The percentages of CK5/6‐positive areas within the cancer cell areas in tumor sections were 38.0%, 27.2%, 27.3%, and 20.7% for 544‐shCtrl, 544‐shLEF1‐1, 544‐shLEF1‐3, and 544‐shLEF1‐9, respectively (Figure 5C,D). Here, KRT5 is linked to neoplasm.