Evidence map›Paper›PMID 18780834›Full record

ArticleBlood2008

Cross-talk of GATA-1 and P-TEFb in megakaryocyte differentiation.

Kamaleldin E Elagib, Ivailo S Mihaylov, Lorrie L Delehanty, Grant C Bullock, Kevin D Ouma, Jill F Caronia, Sara L Gonias, Adam N Goldfarb

Open access · greenAbstract read
In one paragraph

Article in Blood, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

36 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
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  5. Article
  6. GATA1 in Normal and Pathologic Megakaryopoiesis and Platelet Development.Advances in experimental medicine and biology · 2024
    Review
  7. Article
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  18. Noninvasive low-level laser therapy for thrombocytopenia.Science translational medicine · 2016
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Kamaleldin E ElagibDepartment of Pathology, University of Virginia School of Medicine, Charlottesville, USA.
Ivailo S Mihaylov
Lorrie L Delehanty
Grant C Bullock
Kevin D Ouma
Jill F Caronia
Sara L Gonias
Adam N Goldfarb
University of Virginia · US

Funding

Cancer Research Training Program: From Molecular Mechanisms to Therapeutic StrategiesT32CA009109 · NCI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI Andrew Carl Dudley, Melanie R Rutkowski · 1985 to 2026
$13.9M
Involvement of RUNX1 in Megakaryocytic DifferentiationR01CA100057 · NCI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI GOLDFARB, ADAM N. · 2003 to 2007
$1.4M
Regulatory Pathways In Megakaryocyte DifferentiationR01CA093735 · NCI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI GOLDFARB, ADAM N. · 2002 to 2006
$1.3M
Involvement of RUNX1 in Megakaryocytic DifferentiationR56CA100057 · NCI · UNIVERSITY OF VIRGINIA · PI GOLDFARB, ADAM N. · 2008 to 2008
$266k
NCI NIH HHS CA100057NCI NIH HHS CA93735NCI NIH HHS R01 CA093735NCI NIH HHS R01 CA100057NCI NIH HHS R56 CA100057NCI NIH HHS T32 CA009109NHLBI NIH HHS F32 HL0860046
6 · The paper itself

Abstract

The transcription factor GATA-1 participates in programming the differentiation of multiple hematopoietic lineages. In megakaryopoiesis, loss of GATA-1 function produces complex developmental abnormalities and underlies the pathogenesis of megakaryocytic leukemia in Down syndrome. Its distinct functions in megakaryocyte and erythroid maturation remain incompletely understood. In this study, we identified functional and physical interaction of GATA-1 with components of the positive transcriptional elongation factor P-TEFb, a complex containing cyclin T1 and the cyclin-dependent kinase 9 (Cdk9). Megakaryocytic induction was associated with dynamic changes in endogenous P-TEFb composition, including recruitment of GATA-1 and dissociation of HEXIM1, a Cdk9 inhibitor. shRNA knockdowns and pharmacologic inhibition both confirmed contribution of Cdk9 activity to megakaryocytic differentiation. In mice with megakaryocytic GATA-1 deficiency, Cdk9 inhibition produced a fulminant but reversible megakaryoblastic disorder reminiscent of the transient myeloproliferative disorder of Down syndrome. P-TEFb has previously been implicated in promoting elongation of paused RNA polymerase II and in programming hypertrophic differentiation of cardiomyocytes. Our results offer evidence for P-TEFb cross-talk with GATA-1 in megakaryocytic differentiation, a program with parallels to cardiomyocyte hypertrophy.

Indexed as

Cell DifferentiationReceptor Cross-TalkAnimalsCells, CulturedCyclin-Dependent Kinase 9Down SyndromeGATA1 Transcription FactorHumansMegakaryocytesMiceMice, KnockoutMyeloproliferative DisordersPositive Transcriptional Elongation Factor BCyclin-Dependent Kinase 9GATA1 protein, humanGata1 protein, mouseGATA1 Transcription FactorPositive Transcriptional Elongation Factor B

Identifiers

PMID18780834
PMCPMC2597596
OpenAlexW2081756215

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.