Caption The tail of bacteriophage T4 is shown before (left) and after (right) binding to a host cell. Upon attachment to the bacterium, the bacteriophage pierces the host cell envelope and injects ...

The wounds were located in the areas of tumors. Bacteriophages (T4) were modified with anticancer Tyr–Ile–Gly–Ser–Arg (YIGSR) peptides by phage display and injected intraperitoneally.