Fig. 4. p53 family members do not contribute to the Notch1-deficient follicular
phenotype. (A) Quantitative reverse transcriptase (qRT)-PCR of p63
and p73. (B) Immunohistochemistry of p73 in hair follicles of
anagen-deleted Notch1 (anN1), embryo-deleted Notch1 (em-N1) and wild-type (WT)
littermates. (C) qRT-PCR with Notch1, Trp53 (p53) and
p53 target genes [Cdkn1a (p21), Igfbp3 and Scotin]
using total RNA from the hair bulbs of the genotypes specified
(emN1;p53-/-indicates
Msx2Cre;Notch1flox/flox;Trp53-/-). Note the
sustained increase in Scotin and Igfbp3 expression in the
absence of p53. Error bars represent s.e.m. Scale bar: 50 µm.