin (AMO) and produce bioresources. Sodium acetate (NaAC) was used as the representative co-substrate. The results showed NaAC could enhance AMO removal by 76%. The β-lactam structure was destroyed and detoxified to small molecules, due to the up-regulation of hydrolase, oxidoreductase, reductase, and transferase. Chlorella biomass production increased by 36%. The genes encoding the glutathione metabolism and peroxisome pathways were significantly up-regulated to alleviate the antibiotic stress, and the DNA replication pathway was activated. As a result, the production of lipid, carbohydrate, and protein was enhanced by 61%, 122%, and 34%, respectively. This study provides new insights for using microalgae to recover bioresources from toxic wastewater and reveals the critical underlying mechanisms.
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Affiliation(s)
- Chongjun Zhang
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, China; Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
| | - Qifeng Zhang
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, China
| | - Shuangshi Dong
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
| | - Dandan Zhou
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, China.
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45
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Adesiyan IM, Bisi-Johnson MA, Ogunfowokan AO, Okoh AI. Occurrence and antibiogram signatures of some Vibrio species recovered from selected rivers in South West Nigeria. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:42458-42476. [PMID: 33813704 DOI: 10.1007/s11356-021-13603-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 03/17/2021] [Indexed: 06/12/2023]
Abstract
Vibrio species, widely distributed in water environments, has emerged as a prominent cause of water and food-related disease outbreaks posing significant risk to human and animal health worldwide. About 40% of presumptive isolates recovered from four selected rivers in Southwest Nigeria and, established as Vibrio species genus through polymerase chain reaction techniques., were subjected to antibiotic susceptibility testing against a panel of 18 commonly used antibiotics. The relative prevalence of key Vibrio species (V. parahaemolyticus, V. vulnificus, V. mimicus, V. harveyi, and V. cholerae) was in the order 17%, 13.3%, 4.4%, 2.2%, and 2.2% respectively. Antibiotic resistance by all Vibrio species was mostly observed against doxycycline (71-89%), erythromycin (86-100%), tetracycline (71-89%), rifampicin (86-100%), and sulfamethoxazole (87-100%), though susceptibility to meropenem (86-100%), cephalothin (60-100%), norfloxacin (93-100%), ciprofloxacin (88-100%), amikacin (64-100%), gentamicin (57-74%), and trimethoprim/sulfamethoxazole (57-81%) was equally observed in all species. Vibrio mimicus expressed highest resistance against streptomycin and chloramphenicol (64%), while V. vulnificus (52%) and V. cholerae (57%) had the highest resistance against cephalothin. High resistance against ampicillin (57%) and amoxicillin (50%) was exhibited by V. cholerae and V. mimicus respectively. Indexes of multiple antibiotic resistances (MARI) among Vibrio species ranged between 0.11 and 0.72 with the highest MAR index of 0.72 observed in one isolate of V. vulnificus. This study reveals high prevalence of Vibrio species in the selected rivers as well as elevated resistance against some first-line antibiotics, which suggests possible inappropriate antimicrobial usage around study communities. We conclude that the freshwater resources investigated are unfit for domestic, industrial, and recreational uses without treatment prior to use and are potential reservoirs of antibiotic-resistant Vibrio species in this environment.
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Affiliation(s)
- Ibukun M Adesiyan
- Department of Biological Sciences, Achievers University, Owo, Ondo State, Nigeria.
- Institute of Ecology and Environmental Studies, Obafemi Awolowo University, Ile Ife, Osun-State, 220005, Nigeria.
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa.
| | | | - Aderemi O Ogunfowokan
- Department of Industrial Chemistry, The Technical University, Ibadan,, Oyo State, Nigeria
- Department of Chemistry, Obafemi Awolowo University, Ile Ife, Nigeria
| | - Anthony I Okoh
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa
- Department of Environmental Health Sciences College of Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
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Mbyemeire H, Ssekatawa K, Kato CD, Wampande EM. Molecular characterization and distribution of cephalosporin resistance determinants in Escherichia coli and Klebsiella pneumoniae isolated from patients attending Kampala International University Teaching Hospital in Bushenyi, Western Uganda. ALEXANDRIA JOURNAL OF MEDICINE 2021. [DOI: 10.1080/20905068.2021.1952821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Herbert Mbyemeire
- Department of Biochemistry, Faculty of Biomedical Sciences, Kampala International University-Western, Bushenyi, Uganda
- African Center of Excellence in Materials Product Development and Nanotechnology (MAPRONANO ACE, College of Engineering Design Art and Technology Makerere University, Kampala, Uganda, Africa
| | - Kenneth Ssekatawa
- Department of Biochemistry, Faculty of Biomedical Sciences, Kampala International University-Western, Bushenyi, Uganda
- African Center of Excellence in Materials Product Development and Nanotechnology (MAPRONANO ACE, College of Engineering Design Art and Technology Makerere University, Kampala, Uganda, Africa
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Charles D. Kato
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
- Department of Microbiology and Immunology, Faculty of Biomedical Sciences, Kampala International University-Western Campus, Bushenyi, Uganda
| | - Eddie M. Wampande
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
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Głowacka IE, Grabkowska-Drużyc M, Andrei G, Schols D, Snoeck R, Witek K, Podlewska S, Handzlik J, Piotrowska DG. Novel N-Substituted 3-Aryl-4-(diethoxyphosphoryl)azetidin-2-ones as Antibiotic Enhancers and Antiviral Agents in Search for a Successful Treatment of Complex Infections. Int J Mol Sci 2021; 22:8032. [PMID: 34360797 PMCID: PMC8348901 DOI: 10.3390/ijms22158032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/22/2021] [Accepted: 07/23/2021] [Indexed: 02/07/2023] Open
Abstract
A novel series of N-substituted cis- and trans-3-aryl-4-(diethoxyphosphoryl)azetidin-2-ones were synthesized by the Kinugasa reaction of N-methyl- or N-benzyl-(diethyoxyphosphoryl)nitrone and selected aryl alkynes. Stereochemistry of diastereoisomeric adducts was established based on vicinal H3-H4 coupling constants in azetidin-2-one ring. All the obtained azetidin-2-ones were evaluated for the antiviral activity against a broad range of DNA and RNA viruses. Azetidin-2-one trans-11f showed moderate inhibitory activity against human coronavirus (229E) with EC50 = 45 µM. The other isomer cis-11f was active against influenza A virus H1N1 subtype (EC50 = 12 µM by visual CPE score; EC50 = 8.3 µM by TMS score; MCC > 100 µM, CC50 = 39.9 µM). Several azetidin-2-ones 10 and 11 were tested for their cytostatic activity toward nine cancerous cell lines and several of them appeared slightly active for Capan-1, Hap1 and HCT-116 cells values of IC50 in the range 14.5-97.9 µM. Compound trans-11f was identified as adjuvant of oxacillin with significant ability to enhance the efficacy of this antibiotic toward the highly resistant S. aureus strain HEMSA 5. Docking and molecular dynamics simulations showed that enantiomer (3R,4S)-11f can be responsible for the promising activity due to the potency in displacing oxacillin at β-lactamase, thus protecting the antibiotic from undesirable biotransformation.
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Affiliation(s)
- Iwona E. Głowacka
- Bioorganic Chemistry Laboratory, Faculty of Pharmacy, Medical University of Lodz, ul. Muszynskiego 1, 90-151 Lodz, Poland; (I.E.G.); (M.G.-D.)
| | - Magdalena Grabkowska-Drużyc
- Bioorganic Chemistry Laboratory, Faculty of Pharmacy, Medical University of Lodz, ul. Muszynskiego 1, 90-151 Lodz, Poland; (I.E.G.); (M.G.-D.)
| | - Graciela Andrei
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Herestraat 49, Box 1030, B-3000 Leuven, Belgium; (G.A.); (D.S.); (R.S.)
| | - Dominique Schols
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Herestraat 49, Box 1030, B-3000 Leuven, Belgium; (G.A.); (D.S.); (R.S.)
| | - Robert Snoeck
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Herestraat 49, Box 1030, B-3000 Leuven, Belgium; (G.A.); (D.S.); (R.S.)
| | - Karolina Witek
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, ul. Medyczna 9, 30-688 Krakow, Poland; (K.W.); (S.P.); (J.H.)
| | - Sabina Podlewska
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, ul. Medyczna 9, 30-688 Krakow, Poland; (K.W.); (S.P.); (J.H.)
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Medicinal Chemistry, ul. Smętna 12, 31-343 Krakow, Poland
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, ul. Medyczna 9, 30-688 Krakow, Poland; (K.W.); (S.P.); (J.H.)
| | - Dorota G. Piotrowska
- Bioorganic Chemistry Laboratory, Faculty of Pharmacy, Medical University of Lodz, ul. Muszynskiego 1, 90-151 Lodz, Poland; (I.E.G.); (M.G.-D.)
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da Trindade MT, Kogawa AC, Salgado HRN. Turbidimetric Method: A Multi-Advantageous Option for Assessing the Potency of Ceftriaxone Sodium in Powder for Injection. J AOAC Int 2021; 104:204-210. [PMID: 33221857 DOI: 10.1093/jaoacint/qsaa085] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 11/13/2022]
Abstract
BACKGROUND Ceftriaxone sodium, an antimicrobial used in parenteral form, does not have a microbiological method by turbidimetry described in the literature. For drugs from antimicrobial class, the existence of a microbiological method for assessing their potency is essential. Not only are the results from the physical-chemical methods enough, but microbiological analyzes are also necessary. OBJECTIVE AND METHODS Thus, this paper reports the development and validation of an efficient, accurate, reproducible, fast, and low-cost microbiological assay by turbidimetry to quantify ceftriaxone sodium in powder for injection. Water was used as the diluent to prepare the ceftriaxone solutions. BHI broth as used as culture media for the growth of the S. aureus ATCC 6538 at 9%. RESULTS The method was linear in the range of 100-196 µg/mL, selective against the sample adjuvants and the forced degradation test, precise (intraday RSD 4.53%, interday RSD 3.85% and between analysts tcalculated 0.14 < 2.23 tcritical), accurate with recovery of 100.33% and robust against minor changes in the volume of culture medium used, wavelength, incubation time, and inoculum concentration. CONCLUSIONS AND HIGHLIGHTS The turbidimetric method developed in this paper is a convenient and valuable alternative to the routine quality control of ceftriaxone sodium in powder for injection, since it allows a reliable quantification and can be used to complement the physical-chemical analysis.
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Affiliation(s)
- Mariana Teixeira da Trindade
- Departamento de Fármacos e Medicamentos, Faculdade de Ciências Farmacêuticas de Araraquara, Universidade Estadual Paulista-UNESP, Araraquara, São Paulo, Brasil
| | - Ana Carolina Kogawa
- Laboratório de Controle de Qualidade, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, Goiás, Brasil
| | - Hérida Regina Nunes Salgado
- Departamento de Fármacos e Medicamentos, Faculdade de Ciências Farmacêuticas de Araraquara, Universidade Estadual Paulista-UNESP, Araraquara, São Paulo, Brasil
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Doppler imaging detects bacterial infection of living tissue. Commun Biol 2021; 4:178. [PMID: 33568744 PMCID: PMC7876006 DOI: 10.1038/s42003-020-01550-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 11/25/2020] [Indexed: 01/17/2023] Open
Abstract
Living 3D in vitro tissue cultures, grown from immortalized cell lines, act as living sentinels as pathogenic bacteria invade the tissue. The infection is reported through changes in the intracellular dynamics of the sentinel cells caused by the disruption of normal cellular function by the infecting bacteria. Here, the Doppler imaging of infected sentinels shows the dynamic characteristics of infections. Invasive Salmonella enterica serovar Enteritidis and Listeria monocytogenes penetrate through multicellular tumor spheroids, while non-invasive strains of Escherichia coli and Listeria innocua remain isolated outside the cells, generating different Doppler signatures. Phase distributions caused by intracellular transport display Lévy statistics, introducing a Lévy-alpha spectroscopy of bacterial invasion. Antibiotic treatment of infected spheroids, monitored through time-dependent Doppler shifts, can distinguish drug-resistant relative to non-resistant strains. This use of intracellular Doppler spectroscopy of living tissue sentinels opens a new class of microbial assay with potential importance for studying the emergence of antibiotic resistance. Honggu Choi et al. use biodynamic Doppler imaging to monitor bacterial infection of 3D living tissue and describe changes in the intracellular motions of living host tissue induced by early-stage infection. This work demonstrates the potential for the clinical use of this method to test for antibiotic-resistant infections.
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Multidrug-resistant Acinetobacter baumannii as an emerging concern in hospitals. Mol Biol Rep 2021; 48:6987-6998. [PMID: 34460060 PMCID: PMC8403534 DOI: 10.1007/s11033-021-06690-6] [Citation(s) in RCA: 104] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/24/2021] [Indexed: 02/07/2023]
Abstract
Acinetobacter baumannii has become a major concern for scientific attention due to extensive antimicrobial resistance. This resistance causes an increase in mortality rate because strains resistant to antimicrobial agents are a major challenge for physicians and healthcare workers regarding the eradication of either hospital or community-based infections. These strains with emerging resistance are a serious issue for patients in the intensive care unit (ICU). Antibiotic resistance has increased because of the acquirement of mobile genetic elements such as transposons, plasmids, and integrons and causes the prevalence of multidrug resistance strains (MDR). In addition, an increase in carbapenem resistance, which is used as last line antibiotic treatment to eliminate infections with multidrug-resistant Gram-negative bacteria, is a major concern. Carbapenems resistant A. baumannii (CR-Ab) is a worldwide problem. Because these strains are often resistant to all other commonly used antibiotics. Therefore, pathogenic multi-drug resistance A. baumannii (MDR-Ab) associated infections become hard to eradicate. Plasmid-mediated resistance causes outbreaks of extensive drug-resistant. A. baumannii (XDR-Ab). In addition, recent outbreaks relating to livestock and community settings illustrate the existence of large MDR-Ab strain reservoirs within and outside hospital settings. The purpose of this review, proper monitoring, prevention, and treatment are required to control (XDR-Ab) infections. Attachment, the formation of biofilms and the secretion of toxins, and low activation of inflammatory responses are mechanisms used by pathogenic A. baumannii strain. This review will discuss some aspects associated with antibiotics resistance in A. baumannii as well as cover briefly phage therapy as an alternative therapeutic treatment.
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