Evidence map›Paper›PMID 25271758›Full record

ArticlePloS one2014

The prognostic value of HPV status and p16 expression in patients with carcinoma of the anal canal.

Gloria B Roldán Urgoiti, Karla Gustafson, Alexander C Klimowicz, Stephanie K Petrillo, Anthony M Magliocco, Corinne M Doll

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
3.8field-weighted citation impact, top 7% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. HPV-driven cancer: from epidemiology to the HPV-driven tumor board proposal, everything you wanted to know but were afraid to ask.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
    Review
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  15. Human papillomavirus and gastrointestinal cancer: A review.World journal of gastroenterology · 2016
    Review
  16. Biological Features of Human Papillomavirus-related Head and Neck Cancers Contributing to Improved Response.Clinical oncology (Royal College of Radiologists (Great Britain)) · 2016
    Article
  17. Modulation of therapeutic sensitivity by human papillomavirus.Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology · 2015
    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 2 institutions in 2 countries.

Gloria B Roldán UrgoitiDepartment of Medicine and Oncology, University of Calgary, Calgary, Alberta, Canada.
Karla GustafsonDepartment of Oncology, Tom Baker Cancer Centre, Calgary, Alberta, Canada.
Alexander C KlimowiczDepartment of Oncology, Tom Baker Cancer Centre, Calgary, Alberta, Canada.
Stephanie K PetrilloDepartment of Oncology, Tom Baker Cancer Centre, Calgary, Alberta, Canada.
Anthony M MaglioccoDepartment of Anatomic Pathology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America.
Corinne M DollDepartment of Medicine and Oncology, University of Calgary, Calgary, Alberta, Canada.
University of Calgary · CAMoffitt Cancer Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn anal cancer studies, the detection frequency of high-risk HPV (human papillomavirus) is variable, depending on the method used. There are limited data reporting results of different HPV detection techniques in the same clinical series, and very few correlating results with clinical outcome.

objectivesTo evaluate tumor expression of p16/HPV16 using three different methods, and to determine their association with clinical outcome in patients with anal canal squamous cell carcinomas (SCC).

designThis retrospective study included patients with anal canal SCC treated with definitive radiotherapy or chemoradiotherapy at a single institution between 1992 and 2005. Formalin-fixed paraffin-embedded tumor samples from 53 of the 89 (60%) patient pre-treatment biopsies were adequate for tissue microarray construction. HPV status was determined using: p16 expression by conventional immunohistochemistry (IHC) and quantitative IHC (AQUA), HPV genotype analysis by chromogenic in situ hybridization (CISH) and HPV linear array sub-typing. Expression status was correlated with clinical outcome.

results80% (28/35) of patient tumors had high p16 expression using conventional IHC. HPV16 CISH was positive in 81% (34/42) of tumors, and 78% (28/36) of tumors were HPV subtype 16. HPV16 CISH correlated with p16 evaluated by conventional IHC (correlation coefficient 0.46; p = 0.01) and by p16 AQUA score (correlation coefficient 0.49; p = 0.001). A subset of cases (15%) had very high p16 quantitative IHC scores (>244) and were associated with a higher incidence of local or distant recurrence (p = 0.04).

conclusionsThe vast majority (80%) of anal canal SCC in our series were positive for HPV16/p16, regardless of the testing method used. The exploratory analysis of automated quantitative IHC scoring was the only technique to define a subset of patients with a worse prognosis by p16 expression status on univariate analysis. Further exploration of the molecular mechanisms of treatment resistance in association with very high p16 expression is warranted.

Indexed as

AlphapapillomavirusGene ExpressionAdultAgedAged, 80 and overAnus NeoplasmsBiomarkers, TumorCyclin-Dependent Kinase Inhibitor p16FemaleGenotypeHumansMaleMiddle AgedNeoplasm MetastasisNeoplasm ProteinsPapillomavirus InfectionsBiomarkers, TumorCDKN2A protein, humanCyclin-Dependent Kinase Inhibitor p16Neoplasm Proteins

Identifiers

PMID25271758
PMCPMC4182745
OpenAlexW2069757240

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.