Fig. 4.

Mean relative closure (±SEM) from all biological replicates of scratches in oral epithelial cells challenged with heat inactivated and viable P. gingivalis wild type strain ATCC 33277, ΔKgp, and ΔRgpArgpB mutants (a) and heat-inactivated and viable P. gingivalis wild-type strain W50, ΔKgp, and ΔRgpArgpB mutants and with addition of KYT-36 and KYT-1 peptides (b). *=significantly different from wild-type strain of the same MOI (p<0.001). ‡=significantly different from wild-type strain of the same MOI (p<0.05). #=significantly different from heat-inactivated P. gingivalis of the same MOI and strain (p<0.05). §=significantly different from the ΔKgp mutant (p<0.05).