Figure 1
Expression of Wnt3a by immunohistochemical staining in human colon cancer tissue samples. (A) Representative colon cancer samples with Wnt3a negative (left), weak (middle), and strong (right) expression, 400×. (B) Strong expression of Wnt3a was observed in invasive front, 200×. (C) Kaplan–Meier survival analysis showing that Wnt3a-negative patients had longer survival time than Wnt3a-weak expression or Wnt3a-strong expression patients.