Evidence map›Paper›PMID 31877149›Full record

ArticlePloS one2019

Tissue ACE phenotyping in lung cancer.

Sergei M Danilov, Roman Metzger, Eckhard Klieser, Karl Sotlar, Ilya N Trakht, Joe G N Garcia

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.4field-weighted citation impact, top 9% 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

16 citing papers in PubMed, 24 citations in OpenAlex.

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  10. Epitope mapping of novel monoclonal antibodies to human angiotensin I-converting enzyme.Protein science : a publication of the Protein Society · 2021
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  15. Risk of lung cancer and renin-angiotensin blockade: a concise review.Journal of cancer research and clinical oncology · 2021
    Review
  16. The Impact ofIn vivo (Athens, Greece)
    Review
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 3 institutions in 2 countries.

Sergei M DanilovDepartment of Medicine, Division of Pulmonary, Critical Care, Sleep and Allergy, University of Illinois at Chicago, IL, United States of America.ORCID 0000-0002-6901-4545
Roman MetzgerDepartment of Pediatric and Adolescent Surgery, Paracelsus Medical University, Salzburg, Austria.
Eckhard KlieserInstitute of Pathology, Paracelsus Medical University, University Hospital Salzburg, Salzburg, Austria.
Karl SotlarInstitute of Pathology, Paracelsus Medical University, University Hospital Salzburg, Salzburg, Austria.
Ilya N TrakhtDepartment of Medicine, Columbia University, New York, NY, United States of America.
Joe G N GarciaDepartment of Medicine, University of Arizona Health Sciences, Tucson, AZ, United States of America.
Paracelsus Medical University · ATUniversity of Arizona · USColumbia University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPulmonary vascular endothelium is the main metabolic site for Angiotensin I-Converting Enzyme (ACE)-mediated degradation of several biologically-active peptides (angiotensin I, bradykinin, hemo-regulatory peptide Ac-SDKP). Primary lung cancer growth and lung cancer metastases decrease lung vascularity reflected by dramatic decreases in both lung and serum ACE activity. We performed precise ACE phenotyping in tissues from subjects with lung cancer. METHODOLOGY: ACE phenotyping included: 1) ACE immunohistochemistry with specific and well-characterized monoclonal antibodies (mAbs) to ACE; 2) ACE activity measurement with two ACE substrates (HHL, ZPHL); 3) calculation of ACE substrates hydrolysis ratio (ZPHL/HHL ratio); 4) the pattern of mAbs binding to 17 different ACE epitopes to detect changes in ACE conformation induced by tumor growth (conformational ACE fingerprint).

resultsACE immunostaining was dramatically decreased in lung cancer tissues confirmed by a 3-fold decrease in ACE activity. The conformational fingerprint of ACE from tumor lung tissues differed from normal lung (6/17 mAbs) and reflected primarily higher ACE sialylation. The increase in ZPHL/HHL ratio in lung cancer tissues was consistent with greater conformational changes of ACE. Limited analysis of the conformational ACE fingerprint in normal lung tissue and lung cancer tissue form the same patient suggested a remote effect of tumor tissue on ACE conformation and/or on "field cancerization" in a morphologically-normal lung tissues. CONCLUSIONS/SIGNIFICANCE: Local conformation of ACE is significantly altered in tumor lung tissues and may be detected by conformational fingerprinting of human ACE.

Indexed as

AgedAntibodies, MonoclonalCarcinoma, Non-Small-Cell LungEpitopesFemaleHumansImmunohistochemistryLungLung NeoplasmsMaleMiddle AgedPeptidyl-Dipeptidase APhenotypeSmall Cell Lung CarcinomaACE protein, humanAntibodies, MonoclonalEpitopesPeptidyl-Dipeptidase A

Identifiers

PMID31877149
PMCPMC6932779
OpenAlexW2998109751

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.