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Wang X, Li J, Pan X. How micro-/nano-plastics influence the horizontal transfer of antibiotic resistance genes - A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 944:173881. [PMID: 38871331 DOI: 10.1016/j.scitotenv.2024.173881] [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: 05/06/2024] [Revised: 05/29/2024] [Accepted: 06/07/2024] [Indexed: 06/15/2024]
Abstract
Plastic debris such as microplastics (MPs) and nanoplastics (NPTs), along with antibiotic resistance genes (ARGs), are pervasive in the environment and are recognized as significant global health and ecological concerns. Micro-/nano-plastics (MNPs) have been demonstrated to favor the spread of ARGs by enhancing the frequency of horizontal gene transfer (HGT) through various pathways. This paper comprehensively and systematically reviews the current study with focus on the influence of plastics on the HGT of ARGs. The critical role of MNPs in the HGT of ARGs has been well illustrated in sewage sludge, livestock farms, constructed wetlands and landfill leachate. A summary of the performed HGT assay and the underlying mechanism of plastic-mediated transfer of ARGs is presented in the paper. MNPs could facilitate or inhibit HGT of ARGs, and their effects depend on the type, size, and concentration. This review provides a comprehensive insight into the effects of MNPs on the HGT of ARGs, and offers suggestions for further study. Further research should attempt to develop a standard HGT assay and focus on investigating the impact of different plastics, including the oligomers they released, under real environmental conditions on the HGT of ARGs.
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Affiliation(s)
- Xiaonan Wang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China; Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Hangzhou 310015, China; School of Environment Science and Spatial Information, China University of Mining and Technology, Xuzhou 221116, China; Shaoxing Research Institute of Zhejiang University of Technology, Shaoxing 312000, China
| | - Jiahao Li
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xiangliang Pan
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
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2
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Peng J, Wang D, He P, Wei P, Zhang L, Lan W, Zhang X, Guan J, Chen Y, Li W, Zheng Y, Li Y, Chen W, Zhao Z, Jiang L, Zhou L. Seasonal dynamics of antibiotic resistance genes and mobile genetic elements in a subtropical coastal ecosystem: Implications for environmental health risks. ENVIRONMENTAL RESEARCH 2024; 257:119298. [PMID: 38823616 DOI: 10.1016/j.envres.2024.119298] [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: 04/18/2024] [Revised: 05/23/2024] [Accepted: 05/30/2024] [Indexed: 06/03/2024]
Abstract
Antibiotic resistance poses a considerable global public health concern, leading to heightened rates of illness and mortality. However, the impact of seasonal variations and environmental factors on the health risks associated with antibiotic resistance genes (ARGs) and their assembly mechanisms is not fully understood. Based on metagenomic sequencing, this study investigated the antibiotic resistome, mobile genetic elements (MGEs), and microbiomes in a subtropical coastal ecosystem of the Beibu Gulf, China, over autumn and winter, and explored the factors influencing seasonal changes in ARG and MGE abundance and diversity. Results indicated that ARG abundance and diversity were higher in winter than in autumn, with beta-lactam and multidrug resistance genes being the most diverse and abundant, respectively. Similarly, MGE abundance and diversity increased in winter and were strongly correlated with ARGs. In contrast, more pronounced associations between microbial communities, especially archaea, and the antibiotic resistome were observed in autumn than in winter. The co-occurrence network identified multiple interactions between MGEs and various multidrug efflux pumps in winter, suggesting a potential for ARG dissemination. Multivariate correlation analyses and path modeling indicated that environmental factors driving microbial community changes predominantly influenced antibiotic resistome assembly in autumn, while the relative importance of MGEs increased significantly in winter. These findings suggest an elevated health risk associated with antimicrobial resistance in the Beibu Gulf during winter, attributed to the dissemination of ARGs by horizontal gene transfer. The observed seasonal variations highlight the dynamic nature of antibiotic resistance dissemination in coastal ecosystems, emphasizing the need for comprehensive surveillance and management measures to address the growing threat of antimicrobial resistance in vulnerable environments.
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Affiliation(s)
- Jinxia Peng
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Dapeng Wang
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Pingping He
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Pinyuan Wei
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Li Zhang
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Wenlu Lan
- Beibu Gulf Marine Ecological Environment Field Observation and Research Station of Guangxi, Marine Environmental Monitoring Centre of Guangxi, Beihai, 536000, China
| | - Xingzhi Zhang
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Junliang Guan
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Yongxian Chen
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Wei Li
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Yusi Zheng
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Yusen Li
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Wenjian Chen
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Zelong Zhao
- Liaoning Key Lab of Germplasm Improvement and Fine Seed Breeding of Marine Aquatic animals, Liaoning Ocean and Fisheries Science Research Institute, Dalian, 116023, China
| | - Linyuan Jiang
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China.
| | - Lei Zhou
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
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Chen MM, Zhang YQ, Cheng LC, Zhao FJ, Wang P. Photoaged nanoplastics with multienzyme-like activities significantly shape the horizontal transfer of antibiotic resistance genes. JOURNAL OF HAZARDOUS MATERIALS 2024; 475:134884. [PMID: 38878434 DOI: 10.1016/j.jhazmat.2024.134884] [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: 01/26/2024] [Revised: 03/17/2024] [Accepted: 06/10/2024] [Indexed: 06/27/2024]
Abstract
Nanoplastics (NPs), identified as emerging pollutants, pose a great risk to environment and global public health, exerting profound influences on the prevalence and dissemination of antibiotic resistance genes (ARGs). Despite evidence suggesting that nano-sized plastic particles can facilitate the horizontal gene transfer (HGT) of ARGs, it is imperative to explore strategies for inhibiting the transfer of ARGs. Currently, limited information exists regarding the characteristics of environmentally aged NPs and their impact on ARGs propagation. Herein, we investigated the impact of photo-aged NPs on the transfer of ARG-carrying plasmids into Escherichia coli (E. coli) cells. Following simulated sunlight irradiation, photo-aged nano-sized polystyrene plastics (PS NPs) exhibited multiple enzyme-like activities, including peroxidase (POD) and oxidase (OXD), leading to a burst of reactive oxygen species (ROS). At relatively low concentrations (0.1, 1 μg/mL), both pristine and aged PS NPs facilitated the transfer of pUC19 and pHSG396 plasmids within E. coli due to moderate ROS production and enhanced cell membrane permeability. Intriguingly, at relatively high concentrations (5, 10 μg/mL), aged PS NPs significantly suppressed plasmids transformation. The non-unidirectional impact of aged PS NPs involved the overproduction of ROS (•OH and •O2-) via nanozyme activity, directly degrading ARGs and damaging plasmid structure. Additionally, oxidative damage to bacteria resulted from the presence of much toxic free radicals, causing physical damage to cell membranes, reduction of the SOS response and restriction of adenosine-triphosphate (ATP) supply, ultimately leading to inactivation of recipient cells. This study unveils the intrinsic multienzyme-like activity of environmentally aged NPs, highlighting their potential to impede the transfer and dissemination of ARGs.
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Affiliation(s)
- Ming-Ming Chen
- Centre for Agriculture and Health, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China
| | - Yan-Qing Zhang
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Lu-Chen Cheng
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Fang-Jie Zhao
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Peng Wang
- Centre for Agriculture and Health, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
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Breidenstein A, Lamy A, Bader CP, Sun WS, Wanrooij PH, Berntsson RPA. PrgE: an OB-fold protein from plasmid pCF10 with striking differences to prototypical bacterial SSBs. Life Sci Alliance 2024; 7:e202402693. [PMID: 38811160 PMCID: PMC11137577 DOI: 10.26508/lsa.202402693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/08/2024] [Accepted: 05/08/2024] [Indexed: 05/31/2024] Open
Abstract
A major pathway for horizontal gene transfer is the transmission of DNA from donor to recipient cells via plasmid-encoded type IV secretion systems (T4SSs). Many conjugative plasmids encode for a single-stranded DNA-binding protein (SSB) together with their T4SS. Some of these SSBs have been suggested to aid in establishing the plasmid in the recipient cell, but for many, their function remains unclear. Here, we characterize PrgE, a proposed SSB from the Enterococcus faecalis plasmid pCF10. We show that PrgE is not essential for conjugation. Structurally, it has the characteristic OB-fold of SSBs, but it has very unusual DNA-binding properties. Our DNA-bound structure shows that PrgE binds ssDNA like beads on a string supported by its N-terminal tail. In vitro studies highlight the plasticity of PrgE oligomerization and confirm the importance of the N-terminus. Unlike other SSBs, PrgE binds both double- and single-stranded DNA equally well. This shows that PrgE has a quaternary assembly and DNA-binding properties that are very different from the prototypical bacterial SSB, but also different from eukaryotic SSBs.
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Affiliation(s)
- Annika Breidenstein
- https://ror.org/05kb8h459 Department of Medical Biochemistry and Biophysics, Umeå University, Umeå, Sweden
- https://ror.org/05kb8h459 Wallenberg Centre for Molecular Medicine and Umeå Centre for Microbial Research, Umeå University, Umeå, Sweden
| | - Anaïs Lamy
- https://ror.org/05kb8h459 Department of Medical Biochemistry and Biophysics, Umeå University, Umeå, Sweden
- https://ror.org/05kb8h459 Wallenberg Centre for Molecular Medicine and Umeå Centre for Microbial Research, Umeå University, Umeå, Sweden
| | - Cyrielle Pj Bader
- https://ror.org/05kb8h459 Department of Medical Biochemistry and Biophysics, Umeå University, Umeå, Sweden
| | - Wei-Sheng Sun
- https://ror.org/05kb8h459 Department of Medical Biochemistry and Biophysics, Umeå University, Umeå, Sweden
- https://ror.org/05kb8h459 Wallenberg Centre for Molecular Medicine and Umeå Centre for Microbial Research, Umeå University, Umeå, Sweden
| | - Paulina H Wanrooij
- https://ror.org/05kb8h459 Department of Medical Biochemistry and Biophysics, Umeå University, Umeå, Sweden
| | - Ronnie P-A Berntsson
- https://ror.org/05kb8h459 Department of Medical Biochemistry and Biophysics, Umeå University, Umeå, Sweden
- https://ror.org/05kb8h459 Wallenberg Centre for Molecular Medicine and Umeå Centre for Microbial Research, Umeå University, Umeå, Sweden
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5
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Fraiture MA, Gobbo A, Guillitte C, Marchesi U, Verginelli D, De Greve J, D'aes J, Vanneste K, Papazova N, Roosens NH. Pilot market surveillance of GMM contaminations in alpha-amylase food enzyme products: A detection strategy strengthened by a newly developed qPCR method targeting a GM Bacillus licheniformis producing alpha-amylase. FOOD CHEMISTRY. MOLECULAR SCIENCES 2024; 8:100186. [PMID: 38179151 PMCID: PMC10762378 DOI: 10.1016/j.fochms.2023.100186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/16/2023] [Accepted: 12/02/2023] [Indexed: 01/06/2024]
Abstract
Using high-throughput metagenomics on commercial microbial fermentation products, DNA from a new unauthorized genetically modified microorganism (GMM), namely the GM B. licheniformis strain producing alpha-amylase (GMM alpha-amylase2), was recently discovered and characterized. On this basis, a new qPCR method targeting an unnatural association of sequences specific to the GMM alpha-amylase2 strain was designed and developed in this study, allowing to strengthen the current GMM detection strategy. The performance of the newly developed qPCR method was assessed for its specificity and sensitivity to comply with the minimum performance requirements established by the European Network of GMO Laboratories for GMO analysis. Moreover, the transferability of the in house validated qPCR method was demonstrated. Finally, its applicability was confirmed by a pilot market surveillance of GMM contaminations conducted for the first time on 40 alpha-amylase food enzyme products labelled as containing alpha-amylase. This pilot market surveillance allowed also to highlight numerous contaminations with GMM alpha-amylase2, including frequent cross-contaminations with other GMM strains previously characterized. In addition, the presence of full-length AMR genes, raising health concerns, was also reported.
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Affiliation(s)
- Marie-Alice Fraiture
- Sciensano, Transversal Activities in Applied Genomics (TAG), rue Juliette Wytsman 14, 1050 Brussels, Belgium
| | - Andrea Gobbo
- Sciensano, Transversal Activities in Applied Genomics (TAG), rue Juliette Wytsman 14, 1050 Brussels, Belgium
| | - Chloé Guillitte
- Sciensano, Transversal Activities in Applied Genomics (TAG), rue Juliette Wytsman 14, 1050 Brussels, Belgium
| | - Ugo Marchesi
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M.Aleandri”, Unità Operativa Semplice a valenza Direzionale – Ricerca e controllo degli organismi geneticamente modificati, via Appia Nuova 1411, 00178 Roma, Italia
| | - Daniela Verginelli
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M.Aleandri”, Unità Operativa Semplice a valenza Direzionale – Ricerca e controllo degli organismi geneticamente modificati, via Appia Nuova 1411, 00178 Roma, Italia
| | - Joke De Greve
- Sciensano, Transversal Activities in Applied Genomics (TAG), rue Juliette Wytsman 14, 1050 Brussels, Belgium
| | - Jolien D'aes
- Sciensano, Transversal Activities in Applied Genomics (TAG), rue Juliette Wytsman 14, 1050 Brussels, Belgium
| | - Kevin Vanneste
- Sciensano, Transversal Activities in Applied Genomics (TAG), rue Juliette Wytsman 14, 1050 Brussels, Belgium
| | - Nina Papazova
- Sciensano, Transversal Activities in Applied Genomics (TAG), rue Juliette Wytsman 14, 1050 Brussels, Belgium
| | - Nancy H.C. Roosens
- Sciensano, Transversal Activities in Applied Genomics (TAG), rue Juliette Wytsman 14, 1050 Brussels, Belgium
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6
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Nowell RW, Rodriguez F, Hecox-Lea BJ, Mark Welch DB, Arkhipova IR, Barraclough TG, Wilson CG. Bdelloid rotifers deploy horizontally acquired biosynthetic genes against a fungal pathogen. Nat Commun 2024; 15:5787. [PMID: 39025839 PMCID: PMC11258130 DOI: 10.1038/s41467-024-49919-1] [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: 05/16/2023] [Accepted: 06/18/2024] [Indexed: 07/20/2024] Open
Abstract
Coevolutionary antagonism generates relentless selection that can favour genetic exchange, including transfer of antibiotic synthesis and resistance genes among bacteria, and sexual recombination of disease resistance alleles in eukaryotes. We report an unusual link between biological conflict and DNA transfer in bdelloid rotifers, microscopic animals whose genomes show elevated levels of horizontal gene transfer from non-metazoan taxa. When rotifers were challenged with a fungal pathogen, horizontally acquired genes were over twice as likely to be upregulated as other genes - a stronger enrichment than observed for abiotic stressors. Among hundreds of upregulated genes, the most markedly overrepresented were clusters resembling bacterial polyketide and nonribosomal peptide synthetases that produce antibiotics. Upregulation of these clusters in a pathogen-resistant rotifer species was nearly ten times stronger than in a susceptible species. By acquiring, domesticating, and expressing non-metazoan biosynthetic pathways, bdelloids may have evolved to resist natural enemies using antimicrobial mechanisms absent from other animals.
