Dendritic cells generated from human blood in granulocyte macrophage-colony stimulating factor and interleukin-7
Details
Publication Year 1997-07,Volume 55,Issue #2,Page 103-116
Journal Title
HUMAN IMMUNOLOGY
Publication Type
Journal Article
Abstract
Dendritic cells (DC), with potentially important clinical applications, have been generated from human peripheral blood monocytes in the presence of GM-CSF and IL-4 (G4 DC). In the present report we show that DC with a novel phenotype can be generated from blood adherent mononuclear cells in the presence of GM-CSF and IL-7 (G7 DC). Adherent cells from PBMC, cultured in GM-CSF (600 U/ml) and IL-7 (6 U/ml), were transformed over 7 days into cells with DC morphology, at a yield of 1.2 - 1.6 X 10(6) per 10(7) PBMC. G7 DC not only expressed class I and class II MHC, CD1a, CD11c, CD23, CD40, CD54, CD58, CD80, CD86 and CD95, like G4 DC, but also CD21, which is the complement receptor type 2, a ligand for CD23 and a receptor for EBV and IFN-alpha. G7 DC were at least one log more effective in the autologous MLR and at lease two logs more effect-ive in the allogeneic MLR, than PBMC. They elicited proliferative responses of CD4 T cells to tetanus toxoid and CD8 T cells ro an EBV peptide, and stronger T-cell cytotoxicity to EBV peptide than G4 DC. Expression of CD21 by G7 DC suggests that IL-7 delivers a distinct signal to DC precursors and that G7 DC may be functionally distinct. (C) American Society for Histocompatibility and Immunogenetics, 1997. Published by Elsevier Science Inc.
Publisher
ELSEVIER SCIENCE INC
Keywords
TUMOR-NECROSIS-FACTOR; HUMAN BONE-MARROW; C-KIT-LIGAND; PERIPHERAL-BLOOD; T-CELL; LYMPHOCYTES-T; FACTOR-ALPHA; GAMMA-CHAIN; PROGENITORS; EXPRESSION
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Creation Date: 1997-07-01 12:00:00
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