Dispase-based dissociation assay of HaCaT cells treated with Ctrl or PV-IgG and indicated concentrations of HDAC3 inhibitor RGFP966. Representative images and quantifications of (n = 5, Ctrl-IgG vs PV-IgG p < 0.0001, PV-IgG vs PV-IgG 1 M RGFP966 p < 0.0001, PV-IgG vs PV-IgG 5 M RGFP966 p < 0.0001) are shown.