they are interleukin 2-conditioned medium ( cm-il 2 ) , which was produced by w/fu rat spleen cells cultured with concanavalin a-conjugated sepharose beads , and cytotoxic cell differentiation factor-conditioned medium ( cm-ccdf ) , which was produced primarily by the unstimulated mouse peritoneal macrophages .
C0007634
cells
C0007589
differentiation