Evidence map›Paper›PMID 12760870›Full record

ArticleAntimicrobial agents and chemotherapy2003

Generation of stable cell lines expressing Lamivudine-resistant hepatitis B virus for antiviral-compound screening.

Kathie-Anne Walters, Graham A Tipples, Marchelle I Allen, Lynn D Condreay, William R Addison, Lorne Tyrrell

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.8field-weighted citation impact, top 25% 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

2 citing papers in PubMed, 11 citations in OpenAlex.

  1. Review
  2. Novel fluoronucleoside analog NCC inhibits lamivudine-resistant hepatitis B virus in a hepatocyte model.The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases
    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

6 authors at 3 institutions in 2 countries.

Kathie-Anne WaltersDepartment of Medical Microbiology and Immunology, Glaxo Wellcome-Heritage Research Institute, University of Alberta, Edmonton, Alberta, Canada T6G 2H7.
Graham A Tipples
Marchelle I Allen
Lynn D Condreay
William R Addison
Lorne Tyrrell
University of Alberta · CAGlaxoSmithKline (United States) · USResearch Triangle Park Foundation · US

Funding

Wellcome Trust
6 · The paper itself

Abstract

Lamivudine [beta-L-(-)-2',3'-dideoxy-3'-thiacytidine] is a potent inhibitor of hepadnavirus replication and is used both to treat chronic hepatitis B virus (HBV) infections and to prevent reinfection of transplanted livers. Unfortunately, lamivudine-resistant HBV variants do arise during prolonged therapy, indicating a need for additional antiviral drugs. Replication-competent HBV constructs containing the reverse transcriptase domain L180M/M204V and M204I (rtL180M/M204V and rtM204I) mutations associated with lamivudine resistance were used to produce stable cell lines that express the resistant virus. These cell lines contain stable integrations of HBV sequences and produce both intracellular and extracellular virus. HBV produced by these cell lines was shown to have a marked decrease in sensitivity to lamivudine, with 450- and 3,000-fold shifts in the 50% inhibitory concentrations for the rtM204I and rtL180M/M204V viruses, respectively, compared to that for the wild-type virus. Drug assays indicated that the lamivudine-resistant virus exhibited reduced sensitivity to penciclovir [9-(4-hydroxy-3-hydroxymethyl-but-1-yl) guanine] but was still inhibited by the nucleoside analogues CDG (carbocyclic 2'-deoxyguanosine) and abacavir ([1S,4R]-4-[2-amino-6-(cyclopropylamino)-9H-purin-9-yl]-2-cyclopentene-1-methanol). Screening for antiviral compounds active against the lamivudine-resistant HBV can now be done with relative ease.

Indexed as

AbacavirAcyclovirAntiviral AgentsBase SequenceDeoxyguanosineDideoxynucleosidesDNA, ViralDrug Resistance, ViralGuanineHepatitis B virusHumansLamivudineMicrobial Sensitivity TestsMolecular Sequence DataMutagenesis, Site-DirectedTransfection2-amino-1,9-dihydro-9-(3-hydroxy-4-(hydroxymethyl)cyclopentyl)-6H-purine-6-oneAbacavirAcyclovirAntiviral AgentsDeoxyguanosineDideoxynucleosidesDNA, ViralGuanineLamivudinepenciclovir

Identifiers

PMID12760870
PMCPMC155849
OpenAlexW2116979215

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.