Correction: Enhanced Hepatogenic Transdifferentiation of Human Adipose Tissue Mesenchymal Stem Cells by Gene Engineering with Oct4 and Sox2.

[This corrects the article DOI: 10.1371/journal.pone.0108874.].

In the graph legend in Panel A of Fig 4, the color for RFP-ATMSCs is incorrect. Please see the corrected Fig 4 here.

Fig 4

PCR analysis and immunofluorescence of liver markers after 28 days hepatogenic differentiation.

(A) The mRNA expression level of albumin (ALB) was strongly expressed in hepatogenically differentiated Oct4/Sox2-ATMSCs, whereas the expression level of α-fetoprotein (AFP) was lower than that of RFP-ATMSCs. The expression levels of transferrin were not significantly different in both cells. Undifferentiated ATMSCs and HepG2 were used as negative and positive controls, respectively. (B) Hepatocyte-like cells from RFP- and Oct4/Sox2-ATMSCs are confirmed by immunofluorescence staining for AFP and ALB. Nuclei were counterstained with Hoecst33342.