Effect of CITED2 silencing on the expression of macrophage chemotactic factors. mRNA expression in (A) orthotopic xenograft tumors and (B) cells in culture, as determined by reverse transcription-quantitative polymerase chain reaction. (C) Protein expression in the two groups, as determined by ELISA. (D) Localization of CITED2 to the CCL20 promoter, as assessed by a chromatin immunoprecipitation assay using anti-CITED2 or IgG antibodies (control) in MDA-MB-231 and MDA-MB-468 cells. *P<0.05; **P<0.01; ***P<0.001 vs. scramble group (A-C) and vs. IgG (D). CITED2, Cbp/p300-interacting transactivator with Glu/Asp-rich carboxy-terminal domain-2; sh, short hairpin; CCL, C-C motif chemokine ligand; Ig, immunoglobulin; IL, interleukin; CX3CL, C-X3-C motif chemokine ligand.