Evidence map›Paper›PMID 19535448›Full record

ArticleJournal of virology2009

Detection of clonally expanded hepatocytes in chimpanzees with chronic hepatitis B virus infection.

William S Mason, Huey-Chi Low, Chunxiao Xu, Carol E Aldrich, Catherine A Scougall, Arend Grosse, Andrew Clouston, Deborah Chavez, Samuel Litwin, Suraj Peri and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
1.5field-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

44 citing papers in PubMed, 74 citations in OpenAlex.

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  11. Mitosis of hepatitis B virus-infected cellsJHEP reports : innovation in hepatology · 2022
    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

12 authors at 5 institutions in 2 countries.

William S MasonFox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111, USA. ws_mason@fccc.edu
Huey-Chi Low
Chunxiao Xu
Carol E Aldrich
Catherine A Scougall
Arend Grosse
Andrew Clouston
Deborah Chavez
Samuel Litwin
Suraj Peri
Allison R Jilbert
Robert E Lanford
Fox Chase Cancer Center · USSouth Australia Pathology · AUTexas Biomedical Research Institute · USUniversity of Adelaide · AUUniversity of Queensland · AU

Funding

WORD PROCESSING CENTER--COREP30CA006927 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI Margaret von Mehren · 1985 to 2026
$138.8M
WNV REPLIVAX VACCINE IN NON-HUMAN PRIMATESP51RR013986 · NCRR · TEXAS BIOMEDICAL RESEARCH INSTITUTE · PI GAUDUIN, MARIE-CLAIRE ELISABETH · 1999 to 2011
$79.1M
MOLECULAR BASIS FOR CHRONIC HEPADNAVIRAL INFECTIONSR01AI018641 · NIAID · RESEARCH INST OF FOX CHASE CAN CTR · PI MASON, WILLIAM · 1985 to 2009
$5.2M
EXTRAMURAL RESEARCH FACILITIES CONSTRUCTIONC06RR016228 · NCRR · SOUTHWEST FOUNDATION FOR BIOMEDICAL RES · PI VANDEBERG, JOHN L · 2001 to 2001
$1.9M
Resolution of Acute Hepatitis B Virus Infections in ChimpanzeesR21AI067455 · NIAID · TEXAS BIOMEDICAL RESEARCH INSTITUTE · PI LANFORD, ROBERT E · 2007 to 2008
$449k
EXTRAMURAL RESEARCH FACILITIES CONSTRUCTIONC06RR012087 · NCRR · SOUTHWEST FOUNDATION FOR BIOMEDICAL RES · PI VANDEBERG, JOHN L · 1996 to 1996
–
NCI NIH HHS CA06927NCI NIH HHS P30 CA006927NCRR NIH HHS C06 RR012087NCRR NIH HHS C06 RR016228NCRR NIH HHS P51 RR013986NCRR NIH HHS P51 RR13986NIAID NIH HHS 5R01AI018641NIAID NIH HHS AI067455NIAID NIH HHS R01 AI018641NIAID NIH HHS R21 AI067455
6 · The paper itself

Abstract

During a hepadnavirus infection, viral DNA integrates at a low rate into random sites in the host DNA, producing unique virus-cell junctions detectable by inverse nested PCR (invPCR). These junctions serve as genetic markers of individual hepatocytes, providing a means to detect their subsequent proliferation into clones of two or more hepatocytes. A previous study suggested that the livers of 2.4-year-old woodchucks (Marmota monax) chronically infected with woodchuck hepatitis virus contained at least 100,000 clones of >1,000 hepatocytes (W. S. Mason, A. R. Jilbert, and J. Summers, Proc. Natl. Acad. Sci. USA 102:1139-1144, 2005). However, possible correlations between sites of viral-DNA integration and clonal expansion could not be explored because the woodchuck genome has not yet been sequenced. In order to further investigate this issue, we looked for similar clonal expansion of hepatocytes in the livers of chimpanzees chronically infected with hepatitis B virus (HBV). Liver samples for invPCR were collected from eight chimpanzees chronically infected with HBV for at least 20 years. Fifty clones ranging in size from approximately 35 to 10,000 hepatocytes were detected using invPCR in 32 liver biopsy fragments (approximately 1 mg) containing, in total, approximately 3 x 10(7) liver cells. Based on searching the analogous human genome, integration sites were found on all chromosomes except Y, approximately 30% in known or predicted genes. However, no obvious association between the extent of clonal expansion and the integration site was apparent. This suggests that the integration site per se is not responsible for the outgrowth of large clones of hepatocytes.

Indexed as

AnimalsDNA, ViralHepatitis B, ChronicHepatitis B virusHepatocytesHumansLiverPan troglodytesPolymerase Chain ReactionProvirusesVirus IntegrationDNA, Viral

Identifiers

PMID19535448
PMCPMC2738144
OpenAlexW2121400361

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.