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首页> 外文期刊>Cell biology international. >In vitro generation of murine myeloid dendritic cells from CD34-positive precursors.
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In vitro generation of murine myeloid dendritic cells from CD34-positive precursors.

机译:从CD34阳性前体体外产生鼠髓样树突状细胞。

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摘要

Dendritic cells (DCs) link the innate and adaptive immune system. Currently, murine DCs for cell biology investigations are developed from MHC class II-negative bone marrow (BM) precursor cells, non-depleted BM cells or BM monocytes in the presence of granulocyte-macrophage colony-stimulating factor (GM-CSF). Here we demonstrate an isolation procedure of functionally intact myeloid CD11c(+) CD11b(+) DCs derived from murine CD34-positive precursors. DCs derived from CD34(+) cells show functional internalization, maturation, cytokine secretion, MHC-restricted antigen presentation, and MHCII retrograde transport of antigens from the lysosomes to the cell surface. In comparison to the established method, the advantages of this isolation procedure are a shorter cultivation period, a superior transfection efficiency, the yield of a purer and more homogeneous population of immature DCs, and less consumption of cell culture medium and GM-CSF. The new isolation procedure and the functional quality of CD34(+) cell-derived murine myeloid DCs make them ideally suited for immunology and cell biology studies.
机译:树突状细胞(DC)连接先天性和适应性免疫系统。目前,在粒细胞-巨噬细胞集落刺激因子(GM-CSF)存在的情况下,从MHC II类阴性骨髓(BM)前体细胞,未消耗的BM细胞或BM单核细胞开发了用于细胞生物学研究的鼠类DC。在这里,我们演示了从鼠CD34阳性前体衍生的功能完整的骨髓CD11c(+)CD11b(+)DC的分离程序。衍生自CD34(+)细胞的DC表现出功能内在化,成熟,细胞因子分泌,MHC限制的抗原呈递以及MHCII抗原从溶酶体向细胞表面的逆行转运。与已建立的方法相比,此分离过程的优点是培养周期更短,转染效率更高,未成熟DC的纯度更高,更均一,并且细胞培养基和GM-CSF的消耗更少。新的分离程序和CD34(+)细胞源性鼠髓样DC的功能质量使其非常适合于免疫学和细胞生物学研究。

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