Evidence map›Paper›PMID 22558401›Full record

ArticlePloS one2012

Human papillomavirus (HPV) 16 E6 variants in tonsillar cancer in comparison to those in cervical cancer in Stockholm, Sweden.

Juan Du, Cecilia Nordfors, Anders Näsman, Michal Sobkowiak, Mircea Romanitan, Tina Dalianis, Torbjörn Ramqvist

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

13 citing papers in PubMed, 25 citations in OpenAlex.

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  13. Impact of HPV infection on the development of head and neck cancer.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2013
    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

7 authors at 1 institution in 1 country.

Juan DuDepartment of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden. juan.du@ki.se
Cecilia Nordfors
Anders Näsman
Michal Sobkowiak
Mircea Romanitan
Tina Dalianis
Torbjörn Ramqvist
Karolinska Institutet · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHuman papillomavirus (HPV), especially HPV16, is associated with the development of both cervical and tonsillar cancer and intratype variants in the amino acid sequence of the HPV16 E6 oncoprotein have been demonstrated to be associated with viral persistence and cancer lesions. For this reason the presence of HPV16 E6 variants in tonsillar squamous cell carcinoma (TSCC) in cervical cancer (CC), as well as in cervical samples (CS), were explored.

methodsHPV16 E6 was sequenced in 108 TSCC and 52 CC samples from patients diagnosed 2000-2008 in the County of Stockholm, and in 51 CS from young women attending a youth health center in Stockholm.

resultsThe rare E6 variant R10G was relatively frequent (19%) in TSCC, absent in CC and infrequent (4%) in CS, while the well-known L83V variant was common in TSCC (40%), CC (31%), and CS (29%). The difference for R10G was significant between TSCC and CC (p = 0.0003), as well as between TSCC and CS (p = 0.009). The HPV16 European phylogenetic lineage and its derivatives dominated in all samples (>90%).

conclusionThe relatively high frequency of the R10G variant in TSCC, as compared to what has been found in CC both in the present study as well as in several other studies in different countries, may indicate a difference between TSCC and CC with regard to tumor induction and development. Alternatively, there could be differences with regard to the oral and cervical prevalence of this variant that need to be explored further.

Indexed as

Polymorphism, GeneticCarcinoma, Squamous CellCase-Control StudiesFemaleHuman papillomavirus 16HumansMaleMiddle AgedOncogene Proteins, ViralPhylogenyRepressor ProteinsReproducibility of ResultsSwedenTonsillar NeoplasmsUterine Cervical NeoplasmsE6 protein, Human papillomavirus type 16Oncogene Proteins, ViralRepressor Proteins

Identifiers

PMID22558401
PMCPMC3338690
OpenAlexW1985728476

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.