NFYA and neoplasm: To determine whether the NF‐YA‐positive cells had a greater capacity to form tumours, a xenotransplantation experiment was performed with 104 NF‐YA‐modified cells (left side) and control cells (right side) subcutaneously inoculated into 4‐ to 6‐week‐old female nude mice (N = 3) for three repeats.