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Updated: Oct 4, 2025

Author Spotlight: Advancing Antibiotic Resistance Research Using an Efflux-Deficient Bacterial Strain and a Single-Copy Gene Expression System
05:06

Author Spotlight: Advancing Antibiotic Resistance Research Using an Efflux-Deficient Bacterial Strain and a Single-Copy Gene Expression System

Published on: January 5, 2024

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Microbial resistance: The role of efflux pump superfamilies and their respective substrates

Ítalo Rodrigues Garcia1, Francisca Adilfa de Oliveira Garcia2, Pedro Silvino Pereira1

  • 1Department of Biological Sciences, Regional University of Cariri, 63105-000, Brazil.

Life Sciences
|February 12, 2022
PubMed

Insights

Microorganism antibiotic resistance is a major concern. Efflux pumps, crucial for microbial survival, contribute significantly to multidrug resistance, posing challenges to effective clinical treatments.

Area of Science:

  • Microbiology
  • Molecular Biology
  • Pharmacology

Background:

  • Antibiotic resistance in microorganisms is a growing global health crisis.
  • Efflux pumps are key mechanisms enabling microbial survival against antibiotics.
  • These pumps are carrier proteins facilitating the expulsion of antimicrobial compounds.

Purpose of the Study:

  • To conduct a comprehensive bibliographic review of efflux pump superfamilies.
  • To elucidate their composition, gene expression, substrates, and role in intrinsic resistance.
  • To understand the contribution of efflux pumps to multidrug resistance.

Main Methods:

  • Systematic literature search across Medline, Pubmed, ScienceDirect, and Scielo databases.
  • Keywords included 'efflux pump', 'expression', 'pump inhibitors', and 'efflux superfamily'.
  • Inclusion criteria: articles published 2000-2020 and textbooks; exclusion criteria: duplicates and academic collections.

Main Results:

  • Analysis of 312 selected articles and 7 book chapters from an initial pool of 139,615.
  • Chromosomes and genetic elements harbor genes encoding efflux pumps, driving multidrug resistance.
  • Antibiotics acting as substrates can upregulate the expression of these resistance genes.

Conclusions:

  • Efflux pumps are critical determinants of multidrug resistance in microorganisms.
  • Understanding the interplay between antibiotics and pump expression is vital for combating resistance.
  • Efflux pump systems represent a significant challenge in modern medicine and drug development.
Keywords:
AntibioticsEffluxInhibitorsSuperfamilies

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