Mutant p53 and genomic instability in a transgenic mouse model of breast cancer.
Murphy KL, Rosen JM
Oncogene 2000 Feb 21;19(8):1045-51
Conclusions
Cancer initiation and progression are complex processes involving many genetic and epigenetic factors.
One of the future goals of the National Cancer
Institute is the development of improved mouse
models to help elucidate the mechanisms underlying
these processes and for use in testing new diagnostic
and therapeutic regimens. In this regard, the WAP-p53
172 R-H transgenic model developed in our laboratory
is unique in that it consistently produces tumors
characteristic of high-grade breast adenocarcinomas.
This model should, therefore, serve as an excellent
system in which to study the mechanisms responsible
for genetic instability and may help identify those
factors that promote tumor progression and metastasis.
Finally, because mammary gland abnormalities are
rarely observed in this model in the absence of
carcinogen administration or oncogene co-expression,
this model should facilitate the identification of earlier
genetic lesions.