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Affiliation(s)
- Reuben W Nowell
- Department of Biology, University of Oxford, 11a Mansfield Road, Oxford, OX1 3SZ, UK
- Department of Life Sciences, Imperial College London; Silwood Park Campus, Buckhurst Road, Ascot, Berkshire, SL5 7PY, UK
- Institute of Ecology and Evolution, University of Edinburgh; Ashworth Laboratories, Charlotte Auerbach Road, Edinburgh, EH9 3FL, UK
- Biological and Environmental Sciences, University of Stirling, Stirling, FK9 4LA, UK
| | - Fernando Rodriguez
- Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Marine Biological Laboratory, Woods Hole, MA, USA
| | - Bette J Hecox-Lea
- Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Marine Biological Laboratory, Woods Hole, MA, USA
| | - David B Mark Welch
- Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Marine Biological Laboratory, Woods Hole, MA, USA
| | - Irina R Arkhipova
- Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Marine Biological Laboratory, Woods Hole, MA, USA
| | - Timothy G Barraclough
- Department of Biology, University of Oxford, 11a Mansfield Road, Oxford, OX1 3SZ, UK
- Department of Life Sciences, Imperial College London; Silwood Park Campus, Buckhurst Road, Ascot, Berkshire, SL5 7PY, UK
| | - Christopher G Wilson
- Department of Biology, University of Oxford, 11a Mansfield Road, Oxford, OX1 3SZ, UK.
- Department of Life Sciences, Imperial College London; Silwood Park Campus, Buckhurst Road, Ascot, Berkshire, SL5 7PY, UK.
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Dhariwal A, Rajar P, Salvadori G, Åmdal HA, Berild D, Saugstad OD, Fugelseth D, Greisen G, Dahle U, Haaland K, Petersen FC. Prolonged hospitalization signature and early antibiotic effects on the nasopharyngeal resistome in preterm infants. Nat Commun 2024; 15:6024. [PMID: 39019886 PMCID: PMC11255206 DOI: 10.1038/s41467-024-50433-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 07/10/2024] [Indexed: 07/19/2024] Open
Abstract
Respiratory pathogens, commonly colonizing nasopharynx, are among the leading causes of death due to antimicrobial resistance. Yet, antibiotic resistance determinants within nasopharyngeal microbial communities remain poorly understood. In this prospective cohort study, we investigate the nasopharynx resistome development in preterm infants, assess early antibiotic impact on its trajectory, and explore its association with clinical covariates using shotgun metagenomics. Our findings reveal widespread nasopharyngeal carriage of antibiotic resistance genes (ARGs) with resistomes undergoing transient changes, including increased ARG diversity, abundance, and composition alterations due to early antibiotic exposure. ARGs associated with the critical nosocomial pathogen Serratia marcescens persist up to 8-10 months of age, representing a long-lasting hospitalization signature. The nasopharyngeal resistome strongly correlates with microbiome composition, with inter-individual differences and postnatal age explaining most of the variation. Our report on the collateral effects of antibiotics and prolonged hospitalization underscores the urgency of further studies focused on this relatively unexplored reservoir of pathogens and ARGs.
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Affiliation(s)
- Achal Dhariwal
- Institute of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo, Norway
| | - Polona Rajar
- Institute of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo, Norway
- Department of Neonatal Intensive Care, Division of Pediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
| | - Gabriela Salvadori
- Institute of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo, Norway
| | - Heidi Aarø Åmdal
- Institute of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo, Norway
| | - Dag Berild
- Department of Infectious Diseases, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | | | - Drude Fugelseth
- Department of Neonatal Intensive Care, Division of Pediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Gorm Greisen
- Department of Neonatology, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Ulf Dahle
- Centre for Antimicrobial Resistance, Norwegian Institute of Public Health, Oslo, Norway
| | - Kirsti Haaland
- Department of Neonatal Intensive Care, Division of Pediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
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Shi J, Sun C, An T, Jiang C, Mei S, Lv B. Unraveling the effect of micro/nanoplastics on the occurrence and horizontal transfer of environmental antibiotic resistance genes: Advances, mechanisms and future prospects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174466. [PMID: 38964386 DOI: 10.1016/j.scitotenv.2024.174466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 06/27/2024] [Accepted: 07/01/2024] [Indexed: 07/06/2024]
Abstract
Microplastics can not only serve as vectors of antibiotic resistance genes (ARGs), but also they and even nanoplastics potentially affect the occurrence of ARGs in indigenous environmental microorganisms, which have aroused great concern for the development of antibiotic resistance. This article specifically reviews the effects of micro/nanoplastics (concentration, size, exposure time, chemical additives) and their interactions with other pollutants on environmental ARGs dissemination. The changes of horizontal genes transfer (HGT, i.e., conjugation, transformation and transduction) of ARGs caused by micro/nanoplastics were also summarized. Further, this review systematically sums up the mechanisms of micro/nanoplastics regulating HGT process of ARGs, including reactive oxygen species production, cell membrane permeability, transfer-related genes expression, extracellular polymeric substances production, and ARG donor-recipient adsorption/contaminants adsorption/biofilm formation. The underlying mechanisms in changes of bacterial communities induced by micro/nanoplastics were also discussed as it was an important factor for structuring the profile of ARGs in the actual environment, including causing environmental stress, providing carbon sources, forming biofilms, affecting pollutants distribution and environmental factors. This review contributes to a systematical understanding of the potential risks of antibiotic resistance dissemination caused by micro/nanoplastics and provokes thinking about perspectives for future research and the management of micro/nanoplastics and plastics.
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Affiliation(s)
- Jianhong Shi
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China
| | - Chaoli Sun
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China
| | - Tingxuan An
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China
| | - Changhai Jiang
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China
| | - Shenglong Mei
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China
| | - Baoyi Lv
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China; International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), Shanghai Maritime University, Shanghai 201306, China.
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Goss R, Adams VJ, Heinrich C, Grundon R, Linn-Pearl R, Scurrell E, Hamzianpour N. Progressive ulcerative keratitis in dogs in the United Kingdom: Microbial isolates, antimicrobial sensitivity, and resistance patterns. Vet Ophthalmol 2024; 27:330-346. [PMID: 37933885 DOI: 10.1111/vop.13160] [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: 06/17/2023] [Revised: 10/17/2023] [Accepted: 10/24/2023] [Indexed: 11/08/2023]
Abstract
OBJECTIVES The objective of the study was to identify bacterial pathogens and their antimicrobial sensitivity profile associated with cases of canine progressive ulcerative keratitis. MATERIALS AND METHODS Analysis of microbial culture and sensitivity results from dogs with progressive ulcerative keratitis presenting to a UK referral practice between December 2018 and August 2020. RESULTS Positive bacterial cultures were obtained from 80/148 (54%) of the canine ulcers sampled with 99 bacterial isolates cultured. Streptococcus canis (n = 29), Pseudomonas aeruginosa (n = 19), and Staphylococcus pseudintermedius (n = 16) were the most common isolates. Pseudomonas aeruginosa was more likely to be isolated whether the ulcer was clinically malacic at the time of sampling (OR = 10.1, p < .001). Ulcers treated prior to culture with fusidic acid were 7.6 times more likely to be positive than those treated with any other antimicrobial(s). Bacterial isolates demonstrated resistance against neomycin (85%), fusidic acid (78%), and tetracycline (68%). Conversely, isolates were most likely to be sensitive to gentamicin (88%), ofloxacin (77%), ciprofloxacin (73%), and chloramphenicol (64%). Antimicrobial combinations of chloramphenicol or gentamicin with a fluoroquinolone (ofloxacin or ciprofloxacin) or chloramphenicol combined with gentamicin were the most effective on in vitro analysis (over 90% susceptibility of all isolates). CONCLUSION The most common bacterial species associated with canine progressive ulcerative keratitis in a UK referral population were S. canis, P. aeruginosa, and S. pseudintermedius. Combination antimicrobial therapy is recommended pending culture and sensitivity results given the varied antimicrobial susceptibility profiles and significant bacterial in vitro resistance to antimicrobial monotherapy.
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Zhang M, Wang X, Deng X, Zheng S, Zhang W, He JZ, Yu X, Feng M, Ye C. Viable but non-culturable state formation and resuscitation of different antibiotic-resistant Escherichia coli induced by UV/chlorine. WATER RESEARCH 2024; 261:122011. [PMID: 38959654 DOI: 10.1016/j.watres.2024.122011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 06/12/2024] [Accepted: 06/26/2024] [Indexed: 07/05/2024]
Abstract
The presence of "viable but nonculturable" (VBNC) state and bacterial antibiotic resistance (BAR) both pose significant threats to the safety of drinking water. However, limited data was available that explicitly addressed the contribution of bacterial VBNC state in the maintenance and propagation of BAR. Here, the VBNC state induction and resuscitation of two antibiotic-resistant Escherichia coli K12 strains, one carrying multidrug-resistant plasmid (RP4 E. coli) and the other with chromosomal mutation (RIF E. coli) were characterized by subjecting them to different doses of UV/chlorine. The results illustrated that the induction, resuscitation, and associated mechanisms of VBNC ARB exhibit variations based on resistance determinants. RP4 E. coli exhibited a higher susceptibility to enter VBNC state compared to the RIF E. coli., and most VBNC state and resuscitated RP4 E. coli retained original antibiotic resistance. While, reverse mutation in the rpoB gene was observed in VBNC state and recovered RIF E. coli strains induced by high doses of UV/chlorine treatment, leading to the loss of rifampicin resistance. According to RT-qPCR results, ARGs conferring efflux pumps appeared to play a more significant role in the VBNC state formation of RP4 E. coli and the down-regulation of rpoS gene enhanced the speed at which this plasmid-carrying ARB entered into the dormant state. As to RIF E. coli, the induction of VBNC state was supposed to be regulated by the combination of general stress response, SOS response, stringent response, and TA system. Above all, this study highlights that ARB could become VBNC state during UV/chlorine treatments and retain, in some cases, their ability to spread ARGs. Importantly, compared with chromosomal mutation-mediated ARB, both VBNC and resuscitated state ARB that carries multidrug-resistant plasmids poses more serious health risks. Our study provides insights into the relationship between the VBNC state and the propagation of BAR in drinking water systems.
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Affiliation(s)
- Menglu Zhang
- College of Environmental and Resource Science, Fujian Normal University, Fuzhou 350117, China; Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350007, China; Fujian Sanming Forest Ecosystem National Observation and Research Station, Fujian Normal University, Sanming 365002, China; Fujian Key Laboratory of Pollution Control & Resource Reuse, Fuzhou 350117, China
| | - Xuansen Wang
- College of Environmental and Resource Science, Fujian Normal University, Fuzhou 350117, China; Fujian Key Laboratory of Pollution Control & Resource Reuse, Fuzhou 350117, China
| | - Xiaofeng Deng
- Fujian Minhuan Testing and Inspection Co., Fuzhou 350000, China
| | - Suxia Zheng
- College of Environmental and Resource Science, Fujian Normal University, Fuzhou 350117, China
| | - Weifang Zhang
- College of Environmental and Resource Science, Fujian Normal University, Fuzhou 350117, China; Fujian Key Laboratory of Pollution Control & Resource Reuse, Fuzhou 350117, China
| | - Ji-Zheng He
- Fujian Sanming Forest Ecosystem National Observation and Research Station, Fujian Normal University, Sanming 365002, China; Fujian Key Laboratory of Pollution Control & Resource Reuse, Fuzhou 350117, China
| | - Xin Yu
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment & Ecology, Xiamen University, Xiamen, 361102, China
| | - Mingbao Feng
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment & Ecology, Xiamen University, Xiamen, 361102, China
| | - Chengsong Ye
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment & Ecology, Xiamen University, Xiamen, 361102, China.
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11
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Zhang J, Zhao L, Wang W, Zhang Q, Wang XT, Xing DF, Ren NQ, Lee DJ, Chen C. Large language model for horizontal transfer of resistance gene: From resistance gene prevalence detection to plasmid conjugation rate evaluation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 931:172466. [PMID: 38626826 DOI: 10.1016/j.scitotenv.2024.172466] [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: 02/17/2024] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 05/07/2024]
Abstract
The burgeoning issue of plasmid-mediated resistance genes (ARGs) dissemination poses a significant threat to environmental integrity. However, the prediction of ARGs prevalence is overlooked, especially for emerging ARGs that are potentially evolving gene exchange hotspot. Here, we explored to classify plasmid or chromosome sequences and detect resistance gene prevalence by using DNABERT. Initially, the DNABERT fine-tuned in plasmid and chromosome sequences followed by multilayer perceptron (MLP) classifier could achieve 0.764 AUC (Area under curve) on external datasets across 23 genera, outperforming 0.02 AUC than traditional statistic-based model. Furthermore, Escherichia, Pseudomonas single genera based model were also be trained to explore its predict performance to ARGs prevalence detection. By integrating K-mer frequency attributes, our model could boost the performance to predict the prevalence of ARGs in an external dataset in Escherichia with 0.0281-0.0615 AUC and Pseudomonas with 0.0196-0.0928 AUC. Finally, we established a random forest model aimed at forecasting the relative conjugation transfer rate of plasmids with 0.7956 AUC, drawing on data from existing literature. It identifies the plasmid's repression status, cellular density, and temperature as the most important factors influencing transfer frequency. With these two models combined, they provide useful reference for quick and low-cost integrated evaluation of resistance gene transfer, accelerating the process of computer-assisted quantitative risk assessment of ARGs transfer in environmental field.
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Affiliation(s)
- Jiabin Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province 150090, China
| | - Lei Zhao
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province 150090, China
| | - Wei Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province 150090, China.
| | - Quan Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province 150090, China
| | - Xue-Ting Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province 150090, China
| | - De-Feng Xing
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province 150090, China
| | - Nan-Qi Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province 150090, China; Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China
| | - Duu-Jong Lee
- Department of Mechanical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Chuan Chen
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province 150090, China.
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12
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Grodner B, Shi H, Farchione O, Vill AC, Ntekas I, Diebold PJ, Wu DT, Chen CY, Kim DM, Zipfel WR, Brito IL, De Vlaminck I. Spatial mapping of mobile genetic elements and their bacterial hosts in complex microbiomes. Nat Microbiol 2024:10.1038/s41564-024-01735-5. [PMID: 38918467 DOI: 10.1038/s41564-024-01735-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 05/17/2024] [Indexed: 06/27/2024]
Abstract
The exchange of mobile genetic elements (MGEs) facilitates the spread of functional traits including antimicrobial resistance within bacterial communities. Tools to spatially map MGEs and identify their bacterial hosts in complex microbial communities are currently lacking, limiting our understanding of this process. Here we combined single-molecule DNA fluorescence in situ hybridization (FISH) with multiplexed ribosomal RNA-FISH to enable simultaneous visualization of both MGEs and bacterial taxa. We spatially mapped bacteriophage and antimicrobial resistance (AMR) plasmids and identified their host taxa in human oral biofilms. This revealed distinct clusters of AMR plasmids and prophage, coinciding with densely packed regions of host bacteria. Our data suggest spatial heterogeneity in bacterial taxa results in heterogeneous MGE distribution within the community, with MGE clusters resulting from horizontal gene transfer hotspots or expansion of MGE-carrying strains. Our approach can help advance the study of AMR and phage ecology in biofilms.
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Affiliation(s)
- Benjamin Grodner
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Hao Shi
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
- Kanvas Biosciences, Inc, Monmouth Junction, NJ, USA
| | - Owen Farchione
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Albert C Vill
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Ioannis Ntekas
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Peter J Diebold
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - David T Wu
- Division of Periodontology, Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, USA
| | - Chia-Yu Chen
- Division of Periodontology, Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, USA
| | - David M Kim
- Division of Periodontology, Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, USA
| | - Warren R Zipfel
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Ilana L Brito
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Iwijn De Vlaminck
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA.
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13
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Mohamed DS, Abd El-Baky RM, El-Mokhtar MA, Ghanem SK, Yahia R, Alqahtani AM, Abourehab MAS, Ahmed EF. Influence of selected non-antibiotic pharmaceuticals on antibiotic resistance gene transfer in Escherichia coli. PLoS One 2024; 19:e0304980. [PMID: 38905247 PMCID: PMC11192386 DOI: 10.1371/journal.pone.0304980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 05/20/2024] [Indexed: 06/23/2024] Open
Abstract
BACKGROUND Antibiotic resistance genes (ARGs) transfer rapidly among bacterial species all over the world contributing to the aggravation of antibiotic resistance crisis. Antibiotics at sub-inhibitory concentration induce horizontal gene transfer (HRT) between bacteria, especially through conjugation. The role of common non-antibiotic pharmaceuticals in the market in disseminating antibiotic resistance is not well studied. OBJECTIVES In this work, we indicated the effect of some commonly used non-antibiotic pharmaceuticals including antiemetic (metoclopramide HCl) and antispasmodics (hyoscine butyl bromide and tiemonium methyl sulfate) on the plasmid-mediated conjugal transfer of antibiotic resistance genes between pathogenic E. coli in the gastric intestinal tract (GIT). METHODS Broth microdilution assay was used to test the antibacterial activity of the tested non-antibiotic pharmaceuticals. A conjugation mating system was applied in presence of the studied non-antibiotic pharmaceuticals to test their effect on conjugal transfer frequency. Plasmid extraction and PCR were performed to confirm the conjugation process. Transmission electron microscopy (TEM) was used for imaging the effect of non-antibiotic pharmaceuticals on bacterial cells. RESULTS No antibacterial activity was reported for the used non-antibiotic pharmaceuticals. Plasmid-mediated conjugal transfer between isolates was induced by metoclopramide HCl but suppressed by hyoscine butyl bromide. Tiemonium methylsulfate slightly promoted conjugal transfer. Aggregation between cells and periplasmic bridges was clear in the case of metoclopramide HCl while in presence of hyoscine butyl bromide little affinity was observed. CONCLUSION This study indicates the contribution of non-antibiotic pharmaceuticals to the dissemination and evolution of antibiotic resistance at the community level. Metoclopramide HCl showed an important role in the spread of antibiotic resistance.
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Affiliation(s)
- Doaa Safwat Mohamed
- Microbiology & Immunology Department, Faculty of Pharmacy, Sohag University, Sohag Al Gadida City, Egypt
| | - Rehab Mahmoud Abd El-Baky
- Microbiology & Immunology Department, Faculty of Pharmacy, Minia University, Minia, Egypt
- Microbiology and Immunology Department, Faculty of Pharmacy, Deraya University, Minia, Egypt
| | - Mohamed Ahmed El-Mokhtar
- Medical Microbiology & Immunology Department, Faculty of Medicine, Assiut University, El Fateh, Egypt
- Gilbert & Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut, Lebanon
| | - Sahar K. Ghanem
- Pharmacology & Toxicology Department, Faculty of Pharmacy, Sohag University, Sohag Al Gadida City, Egypt
| | - Ramadan Yahia
- Microbiology and Immunology Department, Faculty of Pharmacy, Deraya University, Minia, Egypt
| | - Alaa M. Alqahtani
- Pharmaceutical Chemistry Department, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | | | - Eman Farouk Ahmed
- Microbiology & Immunology Department, Faculty of Pharmacy, Sohag University, Sohag Al Gadida City, Egypt
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14
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Gong W, Guo L, Huang C, Xie B, Jiang M, Zhao Y, Zhang H, Wu Y, Liang H. A systematic review of antibiotics and antibiotic resistance genes (ARGs) in mariculture wastewater: Antibiotics removal by microalgal-bacterial symbiotic system (MBSS), ARGs characterization on the metagenomic. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 930:172601. [PMID: 38657817 DOI: 10.1016/j.scitotenv.2024.172601] [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: 11/02/2023] [Revised: 04/10/2024] [Accepted: 04/17/2024] [Indexed: 04/26/2024]
Abstract
Antibiotic residues in mariculture wastewater seriously affect the aquatic environment. Antibiotic Resistance Genes (ARGs) produced under antibiotic stress flow through the environment and eventually enter the human body, seriously affecting human health. Microalgal-bacterial symbiotic system (MBSS) can remove antibiotics from mariculture and reduce the flow of ARGs into the environment. This review encapsulates the present scenario of mariculture wastewater, the removal mechanism of MBSS for antibiotics, and the biomolecular information under metagenomic assay. When confronted with antibiotics, there was a notable augmentation in the extracellular polymeric substances (EPS) content within MBSS, along with a concurrent elevation in the proportion of protein (PN) constituents within the EPS, which limits the entry of antibiotics into the cellular interior. Quorum sensing stimulates the microorganisms to produce biological responses (DNA synthesis - for adhesion) through signaling. Oxidative stress promotes gene expression (coupling, conjugation) to enhance horizontal gene transfer (HGT) in MBSS. The microbial community under metagenomic detection is dominated by aerobic bacteria in the bacterial-microalgal system. Compared to aerobic bacteria, anaerobic bacteria had the significant advantage of decreasing the distribution of ARGs. Overall, MBSS exhibits remarkable efficacy in mitigating the challenges posed by antibiotics and resistant genes from mariculture wastewater.
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Affiliation(s)
- Weijia Gong
- School of Engineering, Northeast Agricultural University, 600 Changjiang Street, Xiangfang District, Harbin 150030, PR China; State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, PR China.
| | - Lin Guo
- School of Engineering, Northeast Agricultural University, 600 Changjiang Street, Xiangfang District, Harbin 150030, PR China
| | - Chenxin Huang
- School of Engineering, Northeast Agricultural University, 600 Changjiang Street, Xiangfang District, Harbin 150030, PR China
| | - Binghan Xie
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai 264209, PR China.
| | - Mengmeng Jiang
- School of Engineering, Northeast Agricultural University, 600 Changjiang Street, Xiangfang District, Harbin 150030, PR China
| | - Yuzhou Zhao
- School of Engineering, Northeast Agricultural University, 600 Changjiang Street, Xiangfang District, Harbin 150030, PR China
| | - Haotian Zhang
- School of Engineering, Northeast Agricultural University, 600 Changjiang Street, Xiangfang District, Harbin 150030, PR China
| | - YuXuan Wu
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai 264209, PR China
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, PR China
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15
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Amábile-Cuevas CF, Lund-Zaina S. Non-Canonical Aspects of Antibiotics and Antibiotic Resistance. Antibiotics (Basel) 2024; 13:565. [PMID: 38927231 PMCID: PMC11200725 DOI: 10.3390/antibiotics13060565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 05/09/2024] [Accepted: 05/29/2024] [Indexed: 06/28/2024] Open
Abstract
The understanding of antibiotic resistance, one of the major health threats of our time, is mostly based on dated and incomplete notions, especially in clinical contexts. The "canonical" mechanisms of action and pharmacodynamics of antibiotics, as well as the methods used to assess their activity upon bacteria, have not changed in decades; the same applies to the definition, acquisition, selective pressures, and drivers of resistance. As a consequence, the strategies to improve antibiotic usage and overcome resistance have ultimately failed. This review gathers most of the "non-canonical" notions on antibiotics and resistance: from the alternative mechanisms of action of antibiotics and the limitations of susceptibility testing to the wide variety of selective pressures, lateral gene transfer mechanisms, ubiquity, and societal factors maintaining resistance. Only by having a "big picture" view of the problem can adequate strategies to harness resistance be devised. These strategies must be global, addressing the many aspects that drive the increasing prevalence of resistant bacteria aside from the clinical use of antibiotics.
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Affiliation(s)
| | - Sofia Lund-Zaina
- Department of Public Health, University of Southern Denmark, Campusvej 55, 5230 Odense, Denmark
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16
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Liu W, Xie WY, Liu HJ, Chen C, Chen SY, Jiang GF, Zhao FJ. Assessing intracellular and extracellular distribution of antibiotic resistance genes in the commercial organic fertilizers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172558. [PMID: 38643884 DOI: 10.1016/j.scitotenv.2024.172558] [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: 02/20/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/23/2024]
Abstract
Compost-based organic fertilizers often contain high levels of antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs). Previous studies focused on quantification of total ARGs and MGEs. For a more accurate risk assessment of the dissemination risk of antibiotic resistance, it is necessary to quantify the intracellular and extracellular distribution of ARGs and MGEs. In the present study, extracellular ARGs and MGEs (eARGs and eMGEs) and intracellular ARGs and MGEs (iARGs and iMGEs) were separately analyzed in 51 commercial composts derived from different raw materials by quantitative polymerase chain reaction (qPCR) and metagenomic sequencing. Results showed that eARGs and eMGEs accounted for 11-56% and 4-45% of the total absolute abundance of ARGs and MGEs, respectively. Comparable diversity, host composition and association with MGEs were observed between eARGs and iARGs. Contents of high-risk ARGs were similar between eARGs and iARGs, with high-risk ARGs in the two forms accounting for 6.7% and 8.2% of the total abundances, respectively. Twenty-four percent of the overall ARGs were present in plasmids, while 56.7% of potentially mobile ARGs were found to be associated with plasmids. Variation partitioning analysis, null model and neutral community model indicated that the compositions of both eARGs and iARGs were largely driven by deterministic mechanisms. These results provide important insights into the cellular distribution of ARGs in manure composts that should be paid with specific attention in risk assessment and management.
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Affiliation(s)
- Wei Liu
- Jiangsu Key Laboratory for Organic Waste Utilization, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Wan-Ying Xie
- Jiangsu Key Laboratory for Organic Waste Utilization, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
| | - Hong-Jun Liu
- Jiangsu Key Laboratory for Organic Waste Utilization, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Chuan Chen
- Jiangsu Key Laboratory for Organic Waste Utilization, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Shu-Yao Chen
- Jiangsu Key Laboratory for Organic Waste Utilization, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Gao-Fei Jiang
- Jiangsu Key Laboratory for Organic Waste Utilization, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Fang-Jie Zhao
- Jiangsu Key Laboratory for Organic Waste Utilization, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
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17
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Liu Y, Chu K, Hua Z, Li Q, Lu Y, Ye F, Dong Y, Li X. Dynamics of antibiotic resistance genes in the sediments of a water-diversion lake and its human exposure risk behaviour. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172563. [PMID: 38641096 DOI: 10.1016/j.scitotenv.2024.172563] [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: 02/11/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/21/2024]
Abstract
The dynamics and exposure risk behaviours of antibiotic resistance genes (ARGs) in the sediments of water-diversion lakes remain poorly understood. In this study, spatiotemporal investigations of ARG profiles in sediments targeting non-water (NWDP) and water diversion periods (WDP) were conducted in Luoma Lake, a typical water-diversion lake, and an innovative dynamics-based risk assessment framework was constructed to evaluate ARG exposure risks to local residents. ARGs in sediments were significantly more abundant in the WDP than in the NWDP, but there was no significant variation in their spatial distribution in either period. Moreover, the pattern of ARG dissemination in sediments was unchanged between the WDP and NWDP, with horizontal gene transfer (HGT) and vertical gene transfer (VGT) contributing to ARG dissemination in both periods. However, water diversion altered the pattern in lake water, with HGT and VGT in the NWDP but only HGT in the WDP, which were critical pathways for the dissemination of ARGs. The significantly lower ARG sediment-water partition coefficient in the WDP indicated that water diversion could shift the fate of ARGs and facilitate their aqueous partitioning. Risk assessment showed that all age groups faced a higher human exposure risk of ARGs (HERA) in the WDP than in the NWDP, with the 45-59 age group having the highest risk. Furthermore, HERA increased overall with the bacterial carrying capacity in the local environment and peaked when the carrying capacity reached three (NWDP) or four (WDP) orders of magnitude higher than the observed bacterial population. HGT and VGT promoted, whereas ODF covering gene mutation and loss mainly reduced HERA in the lake. As the carrying capacity increased, the relative contribution of ODF to HERA remained relatively stable, whereas the dominant mechanism of HERA development shifted from HGT to VGT.
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Affiliation(s)
- Yuanyuan Liu
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, PR China; Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, PR China
| | - Kejian Chu
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, PR China; Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, PR China.
| | - Zulin Hua
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, PR China; Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, PR China
| | - Qiming Li
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, PR China; Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, PR China
| | - Ying Lu
- Institute for Smart City of Chongqing University in Liyang, Liyang 213300, PR China
| | - Fuzhu Ye
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, PR China; Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, PR China
| | - Yueyang Dong
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, PR China; Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, PR China
| | - Xiaoqing Li
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, PR China; Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, PR China
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18
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Bava R, Castagna F, Lupia C, Poerio G, Liguori G, Lombardi R, Naturale MD, Mercuri C, Bulotta RM, Britti D, Palma E. Antimicrobial Resistance in Livestock: A Serious Threat to Public Health. Antibiotics (Basel) 2024; 13:551. [PMID: 38927217 PMCID: PMC11200672 DOI: 10.3390/antibiotics13060551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/04/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Antimicrobial resistance represents an alarming public health problem; its importance is related to the significant clinical implications (increased morbidity, mortality, disease duration, development of comorbidities, and epidemics), as well as its economic effects on the healthcare sector. In fact, therapeutic options are severely limited by the advent and spread of germs resistant to many antibiotics. The situation worldwide is worrying, especially in light of the prevalence of Gram-negative bacteria-Klebsiella pneumoniae and Acinetobacter baumannii-which are frequently isolated in hospital environments and, more specifically, in intensive care units. The problem is compounded by the ineffective treatment of infections by patients who often self-prescribe therapy. Resistant bacteria also show resistance to the latest generation antibiotics, such as carbapenems. In fact, superbacteria, grouped under the acronym extended-spectrum betalactamase (ESBL), are becoming common. Antibiotic resistance is also found in the livestock sector, with serious repercussions on animal production. In general, this phenomenon affects all members of the biosphere and can only be addressed by adopting a holistic "One Health" approach. In this literature overview, a stock is taken of what has been learned about antibiotic resistance, and suggestions are proposed to stem its advance.
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Affiliation(s)
- Roberto Bava
- Department of Health Sciences, University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy; (R.B.); (C.L.); (R.M.B.); (D.B.); (E.P.)
| | - Fabio Castagna
- Department of Health Sciences, University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy; (R.B.); (C.L.); (R.M.B.); (D.B.); (E.P.)
