Evidence map›Paper›PMID 11526503›Full record

ArticleOncogene2001

Involvement of protein kinase Cdelta in contact-dependent inhibition of growth in human and murine fibroblasts.

I Heit, R J Wieser, T Herget, D Faust, M Borchert-Stuhlträger, F Oesch, C Dietrich

Abstract read
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In one paragraph

Article in Oncogene, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed, 35 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

7 authors at 1 institution in 1 country.

I HeitInstitute of Toxicology, Johannes Gutenberg-University of Mainz, 55131 Mainz, Germany.
R J Wieser
T Herget
D Faust
M Borchert-Stuhlträger
F Oesch
C Dietrich
Johannes Gutenberg University Mainz · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There is evidence that protein kinase C delta (PKCdelta) is a tumor suppressor, although its physiological role has not been elucidated so far. Since important anti-proliferative signals are mediated by cell-cell contacts we studied whether PKCdelta is involved in contact-dependent inhibition of growth in human (FH109) and murine (NIH3T3) fibroblasts. Cell-cell contacts were imitated by the addition of glutardialdehyde-fixed cells to sparsely seeded fibroblasts. Downregulation of the PKC isoforms alpha, delta, epsilon, and mu after prolonged treatment with 12-O-tetradecanoylphorbol-13-acetate (TPA, 0.1 microM) resulted in a significant release from contact-inhibition in FH109 cells. Bryostatin 1 selectively prevented TPA-induced PKCdelta-downregulation and reversed TPA-induced release from contact-inhibition arguing for a role of PKCdelta in contact-inhibition. In accordance, the PKCdelta specific inhibitor Rottlerin (1 microM) totally abolished contact-inhibition. Interestingly, immunofluorescence revealed a rapid translocation of PKCdelta to the nucleus when cultures reached confluence with a peak in early-mid G1 phase. Nuclear translocation of PKCdelta in response to cell-cell contacts could also be demonstrated after subcellular fractionation by Western blotting and by measuring PKCdelta-activity after immunoprecipitation. Transient transfection of NIH3T3 cells with a dominant negative mutant of PKCdelta induced a transformed phenotype. We conclude that PKCdelta is involved in contact-dependent inhibition of growth.

Indexed as

3T3 CellsAcetophenonesActive Transport, Cell NucleusAnimalsBenzopyransBryostatinsCell CycleCell DivisionChemotaxisDown-RegulationEnzyme InhibitorsFibroblastsFixativesGlutaralHumansIsoenzymesAcetophenonesBenzopyransbryostatin 1BryostatinsEnzyme InhibitorsFixativesGlutaralIsoenzymesLactonesMacrolidesMitogensPRKCD protein, humanPrkcd protein, mouseProtein IsoformsProtein Kinase CProtein Kinase C-deltarottlerinTetradecanoylphorbol Acetate

Identifiers

PMID11526503
OpenAlexW2334377293

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.