Konno H, Yamashita A, Tadakuma T, Sakaguchi S
Second Department of Surgery, Hamamatsu University School of Medicine, Japan.
Biotherapy. 1991;3(3):211-8. doi: 10.1007/BF02171684.
Human recombinant interleukin-2 (IL-2) was entrapped in liposome, consisting of egg phosphatidylcholine (PC) and cholesterol. The peri-tumor injections of IL-2 liposome inhibited significantly the growth of solid tumor and prolonged the survival time of rats with solid tumors which were induced by a subcutaneous (s.c.) inoculation of AH-66 cells. Immunohistochemical staining of peritoneal exudate cells and tumor tissues revealed a marked accumulation of activated macrophages in and around the tumor tissues induced by the local injections of IL-2 liposome.
