AI Article Synopsis
- Mouse embryonic stem cells (ESCs) are extracted from blastocysts and exist in either naïve or primed states of pluripotency; the study focuses on manipulating the Pten gene using CRISPR-Cas9 to explore its effects on ESC characteristics.* -
- The research found that inhibiting Gsk3β helps maintain naïve pluripotency in Pten ESCs, while certain mutations in Pten led to suppressed pluripotency and reduced teratoma formation potential in these cells.* -
- Additionally, the study indicates that Pten influences the differentiation process of ESCs, as Pten-deficient or SF1670-treated ESCs exhibited enhanced expression of markers associated with ectoderm and
Article Abstract
Mouse embryonic stem cells (ESCs) are isolated from the inner cell mass of blastocysts, and they exist in different states of pluripotency-naïve and primed states. Pten is a well-known tumor suppressor. Here, we generated Pten mouse ESCs with the CRISPR-Cas9 system and verified that Pten ESCs maintained naïve pluripotency by blocking Gsk3β activity. Serum/LIF and 2i (MAPK and GSK3 inhibitors) conditions are commonly used for ESC maintenance. We show that the Pten-inhibitor SF1670 contributed to sustaining mouse ESCs and that Pten activation by the S380A, T382A, and T383A mutations (Pten-A3) suppressed the pluripotency of ESCs. The in vivo teratoma formation ability of SF1670-treated ESCs increased, while the Pten-A3 mutations suppressed teratoma formation. Furthermore, the embryoid bodies derived from Pten-deficient ESCs or SF1670-treated wild-type ESCs showed greater expression of ectoderm and pluripotency markers. These results suggest that Pten-mediated Gsk3β modulates the naïve pluripotency of ESCs and that Pten ablation regulates the lineage-specific differentiation.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7007436 | PMC |
| http://dx.doi.org/10.1038/s41419-020-2271-0 | DOI Listing |
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