Fig. 10.
Illustrative summary of results. Ablation of the epithelial-restricted splicing factors esrp1 and esrp2 led to the dysregulation of CNCC integration and differentiation in the medial ANC, causing a cleft between lateral ANC elements. These results suggest that epithelial-specific splice variants of yet to be determined factors are required for directing the juxtaposed mesenchymal-derived cells and promoting normal morphogenesis.