Calprotectin protects <i>Staphylococcus aureus</i> in coculture with <i>Pseudomonas aeruginosa</i> by attenuating quorum sensing and decreasing the production of pseudomonal antimicrobials.

ABSTRACT: Pseudomonas aeruginosa and Staphylococcus aureus cause debilitating polymicrobial infections in diverse patient populations. Studies of these bacterial pathogens in coculture have shown that environmental variables, including Fe availability and the host-defense protein calprotectin (CP), impact coculture dynamics. To decipher how CP modulates interactions between P. aeruginosa and S. aureus, we employed dual-species RNA-seq to examine the transcriptional responses of both pathogens in coculture to CP treatment and metal depletion. Analysis of these responses revealed that, for both P. aeruginosa and S. aureus, CP treatment not only induced gene expression changes consistent with single- and multi-metal starvation responses but also induced gene ex

SUBMITTER: Lee WH 

PROVIDER: S-EPMC12455946 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature