Immunofluorescence microscopy also showed that compared to untreated cells, Fg-pretreated S. suis 05ZYH33 infection caused a marked decrease in the amount of p120-catenin on the surface of hCMEC/D3 cells, while Fg-pretreated S. suis 05ZYH33Δmrp had no significant change in p120-catenin (Figure 5B). Here, CTNND1 is linked to infection.