recombinant human il-5 is biologically active on some human b-cll cells ( proliferation in the presence of il-2 ) and on murine bcl1 cells ( proliferation ) at a low specific activity ( about 1-2 x 10 ( 3 ) u/mg ) and on human eosinophils ( eosinophil peroxidase assay ) at a high specific activity ( at least 5 x 10 ( 6 ) u/mg ) .
C0021756
il-2
C0086418
human