| First Author | Takai A | Year | 2009 |
| Journal | Oncogene | Volume | 28 |
| Issue | 4 | Pages | 469-78 |
| PubMed ID | 18997814 | Mgi Jnum | J:145898 |
| Mgi Id | MGI:3836246 | Doi | 10.1038/onc.2008.415 |
| Citation | Takai A, et al. (2009) A novel mouse model of hepatocarcinogenesis triggered by AID causing deleterious p53 mutations. Oncogene 28(4):469-78 |
| abstractText | Activation-induced cytidine deaminase (AID), the only enzyme that is known to be able to induce mutations in the human genome, is required for somatic hypermutation and class-switch recombination in B lymphocytes. Recently, we showed that AID is implicated in the pathogenesis of human cancers including hepatitis C virus (HCV)-induced human hepatocellular carcinoma (HCC). In this study, we established a new AID transgenic mouse model (TNAP-AID) in which AID is expressed in cells producing tissue-nonspecific alkaline phosphatase (TNAP), which is a marker of primordial germ cells and immature stem cells, including ES cells. High expression of TNAP was found in the liver of the embryos and adults of TNAP-AID mice. HCC developed in 27% of these mice at the age of approximately 90 weeks. The HCC that developed in TNAP-AID mice expressed alpha-fetoprotein and had deleterious mutations in the tumour suppressor gene Trp53, some of which corresponded to those found in human cancer. In conclusion, TNAP-AID is a mouse model that spontaneously develops HCC, sharing genetic and phenotypic features with human HCC, which develops in the inflamed liver as a result of the accumulation of genetic changes. |
