Evidence map›Paper›PMID 30867306›Full record

ArticleJournal of virology2019

Cellular DNA Topoisomerases Are Required for the Synthesis of Hepatitis B Virus Covalently Closed Circular DNA.

Muhammad Sheraz, Junjun Cheng, Liudi Tang, Jinhong Chang, Ju-Tao Guo

Abstract read
In one paragraph

Article in Journal of virology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
–field-weighted citation impact
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

51 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. A nucleosome switch primes Hepatitis B Virus infection.bioRxiv : the preprint server for biology · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. 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

5 authors.

Muhammad SherazMicrobiology and Immunology Graduate Program, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA.
Junjun ChengBaruch S. Blumberg Institute, Doylestown, Pennsylvania, USA.
Liudi TangMicrobiology and Immunology Graduate Program, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA.
Jinhong ChangBaruch S. Blumberg Institute, Doylestown, Pennsylvania, USA.
Ju-Tao GuoBaruch S. Blumberg Institute, Doylestown, Pennsylvania, USA ju-tao.guo@bblumberg.org.

Funding

Evaulation of therapeutic benefits of HBV nucleocapsid assembly inhibitorsR01AI113267 · NIAID · DREXEL UNIVERSITY · PI DU, YANMING, GUO, JU-TAO · 2014 to 2018
$2.9M
NIAID NIH HHS R01 AI113267
6 · The paper itself

Abstract

In order to identify host cellular DNA metabolic enzymes that are involved in the biosynthesis of hepatitis B virus (HBV) covalently closed circular (ccc) DNA, we developed a cell-based assay supporting synchronized and rapid cccDNA synthesis from intracellular progeny nucleocapsid DNA. This was achieved by arresting HBV DNA replication in HepAD38 cells with phosphonoformic acid (PFA), a reversible HBV DNA polymerase inhibitor, at the stage of single-stranded DNA and was followed by removal of PFA to allow the synchronized synthesis of relaxed circular DNA (rcDNA) and subsequent conversion into cccDNA within 12 to 24 h. This cccDNA formation assay allows systematic screening of the effects of small molecular inhibitors of DNA metabolic enzymes on cccDNA synthesis but avoids cytotoxic effects upon long-term treatment. Using this assay, we found that all the tested topoisomerase I and II (TOP1 and TOP2, respectively) poisons as well as topoisomerase II DNA binding and ATPase inhibitors significantly reduced the levels of cccDNA. It was further demonstrated that these inhibitors also disrupted cccDNA synthesis during

Indexed as

Antiviral AgentsDNA, CircularDNA TopoisomerasesDNA, ViralFoscarnetGenome, ViralHepatitis BHepatitis B virusHepatocytesHep G2 CellsHumansRNA, Small InterferingVirionVirus ReplicationAntiviral AgentsDNA, CircularDNA TopoisomerasesDNA, ViralFoscarnetRNA, Small Interferingantiviral agentscccDNADNA topoisomerasehepatitis B virus

Identifiers

PMID30867306
PMCPMC6532102

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.