Evidence map›Paper›PMID 18042799›Full record

ArticleBlood2008

The LMP1 oncogene of EBV activates PERK and the unfolded protein response to drive its own synthesis.

Dong Yun Lee, Bill Sugden

Open access · greenAbstract read
In one paragraph

Article in Blood, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
3.5field-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

72 citing papers in PubMed, 112 citations in OpenAlex.

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  19. Epstein-Barr virus reprograms human B lymphocytes immediately in the prelatent phase of infection.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
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12 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

2 authors at 1 institution in 1 country.

Dong Yun LeeMcArdle Laboratory for Cancer Research, University of Wisconsin-Madison, Madison, WI 53706, USA.
Bill Sugden
University of Wisconsin–Madison · US

Funding

UW COMPREHENSIVE CANCER CENTER SUPPORTP30CA014520 · NCI · UNIVERSITY OF WISCONSIN-MADISON · PI AMY TRENTHAM-DIETZ · 1985 to 2026
$142.6M
Genetic Analysis of EBV's Immortalizing GenesR01CA070723 · NCI · UNIVERSITY OF WISCONSIN-MADISON · PI SUGDEN, WILLIAM M. · 1996 to 2017
$4.6M
NCI NIH HHS CA070723NCI NIH HHS P30 CA014520NCI NIH HHS R01 CA070723
6 · The paper itself

Abstract

The oncogene latent membrane protein 1 (LMP1) of Epstein-Barr virus (EBV) without a ligand drives proliferation of EBV-infected B cells. Its levels vary in cells of clonal populations by more than 100-fold, which leads to multiple distinct activities of the oncogene. At intermediate levels it drives proliferation, and at high levels it inhibits general protein synthesis by inducing phosphorylation of eukaryotic initiation factor 2alpha (eIF2alpha). We have found that LMP1 activates PERK to induce phosphorylation of eIF2alpha, which upregulates activating transcription factor 4 (ATF4) expression. ATF4, in turn, transactivates LMP1's own promoter. LMP1 activates not only PERK but also inositol requiring kinase 1 (IRE1) and ATF6, 3 pathways of the unfolded protein response (UPR). Increasing expression levels of LMP1 induced a dose-dependent increase in IRE1 activity, as measured by its "splicing" of XBP-1. These infected B cells secrete immunoglobins independent of the levels of LMP1, indicating that only a threshold level of XBP-1 is required for the secretion. These findings indicate that LMP1's activation of the UPR is a normal event in a continuum of LMP1's expression that leads both to stimulatory and inhibitory functions and regulates the physiology of EBV-infected B cells in multiple, unexpected modes.

Indexed as

AnimalsB-LymphocytesBurkitt LymphomaCell DivisionCell LineCell Line, TumorChloramphenicol O-AcetyltransferaseeIF-2 KinaseEnzyme ActivationEukaryotic Initiation Factor-2FibroblastsHumansKidneyMicePhosphorylationPlasmidsChloramphenicol O-AcetyltransferaseEBV-associated membrane antigen, Epstein-Barr viruseIF-2 KinaseEukaryotic Initiation Factor-2TelomeraseTERT protein, humanViral Matrix Proteins

Identifiers

PMID18042799
PMCPMC2234060
OpenAlexW2019728262

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.