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Culture of myeloid dendritic cells from bone marrow precursors
Published on: July 25, 2008
Generation and characterization of chicken bone marrow-derived dendritic cells
Zhiguang Wu1, Lisa Rothwell, John R Young
1Institute for Animal Health, Compton, Berkshire RG20 7NN, UK. zhiguang.wu@bbsrc.ac.uk
Immunology
|November 14, 2009
Summary
Researchers successfully cultured functional chicken bone marrow-derived dendritic cells (chBM-DCs) for the first time. These cells present antigens and stimulate T cells, advancing avian immunology research.
Area of Science:
- Immunology
- Cell Biology
- Avian Biology
Background:
- Dendritic cells (DCs) are crucial antigen-presenting cells in mammals, essential for initiating adaptive immune responses.
- In vitro generation of DCs from bone marrow or blood is a standard technique in mammalian research.
- The characterization and function of DCs in non-mammalian species, particularly poultry, remain less understood.
Purpose of the Study:
- To establish and characterize a method for culturing functional dendritic cells from chicken bone marrow (chBM-DCs).
- To investigate the surface phenotype and functional capabilities of cultured chBM-DCs.
- To assess the potential of chBM-DCs to stimulate T cell proliferation and influence cytokine profiles.
Main Methods:
- Chicken bone marrow cells were cultured for 7 days with recombinant chicken granulocyte-macrophage colony-stimulating factor (GM-CSF) and interleukin-4 (IL-4).
- Surface phenotype was analyzed using flow cytometry for markers including MHC class II and CD11c.
- Functional assays included mixed lymphocyte reactions (MLR) to assess T cell stimulation and mRNA analysis for Th1/Th2 cytokine expression after LPS or CD40L stimulation.
Main Results:
- Cultured cells exhibited typical DC morphology and a distinct surface phenotype (MHC class II(high), CD11c(high)).
- Maturation with LPS or CD40L significantly upregulated CD40, CD1.1, CD86, CD83, and DEC-205, while decreasing endocytosis and phagocytosis.
- Non-stimulated and stimulated chBM-DCs effectively stimulated peripheral blood lymphocytes (PBLs) in MLR, with stimulated DCs being more potent T-cell stimulators and promoting a Th1-biased response.
Conclusions:
- Functional chicken bone marrow-derived dendritic cells (chBM-DCs) were successfully cultured in vitro for the first time.
- These chBM-DCs possess antigen-presenting capabilities and can stimulate T cell proliferation, demonstrating their immunological relevance.
- The study provides a foundation for further research into avian immune responses and DC function in non-mammalian species.
