Evidence map›Paper›PMID 16328436›Full record

ArticleJournal of cancer research and clinical oncology2006

Cyclin-dependent kinase inhibitors CIP1 (p21) and KIP1 (p27) in ovarian cancer.

Annette Schmider-Ross, Olaf Pirsig, Elisabeth Gottschalk, Carsten Denkert, Werner Lichtenegger, Angela Reles

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In one paragraph

Article in Journal of cancer research and clinical oncology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 34% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. p27Histology and histopathology · 2025
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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 1 institution in 1 country.

Annette Schmider-RossDepartment of Obstetrics and Gynecology, Charité, Campus Virchow--Klinikum, Humboldt University, Augustenburger Platz 1, 13353 Berlin, Germany. annette.schmider@charite.de
Olaf Pirsig
Elisabeth Gottschalk
Carsten Denkert
Werner Lichtenegger
Angela Reles
Humboldt-Universität zu Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeDeregulation of the cell cycle is one of the important prerequisites for cancer development. p21 and p27 are both universal inhibitors of cyclin-dependent kinases and can therefore influence cell cycle or tumor progression. The aim of this study was to determine the influence of p21 and p27 expression on survival and chemotherapy response.

methods165 patients with ovarian cancer have been examined for p21 and p27 expression by immunohistochemistry on formalin-fixed, paraffin-embedded tissue using the monoclonal primary antibody WAF1 (Oncogene Science) and KIP1 (Transduction Laboratories).

resultsHigh p21 expression (>50%) correlates only with early tumor stage (P=0.04). There was no correlation found between p21 and p27 expression. Patients with high p27 expression (>25%) had a longer DFS (disease free survival) in both univariate and multivariate analysis (P=0.05 and P=0.043) than patients with low p27 expression. A longer overall survival (OS) could only be proven for the group of high p27 expression in univariate analysis (P=0.03).

conclusionp27 is an independent prognostic factor for ovarian cancer for DFS though this was not true for OS.

Indexed as

AgedBiomarkers, TumorCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27FemaleHumansImmunohistochemistryIntracellular Signaling Peptides and ProteinsMiddle AgedOvarian NeoplasmsPrognosisSurvival AnalysisBiomarkers, TumorCDKN1A protein, humanCDKN1B protein, humanCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27Intracellular Signaling Peptides and Proteins

Identifiers

PMID16328436
PMCPMC12161056
OpenAlexW1965370595

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.