Evidence map›Paper›PMID 29402297›Full record

ArticleVirology journal2018

COS-7-based model: methodological approach to study John Cunningham virus replication cycle.

C Prezioso, D Scribano, D M Rodio, C Ambrosi, M Trancassini, A T Palamara, V Pietropaolo

Open access · goldAbstract read
In one paragraph

Article in Virology journal, 2018. 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
0.6field-weighted citation impact, top 29% 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, 12 citations in OpenAlex.

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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

7 authors at 4 institutions in 2 countries.

C PreziosoDepartment of Public Health and Infectous Diseases, Sapienza University of Rome, P.le Aldo Moro, 5, 00185, Rome, Italy.
D ScribanoDepartment of Public Health and Infectous Diseases, Sapienza University of Rome, P.le Aldo Moro, 5, 00185, Rome, Italy.
D M RodioDepartment of Public Health and Infectous Diseases, Sapienza University of Rome, P.le Aldo Moro, 5, 00185, Rome, Italy.
C AmbrosiDepartment of Public Health and Infectous Diseases, Sapienza University of Rome, P.le Aldo Moro, 5, 00185, Rome, Italy.
M TrancassiniDepartment of Public Health and Infectous Diseases, Sapienza University of Rome, P.le Aldo Moro, 5, 00185, Rome, Italy.
A T PalamaraDepartment of Public Health and Infectious Diseases, Institute Pasteur, Cenci-Bolognetti Foundation, "Sapienza" University of Rome, Rome, Italy.
V PietropaoloDepartment of Public Health and Infectous Diseases, Sapienza University of Rome, P.le Aldo Moro, 5, 00185, Rome, Italy. valeria.pietropaolo@uniroma1.it.ORCID 0000-0001-5723-8886
Sapienza University of Rome · ITDepartment of Public Health · MMIstituto Pasteur · ITUniversity of Chieti-Pescara · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

John Cunningham virus (JCV) is a human neurotropic polyomavirus whose replication in the Central Nervous System (SNC) induces the fatal demyelinating disease, progressive multifocal leukoencephalopathy (PML). JCV propagation and PML investigation have been severely hampered by the lack of an animal model and cell culture systems to propagate JCV have been very limited in their availability and robustness. We previously confirmed that JCV CY strain efficiently replicated in COS-7 cells as demonstrated by the progressive increase of viral load by quantitative PCR (Q-PCR) during the time of transfection and that archetypal regulatory structure was maintained, although two characteristic point mutations were detected during the viral cycle. This short report is an important extension of our previous efforts in defining our reliable model culture system able to support a productive JCV infection.Supernatants collected from transfected cells have been used to infect freshly seeded COS-7 cell line. An infectious viral progeny was obtained as confirmed by Western blot and immunofluorescence assay. During infection, the archetype regulatory region was conserved.Importantly, in this study we developed an improved culture system to obtain a large scale production of JC virus in order to study the genetic features, the biology and the pathogenic mechanisms of JC virus that induce PML.

Indexed as

Virus ReplicationAnimalsCell Culture TechniquesChlorocebus aethiopsCOS CellsFluorescent Antibody TechniqueGene ExpressionJC VirusViral ProteinsViral ProteinsCOS-7 cell lineImmunofluorescenceInfectionJCVQ-PCRVP1Western blot

Identifiers

PMID29402297
PMCPMC5799914
OpenAlexW2796033763

What OpenQuestion holds

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LicenceCC BY
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.