Fig. 2
From: PTK7 is a novel oncogenic target for esophageal squamous cell carcinoma
PTK7 positively regulates cell proliferation in esophageal squamous tumor cells. PTK7 level was knocked down by siRNA in human esophageal squamous carcinoma cell lines, TE-5 (a) and TE-9 (b). PTK7 western blot (left panels) was performed to confirm the siRNA results. Proliferation of the knockdown (siPTK7) and the control cells (siControl) was measured by MTT assays in TE-5 and TE-9 ( PTK7 was overexpressed in both TE-5 (c) and TE-9 (d) cells, cell proliferation was measured by MTT assays. (*p < 0.05, **p < 0.01, Student’s t test)