Silencing of p21Cip1 also inhibited the migratory ability of both rhabdomyosarcoma cell lines (Figure 3D), with a stronger effect on RMSp53Neu-1 (80% in comparison to cells treated with control siRNA) than on RMSp53Neu-5 (30%). This evidence concerns the gene CDKN1A and rhabdomyosarcoma.