Evidence map›Paper›PMID 26307352›Full record

ArticleBMC veterinary research2015

BoHV-4 immediate early 1 gene is a dispensable gene and its product is not a bone marrow stromal cell antigen 2 counteracting factor.

Valentina Franceschi, Antonio Capocefalo, Sarah Jacca, Alfonso Rosamilia, Sandro Cavirani, Fengwen Xu, Wentao Qiao, Gaetano Donofrio

Open access · goldAbstract read
In one paragraph

Article in BMC veterinary research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact, top 97% 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

1 citing paper in PubMed, 1 citations in OpenAlex.

  1. Review
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

8 authors at 2 institutions in 2 countries.

Valentina FranceschiDepartment of Medical-Veterinary Science, University of Parma, via del Taglio 10, 43126, Parma, Italy. valentina.franceschi@unipr.it.
Antonio CapocefaloDepartment of Medical-Veterinary Science, University of Parma, via del Taglio 10, 43126, Parma, Italy. antonio.capocefalo@nemo.unipr.it.
Sarah JaccaDepartment of Medical-Veterinary Science, University of Parma, via del Taglio 10, 43126, Parma, Italy. sarah.jacca@studenti.unipr.it.
Alfonso RosamiliaDepartment of Medical-Veterinary Science, University of Parma, via del Taglio 10, 43126, Parma, Italy. alfonso.rosamilia@studenti.unipr.it.
Sandro CaviraniDepartment of Medical-Veterinary Science, University of Parma, via del Taglio 10, 43126, Parma, Italy. sandro.cavirani@unipr.it.
Fengwen XuKey Laboratory of Molecular Microbiology and Biotechnology, College of Life Sciences, Nankai University, Tianjin, China. fengwenxu@nankai.edu.cn.
Wentao QiaoKey Laboratory of Molecular Microbiology and Biotechnology, College of Life Sciences, Nankai University, Tianjin, China. wentaoqiao@nankai.edu.cn.
Gaetano DonofrioDepartment of Medical-Veterinary Science, University of Parma, via del Taglio 10, 43126, Parma, Italy. gaetano.donofrio@unipr.it.
University of Parma · ITNankai University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBovine herpesvirus 4 (BoHV-4) is a gammaherpesvirus whose genome was cloned as Bacterial Artificial Chromosome (BAC) and exploited as a gene delivery vector for vaccine purposes. Although BoHV-4 genome has been completely sequenced and its open reading frames (ORFs) structurally defined in silico, most of them are not functionally characterized. In BoHV-4 genome two major immediate early genes (IE) are present, IE1 and IE2. IE2 is an essential gene because its removal from the viral genome renders the virus unable to replicate, whereas for IE1 no many functional information are available.

resultsIn this work, IE1 contribution in initiating and maintaining BoHV-4 lytic replication was assessed generating a recombinant BoHV-4 genome lacking of IE1 gene, BoHV-4ΔIE1. In contrast to BoHV-4IE2 deleted mutant, BoHV-4ΔIE1 infectious replicating viral particles (IRVPs) could be reconstituted following viral DNA electroporation in permissive cells. However the titer of BoHV-4ΔIE1 IRVPs produced into the cell supernatant and BoHV-4ΔIE1 plaques size were reduced respect to BoHV-4 undeleted control. Further the impaired BoHV-4ΔIE1 IRVPs produced into the cell supernatant could be rescued by expressing IE1 gene product in trans, confirming the implication of IE1 in BoHV-4 lytic replication. Next, the possible role of BoHV-4IE1 as bone marrow stromal cell antigen 2 (BST-2) counteracting factor, as hypothesized by IE1 amino-terminal gene product homology with Kaposi Sarcoma Associated Herpesvirus (KSHV) K5, was excluded too.

conclusionsAlthough the real function of BoHV-4IE1 is still elusive, a new BoHV-4 genome gene locus as a target site for the insertion of foreign DNA and resulting in the attenuation of the virus has been revealed. These data can be considered of relevance to improve BoHV-4 gene delivery properties.

Indexed as

AnimalsCell LineChromosomes, Artificial, BacterialGene DeletionGene Expression Regulation, ViralGenes, Immediate-EarlyGenome, ViralHerpesvirus 4, BovineHumansMesenchymal Stem CellsViral Plaque AssayVirus Replication

Identifiers

PMID26307352
PMCPMC4549876
OpenAlexW1689474230

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.