Evidence map›Paper›PMID 9154841›Full record

ArticleMolecular and cellular biology1997

Tumor promotion by depleting cells of protein kinase C delta.

Z Lu, A Hornia, Y W Jiang, Q Zang, S Ohno, D A Foster

Open access · bronzeAbstract 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 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
5.3field-weighted citation impact, top 3% 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

51 citing papers in PubMed, 207 citations in OpenAlex.

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  10. Genome-Wide Analysis Uncovers Novel Recurrent Alterations in Primary Central Nervous System Lymphomas.Clinical cancer research : an official journal of the American Association for Cancer Research · 2015
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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

6 authors at 4 institutions in 2 countries.

Z LuDepartment of Biological Sciences, Hunter College of The City University of New York, New York 10021, USA.
A Hornia
Y W Jiang
Q Zang
S Ohno
D A Foster
Hunter College · USCity University of New York · USMemorial Sloan Kettering Cancer Center · USYokohama City University · JP

Funding

Role of phospholipase D in tumorigenesisR01CA046677 · NCI · HUNTER COLLEGE · PI FOSTER, DAVID A · 1997 to 2014
$3.6M
BASIS FOR TRANSFORMATION BY FUJINAMI SARCOMA VIRUSR29CA046677 · NCI · HUNTER COLLEGE · PI FOSTER, DAVID A · 1989 to 1993
–
NCI NIH HHS CA46677NCRR NIH HHS RR-03037
6 · The paper itself

Abstract

Tumor-promoting phorbol esters activate, but then deplete cells of, protein kinase C (PKC) with prolonged treatment. It is not known whether phorbol ester-induced tumor promotion is due to activation or depletion of PKC. In rat fibroblasts overexpressing the c-Src proto-oncogene, the phorbol ester 12-O-tetradecanoylphorbol-13-acetate (TPA) induced anchorage-independent growth and other transformation-related phenotypes. The appearance of transformed phenotypes induced by TPA in these cells correlated not with activation but rather with depletion of expressed PKC isoforms. Consistent with this observation, PKC inhibitors also induced transformed phenotypes in c-Src-overexpressing cells. Bryostatin 1, which inhibited the TPA-induced down-regulation of the PKCdelta isoform specifically, blocked the tumor-promoting effects of TPA, implicating PKCdelta as the target of the tumor-promoting phorbol esters. Consistent with this hypothesis, expression of a dominant negative PKCdelta mutant in cells expressing c-Src caused transformation of these cells, and rottlerin, a protein kinase inhibitor with specificity for PKCdelta, like TPA, caused transformation of c-Src-overexpressing cells. These data suggest that the tumor-promoting effect of phorbol esters is due to depletion of PKCdelta, which has an apparent tumor suppressor function.

Indexed as

Cell Transformation, NeoplasticAnimalsAntineoplastic AgentsBryostatinsCarcinogensCells, CulturedDown-RegulationFibroblastsIsoenzymesLactonesMacrolidesPhenotypeProtein Kinase CProtein Kinase C-alphaProtein Kinase C-deltaProtein Kinase C-epsilonAntineoplastic Agentsbryostatin 1BryostatinsCarcinogensIsoenzymesLactonesMacrolidesPrkcd protein, ratPrkce protein, ratProtein Kinase CProtein Kinase C-alphaProtein Kinase C-deltaProtein Kinase C-epsilonProto-Oncogene Proteins pp60(c-src)Tetradecanoylphorbol Acetate

Identifiers

PMID9154841
PMCPMC232195
OpenAlexW2106739551

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.