Evidence map›Paper›PMID 27170332›Full record

Observational studyJournal of neurovirology2016

Host cell virus entry mechanisms enhance anti-JCV-antibody switch in natalizumab-treated multiple sclerosis patients.

Anat Achiron, Gadi Miron, Rina Zilkha-Falb, David Magalashvili, Mark Dolev, Yael Stern, Michael Gurevich

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Journal of neurovirology, 2016. 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
0.3field-weighted citation impact, top 35% 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, 3 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

7 authors at 1 institution in 1 country.

Anat AchironMultiple Sclerosis Center, Sheba Medical Center, Tel Hashomer, 52621, Israel. Anat.Achiron@sheba.health.gov.il.
Gadi MironFunctional Genomics and Neurogenomics, Sheba Medical Center, Tel Hashomer, 52621, Israel.
Rina Zilkha-FalbFunctional Genomics and Neurogenomics, Sheba Medical Center, Tel Hashomer, 52621, Israel.
David MagalashviliMultiple Sclerosis Center, Sheba Medical Center, Tel Hashomer, 52621, Israel.
Mark DolevMultiple Sclerosis Center, Sheba Medical Center, Tel Hashomer, 52621, Israel.
Yael SternMultiple Sclerosis Center, Sheba Medical Center, Tel Hashomer, 52621, Israel.
Michael GurevichFunctional Genomics and Neurogenomics, Sheba Medical Center, Tel Hashomer, 52621, Israel.
Sheba Medical Center · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Estimating the individual risk for the development of progressive multifocal leukoencephalopathy (PML) in anti-John Cunningham virus (JCV) antibody-negative patients with multiple sclerosis (MS) treated with natalizumab is a major challenge. A serological conversion occurring under treatment from anti-JCV antibody-negative to positive status may significantly increase this risk. We investigated changes in peripheral blood cells' gene expression induced by natalizumab treatment in anti-JCV antibody-negative MS patients and tested blood transcriptional profile that characterizes patients predisposed to antibody switch under natalizumab treatment. After 3 years of natalizumab treatment, 24.6 % of anti-JCV antibody-negative MS patients switched to become anti-JCV antibody-positive (JCV switchers). Natalizumab induced 946 and 1186 significantly differentiating genes in JCV switchers and non-switchers, respectively. In JCV switchers, the signature was enriched by over-expression of genes associated with the first stages of viral entry to host cells including macropinocytosis (p = 1.82E-06), virus entry via endocytosis (p = 1.60E-06), clathrin-mediated endocytosis (p = 1.13E-04), and caveolar-mediated endocytosis (p = 4.50E-04) pathways. Further analysis to identify pre-existing transcriptional differences that characterize future JCV switchers prior to treatment initiation also demonstrated a transcriptional signature enriched by similar viral entry mechanisms. These findings, verified in an additional independent cohort of natalizumab-treated patients, could lead to future identification of patients that remain anti-JCV antibody-negative thus allowing safe continuation of treatment, as well as the development of future targeted therapeutic interventions to reduce the risk of PML.

Indexed as

Host-Pathogen InteractionsAdultAntibodies, ViralEndocytosisFemaleGene Expression ProfilingGene Expression RegulationHumansImmunologic FactorsIntegrinsJC VirusLeukoencephalopathy, Progressive MultifocalMaleMultiple SclerosisNatalizumabPinocytosisAntibodies, ViralImmunologic FactorsIntegrinsNatalizumabReceptors, Antigen, B-CellReceptors, Antigen, T-CellGene expression profilingJCVMultiple sclerosisNatalizumab

Identifiers

PMID27170332
OpenAlexW2350143517

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.