cytotoxic t lymphocytes fight against cancer cell

blood tumor antigen magnification physiology anatomy immunotherapy morphology science biology immunology oncology biotechnology lysis research three dimensional biological cell cancer illness carcinogen immune system white immunity process healthcare medicine killer-t-cell t-cell molecular structure infectious disease medical clinic condition procedure fighting biomedical scientific experiment imaging technique removing cut macrophotography close-up attached cytotoxic lymphocyte perforin granzymes ctl leukocytes killer cells isolated fight eliminate evasion infection resistance microscopic therapy clinical macro infections rendering pathology