Evidence map›Paper›PMID 32930875›Full record

ArticleArchives of gynecology and obstetrics2021

Zinc distribution within breast cancer tissue of different intrinsic subtypes.

Peter Rusch, Alfred V Hirner, Oliver Schmitz, Rainer Kimmig, Oliver Hoffmann, Maxim Diel

Open access · hybridAbstract read
In one paragraph

Article in Archives of gynecology and obstetrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

21 citing papers in PubMed, 44 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

6 authors at 1 institution in 1 country.

Peter RuschDepartment of Gynecology and Obstetrics, School of Medicine, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany. Peter.Rusch@uk-essen.de.ORCID 0000-0002-4890-3503
Alfred V HirnerApplied Analytical Chemistry, Department of Chemistry, University of Duisburg-Essen, Universitätsstraße 5-7, 45141, Essen, Germany.
Oliver SchmitzApplied Analytical Chemistry, Department of Chemistry, University of Duisburg-Essen, Universitätsstraße 5-7, 45141, Essen, Germany.
Rainer KimmigDepartment of Gynecology and Obstetrics, School of Medicine, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany.
Oliver HoffmannDepartment of Gynecology and Obstetrics, School of Medicine, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany.
Maxim DielApplied Analytical Chemistry, Department of Chemistry, University of Duisburg-Essen, Universitätsstraße 5-7, 45141, Essen, Germany.
University of Duisburg-Essen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo show feasibility of laser ablation inductively coupled mass spectrometry (LA-ICPMS) for analysis of zinc content and concentration in breast cancer tissue and to correlate this with validated prognostic and predictive markers, i.e. histological grading and expression of steroid receptors (estrogen receptor, ER; progesterone receptor, PR) and human epidermal growth-factor receptor 2 (Her2).

methods28 samples of human invasive ductal breast cancer tissue were subclassified into groups of four different intrinsic subtypes according to the expression of ER, PR and Her2 by immunohistological staining and then analyzed for zinc content and distribution by LA-ICPMS applying a calibration technique based on spiked polyacrylamide gels. A correlation of zinc concentration with histological grading and molecular subtypes was analyzed.

resultsConsistent with results of a pilot-study LA-ICPMS was feasible to show zinc accumulation in cancerous tissue, even more adjacent healthy stroma was with proportional increase of zinc. Zinc levels were most elevated in triple-positive (TPBC) and in triple-negative (TNB) breast cancers.

conclusionLA-ICPMS was feasible to confirm a connection between zinc and grade of malignancy; furthermore, focusing on a correlation of zinc and intrinsic breast cancer subtypes, LA-ICPMS depicted an upwards trend of zinc for "high-risk-cancers" with highest levels in Her2-positive and in triple-negative (TNBC) disease. The currently uncommon alliance of clinicians and analytical chemists in basic research is most promising to exploit the full potential of diagnostic accuracy in the efforts to solve the enigma of breast cancer initiation and course of disease.

Indexed as

AdultAgedBiomarkers, TumorBreast NeoplasmsErb-b2 Receptor Tyrosine KinasesFeasibility StudiesFemaleGermanyHumansLaser TherapyMass SpectrometryMiddle AgedPilot ProjectsReceptors, EstrogenReceptors, ProgesteroneZincBiomarkers, TumorERBB2 protein, humanErb-b2 Receptor Tyrosine Kinasesprogesterone receptor BReceptors, EstrogenReceptors, ProgesteroneZincBiomarkerBreast cancerHuman epidermal growth factor receptor 2Laser ablation inductively coupled mass spectrometry (LA-ICPMS)Steroid receptorZinc

Identifiers

PMID32930875
PMCPMC7854450
OpenAlexW3085136979

What OpenQuestion holds

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LicenceCC BY
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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.