Evidence map›Paper›PMID 19447160›Full record

ArticleExperimental hematology2009

Role of STAT3 and GATA-1 interactions in gamma-globin gene expression.

Xiao Yao, Sirisha Kodeboyina, Li Liu, James Dzandu, Jose Sangerman, Solomon F Ofori-Acquah, Betty S Pace

Open access · greenAbstract read
In one paragraph

Article in Experimental hematology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

22 citing papers in PubMed, 31 citations in OpenAlex.

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  11. Transcriptional mechanisms underlying hemoglobin synthesis.Cold Spring Harbor perspectives in medicine · 2013
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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.

Xiao YaoDepartment of Molecular and Cell Biology, University of Texas at Dallas, Richardson, Tex. 75080, USA.
Sirisha Kodeboyina
Li Liu
James Dzandu
Jose Sangerman
Solomon F Ofori-Acquah
Betty S Pace
The University of Texas at Dallas · USEmory University · USYale University · US

Funding

Mechanisms for Stat 3-Mediated Gamma-Globin Gene SilencingR01HL073447 · NHLBI · UNIVERSITY OF TEXAS DALLAS · PI PACE, BETTY SUE · 2003 to 2006
$1.3M
NHLBI NIH HHS HL073447NHLBI NIH HHS R01 HL073447
6 · The paper itself

Abstract

objectiveWe previously demonstrated a silencing role for signal transducers and activators of transcription 3 (STAT3) in gamma-globin gene regulation in primary erythroid cells. Recently, GATA-1, a key transcription factor involved in hematopoietic cell development, was shown to directly inhibit STAT3 activity in vivo. Therefore, we completed studies to determine if interactions between these two factors influence gamma-globin gene expression. MATERIALS AND

methodsChromatin immunoprecipitation assay was used to ascertain in vivo protein binding at the gamma-globin 5' untranslated region (5'UTR); protein-protein interactions were examined by coimmunoprecipitation analysis. In vitro protein-DNA binding were completed using surface plasmon resonance and electrophoretic mobility shift assay. Activity of a luciferase gamma-globin promoter reporter and levels of gamma-globin messenger RNA and fetal hemoglobin in stable K562 cell lines overexpressing STAT3 and GATA-1, were used to determine the influence of the STAT3/GATA-1 interaction on gamma-globin gene expression.

resultsWe observed interaction between STAT3 and GATA-1 in K562 and mouse erythroleukemia cells in vivo at the gamma-globin 5'UTR by chromatin immunoprecipitation assay. Electrophoretic mobility shift assay performed with a 41-base pair gamma-globin DNA probe (gamma41) demonstrated the presence of STAT3 and GATA-1 proteins in complexes assembled at the gamma-globin 5'UTR. A consensus STAT3 DNA probe inhibited GATA-1-binding in a concentration-dependent manner, and the converse was also true. Enforced STAT3 expression augmented its binding at the gamma-globin 5'UTR in vivo and silenced gamma-promoter-driven luciferase activity. Stable enforced STAT3 expression in K562 cells reduced endogenous gamma-globin messenger RNA level. This effect was reversed by GATA-1.

conclusionThese data provide evidence that GATA-1 can reverse STAT3-mediated gamma-globin gene silencing in erythroid cells.

Indexed as

Protein Binding5' Untranslated RegionsAnimalsErythroid Cellsgamma-GlobinsGATA1 Transcription FactorGene Expression RegulationGene SilencingHumansK562 CellsMiceRNA, MessengerSTAT3 Transcription Factor5' Untranslated Regionsgamma-GlobinsGATA1 protein, humanGata1 protein, mouseGATA1 Transcription FactorRNA, MessengerSTAT3 protein, humanStat3 protein, mouseSTAT3 Transcription Factor

Identifiers

PMID19447160
PMCPMC2746970
OpenAlexW2022580479

What OpenQuestion holds

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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.