Monocyte-derived macrophages prime peripheral T cells to undergo apoptosis by cell-cell contact via ICAM-1/LFA-1-dependent mechanism

K Zen, J Masuda, J Ogata - Immunobiology, 1996 - Elsevier
We designed the present study to clarify the mechanism of superantigen-induced apoptosis
of human mature T cells and to elucidate the pivotal roles of monocyte-derived
macrophages in induction of T cell apoptosis. Exposure of unfractionated human peripheral
blood mononuclear cells to SEA, SEB or PHA elicited apoptosis in T cells after 5-day culture.
In purified T cell preparations, SEB was unable to induce apoptosis, but was inductive when
the purified T cells were cocultured with mono cyte-derived macrophages adhering to plastic …