Figure 3. HOXC4 knockdown inhibits the proliferation of PANC-1 cells in vivo. (A) Growth curve of the tumors in the HOXC4 knockdown and control groups. (B) Images of the tumors. (C) Expression of Ki67 and proliferating cell nuclear antigen in HOXC4 knockdown and normal control tissues. **P < 0.01.