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Antigen-specific liposome formulations with CD22 ligand and rapamycin. (A) Chemical structures of the murine CD22 ligand linked to PEGylated lipid (1) and rapamycin (2). (B) Schematic illustration of antigen-specific liposome formulations equipped with CD22 ligand (STALs) and the new platform (STALs+RAPA).
