Cytokine production from TF-1 cells incubated with BMo or anti–HLA-DR mAb-pretreated BMo HTLV-2 strains.

IFN-γ (A) GM-CSF, (B) SCF, and (C) production were measured by ELISA in culture supernatants of TF-1 cells at time 0 or were exposed for 2, 6, or 24 hours to BMo (black bars) or BMo pretreated with anti–HLA-DR–specific mAbs D1.12 (gray bars).