Abnormal hepatic differentiation in DKC1-mutant cultures. (A) qRT-PCR analysis of hepatic transcription factors, hepatic marker genes, MYC, and MYC target genes (n = 4). ∗P < .05, ∗∗P < .01. Error bars indicate means ± SD. (B) HNF4α and Ki67 staining of mutant HBs and corrected HBs. Scale bar: 100 μm. (C) HNF4α and Ki67 staining of mutant HEPs and corrected HEPs. Scale bar: 100 μm. (D) Immunostaining of HNF4α and FABP1 in mutant HEPs and corrected HEPs. Scale bar: 100 μm. (E) Expression of cytokines in HEPs analyzed by qRT-PCR and enzyme-linked immunosorbent assay (n = 4). ∗∗P < .01. Error bars indicate means ± SD. Cor, corrected; Mut, mutant.