Fig. 2From: PENK inhibits osteosarcoma cell migration by activating the PI3K/Akt signaling pathwaya Relative expression of PENK in tumors and normal tissues. b Relative expression of PENK in hFOB1.19 cells and human OS cell lines (MG63, U2OS, 143B, and SAOS2). c Overall survival analysis of OS patients with high and low expression levels of PENK. *P < 0.05Back to article page