Van Der Woude Syndrome, also known as lip-pit syndrome, is related to van der woude syndrome 2 and van der woude syndrome 1. An important gene associated with Van Der Woude Syndrome is IRF6 (Interferon Regulatory Factor 6), and among its related pathways/superpathways are Embryonic and Induced Pluripotent Stem Cells and Lineage-specific Markers and Wnt / Hedgehog / Notch. Affiliated tissues include tongue and heart, and related phenotypes are lip pit and cleft palate