IL-1β alters the virulence of uropathogenic Escherichia coli.

ABSTRACT: Uropathogenic Escherichia coli (UPEC) is the leading cause of urinary tract infection (UTI). While the role of UPEC in triggering host immune responses is well studied, less is known about how host-derived cytokines influence UPEC virulence. The aim of this study was to investigate how the pro-inflammatory cytokine IL-1β affects UPEC virulence, metabolism, and host-pathogen interactions. Using the CFT073 strain, we found that IL-1β exposure induced a rapid metabolic shift characterized by decreased oxygen consumption rate (OCR) and increased extracellular acidification rate (ECAR), indicating a transition from respiration to fermentative metabolism. Microarray analysis confirmed the upregulation of fermentative (hyc) and antioxidant (katG, ahpF, grxA) genes, along with increased purine bio

SUBMITTER: Kalaycı-Yuksek F 

PROVIDER: S-EPMC12572196 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature