Targeted dual-receptor phage cocktail against Cronobacter sakazakii: insights into phage-host interactions and resistance mechanisms
2024

Phage Cocktail to Fight Cronobacter sakazakii

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Author Information

Author(s): Kim Seongok, Son Bokyung, Kim Yeran, Kim Hyeongsoon, Nam Gahyeon, Shin Hakdong, Ryu Sangryeol

Primary Institution: Sejong University

Hypothesis

Can a phage cocktail effectively control Cronobacter sakazakii by targeting different host receptors?

Conclusion

The phage cocktail targeting distinct host receptors can effectively control C. sakazakii and delay the emergence of resistant mutants.

Supporting Evidence

  • The phage cocktail showed stronger lytic activity than single phage treatments.
  • Phage-resistant mutants exhibited reduced motility and altered LPS structure.
  • The cocktail delayed the emergence of resistant mutants by prolonging growth inhibition.
  • Phage CR8 targets flagella while phage S13 targets LPS as their respective receptors.
  • Resistance development incurs fitness costs, reducing the invasiveness of resistant strains.

Takeaway

Scientists created a special mix of viruses that can kill a harmful germ found in baby formula, helping to keep babies safe.

Methodology

Two phages were isolated and characterized, followed by the development of a phage cocktail and evaluation of its efficacy against C. sakazakii.

Limitations

The study primarily focuses on two phages and their interactions, which may not represent all possible phage-host dynamics.

Statistical Information

P-Value

p<0.0001

Statistical Significance

p<0.0001

Digital Object Identifier (DOI)

10.3389/fmicb.2024.1468686

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