- Mediterranean Ethnobotanical Conservatory, Sersale (CZ), 88054 Catanzaro, Italy
| | - Carmine Lupia
- Department of Health Sciences, University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy; (R.B.); (C.L.); (R.M.B.); (D.B.); (E.P.)
- Mediterranean Ethnobotanical Conservatory, Sersale (CZ), 88054 Catanzaro, Italy
| | - Giusi Poerio
- ATS Val Padana, Via dei Toscani, 46100 Mantova, Italy;
| | | | - Renato Lombardi
- IRCCS Casa Sollievo Della Sofferenza, San Giovanni Rotondo (FG), 71013 Foggia, Italy;
| | - Maria Diana Naturale
- Ministry of Health, Directorate General for Health Programming, 00144 Rome, Italy;
| | - Caterina Mercuri
- Department of Experimental and Clinical Medicine, University “Magna Graecia”, 88100 Catanzaro, Italy;
| | - Rosa Maria Bulotta
- Department of Health Sciences, University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy; (R.B.); (C.L.); (R.M.B.); (D.B.); (E.P.)
| | - Domenico Britti
- Department of Health Sciences, University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy; (R.B.); (C.L.); (R.M.B.); (D.B.); (E.P.)
| | - Ernesto Palma
- Department of Health Sciences, University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy; (R.B.); (C.L.); (R.M.B.); (D.B.); (E.P.)
- Center for Pharmacological Research, Food Safety, High Tech and Health (IRC-FSH), University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy
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19
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Yaikhan T, Suwannasin S, Singkhamanan K, Chusri S, Pomwised R, Wonglapsuwan M, Surachat K. Genomic Characterization of Multidrug-Resistant Enterobacteriaceae Clinical Isolates from Southern Thailand Hospitals: Unraveling Antimicrobial Resistance and Virulence Mechanisms. Antibiotics (Basel) 2024; 13:531. [PMID: 38927197 PMCID: PMC11200480 DOI: 10.3390/antibiotics13060531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/01/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
The emergence and spread of antimicrobial resistance (AMR) among Enterobacteriaceae pose significant threats to global public health. In this study, we conducted a short-term surveillance effort in Southern Thailand hospitals to characterize the genomic diversity, AMR profiles, and virulence factors of Enterobacteriaceae strains. We identified 241 carbapenem-resistant Enterobacteriaceae, of which 12 were selected for whole-genome sequencing (WGS) and genome analysis. The strains included Proteus mirabilis, Serratia nevei, Klebsiella variicola, Klebsiella aerogenes, Klebsiella indica, Klebsiella grimontii, Phytobacter ursingii, Phytobacter palmae, Kosakonia spp., and Citrobacter freundii. The strains exhibited high levels of multidrug resistance, including resistance to carbapenem antibiotics. Whole-genome sequencing revealed a diverse array of antimicrobial resistance genes (ARGs), with strains carrying genes for ß-lactamase, efflux pumps, and resistance to other antibiotic classes. Additionally, stress response, metal tolerance, and virulence-associated genes were identified, highlighting the adaptability and pathogenic potential of these strains. A plasmid analysis identified several plasmid replicons, including IncA/C2, IncFIB(K), and Col440I, as well as several plasmids identical to those found globally, indicating the potential for the horizontal gene transfer of ARGs. Importantly, this study also identified a novel species of Kosakonia spp. PSU27, adding to the understanding of the genetic diversity and resistance mechanisms of Enterobacteriaceae in Southern Thailand. The results reported in this study highlight the critical importance of implementing effective antimicrobial management programs and developing innovative treatment approaches to urgently tackle AMR.
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Affiliation(s)
- Thunchanok Yaikhan
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand; (T.Y.); (S.S.); (K.S.)
| | - Sirikan Suwannasin
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand; (T.Y.); (S.S.); (K.S.)
| | - Kamonnut Singkhamanan
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand; (T.Y.); (S.S.); (K.S.)
| | - Sarunyou Chusri
- Division of Infectious Diseases, Department of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand
| | - Rattanaruji Pomwised
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand; (R.P.); (M.W.)
| | - Monwadee Wonglapsuwan
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand; (R.P.); (M.W.)
| | - Komwit Surachat
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand; (T.Y.); (S.S.); (K.S.)
- Translational Medicine Research Center, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand
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20
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Moussa J, Gargallo-Viola D, Thomsen LE. A novel high-throughput screening method for identifying compounds that inhibit plasmid conjugation. MethodsX 2024; 12:102740. [PMID: 38737486 PMCID: PMC11087957 DOI: 10.1016/j.mex.2024.102740] [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: 02/21/2024] [Accepted: 05/01/2024] [Indexed: 05/14/2024] Open
Abstract
Plasmid conjugation is an important contributing factor to the spread of antibiotic resistance among bacteria, posing a significant global health threat. Our method introduces an innovative high-throughput screening approach to identify compounds that inhibit or reduce conjugation, addressing the need for new strategies against the spread of antimicrobial resistance. Using Escherichia coli strains as donor and recipient, we screened 3500 compounds from a library provided by ABAC Therapeutics. Each 96 -well plate was loaded with 88 different compounds and bacterial cultures. Every plate also included negative and positive controls of conjugation. After an hour, cultures from wells were spotted on agar plates and assessed visually. Compounds that showed a visible effect on conjugation were retested. Six compounds targeting conjugation were found, showing promise for further analysis.
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Affiliation(s)
- Jennifer Moussa
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg, Denmark
| | | | - Line Elnif Thomsen
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg, Denmark
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21
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Pourrostami Niavol K, Bordoloi A, Suri R. An overview of the occurrence, impact of process parameters, and the fate of antibiotic resistance genes during anaerobic digestion processes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:41745-41774. [PMID: 38853230 PMCID: PMC11219439 DOI: 10.1007/s11356-024-33844-3] [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: 01/22/2024] [Accepted: 05/24/2024] [Indexed: 06/11/2024]
Abstract
Antibiotic resistance genes (ARGs) have emerged as a significant global health threat, contributing to fatalities worldwide. Wastewater treatment plants (WWTPs) and livestock farms serve as primary reservoirs for these genes due to the limited efficacy of existing treatment methods and microbial adaptation to environmental stressors. Anaerobic digestion (AD) stands as a prevalent biological treatment for managing sewage sludge and manure in these settings. Given the agricultural utility of AD digestate as biofertilizers, understanding ARGs' fate within AD processes is essential to devise effective mitigation strategies. However, understanding the impact of various factors on ARGs occurrence, dissemination, and fate remains limited. This review article explores various AD treatment parameters and correlates to various resistance mechanisms and hotspots of ARGs in the environment. It further evaluates the dissemination and occurrence of ARGs in AD feedstocks and provides a comprehensive understanding of the fate of ARGs in AD systems. This review explores the influence of key AD parameters such as feedstock properties, pretreatments, additives, and operational strategies on ARGs. Results show that properties such as high solid content and optimum co-digestion ratios can enhance ARG removal, while the presence of heavy metals, microplastics, and antibiotics could elevate ARG abundance. Also, operational enhancements, such as employing two-stage digestion, have shown promise in improving ARG removal. However, certain pretreatment methods, like thermal hydrolysis, may exhibit a rebounding effect on ARG levels. Overall, this review systematically addresses current challenges and offers future perspectives associated with the fate of ARGs in AD systems.
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Affiliation(s)
- Kasra Pourrostami Niavol
- Department of Civil and Environmental Engineering, Temple University, Philadelphia, PA, 19122, USA
| | - Achinta Bordoloi
- Department of Civil and Environmental Engineering, Temple University, Philadelphia, PA, 19122, USA
| | - Rominder Suri
- Department of Civil and Environmental Engineering, Temple University, Philadelphia, PA, 19122, USA.
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22
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Chen W, Zhang Y, Mi J. Assessing Antibiotic-Resistant Genes in University Dormitory Washing Machines. Microorganisms 2024; 12:1112. [PMID: 38930496 PMCID: PMC11205806 DOI: 10.3390/microorganisms12061112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
University dormitories represent densely populated environments, and washing machines are potential sites for the spread of bacteria and microbes. However, the extent of antibiotic resistance gene (ARG) variation in washing machines within university dormitories and their potential health risks are largely unknown. To disclose the occurrence of ARGs and antibiotic-resistant bacteria from university dormitories, we collected samples from washing machines in 10 dormitories and used metagenomic sequencing technology to determine microbial and ARG abundance. Our results showed abundant microbial diversity, with Proteobacteria being the dominant microorganism that harbors many ARGs. The majority of the existing ARGs were associated with antibiotic target alteration and efflux, conferring multidrug resistance. We identified tnpA and IS91 as the most abundant mobile genetic elements (MGEs) in washing machines and found that Micavibrio aeruginosavorus, Aquincola tertiaricarbonis, and Mycolicibacterium iranicum had high levels of ARGs. Our study highlights the potential transmission of pathogens from washing machines to humans and the surrounding environment. Pollution in washing machines poses a severe threat to public health and demands attention. Therefore, it is crucial to explore effective methods for reducing the reproduction of multidrug resistance.
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Affiliation(s)
- Wenbo Chen
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, China;
- Division of Bioscience, University College London, London WC1E 6BT, UK
| | - Yu Zhang
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China;
| | - Jiandui Mi
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, China;
- Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou 730046, China
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23
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Balaes T, Marandis CG, Mangalagiu V, Glod M, Mangalagiu II. New insides into chimeric and hybrid azines derivatives with antifungal activity. Future Med Chem 2024; 16:1163-1180. [PMID: 38916566 PMCID: PMC11216630 DOI: 10.1080/17568919.2024.2351288] [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: 02/22/2024] [Accepted: 04/25/2024] [Indexed: 06/26/2024] Open
Abstract
During the last decades, five or six member rings azaheterocycles compounds appear to be an extremely valuable source of antifungal agents. Their use seems to be a very attractive solution in antifungal therapy and to overcome antifungal resistance in agriculture. The present review highlights the main results obtained in the field of hybrid and chimeric azine (especially pyridine, quinoline, phenanthroline, bypyridine, naphthyridine and their fused derivatives) derivatives presented in scientific literature from the last 10 years, with emphasis on antifungal activity of the mentioned compounds. A special attention was played to hybrid and chimeric azole-azine class, having in view the high antifungal potential of azoles.
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Affiliation(s)
- Tiberius Balaes
- Alexandru Ioan Cuza University of Iasi, Department of Biology, Faculty of Biology, 20A Carol 1st Bvd, Iasi, 700505, Romania
| | | | - Violeta Mangalagiu
- Alexandru Ioan Cuza University of Iasi, Institute of Interdisciplinary Research-CERNESIM center, 11 Carol I, Iasi700506, Romania
- Stefan Cel Mare University of Suceava, Faculty of Food Engineering, 13 Universitatii Str., Suceava720229, Romania
| | - Mihai Glod
- Grigore T. Popa University of Medicine & Pharmacy, Clinical Hospital CF Iasi, Universității 16 Str., Iasi700115, Romania
| | - Ionel I Mangalagiu
- Alexandru Ioan Cuza University of Iasi, Faculty of Chemistry, 11 Carol 1st Bvd, Iasi700506, Romania
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24
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Peng X, Zhou J, Lan Z, Tan R, Chen T, Shi D, Li H, Yang Z, Zhou S, Jin M, Li JW, Yang D. Carbonaceous particulate matter promotes the horizontal transfer of antibiotic resistance genes. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2024; 26:915-927. [PMID: 38618896 DOI: 10.1039/d3em00547j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
There is growing concern about the transfer of antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARGs) in airborne particulate matter. In this study, we investigated the effects of various types of carbonaceous particulate matter (CPM) on the transfer of ARGs in vitro. The results showed that CPM promoted the transfer of ARGs, which was related to the concentration and particle size. Compared with the control group, the transfer frequency was 95.5, 74.7, 65.4, 14.7, and 3.8 times higher in G (graphene), CB (carbon black), NGP (nanographite powder), GP1.6 (graphite powder 1.6 micron), and GP45 (graphite powder 45 micron) groups, respectively. Moreover, the transfer frequency gradually increased with the increase in CPM concentration, while there was a negative relationship between the CPM particle size and conjugative transfer frequency. In addition, the results showed that CPM could promote the transfer of ARGs by increasing ROS, as well as activating the SOS response and expression of conjugative transfer-related genes (trbBp, trfAp, korA, kroB, and trbA). These findings are indicative of the potential risk of CPM for the transfer of ARGs in the environment, enriching our understanding of environmental pollution and further raising awareness of environmental protection.
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Affiliation(s)
- Xuexia Peng
- Tianjin Institute of Environmental and Operational Medicine, Key Laboratory of Risk Assessment and Control for Environment & Food Safety, No. 1 Dali Road, Tianjin 300050, P. R. China.
| | - Jiake Zhou
- Tianjin Institute of Environmental and Operational Medicine, Key Laboratory of Risk Assessment and Control for Environment & Food Safety, No. 1 Dali Road, Tianjin 300050, P. R. China.
| | - Zishu Lan
- Tianjin Institute of Environmental and Operational Medicine, Key Laboratory of Risk Assessment and Control for Environment & Food Safety, No. 1 Dali Road, Tianjin 300050, P. R. China.
| | - Rong Tan
- Tianjin Institute of Environmental and Operational Medicine, Key Laboratory of Risk Assessment and Control for Environment & Food Safety, No. 1 Dali Road, Tianjin 300050, P. R. China.
| | - Tianjiao Chen
- Tianjin Institute of Environmental and Operational Medicine, Key Laboratory of Risk Assessment and Control for Environment & Food Safety, No. 1 Dali Road, Tianjin 300050, P. R. China.
| | - Danyang Shi
- Tianjin Institute of Environmental and Operational Medicine, Key Laboratory of Risk Assessment and Control for Environment & Food Safety, No. 1 Dali Road, Tianjin 300050, P. R. China.
| | - Haibei Li
- Tianjin Institute of Environmental and Operational Medicine, Key Laboratory of Risk Assessment and Control for Environment & Food Safety, No. 1 Dali Road, Tianjin 300050, P. R. China.
| | - Zhongwei Yang
- Tianjin Institute of Environmental and Operational Medicine, Key Laboratory of Risk Assessment and Control for Environment & Food Safety, No. 1 Dali Road, Tianjin 300050, P. R. China.
| | - Shuqing Zhou
- Tianjin Institute of Environmental and Operational Medicine, Key Laboratory of Risk Assessment and Control for Environment & Food Safety, No. 1 Dali Road, Tianjin 300050, P. R. China.
| | - Min Jin
- Tianjin Institute of Environmental and Operational Medicine, Key Laboratory of Risk Assessment and Control for Environment & Food Safety, No. 1 Dali Road, Tianjin 300050, P. R. China.
| | - Jun-Wen Li
- Tianjin Institute of Environmental and Operational Medicine, Key Laboratory of Risk Assessment and Control for Environment & Food Safety, No. 1 Dali Road, Tianjin 300050, P. R. China.
| | - Dong Yang
- Tianjin Institute of Environmental and Operational Medicine, Key Laboratory of Risk Assessment and Control for Environment & Food Safety, No. 1 Dali Road, Tianjin 300050, P. R. China.
