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Host–pathogen

Can blocking host protein on catheters prevent CAUTI?

Andersen MJ, Fong C, La Bella AA, et al. · eLife · 2022

Open access · cc by · source: Europe PMC

Liquid-infused silicone catheters reduced host-protein deposition (~6.5-fold for secreted proteins) and lowered microbial colonization and dissemination in a mouse CAUTI model.

Key findings

Fg benefits E. faecalis, E. coli, P. aeruginosa, K. pneumoniae, A. baumannii, and C. albicans. LIS catheters reduced protein deposition and decreased colonization on catheters, in bladders, and dissemination; other host-secreted proteins were ~6.5-fold lower than unmodified catheters.

Methodology

Showed fibrinogen deposition aids multiple uropathogens, then tested liquid-infused silicone catheters in mouse CAUTI to cut host-protein scaffolds and measured colonization plus surface proteomics.

Limitations

Mouse CAUTI efficacy is not yet a human clinical trial; durability, biocompatibility, and real-world infection rates remain to be proven.

How this study connects

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