Evidence map›Paper›PMID 19719772›Full record

ArticleCancer science2009

Pre-S2 deletion mutants of hepatitis B virus could have an important role in hepatocarcinogenesis in Asian children.

Kenji Abe, Swan N Thung, Han-Chieh Wu, Tung Thanh Tran, Phuc Le Hoang, Khai Dinh Truong, Ayano Inui, Ja June Jang, Ih-Jen Su

Open access · greenAbstract read
In one paragraph

Article in Cancer science, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

27 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Natural History of Chronic Hepatitis B Virus Infection in Ahvaz City, IranAsian Pacific journal of cancer prevention : APJCP · 2018
    Article
  6. Hepatitis B virus pre-S/S variants in liver diseases.World journal of gastroenterology · 2018
    Review
  7. Article
  8. Article
  9. Article
  10. Pediatric hepatitis B treatment.Annals of translational medicine · 2017
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Review
  20. Observational
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

9 authors at 7 institutions in 4 countries.

Kenji AbeDepartment of Pathology, National Institute of Infectious Diseases, Tokyo, Japan. kenjiabe@nih.go.jp
Swan N Thung
Han-Chieh Wu
Tung Thanh Tran
Phuc Le Hoang
Khai Dinh Truong
Ayano Inui
Ja June Jang
Ih-Jen Su
National Health Research Institutes · TWBoston Children's Hospital · USMount Sinai Medical Center · USNational Institute of Infectious Diseases · JPSaiseikai Yokohama Eastern Hospital · JPSeoul National University · KRUniversity Gastroenterology · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although many studies on the risk factors and their carcinogenesis in adult hepatocellular carcinoma (HCC) have been reported, they remain poorly understood in childhood HCC. A retrospective study of 42 HCC cases in Asian children was conducted. Hepatitis B virus (HBV)-DNA in HCC tissues was detected in 36 of 42 (86%) cases tested, while no hepatitis C virus (HCV)-RNA was detectable in any of HCCs. Twenty of 36 (56%) HCC cases were accompanied by cirrhosis. Surprisingly, very high prevalence of the HBV pre-S deletion mutant was recognized in 27 of 30 (90%) HCCs examined. They occurred most frequently in pre-S2 (20/27, 74%) followed by pre-S1 (5/27, 18.5%), and both pre-S1/S2 (2/27, 7.4%). Interestingly, the pre-S2 mutant consistently appeared with deletion at nt 4-57 in all of the 20 cases with the pre-S2 mutant (100%) and within this locus in the two cases with both pre-S-1/S2 mutants. Type II ground-glass hepatocytes in non-tumorous livers were seen in 15 of the 22 HCCs with the pre-S2 deletion mutant (68%). This hotspot mutation in the pre-S2 was further confirmed by complete genomic sequence of HBV in a Japanese boy who eventually developed HCC. Our result strongly suggests that HBV is a major contributor to the development of HCC in Asian children. The HBV pre-S2 deletion mutant at nt 4-57 which has a CD8 T-cell epitope could be responsible for the emergence and aggressive outcome of childhood HCC. Determination of this hotspot mutation in the pre-S2 region could be a useful index for predicting the clinical outcome of HCC development.

Indexed as

Gene DeletionAdolescentCarcinoma, HepatocellularChildChild, PreschoolFemaleHepatitis B Surface AntigensHepatitis B virusHumansLiver NeoplasmsMaleProtein PrecursorsHepatitis B Surface Antigenspresurface protein 2, hepatitis B surface antigenProtein Precursors

Identifiers

PMID19719772
PMCPMC11159494
OpenAlexW2047626861

What OpenQuestion holds

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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.