Luciferase siRNA, angiopep-2 peptides, Epirubicin Let-7g miRNA, Fibrin-binding CREKA, (glioma homing peptides), Biotin Pyridoxal, p42-MAPK siRNA, KLAK, Bcl-2 and VEGF siRNA, anti-GFP siRNA, Apoptin, etc. Here, BCL2 is linked to central nervous system cancer.