Miguel et al. transplanted B16 mouse tumor cells to mice prior to treating them with irradiated GM-CSF (granulocyte and macrophage colony-stimulating factor) tumor-producing cells combined with anti-Foxp3 2’-O-methyl phosphorotioate-modified oligonucleotides (2’-OMe-PS-ASOs). The gene discussed is CSF2; the disease is neoplasm.