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<biogps><data><item key="owner">ArrayExpress Uploader</item><item key="pop_total">0</item><item key="species">mouse</item><item key="factors"><item><item key="GSM635236"><item key="CELL TYPE">undifferentiated Oct4, Sox2, cMyc, Klf4 doxycycline inducible mouse trophoblast stem cells</item></item></item><item><item key="GSM635237"><item key="CELL TYPE">trophoblast stem cell derived induced pluripotent stem cells line2, clone1</item></item></item><item><item key="GSM635238"><item key="CELL TYPE">trophoblast stem cell derived induced pluripotent stem cells line2, clone2</item></item></item><item><item key="GSM635239"><item key="CELL TYPE">undifferentiated mouse embryonic stem cells</item></item></item></item><item key="id">6294</item><item key="ownerprofile_id">arrayexpress_sid</item><item key="platform">6</item><item key="summary_wrapped">Extraembryonic trophoblast stem cells (TSC) can be converted to induced pluripotent stem cells (TSC-iPSCs) by overexpressing Oct4, Sox2,...</item><item key="geo_gse_id">E-GEOD-25872</item><item key="owner_profile">/profile/8773/arrayexpressuploader</item><item key="factor_count">1</item><item key="sample_count">4</item><item key="tags"><item>cell</item><item>fibroblast</item><item>stem cell</item><item>trophoblast</item></item><item key="lastmodified">Dec.12, 2014</item><item key="is_default">False</item><item key="geo_id_plat">E-GEOD-25872_A-AFFY-45</item><item key="slug">conversion-of-murine-extraembryonic-trophoblast-st</item><item key="geo_gds_id"/><item key="name">Conversion of murine extraembryonic trophoblast stem cells into induced pluripotent stem cells</item><item key="created">Nov.11, 2014</item><item key="summary">Extraembryonic trophoblast stem cells (TSC) can be converted to induced pluripotent stem cells (TSC-iPSCs) by overexpressing Oct4, Sox2, Klf4 and cMyc. TSC lines were derived from mice harboring a doxycycline inducible Oct4 allele and an Oct4-GFP reporter that has been demonstrated to be activated in cells upon acquisition of pluripotency. Oct4-GFP-positive blastocysts were collected at 3.5 dpc and transduced with lentiviruses encoding doxycycline inducible Sox2, Klf4 and cMyc transgenes (4FTSC). 4FTSC lines were passaged 10 times to establish a population of constantly growing, self-renewing TSCs in the presence of FGF4 and fibroblast conditioned media. To induce lineage conversion, 4FTSCs were cultured under ESC/Lif conditions and doxycycline. After 28 days, several colonies displaying ESC-characteristic dome-shaped colony morphology and bright Oct4-GFP fluorescence could be detected. The 4FTSC-derived colonies were isolated mechanically, dissociated by trypsinization, and plated onto MEFs in ESC medium without doxycycline demonstrating the independence of exogenous factors. They will be called TSC-iPSCs (Trophoblast stem cell derived induced pluripotent stem cells). To examine if the extraembryonic lineage-specific mRNA profile was overcome, the gene-expression profiles of TSC-iPSCs and their parental 4FTSCs were analyzed by microarray analyses and compared to control ESCs.</item><item key="source">http://www.ebi.ac.uk/arrayexpress/experiments/E-GEOD-25872</item><item key="sample_source">http://www.ebi.ac.uk/arrayexpress/experiments/E-GEOD-25872/samples/</item></data></biogps>