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25
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Cochran JP, Zhang L, Parrott BB, Seaman JC. Plasmid size determines adsorption to clay and breakthrough in a saturated sand column. Heliyon 2024; 10:e29679. [PMID: 38707295 PMCID: PMC11066139 DOI: 10.1016/j.heliyon.2024.e29679] [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: 08/04/2023] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 05/07/2024] Open
Abstract
Horizontal gene transfer (HGT) is a major factor in the spread of antibiotic resistant genes (ARG). Transformation, one mode of HGT, involves the acquisition and expression of extracellular DNA (eDNA). eDNA in soils is degraded rapidly by extracellular nucleases. However, if bound to a clay particle, eDNA can persist for long periods of time without losing its transformation ability. To better understand the mechanism of eDNA persistence in soil, this experiment assessed the effects of 1) clay mineralogy, 2) mixed salt solution, 3) plasmid size on DNA adsorption to clay and 4) breakthrough behavior of three differently sized plasmids in an environmentally relevant solution. Batch test methods were used to determine adsorption trends of three differently sized DNA plasmids, pUC19, pBR322, and pTYB21, to several pure clay minerals, goethite (α-FeOOH), illite, and kaolinite, and one environmental soil sample. Results show not all sorbents have equal adsorption capacity based on surface area with adsorption capacities decreasing from goethite > illite = kaolinite > bulk soil, and low ionic strength solutions will likely not significantly alter sorption trends. Additionally, plasmid DNA size (i.e., length) was shown to be a significant predictor of adsorption efficiency and that size affects DNA breakthrough, with breakthroughs occurring later with larger plasmids. Given that DNA persistence is linked to its adsorption to soil constituents and breakthrough, eDNA size is likely an important contributor to the spread of ARG within natural microbial communities.
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Affiliation(s)
- Jarad P. Cochran
- Savannah River Ecology Laboratory, Aiken, SC, United States
- Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, United States
| | - Liyun Zhang
- Savannah River Ecology Laboratory, Aiken, SC, United States
- Crops and Soil Sciences, University of Georgia, Athens, GA, United States
| | - Benjamin B. Parrott
- Savannah River Ecology Laboratory, Aiken, SC, United States
- Odum School of Ecology, University of Georgia, Athens, GA, United States
| | - John C. Seaman
- Savannah River Ecology Laboratory, Aiken, SC, United States
- Crops and Soil Sciences, University of Georgia, Athens, GA, United States
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26
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Nadella RK, Panda SK, Kumar A, Uchoi D, Kishore P, Badireddy MR, Kuricheti PP, Raman RP, Mothadaka MP. AMR Threat Perception Assessment of Heterotrophic Bacteria From Shrimp Aquaculture Through Epidemiological Cut off Values. J AOAC Int 2024; 107:479-486. [PMID: 38366611 DOI: 10.1093/jaoacint/qsae011] [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: 11/30/2023] [Revised: 01/28/2024] [Accepted: 02/06/2024] [Indexed: 02/18/2024]
Abstract
BACKGROUND Emergence and dissemination of antibiotic resistance is one of the major risks associated with the rampant usage of antibiotics in food-producing animals including aquaculture. OBJECTIVE To determine Epidemiological Cut-OFF (ECOFF) values of heterotrophic bacterial populations from shrimp culture environments against five different antibiotics. METHODS In this present study, bacterial samples were isolated from Penaeus vannamei culture environment in different locations of Andhra Pradesh, which is the aquaculture hub of India. The bacterial isolates were assessed for antibiotic resistance towards five antibiotics belonging to different classes (oxytetracycline, chloramphenicol, erythromycin, ciprofloxacin, and co-trimoxazole) by the disc diffusion method. Determination of Epidemiological Cut-OFF (ECOFF) values and analysis by employing normalized resistance interpretation (NRI) was carried out. RESULTS The most dominant bacterial populations from shrimp culture were Vibrio spp. (pathogenic bacteria) followed by Bacillus spp. (probiotic bacteria). The bacterial isolates showed highest resistance towards oxytetracycline (overall 23.38%) and in location L6 (59.4%) followed by co-trimoxazole (31.1%). ECOFF values calculated by employing NRI showed that the disc diffusion data were distributed in a normalized manner. The maximum ECOFF value was obtained for ciprofloxacin (23.32 mm), while the minimum value was observed for oxytetracycline (9.05 mm). The antibiotic resistant phenotypes showed that the majority of the heterotrophic bacterial isolates (>60%) belonged to the non-wild type phenotype and primarily towards oxytetracycline (90%). CONCLUSION The presence of non-wild antibiotic-resistant phenotypes of heterotrophic bacterial populations (which include not only pathogenic bacteria but also probiotic bacteria) indicates that shrimp culture ponds may be a reservoir for drug-resistant bacteria and there is a greater risk associated with transmission of resistant genes across bacterial flora. HIGHLIGHTS NRI analysis of antibiotic disc diffusion data of heterotrophic bacterial populations in shrimp aquaculture environments revealed that majority of them belonged to non-wild type (90%) paticularly to oxytetracycline in comparison to other studied antibiotics (chloramphenicol, erythromycin, ciprofloxacin and co-trimoxazole).
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Affiliation(s)
- Ranjit Kumar Nadella
- ICAR-Central Institute of Fisheries Technology (ICAR-CIFT), Quality Assurance and Management Division, Willingdon Island, Matsyapuri P.O, Cochin, Kerala 682029, India
| | - Satyen Kumar Panda
- QA Advisor, Food Safety Standards Authority of India (FSSAI), FDA Bhawan, Kotla Rd near Bal Bhawan, New Delhi 110002, India
| | - Anuj Kumar
- ICAR-Indian Institute of Wheat and Barley Research (ICAR-IIWBR), Karnal, Haryana 132001, India
| | - Devananda Uchoi
- ICAR-Central Institute of Fisheries Technology (ICAR-CIFT), Quality Assurance and Management Division, Willingdon Island, Matsyapuri P.O, Cochin, Kerala 682029, India
| | - Pankaj Kishore
- ICAR-Central Institute of Fisheries Technology (ICAR-CIFT), Quality Assurance and Management Division, Willingdon Island, Matsyapuri P.O, Cochin, Kerala 682029, India
| | - Madhusudana Rao Badireddy
- ICAR-Central Institute of Fisheries Technology (ICAR-CIFT), Visakhapatnam Research Centre, Visakhapatnam, Andhra Pradesh 530003, India
| | - Pani Prasad Kuricheti
- ICAR-Central Institute of Fisheries Education (ICAR-CIFE), Aquatic Environment and Health Management Division, Versova, Mumbai, Maharashtra 400061, India
| | - Ram Prakash Raman
- ICAR-Central Institute of Fisheries Education (ICAR-CIFE), Aquatic Environment and Health Management Division, Versova, Mumbai, Maharashtra 400061, India
| | - Mukteswar Prasad Mothadaka
- ICAR-Central Institute of Fisheries Technology (ICAR-CIFT), Visakhapatnam Research Centre, Visakhapatnam, Andhra Pradesh 530003, India
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27
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Yang S, Cao J, Zhao C, Zhang X, Li C, Wang S, Yang X, Qiu Z, Li C, Wang J, Xue B, Shen Z. Cylindrospermopsin enhances the conjugative transfer of plasmid-mediated multi-antibiotic resistance genes through glutathione biosynthesis inhibition. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 276:116288. [PMID: 38581909 DOI: 10.1016/j.ecoenv.2024.116288] [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: 01/30/2024] [Revised: 03/29/2024] [Accepted: 03/31/2024] [Indexed: 04/08/2024]
Abstract
Cylindrospermopsin (CYN), a cyanobacterial toxin, has been detected in the global water environment. However, information concerning the potential environmental risk of CYN is limited, since the majority of previous studies have mainly focused on the adverse health effects of CYN through contaminated drinking water. The present study reported that CYN at environmentally relevant levels (0.1-100 μg/L) can significantly enhance the conjugative transfer of RP4 plasmid in Escherichia coli genera, wherein application of 10 μg/L of CYN led to maximum fold change of ∼6.5- fold at 16 h of exposure. Meanwhile, evaluation of underlying mechanisms revealed that environmental concentration of CYN exposure could increase oxidative stress in the bacterial cells, resulting in ROS overproduction. In turn, this led to an upregulation of antioxidant enzyme-related genes to avoid ROS attack. Further, inhibition of the synthesis of glutathione (GSH) was also detected, which led to the rapid depletion of GSH in cells and thus triggered the SOS response and promoted the conjugative transfer process. Increase in cell membrane permeability, upregulation of expression of genes related to pilus generation, ATP synthesis, and RP4 gene expression were also observed. These results highlight the potential impact on the spread of antimicrobial resistance in water environments.
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Affiliation(s)
- Shuran Yang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Jinrui Cao
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Chen Zhao
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Xi Zhang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Chenyu Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Shang Wang
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Xiaobo Yang
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Zhigang Qiu
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Chao Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Jingfeng Wang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Bin Xue
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China.
| | - Zhiqiang Shen
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China.
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28
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Negatu DA, Aragaw WW, Dartois V, Dick T. A pairwise approach to revitalize β-lactams for the treatment of TB. Antimicrob Agents Chemother 2024:e0003424. [PMID: 38690896 DOI: 10.1128/aac.00034-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 04/07/2024] [Indexed: 05/03/2024] Open
Abstract
The dual β-lactam approach has been successfully applied to overcome target redundancy in nontuberculous mycobacteria. Surprisingly, this approach has not been leveraged for Mycobacterium tuberculosis, despite the high conservation of peptidoglycan synthesis. Through a comprehensive screen of oral β-lactam pairs, we have discovered that cefuroxime strongly potentiates the bactericidal activity of tebipenem and sulopenem-advanced clinical candidates-and amoxicillin, at concentrations achieved clinically. β-lactam pairs thus have the potential to reduce TB treatment duration.
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Affiliation(s)
- Dereje A Negatu
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, New Jersey, USA
- Center for Innovative Drug Development and Therapeutic Trials for Africa (CDT-Africa), Addis Ababa University, Addis Ababa, Ethiopia
| | - Wassihun Wedajo Aragaw
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, New Jersey, USA
| | - Véronique Dartois
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, New Jersey, USA
- Department of Medical Sciences, Hackensack Meridian School of Medicine, Nutley, New Jersey, USA
| | - Thomas Dick
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, New Jersey, USA
- Department of Medical Sciences, Hackensack Meridian School of Medicine, Nutley, New Jersey, USA
- Department of Microbiology and Immunology, Georgetown University, Washington, DC, USA
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29
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Khan MAS, Islam Z, Shah ST, Rahman SR. Characterization of biofilm formation and multi-drug resistance among Pseudomonas aeruginosa isolated from hospital wastewater in Dhaka, Bangladesh. JOURNAL OF WATER AND HEALTH 2024; 22:825-834. [PMID: 38822462 DOI: 10.2166/wh.2024.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 04/09/2024] [Indexed: 06/03/2024]
Abstract
Hospital wastewater has been identified as a hotspot for the emergence and transmission of multidrug-resistant (MDR) pathogens that present a serious threat to public health. Therefore, we investigated the current status of antibiotic resistance as well as the phenotypic and genotypic basis of biofilm formation in Pseudomonas aeruginosa from hospital wastewater in Dhaka, Bangladesh. The disc diffusion method and the crystal violet assay were performed to characterize antimicrobial resistance and biofilm formation, respectively. Biofilm and integron-associated genes were amplified by the polymerase chain reaction. Isolates exhibited varying degrees of resistance to different antibiotics, in which >80% of isolates showed sensitivity to meropenem, amikacin, and gentamicin. The results indicated that 93.82% of isolates were MDR and 71 out of 76 MDR isolates showed biofilm formation activities. We observed the high prevalence of biofilm-related genes, in which algD+pelF+pslD+ (82.7%) was found to be the prevalent biofilm genotypic pattern. Sixteen isolates (19.75%) possessed class 1 integron (int1) genes. However, statistical analysis revealed no significant association between biofilm formation and multidrug resistance (χ2 = 0.35, P = 0.55). Taken together, hospital wastewater in Dhaka city may act as a reservoir for MDR and biofilm-forming P. aeruginosa, and therefore, the adequate treatment of wastewater is recommended to reduce the occurrence of outbreaks.
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Affiliation(s)
- Md Abu Sayem Khan
- Department of Microbiology, University of Dhaka, Dhaka 1000, Bangladesh; Md Abu Sayem Khan and Zahidul Islam contributed equally to this study
| | - Zahidul Islam
- Department of Microbiology, University of Dhaka, Dhaka 1000, Bangladesh; Md Abu Sayem Khan and Zahidul Islam contributed equally to this study
| | - Sm Tanjil Shah
- Department of Microbiology, University of Dhaka, Dhaka 1000, Bangladesh
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30
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Xu Z, Hu S, Zhao D, Xiong J, Li C, Ma Y, Li S, Huang B, Pan X. Molybdenum disulfide nanosheets promote the plasmid-mediated conjugative transfer of antibiotic resistance genes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 358:120827. [PMID: 38608575 DOI: 10.1016/j.jenvman.2024.120827] [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: 12/09/2023] [Revised: 03/17/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024]
Abstract
The environmental safety of nanoscale molybdenum disulfide (MoS2) has attracted considerable attention, but its influence on the horizontal migration of antibiotic resistance genes and the ecological risks entailed have not been reported. This study addressed the influence of exposure to MoS2 at different concentrations up to 100 mg/L on the conjugative transfer of antibiotic resistance genes carried by RP4 plasmids with two strains of Escherichia coli. As a result, MoS2 facilitated RP4 plasmid-mediated conjugative transfer in a dose-dependent manner. The conjugation of RP4 plasmids was enhanced as much as 7-fold. The promoting effect is mainly attributable to increased membrane permeability, oxidative stress induced by reactive oxygen species, changes in extracellular polymer secretion and differential expression of the genes involved in horizontal gene transfer. The data highlight the distinct dose dependence of the conjugative transfer of antibiotic resistance genes and the need to improve awareness of the ecological and health risks of nanoscale transition metal dichalcogenides.
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Affiliation(s)
- Zhixiang Xu
- Faculty of Environmental Science & Engineering, Kunming University of Science and Technology, Kunming 650500, China.
| | - Siyuan Hu
- Faculty of Environmental Science & Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Dimeng Zhao
- Faculty of Environmental Science & Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Jinrui Xiong
- Faculty of Environmental Science & Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Caiqing Li
- Faculty of Environmental Science & Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Yitao Ma
- Faculty of Environmental Science & Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Siyuan Li
- Faculty of Environmental Science & Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Bin Huang
- Faculty of Environmental Science & Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Xuejun Pan
- Faculty of Environmental Science & Engineering, Kunming University of Science and Technology, Kunming 650500, China.
