Evidence map›Paper›PMID 22535408›Full record

ArticleDevelopment (Cambridge, England)2012

Nf1 limits epicardial derivative expansion by regulating epithelial to mesenchymal transition and proliferation.

Seung Tae Baek, Michelle D Tallquist

Open access · bronzeAbstract read
In one paragraph

Article in Development (Cambridge, England), 2012. 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
1.3field-weighted citation impact, top 21% 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, 42 citations in OpenAlex.

  1. Article
  2. Epicardium-myocardium crosstalk orchestrates heart development.Frontiers in cell and developmental biology · 2025
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Developmental Pathways of Cardiac Fibroblasts.Cold Spring Harbor perspectives in biology · 2020
    Review
  9. Review
  10. Review
  11. Review
  12. Defining the Cardiac Fibroblast.Circulation journal : official journal of the Japanese Circulation Society · 2016
    Review
  13. Genetic tools for identifying and manipulating fibroblasts in the mouse.Differentiation; research in biological diversity · 2016
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Snai1 is important for avian epicardial cell transformation and motility.Developmental dynamics : an official publication of the American Association of Anatomists · 2013
    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

2 authors at 1 institution in 1 country.

Seung Tae BaekDepartment of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA.
Michelle D Tallquist
The University of Texas Southwestern Medical Center · US

Funding

Microenvironmental control of progenitors in organ dysfunction and repairU01HL100401 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI OLSON, ERIC N, SCHNEIDER, JAY W · 2009 to 2015
$8.3M
PDGF Receptor Signaling in Mammalian DevelopmentR01HL074257 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI TALLQUIST, MICHELLE D · 2003 to 2014
$3.7M
NHLBI NIH HHS HL074257NHLBI NIH HHS HL100401NHLBI NIH HHS R01 HL074257NHLBI NIH HHS U01 HL100401
6 · The paper itself

Abstract

The epicardium is the primary source of coronary vascular smooth muscle cells (cVSMCs) and fibroblasts that reside in the compact myocardium. To form these epicardial-derived cells (EPDCs), the epicardium undergoes the process of epithelial to mesenchymal transition (EMT). Although several signaling pathways have been identified that disrupt EMT, no pathway has been reported that restricts this developmental process. Here, we identify neurofibromin 1 (Nf1) as a key mediator of epicardial EMT. To determine the function of Nf1 during epicardial EMT and the formation of epicardial derivatives, cardiac fibroblasts and cVSMCs, we generated mice with a tissue-specific deletion of Nf1 in the epicardium. We found that mutant epicardial cells transitioned more readily to mesenchymal cells in vitro and in vivo. The mesothelial epicardium lost epithelial gene expression and became more invasive. Using lineage tracing of EPDCs, we found that the process of EMT occurred earlier in Nf1 mutant hearts, with an increase in epicardial cells entering the compact myocardium. Moreover, loss of Nf1 caused increased EPDC proliferation and resulted in more cardiac fibroblasts and cVSMCs. Finally, we were able to partially reverse the excessive EMT caused by loss of Nf1 by disrupting Pdgfrα expression in the epicardium. Conversely, Nf1 activation was able to inhibit PDGF-induced epicardial EMT. Our results demonstrate a regulatory role for Nf1 during epicardial EMT and provide insights into the susceptibility of patients with disrupted NF1 signaling to cardiovascular disease.

Indexed as

Cell ProliferationAnimalsCell LineageEpithelial-Mesenchymal TransitionMiceMicroscopy, FluorescenceNeurofibromin 1PericardiumReceptor, Platelet-Derived Growth Factor alphaSignal TransductionNeurofibromin 1Receptor, Platelet-Derived Growth Factor alpha

Identifiers

PMID22535408
PMCPMC3347692
OpenAlexW1996415401

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.