Evidence map›Paper›PMID 27630244›Full record

ArticleJournal of virology2016

Hepatitis C Virus Is Released via a Noncanonical Secretory Route.

Karen Bayer, Carina Banning, Volker Bruss, Linda Wiltzer-Bach, Michael Schindler

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

25 citing papers in PubMed, 37 citations in OpenAlex.

  1. The Role of Glycans in Human Immunity-A Sweet Code.Molecules (Basel, Switzerland) · 2025
    Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
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  10. Article
  11. Review
  12. Glycan Nanostructures of Human Coronaviruses.International journal of nanomedicine · 2021
    Review
  13. Whole Lotta Lipids-from HCV RNA Replication to the Mature Viral Particle.International journal of molecular sciences · 2020
    Review
  14. Article
  15. Exploitation of glycosylation in enveloped virus pathobiology.Biochimica et biophysica acta. General subjects · 2019
    Review
  16. Article
  17. Relevance of Rab Proteins for the Life Cycle of Hepatitis C Virus.Frontiers in cell and developmental biology · 2018
    Review
  18. Review
  19. Article
  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

5 authors at 2 institutions in 1 country.

Karen BayerInstitute of Virology, Helmholtz Zentrum München-German Research Center for Environmental Health, Munich, Germany.
Carina BanningHeinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany.
Volker BrussInstitute of Virology, Helmholtz Zentrum München-German Research Center for Environmental Health, Munich, Germany.
Linda Wiltzer-BachUniversity Hospital Tübingen, Institute for Medical Virology and Epidemiology of Viral Diseases, Tübingen, Germany.
Michael SchindlerInstitute of Virology, Helmholtz Zentrum München-German Research Center for Environmental Health, Munich, Germany michael.schindler@med.uni-tuebingen.de.
Helmholtz Zentrum München · DELeibniz Institute of Virology (LIV) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We analyzed hepatitis C virus (HCV) morphogenesis using viral genomes encoding a mCherry-tagged E1 glycoprotein. HCV-E1-mCherry polyprotein expression, intracellular localization, and replication kinetics were comparable to those of untagged HCV, and E1-mCherry-tagged viral particles were assembled and released into cell culture supernatants. Expression and localization of structural E1 and nonstructural NS5A followed a temporospatial pattern with a succinct decrease in the number of replication complexes and the appearance of E1-mCherry punctae. Interaction of the structural proteins E1, Core, and E2 increased at E1-mCherry punctae in a time-dependent manner, indicating that E1-mCherry punctae represent assembled or assembling virions. E1-mCherry did not colocalize with Golgi markers. Furthermore, the bulk of viral glycoproteins within released particles revealed an EndoH-sensitive glycosylation pattern, indicating an absence of viral glycoprotein processing by the Golgi apparatus. In contrast, HCV-E1-mCherry trafficked with Rab9-positive compartments and inhibition of endosomes specifically suppressed HCV release. Our data suggest that assembled HCV particles are released via a noncanonical secretory route involving the endosomal compartment. IMPORTANCE: The goal of this study was to shed light on the poorly understood trafficking and release routes of hepatitis C virus (HCV). For this, we generated novel HCV genomes which resulted in the production of fluorescently labeled viral particles. We used live-cell microscopy and other imaging techniques to follow up on the temporal dynamics of virus particle formation and trafficking in HCV-expressing liver cells. While viral particles and viral structural protein were found in endosomal compartments, no overlap of Golgi structures could be observed. Furthermore, biochemical and inhibitor-based experiments support a HCV release route which is distinguishable from canonical Golgi-mediated secretion. Since viruses hijack cellular pathways to generate viral progeny, our results point toward the possible existence of a not-yet-described cellular secretion route.

Indexed as

Cell CompartmentationCell LineEndosomesGenome, ViralGolgi ApparatusHepacivirusHumansLuminescent ProteinsMannoserab GTP-Binding ProteinsRecombinant Fusion ProteinsRed Fluorescent ProteinViral Envelope ProteinsVirus AssemblyVirus ReleaseVirus ReplicationE1 protein, Hepatitis C virusLuminescent ProteinsMannoseRAB9A protein, humanrab GTP-Binding ProteinsRecombinant Fusion ProteinsRed Fluorescent ProteinViral Envelope Proteins

Identifiers

PMID27630244
PMCPMC5110177
OpenAlexW2519776137

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.