Evidence map›Paper›PMID 26581990›Full record

ArticleJournal of virology2016

Knockdown of Autophagy Inhibits Infectious Hepatitis C Virus Release by the Exosomal Pathway.

Shubham Shrivastava, Pradip Devhare, Nanthiya Sujijantarat, Robert Steele, Young-Chan Kwon, Ranjit Ray, Ratna B Ray

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 91 papers.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed
8.1field-weighted citation impact, top 2% 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

91 citing papers in PubMed, 133 citations in OpenAlex.

  1. Autophagy in the liver.Autophagy reports · 2026
    Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Extracellular Vesicles inInternational journal of molecular sciences · 2024
    Review
  10. Host Subcellular Organelles: Targets of Viral Manipulation.International journal of molecular sciences · 2024
    Review
  11. Review
  12. Review
  13. Article
  14. Autophagy dark genes: Can we find them with machine learning?Natural sciences (Weinheim, Germany) · 2023
    Article
  15. Exosome-Autophagy Crosstalk in Enveloped Virus Infection.International journal of molecular sciences · 2023
    Review
  16. Review
  17. The role of autophagy in viral infections.Journal of biomedical science · 2023
    Review
  18. Review
  19. Review
  20. Article

31 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

7 authors at 1 institution in 1 country.

Shubham ShrivastavaDepartment of Pathology, Saint Louis University, Saint Louis, Missouri, USA.
Pradip DevhareDepartment of Pathology, Saint Louis University, Saint Louis, Missouri, USA.
Nanthiya SujijantaratDepartment of Pathology, Saint Louis University, Saint Louis, Missouri, USA.
Robert SteeleDepartment of Pathology, Saint Louis University, Saint Louis, Missouri, USA.
Young-Chan KwonDepartment of Internal Medicine, Saint Louis University, Saint Louis, Missouri, USA.
Ranjit RayDepartment of Internal Medicine, Saint Louis University, Saint Louis, Missouri, USA.
Ratna B RayDepartment of Pathology, Saint Louis University, Saint Louis, Missouri, USA Department of Internal Medicine, Saint Louis University, Saint Louis, Missouri, USA rayrb@slu.edu.
Saint Louis University · US

Funding

Innate Immunity and Hepatitis C Virus InfectionR01DK081817 · NIDDK · SAINT LOUIS UNIVERSITY · PI RAY, RATNA B. · 2009 to 2020
$3.3M
Mechanisms of Liver Disease Progression by Hepatitis C VirusR01DK080812 · NIDDK · SAINT LOUIS UNIVERSITY · PI RAY, RANJIT · 2009 to 2013
$1.6M
NIDDK NIH HHS DK080812NIDDK NIH HHS DK081817NIDDK NIH HHS R01 DK080812NIDDK NIH HHS R01 DK081817
6 · The paper itself

Abstract

unlabelledHepatitis C virus (HCV) is a major cause of chronic hepatitis, liver cirrhosis, and hepatocellular carcinoma in humans. We showed previously that HCV induces autophagy for viral persistence by preventing the innate immune response. Knockdown of autophagy reduces extracellular HCV release, although the precise mechanism remains unknown. In this study, we observed that knockdown of autophagy genes enhances intracellular HCV RNA and accumulates infectious virus particles in cells. Since HCV release is linked with the exosomal pathway, we examined whether autophagy proteins associate with exosomes in HCV-infected cells. We observed an association between HCV and the exosomal marker CD63 in autophagy knockdown cells. Subsequently, we observed that levels of extracellular infectious HCV were significantly lower in exosomes released from autophagy knockdown cells. To understand the mechanism for reduced extracellular infectious HCV in the exosome, we observed that an interferon (IFN)-stimulated BST-2 gene is upregulated in autophagy knockdown cells and associated with the exosome marker CD63, which may inhibit HCV assembly or release. Taken together, our results suggest a novel mechanism involving autophagy and exosome-mediated HCV release from infected hepatocytes. IMPORTANCE: Autophagy plays an important role in HCV pathogenesis. Autophagy suppresses the innate immune response and promotes survival of virus-infected hepatocytes. The present study examined the role of autophagy in secretion of infectious HCV from hepatocytes. Autophagy promoted HCV trafficking from late endosomes to lysosomes, thus providing a link with the exosome. Inhibition of HCV-induced autophagy could be used as a strategy to block exosome-mediated virus transmission.

Indexed as

AutophagyHost-Pathogen InteractionsVirus ReleaseCell LineCytosolHepacivirusHepatocytesHumansRNA, ViralVirionRNA, Viral

Identifiers

PMID26581990
PMCPMC4719613
OpenAlexW2221448846

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.