title: Comparison of the biological properties of purified natural and recombinant human interleukin-2.
abstract: We compared the biological properties of the purified recombinant human IL-2 derived from E. coli with those of purified natural IL-2. Both had almost the same specific in vitro activities on a weight basis to support long-term proliferation of IL-2 dependent human peripheral blood lymphocytes, a mouse killer T cell line, and a mouse natural killer cell line; induce killer cells in normal mouse spleen cells; and induce antibody forming cells in nude mouse spleen cells. No differences in these biological activities were found between two forms of natural IL-2 that were separable by reverse phase high performance liquid chromatography.
mesh_terms: D000818:Animals; D002455:Cell Division / Q000187:drug effects; D002460:Cell Line; D002851:Chromatography, High Pressure Liquid; D004274:DNA, Recombinant / Q000378:metabolism*; D006801:Humans; D007376:Interleukin-2 / Q000235:genetics / Q000494:pharmacology*; D007694:Killer Cells, Natural / Q000187:drug effects; D051379:Mice; D008807:Mice, Inbred BALB C; D008819:Mice, Nude; D013936:Thymidine / Q000378:metabolism; D013997:Time Factors
chemical_list: D004274:DNA, Recombinant; D007376:Interleukin-2; D013936:Thymidine