CD8A and cyst: Among the three molecules, GRA1, GRA3, and ROP35, that showed significant correlations between the degrees of their increased expressions and increased survival rates of T. gondii cysts in the presence of CD8+ T cells in Figure 3, GRA3 has been shown to be present in both cyst wall and the space within the cysts detected in the brains of infected mice (18, 24), and was suggested to play a structural or organizational role during cyst development or in cyst maintenance (16).