Figure 1. A mouse model of gastric carcinoma was successfully established. (A) A nude mouse model of human gastric carcinoma was constructed through orthotopic transplantation. The gastric orthotopic model was observed with an In Vivo Image System. (B, C) The gastric orthotopically transplanted mice were sacrificed at the end of study, and their gastric tissues are pictured. (D) Tumor metastasis in the mice was detected with an In Vivo Image System eight weeks after gastric orthotopic transplantation. (E) The heart, liver, spleen, lung, kidney, small intestine, peritoneum, lymph and brain tissues of the mice were isolated and photographed eight weeks after gastric orthotopic transplantation.