Fig. 4. Abnormalities in the hair growth and cycling in Cre-mediated conditional Dlx3 knockout mice at late stages of postnatal hf morphogenesis. (A,B) Skin samples were obtained from both wild-type (WT) and mutant (K14Cre;Dlx3^Kin/f or K14Cre;Dlx3^f/f) littermates at P1, P9, P12, P15, P20 and P26; the deparaffinized sections were stained with Hematoxylin/Eosin (A) and anti-PCNA antibody (B, green). (C) Skin sections of wild-type (WT) and mutant K14Cre;Dlx3^f/f at P15 were stained with Hematoxylin/Eosin and antibodies against PCNA, K14 and K1. Scale bars: 50 µm.