Evidence map›Paper›PMID 26210950›Full record

ArticleVeterinary microbiology2015

Propagation of the Israeli vaccine strain of Anaplasma centrale in tick cell lines.

Lesley Bell-Sakyi, Ana M Palomar, Emma L Bradford, Varda Shkap

Open access · hybridAbstract read
In one paragraph

Article in Veterinary microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

18 citing papers in PubMed, 31 citations in OpenAlex.

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  10. Tick Cell Lines in Research on Tick Control.Frontiers in physiology · 2020
    Review
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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

4 authors at 3 institutions in 3 countries.

Lesley Bell-SakyiThe Pirbright Institute, Ash Road, Pirbright, Woking, Surrey GU24 0NF, UK. Electronic address: lesley.sakyi@pirbright.ac.uk.
Ana M PalomarThe Pirbright Institute, Ash Road, Pirbright, Woking, Surrey GU24 0NF, UK; CIBIR, C/ Piqueras, 98, Logroño 26006, Spain. Electronic address: ampalomar@riojasalud.es.
Emma L BradfordThe Pirbright Institute, Ash Road, Pirbright, Woking, Surrey GU24 0NF, UK; Institute of Biological and Environmental Sciences, University of Aberdeen, Tillydrone Avenue, Aberdeen AB24 2TZ, UK. Electronic address: dr01elb14@abdn.ac.uk.
Varda ShkapKimron Veterinary Institute, Bet Dagan, 50250, Israel. Electronic address: shkapv@int.gov.il.
The Pirbright Institute · GBMinistry of Agriculture and Rural Development · ILUniversity of Aberdeen · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Anaplasma centrale has been used in cattle as a live blood vaccine against the more pathogenic Anaplasma marginale for over 100 years. While A. marginale can be propagated in vitro in tick cell lines, facilitating studies on antigen production, immunisation and vector-pathogen interaction, to date there has been no in vitro culture system for A. centrale. In the present study, 25 cell lines derived from 13 ixodid tick species were inoculated with the Israeli vaccine strain of A. centrale and monitored for at least 12 weeks by microscopic examination of Giemsa-stained cytocentrifuge smears. Infection of 19 tick cell lines was subsequently attempted by transfer of cell-free supernate from vaccine-inoculated tick cells. In two separate experiments, rickettsial inclusions were detected in cultures of the Rhipicephalus appendiculatus cell line RAE25 28-32 days following inoculation with the vaccine. Presence of A. centrale in the RAE25 cells was confirmed by PCR assays targeting the 16S rRNA, groEL and msp4 genes; sequenced PCR products were 100% identical to published sequences of the respective genes in the Israeli vaccine strain of A. centrale. A. centrale was taken through three subcultures in RAE25 cells over a 30 week period. In a single experiment, the Dermacentor variabilis cell line DVE1 was also detectably infected with A. centrale 11 weeks after inoculation with the vaccine. Availability of an in vitro culture system for A. centrale in tick cells opens up the possibility of generating a safer and more ethical vaccine for bovine anaplasmosis.

Indexed as

Anaplasma centraleAnaplasmosisAnimalsBacterial VaccinesBase SequenceCattleCattle DiseasesCell Culture TechniquesCell LineChaperonin 60IxodidaeMolecular Sequence DataPolymerase Chain ReactionRNA, Ribosomal, 16SSequence Analysis, DNAVaccinationBacterial VaccinesChaperonin 60RNA, Ribosomal, 16SAnaplasma centraleAnaplasmosisIn vitro cultureTick cell lineVaccine

Identifiers

PMID26210950
PMCPMC4540598
OpenAlexW835594743

What OpenQuestion holds

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LicenceCC BY
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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.