TLR7/8 Agonist Treatment Induces an Increase in Bone Marrow Resident Dendritic Cells and Hematopoietic Progenitor Expansion and Mobilization

Treatment with the TLR7/8 agonist R848 results in a significant increase in classic dendritic cells (DCs) in the bone marrow, but a decrease in common dendritic cell progenitors and pre-DCs. Phenotypic analysis of DCs showed that R848 treatment is associated with altered expression of certain chemokines, activation markers, and migratory receptors. Overall design: Wildtype mice were treated with a single dose of the TLR7/8 agonist R848 and then dendritic cells were purified from the bone marrow for RNA sequencing