Congenital diaphragmatic hernia (CDH) and associated pulmonary hypoplasia (PH) are thought to be caused by a malformation of the diaphragmatic and pulmonary mesenchyme. Dispatched RND transporter family member 1 (Disp-1) encodes a transmembrane protein that regulates the release of cholesterol and palmitoyl, which is critical for normal diaphragmatic and airway development. Disp-1 is strongly expressed in mesenchymal compartments of fetal diaphragms and lungs. Recently, Disp-1 mutations have been identified in patients with CDH.
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