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MetabolomicsCell Membrane Remodeling Mediates Polymyxin B Resistance in Klebsiella pneumoniae: An Integrated Proteomics and Metabolomics Study
Polymyxin B (PB) is introduced into the clinic as the last-line therapy against carbapenem-resistant Klebsiella pneumoniae (CRKP). Unfortunately, increased resistance to PB in Klebsiella pneumoniae (K. pneumoniae) has threatened global health. Resistance of K. pneumoniae ...
2022-03-04 | MTBLS4132 | MetaboLights
TranscriptomicsResponse of Burkholderia cenocepacia to polymyxin B
Response of three strains, K56-2, RSF34, and RSF34 4000B to polymyxin B and baseline changes between the strains
ORGANISM(S): Burkholderia cenocepacia 
2011-06-01 | E-MTAB-720 | biostudies-arrayexpress
MetabolomicsComparative metabolomics and transcriptomics revealed multiple pathways associated with polymyxin killing in Pseudomonas aeruginosa
Polymyxins are the last-line antibiotics against multidrug-resistant Pseudomonas aeruginosa however, resistance to polymyxins has been increasingly reported. Therefore, understanding the mechanisms of polymyxin activity and resistance is crucial for preserving their clinical usefulness. This study e...
2018-11-14 | MTBLS751 | MetaboLights
MetabolomicsMetabolic Rewiring of Bacterial Subpopulations Governs Polymyxin Responses in Acinetobacter baumannii
Polymyxins are often last-resort antibiotics against high-priority Gram-negative pathogens, particularly Acinetobacter baumannii. However, most mechanistic studies to date have overlooked the heterogeneity within bacterial populations during polymyxin treatment. Using time-lapse imaging and propidiu...
2026-07-27 | MTBLS14745 | MetaboLights
MetabolomicsGenome-scale metabolic modelling of responses to polymyxins in Pseudomonas aeruginosa
Background: Pseudomonas aeruginosa often causes multidrug-resistant infections in immunocompromised patients and polymyxins are often used as the last-line therapy. Alarmingly, resistance to polymyxins has been increasingly reported worldwide recently. To rescue this last-resort class of antibiotics...
2018-02-28 | MTBLS630 | MetaboLights
MetabolomicsLactate-driven lysine lactylation mediates high-level colistin resistance in Salmonella
Intracellular pathogens are particularly refractory to antibiotic eradication, leading to persistent and relapsing infections. However, how intracellular metabolic microenvironments shape antibiotic resistance phenotypes remains poorly understood. Here we delineate a metabolic-regulatory axis wherei...
2026-06-17 | MTBLS14781 | MetaboLights
MetabolomicsA synthetic antibiotic class with a deeply-optimized design for overcoming bacterial resistance

The lack of new drugs that are effective against antibiotic-resistant bacteria has caused increasing concern in global public health. Based on this study, we report development of a modified antimicrobial drug through structure-based drug design (SBDD) and modular synthesis. The optimal modified ...

2024-07-03 | MTBLS10516 | MetaboLights
MetabolomicsOriginal data of bacterial antibiotic resistance lipidomics
Plasmid-mediated dissemination of mcr genes has severely compromised colistin efficacy, necessitating adjuvants that restore antibacterial potency without exacerbating toxicity. Despite their essential roles in bacterial survival and virulence, metal ion acquisition systems remain underexplored as t...
2026-08-13 | MTBLS15318 | MetaboLights
ProteomicsPolymyxin resistance in colibactin-producing Escherichia coli induces host genotoxicity
The complex reservoir of metabolite-producing bacteria in the gastrointestinal tract contributes tremendously to human health and disease. Bacterial composition, and by extension gut metabolomic composition, is undoubtably influenced by the use of modern antibiotics. Herein, we demonstrate that poly...
ORGANISM(S): Escherichia coli 
2021-07-15 | PXD025088 | Pride
Escherichia coli Colibactin Antimicrobial resistance 
ProteomicsTranscriptomics and mutagenesis analysis uncover key mechanisms involved in polymyxin B resistance and heteroresistance of the neonatal sepsis pathogen Enterobacter bugandensis
Enterobacter bugandensis is one of species from the E. cloacae complex (ECC) that has been predominantly associated to neonatal sepsis. A major concern with E. bugandensis and ECC bacteria in general is the frequent appearance of multidrug resistant isolates including those resistant to last-resort...
ORGANISM(S): Enterobacter bugandensis 
2024-04-05 | PXD042287 | Pride
Enterobacter bugandensis Polymyxin b resistance 
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