Single-cell qPCR demonstrates that Repsox treatment changes cell fate from endoderm to neuroectoderm and disrupts epithelial-mesenchymal transition

Autoři: Qiuhong Li aff001;  Qingsong Huang aff001
Působiště autorů: School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China aff001;  South China Institute of Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China aff002
Vyšlo v časopise: PLoS ONE 14(10)
Kategorie: Research Article


A definitive endodermal cell lineage is a prerequisite for the efficient generation of mature endoderm derivatives that give rise to organs, such as the pancreas and liver. We previously reported that the induction of mesenchymal definitive endoderm cells depends on autocrine TGF-β signaling and that pharmacological blockage of TGF-β signaling by Repsox disrupts endoderm specification. The definitive endoderm arises from a primitive streak, which depends largely on TGF-β signaling. If the TGF-β pathway is blocked by Repsox, cell fate after the primitive streak induction is so-far unknown. We report here, that an induced primitive streak cell-population contained many T/SOX2 co-expressing cells, and subsequent inhibition of TGF-β signaling by Repsox promoted neuroectodermal cell fate, which was characterized using single-cell qPCR analysis and immunostaining. The process of epithelial-to-mesenchymal transition, which is inherent to the process of definitive endoderm differentiation, was also disrupted upon Repsox treatment. Our findings may provide a new approach to produce neural progenitors.

Klíčová slova:

Cell differentiation – Enzyme-linked immunoassays – Gene expression – Mesoderm – Signal inhibition – TGF-beta signaling cascade – Endoderm – Autocrine signaling


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2019 Číslo 10
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