The L-Lys modified by ortho-carboane was conjugated with [F7, P34]-NPY to obtain [K4-Nε(Cpa)]-[F7, P34]-NPY (Figure 2), which makes this molecule have extremely high affinity even at the nanomolar level and easy to be selectively ingested by tumor cells of the corresponding subtype (63). The gene discussed is NPY; the disease is neoplasm.