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dc.contributor.authorHarris, R. Alan
dc.contributor.authorNagy-Szakal, Dorottya
dc.contributor.authorMir, Sabina A.V.
dc.contributor.authorFrank, Eibe
dc.contributor.authorSzigeti, Reka
dc.contributor.authorKaplan, Jess L.
dc.contributor.authorBronsky, Jiri
dc.contributor.authorOpekun, Antone
dc.contributor.authorFerry, George D.
dc.contributor.authorWinter, Harland
dc.contributor.authorKellermayer, Richard
dc.coverage.spatialUnited Statesen_NZ
dc.date.accessioned2015-06-10T04:21:46Z
dc.date.available2014-08-01
dc.date.available2015-06-10T04:21:46Z
dc.date.issued2014
dc.identifier.citationHarris, R. A., Nagy-Szakal, D., Mir, S. A. V., Frank, E., Szigeti, R., Kaplan, J. L., … Kellermayer, R. (2014). DNA methylation-associated colonic mucosal immune and defense responses in treatment-naïve pediatric ulcerative colitis. Epigenetics, 9(8). http://doi.org/10.4161/epi.29446en
dc.identifier.issn1559-2294
dc.identifier.urihttps://hdl.handle.net/10289/9386
dc.description.abstractInflammatory bowel diseases (IBD) are emerging globally, indicating that environmental factors may be important in their pathogenesis. Colonic mucosal epigenetic changes, such as DNA methylation, can occur in response to the environment and have been implicated in IBD pathology. However, mucosal DNA methylation has not been examined in treatment-naïve patients. We studied DNA methylation in untreated, left sided colonic biopsy specimens using the Infinium HumanMethylation450 BeadChip array. We analyzed 22 control (C) patients, 15 untreated Crohn’s disease (CD) patients, and 9 untreated ulcerative colitis (UC) patients from two cohorts. Samples obtained at the time of clinical remission from two of the treatment-naïve UC patients were also included into the analysis. UC-specific gene expression was interrogated in a subset of adjacent samples (5 C and 5 UC) using the Affymetrix GeneChip PrimeView Human Gene Expression Arrays. Only treatment-naïve UC separated from control. One-hundred-and-twenty genes with significant expression change in UC (> 2-fold, P < 0.05) were associated with differentially methylated regions (DMRs). Epigenetically associated gene expression changes (including gene expression changes in the IFITM1, ITGB2, S100A9, SLPI, SAA1, and STAT3 genes) were linked to colonic mucosal immune and defense responses. These findings underscore the relationship between epigenetic changes and inflammation in pediatric treatment-naïve UC and may have potential etiologic, diagnostic, and therapeutic relevance for IBD.
dc.format.mimetypeapplication/pdf
dc.languageen
dc.publisherLANDES BIOSCIENCEen_NZ
dc.rightsThis is an author’s accepted version of an article published in the journal: Epigenetics. © 2014 Landes Bioscience. The definitive version can be accessed from http://www.tandfonline.com (DOI: 10.4161/ epi.29446)
dc.subjectMachine learning
dc.titleDNA methylation-associated colonic mucosal immune and defense responses in treatment-naïve pediatric ulcerative colitis
dc.typeJournal Article
dc.identifier.doi10.4161/epi.29446
dc.relation.isPartOfEpigenetics
pubs.begin-page1131en_NZ
pubs.elements-id84891
pubs.end-page1137en_NZ
pubs.issue8
pubs.volume9
dc.identifier.eissn1559-2308


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