Endocrine Abstracts

The adrenogonadal primordium develops from a thickening of the coelomic epithelium covering the urogenital ridge. After segregation of the primordium into the bipotential gonad and the adrenocortical primordium, the cortex is encapsulated by mesenchymal cells and infiltrated by migrating sympathoadrenal cells, which form the medulla. We have shown that the cell fate regulator sonic hedgehog (Shh) is not required for the formation of the adrenocortical primordium but is require...