Evidence map›Paper›PMID 29462212›Full record

ArticlePLoS pathogens2018

Epstein-Barr virus nuclear antigen EBNA-LP is essential for transforming naïve B cells, and facilitates recruitment of transcription factors to the viral genome.

Agnieszka Szymula, Richard D Palermo, Amr Bayoumy, Ian J Groves, Mohammed Ba Abdullah, Beth Holder, Robert E White

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
2.8field-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

60 citing papers in PubMed, 78 citations in OpenAlex.

  1. Review
  2. Epstein-Barr virus (EBV) infection causes human germinal center B cell-derived lymphomas in the absence of EBNA2 expression.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  7. Chromatin Control of EBV Infection and Latency.Current topics in microbiology and immunology · 2025
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  8. Review
  9. Sp140L functions as a herpesvirus restriction factor suppressing viral transcription and activating interferon-stimulated genes.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  10. Review
  11. Multiple sclerosis and infection: history, EBV, and the search for mechanism.Microbiology and molecular biology reviews : MMBR · 2025
    Review
  12. Review
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  17. Review
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Agnieszka SzymulaSection of Virology, Department of Medicine, Imperial College London, London, United Kingdom.
Richard D PalermoSection of Virology, Department of Medicine, Imperial College London, London, United Kingdom.
Amr BayoumySection of Virology, Department of Medicine, Imperial College London, London, United Kingdom.
Ian J GrovesSection of Virology, Department of Medicine, Imperial College London, London, United Kingdom.
Mohammed Ba AbdullahSection of Virology, Department of Medicine, Imperial College London, London, United Kingdom.ORCID 0000-0002-5696-4269
Beth HolderSection of Pediatrics, Department of Medicine, Imperial College London, London, United Kingdom.ORCID 0000-0003-2157-9819
Robert E WhiteSection of Virology, Department of Medicine, Imperial College London, London, United Kingdom.ORCID 0000-0002-5115-2173
Imperial College London · GB

Funding

Medical Research Council MR/L008432/1Medical Research Council MR/N010388/1Wellcome Trust
6 · The paper itself

Abstract

The Epstein-Barr virus (EBV) nuclear antigen leader protein (EBNA-LP) is the first viral latency-associated protein produced after EBV infection of resting B cells. Its role in B cell transformation is poorly defined, but it has been reported to enhance gene activation by the EBV protein EBNA2 in vitro. We generated EBNA-LP knockout (LPKO) EBVs containing a STOP codon within each repeat unit of internal repeat 1 (IR1). EBNA-LP-mutant EBVs established lymphoblastoid cell lines (LCLs) from adult B cells at reduced efficiency, but not from umbilical cord B cells, which died approximately two weeks after infection. Adult B cells only established EBNA-LP-null LCLs with a memory (CD27+) phenotype. Quantitative PCR analysis of virus gene expression after infection identified both an altered ratio of the EBNA genes, and a dramatic reduction in transcript levels of both EBNA2-regulated virus genes (LMP1 and LMP2) and the EBNA2-independent EBER genes in the first 2 weeks. By 30 days post infection, LPKO transcription was the same as wild-type EBV. In contrast, EBNA2-regulated cellular genes were induced efficiently by LPKO viruses. Chromatin immunoprecipitation revealed that EBNA2 and the host transcription factors EBF1 and RBPJ were delayed in their recruitment to all viral latency promoters tested, whereas these same factors were recruited efficiently to several host genes, which exhibited increased EBNA2 recruitment. We conclude that EBNA-LP does not simply co-operate with EBNA2 in activating gene transcription, but rather facilitates the recruitment of several transcription factors to the viral genome, to enable transcription of virus latency genes. Additionally, our findings suggest that EBNA-LP is essential for the survival of EBV-infected naïve B cells.

Indexed as

Gene Expression Regulation, ViralGenome, ViralAdultB-LymphocytesCells, CulturedCell Transformation, ViralEpstein-Barr Virus InfectionsFemaleHEK293 CellsHerpesvirus 4, HumanHumansInfant, NewbornLeukemia, B-CellPregnancyPromoter Regions, GeneticProtein BindingEBNA-LP protein, Human herpesvirus 4Transcription FactorsViral Proteins

Identifiers

PMID29462212
PMCPMC5834210
OpenAlexW2748665876

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.