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31
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Dahlquist-Axe G, Standeven FJ, Speller CF, Tedder A, Meehan CJ. Inferring diet, disease and antibiotic resistance from ancient human oral microbiomes. Microb Genom 2024; 10:001251. [PMID: 38739117 PMCID: PMC11165619 DOI: 10.1099/mgen.0.001251] [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: 11/20/2023] [Accepted: 04/24/2024] [Indexed: 05/14/2024] Open
Abstract
The interaction between a host and its microbiome is an area of intense study. For the human host, it is known that the various body-site-associated microbiomes impact heavily on health and disease states. For instance, the oral microbiome is a source of various pathogens and potential antibiotic resistance gene pools. The effect of historical changes to the human host and environment to the associated microbiome, however, has been less well explored. In this review, we characterize several historical and prehistoric events which are considered to have impacted the oral environment and therefore the bacterial communities residing within it. The link between evolutionary changes to the oral microbiota and the significant societal and behavioural changes occurring during the pre-Neolithic, Agricultural Revolution, Industrial Revolution and Antibiotic Era is outlined. While previous studies suggest the functional profile of these communities may have shifted over the centuries, there is currently a gap in knowledge that needs to be filled. Biomolecular archaeological evidence of innate antimicrobial resistance within the oral microbiome shows an increase in the abundance of antimicrobial resistance genes since the advent and widespread use of antibiotics in the modern era. Nevertheless, a lack of research into the prevalence and evolution of antimicrobial resistance within the oral microbiome throughout history hinders our ability to combat antimicrobial resistance in the modern era.
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Affiliation(s)
- Gwyn Dahlquist-Axe
- School of Chemistry and Biosciences, University of Bradford, Bradford, UK
| | | | - Camilla F. Speller
- Department of Anthropology, University of British Columbia, Vancouver, Canada
| | - Andrew Tedder
- School of Chemistry and Biosciences, University of Bradford, Bradford, UK
| | - Conor J. Meehan
- Department of Biosciences, Nottingham Trent University, Nottingham, UK
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32
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Langelier C, Chu V, Glascock A, Donnell D, Grabow C, Brown C, Ward R, Love C, Kalantar K, Cohen S, Cannon C, Woodworth M, Kelley C, Celum C, Luetkemeyer A. Doxycycline post-exposure prophylaxis for sexually transmitted infections impacts the gut antimicrobial resistome. RESEARCH SQUARE 2024:rs.3.rs-4243341. [PMID: 38699315 PMCID: PMC11065088 DOI: 10.21203/rs.3.rs-4243341/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
Doxycycline post-exposure prophylaxis (doxy-PEP) reduces bacterial sexually transmitted infections (STIs) among men who have sex with men and transgender women. While poised for widespread clinical implementation, the impact of doxy-PEP on antimicrobial resistance remains a primary concern as its effects on the gut microbiome and resistome, or the antimicrobial resistance genes (ARGs) present in the gut microbiome, are unknown. To investigate these effects, we studied participants from a randomized clinical trial who either received doxy-PEP as a one-time doxycycline 200 mg taken after condomless sex (DP arm, n = 100) or standard of care treatment (SOC arm, n = 50). From self-collected rectal swabs at enrollment (day-0) and after 6 months (month-6), we performed metagenomic DNA sequencing (DNA-seq) or metatranscriptomic RNA sequencing (RNA-seq). DNA-seq data was analyzable from 127 samples derived from 89 participants, and RNA-seq data from 86 samples derived from 70 participants. We compared the bacterial microbiome and resistome between the two study arms and over time. Tetracycline ARGs were detected in all day-0 DNA-seq samples and 85% of day-0 RNA-seq samples. The proportional mass of tetracycline ARGs in the resistome increased between day-0 and month-6 in DP participants from 46-51% in the metagenome (p = 0.02) and 4-15% in the metatranscriptome (p < 0.01), but no changes in other ARG classes were observed. Exposure to a higher number of doxycycline doses correlated with proportional enrichment of tetracycline ARGs in the metagenome (Spearman's ρ = 0.23, p < 0.01) and metatranscriptome (Spearman's ρ = 0.55, p < 0.01). Bacterial microbiome alpha diversity, beta diversity, and total bacterial mass did not differ between day-0 and month-6 samples from DP participants when assessed by either DNA-seq or RNA-seq. In an abundance-based correlation analysis, we observed an increase over time in the strength of the correlation between tetracycline ARGs and specific bacterial taxa, including some common human pathogens. In sum, doxy-PEP use over a 6-month period was associated with an increase in the proportion of tetracycline ARGs comprising the gut resistome, and an increase in the expression of tetracycline ARGs. Notably, doxy-PEP did not significantly alter alpha diversity or taxonomic composition of the gut microbiome, and did not demonstrate significant increases in non-tetracycline ARG classes. Further studies and population level surveillance are needed to understand the implications of these findings as doxy-PEP is implemented as a public health strategy.
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33
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Ngema SS, Madoroba E. A Mini-Review of Anti-Listerial Compounds from Marine Actinobacteria (1990-2023). Antibiotics (Basel) 2024; 13:362. [PMID: 38667038 PMCID: PMC11047329 DOI: 10.3390/antibiotics13040362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 03/17/2024] [Accepted: 04/04/2024] [Indexed: 04/29/2024] Open
Abstract
Among the foodborne illnesses, listeriosis has the third highest case mortality rate (20-30% or higher). Emerging drug-resistant strains of Listeria monocytogenes, a causative bacterium of listeriosis, exacerbate the seriousness of this public health concern. Novel anti-Listerial compounds are therefore needed to combat this challenge. In recent years, marine actinobacteria have come to be regarded as a promising source of novel antimicrobials. Hence, our aim was to provide a narrative of the available literature and discuss trends regarding bioprospecting marine actinobacteria for new anti-Listerial compounds. Four databases were searched for the review: Academic Search Ultimate, Google Scholar, ScienceDirect, and South African Thesis and Dissertations. The search was restricted to peer-reviewed full-text manuscripts that discussed marine actinobacteria as a source of antimicrobials and were written in English from 1990 to December 2023. In total, for the past three decades (1990-December 2023), only 23 compounds from marine actinobacteria have been tested for their anti-Listerial potential. Out of the 23 reported compounds, only 2-allyoxyphenol, adipostatins E-G, 4-bromophenol, and ansamycins (seco-geldanamycin B, 4.5-dihydro-17-O-demethylgeldanamycin, and seco-geldanamycin) have been found to possess anti-Listerial activity. Thus, our literature survey reveals the scarcity of published assays testing the anti-Listerial capacity of bioactive compounds sourced from marine actinobacteria during this period.
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Affiliation(s)
| | - Evelyn Madoroba
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa 3886, South Africa;
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34
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Crippen TL, Sullivan JP, Anderson RC. Bacterial proximity effects on the transfer of antibiotic resistance genes within the alimentary tract of yellow mealworm larvae. JOURNAL OF ECONOMIC ENTOMOLOGY 2024; 117:417-426. [PMID: 38412361 DOI: 10.1093/jee/toae019] [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: 11/20/2023] [Revised: 01/04/2024] [Accepted: 01/29/2024] [Indexed: 02/29/2024]
Abstract
The arthropod intestinal tract and other anatomical parts naturally carry microorganisms. Some of which are pathogens, secrete toxins, or carry transferable antibiotic-resistance genes. The risks associated with the production and consumption of edible arthropods are dependent on indigenous microbes, as well as microbes introduced during the processes of rearing. This mass arthropod production puts individual arthropods in close proximity, which increases the possibility of their exposure to antibiotic-resistant bacteria carried by bacteria from fellow insects, industry workers, or rearing hardware and substrates. The purpose of this study was to determine if the alimentary tract of the yellow mealworm provided an environment permitting horizontal gene transfer between bacteria. The effect of the concentration of bacterial exposure was also assessed. Antibiotic resistance gene transfer between marker Salmonella Lignières (Enterobacterales: Enterobacteriaceae) and Escherichia coli (Migula) (Enterobacterales: Enterobacteriaceae) introduced into the larval gut demonstrated that the nutrient-rich environment of the yellow mealworm gut provided favorable conditions for the transfer of antibiotic resistance genes. Conjugation frequencies were similar across inoculum concentrations; however, transconjugant production correlated positively to increased exposure concentration. The lowest concentration of bacterial exposure required enrichment to detect and thus may have been approaching a threshold level for the 2 bacteria to colocate within the expanse of the larval gut. While many factors can affect this transfer, the simple factor of the proximity of donor and recipient bacteria, as defined by the concentration of bacteria within the volume of the insect gut, likely primarily contributed to the efficiency of antibiotic gene transfer.
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Affiliation(s)
- Tawni L Crippen
- Food and Feed Safety Research Unit, Southern Plains Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, 2881 F and B Road, College Station, TX 77845, USA
| | - John P Sullivan
- Food and Feed Safety Research Unit, Southern Plains Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, 2881 F and B Road, College Station, TX 77845, USA
| | - Robin C Anderson
- Food and Feed Safety Research Unit, Southern Plains Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, 2881 F and B Road, College Station, TX 77845, USA
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35
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Banks EJ, Le TBK. Co-opting bacterial viruses for DNA exchange: structure and regulation of gene transfer agents. Curr Opin Microbiol 2024; 78:102431. [PMID: 38309246 DOI: 10.1016/j.mib.2024.102431] [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: 11/23/2023] [Revised: 01/03/2024] [Accepted: 01/09/2024] [Indexed: 02/05/2024]
Abstract
Horizontal gene transfer occurs via a range of mechanisms, including transformation, conjugation and bacteriophage transduction. Gene transfer agents (GTAs) are an alternative, less-studied route for interbacterial DNA exchange. Encoded within bacterial or archaeal genomes, GTAs assemble into phage-like particles that selflessly package and transmit host DNA to recipient bacteria. Several unique features distinguish GTAs from canonical phages such as an inability to self-replicate, thus producing non-infectious particles. GTAs are also deeply integrated into the physiology of the host cell and are maintained under tight host-regulatory control. Recent advances in understanding the structure and regulation of GTAs have provided further insights into a DNA transfer mechanism that is proving increasingly widespread across the bacterial tree of life.
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Affiliation(s)
- Emma J Banks
- Department of Molecular Microbiology, John Innes Centre, Norwich NR4 7UH, UK.
| | - Tung B K Le
- Department of Molecular Microbiology, John Innes Centre, Norwich NR4 7UH, UK.
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36
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Rzymski P, Gwenzi W, Poniedziałek B, Mangul S, Fal A. Climate warming, environmental degradation and pollution as drivers of antibiotic resistance. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 346:123649. [PMID: 38402936 DOI: 10.1016/j.envpol.2024.123649] [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: 10/17/2023] [Revised: 02/17/2024] [Accepted: 02/22/2024] [Indexed: 02/27/2024]
Abstract
Antibiotic resistance is a major challenge to public health, but human-caused environmental changes have not been widely recognized as its drivers. Here, we provide a comprehensive overview of the relationships between environmental degradation and antibiotic resistance, demonstrating that the former can potentially fuel the latter with significant public health outcomes. We describe that (i) global warming favors horizontal gene transfer, bacterial infections, the spread of drug-resistant pathogens due to water scarcity, and the release of resistance genes with wastewater; (ii) pesticide and metal pollution act as co-selectors of antibiotic resistance mechanisms; (iii) microplastics create conditions promoting and spreading antibiotic resistance and resistant bacteria; (iv) changes in land use, deforestation, and environmental pollution reduce microbial diversity, a natural barrier to antibiotic resistance spread. We argue that management of antibiotic resistance must integrate environmental goals, including mitigation of further increases in the Earth's surface temperature, better qualitative and quantitative protection of water resources, strengthening of sewage infrastructure and improving wastewater treatment, counteracting the microbial diversity loss, reduction of pesticide and metal emissions, and plastic use, and improving waste recycling. These actions should be accompanied by restricting antibiotic use only to clinically justified situations, developing novel treatments, and promoting prophylaxis. It is pivotal for health authorities and the medical community to adopt the protection of environmental quality as a part of public health measures, also in the context of antibiotic resistance management.
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Affiliation(s)
- Piotr Rzymski
- Department of Environmental Medicine, Poznan University of Medical Sciences, Poznań, Poland.
| | - Willis Gwenzi
- Biosystems and Environmental Engineering Research Group, 380 New Adylin, Marlborough, Harare, Zimbabwe; Alexander von Humboldt Fellow and Guest Professor, Grassland Science and Renewable Plant Resources, Faculty of Organic Agricultural Sciences, Universität Kassel, Witzenhausen, Germany; Alexander von Humboldt Fellow and Guest Professor, Leibniz Institute for Agricultural Engineering and Bioeconomy, Potsdam, Germany
| | - Barbara Poniedziałek
- Department of Environmental Medicine, Poznan University of Medical Sciences, Poznań, Poland
| | - Serghei Mangul
- Titus Family Department of Clinical Pharmacy, USC Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, USA
| | - Andrzej Fal
- Department of Allergy, Lung Diseases and Internal Medicine Central Clinical Hospital, Ministry of Interior, Warsaw, Poland; Collegium Medicum, Warsaw Faculty of Medicine, Cardinal Stefan Wyszyński University, Warsaw, Poland
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37
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Li Z, Guo X, Liu B, Huang T, Liu R, Liu X. Metagenome sequencing reveals shifts in phage-associated antibiotic resistance genes from influent to effluent in wastewater treatment plants. WATER RESEARCH 2024; 253:121289. [PMID: 38341975 DOI: 10.1016/j.watres.2024.121289] [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: 10/24/2023] [Revised: 01/12/2024] [Accepted: 02/07/2024] [Indexed: 02/13/2024]
Abstract
Antibiotic resistance poses a significant threat to global health, and the microbe-rich activated sludge environment may contribute to the dissemination of antibiotic resistance genes (ARGs). ARGs spread across various bacterial populations via multiple dissemination routes, including horizontal gene transfer mediated by bacteriophages (phages). However, the potential role of phages in spreading ARGs in wastewater treatment systems remains unclear. This study characterized the core resistome, mobile genetic elements (MGEs), and virus-associated ARGs (vir_ARGs) in influents (Inf) and effluents (Eff) samples from nine WWTPs in eastern China. The abundance of ARGs in the Inf samples was higher than that in the Eff samples. A total of 21 core ARGs were identified, accounting for 38.70 %-83.70 % of the different samples. There was an increase in MGEs associated with phage-related processes from influents to effluents (from 12.68 % to 21.10 %). These MGEs showed strong correlations in relative abundance and composition with the core ARGs in the Eff samples. Across the Inf and Eff samples, 58 unique vir_ARGs were detected, with the Eff samples exhibiting higher diversity of vir_ARGs than the Inf samples. Statistical analyses indicated a robust relationship between core ARG profile, MGEs associated with phage-related processes, and vir_ARG composition in the Eff samples. Additionally, the co-occurrence of MGEs and ARGs in viral genomes was observed, ranging from 22.73 % to 68.75 %. This co-occurrence may exacerbate the persistence and spread of ARGs within WWTPs. The findings present new information on the changes in core ARGs, MGEs, and phage-associated ARGs from influents to effluents in WWTPs and provide new insights into the role of phage-associated ARGs in these systems.
