Evidence map›Paper›PMID 29872132›Full record

ArticleScientific reports2018

HEV ORF3 downregulates TLR7 to inhibit the generation of type I interferon via impairment of multiple signaling pathways.

Qingsong Lei, Lin Li, Shujun Zhang, Tianju Li, Xiaomei Zhang, Xiaolin Ding, Bo Qin

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

22 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Hepatitis E virus: from innate sensing to adaptive immune responses.Nature reviews. Gastroenterology & hepatology · 2024
    Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Hepatitis E Virus Immunopathogenesis.Pathogens (Basel, Switzerland) · 2021
    Review
  14. Review
  15. Review
  16. Article
  17. Drug Discovery in Liver Disease Using Kinome Profiling.International journal of molecular sciences · 2021
    Review
  18. Review
  19. Article
  20. Review
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 2 institutions in 1 country.

Qingsong LeiChongqing Key Laboratory of Infectious Diseases and Parasitic Diseases,Department of Infectious Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Lin LiDepartment of hepatic diseases, Chongqing Tranditional Chinese Medicine Hospital, Chongqing, 400011, China.
Shujun ZhangChongqing Key Laboratory of Infectious Diseases and Parasitic Diseases,Department of Infectious Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Tianju LiChongqing Key Laboratory of Infectious Diseases and Parasitic Diseases,Department of Infectious Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Xiaomei ZhangChongqing Key Laboratory of Infectious Diseases and Parasitic Diseases,Department of Infectious Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Xiaolin DingChongqing Key Laboratory of Infectious Diseases and Parasitic Diseases,Department of Infectious Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Bo QinChongqing Key Laboratory of Infectious Diseases and Parasitic Diseases,Department of Infectious Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China. cqqinbo@163.com.
First Affiliated Hospital of Chongqing Medical University · CNChongqing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hepatitis E is the most common type of acute hepatitis prevalent worldwide. The open reading frame 3 protein of HEV (HEV ORF3) is proposed to create a favorable environment for viral replication and pathogenesis. However, the mechanisms by which HEV overcomes the effects of host immunity, particularly the role of ORF3, remain to be established. Expression of IFNα and IFNβ in supernatant and cell samples was examined via ELISA and quantitative RT-PCR. The protein levels of specific signaling factors in cells overexpressing HEV ORF3 were examined via western blot. Analyses of cells transfected with vectors expressing ORF3 demonstrated that HEV ORF3 significantly impairs the generation of endogenous type I interferon through downregulating TLR3 and TLR7 as well as their corresponding downstream signaling pathways. Moreover, inhibition of NFκB, JAK/STAT and JNK/MAPK signaling pathways contributed significantly to suppression of increased levels of TLR7. Levels of p-P65, p-STAT1 and p-JNK were markedly impaired in ORF3-expressing cells, even upon treatment with the respective agonists. HEV ORF3 inhibits the production of endogenous type I interferon through downregulation of TLR3 and TLR7. Furthermore, suppression of TLR7 is achieved through impairment of multiple signaling pathways, including NFκB, JAK/STAT and JNK/MAPK.

Indexed as

Cell LineCell Line, TumorDown-RegulationHepatitis E virusHep G2 CellsHumansInterferon Type INF-kappa BSignal TransductionSTAT1 Transcription FactorTHP-1 CellsToll-Like Receptor 3Toll-Like Receptor 7Viral ProteinsInterferon Type INF-kappa BSTAT1 protein, humanSTAT1 Transcription FactorTLR3 protein, humanToll-Like Receptor 3Toll-Like Receptor 7Viral Proteins

Identifiers

PMID29872132
PMCPMC5988675
OpenAlexW2805828621

What OpenQuestion holds

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LicenceCC BY
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.