Tumor-bearing mice were divided into seven groups of five mice each, and received either no treatment, unpulsed SFM-DCs, SFM-DCs pulsed with either p9, p17, p35 or p48, or finally SFM-DCs pulsed with the rErbB2/HER2 class I-restricted CTL epitope p66 (TYVPANASL). This evidence concerns the gene ERBB2 and neoplasm.