期刊
STEM CELL REPORTS
卷 9, 期 5, 页码 1588-1603出版社
CELL PRESS
DOI: 10.1016/j.stemcr.2017.10.011
关键词
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资金
- Braukmann-Wittenberg-Herz-Stiftung
- Deutsche Forschungsgemeinschaft
- German Ministry for Education and Research, IFB-Tx
- REBIRTH Excellence Cluster
Pluripotent stem cells hold great promise for regenerative medicine since they can differentiate into all somatic cells. MicroRNAs (miRNAs) could be important for the regulation of these cell-fate decisions. Profiling of miRNAs revealed 19 differentially expressed miRNAs in the endoderm and 29 in the mesoderm when analyzing FACS-purified cells derived from human embryonic stem cells. The mesodermal-enriched miR-483-3p was identified as an important regulator for the generation of mesodermal PDGFRA(+) paraxial cells. Repression of its target PGAM1 significantly increased the number of PDGFRA(+) cells. Furthermore, miR-483-3p, miR-199a-3p, and miR-214-3p might also have functions for the mesodermal progenitors. The endoderm-specific miR-489-3p and miR-1263 accelerated and increased endoderm differentiation upon overexpression. KLF4 was identified as a target of miR-1263. RNAi-mediated downregulation of KLF4 partially mimicked miR-1263 overexpression. Thus, the effects of this miRNA were mediated by facilitating differentiation through destabilization of pluripotency along with other not yet defined targets.
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