Persisters: Methods for Isolation and Identifying Contributing Factors--A Review

Sarah E Rowe1, Brian P Conlon1, Iris Keren1

  • 1Antimicrobial Discovery Center, Department of Biology, Northeastern University, 134 Mugar Hall, 360 Huntington Ave., Boston, MA, 02115, USA.

Insights

Persister cells survive lethal antibiotic doses, offering a survival strategy for bacterial populations. This chapter reviews methods for isolating these cells and discusses challenges in understanding how they form.

Area of Science:

  • Microbiology
  • Bacteriology
  • Antibiotic Resistance

Background:

  • Persister cells are a subpopulation of bacteria that survive antibiotic treatment.
  • These cells exhibit a dormant phenotype, contributing to treatment failure and relapse.
  • Understanding persister cells is crucial for developing effective antimicrobial strategies.

Purpose of the Study:

  • To summarize current techniques for isolating bacterial persister cells.
  • To discuss the limitations and challenges in identifying the mechanisms of persister formation.
  • To provide an overview of the field for researchers studying bacterial persistence.

Main Methods:

  • Review of existing literature on persister cell isolation.
  • Analysis of common methodologies used in persister cell research.
  • Discussion of experimental challenges and potential pitfalls.

Main Results:

  • Several techniques exist for persister cell isolation, each with specific advantages and disadvantages.
  • Identifying the precise molecular mechanisms underlying persister formation remains a significant challenge.
  • Current methods may not fully capture the heterogeneity and complexity of persister populations.

Conclusions:

  • Effective isolation of persister cells is essential for studying their biology.
  • Further research is needed to overcome limitations in understanding persister formation mechanisms.
  • Advances in this area could lead to novel therapeutic approaches against persistent bacterial infections.

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