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Cytokine release patterns in mixed lymphocyte culture (MLC) of T-cells with dendritic cells (DC) generated from AML blasts contribute to predict anti-leukaemic T-cell reactions and patients’ response to immunotherapy.

Cell Commun. Adhes. 22, 49-65 (2016)
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To enlighten interactions between autologous, allogeneic or T-cells from patients after stem cell transplantation with leukaemia-derived-dendritic-cells containing dendritic cells or blast containing mononuclear cells (n = 21, respectively), we determined cytokine-concentrations (interleukin 2, 4, 6, 10, tumor-necrosis-factor-α, interferon-γ) in supernatants of mixed-lymphocyte-culture and in serum (n = 16) of 20 patients with acute myeloid leukaemia and three patients with myelodysplastic syndromes by cytometric-bead-assay. We correlated our data with lytic capabilities of stimulated T-cells in a fluorolysis-assay and clinical data: Dendritic-cell-/mononuclear-cell-stimulation of T-cells resulted in increased cytokine-levels in culture-medium compared to serum. There were no significant differences between cytokine-patterns of cases with/without lytic T-cell-activity, response to immunotherapy (stem cell transplantation/donor-lymphocyte-infusion) or graft-versus-host-disease. However, some predictive cytokine-cut-off-values for antileukaemic T-cell-activity, patients’ response to immunotherapy and graft-versus-host-disease could be defined. Cytokine-profiles alone, without functional assays, are no useful tool to predict antileukaemic T-cell-function, although they can indicate lytic T-cell-activity, patients’ response to immunotherapy and graft-versus-host-disease.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Acute Myeloid Leukaemia ; Cytokines ; Dendritic Cells ; Immunotherapy ; Stem Cell Transplantation ; T-cells
Reviewing status