TY - JOUR TI - Inhibiting host-protein deposition on urinary catheters reduces associated urinary tract infections AU - Andersen, Marissa Jeme AU - Fong, ChunKi AU - La Bella, Alyssa Ann AU - Molina, Jonathan Jesus AU - Molesan, Alex AU - Champion, Matthew M AU - Howell, Caitlin AU - Flores-Mireles, Ana L A2 - Bonten, Marc J A2 - Garrett, Wendy S A2 - Bonten, Marc J VL - 11 PY - 2022 DA - 2022/03/29 SP - e75798 C1 - eLife 2022;11:e75798 DO - 10.7554/eLife.75798 UR - https://doi.org/10.7554/eLife.75798 AB - Microbial adhesion to medical devices is common for hospital-acquired infections, particularly for urinary catheters. If not properly treated these infections cause complications and exacerbate antimicrobial resistance. Catheter use elicits bladder inflammation, releasing host serum proteins, including fibrinogen (Fg), into the bladder, which deposit on the urinary catheter. Enterococcus faecalis uses Fg as a scaffold to bind and persist in the bladder despite antibiotic treatments. Inhibition of Fg–pathogen interaction significantly reduces infection. Here, we show deposited Fg is advantageous for uropathogens E. faecalis, Escherichia coli, Pseudomonas aeruginosa, K. pneumoniae, A. baumannii, and C. albicans, suggesting that targeting catheter protein deposition may reduce colonization creating an effective intervention for catheter-associated urinary tract infections (CAUTIs). In a mouse model of CAUTI, host-protein deposition was reduced, using liquid-infused silicone catheters, resulting in decreased colonization on catheters, in bladders, and dissemination in vivo. Furthermore, proteomics revealed a significant decrease in deposition of host-secreted proteins on liquid-infused catheter surfaces. Our findings suggest targeting microbial-binding scaffolds may be an effective antibiotic-sparing intervention for use against CAUTIs and other medical device infections. KW - fibrinogen KW - CAUTI KW - slippery liquid-infused porous surface KW - urinary catheter KW - inflammation KW - uropathogen KW - liquid-infused polymer JF - eLife SN - 2050-084X PB - eLife Sciences Publications, Ltd ER -