Evidence map›Paper›PMID 19714651›Full record

ArticleArthritis and rheumatism2009

HLA-B27 misfolding and the unfolded protein response augment interleukin-23 production and are associated with Th17 activation in transgenic rats.

Monica L DeLay, Matthew J Turner, Erin I Klenk, Judith A Smith, Dawn P Sowders, Robert A Colbert

Open access · greenAbstract read
In one paragraph

Article in Arthritis and rheumatism, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 192 papers.

0numbers the graph read from it
0cells of the map it votes in
192citing papers in PubMed
6.9field-weighted citation impact, top 2% 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

192 citing papers in PubMed, 388 citations in OpenAlex.

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  3. Immunometabolic regulation and tissue-resident immunity in autoimmune uveitis: from genetic susceptibility to the gut-spleen-eye axis.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
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132 more citing papers are in PubMed but not listed here.

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

6 authors at 2 institutions in 1 country.

Monica L DeLayCincinnati Children's Hospital Medical Center, and University of Cincinnati College of Medicine, Cincinnati, Ohio.
Matthew J Turner
Erin I Klenk
Judith A Smith
Dawn P Sowders
Robert A Colbert
Cincinnati Children's Hospital Medical Center · USUniversity of Cincinnati · US

Funding

Pathogenic Mechanisms in SpondyloarthritisZIAAR041184 · NIAMS · NATIONAL INSTITUTE OF ARTHRITIS AND MUSCULOSKELETAL AND SKIN DISEASES · PI COLBERT, ROBERT · 2009 to 2025
$47.6M
MECHANISM AND CONSEQUENCES OF HLA-B 27 MISFOLDINGR01AR046177 · NIAMS · CINCINNATI CHILDRENS HOSP MED CTR · PI GRIFFIN, THOMAS A · 2000 to 2010
$3.0M
PEDIATRIC RHEUMATOLOGY TRAINING GRANTT32AR007594 · NIAMS · CINCINNATI CHILDRENS HOSP MED CTR · PI GRIFFIN, THOMAS A · 1995 to 2009
$2.2M
HLA-B27 Misfolding in Spondyloarthropathy PathogenesisR01AR048372 · NIAMS · CHILDREN'S HOSPITAL MED CTR (CINCINNATI) · PI COLBERT, ROBERT A. · 2001 to 2005
$1.8M
NIAMS NIH HHS AR 48372NIAMS NIH HHS R01 AR046177NIAMS NIH HHS R01 AR048372NIAMS NIH HHS R01 AR 46177NIAMS NIH HHS T32 AR007594NIAMS NIH HHS T32 AR 07594
6 · The paper itself

Abstract

objectiveTo determine whether HLA-B27 misfolding and the unfolded protein response (UPR) result in cytokine dysregulation and whether this is associated with Th1 and/or Th17 activation in HLA-B27/human beta(2)-microglobulin (Hubeta(2)m)-transgenic rats, an animal model of spondylarthritis.

methodsCytokine expression in lipopolysaccharide (LPS)-stimulated macrophages was analyzed in the presence and absence of a UPR induced by chemical agents or by HLA-B27 up-regulation. Cytokine expression in colon tissue and in cells purified from the lamina propria was determined by real-time reverse transcription-polymerase chain reaction analysis, and differences in Th1 and Th17 CD4+ T cell populations were quantified after intracellular cytokine staining.

resultsInterleukin-23 (IL-23) was found to be synergistically up-regulated by LPS in macrophages undergoing a UPR induced by pharmacologic agents or by HLA-B27 misfolding. IL-23 was also increased in the colon tissue from B27/Hubeta(2)m-transgenic rats concurrently with the development of intestinal inflammation, and IL-17, a downstream target of IL-23, exhibited robust up-regulation in a similar temporal pattern. IL-23 and IL-17 transcripts were localized to CD11+ antigen-presenting cells and CD4+ T cells, respectively, from the colonic lamina propria. Colitis was associated with a 6-fold expansion of CD4+ IL-17-expressing T cells.

conclusionThe IL-23/IL-17 axis is strongly activated in the colon of B27/Hubeta(2)m-transgenic rats with spondylarthritis-like disease. HLA-B27 misfolding and UPR activation in macrophages can result in enhanced induction of the pro-Th17 cytokine IL-23. These results suggest a possible link between HLA-B27 misfolding and immune dysregulation in this animal model, with implications for human disease.

Indexed as

Animalsbeta 2-MicroglobulinCells, CulturedColonDisease Models, AnimalHLA-B27 AntigenHumansInterleukin-17Interleukin-23LipopolysaccharidesMacrophagesMiceMice, Inbred C57BLProtein ConformationRatsRats, Inbred F344beta 2-MicroglobulinHLA-B27 AntigenInterleukin-17Interleukin-23Lipopolysaccharides

Identifiers

PMID19714651
PMCPMC2893331
OpenAlexW1989969667

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.