Evidence map›Paper›PMID 31724162›Full record

ArticleEuropean journal of immunology2020

LCMV-specific CD4 T cell dependent polyclonal B-cell activation upon persistent viral infection is short lived and extrafollicular.

Ute Greczmiel, Nike J Kräutler, Mariana Borsa, Alessandro Pedrioli, Ilka Bartsch, Kirsten Richter, Paola Agnellini, Gregor Bedenikovic, Annette Oxenius

Open access · hybridAbstract read
In one paragraph

Article in European journal of immunology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-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

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. 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

9 authors at 1 institution in 1 country.

Ute GreczmielInstitute of Microbiology, ETH Zürich, Zürich, Switzerland.
Nike J KräutlerInstitute of Microbiology, ETH Zürich, Zürich, Switzerland.
Mariana BorsaInstitute of Microbiology, ETH Zürich, Zürich, Switzerland.
Alessandro PedrioliInstitute of Microbiology, ETH Zürich, Zürich, Switzerland.
Ilka BartschInstitute of Microbiology, ETH Zürich, Zürich, Switzerland.
Kirsten RichterInstitute of Microbiology, ETH Zürich, Zürich, Switzerland.
Paola AgnelliniInstitute of Microbiology, ETH Zürich, Zürich, Switzerland.
Gregor BedenikovicInstitute of Microbiology, ETH Zürich, Zürich, Switzerland.
Annette OxeniusInstitute of Microbiology, ETH Zürich, Zürich, Switzerland.ORCID 0000-0002-2079-2354
ETH Zurich · CH

Funding

ETH ZurichPromedica FoundationSchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung 310030_146140Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung 310030_166078
6 · The paper itself

Abstract

Persistent virus infections with non- or poorly cytopathic viruses are commonly associated with B cell dysregulations. These include the induction of hypergammaglobulinemia and the emergence of virus-unspecific antibodies. These seemingly unspecific antibody responses interfere with the virus-specific humoral immunity and contribute to delayed virus control. Whether these virus-unspecific antibodies are induced in the B cell follicle or at extrafollicular sites and whether one specific CD4 T cell subset is involved in the polyclonal B cell activation is unclear. Here we studied virus-unrelated IgG antibody responses against self or foreign antigens in the context of persistent lymphocytic choriomeningitis virus (LCMV) infection. We found that the LCMV-unspecific antibody response is short-lived and induced predominantly at extrafollicular sites and depends on the presence of LCMV-specific CD4 T cells. Our data support a scenario in which activated, virus-specific CD4 T cells provide help to non-specific B cells at extrafollicular sites, supporting the production of virus unspecific IgG antibodies during persistent viral infection.

Indexed as

AnimalsAntibodies, ViralB-LymphocytesCD4-Positive T-LymphocytesImmunoglobulin GLymphocyte ActivationLymphocytic ChoriomeningitisLymphocytic choriomeningitis virusMice, Inbred C57BLAntibodies, ViralImmunoglobulin GB cellsCD4 T cellschronic infectionLCMVpolyclonal B cell activation

Identifiers

PMID31724162
PMCPMC7079077
OpenAlexW2983968994

What OpenQuestion holds

Textmetadata
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.