Evidence map›Paper›PMID 28415784›Full record

ArticleOncotarget2017

Misregulation of DNA damage repair pathways in HPV-positive head and neck squamous cell carcinoma contributes to cellular radiosensitivity.

Catherine M Nickson, Parisa Moori, Rachel J Carter, Carlos P Rubbi, Jason L Parsons

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% 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

69 citing papers in PubMed, 1 synthesis or guideline pooled it, 93 citations in OpenAlex.

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  18. The Cellular Response to Complex DNA Damage Induced by Ionising Radiation.International journal of molecular sciences · 2023
    Review
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9 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Catherine M NicksonCancer Research Centre, Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool L3 9TA, UK.
Parisa MooriCancer Research Centre, Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool L3 9TA, UK.
Rachel J CarterCancer Research Centre, Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool L3 9TA, UK.
Carlos P RubbiCancer Research Centre, Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool L3 9TA, UK.
Jason L ParsonsCancer Research Centre, Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool L3 9TA, UK.
University of Liverpool · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Patients with human papillomavirus type 16 (HPV)-associated oropharyngeal squamous cell carcinomas (OPSCC) display increased sensitivity to radiotherapy and improved survival rates in comparison to HPV-negative forms of the disease. However the cellular mechanisms responsible for this characteristic difference are unclear. Here, we have investigated the contribution of DNA damage repair pathways to the in vitro radiosensitivity of OPSCC cell lines. We demonstrate that two HPV-positive OPSCC cells are indeed more radiosensitive than two HPV-negative OPSCC cells, which correlates with reduced efficiency for the repair of ionising radiation (IR)-induced DNA double strand breaks (DSB). Interestingly, we show that HPV-positive OPSCC cells consequently have upregulated levels of the proteins XRCC1, DNA polymerase β, PNKP and PARP-1 which are involved in base excision repair (BER) and single strand break (SSB) repair. This translates to an increased capacity and efficiency for the repair of DNA base damage and SSBs in these cells. In addition, we demonstrate that HPV-positive but interestingly more so HPV-negative OPSCC display increased radiosensitivity in combination with the PARP inhibitor olaparib. This suggests that PARP inhibition in combination with radiotherapy may be an effective treatment for both forms of OPSCC, particularly for HPV-negative OPSCC which is relatively radioresistant.

Indexed as

DNA DamageDNA RepairGene Expression Regulation, NeoplasticCarcinoma, Squamous CellCell Line, TumorDNA Breaks, Double-StrandedHead and Neck NeoplasmsHistonesHumansPapillomavirus InfectionsPoly(ADP-ribose) Polymerase InhibitorsRadiation, IonizingRadiation ToleranceSquamous Cell Carcinoma of Head and NeckTumor Suppressor p53-Binding Protein 1HistonesPoly(ADP-ribose) Polymerase InhibitorsTumor Suppressor p53-Binding Protein 1base excision repairDNA repairHNSCCHPVPARP

Identifiers

PMID28415784
PMCPMC5444717
OpenAlexW2596851526

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.