Mucosal-adapted bacteriophages as a preventive strategy for a lethal Pseudomonas aeruginosa challenge in mice
2025

Using Bacteriophages to Prevent Infections from Pseudomonas aeruginosa in Mice

Sample size: 8 publication 10 minutes Evidence: high

Author Information

Author(s): Coelho Luiz Felipe Leomil, de Souza Terceti Mateus, Neto Sergio Pereira Lima, Amaral Raíne Piva, dos Santos Ana Luisa Cauvila, Gozzi William Permagnani, de Carvalho Bianca Andrade, da Cunha Gustavo Aparecido, Durante Maria Fernanda Romboli, Sanchietta Lais, Marangoni Giovana Soares, Gabriel Matheus Luca Carotta, Malaquias Luiz Cosme Cotta, Celis Eliana Leonor Hurtado, de Souza Apolinário Giovanna, Araujo Junior João Pessoa, de Oliveira Carine Ervolino, Queiroz Victoria Fulgencio, Magno de Freitas Almeida Gabriel

Primary Institution: Federal University of Alfenas, Brazil

Hypothesis

Can mucosal-adapted bacteriophages prevent infections caused by Pseudomonas aeruginosa?

Conclusion

Mucosal-adapted phage VAC3 effectively protects mice from lethal doses of Pseudomonas aeruginosa.

Supporting Evidence

  • Phage VAC3 was more effective in replicating in mucin-exposed Pseudomonas aeruginosa.
  • Pre-treatment with VAC3 phage improved survival rates in mice infected with Pseudomonas aeruginosa.
  • Histopathological analysis showed less lung damage in VAC3 pre-treated mice compared to controls.

Takeaway

Scientists found that a special virus called phage VAC3 can help protect mice from a harmful germ called Pseudomonas aeruginosa.

Methodology

The study involved isolating two phages from environmental samples and testing their ability to prevent infections in mice.

Limitations

The study was conducted in mice, and results may not directly translate to humans.

Participant Demographics

C57BL/6 mice were used in the study.

Statistical Information

P-Value

p=0.0002

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1038/s42003-024-07269-0

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