Evidence map›Paper›PMID 21881051›Full record

ArticleBlood2011

Site-specific gene correction of a point mutation in human iPS cells derived from an adult patient with sickle cell disease.

Jizhong Zou, Prashant Mali, Xiaosong Huang, Sarah N Dowey, Linzhao Cheng

Open access · bronzeAbstract readEvaluation StudyValidation Study
In one paragraph

Article in Blood, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 168 papers.

0numbers the graph read from it
0cells of the map it votes in
168citing papers in PubMed
16.0field-weighted citation impact, top 1% of its field
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

168 citing papers in PubMed, 296 citations in OpenAlex.

  1. Trial
  2. Article
  3. Genome editing strategies for targeted correction of β-globin mutation in sickle cell disease: From bench to bedside.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  4. Advanced therapy to cure diabetes: mission impossible is now possible?Frontiers in cell and developmental biology · 2024
    Review
  5. Review
  6. Article
  7. Article
  8. Precision Editing as a Therapeutic Approach for β-Hemoglobinopathies.International journal of molecular sciences · 2023
    Review
  9. Stem Cell-Based Therapeutic Approaches in Genetic Diseases.Advances in experimental medicine and biology · 2023
    Article
  10. Review
  11. Review
  12. Review
  13. Review
  14. Review
  15. Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. Review

108 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 2 countries.

Jizhong ZouInstitute for Cell Engineering, The JohnsHopkins University School of Medicine, Baltimore, MD, USA. jzou2@jhmi.edu
Prashant Mali
Xiaosong Huang
Sarah N Dowey
Linzhao Cheng
Stem Cell Institute · PAJohns Hopkins Medicine · US

Funding

Human embryonic stem (ES) and embroyonic germ (EG) cells to blood and immune cellR01HL073781 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI CHENG, LINZHAO · 2003 to 2013
$4.2M
NHLBI NIH HHS HL073781-05S1NHLBI NIH HHS R01 HL073781
6 · The paper itself

Abstract

Human induced pluripotent stem cells (iPSCs) bearing monogenic mutations have great potential for modeling disease phenotypes, screening candidate drugs, and cell replacement therapy provided the underlying disease-causing mutation can be corrected. Here, we report a homologous recombination-based approach to precisely correct the sickle cell disease (SCD) mutation in patient-derived iPSCs with 2 mutated β-globin alleles (β(s)/β(s)). Using a gene-targeting plasmid containing a loxP-flanked drug-resistant gene cassette to assist selection of rare targeted clones and zinc finger nucleases engineered to specifically stimulate homologous recombination at the β(s) locus, we achieved precise conversion of 1 mutated β(s) to the wild-type β(A) in SCD iPSCs. However, the resulting co-integration of the selection gene cassette into the first intron suppressed the corrected allele transcription. After Cre recombinase-mediated excision of this loxP-flanked selection gene cassette, we obtained "secondary" gene-corrected β(s)/β(A) heterozygous iPSCs that express at 25% to 40% level of the wild-type transcript when differentiated into erythrocytes. These data demonstrate that single nucleotide substitution in the human genome is feasible using human iPSCs. This study also provides a new strategy for gene therapy of monogenic diseases using patient-specific iPSCs, even if the underlying disease-causing mutation is not expressed in iPSCs.

Indexed as

Mutagenesis, Site-DirectedPoint MutationAdultAnemia, Sickle CellAnimalsBase Sequencebeta-GlobinsCells, CulturedCoculture TechniquesFeasibility StudiesGenetic TherapyHumansInduced Pluripotent Stem CellsMiceMolecular Sequence DataSequence Homology, Nucleic Acidbeta-Globins

Identifiers

PMID21881051
PMCPMC3208277
OpenAlexW1982360832

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.