Mice were orally immunized with LL-plSAM-GILE and their serum antibody levels (ELISA), lymphocyte proliferation (MTS), IFN-γ levels (ELISpot), IL-4 levels (flow cytometry, FCM), T cells (FCM), growth of hepatic cysts (Ultrasound), and weights were measured to evaluate the protective effect of LL-plSAM-GILE. The gene discussed is IFNG; the disease is Hepatic cysts.