IFN-γ increases EGFr expression in HT29/cl.19A cells. a, representative Western blot of whole cell lysates of HT29/cl.19A cells, sequentially probed for total EGFr or lamin A/C as loading control. b, densitometric analysis shows significantly increased EGFr levels in IFN-γ-treated compared with control cells. Data are expressed in arbitrary units. Asterisks denote a significant difference between groups (*, p ≤ 0.05, two-way analysis of variance). Error bars, S.E.