OBJECTIVETo study the effect of kallikrein-related peptidase 10 (KLK10) on the proliferation and invasiveness of human tongue cancer cell line Tca8113.

METHODSThe eukaryotic expression vector harboring KLK10 gene (pIRES2-EGFP-KLK10) was transfected in Tca8113 cells and the stable cell lines were selected by G418 screening. The mRNA and protein expression of KLK10 in transfected Tca8113 cells were assayed by RT-PCR and Western blotting, respectively, and the proliferation and invasiveness of the cells were evaluated by MTS cell growth assay and Transwell chamber invasion experiments.

RESULTSA stable Tca8113 cell line with high KLK10 expression was obtained, which showed significantly increased mRNA and protein expression levels of KLK10 and obviously attenuated proliferation and invasiveness compared with control and empty vector-transfected cells (P<0.05).

CONCLUSIONEnhancing KLK10 gene expression can decrease the proliferation and invasiveness of human tongue cancer cells in vitro.