The results indicated that both Eg-Fis1 and Eg-PDCD6 were distributed in all tissues of E., including the inner body and tegument of adult worms, the germinal layer (GL) of the cyst wall, and the parenchymal region and tegument of PSCs, but both were absent from the laminated layer (LL) of the cyst wall (Figure 4). Here, FIS1 is linked to cyst.