Evidence map›Paper›PMID 25888974›Full record

ArticleArthritis research & therapy2015

Estrogen regulates T helper 17 phenotype and localization in experimental autoimmune arthritis.

Annica Andersson, Alexandra Stubelius, Merja Nurkkala Karlsson, Cecilia Engdahl, Malin Erlandsson, Louise Grahnemo, Marie K Lagerquist, Ulrika Islander

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 2 pooled it
3.3field-weighted citation impact, top 6% 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

38 citing papers in PubMed, 2 syntheses or guidelines pooled it, 69 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

8 authors at 1 institution in 1 country.

Annica AnderssonDepartment of Rheumatology and Inflammation Research, Centre for Bone and Arthritis Research, The Sahlgrenska Academy, University of Gothenburg, Box 480, 405 30, Gothenburg, Sweden. annica.andersson@rheuma.gu.se.
Alexandra StubeliusDepartment of Rheumatology and Inflammation Research, Centre for Bone and Arthritis Research, The Sahlgrenska Academy, University of Gothenburg, Box 480, 405 30, Gothenburg, Sweden. alexandra.stubelius@rheuma.gu.se.
Merja Nurkkala KarlssonDepartment of Rheumatology and Inflammation Research, Centre for Bone and Arthritis Research, The Sahlgrenska Academy, University of Gothenburg, Box 480, 405 30, Gothenburg, Sweden. merja.nurkkala@rheuma.gu.se.
Cecilia EngdahlDepartment of Rheumatology and Inflammation Research, Centre for Bone and Arthritis Research, The Sahlgrenska Academy, University of Gothenburg, Box 480, 405 30, Gothenburg, Sweden. cecilia.engdahl@rheuma.gu.se.
Malin ErlandssonDepartment of Rheumatology and Inflammation Research, Centre for Bone and Arthritis Research, The Sahlgrenska Academy, University of Gothenburg, Box 480, 405 30, Gothenburg, Sweden. malin.erlandsson@gu.se.
Louise GrahnemoDepartment of Rheumatology and Inflammation Research, Centre for Bone and Arthritis Research, The Sahlgrenska Academy, University of Gothenburg, Box 480, 405 30, Gothenburg, Sweden. louise.grahnemo@gu.se.
Marie K LagerquistDepartment of Internal Medicine and Clinical Nutrition, Centre for Bone and Arthritis Research, The Sahlgrenska Academy, University of Gothenburg, Vita Stråket 11, 413 45, Gothenburg, Sweden. marie.lagerquist@medic.gu.se.
Ulrika IslanderDepartment of Rheumatology and Inflammation Research, Centre for Bone and Arthritis Research, The Sahlgrenska Academy, University of Gothenburg, Box 480, 405 30, Gothenburg, Sweden. ulrika.islander@gu.se.
University of Gothenburg · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe incidence and progression of many autoimmune diseases are sex-biased, which might be explained by the immunomodulating properties of endocrine hormones. Treatment with estradiol potently inhibits experimental autoimmune arthritis. Interleukin-17-producing T helper cells (Th17) are key players in several autoimmune diseases, particularly in rheumatoid arthritis. The aim of this study was to investigate the effects of estrogen on Th17 cells in experimental arthritis.

methodsOvariectomized DBA/1 mice treated with 17β-estradiol (E2) or placebo were subjected to collagen-induced arthritis (CIA), and arthritis development was assessed. Th17 cells in joints and lymph nodes were studied by flow cytometry. Lymph node Th17 cells were also examined in ovariectomized estrogen receptor α-knockout mice (ERα-/-) and wild-type littermates, treated with E2 or placebo and subjected to antigen-induced arthritis.

resultsE2-treated mice with established CIA showed reduced severity of arthritis and fewer Th17 cells in joints compared with controls. Interestingly, E2-treated mice displayed increased Th17 cells in lymph nodes during the early phase of the disease, dependent on ERα. E2 increased the expression of C-C chemokine receptor 6 (CCR6) on lymph node Th17 cells as well as the expression of the corresponding C-C chemokine ligand 20 (CCL20) within lymph nodes.

conclusionsThis is the first study in which the effects of E2 on Th17 cells have been characterized in experimental autoimmune arthritis. We report that E2 treatment results in an increase of Th17 cells in lymph nodes during the early phase of arthritis development, but leads to a decrease of Th17 in joints during established arthritis. Our data suggest that this may be caused by interference with the CCR6-CCL20 pathway, which is important for Th17 cell migration. This study contributes to the understanding of the role of estrogen in the development of autoimmune arthritis and opens up new fields for research concerning the sex bias in autoimmune disease.

Indexed as

AnimalsArthritis, ExperimentalChemokine CCL20EstradiolEstrogen Receptor alphaEstrogensFemaleFlow CytometryImmunophenotypingLymph NodesMiceMice, Inbred DBAMice, KnockoutOvariectomyReceptors, CCR6Sex FactorsCCL20 protein, mouseCCR6 protein, mouseChemokine CCL20EstradiolEstrogen Receptor alphaEstrogensReceptors, CCR6

Identifiers

PMID25888974
PMCPMC4355457
OpenAlexW2095487392

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.