XCL1 and neoplasm: A significant tumor growth delay was obtained in cohorts vaccinated with Xcl1-(OVA SLP)-Fc and OVA SLP + Xcl1-Fc fusion proteins, as compared to mice not receiving Xcl1 (OVA SLP and CpG only), while only a tendency to a higher delay was observed against the OVA SLP + free Xcl1 cohort (Figure 3B).