...
首页> 外文期刊>Cellular immunology >Low expression of stem cell antigen-1 on mouse haematopoietic precursors is associated with erythroid differentiation
【24h】

Low expression of stem cell antigen-1 on mouse haematopoietic precursors is associated with erythroid differentiation

机译:干细胞抗原-1在小鼠造血前体上的低表达与红系分化有关

获取原文
获取原文并翻译 | 示例
           

摘要

Sca1 is a surface marker of haematopoietic stem cell but its role in erythropoiesis is still largely unknown. In this work we evaluated the ability of Sca1+ cells to differentiate into cells of the erythrocytic lineage. We performed FACS analysis of complete and purified Sca1+ bone marrow cells from C3H/HeNHsd mice and measured the expression of CD71 and Terr119 to evaluate the stages in erythroid development. Definitive erythropoiesis was evident within the complete bone marrow, while only proerythroblasts were found in Sca1+ cells, suggesting that Sca1 is a negative regulator of erythropoiesis. We also used FDCP-mix cells and their PU.1 and SCL transfectants. The PU.1 transfectant showed significantly increased expression of Sca1 and was not induced to differentiate into red blood cells, while the SCL transfectant showed significantly lower expression of Sca1 and produced red blood cells. The results of this study suggest that increased Sca1 expression on erythropoietic precursors inhibits erythroid differentiation.
机译:Sca1是造血干细胞的表面标记,但其在促红细胞生成中的作用仍然未知。在这项工作中,我们评估了Sca1 +细胞分化为红细胞谱系细胞的能力。我们对来自C3H / HeNHsd小鼠的完整和纯化的Sca1 +骨髓细胞进行了FACS分析,并测量了CD71和Terr119的表达以评估类红细胞发育的阶段。完整的骨髓内有明确的促红细胞生成作用,而在Sca1 +细胞中仅发现了成红细胞,这表明Sca1是促红细胞生成的负调节剂。我们还使用了FDCP-mix细胞及其PU.1和SCL转染子。 PU.1转染子显示Sca1的表达显着增加,没有被诱导分化为红细胞,而SCL转染子显示Sca1的表达显着降低并产生红细胞。这项研究的结果表明,促红细胞生成素前体上Sca1表达的增加会抑制类红细胞分化。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号