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人多能干细胞向造血细胞分化及向成熟髓系细胞生成。

Hematopoietic differentiation and production of mature myeloid cells from human pluripotent stem cells.

机构信息

National Primate Research Center, University of Wisconsin Graduate School, Madison, Wisconsin, USA.

出版信息

Nat Protoc. 2011 Mar;6(3):296-313. doi: 10.1038/nprot.2010.184. Epub 2011 Feb 17.

Abstract

In this paper, we describe a protocol for hematopoietic differentiation of human pluripotent stem cells (hPSCs) and generation of mature myeloid cells from hPSCs through expansion and differentiation of hPSC-derived lin(-)CD34(+)CD43(+)CD45(+) multipotent progenitors. The protocol comprises three major steps: (i) induction of hematopoietic differentiation by coculture of hPSCs with OP9 bone marrow stromal cells; (ii) short-term expansion of multipotent myeloid progenitors with a high dose of granulocyte-macrophage colony-stimulating factor; and (iii) directed differentiation of myeloid progenitors into neutrophils, eosinophils, dendritic cells, Langerhans cells, macrophages and osteoclasts. The generation of multipotent hematopoietic progenitors from hPSCs requires 9 d of culture and an additional 2 d to expand myeloid progenitors. Differentiation of myeloid progenitors into mature myeloid cells requires an additional 5-19 d of culture with cytokines, depending on the cell type.

摘要

在本文中,我们描述了一种从人类多能干细胞(hPSC)中生成造血细胞并通过扩增和分化 hPSC 来源的 lin(-)CD34(+)CD43(+)CD45(+)多能祖细胞生成成熟髓系细胞的方案。该方案包括三个主要步骤:(i)通过将 hPSC 与 OP9 骨髓基质细胞共培养诱导造血分化;(ii)用高剂量粒细胞-巨噬细胞集落刺激因子短期扩增多能髓系祖细胞;和(iii)定向分化髓系祖细胞为中性粒细胞、嗜酸性粒细胞、树突状细胞、朗格汉斯细胞、巨噬细胞和破骨细胞。从 hPSC 中生成多能造血祖细胞需要 9 天的培养时间,并需要额外的 2 天时间来扩增髓系祖细胞。髓系祖细胞分化为成熟的髓系细胞需要根据细胞类型再用细胞因子培养 5-19 天。

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