Rapamycin alleviates hepatocellular carcinoma progressing in transgenic mice

Objective Exploring the influence of rapamycin on the progressing of hepatocellular carcinoma(HCC) in H-ras 12V transgenic mice. Methods The expression level of miRNA in liver tissue and peritumor tissue of transgenic mice was detected by high-throughput sequencing of miRNAs. Treatment of transgenic mice with rapamycin and the changes of tumor morphology were detected. The miR-183 expression levels were detected by RT-qPCR. The protein expression levels of mTOR, ERK and PDCD4, the downstream target gene of miR-183, were detected by Western blot. Results Compared with the peritumor tissue, the miR-183 expression in hepatocellular carcinoma tissue was increased significantly (P＜0.01). The protein expression levels of PDCD4 were decreased significantly(P＜0.05). Compared with the control group, after intervention with rapamycin, the counting of liver tumors decreased significantly(P＜0.05). The liver co-efficient decreased significantly(P＜0.05). The ERK phosphorylation increased significantly (P＜0.05). The miR-183