Figure 2

Immunohistostaining of phosphorylated Akt (p-Akt): correlation of PIK3CA copies with increased p-Akt level. (A) Representative samples of immunohistostaining on gastric cancer histologic slides using anti-p-Akt antibodies. Increasing extent of specific staining (brown color) in association with increasing PIK3CA copies (number inside brackets). (B) Association of immunohistostaining (IHS) score of p-Akt with PIK3CA copies on 13 randomly selected gastric cancer samples.