Evidence map›Paper›PMID 21720711›Full record

ArticleInternational journal of oncology2011

Cigarette smoke condensate-induced oxidative DNA damage and its removal in human cervical cancer cells.

Afsoon Moktar, Rajesh Singh, Manicka V Vadhanam, Srivani Ravoori, James W Lillard, C Gary Gairola, Ramesh C Gupta

Open access · bronzeAbstract read
In one paragraph

Article in International journal of oncology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Relationship between Air Pollutant Exposure and Gynecologic Cancer Risk.International journal of environmental research and public health · 2021
    Article
  8. Article
  9. Review
  10. Article
  11. Smoking cessation advice after cervical screening: a qualitative interview study of acceptability in Dutch primary care.The British journal of general practice : the journal of the Royal College of General Practitioners · 2019
    Article
  12. Article
  13. Article
  14. Article
  15. Genetic susceptibility to cervical cancer: role of common polymorphisms in apoptosis-related genes.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Review
  16. Article
  17. Article
  18. Article
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.

Afsoon MoktarDepartment of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40202 , USA.
Rajesh Singh
Manicka V Vadhanam
Srivani Ravoori
James W Lillard
C Gary Gairola
Ramesh C Gupta
University of Louisville · US

Funding

Morehouse School of Medicine Center of Excellence Research Endowment ProgramS21MD000101 · NIMHD · MOREHOUSE SCHOOL OF MEDICINE · PI MONTGOMERY-RICE, VALERIE C. · 2001 to 2015
$74.3M
TRANSCRIPTION FACTORS AND PROSTATE CANCERG12RR003034 · NCRR · MOREHOUSE SCHOOL OF MEDICINE · PI ZHAO, XUEYING · 1986 to 2011
$32.4M
Research Training & Career Development ProgramU54CA118638 · NCI · MOREHOUSE SCHOOL OF MEDICINE · PI Brian M. Rivers · 2005 to 2026
$22.7M
UOFL ENVIRONMENTAL HEALTH SCIENCES TRAINING PROGRAMT32ES011564 · NIEHS · UNIVERSITY OF LOUISVILLE · PI David W Hein, John Pierce Wise · 2004 to 2026
$7.1M
NCI NIH HHS U54 CA118638NCRR NIH HHS G12 RR003034NIEHS NIH HHS ES-011564NIEHS NIH HHS T32 ES011564NIMHD NIH HHS S21 MD000101
6 · The paper itself

Abstract

Exposure to cigarette smoke is well documented to increase oxidative stress and could account for higher risk of cervical cancer in smokers. Cervical pre-cancerous lesions that are initiated by human papillomavirus (HPV) infection generally regress in the absence of known risk factors such as smoking. 8-oxodeoxyguanosine (8-oxodG) is a highly mutagenic oxidative DNA lesion that is formed by the oxidation of deoxyguanosine. In the present study, we examined: a) the effect of cigarette smoke condensate (CSC) on 8-oxodG formation in and its removal from HPV-transfected (ECT1/E6 E7), HPV-positive (CaSki) and HPV-negative (C33A) human cervical cancer cells, and b) the cell cycle progression and apoptosis in CSC-treated ECT1/E6 E7 cells. CSC induced 8-oxodG in a dose- (p=0.03) and time (p=0.002)-dependent fashion in ECT1/E6 E7 cells as determined by flow cytometry. A 2.4-fold higher level of 8-oxodG was observed in HPV-positive compared with HPV-negative cells. However, 8-oxodG lesions were almost completely removed 72 h post-exposure in all cell lines as determined by ImageStream analysis. This observation correlates with the 2- and 5-fold increase in the p53 levels in ECT1/E6 E7 and CaSki cells with no significant change in C33A cells. We conclude that: a) cigarette smoke constituents induce oxidative stress with higher burden in HPV-positive cervical cancer cells and b) the significant increase observed in p53 levels in wild-type cervical cells (ECT1/E6 E7 and CaSki) may be attributed to the p53-dependent DNA repair pathway while a p53-independent pathway in C33A cells cannot be ruled out.

Indexed as

DNA DamageNicotiana8-Hydroxy-2'-DeoxyguanosineApoptosisCell CycleCell Line, TransformedCell Line, TumorCell Transformation, ViralDeoxyguanosineDNA RepairFemaleGenes, p53Human papillomavirus 16HumansOxidative StressPapillomavirus Infections8-Hydroxy-2'-DeoxyguanosineDeoxyguanosineSmoke

Identifiers

PMID21720711
PMCPMC3760590
OpenAlexW2070538118

What OpenQuestion holds

Textmetadata
LicenceTDM
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.