Evidence map›Paper›PMID 19846513›Full record

ArticleJournal of virology2010

Hepatitis B virus requires intact caveolin-1 function for productive infection in HepaRG cells.

Alina Macovei, Cristina Radulescu, Catalin Lazar, Stefana Petrescu, David Durantel, Raymond A Dwek, Nicole Zitzmann, Norica Branza Nichita

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

64 citing papers in PubMed, 120 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Hepatitis B and D virus entry.Nature reviews. Microbiology · 2025
    Review
  6. Article
  7. Hepatitis B virus entry, assembly, and egress.Microbiology and molecular biology reviews : MMBR · 2024
    Review
  8. Article
  9. Review
  10. Review
  11. A decade of liver organoids: Advances in disease modeling.Clinical and molecular hepatology · 2023
    Review
  12. Review
  13. Review
  14. Review
  15. Review
  16. Entry Inhibitors of Hepatitis B and D Viruses.Advances in experimental medicine and biology · 2022
    Review
  17. Review
  18. Review
  19. Article
  20. Review

4 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 3 institutions in 3 countries.

Alina MacoveiInstitute of Biochemistry, Splaiul Independentei, 296, Bucharest 77700, Romania.
Cristina Radulescu
Catalin Lazar
Stefana Petrescu
David Durantel
Raymond A Dwek
Nicole Zitzmann
Norica Branza Nichita
Institute of Biochemistry · ROUniversity of Oxford · GBHospices Civils de Lyon · FR

Funding

Wellcome Trust
6 · The paper itself

Abstract

Investigation of the entry pathways of hepatitis B virus (HBV), a member of the family Hepadnaviridae, has been hampered by the lack of versatile in vitro infectivity models. Most concepts of hepadnaviral infection come from the more robust duck HBV system; however, whether the two viruses use the same mechanisms to invade target cells is still a matter of controversy. In this study, we investigate the role of an important plasma membrane component, caveolin-1 (Cav-1), in HBV infection. Caveolins are the main structural components of caveolae, plasma membrane microdomains enriched in cholesterol and sphingolipids, which are involved in the endocytosis of numerous ligands and complex signaling pathways within the cell. We used the HepaRG cell line permissive for HBV infection to stably express dominant-negative Cav-1 and dynamin-2, a GTPase involved in vesicle formation at the plasma membrane and other organelles. The endocytic properties of the newly established cell lines, designated HepaRG(Cav-1), HepaRG(Cav-1Delta1-81), HepaRG(Dyn-2), and HepaRG(Dyn-2K44A), were validated using specific markers for different entry routes. The cells maintained their properties during cell culture, supported differentiation, and were permissive for HBV infection. The levels of both HBV transcripts and antigens were significantly decreased in cells expressing the mutant proteins, while viral replication was not directly affected. Chemical inhibitors that specifically inhibit clathrin-mediated endocytosis had no effect on HBV infection. We concluded that HBV requires a Cav-1-mediated entry pathway to initiate productive infection in HepaRG cells.

Indexed as

Antigens, ViralCaveolin 1Cell LineDynamin IIEndocytosisGene ExpressionHepatitis BHepatitis B virusHumansRNA, ViralVirus ReplicationAntigens, ViralCaveolin 1Dynamin IIRNA, Viral

Identifiers

PMID19846513
PMCPMC2798426
OpenAlexW2117198458

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.