Evidence map›Paper›PMID 19474450›Full record

ArticleBlood2009

A novel human gamma-globin gene vector for genetic correction of sickle cell anemia in a humanized sickle mouse model: critical determinants for successful correction.

Ajay Perumbeti, Tomoyasu Higashimoto, Fabrizia Urbinati, Robert Franco, Herbert J Meiselman, David Witte, Punam Malik

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

71 citing papers in PubMed, 112 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Review
  5. Article
  6. Article
  7. Clinical hematopoietic stem cell-based gene therapy.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  8. Review
  9. Ex vivo modification of hematopoietic stem and progenitor cells for gene therapy.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Precision Editing as a Therapeutic Approach for β-Hemoglobinopathies.International journal of molecular sciences · 2023
    Review
  15. Review
  16. Review
  17. Stem Cell-Based Therapeutic Approaches in Genetic Diseases.Advances in experimental medicine and biology · 2023
    Article
  18. Article
  19. Article
  20. Article

11 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

7 authors at 3 institutions in 1 country.

Ajay PerumbetiDivision of Experimental Hematology/Cancer Biology, Cincinnati Children's Research Foundation, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH 45229, USA.
Tomoyasu Higashimoto
Fabrizia Urbinati
Robert Franco
Herbert J Meiselman
David Witte
Punam Malik
Cincinnati Children's Hospital Medical Center · USUniversity of Cincinnati Medical Center · USUniversity of Southern California · US

Funding

ROLE OF ENDOTHELIN-1 INSICKLEACUTE CHEST SYNDROMEU54HL070595 · NHLBI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI MALIK, PUNAM · 2003 to 2007
$8.3M
Lentiviral vectors for gene therapy for beta-thalassemiaR01HL070135 · NHLBI · CINCINNATI CHILDRENS HOSP MED CTR · PI MALIK, PUNAM · 2002 to 2006
$1.5M
A preclinical large animal model for globin gene transferZ01HL006008 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI TISDALE, JOHN · 2008 to 2008
$330k
Intramural NIH HHS Z01 HL006008NHLBI NIH HHS R01 HL070135NHLBI NIH HHS R01-HL70135-01NHLBI NIH HHS U54-HL06-008NHLBI NIH HHS U54 HL070595NHLBI NIH HHS U54-HL070595
6 · The paper itself

Abstract

We show that lentiviral delivery of human gamma-globin gene under beta-globin regulatory control elements in hematopoietic stem cells (HSCs) results in sufficient postnatal fetal hemoglobin (HbF) expression to correct sickle cell anemia (SCA) in the Berkeley "humanized" sickle mouse. Upon de-escalating the amount of transduced HSCs in transplant recipients, using reduced-intensity conditioning and varying gene transfer efficiency and vector copy number, we assessed critical parameters needed for correction. A systematic quantification of functional and hematologic red blood cell (RBC) indices, organ pathology, and life span was used to determine the minimal amount of HbF, F cells, HbF/F-cell, and gene-modified HSCs required for correcting the sickle phenotype. We show that long-term amelioration of disease occurred (1) when HbF exceeded 10%, F cells constituted two-thirds of the circulating RBCs, and HbF/F cell was one-third of the total hemoglobin in sickle RBCs; and (2) when approximately 20% gene-modified HSCs repopulated the marrow. Moreover, we show a novel model using reduced-intensity conditioning to determine genetically corrected HSC threshold that corrects a hematopoietic disease. These studies provide a strong preclinical model for what it would take to genetically correct SCA and are a foundation for the use of this vector in a human clinical trial.

Indexed as

Genetic TherapyGenetic VectorsAnemia, Sickle CellAnimalsDisease Models, AnimalErythrocyte IndicesErythrocytes, AbnormalFetal Hemoglobingamma-GlobinsHumansMiceMice, SCIDRegulatory Elements, TranscriptionalFetal Hemoglobingamma-Globins

Identifiers

PMID19474450
PMCPMC2723013
OpenAlexW2021651842

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.