Erythroid development of the FDCP‐Mix A4 multipotent cell line is governed by the relative concentrations of erythropoietin and interleukin 3

Erythroid development of the FDCP‐Mix A4 multipotent cell line is governed by the relative concentrations of erythropoietin and interleukin 3
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FDCP-Mix A4 多能细胞系的红细胞发育受促红细胞生成素和白细胞介素 3 的相对浓度控制

DOI:
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发表时间:
1995
影响因子:
6.5
通讯作者:
A. Whetton
A. Whetton
中科院分区:
医学2区
文献类型:
--
作者:
C. Heyworth;Mazin Alauldin;Michael A. Cross;L. Fairbairn;T. Dexter;A. Whetton

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总结:描述了促进FDCP‐Mix A4(A4)细胞系红系发育并伴随细胞增殖的条件。这种发展的要求是低浓度的白细胞介素3(IL-3)加上促红细胞生成素(epo)和血红素的存在。当高浓度的IL-3与促红细胞生成素和血红素一起加入时,细胞不会分化并保持其原始细胞形态。在没有促红细胞生成素的情况下,加入血红素不会促进红细胞发育,但血红素与促红细胞生成素的存在促进了增殖和成熟。A4细胞沿着红系谱系的形态成熟伴随着克隆形成潜能的逐渐丧失、A4细胞多能性的丧失、红细胞生成素受体表达的增加和β珠蛋白基因表达的增加。促有丝分裂对促红细胞生成素的反应性最初增加,随后随着细胞对所有促有丝分裂刺激变得不敏感,获得有丝分裂后成熟红细胞表型,反应性降低。
Summary .Conditions are described which promote the erythroid development of the FDCP‐Mix A4 (A4) cell line with accompanying proliferation of the cells. The requirements for this development are low concentrations of interleukin 3 (IL‐3) plus the presence of erythropoietin (epo) and haemin. When high concentrations of IL‐3 are added with erythropoietin and haemin the cells do not differentiate and maintain their blast cell morphology. Addition of haemin, in the absence of erythropoietin, does not promote erythroid development, but the presence of haemin with erythropoietin promotes increased proliferation and maturation. The morphological maturation of A4 cells along the erythroid lineage is accompanied by a gradual loss of clonogenic potential, loss of A4 cell multipotency, increased erythropoietin receptor expression, and an increased expression of the β‐globin gene. An initial increase in mitogenic responsiveness to erythropoietin is followed by a decrease as the cells become refractory to all mitogenic stimuli with the acquisition of a postmitotic, mature erythroid cell phenotype.
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影响因子: 20.3
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