Effects of surotomycin on Clostridium difficile viability and toxin production in vitro.

Abstract:

:The increasing incidence and severity of infection by Clostridium difficile have stimulated attempts to develop new antimicrobial therapies. We report here the relative abilities of two antibiotics (metronidazole and vancomycin) in current use for treating C. difficile infection and of a third antimicrobial, surotomycin, to kill C. difficile cells at various stages of development and to inhibit the production of the toxin proteins that are the major virulence factors. The results indicate that none of the drugs affects the viability of spores at 8× MIC or 80× MIC and that all of the drugs kill exponential-phase cells when provided at 8× MIC. In contrast, none of the drugs killed stationary-phase cells or inhibited toxin production when provided at 8× MIC and neither vancomycin nor metronidazole killed stationary-phase cells when provided at 80× MIC. Surotomycin, on the other hand, did kill stationary-phase cells when provided at 80× MIC but did so without inducing lysis.

authors

Bouillaut L,McBride S,Sorg JA,Schmidt DJ,Suarez JM,Tzipori S,Mascio C,Chesnel L,Sonenshein AL

doi

10.1128/AAC.00275-15

subject

Has Abstract

pub_date

2015-07-01 00:00:00

pages

4199-205

issue

7

eissn

0066-4804

issn

1098-6596

pii

AAC.00275-15

journal_volume

59

pub_type

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