Gene expression profiles between miRNA Negative control-treated and miR-124a-3p mimic treated-teratomas

ABSTRACT: The role of microRNAs (miRNAs) during mouse early development, especially in endoderm germ layer formation, is largely unknown. Here, using miRNA profiling, we discovered that miR-124a negatively regulates endoderm lineage commitment in mouse embryonic stem cells (mESCs). We showed that miR-124a inhibits endoderm differentiation in vitro through targeting the 3’ untranslated region (UTR) of Sox17 and Gata6, revealing the existence of an interplay between miR-124a and Sox17/Gata6 transcription factors in hepato-specific gene regulation. Besides, we proposed an in vivo system that utilizes teratoma to evaluate the functional role of miRNA in lineage specification. We demonstrated that ectopic expression of miR-124a in teratomas suppressed endoderm and mesoderm lineage differentiation while augmented the differentiation of ectoderm lineage. Collectively, our findings suggested that miR-124a plays a significant role in mESCs lineage commitment.

ORGANISM(S): Mus musculus

PROVIDER: GSE131346 | GEO | 2019/12/31

REPOSITORIES: GEO