 These scientists used lab rabbits with the oral mucosal defects and transplanted cultured amniotic epithelial cells to the defected areas.The cultured amniotic epithelial cells showed markers found on the oral mucosal cells such as certain keratins.They found that the amniotic epithelial cells differentiation into mucosal-like cells and remained on the mucosal defect and therefore could be a possible mechanism for treating those defects.