TP53 and breast cancer: The mammary tumors that arose with slow kinetics in the experimental Ctip/p53-mutant females (Ctipco/−, co/co/p53co/+,co/co/Wapcre/+) were invasive adenocarcinomas with a predominantly solid-glandular or solid-nodular pattern and a basal-like histopathology (Figure 5A–5F shows a representative Ctipco/−/p53co/+/Wapcre/+ tumor).