KLK6 inhibition attenuates HGC-27 cell migration and invasion. (A) Wound healing of HGC-27 cells. (B) Migration and invasion of HGC-27 cells. (C) Quantification of cell migration and invasion. Data are presented as the mean ± SD (n=3). KLK6, kallikrein-related peptidase 6; Con, untreated control; sh, short hairpin; NC, non-coding control; OV, overexpression plasmid; n.s., not significant. *P<0.05.