Sertoli cells of the mouse testis originate from the coelomic epithelium.

  title={Sertoli cells of the mouse testis originate from the coelomic epithelium.},
  author={Jeannie Karl and Blanche Capel},
  journal={Developmental biology},
  volume={203 2},
During mouse development, the gonad begins to form shortly before 10. 5 days postcoitum (dpc) on the ventromedial side of the mesonephros. The XY gonad consists of germ cells and somatic cells. The origin of the germ cells is clearly established; however, the origin of the somatic cells, especially the epithelial supporting cell lineages, called Sertoli cells, is still unclear. Sertoli cells are the first somatic cell type to differentiate in the testis and are thought to express Sry, the male… 

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