Abstract
Objective To establish a method for preparing orthotropic transplantable hepatocellular carcinoma in mice. Methods According to the liver detailed anatomical structure of the mouse, 50 μl mouse ascites containing 1×106 and 5×105 mouse hematoma H22 cells was input to liver in 12 Kunming mice through percutaneous intraperitoneal injection by syringe, respectively, to establish orthotopic transplantable hepatocellular carcinoma model. The growth status of mice was observed, and the pathological changes of liver and tumor metastasis tissues were detected. The tumor formation and metastasis were analyzed. Results The tumor formation rate was 100% (12/12) by direct injection of mouse hematoma H22 cells in 2 groups. The inoculated mice started to appear ascites at the 6th day, and all mice produced ascites at the 10th day. The survival time was (16.17±3.07) d and (18.08±3.34) d in 1×106 group and 5×105 group, respectively. Some mice emerged tumor metastasis in kidney, intestine, spleen and mesenteric lymph nodes. Conclusion The method of direct injection could establish orthotropic transplantable hepatocellular carcinoma model in mice, which can be used for antitumor drug research. Key words: Liver neoplasms; Orthotopic transplantion tumor; Models, animal
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