Comparison of Gene Expression Profiles of Uropathogenic <i>Escherichia Coli</i> CFT073 after Prolonged Exposure to Subinhibitory Concentrations of Different Biocides
Biocides are chemical compounds widely used for sterilization and disinfection. The aim of this study was to examine whether exposure to subinhibitory biocide concentrations influenced transcriptional expression of genes that could improve a pathogen’s drug resistance or fitness. We used D...
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MDPI AG
2019-09-01
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| Series: | Antibiotics |
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| Online Access: | https://www.mdpi.com/2079-6382/8/4/167 |
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| author | Małgorzata Ligowska-Marzęta Viktoria Hancock Hanne Ingmer Frank M. Aarestrup |
| author_facet | Małgorzata Ligowska-Marzęta Viktoria Hancock Hanne Ingmer Frank M. Aarestrup |
| author_sort | Małgorzata Ligowska-Marzęta |
| collection | DOAJ |
| description | Biocides are chemical compounds widely used for sterilization and disinfection. The aim of this study was to examine whether exposure to subinhibitory biocide concentrations influenced transcriptional expression of genes that could improve a pathogen’s drug resistance or fitness. We used DNA microarrays to investigate the transcriptome of the uropathogenic <i>Escherichia coli</i> strain CFT073 in response to prolonged exposure to subinhibitory concentrations of four biocides: benzalkonium chloride, chlorhexidine, hydrogen peroxide and triclosan. Transcription of a gene involved in polymyxin resistance, <i>arnT</i>, was increased after treatment with benzalkonium chloride. However, pretreatment of the bacteria with this biocide did not result in cross-resistance to polymyxin in vitro. Genes encoding products related to transport formed the functional group that was most affected by biocides, as 110 out of 884 genes in this category displayed altered transcription. Transcripts of genes involved in cysteine uptake, sulfate assimilation, dipeptide transport, as well as cryptic phage genes were also more abundant in response to several biocides. Additionally, we identified groups of genes with transcription changes unique to single biocides that might include potential targets for the biocides. The biocides did not increase the resistance potential of the pathogen to other antimicrobials. |
| first_indexed | 2024-12-11T13:25:21Z |
| format | Article |
| id | doaj.art-2d6765576f1a481183d23bf5e93ea37f |
| institution | Directory Open Access Journal |
| issn | 2079-6382 |
| language | English |
| last_indexed | 2024-12-11T13:25:21Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Antibiotics |
| spelling | doaj.art-2d6765576f1a481183d23bf5e93ea37f2022-12-22T01:05:34ZengMDPI AGAntibiotics2079-63822019-09-018416710.3390/antibiotics8040167antibiotics8040167Comparison of Gene Expression Profiles of Uropathogenic <i>Escherichia Coli</i> CFT073 after Prolonged Exposure to Subinhibitory Concentrations of Different BiocidesMałgorzata Ligowska-Marzęta0Viktoria Hancock1Hanne Ingmer2Frank M. Aarestrup3Department of Bacteria, Parasites and Fungi, Statens Serum Institut, 2300 Copenhagen, DenmarkRenal Research & Innovation, Baxter International Inc., SE-220 10 Lund, SwedenDepartment of Veterinary and Animal Sciences, University of Copenhagen, 1870 Frederiksberg, DenmarkResearch Group for Genomic Epidemiology, National Food Institute, Technical University of Denmark, 2800 Kgs. Lyngby, DenmarkBiocides are chemical compounds widely used for sterilization and disinfection. The aim of this study was to examine whether exposure to subinhibitory biocide concentrations influenced transcriptional expression of genes that could improve a pathogen’s drug resistance or fitness. We used DNA microarrays to investigate the transcriptome of the uropathogenic <i>Escherichia coli</i> strain CFT073 in response to prolonged exposure to subinhibitory concentrations of four biocides: benzalkonium chloride, chlorhexidine, hydrogen peroxide and triclosan. Transcription of a gene involved in polymyxin resistance, <i>arnT</i>, was increased after treatment with benzalkonium chloride. However, pretreatment of the bacteria with this biocide did not result in cross-resistance to polymyxin in vitro. Genes encoding products related to transport formed the functional group that was most affected by biocides, as 110 out of 884 genes in this category displayed altered transcription. Transcripts of genes involved in cysteine uptake, sulfate assimilation, dipeptide transport, as well as cryptic phage genes were also more abundant in response to several biocides. Additionally, we identified groups of genes with transcription changes unique to single biocides that might include potential targets for the biocides. The biocides did not increase the resistance potential of the pathogen to other antimicrobials.https://www.mdpi.com/2079-6382/8/4/167biocidesuropathogenic <i>escherichia coli</i>transcriptional responsepolymyxin |
| spellingShingle | Małgorzata Ligowska-Marzęta Viktoria Hancock Hanne Ingmer Frank M. Aarestrup Comparison of Gene Expression Profiles of Uropathogenic <i>Escherichia Coli</i> CFT073 after Prolonged Exposure to Subinhibitory Concentrations of Different Biocides Antibiotics biocides uropathogenic <i>escherichia coli</i> transcriptional response polymyxin |
| title | Comparison of Gene Expression Profiles of Uropathogenic <i>Escherichia Coli</i> CFT073 after Prolonged Exposure to Subinhibitory Concentrations of Different Biocides |
| title_full | Comparison of Gene Expression Profiles of Uropathogenic <i>Escherichia Coli</i> CFT073 after Prolonged Exposure to Subinhibitory Concentrations of Different Biocides |
| title_fullStr | Comparison of Gene Expression Profiles of Uropathogenic <i>Escherichia Coli</i> CFT073 after Prolonged Exposure to Subinhibitory Concentrations of Different Biocides |
| title_full_unstemmed | Comparison of Gene Expression Profiles of Uropathogenic <i>Escherichia Coli</i> CFT073 after Prolonged Exposure to Subinhibitory Concentrations of Different Biocides |
| title_short | Comparison of Gene Expression Profiles of Uropathogenic <i>Escherichia Coli</i> CFT073 after Prolonged Exposure to Subinhibitory Concentrations of Different Biocides |
| title_sort | comparison of gene expression profiles of uropathogenic i escherichia coli i cft073 after prolonged exposure to subinhibitory concentrations of different biocides |
| topic | biocides uropathogenic <i>escherichia coli</i> transcriptional response polymyxin |
| url | https://www.mdpi.com/2079-6382/8/4/167 |
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