Evidence map›Paper›PMID 19220418›Full record

ArticleEuropean journal of haematology2009

Erythroid Kruppel-like factor (EKLF) is recruited to the gamma-globin gene promoter as a co-activator and is required for gamma-globin gene induction by short-chain fatty acid derivatives.

Susan P Perrine, Rishikesh Mankidy, Michael S Boosalis, James J Bieker, Douglas V Faller

Registry-linked trialAbstract read
In one paragraph

Article in European journal of haematology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04432623 (A Phase 1b Sequential Open Label Dose-Ranging Study of Safety, Pharmacokinetics, and Preliminary Activity of Benserazide in Subjects With Beta Thalassemia Intermedia and Sickle Cell Disease), which is not on this map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.6field-weighted citation impact, top 18% 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.

NCT04432623 phase1 / phase2enrolling by invitationnot on this mapstarted 2020, after this paper: background citation

A Phase 1b Sequential Open Label Dose-Ranging Study of Safety, Pharmacokinetics, and Preliminary Activity of Benserazide in Subjects With Beta Thalassemia Intermedia and Sickle Cell Disease

TypeinterventionalSponsorPhoenicia BioScienceRan2020 to 2026Enrolled36ConditionsBeta Thalassemia Intermedia, Sickle Cell DiseaseArmsBenserazide Only Product
3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 27 citations in OpenAlex.

  1. Trial
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  12. Butyrate histone deacetylase inhibitors.BioResearch open access · 2012
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Fetal globin gene inducers: novel agents and new potential.Annals of the New York Academy of Sciences · 2010
    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

5 authors at 2 institutions in 1 country.

Susan P PerrineCancer Center, Boston University School of Medicine, Boston, MA 02118, USA.
Rishikesh Mankidy
Michael S Boosalis
James J Bieker
Douglas V Faller
Boston University · USIcahn School of Medicine at Mount Sinai · US

Funding

Function of Putative Determinant in HematopoiesisR01DK046865 · NIDDK · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI JAMES J BIEKER · 1993 to 2026
$11.2M
NOVEL GLOBIN GENE MODULATORSR01DK052962 · NIDDK · BOSTON UNIVERSITY MEDICAL CAMPUS · PI PERRINE, SUSAN PARK · 1998 to 2016
$4.2M
Signal Transduction by Androgen in Prostate CellsR01CA101992 · NCI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI FALLER, DOUGLAS V · 2004 to 2013
$2.4M
Pharmacophore-Modeled Screening for HbF-Inducing AgentsR41HL078276 · NHLBI · GENE REGULATION LABORATORIES, INC. · PI PERRINE, SUSAN PARK · 2004 to 2004
$359k
Oral Therapeutic for Beta-ThalassemiaR42DK064535 · NIDDK · GENE REGULATION LABORATORIES, INC. · PI PERRINE, SUSAN PARK · 2005 to 2006
$287k
Oral Therapeutic for Beta-ThalassemiaR41DK064535 · NIDDK · GENE REGULATION LABORATORIES, INC. · PI FALLER, DOUGLAS V · 2003 to 2003
$182k
NCI NIH HHS CA101992NCI NIH HHS R01 CA101992NHLBI NIH HHS HL-78276NHLBI NIH HHS R41 HL078276NIDDK NIH HHS DK46865NIDDK NIH HHS DK-52962NIDDK NIH HHS DK64535NIDDK NIH HHS R01 DK046865NIDDK NIH HHS R01 DK052962NIDDK NIH HHS R41 DK064535NIDDK NIH HHS R42 DK064535
6 · The paper itself

Abstract

objectivesThe erythroid Kruppel-like factor (EKLF) is an essential transcription factor for beta-type globin gene switching, and specifically activates transcription of the adult beta-globin gene promoter. We sought to determine if EKLF is also required for activation of the gamma-globin gene by short-chain fatty acid (SCFA) derivatives, which are now entering clinical trials.

methodsThe functional and physical interaction of EKLF and co-regulatory molecules with the endogenous human globin gene promoters was studied in primary human erythroid progenitors and cell lines, using chromatin immunoprecipitation (ChIP) assays and genetic manipulation of the levels of EKLF and co-regulators. RESULTS AND

conclusionsKnockdown of EKLF prevents SCFA-induced expression of the gamma-globin promoter in a stably expressed microLCRbeta(pr)R(luc) (A)gamma(pr)F(luc) cassette, and prevents induction of the endogenous gamma-globin gene in primary human erythroid progenitors. EKLF is actively recruited to endogenous gamma-globin gene promoters after exposure of primary human erythroid progenitors, and murine hematopoietic cell lines, to SCFA derivatives. The core ATPase BRG1 subunit of the human SWI/WNF complex, a ubiquitous multimeric complex that regulates gene expression by remodeling nucleosomal structure, is also required for gamma-globin gene induction by SCFA derivatives. BRG1 is actively recruited to the endogenous gamma-globin promoter of primary human erythroid progenitors by exposure to SCFA derivatives, and this recruitment is dependent upon the presence of EKLF. These findings demonstrate that EKLF, and the co-activator BRG1, previously demonstrated to be required for definitive or adult erythropoietic patterns of globin gene expression, are co-opted by SCFA derivatives to activate the fetal globin genes.

Indexed as

Promoter Regions, GeneticTranscriptional ActivationAnimalsCells, CulturedDNA HelicasesErythroid Precursor CellsFatty Acids, VolatileFetal Hemoglobingamma-GlobinsHumansKruppel-Like Transcription FactorsMiceNuclear ProteinsProtein TransportTranscription FactorsDNA Helicaseserythroid Kruppel-like factorFatty Acids, VolatileFetal Hemoglobingamma-GlobinsKruppel-Like Transcription FactorsNuclear ProteinsSMARCA4 protein, humanTranscription Factors

Identifiers

PMID19220418
PMCPMC3232177
OpenAlexW2013866593

What OpenQuestion holds

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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.