Extracellular vesicles from Li-Qi-Yang-Yin formula attenuate LPS-stimulated inflammatory injury in human colonic epithelial cells in vitro by delivering bioactive metabolites and suppressing the oxidative stress–inflammation axis

Our findings demonstrate that LEVs from the LQYY formula are natural nanoparticles enriched with anti-inflammatory and antioxidant metabolites and can alleviate LPS-stimulated inflammatory injury in human colonic epithelial cells <i>in vitro</i>. These results provide proof-of-concept evidence and warrant further validation in animal models to determine disease relevance.