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Affiliation(s)
- Zong Li
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Binzhou Institute of Technology, Binzhou 256212, China
| | - Xiaoxiao Guo
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Binzhou Institute of Technology, Binzhou 256212, China
| | - Bingxin Liu
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ting Huang
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruyin Liu
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Binzhou Institute of Technology, Binzhou 256212, China.
| | - Xinchun Liu
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Binzhou Institute of Technology, Binzhou 256212, China.
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38
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Zhao W, Wu J, Jiang X, He T, Hu X. Causal-ARG: a causality-guided framework for annotating properties of antibiotic resistance genes. Bioinformatics 2024; 40:btae180. [PMID: 38569882 PMCID: PMC11026140 DOI: 10.1093/bioinformatics/btae180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/13/2024] [Accepted: 04/02/2024] [Indexed: 04/05/2024] Open
Abstract
MOTIVATION The crisis of antibiotic resistance, which causes antibiotics used to treat bacterial infections to become less effective, has emerged as one of the foremost challenges to public health. Identifying the properties of antibiotic resistance genes (ARGs) is an essential way to mitigate this issue. Although numerous methods have been proposed for this task, most of these approaches concentrate solely on predicting antibiotic class, disregarding other important properties of ARGs. In addition, existing methods for simultaneously predicting multiple properties of ARGs fail to account for the causal relationships among these properties, limiting the predictive performance. RESULTS In this study, we propose a causality-guided framework for annotating properties of ARGs, in which causal inference is utilized for representation learning. More specifically, the hidden biological patterns determining the properties of ARGs are described by a Gaussian Mixture Model, and procedure of causal representation learning is used to derive the hidden features. In addition, a causal graph among different properties is constructed to capture the causal relationships among properties of ARGs, which is integrated into the task of annotating properties of ARGs. The experimental results on a real-world dataset demonstrate the effectiveness of the proposed framework on the task of annotating properties of ARGs. AVAILABILITY AND IMPLEMENTATION The data and source codes are available in GitHub at https://github.com/David-WZhao/CausalARG.
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Affiliation(s)
- Weizhong Zhao
- Hubei Provincial Key Laboratory of Artificial Intelligence and Smart Learning, Central China Normal University, Wuhan, Hubei 430079, P.R. China
- School of Computer, Central China Normal University, Wuhan, Hubei 430079, P.R. China
- National Language Resources Monitoring & Research Center for Network Media, Central China Normal University, Wuhan, Hubei 430079, P.R. China
| | - Junze Wu
- Hubei Provincial Key Laboratory of Artificial Intelligence and Smart Learning, Central China Normal University, Wuhan, Hubei 430079, P.R. China
| | - Xingpeng Jiang
- Hubei Provincial Key Laboratory of Artificial Intelligence and Smart Learning, Central China Normal University, Wuhan, Hubei 430079, P.R. China
| | - Tingting He
- Hubei Provincial Key Laboratory of Artificial Intelligence and Smart Learning, Central China Normal University, Wuhan, Hubei 430079, P.R. China
| | - Xiaohua Hu
- College of Computing & Informatics, Drexel University, Philadelphia, PA 19104, United States
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39
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Stelmaszyk L, Stange C, Hügler M, Sidhu JP, Horn H, Tiehm A. Quantification of β-lactamase producing bacteria in German surface waters with subsequent MALDI-TOF MS-based identification and β-lactamase activity assay. Heliyon 2024; 10:e27384. [PMID: 38486766 PMCID: PMC10937694 DOI: 10.1016/j.heliyon.2024.e27384] [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: 04/11/2023] [Revised: 02/21/2024] [Accepted: 02/28/2024] [Indexed: 03/17/2024] Open
Abstract
Environmental oligotrophic bacteria are suspected to be highly relevant carriers of antimicrobial resistance (AMR). However, there is a lack of validated methods for monitoring in the aquatic environment. Since extended-spectrum β-lactamases (ESBLs) play a particularly important role in the clinical sector, a culturing method based on R2A-medium spiked with different combinations of β-lactams was applied to quantify β-lactamase-producing environmental bacteria from surface waters. In German surface water samples (n = 28), oligotrophic bacteria ranging from 4.0 × 103 to 1.7 × 104 CFU per 100 mL were detected on the nutrient-poor medium spiked with 3rd generation cephalosporins and carbapenems. These numbers were 3 log10 higher compared to ESBL-producing Enterobacteriales of clinical relevance from the same water samples. A MALDI-TOF MS identification of the isolates demonstrated, that the method leads to the isolation of environmentally relevant strains with Pseudomonas, Flavobacterium, and Janthinobacterium being predominant β-lactam resistant genera. Subsequent micro-dilution antibiotic susceptibility tests (Micronaut-S test) confirmed the expression of β-lactamases. The qPCR analysis of surface waters DNA extracts showed the presence of β-lactamase genes (blaTEM, blaCMY-2, blaOXA-48, blaVIM-2, blaSHV, and blaNDM-1) at concentrations of 3.7 (±1.2) to 1.0 (±1.9) log10 gene copies per 100 mL. Overall, the results demonstrate a widespread distribution of cephalosporinase and carbapenemase enzymes in oligotrophic environmental bacteria that have to be considered as a reservoir of ARGs and contribute to the spread of antibiotic resistance.
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Affiliation(s)
- Lara Stelmaszyk
- TZW: DVGW Technologiezentrum Wasser, Department of Water Microbiology, Karlsruher Straße 84, Karlsruhe, Germany
| | - Claudia Stange
- TZW: DVGW Technologiezentrum Wasser, Department of Water Microbiology, Karlsruher Straße 84, Karlsruhe, Germany
| | - Michael Hügler
- TZW: DVGW Technologiezentrum Wasser, Department of Water Microbiology, Karlsruher Straße 84, Karlsruhe, Germany
| | - Jatinder P.S. Sidhu
- CSIRO Oceans and Atmosphere, Ecosciences Precinct, 41 Boggo Road, Brisbane, Australia
| | - Harald Horn
- Karlsruher Institut für Technologie, Engler-Bunte Institute, Wasserchemie und Wassertechnologie, Engler-Bunte-Ring 9a, Karlsruhe, Germany
| | - Andreas Tiehm
- TZW: DVGW Technologiezentrum Wasser, Department of Water Microbiology, Karlsruher Straße 84, Karlsruhe, Germany
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40
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Fang Y, Chen C, Cui B, Zhou D. Nanoscale zero-valent iron alleviate antibiotic resistance risk during managed aquifer recharge (MAR) by regulating denitrifying bacterial network. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133238. [PMID: 38134694 DOI: 10.1016/j.jhazmat.2023.133238] [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: 09/15/2023] [Revised: 11/05/2023] [Accepted: 12/10/2023] [Indexed: 12/24/2023]
Abstract
The frequent occurrence of antibiotics in reclaimed water is concerning, in the case of managed aquifer recharge (MAR), it inevitably hinders further water purification and accelerates the evolutionary resistance in indigenous bacteria. In this study, we constructed two column reactors and nanoscale zero-valent iron (nZVI) amendment was applied for its effects on water quality variation, microbial community succession, and antibiotic resistance genes (ARGs) dissemination, deciphered the underlying mechanism of resistance risk reduction. Results showed that nZVI was oxidized to iron oxides in the sediment column, and total effluent iron concentration was within permissible limits. nZVI enhanced NO3--N removal by 15.5% through enriching denitrifying bacteria and genes, whereas made no effects on oxacillin (OXA) removal. In addition, nZVI exhibited a pivotal impact on ARGs and plasmids decreasing. Network analysis elucidated that the diversity and richness of ARG host declined with nZVI amendment. Denitrifying bacteria play a key role in suppressing horizontal gene transfer (HGT). The underlying mechanisms of inhibited HGT included the downregulated SOS response, the inhibited Type-Ⅳ secretion system and the weakened driving force. This study afforded vital insights into ARG spread control, providing a reference for future applications of nZVI in MAR.
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Affiliation(s)
- Yuanping Fang
- Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Ministry of Education, Northeast Normal University, Changchun 130117, China; Jilin Engineering Lab for Water Pollution Control and Resources Recovery, Northeast Normal University, Changchun 130117, China
| | - Congli Chen
- Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Ministry of Education, Northeast Normal University, Changchun 130117, China; Jilin Engineering Lab for Water Pollution Control and Resources Recovery, Northeast Normal University, Changchun 130117, China
| | - Bin Cui
- Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Ministry of Education, Northeast Normal University, Changchun 130117, China; Jilin Engineering Lab for Water Pollution Control and Resources Recovery, Northeast Normal University, Changchun 130117, China.
| | - Dandan Zhou
- Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Ministry of Education, Northeast Normal University, Changchun 130117, China; Jilin Engineering Lab for Water Pollution Control and Resources Recovery, Northeast Normal University, Changchun 130117, China.
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Zhou Z, Tang J, Tang K, An M, Liu Z, Wu Z, Cao X, He C. Selective enrichment of bacteria and antibiotic resistance genes in microplastic biofilms and their potential hazards in coral reef ecosystems. CHEMOSPHERE 2024; 352:141309. [PMID: 38281603 DOI: 10.1016/j.chemosphere.2024.141309] [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: 07/06/2023] [Revised: 01/11/2024] [Accepted: 01/25/2024] [Indexed: 01/30/2024]
Abstract
Microplastics become hotspots for bacteria to trigger a series of ecological effects, but few studies have focused on the potential impacts of microplastic biofilms in coral reef ecosystems. Here, we measured the bacterial communities and antibiotic resistance genes (ARGs) in the seawater and microplastic biofilms. Results showed that microbial biofilms were formed on the surface of microplastics. The alpha diversity of the bacterial community in the microplastic biofilms was lower than that in the seawater, and the bacterial communities were distinct between the two. Further analysis revealed that several bacteria in the microplastic biofilms carried ARGs, and the proportion of which was correlated to the concentration of antibiotics in the seawater. Specifically, Vibrio was positively correlated to sul1 in the microplastic biofilms under higher concentrations of sulfonamides. Pathway analysis reflected significant overrepresentation of human disease related pathways in the bacterial community of microplastic biofilms. These results suggest that the microplastic biofilms could selectively enrich bacteria from the reef environments, causing the development of ARGs under antibiotic driving. This may pose a serious threat to coral reef ecosystems and human health. Our study provides new insights into the ecological impacts of microplastic biofilms in coral reef ecosystems.
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Affiliation(s)
- Zhi Zhou
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China.
| | - Jia Tang
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
| | - Kai Tang
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
| | - Mingxun An
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
| | - Zhaoqun Liu
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
| | - Zhongjie Wu
- Hainan Academy of Ocean and Fisheries Sciences, Haikou 571126, China.
| | - Xiaocong Cao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China; Hainan Research Academy of Environmental Sciences, Haikou 571126, China
| | - Chunlong He
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
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Horvath ERB, Stein MG, Mulvey MA, Hernandez EJ, Winter JM. Resistance Gene Association and Inference Network (ReGAIN): A Bioinformatics Pipeline for Assessing Probabilistic Co-Occurrence Between Resistance Genes in Bacterial Pathogens. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.26.582197. [PMID: 38464005 PMCID: PMC10925210 DOI: 10.1101/2024.02.26.582197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
The rampant rise of multidrug resistant (MDR) bacterial pathogens poses a severe health threat, necessitating innovative tools to unravel the complex genetic underpinnings of antimicrobial resistance. Despite significant strides in developing genomic tools for detecting resistance genes, a gap remains in analyzing organism-specific patterns of resistance gene co-occurrence. Addressing this deficiency, we developed the Resistance Gene Association and Inference Network (ReGAIN), a novel web-based and command line genomic platform that uses Bayesian network structure learning to identify and map resistance gene networks in bacterial pathogens. ReGAIN not only detects resistance genes using well-established methods, but also elucidates their complex interplay, critical for understanding MDR phenotypes. Focusing on ESKAPE pathogens, ReGAIN yielded a queryable database for investigating resistance gene co-occurrence, enriching resistome analyses, and providing new insights into the dynamics of antimicrobial resistance. Furthermore, the versatility of ReGAIN extends beyond antibiotic resistance genes to include assessment of co-occurrence patterns among heavy metal resistance and virulence determinants, providing a comprehensive overview of key gene relationships impacting both disease progression and treatment outcomes.
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Affiliation(s)
- Elijah R Bring Horvath
- Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, Utah, 84112, United States
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah, 84112, United States
| | - Mathew G Stein
- Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, Utah, 84112, United States
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah, 84112, United States
- School of Biological Sciences, University of Utah, Salt Lake City, UT 84112, United States
- Henry Eyring Center for Cell & Genome Science, University of Utah, Salt Lake City, UT 84112, United States
- Department of Biomedical Informatics, University of Utah, Salt Lake City, Utah, 84112, United States
| | - Matthew A Mulvey
- School of Biological Sciences, University of Utah, Salt Lake City, UT 84112, United States
- Henry Eyring Center for Cell & Genome Science, University of Utah, Salt Lake City, UT 84112, United States
| | - Edgar J Hernandez
- Department of Biomedical Informatics, University of Utah, Salt Lake City, Utah, 84112, United States
| | - Jaclyn M Winter
- Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, Utah, 84112, United States
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Surekha S, Lamiyan AK, Gupta V. Antibiotic Resistant Biofilms and the Quest for Novel Therapeutic Strategies. Indian J Microbiol 2024; 64:20-35. [PMID: 38468748 PMCID: PMC10924852 DOI: 10.1007/s12088-023-01138-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 11/03/2023] [Indexed: 03/13/2024] Open
Abstract
Antimicrobial resistance (AMR) is one of the major leading causes of death around the globe. Present treatment pipelines are insufficient to overcome the critical situation. Prominent biofilm forming human pathogens which can thrive in infection sites using adaptive features results in biofilm persistence. Considering the present scenario, prudential investigations into the mechanisms of resistance target them to improve antibiotic efficacy is required. Regarding this, developing newer and effective treatment options using edge cutting technologies in medical research is the need of time. The reasons underlying the adaptive features in biofilm persistence have been centred on different metabolic and physiological aspects. The high tolerance levels against antibiotics direct researchers to search for novel bioactive molecules that can help combat the problem. In view of this, the present review outlines the focuses on an opportunity of different strategies which are in testing pipeline can thus be developed into products ready to use.
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Affiliation(s)
- Saumya Surekha
- Department of Biochemistry, Panjab University, Chandigarh, India
| | | | - Varsha Gupta
- GMCH: Government Medical College and Hospital, Chandigarh, India
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Lin FC, Ng WV, Wang HP, Hung CH, Chang JT, Yang CC, Liu PY, Cheng MF. Characterization of young infants with fecal carriage of multidrug-resistant Escherichia coli in Southern Taiwan. Pediatr Neonatol 2024; 65:138-144. [PMID: 37718133 DOI: 10.1016/j.pedneo.2023.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 03/12/2023] [Accepted: 04/20/2023] [Indexed: 09/19/2023] Open
Abstract
BACKGROUND The accelerating prevalence of extended-spectrum β-lactamase (ESBL)-producing and multidrug-resistance (MDR) Escherichia coli(E. coli) become a public health challenge worldwide. This study aimed to discuss the prevalence of drug-resistant E. coli colonization and analyze its risk factors and clinical characteristics among young infants in Southern Taiwan. METHODS Stool samples were collected from young infants, aged less than three months, within three days of their hospitalization from September to December 2019 in a tertiary hospital. A questionnaire was designed for parents to complete. E. coli colonies were selected and analyzed for antimicrobial susceptibility. PCR-based multilocus sequence typing was to detect the presence of sequence type ST131 and blaCTX-M genes. RESULTS Among 100 enrolled infants, 36% had fecal carriage of E. coli isolates, of which twenty nine (80.5%) were MDR, thirteen (36.1%) were ESBL-producing isolates and five (13.8%) and ten (27.7%) were ST131 and strains carrying CTX-M-14 gene, respectively. Compared to non-ST131 and non-CTX-M-14 gene carrier, isolates of ST131 and CTX-M-14 gene carrier showed a significantly higher resistance rate to cefixime, ceftriaxone, and gentamycin, with p value all <0.05. CONCLUSION The prevalence of ESBL-producing and MDR E. coli fecal carriage were both high in young infants. The most common sequence type is ST131, of which all are strains carrying CTX-M-14. Further surveillance and investigation to control for the high prevalence of antimicrobial-resistant E. coli fecal carriage among infants in Taiwan are warranted.
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Affiliation(s)
- Fang-Chih Lin
- Division of Pediatric Neonatology, Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Wailap Victor Ng
- Department of Biotechnology and Laboratory Science in Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Hsiao-Ping Wang
- Division of Pediatric Neonatology, Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Chih-Hsin Hung
- Institute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung, Taiwan
| | - Jenn-Tzong Chang
- Division of Pediatric Neonatology, Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Chih-Chieh Yang
- Division of Pediatric Neonatology, Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Po-Yen Liu
- Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Ming-Fang Cheng
- Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Nursing, Fooyin University, Kaohsiung, Taiwan.
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Kumar V, Roy S, Parida SN, Bisai K, Dhar S, Jana AK, Das BK. Deciphering the impact of endoparasitic infection on immune response and gut microbial composition of Channa punctata. Front Cell Infect Microbiol 2024; 14:1296769. [PMID: 38476164 PMCID: PMC10927727 DOI: 10.3389/fcimb.2024.1296769] [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: 09/19/2023] [Accepted: 01/19/2024] [Indexed: 03/14/2024] Open
Abstract
Intestinal parasitic infections caused by helminths are globally distributed and are a major cause of morbidity worldwide. Parasites may modulate the virulence, gut microbiota diversity and host responses during infection. Despite numerous works, little is known about the complex interaction between parasites and the gut microbiota. In the present study, the complex interplay between parasites and the gut microbiota was investigated. A total of 12 bacterial strains across four major families, including Enterobacteriaceae, Morganellaceae, Flavobacteriaceae, and Pseudomonadaceae, were isolated from Channa punctata, infected with the nematode species Aporcella sp., Axonchium sp., Tylencholaimus mirabilis, and Dioctophyme renale. The findings revealed that nematode infection shaped the fish gut bacterial microbiota and significantly affected their virulence levels. Nematode-infected fish bacterial isolates are more likely to be pathogenic, with elevated hemolytic activity and biofilm formation, causing high fish mortality. In contrast, isolates recovered further from non-parasitised C. punctata were observed to be non-pathogenic and had negligible hemolytic activity and biofilm formation. Antibiogram analysis of the bacterial isolates revealed a disproportionately high percentage of bacteria that were either marginally or multidrug resistant, suggesting that parasitic infection-induced stress modulates the gut microenvironment and enables colonization by antibiotic-resistant strains. This isolation-based study provides an avenue to unravel the influence of parasitic infection on gut bacterial characteristics, which is valuable for understanding the infection mechanism and designing further studies aimed at optimizing treatment strategies. In addition, the cultured isolates can supplement future gut microbiome studies by providing wet lab specimens to compare (meta)genomic information discovered within the gut microenvironment of fish.
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Affiliation(s)
| | | | | | | | | | | | - Basanta Kumar Das
- Aquatic Environmental Biotechnology and Nanotechnology (AEBN) Division, Indian Council of Agricultural Research (ICAR)-Central Inland Fisheries Research Institute (CIFRI), Barrackpore, India
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Huo M, Xu X, Mi K, Ma W, Zhou Q, Lin X, Cheng G, Huang L. Co-selection mechanism for bacterial resistance to major chemical pollutants in the environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169223. [PMID: 38101638 DOI: 10.1016/j.scitotenv.2023.169223] [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: 08/21/2023] [Revised: 11/30/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023]
Abstract
Bacterial resistance is an emerging global public health problem, posing a significant threat to animal and human health. Chemical pollutants present in the environment exert selective pressure on bacteria, which acquire resistance through co-resistance, cross-resistance, co-regulation, and biofilm resistance. Resistance genes are horizontally transmitted in the environment through four mechanisms including conjugation transfer, bacterial transformation, bacteriophage transduction, and membrane vesicle transport, and even enter human bodies through the food chain, endangering human health. Although the co-selection effects of bacterial resistance to chemical pollutants has attracted widespread attention, the co-screening mechanism and co-transmission mechanisms remain unclear. Therefore, this article summarises the current research status of the co-selection effects and mechanism of environmental pollutants resistance, emphasising the necessity of studying the co-selection mechanism of bacteria against major chemical pollutants, and lays a solid theoretical foundation for conducting risk assessment of bacterial resistance.
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Affiliation(s)
- Meixia Huo
- National Laboratory for Veterinary Drug Safety Evaluation, Huazhong Agriculture University, Wuhan 430070, China; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Hubei 430070, China; College of Veterinary Medicine, Huazhong Agriculture University, Wuhan 430070, China
| | - Xiangyue Xu
- National Laboratory for Veterinary Drug Safety Evaluation, Huazhong Agriculture University, Wuhan 430070, China; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Hubei 430070, China; College of Veterinary Medicine, Huazhong Agriculture University, Wuhan 430070, China
| | - Kun Mi
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Huazhong Agriculture University, Wuhan 430070, China; MOA Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China; College of Veterinary Medicine, Huazhong Agriculture University, Wuhan 430070, China
| | - Wenjin Ma
- National Laboratory for Veterinary Drug Safety Evaluation, Huazhong Agriculture University, Wuhan 430070, China; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Hubei 430070, China; College of Veterinary Medicine, Huazhong Agriculture University, Wuhan 430070, China
| | - Qin Zhou
- National Laboratory for Veterinary Drug Safety Evaluation, Huazhong Agriculture University, Wuhan 430070, China; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Hubei 430070, China; College of Veterinary Medicine, Huazhong Agriculture University, Wuhan 430070, China
| | - Xudong Lin
- National Laboratory for Veterinary Drug Safety Evaluation, Huazhong Agriculture University, Wuhan 430070, China; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Hubei 430070, China; College of Veterinary Medicine, Huazhong Agriculture University, Wuhan 430070, China
| | - Guyue Cheng
- National Laboratory for Veterinary Drug Safety Evaluation, Huazhong Agriculture University, Wuhan 430070, China; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Hubei 430070, China; National Reference Laboratory of Veterinary Drug Residues (HZAU), Huazhong Agriculture University, Wuhan 430070, China; MOA Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China; College of Veterinary Medicine, Huazhong Agriculture University, Wuhan 430070, China
| | - Lingli Huang
- National Laboratory for Veterinary Drug Safety Evaluation, Huazhong Agriculture University, Wuhan 430070, China; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Hubei 430070, China; National Reference Laboratory of Veterinary Drug Residues (HZAU), Huazhong Agriculture University, Wuhan 430070, China; MOA Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China; College of Veterinary Medicine, Huazhong Agriculture University, Wuhan 430070, China.
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Scicchitano D, Babbi G, Palladino G, Turroni S, Mekonnen YT, Laczny C, Wilmes P, Leekitcharoenphon P, Castagnetti A, D'Amico F, Brigidi P, Savojardo C, Manfreda G, Martelli P, De Cesare A, Aarestrup FM, Candela M, Rampelli S. Routes of dispersion of antibiotic resistance genes from the poultry farm system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169086. [PMID: 38056648 DOI: 10.1016/j.scitotenv.2023.169086] [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: 09/15/2023] [Revised: 12/01/2023] [Accepted: 12/01/2023] [Indexed: 12/08/2023]
Abstract
Poultry farms are hotspots for the development and spread of antibiotic resistance genes (ARGs), due to high stocking densities and extensive use of antibiotics, posing a threat of spread and contagion to workers and the external environment. Here, we applied shotgun metagenome sequencing to characterize the gut microbiome and resistome of poultry, workers and their households - also including microbiomes from the internal and external farm environment - in three different farms in Italy during a complete rearing cycle. Our results highlighted a relevant overlap among the microbiomes of poultry, workers, and their families (gut and skin), with clinically relevant ARGs and associated mobile elements shared in both poultry and human samples. On a finer scale, the reconstruction of species-level genome bins (SGBs) allowed us to delineate the dynamics of microorganism and ARGs dispersion from farm systems. We found the associations with worker microbiomes representing the main route of ARGs dispersion from poultry to human populations. Collectively, our findings clearly demonstrate the urgent need to implement more effective procedures to counteract ARGs dispersion from poultry food systems and the relevance of metagenomics-based metacommunity approaches to monitor the ARGs dispersion process for the safety of the working environment on farms.
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Kamel M, Aleya S, Alsubih M, Aleya L. Microbiome Dynamics: A Paradigm Shift in Combatting Infectious Diseases. J Pers Med 2024; 14:217. [PMID: 38392650 PMCID: PMC10890469 DOI: 10.3390/jpm14020217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/24/2024] Open
Abstract
Infectious diseases have long posed a significant threat to global health and require constant innovation in treatment approaches. However, recent groundbreaking research has shed light on a previously overlooked player in the pathogenesis of disease-the human microbiome. This review article addresses the intricate relationship between the microbiome and infectious diseases and unravels its role as a crucial mediator of host-pathogen interactions. We explore the remarkable potential of harnessing this dynamic ecosystem to develop innovative treatment strategies that could revolutionize the management of infectious diseases. By exploring the latest advances and emerging trends, this review aims to provide a new perspective on combating infectious diseases by targeting the microbiome.
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Affiliation(s)
- Mohamed Kamel
- Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza 11221, Egypt
| | - Sami Aleya
- Faculty of Medecine, Université de Bourgogne Franche-Comté, Hauts-du-Chazal, 25030 Besançon, France
| | - Majed Alsubih
- Department of Civil Engineering, King Khalid University, Guraiger, Abha 62529, Saudi Arabia
| | - Lotfi Aleya
- Laboratoire de Chrono-Environnement, Université de Bourgogne Franche-Comté, UMR CNRS 6249, La Bouloie, 25030 Besançon, France
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Zhang J, Li W, Zhang X, Wang X, Lv L. Combined applications of UV and chlorine on antibiotic resistance control: A critical review. ENVIRONMENTAL RESEARCH 2024; 243:117884. [PMID: 38072103 DOI: 10.1016/j.envres.2023.117884] [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: 10/01/2023] [Revised: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
Environmental health problems caused by antibiotic-resistant bacteria (ARB) and antibiotic-resistant genes (ARGs) have become a global concern. ARB and ARGs have been continuously detected in various water environments, which pose a new challenge for water quality safety assurance. Disinfection is a key water treatment process to eliminate pathogenic microorganisms in water, and combined chlorine and UV processes (the UV/Cl2 process, the UV-Cl2 process, and the Cl2-UV process) are considered potential disinfection methods to control antibiotic resistance. This review documented the efficacy and mechanism of combined UV and chlorine processes for the control of antibiotic resistance, as well as the effects of chlorine dose, solution pH, UV wavelength, and water matrix on the effectiveness of the processes. There are knowledge gaps in research on the combined chlorine and UV processes for antibiotic resistance control, in particular the UV-Cl2 process and the Cl2-UV process. In addition, changes in the structure of microbial communities and the distribution of ARGs, which are closely related to the spread of antibiotic resistance in the water, induced by combined processes were also addressed. Whether these changes could lead to the re-transmission of antibiotic resistance and harm human health may need to be further evaluated.
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Affiliation(s)
- Jingyi Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China; School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Weiguang Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China; School of Environment, Harbin Institute of Technology, Harbin, 150090, China.
| | - Xinran Zhang
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou, 510275, China
| | - Xuhui Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China; School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Longyi Lv
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China
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50
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Dao TH, Echlin H, McKnight A, Marr ES, Junker J, Jia Q, Hayden R, van Opijnen T, Isberg RR, Cooper VS, Rosch JW. Streptococcus pneumoniae favors tolerance via metabolic adaptation over resistance to circumvent fluoroquinolones. mBio 2024; 15:e0282823. [PMID: 38193698 PMCID: PMC10865975 DOI: 10.1128/mbio.02828-23] [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: 10/17/2023] [Accepted: 12/01/2023] [Indexed: 01/10/2024] Open
Abstract
Streptococcus pneumoniae is a major human pathogen of global health concern and the rapid emergence of antibiotic resistance poses a serious public health problem worldwide. Fluoroquinolone resistance in S. pneumoniae is an intriguing case because the prevalence of fluoroquinolone resistance does not correlate with increasing usage and has remained rare. Our data indicate that deleterious fitness costs in the mammalian host constrain the emergence of fluoroquinolone resistance both by de novo mutation and recombination. S. pneumoniae was able to circumvent such deleterious fitness costs via the development of antibiotic tolerance through metabolic adaptation that reduced the production of reactive oxygen species, resulting in a fitness benefit during infection of mice treated with fluoroquinolones. These data suggest that the emergence of fluoroquinolone resistance is tightly constrained in S. pneumoniae by fitness tradeoffs and that mutational pathways involving metabolic networks to enable tolerance phenotypes are an important contributor to the evasion of antibiotic-mediated killing.IMPORTANCEThe increasing prevalence of antibiotic resistant bacteria is a major global health concern. While many species have the potential to develop antibiotic resistance, understanding the barriers to resistance emergence in the clinic remains poorly understood. A prime example of this is fluroquinolone resistance in Streptococcus pneumoniae, whereby, despite continued utilization, resistance to this class of antibiotic remains rare. In this study, we found that the predominant pathways for developing resistance to this antibiotic class severely compromised the infectious capacity of the pneumococcus, providing a key impediment for the emergence of resistance. Using in vivo models of experimental evolution, we found that S. pneumoniae responds to repeated fluoroquinolone exposure by modulating key metabolic pathways involved in the generation of redox molecules, which leads to antibiotic treatment failure in the absence of appreciable shifts in resistance levels. These data underscore the complex pathways available to pathogens to evade antibiotic mediating killing via antibiotic tolerance.
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Affiliation(s)
- Tina H. Dao
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Haley Echlin
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Abigail McKnight
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Enolia S. Marr
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Julia Junker
- Nationales Referenzzentrum für Streptokokken Abteilung Medizinische Mikrobiologie, Universitätsklinikum RWTH Aachen, Aachen, Germany
| | - Qidong Jia
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Randall Hayden
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Tim van Opijnen
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Ralph R. Isberg
- Deptartment of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Vaughn S. Cooper
- Center for Evolutionary Biology and Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Jason W. Rosch
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
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