Evidence map›Paper›PMID 10510327›Full record

ArticleThe Journal of clinical investigation1999

Overexpressed cyclin D3 contributes to retaining the growth inhibitor p27 in the cytoplasm of thyroid tumor cells.

G Baldassarre, B Belletti, P Bruni, A Boccia, F Trapasso, F Pentimalli, M V Barone, G Chiappetta, M T Vento, S Spiezia and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

47 citing papers in PubMed, 121 citations in OpenAlex.

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  7. MicroRNAs in the thyroid.Best practice & research. Clinical endocrinology & metabolism · 2016
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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

12 authors at 3 institutions in 1 country.

G BaldassarreIstituto Nazionale dei Tumori "Fondazione Senatore Pascale," 80131 Naples, Italy.
B Belletti
P Bruni
A Boccia
F Trapasso
F Pentimalli
M V Barone
G Chiappetta
M T Vento
S Spiezia
A Fusco
G Viglietto
Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale" · ITOspedale Cannizzaro · ITUniversity of Reggio Calabria · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The majority of thyroid carcinomas maintain the expression of the cell growth suppressor p27, an inhibitor of cyclin-dependent kinase-2 (Cdk2). However, we find that 80% of p27-expressing tumors show an uncommon cytoplasmic localization of p27 protein, associated with high Cdk2 activity. To reproduce such a situation, a mutant p27 devoid of its COOH-terminal nuclear-localization signal was generated (p27-NLS). p27-NLS accumulates in the cytoplasm and fails to induce growth arrest in 2 different cell lines, indicating that cytoplasm-residing p27 is inactive as a growth inhibitor, presumably because it does not interact with nuclear Cdk2. Overexpression of cyclin D3 may account in part for p27 cytoplasmic localization. In thyroid tumors and cell lines, cyclin D3 expression was associated with cytoplasmic localization of p27. Moreover, expression of cyclin D3 in thyroid carcinoma cells induced cytoplasmic retention of cotransfected p27 and rescued p27-imposed growth arrest. Endogenous p27 also localized prevalently to the cytoplasm in normal thyrocytes engineered to stably overexpress cyclin D3 (PC-D3 cells). In these cells, cyclin D3 induced the formation of cytoplasmic p27-cyclin D3-Cdk complexes, which titrated p27 away from intranuclear complexes that contain cyclins A-E and Cdk2. Our results demonstrate a novel mechanism that may contribute to overcoming the p27 inhibitory threshold in transformed thyroid cells.

Indexed as

CDC2-CDC28 KinasesCell Cycle ProteinsTumor Suppressor ProteinsCell NucleusCyclin D3Cyclin-Dependent Kinase 2Cyclin-Dependent Kinase Inhibitor p27Cyclin-Dependent KinasesCyclinsCytoplasmGenes, Tumor SuppressorHumansMicrotubule-Associated ProteinsProtein Serine-Threonine KinasesSignal TransductionSubstrate SpecificityCCND3 protein, humanCDC2-CDC28 KinasesCDK2 protein, humanCell Cycle ProteinsCyclin D3Cyclin-Dependent Kinase 2Cyclin-Dependent Kinase Inhibitor p27Cyclin-Dependent KinasesCyclinsMicrotubule-Associated ProteinsProtein Serine-Threonine KinasesTumor Suppressor Proteins

Identifiers

PMID10510327
PMCPMC408550
OpenAlexW2106133772

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.