Evidence map›Paper›PMID 10498866›Full record

ArticleOncogene1999

Activated Raf inhibits avian myogenesis through a MAPK-dependent mechanism.

C M Dorman, S E Johnson

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

14 citing papers in PubMed, 50 citations in OpenAlex.

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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

2 authors at 1 institution in 1 country.

C M DormanDepartment of Poultry Science, the Pennsylvania State University, University Park, Pennsylvania, PA 16802, USA.
S E Johnson
Pennsylvania State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chronic overexpression of the oncogenic form of Ras is a potent inhibitor of skeletal myogenesis. However, the intracellular signaling pathways that mediate the repressive actions of Ras on myogenic differentiation have yet to be identified. We examined the role of Raf-mediated signaling as a modulator of avian myogenesis. Raf overexpression elicited pronounced effects on both myoblasts and mature myocytes. Most notably, the embryonic chick myoblasts overexpressing a constitutively active form of Raf (RCAS-Raf CAAX or RCAS-Raf BXB) fail to form the large multinucleated myofibers characteristic of myogenic cultures. While residual myofibers were apparent in the RCAS-Raf BXB and RCAS-Raf CAAX infected cultures, these fibers had an atrophic phenotype. The altered morphology is not a result of reinitiation of the myonuclei cell cycle nor is it due to apoptosis. Furthermore, the mononucleated myoblasts misexpressing Raf BXB are differentiation-defective due to overt MAPK activity. Supplementation of the culture media with the MAPK kinase (MEK) inhibitor, PD98059, caused a reversal of the phenotype and allowed the formation of multinucleated myofibers at levels comparable to controls. Our results indicate that the Raf/MEK/MAPK axis is intact in chick myoblasts and that persistent activation of this signaling cascade is inhibitory to myogenesis.

Indexed as

Mitogen-Activated Protein Kinase KinasesAnimalsApoptosisCalcium-Calmodulin-Dependent Protein KinasesCell CycleCells, CulturedChick EmbryoCytoskeletonDNA, ComplementaryDNA FragmentationEnzyme ActivationGene Expression Regulation, DevelopmentalGenetic VectorsMAP Kinase Kinase 1MusclesPhosphorylationCalcium-Calmodulin-Dependent Protein KinasesDNA, ComplementaryMAP Kinase Kinase 1Mitogen-Activated Protein Kinase KinasesProtein Serine-Threonine KinasesProtein-Tyrosine KinasesProto-Oncogene Proteins c-raf

Identifiers

PMID10498866
OpenAlexW2321320031

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.