Control of Overly Secreted Tryptophanyl tRNA Synthetase Attenuates Sepsis Severity in a Porcine Model.

Sepsis is a leading cause of mortality in hospitals with a lack of reliable biomarkers and specialized therapeutics. Recently, highly secreted tryptophanyl-tRNA synthetase 1 (WARS1), an endogenous ligand for Toll-like receptor (TLR) 2 and TLR4, was found to be a potential theranostic target for hypercytokinemic severe sepsis. In this study, using the minipig sepsis model inoculated with cecum slurry, we demonstrated that increases in WARS1 levels were associated with severity of sepsis and showed strong correlations with RBC count and the levels of HGB, HCT, EPO, lactate, and PLT count in the acute phase of sepsis.