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Reactivation of Zeta-Globin by deletion of BCL11A and LRF in HUDEP cells (ATAC-seq)

ABSTRACT: Reactivation of Zeta-Globin by deletion of BCL11A and LRF in HUDEP cells (ATAC-seq)

PROVIDER: PRJNA725485 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR14333376_1.fastq.gz	Fastqsanger.gz
	SRR14333376_2.fastq.gz	Fastqsanger.gz
	SRR14333377_1.fastq.gz	Fastqsanger.gz
	SRR14333377_2.fastq.gz	Fastqsanger.gz
	SRR14333378_1.fastq.gz	Fastqsanger.gz

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Reactivation of Zeta-Globin by deletion of BCL11A and LRF in HUDEP cells

Project description:Reactivation of Zeta-Globin by deletion of BCL11A and LRF in HUDEP cells

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Reactivation of Zeta-Globin by deletion of BCL11A and LRF in HUDEP cells (ChIP-seq)

Project description:Reactivation of Zeta-Globin by deletion of BCL11A and LRF in HUDEP cells (ChIP-seq)

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Reactivation of Zeta-Globin by deletion of BCL11A and LRF in HUDEP cells (ChIP-seq)

Project description:The alpha and beta-globin loci harbour genes that are expressed during development and silenced throughout post-natal life. Learning to reactivate these genes may offer new therapeutic approaches for the hemoglobinopathies, the most common single gene disorders. Here, we address the mechanisms underlying the regulation of the gene encoding zeta-globin, the embryonically expressed alpha-like globin.

2021-04-28 | GSE173417 | GEO

Reactivation of Zeta-Globin by deletion of BCL11A and LRF in HUDEP cells (ATAC-seq)

2021-04-28 | GSE173416 | GEO

Reactivation of Zeta-Globin by deletion of BCL11A and LRF in murine cells

Project description:Reactivation of Zeta-Globin by deletion of BCL11A and LRF in murine cells

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The LRF/ZBTB7A transcription factor is a BCL11A-independent repressor of fetal hemoglobin

Project description:Hemoglobinopathies, including sickle cell disease and _-thalassemia, are global public health concerns. Induction of fetal-type hemoglobin (HbF) is a promising means to treat these disorders; however, precisely how HbF expression is silenced in adult erythroid cells is not fully understood. Here, we show that the LRF/ZBTB7A transcription factor is a potent repressor of HbF production. LRF inactivation derepresses embryonic/fetal _-globin expression in mouse and human adult erythroid cells. We employed genome-wide analysis of the transcriptome, chromatin accessibility and LRF occupancy sites, and demonstrate that LRF occupies the _-globin loci and maintains nucleosome density necessary for _-globin silencing. LRF confers its repressive activity through a unique NuRD repressor complex independent of BCL11A. Strikingly, human erythroid lines lacking both LRF and BCL11A exhibited almost a complete switch in expression from adult- to fetal-type globin, suggesting that these two factors cumulatively represent the near entirety of _-globin repressive activity in adult erythroid cells. RNA-seq, LRF ChIP-seq and ATAC-seq assays were used to investigtae LRF binding, effect of LRF depletion on transcription and chromatin landscape in mouse and human cells.

2016-01-15 | E-GEOD-74977 | biostudies-arrayexpress

Reactivation of Zeta-Globin by deletion of BCL11A and LRF in murine cells

2021-05-09 | GSE174110 | GEO

The LRF/ZBTB7A transcription factor is a BCL11A-independent repressor of fetal hemoglobin

2016-01-15 | GSE74977 | GEO

Analysis of locus-specific long-range chromatin interactions in BCL11A WT and KO HUDEP-2 cells by CAPTURE

Project description:We determined the locus-specific long-range chromatin interactions associated with the human beta-globin gene cluster in BCL11A wild-type and knockout HUDEP-2 cells

2021-07-30 | GSE181151 | GEO

Natural regulatory mutations elevate fetal globin via disruption of BCL11A or ZBTB7A binding

Project description:B-hemoglobinopathies such as Sickle Cell Disease (SCD) and b-thalassemia result from mutations in the adult b-globin gene. Reactivating the developmentally silenced fetal g-globin gene is a therapeutic goal for treating SCD and b-thalassemia1. Some forms of Hereditary Persistence of Fetal Hemoglobin (HPFH), a rare benign condition in which individuals express g‑globin throughout adulthood, are caused by point mutations in the g‑globin gene promoter at regions residing ~115 and 200 base pairs upstream of the transcription start site. Here we show that the major fetal globin repressors BCL11A and ZBTB7A/LRF directly bind to the -115 and ‑200 sites, respectively. Furthermore, introduction of naturally occurring HPFH mutations into erythroid cells by CRISPR/Cas9 disrupts repressor binding and raises g‑globin expression. These findings resolve the mystery surrounding how these HPFH mutations operate and demonstrate that BCL11A and ZBTB7A/LRF are major direct repressors of the fetal globin gene.

2018-01-29 | GSE103445 | GEO

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