partially purified preparations of synovial `` '' chondrocyte activating factors '' '' ( caf ) , which contain interleukin-1 ( il-1 ) , generally proved stronger activators of chondrocytes than recombinant , human , il-1 alpha ( rhil-1 alpha ) or il-1 beta ( rhil-1 beta ) .
C0021755
n interleukin
C0600251
, il-1 alp