POLYMERIC NANOPARTICLES THAT TARGET LIVER SINUSOIDAL ENDOTHELIAL CELLS TO INDUCE ANTIGEN-SPECIFIC IMMUNE TOLERANCE

    公开(公告)号:US20220395563A1

    公开(公告)日:2022-12-15

    申请号:US17775245

    申请日:2020-11-11

    摘要: In various embodiments tolerogenic nanoparticles are provided that induce immune tolerance to one or more desired antigen(s) and/or that reduce an immune response to those antigen(s). In certain embodiments the tolerogenic nanoparticle comprises a nanoparticle comprising a biocompatible polymer; an antigen disposed within or attached to said biocompatible polymer where said antigen comprises an antigen to which immune tolerance is to be induced by administration of said tolerogenic nanoparticle to a mammal; and a first targeting moiety that binds to a scavenger receptor in the liver, and/or a second targeting moiety that binds to a mannose receptor in the liver, and/or a third targeting moiety that binds to hepatocytes, wherein said first and/or second and/or third targeting moiety are attached to the surface of said nanoparticle.