کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2040748 1073127 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bactericidal Antibiotics Induce Toxic Metabolic Perturbations that Lead to Cellular Damage
ترجمه فارسی عنوان
آنتی بیوتیک های باکتریال باعث اختلالات متابولیک سمی می شود که سبب آسیب سلولی می شود
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
چکیده انگلیسی


• Diverse bactericidal antibiotics induced similar metabolic changes
• Bactericidal antibiotics induced biomarkers of oxidative stress
• Bactericidal antibiotics induced dsDNA breaks

SummaryUnderstanding how antibiotics impact bacterial metabolism may provide insight into their mechanisms of action and could lead to enhanced therapeutic methodologies. Here, we profiled the metabolome of Escherichia coli after treatment with three different classes of bactericidal antibiotics (β-lactams, aminoglycosides, quinolones). These treatments induced a similar set of metabolic changes after 30 min that then diverged into more distinct profiles at later time points. The most striking changes corresponded to elevated concentrations of central carbon metabolites, active breakdown of the nucleotide pool, reduced lipid levels, and evidence of an elevated redox state. We examined potential end-target consequences of these metabolic perturbations and found that antibiotic-treated cells exhibited cytotoxic changes indicative of oxidative stress, including higher levels of protein carbonylation, malondialdehyde adducts, nucleotide oxidation, and double-strand DNA breaks. This work shows that bactericidal antibiotics induce a complex set of metabolic changes that are correlated with the buildup of toxic metabolic by-products.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 13, Issue 5, 3 November 2015, Pages 968–980
نویسندگان
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