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<p><i>Enterobacter asburiae</i> (<i>E. asburiae</i>) is a gram-negative rod-shaped bacterium which has emerging significance as an opportunistic pathogen having high virulence pattern and drug resistant properties. In this study, we present the detailed analysis of the whole genome sequence of a multidrug-resistant (MDR) <i>E. asburiae</i> strain BDW1M3 from Bangladesh. The isolate was collected from an infected foot wound of a diabetic foot ulcer patient. Through sophisticated genomic techniques encompassing whole genome sequencing and in-depth bioinformatic analyses, this research unveils a profound understanding of the isolate’s antimicrobial resistance patterns, virulence determinants, biosynthetic gene clusters, metabolic pathways and pathogenic potential. The isolate displayed resistance to Ampicillin, Fosfomycin, Cefoxitin, Tigecycline, Meropenem, Linezolid, Vancomycin antibiotics and demonstrated the capacity for biofilm formation. Several antimicrobial resistance genes such as <i>bla</i><sub>ACT−2,</sub><i>fos</i>A2, <i>bae</i>R, <i>qnr</i>E2, <i>van</i>A and numbers of virulence genes including <i>yba</i>J, <i>csr</i>A, <i>bar</i>A, <i>uvr</i>Y, <i>pga</i>D, <i>hly</i>D, <i>hly</i>C, <i>ter</i>C, <i>pur</i>D were detected. Metal resistance genes investigation revealed the presence of cusCFBA operon system, and many other genes including <i>znt</i>A, <i>zit</i>B, <i>czr</i>B. Prophage region of <i>Myoviridae</i> was detected. Comparative genomics with 47 whole genome sequence (<i>n</i> = 47) shed light on the genetic diversity of <i>E. asburiae</i> strains from diverse sources and countries, with a notable observation that strains from both human and non-human origins exhibited significant pathogenicity potential, genomic and phylogenomic relations hinting at potential cross-species transmission. Pangenome analysis indicated toward an expanding pangenome of <i>E. asburiae</i>. Further research and in-depth comprehensive studies are required to investigate the prevalence of <i>E. asburiae</i> in Bangladesh and emphasize towards unraveling the bacterium’s inherent pathogenic potential and the intricate molecular mechanisms that underlie its resistance traits and virulence properties.</p>

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First report on comprehensive genomic analysis of a multidrug-resistant Enterobacter asburiae isolated from diabetic foot infection from Bangladesh

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年1月2日

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  • Md. Rafiul Islam,
  • Spencer Mark Mondol,
  • Md. Azad Hossen,
  • Mst. Poli Khatun,
  • Shahjada Selim,
  • Amiruzzaman,
  • Donald James Gomes,
  • Md. Mizanur Rahaman

摘要

Enterobacter asburiae (E. asburiae) is a gram-negative rod-shaped bacterium which has emerging significance as an opportunistic pathogen having high virulence pattern and drug resistant properties. In this study, we present the detailed analysis of the whole genome sequence of a multidrug-resistant (MDR) E. asburiae strain BDW1M3 from Bangladesh. The isolate was collected from an infected foot wound of a diabetic foot ulcer patient. Through sophisticated genomic techniques encompassing whole genome sequencing and in-depth bioinformatic analyses, this research unveils a profound understanding of the isolate’s antimicrobial resistance patterns, virulence determinants, biosynthetic gene clusters, metabolic pathways and pathogenic potential. The isolate displayed resistance to Ampicillin, Fosfomycin, Cefoxitin, Tigecycline, Meropenem, Linezolid, Vancomycin antibiotics and demonstrated the capacity for biofilm formation. Several antimicrobial resistance genes such as blaACT−2,fosA2, baeR, qnrE2, vanA and numbers of virulence genes including ybaJ, csrA, barA, uvrY, pgaD, hlyD, hlyC, terC, purD were detected. Metal resistance genes investigation revealed the presence of cusCFBA operon system, and many other genes including zntA, zitB, czrB. Prophage region of Myoviridae was detected. Comparative genomics with 47 whole genome sequence (n = 47) shed light on the genetic diversity of E. asburiae strains from diverse sources and countries, with a notable observation that strains from both human and non-human origins exhibited significant pathogenicity potential, genomic and phylogenomic relations hinting at potential cross-species transmission. Pangenome analysis indicated toward an expanding pangenome of E. asburiae. Further research and in-depth comprehensive studies are required to investigate the prevalence of E. asburiae in Bangladesh and emphasize towards unraveling the bacterium’s inherent pathogenic potential and the intricate molecular mechanisms that underlie its resistance traits and virulence properties.