FOXP3 and neoplasm: However, no significant difference was seen in the number of tumor-infiltrating CD8+ T cells and no tumor-infiltrating Foxp3+ T cells were seen in tumors from mice in different treatment groups, indicating that scFvMTBHsp70 may improve effector cell function rather than the number of intratumoral CD8+ T cells (Additional file3: Figure S3A and B).