Evidence map›Paper›PMID 41629994›Full record

ArticleGenome biology2026

Functional correction and genome integrity with duplex base editing of β-thalassemic hematopoietic stem cells.

Nikoletta Y Papaioannou, Petros Patsali, Julia Klermund, Panayiota L Papasavva, Geoffroy Andrieux, Lola Koniali, Basma Naiisseh, Soteroula Christou, Maria Sitarou, Marina Kleanthous and 2 more

Abstract read
In one paragraph

Article in Genome biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Electroporation for High-Efficiency Delivery of CRISPR to Hematopoietic Cells.Methods in molecular biology (Clifton, N.J.) · 2027
    Article
  2. Review
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Nikoletta Y PapaioannouDepartment of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus.
Petros PatsaliDepartment of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus.
Julia KlermundInstitute for Transfusion Medicine and Gene Therapy, Medical Center - University of Freiburg, Freiburg, Germany.
Panayiota L PapasavvaDepartment of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus.
Geoffroy AndrieuxInstitute of Medical Bioinformatics and Systems Medicine, Medical Center - University of Freiburg, Freiburg, Germany.
Lola KonialiDepartment of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus.
Basma NaiissehDepartment of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus.
Soteroula ChristouThalassemia Center, State Health Services Organization of Cyprus, Nicosia, Cyprus.
Maria SitarouThalassemia Center, State Health Services Organization of Cyprus, Larnaca, Cyprus.
Marina KleanthousDepartment of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus.
Toni CathomenInstitute for Transfusion Medicine and Gene Therapy, Medical Center - University of Freiburg, Freiburg, Germany.
Carsten W LedererDepartment of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus. lederer@cing.ac.cy.

Funding

COST Actions CA21113 GenE-HumDiNorway Grants 2014-2021 New Infrastructure for the Diagnosis and Therapy of PatientsResearch and Innovation Foundation EXCELLENCE/1216/0092
6 · The paper itself

Abstract

backgroundBeta-thalassemia is among the most common monogenic disorders, posing a major global health challenge. Editing of genetic modifiers, such as BCL11A erythroid enhancer and HBG promoters, enhances fetal hemoglobin expression and confers major therapeutic potential. Double-strand-break (DSB)-independent genome editing tools, such as base editors (BE), are potentially safer and better suited for multiplexed application than DSB-dependent CRISPR/Cas technology. However, harmful on- and off-target events remain a concern and must be excluded before clinical application, including chromosomal rearrangements invisible to standard detection technologies.

resultsUsing primary patient-derived CD34

conclusionsDuplex BE targeting both BCL11A erythroid enhancer and HBG promoter enables functional correction and genome integrity. Our study highlights the efficacy, safety, and therapeutic potential of the present duplex BE approach.

Indexed as

beta-ThalassemiaGene EditingHematopoietic Stem CellsCarrier ProteinsCRISPR-Cas SystemsEnhancer Elements, GeneticFetal HemoglobinHumansNuclear ProteinsPromoter Regions, GeneticRepressor ProteinsBCL11A protein, humanCarrier ProteinsFetal HemoglobinNuclear ProteinsRepressor ProteinsBase editingCAST-seqChromosomal aberrationHSPCsHUDEP-2Multiplex DNA editingThalassemia

Identifiers

PMID41629994
PMCPMC12952134

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LicenceCC BY-NC-ND
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Registered trials

None linked

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.