Evidence map›Paper›PMID 9445049›Full record

ArticleJournal of virology1998

Enhancement of hepatitis B virus infection by noninfectious subviral particles.

M Bruns, S Miska, S Chassot, H Will

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

24 citing papers in PubMed, 60 citations in OpenAlex.

  1. Review
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  5. Virus Assembly Pathways: Straying Away but Not Too Far.Small (Weinheim an der Bergstrasse, Germany) · 2020
    Article
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  7. A short note on HBV infection.Bioinformation · 2020
    Article
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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

4 authors at 2 institutions in 1 country.

M BrunsHeinrich-Pette-Institut für Experimentelle Virologie und Immunologie an der Universität Hamburg, Germany. mbruns@hpi.uni-hamburg.de
S Miska
S Chassot
H Will
Leibniz Institute of Virology (LIV) · DEUniversität Hamburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The biological function of the huge excess of subviral particles over virions in hepatitis B virus infections is unknown. Using the duck hepatitis B virus as a model, we unexpectedly found that subviral particles strongly enhance intracellular viral replication and gene expression. This effect is dependent on the multiplicity of infection, the ratio of virions over subviral particles, and the time point of addition of subviral particles. Most importantly, we show that the pre-S protein of the subviral particles triggers enhancement and requires the presence of the binding regions for putative cell-encoded virus receptor proteins. These data suggest that enhancement is due either to the recently described transactivation function of the pre-S protein or to signalling pathways which become activated upon binding of subviral particles to cellular receptors. The findings are of clinical importance, since they imply that infectivity of sera containing hepadnaviruses depends not only on the amount of infectious virions but also decisively on the number of particles devoid of nucleic acids. A similarly dramatic enhancing effect of noninfectious particles in other virus infections is well conceivable.

Indexed as

Viral Envelope ProteinsVirus ReplicationAnimalsCells, CulturedHepatitis BHepatitis B virusViral ProteinsVirionPre-S protein, Duck hepatitis B virusViral Envelope ProteinsViral Proteins

Identifiers

PMID9445049
PMCPMC124627
OpenAlexW2139206273

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.