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TGFβ signaling hyperactivation-induced tumorigenicity during the derivation of neural progenitors from mouse ESCs
- Source :
- Journal of molecular cell biology. 10(3)
- Publication Year :
- 2017
-
Abstract
- Clinical therapies of pluripotent stem cells (PSCs)-based transplantation have been hindered by frequent development of teratomas or tumors in animal models and clinical patients. Therefore, clarifying the mechanism of carcinogenesis in stem cell therapy is of great importance for reducing the risk of tumorigenicity. Here we differentiate Oct4-GFP mouse embryonic stem cells (mESCs) into neural progenitor cells (NPCs) and find that a minority of Oct4+ cells are continuously sustained at Oct4+ state. These cells can be enriched and proliferated in a standard ESC medium. Interestingly, the differentiation potential of these enriched cells is tightly restricted with much higher tumorigenic activity, which are thus defined as differentiation-resistant ESCs (DR-ESCs). Transcriptomic and epigenomic analyses show that DR-ESCs are characterized by primordial germ cell-like gene signatures (Dazl, Rec8, Stra8, Blimp1, etc.) and specific epigenetic patterns distinct from mESCs. Moreover, the DR-ESCs possess germ cell potential to generate Sycp3+ haploid cells and are able to reside in sperm-free spermaduct induced by busulfan. Finally, we find that TGFβ signaling is overactivated in DR-ESCs, and inhibition of TGFβ signaling eliminates the tumorigenicity of mESC-derived NPCs by inducing the full differentiation of DR-ESCs. These data demonstrate that these TGFβ-hyperactivated germ cell-like DR-ESCs are the main contributor for the tumorigenicity of ESCs-derived target cell therapy and that inhibition of TGFβ signaling in ESC-derived NPC transplantation could drastically reduce the risk of tumor development.
- Subjects :
- 0301 basic medicine
Carcinogenesis
medicine.medical_treatment
Cellular differentiation
Biology
Cell Line
Epigenesis, Genetic
03 medical and health sciences
Mice
Neural Stem Cells
Transforming Growth Factor beta
TGF beta signaling pathway
Genetics
medicine
Animals
Progenitor cell
Induced pluripotent stem cell
Molecular Biology
reproductive and urinary physiology
urogenital system
Cell Differentiation
Mouse Embryonic Stem Cells
Cell Biology
General Medicine
Stem-cell therapy
Embryonic stem cell
Neural stem cell
Cell biology
030104 developmental biology
medicine.anatomical_structure
embryonic structures
biological phenomena, cell phenomena, and immunity
Transcriptome
Germ cell
Signal Transduction
Subjects
Details
- ISSN :
- 17594685
- Volume :
- 10
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Journal of molecular cell biology
- Accession number :
- edsair.doi.dedup.....d770b8e8777b0e000045ca89179ccbec