Evidence map›Paper›PMID 25064354›Full record

ArticleCarcinogenesis2014

Tobacco exposure results in increased E6 and E7 oncogene expression, DNA damage and mutation rates in cells maintaining episomal human papillomavirus 16 genomes.

Lanlan Wei, Anastacia M Griego, Ming Chu, Michelle A Ozbun

Open access · bronzeAbstract read
In one paragraph

Article in Carcinogenesis, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

28 citing papers in PubMed, 52 citations in OpenAlex.

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  18. Significance of HPV16 Viral Load Testing in Anal Cancer.Pathology oncology research : POR · 2020
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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

4 authors at 3 institutions in 2 countries.

Lanlan WeiDepartment of Microbiology, Harbin Medical University, Harbin, Heilongjiang 150081, China, Department of Molecular Genetics and Microbiology, The University of New Mexico School of Medicine, Albuquerque, NM 87131, USA and.
Anastacia M GriegoDepartment of Molecular Genetics and Microbiology, The University of New Mexico School of Medicine, Albuquerque, NM 87131, USA and.
Ming ChuThe First Affiliated Hospital of Harbin Medical University, Department of Neurosurgery, Harbin, Heilongjiang 150001, China.
Michelle A OzbunDepartment of Molecular Genetics and Microbiology, The University of New Mexico School of Medicine, Albuquerque, NM 87131, USA and mozbun@salud.unm.edu.
University of New Mexico · USFirst Affiliated Hospital of Harbin Medical University · CNHarbin Medical University · CN

Funding

WOMEN'S CANCERS RESEARCH PROGRAMP30CA118100 · NCI · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI Yolanda Sanchez · 2005 to 2026
$57.1M
NCI NIH HHS P30 CA118100
6 · The paper itself

Abstract

High-risk human papillomavirus (HR-HPV) infections are necessary but insufficient agents of cervical and other epithelial cancers. Epidemiological studies support a causal, but ill-defined, relationship between tobacco smoking and cervical malignancies. In this study, we used mainstream tobacco smoke condensate (MSTS-C) treatments of cervical cell lines that maintain either episomal or integrated HPV16 or HPV31 genomes to model tobacco smoke exposure to the cervical epithelium of the smoker. MSTS-C exposure caused a dose-dependent increase in viral genome replication and correspondingly higher early gene transcription in cells with episomal HPV genomes. However, MSTS-C exposure in cells with integrated HR-HPV genomes had no effect on genome copy number or early gene transcription. In cells with episomal HPV genomes, the MSTS-C-induced increases in E6 oncogene transcription led to decreased p53 protein levels and activity. As expected from loss of p53 activity in tobacco-exposed cells, DNA strand breaks were significantly higher but apoptosis was minimal compared with cells containing integrated viral genomes. Furthermore, DNA mutation frequencies were higher in surviving cells with HPV episomes. These findings provide increased understanding of tobacco smoke exposure risk in HPV infection and indicate tobacco smoking acts more directly to alter HR-HPV oncogene expression in cells that maintain episomal viral genomes. This suggests a more prominent role for tobacco smoke in earlier stages of HPV-related cancer progression.

Indexed as

Mutation RateApoptosisCell LineCervix UteriDNA DamageDose-Response Relationship, DrugEpithelial CellsFemaleGene Expression Regulation, ViralHuman papillomavirus 16HumansOncogene Proteins, ViralPapillomavirus E7 ProteinsPlasmidsRepressor ProteinsSmokingE6 protein, Human papillomavirus type 16oncogene protein E7, Human papillomavirus type 16Oncogene Proteins, ViralPapillomavirus E7 ProteinsRepressor ProteinsTP53 protein, humanTumor Suppressor Protein p53

Identifiers

PMID25064354
PMCPMC4178472
OpenAlexW2116348710

What OpenQuestion holds

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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.