Genetic dissection of Pitx2 in craniofacial development uncovers new functions in branchial arch morphogenesis, late aspects of tooth morphogenesis and cell migration.

Abstract excerpt

Pitx2, a paired-related homeobox gene that encodes multiple isoforms, is the gene mutated in the haploinsufficient Rieger Syndrome type 1 that includes dental, ocular and abdominal wall anomalies as cardinal features. Previous analysis of the craniofacial phenotype of Pitx2-null mice revealed that Pitx2 was both a positive regulator of Fgf8 and a repressor of Bmp4-signaling, suggesting that Pitx2 may function as...

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