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Development of Antibiotic Resistance01:30

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Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
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Time-Lapse Epifluorescence Microscopy Imaging of Pseudomonas aeruginosa and Staphylococcus aureus Heterogeneous Phenotypes
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Antibiotic tolerance: targeting bacterial survival.

Lucas Boeck1

  • 1Department of Biomedicine, University Basel, Basel, Switzerland; Clinic of Pulmonary Medicine, University Hospital Basel, Basel, Switzerland.

Current Opinion in Microbiology
|May 28, 2023
PubMed
Summary
This summary is machine-generated.

Bacterial tolerance and persisters allow survival during antibiotic treatment, contributing to treatment failures. New viability measures are critical to understand and combat these survival strategies, improving antibiotic efficacy and reducing resistance.

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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Pharmacology

Background:

  • Antimicrobial susceptibility testing is crucial for effective antibiotic therapy.
  • High rates of antibiotic treatment failure and clinical trial attrition indicate limitations in current approaches.
  • Bacterial survival strategies beyond resistance, such as tolerance and persistence, are often overlooked.

Purpose of the Study:

  • To highlight the importance of bacterial tolerance and persisters in antibiotic treatment failures.
  • To emphasize the need for robust and scalable bacterial viability measures.
  • To define the clinical relevance of bacterial survivors in various infections.

Main Methods:

  • This study is a conceptual review and does not involve primary data collection.
  • It synthesizes existing knowledge on bacterial survival strategies and susceptibility testing.
  • It proposes the development of new tools for measuring bacterial viability.

Main Results:

  • Bacterial tolerance and persister cells represent a significant, yet understudied, mechanism of antibiotic survival.
  • Current antimicrobial susceptibility testing does not adequately account for these survival strategies.
  • Addressing tolerance and persistence could bridge the gap between in vitro susceptibility and in vivo efficacy.

Conclusions:

  • Developing methods to measure bacterial viability, including tolerance and persistence, is critical for improving antibiotic treatments.
  • Understanding and targeting bacterial survivors can reduce treatment failures and slow the evolution of antibiotic resistance.
  • This approach could lead to improved drug design and development strategies.