title: Profiling of primary peripheral blood- and monocyte-derived dendritic cells using monoclonal antibodies from the HLDA10 Workshop in Wollongong, Australia.
abstract: Dendritic cells (DCs) arise from hematopoietic stem cells and develop into a discrete cellular lineage distinct from other leucocytes. Mainly three phenotypically and functionally distinct DC subsets are described in the human peripheral blood (PB): plasmacytoid DCs (pDCs), which express the key marker CD303 (BDCA-2), and two myeloid DC subsets (CD1c(+) DC (mDC1) and CD141(+) DC (mDC2)), which express the key markers CD1c (BDCA-1) and CD141 (BDCA-3), respectively. In addition to these primary cell subsets, DCs can also be generated in vitro from either CD34(+) stem/progenitor cells in the presence of Flt3 (Fms-related tyrosine kinase 3) ligand or from CD14(+) monocytes (monocyte-derived DCs (mo-DCs)) in the presence of granulocyte-macrophage colony-stimulating factor+interleukin-4 (GM-CSF+IL-4). Here we compare the reactivity patterns of HLDA10 antibodies (monoclonal antibody (mAb)) with pDCs, CD1c(+) DCs and CD141(+) DCs, as well as with CD14(+)-derived mo-DCs cultured for 7 days in the presence of 100 ng/ml GM-CSF plus 20 ng/ml IL-4. A detailed profiling of these DC subsets based on immunophenotyping and multicolour flow cytometry analysis is presented. Using the panel of HLDA10 Workshop mAb, we could verify known targets selectively expressed on discrete DC subsets including CD370 as a selective marker for CD141(+) DCs and CD366 as a marker for both myeloid subsets. In addition, vimentin and other markers are heterogeneously expressed on all three subsets, suggesting the existence of so far not identified DC subsets.
authors.affiliation: Eberhard Karls Universität Tübingen, University Clinic of Tübingen, Faculty for Medicine, Department of Internal Medicine II, Division of Haematology, Immunology, Oncology, Rheumatology and Pulmonology, Laboratory for Stem Cell Research and Laboratory for Dendritic Cells , Tübingen, Germany.
authors.forename: Stella E
authors.initials: SE
authors.lastname: Autenrieth
authors.affiliation: Eberhard Karls Universität Tübingen, University Clinic of Tübingen, Faculty for Medicine, Department of Internal Medicine II, Division of Haematology, Immunology, Oncology, Rheumatology and Pulmonology, Laboratory for Stem Cell Research and Laboratory for Dendritic Cells , Tübingen, Germany.
authors.forename: Sabrina
authors.initials: S
authors.lastname: Grimm
authors.affiliation: Eberhard Karls Universität Tübingen, University Clinic of Tübingen, Faculty for Medicine, Department of Internal Medicine II, Division of Haematology, Immunology, Oncology, Rheumatology and Pulmonology, Laboratory for Stem Cell Research and Laboratory for Dendritic Cells , Tübingen, Germany.
authors.forename: Susanne Malaika
authors.initials: SM
authors.lastname: Rittig
authors.affiliation: Eberhard Karls Universität Tübingen, University Clinic of Tübingen, Faculty for Medicine, Department of Internal Medicine II, Division of Haematology, Immunology, Oncology, Rheumatology and Pulmonology, Laboratory for Stem Cell Research and Laboratory for Dendritic Cells , Tübingen, Germany.
authors.forename: Frank
authors.initials: F
authors.lastname: Grünebach
authors.affiliation: Eberhard Karls Universität Tübingen, Interfaculty Institute for Cell Biology, Department of Immunology , Tübingen, Germany.
authors.forename: Cécile
authors.initials: C
authors.lastname: Gouttefangeas
authors.affiliation: Eberhard Karls Universität Tübingen, University Clinic of Tübingen, Faculty for Medicine, Department of Internal Medicine II, Division of Haematology, Immunology, Oncology, Rheumatology and Pulmonology, Laboratory for Stem Cell Research and Laboratory for Dendritic Cells , Tübingen, Germany.
authors.forename: Hans-Jörg
authors.initials: HJ
authors.lastname: Bühring