Immunohistochemical analysis of mesenchymal markers in E14.5 β-CateninDermo1 embryo livers. Increased staining for DESMIN (A, B and insets A', B') αSMA (C, D arrow) along dilated sinusoids in β-CateninDermo1 livers compared to control littermates. Increased deposition of COLLAGEN Type I in β-CateninDermo1 livers compared to control littermate (E, F arrow). Increased LacZ expression in E14.5 β-CateninDermo1;Flk1LacZ livers outlining the dilated blood vessels in β-CateninDermo1 livers compared to control livers (G, H). Bars denote 50μm.