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The regulatory role of Hyper-IL-6 in the differentiation of myeloid and erythroid progenitors derived from human cord blood

机译:Hyper-IL-6在人脐血来源的髓样和红系祖细胞分化中的调控作用

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This study was designed to investigate the regulatory role of soluble interleukin-6 receptor (sIL-6R) and interleukin-6 (IL-6) fusion protein (Hyper-IL-6) in the differentiation of human myeloid and erythroid progenitors by a serum-free liquid suspension culture system, using the human cord blood-derived CD34(+)CD38(-) cells as a target. We found that Hyper-IL-6 promoted the generation of CD15(+) granulocytic and CD14(+) monocytic cells and suppressed that of CD14(-)CD1a(+) dendritic cells from CD36(-)CD15(-)CD14(-)CD1a(-)IL-6R(+) myeloid progenitors. Conversely, CD34(+)CD38(-) cell-derived early erythroid progenitors were negative for IL-6R expression. Hyper-IL-6 potentiated the generation of CD36(+)glycophorinA(high) mature erythroid cells from the IL-6R(-) early erythroid progenitors. Our results indicate that Hyper-IL-6 augments the generation of CD15(+) granulocytic, CD14(+) monocytic and CD36(+)glycophorinA(high) cell and suppresses that of CD14(-)CD1a(+) dendritic cells. (c) 2006 Elsevier Inc. All rights reseved.
机译:这项研究旨在研究可溶性白介素6受体(sIL-6R)和白介素6(IL-6)融合蛋白(Hyper-IL-6)在血清对人骨髓和红系祖细胞分化中的调控作用。 -无液体悬浮培养系统,以人脐带血来源的CD34(+)CD38(-)细胞为靶标。我们发现,Hyper-IL-6促进了CD15(+)粒细胞和CD14(+)单核细胞的生成,并抑制了CD36(-)CD15(-)CD14(-)的CD14(-)CD1a(+)树突状细胞的生成。 )CD1a(-)IL-6R(+)骨髓祖细胞。相反,CD34(+)CD38(-)细胞衍生的早期红系祖细胞对IL-6R表达阴性。 Hyper-IL-6增强了从IL-6R(-)早期红系祖细胞生成CD36(+)glycophorinA(高)成熟红系细胞的能力。我们的结果表明,Hyper-IL-6增加了CD15(+)粒细胞,CD14(+)单核细胞和CD36(+)glycophorinA(high)细胞的生成,并抑制了CD14(-)CD1a(+)树突状细胞的生成。 (c)2006 Elsevier Inc.保留所有权利。

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