Evidence map›Paper›PMID 22964636›Full record

ArticleOncogene2013

BMP-specific SMADs function as novel repressors of PDGFA and modulate its expression in ovarian granulosa cells and tumors.

S K Tripurani, R W Cook, K W Eldin, S A Pangas

Abstract read
In one paragraph

Article in Oncogene, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

23 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
  2. Journal of veterinary science · 2024
    Article
  3. Review
  4. Article
  5. Adult-type granulosa cell tumor of the ovary.American journal of cancer research · 2022
    Review
  6. The role of microenvironment in tumor angiogenesis.Journal of experimental & clinical cancer research : CR · 2020
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Negative regulation of Smad1 pathway and collagen IV expression by store-operated CaAmerican journal of physiology. Renal physiology · 2017
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

4 authors at 1 institution in 1 country.

S K TripuraniDepartment of Pathology and Immunology, Baylor College of Medicine, Houston, TX, USA.
R W Cook
K W Eldin
S A Pangas
Baylor College of Medicine · US

Funding

Role of the BMP SMADs in OncogenesisR01CA138628 · NCI · BAYLOR COLLEGE OF MEDICINE · PI PANGAS, STEPHANIE A. · 2010 to 2014
$1.5M
NCI NIH HHS CA138628NCI NIH HHS R01 CA138628
6 · The paper itself

Abstract

Platelet-derived growth factor alpha (PDGFA) is frequently upregulated in various cancers and thought to function as a key player in the development and progression of tumor growth by regulating aspects of cell proliferation, angiogenesis and metastasis. However, the mechanism by which it is upregulated is not fully understood. Previously, we demonstrated that conditional deletion of two transcription factors that signal for the bone morphogenetic proteins (Smad1 and Smad5) in ovarian granulosa cells causes metastatic granulosa cell tumors (GCTs) in female mice and phenocopies human juvenile GCTs (JGCTs). Smad1/5 double conditional knockout tumors, as well as human JGCTs, are highly vascularized, hemorrhagic and mitotically active. Expression analysis of these tumors and their metastases revealed a significant upregulation of key proliferation and pro-angiogenic factors such as Pdgfa, Pdgfb and Vegf. We examined whether these genes were direct targets of SMAD1 and SMAD5. Knockdown of SMAD1 and SMAD5 in mouse primary granulosa cells and a human GCT-derived cell line (COV434) resulted in upregulation of PDGFA, but not PDGFB nor VEGF. We identified several putative SMAD1/5-binding sites in the PDGFA promoter, and chromatin immunoprecipitation and reporter assays demonstrated that SMAD1/5 interact with the PDGFA promoter to regulate its activity. Further, SMAD1/5 antagonize the activity of the transcription factor Sp1, a well-known positive regulator of PDGFA, by inhibiting its occupancy at a key regulatory site on the proximal PDGFA promoter. Collectively, our studies establish that loss of SMAD1/5 leads to upregulation of PDGFA in ovarian granulosa cells, and that a novel regulatory interaction exists between the BR-SMADs and Sp1 in controlling PDGFA expression during granulosa cell tumorigenesis.

Indexed as

AnimalsBlotting, WesternBone Morphogenetic ProteinsChromatin ImmunoprecipitationFemaleGene Expression Regulation, NeoplasticGranulosa CellsGranulosa Cell TumorHumansMiceOvarian NeoplasmsPlatelet-Derived Growth FactorReverse Transcriptase Polymerase Chain ReactionRNA, Small InterferingSignal TransductionSmad ProteinsBone Morphogenetic ProteinsPlatelet-Derived Growth Factorplatelet-derived growth factor ARNA, Small InterferingSmad Proteins

Identifiers

PMID22964636
PMCPMC3525720
OpenAlexW2089893679

What OpenQuestion holds

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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.