Evidence map›Paper›PMID 31118260›Full record

ArticleJournal of virology2019

Small Interfering RNA Screening for the Small GTPase Rab Proteins Identifies Rab5B as a Major Regulator of Hepatitis B Virus Production.

Jun Inoue, Masashi Ninomiya, Teruyuki Umetsu, Takuya Nakamura, Takayuki Kogure, Eiji Kakazu, Tomoaki Iwata, Satoshi Takai, Akitoshi Sano, Mitsunori Fukuda and 6 more

Open access · bronzeAbstract 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 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

23 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Virus infection and vesicle trafficking.Frontiers in immunology · 2025
    Review
  8. An Overview of Zika Virus and Zika Virus Induced Neuropathies.International journal of molecular sciences · 2024
    Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Host Subcellular Organelles: Targets of Viral Manipulation.International journal of molecular sciences · 2024
    Review
  14. Article
  15. Article
  16. Extracellular Vesicles and Viruses: Two Intertwined Entities.International journal of molecular sciences · 2023
    Review
  17. Review
  18. Article
  19. Review
  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

16 authors at 6 institutions in 2 countries.

Jun InoueDivision of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan jinoue-drgn@umin.net.ORCID 0000-0003-1171-7835
Masashi NinomiyaDivision of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Teruyuki UmetsuDepartment of Internal Medicine, Kesen-numa City Hospital, Kesennuma, Japan.
Takuya NakamuraDivision of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Takayuki KogureDivision of Gastroenterology, Tohoku Medical and Pharmaceutical University Hospital, Sendai, Japan.
Eiji KakazuDivision of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Tomoaki IwataDivision of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Satoshi TakaiDivision of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Akitoshi SanoDivision of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Mitsunori FukudaDepartment of Integrative Life Sciences, Tohoku University Graduate School of Life Sciences, Sendai, Japan.ORCID 0000-0002-8620-5853
Koichi WatashiDepartment of Virology II, National Institute of Infectious Diseases, Tokyo, Japan.
Masanori IsogawaDepartment of Virology and Liver Unit, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
Yasuhito TanakaDepartment of Virology and Liver Unit, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
Tooru ShimosegawaDivision of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Mark A McNivenDepartment of Biochemistry and Molecular Biology, and Center for Basic Research in Digestive Diseases, Mayo Clinic, Rochester, Minnesota, USA.
Atsushi MasamuneDivision of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Tohoku University · JPNagoya City University · JPMayo Clinic · USNational Institute of Infectious Diseases · JPNumazu City Hospital · JPTohoku Medical and Pharmaceutical University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Viruses are considered to use vesicular trafficking in infected cells, but the details of assembly/release pathways of hepatitis B virus (HBV) are still unknown. To identify key regulators of HBV production, we performed short interfering RNA (siRNA) screening for Rab proteins, which are considered to act as molecular switches in vesicular trafficking using HepG2.2.15 cells. Among 62 Rab proteins, the suppression of Rab5B most significantly increased HBV DNA in the culture supernatant. Surprisingly, 5 days after the transfection of Rab5B siRNA, HBV DNA in the supernatant was increased more than 30-fold, reflecting the increase of infectious HBV particles. Northern blotting showed that transcription of 2.4/2.1-kb mRNA coding envelope proteins containing large hepatitis B surface protein (LHBs) was increased. Analysis of hepatocyte nuclear factors (HNFs) showed that transcription of HNF4α, which is known to enhance 2.4-kb mRNA transcription, was regulated by Rab5B. Also, it was revealed that LHBs had accumulated in the endoplasmic reticulum (ER) after Rab5B depletion but not in the multivesicular body (MVB), which is thought to be an organelle utilized for HBV envelope formation. Therefore, it was considered that Rab5B is required for the transport of LHBs from the ER to MVB. Immunofluorescent microscopy showed that HBs proteins, including LHBs, colocalized with HBc in the ER of Rab5B-depleted cells, suggesting that HBV envelopment occurs not only in the MVB but also in the ER. In conclusion, Rab5B is a key regulator of HBV production and could be a target of antiviral therapy.

Indexed as

Host Microbial InteractionsCell LineCulture MediaDNA, ViralEndoplasmic ReticulumGene SilencingGenetic TestingHepatitis B Surface AntigensHepatitis B virusHepatocytesHumansMultivesicular BodiesProtein Transportrab5 GTP-Binding ProteinsRNA, Small InterferingCulture MediaDNA, ViralHepatitis B Surface AntigensRAB5C protein, humanrab5 GTP-Binding ProteinsRNA, Small Interferingendoplasmic reticulumenvelopehepatitis B virushepatocyte nuclear factormultivesicular bodyRab5B

Identifiers

PMID31118260
PMCPMC6639270
OpenAlexW2945522895

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.