Evidence map›Paper›PMID 19002111›Full record

ArticleLaboratory investigation; a journal of technical methods and pathology2009

High levels of Epstein-Barr virus DNA in latently infected gastric adenocarcinoma.

Julie L Ryan, Douglas R Morgan, Ricardo L Dominguez, Leigh B Thorne, Sandra H Elmore, Mari Mino-Kenudson, Gregory Y Lauwers, Jessica K Booker, Margaret L Gulley

Open access · bronzeAbstract read
In one paragraph

Article in Laboratory investigation; a journal of technical methods and pathology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 2 pooled it
1.6field-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

48 citing papers in PubMed, 2 syntheses or guidelines pooled it, 80 citations in OpenAlex.

  1. Pooled it
  2. Circulating Antibodies against Epstein-Barr Virus (EBV) and p53 in EBV-Positive and -Negative Gastric Cancer.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2020
    Pooled it
  3. Article
  4. Epstein-Barr Virus Serology Associated With Persistent Oral Human Papillomavirus Infections in Men.Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology · 2025
    Article
  5. Article
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  7. Article
  8. Review
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  11. Review
  12. Epstein-Barr virus associated gastric dysplasia: a new rare entity?Virchows Archiv : an international journal of pathology · 2022
    Article
  13. Article
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  15. Article
  16. Identification of anti-Epstein-Barr virus (EBV) antibody signature in EBV-associated gastric carcinoma.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2021
    Article
  17. Article
  18. Review
  19. Observational
  20. 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

9 authors at 5 institutions in 2 countries.

Julie L RyanDepartment of Dermatology, University of Rochester Medical Center, Rochester, NY, USA.
Douglas R Morgan
Ricardo L Dominguez
Leigh B Thorne
Sandra H Elmore
Mari Mino-Kenudson
Gregory Y Lauwers
Jessica K Booker
Margaret L Gulley
University of North Carolina at Chapel Hill · USMassachusetts General Hospital · USUNC Lineberger Comprehensive Cancer CenterUniversity of Rochester Medical Center · USWestern Regional Hospital · NP

Funding

PILOT AND FEASIBILITY STUDIESP30DK034987 · NIDDK · UNIV OF NORTH CAROLINA CHAPEL HILL · PI ANTHONY BLIKSLAGER · 1985 to 2026
$30.5M
ENVIRONMENTAL PATHOLOGYT32ES007017 · NIEHS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI KAUFMAN, DAVID G. · 1985 to 2011
$5.1M
NCRR NIH HHS K12 RR1667NIDDK NIH HHS P30 DK 034987NIDDK NIH HHS P30 DK034987NIEHS NIH HHS T32 ES007017NIEHS NIH HHS T32-ES07017
6 · The paper itself

Abstract

Gastric adenocarcinoma is the second leading cause of cancer death worldwide. Epstein-Barr virus (EBV) is present in the malignant cells of approximately 10% of cases. It is unclear whether EBV is being missed in some gastric adenocarcinomas due to insensitive test methods or partial EBV genome loss. In this study, we screened 113 gastric adenocarcinomas from low- and high-incidence regions (United States and Central America) for the presence of EBV using a battery quantitative real-time PCR (Q-PCR) assays targeting disparate segments of the EBV genome (BamH1W, EBNA1, LMP1, LMP2, BZLF1, EBER1) and histochemical stains targeting EBV-encoded RNA (EBER), the latent proteins LMP1 and LMP2, and the lytic proteins BMRF1 and BZLF1. EBV DNA was detected by Q-PCR in 48/75 United States cancers (64%) and in 38/38 Central American cancers (100%), which was a significant difference. EBER was localized to malignant epithelial cells in 8/48 (17%) United States and 3/38 (8%) Central American cancers. Viral loads were considerably higher for EBER-positive vs EBER-negative cancers (mean 162 986 vs 62 EBV DNA copies per 100,000 cells). A viral load of 2000 copies per 100,000 cells is recommended as the threshold distinguishing EBER-positive from EBER-negative tumors. One infected cancer selectively failed to amplify the LMP2 gene because of a point mutation, whereas another cancer had an atypical pattern of Q-PCR positivity suggesting deletion of large segments of the EBV genome. Three different viral latency profiles were observed in the cancers based on constant expression of EBER and focal or variable expression of LMP1 or LMP2, without lytic protein expression. We conclude that EBV DNA levels generally reflect EBER status, and a panel of at least two Q-PCR assays is recommended for sensitive identification of infected cancers.

Indexed as

Virus LatencyAdenocarcinomaBase SequenceComputer SystemsDNA, ViralEpstein-Barr Virus InfectionsGenetic VariationGenome, ViralHerpesvirus 4, HumanHumansIn Situ HybridizationMolecular Sequence DataPolymerase Chain ReactionProtein IsoformsStomach NeoplasmsViral Matrix ProteinsDNA, ViralEBV-associated membrane antigen, Epstein-Barr virusProtein IsoformsViral Matrix Proteins

Identifiers

PMID19002111
PMCPMC2612099
OpenAlexW2087505083

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.