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December 8, 2025Blood

Silencing of BCL11A by disrupting enhancer-dependent epigenetic insulation

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Authors

JLJun Yi Stanley LimThe University of Texas Southwestern Medical CenterXGXiaofei GaoSt. Jude Children's Research HospitalYCYong ChengSt. Jude Children's Research Hospital

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Implication

Genome editing improves fetal hemoglobin levels in sickle cell disease and β-thalassemia, highlighting enhancer role.

Key Points

  • This research aims to understand how enhancer-dependent epigenetic insulation regulates BCL11A transcription during hematopoiesis.
  • Systemic analysis of the enhancer landscape and epigenetic states at the BCL11A locus
  • Characterization of BCL11A expression across hematopoietic cell types
  • Development of Capture Pore-C for chromatin conformation capture
  • Disruption of BCL11A enhancers using CRISPR
  • Depletion of BCL11A eRNAs through antisense oligonucleotides
  • CRISPR-mediated enhancer ablation effectively silences BCL11A expression
  • Identified enhancer RNAs that promote enhancer-promoter interactions
  • Disruption of 3D chromatin configuration impacting BCL11A regulation
  • Lineage-specific enhancer elements associated with chromatin accessibility and Polycomb domains

Cite This Study

Lim et al. (2025) studied this question.

synapsesocial.com/papers/69362f364fa91c937236d301https://doi.org/10.1182/blood-2025-732
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Targeted disruption of BCL11A ZnF4 enhances fetal hemoglobin in β-thalassemia and sickle cell disease: A druggable approach2025
  2. 2CRISPR-directed epigenetic reprogramming of the FLT1 locus: a novel strategy for reversing fetal hemoglobin silencing in β-thalassemia minor2026
  3. 3Epigenomic Reactivation of Fetal Hemoglobin via BCL11A Enhancer Editing A Proposed Durable Strategy for Malaria Prevention2026
  4. 4Targeting transcription factors associated with hemoglobinopathies: Lessons from successful interventions and implications for cancer2026
  5. 5Multiplex CRISPR/Cas9 genome editing in hematopoietic stem cells for fetal hemoglobin reinduction generates chromosomal translocations2021 · 51 citations