Guo et al. modified the surface of DOX-loaded liposomes with a homing peptide with a sequence of YSAYPDSVPMMSK (YSA) having a high and specific binding affinity towards EphA2, which is a transmembrane receptor tyrosine kinase and is overexpressed on tumor cells as well as on tumor vasculature. The gene discussed is EPHA2; the disease is neoplasm.