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E-cadherin (CDH1) is involved in maintaining cell-cell adhesions in embryonic stem cells (ESCs). However, its function in the context of cell fate decisions is largely unknown. Using mouse ESCs (mESCs),… Click to show full abstract
E-cadherin (CDH1) is involved in maintaining cell-cell adhesions in embryonic stem cells (ESCs). However, its function in the context of cell fate decisions is largely unknown. Using mouse ESCs (mESCs), we demonstrate that E-cadherin and β-catenin interact at the membrane and continue to do so upon internalization within the cell. Cdh1-/- mESCs failed to form tight colonies, with altered differentiation marker expression, and retention of pluripotency factors during differentiation. Interestingly, Cdh1-/- mESCs showed dramatically reduced β-catenin levels. Transcriptional profiling of Cdh1-/- mESCs displayed a significant alteration in the expression of a subset of β-catenin targets in a cell state- and GSK3β-dependent manner. Our findings hint at hitherto unknown roles played by E-cadherin in regulating the activity of β-catenin in ESCs.
Journal Title: FEBS letters
Year Published: 2022
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