Project description:To characterize the differentiation by Sox2 KO, we performed microarray analyses of mouse ES cell line 2TS22C during the time-course being induced of Sox2 KO Keywords: development or differentiation design,time series design
Project description:The application of human embryonic stem (ES) cells in medicine; and biology has an inherent reliance on understanding the starting; cell population. Human ES cells differ from mouse ES cells and the; specific embryonic origin of both cell types is unclear. Previous; work suggested that mouse ES cells could only be obtained from; the embryo before implantation in the uterus1â5. Here we show; that cell lines can be derived from the epiblast, a tissue of the postimplantation; embryo that generates the embryo proper. These; cells, which we refer to as EpiSCs (post-implantation epiblastderived; ES cells), express transcription factors known to regulate; pluripotency, maintain their genomic integrity, and robustly differentiate; into the major somatic cell types as well as primordial; germ cells. The EpiSC lines are distinct from mouse ES cells in; their epigenetic state and the signals controlling their differentiation. Furthermore, EpiSC and human ES cells share patterns of; gene expression and signalling responses that normally function; in the epiblast. These results show that epiblast cells can be maintained; as stable cell lines and interrogated to understand how; pluripotent cells generate distinct fates during early development. *Note: EpiSCs were previously referred to as post-ES cells Experiment Overall Design: 3 biological replicates of each cell type (EpiSC and mouse ES) were compared.
