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. 2024:2734:151-169.
doi: 10.1007/978-1-0716-3523-0_10.

Studying Bacteriophage Efficacy Using a Zebrafish Model

Marco Cafora  1 , Alessia Brix  1 , Francesca Forti  2 , Federica Briani  2 , Anna Pistocchi  3
Affiliations

Studying Bacteriophage Efficacy Using a Zebrafish Model

Marco Cafora et al. Methods Mol Biol. 2024.

Abstract

The rise of bacteria resistant to the antibiotics currently in use (multiple drug-resistant, MDR) is a serious problem for patients affected by infections. This situation is even more worrying in the case of chronic bacterial infections, such as those caused by Pseudomonas aeruginosa (Pa), in patients with cystic fibrosis (CF). As an alternative to antibiotic treatments, the use of bacteriophages (phages) to fight bacterial infections has gained increasing interest in the last few years. Phages are viruses that specifically infect and multiply within the bacteria without infecting eukaryotic cells. It is well assumed that phage therapy has a high bacterial specificity, which, unlike antibiotics, should limit the damage to the endogenous microbiome. In addition, phages can kill antibiotic-resistant bacteria and perform self-amplification at the site of the infection.The protocol detailed in this chapter describes how the antimicrobial effect of phages can be studied in vivo in the zebrafish (Danio rerio) model infected with Pa. The same procedure can be applied to test the effectiveness of several different phages killing other bacterial species and for the rapid preclinical testing of phages to be used as personalized medicine.

Keywords: Bacterial burden; Fluorescence imaging; Infection model; Phages; Pseudomonas aeruginosa; Zebrafish.

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