Evidence map›Paper›PMID 26709194›Full record

ArticleJournal of surgical oncology2016

Ki67--An unsuitable marker of gastric cancer prognosis unmasks intratumoral heterogeneity.

Christine Böger, Hans-Michael Behrens, Christoph Röcken

Abstract read
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Article in Journal of surgical oncology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

25 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  9. Can we use Ki67 expression to predict prostate cancer aggressiveness?Revista do Colegio Brasileiro de Cirurgioes · 2022
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  19. Ki-67 labeling index as a prognostic marker in advanced stomach cancer.Annals of surgical treatment and research · 2019
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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

3 authors.

Christine BögerDepartment of Pathology, Christian-Albrechts-University, Kiel, Germany.
Hans-Michael BehrensDepartment of Pathology, Christian-Albrechts-University, Kiel, Germany.
Christoph RöckenDepartment of Pathology, Christian-Albrechts-University, Kiel, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesDue to contradictious findings of previous studies regarding Ki67's value in gastric cancer (GC), we reevaluated the expression of Ki67 in whole tissue sections (WTS) and tissue microarrays (TMAs) of GC testing the following hypotheses: does Ki67 show intratumoral heterogeneity; are TMAs representative in the determination of the Ki67 proliferation index (PI); is the Ki67 PI subject to an intralaboratory variability; and is the Ki67 PI related to clinico-pathological patient characteristics and/or prognostically relevant in GC.

methodsCorresponding WTS and TMAs samples from 315 GCs were stained immunohistochemically. The Ki67 PI evaluated on WTS was correlated with the Ki67 PI evaluated on TMAs, sample age, clinico-pathological characteristics, and patient survival.

resultsThe overall amount of Ki67-positive tumor cells did not depend on sample age. Three distinct, partly heterogeneous Ki67 expression patterns were observed. The mean Ki67 PI evaluated on TMAs differed on average minus 16.9% from the Ki67 PI evaluated on WTS. Ki67 in WTS correlated significantly with the Laurén phenotype and tumor grade, but not with patient survival.

conclusionTMAs carry the risk of a systematic underestimation of the Ki67 PI. Ki67 has no prognostic value in GC but might be a potential indicator of intratumoral heterogeneity.

Indexed as

AdenocarcinomaAgedBiomarkers, TumorFemaleGene Expression Regulation, NeoplasticHumansImmunohistochemistryKi-67 AntigenLymphatic MetastasisMaleMiddle AgedNeoplasm GradingNeoplasm InvasivenessPhenotypePredictive Value of TestsPrognosisBiomarkers, TumorKi-67 Antigenprognostic biomarkerproliferationtumor heterogeneity

Identifiers

PMID26709194
PMCPMC4736456

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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.