Figure 2. Conjugation of the TLR7 agonist to antigen does not increase antigen persistence in vivo.
Mice were injected subcuntaneously with 10 μg OVA alone, OVA mixed with the unconjugated TLR7 agonist or the OVA-TLR7a conjugate at 0, 1, 3, or 7 days prior to the intravenous transfer of CFSE-labeled TCR transgenic OTI T cells. Locally draining LNs were harvested 3 days following OTI T cell transfer, and the dilution of CFSE was assessed by gating on OTI T cells using SIINFEKL-H-2Kb Tetramer+ events. The data shown are representative of two independent experiments.