Evidence map›Paper›PMID 32642290›Full record

ArticleAmerican journal of cancer research2020

High levels of KLK7 protein expression are related to a favorable prognosis in triple-negative breast cancer patients.

Xiaocong Geng, Lamiya Babayeva, Axel Walch, Michaela Aubele, Eva Groß, Marion Kiechle, Holger Bronger, Tobias Dreyer, Viktor Magdolen, Julia Dorn

Open access · greenAbstract read
In one paragraph

Article in American journal of cancer research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

3 citing papers in PubMed, 9 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

10 authors at 3 institutions in 1 country.

Xiaocong GengClinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM) Germany.
Lamiya BabayevaClinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM) Germany.
Axel WalchResearch Unit Analytical Pathology, Helmholtz Zentrum München Neuherberg, Germany.
Michaela AubeleInstitute of Pathology, Helmholtz Zentrum München Neuherberg, Germany.
Eva GroßDepartment of Obstetrics and Gynecology, University of Munich (LMU) Germany.
Marion KiechleClinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM) Germany.
Holger BrongerClinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM) Germany.
Tobias DreyerClinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM) Germany.
Viktor MagdolenClinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM) Germany.
Julia DornClinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM) Germany.
Technical University of Munich · DEHelmholtz Zentrum München · DELMU Klinikum · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In normal physiology, kallikrein-related peptidase 7 (KLK7), together with other members of the kallikrein-related peptidase family, is mainly involved in skin desquamation and keratinization processes. Moreover, expression of KLK7 was shown in various tumor types to be dysregulated and to correlate to patients' survival time. However, there are contradictory reports in breast cancer whether KLK7 represents an unfavorable or favorable prognostic biomarker. In the present study, we examined the prognostic value of KLK7 protein expression in triple-negative breast cancer (TNBC), determined by immunohistochemistry (IHC). A cohort encompassing 133 TNBC specimens, present on tissue microarrays, was analyzed. For quantification of the staining intensity, an automated digital IHC image analysis algorithm was applied. In both Kaplan-Meier and univariate Cox analyses, elevated KLK7 protein levels were significantly linked with prolonged overall survival (OS). In multivariable Cox analysis, addition of KLK7 immunoreactivity scores to the base model (including the clinical parameters age, tumor size, and nodal status) demonstrated that KLK7 protein expression remained as a statistically significant, independent parameter for prolonged OS. These results strongly indicate that KLK7 is a favorable prognostic biomarker in triple-negative breast cancer.

Indexed as

clinical relevancekallikrein-related peptidaseKLK7prognostic markerTriple-negative breast cancer

Identifiers

PMID32642290
PMCPMC7339269
OpenAlexW3040867851

What OpenQuestion holds

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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.