Downregulation of ILT4/HLA-G expression inhibits the proliferation, migration and invasion of CRC cells. (A) The effects of ILT4/HLA-G knockdown on proliferation were evaluated by Cell Counting Kit 8 assays. The effects of ILT4/HLA-G knockdown on migration were investigated by (B) wound-healing assay (magnification, ×40) and (C) Transwell migration assay (magnification, ×100). (D) The effects of ILT4/HLA-G knockdown on inva sion were measured by Matrigel invasion assays. Magnification, ×100. *P<0.05, **P<0.01 and ***P<0.001 vs. the corresponding NC. The results are presented as the mean ± standard deviation from three independent experiments. HLA-G, human leukocyte antigen G; ILT4, immunoglobulin like transcript 4; NC, negative control; sh, short hairpin.