CD40LG and neoplasm: Analysis of tumor-specific antibodies in vaccinated p19Arf−/− animals at sampling revealed a marked significant decrease in quantity of Ova-specific IgG in LmAIO group (Fig. 2G), while Listeria-specific IgM and IgG antibody responses (α-LmAI and α-LmAIO) were not decreased in LmAIO-vaccinated p19Arf−/− and WT groups (Supplementary Fig. S2G-J).