Evidence map›Paper›PMID 31115553›Full record

ArticleMolecular medicine reports2019

Identification of claudin‑1, ‑3, ‑7 and ‑8 as prognostic markers in human laryngeal carcinoma.

Shu Zhou, Xue Piao, Chengyan Wang, Rui Wang, Zhimin Song

Open access · hybridAbstract read
In one paragraph

Article in Molecular medicine reports, 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
1.8field-weighted citation impact, top 15% 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, 22 citations in OpenAlex.

  1. Review
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  4. Article
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  6. Claudins as biomarkers of differential diagnosis and prognosis of tumors.Journal of cancer research and clinical oncology · 2021
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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

5 authors at 2 institutions in 1 country.

Shu ZhouDepartment of Anesthesiology, Jilin Cancer Hospital, Changchun, Jilin 130021, P.R. China.
Xue PiaoDepartment of Anesthesiology, Maternity Hospital of Changchun City, Changchun, Jilin 130021, P.R. China.
Chengyan WangDepartment of Ultrasound, Jilin Cancer Hospital, Changchun, Jilin 130021, P.R. China.
Rui WangDepartment of Ultrasound, Jilin Cancer Hospital, Changchun, Jilin 130021, P.R. China.
Zhimin SongDepartment of Anesthesiology, The Second Hospital of Jilin University, Changchun, Jilin 130021, P.R. China.
Jilin Province Tumor Hospital · CNSecond Affiliated Hospital of Jilin University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Various genomic and epigenetic modifications that occur during the development of cancer act as potential biomarkers for early diagnosis and treatment. Previous studies have demonstrated abnormal expression of the claudin (CLDN) tight junction (TJ) proteins in numerous types of human cancer. Reverse transcription‑quantitative polymerase chain reaction and western blotting were employed to investigate variations in the expression of the CLDN TJ proteins in laryngeal non‑neoplastic tissues and laryngeal squamous carcinoma tissues. It was revealed that CLDN2, CLDN4, CLDN5, CLDN6, CLDN9, CLDN11 and CLDN12 were undetectable in laryngeal squamous carcinoma tissues and laryngeal non‑neoplastic tissues. Additionally, CLDN10 was expressed in laryngeal squamous carcinoma tissues and laryngeal non‑neoplastic tissues; however, no significant difference was reported. Conversely, the expression levels of CLDN1 and CLDN7 mRNA and protein were downregulated in laryngeal squamous carcinoma tissues compared with in adjacent non‑neoplastic tissues, whereas those of CLDN3 and CLDN8 were upregulated. A total of 80 samples of laryngeal squamous carcinoma and non‑neoplastic tissues were analyzed for the expression of CLDN1, ‑3, ‑7 and ‑8 via streptavidin‑peroxidase immunohistochemical staining. It was revealed that the expression levels of CLDN1 and CLDN7 were downregulated in laryngeal squamous carcinoma tissues compared with in non‑neoplastic mucosal tissues, whereas those of CLDN3 and CLDN8 were upregulated. Furthermore, the associations between CLDN expression and the clinicopathological factors of patients were analyzed. The expression levels of CLDN3 and CLDN7 were reported to be associated with distant metastasis and serve as potential predictors of poor prognosis. In conclusion, the findings of the present study demonstrated that the expression levels of CLDN1, ‑3, ‑7 and ‑8 varied between laryngeal squamous carcinoma tissues and non‑neoplastic tissues. The expression levels of these CLDNs may be useful molecular markers for the diagnosis of laryngeal carcinoma, and determining the metastasis and prognosis of this disease.

Indexed as

AgedBiomarkers, TumorCarcinomaClaudin-1Claudin-3ClaudinsFemaleGene Expression Regulation, NeoplasticHumansLaryngeal NeoplasmsMaleMiddle AgedPrognosisRNA, MessengerTight Junction ProteinsBiomarkers, TumorClaudin-1Claudin-3claudin 8ClaudinsCLDN1 protein, humanCLDN7 protein, humanRNA, MessengerTight Junction Proteins

Identifiers

PMID31115553
PMCPMC6580001
OpenAlexW2946026961

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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.