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Whole transcriptome analysis of iPSC derived hepatic organoids cultures

ABSTRACT: A heatmap, which focused upon 2458 genes that were involved in stem cell differentiation and liver development, was prepared to visualize the relative relationship between the transcriptomes of iPSCs, PHHs, human liver tissue and HO1. The dendrogram indicates that HO1 is more closely related to liver tissue than to PHHs; this is because cholangiocytes are present in HO1 and liver, but are absent (or rare) in PHHs. Examination of the genes within this heatmap indicated that there was a lack of expression of pluripotent genes in HO1; and that HO1 had an increased level of expression of cellular markers for liver lineages and liver development, which included mature hepatocytes, bile duct cells and NOTCH signaling components. A cluster analysis of 1510 genes indicates that there were major changes in the transcriptome after the cells that were dissociated from an HO1 were transferred from the growth medium into the differentiation medium. As with the HO1s, the gene expression profile of HO2s resembled that of PHHs and human liver. Of importance, the level of expression of mRNAs that are of importance for various human liver functions (ADH4, CYP3A4, TTR, GSRA1, TDO2, GSTA1 and FAH) were markedly increased in HO2s.

ORGANISM(S): Homo sapiens

PROVIDER: GSE138549 | GEO | 2019/10/09

REPOSITORIES: GEO

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Whole transcriptome analysis of iPSC-derived hepatic organoids cultures

Project description:A heatmap, which focused upon 2458 genes that were involved in stem cell differentiation and liver development, was prepared to visualize the relative relationship between the transcriptomes of iPSCs, PHHs, human liver tissue and HO1. The dendrogram indicates that HO1 is more closely related to liver tissue than to PHHs; this is because cholangiocytes are present in HO1 and liver, but are absent (or rare) in PHHs. Examination of the genes within this heatmap indicated that there was a lack of expression of pluripotent genes in HO1; and that HO1 had an increased level of expression of cellular markers for liver lineages and liver development, which included mature hepatocytes, bile duct cells and NOTCH signaling components. A cluster analysis of 1510 genes indicates that there were major changes in the transcriptome after the cells that were dissociated from an HO1 were transferred from the growth medium into the differentiation medium. As with the HO1s, the gene expression profile of HO2s resembled that of PHHs and human liver. Of importance, the level of expression of mRNAs that are of importance for various human liver functions (ADH4, CYP3A4, TTR, GSRA1, TDO2, GSTA1 and FAH) were markedly increased in HO2s.

2017-10-21 | GSE101770 | GEO

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Human induced pluripotent stem cell culture on a non-coated dish using medium supplemented with milk fat globule epidermal growth factor 8

Project description:201B7 cells were cultured on iMatrix-511 for 4 days after cell seeding in Stem Fit AK03 medium or CTS Essential 8 medium (2 samples each), and separately, different 201B7 cells (2 samples each) were cultured in Stem Fit AK03 medium or gelatin solution (10%) + MFGE 8 (2 µg/mL) in CTS Essential 8 medium for 4 days from cell seeding. A hierarchical cluster analysis of the 10 cell types is shown (Figure 2A). The 5,919 probes with variable expression are shown in a heatmap. Comparisons between samples based on 'human ES cell' were made using a hierarchical cluster analysis, and 4,825 probes with variable expression in each of the four comparisons are shown in the heatmap (Figure 2B). Comparisons between samples based on 'human iPSC N116213' were performed using a hierarchical cluster analysis, and 4,886 probes with variable expression in each of the four comparisons are also shown in a heatmap (Figure 2C).

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