Evidence map›Paper›PMID 25979948›Full record

ArticleBlood2015

Inhibition of G9a methyltransferase stimulates fetal hemoglobin production by facilitating LCR/γ-globin looping.

Ivan Krivega, Colleen Byrnes, Jaira F de Vasconcellos, Y Terry Lee, Megha Kaushal, Ann Dean, Jeffery L Miller

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

51 citing papers in PubMed, 93 citations in OpenAlex.

  1. Article
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  4. Review
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  9. Article
  10. Review
  11. Review
  12. Newly developed oral bioavailable EHMT2 inhibitor as a potential epigenetic therapy for Prader-Willi syndrome.Molecular therapy : the journal of the American Society of Gene Therapy · 2024
    Article
  13. Article
  14. Article
  15. Discovery of the First-in-Class G9a/GLP PROTAC Degrader.Journal of medicinal chemistry · 2024
    Article
  16. Review
  17. Discovery of the First-in-class G9a/GLP PROTAC Degrader.bioRxiv : the preprint server for biology · 2024
    Article
  18. Frontiers in genetics · 2024
    Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Ivan KrivegaLaboratory of Cellular and Developmental Biology, and.
Colleen ByrnesMolecular Genomics and Therapeutics Section, Molecular Medicine Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD.
Jaira F de VasconcellosMolecular Genomics and Therapeutics Section, Molecular Medicine Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD.
Y Terry LeeMolecular Genomics and Therapeutics Section, Molecular Medicine Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD.
Megha KaushalMolecular Genomics and Therapeutics Section, Molecular Medicine Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD.
Ann DeanLaboratory of Cellular and Developmental Biology, and.
Jeffery L MillerMolecular Genomics and Therapeutics Section, Molecular Medicine Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD.
National Institutes of Health · USNational Institute of Diabetes and Digestive and Kidney Diseases · US

Funding

Chromatin Structure In Regulation Of Mammalian Gene ExpressionZIADK015508 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI DEAN, ANN · 2009 to 2017
$7.3M
Regulation of Fetal Hemoglobin Production in Humans.ZIADK025101 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI MILLER, JEFFERY · 2009 to 2016
$3.4M
Rationale for the Pediatric Hematology and Transfusion Medicine Multidisciplinary Research Training Award (PHTMMRT) at Children?s NationalT32HL110841 · NHLBI · CHILDREN'S RESEARCH INSTITUTE · PI Catherine M. Bollard, NAOMI L LUBAN · 2012 to 2026
$2.0M
Intramural NIH HHSNHLBI NIH HHS T32 HL110841
6 · The paper itself

Abstract

Induction of fetal hemoglobin (HbF) production in adult erythrocytes can reduce the severity of sickle cell disease and β-thalassemia. Transcription of β-globin genes is regulated by the distant locus control region (LCR), which is brought into direct gene contact by the LDB1/GATA-1/TAL1/LMO2-containing complex. Inhibition of G9a H3K9 methyltransferase by the chemical compound UNC0638 activates fetal and represses adult β-globin gene expression in adult human hematopoietic precursor cells, but the underlying mechanisms are unclear. Here we studied UNC0638 effects on β-globin gene expression using ex vivo differentiation of CD34(+) erythroid progenitor cells from peripheral blood of healthy adult donors. UNC0638 inhibition of G9a caused dosed accumulation of HbF up to 30% of total hemoglobin in differentiated cells. Elevation of HbF was associated with significant activation of fetal γ-globin and repression of adult β-globin transcription. Changes in gene expression were associated with widespread loss of H3K9me2 in the locus and gain of LDB1 complex occupancy at the γ-globin promoters as well as de novo formation of LCR/γ-globin contacts. Our findings demonstrate that G9a establishes epigenetic conditions preventing activation of γ-globin genes during differentiation of adult erythroid progenitor cells. In this view, manipulation of G9a represents a promising epigenetic approach for treatment of β-hemoglobinopathies.

Indexed as

Locus Control RegionAdultAnemia, Sickle Cellbeta-ThalassemiaCell DifferentiationDNA-Binding ProteinsEnzyme InhibitorsEpigenesis, GeneticErythroid Precursor CellsErythropoiesisFetal Hemoglobingamma-GlobinsHistocompatibility AntigensHistone-Lysine N-MethyltransferaseHumansIn Vitro TechniquesDNA-Binding ProteinsEHMT2 protein, humanEnzyme InhibitorsFetal Hemoglobingamma-GlobinsHistocompatibility AntigensHistone-Lysine N-MethyltransferaseLDB1 protein, humanLIM Domain ProteinsQuinazolinesTranscription FactorsUNC 0638

Identifiers

PMID25979948
PMCPMC4520881
OpenAlexW1740485169

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.