In mice bearing the human fibrosarcoma, HT1080-hFAP tumors, the mEdg’scFv based liposomes (Bi-FAP/mEnd-IL and mEnd-IL) showed a rapid accumulation in the tumors within the initial minutes post application and a strong background fluorescence of the skin and organs of the mice (Figure 5A,B, Bis-IL and mEnd-IL). The gene discussed is FAP; the disease is fibrosarcoma.