USE OF PROBIOTIC BACTERIUM-DERIVED EXTRACELLULAR MICRO- AND/OR NANOPARTICLES FOR THE TREATMENT OF DISEASE

    公开(公告)号:US20240009256A1

    公开(公告)日:2024-01-11

    申请号:US17797219

    申请日:2021-02-04

    摘要: Provided are probiotic bacterium-derived extracellular micro- and/or nanoparticles. Also provided are methods for purifying the probiotic bacterium-derived extracellular micro- and/or nanoparticles and methods for using the disclosed probiotic bacterium-derived extracellular micro- and/or nanoparticles to treat liver diseases and/or disorders including but not limited to acute liver failure (ALT), alcoholic liver disease (ALD), non-alcoholic liver disease, alcoholic hepatitis (AH), liver steatosis, liver fibrosis and/or cholestatic liver disease; increasing intestinal aryl hydrocarbon receptor (AhR) activity, Nrf2 signaling, IL-22 expression, regenerating islet-derived 3β (Reg3P) expression, and/or regenerating islet-derived 3γ (Reg3y) expression; maintaining gut microbiota homeostasis; preventing or reducing bacterial intestinal transcytosis; increasing intestinal tight junctions; decreasing circulating LPS concentration; protecting intestinal barrier integrity against oxidative stress; regulating intestinal Nrf2 signaling; increasing intestinal EGF secretion, hepatic macrophage HB-EGF cleavage and activation; and hepatic EGER activation.