1. Figure 1. Ten chemotherapeutic drugs induce the bacterial SOS response
Figure 1. Ten chemotherapeutic drugs induce the bacterial SOS response. (a) Classification of the 39 compounds tested. ...
Figure 1. Ten chemotherapeutic drugs induce the bacterial SOS response. (a) Classification of the 39 compounds tested. (b) The first column shows the result of the screening of SOS-response induction in E. coli WT (black box, positive; light grey box, negative). The second column shows the intensity of the induction, which is the ratio of the mean fluorescence of E. coli WT induced (at the concentration shown in the third column) by a chemotherapeutic drug versus those that were not. n ≥ 3; two-sided Student’s t-tests using 1.0 as comparator. The fourth column shows the drug concentrations used for experiments with pathogenic species. The fifth column shows the range of therapeutic concentrations, retrieved from the literature (Table 1). The monoclonal antibody trastuzumab was used as a negative control (data not shown).
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2. Figure 2. Eight chemotherapeutic drugs enhance the frequency of mutation in E. coli, mostly through the activation of ...
Figure 2. Eight chemotherapeutic drugs enhance the frequency of mutation in E. coli, mostly through the activation of the SOS response. The frequency of emergence of rifampicin-resistant mutants is shown from E. coli WT and E. coli ΔSOS after induction with chemotherapeutic drugs at therapeutic concentrations (from Figure 1b). Ratios of the geometric means of the frequency of resistant mutants with error bars representing the 95% CI are shown. n ≥ 3; two-sided Student’s t-tests using 1.0 (broken line) as comparator. The monoclonal antibody trastuzumab was used as a negative control (data not shown).
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J Antimicrob Chemother, dkz070,
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3. Figure 3. Therapeutic concentrations of dacarbazine, azacitidine and streptozotocin enhance the emergence of ...
Figure 3. Therapeutic concentrations of dacarbazine, azacitidine and streptozotocin enhance the emergence of antibiotic-resistant mutants of bacterial pathogens. The value shown on the y-axis is the ratio of the frequencies of emergence of imipenem-resistant P. aeruginosa, ciprofloxacin-resistant S. aureus and cefotaxime-resistant E. cloacae, with and without induction with chemotherapeutic drugs at the concentrations given in Figure 1(b). Ratios of the geometric means of the frequency of resistant mutants with error bars representing the 95% CI are shown. n ≥ 3; two-sided Student’s t-tests using 1.0 (broken line) as comparator.
Unless provided in the caption above, the following copyright applies to the content of this slide: © The Author(s) Published by Oxford University Press on behalf of the British Society for Antimicrobial Chemotherapy. All rights reserved. For permissions, please article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (
J Antimicrob Chemother, dkz070,
The content of this slide may be subject to copyright: please see the slide notes for details.