Runx2 expression is developmentally regulated in the mammary gland.
A) Quantitative PCR of Runx2 expression across a developmental time course (n=3 mice at each time point) P-pregnancy; L-lacation; I-involution (*** p<0.01).
B) Representative western blot of Runx2 expression of protein extracted from same tissue as mRNA used in (A).
C) Runx2 immunohistochemistry of Runx2+/+ and Runx2−/− mammary glands generated by transplantation of Runx2+/+ and Runx2−/− embryonic mammary tissue to Rag1−/− hosts. Glands collected 16 weeks post-transplantation, from virgin Rag1−/− recipient mice with cross-section of duct shown (Scale bar 50 μm).