ArticleBlood advances2021
In vivo HSPC gene therapy with base editors allows for efficient reactivation of fetal γ-globin in β-YAC mice.
Article in Blood advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
74 citing papers in PubMed, 87 citations in OpenAlex.
- Zinc finger nuclease-mediated gene editing in hematopoietic stem cells results in reactivation of fetal hemoglobin in sickle cell disease.Scientific reports · 2024Trial
- Overview of Delivery Methods for Gene Editing.Methods in molecular biology (Clifton, N.J.) · 2027Review
- Production and Storage of High-Capacity Adenoviral Vectors for the Delivery of Advanced CRISPR Systems.Methods in molecular biology (Clifton, N.J.) · 2027Article
- Engineered lipid nanoparticles for in vivo and durable editing of haematopoietic stem cells within humanized mice.Nature biomedical engineering · 2026Article
- The future of pediatric gene therapy: CRISPR-Cas9, AI, and personalized medicine.Pediatric research · 2026Review
- Delivery Systems for Therapeutic Genome Editing: Challenges, Innovations, and Future Perspectives.MedComm · 2026Review
- BEstimate: a computational tool for the design and interpretation of CRISPR base editing experiments.Genome biology · 2026Article
- Engraftment Outcome of CRISPR/Cas9-Edited Hematopoietic Stem Cells for Genetic Diseases: A Systematic Review and Meta-Analysis of Preclinical Evidence.Journal of hematology · 2026Article
- Article
- Functional correction and genome integrity with duplex base editing of β-thalassemic hematopoietic stem cells.Genome biology · 2026Article
- Hematopoietic (stem) cells-The elixir of life?FEBS letters · 2026Review
- Review
- Multiplex base editing of BCL11A regulatory elements to treat sickle cell disease.Cell reports. Medicine · 2025Article
- Gene therapy for inborn errors of immunity: past progress, current status and future directions.Rare disease and orphan drugs journal · 2025Article
- Review
- Dissecting the epigenetic regulation of the fetal hemoglobin genes to unravel a novel therapeutic approach for β-hemoglobinopathies.Nucleic acids research · 2025Article
- Epigenetic Regulation of Erythropoiesis: From Developmental Programs to Therapeutic Targets.International journal of molecular sciences · 2025Review
- Article
- Identifying active and inhibitor-resistant MGMT variants for gene therapy.American journal of human genetics · 2025Article
- Multiplex base editing to protect from CD33 directed drugs for immune and gene therapy.Nature communications · 2025Article
14 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
Abstract
Base editors are capable of installing precise genomic alterations without creating double-strand DNA breaks. In this study, we targeted critical motifs regulating γ-globin reactivation with base editors delivered via HDAd5/35++ vectors. Through optimized design, we successfully produced a panel of cytidine and adenine base editor (ABE) vectors targeting the erythroid BCL11A enhancer or recreating naturally occurring hereditary persistence of fetal hemoglobin (HPFH) mutations in the HBG1/2 promoter. All 5 tested vectors efficiently installed target base conversion and led to γ-globin reactivation in human erythroid progenitor cells. We observed ~23% γ-globin protein production over β-globin, when using an ABE vector (HDAd-ABE-sgHBG-2) specific to the -113A>G HPFH mutation. In a β-YAC mouse model, in vivo hematopoietic progenitor/stem cell (HSPC) transduction with HDAd-ABE-sgHBG-2 followed by in vivo selection resulted in >40% γ-globin+ erythrocytes in the peripheral blood. This result corresponded to 21% γ-globin production over human β-globin. The average -113A>G conversion in total bone marrow cells was 20%. No alterations in hematological parameters, erythropoiesis, and bone marrow cellular composition were observed after treatment. No detectable editing was found at top-scoring, off-target genomic sites. Bone marrow lineage-negative cells from primary mice were capable of reconstituting secondary transplant-recipient mice with stable γ-globin expression. Importantly, the advantage of base editing over CRISPR/Cas9 was reflected by the markedly lower rates of intergenic HBG1/2 deletion and the absence of detectable toxicity in human CD34+ cells. Our observations suggest that HDAd-vectorized base editors represent a promising strategy for precise in vivo genome engineering for the treatment of β-hemoglobinopathies.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.