CDYL2b inhibits breast cancer cell migration and invasion through transcriptional inhibition of HPSE, HLA-F, and SELL. (A) MDA-MB-231 and Hs578T cells stably expressing pCDH, Flag-CDYL2b, or Flag-CDYL2b were transfected with plasmid DNAs encoding HA-HPSE, HA-HLA-F, or HA-SELL. The expression status of HA-HPSE, HA-HLA-F, or HA-SELL in these cells was validated by immunoblotting with an anti-HA antibody. (B-C) The established cell lines were subjected to Boyden's chamber migration assays and Matrigel-coated invasion assays. Representative images of Transwell migration and invasion assays are shown in B and corresponding quantitative results are shown in C. *, ** and *** are significant differences at p<0.05, p<0.01, and p<0.001 levels, respectively.