Animals 4 Article 4 Cell Differentiation 4 Gene Expression Regulation, Enzymologic 4 Homeodomain Proteins 4 Mice 4 Nanog protein, mouse Octamer Transcription Factor-3 4 Pou5f1 protein, mouse 4 Promoter Regions, Genetic 4 RNA, Small Interfering 4 animal 4 animal cell 4 binding site 4 cell differentiation 4 controlled study 4 cytology 4 down regulation 4 embryo 4 gene expression regulation 4 homeodomain protein 4 messenger RNA 4 metabolism 4 mouse 4 nonhuman 4 octamer transcription factor 4 4 pluripotent stem cell 4 promoter region 4 short hairpin RNA 4 small interfering RNA 4