Subpopulations of Cells Involved in the Human Mixed Lymphocyte Culture Response |
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Authors: | H. BLOMGREN |
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Affiliation: | Radiumhemmet, Karolinska Hospital, Stockholm, Sweden |
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Abstract: | Various subpopulations of human peripheral lymphoid cells were tested for their role in the mixed lymphocyte culture (MLC) response. Preparations of lymphocytes enriched for T cells, separated by a rosette sedimentation technique, were usually found to exhibit higher MLC responses than preparations enriched for B cells. The relatively high responses of B-cell-enriched preparations could largely be explained by contaminating T cells (approximately 5%) whose MLC reactivities were strongly enhanced by autologous non-T lymphocytes. Cell preparations enriched for B cells were found to be more potent stimulations of MLC responses than T-cell-enriched preparations in most responder-stimulator cell combinations. An MLC response could only be elicited in the presence of cells with characteristics of monocytes/macrophages. These cells could be derived from either the responder or the stimulator. |
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