Evidence map›Paper›PMID 9001227›Full record

ArticleMolecular and cellular biology1997

Role of diacylglycerol-regulated protein kinase C isotypes in growth factor activation of the Raf-1 protein kinase.

H Cai, U Smola, V Wixler, I Eisenmann-Tappe, M T Diaz-Meco, J Moscat, U Rapp, G M Cooper

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
11.5field-weighted citation impact, top 1% 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

78 citing papers in PubMed, 294 citations in OpenAlex.

  1. Article
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  19. Signal transduction via cannabinoid receptors.CNS & neurological disorders drug targets · 2009
    Review
  20. Article

18 more citing papers are in PubMed but not listed here.

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

8 authors at 3 institutions in 3 countries.

H CaiDivision of Molecular Genetics, Dana-Farber Cancer Institute, and Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA.
U Smola
V Wixler
I Eisenmann-Tappe
M T Diaz-Meco
J Moscat
U Rapp
G M Cooper
University of Würzburg · DEConsejo Superior de Investigaciones Científicas · ESHarvard University · US

Funding

Regulation of apoptosis by PI 3-kinase/Akt signalingR01CA018689 · NCI · DANA-FARBER CANCER INSTITUTE · PI COOPER, GEOFFREY M · 1985 to 2012
$6.2M
NCI NIH HHS R01 CA18689
6 · The paper itself

Abstract

The Raf protein kinases function downstream of Ras guanine nucleotide-binding proteins to transduce intracellular signals from growth factor receptors. Interaction with Ras recruits Raf to the plasma membrane, but the subsequent mechanism of Raf activation has not been established. Previous studies implicated hydrolysis of phosphatidylcholine (PC) in Raf activation; therefore, we investigated the role of the epsilon isotype of protein kinase C (PKC), which is stimulated by PC-derived diacylglycerol, as a Raf activator. A dominant negative mutant of PKC epsilon inhibited both proliferation of NIH 3T3 cells and activation of Raf in COS cells. Conversely, overexpression of active PKC epsilon stimulated Raf kinase activity in COS cells and overcame the inhibitory effects of dominant negative Ras in NIH 3T3 cells. PKC epsilon also stimulated Raf kinase in baculovirus-infected Spodoptera frugiperda Sf9 cells and was able to directly activate Raf in vitro. Consistent with its previously reported activity as a Raf activator in vitro, PKC alpha functioned similarly to PKC epsilon in both NIH 3T3 and COS cell assays. In addition, constitutively active mutants of both PKC alpha and PKC epsilon overcame the inhibitory effects of dominant negative mutants of the other PKC isotype, indicating that these diacylglycerol-regulated PKCs function as redundant activators of Raf-1 in vivo.

Indexed as

3T3 CellsAnimalsCell DivisionCell LineCOS CellsDiglyceridesEnzyme ActivationEpidermal Growth FactorIsoenzymesMiceMitogensMutationProtein Kinase CProtein Kinase C-alphaProtein Kinase C-epsilonProtein Serine-Threonine KinasesDiglyceridesEpidermal Growth FactorIsoenzymesMitogensPrkca protein, mousePrkce protein, mouseProtein Kinase CProtein Kinase C-alphaProtein Kinase C-epsilonProtein Serine-Threonine KinasesProto-Oncogene ProteinsProto-Oncogene Proteins c-rafRecombinant Fusion ProteinsTetradecanoylphorbol Acetate

Identifiers

PMID9001227
PMCPMC231799
OpenAlexW2122054605

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.