Confocal immunofluorescence co-localization analysis of NDK and Myosin-9 in P. gingivalis-infected GECs at early (6 h post infection) and peak (24 h post infection) NDK secretion stages revealed an increasing high level of co-localization between NDK and Myosin-9, also supporting the involvement of Myosin-9 in NDK trafficking outside of the host cells. Here, MYH9 is linked to infection.