PMID- 11122152 OWN - NLM STAT- MEDLINE DCOM- 20010215 LR - 20061115 IS - 0007-1048 (Print) IS - 0007-1048 (Linking) VI - 111 IP - 3 DP - 2000 Dec TI - Generation of functionally mature dendritic cells from the multipotential stem cell line FDCP-mix. PG - 890-7 AB - Dendritic cells (DCs) are crucial components of the immune system because of their unique ability as antigen-presenting cells for the initiation of a primary immune response. DCs, macrophages (Ms) and granulocytes (Gs) are believed to originate from a common myeloid progenitor cell. However, little is known about the molecular mechanisms leading to DC sublineage commitment. To establish a cell system that allows the molecular and biochemical analysis of DC differentiation and activation, we used the murine non-leukaemic, multipotential stem cell line FDCP-mix. FDCP-mix cells were cultured in various amounts of GM-colony stimulating factor (CSF) and interleukin (IL)-4 for up to 16 d and analysed for morphology, expression of CD34, c-kit, Gr-1, Mac-1, CD40, MHC-I, MHC-II and co-stimulatory molecules (CD80, CD86) using flow cytometry, and for their capacity to present foreign antigen to autologous T cells. Up to d 7, the majority of FDCP-mix cells consisted of cells differentiating along the G and M lineage. Thereafter, the number of dendritic cells increased until d 13. Differentiation along the DC lineage vs. the G and M lineage was favoured when FDCP-mix cells were cultured in high concentration GM-CSF (500 U/ml) throughout the culture and IL-4 from d 9 onwards. The dendritic cells generated from FDCP-mix cells were large, non-adherent cells with veiled processes and expressed MHC II, CD40, CD80 and CD86. After pulsing with a foreign antigen (keyhole limpet haemocyanin), FDCP-mix-derived dendritic cells stimulated [(3)H]-thymidine incorporation of naive T-cells in an autologous mixed lymphocyte reaction (MLR). Our results show that functionally mature dendritic cells are generated from the multipotential stem cell line FDCP-mix. This cell line thus provides the unique possibility of establishing multipotential transgenic cell lines capable of differentiation along the DC lineage. The experimental system described here should prove a valuable tool for studying DC differentiation and function. FAU - Schroeder, T AU - Schroeder T AD - Institute for Clinical Molecular Biology and Tumour Genetics, GSF, National Research Centre for Environment and Health, Munich, Germany. FAU - Lange, C AU - Lange C FAU - Strehl, J AU - Strehl J FAU - Just, U AU - Just U LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Br J Haematol JT - British journal of haematology JID - 0372544 RN - 207137-56-2 (Interleukin-4) RN - 83869-56-1 (Granulocyte-Macrophage Colony-Stimulating Factor) SB - IM MH - Animals MH - Antigen Presentation MH - Cell Differentiation/drug effects MH - Cell Line MH - Dendritic Cells/*physiology MH - Flow Cytometry MH - Granulocyte-Macrophage Colony-Stimulating Factor/*pharmacology MH - Interleukin-4/*pharmacology MH - Lymphocyte Culture Test, Mixed MH - Mice MH - Microscopy, Phase-Contrast MH - Stem Cells/*drug effects EDAT- 2000/12/21 11:00 MHDA- 2001/03/03 10:01 CRDT- 2000/12/21 11:00 PHST- 2000/12/21 11:00 [pubmed] PHST- 2001/03/03 10:01 [medline] PHST- 2000/12/21 11:00 [entrez] AID - bjh2421 [pii] PST - ppublish SO - Br J Haematol. 2000 Dec;111(3):890-7.