EPCAM and cancer: The clinicopathological characteristics of patients are described in Figure S2B. As a result, the mean ratio of the colocalized area (EpCAM+CD45+) within (EpCAM+) epithelial cells was determined to be 0.16096±0.24376, and more importantly, the CD45 staining intensity among cancer epithelial cells was higher in poor responders (TRG 2-3, 20.69%) than in good (complete or near complete) responders (TRG 0-1, 6.26%, Figure 2A).