Figure 8.
Wnt/β−catenin pathway analysis in Armc5+/− adrenals. (A) Immunohistochemical analysis of β-catenin shows a normal expression in the zona glomerulosa (ZG) of Armc5+/− adrenals. However, the ZG is invaded by the fibroblastic like cells (arrows) that did not express β-catenin. (B) The β-catenin target genes Axin2, Lef1 and CyclinD1 are significantly increased in Armc5+/− adrenals at 18 months old. Their expression was analyzed by RTqPCR on mRNA from 12 and 18-month-old Armc5+/+ and Armc5+/− adrenals. Bars represent the induction fold of at least six individual adrenals ± standard deviation. P-value was calculated using Student’s t-test.