Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2011-5-27
pubmed:abstractText
Primary sclerosing cholangitis (PSC) is a chronic cholestatic liver disease characterized by inflammation and fibrosis of the bile ducts. Both environmental and genetic factors contribute to its pathogenesis. To further clarify its genetic background, we investigated susceptibility loci recently identified for ulcerative colitis (UC) in a large cohort of 1,186 PSC patients and 1,748 controls. Single nucleotide polymorphisms (SNPs) tagging 13 UC susceptibility loci were initially genotyped in 854 PSC patients and 1,491 controls from Benelux (331 cases, 735 controls), Germany (265 cases, 368 controls), and Scandinavia (258 cases, 388 controls). Subsequently, a joint analysis was performed with an independent second Scandinavian cohort (332 cases, 257 controls). SNPs at chromosomes 2p16 (P-value 4.12 × 10(-4) ), 4q27 (P-value 4.10 × 10(-5) ), and 9q34 (P-value 8.41 × 10(-4) ) were associated with PSC in the joint analysis after correcting for multiple testing. In PSC patients without inflammatory bowel disease (IBD), SNPs at 4q27 and 9q34 were nominally associated (P < 0.05). We applied additional in silico analyses to identify likely candidate genes at PSC susceptibility loci. To identify nonrandom, evidence-based links we used GRAIL (Gene Relationships Across Implicated Loci) analysis showing interconnectivity between genes in six out of in total nine PSC-associated regions. Expression quantitative trait analysis from 1,469 Dutch and UK individuals demonstrated that five out of nine SNPs had an effect on cis-gene expression. These analyses prioritized IL2, CARD9, and REL as novel candidates. CONCLUSION: We have identified three UC susceptibility loci to be associated with PSC, harboring the putative candidate genes REL, IL2, and CARD9. These results add to the scarce knowledge on the genetic background of PSC and imply an important role for both innate and adaptive immunological factors.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1527-3350
pubmed:author
pubmed-author:BergquistAnnikaA, pubmed-author:BjörnssonEinarE, pubmed-author:BraunFelixF, pubmed-author:EllinghausEvaE, pubmed-author:FehrmannRudolf S NRS, pubmed-author:FolseraasTrineT, pubmed-author:FrankeAndreA, pubmed-author:FrankeLudeL, pubmed-author:FuJingyuanJ, pubmed-author:GüntherRainerR, pubmed-author:GroenHarry J MHJ, pubmed-author:HenckaertsLiesbetL, pubmed-author:Jan WestraHarmH, pubmed-author:JanseMarcelM, pubmed-author:KarlsenTom HTH, pubmed-author:LambertsLaetitia ELE, pubmed-author:MelumEspenE, pubmed-author:Muri BobergKirstenK, pubmed-author:OphoffRoel ARA, pubmed-author:PonsioenCyriel YCY, pubmed-author:PorteRobert JRJ, pubmed-author:RaychaudhuriSoumyaS, pubmed-author:SchrammChristophC, pubmed-author:SchreiberStefanS, pubmed-author:SchrumpfErikE, pubmed-author:SmolonskaJoannaJ, pubmed-author:SterneckMartinaM, pubmed-author:VermeireSeverineS, pubmed-author:WedemeyerJochenJ, pubmed-author:WeersmaRinse KRK, pubmed-author:WeismüllerTobias JTJ, pubmed-author:WijmengaCiscaC, pubmed-author:van den BergLeonard HLH
pubmed:copyrightInfo
Copyright © 2011 American Association for the Study of Liver Diseases.
pubmed:issnType
Electronic
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1977-85
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Three ulcerative colitis susceptibility loci are associated with primary sclerosing cholangitis and indicate a role for IL2, REL, and CARD9.
pubmed:affiliation
Department of Gastroenterology and Hepatology, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Multicenter Study, Research Support, N.I.H., Extramural