Expression of periostin and its clinicopathological relevance in gastric cancer

Figure 2 Periostin protein expression in normal and cancer tissue samples. Tissue extracts from normal or gastric cancer tissue samples were subjected to immunoblot analysis with a polyclonal antiperiostin antibody. The results shown in the T and N lanes are for cancer and normal tissues, respectively, from which RT-PCR was performed (A). Over fivefold more periostin was detected in gastric cancer tissues than in normal tissues from the same patient (B).