Evidence map›Paper›PMID 30176915›Full record

ArticleGenome medicine2018

Increased DNA methylation variability in rheumatoid arthritis-discordant monozygotic twins.

Amy P Webster, Darren Plant, Simone Ecker, Flore Zufferey, Jordana T Bell, Andrew Feber, Dirk S Paul, Stephan Beck, Anne Barton, Frances M K Williams and 1 more

Open access · goldAbstract readTwin Study
In one paragraph

Article in Genome medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 2 pooled it
5.7field-weighted citation impact, top 3% 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

56 citing papers in PubMed, 2 syntheses or guidelines pooled it, 104 citations in OpenAlex.

  1. Pooled it
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  3. International journal of molecular medicine · 2026
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  10. Epigenomics · 2025
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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

11 authors at 6 institutions in 1 country.

Amy P WebsterArthritis Research UK Centre for Genetics and Genomics, Centre for Musculoskeletal Research, The University of Manchester, Manchester, UK. a.webster@ucl.ac.uk.ORCID 0000-0002-9824-2627
Darren PlantNIHR Manchester Biomedical Research Centre, Manchester Academy of Health Sciences, Manchester University Foundation Trust, Manchester, UK.
Simone EckerDepartment of Cancer Biology, UCL Cancer Institute, University College London, London, UK.
Flore ZuffereyDepartment of Twin Research and Genetic Epidemiology, King's College London, London, UK.
Jordana T BellDepartment of Twin Research and Genetic Epidemiology, King's College London, London, UK.
Andrew FeberDepartment of Cancer Biology, UCL Cancer Institute, University College London, London, UK.
Dirk S PaulMRC/BHF Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK.
Stephan BeckDepartment of Cancer Biology, UCL Cancer Institute, University College London, London, UK.
Anne BartonArthritis Research UK Centre for Genetics and Genomics, Centre for Musculoskeletal Research, The University of Manchester, Manchester, UK.
Frances M K WilliamsDepartment of Twin Research and Genetic Epidemiology, King's College London, London, UK.
Jane WorthingtonArthritis Research UK Centre for Genetics and Genomics, Centre for Musculoskeletal Research, The University of Manchester, Manchester, UK. jane.worthington@manchester.ac.uk.
CRUK Lung Cancer Centre of Excellence · GBKing's College London · GBUniversity of Manchester · GBCancer Research UK · GBManchester Academic Health Science Centre · GBUniversity of Cambridge · GB

Funding

Arthritis Research UK 20385Arthritis Research UK 20682Biotechnology and Biological Sciences Research Council BB/R006172/1British Heart Foundation RG/13/13/30194Horizon 2020 Framework Programme 693642IMI JU 115142-2Medical Research Council MR/K015346/1Medical Research Council MR/L003120/1Medical Research Council MR/M025411/1National Institute for Health Research NIHR-BTRU-2014-10074Versus Arthritis 20682Wellcome TrustWellcome Trust FP7/2007-2013
6 · The paper itself

Abstract

backgroundRheumatoid arthritis is a common autoimmune disorder influenced by both genetic and environmental factors. Epigenome-wide association studies can identify environmentally mediated epigenetic changes such as altered DNA methylation, which may also be influenced by genetic factors. To investigate possible contributions of DNA methylation to the aetiology of rheumatoid arthritis with minimum confounding genetic heterogeneity, we investigated genome-wide DNA methylation in disease-discordant monozygotic twin pairs.

methodsGenome-wide DNA methylation was assessed in 79 monozygotic twin pairs discordant for rheumatoid arthritis using the HumanMethylation450 BeadChip array (Illumina). Discordant twins were tested for both differential DNA methylation and methylation variability between rheumatoid arthritis and healthy twins. The methylation variability signature was then compared with methylation variants from studies of other autoimmune diseases and with an independent healthy population.

resultsWe have identified a differentially variable DNA methylation signature that suggests multiple stress response pathways may be involved in the aetiology of the disease. This methylation variability signature also highlighted potential epigenetic disruption of multiple RUNX3 transcription factor binding sites as being associated with disease development. Comparison with previously performed epigenome-wide association studies of rheumatoid arthritis and type 1 diabetes identified shared pathways for autoimmune disorders, suggesting that epigenetics plays a role in autoimmunity and offering the possibility of identifying new targets for intervention.

conclusionsThrough genome-wide analysis of DNA methylation in disease-discordant monozygotic twins, we have identified a differentially variable DNA methylation signature, in the absence of differential methylation in rheumatoid arthritis. This finding supports the importance of epigenetic variability as an emerging component in autoimmune disorders.

Indexed as

DNA MethylationAdultAgedArthritis, RheumatoidCore Binding Factor Alpha 3 SubunitEpigenesis, GeneticFemaleGenetic VariationHumansMaleMiddle AgedTwins, MonozygoticCore Binding Factor Alpha 3 SubunitRunx3 protein, humanAutoimmune diseaseDNA methylationEpigeneticsRheumatoid arthritisTwins

Identifiers

PMID30176915
PMCPMC6122744
OpenAlexW2800033387

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.