CT26 tumour mice treated with pEEVGmCSF-b7.1 had a significantly greater percentage of splenic CD19+ (B cells), DX5+/CD3+ (natural killer T (NKT) cells), DX5+/CD3− (NK cells) and CD8+ (cytotoxic T cells) as shown in Table 1. Here, CD19 is linked to neoplasm.