Article
Cell fate specification in the lingual epithelium is controlled by antagonistic activities of Sonic hedgehog and retinoic acid.
PLoS genetics - 1 Jul 2017
El Shahawy Maha, Reibring Claes-Göran, Neben Cynthia L, Hallberg Kristina, Marangoni Pauline, Harfe Brian D, Klein Ophir D, Linde Anders, Gritli-Linde Amel
Abstract excerpt
The interaction between signaling pathways is a central question in the study of organogenesis. Using the developing murine tongue as a model, we uncovered unknown relationships between Sonic hedgehog (SHH) and retinoic acid (RA) signaling. Genetic loss of SHH signaling leads to enhanced RA activity subsequent to loss of SHH-dependent expression of Cyp26a1 and Cyp26c1. This causes a cell identity switch,...
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