Evidence map›Paper›PMID 17317855›Full record

ArticleBlood2007

Cyclin D-Cdk4 is regulated by GATA-1 and required for megakaryocyte growth and polyploidization.

Andrew G Muntean, Liyan Pang, Mortimer Poncz, Steven F Dowdy, Gerd A Blobel, John D Crispino

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

55 citing papers in PubMed, 96 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Dachshund Homolog 1: Unveiling Its Potential Role in Megakaryopoiesis andInternational journal of molecular sciences · 2024
    Article
  8. Article
  9. Review
  10. Review
  11. Pharmaceuticals (Basel, Switzerland) · 2022
    Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
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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

6 authors at 4 institutions in 1 country.

Andrew G MunteanGraduate Program in Molecular Genetics and Cell Biology, University of Chicago, IL, USA.
Liyan Pang
Mortimer Poncz
Steven F Dowdy
Gerd A Blobel
John D Crispino
Children's Hospital of Philadelphia · USHoward Hughes Medical Institute · USNorthwestern University · USUniversity of Chicago · US

Funding

Mechanisms of Leukemogenesis in Down SyndromeR01CA101774 · NCI · UNIVERSITY OF CHICAGO · PI CRISPINO, JOHN D · 2003 to 2021
$6.1M
EPS: A Novel Hematopoietic Transcription FactorR01DK061464 · NIDDK · UNIVERSITY OF CHICAGO · PI CRISPINO, JOHN D · 2002 to 2006
$1.6M
NCI NIH HHS R01 CA101774NIDDK NIH HHS DK61464NIDDK NIH HHS R01 DK061464
6 · The paper itself

Abstract

Endomitosis is a unique form of cell cycle used by megakaryocytes, in which the latter stages of mitosis are bypassed so that the cell can increase its DNA content and size. Although several transcription factors, including GATA-1 and RUNX-1, have been implicated in this process, the link between transcription factors and polyploidization remains undefined. Here we show that GATA-1-deficient megakaryocytes, which display reduced size and polyploidization, express nearly 10-fold less cyclin D1 and 10-fold increased levels of p16 compared with their wild-type counterparts. We further demonstrate that cyclin D1 is a direct GATA-1 target in megakaryocytes, but not erythroid cells. Restoration of cyclin D1 expression, when accompanied by ectopic overexpression of its partner Cdk4, resulted in a dramatic increase in megakaryocyte size and DNA content. However, terminal differentiation was not rescued. Of note, polyploidization was only modestly reduced in cyclin D1-deficient mice, likely due to compensation by elevated cyclin D3 expression. Finally, consistent with an additional defect conferred by increased levels of p16, inhibition of cyclin D-Cdk4 complexes with a TAT-p16 fusion peptide significantly blocked polyploidization of wild-type megakaryocytes. Together, these data show that GATA-1 controls growth and polyploidization by regulating cyclin D-Cdk4 kinase activity.

Indexed as

Cell ProliferationPolyploidyAnimalsCyclin DCyclin-Dependent Kinase 4CyclinsGATA1 Transcription FactorGene Expression RegulationMegakaryocytesMiceMice, Inbred StrainsMultiprotein ComplexesCdk4 protein, mouseCyclin DCyclin-Dependent Kinase 4CyclinsGata1 protein, mouseGATA1 Transcription FactorMultiprotein Complexes

Identifiers

PMID17317855
PMCPMC1890844
OpenAlexW2060742288

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.