Evidence map›Paper›PMID 27591143›Full record

ArticleAntiviral research2016

Identification of hydrolyzable tannins (punicalagin, punicalin and geraniin) as novel inhibitors of hepatitis B virus covalently closed circular DNA.

Chunlan Liu, Dawei Cai, Lin Zhang, Wei Tang, Ran Yan, Haitao Guo, Xulin Chen

Abstract read
In one paragraph

Article in Antiviral research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
4.3field-weighted citation impact, top 6% 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

43 citing papers in PubMed, 89 citations in OpenAlex.

  1. Article
  2. Review
  3. Sumac Polyphenols as Pan-Herpesvirus Inhibitors.International journal of molecular sciences · 2025
    Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Targeting SARS-CoV-2 Non-Structural Proteins.International journal of molecular sciences · 2023
    Review
  12. The progress of molecules and strategies for the treatment of HBV infection.Frontiers in cellular and infection microbiology · 2023
    Review
  13. Tannin in Ruminant Nutrition: Review.Molecules (Basel, Switzerland) · 2022
    Review
  14. Metabolites · 2022
    Article
  15. Article
  16. Targeting natural products against SARS-CoV-2.Environmental science and pollution research international · 2022
    Review
  17. Microorganisms · 2022
    Article
  18. Article
  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

7 authors at 4 institutions in 2 countries.

Chunlan LiuState Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 43001, Hubei, China.
Dawei CaiDepartment of Microbiology and Immunology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN 46202, USA.
Lin ZhangState Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 43001, Hubei, China.
Wei TangState Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 43001, Hubei, China.
Ran YanDepartment of Microbiology and Immunology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN 46202, USA.
Haitao GuoDepartment of Microbiology and Immunology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN 46202, USA. Electronic address: haitguo@iupui.edu.
Xulin ChenState Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 43001, Hubei, China. Electronic address: chenxl@wh.iov.cn.
Chinese Academy of Sciences · CNIndiana University School of MedicineIndiana University – Purdue University Indianapolis · USWuhan Institute of Virology · CN

Funding

Molecular Mechanisms of HBV cccDNA FormationR01AI110762 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GUO, HAITAO · 2016 to 2025
$3.5M
Development of a novel drug candidate that inhibits hepatitis B virus covalentlyR01AI094474 · NIAID · INDIANA UNIVERSITY INDIANAPOLIS · PI GUO, HAITAO · 2011 to 2015
$3.4M
Development of an HTS Assay for Discovery of HBV cccDNA InhibitorsR01AI123271 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GUO, HAITAO · 2017 to 2019
$1.2M
NIAID NIH HHS R01 AI094474NIAID NIH HHS R01 AI110762NIAID NIH HHS R01 AI123271
6 · The paper itself

Abstract

The development of new agents to target HBV cccDNA is urgently needed because of the limitations of current available drugs for treatment of hepatitis B. By using a cell-based assay in which the production of HBeAg is in a cccDNA-dependent manner, we screened a compound library derived from Chinese herbal remedies for inhibitors against HBV cccDNA. Three hydrolyzable tannins, specifically punicalagin, punicalin and geraniin, emerged as novel anti-HBV agents. These compounds significantly reduced the production of secreted HBeAg and cccDNA in a dose-dependent manner in our assay, without dramatic alteration of viral DNA replication. Furthermore, punicalagin did not affect precore/core promoter activity, pgRNA transcription, core protein expression, or HBsAg secretion. By employing the cell-based cccDNA accumulation and stability assay, we found that these tannins significantly inhibited the establishment of cccDNA and modestly facilitated the degradation of preexisting cccDNA. Collectively, our results suggest that hydrolyzable tannins inhibit HBV cccDNA production via a dual mechanism through preventing the formation of cccDNA and promoting cccDNA decay, although the latter effect is rather minor. These hydrolyzable tannins may serve as lead compounds for the development of new agents to cure HBV infection.

Indexed as

Antiviral AgentsDNA, CircularDNA ReplicationDNA, ViralDrug DiscoveryDrugs, Chinese HerbalGlucosidesHepatitis BHepatitis B e AntigensHepatitis B virusHydrolyzable TanninsSmall Molecule LibrariesVirus ReplicationAntiviral AgentsDNA, CircularDNA, ViralDrugs, Chinese HerbalGeraniinGlucosidesHepatitis B e AntigensHydrolyzable TanninspunicalaginpunicalinSmall Molecule LibrariesAntiviralcccDNAHBVHydrolyzable tannins

Identifiers

PMID27591143
PMCPMC5653380
OpenAlexW2513450606

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.