to investigate cell-to-cell interactions in t cell stimulation by concanavalin a ( con a ) , three distinct events involved in the stimulation -- production of interleukin 2 ( il 2 ) , emergence of il 2 receptors , and responses of cells bearing il 2 receptors to il 2 -- have been separately determined as functions of the cell concentration .
C0007634
cells
C0007613
functions