Evidence map›Paper›PMID 23084922›Full record

ArticleCell host & microbe2012

Short-range exosomal transfer of viral RNA from infected cells to plasmacytoid dendritic cells triggers innate immunity.

Marlène Dreux, Urtzi Garaigorta, Bryan Boyd, Elodie Décembre, Josan Chung, Christina Whitten-Bauer, Stefan Wieland, Francis V Chisari

Open access · bronzeAbstract read
In one paragraph

Article in Cell host & microbe, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 301 papers.

0numbers the graph read from it
0cells of the map it votes in
301citing papers in PubMed
15.4field-weighted citation impact, top 1% 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

301 citing papers in PubMed, 455 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Review
  6. Review
  7. Extracellular vesicles in viral disease management.Current research in microbial sciences · 2026
    Review
  8. Review
  9. Review
  10. Characterizing Keratinocyte-Derived Extracellular Vesicles in UVB-Irradiated Murine Skin.JID innovations : skin science from molecules to population health · 2026
    Article
  11. Exosome: an overview on enhanced biogenesis by small molecules.Naunyn-Schmiedeberg's archives of pharmacology · 2025
    Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Review
  20. Review

241 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

8 authors at 2 institutions in 3 countries.

Marlène DreuxDepartment of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA. marlene.dreux@ens-lyon.fr
Urtzi Garaigorta
Bryan Boyd
Elodie Décembre
Josan Chung
Christina Whitten-Bauer
Stefan Wieland
Francis V Chisari
Scripps Research Institute · USUniversité Claude Bernard Lyon 1 · FR

Funding

Mechanisms Of Pathogen Recognition And Innate Immune Control Of Hepatitis C VirusU19AI088778 · NIAID · UNIVERSITY OF WASHINGTON · PI LAU, DARYL T · 2010 to 2014
$4.2M
Innate Control of Hepatitis C Virus Infection: Antiviral and Evasion MechanismsR01AI079043 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI CHISARI, FRANCIS VINCENT · 2010 to 2014
$2.3M
Innate Control of Hepatitis C Virus Infection: Antiviral and Evasion MechanismsR56AI079043 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI CHISARI, FRANCIS VINCENT · 2008 to 2009
$949k
NIAID NIH HHS AI079043NIAID NIH HHS AI088778NIAID NIH HHS R01 AI079043NIAID NIH HHS R56 AI079043NIAID NIH HHS U19 AI088778
6 · The paper itself

Abstract

Viral nucleic acids often trigger an innate immune response in infected cells. Many viruses, including hepatitis C virus (HCV), have evolved mechanisms to evade intracellular recognition. Nevertheless, HCV-permissive cells can trigger a viral RNA-, TLR7-, and cell-contact-dependent compensatory interferon response in nonpermissive plasmacytoid dendritic cells (pDCs). Here we report that these events are mediated by transfer of HCV-RNA-containing exosomes from infected cells to pDCs. The exosomal viral RNA transfer is dependent on the endosomal sorting complex required for transport (ESCRT) machinery and on Annexin A2, an RNA-binding protein involved in membrane vesicle trafficking, and is suppressed by exosome release inhibitors. Further, purified concentrated HCV-RNA-containing exosomes are sufficient to activate pDCs. Thus, vesicular sequestration and exosomal export of viral RNA may serve both as a viral strategy to evade pathogen sensing within infected cells and as a host strategy to induce an unopposed innate response in replication-nonpermissive bystander cells.

Indexed as

Immunity, InnateCells, CulturedDendritic CellsExosomesHepacivirusHepatocytesHumansRNA, ViralRNA, Viral

Identifiers

PMID23084922
PMCPMC3479672
OpenAlexW2072109464

What OpenQuestion holds

Textmetadata
LicenceTDM
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.