Godoy, Patricio and Schmidt-Heck, Wolfgang and Natarajan, Karthick and Lucendo-Villarin, Baltasar and Szkolnicka, Dagmara and Asplund, Annika and Bjorquist, Petter and Widera, Agata and Stober, Regina and Campos, Gisela and Hammad, Seddik and Sachinidis, Agapios and Chaudhari, Umesh and Damm, Georg and Weiss, Thomas S. and Nuessler, Andreas and Synnergren, Jane and Edlund, Karolina and Kueppers-Munther, Barbara and Hay, David C. and Hengstler, Jan G. (2015) Gene networks and transcription factor motifs defining the differentiation of stem cells into hepatocyte-like cells. JOURNAL OF HEPATOLOGY, 63 (4). pp. 934-942. ISSN 0168-8278, 1600-0641
Full text not available from this repository. (Request a copy)Abstract
Background & Aims: The differentiation of stem cells to hepatocyte-like cells (HLC) offers the perspective of unlimited supply of human hepatocytes. However, the degree of differentiation of HLC remains controversial. To obtain an unbiased characterization, we performed a transcriptomic study with HLC derived from human embryonic and induced stem cells (ESC, hiPSC) from three different laboratories. Methods: Genome-wide gene expression profiles of ESC and HLC were compared to freshly isolated and up to 14 days cultivated primary human hepatocytes. Gene networks representing successful and failed hepatocyte differentiation, and the transcription factors involved in their regulation were identified. Results: Gene regulatory network analysis demonstrated that HLC represent a mixed cell type with features of liver, intestine, fibroblast and stem cells. The "unwanted" intestinal features were associated with KLF5 and CDX2 transcriptional networks. Cluster analysis identified highly correlated groups of genes associated with mature liver functions (n = 1057) and downregulated proliferation associated genes (n = 1562) that approach levels of primary hepatocytes. However, three further clusters containing 447, 101, and 505 genes failed to reach levels of hepatocytes. Key TF of two of these clusters include SOX11, FOXQ1, and YBX3. The third unsuccessful cluster, controlled by HNF1, CAR, FXR, and PXR, strongly overlaps with genes repressed in cultivated hepatocytes compared to freshly isolated hepatocytes, suggesting that current in vitro conditions lack stimuli required to maintain gene expression in hepatocytes, which consequently also explains a corresponding deficiency of HLC. Conclusions: The present gene regulatory network approach identifies key transcription factors which require modulation to improve HLC differentiation. (C) 2015 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EXPRESSION; GROWTH; HEPATOTOXICITY; PROLIFERATION; Stem cells; Hepatocytes; Differentiation; Gene array; Bioinformatics; Transcriptomics; Gene networks |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Kinder- und Jugendmedizin |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 06 Jun 2019 12:38 |
| Last Modified: | 06 Jun 2019 12:38 |
| URI: | https://pred.uni-regensburg.de/id/eprint/4781 |
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