FOXM1 and glioblastoma: To determine the in vivo effect of circPIK3C2A on GBM progression, we injected circPIK3C2A-KD, circPIK3C2A-NC or circPIK3C2A-KD and FOXM1 overexpression (FOXM1-OE) con-transfected cells into male nude mice.