Comparison of SOCS2 and IGF-I expression. (A) Box blots with data from a set of seven tumors comparing the relative mRNA expression levels in tumor (CA) and normal adjacent tissue (TA). (B) SOCS2 protein and corresponding SOCS2 mRNA expression in normal and cancerous tissue of two tumor specimens. SOCS2 protein expression was assessed by immuno-blot with an antibody directed against SOCS2. Actin was used as a loading control.