Evidence map›Paper›PMID 27405777›Full record

ArticleBlood2016

Forced chromatin looping raises fetal hemoglobin in adult sickle cells to higher levels than pharmacologic inducers.

Laura Breda, Irene Motta, Silvia Lourenco, Chiara Gemmo, Wulan Deng, Jeremy W Rupon, Osheiza Y Abdulmalik, Deepa Manwani, Gerd A Blobel, Stefano Rivella

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
7.7field-weighted citation impact, top 2% 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

45 citing papers in PubMed, 81 citations in OpenAlex.

  1. Cohesin mutations and chromatin changes in cancer.International journal of cancer · 2026
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  16. Engineering 3D genome organization.Nature reviews. Genetics · 2021
    Review
  17. Article
  18. Review
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  20. Modulating gene regulation to treat genetic disorders.Nature reviews. Drug discovery · 2020
    Review
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

10 authors at 5 institutions in 2 countries.

Laura BredaDepartment of Pediatrics, Division of Hematology-Oncology, Children's Blood and Cancer Foundation Laboratories, Weill Cornell Medical College, New York, NY; Department of Pediatrics, Division of Hematology, Children's Hospital of Philadelphia, Philadelphia, PA;ORCID 0000-0003-2133-4432
Irene MottaDepartment of Pediatrics, Division of Hematology-Oncology, Children's Blood and Cancer Foundation Laboratories, Weill Cornell Medical College, New York, NY; Department of Clinical Science and Community Health, University of Milan, Milan, Italy;
Silvia LourencoDepartment of Pediatrics, Division of Hematology-Oncology, Children's Blood and Cancer Foundation Laboratories, Weill Cornell Medical College, New York, NY; Department of Pediatrics, Division of Hematology, Children's Hospital of Philadelphia, Philadelphia, PA;
Chiara GemmoDepartment of Pediatrics, Division of Hematology-Oncology, Children's Blood and Cancer Foundation Laboratories, Weill Cornell Medical College, New York, NY;
Wulan DengTranscription Imaging Consortium, Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA; and.
Jeremy W RuponDepartment of Pediatrics, Division of Hematology, Children's Hospital of Philadelphia, Philadelphia, PA;
Osheiza Y AbdulmalikDepartment of Pediatrics, Division of Hematology, Children's Hospital of Philadelphia, Philadelphia, PA;
Deepa ManwaniDepartment of Pediatrics, Albert Einstein College of Medicine, Children's Hospital at Montefiore, Bronx, NY.
Gerd A BlobelDepartment of Pediatrics, Division of Hematology, Children's Hospital of Philadelphia, Philadelphia, PA;
Stefano RivellaDepartment of Pediatrics, Division of Hematology-Oncology, Children's Blood and Cancer Foundation Laboratories, Weill Cornell Medical College, New York, NY; Department of Pediatrics, Division of Hematology, Children's Hospital of Philadelphia, Philadelphia, PA;
Children's Hospital of Philadelphia · USAlbert Einstein College of Medicine · USCornell University · USHoward Hughes Medical Institute · USUniversity of Milan · IT

Funding

Regulation of Hemoglobin SwitchingR01HL119479 · NHLBI · CHILDREN'S HOSP OF PHILADELPHIA · PI Gerd A Blobel · 2013 to 2026
$8.0M
Clinical and Translational Science CenterKL2TR000458 · NCATS · WEILL MEDICAL COLL OF CORNELL UNIV · PI IMPERATO-MCGINLEY, JULIANNE L · 2012 to 2016
$2.1M
The influence of genotype on the outcome of gene transfer in beta-thalassemiaR01HL102449 · NHLBI · WEILL MEDICAL COLL OF CORNELL UNIV · PI RIVELLA, STEFANO · 2010 to 2014
$2.1M
CHANGES IN THE RBC PROTEOME DURING HEALTH AND DISEASER01DK084188 · NIDDK · CHILDREN'S HOSP OF PHILADELPHIA · PI ABDULMALIK, OSHEIZA Y · 2010 to 2014
$2.0M
Structure and Function of Stability-Enhanced Beta-Globin mRNAsK01HL103186 · NHLBI · CHILDREN'S HOSP OF PHILADELPHIA · PI ABDULMALIK, OSHEIZA Y · 2010 to 2014
$697k
NCATS NIH HHS KL2 TR000458NHLBI NIH HHS K01 HL103186NHLBI NIH HHS R01 HL102449NHLBI NIH HHS R01 HL119479NIDDK NIH HHS R01 DK084188
6 · The paper itself

Abstract

Overcoming the silencing of the fetal γ-globin gene has been a long-standing goal in the treatment of sickle cell disease (SCD). The major transcriptional enhancer of the β-globin locus, called the locus control region (LCR), dynamically interacts with the developmental stage-appropriate β-type globin genes via chromatin looping, a process requiring the protein Ldb1. In adult erythroid cells, the LCR can be redirected from the adult β- to the fetal γ-globin promoter by tethering Ldb1 to the human γ-globin promoter with custom-designed zinc finger (ZF) proteins (ZF-Ldb1), leading to reactivation of γ-globin gene expression. To compare this approach to pharmacologic reactivation of fetal hemoglobin (HbF), hematopoietic cells from patients with SCD were treated with a lentivirus expressing the ZF-Ldb1 or with chemical HbF inducers. The HbF increase in cells treated with ZF-Ldb1 was more than double that observed with decitabine and pomalidomide; butyrate had an intermediate effect whereas tranylcypromine and hydroxyurea showed relatively low HbF reactivation. ZF-Ldb1 showed comparatively little toxicity, and reduced sickle hemoglobin (HbS) synthesis as well as sickling of SCD erythroid cells under hypoxic conditions. The efficacy and low cytotoxicity of lentiviral-mediated ZF-Ldb1 gene transfer compared with the drug regimens support its therapeutic potential for the treatment of SCD.

Indexed as

AdultAnemia, Sickle CellAntigens, CD34ChromatinDNA-Binding ProteinsErythroid CellsFetal HemoglobinHemoglobin, SickleHumansLIM Domain ProteinsTranscription FactorsZinc FingersAntigens, CD34ChromatinDNA-Binding ProteinsFetal HemoglobinHemoglobin, SickleLDB1 protein, humanLIM Domain ProteinsTranscription Factors

Identifiers

PMID27405777
PMCPMC5000846
OpenAlexW2465447473

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.