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Comparative analysis of hESCs and iPSCs-derived hepatocyte-like cells reveals current drawbacks and possible strategies for improved differentiation

ABSTRACT: Two independent protocols for deriving HLCs from hESCs and iPSCs were adopted and further characterization included immunocytochemistry, real-time RT-PCR, and in vitro functional assays. Comparative microarray-based gene expression profiling was conducted on these cells and compared to the transcriptomes of human fetal liver and adult liver progenitors. HLCs derived from hESCs and hiPSCs showed significant functional similarities, similar expression of genes important for liver physiology and common pathways. However, specific differences between the two cell types could be observed.

ORGANISM(S): Homo sapiens

PROVIDER: GSE25744 | GEO | 2011/01/20

SECONDARY ACCESSION(S): PRJNA134097

REPOSITORIES: GEO

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Project description:Purpose: We previously reported the generation of corneal endothelial cells (CECs) using the human peripheral blood mononuclear cells (PBMC)-originated induced pluripotent stem cells (iPSCs). Herein, we extend our analysis through RNA-Seq based transcriptome profiling of H9 human embryonic stem cells (hESCs)- and iPSCs-derived CECs. Methods: The PBMC obtained from a healthy donor were subjected to generate iPSCs using Sendai-virus delivery system Cytotune 2.0 whereas the H9 hESCs were obtained commercially. Both hESCs and iPSCs were subjected to the 20-day procedure according to our previously published CECs generation method. The differentiated CECs were characterized by immunocytochemistry. Total RNA from hESCs- and iPSCs-derived CECs was used for the preparation of RNA-Seq libraries, which were sequenced on HiSeq 2500 system. The raw RNA-Seq reads were processed and analyzed using Lasergene Genomics Suite and the expression profiles were examined for differential expression using Spotfire DecisionSite with Functional Genomics. Results: The hESCs and iPSCs were differentiated into CECs through multipotent neural crest cells (NCCs) using a 20-day procedure. The differentiating CECs on day 20 (D20) exhibited a tightly packed hexagonal/polygonal shape, which expressed CECs-associated markers, zona occludens-1 and N-cadherin at the cell boundaries. A total of 180.18, and 179.01 million reads were obtained for hESCs- and iPSCs-derived CECs, respectively. Of these, >97% reads aligned to the human reference genome resulting in >250x sequence coverage for both hESCs- and iPSCs-derived CECs. Additional analysis identified expression (≥ 0.659 RPKM) of 13,561 and 13,551 genes in hESCs- and iPSCs-derived CECs, respectively, representing ~68% of the total human protein-coding transcriptome expressed in these CECs. Finally, a comparative analysis of both hESCs- and iPSCs-derived CECs transcriptomes identified >95% similarity at the gene level. Conclusion: These analyses reveal an overall similar transcriptional profile in both hESCs- and iPSCs-derived CECs.

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Comparative analysis of hESCs and iPSCs-derived hepatocyte-like cells reveals current drawbacks and possible strategies for improved differentiation

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