Journal: Developmental cell
Article Title: Pancreatic alpha and beta cell fate choice is directed by apical-basal polarity dynamics.
doi: 10.1016/j.devcel.2025.02.008
Figure Lengend Snippet: Figure 1. Disruption of apical-basal polarity by dominant-negative CDH1 mutants in the Matrigel overlay culture system or by Cdc42 knockout in the developing mouse pancreas alters beta cell specification (A) Design of dominant-negative CDH1 mutants with deletions in the extracellular domain (CDH1DE) or the p120ctn-binding site (CDH1DP). mCh, internal ribosome entry site (IRES)-coupled mCh (red fluorescent protein) reporter. (B) Confocal images of S5 (day 13) differentiated cells (± 72 h Dox treatment). EZR, EZRIN, green; BCAT, beta-catenin, gray; mCh, mCherry, red. Scale bar, 50 mm. (C) Flow cytometry quantification of INS single-positive beta cells and GCG positive alpha cells in mCherry+ and mCherry subpopulations after Dox treatment (S4–S6). CDH1DE and CDH1DP mutations led to the same degree of reduction in the INS+GCG/GCG+ ratio in mCherry+ mutant cells compared with mCherry
Article Snippet: Generation of transgenic Human embryonic stem cell (hESC) lines CDH1 mutant cell lines: The mutant CDH1 sequences27 (Addgene #45770 and #45773) were cloned into the piggyBac destination vector PB-TAC-ERN (Addgene #80475) for doxycycline induction and mCherry co-expression using Gateway technology (Thermo Fisher).
Techniques: Disruption, Dominant Negative Mutation, Knock-Out, Binding Assay, Flow Cytometry, Mutagenesis