Stimulator of interferon genes (STING) inhibits coronavirus infection by disrupting viral replication organelles.

ABSTRACT: Stimulator of interferon genes (STING) is an endoplasmic reticulum (ER) protein that plays a crucial role in cytosolic DNA-mediated innate immunity. Both STING agonists and antagonists have demonstrated their ability to enhance mouse survival against coronavirus, however, the physiological role of endogenous STING in coronavirus infection remains unclear. Our research unveils that STING inhibits coronavirus replication by impeding the formation of the ER-derived double-membrane vesicles (DMVs), the organelles in which coronavirus replicates. We found that STING was still capable of inhibiting coronavirus OC43 infection in cells, regardless of the knockout of cGAS or MAVS, or blocking type I interferon receptor. Moreover, STING disrupted the interaction between two crucial proteins, NSP4 an

SUBMITTER: Song K 

PROVIDER: S-EPMC11534302 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature