 Amniotic epithelial cells have also shown positive effects when used to treat severe burn victims by encouraging tissue repair of the recipient as well as treatment for certain autoimmune diseases.Researchers from the Kyoto Prefectural University of Medicine recently conducted a study in which they transplanted amniotic epithelial cells into the oral cavity to treat oral mucosal defects.Because skin grafts taken from the oral cavity cause defects on the donor site, scientists were looking for a better way of treating these defects without creating defects from transplantation.