Nanoparticle (NP) carriers can target lymphoid organs systemically, including lymph nodes, spleen, bone marrow and tolerogenic antigen presenting cells in the liver. For example, Apolipoprotein-based lipid nanodiscs a preferentially taken up by myeloid cells in the liver, spleen, and bone marrow. Stabilin-funcitonalized nanoparticles are efficiently scavenged by endothelial cells in the liver. Anionic LNPs target antigen presenting cells in the liver, spleen, lymph nodes, and bone marrow.