Evidence map›Paper›PMID 22514348›Full record

ArticleJournal of virology2012

Epstein-Barr virus latent membrane protein 2A promotes invasion of nasopharyngeal carcinoma cells through ERK/Fra-1-mediated induction of matrix metalloproteinase 9.

Yu-Yan Lan, Jenn-Ren Hsiao, Kung-Chao Chang, Jeffrey Shu-Ming Chang, Chaio-Wei Chen, Hsiao-Ching Lai, Shih-Yi Wu, Tzu-Hao Yeh, Fang-Hsin Chang, Wei-Hung Lin and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
3.3field-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

41 citing papers in PubMed, 59 citations in OpenAlex.

  1. Review
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  3. When AHR signaling pathways meet viral infections.Cell communication and signaling : CCS · 2023
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  17. Activation of c-Jun/JNK signaling predicts poor prognosis in nasopharyngeal carcinoma.International journal of clinical and experimental pathology · 2018
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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

12 authors at 2 institutions in 1 country.

Yu-Yan LanNational Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Tainan, Taiwan.
Jenn-Ren Hsiao
Kung-Chao Chang
Jeffrey Shu-Ming Chang
Chaio-Wei Chen
Hsiao-Ching Lai
Shih-Yi Wu
Tzu-Hao Yeh
Fang-Hsin Chang
Wei-Hung Lin
Ih-Jen Su
Yao Chang
National Cheng Kung University · TWNational Health Research Institutes · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Epstein-Barr virus (EBV)-associated nasopharyngeal carcinoma (NPC) is highly metastatic, and this malignant feature may be promoted by an EBV oncoprotein, latent membrane protein 2A (LMP2A). Acting as a signal regulator, LMP2A can enhance invasiveness and motility of epithelial cells. Downstream from the LMP2A-triggered signaling events, it is largely unknown what key effector proteins are induced and essentially promote cell invasion. In the present study, we found that in NPC cells, LMP2A upregulated matrix metalloproteinase 9 (MMP9), a metastasis-associated protease. LMP2A increased MMP9 expression at both the mRNA and protein levels. It also activated the MMP9 promoter, in which two AP-1 elements were required for the promoter activation. Among AP-1 transcription factors, Fra-1 was induced by LMP2A and is essential for LMP2A-triggered MMP9 expression. Induction of Fra-1 was dependent on the LMP2A-activated ERK1/2 pathway, and induction of the ERK1/2-Fra-1-MMP9 axis required PY motifs in the amino-terminal domain of LMP2A. Notably, LMP2A-promoted invasion of NPC cells was blocked when MMP9 expression, Fra-1 induction, or ERK1/2 activation was inhibited. In addition, we found an association of LMP2A with MMP9 expression in NPC tumor biopsy specimens, where Fra-1 was a major mediation factor. This study reveals an underlying mechanism of LMP2A-induced cell invasion, from signal transduction to upregulation of a critical protease. Considering that MMP9 can also be upregulated by another EBV oncoprotein, LMP1, this protease may be a pivotal effector at which the EBV-induced, invasion-promoting mechanisms converge, serving as an attractive therapeutic target for NPC treatment.

Indexed as

MAP Kinase Signaling SystemCarcinomaEpstein-Barr Virus InfectionsFos-Related Antigen 1Herpesvirus 4, HumanHumansMatrix Metalloproteinase 9Nasopharyngeal CarcinomaNasopharyngeal NeoplasmsProto-Oncogene Proteins c-fosTranscriptional ActivationTranscription Factor AP-1Up-RegulationViral Matrix ProteinsEBV-associated membrane antigen, Epstein-Barr virusFos-Related Antigen 1Matrix Metalloproteinase 9Proto-Oncogene Proteins c-fosTranscription Factor AP-1Viral Matrix Proteins

Identifiers

PMID22514348
PMCPMC3393536
OpenAlexW2167058139

What OpenQuestion holds

Textmetadata
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.