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Полиамины как регуляторы биоплёнкообразования природных изолятов Escherichia coli с разной степенью устойчивости к фторхинолонам

Полиамины как регуляторы биоплёнкообразования природных изолятов Escherichia coli с разной степенью устойчивости к фторхинолонам

Abstract

На основе анализа природных штаммов Escherichia coli показано, что микроорганизмы, устойчивые к действию фторхинолонов, обладают повышенной способностью к биоплёнкообразованию и высокой активностью орнитиндекарбоксилазы ключевого фермента системы синтеза полиаминов. Установлено, что сублетальные концентрации фторхинолонов стимулируют биоплёнкообразование. Полиамины путресцин и спермидин оказывают стимулирующее действие на способность к биоплёнкообразованию у штаммов с разной степенью устойчивости к фторхинолонам как в присутствии антибиотика, так и в его отсутствие.

Fluoroquinolone-resistant Escherichia coli isolates were shown to have an elevated ability to form biofilms and possess by increased activity of ornithine decarboxylase, the key enzyme of polyamine synthesis. Upregulation of biofilm formation under sublethal fluoroquinolone treatment was observed. Putrescine and spermidine were found to have positive effect on biofilm formation in strains with different levels of levofloxacin resistance in both the presence of this antibiotic and its absence.

Keywords

БИОПЛЁНКООБРАЗОВАНИЕ, АНТИБИОТИКОРЕЗИСТЕНТНОСТЬ, ПОЛИАМИНЫ, ОРНИТИНДЕКАРБОКСИЛАЗА, ЛЕВОФЛОКСАЦИН

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold