Bacterial infections pose a serious public health concern, especially when an infectious disease has a multidrug resistant causative agent. Such multidrug resistant bacteria can compromise the clinical utility of major chemotherapeutic antimicrobial agents. Drug and multidrug resistant bacteria harbor several distinct molecular mechanisms for resistance. Bacterial antimicrobial agent efflux pumps represent a major mechanism of clinical resistance. The major facilitator superfamily (MFS) is one of the largest groups of solute transporters to date and includes a significant number of bacterial drug and multidrug efflux pumps. We review recent work on the modulation of multidrug efflux pumps, paying special attention to those transporters belonging primarily to the MFS.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4347946PMC
http://dx.doi.org/10.1155/2013/204141DOI Listing

Publication Analysis

Top Keywords

efflux pumps
16
multidrug resistant
12
major facilitator
8
facilitator superfamily
8
resistant bacteria
8
drug multidrug
8
multidrug efflux
8
multidrug
6
modulation bacterial
4
bacterial multidrug
4

Similar Publications

Degradation of plasmid-mediated resistance genes in poultry slaughterhouse wastewater employing a UV/HO process: A metagenomic approach.

Chemosphere

January 2025

Instituto Nacional de Controle de Qualidade em Saúde, Fundação Oswaldo Cruz, Avenida Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, Brazil.

Poultry slaughterhouse effluents are important hotspots for the spread of both antibiotic-resistant bacteria (ARBs) and antibiotic resistance genes (ARGs), contributing to the antimicrobial resistance (AMR). This study reports a novel investigation to assess the effects of UV/HO treatment on the removal of metaplasmidome-mediated ARGs from poultry slaughterhouse effluents. The effluent samples were subjected at 0.

View Article and Find Full Text PDF

Multidrug-resistant organisms are bacteria that are no longer controlled or killed by specific drugs. One of two methods causes bacteria multidrug resistance (MDR); first, these bacteria may disguise multiple cell genes coding for drug resistance to a single treatment on resistance (R) plasmids. Second, increased expression of genes coding for multidrug efflux pumps, which extrude many drugs, can cause MDR.

View Article and Find Full Text PDF

Defense mechanisms of against antibiotics: a review.

Front Antibiot

September 2024

Department of Agriculture, Food, and Resource Sciences, University of Maryland Eastern Shore, Princess Anne, MD, United States.

is a foodborne pathogenic bacterium that causes salmonellosis worldwide. Also, is considered a serious problem for food safety and public health. Several antimicrobial classes including aminoglycosides, tetracyclines, phenols, and β-Lactams are used to treat infections.

View Article and Find Full Text PDF

Mg-dependent mechanism of environmental versatility in a multidrug efflux pump.

Structure

January 2025

Department of Chemistry, Britannia House, 7 Trinity Street, King's College London, London, SE1 1DB, UK; School of Biological Sciences, University of Southampton, Southampton, SO17 1BJ, UK. Electronic address:

Tripartite resistance nodulation and cell division multidrug efflux pumps span the periplasm and are major drivers of multidrug resistance among gram-negative bacteria. Cations, such as Mg, become concentrated within the periplasm and, in contrast to the cytoplasm, its pH is sensitive to conditions outside the cell. Here, we reveal an interplay between Mg and pH in modulating the structural dynamics of the periplasmic adapter protein, AcrA, and its function within the prototypical AcrAB-TolC multidrug pump from Escherichia coli.

View Article and Find Full Text PDF

is a well-known opportunistic pathogen, responsible for various nosocomial infections. UOL-KIMZ-24 was previously isolated from a clinical specimen, collected from Lahore General Hospital, Lahore (LGH), Pakistan, dated 3rd March, 2022. During the initial screening for antimicrobial susceptibility, the UOL-KIMZ-24 was found a multiple drug resistant (MDR) strain.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!