Engineered Pseudomonas aeruginosa phages with quorum-quenching enzyme or depolymerase for inhibition of biofilm formation.

ABSTRACT: Pseudomonas aeruginosa is a major cause of healthcare-associated infections and a significant threat to global health, primarily due to its ability to form biofilms that protect it from host immune responses and block antibiotic efficacy. While bacteriophages (phages) are emerging as potential antimicrobial agents, their effectiveness is often limited by these bacterial biofilms. This study aimed to enhance the biofilm-disrupting capabilities of phages through genetic engineering. First, we validated the in vitro biofilm-inhibitory effects of two enzymes: the quorum-quenching lactonase (Aiia) and a phage-derived depolymerase (DP). To demonstrate their potential, we then used CRISPR-Cas9 to engineer the P. aeruginosa phage PaGZ-1 to express these biofilm-d

SUBMITTER: Luo X 

PROVIDER: S-EPMC12845329 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature