Immunomodulatory Nanozymes Eradicate Intracellular Infections and Rescue Immunoparalysis for Treating Multidrug-Resistant Bacterial Sepsis.

ABSTRACT: Sepsis and their sequelae are the leading causes of death in intensive care units, with limited therapeutic options. Immunoparalysis plays a vital role in the pathophysiological progression of sepsis, leading to intracellular persistent infections and high mortality of septic patients. Eradicating intracellular infections and rescuing immunoparalysis are critical for sepsis management, yet effective tactics remain elusive. Here, we report immunomodulatory nanozymes (named PdIr@OMVs) that enable intracellular bacteria elimination and reinvigorate systemic innate-adaptive immune response during immunoparalysis to tackle multidrug-resistant (MDR) bacterial sepsis. The PdIr@OMVs are designed by encapsulating plasmonic PdIr nanocatalysts with immunostimulants of biocompatible bacterial outer me

SUBMITTER: Du X 

PROVIDER: S-EPMC12561197 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature