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Phage therapy: Should bacterial resistance to phages be a concern, even in the long run?

Anni-Maria Ormälä1, Matti Jalasvuori

  • 1Department of Biosciences, University of Helsinki; Helsinki, Finland.

Bacteriophage
|July 3, 2013
PubMed

Insights

Bacteriophage therapy offers a promising alternative to antibiotics. Despite rapid lab resistance, environmental phages can infect bacteria without recent co-evolution, suggesting long-term phage therapy effectiveness.

Area of Science:

  • Microbiology
  • Evolutionary Biology
  • Infectious Diseases

Background:

  • Bacteriophage therapy uses viruses to kill bacteria, presenting an alternative to antibiotics.
  • Antibiotic resistance is a significant global health challenge.
  • Bacterial resistance to phages can emerge rapidly in laboratory settings.

Purpose of the Study:

  • To investigate the potential for long-term bacterial resistance to bacteriophage therapy.
  • To assess whether environmental phages can overcome resistance in bacteria lacking co-evolutionary history.

Main Methods:

  • Analysis of global phage infection patterns.
  • Evaluation of bacterial evolution in response to phage pressure.
  • Comparison of phage infectivity against bacteria with and without recent co-evolution.

Main Results:

  • Bacterial resistance to phages has been a minor issue in clinical phage therapy to date.
  • Phages are recognized as drivers of bacterial evolution.
  • Environmental phages demonstrate the ability to infect bacteria with which they lack recent co-evolutionary history.

Conclusions:

  • Long-term bacterial resistance to phage therapy may not be a significant concern.
  • The broad infectivity of environmental phages suggests sustained efficacy.
  • Phage therapy remains a viable alternative to conventional antibiotics.
Keywords:
antibiotic resistanceecologyevolutionphage resistancephage-therapy

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