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Newly identified genetic risk variants for celiac disease related to the immune response.


ABSTRACT: Our genome-wide association study of celiac disease previously identified risk variants in the IL2-IL21 region. To identify additional risk variants, we genotyped 1,020 of the most strongly associated non-HLA markers in an additional 1,643 cases and 3,406 controls. Through joint analysis including the genome-wide association study data (767 cases, 1,422 controls), we identified seven previously unknown risk regions (P < 5 x 10(-7)). Six regions harbor genes controlling immune responses, including CCR3, IL12A, IL18RAP, RGS1, SH2B3 (nsSNP rs3184504) and TAGAP. Whole-blood IL18RAP mRNA expression correlated with IL18RAP genotype. Type 1 diabetes and celiac disease share HLA-DQ, IL2-IL21, CCR3 and SH2B3 risk regions. Thus, this extensive genome-wide association follow-up study has identified additional celiac disease risk variants in relevant biological pathways.

SUBMITTER: Hunt KA 

PROVIDER: S-EPMC2673512 | biostudies-literature | 2008 Apr

REPOSITORIES: biostudies-literature

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Newly identified genetic risk variants for celiac disease related to the immune response.

Hunt Karen A KA   Zhernakova Alexandra A   Turner Graham G   Heap Graham A R GA   Franke Lude L   Bruinenberg Marcel M   Romanos Jihane J   Dinesen Lotte C LC   Ryan Anthony W AW   Panesar Davinder D   Gwilliam Rhian R   Takeuchi Fumihiko F   McLaren William M WM   Holmes Geoffrey K T GK   Howdle Peter D PD   Walters Julian R F JR   Sanders David S DS   Playford Raymond J RJ   Trynka Gosia G   Mulder Chris J J CJ   Mearin M Luisa ML   Verbeek Wieke H M WH   Trimble Valerie V   Stevens Fiona M FM   O'Morain Colm C   Kennedy Nicholas P NP   Kelleher Dermot D   Pennington Daniel J DJ   Strachan David P DP   McArdle Wendy L WL   Mein Charles A CA   Wapenaar Martin C MC   Deloukas Panos P   McGinnis Ralph R   McManus Ross R   Wijmenga Cisca C   van Heel David A DA  

Nature genetics 20080302 4


Our genome-wide association study of celiac disease previously identified risk variants in the IL2-IL21 region. To identify additional risk variants, we genotyped 1,020 of the most strongly associated non-HLA markers in an additional 1,643 cases and 3,406 controls. Through joint analysis including the genome-wide association study data (767 cases, 1,422 controls), we identified seven previously unknown risk regions (P < 5 x 10(-7)). Six regions harbor genes controlling immune responses, includin  ...[more]

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