| 摘要 |
Expression of MYC alone, in a conditional transgenic mouse model of Twist1- and MYC-induced hepatocellular carcinoma (HCC), resulted in tumors that failed to metastasize, whereas Twist1 co-expression with MYC resulted in tumors associated with extra-hepatic metastases to the lymph nodes, spleen, peritoneum, and lungs. Twist1 also caused a marked increase in circulating tumor cells. Combined inactivation of Twist1 and MYC resulted in sustained regression of both primary and metastatic tumors as shown by gross and microscopic pathology, X-ray computed tomography and bioluminescence imaging, as well as the suppression of circulating tumor cells. Through genomic analysis a 20-gene signature comprising 17 up-regulated genes and 3 down-regulated genes has been identified that is highly predictive of metastasis and overall survival in human patients with HCC. Another aspect of the disclosure methods of determining the metastatic status of an hepatocellular carcinoma of a patient, comprising obtaining a first differential gene expression profile from a carcinoma sample from a subject having an hepatocellular carcinoma and creating a report summarizing the normalized data obtained by the first gene expression analysis and including a determination of the metastatic status of the hepatic carcinoma. |
