Efflux pump inhibiting properties of racemic phenothiazine derivatives and their enantiomers on the bacterial AcrAB-TolC system

G Spengler, D Takács, Á Horváth, ÁM Szabó, Z Riedl… - in vivo, 2014 - iv.iiarjournals.org
Background/Aim: Bacterial resistance to antibiotics has become a serious problem in
antibacterial chemotherapy and resistance of bacteria to chemically-unrelated anti-microbial …

Evaluation of forty new phenothiazine derivatives for activity against intrinsic efflux pump systems of reference Escherichia coli, Salmonella Enteritidis, Enterococcus …

D Takacs, P Cerca, A Martins, Z Riedl, G Hajos… - in vivo, 2011 - iv.iiarjournals.org
Background: Because phenothiazines inhibit efflux pumps of bacteria, forty new
phenothiazine derivatives were tested for their inhibition of the efflux pump systems of Gram …

Novel piperazine arylideneimidazolones inhibit the AcrAB-TolC pump in Escherichia coli and simultaneously act as fluorescent membrane probes in a combined real …

JA Bohnert, S Schuster, WV Kern, T Karcz… - Antimicrobial agents …, 2016 - Am Soc Microbiol
In this study, we tested five compounds belonging to a novel series of piperazine
arylideneimidazolones for the ability to inhibit the AcrAB-TolC efflux pump. The …

[HTML][HTML] Sodium Malonate Inhibits the AcrAB-TolC Multidrug Efflux Pump of Escherichia coli and Increases Antibiotic Efficacy

A Cauilan, C Ruiz - Pathogens, 2022 - mdpi.com
There is an urgent need to find novel treatments for combating multidrug-resistant bacteria.
Multidrug efflux pumps that expel antibiotics out of cells are major contributors to this …

[HTML][HTML] Suppl 1: Pimozide inhibits the AcrAB-TolC efflux pump in Escherichia coli

JA Bohnert, S Schuster, WV Kern - The open microbiology journal, 2013 - ncbi.nlm.nih.gov
Efflux pump inhibitors (EPIs) are attractive compounds to reverse multidrug-resistance in
clinically relevant bacterial pathogens. In this study we tested the ability of the neuroleptic …

[HTML][HTML] Efflux pump blockers in Gram-negative bacteria: The new generation of hydantoin based-modulators to improve antibiotic activity

E Otręebska-Machaj, J Chevalier, J Handzlik… - Frontiers in …, 2016 - frontiersin.org
Multidrug resistant (MDR) bacteria are an increasing health problem with the shortage of
new active antibiotic agents. Among effective mechanisms that contribute to the spread of …

Efflux pump overexpression profiling in Acinetobacter baumannii and study of new 1-(1-naphthylmethyl)-piperazine analogs as potential efflux inhibitors

M Choquet, E Lohou, E Pair, P Sonnet… - Antimicrobial agents …, 2021 - Am Soc Microbiol
Overexpression of efflux pumps extruding antibiotics currently used for the treatment of
Acinetobacter baumannii infections has been described as an important mechanism …

Biological activity of twenty-three hydantoin derivatives on intrinsic efflux pump system of Salmonella enterica serovar Enteritidis NCTC 13349

L Machado, G Spengler, M Evaristo, J Handzlik… - in vivo, 2011 - iv.iiarjournals.org
Background: Hydantoin derivatives have important biochemical and pharmacological
properties. In the present study, 23 hydantoin compounds were evaluated for their efflux …

The in-vitro antimicrobial effect of non-antibiotics and putative inhibitors of efflux pumps on Pseudomonas aeruginosa and Staphylococcus aureus

O Hendricks, TS Butterworth, JE Kristiansen - International journal of …, 2003 - Elsevier
The anti-microbial activity of six non-antibiotics (one amino-ethylchloride, three
phenothiazines, two tricyclic antidepressives) were tested on 20 clinical isolates of …

Characterization of a novel pyranopyridine inhibitor of the AcrAB efflux pump of Escherichia coli

TJ Opperman, SM Kwasny, HS Kim… - Antimicrobial agents …, 2014 - Am Soc Microbiol
Members of the resistance-nodulation-division (RND) family of efflux pumps, such as AcrAB-
TolC of Escherichia coli, play major roles in multidrug resistance (MDR) in Gram-negative …