...
首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >MicroRNA-15a and -16-1 act via MYB to elevate fetal hemoglobin expression in human trisomy 13
【24h】

MicroRNA-15a and -16-1 act via MYB to elevate fetal hemoglobin expression in human trisomy 13

机译:MicroRNA-15a和-16-1通过MYB发挥作用,可提高人三体13中胎儿血红蛋白的表达

获取原文
获取原文并翻译 | 示例
           

摘要

Many human aneuploidy syndromes have unique phenotypic consequences, but in most instances it is unclear whether these phenotypes are attributable to alterations in the dosage of specific genes. In human trisomy 13, there is delayed switching and persistence of fetal hemoglobin (HbF) and elevation of embryonic hemoglobin in newborns. Using partial trisomy cases, we mapped this trait to chromosomal band 13q14; by examining the genes in this region, two microRNAs, miR-15a and -16-1, appear as top candidates for the elevated HbF levels. Indeed, increased expression of these microRNAs in primary human erythroid progenitor cells results in elevated fetal and embryonic hemoglobin gene expression. Moreover, we show that a direct target of these microRNAs, MYB, plays an important role in silencing the fetal and embryonic hemoglobin genes. Thus we demonstrate how the developmental regulation of a clinically important human trait can be better understood through the genetic and functional study of aneuploidy syndromes and suggest that miR-15a, -16-1, and MYB may be important therapeutic targets to increase HbF levels in patients with sickle cell disease and p-thalassemia.
机译:许多人类非整倍性综合征具有独特的表型后果,但在大多数情况下,尚不清楚这些表型是否可归因于特定基因剂量的改变。在人类三体性13中,胎儿血红蛋白(HbF)的转换和持续时间延迟,新生儿的胚胎血红蛋白升高。使用部分三体性病例,我们将该特征映射至染色体带13q14;通过检查该区域的基因,两个microRNA miR-15a和-16-1作为升高的HbF水平的最佳候选者。实际上,这些microRNA在原代人红系祖细胞中的表达增加导致胎儿和胚胎血红蛋白基因表达升高。此外,我们表明,这些microRNA的直接靶标MYB在沉默胎儿和胚胎血红蛋白基因中起着重要作用。因此,我们证明了如何通过非整倍性综合征的遗传和功能研究更好地理解具有临床意义的人类性状的发育规律,并提出miR-15a,-16-1和MYB可能是增加HbF水平的重要治疗靶点。镰状细胞病和β地中海贫血患者。

著录项

  • 来源
  • 作者单位

    Whitehead Institute for Biomedical Research, Cambridge, MA 02142 Broad Institute of Massachusetts Institute of Technology and Harvard University,Cambridge, MA 02142 Departments of Medicine and Pathology , Children's Hospital Boston, Boston, MA 02115 Departments of Pediatrics , Harvard Medical School, Boston, MA 02115$11Departments of Systems Biology, Harvard Medical School, Boston, MA 02115;

    Departments of Division of Hematology/Oncology, Children's Hospital Boston, Boston, MA 02115 Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA 02115;

    Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Cambridge, MA 02142;

    Departments of Pathology , Children's Hospital Boston, Boston, MA 02115;

    Whitehead Institute for Biomedical Research, Cambridge, MA 02142;

    Whitehead Institute for Biomedical Research, Cambridge, MA 02142 Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Cambridge, MA 02142 Howard Hughes Medical Institute, Massachusetts Institute of Technology, Cambridge, MA 02142;

    Whitehead Institute for Biomedical Research, Cambridge, MA 02142;

    Departments of Pediatrics , Harvard Medical School, Boston, MA 02115 Departments of Division of Hematology/Oncology, Children's Hospital Boston, Boston, MA 02115 Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA 02115 The Howard Hughes Medical Institute, Boston, MA 02115;

    Whitehead Institute for Biomedical Research, Cambridge, MA 02142 Broad Institute of Massachusetts Institute of Technology and Harvard University,Cambridge, MA 02142 Departments of Systems Biology, Harvard Medical School, Boston, MA 02115 Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02142;

    Whitehead Institute for Biomedical Research, Cambridge, MA 02142 Broad Institute of Massachusetts Institute of Technology and Harvard University,Cambridge, MA 02142 Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02142;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    erythropoiesis; globin gene regulation;

    机译:红细胞生成;球蛋白基因调控;

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