Evidence map›Paper›PMID 22076939›Full record

ArticleArthritis and rheumatism2012

Role of interferon regulatory factor 7 in serum-transfer arthritis: regulation of interferon-β production.

Susan E Sweeney, Maripat Corr, Trevor B Kimbler

Abstract read
In one paragraph

Article in Arthritis and rheumatism, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

12 citing papers in PubMed, 30 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

3 authors at 1 institution in 1 country.

Susan E SweeneyUniversity of California San Diego, La Jolla, CA 92093-0663, USA. ssweeney@ucsd.edu
Maripat Corr
Trevor B Kimbler
University of California, San Diego · US

Funding

Regulation of the type I interferon response by IRFs in inflammatory arthritisR01AR059129 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FIRESTEIN, GARY S · 2011 to 2015
$1.7M
Role of a novel IKK-related kinase in inflammationK08AR052800 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SWEENEY, SUSAN ELAINE · 2006 to 2010
$708k
NIAMS NIH HHS AR-052800NIAMS NIH HHS K08 AR052800NIAMS NIH HHS K08 AR-052800-04S1NIAMS NIH HHS R01 AR059129
6 · The paper itself

Abstract

objectiveInnate immune responses activate synoviocytes and recruit inflammatory cells into the rheumatoid joint. Type I interferons (IFNs) play a role in autoimmunity, and IFN gene transcription is activated by IFN-regulatory factors (IRFs) in response to innate sensor recognition. The purpose of this study was to examine the effect of genetic deficiency of IRF-7 in a passive K/BxN serum-transfer model of arthritis.

methodsPassive-transfer arthritis was induced in IRF-7(-/-) mice, and additional groups were treated with IFNβ or poly(I-C). Clinical arthritis scoring, histologic assessment, micro-computed tomography, and synovial tissue quantitative polymerase chain reaction analysis were performed. Mouse serum was analyzed by enzyme-linked immunosorbent assay (ELISA).

resultsIn the passive K/BxN serum-transfer model, arthritis severity was significantly increased in IRF-7(-/-) mice compared with wild-type (WT) mice. In addition, expression of IFNβ in synovium and serum was decreased, potentially contributing to increased arthritis. IRF-7(-/-) mice injected with replacement IFNβ had a decrease in arthritis. Poly(I-C) treatment diminished arthritis in IRF-7(-/-) mice, restored synovial IFNβ gene expression, and increased serum levels of IFNβ. In vitro studies demonstrated that poly(I-C) stimulation of fibroblast-like synoviocytes (FLS) from IRF-7(-/-) mice resulted in increased induction of proinflammatory gene expression as compared with FLS from WT mice; however, IFNβ expression was not significantly different. In contrast, peritoneal macrophages from IRF-7(-/-) mice showed significantly less induction of IFNβ in response to poly(I-C) stimulation.

conclusionIRF-7 deficiency exacerbates arthritis and replacement treatment with IFNβ or poly(I-C) decreases arthritis severity. Both macrophage- and synoviocyte-specific roles of IRF-7 likely contribute to the increased arthritis. IRF-7 might play an antiinflammatory role in passive-transfer arthritis through regulation of macrophage IFNβ production.

Indexed as

AnimalsArthritis, ExperimentalCalcaneusImmunity, InnateInterferon-betaInterferon Regulatory Factor-7MiceRadiographySeverity of Illness IndexSynovial MembraneInterferon-betaInterferon Regulatory Factor-7

Identifiers

PMID22076939
PMCPMC3290705
OpenAlexW2074477446

What OpenQuestion holds

Textmetadata
LicenceTDM
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.