An intrasplenic injection model of pancreatic cancer metastasis to the liver in mice

Here, we provide a protocol for an intrasplenic injection model to establish pancreatic tumors in the mouse liver. We describe the steps to inject tumor cells into mouse spleen and to perform a splenectomy, followed by animal recovery and end point analysis of tumors in the liver. This model allows rapid and reproducible tumor growth in a clinically relevant metastatic site, providing a platform to evaluate the efficacy of anti-cancer drugs. This technique can be expanded to other cancer cell lines.