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In vitro activity o...
In vitro activity of apramycin against multidrug-, carbapenem- and aminoglycoside-resistant Enterobacteriaceae and Acinetobacter baumannii
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- Juhas, Mario (författare)
- Univ Zurich, Inst Med Microbiol, Gloriastr 30, CH-8006 Zurich, Switzerland
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- Widlake, Emma (författare)
- Cardiff Univ, Sch Med, Div Infect & Immun, Cardiff CF14 4XN, S Glam, Wales
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- Teo, Jeanette (författare)
- Natl Univ Singapore Hosp, Dept Lab Med, 5 Lower Kent Ridge Rd, Singapore 119074, Singapore
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- Huseby, Douglas L (författare)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi
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- Tyrrell, Jonathan M. (författare)
- Cardiff Univ, Sch Med, Div Infect & Immun, Cardiff CF14 4XN, S Glam, Wales
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- Polikanov, Yury S. (författare)
- Univ Illinois, Coll Liberal Arts & Sci, Dept Biol Sci, 900 South Ashland Ave,MBRB 4170, Chicago, IL 60607 USA
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- Ercan, Onur (författare)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi
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- Petersson, Anna (författare)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi
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- Cao, Sha (författare)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi
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- Aboklaish, Ali F. (författare)
- Cardiff Univ, Sch Med, Div Infect & Immun, Cardiff CF14 4XN, S Glam, Wales
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- Rominski, Anna (författare)
- Univ Zurich, Inst Med Microbiol, Gloriastr 30, CH-8006 Zurich, Switzerland
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- Crich, David (författare)
- Wayne State Univ, Dept Chem, 5101 Cass Ave, Detroit, MI 48202 USA
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- Bottger, Erik C. (författare)
- Univ Zurich, Inst Med Microbiol, Gloriastr 30, CH-8006 Zurich, Switzerland
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- Walsh, Timothy R. (författare)
- Cardiff Univ, Sch Med, Div Infect & Immun, Cardiff CF14 4XN, S Glam, Wales
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- Hughes, Diarmaid, 1956- (författare)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi
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- Hobbie, Sven N. (författare)
- Univ Zurich, Inst Med Microbiol, Gloriastr 30, CH-8006 Zurich, Switzerland
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(creator_code:org_t)
- 2019-01-09
- 2019
- Engelska.
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Ingår i: Journal of Antimicrobial Chemotherapy. - : OXFORD UNIV PRESS. - 0305-7453 .- 1460-2091. ; 74:4, s. 944-952
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Abstract
Ämnesord
Stäng
- Objectives: Widespread antimicrobial resistance often limits the availability of therapeutic options to only a few last-resort drugs that are themselves challenged by emerging resistance and adverse side effects. Apramycin, an aminoglycoside antibiotic, has a unique chemical structure that evades almost all resistance mechanisms including the RNA methyltransferases frequently encountered in carbapenemase-producing clinical isolates. This study evaluates the in vitro activity of apramycin against multidrug-, carbapenem- and aminoglycoside-resistant Enterobacteriaceae and Acinetobacter baumannii, and provides a rationale for its superior antibacterial activity in the presence of aminoglycoside resistance determinants.Methods: A thorough antibacterial assessment of apramycin with 1232 clinical isolates from Europe, Asia, Africa and South America was performed by standard CLSI broth microdilution testing. WGS and susceptibility testing with an engineered panel of aminoglycoside resistance-conferring determinants were used to provide a mechanistic rationale for the breadth of apramycin activity.Results: MIC distributions and MIC90 values demonstrated broad antibacterial activity of apramycin against Escherichia coli, Klebsiella pneumoniae, Enterobacter spp., Morganella morganii, Citrobacter freundii, Providencia spp., Proteus mirabilis, Serratia marcescens and A. baumannii. Genotypic analysis revealed the variety of aminoglycoside-modifying enzymes and rRNA methyltransferases that rendered a remarkable proportion of clinical isolates resistant to standard-of-care aminoglycosides, but not to apramycin. Screening a panel of engineered strains each with a single well-defined resistance mechanism further demonstrated a lack of cross-resistance to gentamicin, amikacin, tobramycin and plazomicin.Conclusions: Its superior breadth of activity renders apramycin a promising drug candidate for the treatment of systemic Gram-negative infections that are resistant to treatment with other aminoglycoside antibiotics.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Infektionsmedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Infectious Medicine (hsv//eng)
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Juhas, Mario
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Widlake, Emma
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Teo, Jeanette
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Huseby, Douglas ...
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Tyrrell, Jonatha ...
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Polikanov, Yury ...
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visa fler...
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Ercan, Onur
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Petersson, Anna
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Cao, Sha
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Aboklaish, Ali F ...
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Rominski, Anna
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Crich, David
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Bottger, Erik C.
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Walsh, Timothy R ...
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Hughes, Diarmaid ...
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Hobbie, Sven N.
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