Evidence map›Paper›PMID 19721068›Full record

ArticleAntimicrobial agents and chemotherapy2009

Development of NS3/4A protease-based reporter assay suitable for efficiently assessing hepatitis C virus infection.

Kao-Lu Pan, Jin-Ching Lee, Hsing-Wen Sung, Teng-Yuang Chang, John T-A Hsu

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.1field-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

10 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
  2. Cell Cultures for Virology: Usability, Advantages, and Prospects.International journal of molecular sciences · 2020
    Review
  3. Article
  4. Review
  5. Article
  6. Visualizing hepatitis C virus infection in humanized mice.Journal of immunological methods · 2014
    Review
  7. Article
  8. Article
  9. Review
  10. A cell protection screen reveals potent inhibitors of multiple stages of the hepatitis C virus life cycle.Proceedings of the National Academy of Sciences of the United States of America · 2010
    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

5 authors at 4 institutions in 1 country.

Kao-Lu PanDepartment of Chemical Engineering, National Tsing-Hua University, Hsin-Chu, Taiwan, Republic of China.
Jin-Ching Lee
Hsing-Wen Sung
Teng-Yuang Chang
John T-A Hsu
National Tsing Hua University · TWKaohsiung Medical University · TWNational Health Research Institutes · TWNational Yang Ming Chiao Tung University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A cell culture system for the production of hepatitis C virus (HCV) whole virions has greatly accelerated studies of the virus life cycle and the discovery of anti-HCV agents. However, the quantification of the HCV titers in a whole-virus infection/replication system currently relies mostly on reverse transcription-PCR or immunofluorescence assay, which would be cumbersome for high-throughput drug screening. To overcome this problem, this study has generated a novel cell line, Huh7.5-EG(Delta4B5A)SEAP, that carries a dual reporter, EG(Delta4B5A)SEAP. The EG(Delta4B5A)SEAP reporter is a viral protease-cleavable fusion protein in which the enhanced green fluorescence protein is linked to secreted alkaline phosphatase (SEAP) in frame via Delta4B5A, a short peptide cleavage substrate for NS3/4A viral protease. This study demonstrates that virus replication/infection in the Huh7.5-EG(Delta4B5A)SEAP cells can be quantitatively indicated by measuring the SEAP activity in cell culture medium. The levels of SEAP released from HCV-infected Huh7.5-EG(Delta4B5A)SEAP cells correlated closely with the amounts of HCV in the inocula. The Huh7.5-EG(Delta4B5A)SEAP cells were also shown to be a suitable host for the discovery of anti-HCV inhibitors by using known compounds that target multiple stages of the HCV life cycle. The Z'-factor of this assay ranged from 0.64 to 0.74 in 96-well plates, indicating that this reporter system is suitable for high-throughput screening of prospective anti-HCV agents.

Indexed as

Alkaline PhosphataseAntiviral AgentsCarrier ProteinsCell LineDEAD-box RNA HelicasesGenes, ReporterHepacivirusHigh-Throughput Screening AssaysHumansIntracellular Signaling Peptides and ProteinsNucleoside-TriphosphataseSerine EndopeptidasesViral Nonstructural ProteinsViral ProteasesViral ProteinsVirus ReplicationAlkaline PhosphataseAntiviral AgentsCarrier ProteinsDEAD-box RNA HelicasesIntracellular Signaling Peptides and ProteinsNS3 protein, hepatitis C virusNS4A cofactor peptide, Hepatitis C virusNucleoside-TriphosphataseSerine EndopeptidasesViral Nonstructural ProteinsViral ProteasesViral Proteins

Identifiers

PMID19721068
PMCPMC2772346
OpenAlexW2138633555

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.