to understand the role fibroblasts play in mediating and amplifying the effects of inflammatory cytokines , we determined whether recombinant interleukin 1 ( il-1 ) and recombinant tumor necrosis factor ( tnf ) , alone and in combination , stimulated fibroblasts to produce il-1 beta .
C0021755
recombinant interleukin 1
C0021753
il-1 beta