Cell proliferation and apoptosis in multiple compensative experiments. Cell proliferation (A) and cell apoptosis rate (B, C) among groups in U-87 MG cells. Cell proliferation (D) and cell apoptosis rate (E, F) among groups in U-251 MG cells. AKIP1, A-kinase-interacting protein 1; NC, negative control; CXCL, C-X-C motif chemokine ligand; AV, Annexin V; PI, prodium Iodide.