Evidence map›Paper›PMID 28255813›Full record

ArticleVirchows Archiv : an international journal of pathology2017

Gene promoter-associated CpG island hypermethylation in squamous cell carcinoma of the tongue.

Samatha Bhat, Shama Prasada Kabekkodu, Chinchu Jayaprakash, Raghu Radhakrishnan, Satadru Ray, Kapaettu Satyamoorthy

Abstract read
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In one paragraph

Article in Virchows Archiv : an international journal of pathology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
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

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 62 citations in OpenAlex.

  1. Pooled it
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  6. Clinical significance of expression level of ZNF471 in gastric cancer.International journal of clinical and experimental pathology · 2023
    Article
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  8. Salivary DNA methylation markers for cancer of oral cavity.Cancer biomarkers : section A of Disease markers · 2022
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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.

Samatha BhatDepartment of Cell and Molecular Biology, School of Life Sciences, Manipal University, Manipal, Karnataka, 576104, India.
Shama Prasada KabekkoduDepartment of Cell and Molecular Biology, School of Life Sciences, Manipal University, Manipal, Karnataka, 576104, India.
Chinchu JayaprakashDepartment of Cell and Molecular Biology, School of Life Sciences, Manipal University, Manipal, Karnataka, 576104, India.
Raghu RadhakrishnanDepartment of Oral Pathology, Manipal College of Dental Sciences, Manipal University, Manipal, 576104, India.
Satadru RayDepartment of Surgical Oncology, Kasturba Medical College, Manipal University, Manipal, 576104, India.
Kapaettu SatyamoorthyDepartment of Cell and Molecular Biology, School of Life Sciences, Manipal University, Manipal, Karnataka, 576104, India. ksatyamoorthy@manipal.edu.
Manipal Academy of Higher Education · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The present study was undertaken to explore and validate novel hypermethylated DNA regions in squamous cell carcinoma of the tongue (SCCT). Genome-wide methylation changes were identified by differential methylation hybridization (DMH) microarray and validated by bisulfite genome sequencing (BGS). The results were compared against datasets from The Cancer Genome Atlas head and neck squamous cell carcinoma (TCGA-HNSCC), Gene Expression Omnibus (GSE26549), and ArrayExpress (E-MTAB-1328). DMH identified 116 hypomethylated and 241 hypermethylated regions. Of the latter, 24 were localized to promoter or 5'-UTR regions. By BGS, promoter sequences of DAPK1, LRPPRC, RAB6C, and ZNF471 were significantly hypermethylated in tumors when compared with matched normal tissues (P < 0.0001). A TCGA-HNSCC dataset (516 cases of cancer and 50 normal tissue samples) further confirmed hypermethylation of DAPK1, RAB6C, and ZNF471. Sensitivity and specificity of methylation markers for a diagnosis of cancer were in the range of 70-100% in our study and from TCGA-HNSCC datasets, with an area under curve (AUC) of 0.83 and above. Kaplan-Meier survival analysis of TCGA-HNSCC expression data revealed that patients with low expressions of DAPK1, RAB6C, and ZNF471 showed poorer survival than patients with high expression (P = 0.02). Human papillomavirus (HPV) was found in 55% of cases, HPV16 being the predominant genotype. DAPK1 immunohistochemical staining was lower in SCCT than in normal buccal epithelial cells. This is the first study to report hypermethylation of LRPPRC, RAB6C, and ZNF471 in SCCT and its diagnostic and prognostic potentials in a specific head and neck squamous cell carcinoma.

Indexed as

Area Under CurveCarcinoma, Squamous CellCluster AnalysisCpG IslandsDNA MethylationHead and Neck NeoplasmsHumansImmunohistochemistryNeoplasm ProteinsOligonucleotide Array Sequence AnalysisPolymerase Chain ReactionPrincipal Component AnalysisPrognosisPromoter Regions, Geneticrab GTP-Binding ProteinsROC CurveLRPPRC protein, humanNeoplasm ProteinsRAB6C protein, humanrab GTP-Binding ProteinsBisulfite genomic sequencingDAPK1DNA methylationHPVLRPPRCOral cancerRAB6CZNF471

Identifiers

PMID28255813
OpenAlexW2592430310

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Registered trials

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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.