Figure 1From: Clinical significance of the uPA system in gastric cancer with peritoneal metastasisCEA mRNA expression in seven cases of gastric cancer with peritoneal metastasis. M: 1000 bp marker; Lanes 1, 2, 3, 4, 5, 6, and 7 indicated the seven peritoneal metastatic cases. β-actin was used for internal reference to normalize the expression of CEA. The amplification products were 131 bp of CEA and 591 bp of β-actin, respectively. CEA, carcinoembryonic antigen.Back to article page