Bmp signaling regulates a dosage dependent transcriptional program to control facial skeletal development.. Mus musculus

Conditional Bmp4 overexpression (Bmp4 OE), using a tetracycline regulated Bmp4 gain of function allele, resulted in facial skeletal changes that were most dramatic after an E10.5 Bmp4 induction. We identified a number of genes predominantly transcriptional regulators controlling self-renewal, osteoblast differentiation, and negative Bmp autoregulation whose expression were change after Bmp4 overexpression in the cranial neural crest cells. Overall design: We performed expression profiling using RNA extracted from E11.5 Bmp4 OE mandibles that were induced with dox for 24 hours. Using a 2-fold change (p< 0.05) as threshold, we identified 144 down-regulated and 120 up-regulated genes.