{"title":"Transcriptional expression analysis of fosfomycin resistance determinants in Escherichia coli with MDR trait","authors":"Jayalaxmi Wangkheimayum , Ng Lakhitombi Chanu , Debadatta Dhar Chanda , Amitabha Bhattacharjee","doi":"10.1016/j.ijmmb.2025.100859","DOIUrl":null,"url":null,"abstract":"<div><div>Fosfomycin is a therapeutic alternative for urinary tract infection (UTI). <em>Escherichia coli</em> produces fosfomycin modifying enzymes (<em>fos</em> genes) that is the contributor for resistance to this group of antimicrobials. The current research work characterizes fosfomycin resistance determinants in <em>Escherichia coli</em> and their transferability. Fosfomycin modifying enzyme genes were found to be carried within a plasmid of inc type FIC. Under subinhibitory concentration of fosfomycin, transcriptional expression revealed upregulation for <em>fosA10, fosA8, fosA</em>, and <em>fosA2</em>.The current study emphasizes the necessity of ongoing surveillance of <em>E. coli</em> resistance patterns and transmission dynamics, particularly regards to fosfomycin, to implement the best possible treatment strategy.</div></div>","PeriodicalId":13284,"journal":{"name":"Indian Journal of Medical Microbiology","volume":"55 ","pages":"Article 100859"},"PeriodicalIF":1.4000,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Indian Journal of Medical Microbiology","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0255085725000726","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"IMMUNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Fosfomycin is a therapeutic alternative for urinary tract infection (UTI). Escherichia coli produces fosfomycin modifying enzymes (fos genes) that is the contributor for resistance to this group of antimicrobials. The current research work characterizes fosfomycin resistance determinants in Escherichia coli and their transferability. Fosfomycin modifying enzyme genes were found to be carried within a plasmid of inc type FIC. Under subinhibitory concentration of fosfomycin, transcriptional expression revealed upregulation for fosA10, fosA8, fosA, and fosA2.The current study emphasizes the necessity of ongoing surveillance of E. coli resistance patterns and transmission dynamics, particularly regards to fosfomycin, to implement the best possible treatment strategy.
期刊介绍:
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