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Transcriptional profiling of human embryonic stem cells differentiating to definitive and primitive endoderm and further towards the hepatic lineage
Högskolan i Skövde, Institutionen för vård och natur. Högskolan i Skövde, Forskningscentrum för Systembiologi.ORCID-id: 0000-0003-4697-0590
Cellartis AB, Göteborg.
Cellartis AB, Göteborg.
Cellartis AB, Göteborg.
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2010 (Engelska)Ingår i: Stem Cells and Development, ISSN 1547-3287, E-ISSN 1557-8534, Vol. 19, nr 7, s. 961-978Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Human embryonic stem cells (hESC) can differentiate into a variety of specialized cell types, and they constitute a useful model system to study embryonic development in vitro. In order to fully utilize the potential of these cells, the mechanisms that regulate the developmental processes of specific lineage differentiation need to be better defined. The aim of this study was to explore the molecular program involved in the differentiation of hESC towards definitive endoderm (DE) and further into the hepatic lineage, and to compare that to primitive endoderm (PrE) differentiation. To that end, we applied two protocols, a specific DE differentiation protocol and an intrinsic differentiation protocol that mainly mediates PrE formation. We collected hESC, hESC-derived DE, DE-derived hepatocyte-progenitors (DE-Prog), DE-derived hepatocyte-like cells (DE-Hep), and the corresponding PrE-derivatives. The samples were analyzed using microarrays, and we identified sets of genes which were exclusively up-regulated in DE-derivatives (compared to PrE-derivatives) at discrete developmental stages. We also investigated known protein interactions among the set of up-regulated genes in DE-Hep. The results demonstrate important differences between DE- and PrE-differentiation on the transcriptional level. In particular, our results identify a unique molecular program, exclusively activated during development of DE and the subsequent differentiation of DE towards the hepatic lineage. We identified key-genes and pathways of potential importance for future efforts to improve hepatic differentiation from hESC. These results reveal new opportunities for rational design of specific interventions with the purpose of generating enriched populations of DE derivatives, including functional hepatocytes.

Ort, förlag, år, upplaga, sidor
Mary Ann Liebert, 2010. Vol. 19, nr 7, s. 961-978
Nationell ämneskategori
Naturvetenskap
Forskningsämne
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:his:diva-3660DOI: 10.1089/scd.2009.0220ISI: 000279976900003PubMedID: 19757991Scopus ID: 2-s2.0-77954896478OAI: oai:DiVA.org:his-3660DiVA, id: diva2:292479
Tillgänglig från: 2010-02-08 Skapad: 2010-02-08 Senast uppdaterad: 2017-12-12Bibliografiskt granskad

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