SNAI1 levels measured in patients PBMCs indicated that this transcription factor is significantly increased in patients who had no residual tumor (n = 11, ypT0) (p = 0.025) or diseased lymph nodes (n = 13, ypN0) after NAC and in pathological complete responders (n = 8, pCR) (p = 0.018) (Figures 4A–C). The gene discussed is SNAI1; the disease is neoplasm.