Fig. 1
From: PTK7 is a novel oncogenic target for esophageal squamous cell carcinoma
PTK7 is upregulated in esophageal squamous cell carcinoma tumors. a Oncomine expression analysis of PTK7 in human esophageal squamous cell carcinoma tumors vs. normal esophageal tissues. b IHC staining for PTK7 in clinical esophageal squamous cell carcinoma tumors and adjacent normal tissues. The table tabulates the statistics of the negative (−), positive (+), and strong staining (++) of PTK7 in the tumors and the normal tissues. A χ2test was performed to confirm the correlation of positive PTK7 staining with the tumor samples (χ2 = 166.318, df = 2, p < 0.001)