Evidence map›Paper›PMID 34495397›Full record

ArticleJournal of cancer research and clinical oncology2022

Epithelial-mesenchymal transition (EMT) in vulvar cancer with and without inguinal lymph node involvement.

Christine E Brambs, Lars-Christian Horn, Meinhard Mende, Michael Höckel, Christine Eckey, Gesine Grit Ruth Hiller, Anne Kathrin Höhn

Open access · hybridAbstract read
In one paragraph

Article in Journal of cancer research and clinical oncology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.5field-weighted citation impact, top 32% 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

6 citing papers in PubMed, 7 citations in OpenAlex.

  1. Review
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  6. A retrospective comparative cohort study of ultra-pulse COAnnals of translational medicine · 2023
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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

7 authors at 3 institutions in 2 countries.

Christine E Brambs *Department of Obstetrics and Gynecology, Luzerner Kantonsspital, Lucerne, Switzerland.
Lars-Christian HornInstitute of Pathology, Division of Breast Gynecologic and Perinatal Pathology, University Hospital of Leipzig, Liebigstrasse 26, 04103, Leipzig, Germany. hornl@medizin.uni-leipzig.de.ORCID http://orcid.org/0000-0002-9775-4858
Meinhard MendeClinical Trail Centre and Institute of Medical Information, Statistics and Epidemiology, University of Leipzig, Leipzig, Germany.
Michael HöckelDivision of Gynecologic Surgical Oncology, Department of Obstetrics and Gynecology (Institute of Trier), University Hospital of Leipzig, Leipzig, Germany.
Christine EckeyInstitute of Pathology, Division of Breast Gynecologic and Perinatal Pathology, University Hospital of Leipzig, Liebigstrasse 26, 04103, Leipzig, Germany.
Gesine Grit Ruth HillerInstitute of Pathology, Division of Breast Gynecologic and Perinatal Pathology, University Hospital of Leipzig, Liebigstrasse 26, 04103, Leipzig, Germany.
Anne Kathrin HöhnInstitute of Pathology, Division of Breast Gynecologic and Perinatal Pathology, University Hospital of Leipzig, Liebigstrasse 26, 04103, Leipzig, Germany.
University Hospital Leipzig · DELeipzig University · DELuzerner Kantonsspital · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeEpithelial-mesenchymal transition (EMT) is associated with increased metastatic spread and poor prognosis. Data on vulvar carcinoma are limited.

methodsThirty-two cases of squamous cell carcinoma of the vulva (16 with and 16 without inguinal lymph node metastases) and their lymph node deposits were evaluated for immunohistochemical expression of EMT markers (vimentin, cyclin D1, e-cadherin), p16, p53 and Ki-67. Results of EMT-immunostainings were compared to lymph node involvement and expression of p53 and p16. The micro-anatomical staining pattern for EMT markers comparing the tumor center with the front of invasion was analysed in each tumor.

resultsThere was no difference in the expression of EMT markers between node negative and node positive tumors. Staining for vimentin and cyclin D1 was seen within tumor cells at the front of invasion in 100 and 84.4% of the tumors, respectively. The majority of cases (68.7%) showed negative or reduced staining for e-cadherin in this micro-anatomical localization. Tumor cells within the lymph node metastases showed positive staining for e-cadherin in 75% and for cyclin D1 in 49% of the cells but were negative for vimentin in 13 out of 16 cases (81.3%). Tumors with aberrant p53 staining represented a non-significant higher vimentin but significantly higher cyclin D1 expression at the front of invasion than those with p53 wild-type pattern.

conclusionThe present study shows no differences in the expression of EMT markers between node positive and node negative vulvar cancers. The evaluation of immunostaining within the micro-anatomical context indicates that an EMT-phenotype is restricted to the tumor cells at the front of invasion. Paired analyses of vulvar carcinomas and their lymph node deposits suggest mesenchymal-epithelial transition (MET) in the metastatic deposits. Immunohistochemical staining results may suggest that EMT is more prevalent in vulvar cancer with aberrant p53 staining.

Indexed as

Vulvar NeoplasmsBiomarkers, TumorCadherinsCyclin D1Epithelial-Mesenchymal TransitionFemaleHumansLymphatic MetastasisLymph NodesTumor Suppressor Protein p53VimentinBiomarkers, TumorCadherinsCyclin D1Tumor Suppressor Protein p53VimentinCyclin D1e-cadherinEMTEpithelialFront of invasionMesenchymal-epithelial transitionMesenchymal transitionMETp16p53VimentinVulvar cancer

Identifiers

PMID34495397
PMCPMC9015993
OpenAlexW3198220798

What OpenQuestion holds

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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.