Expression of oval cell markers in DDB1 mutant mouse liver.

<p>(A) Co-IF staining for Cytokeratin-19 (CK19) and Albumin (Alb) (upper panels), E-cadherin and DDB1 (middle panels), α-fetoprotein (AFP) and CD133 (lower panels). (B–D) Co-IF staining for EpCAM and A6 on liver sections from 4-week old <i>DDB1^F/F;Alb-Cre^+/+</i> (B), 6-week old <i>DDB1^F/F;Alb-Cre^+/−</i> (C), and adult <i>DDB1^F/F;Mx1-Cre^+/−</i> mice at 6 weeks after receiving poly(I:C) injection (D).